Cement mortar automatic forming, curing and testing integrated equipment and control method

Abstract

The invention relates to the technical field of building material detection, discloses cement mortar automatic forming, curing and testing integrated equipment and a control method, and aims to realize automation of the whole process of cement mortar detection, reduce manual operation, reduce labor intensity and improve detection efficiency. Meanwhile, the bending resistance and compression resistance of the cement mortar are tested in combination with temperature environmental factors, the deformation of a test piece in the whole test process is monitored, the accuracy and stability of a test result are ensured through accurate temperature control, errors caused by the environmental factors are reduced, and the test efficiency is improved. The test result is judged according to the deformation of the test piece in the whole test process, so that the cement mortar test result is prevented from being misjudged, and the risk of potential disqualification is eliminated.

Description

Technical Field

[0001] The invention relates to the technical field of building material detection, and in particular to a cement mortar automatic forming, curing and testing integrated device and a control method. Background Art

[0002] During the production and use of cement, the performance of cement needs to be strictly tested, among which the molding, curing and performance testing of cement mortar are important links. In the traditional cement mortar testing process, molding, curing and testing are carried out on different equipment respectively, which is cumbersome and requires manual transfer of test pieces many times, which not only consumes a lot of manpower and time, but also easily causes damage to the test pieces during the transfer process, affecting the accuracy of the test results.

[0003] At the same time, the existing cement mortar specimen testing method has many shortcomings: on the one hand, the traditional method is not precise enough in controlling the test environment, and does not consider that the fluctuation of temperature factors will have a significant impact on the test results; on the other hand, only the load when the specimen is destroyed is obtained, and there is a lack of monitoring of the entire test process, resulting in incomplete test results. Therefore, the present invention provides a cement mortar automatic forming, maintenance and testing integrated equipment and control method. Summary of the invention

[0004] The purpose of the present invention is to provide a cement mortar automatic forming, curing and testing integrated equipment and control method to solve the above technical problems.

[0005] The purpose of the present invention can be achieved by the following technical solutions: An integrated equipment for automatic forming, curing and testing of cement mortar, comprising a raw material mixing module, a forming module, a curing module, a testing module and a control system, wherein the raw material mixing module comprises an automatic batching device, which can accurately weigh the raw materials according to a preset ratio, and fully stir and mix them through a stirring mechanism to ensure the uniformity of the cement mortar; The molding module is connected to the raw material mixing module, and includes an automated mold opening and closing mechanism and a vibration molding device. The mixed cement mortar enters the mold of the molding module through a conveying pipeline. The mold is automatically positioned and closed under the action of the automated mold opening and closing mechanism. The vibration molding device vibrates the cement mortar in the mold according to a set frequency and time to fill it densely, thereby completing the molding of the test piece; The curing module is connected to the forming module. The formed specimens directly enter the curing module through the conveying device. The curing module is equipped with a temperature and humidity control system, which can accurately control the temperature and humidity of the curing environment, simulate different curing conditions, and ensure that the specimens are cured under a standard environment. The test module is connected to the curing module. The test specimens after curing are automatically transported to the test module. The test module includes a compressive strength test device and a flexural strength test device, and records and analyzes the test data in real time and sends it to the control system; Control system: the entire device is centrally controlled by the control system. Operators can control each module through the operation interface and analyze and evaluate the data automatically sent by the test module.

[0006] A control method for cement mortar automatic forming, curing and testing integrated equipment, the method comprising the following steps: Step S1, raw material mixing: the operator inputs the required cement mortar mix ratio parameters on the operation interface of the control system, and the automatic batching device accurately weighs the corresponding amount of cement, sand and water from the cement storage bin, the sand storage bin and the water storage tank according to the parameters, and the weighed raw materials enter the stirring mechanism, and the stirring mechanism stirs according to the set stirring speed and time to fully mix the cement, sand and water to form cement mortar that meets the requirements; Step S2, molding step: the mixed cement mortar enters the mold of the molding module through the conveying pipeline, the mold is automatically positioned and closed under the action of the automated mold opening and closing mechanism, and the vibration molding device is started to vibrate the mold according to the preset frequency and time, so that the cement mortar is densely filled in the mold, and the molding of the test piece is completed; Step S3, curing step: the formed specimen directly enters the curing module through the conveying device, and the temperature and humidity control system in the curing module automatically adjusts the temperature and humidity in the curing room according to the set curing conditions; During the curing process, the temperature and humidity control system monitors the temperature and humidity of the curing environment in real time and automatically adjusts according to the monitoring data to ensure that the specimen is always in a standard curing environment; Step S4, test step: the cured specimen is transported to the test module by the transport device, and a compressive strength test and a flexural strength test are performed respectively. The test module transmits the test data to the control system in real time, and the control system evaluates the data.

[0007] As a further description of the solution of the present invention, the specific working process of step S4 includes: Step S41, taking out cement mortar specimens from the curing room, removing unqualified specimens, and numbering qualified specimens according to a pre-established numbering rule; Step S42, start the temperature control system of the test environment chamber, perform a flexural strength test on the qualified test piece, and transmit the data to the control system, which analyzes and evaluates the flexural test; Step S43, start the temperature control system of the test environment chamber, perform a compressive strength test on the qualified test pieces, and transmit the data to the control system, which analyzes and evaluates the compressive strength test data.

[0008] As a further description of the solution of the present invention, the specific working process of step S42 includes: According to the temperature change, the flexural strength test process is divided into n stages. The load is slowly applied at the set loading rate until the specimen breaks, and the flexural failure load at the time of fracture is automatically recorded. At the same time, the displacement sensor is used to monitor the first deformation of the specimen in real time to obtain the deformation curve of the first deformation over time in each stage. According to the flexural failure load at each stage and the deformation curve of the first deformation amount over time at each stage , analyze and evaluate the specimen flexural test process.

[0009] As a further description of the scheme of the present invention, the specific process of analyzing and evaluating the specimen flexural test process includes: Compare the flexural failure load at fracture in each stage with the standard flexural failure load at fracture set by the system. If the flexural failure load at fracture in any stage is lower than the standard flexural failure load at fracture set by the system, it means that the flexural test result of the cement mortar specimen is unqualified. If the flexural failure load at fracture in any stage is not lower than the standard flexural failure load at fracture set by the system, the flexural test results of the cement mortar specimens are further analyzed.

[0010] As a further description of the scheme of the present invention, the specific process of further analyzing the flexural test results of the cement mortar specimens includes: The calculation model of potential unqualified coefficient of flexural test results of cement mortar specimens is constructed, and the expression is: ; In the formula, is the potential failure coefficient of the flexural test results of cement mortar specimens, is the deformation curve of the first deformation amount over time in the i-th flexural test stage, is the standard curve of the first deformation amount versus time in the i-th flexural test stage, is the initial moment of the i-th anti-bending test stage, is the end time of the i-th anti-bending test stage, is the total first deformation under the i-th flexural test stage, is the weight coefficient corresponding to the i-th flexural test stage, i belongs to n; Potential failure coefficient of flexural test results of cement mortar specimens Compared with the set potential unqualified coefficient range of the flexural test results of cement mortar specimens, if the potential unqualified coefficient of the flexural test results of cement mortar specimens is If the set potential unqualified coefficient range of the flexural test results of the cement mortar specimens is not met, it means that the flexural test results of the cement mortar specimens are potentially unqualified.

[0011] As a further description of the solution of the present invention, the specific working process of step S43 includes: According to the temperature change, the compressive strength test process is divided into m stages. The load is slowly applied at the set loading rate until the specimen is destroyed, and the compressive failure load is automatically recorded. At the same time, the displacement sensor is used to monitor the first deformation of the specimen in real time, and the deformation curve of the second deformation over time in each stage is obtained. According to the compressive failure load at each stage and the deformation curve of the second deformation at each stage over time , analyze and evaluate the specimen compression test process.

[0012] As a further description of the scheme of the present invention, the specific process of analyzing and evaluating the compression test process of the specimen includes: Compare the compressive failure load at each stage of failure with the standard compressive failure load at failure set by the system. If the compressive failure load at any stage of failure is lower than the standard compressive failure load at failure set by the system, it means that the compression test result of the cement mortar specimen is unqualified. If the compressive failure load at the time of failure at any stage is not lower than the standard compressive failure load at the time of failure set by the system, the compressive test results of the cement mortar specimens are further analyzed.

[0013] As a further description of the scheme of the present invention, the specific process of further analyzing the compression test results of the cement mortar specimens includes: The potential unqualified coefficient calculation model of the compression test results of cement mortar specimens was constructed, and the expression is: ; In the formula, is the potential failure coefficient of the compression test results of cement mortar specimens, is the deformation curve of the second deformation over time in the jth compression test stage, is the standard curve of the second deformation over time in the jth compression test stage, is the initial moment of the jth stress test phase, is the end time of the jth stress test phase, is the total second deformation under the jth compression test stage, is the weight coefficient corresponding to the jth compression test stage, j belongs to m; Potential failure coefficient of compression test results of cement mortar specimens Compared with the set potential unqualified coefficient range of the compression test results of cement mortar specimens, if the potential unqualified coefficient of the compression test results of cement mortar specimens is If the set potential unqualified coefficient range of the compression test results of the cement mortar specimens is not met, it means that the compression test results of the cement mortar specimens are potentially unqualified.

[0014] As a further description of the solution of the present invention, the specific working process of step S4 also includes: Step S44, analyzing the overall test results of the cement mortar specimen; The calculation model of the overall state coefficient of cement mortar specimens is constructed, and the expression is: = + ; In the formula, is the overall state coefficient of the cement mortar specimen, is the flexural failure load at fracture in the i-th flexural test stage, is the standard flexural failure load at fracture set by the system in the i-th flexural test stage, is the compressive failure load at the time of failure in the jth compression test stage, is the compressive failure standard load set for the system at the time of failure in the jth compressive test stage, The potential unqualified coefficient range of the flexural test results of cement mortar specimens set by the system, The potential unqualified coefficient range of the compression test results of cement mortar specimens set by the system, and are weight coefficients respectively; The overall state coefficient of cement mortar specimen Compared with the overall state coefficient table range of cement mortar specimens set by the system, according to the overall state coefficient of cement mortar specimens The corresponding interval is used to evaluate the overall test results of the cement mortar specimens.

[0015] Beneficial effects of the present invention: 1. The present invention realizes the automation of the whole process of cement mortar detection, reduces manual operation, reduces labor intensity, and improves detection efficiency; 2. The present invention combines temperature and environmental factors to conduct flexural and compressive tests on cement mortar, and monitors the deformation of the specimen throughout the testing process. Precise temperature control ensures the accuracy and stability of the test results, reduces errors caused by environmental factors, and judges the test results based on the deformation of the specimen throughout the testing process, thereby avoiding misjudgment of the cement mortar test results and eliminating the risk of potential non-compliance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a partial flow chart of the control method of the cement mortar automatic forming, curing and testing integrated equipment provided by the present invention. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1 As shown, an integrated equipment for automatic forming, curing and testing of cement mortar includes a raw material mixing module, a forming module, a curing module, a testing module and a control system. The raw material mixing module includes an automatic batching device, which can accurately weigh the raw materials according to a preset ratio and fully stir and mix them through a stirring mechanism to ensure the uniformity of the cement mortar; The molding module is connected to the raw material mixing module, and includes an automated mold opening and closing mechanism and a vibration molding device. The mixed cement mortar enters the mold of the molding module through a conveying pipeline. The mold is automatically positioned and closed under the action of the automated mold opening and closing mechanism. The vibration molding device vibrates the cement mortar in the mold according to a set frequency and time to fill it densely, thereby completing the molding of the test piece; The curing module is connected to the forming module. The formed specimens directly enter the curing module through the conveying device. The curing module is equipped with a temperature and humidity control system, which can accurately control the temperature and humidity of the curing environment, simulate different curing conditions, and ensure that the specimens are cured under a standard environment. The test module is connected to the curing module. The test specimens after curing are automatically transported to the test module. The test module includes a compressive strength test device and a flexural strength test device, and records and analyzes the test data in real time and sends it to the control system; Control system: the entire device is centrally controlled by the control system. Operators can control each module through the operation interface and analyze and evaluate the data automatically sent by the test module.

[0020] A control method for cement mortar automatic forming, curing and testing integrated equipment, the method comprising the following steps: Step S1, raw material mixing: the operator inputs the required cement mortar mix ratio parameters on the operation interface of the control system, and the automatic batching device accurately weighs the corresponding amount of cement, sand and water from the cement storage bin, the sand storage bin and the water storage tank according to the parameters, and the weighed raw materials enter the stirring mechanism, and the stirring mechanism stirs according to the set stirring speed and time to fully mix the cement, sand and water to form cement mortar that meets the requirements; Step S2, molding step: the mixed cement mortar enters the mold of the molding module through the conveying pipeline, the mold is automatically positioned and closed under the action of the automated mold opening and closing mechanism, and the vibration molding device is started to vibrate the mold according to the preset frequency and time, so that the cement mortar is densely filled in the mold, and the molding of the test piece is completed; Step S3, curing step: the formed specimen directly enters the curing module through the conveying device, and the temperature and humidity control system in the curing module automatically adjusts the temperature and humidity in the curing room according to the set curing conditions; During the curing process, the temperature and humidity control system monitors the temperature and humidity of the curing environment in real time and automatically adjusts according to the monitoring data to ensure that the specimen is always in a standard curing environment; Step S4, test step: the cured specimen is transported to the test module by the transport device, and a compressive strength test and a flexural strength test are performed respectively. The test module transmits the test data to the control system in real time, and the control system evaluates the data.

[0021] Through the above technical scheme, the present invention allows an operator to input the required cement mortar mix ratio parameters on the operation interface of the control system, and the automatic batching device accurately weighs the corresponding amount of cement, sand and water from the cement storage bin, the sand storage bin and the water storage tank according to the parameters, and then the weighed raw materials enter the stirring mechanism, the stirring mechanism stirs according to the set stirring speed and time, so that the cement, sand and water are fully mixed and evenly mixed to form cement mortar that meets the requirements, and then the mixed cement mortar enters the mold of the molding module through the conveying pipeline, the mold is automatically positioned and closed under the action of the automatic mold opening and closing mechanism, and then the vibration molding device is started to vibrate the mold according to the preset frequency and time, so that the cement mortar is densely filled in the mold, and the molding of the test piece is completed; The specimens after molding are directly sent to the curing module through the conveying device. The temperature and humidity control system in the curing module automatically adjusts the temperature and humidity in the curing room according to the set curing conditions, such as temperature 20±2℃ and humidity above 95%. During the curing process, the temperature and humidity control system monitors the temperature and humidity of the curing environment in real time, and automatically adjusts according to the monitoring data to ensure that the specimens are always in a standard curing environment. The specimens after curing are transported to the testing module by the conveying device, and first enter the flexural strength testing device, which performs flexural tests on the specimens at different temperatures, records relevant data and analyzes the test results based on the data. Subsequently, they enter the compressive strength testing device, which performs flexural tests on the specimens at different temperatures, records relevant data and analyzes the test results based on the data.

[0022] As a further description of the solution of the present invention, the specific working process of step S4 includes: Step S41, taking out cement mortar specimens from the curing room, removing unqualified specimens, and numbering qualified specimens according to a pre-established numbering rule; Step S42, start the temperature control system of the test environment chamber, perform a flexural strength test on the qualified test piece, and transmit the data to the control system, which analyzes and evaluates the flexural test; Step S43, start the temperature control system of the test environment chamber, perform a compressive strength test on the qualified test pieces, and transmit the data to the control system, which analyzes and evaluates the compressive strength test data.

[0023] As a further description of the solution of the present invention, the specific working process of step S42 includes: According to the temperature change, the flexural strength test process is divided into n stages. The load is slowly applied at the set loading rate until the specimen breaks, and the flexural failure load at the time of fracture is automatically recorded. At the same time, the displacement sensor is used to monitor the first deformation of the specimen in real time to obtain the deformation curve of the first deformation over time in each stage. According to the flexural failure load at each stage and the deformation curve of the first deformation amount over time at each stage , analyze and evaluate the specimen flexural test process.

[0024] As a further description of the scheme of the present invention, the specific process of analyzing and evaluating the specimen flexural test process includes: Compare the flexural failure load at fracture in each stage with the standard flexural failure load at fracture set by the system. If the flexural failure load at fracture in any stage is lower than the standard flexural failure load at fracture set by the system, it means that the flexural test result of the cement mortar specimen is unqualified. If the flexural failure load at fracture in any stage is not lower than the standard flexural failure load at fracture set by the system, the flexural test results of the cement mortar specimens are further analyzed.

[0025] As a further description of the scheme of the present invention, the specific process of further analyzing the flexural test results of the cement mortar specimens includes: The calculation model of potential unqualified coefficient of flexural test results of cement mortar specimens is constructed, and the expression is: ; In the formula, is the potential failure coefficient of the flexural test results of cement mortar specimens, is the deformation curve of the first deformation amount over time in the i-th flexural test stage, is the standard curve of the first deformation variable over time in the i-th flexural test stage, is the initial moment of the i-th anti-bending test stage, is the end time of the i-th anti-bending test stage, is the total first deformation under the i-th flexural test stage, is the weight coefficient corresponding to the i-th flexural test stage, i belongs to n; Potential failure coefficient of flexural test results of cement mortar specimens Compared with the set potential unqualified coefficient range of the flexural test results of cement mortar specimens, if the potential unqualified coefficient of the flexural test results of cement mortar specimens is If the set potential unqualified coefficient range of the flexural test results of the cement mortar specimens is not met, it means that the flexural test results of the cement mortar specimens are potentially unqualified.

[0026] Through the above technical scheme, this embodiment provides a method for testing the flexural strength of cement mortar specimens. First, the test process is divided into n stages according to the temperature change. Then, the flexural failure load of the specimen at fracture in each stage is obtained. If the flexural failure load at fracture in any stage is lower than the standard flexural failure load at fracture set by the system, it means that the flexural test result of the cement mortar specimen is unqualified. If the flexural failure load at fracture in any stage is not lower than the standard flexural failure load at fracture set by the system, the deformation curve of the first deformation amount of the specimen at each stage over time is obtained. Then, the deformation curve is calculated by the formula The potential unqualified coefficient of the flexural test result of the cement mortar specimen is obtained, and the potential unqualified coefficient of the flexural test result of the cement mortar specimen is obtained. Compared with the set potential unqualified coefficient range of the flexural test results of cement mortar specimens, if the potential unqualified coefficient of the flexural test results of cement mortar specimens is If the set potential unqualified coefficient range of the flexural test results of the cement mortar specimens is not met, it means that the flexural test results of the cement mortar specimens are potentially unqualified.

[0027] As a further description of the solution of the present invention, the specific working process of step S43 includes: According to the temperature change, the compressive strength test process is divided into m stages. The load is slowly applied at the set loading rate until the specimen is destroyed, and the compressive failure load is automatically recorded. At the same time, the displacement sensor is used to monitor the first deformation of the specimen in real time, and the deformation curve of the second deformation over time in each stage is obtained. According to the compressive failure load at each stage and the deformation curve of the second deformation at each stage over time , analyze and evaluate the specimen compression test process.

[0028] As a further description of the scheme of the present invention, the specific process of analyzing and evaluating the compression test process of the specimen includes: Compare the compressive failure load at each stage of failure with the standard compressive failure load at failure set by the system. If the compressive failure load at any stage of failure is lower than the standard compressive failure load at failure set by the system, it means that the compression test result of the cement mortar specimen is unqualified. If the compressive failure load at the time of failure at any stage is not lower than the standard compressive failure load at the time of failure set by the system, the compressive test results of the cement mortar specimens are further analyzed.

[0029] As a further description of the scheme of the present invention, the specific process of further analyzing the compression test results of the cement mortar specimens includes: The potential unqualified coefficient calculation model of the compression test results of cement mortar specimens was constructed, and the expression is: ; In the formula, is the potential failure coefficient of the compression test results of cement mortar specimens, is the deformation curve of the second deformation over time in the jth compression test stage, is the standard curve of the second deformation over time in the jth compression test stage, is the initial moment of the jth stress test phase, is the end time of the jth stress test phase, is the total second deformation under the jth compression test stage, is the weight coefficient corresponding to the jth compression test stage, j belongs to m; Potential failure coefficient of compression test results of cement mortar specimens Compared with the set potential unqualified coefficient range of the compression test results of cement mortar specimens, if the potential unqualified coefficient of the compression test results of cement mortar specimens is If the set potential unqualified coefficient range of the compression test results of the cement mortar specimens is not met, it means that the compression test results of the cement mortar specimens are potentially unqualified.

[0030] Through the above technical scheme, this embodiment provides a method for compressive testing of cement mortar specimens. First, the test process is divided into m stages according to temperature changes. Then, the compressive failure load of the specimen at the time of failure is obtained in each stage. If the compressive failure load at the time of failure in any stage is lower than the standard compressive failure load at the time of failure set by the system, it means that the compression test result of the cement mortar specimen is unqualified. If the compressive failure load at the time of failure in any stage is not lower than the standard compressive failure load at the time of failure set by the system, the deformation curve of the second deformation amount of the specimen at each stage over time is obtained. Then, through the formula Get the potential unqualified coefficient of the compression test result of the cement mortar specimen, and convert the potential unqualified coefficient of the compression test result of the cement mortar specimen into Compared with the set potential unqualified coefficient range of the compression test results of cement mortar specimens, if the potential unqualified coefficient of the compression test results of cement mortar specimens is If the set potential unqualified coefficient range of the compression test results of the cement mortar specimens is not met, it means that the compression test results of the cement mortar specimens are potentially unqualified.

[0031] The weight coefficient corresponding to the i-th flexural test stage It is related to the corresponding temperature stage and the flexural failure load of each stage, and the temperature corresponding to each stage is obtained respectively. The corresponding failure loads at each stage ; The corresponding weight coefficients of each flexural test stage are calculated by the following formula: ; The weight coefficient corresponding to the j-th compression test stage It is related to the corresponding temperature stage and the compressive failure load of each stage, and the temperature corresponding to each stage is obtained respectively. Compressive failure load corresponding to each stage ; The corresponding weight coefficients of each compression test stage are calculated by the following formula: ; In the formula, is the flexural failure load at fracture in the i-th flexural test stage, is the compressive failure load at the time of failure in the jth compression test stage, is the temperature corresponding to the i-th bending test stage, is the temperature corresponding to the jth compression test stage.

[0032] As a further description of the solution of the present invention, the specific working process of step S4 also includes: Step S44, analyzing the overall test results of the cement mortar specimen; The calculation model of the overall state coefficient of cement mortar specimens is constructed, and the expression is: = + ; In the formula, is the overall state coefficient of the cement mortar specimen, is the flexural failure load at fracture in the i-th flexural test stage, is the standard flexural failure load at fracture set by the system in the i-th flexural test stage, is the compressive failure load at the time of failure in the jth compression test stage, is the compressive failure standard load set for the system at the time of failure in the jth compressive test stage, The potential unqualified coefficient range of the flexural test results of cement mortar specimens set by the system, The potential unqualified coefficient range of the compression test results of cement mortar specimens set by the system, and are weight coefficients respectively; It should be noted that the weight coefficient belong , weight coefficient belong , , is an empirical value, determined according to the degree of dependence on the failure load and deformation when analyzing the overall test results. When it is completely dependent on the failure load =1, when completely dependent on the deformation =1.

[0033] The overall state coefficient of cement mortar specimen Compared with the overall state coefficient table range of cement mortar specimens set by the system, according to the overall state coefficient of cement mortar specimens The corresponding interval is used to evaluate the overall test results of the cement mortar specimens.

[0034] Through the above technical solution, this embodiment provides a method for analyzing the overall test results of cement mortar specimens. According to the failure load and potential failure coefficient at each stage of the flexural and compressive tests, the formula Calculate the overall state coefficient of the cement mortar specimen, and then Compared with the overall state coefficient table range of cement mortar specimens set by the system, according to the overall state coefficient of cement mortar specimens The corresponding interval is used to evaluate the overall test results of the cement mortar specimens.

[0035] It should be noted that the table range of the overall state coefficient of cement mortar specimens is an empirical value. Based on experience, the test results are evaluated into four levels: excellent, good, medium and poor. A value range is set for the overall state coefficient of cement mortar specimens of each level.

[0036] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An integrated equipment for automatic forming, curing and testing of cement mortar, comprising a raw material mixing module, a forming module, a curing module, a testing module and a control system, characterized in that: The raw material mixing module includes an automatic batching device, which can accurately weigh the raw materials according to the preset ratio and fully mix them through the stirring mechanism to ensure the uniformity of the cement mortar; The molding module is connected to the raw material mixing module, and includes an automated mold opening and closing mechanism and a vibration molding device. The mixed cement mortar enters the mold of the molding module through a conveying pipeline. The mold is automatically positioned and closed under the action of the automated mold opening and closing mechanism. The vibration molding device vibrates the cement mortar in the mold according to a set frequency and time to fill it densely, thereby completing the molding of the test piece; The curing module is connected to the forming module. The formed specimens directly enter the curing module through the conveying device. The curing module is equipped with a temperature and humidity control system, which can accurately control the temperature and humidity of the curing environment, simulate different curing conditions, and ensure that the specimens are cured under a standard environment. The test module is connected to the curing module. The test specimens after curing are automatically transported to the test module. The test module includes a compressive strength test device and a flexural strength test device, and records and analyzes the test data in real time and sends it to the control system; Control system: the entire device is centrally controlled by the control system. Operators can control each module through the operation interface and analyze and evaluate the data automatically sent by the test module.

2. A control method for cement mortar automatic forming, curing and testing integrated equipment, the method is implemented based on the cement mortar automatic forming, curing and testing integrated equipment according to claim 1, characterized in that: The method comprises the following steps: Step S1, raw material mixing: the operator inputs the required cement mortar mix ratio parameters on the operation interface of the control system, and the automatic batching device accurately weighs the corresponding amount of cement, sand and water from the cement storage bin, the sand storage bin and the water storage tank according to the parameters, and the weighed raw materials enter the stirring mechanism, and the stirring mechanism stirs according to the set stirring speed and time to fully mix the cement, sand and water to form cement mortar that meets the requirements; Step S2, molding step: the mixed cement mortar enters the mold of the molding module through the conveying pipeline, the mold is automatically positioned and closed under the action of the automated mold opening and closing mechanism, and the vibration molding device is started to vibrate the mold according to the preset frequency and time, so that the cement mortar is densely filled in the mold, and the molding of the test piece is completed; Step S3, curing step: the formed specimen directly enters the curing module through the conveying device, and the temperature and humidity control system in the curing module automatically adjusts the temperature and humidity in the curing room according to the set curing conditions; During the curing process, the temperature and humidity control system monitors the temperature and humidity of the curing environment in real time and automatically adjusts according to the monitoring data to ensure that the specimen is always in a standard curing environment; Step S4, test step: the cured specimen is transported to the test module by the transport device, and a compressive strength test and a flexural strength test are performed respectively. The test module transmits the test data to the control system in real time, and the control system evaluates the data.

3. The control method for cement mortar automatic forming, curing and testing integrated equipment according to claim 2 is characterized in that: The specific working process of step S4 includes: Step S41, taking out cement mortar specimens from the curing room, removing unqualified specimens, and numbering qualified specimens according to a pre-established numbering rule; Step S42, start the temperature control system of the test environment chamber, perform a flexural strength test on the qualified test piece, and transmit the data to the control system, which analyzes and evaluates the flexural test; Step S43, start the temperature control system of the test environment chamber, perform a compressive strength test on the qualified test pieces, and transmit the data to the control system, which analyzes and evaluates the compressive strength test data.

4. The control method for cement mortar automatic forming, curing and testing integrated equipment according to claim 3 is characterized in that: The specific working process of step S42 includes: According to the temperature change, the flexural strength test process is divided into n stages. The load is slowly applied at the set loading rate until the specimen breaks, and the flexural failure load at the time of fracture is automatically recorded. At the same time, the displacement sensor is used to monitor the first deformation of the specimen in real time to obtain the deformation curve of the first deformation over time in each stage. According to the flexural failure load at each stage and the deformation curve of the first deformation amount over time at each stage , analyze and evaluate the specimen flexural test process.

5. The control method for cement mortar automatic forming, curing and testing integrated equipment according to claim 4 is characterized in that: The specific process of analyzing and evaluating the specimen flexural test process includes: Compare the flexural failure load at fracture in each stage with the standard flexural failure load at fracture set by the system. If the flexural failure load at fracture in any stage is lower than the standard flexural failure load at fracture set by the system, it means that the flexural test result of the cement mortar specimen is unqualified. If the flexural failure load at fracture in any stage is not lower than the standard flexural failure load at fracture set by the system, the flexural test results of the cement mortar specimens are further analyzed.

6. The control method for cement mortar automatic forming, curing and testing integrated equipment according to claim 5 is characterized in that: The specific process of further analyzing the flexural test results of the cement mortar specimens includes: The calculation model of potential unqualified coefficient of flexural test results of cement mortar specimens is constructed, and the expression is: ； In the formula, is the potential failure coefficient of the flexural test results of cement mortar specimens, is the deformation curve of the first deformation amount over time in the i-th flexural test stage, is the standard curve of the first deformation amount versus time in the i-th flexural test stage, is the initial moment of the i-th anti-bending test stage, is the end time of the i-th anti-bending test stage, is the total first deformation under the i-th flexural test stage, is the weight coefficient corresponding to the i-th flexural test stage, i belongs to n; Potential failure coefficient of flexural test results of cement mortar specimens Compared with the set potential unqualified coefficient range of the flexural test results of cement mortar specimens, if the potential unqualified coefficient of the flexural test results of cement mortar specimens is If the set potential unqualified coefficient range of the flexural test results of the cement mortar specimens is not met, it means that the flexural test results of the cement mortar specimens are potentially unqualified.

7. The control method for cement mortar automatic forming, curing and testing integrated equipment according to claim 3 is characterized in that: The specific working process of step S43 includes: According to the temperature change, the compressive strength test process is divided into m stages. The load is slowly applied at the set loading rate until the specimen is destroyed, and the compressive failure load is automatically recorded. At the same time, the displacement sensor is used to monitor the first deformation of the specimen in real time, and the deformation curve of the second deformation over time in each stage is obtained. According to the compressive failure load at each stage and the deformation curve of the second deformation at each stage over time , analyze and evaluate the specimen compression test process.

8. The control method for cement mortar automatic forming, curing and testing integrated equipment according to claim 7, characterized in that: The specific process of analyzing and evaluating the specimen compression test process includes: Compare the compressive failure load at each stage of failure with the standard compressive failure load at failure set by the system. If the compressive failure load at any stage of failure is lower than the standard compressive failure load at failure set by the system, it means that the compression test result of the cement mortar specimen is unqualified. If the compressive failure load at the time of failure at any stage is not lower than the standard compressive failure load at the time of failure set by the system, the compressive test results of the cement mortar specimens are further analyzed.

9. The control method for cement mortar automatic forming, curing and testing integrated equipment according to claim 8, characterized in that: The specific process of further analyzing the compression test results of the cement mortar specimens includes: The potential unqualified coefficient calculation model of the compression test results of cement mortar specimens was constructed, and the expression is: ； In the formula, is the potential failure coefficient of the compression test results of cement mortar specimens, is the deformation curve of the second deformation over time in the jth compression test stage, is the standard curve of the second deformation over time in the jth compression test stage, is the initial moment of the jth stress test phase, is the end time of the jth stress test phase, is the total second deformation under the jth compression test stage, is the weight coefficient corresponding to the jth compression test stage, j belongs to m; Potential failure coefficient of compression test results of cement mortar specimens Compared with the set potential unqualified coefficient range of the compression test results of cement mortar specimens, if the potential unqualified coefficient of the compression test results of cement mortar specimens is If the set potential unqualified coefficient range of the compression test results of the cement mortar specimens is not met, it means that the compression test results of the cement mortar specimens are potentially unqualified.

10. The control method for cement mortar automatic forming, curing and testing integrated equipment according to any one of claims 3 to 9, characterized in that: The specific working process of step S4 also includes: Step S44, analyzing the overall test results of the cement mortar specimen; The calculation model of the overall state coefficient of cement mortar specimens is constructed, and the expression is: = + ； In the formula, is the overall state coefficient of the cement mortar specimen, is the flexural failure load at fracture in the i-th flexural test stage, is the standard flexural failure load at fracture set by the system in the i-th flexural test stage, is the compressive failure load at the time of failure in the jth compression test stage, is the compressive failure standard load set for the system at the time of failure in the jth compressive test stage, The potential unqualified coefficient range of the flexural test results of cement mortar specimens set by the system, The potential unqualified coefficient range of the compression test results of cement mortar specimens set by the system, and are weight coefficients respectively; The overall state coefficient of cement mortar specimen Compared with the overall state coefficient table range of cement mortar specimens set by the system, according to the overall state coefficient of cement mortar specimens The corresponding interval is used to evaluate the overall test results of the cement mortar specimens.

Images