Castable setting time measuring device

Abstract

The invention provides a castable setting time measuring device, which comprises a sample barrel, a test needle and a vertical reciprocating motion part, and also comprises a test needle penetration point displacement assembly, and the test needle penetration point displacement assembly comprises a sample barrel rotation driving part used for driving the sample barrel to rotate so as to change the penetration position of the test needle through the rotation of the sample barrel; the test needle horizontal moving part is arranged at the top of the sample barrel, and is connected with the test needle through the vertical reciprocating moving part, so that the test needle can be driven by the vertical reciprocating moving part to penetrate into a next penetration point again after the test needle moves by a fixed distance on the test needle horizontal moving part; the sample barrel rotation driving part, the test needle horizontal moving part and the vertical reciprocating moving part are all connected with a PLC (Programmable Logic Controller); the PLC is used for controlling the sample barrel rotation driving part, the test needle horizontal moving part and the vertical reciprocating moving part to act, so that the penetration position of the test needle corresponds to the penetration point position on a set penetration track. According to the invention, the accuracy of test results is improved.

Description

Technical Field

[0001] The invention relates to the technical field of refractory castables, in particular to a device for measuring the setting time of a castable. Background Art

[0002] Compared with shaped refractory products, amorphous refractory materials have many advantages, such as convenient construction, simple production process, and low energy consumption. A large amount of carbon dioxide will be released during the preparation process of shaped refractory materials, and amorphization is the development trend of refractory materials. Refractory castables are a mixture composed of refractory aggregates, powders, and binders of a certain grade. After adding water or other liquids, they are constructed by self-flowing, vibration, spraying and other molding methods. Low-carbon refractory castables are an important direction for the development of the refractory industry and are widely used in iron and steel metallurgy, petrochemicals, cement and glass industries. During the use of refractory castables, carbon dioxide emissions can be reduced by optimizing construction processes and other measures. Therefore, it is of great significance to accurately evaluate the construction performance of refractory castables.

[0003] The working properties of castables, such as fluidity and plasticity, may decrease over time, and eventually solidify into a hardened body with a certain strength. The time spent in the solidification process is divided into initial setting time and final setting time. Initial setting time and final setting time are important indicators to characterize its construction performance, which directly affect the construction quality of the castable lining, and ultimately have a significant impact on the service life and safety of the cast lining. Therefore, accurate determination of the initial setting time and final setting time of refractory castables is an important basis for scientific and reasonable planning of its construction process. When the castable sample begins to solidify, the penetration resistance of the test needle increases. By measuring the penetration resistance of the test needle, the setting time of the castable can be determined, and the setting behavior of the castable can be evaluated.

[0004] In the existing concrete setting time test technology, a penetration resistance meter is used to measure the penetration resistance of a test needle penetrating multiple penetration points of a sample at the same time interval, and then the setting time is determined by a curve showing the relationship between penetration resistance and time. However, multiple penetrations of the test needle on the same sample can easily cause the penetration points to overlap, affecting the accuracy of the test results. Usually, the staff is required to move the position of the sample barrel based on experience, so that the test needle penetrates different positions of the sample, which is highly random and thus affects the accuracy of the measurement results. Summary of the invention

[0005] In view of the deficiencies in the prior art, the object of the present invention is to provide a device for measuring the setting time of a casting material, which improves the degree of automation of the test process and improves the accuracy of the measurement result.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solution: a casting material setting time measuring device, including a sample barrel, a test needle and a vertical reciprocating moving part, and also includes a test needle penetration point shifting assembly, the test needle penetration point shifting assembly includes:

[0007] The sample barrel rotation driving unit is used to drive the sample barrel to rotate, so as to change the position where the test needle penetrates through the rotation of the sample barrel;

[0008] The test needle horizontal moving part is arranged on the top of the sample barrel, and the test needle horizontal moving part is connected with the test needle through the vertical reciprocating moving part, so that the test needle can be driven by the vertical reciprocating moving part to penetrate into the next penetration point again after the test needle horizontal moving part moves a certain distance;

[0009] The sample barrel rotation drive unit, the test needle horizontal moving unit and the vertical reciprocating moving unit are all connected to a PLC controller, and the PLC controller is used to control the movement of the sample barrel rotation drive unit, the test needle horizontal moving unit and the vertical reciprocating moving unit so that the penetration position of the test needle corresponds to the penetration point position on the set penetration trajectory.

[0010] Preferably, the penetration trajectory is a snail spiral line, and a plurality of penetration points are arranged on the snail spiral line. The test needle penetrates into each penetration point in sequence along the snail spiral line from the outermost penetration point of the snail spiral line.

[0011] Preferably, the sample barrel rotation driving part includes a gear column a and a gear column a driving member, a base is provided at the bottom of the sample barrel, the gear column a is sleeved and fixed on the sample barrel, the gear column a driving member is engaged with the gear column a to drive the gear column a to rotate, the gear column a driving member includes a gear column b and a stepper motor a, the stepper motor a is arranged on the base in a horizontal direction, and the gear column b is fixedly connected to the stepper motor a, the gear column b is engaged with the gear column a, and the stepper motor a is connected to a PLC controller.

[0012] Preferably, the coordinate information of each penetration point and the initial position coordinate information of the test needle 23 are preset in the PLC controller 27, the sample barrel rotation drive unit is connected to the driver a24, and the test needle horizontal moving unit is connected to the driver b25, and the PLC controller 27 controls the driver a24 and the driver b25 to drive the test needle 23 to penetrate each penetration point in sequence according to the coordinate information.

[0013] Preferably, the test needle is connected to the vertical reciprocating moving part through a tension and compression sensor, and the tension and compression sensor is connected to a PLC controller.

[0014] Preferably, the test needle is connected to the tension and compression sensor via a horizontally arranged fixed plate.

[0015] Preferably, the horizontal moving part of the test needle includes a stepper motor b, a slide rail a, a screw rod a and a slider a. A support frame is vertically arranged on the base, and a transverse through groove is provided on the support frame located at the top of the sample barrel. The stepper motor b is arranged on the support frame in the horizontal direction, and the slide rail a is arranged in the transverse through groove in the horizontal direction. One end of the screw rod a passes through the transverse through groove and is fixedly connected to the stepper motor b through a coupling a. The other end of the screw rod a is rotatably connected to the inner wall of the transverse through groove. The slider a is threadedly connected to the screw rod a and is slidably connected to the slide rail a in the horizontal direction. The slider a is connected to the vertical reciprocating moving part.

[0016] Preferably, the vertical reciprocating moving part is connected to the slider a through an L-shaped bracket, and the vertical reciprocating moving part includes a stepper motor c, a coupling b, a slide rail b, a screw rod b and a slider b. The stepper motor c is vertically fixed on the L-shaped bracket, and the slide rail b is vertically fixed on the L-shaped bracket below the stepper motor c. The screw rod b vertically penetrates the slide rail b, and the top of the screw rod b is connected to the stepper motor c through the coupling b, the bottom end of the screw rod b is rotatably connected to the slide rail b, the slider b is threadedly connected to the screw rod b, and is vertically slidably connected to the slide rail b, and the bottom of the slider b is connected to the tension and compression sensor through a connecting rod.

[0017] Preferably, a sample barrel base is provided below the bottom of the sample barrel, the sample barrel is clamped with the sample barrel base, and the bottom of the sample barrel base is rotatably connected with the base via a bearing support.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention provides a casting material setting time measuring device, which drives the sample barrel to rotate by the sample barrel rotation driving part and drives the test needle to move horizontally by the test needle horizontal moving part, so as to change the penetration position of the test needle, thereby avoiding the problem of multiple penetration of the test needle on the same sample, which easily causes the penetration point to overlap, and improves the accuracy of the measurement result;

[0020] In the present invention, the rotation of the sample barrel and the horizontal movement of the test needle are both controlled by a PLC controller, and the penetration trajectory and the positions of various penetration points distributed on the penetration trajectory are preset in the PLC controller in advance, so that the penetration point of the test needle under the PLC controller and the preset penetration point can be accurately corresponded, avoiding the randomness caused by the staff moving the position of the sample barrel according to experience, and further improving the accuracy of the measurement results. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The present invention is a schematic diagram of the overall structure of a device for measuring the setting time of a casting material.

[0022] Figure 2The present invention is a schematic diagram of the structure of a base, a support frame and a bearing support of a casting material setting time measuring device.

[0023] Figure 3 The structure diagram of the sample barrel, sample barrel base, bearing support and gear column a of a casting material setting time measuring device of the present invention is shown in FIG. Figure 1 .

[0024] Figure 4 The structure diagram of the sample barrel, sample barrel base, bearing support and gear column a of a casting material setting time measuring device of the present invention is shown in FIG. Figure 2 .

[0025] Figure 5 The present invention is a schematic structural diagram of a stepping motor a and a gear column b of a device for measuring the setting time of a casting material.

[0026] Figure 6 The structure of the horizontal moving slider of the casting material setting time measuring device of the present invention is shown in FIG. Figure 1 .

[0027] Figure 7 The structure of the horizontal moving slider of the casting material setting time measuring device of the present invention is shown in FIG. Figure 2 .

[0028] Figure 8 The present invention is a schematic diagram of the structure of the vertical reciprocating moving part of a device for measuring the setting time of a casting material.

[0029] Fig. 9 The present invention is a connection relationship diagram of a test needle, a tension and compression sensor and a fixed plate of a casting material setting time measuring device.

[0030] Fig.10 The present invention is a schematic diagram of the circuit connection of the control part of a device for measuring the setting time of a casting material.

[0031] Fig.11 The present invention provides an example of a test path for a device for measuring the setting time of a casting material.

[0032] Description of reference numerals:

[0033] 1. Base, 2. Support frame, 3. Sample barrel, 4. Sample, 5. Sample barrel base, 6. Bearing support, 7. Gear column a, 8. Gear column b, 9. Stepper motor a, 10. Stepper motor b, 11. Coupling a, 12. Slide rail a, 13. Screw rod a, 14. Slider a, 15. L-shaped bracket, 16. Stepper motor c, 17. Coupling b, 18. Slide rail b, 19. Screw rod b, 20. Slider b, 21. Fixed plate, 22. Tension and compression sensor, 23. Probe, 24. Driver a, 25. Driver b, 26. Driver c, 27. PLC controller. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned purposes, features and advantages of the embodiments of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of this application.

[0035] Since the same sample needs to be randomly penetrated by the test needle multiple times, it is easy to cause the penetration points to overlap, affecting the accuracy of the test results. Therefore, the staff needs to move the position of the sample barrel based on experience to ensure that multiple penetration points of the sample can be tested normally. The position of the sample barrel needs to be constantly changed during the whole process, which is troublesome to operate. In addition, due to the long solidification time of some castables, the work intensity of the testers is high. In addition, the position of the sample barrel is moved manually, which makes the position of the test needle penetrating the sample random, thus affecting the accuracy of the measurement results.

[0036] In view of this, in order to solve the above-mentioned problems, the present invention provides a device for measuring the setting time of a casting material, which improves the automation degree of the test process and the accuracy of the measurement result.

[0037] like Figures 1 to 11 As shown, a casting material setting time measuring device comprises a sample barrel 3, a test needle 23 and a vertical reciprocating moving part, characterized in that it also comprises a test needle penetration point shifting assembly, and the test needle penetration point shifting assembly comprises:

[0038] The sample barrel rotation driving unit is used to drive the sample barrel 3 to rotate, so as to change the penetration position of the test needle 23 by rotating the sample barrel 3, and the sample barrel 3 contains a sample 4;

[0039] The test needle horizontal moving part is arranged on the top of the sample barrel 3, and is connected to the test needle 23 through the vertical reciprocating moving part, so that after the test needle 23 moves a certain distance in the test needle horizontal moving part, the test needle 23 can be driven by the vertical reciprocating moving part to penetrate into the next penetration point again;

[0040] The sample barrel rotation drive unit, the test needle horizontal moving unit and the vertical reciprocating moving unit are all connected to the PLC controller 27, and the PLC controller 27 is used to control the movement of the sample barrel rotation drive unit, the test needle horizontal moving unit and the vertical reciprocating moving unit so that the penetration position of the test needle 23 corresponds to the penetration point position on the set penetration trajectory.

[0041] The test needle 23 has a variety of penetration trajectories in the sample barrel 3. When in use, it is necessary to start the PLC controller 27. The PLC controller 27 controls the sample barrel rotation drive part, the test needle horizontal moving part and the vertical reciprocating moving part to move according to the penetration point penetration position coordinate system designed in the PLC controller 27. The PLC controller 27 can complete the programmed control of a series of actions, so it can solve the problem of poor repeatability and accuracy of test results to a certain extent, improve test accuracy, and at the same time improve the degree of automation of the test process and reduce the workload of testers.

[0042] Specifically, the penetration trajectory is a snail spiral line, and a plurality of penetration points are arranged on the snail spiral line. The test needle 23 penetrates into each penetration point in sequence along the snail spiral line from the outermost penetration point of the snail spiral line. This is because this penetration trajectory has the most penetration points in the sample barrel 3 tested, and the test result is more accurate.

[0043] Specifically, a specific structure of a specific implementation method of the sample barrel rotation drive unit is given. The sample barrel rotation drive unit includes a gear column a7 and a gear column a driving member. A base 1 is provided at the bottom of the sample barrel 3. The gear column a7 is sleeved and fixed on the sample barrel 3. The gear column a driving member is engaged with the gear column a7 to drive the gear column a7 to rotate. The gear column a driving member includes a gear column b8 and a stepper motor a9. The stepper motor a9 is arranged on the base 1 in a horizontal direction, and the gear column b8 is fixedly connected to the stepper motor a9. The gear column b8 is engaged with the gear column a7, and the stepper motor a9 is connected to the PLC controller 27.

[0044] Because the gear meshing method can lock the stepper motor a9 when the stepper motor a9 stops rotating, the accuracy of the test result is improved.

[0045] When in use, start the PLC controller 27, the stepper motor a9 in the gear column a driving member rotates to drive the gear column b8 to rotate, and the gear column b8 is meshed with the gear column a7, so it drives the gear column a7 to rotate, and then drives the sample barrel 3 to rotate, and the test needle 23 will intermittently penetrate the sample in the sample barrel 3 driven by the vertical reciprocating moving part. Since the sample barrel 3 rotates, the penetration point of the test needle 23 moves in an arc trajectory around the barrel wall of the sample barrel 3. However, the test needle 23 can also move horizontally driven by the horizontal moving part, so that the penetration point will form a concentric arc motion trajectory around the center of the sample barrel 3. At the same time, the PLC controller 27 can complete the programmed control of a series of actions, so it can solve the problem of poor repeatability and accuracy of the test results to a certain extent, and at the same time improve the degree of automation of the test process and reduce the workload of the tester.

[0046] Specifically, the implementation method of the precise control of the present invention is given. The coordinate information of each penetration point and the initial position coordinate information of the test needle 23 are preset in the PLC controller 27. The sample barrel rotation drive unit is connected to the driver a24, and the test needle horizontal moving unit is connected to the driver b25. The PLC controller 27 controls the driver a24 and the driver b25 to drive the test needle 23 to penetrate each penetration point in sequence according to the coordinate information. The vertical reciprocating moving unit controls the initial height, speed and depth of the test needle penetration, and does not participate in the control of the penetration position. The accuracy of the penetration point is controlled by the test needle horizontal moving unit and the sample barrel rotation drive unit. The preferred scheme for the initial position coordinate information of the test needle 23 here is the coordinate origin.

[0047] Specifically, the test needle 23 is connected to the vertical reciprocating moving part through the tension and compression sensor 22, and the tension and compression sensor 22 is connected to the PLC controller 27. Through the accurate feedback of the test value of the tension and compression sensor 22, the information of the penetration or removal of the test needle can be obtained, which is convenient for accurate control.

[0048] The test needle 23 is connected to the tension and compression sensor 22 through a horizontally arranged fixed plate 21, so that the force is more uniform and the test result is more accurate. Damage to the test needle 23 will also affect the test result. The test needle 23 can be repaired and replaced to improve accuracy.

[0049] Specifically, a specific structure of a specific implementation method of a test needle horizontal moving part is given, and the test needle horizontal moving part includes a stepping motor b10, a slide rail a12, a screw 13 and a slider a14. A support frame 2 is vertically arranged on the base 1, and a transverse through groove is opened on the support frame 2 located at the top of the sample barrel 3. The stepping motor b10 is arranged on the support frame 2 in a horizontal direction, and the slide rail a12 is arranged in the transverse through groove in a horizontal direction. One end of the screw rod a13 passes through the transverse through groove and is fixedly connected to the stepping motor b11 through a coupling a11. The other end of the screw rod a13 is rotatably connected to the inner wall of the transverse through groove. The slider a14 is threadedly connected to the screw rod a13 and is slidably connected to the slide rail a12 in the horizontal direction. The slider a14 is connected to the vertical reciprocating moving part.

[0050] Specifically, a specific structure of a specific implementation method of the horizontal moving part of the test needle is given. The vertical reciprocating moving part is connected to the slider a14 through an L-shaped bracket 15, and the vertical reciprocating moving part includes a stepping motor c16, a coupling b17, a slide rail b18, a screw b19 and a slider b20. The stepping motor c16 is fixed on the L-shaped bracket 15 vertically, and the slide rail b18 is fixed on the L-shaped bracket 15 located below the stepping motor c16 vertically. The screw b19 vertically penetrates the slide rail b18, and the top of the screw b19 is connected to the stepping motor c16 through the coupling b17, and the bottom of the screw b19 is rotatably connected to the slide rail b18. The slider b20 is threadedly connected to the screw b19 and is vertically slidably connected to the slide rail b18. The bottom of the slider b20 is connected to the tension and compression sensor 22 through a connecting rod, and the driver c26 is connected to the stepping motor c16 to realize the operation of the stepping motor c16.

[0051] Specifically, a sample barrel base 5 is provided below the bottom of the sample barrel 3, the sample barrel 3 is clamped with the sample barrel base 5, and the bottom of the sample barrel base 5 is rotatably connected to the base 1 through a bearing support 6. It is convenient to replace sample barrels 3 of different sizes, and the average value of a large container test is more accurate than that of multiple small container tests.

[0052] The specific working process of testing cement setting time of the present invention is as follows:

[0053] In the first step, the prepared sample 4 is placed into the sample barrel 3 , and the sample barrel 3 is mounted on the sample barrel base 51 , and the groove at the bottom of the sample barrel 3 is aligned with the protrusion on the sample barrel base 5 .

[0054] In the second step, a test needle 23 of a required size is installed at the bottom of the tension and compression sensor 22, and the test needle 23 is positioned above the initial test point through the PLC controller 27, and the height is adjusted.

[0055] The third step is to set the PLC controller 27 to control the motion trajectory and working time of the test needle 23 to correspond to the penetration point of the preset trajectory of the PLC controller 27, so that the test needle 23 moves along the required route. Fig.11 This is an example of a test path.

[0056] Step 4: Start the test. After the required time has passed, the test needle 23 moves downward under the control of the stepper motor c16. The tension and compression sensor 22 tests the pressure value and the PLC controller 27 collects the output. After reaching the test depth, the test needle 23 moves upward to reset. Then the stepper motor a9 rotates to rotate the sample barrel 3 to the required angle. Repeat the above process until the sample barrel 3 rotates one circle. The stepper motor b10 controls the horizontal operation of the slider a14 to move the test needle 23 to a new test point. Repeat the above process until the test is completed.

[0057] According to the construction method, amorphous refractory materials can be divided into castables, ramming materials, gunning materials and plastic materials, and refractory castables are an important component of them. Due to their excellent comprehensive performance, they are often used in high-temperature service conditions. Refractory castables are a mixture of refractory aggregates, powders and binders of a certain grade. After adding water or other liquids, they are constructed by low-pressure filling and molding methods such as self-flow, vibration and spraying. Compared with shaped refractory products, amorphous refractory materials have many advantages, such as convenient construction, simple production process and low energy consumption. Castables are widely used in the field of infrastructure, and a large amount of carbon dioxide is released during the preparation of traditional castables. The low carbonization of castables can reduce carbon dioxide emissions by adopting alternative materials, reducing cement usage and changing the castable ratio during the preparation of castables. Low-carbon castables are an important direction for the development of the refractory industry and are widely used in industries such as steel metallurgy, petrochemicals, cement and glass. Accurate determination of various physical and chemical indicators of castables is conducive to the research and development and promotion of castables.

[0058] The working properties of castables, such as fluidity and plasticity, may decrease over time, and eventually solidify into a hardened body with a certain strength. The time spent in the solidification process is divided into initial setting time and final setting time. Initial setting and final setting time are important indicators to characterize its construction performance, which directly affect the construction quality of the castable lining, and ultimately have a significant impact on the service life and safety of the cast lining. Therefore, accurately determining the initial setting time and final setting time of refractory castables is an important basis for scientific and reasonable planning and arrangement of its construction process.

[0059] The initial setting process refers to the hydration reaction of cement after contact with water, and the initial overlap and adhesion between the hydration product particles to form a skeleton of a certain scale, but the overall plasticity is not completely lost, while the final setting is the process in which the cement hydration reaction continues, the hydration products further increase, and a dense, firm, and complete skeleton is formed, and plastic deformation cannot occur. The initial setting process of the castable can ensure that it has enough time for transportation, pouring or vibration. When the initial setting of the castable is completed, it means that it has reached the thixotropic limit and can no longer undergo plastic deformation, which is its construction limit. After the final setting is completed, the castable begins to have strength and can withstand a certain load. Therefore, the final setting time of the castable is an important basis for judging its demoulding time. For the construction of most castables, after the initial setting is completed, the shorter the final setting time, the faster the strength of the cast lining increases, and the follow-up work can be carried out as soon as possible, which is conducive to improving production efficiency. Therefore, accurately determining the initial and final setting time of refractory castables is an important basis for scientific and reasonable planning and arrangement of their construction process.

[0060] At present, the methods for studying the early setting and hardening of fresh concrete include the resistivity method and the penetration resistance method. Among them, the study of the early setting and hardening of fresh concrete by the resistivity method measured and analyzed the characteristics of the resistivity development during the early hydration of fresh concrete. According to the characteristic points on the resistivity curve and its differential curve, the hydration of concrete is divided into: dissolution period, setting period, pre-hardening period and hardening deceleration period. A method for finding the final setting time and estimating the initial setting time of concrete from the first peak characteristic point of the resistivity development differential curve is proposed. The results show that the initial setting time and final setting time obtained by the resistivity method have a good correlation with the setting time obtained by the penetration resistance method. This method is relatively mature in cement paste, but it can only be carried out in the laboratory, and the in-situ detection of concrete cannot be guaranteed. The coarse aggregate in the concrete will also cause errors in the experimental results. However, compared with the resistivity method, the penetration resistance method has a certain universality, that is, the penetration resistance of the test needle at multiple penetration points of the sample with the same time interval is measured by the penetration resistance meter, and then the setting time is determined by the relationship curve between the penetration resistance and time. However, if the test needle is inserted into the same sample multiple times, it is easy to cause the penetration points to overlap, affecting the accuracy of the test results. Usually, the staff needs to move the position of the sample barrel based on experience, so that the test needle penetrates different positions of the sample, which has a large randomness and affects the accuracy of the test results. Therefore, it is necessary to improve it. At the same time, a casting material setting time measuring device is invented and designed.

[0061] The main improvements of the present invention are:

[0062] 1) A casting material setting time measuring device provided by the present invention drives the sample barrel to rotate by a sample barrel rotation driving part and drives the test needle to move horizontally by a test needle horizontal moving part, so as to change the penetration position of the test needle, thereby avoiding the problem of multiple penetrations of the test needle on the same sample, which easily causes the penetration points to overlap, and improving the accuracy of the measurement result;

[0063] 2) In the present invention, the rotation of the sample barrel and the horizontal movement of the test needle are both controlled by a PLC controller, and the penetration trajectory and the positions of the various penetration points distributed on the penetration trajectory are preset in advance in the PLC controller, so that the penetration point of the test needle under the PLC controller corresponds precisely to the preset penetration point, avoiding the randomness caused by the staff moving the position of the sample barrel based on experience, and further improving the accuracy of the measurement results.

[0064] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A casting material setting time measuring device, comprising a sample barrel (3), a test needle (23) and a vertical reciprocating moving part, characterized in that: Also included is a test needle penetration point displacement assembly, the test needle penetration point displacement assembly comprising: A sample barrel rotation driving unit, used for driving the sample barrel (3) to rotate, so as to change the position where the test needle (23) penetrates through the rotation of the sample barrel (3); A test needle horizontal moving part is arranged on the top of the sample barrel (3), and the test needle horizontal moving part is connected to the test needle (23) through a vertical reciprocating moving part, so that after the test needle horizontal moving part moves a certain distance, the test needle (23) can be driven by the vertical reciprocating moving part to penetrate into the next penetration point again; The sample barrel rotation driving unit, the test needle horizontal moving unit and the vertical reciprocating moving unit are all connected to a PLC controller (27), and the PLC controller (27) is used to control the movement of the sample barrel rotation driving unit, the test needle horizontal moving unit and the vertical reciprocating moving unit so that the penetration position of the test needle (23) corresponds to the penetration point position on the set penetration trajectory.

2. A casting material setting time measuring device according to claim 1, characterized in that: The penetration track is a snail spiral line, and a plurality of penetration points are arranged on the snail spiral line. The test needle (23) penetrates into each penetration point in sequence along the snail spiral line from the outermost penetration point of the snail spiral line.

3. A casting material setting time measuring device according to claim 1, characterized in that: The sample barrel rotation driving part comprises a gear column a (7) and a gear column a driving member. A base (1) is provided at the bottom of the sample barrel (3). The gear column a (7) is sleeved and fixed on the sample barrel (3). The gear column a driving member is meshed with the gear column a (7) to drive the gear column a (7) to rotate. The gear column a driving member comprises a gear column b (8) and a stepping motor a (9). The stepping motor a (9) is arranged on the base (1) in a horizontal direction, and the gear column b (8) is fixedly connected to the stepping motor a (9). The gear column b (8) is meshed with the gear column a (7). The stepping motor a (9) is connected to a PLC controller (27).

4. A casting material setting time measuring device according to claim 1, characterized in that: The PLC controller (27) has preset coordinate information of each penetration point and coordinate information of the initial position of the test needle (23); the sample barrel rotation driving unit is connected to the driver a (24), and the test needle horizontal moving unit is connected to the driver b (25); the PLC controller (27) controls the driver a (24) and the driver b (25) to drive the test needle (23) to penetrate each penetration point in sequence according to the coordinate information.

5. A casting material setting time measuring device according to claim 1, characterized in that: The test needle (23) is connected to the vertical reciprocating moving part via a tension and compression sensor (22), and the tension and compression sensor (22) is connected to a PLC controller (27).

6. A casting material setting time measuring device according to claim 5, characterized in that: The test needle (23) is connected to the tension and compression sensor (22) via a horizontally arranged fixed plate (21).

7. A casting material setting time measuring device according to claim 3, characterized in that: The horizontal moving part of the test needle comprises a stepping motor b (10), a slide rail a (12), a screw rod a (13) and a slider a (14). A support frame (2) is vertically arranged on the base (1). A transverse through slot is provided on the support frame (2) located at the top of the sample barrel (3). The stepping motor b (10) is arranged on the support frame (2) in the horizontal direction. The slide rail a (12) is arranged in the transverse through slot in the horizontal direction. One end of the screw rod a (13) passes through the transverse through slot and is fixedly connected to the stepping motor b (10) through a coupling a (11). The other end of the screw rod a (13) is rotatably connected to the inner wall of the transverse through slot. The slider a (14) is threadedly connected to the screw rod a (13) and is slidably connected to the slide rail a (12) in the horizontal direction. The slider a (14) is connected to the vertical reciprocating moving part.

8. A casting material setting time measuring device according to claim 6, characterized in that: The vertical reciprocating moving part is connected to the slider a (14) through an L-shaped bracket (15), and the vertical reciprocating moving part includes a stepping motor c (16), a coupling b (17), a slide rail b (18), a screw rod b (19) and a slider b (20). The stepping motor c (16) is vertically fixed on the L-shaped bracket (15), and the slide rail b (18) is vertically fixed on the L-shaped bracket (15) located below the stepping motor c (16). The screw rod b (19) vertically penetrates the slide rail b (18), and the top end of the screw rod b (19) is connected to the stepping motor c (16) through the coupling b (17), and the bottom end of the screw rod b (19) is rotationally connected to the slide rail b (18). The slider b (20) is threadedly connected to the screw rod b (19) and is vertically slidably connected to the slide rail b (18). The bottom of the slider b (20) is connected to the tension and compression sensor (22) through a connecting rod.

9. A casting material setting time measuring device according to claim 1, characterized in that: A sample barrel base (5) is provided below the bottom of the sample barrel (3), the sample barrel (3) is clamped with the sample barrel base (5), and the bottom of the sample barrel base (5) is rotatably connected to the base (1) via a bearing support (6).

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