Concrete brick compression molding device

By optimizing the feeding, pressing and unloading process, combined with real-time thickness monitoring and scraper adjustment, the problems of uneven thickness and module offset in concrete brick production are solved, and efficient and accurate brick production is achieved.

CN120396092AActive Publication Date: 2025-08-01DAMING COUNTY MINGSHAN BUILDING MATERIALS CO LTD
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Patent Information

Application Number
CN202510757555.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-09
Publication Date
2025-08-01
Estimated Expiration
2045-06-09

AI Technical Summary

Technical Problem

In the existing concrete brick pressing molding device, the average thickness of the molded bricks and the deviation displacement of the working module center are inaccurate, resulting in a decrease in production accuracy and effectiveness.

Method used

The storage silo and the conveying mechanism are combined with the weight sensor for quantitative transportation. The vibration fabric module ensures uniform distribution of raw materials. The servo hydraulic module drives the dual-station pressing module to operate alternately. The control system monitors the brick thickness in real time and adjusts the working mode. The scraper adjusts the scraping angle to ensure uniform fabric.

Benefits of technology

It improves the accuracy and effectiveness of concrete brick production, reduces the number of shutdowns and maintenance, and improves production efficiency, density and overall strength of bricks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of concrete brick preparation, in particular to a concrete brick compression molding device which comprises a rack used for forming a main body structure of the device; the feeding unit is used for conveying concrete raw materials to a pressing station and comprises a storage bin, a conveying mechanism and a weight sensor used for detecting feeding of the raw materials. The pressing unit comprises a double-station pressing module, a servo hydraulic module for applying pressing force and a vibration material distribution module; the discharging unit is used for moving the formed concrete bricks out of the pressing station and comprises an ejection mechanism, a conveying belt for conveying the formed concrete bricks to the designated position and an ultrasonic sensor for obtaining the thickness of the formed concrete bricks. And the control system is used for determining the related working mode of the pressing unit according to the average thickness of the formed concrete bricks. According to the invention, the production accuracy and effectiveness of the concrete bricks are improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of concrete brick preparation, and particularly to a concrete brick pressing and forming device. Background Art

[0002] Concrete bricks are standard-sized rectangular blocks used in construction. Concrete bricks are some of the most versatile building products as various appearances can be achieved using them. During the preparation and forming process of concrete bricks, a pressing and forming device is usually adopted to achieve the pressing and forming of concrete.

[0003] Chinese Patent Publication No.: CN114833920A discloses a fully automatic concrete brick pressing and forming device, including a support assembly. The support assembly includes a frame. A pressing assembly is arranged at the top of the frame. A forming assembly is arranged below the pressing assembly. A brick supporting plate and a material storage assembly are arranged below the forming assembly. The material storage assembly includes a positioning plate arranged inside one end of the frame. A feeding assembly includes a third cylinder fixedly connected to the outer wall of the frame. A limiting assembly includes a first support plate fixedly connected to the outer wall of the frame. The present invention can enable the feeding assembly to push the brick supporting plate, so that when the brick supporting plate is fed, the limiting plate can move upward, thereby realizing the position limitation of the brick supporting plate. It can be seen that the following problems exist in the fully automatic concrete brick pressing and forming device: The production accuracy and effectiveness of concrete bricks are reduced due to inaccurate determination of the pressing effectiveness reflected by the average thickness of the formed concrete bricks and the pressing stability reflected by the center offset displacement of the working module. Summary of the Invention

[0004] Therefore, the present invention provides a concrete brick pressing and forming device to overcome the problem in the prior art that the production accuracy and effectiveness of concrete bricks are reduced due to inaccurate determination of the pressing effectiveness reflected by the average thickness of the formed concrete bricks and the pressing stability reflected by the center offset displacement of the working module.

[0005] To achieve the above object, the present invention provides a concrete brick pressing and forming device, including a frame for constituting the main structure of the device;

[0006] A feeding unit, which is arranged on the frame and used to convey concrete raw materials to the pressing station, including a storage bin for storing concrete raw materials, a conveying mechanism arranged at the discharge port of the storage bin for conveying, and a weight sensor arranged at the discharge port of the storage bin for detecting the feeding of raw materials;

[0007] A pressing unit, which is connected to the feeding unit and is used to press concrete raw materials into initial concrete bricks, includes a vibrating feeding module arranged at the end of the conveying mechanism, a double-station pressing module arranged in the vertical direction of the vibrating feeding module, and a servo-hydraulic module connected to the double-station pressing module to apply a pressing force;

[0008] A blanking unit, which is connected to the pressing unit and is used to move the formed concrete bricks out of the pressing station, includes an ejecting mechanism for demolding the formed concrete bricks, a conveyor belt for conveying the formed concrete bricks to a designated position, and an ultrasonic sensor connected to the conveyor belt to obtain the thickness of the formed concrete bricks;

[0009] A control system, which is respectively connected to the feeding unit, the pressing unit, and the blanking unit, is used to monitor the thickness of several sampling points of the formed concrete bricks, and determine the relevant working modes of the pressing unit according to the average thickness of the formed concrete bricks.

[0010] Further, the double-station pressing module further includes:

[0011] A rotatable workbench, which switches the pressing working mode by rotation;

[0012] A first working module, which is arranged on the rotatable workbench and is used to provide a mold for the concrete bricks;

[0013] A second working module, which is arranged on the rotatable workbench and is opposite to the first working module, and is used to provide a mold for the concrete bricks;

[0014] A demolding spraying assembly, which is used to spray a demolding agent on the inner walls of the first working module and the second working module before feeding;

[0015] A vision sensor, which is arranged above the rotatable workbench and is used to obtain the center offset displacement of the working module after the demolding mode of the first working module and the second working module ends;

[0016] Wherein, when the rotatable workbench rotates, the working positions of the first working module and the second working module are switched to the pressing mode or the demolding mode.

[0017] Further, the servo-hydraulic module includes:

[0018] A hydraulic motor, which is used to provide a pressing force for the first working module or the second working module whose working position is in the pressing mode;

[0019] A pressing plate, which is connected to the hydraulic motor and is used to press the concrete bricks;

[0020] Among them, the pressing process can be divided into pre-pressing, main pressing, and holding pressure according to different hydraulic strengths.

[0021] Furthermore, the vibrating and feeding module includes:

[0022] A vibrating screen, which is arranged in the vertical direction of the rotatable workbench, is used to evenly feed the concrete raw materials into the first working module and the second working module;

[0023] A scraper, which is connected to the rotatable workbench, is used to level the concrete raw materials fed by the vibrating screen.

[0024] Furthermore, the bottoms of the first working module and the second working module are movable floors, which interact with the ejecting mechanism to realize the demolding of the formed concrete bricks.

[0025] Furthermore, the control system monitors the thickness of several sampling points of the formed concrete bricks, calculates the average thickness of the formed concrete bricks, and compares the average thickness of the formed concrete bricks with the preset first standard concrete brick thickness and the preset second standard concrete brick thickness to determine the relevant working mode of the pressing unit.

[0026] Furthermore, when the average thickness of the formed concrete bricks is less than the preset first standard concrete brick thickness, the control system determines that the pressing effectiveness does not meet the requirements and determines the hydraulic strength of the hydraulic motor.

[0027] Furthermore, the hydraulic strength of the hydraulic motor is determined by the variance of the thickness of the formed concrete bricks.

[0028] Furthermore, when the average thickness of the formed concrete bricks is greater than the preset second standard concrete brick thickness, the control system determines that the pressing stability does not meet the requirements and obtains the offset displacement of the center of the working module.

[0029] Furthermore, the control system determines the leveling angle of the scraper according to the offset displacement of the center of the working module.

[0030] Compared with the prior art, the beneficial effects of the present invention are as follows. The device of the present invention realizes the improvement of the precision and effectiveness of concrete brick production through the coordinated work of optimizing feeding, pressing, discharging and the control system. The feeding unit uses a storage bin and a conveying mechanism in cooperation with a weight sensor to ensure the quantitative conveying of concrete raw materials, reducing the reduction of the stability of brick production caused by feeding errors; the vibrating cloth module evenly distributes the concrete raw materials in the mold, reducing the problem of uneven density of the pressed concrete bricks caused by uneven distribution of the raw materials, and improving the forming quality of the bricks. The pressing unit uses a servo-hydraulic module to drive a two-station pressing module, and alternates operations to achieve continuous production of concrete bricks, greatly improving the efficiency; at the same time, the servo system accurately controls the pressure to ensure that the density of the concrete bricks is consistent and improves the effectiveness of production. The present invention realizes the improvement of the precision and effectiveness of concrete brick production.

[0031] For the device of the present invention, the control system performs real-time thickness monitoring on several sampling points of the formed concrete bricks and calculates the average value, effectively eliminating the influence of accidental factors on the production of concrete bricks. A reasonable threshold is set for comparison, and when the threshold range is exceeded, the operation mode of the device is adjusted to reduce the influence of certain production factors on production, and further reduce the number of shutdowns for maintenance, improve the production efficiency of concrete bricks, and further realize the improvement of the precision and effectiveness of concrete brick production.

[0032] In the continuous production of the device of the present invention, since hard materials will cause certain wear on the mold and other production tools, when the original pressure is used to press the concrete bricks, due to the increase in the pressing resistance, the original density and volume requirements cannot be met, resulting in the production effect of the concrete bricks not meeting the requirements. By adjusting the pressure during the main pressing process and increasing the main pressing pressure, the effectiveness of pressing is improved; during the continuous pressing process, due to changes in environmental factors, certain physical properties of the concrete bricks will change accordingly, such as an increase in elasticity. At this time, when the original holding pressure is used, the concrete bricks will recover and defects will occur. By adjusting the holding pressure process, the pressing is made more stable, thereby improving the density and overall strength of the bricks. Further realizing the improvement of the precision and effectiveness of concrete brick production.

[0033] In the device of the present invention, during the continuous production process, the hard raw materials in the concrete raw materials will have a certain impact on the equipment. For example, due to excessive hard raw materials in the concrete bricks, uneven pressure distribution will occur during the pressing process, and insufficient compaction in local areas will affect the demolding process, causing the working module to have a central offset displacement and subsequent uneven cloth feeding problems. By adjusting the scraping angle of the scraper, the uniform distribution of the mixture in the mold is ensured, thus solving the problem of insufficient pressing caused by uneven cloth feeding and further improving the accuracy and effectiveness of concrete brick production. Description of the Drawings

[0034] Figure 1 It is the overall structural block diagram of the concrete brick pressing and forming device according to the embodiment of the present invention;

[0035] Figure 2 It is the specific structural block diagram of the pressing unit of the concrete brick pressing and forming device according to the embodiment of the present invention;

[0036] Figure 3 It is the overall logical block diagram for determining the relevant working modes of the pressing unit of the concrete brick pressing and forming device according to the embodiment of the present invention;

[0037] Figure 4 It is the specific logical block diagram for determining the hydraulic strength of the hydraulic motor of the concrete brick pressing and forming device according to the embodiment of the present invention;

[0038] Figure 5 It is the overall structural schematic diagram of the concrete brick pressing and forming device according to the embodiment of the present invention.

[0039] In the figure, 1. Weight sensor; 2. Storage bin; 3. Conveyor mechanism; 4. Electric limiter; 5. Vibrating screen; 6. Vision sensor; 7. Hydraulic motor; 8. Pressing plate; 9. First working module; 10. Ultrasonic sensor; 11. Conveyor belt; 12. Rotatable workbench; 13. Second working module; 14. Frame; 15. Scraper. Detailed Embodiments

[0040] In order to make the purpose and advantages of the present invention clearer, the present invention will be further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0041] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and do not limit the protection scope of the present invention.

[0042] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 andFigure 5 As shown, they are respectively the overall structural block diagram of the concrete brick pressing and forming device in the embodiment of the present invention, the specific structural block diagram of the pressing unit, the logic block diagram for determining the relevant working modes of the pressing unit, the specific logic block diagram for determining the hydraulic strength of the hydraulic motor, and the overall structural schematic diagram. A concrete brick pressing and forming device of the present invention includes:

[0043] A frame 14 for constituting the main structure of the device;

[0044] A feeding unit, which is arranged on the frame 14 and is used to convey the concrete raw materials to the pressing station. It includes a storage bin 2 for storing the concrete raw materials, a conveying mechanism 3 arranged at the discharge port of the storage bin 2 for conveying, and a weight sensor 1 arranged at the discharge port of the storage bin 2 for detecting the feeding of the raw materials;

[0045] A pressing unit, which is connected to the feeding unit and is used to press the concrete raw materials into initial concrete bricks. It includes a vibrating cloth module arranged at the end of the conveying mechanism 3, a double-station pressing module arranged in the vertical direction of the vibrating cloth module, and a servo-hydraulic module connected to the double-station pressing module for applying the pressing force;

[0046] A blanking unit, which is connected to the pressing unit and is used to remove the formed concrete bricks from the pressing station. It includes an ejection mechanism for demolding the formed concrete bricks, a conveyor belt 11 for conveying the formed concrete bricks to a specified position, and an ultrasonic sensor 10 connected to the conveyor belt 11 for obtaining the thickness of the formed concrete bricks;

[0047] A control system, which is respectively connected to the feeding unit, the pressing unit, and the blanking unit, and is used to monitor the thickness of several sampling points of the formed concrete bricks and determine the relevant working modes of the pressing unit according to the average thickness of the formed concrete bricks.

[0048] Specifically, the thickness of the formed concrete brick is the total length of the medium as concrete between the thickness sampling points of the current plane and the relative plane when the formed concrete brick is placed parallel to the horizontal plane. It can be understood that the method of using the ultrasonic sensor 10 to obtain the thickness of the formed concrete brick is a commonly used technical means by those skilled in the art and will not be elaborated here.

[0049] Specifically, the calculation method of the average thickness of the formed concrete brick is:

[0050]

[0051] Wherein, H is the average thickness of the formed concrete brick, hi is the thickness of the formed concrete brick at the i-th thickness sampling point, n is the number of thickness sampling points, and n is a natural number greater than or equal to 2.

[0052] Through the coordinated operation of optimizing the feeding, pressing, discharging, and control systems, the device of the present invention improves the accuracy and effectiveness of concrete brick production. The feeding unit uses the storage bin 2 and the conveying mechanism 3 in cooperation with the weight sensor 1 to ensure the quantitative conveying of concrete raw materials and reduce the reduction of the production stability of bricks caused by feeding errors; the vibration cloth module evenly distributes the concrete raw materials in the mold, reducing the problem of uneven density of the pressed concrete bricks caused by uneven distribution of raw materials and improving the forming quality of the bricks. The pressing unit uses the servo hydraulic module to drive the double-station pressing module, and the alternate operation realizes the continuous production of concrete bricks, greatly improving the efficiency; at the same time, the servo system accurately controls the pressure to ensure the consistent compactness of the concrete bricks and improve the effectiveness of production. The present invention realizes the improvement of the accuracy and effectiveness of concrete brick production.

[0053] Specifically, the double-station pressing module further includes:

[0054] A rotatable workbench 12, which switches the pressing working mode by rotation;

[0055] The first working module 9, which is arranged on the rotatable workbench 12 and is used to provide a mold for concrete bricks;

[0056] The second working module 13, which is arranged on the rotatable workbench 12 and is opposite to the first working module 9, and is used to provide a mold for concrete bricks;

[0057] A demolding spraying assembly, which is used to spray a demolding agent on the inner walls of the first working module 9 and the second working module 13 before cloth laying;

[0058] A vision sensor 6, which is arranged above the rotatable workbench 12 and is used to obtain the center offset displacement of the working module after the demolding mode of the first working module 9 and the second working module 13 ends;

[0059] Wherein, when the rotatable workbench 12 rotates, the working stations of the first working module 9 and the second working module 13 are switched to the pressing mode or the demolding mode.

[0060] Specifically, the center offset displacement L of the working module is the absolute value of the difference between the distance between the center points of the first working module 9 and the second working module 13 and the standard distance.

[0061] Specifically, the servo hydraulic module includes:

[0062] A hydraulic motor 7 for providing a pressing force to the first working module 9 or the second working module 13 in the pressing mode at the working station;

[0063] A pressing plate 8, which is connected to the hydraulic motor 7 and is used to press concrete bricks;

[0064] Among them, the pressing process can be divided into pre-pressing, main pressing, and pressure holding according to different hydraulic strengths.

[0065] In implementation, the pressures and times of the pre-pressing, main pressing, and pressure holding processes are set according to pre-tests or production requirements. Preferably, a set of pressures and times for the pre-pressing, main pressing, and pressure holding processes are provided here. The pre-pressing pressure P1 = 5 MPa, the time T1 = 2 s, the main pressing P2 = 15 MPa, the time T2 = 5 s, and the pressure holding P3 = 3 MPa, the time T3 = 3 s.

[0066] Specifically, the vibrating and feeding module includes:

[0067] A vibrating screen 5, which is arranged in the vertical direction of the rotatable workbench 12 and is used to evenly feed the concrete raw materials into the first working module 9 and the second working module 13;

[0068] A scraper 15, which is connected to the rotatable workbench 12 and is used to level the concrete raw materials fed by the vibrating screen 5.

[0069] Specifically, the bottoms of the first working module 9 and the second working module 13 are movable floors, which interact with the ejecting mechanism to realize the demolding of the formed concrete bricks.

[0070] Specifically, the control system monitors the thickness of several sampling points of the formed concrete bricks, calculates the average thickness of the formed concrete bricks, and compares the average thickness of the formed concrete bricks with the preset first standard concrete brick thickness and the preset second standard concrete brick thickness to determine the relevant working mode of the pressing unit.

[0071] In implementation, the preset first standard concrete brick thickness H1 and the preset second standard concrete brick thickness H2 can be set according to production requirements and pre-tests. Preferably, a set of values for the preset first standard concrete brick thickness H1 and the preset second standard concrete brick thickness H2 are provided here. H1 = 113 mm, H2 = 116 mm.

[0072] In the device of the present invention, the control system monitors the thickness of several sampling points of the formed concrete bricks in real time and calculates the average value, effectively eliminating the influence of accidental factors on the production of concrete bricks. A reasonable threshold is set for comparison. When the threshold range is exceeded, the operation mode of the device is adjusted to reduce the influence of certain production factors on production, thereby reducing the number of shutdowns for maintenance, improving the production efficiency of concrete bricks, and further realizing the improvement of the accuracy and effectiveness of concrete brick production.

[0073] Specifically, when the average thickness of the formed concrete bricks is less than the preset thickness of the first standard concrete bricks, the control system determines that the pressing effectiveness does not meet the requirements and determines the hydraulic strength of the hydraulic motor 7.

[0074] Specifically, the hydraulic strength of the hydraulic motor 7 is determined by the variance of the thickness of the formed concrete bricks.

[0075] Specifically, the present invention sets the variance X of the thickness of the formed concrete bricks and the preset thickness variance X0. It can be understood that the setting of the preset thickness variance can be obtained according to production requirements and through several test results. Preferably, a preset thickness variance X0 = 1.28 is provided here.

[0076] If X ≥ X0, the control system adjusts the main pressing process pressure P2 of the hydraulic motor 7 to P2’ = P2 ln(1 + e β );

[0077] If X < X0, the control system adjusts the pressure maintaining process pressure P3 of the hydraulic motor 7 to P3’ = P3 ln(1 + e β );

[0078] Among them, β is the hydraulic adjustment coefficient, and β > ln(e - 1).

[0079] In the device of the present invention, during continuous production, due to the wear of hard materials on the mold and other production tools, when the original pressure is used to press the concrete bricks, due to the increase in pressing resistance, the original density and volume requirements cannot be met, resulting in the production effect of the concrete bricks not meeting the requirements. By adjusting the main pressing process pressure, increasing the main pressing pressure, and improving the pressing effectiveness; during continuous pressing, due to changes in environmental factors, certain physical properties of the concrete bricks will change accordingly, such as increased elasticity. At this time, using the original pressure maintaining pressure will cause the concrete bricks to recover and generate defects. By adjusting the pressure maintaining process, the pressing is made more stable, thereby improving the density and overall strength of the bricks. Further realizing the improvement of the accuracy and effectiveness of concrete brick production.

[0080] Specifically, when the average thickness of the formed concrete bricks is greater than the preset second standard concrete brick thickness, the control system determines that the pressing stability does not meet the requirements and obtains the center offset displacement of the working module.

[0081] Specifically, the control system determines the leveling angle of the scraper according to the center offset displacement of the working module.

[0082] Specifically, the scraper 15 is connected to the screw through an electric limiter 4, and the screw changes the leveling angle of the scraper by controlling the rotation angle of the electric limiter 4.

[0083] In implementation, the control system is provided with a first displacement limit L1 for the center offset of the working module and a first displacement limit L2 for the center offset of the working module.

[0084] When L < L1, the control system determines not to adjust the scraper 15 and continues the pressing process.

[0085] When L1 ≤ L ≤ L2, the control system determines to adjust the leveling angle of the scraper.

[0086] When L2 < L, the control system determines a fault and issues a fault warning.

[0087] In implementation, the control system is provided with a preset center offset displacement L0 of the working module. The method for the control system to determine the leveling angle A of the scraper is as follows:

[0088] If L1 ≤ L ≤ L2, the leveling angle A of the scraper is adjusted to

[0089] In implementation, the first displacement limit L1 for the center offset of the working module, the first displacement limit L2 for the center offset of the working module, the preset center offset displacement L0 of the working module, and the leveling angle A of the scraper are set according to pre-tests or production requirements. Preferably, a first displacement limit L1 for the center offset of the working module, a first displacement limit L2 for the center offset of the working module, a preset center offset displacement L0 of the working module, and a leveling angle A of the scraper are provided here, where L1 = 5.98 mm, L2 = 20 mm, L0 = 10 mm, and A = 45°.

[0090] In the device of the present invention, since the hard raw materials in the concrete raw materials during the continuous production process will have a certain impact on the equipment. For example, due to excessive hard raw materials in the concrete bricks, the pressure distribution is uneven during the pressing process, and the local area is not pressed firmly, which affects the demolding process, and causes the center of the working module to shift and subsequent problems such as uneven cloth feeding. By adjusting the scraping angle of the scraper, the uniform distribution of the mixture in the mold is ensured, thereby solving the problem of insufficient pressing caused by uneven cloth feeding, and further improving the accuracy and effectiveness of the production of concrete bricks.

[0091] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

Claims

1. A concrete brick pressing and forming device, characterized in that, Including: A frame for forming the main structure of the device; A feeding unit, which is arranged on the frame and used to convey concrete raw materials to the pressing station, including a storage bin for storing concrete raw materials, a conveying mechanism arranged at the discharge port of the storage bin for conveying, and a weight sensor arranged at the discharge port of the storage bin for detecting the feeding of raw materials; A pressing unit, which is connected to the feeding unit and used to press the concrete raw materials into initial concrete bricks, including a vibrating cloth feeding module arranged at the end of the conveying mechanism, a double-station pressing module arranged in the vertical direction of the vibrating cloth feeding module, and a servo-hydraulic module connected to the double-station pressing module for applying a pressing force; A blanking unit, which is connected to the pressing unit and used to move the formed concrete bricks out of the pressing station, including an ejecting mechanism for demolding the formed concrete bricks, a conveyor belt for conveying the formed concrete bricks to a designated position, and an ultrasonic sensor connected to the conveyor belt for obtaining the thickness of the formed concrete bricks; A control system, which is respectively connected to the feeding unit, the pressing unit and the blanking unit, used to monitor the thickness of several sampling points of the formed concrete bricks, and determine the relevant working modes of the pressing unit according to the average thickness of the formed concrete bricks.

2. The concrete brick pressing and forming device according to claim 1, characterized in that, The double-station pressing module further includes: A rotatable workbench for switching the pressing working mode by rotation; A first working module, which is arranged on the rotatable workbench and used to provide a mold for concrete bricks; A second working module, which is arranged on the rotatable workbench and opposite to the first working module, and used to provide a mold for concrete bricks; A demolding spraying assembly for spraying a demolding agent on the inner walls of the first working module and the second working module before cloth feeding; A vision sensor, which is arranged above the rotatable workbench and used to obtain the center offset displacement of the working module after the demolding mode of the first working module and the second working module ends; Wherein, when the rotatable workbench rotates, the working stations of the first working module and the second working module are switched to the pressing mode or the demolding mode.

3. The concrete brick pressing and forming device according to claim 2, characterized in that, The servo-hydraulic module includes: A hydraulic motor for providing a pressing force to the first working module or the second working module with the working station in the pressing mode; A pressing plate, which is connected to the hydraulic motor and used to press the concrete bricks; Wherein, the pressing process can be divided into pre-pressing, main-pressing and pressure-holding according to different hydraulic intensities.

4. The concrete brick pressing and forming device according to claim 3, characterized in that, The vibrating cloth feeding module includes: A vibrating screen, which is arranged in the vertical direction of the rotatable workbench and used to evenly feed the concrete raw materials into the first working module and the second working module; A scraper, which is connected to the rotatable workbench and used to scrape flat the concrete raw materials fed by the vibrating screen.

5. The concrete brick pressing and forming device according to claim 4, characterized in that, The bottoms of the first working module and the second working module are movable floors, which interact with the ejecting mechanism to realize the demolding of the formed concrete bricks.

6. The concrete brick pressing and forming device according to claim 5, characterized in that, The control system monitors the thickness of several sampling points of the formed concrete bricks, calculates the average thickness of the formed concrete bricks, and compares the average thickness of the formed concrete bricks with the preset first standard concrete brick thickness and the preset second standard concrete brick thickness to determine the relevant working mode of the pressing unit.

7. The concrete brick pressing and forming device according to claim 6, characterized in that, When the average thickness of the formed concrete bricks is less than the preset first standard concrete brick thickness, the control system determines that the pressing effectiveness does not meet the requirements and determines the hydraulic strength of the hydraulic motor.

8. The concrete brick pressing and forming device according to claim 7, characterized in that, The hydraulic strength of the hydraulic motor is determined by the variance of the thickness of the formed concrete bricks.

9. The concrete brick pressing and forming device according to claim 8, characterized in that, When the average thickness of the formed concrete bricks is greater than the preset second standard concrete brick thickness, the control system determines that the pressing stability does not meet the requirements and obtains the center offset displacement of the working module.

10. The concrete brick pressing and forming device according to claim 9, wherein the control system determines the scraping angle of the scraper according to the center offset displacement of the working module.

Citation Information

Patent Citations

  • Cement concrete firing-free water permeable brick production system

    CN107457896A

  • Novel press forming of large -scale concrete fragment of brick device

    CN204772901U

  • Brick forming machine, application thereof and brick forming method

    WO2021068283A1