CN111791341A

CN111791341A - Forming device of cement-based stone-like road edge stone

Info

Publication number: CN111791341A
Application number: CN201911177138.8A
Authority: CN
Inventors: 卢厚杰; 徐自明; 王乾
Original assignee: Changzhou Vocational Institute of Light Industry
Current assignee: Changzhou Vocational Institute of Light Industry
Priority date: 2019-04-01
Filing date: 2019-11-26
Publication date: 2020-10-20
Also published as: CN111791342A; CN212602446U; CN109986678A; CN212045222U

Abstract

The invention relates to a molding device of a cement-based stone-like section road edge stone, belonging to the technical field of artificial stones, wherein an upper die mechanism comprises a core; the movable lower die mechanism comprises a die cavity, and the die cavity and the die core are closed to form a concrete die cavity; the upper drainage mechanism is fixedly arranged on the upper die mechanism and is communicated with the concrete cavity through the mold core; the lower drainage mechanism is fixedly arranged on the movable lower die and is communicated with the concrete cavity. The very big quilt of curbstone shaping time is shortened, production efficiency is showing and is improving, the surface smoothness of fashioned curbstone, smooth finish is good, high appearance quality, the shaping is fast, very big improvement production efficiency, because dual function, closely knit degree is high, the water loss rate is high, the semi-manufactured goods of curbstone after the drawing of patterns can reach pile up neatly transport intensity, but mould repeatedly usable, can carry out the suppression production of feeding of once more after the curbstone drawing of patterns, mould reuse, the input on the mould is low, the output is high, very big reduction in production cost.

Description

Forming device of cement-based stone-like road edge stone

Technical Field

The invention relates to the technical field of artificial stones, in particular to a forming device of a cement-based stone-like road edge stone.

Background

With the development of the urbanization process of China being different day by day and the continuous improvement of the living standard of people, the construction of municipal infrastructure is as fierce as well as the road construction is taken as the life line of urban traffic and also enters the large-scale implementation process. Whereas curbstones are an important component in road furniture. The curb stone is a boundary stone for a strip-shaped block-shaped object to be used at the edge of a road surface, is a boundary line for distinguishing a traffic lane, a sidewalk, a green land, an isolation zone and other parts of the road surface, plays a role in guaranteeing traffic safety of pedestrians and vehicles and guaranteeing the tidiness of the edge of the road surface, can play a role in beautifying the road and protecting the road surface, has huge use amount in the construction of various infrastructures such as landscaping, road construction, old city reconstruction and the like, and has a very wide application range.

At present, the curbstone used in China is mainly divided into two types of granite stone and concrete in terms of material, the granite stone is a non-renewable resource and is relatively expensive and high in cost, the main direction of the domestic curbstone research is changed from the traditional stone to the concrete material, and the stone-like curbstone concrete and the preparation process are researched and developed, so that the production mode which is more economic, more environment-friendly and easier to process can be realized, and the social responsibility of protecting natural resources and sustainable development is reflected. However, although the old concrete pressing method is applied on a large scale, the production process has many places to be improved. According to the application scenario of the road edge stone, the road edge stone is required to have two characteristics: the appearance is smooth and neat, and the road beautifying effect is improved; high strength, durability, no decomposition in the sun and rain, no easy breakage under the action of external force and long service life.

The concrete road edge stone is mainly formed by adopting a mold under normal pressure, and the traditional mold pressing production process comprises the following steps: 1) pouring the concrete mixture into a mould, performing high-frequency oscillation for 1 hour at normal temperature and normal pressure for initial setting, then performing solidification for 24 hours, 2) demolding and forming, and 3) naturally aging the demolded curbstone for 3-5 days, and completely drying the curbstone for use. The prior preparation process has several problems to be limited to the limitation of the labor force for the rapid molding of the curb stone: when concrete enters a mould for forming, in order to ensure certain fluidity of the concrete to fill the whole cavity, a large amount of water is required to be added for dilution, during solidification, although a large-pressure extrusion mode is adopted for drainage and exhaust, so that the curb is compacted, the dehydration is difficult to be clean, the water residue can fill gaps in the curb, the strength and the performance are reduced, and the service life is short; secondly, the demolding time is long, the cement needs to stand for 1-2 days after being injected into the mold to be demolded, the natural aging needs 3-5 days again, 4-7 days are needed from production to use of one curbstone, the molding efficiency is extremely low, and the production consumption is greatly limited; and thirdly, demolding can be carried out after air drying is carried out on the curbstone molding, cement is injected into the mold during each molding and then is detached together with the mold and stored in a normal-temperature drying warehouse, one curbstone is produced to correspond to one pair of molds, a plurality of pairs of molds are required to be matched during large-yield production, and the investment cost of the molds is very high. Therefore, the existing preparation process of the curbstone has three problems of poor quality, high cost and low efficiency and needs to be solved urgently.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the problem that the residual of moisture in the traditional curbstone can make the inside space that is full of curbstone, reduce intensity and performance, short service life and drawing of patterns time are long, the mould input cost is high, provide a forming device of imitative stone type curbstone of cement base.

The technical scheme adopted by the invention for solving the technical problems is as follows: a cement-based stone-like type curb forming device, comprising:

an upper die mechanism: the upper die mechanism comprises a core;

moving the lower die mechanism: the movable lower die mechanism comprises a die cavity, and the die cavity and the die core are closed to form a concrete die cavity;

the upper drainage mechanism is fixedly arranged on the upper die mechanism and is communicated with the concrete cavity through the core;

and the lower drainage mechanism is fixedly arranged on the movable lower die mechanism and is communicated with the concrete cavity.

Further, the lower moving die mechanism comprises a lower die base, a moving platform is slidably mounted on the lower die base through a guide rail, the moving platform is driven by a first driving mechanism to reciprocate linearly along the guide rail, the core is just opposite to or far away from the moving platform, an intermediate plate is arranged on the moving platform in a lifting mode, the cavity is arranged on the intermediate plate, and the intermediate plate is driven by a second driving mechanism to lift along the height direction of the cavity.

In order to enable the mobile platform to be capable of lifting stably, a guide limiting mechanism is arranged between the mobile platform and the middle plate and comprises a guide post and a guide sleeve, the guide sleeve is fixedly installed on the mobile platform, the guide post is fixedly installed on the middle plate and is slidably inserted into the guide sleeve, and a limiting plate for limiting the guide post to be separated from the guide sleeve is fixedly installed at the lower end of the guide post.

Further, the upper die mechanism comprises an upper die base, the upper die base is fixedly mounted above the lower die base through a guide pillar, an upper die movable plate is slidably mounted on the guide pillar, a hydraulic machine is fixedly mounted on the upper die base, an extending end of the hydraulic machine penetrates through the upper die base and then is fixedly connected with the upper die movable plate, the hydraulic machine drives the upper die movable plate to do reciprocating linear motion along the height direction of the cavity, and the core is fixedly mounted on the upper die movable plate through a core fixing plate.

In order to enable the core to be extracted from the cavity rapidly, the upper die mechanism further comprises a die separating mechanism, the die separating mechanism comprises a third driving mechanism and a pressing block, the third driving mechanism is fixedly mounted on the upper die movable plate, and the third driving mechanism drives the pressing block to do reciprocating linear motion along the height direction of the cavity.

Further, go up drainage mechanism and include mould drain bar and last mould filtering component, go up drainage bar fixed mounting at the core lower surface, last drainage channel has been seted up on the last mould drain bar, last drainage pipeline has been seted up on the core, last drainage pipeline and last drainage channel intercommunication, last drainage pipeline has the vacuum pump through last mould hose intercommunication, the intercommunication has last mould filter on the last mould hose, the intercommunication has last mould control valve on last mould hose between last mould filter and the vacuum pump, last mould filtering component fixed mounting is at the lower surface of last mould drain bar.

Further, the lower drainage mechanism comprises a lower drainage plate and a lower filtering assembly, the lower drainage plate is fixedly installed right below the upper cavity of the moving platform, a lower drainage channel is formed in the lower drainage plate, a lower drainage pipeline is formed in the moving platform and communicated with the lower drainage channel, the lower drainage pipeline is communicated with a water storage tank through a lower hose, a lower die filter is communicated with the lower hose, a lower die control valve is communicated with the lower hose between the lower die filter and the water storage tank, and the lower filtering assembly is fixedly installed on the upper surface of the lower drainage plate.

Further, go up mould drain bar and lower mould drain bar and all include the plate body, drainage through hole has evenly been seted up on the plate body, water drainage tank has been seted up to the one side of plate body, water drainage tank intercommunication each drainage through hole goes up drainage through hole and water drainage tank on the mould drain bar and constitutes drainage channel, and drainage through hole and water drainage tank on the lower mould drain bar constitute drainage channel.

Further, go up mould filtering component and lower mould filtering component and all include the installing frame, the installing frame cover is established outside the plate body, the one side fixed mounting of installing frame has the polyamide fibre filter cloth, the polyamide fibre filter cloth is laminated with the plate body surface, the outer fixed mounting of polyamide fibre filter cloth has stainless wire net.

Further, the first driving mechanism comprises a motor, a first connecting rod and a second connecting rod, the motor is fixedly installed on the lower die base, one end of the first connecting rod is fixedly installed at the output end of the motor, the other end of the first connecting rod is hinged to one end of the second connecting rod, and the other end of the second connecting rod is hinged to the moving platform.

The cement-based stone-like curb forming device has the advantages that the forming time of the curb is greatly shortened, the production efficiency is remarkably improved, the surface flatness and the smoothness of the formed curb are good, the appearance quality is high, the forming speed is high, the production efficiency is greatly improved, due to double effects, the compactness is high, the water loss rate is high, the semi-finished product of the demolded curb can reach the stacking and carrying strength, the die can be reused, the curb can be subjected to charging and pressing production again after being demolded, the die is recycled, the investment on the die is low, the output is high, and the production cost is greatly reduced.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a three-dimensional schematic of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a two-dimensional cross-sectional view of the present invention;

fig. 4 is a three-dimensional schematic view of a plate body according to the present invention;

FIG. 5 is a top view of the intermediate plate of the present invention;

FIG. 6 is a cross-sectional view of an intermediate plate in the present invention;

fig. 7 is a graph showing the relationship between the compressive strength and the curing period of the road edge stone of the present invention, compared with the road edge stone manufactured by the dry process and the road edge stone manufactured by the wet process.

In the figure: 3-1 part of mold core, 3-1-1 part of upper drainage pipeline, 3-2 parts of lower mold base, 3-3 parts of guide rail, 3-4 parts of moving platform, 3-4-1 part of lower drainage pipeline, 3-5 parts of first driving mechanism, 3-5-1 part of motor, 3-5-2 parts of first connecting rod, 3-5-3 parts of second connecting rod, 3-6 parts of intermediate plate, 3-6-1 part of cavity, 3-7 parts of second driving mechanism, 3-8 parts of guide column, 3-9 parts of guide sleeve, 3-10 parts of limit plate, 3-11 parts of upper mold base, 3-12 parts of guide column, 3-13 parts of upper mold plate, 3-14 parts of hydraulic press, 3-15 parts of mold core fixing plate, 3-16 parts of third driving mechanism, 3-17 parts of a compaction block, 3-18 parts of an upper die drainage plate, 3-19 parts of an upper die hose, 3-20 parts of a vacuum pump, 3-21 parts of an upper die filter, 3-22 parts of an upper die control valve, 3-23 parts of a lower die drainage plate, 3-24 parts of a lower die hose, 3-25 parts of a water storage tank, 3-26 parts of a lower die filter, 3-27 parts of a lower die control valve, 3-28 parts of a plate body, 3-28-1 parts of a drainage through hole, 3-28-2 parts of a drainage groove, 3-29 parts of a mounting frame, 3-30 parts of nylon filter cloth and 3-31 parts of a stainless steel wire net.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in fig. 1 and 2, in the cement-based stone-like road edge stone forming device, a core 3-1 applies pressure to the upper surface of a concrete mixed wet material, a part of extruded free water moves to the lower surface of the concrete mixed wet material, and the other part of the extruded free water emerges from the upper surface of the concrete mixed wet material, so that an upper water flow and a lower water flow are formed, in order to smoothly discharge the two water flows, the forming device comprises an upper die mechanism with the core 3-1, a lower die mechanism with a cavity 3-6-1, an upper drainage mechanism and a lower drainage mechanism, the lower moving die mechanism comprises a lower die base 3-2, a moving platform 3-4 is slidably mounted on the lower die base 3-2 through a guide rail 3-3, the moving platform 3-4 is driven by a first driving mechanism 3-5 to reciprocate along the guide rail 3-3, the alignment or the distance from the core 3-1 is realized, the movable platform 3-4 is provided with a middle plate 3-6 in a lifting manner, the cavity 3-6-1 is arranged on the middle plate 3-6, the middle plate 3-6 is driven by a second driving mechanism 3-7 to lift along the height direction of the cavity 3-6-1, and the second driving mechanism 3-7 is an air cylinder or a hydraulic cylinder. A guide limiting mechanism is arranged between the moving platform 3-4 and the middle plate 3-6 and comprises guide columns 3-8 and guide sleeves 3-9, the guide sleeves 3-9 are fixedly installed on the moving platform 3-4, the guide columns 3-8 are fixedly installed on the middle plate 3-6, the guide columns 3-8 are slidably inserted into the guide sleeves 3-9, and limiting plates 3-10 for limiting the guide columns 3-8 to be separated from the guide sleeves 3-9 are fixedly installed at the lower ends of the guide columns 3-8. The first driving mechanism 3-5 comprises a motor 3-5-1, a first connecting rod 3-5-2 and a second connecting rod 3-5-3, the motor 3-5-1 is fixedly arranged on the lower die base 3-2, one end of the first connecting rod 3-5-2 is fixedly arranged at the output end of the motor 3-5-1, the other end of the first connecting rod 3-5-3 is hinged with one end of the second connecting rod 3-5-3, the other end of the second connecting rod 3-5-3 is hinged with the movable platform 3-4, the lower die is moved out towards the side edge, from the production angle, the die cavity is exposed, the feeding is convenient, the feeding is rapid, the production efficiency can be greatly improved, the die cavity can be observed and detected during each feeding, whether the demoulding in the die cavity is thorough or not can be detected, and the forming quality can be improved again, from the mould angle, the whole outside of lower mould is convenient for overhaul the mould and is maintained, shortens the maintenance time, reduces the maintenance cost to, this kind of reinforced mode can make the relative simple of mould structure, and the lower mould is whole to be shifted out reinforced, and reinforced efficient, the reinforced operation of being convenient for need not be on mould itself design reinforced structure, reduces mould complexity, reduces mould manufacturing cost.

As the cavity 3-6-1 is extruded in the initial setting and forming process of the curbstone, tests verify that a test piece with the pressure within the range of 8-15 Mpa can be initially set and formed, the applied pressure is removed after forming, one-time working cycle is completed, and the forming and auxiliary time is 3 min. Therefore, the working state of the side wall of the cavity 3-6-1 is the condition of bearing alternating load for a long time, the service life of the cavity 3-6-1 part is more than dozens of thousands of times according to the annual production of the curbstone, and if the thickness of the side wall is too small, plastic deformation and even damage can be caused due to insufficient strength. The cavity 3-6-1 must therefore have sufficient strength. The cavity 3-6-1 is formed by combining parts such as a pressure head, an intermediate plate 3-6, a backing plate and the like, wherein the key part is the intermediate plate 3-6, and the stress condition of the intermediate plate is shown in figure 6.

The rectangular cavity 3-6-1 of the intermediate plate 3-6, as shown in fig. 5 and 6, has a combined effect of tensile and bending stresses on each side, which can be calculated as an end-fixed beam, with the maximum value of the bending stress at the two ends of the beam, and the bending stress σ w is:

the tensile stress σ b caused by loading of adjacent sidewalls is:

the total stress sigmaz should be less than the allowable stress [ sigma ] of the material of the intermediate plates 3-6, i.e.:

in the formula, the general curb b < l²Thus σ b < σ w, and σ b term can be ignored, then the cavity 3-6-1 sidewall s is:

where s-rectangle is thick towards the side wall, mm;

p-sidewall pressure in the cavity 3-6-1, Mpa;

h1 — sidewall height to withstand pressure, mm;

l-the length of the long side of the side wall of the cavity 3-6-1 is mm;

b-the side length of the short edge of the side wall of the cavity 3-6-1 is mm;

h, the total height of the side wall of the cavity 3-6-1 is mm;

the upper die mechanism comprises an upper die base 3-11, the upper die base 3-11 is fixedly arranged above a lower die base 3-2 through a guide pillar 3-12, an upper die movable plate 3-13 is slidably arranged on the guide pillar 3-12 through a guide sleeve, a hydraulic machine 3-14 is fixedly arranged on the upper die base 3-11, and the hydraulic machine 3-14 selects a nominal force of 315 kgf/cm²The extension end of the hydraulic machine 3-14 penetrates through the upper die holder 3-11 and then is fixedly connected with the upper movable plate 3-13, the hydraulic machine 3-14 drives the upper movable plate 3-13 to do reciprocating linear motion along the height direction of the cavity 3-6-1, and the mold core 3-1 is fixedly arranged on the upper movable plate 3-13 through a mold core fixing plate 3-15.

The upper die mechanism further comprises a die splitting mechanism, the die splitting mechanism comprises a third driving mechanism 3-16 and a pressing block 3-17, the third driving mechanism 3-16 is an air cylinder or a hydraulic cylinder, the third driving mechanism 3-16 is fixedly arranged on the upper die plate 3-13, and the third driving mechanism 3-16 drives the pressing block 3-17 to do reciprocating linear motion along the height direction of the cavity 3-6-1.

The upper drainage mechanism comprises an upper mould drainage plate 3-18 and an upper mould filtering component, the upper mould drainage plate 3-18 is fixedly arranged on the lower surface of the mould core 3-1, an upper drainage channel is arranged on the upper mould drainage plate 3-18, as shown in fig. 3, an upper drainage pipeline 3-1-1 is arranged on the mold core 3-1, the upper water discharge pipeline 3-1-1 is communicated with an upper water discharge channel, the upper water discharge pipeline 3-1-1 is communicated with a vacuum pump 3-20 through an upper mould hose 3-19, the upper die hoses 3-19 are communicated with upper die filters 3-21, the upper die hoses 3-19 between the upper die filters 3-21 and the vacuum pumps 3-20 are communicated with upper die control valves 3-22, and the upper die filter assemblies are fixedly arranged on the lower surfaces of the upper die drainage plates 3-18.

The lower drainage mechanism comprises a lower drainage plate 3-23 and a lower mould filtering assembly, the lower drainage plate 3-23 is fixedly arranged right below an upper mould cavity 3-6-1 of a moving platform 3-4, a lower drainage channel is arranged on the lower drainage plate 3-23, a lower drainage pipeline 3-4-1 is arranged on the moving platform 3-4, the lower drainage pipeline 3-4-1 is communicated with the lower drainage channel, the lower drainage pipeline 3-4-1 is communicated with a water storage tank 3-25 through a lower mould hose 3-24, a lower mould filter 3-26 is communicated on the lower mould hose 3-24, a lower mould control valve 3-27 is communicated on the lower mould hose 3-24 between the lower mould filter 3-26 and the water storage tank 3-25, the lower die filtering component is fixedly arranged on the upper surfaces of the lower die drainage plates 3-23.

As the concrete mixed wet material in the cavity 3-6-1 of the forming device is subjected to the pressure from the mold core 3-1, free moisture in the concrete mixed wet material is extruded quickly and needs effective drainage, otherwise physical properties such as initial setting forming efficiency, compactness, compressive strength and the like can be influenced, in order to solve the problems, the upper drainage plate and the lower drainage plate respectively comprise plate bodies 3-28, and every 1000cm of the plate bodies 3-28 is²30 through holes with the aperture phi of 5mm are uniformly arranged in the area of the plate body3-28-2, as shown in figure 4, the depth of the drain groove 3-28-2 is 5mm, the drain groove 3-28-2 is communicated with each drain through hole 3-28-1, the drain through hole 3-28-1 on the upper die drain board 3-18 and the drain groove 3-28-2 form an upper drain channel, and the drain through hole 3-28-1 on the lower die drain board 3-23 and the drain groove 3-28-2 form an upper drain channel.

In the forming process, in order to prevent raw materials such as yellow sand, cement and the like from entering a drainage system, blocking a drainage pipeline, damaging components such as a control valve and the like, the upper die filtering assembly and the lower die filtering assembly respectively comprise mounting frames 3-29, the mounting frames 3-29 are sleeved outside the plate bodies 3-28, one surface of each mounting frame 3-29 is fixedly provided with a nylon filter cloth 3-30, and stainless steel wire meshes 3-31 are fixedly arranged outside the nylon filter cloth 3-30; the nylon filter cloth 3-30 has good air permeability and water permeability, but is not permeable to silt, high in strength, good in wear resistance, easy to peel dirt and convenient to clean, the air permeability of the nylon filter cloth 3-30 selected by the invention is 36.1L/square meter.s, and the filtering precision is less than or equal to 0.15 mm. The stainless steel wire meshes 3-31 are 310S stainless steel wire meshes 3-31 with 12 meshes and the aperture of about 2mm, the nylon filter cloth 3-30 can be bound on the steel wire meshes, the nylon filter cloth 3-30 is fixed, and the whole filter screen can be flatly paved and adsorbed on the drainage plate through the installation frame 3-29 on the drainage plate.

Under the action of pressure, free water in the concrete mixed wet material can flow into the drainage groove 3-28-2 through the drainage through hole 3-28-1 and then enters the lower drainage pipeline 3-4-1 and the upper drainage pipeline 3-1-1 to be discharged. When the water draining plate is installed, the water draining plate cannot be reversely installed, one surface provided with the water draining groove 3-28-2 cannot be contacted with the filtering component, if the water draining groove 3-28-2 is attached to the nylon filter cloth 3-30 and the stainless steel wire net 3-31, the nylon filter cloth 3-30, the stainless steel wire net 3-31 and the concrete mixed wet material have certain plasticity, and under the action of pressure, the nylon filter cloth 3-30 and the stainless steel wire net 3-31 are embedded into the water draining groove 3-28-2, so that the water draining channel is blocked, and water draining is not smooth.

The working process of the invention is as follows:

after the concrete mixed wet material is quantitatively placed into a cavity 3-6-1 of a molding device, a motor 3-5-1 rotates reversely to drive a first connecting rod 3-5-2 to rotate reversely, the first connecting rod 3-5-2 pushes a second connecting rod 3-5-3 to reset, the second connecting rod 3-5-3 pushes a moving platform 3-4 to move reversely to the position right below a mold core 3-1, the motor 3-5-1 stops, and the moving platform 3-4 is static; the hydraulic machine 3-14 is started to push the upper mold plate 3-13 to move towards the moving platform 3-4, the upper mold plate 3-13 drives the mold core 3-1 to move towards the mold cavity 3-6-1, the mold core 3-1 and the mold cavity 3-6-1 are matched to form the concrete mold cavity 3-6-1, the mold matching pressure is 10MPa-16MPa, the vacuum pump 3-20 is started to carry out negative pressure vacuumizing on the concrete mold cavity 3-6-1, the vacuumizing degree is 0.8MPa-1.0MPa, the time for mold matching, pressure maintaining and vacuumizing is not more than 5min, the mold core 3-1 applies pressure on the upper surface of the concrete mixed wet material, one part of extruded free water moves to the lower surface of the concrete mixed wet material, and the other part of free water floats from the upper surface of the concrete mixed wet material, free water moving to the lower surface of the concrete mixed wet material can be discharged through a lower die filtering component by utilizing the potential difference of water, a lower die drainage plate 3-23, a lower drainage pipeline 3-4-1 and a lower die filter 3-26 and then enters a water storage tank 3-25; free water floats from the upper surface of the concrete mixed wet material, is discharged through an upper die filtering component under the action of negative pressure of a vacuum pump 3-20 through an upper die drainage plate 3-18, an upper drainage pipeline 3-1-1 and an upper die filter 3-21, and enters a water storage tank 3-25, and the stored water can be recycled as water for concrete stirring; under the dual actions of extrusion and vacuum-pumping negative pressure of the mould, quickly losing more than 90% of moisture in the concrete cavity 3-6-1 in a short time, finally entering the water storage tank 3-25, and quickly performing initial setting forming in the concrete cavity 3-6-1 to obtain a semi-finished product of the curbstone;

after initial setting forming, opening the die of the forming equipment, when the die is opened, driving the pressing blocks 3-17 to move towards the moving platform 3-4 by the third driving mechanisms 3-16 in the die separating mechanism, and stopping the third driving mechanisms 3-16 after the pressing blocks 3-17 are contacted with the moving platform 3-4; the hydraulic machine 3-14 works to drive the cavity 3-6-1 to move out of the mold core 3-1 upwards and then stops working; the second driving mechanism 3-7 works to push the middle plate 3-6 to move towards the mold core 3-1 along the guide column 3-8, and the second driving mechanism 3-7 stops working after the middle plate 3-6 is separated from the moving platform 3-4 by a certain distance; the external conveying plate moves towards the cavity 3-6-1, a rotating wheel at the bottom of the external conveying plate is arranged in a tangent mode with the upper surface of the moving platform 3-4, the rotating wheel can move on the moving platform 3-4 and simultaneously supports the external conveying plate, and the external conveying plate stops after moving to the position right below the cavity 3-6-1; the second driving mechanism 3-7 drives the core 3-1 on the middle plate 3-6 to move again, the third driving mechanism 3-16 resets the pressing block 3-17, the core 3-1 is inserted into the cavity 3-6-1 again in the upward movement process of the middle plate 3-6, the semi-finished product of the curbstone in the cavity 3-6-1 is pushed out of the cavity 3-6-1, the semi-finished product of the curbstone falls on the external conveying plate, the external conveying plate cannot shake under the support of the rotating wheel, and the semi-finished curbstone can be supported and conveyed more stably; after the semi-finished curbstone is separated from the cavity 3-6-1, the second driving mechanism 3-7 stops working, the external conveying plate outputs the semi-finished curbstone, the second driving mechanism 3-7 resets after the semi-finished curbstone is output, and the middle plate 3-6 is attached to the moving platform 3-4; and rotating the motor forwards and repeating the steps.

In this embodiment, the following materials are used as an example of a road edge stone with a specification of 100 × 25 × 12 cm: the weight ratio of cement, yellow sand, gypsum and water is 1: G: S: W: 1:1.83:3.33:0.60, and the cement is P.O.42.5 grade cement. The production process parameters are shown in table 1.

The initial setting time and the maintenance period of the curbstone affect the production efficiency. When the concrete is initially solidified and formed into a solid state in the cavity 3-6-1, the mold can be removed and the block can be conveyed, so that the forming time is reduced and the production efficiency is improved. As shown in Table 1, the initial setting time of the invention is 2min, which is equivalent to the dry process device, while the initial setting time of the original wet process requires 24 hours, and the production efficiency is remarkably improved.

Compared with the road edge stone manufactured by a dry process and the road edge stone manufactured by a wet process, the relationship between the compressive strength and the curing period of the road edge stone is shown in figure 7, the curing period of a new device product is equivalent to that of the dry process, the compressive strength reaches about 85 percent of a finished product after 3 days, and the compressive strength reaches more than 90 percent of the finished product after 7 days; the original wet process device can reach about 50 percent of the finished product in 3 days and about 70 percent of the finished product in 7 days. Compared with the original wet process, the novel device has the advantages that the compressive strength of the product produced by the novel device reaches over 90 percent of that of the finished product in 7 days, normal turnover and transportation can be realized, the production period is shortened, the field required by production is reduced, and the cost is reduced.

The density of the road edge stone can reach 2300/kg.m-3, the compressive strength can reach 55MPa, and compared with the road edge stone manufactured by a dry process and the road edge stone manufactured by a wet process, the process product is greatly improved. The appearance quality is obviously improved; as shown in Table 2, the indexes of the road edge stone inspection items processed by the processes are compared

The forming device of the cement-based stone-like material type curbstone has the advantages that the forming time of the curbstone is greatly shortened, the production efficiency is obviously improved, more than 90 percent of water in the concrete mixed wet material and gas in the mixed wet material can be quickly discharged within extremely short time of 2-3min by combining the new formula of the curbstone under the double actions of the 10MPa pressure value of die assembly and the vacuum pumping value of 1.0MPa, the water discharging and gas discharging efficiency is extremely high, the speed of condensing the concrete mixed wet material into a solid state is greatly improved, the positive strong pressure and the bottom negative pressure are combined under the double actions of not adopting stone particles, adding gypsum and adopting fine sand, the wet material is fully condensed and compacted during initial condensation, no gap exists in the inside after forming, the compactness of the curbstone is obviously improved, the structural strength is obviously improved, the pressure value of 0.8MPa-1.0MPa vacuum pumping value of die assembly is matched in a die cavity of 3-6-1 of 10MPa-16MPa, realize the concrete mixes the wet material and effectively condenses fast, both satisfied the curbstone initial set shaping in the very short time, have high closely knit degree, intensity, avoid the pressure value again, the too big curbstone that causes of evacuation value is compressed by the transition, the dehydration is too much, avoid the initial set failure, the appearance is cracked, can't demold or be difficult to the in-line, the effectual curbstone after having guaranteed the initial set reaches drawing of patterns intensity, thirdly, the surface smoothness of fashioned curbstone, the finish quality is good, the appearance quality is high, the shaping is fast, very big improvement production efficiency, because dual function, closely knit degree is high, the water loss rate is high, the curbstone semi-manufactured goods after the drawing of patterns can reach pile up neatly and carry intensity, the curbstone of this intensity can bear the pressure value that is not less than the semi-manufactured goods self weight of initial set shaping curbstone, under this pressure value effect, the curbstone semi-manufactured goods that initial set shaping can, The dry cracking is convenient for the subsequent stacking operation, the outstanding performance of the curbstone prepared by the preparation process can be shown from the position, the water consumption is high in the formula of the old method, the water reducing agent is required to be added to disperse cement particles, and the workability is improved, so that the compactness and hardness of the cement-based material are improved, the preparation method adopts fine yellow sand, no auxiliary agent is used, no stone particles are used, and the specific gravity of the cement is reduced, so that the water consumption is greatly reduced, the compactness and surface smoothness of the curbstone can be improved by using the fine yellow sand, the old method only can use medium sand, because the water consumption is higher when the fine sand is used in the old method, the strength of the concrete is reduced, the cost is improved when the same strength is ensured, the cement consumption is increased, the cement content is greatly reduced compared with the old method, the cement consumption is saved, the problem that the concrete is greatly shrunk and is easy to crack when the concrete is greatly reduced, and the production cost of the cur, the curb stone of higher quality is obtained simultaneously, can the press forming, drawing of patterns, shift out the pile up neatly in short 5min time curb stone, and production is high-efficient, still very big reduction former's power energy consumption, further reduction manufacturing cost, in addition, mould repeatedly usable, can carry out the suppression production of feeding again behind the curb stone drawing of patterns, mould reuse, input on the mould is low, the output is high, very big reduction in production cost.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a forming device of imitative stone material type curb of cement base which characterized in that: the method comprises the following steps:

an upper die mechanism: the upper die mechanism comprises a core (3-1);

moving the lower die mechanism: the movable lower die mechanism comprises a die cavity (3-6-1), and the die cavity (3-6-1) and the core (3-1) are closed to form a concrete die cavity (3-6-1);

the upper drainage mechanism is fixedly arranged on the upper die mechanism and is communicated with the concrete cavity (3-6-1) through the mold core (3-1);

and the lower drainage mechanism is fixedly arranged on the movable lower die mechanism and is communicated with the concrete cavity (3-6-1).

2. The apparatus for forming cement-based stone-like type road edge stones according to claim 1, wherein: the movable lower die mechanism comprises a lower die base (3-2), a movable platform (3-4) is arranged on the lower die base (3-2) in a sliding mode through a guide rail (3-3), the movable platform (3-4) is driven by a first driving mechanism (3-5) to do reciprocating linear motion along the guide rail (3-3), the core (3-1) is just opposite to or far away from the movable platform (3-4), an intermediate plate (3-6) is arranged on the movable platform (3-4) in a lifting mode, the cavity (3-6-1) is arranged on the intermediate plate (3-6), and the intermediate plate (3-6) is driven by a second driving mechanism (3-7) to lift along the height direction of the cavity (3-6-1).

3. The apparatus for forming cement-based stone-like type road edge stones according to claim 2, wherein: be provided with direction stop gear between moving platform (3-4) and intermediate lamella (3-6), direction stop gear includes guide post (3-8) and uide bushing (3-9), uide bushing (3-9) fixed mounting is on moving platform (3-4), guide post (3-8) fixed mounting is on intermediate lamella (3-6), guide post (3-8) slide to insert and establish in uide bushing (3-9), limiting plate (3-10) that restraint guide post (3-8) deviate from in uide bushing (3-9) are installed to guide post (3-8) lower extreme fixed mounting.

4. The apparatus for forming cement-based stone-like type road edge stones according to claim 2, wherein: the upper die mechanism comprises an upper die holder (3-11), the upper die holder (3-11) is fixedly arranged above the lower die holder (3-2) through a guide post (3-12), an upper die moving plate (3-13) is slidably arranged on the guide post (3-12), a hydraulic machine (3-14) is fixedly arranged on the upper die base (3-11), the extending end of the hydraulic machine (3-14) passes through the upper die holder (3-11) and then is fixedly connected with the upper die moving plate (3-13), the hydraulic machine (3-14) drives the upper die plate (3-13) to do reciprocating linear motion along the height direction of the die cavity (3-6-1), the mold core (3-1) is fixedly arranged on the upper mold plate (3-13) through a mold core fixing plate (3-15).

5. The apparatus for forming cement-based stone-like type road edge stones according to claim 4, wherein: the mould separating mechanism comprises a third driving mechanism (3-16) and a pressing block (3-17), the third driving mechanism (3-16) is fixedly mounted on the upper mould moving plate (3-13), and the third driving mechanism (3-16) drives the pressing block (3-17) to do reciprocating linear motion along the height direction of the cavity (3-6-1).

6. The apparatus for forming cement-based stone-like type road edge stones according to claim 2, wherein: the upper drainage mechanism comprises an upper mould drainage plate (3-18) and an upper mould filtering component, the upper mould drainage plate (3-18) is fixedly arranged on the lower surface of the core (3-1), an upper drainage channel is arranged on the upper mould drainage plate (3-18), an upper drainage pipeline (3-1-1) is arranged on the core (3-1), the upper drainage pipeline (3-1-1) is communicated with the upper drainage channel, the upper drainage pipeline (3-1-1) is communicated with a vacuum pump (3-20) through an upper mould hose (3-19), the upper mould hose (3-19) is communicated with an upper mould filter (3-21), an upper mould control valve (3-22) is communicated with the upper mould hose (3-19) between the upper mould filter (3-21) and the vacuum pump (3-20), the upper die filtering component is fixedly arranged on the lower surface of the upper die drainage plate (3-18).

7. The apparatus for forming cement-based stone-like type road edge stones according to claim 3, wherein: the lower drainage mechanism comprises a lower drainage plate (3-23) and a lower filtering assembly, the lower drainage plate (3-23) is fixedly installed right below a cavity (3-6-1) on a movable platform (3-4), a lower drainage channel is formed in the lower drainage plate (3-23), a lower drainage pipeline (3-4-1) is formed in the movable platform (3-4), the lower drainage pipeline (3-4-1) is communicated with the lower drainage channel, the lower drainage pipeline (3-4-1) is communicated with a water storage tank (3-25) through a lower mould hose (3-24), a lower mould filter (3-26) is communicated with the lower mould hose (3-24), and a lower mould control valve (3) is communicated with the lower mould hose (3-24) between the lower mould filter (3-26) and the water storage tank (3-25) -27) fixedly mounted on the upper surface of the lower die drain plate (3-23).

8. The cement-based stone-like type road edge stone molding apparatus as claimed in claim 6 or 7, wherein: the upper die drainage plate (3-18) and the lower die drainage plate (3-23) respectively comprise a plate body (3-28), drainage through holes (3-28-1) are uniformly formed in the plate body (3-28), a drainage groove (3-28-2) is formed in one surface of the plate body (3-28), the drainage groove (3-28-2) is communicated with each drainage through hole (3-28-1), the drainage through holes (3-28-1) in the upper die drainage plate (3-18) and the drainage grooves (3-28-2) form an upper drainage channel, and the drainage through holes (3-28-1) in the lower die drainage plate (3-23) and the drainage grooves (3-28-2) form an upper drainage channel.

9. The apparatus for forming cement-based stone-like type road edge stones according to claim 8, wherein: the upper die filtering component and the lower die filtering component both comprise mounting frames (3-29), the mounting frames (3-29) are sleeved outside the plate bodies (3-28), nylon filtering cloth (3-30) is fixedly mounted on one side of each mounting frame (3-29), the nylon filtering cloth (3-30) is attached to the surface of each plate body (3-28), and stainless steel wire meshes (3-31) are fixedly mounted outside the nylon filtering cloth (3-30).

10. The apparatus for forming cement-based stone-like type road edge stones according to claim 2, wherein: the first driving mechanism (3-5) comprises a motor (3-5-1), a first connecting rod (3-5-2) and a second connecting rod (3-5-3), the motor (3-5-1) is fixedly installed on the lower die base (3-2), one end of the first connecting rod (3-5-2) is fixedly installed at the output end of the motor (3-5-1), the other end of the first connecting rod is hinged with one end of the second connecting rod (3-5-3), and the other end of the second connecting rod (3-5-3) is hinged with the movable platform (3-4).