A plastering gypsum spreading rate measuring device

Abstract

The present invention relates to the technical field of plastering gypsum spreading rate measurement, and specifically relates to a plastering gypsum spreading rate measurement device, which includes a bracket, a spreading rate testing mechanism, a weighing mechanism and a supporting mechanism installed on the bracket. A limiting mechanism for limiting the spreading rate testing mechanism is installed on the weighing mechanism; when adding slurry to the template, the weighing mechanism is not activated, that is, in an unweighed state. At this time, the connecting frames on both sides of the driving frame are in the initial position, and the hook seats on the two cross bars insert the clamping columns into the clamping holes on the two groups of ear plates, realizing the horizontal direction limitation of the template, avoiding the horizontal movement of the template during the scraping of the scraping mechanism and affecting the scraping. When the driving frame rises, it will drive the two connecting frames to rise at the same time. Since the length of the clamping column is less than the distance between the pushing frame and the bottom of the template, the two groups of clamping columns are separated from the clamping holes on the ear plates first, and then the pushing frame on the weighing assembly pushes the template to complete the weighing, without affecting the rising of the template.

Description

Technical Field

[0001] The present invention relates to the technical field of measuring the spreading rate of plastering gypsum, and specifically relates to a device for measuring the spreading rate of plastering gypsum. Background Art

[0002] Plastering gypsum is mainly a new type of interior wall base plastering material synthesized from industrial by - product gypsum (such as desulfurized gypsum, phosphogypsum, etc. However, phosphogypsum should be carefully avoided when selected due to high impurity content and radioactive threat), aggregates, fillers, additives, etc.; the spreading rate of plastering gypsum refers to the spreading amount of plastering gypsum per unit area, usually in kg / m² or L / m². The detection of the spreading rate of plastering gypsum generally uses special spreading templates, scrapers, etc.

[0003] However, when currently detecting the spreading rate of plastering gypsum, the template is weighed and then placed on a horizontal ground. Then, the slurry is stirred evenly, and then the slurry is evenly poured into the interior of the template. Finally, the excess slurry is scraped off with a scraping ruler, and the template filled with slurry is weighed again. In this way, the spreading rate is calculated by cooperation. Each time of measurement requires finding a horizontal bottom surface, and when the template filled with slurry needs to be moved to the weighing component for weighing, it is not only laborious, but also when the template is unevenly stressed during handling, it is easy to cause cracks in the leveled slurry, and it is necessary to add slurry again for leveling and weighing; when the template is placed on a horizontal bottom surface and slurry is added, the template is not fixed, and the template is easy to move during scraping, affecting the scraping operation of the slurry in the template; when scraping the excess slurry from the template placed on the ground, people manually knock and vibrate the wooden board to make the slurry compacted, and the slurry is also manually scraped off. Not only is the vibration effect poor, but also when people manually scrape the slurry, it is easy to apply uneven force, and the thickness of the slurry cannot be accurately guaranteed, affecting the calculation of the spreading rate. Summary of the Invention

[0004] In view of the problems in the prior art, the present invention provides a device for measuring the spreading rate of plastering gypsum.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a device for measuring the spreading rate of plastering gypsum, including a bracket, a spreading rate testing mechanism and a weighing mechanism installed on the bracket, and the weighing mechanism is located at the bottom of the spreading rate testing mechanism;

[0006] The spreading rate testing mechanism includes a roller, the roller is rotatably connected to the bracket, and a template is placed on the roller;

[0007] The weighing mechanism includes side frames. Two side frames are fixedly connected to the bracket relatively. A fixing plate is fixedly connected between the two side frames. A weighing component is placed on the fixing plate. A pushing frame located at the bottom of the template is provided on the weighing component. The bottom of the fixing plate is fixedly connected with a mounting frame. A hydraulic component is installed at the bottom of the mounting frame. The output end of the hydraulic component penetrates the mounting frame. The output end of the hydraulic component is fixedly connected with a driving frame. The driving frame penetrates the fixing plate. The top of the driving frame abuts against the bottom of the weighing component.

[0008] Specifically, a plurality of rollers are equidistantly arranged, and all the rollers are rotatably connected to the bracket, and the tops of the plurality of rollers are higher than the surface of the bracket.

[0009] Specifically, the coating rate testing mechanism further includes a limiting plate. A limiting plate that abuts against the side wall of the template is fixedly connected to the bracket. Both ends of the limiting plate are in an arc structure.

[0010] Specifically, the weighing mechanism further includes protective columns. Four cuboid protective columns are fixedly arranged at the bottom of the weighing component in a rectangular array. The protective columns are slidably connected to the fixing plate.

[0011] Specifically, a limiting mechanism for limiting the coating rate testing mechanism is installed on the weighing mechanism. The limiting mechanism includes two connecting frames. L-shaped connecting frames are fixedly connected to the two sides of the driving frame relatively. Two cross bars are fixedly connected to the two connecting frames relatively. A plurality of hook seats with an inverted L-shaped cross section are fixedly connected to the two cross bars equidistantly. Columns are fixedly connected to the bottoms of the two groups of hook seats. A plurality of ear plates are fixedly connected to the two sides of the template equidistantly. A card hole is formed in each of the plurality of ear plates. The column is inserted into the interior of the card hole. The length of the column is less than the distance between the pushing frame and the bottom of the template.

[0012] Specifically, the cross section of the driving frame is in a U-shaped structure, and the driving frame and the two connecting frames are arranged in a cross shape.

[0013] Specifically, a supporting mechanism is installed on the bracket. The supporting mechanism includes a support rod and a support plate. Two support rods are fixedly connected to the two sides of the bracket relatively. The four support rods are fixedly connected to the support plate at the top. The distance between the two opposite ear plates is greater than the distance between the two opposite support rods.

[0014] Specifically, the limiting mechanism further includes a guiding groove. A guiding groove is formed in each of the two opposite support rods. The guiding groove is arranged corresponding to the ear plate. The distance between the two opposite ear plates is less than the distance between the two guiding grooves.

[0015] Specifically, a scraping mechanism is installed on the support mechanism. The scraping mechanism includes a guiding plate. The side wall of the support plate is fixedly connected with the guiding plate. A lead screw is rotatably connected to the guiding plate. A second motor is installed on the support plate. The output end of the second motor is fixedly connected to the lead screw. A moving plate that abuts against the bottom of the support plate and the guiding plate is threadedly connected to the lead screw. Skid plates are alternately slidably connected to both sides of the moving plate. Tooth-like structures are evenly arranged on the opposite sides of the two skid plates. A toothed shaft is rotatably connected to the moving plate. The toothed shaft meshes with the two groups of tooth-like structures. A third motor is installed on the moving plate. The output end of the third motor is fixedly connected to the toothed shaft. A pressing frame with a U-shaped cross-section is fixedly connected to the edge of the side wall of one of the skid plates. Two limiting grooves are oppositely formed at the bottom of the pressing frame. The distance between the two limiting grooves is equal to the width of the template. A plurality of micro-vibrating motors are installed on the top of the pressing frame. A scraping ruler is installed at the bottom of the other skid plate.

[0016] Specifically, a spread measurement mechanism is installed on the support mechanism. The spread measurement mechanism includes a base. The base is installed on the support plate. A push rod is slidably connected to the base. A placement tray is welded to the push rod. A limiting nut that abuts against the push rod is threadedly connected to the base. A truncated cone mold is placed on the placement tray. A mold sleeve is placed on the truncated cone mold. A tamping rod is placed inside the mold sleeve. A first motor is horizontally installed on the base. A protrusion that abuts against the push rod is fixedly connected to the output end of the first motor. A controller is installed on the support plate. The controller is electrically connected to the first motor.

[0017] The beneficial effects of the present invention are as follows:

[0018] (1) For the plastering gypsum coating rate measuring device of the present invention, the template is placed on multiple rollers on the bracket, and the limiting plate limits it to keep it horizontal. The empty template can be weighed by starting the weighing mechanism on the bracket to lift the template. The template can be placed by the contraction of the weighing mechanism. After the slurry inside the template is evenly scraped, the weighing component can be started again to weigh the template filled with slurry, which is convenient to obtain the weight difference between the empty template and the template filled with slurry. There is no need to find a flat ground for placing the template, and there is no need to manually fill the template with slurry, which saves effort and can also avoid the problem of slurry rupture caused by uneven force on the template and the need for re-scraping.

[0019] (2) In the plastering gypsum coating rate measuring device of the present invention, when adding the slurry to the template, the weighing mechanism is not activated, that is, in the non-weighing state. At this time, the connecting frames on both sides of the driving frame are in the initial position, and the hook seats on the two cross bars insert the clamping columns into the clamping holes on the two groups of ear plates, realizing the horizontal direction limit of the template, avoiding the horizontal movement of the template during the scraping of the scraping mechanism and affecting the scraping. When it is necessary to weigh the empty template and the template filled with slurry, the driving frame rises and will drive the two connecting frames to rise. Since the length of the clamping column is less than the distance between the pushing frame and the bottom of the template, the two groups of clamping columns are separated from the clamping holes on the ear plates first, and then the pushing frame on the weighing assembly pushes the template to complete the weighing, without affecting the rising of the template.

[0020] (3) In the plastering gypsum coating rate measuring device of the present invention, since the moving plate is limited by the guiding plate and the supporting plate, it will drive the moving plate to move in the direction of the second motor. When the moving plate drives the pressing frame to be located at the top of the template, start the third motor to make one of the sliding plates drive the pressing frame to descend. Further, the limiting grooves on the pressing frame will be inserted into both sides of the template. At this time, the pressing frame presses the template, and start the micro vibration motor to vibrate the template, realizing the pre-compaction of the slurry before scraping. The movement of the moving plate can be driven by the lead screw, and the sliding plate can rise, changing the different positions of the pressing frame on the template, realizing the compaction of different positions, making the calculation of the coating rate more accurate. After the third motor rotates in the reverse direction, the scraping ruler descends, and the distance between the scraping teeth and the bottom of the template can be adjusted. Start the second motor to make the scraping ruler evenly scrape the slurry in the template. Brief Description of the Drawings

[0021] The present invention will be further described below with reference to the drawings and embodiments.

[0022] Figure 1 is the overall structural schematic diagram of the present invention;

[0023] Figure 2 is the connection structural schematic diagram of the bracket, roller and template of the present invention;

[0024] Figure 3 is the connection structural schematic diagram of the placement plate, push rod and protrusion of the present invention;

[0025] Figure 4 is the connection structural schematic diagram of the roller, bracket and connecting frame of the present invention;

[0026] Figure 5 is the connection structural schematic diagram of the template, ear plate and clamping hole of the present invention;

[0027] Figure 6 is the connection structural schematic diagram of the weighing assembly, fixed plate and side frame of the present invention;

[0028] Figure 7Schematic diagram of the connection structure of the hook seat, cross bar and clamping post of the present invention;

[0029] Figure 8 Schematic diagram of the connection structure of the driving frame, connecting frame and cross bar of the present invention;

[0030] Figure 9 Schematic diagram of the connection structure of the sliding plate, moving plate and pressing frame of the present invention;

[0031] Figure 10 Schematic diagram of the connection structure of the moving plate, sliding plate, gear shaft and locking teeth of the present invention.

[0032] In the figure: 1, support; 2, support mechanism; 201, support rod; 202, support plate; 3, spread detection mechanism; 301, base; 302, placement tray; 303, truncated cone mold; 304, mold sleeve; 305, rammer; 306, motor I; 307, controller; 308, protrusion; 309, push rod; 310, limit nut; 4, coating rate testing mechanism; 401, template; 402, limit plate; 403, roller; 5, weighing mechanism; 501, side frame; 502, fixing plate; 503, mounting frame; 504, hydraulic component; 505, driving frame; 506, weighing component; 507, pushing frame; 508, protection post; 6, scraping mechanism; 601, motor II; 602, guide plate; 603, moving plate; 604, lead screw; 605, sliding plate; 606, motor III; 607, scraping ruler; 608, pressing frame; 609, limit groove; 610, micro vibration motor; 611, gear shaft; 612, locking teeth; 7, limiting mechanism; 701, connecting frame; 702, guide groove; 703, cross bar; 704, hook seat; 705, clamping post; 706, ear plate; 707, clamping hole. Detailed implementation manners

[0033] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0034] As Figures 1-10As shown in the figure, a plastering gypsum spreading rate measuring device according to the present invention includes a bracket 1, a spreading rate testing mechanism 4, a weighing mechanism 5 and a supporting mechanism 2 mounted on the bracket 1. The weighing mechanism 5 is located at the bottom of the spreading rate testing mechanism 4. A limiting mechanism 7 for limiting the spreading rate testing mechanism 4 is mounted on the weighing mechanism 5. A scraping mechanism 6 and a spreadability detecting mechanism 3 are mounted on the supporting mechanism 2. The spreading rate testing mechanism 4 includes a roller 403 rotatably connected to the bracket 1. A template 401 is placed on the roller 403. The weighing mechanism 5 includes side frames 501. Two side frames 501 are relatively fixedly connected to the bracket 1. A fixing plate 502 is fixedly connected between the two side frames 501. A weighing component 506 is placed on the fixing plate 502. A pushing frame 507 located at the bottom of the template 401 is provided on the weighing component 506. An installation frame 503 is fixedly connected to the bottom of the fixing plate 502. A hydraulic component 504 is mounted at the bottom of the installation frame 503. The output end of the hydraulic component 504 penetrates through the installation frame 503. The output end of the hydraulic component 504 is fixedly connected to a driving frame 505. The driving frame 505 penetrates through the fixing plate 502. The top of the driving frame 505 abuts against the bottom of the weighing component 506. The limiting mechanism 7 is connected to the driving frame 505. A plurality of rollers 403 are equidistantly arranged, and all the plurality of rollers 403 are rotatably connected to the bracket 1, and the tops of the plurality of rollers 403 are higher than the surface of the bracket 1. The spreading rate testing mechanism 4 further includes a limiting plate 402 fixedly connected to the bracket 1 and abutting against the side wall of the template 401. The two ends of the limiting plate 402 are arc-shaped structures. The weighing mechanism 5 further includes protective columns 508. Four rectangular parallelepiped-shaped protective columns 508 are fixedly arranged at the bottom of the weighing component 506 in a rectangular array. The protective columns 508 are slidably connected to the fixing plate 502.

[0035] When conducting the coating test of plastering gypsum, prepare a template 401. For laboratory tests, an aluminum alloy template with internal dimensions of 50*25*2 cm (length * width * thickness) is used as the standard template, and the dimensional error is less than ±0.02 cm. For on-site measurement, select a base wall that meets the on-site measurement standards (for concrete structure projects: flatness (0.8) mm, perpendicularity (0.8) mm; for masonry / partition board projects: flatness (0.8) mm, perpendicularity (0.5) mm, squareness (0.10) mm) for construction, and measure the actual usage to calculate the coating rate. When measuring, push the template 401 from the direction of two support rods 201 with guide grooves 702 onto multiple rollers 403 on the bracket 1 until one side of the template 401 abuts against the limit plate 402, that is, the template 401 is placed in the specified position. At this time, the hydraulic component 504 is in a slightly extended state to avoid the clamping post 705 blocking the ear plate 706, but the push frame 507 does not abut against the weighing component 506 at this time. After the template 401 is placed, the hydraulic component 504 can be fully extended. At this time, the driving frame 505 is pushed out by the telescopic end of the hydraulic component 504. Further, the push frame 507 pushes the weighing component 506 on the fixed plate 502 to rise. Four protective columns 508 can limit the weighing component 506 to prevent tilting during rising and affecting weighing. As the weighing component 506 rises, it continues to push the push frame 507. The push frame 507 jacks up the template 401 from the gap between the rollers 403 to realize the weighing of the weight of the empty template 401. After weighing, the hydraulic component 504 contracts, and the template 401 returns to its original position and abuts against the rollers 403 again. Weigh the mass m1 of the blank standard template. Then, stir the plastering material according to the standard water addition amount to make a slurry, take a sufficient amount and put it into the standard template, compact it through the scraping mechanism 6, and scrape off the excess slurry with a scraper 607. At the same time, clean the slurry attached to the template 401. At this time, start the hydraulic component 504 again to realize the push frame 507 pushing the template 401 filled with the scraped slurry. The weighing component 506 measures the total mass of the template 401 and the slurry, and obtains the total mass m2 of the slurry and the template 401. The coating rate for a standard thickness of 1 cm is:

[0036] ;

[0037] where the units of m1 and m2 are Kg, K1 is the standard water addition amount, R is the coating rate, and the unit is m2 / t. That is, for 1 ton of plastering material, it is stirred into a wet slurry according to the standard consistency water addition amount. In the case of a plastering thickness of 1 cm, the area that can be coated. The larger the data, the higher the coating rate. The measurement of the coating rate of plastering gypsum is completed, and the template 401 can be quickly leveled, and the empty template 401 and the template 401 filled with slurry can be quickly weighed, without having to move the template 401 to the template 401 multiple times, which is conducive to the calculation of the coating rate.

[0038] Specifically, refer toFigure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown in

[0039] , the limiting mechanism 7 includes two connecting frames 701. On both sides of the driving frame 505, there are relatively fixedly connected connecting frames 701 with an L-shaped structure. On the two connecting frames 701, there are relatively fixedly connected two cross bars 703. On the two cross bars 703, there are equidistantly fixedly connected a plurality of hook seats 704 with an inverted L-shaped cross-section. At the bottom of the two groups of hook seats 704, there are fixedly connected clamping columns 705. On both sides of the template 401, there are equidistantly fixedly connected a plurality of ear plates 706. In each of the plurality of ear plates 706, there is provided a clamping hole 707. The clamping column 705 is inserted into the interior of the clamping hole 707. The length of the clamping column 705 is less than the distance between the pushing frame 507 and the bottom of the template 401; the cross-section of the driving frame 505 is of a U-shaped structure, and the driving frame 505 and the two connecting frames 701 are arranged in a cross shape; on the two opposite support rods 201, there are provided guiding grooves 702. The guiding grooves 702 are arranged corresponding to the ear plates 706, and the distance between the two opposite ear plates 706 is less than the distance between the two guiding grooves 702;

[0040] Specifically, referring to Figure 1 , Figure 2 , Figure 9 and Figure 10As shown, the support mechanism 2 includes a support rod 201 and a support plate 202. Two support rods 201 are fixedly connected to opposite sides of the bracket 1. The top of the four support rods 201 is fixedly connected to a support plate 202. The distance between two opposite ear plates 706 is greater than the distance between two opposite support rods 201. The scraping mechanism 6 includes a guide plate 602. The guide plate 602 is fixedly connected to the side wall of the support plate 202. A lead screw 604 is rotatably connected to the guide plate 602. A second motor 601 is installed on the support plate 202. The output end of the second motor 601 is fixedly connected to the lead screw 604. A moving plate 603 that abuts against the bottom of the support plate 202 and the guide plate 602 is threadedly connected to the lead screw 604. Slide plates 605 are alternately slidably connected to both sides of the moving plate 603. Tooth-like projections 612 are equidistantly arranged on the opposite sides of the two slide plates 605. A tooth shaft 611 is rotatably connected to the moving plate 603. The tooth shaft 611 meshes with the two groups of tooth-like projections 612. A third motor 606 is installed on the moving plate 603. The output end of the third motor 606 is fixedly connected to the tooth shaft 611. A pressing frame 608 with a U-shaped cross-section is fixedly connected to the edge of the side wall of one of the slide plates 605. Two limiting grooves 609 are oppositely formed at the bottom of the pressing frame 608. The distance between the two limiting grooves 609 is equal to the width of the template 401. A plurality of micro-vibration motors 610 are installed on the top of the pressing frame 608. A scraping ruler 607 is installed at the bottom of the other slide plate 605;

[0041] The slurry is poured into the interior of the template 401. At this time, the clamping column 705 is clamped in the inside of the clamping hole 707, and the template 401 is horizontally limited. The second motor 601 is started to drive the screw rod 604 to rotate. Furthermore, since the movable plate 603 is threadedly connected with the screw rod 604, and the movable plate 603 is limited by the guide plate 602 and the support plate 202, the screw rod 604 drives the movable plate 603 to move horizontally in the direction of the second motor 601 as the second motor 601 rotates. When the pressure frame 608 on the side wall of one of the slides 605 moves to the top of the template 401, the third motor 606 is started to realize the rotation of the gear shaft 611 and the clamping tooth 612 to drive the two slides 605 to move in opposite directions. When the two limiting grooves 609 at the bottom of the pressure frame 608 are aligned with the template 401, the clamping grooves 612 are engaged with the two limiting grooves 609 at the bottom of the pressure frame 608. After the top of the plate 401 hits, the micro-vibration motor 610 is started to vibrate the slurry inside the template 401. The movable plate 603 can be driven by the screw rod 604 to move to various places on the top of the template 401, which is conducive to evenly vibrating the slurry. After the vibration is completed, the motor three 606 rotates in the opposite direction for a certain angle, and the motor two 601 is driven to move the movable plate 603 to the inner edge of the template 401. The motor three 606 is started again to realize the lowering of another slide plate 605. The scraper 607 can be inserted into the internal slurry of the template 401. After adjusting the insertion depth, the motor two 601 is started again. The scraper 607 moves horizontally to scrape off the excess slurry, which can avoid the problem of uneven manual scraping. The excess slurry on the edge of the template 401 can be cleaned and weighed.

[0042] Specifically, refer to Figure 1 , Figure 2 and Figure 3 As shown, the diffusion detection mechanism 3 includes a base 301, the support plate 202 is mounted with the base 301, the base 301 is slidably connected with a push rod 309, the push rod 309 is welded with a placement plate 302, the base 301 is threadedly connected with a limit nut 310 that interferes with the push rod 309, a truncated cone circular mold 303 is placed on the placement plate 302, a mold sleeve 304 is placed on the truncated cone circular mold 303, a tamping rod 305 is placed inside the mold sleeve 304, a motor 306 is horizontally mounted on the base 301, the output end of the motor 306 is fixedly connected with a protrusion 308 that interferes with the push rod 309, a controller 307 is mounted on the support plate 202, and the controller 307 is electrically connected to the motor 306;

[0043] When testing the spread of the slurry, before the test, wipe the placement tray 302, the rammer 305, the frustum cone mold 303 and the mold sleeve 304 with a wet cloth. Connect the frustum cone mold 303 with the mold sleeve 304, cover it with a wet cloth, weigh an appropriate amount of plastering gypsum sample (about 8 kg), accurate to 1 g. Add water estimated to be the water consumption for the standard spread in the mixing bucket, and stir for 2 minutes using the general mixing equipment and mixing method on the construction site to obtain a uniform gypsum slurry. Quickly fill the frustum cone mold 303 in two layers. The first layer is filled to two-thirds of the height of the frustum cone mold 303, and use the cylindrical rammer 305 to evenly tamp 15 times from the edge to the center. Then fill the second layer of slurry, filling it to about 20 mm above the frustum cone mold 303, and also use the cylindrical rammer 305 to evenly tamp 10 times from the edge to the center. The tamping depth is: for the first layer, tamp to one-third of the height of the slurry; for the second layer, tamp to no more than the surface of the already tamped bottom layer. When filling and tamping the slurry, hold the frustum cone mold 303 by hand to avoid movement. After tamping, remove the mold sleeve 304, use a leveling knife to scrape off and level the slurry above the frustum cone mold 303. Then gently lift the frustum cone mold 303 vertically upward. The time from filling the slurry to lifting the frustum cone mold 303 is 2 minutes. Immediately leave the support plate 202, start the first motor 306 to drive the protrusion 308. The controller 307 can control the rotation speed of the first motor 306 and continuously tap the push rod 309 fifteen times at a speed of once per second. After the jumping is completed, measure the diameter of the test cake in two mutually perpendicular directions, accurate to 1 mm, and calculate the average value of the diameters in the two directions, which is the standard spread. For the bottom layer and lightweight bottom layer plastering gypsum, it should be equal to (165 ± 5) mm. Otherwise, re-sample, change the water addition amount, re-stir the gypsum slurry and conduct the experiment again until the requirements are met. It is prohibited to use the same slurry to add water and stir it for the second time. Record the water addition amount when the spread of the gypsum slurry is the standard spread. The ratio of this water amount to the mass of the sample (expressed as a percentage, accurate to 1%) is the water consumption for the standard spread (K1).

[0044] When the present invention is in use, first, when detecting the slump of the slurry, before the test, wipe the placing plate 302, the rammer 305, the frustum mold 303 and the mold sleeve 304 with a wet cloth, connect the frustum mold 303 with the mold sleeve 304, cover it with a wet cloth, weigh an appropriate amount of plastering gypsum sample (about 8 kg), accurate to 1 g, add water estimated to be the water consumption for the standard slump in the mixing bucket, and stir for 2 minutes using the general mixing equipment and mixing method on the construction site to obtain a uniform gypsum slurry. Quickly fill the frustum mold 303 in two layers. The first layer is filled to two-thirds of the height of the frustum mold 303, and the cylindrical rammer 305 is used to evenly tamp 15 times from the edge to the center. Then, fill the second layer of slurry until it is about 20 mm higher than the frustum mold 303, and also use the cylindrical rammer 305 to evenly tamp 10 times from the edge to the center. The tamping depth is: for the first layer, tamp to one-third of the height of the slurry; for the second layer, tamp to not exceed the surface of the already tamped bottom layer. When filling and tamping the slurry, hold the frustum mold 303 by hand to avoid movement. After tamping, remove the mold sleeve 304, use a leveling knife to scrape off and level the slurry that is higher than the frustum mold 303. Then, gently lift the frustum mold 303 vertically upward. The time from filling the slurry to lifting the frustum mold 303 is 2 minutes. Immediately leave the support plate 202, start the first motor 306 to drive the protrusion 308, and the controller 307 can control the rotation speed of the first motor 306 to continuously strike the push rod 309 fifteen times at a speed of once per second. After the jumping is completed, measure the diameter of the test cake in two mutually perpendicular directions, accurate to 1 mm, and calculate the average value of the diameters in the two directions, which is the standard slump. For the bottom layer and lightweight bottom layer plastering gypsum, it should be equal to (165 ± 5) mm. Otherwise, re-sample, change the water addition amount, re-stir the gypsum slurry and conduct the experiment again until the requirements are met. It is prohibited to use the same slurry to add water and stir it for the second time. Record the water addition amount when the slump of the gypsum slurry is the standard slump. The ratio of this water amount to the mass of the sample (expressed as a percentage, accurate to 1%) is the water consumption for the standard slump (K1);

[0045] Then, during the coating test of plastering gypsum, prepare a template 401. For laboratory tests, an aluminum alloy template with internal dimensions of 50*25*2 cm (length * width * thickness) is used as the standard template, with a dimensional error of less than ±0.02 cm. On-site, select a base wall that meets the actual measurement standards (for concrete structure projects: flatness (0.8) mm, perpendicularity (0.8) mm; for masonry / partition board projects: flatness (0.8) mm, perpendicularity (0.5) mm, squareness (0.10) mm) for construction and measure the actual usage to calculate the coating rate. During measurement, push the template 401 from the direction of the two support rods 201 with guide grooves 702 onto the multiple rollers 403 on the bracket 1 until one side of the template 401 abuts against the limit plate 402, that is, the template 401 is placed in the designated position. At this time, the hydraulic component 504 is in a slightly extended state to avoid the clamping post 705 blocking the ear plate 706, but the push frame 507 does not abut against the weighing component 506 at this time. After the template 401 is placed, the hydraulic component 504 can be fully extended. At this time, the driving frame 505 is pushed out by the telescopic end of the hydraulic component 504. Further, the push frame 507 pushes the weighing component 506 on the fixed plate 502 to rise. The four protective columns 508 can limit the weighing component 506 to prevent tilting during rising and affecting weighing. As the weighing component 506 rises, it continues to push the push frame 507. The push frame 507 jacks up the template 401 from the gap between the rollers 403 to achieve weighing the weight of the empty template 401. After weighing, the hydraulic component 504 contracts, and the template 401 returns to its original position and abuts against the rollers 403 again, weighing the mass m1 of the blank standard template;

[0046] Next, the plastering material is stirred into slurry according to the standard amount of water. When the hydraulic assembly 504 is in the contracted state, that is, the push frame 507 does not resist the template 401, and the driving frame 505 is in the original position, the two connecting frames 701 located on the sides of the driving frame 505 are not driven, and the hook seats 704 on the two cross bars 703 do not rise. Then, after the template 401 is placed, the card column 705 at the bottom of the hook seat 704 will be inserted into the card hole 707 on the ear plate 706 of the side wall of the template 401, which cooperates with the horizontal limit of the limit plate 402 on the template 401, and then the slurry is added to the inside of the template 401. After that, it needs to be vibrated and scraped. The template 401 is limited by the clamping column 705, and it will not shake during scraping. Similarly, when the template 401 is weighed, the driving frame 505 will be driven up by the hydraulic component 504. Since the length of the clamping column 705 is less than the distance between the push frame 507 and the bottom of the template 401, as the driving frame 505 rises, the clamping column 705 will first be pulled out from the clamping hole 707 on the ear plate 706, and the push frame 507 will push the template 401 for weighing. The clamping column 705 will not block the rising and weighing operations of the template 401. At the same time, when not weighing, the clamping column 705 resets the limit position of the template 401 to avoid the movement of the template 401 during the scraping operation to affect the scraping.

[0047] Finally, the slurry is poured into the interior of the template 401. At this time, the clamping post 705 is engaged inside the clamping hole 707, and the template 401 is horizontally limited at this time. The second motor 601 is started to drive the lead screw 604 to rotate. Further, since the moving plate 603 is threadedly connected to the lead screw 604, and the moving plate 603 is limited by the guide plate 602 and the support plate 202, then as the second motor 601 rotates, the lead screw 604 drives the moving plate 603 to horizontally move in the direction of the second motor 601. When the pressure frame 608 on the side wall of one of the sliding plates 605 moves to the top of the template 401, the third motor 606 is started to rotate the gear shaft 611 to cooperate with the engaging teeth 612 to drive the two sliding plates 605 to move away from each other. When the two limiting grooves 609 at the bottom of the pressure frame 608 abut against the top of the template 401, the micro-vibration motor 610 is started to vibrate and compact the slurry inside the template 401. The lead screw 604 can drive the moving plate 603 to move to various parts of the top of the template 401, which is conducive to uniformly vibrating and compacting the slurry. After vibration, the third motor 606 rotates in the reverse direction by a certain angle, and the second driving motor 601 moves the moving plate 603 to the inner edge of the template 401. The third motor 606 is started again to lower the other sliding plate 605. The scraping ruler 607 can be inserted into the slurry inside the template 401. After adjusting the insertion depth, the second motor 601 is started again, and the scraping ruler 607 horizontally moves to scrape off the excess slurry, which can avoid the problem of uneven manual scraping. After cleaning the excess slurry on the edge of the template 401, it can be weighed; at this time, the hydraulic component 504 is started again to push the template 401 with the scraped slurry by the pushing frame 507, and the weighing component 506 measures the total mass of the template 401 and the slurry, and obtains the total mass m2 of the slurry and the template 401. The coating rate for a standard thickness of 1 cm is:

[0048] ;

[0049] where m1 and m2 are in Kg, K1 is the standard water addition amount, R is the coating rate, in m2 / t. That is, for 1 ton of plastering material, it is stirred into wet slurry according to the standard consistency water addition amount. In the case of a plastering thickness of 1 cm, the coatable area. The larger the data, the higher the coating rate. The measurement of the coating rate of the plastering gypsum is completed, and the template 401 can be quickly leveled, and the empty template 401 and the template 401 filled with slurry can be quickly weighed without moving the template 401 to the template 401 multiple times, which is conducive to the calculation of the coating rate.

[0050] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0051] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A plaster coating rate measuring device, characterized in that: It comprises a support (1), a coating rate testing mechanism (4) and a weighing mechanism (5) mounted on the support (1), wherein the weighing mechanism (5) is located at the bottom of the coating rate testing mechanism (4); The coating rate testing mechanism (4) comprises a roller (403), the bracket (1) is rotatably connected to the roller (403), a template (401) is placed on the roller (403), and two sides of the template (401) are fixedly connected to a plurality of ear plates (706) at equal distances; The weighing mechanism (5) comprises a side frame (501), two side frames (501) are relatively fixedly connected to the bracket (1), a fixed plate (502) is fixedly connected between the two side frames (501), a weighing assembly (506) is placed on the fixed plate (502), a pushing frame (507) located at the bottom of the template (401) is provided on the weighing assembly (506), a mounting frame (503) is fixedly connected to the bottom of the fixed plate (502), a hydraulic assembly (504) is installed at the bottom of the mounting frame (503), an output end of the hydraulic assembly (504) passes through the mounting frame (503), a driving frame (505) is fixedly connected to the output end of the hydraulic assembly (504), the driving frame (505) passes through the fixed plate (502), and the top of the driving frame (505) is in conflict with the bottom of the weighing assembly (506); A support mechanism (2) is installed on the bracket (1), the support mechanism (2) comprising a support rod (201) and a support plate (202), two support rods (201) are relatively fixedly connected on both sides of the bracket (1), the tops of the four support rods (201) are fixedly connected with a support plate (202), and the distance between two opposite ear plates (706) is greater than the distance between the two opposite support rods (201); The support mechanism (2) is provided with a diffusion detection mechanism (3), the diffusion detection mechanism (3) comprising a base (301), the support plate (202) is provided with a base (301), the base (301) is slidably connected to a push rod (309), a placement plate (302) is welded to the push rod (309), a limit nut (310) is threadedly connected to the base (301) and abuts against the push rod (309), and a stop nut (310) is placed on the placement plate (302). A conical mold (303), a mold sleeve (304) is placed on the truncated cone mold (303), a tamping rod (305) is placed inside the mold sleeve (304), a motor (306) is horizontally mounted on the base (301), a protrusion (308) that contacts a push rod (309) is fixedly connected to the output end of the motor (306), and a controller (307) is installed on the support plate (202), and the controller (307) is electrically connected to the motor (306).

2. A plaster coating rate measuring device according to claim 1, characterized in that: A plurality of rollers (403) are arranged at equal intervals, and the plurality of rollers (403) are all rotatably connected to the bracket (1), and the tops of the plurality of rollers (403) are higher than the surface of the bracket (1).

3. A plaster coating rate measuring device according to claim 1, characterized in that: The coating rate testing mechanism (4) further comprises a limiting plate (402), the bracket (1) being fixedly connected with the limiting plate (402) which contacts the side wall of the template (401), and the two ends of the limiting plate (402) are in an arc-shaped structure.

4. A plaster coating rate measuring device according to claim 1, characterized in that: The weighing mechanism (5) further comprises a protective column (508); four rectangular-shaped protective columns (508) are fixed at the bottom of the weighing assembly (506) in a rectangular array; the protective columns (508) are slidably connected to the fixing plate (502).

5. A plaster coating rate measuring device according to claim 1, characterized in that: The weighing mechanism (5) is provided with a limiting mechanism (7) for limiting the position of the coating rate testing mechanism (4), the limiting mechanism (7) comprising two connecting frames (701), the two sides of the driving frame (505) are relatively fixedly connected to the connecting frames (701) in an L-shaped structure, the two connecting frames (701) are relatively fixedly connected to two cross bars (703), the two cross bars (703) are equidistantly fixedly connected to a plurality of hook seats (704) having an inverted L-shaped cross section, the bottoms of the two groups of hook seats (704) are fixedly connected to clamping columns (705), the plurality of ear plates (706) are provided with clamping holes (707), the clamping columns (705) are inserted into the inside of the clamping holes (707), and the length of the clamping columns (705) is less than the distance between the push frame (507) and the bottom of the template (401).

6. A plaster coating rate measuring device according to claim 5, characterized in that: The cross section of the driving frame (505) is in a U-shaped structure, and the driving frame (505) and the two connecting frames (701) are arranged in a cross shape.

7. A plaster coating rate measuring device according to claim 5, characterized in that: The limiting mechanism (7) further comprises a guide groove (702), and the two opposing support rods (201) are each provided with a guide groove (702), the guide groove (702) and the ear plate (706) are arranged correspondingly, and the distance between the two opposing ear plates (706) is smaller than the distance between the two guide grooves (702).

8. A plaster coating rate measuring device according to claim 1, characterized in that: A scraping mechanism (6) is installed on the support mechanism (2). The scraping mechanism (6) includes a guide plate (602). The side wall of the support plate (202) is fixedly connected with the guide plate (602). A lead screw (604) is rotatably connected to the guide plate (602). A second motor (601) is installed on the support plate (202). The output end of the second motor (601) is fixedly connected to the lead screw (604). A moving plate (603) that abuts against the bottom of the support plate (202) and the guide plate (602) is threadedly connected to the lead screw (604). Sliding plates (605) are alternately slidably connected to both sides of the moving plate (603). Tooth-like projections (612) are equidistantly arranged on the opposite sides of the two sliding plates (605). A toothed shaft (611) is rotatably connected to the moving plate (603). The toothed shaft (611) is meshed with the two groups of tooth-like projections (612). A third motor (606) is installed on the moving plate (603). The output end of the third motor (606) is fixedly connected to the toothed shaft (611). A pressing frame (608) with a U-shaped cross-section is fixedly connected to the edge of the side wall of one of the sliding plates (605). Two limiting grooves (609) are oppositely formed at the bottom of the pressing frame (608). The distance between the two limiting grooves (609) is equal to the width of the template (401). A plurality of micro-vibration motors (610) are installed on the top of the pressing frame (608). A scraping ruler (607) is installed at the bottom of the other sliding plate (605).

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