A die pressing system for a fully automatic static brick pressing machine and an application method thereof

Abstract

The present invention discloses a die pressing system and application method for a fully automatic static brick pressing machine, including a static die assembly, a cleaning and sand removal assembly and an energy-saving high-pressure pump assembly; the static die assembly includes a die base, a pressure cover and a lifting rod; a brick die groove is provided on the die base; the pressure cover can be lifted and lowered and distributed directly above the die base, and can be inserted and moved in a corresponding manner to match the brick die groove; a mesh pressure plate is provided on the inner wall of the die base and the bottom surface of the pressure cover; the cleaning and sand removal assembly includes a water collecting box; a water outlet is provided at the lower part of the water collecting box and is connected to the lower connecting port through a through pipe; an air return port is provided at the upper part of the water collecting box and is connected to the air inlet of the energy-saving high-pressure pump assembly through a pressure-resistant air pipe; the air outlet of the energy-saving high-pressure pump assembly is connected to the upper air vent through a pressure-resistant hose. The present invention is adopted to achieve the advantages of high efficiency in brick making, good quality and good use effect.

Description

Technical Field

[0001] The invention relates to the technical field of brick machines, and in particular to a die pressing system for a full-automatic static brick pressing machine and an application method thereof. Background Art

[0002] There are many kinds of brick machines at present, and in the preparation of some special pressed bricks (such as permeable bricks), most of them are pressed after selecting certain raw materials. However, the raw materials required for this type of bricks are traditionally more demanding and more expensive. It is difficult to prepare finished products with permeability standards using cheaper raw materials and traditional processes. Therefore, many people in the permeable brick industry reduce the quality of raw materials in order to improve their competitiveness. As a result, many current permeable bricks actually have a low permeable pore system (porosity), and therefore have poor permeability.

[0003] The disclosure of the above background technology content is only used to assist in understanding the concept and technical solution of the present invention. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above content has been disclosed on the filing date of this patent application, the above background technology should not be used to evaluate the novelty and creativity of the present application. Summary of the invention

[0004] In view of the above technical problems, the present invention provides a die pressing system and an application method for a fully automatic static brick pressing machine for preparing a permeable brick base blank with a high porosity.

[0005] To achieve the above object, the present invention adopts the following technical solution:

[0006] A die pressing system for a fully automatic static brick pressing machine comprises a static die assembly, a cleaning and sand removal assembly and an energy-saving high-pressure pump assembly; the static die assembly comprises a die base, a pressure cover and a lifting rod; a brick die groove is provided on the die base; the pressure cover can be lifted and lowered and distributed just above the die base, and can be inserted and moved in a corresponding manner to match the brick die groove; a mesh pressing plate is provided on the inner wall of the die base and the bottom surface of the pressure cover; an air duct is provided inside the die base and the pressure cover, and a lower connecting port and an upper air vent are provided respectively; a lifting rod plug hole is also provided on the bottom surface of the die base, and the lifting rod can be retractably inserted into the lifting rod plug hole for distribution; the cleaning and sand removal assembly comprises a water collecting tank; a water outlet is provided at the lower part of the water collecting tank and is connected to the lower connecting port through a through pipe; an air return port is provided at the upper part of the water collecting tank, and is connected to the air inlet of the energy-saving high-pressure pump assembly through a pressure-resistant air pipe; the air outlet of the energy-saving high-pressure pump assembly is connected to the upper air vent through a pressure-resistant hose.

[0007] Furthermore, a spring pressure valve is disposed at the air return port.

[0008] Furthermore, the energy-saving high-pressure pump assembly includes a high-pressure air pump and a mixed air intake chamber, the mixed air intake chamber is provided with an air inlet, a high-pressure air pump air intake connection port and the air inlet; a one-way air valve is also provided at the air inlet.

[0009] Furthermore, a first electrically-controlled valve is provided at the upper air vent, an air leakage hole is provided on the gland, and a second electrically-controlled valve is provided at the air leakage hole.

[0010] Furthermore, the gland and the lifting rod are each driven by a hydraulic cylinder to achieve lifting.

[0011] Furthermore, the lower part of the water collecting tank is also connected to a drainage trough, and the upper part of the drainage trough is communicated with the water outlet of the water collecting tank and the through pipe; the lower part of the drainage trough is also provided with a drainage port, and a valve is provided at the drainage port.

[0012] Furthermore, the mesh pressure plate is composed of a dense mesh layer, a load-bearing mesh layer and a plurality of load-bearing support rods; the dense mesh layer is composed of a plurality of layers of dense mesh superimposed and combined; the dense mesh is composed of a combination of pressure-bearing corrugated strips and locking strips; the pressure-bearing corrugated strips are alternately provided with pressure blocks with a boat-shaped curved surface structure, which together with the connecting strip segments connecting the pressure blocks form a corrugated structure as a whole, the pressure-bearing corrugated strips are parallel to each other and staggered, and the outer edge of the pressure block on one pressure-bearing corrugated strip is longitudinally aligned with the outer edge of the connecting strip segment on another adjacent pressure-bearing corrugated strip; the locking strip is interlaced with the pressure-bearing corrugated strip in a "cross" shape; the load-bearing support rods pass through the dense mesh layer horizontally and are tightly combined with each other by extrusion; the load-bearing mesh layer is distributed on the rear side of the dense mesh layer to support the dense mesh layer.

[0013] Furthermore, a sealing rubber ring is provided on the contact surface of the mold base and the pressure cover.

[0014] The application method of using a brick machine equipped with the above-mentioned full-automatic static brick machine die pressing system to make bricks comprises the following steps:

[0015] (1) Screening: Screen the stone or slag raw materials and take the screened materials below the 2-mesh sieve and above the 6-mesh sieve;

[0016] (2) Mixing: The sieved material obtained in step (1) is stirred and mixed with water and cement in a certain proportion to obtain a base embryo raw material;

[0017] (3) Pre-drying: pre-drying the base embryo raw material for 1 to 4 hours;

[0018] (4) The brick making machine and the pressing mold system are started, and the pre-dried base embryo raw material is sent into the hopper of the brick making machine through the conveyor belt. The material distribution box of the brick making machine moves forward, fills the mold with the base embryo raw material and then returns. The pressure cover is pressed down and the first electric control valve is opened. Then the pressure cover presses the base embryo raw material, and the compressed air flows from the upper part of the base embryo raw material to the side and bottom. When the air pressure in the water collecting tank exceeds the tolerance value of the spring pressure valve,

[0019] Then the spring pressure valve opens and enters the mixed air intake chamber to realize air circulation;

[0020] (5) After the base embryo raw material is pressed into a base brick embryo, the pressure cover rises, and at the same time, the first electric control valve is closed, and the lifting rod rises to push the base brick embryo out of the brick mold groove; then the material distribution box moves forward again and pushes the base brick embryo away, and then the base embryo raw material fills the mold and returns, and the cycle continues;

[0021] (6) Cleaning: When cleaning is required, first add cleaning liquid to the brick mold groove, control the pressure cover to descend and insert into the brick mold groove, and then control the first electrically controlled valve to open, so that the cleaning liquid in the lower part of the brick mold groove is pressed into the water collecting tank, and the air pressure in the water collecting tank rises; then close the first electrically controlled valve and open the second electrically controlled valve. At this time, the upper part of the water collecting tank is under positive pressure, and the cleaning liquid is pressed back into the brick mold groove and the mesh pressure plate is flushed; then close the second electrically controlled valve and open the first electrically controlled valve. Repeat this cycle for multiple times to achieve flushing of the mesh pressure plate with the cleaning liquid; finally, discharge the waste residue and the cleaning liquid together through the drain trough.

[0022] Furthermore, the pre-drying time in step (3) is 1.5 to 2.5 hours.

[0023] The beneficial effects of the present invention compared with the prior art are as follows:

[0024] (1) The pressure-bearing corrugated strips of the mesh pressure plate are alternately provided with pressure blocks with a boat-shaped curved surface structure, which together with the connecting strip segments connecting the pressure blocks form a corrugated structure as a whole. The pressure-bearing corrugated strips are parallel to each other and staggered, and the outer edge of the pressure block on one of the pressure-bearing corrugated strips is longitudinally aligned with the outer edge of the connecting strip segment on another adjacent pressure-bearing corrugated strip; the locking strip is interwoven with the pressure-bearing corrugated strip in a "cross" shape; by adopting the above structure, the vents formed by the locking strip and the pressure-bearing corrugated strip can be obliquely distributed, which is beneficial to significantly reduce the blockage of the vents by the base embryo material during the pressing of the base embryo material. The pressure blocks are arranged in a boat-shaped curved surface structure, which can effectively decompose the longitudinal extrusion force during the pressing process, thereby also helping to reduce blockage.

[0025] (2) The static pressure mold assembly can realize the hole expansion treatment through high-pressure air during the whole process of pressing the base blank raw material. Compared with the traditional device, it can achieve a higher hole formation rate and a larger hole diameter. In addition, based on the airflow-promoted hole formation, the holes formed are irregular holes, ensuring that the base brick blank has the required strength.

[0026] (3) The die pressing system can realize the recycling of high-pressure gas and reduce production costs.

[0027] (4) By using the cleaning and sand removal component, the mesh pressure plate can be efficiently and quickly flushed by simply using reverse air pressure, and the cleaning waste can be quickly discharged by properly setting up the discharge trough.

[0028] (5) The brick making method can effectively reduce the blockage of the mesh pressure plate, while ensuring that the base brick embryo has the required strength and improving the water permeability of the base brick embryo. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the static pressure mold assembly of the present invention;

[0030] Figure 2 It is a schematic diagram of the partial structure of the mesh pressing plate of the present invention;

[0031] Figure 3 It is a structural schematic diagram of a die pressing system for a fully automatic static brick pressing machine of the present invention. DETAILED DESCRIPTION

[0032] like Figures 1 to 3 As shown, a die pressing system for a fully automatic static brick pressing machine includes a static pressing die assembly, a cleaning and sand removal assembly, and an energy-saving high-pressure pump assembly; the static pressing die assembly includes a die base 13, a pressure cover 9, and a lifting rod 17; the die base 13 is distributed on a support table 16, and a brick mold groove 22 is opened on the die base 13, and of course the number of the brick mold grooves 22 can be one or more; the contact surfaces of the die base 13 and the pressure cover 9 are each provided with a sealing rubber ring 12, 4. The pressure cover 9 is driven by a hydraulic cylinder 1 to be lifted and lowered above the die base, and can be inserted into a movable distribution corresponding to the brick mold groove to match the brick mold groove for pressing brick embryos; the inner wall of the die base 13 and the bottom surface of the pressure cover are each provided with a mesh pressing plate; the mesh pressing plate is composed of a dense mesh plate layer (such as the attached Figure 1The dense mesh layer 21, 7) and the load-bearing mesh layer 6, 15 and a plurality of load-bearing support rods 8, 14 respectively distributed in the mold base 13 and the pressure cover are composed; the dense mesh layer is composed of a plurality of layers of dense mesh superimposed and combined; the dense mesh is composed of a combination of pressure-bearing corrugated strips 24 and locking strips 25; the pressure-bearing corrugated strips 24 are alternately provided with pressure blocks 24-1 with a boat-shaped curved surface structure, which together with the connecting strip segments 24-2 connecting the pressure blocks form a corrugated structure as a whole, the pressure-bearing corrugated strips are parallel to each other and staggered, and the outer edge of the pressure block on one of the pressure-bearing corrugated strips is longitudinally aligned with the outer edge of the connecting strip segment on the other adjacent pressure-bearing corrugated strip; the locking strip is interlaced with the pressure-bearing corrugated strip in a "cross" shape, such as Figure 2 As shown, the locking strip is also correspondingly corrugated, and the surface where the vent 25-1 generated by the interweaving is located is inclined, which is beneficial to reduce the blockage of the vent 25-1 more effectively when the base embryo raw material is pressed under positive pressure compared with the horizontally distributed vent; the load-bearing support rod passes through the dense mesh layer horizontally, and is tightly combined with each other through extrusion to provide a supporting force; the load-bearing mesh layer has a larger aperture, and a general load-bearing mesh structure can be used, which is distributed on the rear side of the dense mesh layer to support the dense mesh layer. The mold base and the pressure cover are each provided with an air vent inside to realize the flow of air or cleaning liquid, and are respectively provided with a lower connecting port 20 and an upper vent 11; the upper vent 11 is also provided with a first electrically controlled valve 10, and the pressure cover is also provided with an air vent 3, and the air vent 3 is also provided with a second electrically controlled valve 2. The bottom surface of the mold base is also provided with a lifting rod socket 18, and of course, the support platform 16 is also provided with a corresponding lifting through hole; the lifting rod 17 is driven by a hydraulic cylinder 23 and can be retracted and inserted into the lifting rod socket to realize the ejection of the pressed brick embryo; the cleaning and sand removal assembly includes a water collecting tank 30; the lower part of the water collecting tank 30 is provided with a water outlet 29 and is connected to the lower connecting port 20 through a through pipe 26; the energy-saving high-pressure pump assembly includes a high-pressure air pump 36 and a mixing air intake chamber 39, and the mixing air intake chamber 39 is provided with an air inlet 33, a high-pressure air pump air intake connection port 35 and an air inlet 40; a one-way air valve 34 is also provided at the air inlet 33. The upper part of the water collecting box is provided with a return air port 32, where a spring pressure valve 31 is distributed, and the air pressure inside the water collecting box is controlled by the return air port, and the return air port is connected to the air inlet 40 through a pressure-resistant air pipe; the air outlet 37 of the energy-saving high-pressure pump assembly is connected to the upper vent 11 through a pressure-resistant hose 38. The lower part of the water collecting box is also connected to a drainage trough 27, the upper part of which is connected to the water outlet of the water collecting box and the through pipe 26; the lower part of the drainage trough is also provided with a drainage port, where a valve 28 is provided.

[0033] The application method of brick making using a brick machine equipped with a die pressing system for a fully automatic static brick machine as described above comprises the following steps:

[0034] (1) Screening: Screen the stone or slag raw materials, and select the sieve material with a mesh size below 2 and above 6. The minimum particle size of the raw materials after passing through the mesh size will be larger than the diameter of the vent 25-1, thereby preventing blockage;

[0035] (2) Mixing: The sieved material obtained in step (1) is stirred and mixed with water and cement in a certain proportion to obtain a base embryo raw material;

[0036] (3) Pre-drying: pre-drying the base embryo raw material for 1 to 4 hours or 15 to 25 hours;

[0037] (4) starting the brick machine and the pressing mold system, feeding the pre-dried base raw material into the hopper of the brick machine through the conveyor belt, the distribution box of the brick machine moves forward, fills the mold with the base raw material and returns, the pressure cover is pressed down and the first electric control valve is opened, then the pressure cover presses the base raw material, and at the same time, the compressed air flows from the upper part of the base raw material to the side and bottom, and when the air pressure in the water collecting tank exceeds the tolerance value of the spring pressure valve, the spring pressure valve opens and enters the mixed air intake chamber to realize air circulation;

[0038] (5) After the base embryo raw material is pressed into a base brick embryo, the pressure cover rises, and at the same time, the first electric control valve is closed, and the lifting rod rises to push the base brick embryo out of the brick mold groove; then the material distribution box moves forward again and pushes the base brick embryo away, and then the base embryo raw material fills the mold and returns, and the cycle continues;

[0039] (6) Cleaning: When cleaning is required, first add cleaning liquid to the brick mold groove, control the pressure cover to descend and insert into the brick mold groove, and then control the opening of the first electrically controlled valve, so that the cleaning liquid in the lower part of the brick mold groove is pressed into the water collecting tank, and the air pressure in the water collecting tank rises; then close the first electrically controlled valve and open the second electrically controlled valve, at this time, the upper part of the water collecting tank is under positive pressure, and the cleaning liquid is pressed back into the brick mold groove and the mesh pressure plate is flushed; then close the second electrically controlled valve and open the first electrically controlled valve, and repeat this cycle for multiple times to flush the mesh pressure plate with the cleaning liquid; of course, after the bottom of the brick mold groove is cleaned during cleaning, it can also be placed at the bottom of the brick mold groove by a corresponding gravity stopper, so that the cleaning liquid can be sprayed out from the side of the brick mold groove, and finally the waste residue and the cleaning liquid are discharged together through the discharge trough.

[0040] After the base brick blank with good permeability is prepared, the subsequent process can be started to cover the top of the base brick blank with the top layer material to complete the preparation of the highly permeable brick.

Claims

1. A die pressing system for a fully automatic static brick pressing machine, characterized in that: It includes a static pressure mold assembly, a cleaning and sand removal assembly and an energy-saving high-pressure pump assembly; the static pressure mold assembly includes a mold base, a pressure cover and a lifting rod; a brick mold groove is provided on the mold base; the pressure cover can be lifted and lowered and distributed just above the mold base, and can be inserted and distributed in a corresponding manner to match the brick mold groove; a mesh pressure plate is provided on the inner wall of the mold base and the bottom surface of the pressure cover; an air duct is provided inside the mold base and the pressure cover, and a lower connecting port and an upper air vent are provided respectively; a lifting rod plug hole is also provided on the bottom surface of the mold base, and the lifting rod can be retractably inserted into the lifting rod plug hole for distribution; the cleaning and sand removal assembly includes a water collecting tank; a water outlet is provided at the lower part of the water collecting tank and is connected to the lower connecting port through a through pipe; an air return port is provided at the upper part of the water collecting tank, and is connected to the air inlet of the energy-saving high-pressure pump assembly through a pressure-resistant air pipe; the air outlet of the energy-saving high-pressure pump assembly is connected to the upper air vent through a pressure-resistant hose; The mesh pressure plate is composed of a dense mesh layer, a load-bearing mesh layer and a plurality of load-bearing support rods; the dense mesh layer is composed of a plurality of layers of dense mesh superimposed and combined; the dense mesh is composed of a combination of pressure-bearing corrugated strips and locking strips; the pressure-bearing corrugated strips are alternately provided with pressure blocks with a boat-shaped curved surface structure, which together with the connecting strip segments connecting the pressure blocks form a corrugated structure as a whole, the pressure-bearing corrugated strips are parallel to each other and staggered, and the outer edge of the pressure block on one of the pressure-bearing corrugated strips is longitudinally aligned with the outer edge of the connecting strip segment on another adjacent pressure-bearing corrugated strip; the locking strip is interlaced with the pressure-bearing corrugated strip in a "cross" shape; the load-bearing support rods pass through the dense mesh layer horizontally and are tightly combined with each other by extrusion; the load-bearing mesh layer is distributed on the rear side of the dense mesh layer to support the dense mesh layer.

2. The die pressing system for a fully automatic static brick pressing machine according to claim 1 is characterized in that: A spring pressure valve is distributed at the air return port.

3. The die pressing system for a fully automatic static brick pressing machine according to claim 1 is characterized in that: The energy-saving high-pressure pump assembly comprises a high-pressure air pump and a mixed air intake chamber, wherein the mixed air intake chamber is provided with an air inlet, a high-pressure air pump air intake connection port and the air inlet; a one-way air valve is also provided at the air inlet.

4. The die pressing system for a fully automatic static brick pressing machine according to claim 1 is characterized in that: A first electrically controlled valve is also provided at the upper air vent, an air leakage hole is also provided on the gland, and a second electrically controlled valve is also provided at the air leakage hole.

5. The die pressing system for a fully automatic static brick pressing machine according to claim 1 is characterized in that: The pressure cover and the lifting rod are driven by hydraulic cylinders to achieve lifting.

6. The die pressing system for a fully automatic static brick pressing machine according to claim 1 is characterized in that: The lower part of the water collecting box is also connected with a drainage trough, and the upper part of the drainage trough is communicated with the water outlet of the water collecting box and the through pipe; the lower part of the drainage trough is also provided with a drainage port, and a valve is arranged at the drainage port.

7. The die pressing system for a fully automatic static brick pressing machine according to claim 1 is characterized in that: The contact surfaces of the mold base and the pressure cover are each provided with a sealing rubber ring.

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