A concrete block compression molding device

Abstract

The present application relates to the technical field of concrete brick preparation, and particularly relates to a concrete brick pressing forming device, which comprises: a rack for constituting the main structure of the device; a feeding unit for conveying concrete raw materials to a pressing station, comprising a storage bin, a conveying mechanism and a weight sensor for detecting the raw material feeding; a pressing unit comprising a double-station pressing module, a servo-hydraulic module for applying a pressing force and a vibrating distribution module; a discharging unit for removing the formed concrete bricks from the pressing station, comprising an ejection mechanism, a conveyor belt for conveying the formed concrete bricks to a designated position and an ultrasonic sensor for obtaining the thickness of the formed concrete bricks; and a control system for determining the relevant working mode of the pressing unit according to the average thickness of the formed concrete bricks. The present application realizes the improvement of the precision and effectiveness of concrete brick production.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of concrete block preparation, and particularly relates to a concrete block pressing forming device. BACKGROUND

[0002] The concrete block is a standard size rectangular block used for building construction, and the concrete block is some of the most versatile building products because a wide variety of appearances can be achieved using them. In the process of preparation and forming, the pressing forming device is usually used to realize the pressing forming of the concrete.

[0003] A full-automatic concrete block pressing forming device is disclosed in Chinese Patent Publication No. CN114833920A, which comprises a support assembly, the support assembly comprises a rack, the top of the rack is provided with a compression assembly, the compression assembly is provided below the forming assembly, the forming assembly is provided below the brick supporting plate, a storage assembly, the storage assembly comprises a positioning plate, the positioning plate is arranged inside one end of the rack; a feeding assembly, the feeding assembly comprises a third air cylinder, the third air cylinder is fixedly connected to the outer wall of the rack, a limiting assembly, the limiting assembly comprises a first supporting plate, the first supporting plate is fixedly connected to the outer wall of the rack. The feeding assembly can push the brick supporting plate, thereby realizing the upward movement of the limiting plate when the brick supporting plate is fed, thereby limiting the position of the brick supporting plate. It can be seen that the full-automatic concrete block pressing forming device has the following problems: the determination of the pressing effectiveness reflected by the average thickness of the formed concrete block and the pressing stability reflected by the center displacement of the working module is inaccurate, which reduces the production accuracy and effectiveness of the concrete block. SUMMARY

[0004] Therefore, the present application provides a concrete block pressing forming device to overcome the problem of the reduction of the production accuracy and effectiveness of the concrete block due to the inaccurate determination of the pressing effectiveness reflected by the average thickness of the formed concrete block and the pressing stability reflected by the center displacement of the working module in the prior art.

[0005] To achieve the above-mentioned purpose, the present application provides a concrete block pressing forming device, which comprises a rack to constitute the main structure of the device.

[0006] A feeding unit is arranged on the rack to convey the concrete raw material to the pressing station, which comprises a storage bin for storing the concrete raw material, 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 the raw material.

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

[0008] a discharging unit connected with the pressing unit, used to remove the formed concrete bricks from the pressing station, comprising an ejection mechanism used to perform ejection operation on the formed concrete bricks, a conveyor belt used to convey the formed concrete bricks to a designated position, and an ultrasonic sensor connected with the conveyor belt and used to obtain the thickness of the formed concrete bricks;

[0009] a control system connected with the feeding unit, the pressing unit and the discharging unit respectively, used to monitor the thickness of a plurality of sampling points of the formed concrete bricks, and determine the relevant working mode of the pressing unit according to the average thickness of the formed concrete bricks.

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

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

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

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

[0014] an ejection spraying assembly used to spray an ejection agent on the inner walls of the first working module and the second working module before distribution;

[0015] a visual sensor arranged above the rotatable workbench and used to obtain the center offset displacement of the working module after the ejection mode of the first working module and the second working module ends;

[0016] wherein, when the rotatable workbench rotates, the stations of the first working module and the second working module are switched to be in the pressing mode or the ejection mode.

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

[0018] a hydraulic motor used to provide pressing force to the first working module or the second working module in the pressing mode;

[0019] a pressing plate connected with the hydraulic motor and used to press the concrete bricks;

[0020] The pressing process can be divided into pre-pressing, main pressing and pressure maintaining according to different hydraulic strengths.

[0021] Further, the vibrating material module comprises:

[0022] A vibrating screen is arranged in the vertical direction of the rotatable workbench to uniformly feed the concrete raw materials into the first work module and the second work module.

[0023] A scraper is connected to the rotatable workbench to scrape the concrete raw materials fed by the vibrating screen.

[0024] Further, the first work module and the second work module are provided with movable floors which interact with the ejection mechanism to realize the demolding of the molded concrete bricks.

[0025] Further, the control system monitors the thickness of several sampling points of the molded concrete bricks, calculates the average thickness of the molded concrete bricks, and compares the average thickness of the molded 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] Further, the control system is used to determine the pressing effectiveness when the average thickness of the molded concrete bricks is less than the preset first standard concrete brick thickness, and to determine the hydraulic strength of the hydraulic motor.

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

[0028] Further, the control system is used to determine the pressing stability when the average thickness of the molded concrete bricks is greater than the preset second standard concrete brick thickness, and to obtain the center offset displacement of the work module.

[0029] Further, the control system determines the scraping angle of the scraper according to the center offset displacement of the work module.

[0030] Compared with the prior art, the device has the advantages that the device realizes the improvement of the precision and effectiveness of the concrete brick production by optimizing the cooperation of the feeding, pressing, discharging and control systems; the feeding unit adopts the cooperation of the storage bin, the conveying mechanism and the weight sensor to ensure the quantitative conveying of the concrete raw materials and reduce the reduction of the stability of the brick production caused by the feeding error; the vibration distribution module makes the concrete raw materials uniformly distributed in the mold, reduces the problem of uneven density of the concrete bricks after pressing caused by the uneven distribution of the raw materials, and improves the forming quality of the bricks; the pressing unit adopts the servo hydraulic module to drive the double-station pressing module to realize the continuous production of the concrete bricks and greatly improve the efficiency; and the servo system accurately controls the pressure to ensure the consistency of the density of the concrete bricks and improve the effectiveness of the production.

[0031] The device realizes the improvement of the precision and effectiveness of the concrete brick production.

[0032] The device realizes the improvement of the precision and effectiveness of the concrete brick production.

[0033] The device provided by the application can ensure the uniform distribution of the mixture in the mold by adjusting the scraping angle of the scraper, thereby solving the problem of insufficient pressing caused by uneven distribution of the mixture, and further improving the precision and effectiveness of the production of the concrete bricks. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 The figure is a whole structure block diagram of the concrete brick pressing and forming device of the embodiment of the application.

[0035] Figure 2 The figure is a specific structure block diagram of the pressing unit of the concrete brick pressing and forming device of the embodiment of the application.

[0036] Figure 3 The figure is a whole logic block diagram of the related working mode of the pressing unit of the concrete brick pressing and forming device of the embodiment of the application.

[0037] Figure 4 The figure is a specific logic block diagram of the hydraulic strength of the hydraulic motor of the concrete brick pressing and forming device of the embodiment of the application.

[0038] Figure 5 The figure is a whole structure schematic diagram of the concrete brick pressing and forming device of the embodiment of the application.

[0039] In the figure, 1 is a weight sensor, 2 is a storage bin, 3 is a conveying mechanism, 4 is an electric position limiter, 5 is a vibrating screen, 6 is a visual sensor, 7 is a hydraulic motor, 8 is a pressing plate, 9 is a first working module, 10 is an ultrasonic sensor, 11 is a conveyor belt, 12 is a rotatable workbench, 13 is a second working module, 14 is a rack, and 15 is a scraper. DETAILED DESCRIPTION

[0040] In order to make the purpose and advantages of the application more clear and understandable, the application will be further described below in combination with the embodiments; it should be understood that the specific embodiments described herein are only used to explain the application, and are not used to limit the application.

[0041] The preferred embodiments of the application 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 application, and are not used to limit the protection scope of the application.

[0042] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 andFigure 5 As shown in the drawings, they are the overall structure block diagram of the concrete brick pressing forming device, the specific structure block diagram of the pressing unit, the logic block diagram of determining the related working mode of the pressing unit, the specific logic block diagram of determining the hydraulic strength of the hydraulic motor, and the overall structure schematic diagram. The concrete brick pressing forming device comprises:

[0043] The rack 14 is used to form the main structure of the device;

[0044] The feeding unit is arranged on the rack 14 and used to deliver the concrete raw materials to the pressing station, comprising a storage bin 2 used to store the concrete raw materials, a conveying mechanism 3 arranged at the discharge port of the storage bin 2 and used to deliver, and a weight sensor 1 arranged at the discharge port of the storage bin 2 and used to detect the feeding of the raw materials;

[0045] The pressing unit is connected with the feeding unit and used to press the concrete raw materials into initial concrete bricks, comprising a vibrating distribution module arranged at the end of the conveying mechanism 3, a double-station pressing module arranged in the vertical direction of the vibrating distribution module, and a servo hydraulic module connected with the double-station pressing module and used to apply pressing force;

[0046] The discharging unit is connected with the pressing unit and used to move the formed concrete bricks out of the pressing station, comprising an ejection mechanism used to perform demolding operation on the formed concrete bricks, a conveyor belt 11 used to deliver the formed concrete bricks to a designated position, and an ultrasonic sensor 10 connected with the conveyor belt 11 and used to obtain the thickness of the formed concrete bricks;

[0047] The control system is connected with the feeding unit, the pressing unit and the discharging unit respectively, used to monitor the thickness of several sampling points of the formed concrete bricks, and determine the related working mode of the pressing unit according to the average thickness of the formed concrete bricks.

[0048] Specifically, the thickness of the formed concrete bricks is the total length between the thickness sampling points of the current plane and the opposite plane when the formed concrete bricks are placed parallel to the horizontal plane, and the medium is concrete. It can be understood that the method for obtaining the thickness of the formed concrete bricks by using the ultrasonic sensor 10 is a common technical means for those skilled in the art, which will not be described here.

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

[0050]

[0051] H = (h1 + h2 + … + hn) / n, 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] The device optimizes the cooperation of feeding, pressing, discharging and control systems, realizes the improvement of the precision and effectiveness of concrete brick production. The feeding unit cooperates with the storage bin 2 and the conveying mechanism 3 with the weight sensor 1 to ensure the quantitative conveying of the concrete raw materials and reduce the reduction of the stability of brick production caused by feeding errors. The vibrating distribution module makes the concrete raw materials uniformly distributed in the mold, reduces the problem of uneven density of the pressed concrete bricks caused by uneven distribution of raw materials, and improves the forming quality of the bricks. The pressing unit adopts a servo hydraulic module to drive a double-station pressing module, which alternately works to realize the continuous production of concrete bricks and greatly improves the efficiency. At the same time, the servo system accurately controls the pressure to ensure the consistency of the density of the concrete bricks and improve the effectiveness of the production. The present application realizes the improvement of the precision and effectiveness of the concrete brick production.

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

[0054] A rotatable workbench 12 switches the pressing work mode by rotation;

[0055] A first work module 9 is arranged on the rotatable workbench 12 to provide a mold for concrete bricks;

[0056] A second work module 13 is arranged on the rotatable workbench 12 and opposite to the first work module 9 to provide a mold for concrete bricks;

[0057] A demolding spraying assembly sprays a demolding agent on the inner walls of the first work module 9 and the second work module 13 before distribution;

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

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

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

[0061] Specifically, the servo hydraulic module comprises:

[0062] A hydraulic motor 7 is configured to provide a pressing force to the first working module 9 or the second working module 13 in the pressing mode.

[0063] A pressing plate 8 is connected to the hydraulic motor 7 and configured to press the concrete bricks.

[0064] The pressing process can be divided into pre-pressing, main pressing and pressure maintaining according to the hydraulic strength.

[0065] In the embodiment, the pressure and time of the pre-pressing, main pressing and pressure maintaining process are set according to the pre-test or production requirements. Preferably, the pressure and time of the pre-pressing, main pressing and pressure maintaining process are provided as follows: pre-pressing pressure P1=5MPa, time T1=2s, main pressing P2=15MPa, time T2=5s, and pressure maintaining P3=3MPa, time T3=3s.

[0066] Specifically, the vibrating material module comprises:

[0067] A vibrating screen 5 is arranged in the vertical direction of the rotatable workbench 12 and configured to uniformly feed the concrete raw materials into the first working module 9 and the second working module 13.

[0068] A scraper 15 is connected to the rotatable workbench 12 and configured to scrape the concrete raw materials fed by the vibrating screen 5.

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

[0070] Specifically, the control system is configured to monitor the thickness of a plurality of sampling points of the formed concrete bricks, calculate the average thickness of the formed concrete bricks, and compare the average thickness of the formed concrete bricks with a preset first standard concrete brick thickness and a preset second standard concrete brick thickness to determine the relevant working mode of the pressing unit.

[0071] In the embodiment, the preset first standard concrete brick thickness H1 and the preset second standard concrete brick thickness H2 can be set according to the production requirements and the pre-test. Preferably, the preset first standard concrete brick thickness H1 and the preset second standard concrete brick thickness H2 are provided as follows: H1=113mm and H2=116mm.

[0072] The device and the control system monitor the thickness of the formed concrete bricks at several sampling points in real time, calculate the average value, effectively eliminate the influence of accidental factors on the production of the concrete bricks, compare with a reasonable threshold value, adjust the operation mode of the device when the threshold value is exceeded, thereby reducing the influence of some production factors on the production, further reducing the number of shutdown maintenance, improving the efficiency of the concrete brick production, and further improving the accuracy and effectiveness of the concrete brick production.

[0073] Specifically, the control system is used to determine that the pressing effectiveness does not meet the requirements when the average thickness of the formed concrete bricks is less than a preset first standard concrete brick thickness, and determine 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 application sets the variance X of the thickness of the formed concrete bricks, and a preset thickness variance X0, which can be understood that the preset thickness variance can be obtained according to the 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] Wherein, β is the hydraulic adjustment coefficient, β>ln(e-1).

[0079] The device can effectively eliminate the influence of accidental factors on the production of the concrete bricks, compare with a reasonable threshold value, adjust the operation mode of the device when the threshold value is exceeded, thereby reducing the influence of some production factors on the production, further reducing the number of shutdown maintenance, improving the efficiency of the concrete brick production, and further improving the accuracy and effectiveness of the concrete brick production.

[0080] Specifically, the control system is used to determine that the pressing stability is not qualified when the average thickness of the formed concrete bricks is greater than the preset second standard concrete brick thickness, and to obtain the center offset displacement of the working mold set.

[0081] Specifically, the control system determines the scraping angle of the scraper according to the center offset displacement of the working mold set.

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

[0083] In implementation, the control system is provided with a first center offset displacement limit L1 of the working mold set, a second center offset displacement limit L2 of the working mold set, and a preset center offset displacement L0 of the working mold set.

[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 scraping 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 mold set, and the method for determining the scraping angle A of the scraper by the control system is as follows:

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

[0089] In implementation, the first center offset displacement limit L1 of the working mold set, the second center offset displacement limit L2 of the working mold set, the preset center offset displacement L0 of the working mold set, and the scraping angle A of the scraper are set according to pre-test or production requirements. Preferably, the first center offset displacement limit L1 of the working mold set, the second center offset displacement limit L2 of the working mold set, the preset center offset displacement L0 of the working mold set, and the scraping angle A of the scraper are provided, L1=5.98mm, L2=20mm, L0=10mm, and A=45°.

[0090] The device provided by the application can ensure the uniform distribution of the mixture in the mold by adjusting the scraping angle of the scraper, thereby solving the problem of insufficient pressing caused by uneven distribution, and further improving the precision and effectiveness of the production of the concrete bricks.

[0091] So far, the technical solutions of the application have been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the application, and the technical solutions after the changes or replacements will all fall within the protection scope of the application.

Claims

1. A concrete brick pressing and forming device, characterized in that: include: A frame, which is used to constitute the main structure of the device; A feeding unit, which is provided on the frame and is used to convey concrete raw materials to the pressing station, includes a storage bin for storing concrete raw materials, a conveying mechanism provided at the discharge port of the storage bin for conveying, and a weight sensor provided at the discharge port of the storage bin for detecting the feeding of raw materials; A pressing unit connected to the feeding unit is used to press the concrete raw materials into initial concrete bricks, comprising a vibrating distribution module arranged at the end of the conveying mechanism, a double-station pressing module arranged in a vertical direction of the vibrating distribution module, and a servo hydraulic module connected to the double-station pressing module for applying a pressing force; a blanking unit connected to the pressing unit and used to move the formed concrete bricks out of the pressing station, comprising an ejection mechanism for demoulding the formed concrete bricks, a conveyor belt for transporting 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 connected to the feeding unit, the pressing unit, and the unloading unit, respectively, for monitoring the thickness of the formed concrete blocks at a plurality of sampling points and determining a relevant working mode of the pressing unit according to the average thickness of the formed concrete blocks; Wherein, the double-station pressing module further includes: The workbench can be rotated to switch the pressing working mode; a first working mold assembly, which is arranged on the rotatable working table and is used to provide a mold for a concrete brick; a second working die set, which is disposed on the rotatable working table and is opposite to the first working die set, and is used to provide a mold for concrete bricks; A demoulding spraying assembly is used to spray a demoulding agent on the inner walls of the first working module and the second working module before the materials are laid; A visual sensor is provided above the rotatable workbench to obtain a center offset displacement of the working modules after the demolding mode of the first working module and the second working module is completed; Wherein, when the rotatable workbench rotates, the working positions of the first working module and the second working module are switched to a pressing mode or a demolding mode.

2. The concrete brick pressing and forming device according to claim 1, characterized in that: The servo hydraulic module includes: A hydraulic motor, configured to provide a pressing force to the first working die or the second working die in a pressing mode; a pressing plate connected to the hydraulic motor for pressing the concrete bricks; Among them, the pressing process can be divided into pre-pressing, main pressing and holding pressure according to the different hydraulic intensity.

3. The concrete brick pressing and forming device according to claim 2, characterized in that: The vibration cloth module includes: a vibrating screen, which is arranged in the vertical direction of the rotatable worktable and is used to evenly move the concrete raw materials into the first working module and the second working module; A scraper is connected to the rotatable workbench and is used to level the concrete raw materials stepped into by the vibrating screen.

4. The concrete brick pressing and forming device according to claim 3, characterized in that: The bottoms of the first working module and the second working module are movable floors, which interact with the ejection mechanism to realize demoulding of the formed concrete bricks.

5. The concrete brick pressing and forming device according to claim 4, characterized in that: The control system monitors the thickness of the formed concrete bricks at several sampling points, 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.

6. The concrete brick pressing and forming device according to claim 5, characterized in that: The control system is used to determine that the pressing effectiveness does not meet the requirements when the average thickness of the formed concrete bricks is less than the preset first standard concrete brick thickness, and to determine the hydraulic strength of the hydraulic motor.

7. The concrete brick pressing and forming device according to claim 6, characterized in that: The hydraulic strength of the hydraulic motor is determined by the variance of the thickness of the concrete blocks after forming.

8. The concrete brick pressing and forming device according to claim 7, characterized in that: The control system is used to determine that the pressing stability does not meet the requirements when the average thickness of the concrete bricks after forming is greater than the preset second standard concrete brick thickness, and to obtain the center offset displacement of the working module.

9. The concrete brick pressing and forming device according to claim 8, characterized in that the control system determines the scraping angle of the scraper according to the center offset displacement of the working module.

Images