CN220030597U - Rectangular precast slab die for asphalt pavement reclaimed materials - Google Patents

Rectangular precast slab die for asphalt pavement reclaimed materials Download PDF

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Publication number
CN220030597U
CN220030597U CN202321537560.1U CN202321537560U CN220030597U CN 220030597 U CN220030597 U CN 220030597U CN 202321537560 U CN202321537560 U CN 202321537560U CN 220030597 U CN220030597 U CN 220030597U
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China
Prior art keywords
plate
side wall
rectangular
fastening tab
asphalt pavement
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Active
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CN202321537560.1U
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Chinese (zh)
Inventor
余波
张永远
王书飞
黄星
廖洪波
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Guizhou Expressway Industry Co ltd
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Guizhou Expressway Industry Co ltd
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Abstract

The utility model provides a rectangular precast slab die for asphalt pavement reclaimed materials, which comprises a bottom plate, a lower die plate, a rectangular cavity body and an upper die plate which are sequentially and detachably connected.

Description

Rectangular precast slab die for asphalt pavement reclaimed materials
Technical Field
The utility model relates to the technical field of asphalt pavement recycling, in particular to a die for processing a rectangular precast slab by utilizing asphalt pavement recycling materials.
Background
Precast slabs, in particular rectangular precast slabs, are commonly used in engineering and markets as cement concrete precast slabs, and are common in the fields of ground pavement, curb pavement, ditch coverage, partial slope protection construction and the like. The cement concrete precast slab manufacturing principle is that a mould is placed on a vibrating platform, then mixed cement concrete is poured into the mould, vibrated by the vibrating platform for about 30 seconds, and taken down to be placed in a warehouse in a shady and cool place for health care and molding. For the placement time, the placement time of the steel mold is usually 5-8 hours in summer, the placement time of the plastic mold is usually about 12 hours in winter, the placement time of the plastic mold is about 24 hours in summer, and the placement time of the plastic mold is usually 2-3 days in winter. And (5) after the concrete is solidified and formed, removing the mould or demoulding and forming. That is, since cement concrete has strong fluidity, the conventional molds for cement concrete are all open molds, i.e., a mold structure having an upper portion fully open is adopted.
The applicant belongs to important enterprises as Guizhou high-speed groups and bears the maintenance work of most high-speed and high-grade highways in Guizhou provinces, wherein, a sweetgum maintenance base is designed and built as an asphalt pavement regeneration station by adopting a plant-mix thermal regeneration technology after being selected in a 'during-period high-speed' sweetgum section, so that the recycled asphalt pavement material subjected to repair transformation is recycled in the maintenance process of the 'benevolence hope expressway', and various coarse and fine aggregates in the recycled asphalt pavement material are recycled to the greatest extent and are recycled as road materials or regenerated aggregates.
After the applicant has conducted intensive investigation on the domestic recycling industry of the regenerated aggregates, a technical scheme of Liaoning new development highway science and technology maintenance limited company is selected for cooperation and introduction. So as to recycle various coarse and fine aggregates in the asphalt pavement reclaimed materials. Specifically, the formulation process and corresponding equipment related to the Chinese patent CN110436827B which has intellectual property rights and is prepared by milling materials of an asphalt pavement surface layer and regeneration and the Chinese patent CN110372262B which is prepared by milling materials of an asphalt pavement surface layer and regeneration are cooperated and introduced for the Chinese patent CN110436827B which has intellectual property rights and is prepared by the technology of Liaoning new development highway science and technology maintenance limited company. Referring to the technical schemes described in chinese patents CN110436827B and CN110372262B, in the technical schemes introduced by the applicant, the pavement bricks and the kerbstone are all rectangular precast slabs, but the sizes and the proportions are different, in both the technical schemes, the materials need to be vibrated and stirred in a vibrating machine to obtain a mixture three, and then the mixture three is placed in a pavement brick machine or a precast kerbstone machine for static pressure and health maintenance.
In the construction process of the sweetgum fruit curing base, the applicant needs to cultivate and construct own technical team through digestion and absorption of the introduced technology, so that a die tool can be designed and manufactured at any time according to actual working needs in subsequent curing work to prepare customized prefabricated members, dependence on customizing equipment of manufacturers can be greatly reduced, and the running cost of the whole system is reduced. In addition, the sweetgum fruit curing base is a newly built base, is tightly close to 'kernel hope high speed', and is formed by building a flat mountain in a mountain area, and not only has a sloping field but also has a mountain body, so that the sweetgum fruit curing base has the condition of simulating and building various scenes, and is suitable for adjusting, testing and testing die tools of prefabricated plates with different structural characteristics by technical teams of the applicant. Therefore, the applicant needs to design a rectangular precast slab die capable of adjusting the size to test different rectangular precast slabs so as to meet the requirements of future maintenance work aiming at the characteristics that the recycled materials of the used asphalt pavement are not strong in fluidity and have high requirements on die gaps like cement concrete.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide a rectangular precast slab die for asphalt pavement reclaimed materials, so as to reduce or avoid the problems.
In order to solve the technical problems, the utility model provides a rectangular precast slab die for asphalt pavement reclaimed materials, which comprises a bottom plate, a lower die plate, a rectangular cavity and an upper die plate, wherein the bottom plate, the rectangular cavity and the upper die plate are sequentially and detachably connected, the bottom plate is provided with at least two first positioning bolts and at least two guide rods, the lower die plate is provided with first positioning mounting holes corresponding to the first positioning bolts, the lower die plate is provided with at least four second positioning bolts, the rectangular cavity is formed by combining two first side wall plates and two second side wall plates which are oppositely arranged, the bottoms of the first side wall plates are provided with first fastening lugs, the two side walls are provided with first extending connecting parts, the bottoms of the second side wall plates are provided with second fastening lugs, the two side walls are provided with second connecting lugs corresponding to the first extending connecting parts, the second fastening lugs and the second connecting lugs are all provided with connecting holes, the first fastening lugs and the second fastening lugs are used for connecting the first connecting lugs with the second connecting lugs and the guide rods and correspond to the working plates, and the working plates are connected with the corresponding to the guide plates through the corresponding to the connecting holes of the rectangular precast plates.
Preferably, the bottom plate is a wooden structure or is made of a metal plate.
Preferably, the lower die plate is a plate-like structure made of a high-temperature resistant hard resin material.
Preferably, the first side wall panel and the second side wall panel are each made of steel sheet having a thickness of 1.5 mm.
Preferably, the rectangular boss has a thickness of 2mm.
The rectangular precast slab die for the asphalt pavement reclaimed materials provided by the utility model adopts a modularized structure, can be used for easily customizing rectangular precast blocks with specific patterns or characters according to the needs, is convenient to assemble and disassemble, and can be used for easily adjusting the size of a die cavity according to the size needs, so that the cost of outsourcing customizing the die is greatly saved.
Drawings
The following drawings are only for purposes of illustration and explanation of the present utility model and are not intended to limit the scope of the utility model. Wherein,
fig. 1 is a schematic view showing a schematic perspective exploded structure of a rectangular precast slab mold for asphalt pavement recycling according to an embodiment of the present utility model;
FIG. 2 is a schematic perspective view of the first sidewall plate of FIG. 1;
FIG. 3 is a schematic perspective view of the second sidewall plate of FIG. 1;
fig. 4 is a schematic diagram of the perspective structure of the upper template of fig. 1.
Detailed Description
For a clearer understanding of technical features, objects, and effects of the present utility model, a specific embodiment of the present utility model will be described with reference to the accompanying drawings. Wherein like parts are designated by like reference numerals.
Fig. 1 is a schematic view showing a schematic perspective exploded structure of a rectangular precast slab mold for asphalt pavement recycling according to an embodiment of the present utility model; FIG. 2 is a schematic perspective view of the first sidewall plate of FIG. 1; FIG. 3 is a schematic perspective view of the second sidewall plate of FIG. 1; fig. 4 is a schematic diagram of the perspective structure of the upper template of fig. 1. Referring to fig. 1 to 4, the utility model provides a rectangular precast slab die for asphalt pavement reclaimed materials, which comprises a bottom plate 1, a lower die plate 2, a rectangular cavity 3 and an upper die plate 4 which are detachably connected in sequence, wherein the bottom plate 1 can be made of wood or metal plates, and the purpose of the rectangular precast slab die is mainly to provide an assembling reference position of an integral die, and the integral die is moved between different process equipment such as a charging equipment and a pressing equipment. The base plate 1 is provided with at least two first positioning bolts 11.
The lower mold plate 2 may be a plate-shaped structure made of a high temperature resistant hard resin material (for example, PVDF or PTEE material), which provides a positioning and mounting location for the rectangular cavity 3 on one hand, and a customizable molding surface for the rectangular prefabricated plate on the other hand, for example, as shown in fig. 2, the lower mold plate 2 is provided with a female mold of a "kernel" shape, so that a top surface of the finally prepared rectangular prefabricated plate has a "kernel" shape. When the rectangular prefabricated panels to be manufactured are required to be provided with various patterns or figures on the top surface, it is possible to replace the lower template 2 having a specific pattern or figure. The lower die plate 2 is provided with a first positioning mounting hole 21 corresponding to the first positioning bolt 11, the lower die plate 2 is assembled on the set position of the bottom plate 1 through the cooperation of the first positioning mounting hole 21 and the first positioning bolt 11, an upper nut is mounted to fasten the lower die plate 2 and the bottom plate 1, and the lower die plate 2 and the bottom plate 1 can be easily separated by removing the nut. The lower die plate 2 is provided with at least four second positioning bolts 22.
The rectangular cavity 3 is formed by combining two first side wall plates 31 and two second side wall plates 32 which are oppositely arranged. Can be prepared by adopting steel plates with the thickness of 1.5 mm. Referring to fig. 2, a first fastening tab 311 is disposed at the bottom of the first side wall plate 31, a first extending connection portion 312 is disposed on two side walls, a second fastening tab 321 is disposed at the bottom of the second side wall plate 32, and a second connecting tab 322 is disposed on two side walls corresponding to the first extending connection portion 312, as shown in fig. 3. The first fastening tab 311, the first extending connection portion 312, the second fastening tab 321 and the second connecting tab 322 are provided with connection holes, wherein the connection holes of the first fastening tab 311 and the second fastening tab 321 are used for being connected with the second positioning bolt 22, and the connection holes of the first extending connection portion 312 and the second connecting tab 322 are used for being connected with each other through bolts. During assembly, the first extension connection portion 312 and the second connection lug 322 may be fixedly connected by bolts, so that the two first side wall plates 31 and the two second side wall plates 32 may be combined into one rectangular cavity 3, and then the first fastening lug 311 and the second fastening lug 321 may be connected with the second positioning bolt 22, so that the rectangular cavity 3 and the lower die plate 2 may be combined into one rectangular cavity with an open upper structure.
Referring to fig. 2 and 4, the upper mold plate 4 includes a pressure plate 41 and a working plate 42 which are fixedly connected, the working plate 42 is provided with a rectangular protrusion 421 corresponding to the rectangular cavity 3, the bottom plate 1 is provided with at least two guide rods 12, the working plate 42 is provided with guide holes 422 corresponding to the guide rods 12, the pressure plate 41 and the working plate 42 can be made of steel plates with a thickness of 1.5mm, the pressure plate 41 and the working plate 42 can be welded and connected by a metal connection block 43, only a pair of metal connection blocks 43 are shown for simplicity in the drawing, and those skilled in the art should understand that the metal connection blocks 43 can be welded and connected on four sides for ensuring the connection strength. The rectangular boss 421 may be made of a hard resin material (e.g., PVDF or PTEE) and is bonded to the working plate 42. Or may be formed by bending a metal plate and welding the bent metal plate to the working plate 42. The thickness of the rectangular boss 421 may be 2mm, and the size of the rectangular boss 421 may be set slightly smaller than the size of the rectangular cavity 3, for example, each side may be 1mm smaller.
The working principle of the rectangular precast slab die for asphalt pavement reclaimed materials provided by the utility model is that firstly, the lower die plate 2 is assembled on the bottom plate 1, then, the two first side wall plates 31 and the two second side wall plates 32 are combined into one rectangular cavity 3, then, the rectangular cavity 3 is assembled on the lower die plate 2, after the assembly is finished, the bottom plate 1 can be placed into a feeding device, and materials are fed into the cavity of the rectangular cavity 3, for example, the mixture III prepared by Chinese patent CN110436827B or CN110372262B in the background art. After the material is put in, the bottom plate 1 can be transferred to the press, then the upper template 4 is assembled on the bottom plate 1, the assembly process is very simple, the guide holes 422 are sleeved into the guide rods 12, and at the moment, the material in the cavity of the rectangular cavity 3 can form a support for the rectangular protruding portion 421. When the ram of the press descends, the ram contacts the pressure plate 41 and drives the working plate 42 downward via the pressure plate 41 and the metal connection block 43, so that the material can be compacted by the rectangular boss 421 and the static pressure can be maintained. When the deformation of the material in the rectangular outer mold 3 in the vertical direction is smaller than the thickness of the rectangular boss 421 during the compaction, the working plate 42 does not contact the rectangular cavity 3 (i.e., the first side wall plate 31 and the second side wall plate 32) due to the support of the rectangular boss 421. For different materials, when the compaction degree of the materials needs to be controlled, the thickness of the rectangular protruding portion 421 can be controlled to avoid excessive compaction of the materials, for example, the thickness of the rectangular protruding portion 421 may be 2mm, which means that after the rectangular protruding portion 421 with the total thickness of 2mm enters the cavity of the rectangular cavity 3, the working plate 42 will not continue to descend because the working plate 42 will contact the first side wall plate 31 and the second side wall plate 32.
The height of the guide bar 13 may be slightly larger than the height of the rectangular cavity 3 plus the thickness of the working plate 42, for example, may be set to be 5-8mm larger than the height of the rectangular cavity 3 plus the thickness of the working plate 42, and the interval between the pressure plate 41 and the working plate 42, that is, the height of the metal connection block 43 may be set to be twice the difference of the height of the guide bar 13 minus the sum of the height of the rectangular cavity 3 and the thickness of the working plate 42, as previously described, and the height of the metal connection block 43 may be set to be 10-16mm when the difference of the height of the guide bar 13 minus the sum of the height of the rectangular cavity 3 and the thickness of the working plate 42 is 5-8mm, so that it is ensured that the upper die plate 4 is not interfered by the guide bar 13 when it moves downward.
After the static pressure is finished, the pressure head can be lifted, the upper template 4 can be removed, and the bottom plate 1 is moved to an open position for curing. After the curing is finished, the bolts between the first extending connection portion 312 and the second connecting lug 322 can be removed, then the fastening nuts of the first fastening lug 311 and the second fastening lug 321 can be removed, and then the first side wall plate 31 and the second side wall plate 32 can be removed easily, so that only the formed rectangular prefabricated block is left on the lower die plate 2. Therefore, the formed rectangular precast block can be conveniently taken down and put into a finished product warehouse.
The rectangular precast slab die for the asphalt pavement reclaimed materials provided by the utility model adopts a modularized structure, can be used for easily customizing rectangular precast blocks with specific patterns or characters according to the needs, is convenient to assemble and disassemble, and can be used for easily adjusting the size of a die cavity according to the size needs, so that the cost of outsourcing customizing the die is greatly saved.
It should be understood by those skilled in the art that while the present utility model has been described in terms of several embodiments, not every embodiment contains only one independent technical solution. The description is given for clearness of understanding only, and those skilled in the art will understand the description as a whole and will recognize that the technical solutions described in the various embodiments may be combined with one another to understand the scope of the present utility model.
The foregoing is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model. Any equivalent alterations, modifications and combinations thereof will be effected by those skilled in the art without departing from the spirit and principles of this utility model, and it is intended to be within the scope of the utility model.

Claims (5)

1. The utility model provides a bituminous paving reclaimed materials rectangle prefabricated sheet mould, its characterized in that, it includes the bottom plate that the connection can be dismantled in proper order, lower bolster, rectangle die cavity and cope match-plate pattern, the bottom plate is provided with two at least first positioning bolts and two at least guide bars, the lower bolster corresponds first positioning bolt is provided with first locating mounting hole, the lower bolster is provided with four at least second positioning bolts, the rectangle die cavity is formed by two first side wall boards and two second side wall boards that set up relatively, first side wall board bottom is provided with first fastening tab, two lateral walls are provided with first extension connecting portion, second side wall board bottom is provided with the second fastening tab, two lateral walls correspond first extension connecting portion is provided with the second connecting tab, first fastening tab first extension connecting portion the second fastening tab with the second connecting tab all is provided with the connecting hole, first fastening tab with the connecting hole of second fastening tab is used for with two opposite setting first side wall boards and two second side wall boards are provided with first extension connecting portion, second side wall boards are provided with second fastening tab, two side wall boards are provided with second fastening tab, second fastening tab.
2. The asphalt pavement recycling rectangular precast slab mold according to claim 1, wherein said bottom plate is of a wooden structure or made of a metal plate.
3. The asphalt pavement recycling rectangular precast slab mold according to claim 1, wherein said lower die plate is a plate-like structure made of a high temperature resistant hard resin material.
4. The asphalt pavement recycling rectangular precast slab mold according to claim 1, wherein said first sidewall plate and said second sidewall plate are each made of a steel plate having a thickness of 1.5 mm.
5. The asphalt pavement recycling rectangular precast slab mold according to claim 1, wherein the thickness of the rectangular boss is 2mm.
CN202321537560.1U 2023-06-16 2023-06-16 Rectangular precast slab die for asphalt pavement reclaimed materials Active CN220030597U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321537560.1U CN220030597U (en) 2023-06-16 2023-06-16 Rectangular precast slab die for asphalt pavement reclaimed materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321537560.1U CN220030597U (en) 2023-06-16 2023-06-16 Rectangular precast slab die for asphalt pavement reclaimed materials

Publications (1)

Publication Number Publication Date
CN220030597U true CN220030597U (en) 2023-11-17

Family

ID=88738886

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321537560.1U Active CN220030597U (en) 2023-06-16 2023-06-16 Rectangular precast slab die for asphalt pavement reclaimed materials

Country Status (1)

Country Link
CN (1) CN220030597U (en)

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