CN115032040A - Civil engineering laboratory sample production testing device and method - Google Patents

Abstract

The invention provides an automatic manufacturing device for samples in a civil engineering laboratory, comprising a material cleaning and drying device, a concrete material distributing and stirring device, a mixer cleaning device, a cement pumping and pouring device, a vibrating film coating device, and a steel bar binding device arranged in sequence. And the test equipment used to test the finished specimens. The invention realizes cleaning and drying before concrete mixing, material distribution and mixing of concrete, and automatic pouring, troweling and film coating work on the surface of the concrete mold after the vibration is completed by using the pressing roller and the film clamp, with high efficiency and low labor consumption; After the test piece is made, it is further convenient to test the test piece; at the same time, the used mixer can be cleaned in time, which is convenient and efficient.

Description

Civil engineering laboratory sample production testing device and method

technical field

The invention relates to a sample production and testing device in a civil engineering laboratory and a method thereof.

Background technique

Existing colleges or research institutes often need to carry out experiments on concrete specimens, and it is necessary to make specimens. Both smoothing and laminating are manually operated, which is time-consuming, labor-intensive and inefficient for students;

After the test piece is made, the traditional method is to further fix the test piece manually and carry out a pressure test on the test piece. To test the deformation of the cylindrical specimen under pressure, in the past, during the test, the deformation test points were fixed at one-quarter, one-half and three-quarters of the original height of the cylindrical specimen. During the pressure test process, the height of the cylindrical specimen will change, and the test point at the fixed position cannot truly reflect the deformation of the cylindrical specimen.

SUMMARY OF THE INVENTION

The present invention improves the above problems, that is, the technical problem to be solved by the present invention is to provide a civil engineering laboratory sample production and testing device and a method thereof, which are convenient and efficient to use.

The present invention is constructed in this way, it includes a material cleaning and drying device, a concrete material distributing and stirring device, a mixer cleaning device, a cement pumping and pouring device, a vibrating film coating device, a steel bar bundling device, and a device for testing the completion of the production. The test equipment for the parts, the vibrating film coating device includes a vibrating table, the vibrating table includes a base and a vibrating motor fixed on the top of the base, the output shaft of the vibrating motor is fixed with a turntable, and the The turntable is eccentrically connected to a support table, on which the mold is placed, a vertical bracket is arranged on the side of the base, and a swingable swing rod is hinged on the top of the vertical bracket. A rollable pressing roller is laterally hinged on the rod, and a clamp capable of clamping the film is also fixed on the rear side of the vertical support. The vertical support is driven by the support driving device to move laterally. Including a pouring device located above the vibrating table, the pouring device includes a temporary storage tank, the temporary storage tank is connected with a negative pressure pipe, and there is a feeding pipe under the temporary storage tank for discharging materials, and the negative pressure pipe is provided below the temporary storage tank. The pressure pipe is provided with a negative pressure pump, and the feeding pipe is provided with a solenoid valve for controlling the opening and closing of the feeding.

Further, the test equipment includes a machine base, an upper hydraulic lifting seat and a lower hydraulic lifting seat arranged on the machine base, the upper hydraulic lifting seat and the lower hydraulic lifting seat are both driven to lift by a hydraulic cylinder, and the upper hydraulic lifting seat is lifted and lowered. The side of the seat and the lower hydraulic lifting seat is provided with a displacement meter moving device, the displacement meter moving device includes a first base and a second base that slides on the first base, and the two sides of the first base are provided with limiting The first base is driven by the first electric cylinder to move; the first base is provided with second grooves on both sides of the second base to limit its movement, and the second base There is an installation frame and a first screw rod vertically arranged on the installation frame, the first screw rod is driven to rotate by a third motor set on the installation frame, and the first screw rod has three threads on the axial direction, each The segment threads are respectively screwed with screw sleeves, and each screw sleeve is connected with a horizontally arranged displacement gauge; the first base is a rectangular plate body, and the first channel is formed by a curved strip with a "7"-shaped cross-section. Formed, two "7"-shaped turning strips are arranged on both sides of the first base, that is, the movement of the first base is limited; the second base is a rectangular plate body, and the second channel is formed by The cross-section is formed by a "7"-shaped turning bar, and two "7"-shaped turning bars are arranged on both sides of the second base, that is, the movement of the second base is limited; The vertical plate on the second base and the horizontal plate arranged on the upper part of the vertical plate, the horizontal plate and the second base are installed with threaded bearings for rotating the hinged first screw; the first screw has three threads from top to bottom The screw pitch ratio is 3:2:1; the surface of the lower hydraulic lifting seat is provided with a clamping claw for installing and clamping the specimen, and the clamping claw is driven and clamped by an air cylinder or a hydraulic cylinder.

Further, a visual camera or a laser sensor is fixed on the temporary storage tank.

Further, the support table includes a lower support table eccentrically hingedly connected with the turntable and an upper support table connected with the upper part of the lower support table through a spring, the surface of the upper support table has a limit hole, and the limit hole is inserted into the upper support table. A limit rod of the limit mold; a vertically arranged film support is fixed on the side of the base, a film conveying roller is hinged on the film support, and a film is wound on the film conveying roller, and the clamp includes A pair of splints fixedly connected by bolts, one of the splints is fixed on the swing rod, and the film is clamped between the two splints; the vertical support has a pair, and the swing rods of the two vertical supports are connected by connecting rods , the pressing roller is hingedly connected to the connecting rod, the length of the pressing roller is consistent with the side length of the corresponding mold side, the bottom of the vertical support is fixed with a slider, and the two sides of the base are fixed with a slider matching with the slider A guide rail, the matching surface of the guide rail and the sliding block is I-shaped, and the bracket driving device is a bracket electric cylinder.

Further, the temporary storage tank is arranged on a manipulator, and the manipulator includes a base and a first motor with a vertical output shaft fixed on the base, and an output shaft of the first motor is fixedly connected with a vertical output shaft. The second motor, the output shaft of the second motor is fixedly connected with a first swing arm, the upper end of the first swing arm is fixed with a horizontal horizontal arm, and the end of the horizontal arm is hingedly connected to the temporary storage tank through a bearing.

Further, the reinforcing bar bundling device includes a hollow rectangular frame, the upper surface of the rectangular frame is evenly fixed with a reinforcing bar fixing seat, and the reinforcing bar fixing seat includes a pair of oppositely arranged turn-shaped supports, the turning-shaped The gap between the longitudinal portions of the supports forms a gap for falling into the steel bars, the bottom of the rectangular frame is fixed with a bottom plate, and the center of the bottom plate is fixed with a motor for driving the rectangular frame to rotate the frame.

Further, the lower end of the frame motor is fixed on a sliding seat, the sliding seat is driven by an electric cylinder to move horizontally, the upper side of the frame has a steel bar lowering hopper for storing steel bars, and the middle part of the steel bar lowering hopper has a steel bar lowering hopper. Rebar output rollers for outputting steel bars, the steel output rollers are driven by a motor to rotate, the surface of the steel output rollers is provided with grooves for outputting steel bars at intervals, and both sides of the steel bar hopper are close to the surface of the steel output rollers to prevent steel bars Comes out from the side part, the bottom of the steel bar lowering hopper has a feeding opening, the sliding seat has a sliding rail under the sliding seat, and the mating surface of the sliding seat and the sliding rail is I-shaped; the longitudinal part of the turning-shaped support is higher than two times the diameter of the steel bar, the transverse part of the turn-shaped support is fixed on the upper surface of the rectangular frame by bolts, the transverse part of the turn-shaped support has bolt holes for the bolts to pass through, and the upper surface of the rectangular frame has The grooves or bolt holes for the bolts to pass through, and the reinforcing steel fixing seats fixed on the opposite sides of the rectangular frame are symmetrically arranged.

Further, the material cleaning and drying device includes a first vibrating screen, upper and lower washing heads arranged above and below the first side of the first vibrating screen, and the upper and lower washing heads face the first Vibrating screen, the second side above the first vibrating screen is provided with a hot air nozzle, the hot air nozzle is facing the first vibrating screen, the first end of the first vibrating screen is higher than the second end, and the first end of the first vibrating screen is higher than the second end. The first end of a vibrating screen is connected to the first inclined plate and the first inclined conveyor belt in sequence, and the second end of the first vibrating screen is connected to the second inclined plate and the second inclined conveyor belt in sequence; the upper flushing head and the lower flushing heads respectively have three, the three upper flushing heads are parallel to each other and form an angle of 120 degrees with the horizontal plane, and the three lower flushing heads are parallel to each other and form an angle of -120 degrees with the horizontal plane; There is a water holding tank below, the water holding tank is connected to the water delivery pipe and the water delivery pump in turn, and then communicated with the upper flushing head and the lower flushing head through the pipeline; A hook is arranged on its side to hang on the side wall opening of the water tank; the output end of the first inclined conveyor belt is higher than the first end of the first vibrating screen, and the first inclined plate is The output end of the conveyor belt is downward and inclined to the first end of the first vibrating screen; the input end of the second inclined conveyor belt is lower than the second end of the first vibrating screen, and the second inclined plate The second end of the vibrating mesh screen faces downward and is inclined to the input end of the second inclined conveyor belt; the output end of the second inclined conveyor belt leads to the material tank located on the frame; the upper part of the frame is provided with A plurality of material tanks, each material tank is provided with a weighing hopper below the weighing hopper, a mixer is provided below the weighing hopper, and a discharge hopper car located on the discharge track is provided below the discharge port of the mixer; The frame includes a plurality of upright poles, a first platform and a second platform arranged on the poles, the second platform is higher than the first platform, and the material tank is arranged in the hole of the second platform, so The first platform is provided with a funnel, the weighing hopper is fixed on the frame of the first platform, the lower discharge port of the weighing hopper is facing the upper opening of the funnel; the lower part of the material tank is provided with a material guide channel, The lower outlet of the material guide channel is exactly the upper opening of the weighing bucket.

Further, the concrete material distributing and mixing device includes a frame, a plurality of material tanks are arranged on the upper part of the frame, a weighing hopper is arranged below each material tank, and a mixer is arranged below the weighing hopper. , a discharge hopper car located on the discharge track is arranged below the discharge port of the mixer; the frame includes a plurality of upright poles, a first platform and a second platform arranged on the poles, the first platform The second platform is higher than the first platform, the material tank is set in the channel of the second platform, the first platform is provided with a funnel, the weighing hopper is fixed on the frame of the first platform, and the lower part of the weighing hopper is The discharge port is facing the upper opening of the funnel; the lower part of the material tank is provided with a material guide channel, and the lower outlet of the material guide channel is just opposite to the upper opening of the weighing hopper; The shape of each batching and material tank is a cylindrical body, and the lower part is equipped with a control valve, and each control valve is connected with a material guide channel, and the lower outlet of the material guide channel is facing the upper opening of the corresponding weighing hopper; There are load cells between the first platform, the second platform, the material tank and the weighing hopper to realize weighing. The weighing sensors of the material tank and the weighing hopper are C3 and C6 grades respectively.

Further, the mixer cleaning device includes a linear guide rail located on the side of the mixer and a guide base that can move along the linear guide rail, a lift table is arranged above the guide base, and a rotatable nozzle is arranged above the lift table above the mixer. The high-pressure water gun at the opening, the water tank, and the water pump used to transport the water in the water tank to the high-pressure water gun; the high-pressure water gun includes a high-pressure water pipe in a turn-shaped or curved shape, and the upper end of the high-pressure water pipe is provided with a high-pressure water pipe located above the mixer The high-pressure nozzle is provided with high-pressure nozzles on the peripheral side and the bottom; the bottom of the high-pressure water pipe is provided with a support shaft, the lifting platform is provided with a bearing for the support shaft to pass through, and the lifting platform is provided with a support shaft. A motor that drives the rotation of the support shaft; the high-pressure water pipe and the water pump are connected by a hose; the inside of the guide seat is provided with a cylinder for driving the lifting platform to move up and down, and a guide column is also arranged between the lifting platform and the guide seat .

Further, the working method of the sample production and testing device in the civil engineering laboratory includes the following steps: (1) The material cleaning and drying device is started, and the materials to be processed (such as stones and sand) are input into the first vibrating screen. With the vibration of the first vibrating screen, it is conveyed from the first end to the second end. During the conveying process, the upper washing head and the lower washing head are flushed against the first vibrating screen, so that the first vibrating screen is washed. The stones and sand on the vibrating screen are washed to remove the soil attached to the stones and sand, which is beneficial to ensure the accuracy of subsequent tests; at the same time, when the stones or sand are transported to the second end of the first vibrating screen , the stones or sand on the first vibrating screen are heated by the hot air nozzle, which is conducive to drying the stones or sand and reducing the moisture content in them; (2) The concrete mixing device is started: each material is sent to each material In the tank, each material tank introduces the materials required for the corresponding test into the weighing hopper below through the valve. After each weighing hopper is satisfied with the weighing, it is controlled by the valve to enter the mixer below for stirring, and the material is discharged from the mixer after stirring. (3) The cement pumping and pouring mold device in the civil engineering laboratory and the pouring device above the vibrating table work. A visual camera is fixed on the temporary storage tank. By marking the mold, it can be fed back on the visual camera. The height of the poured concrete can be controlled by the battery valve or the negative pressure pump; (4) The mixed concrete is introduced into the mold, and the material is uniformly filled under the drive of the vibrating motor. The conveying roller is clamped between the two clamping plates, and then the two clamping plates are locked by bolts; (5) The electric cylinder of the bracket drives the two vertical brackets to move synchronously. The lower edge of the roller is lower than the concrete surface to be leveled, and then the electric cylinder of the bracket drives the vertical bracket to move, thereby driving the swing rod, the pressure roller and the clamp to move together. When the pressure roller contacts the mold, the mold itself is fixed on the upper support table Then it swings upwards after being pushed by the mold, then bypasses the upper edge of the mold, and then continues to move laterally under the action of the bracket electric cylinder. The pressure roller is rolled on the concrete surface in the mold by gravity to form a plane; (6) Since the clamp is fixed on the back side of the pendulum rod, during the movement of the vertical support, the pendulum rod drags the clamp to drag the film to cover the rolled concrete surface in the mold after the pressure roller is pressed. Then cut the film; (7) In the case of needing to insert the steel mesh, before the concrete is introduced into the mold, use the steel bar bundling device to place the steel bar in the steel bar feeding hopper along the axis of the steel bar output roller. When the rotation encounters the groove of the steel output roller, the steel bar will fall into the groove, and the depth of the groove of the steel output roller can only fall into one steel bar. When the feeding opening is exposed, it falls directly to the bottom. At this time, with the movement of the electric cylinder of the sliding block, the rectangular frame moves in the direction parallel to the axis of the output roller of the steel bar, and the steel bars falling from the feeding opening fall into the corresponding direction one by one. In each steel bar fixing seat in the same row, after the same row of steel bars is dropped, the frame motor rotates , you can continue to build in the same direction perpendicular to the previously placed steel reinforcement to complete the reinforcement layout of the reinforcement mesh, and then bind the transverse and longitudinal staggered reinforcement bars to complete the reinforcement mesh manufacturing, and then complete the reinforcement. The net is placed in the mold to be poured by a mechanical device and left to stand to make a test piece; (8) After the test piece is made, the test piece is sent to the test piece positioning seat of the test equipment by a manipulator; (9) In the test equipment The lower hydraulic lifting seat supporting the positioning seat of the specimen is lifted, and after the specimen is initially pressed by the upper hydraulic lifting seat and the lower hydraulic lifting seat in the test equipment, the manipulator is disengaged; (10) Adjustment of the displacement meter moving device in the test equipment To make the contact of the displacement meter contact the surface of the specimen; the displacement meter mobile device has three groups of displacement meters that can be adjusted in three axes, and the contact points of the three groups of displacement meters are respectively aligned with the total height of the same elevation of the specimen. 1/4, 1/2 and 3/4 positions; (11) The upper hydraulic lifting seat in the test equipment began to continuously press down; (12) During the continuous downward pressing of the upper hydraulic lifting seat, three groups of The contact point of the displacement gauge is also lowered, and the three contact drop values from bottom to top are one-quarter, one-half, and three-quarters of the lower value of the upper hydraulic lift seat, while ensuring three The contacts are in contact with the surface of the test piece.

Compared with the prior art, the present invention has the following beneficial effects: the device has a simple structure and is easy to use; the material cleaning and drying device first cleans and dries the material to remove impurities, thereby helping to ensure the accuracy of subsequent tests; the concrete material distributing and stirring device Each material is sent to each material tank, and each material tank introduces the materials required for the corresponding test into the weighing hopper below through the valve. After the weighing hopper is satisfied, it is controlled by the valve and introduced into the mixer below for stirring. After mixing, it is output from the discharge port of the mixer; the cement pumping and pouring device pumps the mixed concrete in the mixer and pours it into the mold. The surface of the concrete mold after the vibration can be wiped by using the pressing roller and the film clamp. Flattening and laminating work, high efficiency and low labor consumption; the steel bar bundling device can facilitate the manufacture of steel mesh, and then the completed steel mesh is placed into the mold to be poured through a mechanical device, and then poured through the pouring device.

After the preparation of the test piece is completed, the test piece is tested by the test equipment. During the continuous pressing process of the upper hydraulic lifting seat, the contact points of the three groups of displacement gauges are also lowered, and the three contact points from bottom to top The point drop values are one-quarter, one-half, and three-quarters of the drop value of the upper hydraulic lift seat, while ensuring that the three contacts are in contact with the surface of the test piece, thus ensuring that the tested contacts are always facing the test piece One-quarter, one-half and three-quarter positions of the total height within the same façade are beneficial to improve the accuracy of the test.

Description of drawings

Fig. 1 is the structure schematic diagram of vibrating table and pouring device of the present invention;

2 is a schematic structural diagram of a vibrating table and a film coating structure of the present invention;

3 is a schematic top view of the vibrating table and the film-coated structure of the present invention;

FIG. 4 is a schematic diagram of the state of film coating when the vertical support of the present invention is moved to the middle;

FIG. 5 is a schematic view of the rectangular frame structure of the reinforcing bar tying device of the present invention;

6 is a schematic structural diagram of the second embodiment of the reinforcing bar tying device of the reinforcing bar tying device of the present invention;

Fig. 7 is the structural schematic diagram of the steel mesh forming state of the reinforcing bar bundling device of the present invention;

8 is a schematic structural diagram of a cleaning device according to an embodiment of the present invention;

Fig. 9 is the three-dimensional structure schematic diagram of the concrete material distributing and stirring device of the civil engineering laboratory of the present invention;

Figure 10 is a partial view one of Figure 9;

Fig. 11 is the partial view two of Fig. 9;

Figure 12 is a schematic front view of the structure of the material cleaning and drying device in the civil engineering laboratory of the present invention;

Fig. 13 is the partial structure schematic diagram of Fig. 12;

FIG. 14 is a schematic diagram of the front view of the test equipment of the present invention;

Figures 15 and 16 are schematic views of the partial structure of Figure 14;

Figure 17 is a schematic structural diagram of a limit screw sleeve and a displacement gauge;

18 is a schematic top view of the structure of the first base and the first channel;

FIG. 19 is a schematic side view of the configuration of FIG. 18 .

In the picture: A10-vibration table, A101-base, A110-vibration motor, A120-turntable, A130-support table, A131-lower support table, A132-upper support table, A133-spring, A134-limit hole , A135-Limit Rod, A140-Mold, A150-Guide, A20-Vertical Bracket, A201-Bracket Electric Cylinder, A210-Swing Rod, A211-Link, A220-Press Roller, A230-Clamp, A231-Clamp, A240-Slider, A30-Film Holder, A310-Film Conveyor Roller, A410-Temporary Storage Tank, A420-Negative Pressure Tube, A430-Feed Tube, A440-Negative Pressure Pump, A450-Vision Camera, A50-Robot Arm, A510 -1st motor, A520-2nd motor, A530-1st swing arm, A540-horizontal arm, A60-rectangular frame, A610-base plate, A620-frame motor, A630-slide seat, A70-rebar fixing seat, A710-turn-shaped support, A80-rebar feeding hopper, A810-rebar output roller, A820-groove, A830-feeding port, A100-rebar;

B1-first vibrating screen, B101-first end, B102-second end, B2-upper flushing head, B3-lower flushing head, B4-hot air nozzle, B5-first inclined plate, B6-first inclined conveying Belt, B7-Second Inclined Plate, B8-Second Inclined Conveyor Belt, B801-Input, B802-Output, B9-Water Tank, B10-Water Pipe, B11-Water Pump, B12-Pipeline, B13-Filter Net bag, B14-bending hook, B15-material tank, B16-weighing hopper, B17-mixer, B18-discharge hopper truck, B19-discharge rail, B20-frame, B21-pole, B22-first platform, B23-Second Platform, B24-Funnel, B25-Frame, B26-Material Guide Channel, B27-Linear Guide, B28-Guide Base, B29-Lifting Table, B30-High-Pressure Water Gun, B31-High-Pressure Water Pipe, B32-High-Pressure Spray Head, B33-high pressure nozzle, B34-support shaft, B35-water tank, B36-water pump, B37-bearing, B38-motor, B39-hose, B40-cylinder, B41-guide column;

C1-base, C2-upper hydraulic lift seat, C3-lower hydraulic lifter, C4-displacement meter moving device, C5-first base, C6-second base, C7-first channel, C8-first electrical Cylinder, C9-Second Channel, C10-Mounting Frame, C11-First Screw, C12-Third Motor, C13-Limiting Screw Sleeve, C14-Displacement Gauge, C15-Vertical Plate, C16-Cross Plate, C17- Threaded bearing, C18-jaw.

Detailed ways

The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

Embodiment 1: As shown in Figures 1 to 4, in this embodiment, a civil engineering laboratory sample production and testing device is provided, including a material cleaning and drying device, a concrete material distributing and stirring device, a mixer cleaning device, and a cementitious device. Pumping casting device, vibrating film device, steel bar bundling device and testing equipment for testing finished specimens.

The above-mentioned vibrating film coating device includes a vibrating table A10, the vibrating table includes a base A101 and a vibrating motor A110 fixed on the top of the base, the output shaft of the vibrating motor is fixed with a turntable A120, and the turntable is The upper eccentric is connected to a support table A130 on which the mold A140 is placed.

In this embodiment, a vertical support A20 is provided on the side of the base, a swingable swing rod A210 is hinged on the top of the vertical support, and a rollable pressure roller A220 is laterally hinged on the swing rod , the rear side of the vertical support is also fixed with a clamp A230 capable of clamping the film, and the vertical support is driven by the support driving device to move laterally.

In this embodiment, the vertical brackets A20 have a pair, the swing bars of the two vertical brackets are connected by a connecting rod A211, and the pressing roller A220 is hingedly connected to the connecting rod A211.

In this embodiment, a vertically arranged film support A30 is fixed on the side of the base, and a rotatable film conveying roller A310 is hinged on the film support A30, and a film is wound on the film conveying roller. The clamp A230 includes a pair of clamping plates A231 fixedly connected by bolts, one of the clamping plates is fixed on the swing rod, and the film is sandwiched between the two clamping plates.

In this embodiment, the bracket driving device is a bracket electric cylinder A201, the length of the pressing roller is consistent with the side length of the corresponding mold, the bottom of the vertical bracket is fixed with a slider A240, and the two sides of the base A101 are fixed There is a guide rail A150 matched with the slider, and the matching surface of the guide rail and the slider is I-shaped.

In this embodiment, the cement pumping and casting device includes a pouring device located above the vibrating table, and the pouring device includes a temporary storage tank A410, the temporary storage tank is connected to the negative pressure pipe A420, and the temporary storage tank A420 Below the tank is a feeding pipe A430 for discharging materials, a negative pressure pump A440 is provided on the negative pressure pipe, and a solenoid valve for controlling the opening and closing of the feeding is provided at the feeding pipe A430.

In this embodiment, a visual camera A450 is fixed on the temporary storage tank. By marking the mold, the visual camera can feed back the height of the poured concrete, so that the battery valve or the negative pressure pump A440 can be used to output the amount of concrete. control;

In the actual design, the laser ranging sensor can also be used to feed back the height of the concrete in the mold to set the concrete supply.

In this embodiment, the feeding tube A430 is generally arranged just above the mold on which the support table is placed. In order to ensure that the concrete entering the mold can evenly and fully fill the mold cavity, the support table A130 includes a lower part that is eccentrically hingedly connected to the turntable. The supporting platform A131 and the upper supporting platform A132 connected with the upper part of the lower supporting platform through the spring A133 can be used to drive the supporting platform A130 to rotate around the axis of the rotary plate and the shaft of the vibrating motor A110 during the rotation of the turntable, and the spring A133 can be used to realize the up and down. Vibration promotes adequate penetration of concrete into all areas of the mold.

In order to fix the mold, the upper support table A132 has a limit hole A134 on the surface, a limit rod A135 for limiting the mold is inserted into the limit hole, and a plurality of limit holes are evenly distributed on the surface of the upper support table, so that it can be Corresponding molds of different sizes and structures.

When working, the mixed concrete is introduced into the mold, and the material is filled evenly under the drive of the vibrating motor A110. Then the bracket electric cylinder 201 drives the two vertical brackets to move synchronously, and then the vertical bracket moves in the process. In the initial state, the lower edge of the pressure roller is lower than the concrete surface to be leveled, and then the bracket electric cylinder A201 drives the vertical bracket A20 to move, thereby driving the swing rod, the pressure roller and the clamp to move together. The mold itself is fixed on the upper support table A132, and then swings upwards after being pushed by the mold, then bypasses the upper edge of the mold, and then continues to move laterally under the action of the bracket electric cylinder, and the pressure roller is pressed in the mold by gravity. The concrete surface is rolled to form a flat surface.

The vertical brackets located on both sides of the base move synchronously, and the bracket electric cylinder can be set only on one side, and the stability during the movement is ensured by the cooperation of the guide rail and the slider.

Before working, the clamp A230 clamps the film conveying roller A310 between the two clamping plates A231, and then locks the two clamping plates with bolts. , the pendulum rod A210 drags the clamp A230 to drag the film to cover the rolled concrete surface in the mold after the roller is pressed, and then cut the film.

Example 2: The temporary storage tank is set on a manipulator A50, the manipulator includes a base and a first motor A510 with a vertical output shaft fixed on the base, and the output shaft of the first motor is fixedly connected with an output shaft It is a longitudinal second motor A520, the output shaft of the second motor is fixedly connected with a first swing arm A530, the upper end of the first swing arm is fixed with a horizontal horizontal arm A540, and the end of the horizontal arm passes through a bearing. It is hingedly connected to the temporary storage tank, and the position of the temporary storage tank A410 can be adjusted by the first motor and the second motor. The negative pressure pump A440 inputs the mixed concrete into the temporary storage tank through the negative pressure pipe. The feeding pipe A430 is kept facing the lower part, and the opening and closing of the feeding pipe A430 is controlled by a solenoid valve.

Embodiment 3: As shown in FIGS. 5 to 7 , in this embodiment, a reinforcing bar tying device is provided on the side of the vibrating table A10, including a hollow rectangular frame A60, and the upper surface of the rectangular frame is uniformly fixed. There is a steel bar fixing seat A70, the steel bar fixing seat A70 includes a pair of turning-shaped supports A710 arranged opposite to each other, the gap between the longitudinal parts of the turning-shaped supports A710 forms a gap falling into the steel bar A100, and the rectangular frame A bottom plate A610 is fixed at the bottom of the A60, and a motor A620 for driving the rectangular frame to rotate the frame is fixed in the center of the bottom plate.

In this embodiment, the longitudinal portion of the crooked support A710 is higher than twice the diameter of the steel bar, and the transverse portion of the crooked support is fixed on the upper surface of the rectangular frame by bolts. There are bolt holes for bolts to pass through, and the upper surface of the rectangular frame has grooves or bolt holes for bolts to pass through.

When working, install the steel bar fixing seat A70 on the rectangular frame A60 according to the size of the steel mesh and the spacing between the steel bars, and put the steel bar into the steel bar fixing seat A70 on the corresponding two sides in the longitudinal or horizontal direction, and the steel bar falls into the turn-shaped support. A710 is limited between the longitudinal parts. When the steel bars in the same row are placed in the same row, the frame motor A620 rotates 90 degrees, and you can continue to build in the same direction perpendicular to the previously placed steel bars to complete the steel bar layout that constitutes the steel mesh. It is enough to bind the staggered steel bars horizontally and vertically.

In this embodiment, in order to facilitate the unloading of steel bars, in this embodiment, the lower end of the frame motor A620 is fixed on a sliding seat A630, and the sliding seat is driven by a driving device to move horizontally, and the frame motor A620 moves horizontally. The upper side is provided with a rebar hopper 80 for storing rebar, and the middle of the rebar hopper is provided with a rebar output roller A810 for outputting rebar. For the groove A820 for outputting the rebar, the two sides of the rebar hopper are close to the surface of the rebar output roller to prevent the rebar from coming out from the side, and the bottom of the rebar hopper has a feeding port A830.

In this embodiment, the driving device is a slide electric cylinder A140, a slide rail A650 is provided under the slide base, and the mating surface of the slide base A630 and the slide rail A650 is I-shaped.

When working, the steel bar is placed in the steel bar feeding hopper along the axis of the steel bar output roller A810. When the steel bar output roller encounters the groove of the steel bar output roller, the steel bar will fall into the groove, and then due to the groove of the steel bar output roller. The depth can only fall into one steel bar. With the rotation of the steel bar output roller, when the groove is exposed from the feeding port A830 below the steel bar feeding hopper A80, it will drop directly to the bottom. At this time, with the movement of the sliding block electric cylinder A640, The rectangular frame is used to move in the direction parallel to the axis of the rebar output roller, and the rebars falling from the feeding port A830 fall into each rebar fixing seat A70 in the same row one by one. After the same row of rebars is dropped, the frame motor Rotate A620 by 90 degrees, you can continue to build in the same direction perpendicular to the previously placed steel bars to complete the steel bar layout that constitutes the steel mesh, and then bind the horizontally and vertically staggered steel bars to complete the steel mesh manufacturing. The finished steel mesh is placed into the mold to be poured through a mechanical device, and then poured through a pouring device.

During installation, the steel bar unloading hopper A80 is fixed on the ground through the support body, and the steel bar output roller is driven to rotate by the motor fixed on the support body. The reinforcing bars in the grooves are placed one by one into each reinforcing bar fixing seat A70 of the same row of rectangular frames.

Embodiment 4: As shown in Figures 8 to 13, the mixer cleaning device includes a linear guide rail B27 located on the side of the mixer and a guide base B28 that can move along the linear guide rail. A lift table B29 is provided above the guide base. A high-pressure water gun B30, a water tank B35, and a water pump B36 for transporting the water in the water tank to the high-pressure water gun are arranged above.

A guide groove matched with the linear guide rail is arranged below the above-mentioned guide seat.

The above-mentioned high-pressure water gun includes a high-pressure water pipe B31 in the shape of a bend or a bend. The upper end of the high-pressure water pipe is provided with a high-pressure nozzle B32 located above the mixer, and a high-pressure nozzle B33 is provided on the peripheral side and the bottom of the high-pressure nozzle.

The bottom of the above-mentioned high-pressure water pipe is provided with a support shaft B34. In order to strengthen the stability of the high-pressure water pipe rotation, the lifting platform is provided with a bearing B37 for the support shaft to pass through, and the lifting platform is provided with a motor for driving the support shaft to rotate. B38.

The above-mentioned high-pressure water pipe and the water pump are connected by a hose B39, and the hose needs to have a certain length to avoid affecting the rotation of the high-pressure water pipe.

The above-mentioned guide seat is provided with a cylinder B40 for driving the lifting platform to move up and down. In order to enhance the stability of the lifting platform, there are also four guide columns B41 between the lifting platform and the guide seat, and the four guide columns can be distributed. At the four corner positions of the lift table, the lower end of the guide column is fixedly connected with the guide base, and the upper end of the guide column penetrates the lift table.

When the above-mentioned civil engineering laboratory mixer cleaning device works, the guide base moves along the linear guide rail to approach the mixer B17, and the motor rotates to drive the high-pressure water pipe to rotate at a certain angle, so that the high-pressure nozzle of the high-pressure water gun moves to the opening position on the mixer, and the cylinder drives the lifting platform to descend, The high-pressure nozzle moves inside the mixer from top to bottom. The water pump pumps the cleaning liquid in the water tank to the high-pressure water pipe, and sprays out through the multiple nozzles of the high-pressure nozzle to clean the inside of the mixer. During the cleaning process, the cylinder can drive the lifting and lowering. Moving up and down the table within a certain range can make the high-pressure nozzle clean the inside of the mixer more comprehensively; in addition, it is worth mentioning here that during the cleaning process, the stirring shaft inside the mixer can also be rotated, which is conducive to better cleaning. Finally, After the cleaning is completed, the sewage is discharged from the discharge port of the mixer.

In this embodiment, a concrete distributing and stirring device is arranged above the high-pressure water gun, and the concrete distributing and stirring device includes a frame B20, and a plurality of material tanks B15 are arranged on the upper part of the rack. In addition to stones and sand, there are also cement, additives, etc.; there is a weighing hopper B16 under each material tank, a mixer B17 is installed below the weighing hopper B16, and a mixer B17 is installed below the discharge port. There is a discharge hopper car B18 located on the discharge track B19. The material tank B15 is used to contain the ingredients of the civil engineering test concrete. The material tank B15 is in the shape of a cylindrical body, and the lower part has control valves. A material guide channel B26 is connected, and the lower outlet of the material guide channel is facing the upper opening of the corresponding weighing hopper B16. After the control valve is opened, the material in the material tank B15 passes through the material guide channel B26 and enters the weighing hopper B16. The weighing hopper B16 is used for weighing, which is an existing conventional weighing hopper. There is a control valve at the lower end of the weighing hopper B16 to realize the opening and closing of the material. The mixer B17 is used for mixing materials, and the discharge hopper truck B18 is used for Conveying and discharging.

Further, for the sake of reasonable design, the above-mentioned frame B20 includes a plurality of vertical poles B21, a first platform B22 and a second platform B23 arranged on the vertical pole B21, and the frame B20 can be welded from square steel pipes. The second platform B23 is higher than the first platform B22, the material tank B15 is set in the channel of the second platform B23, the first platform B22 is provided with a funnel B24, and the weighing hopper B16 is fixed on the first platform On the frame B25, the lower discharge port of the weighing hopper B16 is facing the upper opening of the funnel B24, and there are load cells between the first platform B22, the second platform B23, the material tank B15, and the weighing hopper B16. To achieve weighing, the load cells for the material tank B15 and the weighing hopper B16 can be C3 and C6 grades respectively.

The above-mentioned frame 25 is a rectangular frame, which is formed by welding four vertical rods under the rectangular frame connected by the four horizontal rods, each weighing bucket B16 is arranged in the rectangular frame, and there is a C6 level load cell, the funnel B24 is a conical funnel, and the diameter of the opening on the conical funnel is larger than the lower size of the multiple weighing funnels B16, so that the materials in the weighing funnels B16 will all fall into the funnel B24, and the cone The lower opening of the hopper is facing the feeding port of the mixer B17.

In this embodiment, a material cleaning and drying device is provided on the front side of the material tank. The material cleaning and drying device includes a first vibrating mesh screen B1, which is arranged on the upper part of the first side part above and below the first vibrating mesh screen. The rinse head B2 and the lower rinse head B3, the upper rinse head and the lower rinse head face the first vibrating screen, the second side above the first vibrating screen is provided with a hot air nozzle B4, and the hot air nozzle faces the first vibrating screen. A mesh screen, the first end B101 of the first vibrating mesh screen B1 is higher than the second end, and the first end of the first vibrating mesh screen is connected to the first inclined plate and the first inclined conveyor belt in turn. The second end B102 of the screen is connected to the second inclined plate B7 and the second inclined conveyor belt B8 in turn; the first vibrating screen 1 can be a metal screen, which is driven by a vibrating motor to vibrate the screen to remove sediment, etc., and the upper flushing head B2 And the lower flushing head B3 can be a shower head, which can wash the soil on the stones and sand under the action of a certain water pressure. , the hot air shower head B4 can be one or more.

When working, the materials to be processed (such as stones and sand) are input to the first end of the first vibrating screen, and are transported from the first end to the second end with the vibration of the first vibrating screen. The first vibrating screen is flushed by the upper flushing head and the lower flushing head, so as to flush the stones and sand on the first vibrating screen, so that the soil attached to the stones and sand can be removed, which is conducive to ensuring The accuracy of the subsequent test; at the same time, when the stones or sand are transported to the second end of the first vibrating screen, the hot air nozzle will blow the stones or sand on the first vibrating screen, which is conducive to drying the stones or sand, Reducing the moisture content in it is also beneficial to ensure the accuracy of subsequent experiments.

Further, there are three upper flushing heads B2 and three lower flushing heads B3 respectively, the three upper flushing heads B2 are parallel to each other and form an included angle of 120 degrees with the horizontal plane, and the three lower flushing heads B3 are parallel to each other and form -120 degrees with the horizontal plane. The included angle, through this design, can improve the effect of scouring the soil on stones and sand.

The bottom of the above-mentioned first vibrating screen is provided with a water tank, and the water tank is connected to the water delivery pipe B10 and the water pump B11 successively, and then communicates with the upper flushing head and the lower flushing head through the pipeline; the upper part of the above-mentioned water holding tank B9 is provided with The filter net pocket B13 is in the shape of a groove, and is provided with a hook B14 on its side to hang on the side wall opening of the water tank B9; the muddy water flowing down from the first vibrating screen 1 is filtered by the The water entering the water holding tank B9 is relatively clean, so that a certain water circulation can be realized. Of course, the water supply of the upper flushing head B2 and the lower flushing head B3 can also come from tap water.

The output end of the first inclined conveyor belt is higher than the first end of the first vibrating screen, and the first inclined plate is inclined downward from the output end of the first inclined conveyor belt and inclined to the first end of the first vibrating screen. The input end of the above-mentioned second inclined conveyor belt B8 is lower than the second end B102 of the first vibrating screen B1, while the second inclined plate B7 faces downward from the second end B102 of the first vibrating screen B1 and is inclined to the second The input end B801 of the conveyor belt B8 is inclined; the above design can achieve better material transmission.

The output end B802 of the above-mentioned second inclined conveyor belt B8 leads to the concrete material distribution and mixing device of the civil engineering laboratory, which is located on the material tank B15 on the frame B20. To ensure that the subsequent test is more accurate, after cleaning, it is passed into the concrete distribution and mixing device of the civil engineering laboratory for material distribution and mixing.

Embodiment 5: As shown in Figures 14 to 19, the above-mentioned testing equipment includes a machine base C1, an upper hydraulic lifting seat C2 and a lower hydraulic lifting seat C3 arranged on the machine base C1, the upper hydraulic lifting seat C2 and the lower hydraulic lifting seat C3. The lifting seat C3 is driven up and down by a hydraulic cylinder or a screw nut slider mechanism. The upper hydraulic lifting seat C2 and the lower hydraulic lifting seat C3 are provided with a displacement meter moving device C4 on the side, and the displacement meter moving device C4 includes a first A base C5 and a second base C6 sliding on the first base C5, the first base C5 is provided with first grooves C7 on both sides of the first base C5 to limit its movement, the first base C5 is controlled by the first electric cylinder C8 drives to move; the first base C5 is provided with a second channel C9 on both sides of the second base C6 to limit its movement, and the second base C6 is provided with a mounting frame 10 and a vertical mounting frame C10 The first screw C11 on the mounting bracket C11 is driven to rotate by the third motor C12 provided on the mounting frame C10, and the first screw C11 has three threads in the axial direction, which are the first thread L1 , the second thread L2 and the third thread L3, each thread is screwed with a screw sleeve 13, and a guide channel for limiting the screw sleeve C13 is provided on the side of the screw, and each screw sleeve C13 is connected with a horizontal The set displacement meter C14 can be electronic or mechanical, and the electronic type can collect data in real time. When the third motor C12 drives the first screw to rotate, the first thread L1, the second screw The segment thread L2 and the third segment thread L3 drive the screw sleeve to rise and fall. Since the pitch ratio of the three segments of thread from top to bottom on the first screw is 3:2:1, so that the first screw rotates once. , the height ratio of the screw sleeve on it is 3:2:1, which can ensure that the contacts tested by the displacement meter C14 are always facing the quarter, half and quarter of the total height in the same elevation of the specimen The third position is conducive to improving the accuracy of the test. For example, the original total height of the test piece is 100mm, and the height positions of the three displacement gauge test contacts are 25mm, 50mm, and 75mm from bottom to top, and they are extruded to 90mm after the start. That is, the upper hydraulic lifting seat 2 is lowered by 10mm, and the height values of the three bottom-up displacement meter test contacts are 10mm*0.25=2.5mm, 10mm*0.50=5mm, 10mm*0.75=0.75mm, and finally, the three displacements The height positions of the test contacts are 22.5mm, 45mm, and 67.5mm from bottom to top, and the three position values are one-quarter, one-half and three-quarter positions of the total height of 90mm after extrusion, so It can ensure that the contact points tested by the displacement meter C14 are always facing the quarter, half and three quarters of the total height of the test piece in the same elevation, which is beneficial to improve the accuracy of the test.

Specifically, the first base C5 is a rectangular plate body, the first channel C7 is formed by a curved strip with a "7"-shaped cross-section, and two "7"-shaped The inflection bar can limit the movement of the first base, and the two sides of the first base are limited to slide in the grooves on both sides.

Specifically, the above-mentioned second base C6 is a rectangular plate body, the second channel C9 is formed by a curved strip with a "7"-shaped cross-section, and two "7"-shaped The inflection bar can limit the movement of the second base, and the two sides of the second base are limited to slide in the grooves on both sides.

Specifically, the above-mentioned mounting frame C10 includes a vertical plate 15 arranged on the second base and a horizontal plate 16 arranged on the upper part of the vertical plate. The threaded bearing 17, the threaded bearing C17 is supported on the lower end and the upper part of the first screw C11, this design can provide the stability of the mechanism.

In order to improve the placement stability of the test piece, the surface of the lower hydraulic lifting seat is provided with a clamping claw C18 for mounting and clamping the test piece K, and the clamping claw C18 can be driven and clamped by an air cylinder or a hydraulic cylinder.

In the process of continuously pressing down through the upper hydraulic lifting seat in the civil engineering laboratory pressure testing method of the present invention, the contact points of the three groups of displacement gauges are also lowered, and the drop value of the three contacts from bottom to top is the upper hydraulic lifting and lowering value. One-quarter, one-half, and three-quarters of the lowering value of the seat, while ensuring that the three contacts are in contact with the surface of the test piece, thus ensuring that the tested contacts are always facing the test piece in the same elevation of the total height. Quarter, one-half, and three-quarter positions, which help improve the accuracy of the test.

Unless otherwise stated in any of the technical solutions disclosed in the present invention, if it discloses a numerical range, then the disclosed numerical range is a preferred numerical range, and any person skilled in the art should understand that: the preferred numerical range is only Among the many implementable numerical values, the technical effect is relatively obvious or representative. Since the numerical values are too numerous to be exhaustive, only some numerical values are disclosed in the present invention to illustrate the technical solutions of the present invention, and the above-mentioned numerical values shall not constitute a limitation on the protection scope of the present invention.

At the same time, if the above-mentioned invention discloses or involves parts or structural parts that are fixedly connected to each other, then, unless otherwise stated, fixed connection can be understood as: detachable fixed connection (for example, using bolts or screws), or It is understood as: non-removable fixed connections (such as riveting, welding), of course, the mutual fixed connections can also be replaced by a one-piece structure (for example, integrally formed using a casting process) (except that it is obviously impossible to use the one-piece forming process).

In addition, unless otherwise stated, the terms used in any of the technical solutions disclosed in the present disclosure used to represent positional relationships or shapes include states or shapes that are similar to, similar to, or close to.

Any component provided by the present invention may be assembled from a plurality of individual components, or may be a single component manufactured by an integral molding process.

Finally it should be noted that: the above embodiment is only used to illustrate the technical scheme of the present invention and not to limit it; Although the present invention has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should understand: The specific embodiments of the invention are modified or some technical features are equivalently replaced; without departing from the spirit of the technical solutions of the present invention, all of them should be included in the scope of the technical solutions claimed in the present invention.

Claims (10)

1. a civil engineering laboratory sample production test device, is characterized in that, comprise in order to prepare successively the material cleaning and drying device, concrete material distribution and stirring device, mixer cleaning device, cement pumping and pouring moulding device, vibrating device for preparing test piece. A tamping and coating device, a steel bar bundling device, and a test equipment for testing the finished test piece, the vibrating and coating device includes a vibrating table, and the vibrating table includes a base and a vibrating motor fixed on the top of the base , the output shaft of the vibrating motor is fixed with a turntable, and the turntable is eccentrically connected to a support table, the support table is used to place the mold, the side of the base is provided with a vertical bracket, the vertical support A swingable swing rod is hinged on the top of the bracket, a rollable pressure roller is laterally hinged on the swing rod, and a clamp capable of clamping the film is also fixed on the rear side of the vertical bracket. The support driving device drives the lateral movement, the cement pumping and pouring device includes a pouring device located above the vibrating table, and the pouring device includes a temporary storage tank, the temporary storage tank is connected with the negative pressure pipe, and the temporary storage tank There is a feeding pipe below the feeding pipe for discharging materials, a negative pressure pump is arranged on the negative pressure pipe, and a solenoid valve for controlling the opening and closing of the feeding material is arranged on the feeding pipe. 2. The civil engineering laboratory sample production test device according to claim 1, wherein the test equipment comprises a machine base, an upper hydraulic lift seat and a lower hydraulic lift seat arranged on the machine base, and the upper Both the hydraulic lifting seat and the lower hydraulic lifting seat are driven up and down by hydraulic cylinders, and a displacement meter moving device is arranged on the side of the upper hydraulic lifting seat and the lower hydraulic lifting seat, and the displacement meter moving device includes a first base and a A second base slides on the base, the two sides of the first base are provided with first grooves to limit the movement of the first base, and the first base is driven to move by the first electric cylinder; the first base is located on the second base The two sides of the base are provided with second channels that limit its movement, the second base is provided with a mounting frame and a first screw rod erected on the mounting frame, and the first screw rod is formed by the first screw set on the mounting frame. Three motors are driven to rotate, the first screw has three threads on the axial direction, each thread is screwed with a screw sleeve, and each screw sleeve is connected with a horizontally arranged displacement gauge; the first base is rectangular The plate body, the first channel is formed by a "7"-shaped turning strip, and two "7"-shaped turning strips are arranged on both sides of the first base, which is to limit the first base. Move; the second base is a rectangular plate, the second channel is formed by a "7"-shaped inflection strip, and two "7"-shaped inflections are arranged on both sides of the second base bar, that is, to limit the movement of the second base; the mounting frame includes a vertical plate set on the second base and a horizontal plate set on the upper part of the vertical plate, and the horizontal plate and the second base are installed with hinges for rotating The thread bearing of the first screw rod; the pitch ratio of the three sections of threads from top to bottom on the first screw rod is 3:2:1; the surface of the lower hydraulic lifting seat is provided with a jaw for installing and clamping the specimen , the jaws are driven and clamped by an air cylinder or a hydraulic cylinder. 3. The civil engineering laboratory sample production testing device according to claim 2, wherein a visual camera or a laser sensor is fixed on the temporary storage tank; A table and an upper support table connected with the upper part of the lower support table by a spring, the surface of the upper support table has a limit hole, and a limit rod for limiting the mold is inserted into the limit hole; A vertically arranged film support is fixed, a film conveying roller is hinged on the film support, and a film is wound on the film conveying roller; On the upper side, the film is sandwiched between two splints; the vertical support has a pair, the swing bars of the two vertical supports are connected by a connecting rod, and the pressing roller is hingedly connected to the connecting rod, and the pressing roller is connected to the connecting rod. The length is consistent with the side length of the corresponding mold side, the bottom of the vertical support is fixed with a slider, the two sides of the base are fixed with guide rails matching with the slider, the matching surface of the guide rail and the slider is I-shaped, so The bracket driving device is a bracket electric cylinder. 4. The civil engineering laboratory sample production testing device according to claim 1, wherein the temporary storage tank is arranged on a manipulator, and the manipulator comprises a base and an output shaft fixed on the base is vertical A first motor, the output shaft of the first motor is fixedly connected with a second motor whose output shaft is longitudinal, the output shaft of the second motor is fixedly connected with a first swing arm, and the upper end of the first swing arm is fixed with a The horizontal cross arm is arranged horizontally, and the end of the horizontal cross arm is hingedly connected to the temporary storage tank through the bearing. 5. The civil engineering laboratory sample production and testing device according to claim 3, wherein the reinforcing bar bundling device comprises a hollow rectangular frame, and the upper surface of the rectangular frame is uniformly fixed with a reinforcing bar fixing seat, The reinforcing bar fixing seat includes a pair of oppositely arranged turn-like supports, the gap between the longitudinal parts of the turning-like supports forms a gap for falling into the steel bar, the bottom of the rectangular frame is fixed with a bottom plate, and the center of the bottom plate is fixed There is a rotating frame motor for driving the rectangular frame. 6 . The sample production and testing device in a civil engineering laboratory according to claim 5 , wherein the lower end of the frame motor is fixed on a sliding seat, and the sliding seat is driven by an electric cylinder to move horizontally, and the frame The upper side of the steel bar is provided with a steel bar lowering hopper for storing steel bars, and the middle part of the steel bar lowering hopper has a steel bar output roller for outputting the steel bar, the steel bar output roller is driven to rotate by a motor, and the surface of the steel bar output roller is The groove for outputting the steel bar, the two sides of the steel bar lowering hopper are close to the surface of the steel bar output roller to prevent the steel bar from coming out from the side, the bottom of the steel bar lowering hopper has a feeding opening, and there is a slide rail under the sliding seat, and the sliding seat and the sliding seat are connected with the sliding seat. The rail mating surface is I-shaped; the longitudinal part of the turn-shaped support is higher than twice the diameter of the steel bar, the transverse part of the turn-shaped support is fixed on the upper surface of the rectangular frame by bolts, and the The transverse part has bolt holes for bolts to pass through, the upper surface of the rectangular frame has grooves or bolt holes for bolts to pass through, and the reinforcing steel fixing seats fixed on opposite sides of the rectangular frame are symmetrically arranged. 7 . The sample production and testing device in a civil engineering laboratory according to claim 6 , wherein the material cleaning and drying device comprises a first vibrating screen, a first side part above and below the first vibrating screen. 8 . The upper flushing head and the lower flushing head are opposite to the first vibrating screen, the second side above the first vibrating screen is provided with a hot air nozzle, and the hot air nozzle is facing the first vibrating screen Screen, the first end of the first vibrating screen is higher than the second end, the first end of the first vibrating screen is connected to the first inclined plate and the first inclined conveyor belt in turn, and the first end of the first vibrating screen is connected to the first inclined plate and the first inclined conveyor belt. The two ends are connected to the second inclined plate and the second inclined conveyor belt in turn; the upper and lower flushing heads respectively have three, the three upper flushing heads are parallel to each other and form a 120-degree angle with the horizontal plane, and the three lower flushing heads are They are parallel to each other and form an included angle of -120 degrees with the horizontal plane; a water tank is arranged below the first vibrating screen, and the water tank is connected to the water delivery pipe and the water delivery pump in turn, and then connected to the upper and lower rinse heads through the pipeline. The upper part of the body of the water tank is provided with a filter net pocket, which is in the shape of a groove, and has a hook on its side to hang on the side wall opening of the water tank; the output end of the first inclined conveyor belt is high At the first end of the first vibrating screen, the first inclined plate is inclined downward from the output end of the first inclined conveyor belt and inclined to the first end of the first vibrating screen; the input end of the second inclined conveyor belt is lower than the second end of the first vibrating screen, while the second inclined plate faces downward from the second end of the first vibrating screen and is inclined to the input end of the second inclined conveyor belt; the output of the second inclined conveyor belt The end leads to the material tank located on the frame; the upper part of the frame is arranged with a plurality of material tanks, each material tank is provided with a weighing hopper, and a mixer is arranged under the weighing hopper, so the Below the discharge port of the mixer is a discharge hopper car located on the discharge track; the frame includes a plurality of upright poles, a first platform and a second platform set on the poles, the second platform Higher than the first platform, the material tank is set in the channel of the second platform, the first platform is provided with a funnel, the weighing hopper is fixed on the frame of the first platform, and the bottom of the weighing hopper discharges materials The mouth is facing the upper opening of the funnel; the lower part of the material tank is provided with a material guiding channel, and the lower outlet of the material guiding channel is exactly the upper opening of the weighing hopper. 8 . The sample production and testing device in a civil engineering laboratory according to claim 7 , wherein the concrete material distributing and stirring device comprises a frame, and a plurality of material tanks are arranged on the upper part of the frame, and each A weighing hopper is arranged below the material tank, a mixer is arranged below the weighing hopper, and a discharge hopper car located on the discharge track is arranged below the discharge port of the mixer; the frame includes a plurality of vertical The vertical pole, the first platform and the second platform are arranged on the vertical pole, the second platform is higher than the first platform, the material tank is arranged in the hole of the second platform, and the first platform is provided with a funnel , the weighing hopper is fixed on the frame of the first platform, the lower discharge port of the weighing hopper is facing the upper opening of the funnel; the lower part of the material tank is provided with a material guide channel, and the lower outlet of the material guide channel The upper opening of the weighing bucket is symmetrical; the material tank is used to contain the ingredients of the civil engineering test concrete. The lower outlet of the material guide channel is facing the upper opening of the corresponding weighing hopper; there are weighing sensors between the first platform, the second platform, the material tank and the weighing hopper, so as to realize weighing, the material tank, The load cells of the weighing hopper are C3 and C6 grades respectively. 9 . The sample production test device in a civil engineering laboratory according to claim 1 , wherein the mixer cleaning device comprises a linear guide rail located on the side of the mixer and a guide seat that can move along the linear guide rail, the guide seat A lift table is arranged above, and a high-pressure water gun, a water tank, and a water tank for transporting the water in the water tank to the high-pressure water gun are arranged above the lifting table, which can be rotated and the nozzle is located at the opening above the mixer; the high-pressure water gun includes a curved water gun. The upper end of the high-pressure water pipe is provided with a high-pressure nozzle located above the mixer, and the peripheral side and the bottom of the high-pressure nozzle are provided with high-pressure nozzles; the bottom of the high-pressure water pipe is provided with a support shaft, and the lift The platform is provided with a bearing for the support shaft to pass through, and the lifting platform is provided with a motor used to drive the support shaft to rotate; the high-pressure water pipe and the water pump are connected by a hose; the guide seat is provided with a drive for lifting and lowering A cylinder is used to move the platform up and down, and a guide column is also arranged between the lift platform and the guide base. 10. The working method of the civil engineering laboratory sample production and testing device, characterized in that, using the civil engineering laboratory sample automatic manufacturing device as claimed in claim 8, including the following working steps: (1) starting the material cleaning and drying device , the materials to be processed (such as stones and sand) are input to the first end of the first vibrating screen, and with the vibration of the first vibrating screen, they are transported from the first end to the second end, and during the conveying process from the top The flushing head and the lower flushing head are flushed against the first vibrating screen, so as to flush the stones and sand on the first vibrating screen, so that the soil attached to the stones and sand can be removed, which is beneficial to ensure the follow-up test. At the same time, when the stones or sand are transported to the second end of the first vibrating screen, the hot air nozzle will blow the stones or sand on the first vibrating screen, which is conducive to drying the stones or sand and reducing the number of them. (2) Start the concrete mixing device: send each material to each material tank, and each material tank will introduce the material required for the corresponding test into the weighing hopper below through the valve, and each weighing hopper is in the weighing hopper. After the weight is satisfied, it is controlled by the valve to introduce into the mixer below for mixing, and then output from the discharge port of the mixer after mixing; (3) The cement pumping and pouring device of the civil engineering laboratory and the pouring device above the vibrating table work. A visual camera is fixed on the storage tank. By marking the mold, the height of the poured concrete can be fed back on the visual camera, so that the battery valve or negative pressure pump can be used to control the output concrete amount; The concrete is introduced into the mold, and the material is uniformly filled under the drive of the vibrating motor. The clamp clamps the film conveying roller between the two clamp plates, and then the two clamp plates are locked by bolts; (5) The bracket electric cylinder drives the two clamp plates. The vertical support moves synchronously, and then during the movement of the vertical support, in the initial state, the lower edge of the pressure roller is lower than the concrete surface to be leveled, and then the support electric cylinder drives the vertical support to move, thereby driving the pendulum rod, pressure The roller moves together with the clamp. When the pressure roller contacts the mold, the mold itself is fixed on the upper support table, and then it is passively pushed up by the mold and then swings upward, then bypasses the upper edge of the mold, and continues under the action of the bracket electric cylinder. When moving laterally, the pressure roller is rolled on the concrete surface in the mold under the action of gravity to form a plane; (6) Since the clamp is fixed on the back side of the pendulum rod, during the movement of the vertical support, the pendulum rod drags The clamp drags the film to cover the rolled concrete surface in the mold after the pressure roller is pressed, and then cuts the film; (7) In the case of needing to insert the steel mesh, use the steel bar binding device before the concrete is introduced into the mold , Place the steel bar in the steel bar feeding hopper along the axis of the steel bar output roller. When the steel bar output roller encounters the groove of the steel bar output roller, the steel bar will fall into the groove, and the depth of the groove of the steel bar output roller can only fall A steel bar is inserted, and with the rotation of the steel bar output roller, when the groove is exposed from the discharge opening under the steel bar hopper, it will drop directly to the bottom. The rebar output roller moves in the axial direction, corresponding to the rebar falling from the discharge port one by one It falls into each steel bar fixing seat in the same row. After the same row of steel bars is dropped, the frame motor rotates, and it can continue to build in the same direction perpendicular to the previously placed steel bars to complete the steel bar layout that constitutes the steel mesh. The manufacturing of the steel mesh can be completed by binding the staggered steel bars in the horizontal and vertical directions, and then the completed steel mesh is placed in the mold to be poured by a mechanical device and left to stand to make a test piece; (8) After the test piece is made , send the specimen into the specimen positioning seat of the test equipment through the manipulator; (9) the lower hydraulic lifting seat supporting the specimen positioning seat in the testing equipment is lifted, and the upper hydraulic lifting seat and the lower hydraulic lifting seat in the test equipment are tested. After the lifting seat is initially pressed, the manipulator is disengaged; (10) The displacement meter moving device in the test equipment is adjusted so that the contact of the displacement meter contacts the surface of the test piece; the displacement meter moving device has three groups of three-axis adjustable displacement The contact points of the three groups of displacement meters are respectively aligned with one-quarter, one-half and three-quarters of the total height of the test piece in the same elevation; (11) The upper hydraulic lift in the test equipment (12) During the continuous pressing of the upper hydraulic lifting seat, the contact points of the three groups of displacement gauges also decrease, and the drop of the three contacts from bottom to top is the upper hydraulic lifting and lowering value. The seat is lowered by one-quarter, one-half, and three-quarters of the value, while ensuring that the three contacts are in contact with the surface of the test piece.

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