A multi-station intelligent integrated vicat apparatus and a determination method using the same

Abstract

The present application relates to a kind of multi-station intelligent integrated vicat apparatus and the determination method using it, two groups of test components are installed on main support frame;Each group of test components includes test drive component, guide cylinder, weight and weight drive component;Test drive component has the moving platform of linear translation along horizontal direction, guide cylinder is vertically arranged and its top end is fixed with the lower end surface of moving platform and its outer wall is installed with displacement sensor;Rotary disc component has the rotary disc of horizontal arrangement and its upper end surface is arranged with multiple test films;Rotary drive component is transmission connection with rotary disc component and drives rotary disc rotation;The weight bottom end of two groups of test components is respectively detachably connected with initial setting needle and final setting needle, weight can free fall and drop, and initial setting needle and final setting needle can be inserted in corresponding test film.The present application can determine the initial setting or final setting time of multiple test films, and detection efficiency is high, degree of automation is high, and it is convenient to use.

Description

Technical Field

[0001] This invention relates to the field of Vicat apparatus technology, and in particular to a multi-position intelligent integrated Vicat apparatus and a measurement method using the same. Background Technology

[0002] A Vicat apparatus is a testing instrument used in the cement and concrete industry, primarily for detecting the setting time of cement paste, including initial and final setting times. Traditional national standard Vicat apparatuses include manual and intelligent types. Manual Vicat apparatuses require manual operation and observation, making them cumbersome to use. Intelligent Vicat apparatuses automate the testing process, but most can only measure either the initial or final setting time, requiring the replacement of the initial or final setting needle for separate measurements, resulting in relatively low efficiency.

[0003] In practical applications of Vicat apparatus, it is sometimes necessary to measure the initial and final setting times of multiple molds. Existing technologies, such as the utility model patent with patent number CN211374416U, disclose a Vicat apparatus for measuring the initial and final setting times of multiple molds at one time. It consists of two supports and three individual Vicat apparatuses. The supports are connected to the three individual Vicat apparatuses through a clamping connection device. It is equipped with three conical molds, which can be placed for testing at one time, greatly accelerating the testing efficiency. However, it arranges the three individual Vicat apparatuses and three conical molds in a one-to-one correspondence. It simply sets up three existing individual Vicat apparatuses and conical molds in parallel. Neither the individual Vicat apparatuses nor the conical molds can be moved. If the number of conical molds continues to increase, the number of individual Vicat apparatuses can only be increased for corresponding testing, which has the disadvantage of being inconvenient to use.

[0004] For example, utility model patent CN206601390U discloses a high-precision intelligent Vicat apparatus. It uses a linear displacement sensor to detect the downward displacement of the sliding rod during testing, calculates the distance from the base plate, and then displays the result directly on a monitor, avoiding errors caused by pointer-type readings. It is also equipped with a contact indicator circuit, which controls the contact indicator light to illuminate when the test needle contacts the cement paste, prompting the operator and avoiding errors caused by visually observing the test starting point. However, firstly, it can only measure the initial setting time or the final setting time separately, requiring the initial setting needle or the final setting needle to be replaced; secondly, it can only test one mold, and the testing efficiency for multiple molds is still relatively low.

[0005] Therefore, how to provide a multi-position intelligent integrated Vicat instrument that can determine the initial or final setting time of multiple molds, improve detection efficiency, and is easy to use, as well as the measurement method using it, is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a multi-position intelligent integrated Vicat apparatus and a measurement method using it, which can measure the initial or final setting time of multiple molds, and has high detection efficiency, high degree of automation and is easy to use.

[0007] The technical solution of the present invention to solve the above-mentioned technical problems is as follows:

[0008] A multi-position intelligent integrated Vicat apparatus includes a main support frame, testing components, a rotating mold assembly, a primary setting needle, and a final setting needle. Two sets of the testing components are mounted on the main support frame. Each set of testing components includes a test drive assembly, a guide cylinder, a weight, and a weight drive assembly. The test drive assembly has a horizontally oriented linearly moving platform. The guide cylinder is vertically arranged with its top end fixed to the lower surface of the moving platform, and a displacement sensor is installed on its outer wall. The weight is slidably connected inside the guide cylinder. The weight drive assembly... The weight is driven to slide freely in the vertical direction within the guide cylinder; the rotating mold assembly corresponds to the lower part of the guide cylinder and includes a rotating drive assembly, a turntable assembly, and multiple molds; the turntable assembly has a horizontally arranged turntable with multiple molds arranged on its upper surface; the rotating drive assembly is connected to the turntable assembly and drives the turntable to rotate; the bottom ends of the weights in the two sets of test assemblies are detachably connected to the initial solidification needle and the final solidification needle, and both the initial solidification needle and the final solidification needle can be inserted into the corresponding mold.

[0009] The beneficial effects of this invention are as follows: Two sets of testing components are used to determine the initial or final setting time. The translational movement of the moving platform drives the guide cylinder, weight, and initial or final setting needle to achieve translation. Simultaneously, the rotating mold assembly drives multiple molds to perform circular motion, and the rotation drive assembly drives the turntable of the turntable assembly to rotate. Thus, through the translational movement of the two moving platforms and the rotation of the turntable, the initial and final setting needles can be aligned with any mold for insertion. The guide cylinder guides the weight, and the weight drive assembly moves the weight up and down within the guide cylinder to determine the initial or final setting time. The displacement sensor measures the displacement value of the weight. In other words, the entire device can determine the initial and final setting times of multiple molds, enabling multi-position detection of multiple molds. Furthermore, the driving and control of the testing drive assembly, rotation drive assembly, weight drive assembly, and displacement sensor enable fully automated control and detection throughout the entire process, resulting in a high degree of automation, high detection efficiency, and ease of use.

[0010] Based on the above technical solution, the present invention can be further improved as follows.

[0011] Furthermore, the test drive assembly includes a fixed platform, a linear guide rail, a ball screw, a ball screw motor, and the moving platform; one side of the fixed platform is fixedly connected to the supporting crossbeam, and the other side of the platform is equipped with the parallel linear guide rail and the ball screw; the output shaft of the ball screw motor is drivenly connected to one end of the ball screw, a first slider is sleeved on and drivenly connected to the ball screw, and a second slider is slidably connected to the linear guide rail; one side of the moving platform is fixedly connected to the first slider and the second slider and moves linearly in the horizontal direction.

[0012] The beneficial effects of adopting the above-mentioned further solution are: the ball screw motor drives the ball screw to rotate, and the ball screw and the first slider sleeved on it transmit the rotary motion into linear motion; and the fixed platform protrudes at the position where the linear guide rail is installed to facilitate the fixing and installation of the linear guide rail, while ensuring that the second slider of the linear guide rail and the first slider of the ball screw are on the same horizontal plane.

[0013] Furthermore, the load driving assembly includes a load motor, a pulley, and a steel wire rope; the output shaft of the load motor is sleeved and fixedly connected to the pulley, the pulley has a groove on its outer periphery and the steel wire rope is wound around it, one end of the steel wire rope is fixedly connected to the top of the load and drives the load to slide freely in the vertical direction within the guide cylinder.

[0014] The beneficial effects of adopting the above-mentioned further scheme are: the weight is pulled vertically in space by steel wire rope, the guide cylinder ensures that the weight moves vertically inside it; and the weight motor is connected to the weight by pulleys and steel wire rope, so that when the weight motor suddenly accelerates, the weight can fall freely, thereby measuring the initial setting and final setting times.

[0015] Furthermore, the turntable assembly includes a fixed plate, a flange, a stepped spindle, and the turntable; both the fixed plate and the flange are horizontally arranged and have a shaft hole in the middle along the vertical direction; the stepped spindle is vertically arranged and its lower part is rotatably connected to the shaft hole of the fixed plate, and its upper part is sleeved with the shaft hole of the flange and keyed; the turntable is fixed to the upper end face of the flange; the rotation drive assembly is drively connected to the stepped spindle.

[0016] The beneficial effects of adopting the above-mentioned further solution are: the stepped shaft is rotatably connected to the shaft hole of the fixed plate through the bearing, and its side wall has a support step protruding radially. The upper part of the stepped shaft is keyed to the flange to drive the flange to rotate. The support step is used to support the flange. The flange is bolted to the turntable to drive the turntable to rotate, thereby controlling the multiple placed test molds to perform circular motion.

[0017] Furthermore, the rotary drive assembly includes a turntable motor and a reducer, wherein the output shaft of the turntable motor is connected to the input end of the reducer, and the output end of the reducer is connected to the stepped main shaft.

[0018] The beneficial effect of adopting the above-mentioned further solution is that the bottom center of the stepped spindle is recessed and formed with a shaft hole, and the output end of the reducer is inserted into the shaft hole of the stepped spindle to realize the transmission connection.

[0019] Furthermore, the rotating mold assembly also includes a mold cover and a temperature and humidity control device; the mold cover has an internal cavity and covers the outside of the turntable and multiple molds, and its top end has two elongated test holes corresponding to the movement trajectory of the moving platforms of the two sets of test components; the initial setting needle and the final setting needle can both pass through the corresponding test holes and be inserted into the corresponding mold; the temperature and humidity control device is connected to the inside of the mold cover.

[0020] The beneficial effects of adopting the above-mentioned further solution are: the test mold cover encapsulates multiple test molds, and the temperature and humidity control device controls the temperature and humidity inside the test mold cover. Through the test mold cover and the temperature and humidity control device, the test film can always be kept under the specified temperature and humidity conditions during the testing process, thus ensuring the accuracy of the test results.

[0021] Furthermore, the displacement sensor is a capacitive displacement sensor and includes a fixed grid plate and a moving grid plate; two grooved guide rings are sleeved on the outer wall of the guide cylinder, arranged at intervals along the vertical direction, and the two ends of the fixed grid plate are respectively adapted and engaged with the grooves of the two guide rings; an elongated sliding hole is opened on the side wall of the guide cylinder along the vertical direction; the outer wall of the weight has a protrusion extending out of the sliding hole; the protrusion is fixedly connected to the moving grid plate.

[0022] The beneficial effects of adopting the above-mentioned further solution are: a displacement sensor is fixed on one side of the guide cylinder with a sliding hole, which is used to directly detect the descent distance of the weight, thereby indirectly reflecting the descent distance of the initial or final solidification needle. During the descent of the weight, the displacement value of the weight in the vertical direction is measured by the change in capacitance between the fixed grid and the moving grid of the capacitive grating sensor. The structure and principle of the capacitive grating sensor refer to known technologies.

[0023] Furthermore, the moving direction of the moving platforms of both sets of test components is through the rotation center axis of the turntable.

[0024] The beneficial effects of adopting the above-mentioned further scheme are: the movement directions of the moving platforms do not interfere with each other and all correspond to the center of the turntable. When the turntable is circular, the movement direction of the moving platform corresponds to the radial direction of the circular turntable. Thus, by translating the moving platform and rotating the turntable, the initial setting needle and the final setting needle can be aligned with any mold for measurement.

[0025] Furthermore, the main support frame includes a base, a side bracket, a support beam, and a flange elbow; the bottom end of the side bracket is fixed to one side of the base perpendicularly; the support beam is above the base and one side of the support beam is fixed to the flange elbow between it and the top end of the side bracket; a set of the test components is installed on the upper and lower ends of the support beam.

[0026] The beneficial effect of adopting the above-mentioned further scheme is that the mechanical structure principles of the two sets of test components installed on the upper and lower end faces of the support beam are similar. The test drive component of one set of test components is installed on the upper end face of the support beam, and the test drive component of the other set of test components is suspended upside down on the lower end face of the support beam.

[0027] This invention also discloses a method for measuring the above-mentioned multi-position intelligent integrated Vicat apparatus, including the determination of initial setting time and final setting time, comprising the following steps:

[0028] S1: Control the moving platform of the test drive component of the two sets of test components to move in a straight line in the horizontal direction, and at the same time control the rotation drive component to drive the turntable of the turntable component to rotate around its central axis; align the initial setting time of the weight at the bottom of one set of test components with a test mold; or align the final setting time of the weight at the bottom of the other set of test components with a test mold.

[0029] S2: Control the weight drive assembly to slowly lower the weight vertically inside the guide cylinder. When the tip of the initial solidification needle or the final solidification needle reaches a distance of X above the corresponding mold, set the corresponding displacement sensor to zero.

[0030] S3: Continue to control the weight drive assembly to slowly lower the weight. When the tip of the initial setting needle or the final setting needle contacts the surface of the sample in the corresponding mold, an electrical signal is fed back to the corresponding weight motor, the weight motor stops, and the displacement value of the displacement sensor corresponding to the initial setting needle is recorded as a; or the displacement value of the displacement sensor corresponding to the final setting needle is recorded as b.

[0031] S4: Then suddenly apply an acceleration to the load motor to make the load fall freely. When the displacement sensor value stops changing, record the displacement value of the displacement sensor corresponding to the initial setting needle as c; or record the displacement value of the displacement sensor corresponding to the final setting needle as d. Control the load motor to pull up the load, thus completing one measurement of the initial setting time or final setting time of a test mold.

[0032] S5: After the measurement of a mold is completed, the relative position of the moving platform and the turntable needs to be adjusted appropriately for the next measurement so that different points on the mold can be measured; and during the time interval between two measurements of a mold, the initial setting time or final setting time of the remaining molds on the turntable is measured according to steps S1-S4.

[0033] S6: Record the value c of each measurement of the same mold, measure the height of the sample inside the mold as L, and when the value of "L+Xc" is 4mm±1mm, the mold reaches the initial setting state and the initial setting time of the mold is completed.

[0034] Alternatively, record the values ​​b and d measured for each test mold; when the value of "db" is less than 0.5 mm, the test mold has reached the final setting state, and the final setting time of the test mold is determined.

[0035] The beneficial effects of using the above-described method are as follows: the Vicat apparatus of the present invention can measure the initial and final setting times of multiple molds, avoiding frequent replacement of initial or final setting needles, thus achieving high detection efficiency; and when measuring the initial or final setting time of the same mold, by finely adjusting the translation angle of the moving platform and the rotation angle of the turntable, different points within the mold can be measured; the entire process is automated through the control feedback of the test drive component, the rotation drive component, the weight drive component, and the displacement sensor; for the calculation of measurement results, with a certain height X above the mold as the zero point of the displacement sensor, the displacement of the cement surface in contact with the mold sample and the displacement of the initial or final setting needle inserted into the mold are measured respectively, resulting in more accurate measurement results.

[0036] Compared with the prior art, the beneficial effects of the present invention, based on the above technical solution, are as follows:

[0037] (1) The present invention installs a primary setting needle and a final setting needle on two sets of test components respectively. The moving platform of each set of test components can move horizontally in a straight line. The moving platform drives the guide cylinder to move horizontally. The weight motor, pulley and wire rope drive the weight to move up and down vertically. Thus, the primary setting needle and the final setting needle can move horizontally and vertically freely. When the weight motor suddenly accelerates, the weight can fall freely. The rotation drive component can drive the turntable to rotate. Thus, through the rotation of the turntable and the horizontal movement of the primary setting needle and the final setting needle, the primary setting needle and the final setting needle can be aimed at any position of any mold. Thus, the detection of the primary setting or final setting time of multiple molds can be realized, that is, multi-position detection with high detection efficiency. In order to ensure that the primary setting needle and the final setting needle can correspond to multiple molds, the moving direction of the two moving platforms passes through the center of the circular turntable.

[0038] (2) This invention uses a ball screw motor to achieve translation of the moving platform, a load motor to achieve lifting and lowering of the load, a turntable motor to achieve rotation of the turntable, and a displacement sensor to measure the displacement value of the load. Thus, through the control feedback of the ball screw motor, load motor, turntable motor, and displacement sensor, the entire process can be automated. The touch screen facilitates human-machine interaction. Furthermore, encoders are installed on the ball screw motor, load motor, and turntable motor to achieve accurate control and feedback of the rotation speed and angle of their output shafts. In addition, the mold cover and temperature and humidity control device can ensure that the mold is in the specified temperature and humidity environment during the testing process. The fully automatic control avoids human error and testing error, making the test results more accurate. Attached Figure Description

[0039] Figure 1 This is a three-dimensional structural diagram of the multi-position intelligent integrated Vicat instrument of the present invention;

[0040] Figure 2 This is a three-dimensional structural diagram of the testing components of the multi-position intelligent integrated Vicat instrument of the present invention;

[0041] Figure 3 This is a front view of the multi-position intelligent integrated Vicat instrument of the present invention;

[0042] Figure 4 This is a side view of the multi-position intelligent integrated Vicat instrument of the present invention;

[0043] Figure 5 This is a top view of the multi-position intelligent integrated Vicat instrument of the present invention;

[0044] Figure 6 This is a schematic diagram showing the connection between the test mold cover and the temperature and humidity control device of the multi-position intelligent integrated Vicat instrument of the present invention;

[0045] Figure 7 This is a schematic diagram of the turntable assembly of the multi-position intelligent integrated Vicat apparatus of the present invention;

[0046] Figure 8 This is a cross-sectional view of the turntable assembly of the multi-position intelligent integrated Vicat apparatus of the present invention;

[0047] Figure 9 This is a schematic diagram of the main support frame and the second drive component of the multi-position intelligent integrated Vicat instrument of the present invention.

[0048] The attached diagram lists the components represented by each number as follows:

[0049] 1-Main support frame; 2-Test assembly; 3-Rotating mold assembly; 4-Initial setting needle; 5-Final setting needle; 6-Touch display screen; 7-Positioning ring; 8-Deep groove ball bearing; 9-Flat thrust bearing; 11-Base; 12-Side bracket; 13-Support beam; 14-Base bracket; 15-Flange elbow; 21-Guide cylinder; 22-Weight; 23-Moving platform; 24-Weight motor; 25-Displacement sensor; 26-Fixed platform; 27-Linear guide rail; 28-Ball screw; 29-Ball screw motor; 31-Mold; 32-Turntable; 33-Fixed plate; 34-Flange; 35-Stepped spindle; 36-Turntable motor; 37-Reducer; 38-Mold cover; 39-Temperature and humidity control device; 381-Test hole. Detailed Implementation

[0050] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0051] like Figures 1 to 9 As shown in the figure, this invention discloses a multi-position intelligent integrated Vicat apparatus, including a main support frame 1, a testing assembly 2, a rotating mold assembly 3, a primary setting needle 4, and a final setting needle 5; two sets of testing assemblies 2 are installed on the main support frame 1; each set of testing assemblies 2 includes a testing drive assembly, a guide cylinder 21, a weight 22, and a weight drive assembly; the testing drive assembly has a moving platform 23 that moves linearly in the horizontal direction, the guide cylinder 21 is vertically arranged and its top end is fixed to the lower end face of the moving platform 23, and a displacement sensor 25 is installed on its outer wall, and the weight 22 is slidably connected to the guide cylinder 21. Inside the guide tube 21, the weight drive assembly drives the weight 22 to slide freely vertically within the guide tube 21. The rotating mold assembly 3, located below the guide tube 21, includes a rotating drive assembly, a turntable assembly, and multiple molds 31. The turntable assembly has a horizontally arranged turntable 32 with multiple molds 31 arranged on its upper surface. The rotating drive assembly is connected to the turntable assembly and drives the turntable 32 to rotate. The bottom ends of the weights 22 in both test assemblies 2 are detachably connected to the initial setting needle 4 and the final setting needle 5, respectively, and both the initial setting needle 4 and the final setting needle 5 can be inserted into the corresponding mold 31. The weight 22 can fall freely, and the final setting needle 5 is equipped with an annular attachment. The weight 22, including the initial setting needle 4 and the final setting needle 5, weighs approximately 300g ± 1g.

[0052] To further optimize the above technical solutions, such as Figure 2As shown, the test drive assembly includes a fixed platform 26, a linear guide rail 27, a ball screw 28, a ball screw motor 29, and a moving platform 23. One side of the fixed platform 26 is fixedly connected to the support beam 13, and the other side of the platform is equipped with parallel linear guide rails 27 and ball screw 28. The output shaft of the ball screw motor 29 is drivenly connected to one end of the ball screw 28. A first slider is sleeved on the ball screw 28 and drivenly connected to it. A second slider is slidably connected to the linear guide rail 27. One side of the moving platform 23 is fixedly connected to the first slider and the second slider and moves linearly in the horizontal direction.

[0053] To further optimize the above technical solutions, such as Figure 2 As shown, the load driving assembly includes a load motor 24, a pulley, and a steel wire rope; the output shaft of the load motor 24 is fitted with a pulley, the pulley has a groove on its outer circumference and a steel wire rope is wound around it, one end of the steel wire rope is fixed to the top of the load 22 and drives the load 22 to slide freely in the vertical direction inside the guide cylinder 21.

[0054] To further optimize the above technical solutions, such as Figure 8 As shown, the turntable assembly includes a fixed plate 33, a flange 34, a stepped spindle 35, and a turntable 32; both the fixed plate 33 and the flange 34 are horizontally arranged and have shaft holes in the middle along the vertical direction; the stepped spindle 35 is vertically arranged and its lower part is rotatably connected to the shaft hole of the fixed plate 33, and its upper part is sleeved with the shaft hole of the flange 34 and keyed; the turntable 32 is fixed to the upper end face of the flange 34; the rotation drive assembly is connected to the stepped spindle 35 for transmission.

[0055] To further optimize the above technical solutions, such as Figure 9 As shown, the rotary drive assembly includes a turntable motor 36 and a reducer 37. The output shaft of the turntable motor 36 is connected to the input end of the reducer 37, and the output end of the reducer 37 is connected to the stepped main shaft 35. The bottom center of the stepped main shaft 35 has a recessed shaft hole, and the output end of the reducer 37 is connected to this shaft hole. The reducer 37 is a planetary reducer.

[0056] To further optimize the above technical solutions, such as Figure 6 As shown, the rotating mold assembly 3 also includes a mold cover 38 and a temperature and humidity control device 39; the mold cover 38 has a cavity inside and covers the outside of the turntable 32 and multiple molds 32, and its top has two long strip-shaped test holes 381 corresponding to the movement trajectory of the moving platform 23 of the two sets of test assemblies 2; the initial solidification needle 4 and the final solidification needle 5 can both pass through the corresponding test holes 381 and be inserted into the corresponding mold 31; the temperature and humidity control device 39 is connected to the inside of the mold cover 38.

[0057] To further optimize the above technical solutions, such as Figure 4As shown, the displacement sensor 25 is a capacitive displacement sensor and includes a fixed grid plate and a moving grid plate; two grooved guide rings 7 arranged vertically at intervals are fitted on the outer wall of the guide cylinder 21, and the two ends of the fixed grid plate are respectively fitted and engaged with the grooves of the two guide rings 7; an elongated sliding hole is opened on the side wall of the guide cylinder 21 in the vertical direction; the outer wall of the weight 22 has a protrusion extending out of the sliding hole; the protrusion is fixedly connected to the moving grid plate. The protrusion is threadedly fixed to the moving grid plate, and the fixing plate is fixed to the outer wall of the guide cylinder by threaded locking and annular friction.

[0058] To further optimize the above technical solution, the moving directions of the moving platforms 23 of both sets of test components 2 are both through the rotation center axis of the turntable 32. In a specific embodiment, the moving directions of the moving platforms 23 of the two sets of test components 2 are arranged at an angle.

[0059] To further optimize the above technical solutions, such as Figure 9 As shown, the main support frame 1 includes a base 11, a side support 12, a support beam 13, and a flange elbow 15. The bottom end of the side support 12 is fixed to one side of the base 11 perpendicularly. The support beam 13 is located above the base 11, and a flange elbow 15 is fixed between one end of the support beam 13 and the top end of the side support 12. A set of test components 2 is installed on the upper and lower ends of the support beam 13. There are two side supports 12 and two support beams 13, and the two support beams 13 are arranged at an angle. The bending angle of the flange elbow 15 is 90°.

[0060] To further optimize the above technical solutions, such as Figure 8 As shown, the outer wall of the stepped main shaft 35 has a support step protruding radially. A deep groove ball bearing 8 is installed between the lower part of the inner wall of the shaft hole of the fixing plate 33 and the outer wall of the stepped main shaft 35, and a flat thrust bearing 9 is installed between the upper part of its inner wall and the support step of the stepped main shaft 35. The bottom end of the flange 34 has a groove and is adapted to the support step for snap-fit ​​support.

[0061] To further optimize the above technical solutions, such as Figure 7 and Figure 8 As shown, the test mold 31 has a hollow frustum structure. The bottom of the large diameter end of the test mold 31 has an integrally formed cylindrical snap-fit ​​part with the same diameter as it. The upper end face of the turntable 32 has a positioning groove recessed in the position corresponding to the test mold 31. A through hole is opened in the middle of the bottom of the positioning groove. The outer wall of the snap-fit ​​part is adapted to snap-fit ​​with the positioning groove, and a glass plate is snap-fitted and embedded in its inner wall.

[0062] To further optimize the above technical solutions, such as Figure 2As shown, the multi-position intelligent integrated Vicat instrument also includes a control system and a touch screen 6. Both the control system and the touch screen 6 are mounted on the support beam 13. The load motor 24, the ball screw motor 28, the turntable motor 36 and the displacement sensor 25 are all equipped with encoders and are all electrically connected to the control system.

[0063] This invention also discloses a method for determining the initial and final setting times using the above-mentioned multi-position intelligent integrated Vicat method, including a method for determining the initial setting time and a method for determining the final setting time.

[0064] I. The method for determining the initial setting time includes the following steps:

[0065] Step 1: Install the initial setting needle 4 at the bottom of the weight 22 of a set of test components 2, control the ball screw motor 29 to rotate, the moving platform 23 to move linearly in the horizontal direction, and at the same time control the turntable 32 to rotate around its central axis, and align the initial setting needle 4 with a test mold 31 to determine the initial setting time.

[0066] Step 2: Control the weight motor 24 to drive the weight 22 to slowly lower it vertically inside the guide cylinder 21. When the distance value of the initial solidification needle 4 reaching the top of the test mold 31 is X, set the displacement sensor 25 to zero; the preferred value of X is 5mm.

[0067] Step 3: Continue to control the weight motor 24 to slowly lower the weight 22. When the tip of the initial coagulation needle 4 contacts the sample surface inside the mold 31, an electrical signal is fed back to the weight motor 24, the weight motor 24 stops, and the displacement value a of the displacement sensor 25 corresponding to the initial coagulation needle 4 is recorded.

[0068] Step 4: Then suddenly apply an acceleration to the weight motor 24 to make the weight 22 fall freely. When the displacement sensor 25 no longer changes its value, record the displacement value c of the displacement sensor 25 corresponding to the initial setting needle 4. Control the weight motor 24 to pull up the weight 22, and complete one measurement of the initial setting time of the mold 31.

[0069] Step 5: After the measurement of a mold 31 is completed, the relative position of the moving platform 23 and the turntable 32 needs to be adjusted appropriately for the next measurement so that different points on the mold 31 can be measured; and during the time interval between two measurements of a mold 31, the initial setting time of the remaining molds 31 on the turntable 32 is measured according to steps one to four.

[0070] Step 6: Record the values ​​a and c of the same mold 31 each time. Measure the height of the sample inside the mold 31 as L. When the value of "L+Xc" is 4mm±1mm, the mold 31 has reached the initial setting state, and the initial setting time of the mold 31 is completed.

[0071] II. The method for determining the final setting time includes the following steps:

[0072] Step 1: Install the final setting needle 5 at the bottom of the weight 22 of another set of test components 2, control the ball screw motor 29 to rotate, the moving platform 23 to move linearly in the horizontal direction, and at the same time control the turntable 32 to rotate around its central axis, and align the final setting needle 5 with a test mold 31 to determine the final setting time.

[0073] Step 2: Control the weight motor 24 to drive the weight 22 to slowly lower it vertically inside the guide cylinder 21. When the distance value of the final solidification needle 5 above the test mold 31 is X, set the displacement sensor 25 to zero; the preferred value of X is 5mm.

[0074] Step 3: Continue to control the weight motor 24 to slowly lower the weight 22. When the tip of the final solidification needle 5 contacts the sample surface inside the mold 31, an electrical signal is fed back to the weight motor 24, the weight motor 24 stops, and the displacement value of the displacement sensor 25 corresponding to the final solidification needle 5 is recorded as b.

[0075] Step 4: Then suddenly apply an acceleration to the weight motor 24 to make the weight 22 fall freely. When the displacement sensor 25 no longer changes its value, record the displacement value d of the displacement sensor 25 corresponding to the final setting needle 5. Control the weight motor 24 to pull up the weight 22, and complete one measurement of the final setting time of the mold 31.

[0076] Step 5: After the measurement of a test mold 31 is completed, the relative position of the moving platform 23 and the turntable 32 needs to be adjusted appropriately for the next measurement so that different points on the test mold 31 can be measured; and during the time interval between two measurements of a test mold 31, the final setting time of the remaining test molds 31 on the turntable 32 is measured according to steps one to four.

[0077] Step 6: Record the values ​​b and d measured at different points on the same mold 31; when the value of "db" is less than 0.5 mm, the mold 31 has reached the final setting state, and the final setting time of the mold 31 is determined.

[0078] During installation, the multi-position intelligent integrated Vicat apparatus of the present invention has a set of test components 2 mounted on the upper surface of the supporting beam 13. The fixed platform 26 of the test components 2 is bolted to the upper surface of the supporting beam 13. Parallel linear guides 27 and ball screws 28 are mounted on the upper surface of the fixed platform 26. The two ends of the ball screw 28 are rotatably connected to the bracket along its length. The output shaft of the ball screw motor 29 is connected to one end of the ball screw 28 for transmission. A protrusion is fixed to the bottom of the linear guide 27 to ensure that the top of the second slider of the linear guide 27 and the top of the first slider of the ball screw 28 are on the same horizontal plane. [The last sentence appears to be incomplete and requires further context.] A weight motor 24 is fixed to the top of the platform 23 and a guide cylinder 21 is fixed to the bottom. The guide cylinder 21 passes through the fixed platform 26 and the supporting beam 13 and extends vertically downward. A weight 22 is installed inside the guide cylinder 21. A long sliding hole is opened on the side wall of the guide cylinder 21 and a displacement sensor 25 is installed at the corresponding position of the sliding hole. The protrusion of the outer wall of the weight 22 extends out of the sliding hole and connects to the displacement sensor 25. A pulley is installed on the output shaft of the weight motor 24. A steel wire rope is wound in the groove of the pulley. One end of the steel wire rope is fixed to the weight 22, which drives the weight 22 to rise and fall in the vertical direction. The bottom of the weight 22 of this test component 2 is threadedly connected to the initial coagulation needle 4.

[0079] Another set of test components 2 is installed on the lower end face of the supporting beam 13. The fixed platform 26 of this set of test components 2 is fixed to the lower end face of the supporting beam 13 by bolts. Parallel linear guide rails 27 and ball screws 28 are installed on the lower end face of the fixed platform 26. A motor plate is fixed to the lower end face of the moving platform 23. A weight motor 24 is installed on the motor plate. The top of the guide cylinder 21 is fixed to the lower end face of the moving platform 23 through an L-shaped connecting plate. The steel wire rope at the output end of the weight motor 24 passes through the L-shaped connecting plate and is fixed to the top of the weight 22. The bottom end of the weight 22 of this set of test components 2 is threadedly connected to the final solidification needle 5.

[0080] A base bracket 14 is installed on the upper surface of the base 11. The fixing plate 33 of the rotating mold assembly 3 is fixedly connected to the upper surface of the base bracket 14. A deep groove ball bearing 8 is installed between the lower part of the inner wall of the shaft hole of the fixing plate 33 and the stepped main shaft 35, and a flat thrust bearing 9 is installed on the upper part of its inner wall. The upper part of the stepped main shaft 35 is keyed to the shaft hole of the flange 34. The bottom end of the flange 34 is recessed and formed with an assembly groove. The upper part of the outer wall of the stepped main shaft 35 has a protruding support step and is located in the assembly groove of the flange 34. The lower end cover of the flat thrust bearing 9 is interference-fitted with the fixing plate 33, and its upper end cover is interference-fitted with the assembly groove of the flange 34.

[0081] The central shaft hole of the turntable 32 is fitted onto the stepped main shaft 35, and its lower end face is fastened to the upper end face of the flange 34 by bolts; the output end of the reducer 37 passes through the base bracket 14 and is connected to the stepped main shaft 35 for transmission; multiple test molds 31 are arranged in a circle and divided into inner and outer rings and installed on the upper end face of the turntable 32; in a specific embodiment, the number of test molds 31 is 12; the test mold cover 38 is covered on the outside of the turntable 32 and the test molds 31, and its top end has two vertical test holes 381, which correspond to the translational trajectories of the two moving platforms 23 respectively.

[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-position intelligent integrated Vicat apparatus, characterized in that, It includes a main support frame (1), a test assembly (2), a rotating mold assembly (3), a primary setting needle (4), and a final setting needle (5); Two sets of test components (2) are installed on the main support frame (1); each set of test components (2) includes a test drive component, a guide cylinder (21), a weight (22) and a weight drive component; the test drive component has a moving platform (23) that moves linearly in the horizontal direction, the guide cylinder (21) is arranged vertically and its top end is fixed to the lower end face of the moving platform (23) and a displacement sensor (25) is installed on its outer wall, the weight (22) is slidably connected inside the guide cylinder (21), and the weight drive component drives the weight (22) to slide freely in the vertical direction inside the guide cylinder (21); The rotating mold assembly (3) is located below the guide cylinder (21) and includes a rotating drive assembly, a turntable assembly and multiple molds (31); the turntable assembly has a horizontally arranged turntable (32) and multiple molds (31) are arranged on its upper surface; the rotating drive assembly is connected to the turntable assembly and drives the turntable (32) to rotate; The bottom ends of the weights (22) of the two sets of test components (2) are detachably connected to the initial coagulation needle (4) and the final coagulation needle (5), and the initial coagulation needle (4) and the final coagulation needle (5) can be inserted into the corresponding test mold (31) in a vertically movable manner. The main support frame (1) includes a support beam (13), and a set of the test components (2) are installed on the upper and lower ends of the support beam (13); The test drive assembly includes a fixed platform (26), a linear guide rail (27), a ball screw (28), a ball screw motor (29), and a moving platform (23). One side of the fixed platform (26) is fixedly connected to the support beam (13), and the other side of the platform is equipped with the parallel linear guide rail (27) and the ball screw (28). The output shaft of the ball screw motor (29) is drivenly connected to one end of the ball screw (28). A first slider is sleeved on the ball screw (28) and drivenly connected to it. A second slider is slidably connected to the linear guide rail (27). One side of the moving platform (23) is fixedly connected to the first slider and the second slider and moves linearly in the horizontal direction. The rotating mold assembly (3) also includes a mold cover (38) and a temperature and humidity control device (39); the mold cover (38) has a cavity inside and covers the outside of the turntable (32) and multiple molds (31), and its top end has two long strip-shaped test holes (381) corresponding to the movement trajectory of the moving platform (23) of the two sets of test assemblies (2); the initial solidification needle (4) and the final solidification needle (5) can both pass through the corresponding test holes (381) and be inserted into the corresponding mold (31); the temperature and humidity control device (39) is connected to the inside of the mold cover (38); The moving direction of the moving platform (23) of both sets of test components (2) is through the rotation center axis of the turntable (32).

2. The multi-position intelligent integrated Vicat apparatus according to claim 1, characterized in that, The load driving assembly includes a load motor (24), a pulley, and a steel wire rope; the output shaft of the load motor (24) is sleeved and fixedly connected to the pulley, the pulley has a groove on its outer periphery and the steel wire rope is wound around it, one end of the steel wire rope is fixedly connected to the top of the load (22) and drives the load (22) to slide freely in the vertical direction inside the guide cylinder (21).

3. The multi-position intelligent integrated Vicat apparatus according to claim 1, characterized in that, The turntable assembly includes a fixed plate (33), a flange (34), a stepped spindle (35), and the turntable (32); the fixed plate (33) and the flange (34) are both horizontally arranged and have a shaft hole in the middle along the vertical direction; the stepped spindle (35) is vertically arranged and its lower part is rotatably connected to the shaft hole of the fixed plate (33), and its upper part is sleeved with the shaft hole of the flange (34) and keyed; the turntable (32) is fixed to the upper end face of the flange (34); the rotation drive assembly is connected to the stepped spindle (35) for transmission.

4. The multi-position intelligent integrated Vicat apparatus according to claim 3, characterized in that, The rotary drive assembly includes a turntable motor (36) and a reducer (37). The output shaft of the turntable motor (36) is connected to the input end of the reducer (37), and the output end of the reducer (37) is connected to the stepped main shaft (35).

5. The multi-position intelligent integrated Vicat apparatus according to claim 1, characterized in that, The displacement sensor (25) is a capacitive displacement sensor and includes a fixed grid plate and a moving grid plate; the outer wall of the guide cylinder (21) is fitted with two grooved guide rings (7) arranged at intervals along the vertical direction, and the two ends of the fixed grid plate are respectively adapted and engaged with the grooves of the two guide rings (7); the side wall of the guide cylinder (21) is provided with a long strip-shaped sliding hole along the vertical direction; the outer wall of the weight (22) has a protrusion extending out of the sliding hole; the protrusion is fixedly connected to the moving grid plate.

6. The multi-position intelligent integrated Vicat apparatus according to claim 1, characterized in that, The main support frame (1) also includes a base (11) and a side support (12); the bottom end of the side support (12) is fixed to one side of the base (11) perpendicular to the bottom end of the base (11); the support beam (13) is fixed to the top of the side support (12) above the base (11).

7. A method for measuring the multi-position intelligent integrated Vicat apparatus according to any one of claims 1-6, comprising measuring the initial setting time and the final setting time, characterized in that, Includes the following steps: S1: Control the moving platform (23) of the test drive assembly of the two sets of test components (2) to move in a straight line in the horizontal direction, and at the same time control the rotation drive assembly to drive the turntable (32) of the turntable assembly to rotate around its central axis; align the initial setting needle (4) at the bottom of the weight (22) of one set of test components (2) with a test mold (31) to determine the initial setting time; or align the final setting needle (5) at the bottom of the weight (22) of the other set of test components (2) with a test mold (31) to determine the final setting time. S2: Control the weight drive assembly to drive the weight (22) to slowly lower in the vertical direction in the guide tube (21). When the needle tip of the initial solidification needle (4) or the final solidification needle (5) reaches the distance value X above the corresponding test mold (31), set the corresponding displacement sensor (25) to zero. S3: Continue to control the weight drive assembly to slowly lower the weight (22). When the tip of the initial solidification needle (4) or the final solidification needle (5) contacts the sample surface inside the corresponding mold (31), an electrical signal is fed back to the corresponding weight motor (24), the weight motor (24) stops, and the displacement value of the displacement sensor (25) corresponding to the initial solidification needle (4) is recorded as a; or the displacement value of the displacement sensor (25) corresponding to the final solidification needle (5) is recorded as b. S4: Then suddenly apply an acceleration to the weight motor (24) to make the weight (22) fall freely. When the displacement sensor (25) shows no change in value, record the displacement value of the displacement sensor (25) corresponding to the initial setting needle (4) as c; or record the displacement value of the displacement sensor (25) corresponding to the final setting needle (5) as d; control the weight motor (24) to pull up the weight (22), and complete one measurement of the initial setting time or final setting time of a test mold (31); S5: After the measurement of a test mold (31) is completed, the relative position of the moving platform (23) and the turntable (32) needs to be adjusted appropriately for the next measurement so that different points on the test mold (31) can be measured; and during the time interval between the two measurements of a test mold (31), the initial setting time or final setting time of the remaining test molds (31) on the turntable (32) is measured according to steps S1-S4. S6: Record the value c of each measurement of the same mold (31), measure the height dimension of the sample inside the mold (31) as L, when the value of "L+Xc" is 4mm±1mm, the mold (31) reaches the initial setting state, and the initial setting time of the mold (31) is completed. Alternatively, record the values ​​b and d of the same mold (31) each time it is measured; when the value of "db" is less than 0.5 mm, the mold (31) reaches the final setting state and the final setting time of the mold (31) is measured.

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