Mold filling and demolding machine for concrete impermeability experiment

Abstract

The utility model relates to a concrete impermeability experiment mold filling and demolding machine, and belongs to the field of concrete experiment equipment, the concrete impermeability experiment mold filling and demolding machine comprises a rack, a feeding mechanism and a pressing mechanism, the feeding mechanism is arranged on the rack and used for conveying an impermeability test piece and a cast iron mold cavity to the pressing mechanism, the feeding mechanism comprises a sliding frame and a sliding plate, the sliding frame is arranged on the rack in a sliding mode, and the sliding plate is arranged on the sliding frame; a material hole is formed in the sliding frame, the diameter of the material hole is smaller than the maximum diameter of the cast iron mold cavity and larger than the maximum diameter of the anti-permeability test piece, and the sliding plate is arranged on the sliding frame in a sliding mode and used for sealing the material hole; the pressing mechanism is arranged on the rack and is used for extruding the anti-permeability test piece from top to bottom. The device has the effects that the carrying of the impermeable test piece and the cast iron mold cavity by testers is reduced, the convenience of filling the impermeable test piece into the cast iron mold cavity and demolding the impermeable test piece from the cast iron mold cavity is improved, and the problems that the operation difficulty is large and certain safety risks exist in the process of filling and demolding the impermeable test piece are effectively solved.

Description

Technical Field

[0001] This application relates to the field of concrete testing equipment, and particularly to a concrete impermeability test mold loading and unloading machine. Background Art

[0002] When producing concrete, it is necessary to make the produced concrete into test specimens, and then test the compressive strength, impermeability, etc. of the concrete test specimens, so as to control the production quality of the concrete.

[0003] Currently, in the concrete impermeability test, after adding two layers of sealing rubber rings around the impermeability test specimen, the impermeability test specimen is loaded into the cast iron mold cavity from the end with a larger diameter of the cast iron mold cavity under pressure conditions with the assistance of a concrete pressure testing machine, and after the test is completed and the rubber ring is deformed, the pressure testing machine is used for reverse pressure to disassemble the impermeability test specimen from the cast iron mold cavity. However, the total mass of the impermeability test specimen and the cast iron mold cavity is about 20 kg. During the loading and unloading operation, the experimenter needs to carry the impermeability test specimen and the cast iron mold cavity multiple times, which is difficult to operate and poses a certain safety risk. Utility Model Content

[0004] In order to improve the problems of difficult operation and certain safety risks during the process of loading and unloading the impermeability test specimen into and out of the mold, this application provides a concrete impermeability test mold loading and unloading machine.

[0005] A concrete impermeability test mold loading and unloading machine provided by this application adopts the following technical solution:

[0006] A concrete impermeability test mold loading and unloading machine includes a frame, a feeding mechanism, and a pressing mechanism. The feeding mechanism is arranged on the frame and is used to convey the impermeability test specimen and the cast iron mold cavity to the pressing mechanism. The feeding mechanism includes a sliding frame and a sliding plate. The sliding frame is slidably arranged on the frame, and a material hole is formed on the sliding frame. The diameter of the material hole is smaller than the maximum diameter of the cast iron mold cavity and larger than the maximum diameter of the impermeability test specimen. The sliding plate is slidably arranged on the sliding frame and is used to close the material hole. The pressing mechanism is arranged on the frame and is used to extrude the impermeability test specimen from top to bottom.

[0007] By adopting the above technical solution, the experimenter slidably inserts the skateboard onto the carriage, so that the skateboard closes the material hole. Then, the smaller-diameter end of the cast iron mold cavity is placed on the skateboard, and the impermeability test piece is placed in the cast iron mold cavity. Then, the carriage is pushed to the pressing mechanism, and the carriage can drive the cast iron mold cavity and the impermeability test piece to move to the pressing mechanism. The pressing mechanism can press the impermeability test piece into the cast iron mold cavity from top to bottom. After the test is completed, the experimenter first withdraws the skateboard from the carriage, and then places the larger-diameter end of the cast iron mold cavity on the carriage, so that the larger opening of the cast iron mold cavity faces the material hole. Then, by pressing the impermeability test piece from top to bottom through the pressing mechanism, the impermeability test piece can be pressed out of the cast iron mold cavity, reducing the handling of the impermeability test piece and the cast iron mold cavity by the experimenter, improving the convenience of loading the impermeability test piece into the cast iron mold cavity and demolding it from the cast iron mold cavity, and effectively improving the problems of difficult operation and certain safety risks during the process of loading and demolding the impermeability test piece.

[0008] Optionally, a locking assembly for locking the skateboard is provided on the carriage. The locking assembly includes a locking block and a control member. The locking block is slidably arranged on the carriage. A locking groove for the locking block to be inserted into is formed on the skateboard. The control member is arranged on the frame and is used to drive the locking block to slide into or out of the locking groove.

[0009] By adopting the above technical solution, after the experimenter inserts the skateboard onto the carriage, the control member is used to drive the locking block to partially slide into the locking groove. The locking block abuts against the side wall of the locking groove, and the skateboard can be positioned on the carriage, improving the stability of the skateboard on the carriage. The experimenter can drive the locking block to slide out of the locking groove through the control member, and can conveniently directly withdraw the skateboard from the carriage.

[0010] Optionally, the control member includes a spring and a pull rod. The spring is arranged on the frame and is connected to the locking block. The spring always has a tendency to drive the locking block to slide into the locking groove. The pull rod is slidably arranged on the frame and is connected to the locking block.

[0011] By adopting the above technical solution, the tester first pulls the pull rod to make the locking block slide in a direction away from the locking groove. After the locking groove is opposite to the locking block, the pull rod is released, and the locking block can be inserted into the locking groove under the action of the spring, improving the convenience of locking the skateboard to the carriage.

[0012] Optionally, a positioning assembly for positioning the cast iron mold cavity below the pressing mechanism is provided on the frame. The positioning assembly includes clamping plates and a bidirectional screw rod. Two clamping plates are slidably arranged on the frame. The bidirectional screw rod is rotatably arranged on the frame and is threadedly connected to both clamping plates. The thread directions of the bidirectional screw rod connected to the two clamping plates are opposite.

[0013] By adopting the above technical solution, after the experimenter pushes the carriage to convey the cast iron mold cavity and the impermeability test piece under the pressing mechanism, the two clamping plates are made to approach each other by rotating the bidirectional screw rod, and the two clamping plates can be clamped on both sides of the cast iron mold cavity to position the cast iron mold cavity and improve the stability of the cast iron mold cavity on the carriage.

[0014] Optionally, the clamping plate is arranged in an arc shape adapted to the outer side wall of the cast iron mold cavity.

[0015] By adopting the above technical solution, the clamping plate in the arc shape adapted to the outer side wall of the cast iron mold cavity can have a larger contact area with the cast iron mold cavity, and the stability during clamping the cast iron mold cavity can be improved.

[0016] Optionally, the pressing mechanism includes a gantry and a hydraulic cylinder. The gantry is arranged on the frame, the hydraulic cylinder is arranged on the gantry, and the piston rod of the hydraulic cylinder faces the frame.

[0017] By adopting the above technical solution, when the piston rod of the hydraulic cylinder extends, the impermeability test piece can be extruded, and it is convenient to press the impermeability test piece into the cast iron mold cavity or press the impermeability test piece out of the cast iron mold cavity.

[0018] Optionally, the pressing mechanism includes a pressing plate, a motor and a lead screw. The pressing plate is slidably arranged on the support frame in the vertical direction. The motor is arranged on the frame, the lead screw is coaxially arranged on the output shaft of the motor, and the lead screw is threadedly connected with the pressing plate.

[0019] By adopting the above technical solution, when the motor is started, the output shaft of the motor drives the lead screw to rotate, and the lead screw can drive the pressing plate to move in the vertical direction, and the pressing plate can be pressed against the impermeability test piece, and it is convenient to press the impermeability test piece into the cast iron mold cavity or press the impermeability test piece out of the cast iron mold cavity.

[0020] Optionally, a protective cover is arranged on the frame, and the protective cover covers the lead screw inside.

[0021] By adopting the above technical solution, the protective cover covers the lead screw inside, reducing the possibility of the lead screw winding the clothes of the experimenter during rotation and improving the safety of the equipment.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. Reducing the handling of the impermeability test piece and the cast iron mold cavity by the experimenter, improving the convenience of loading the impermeability test piece into the cast iron mold cavity and demolding from the cast iron mold cavity, and effectively improving the problems of great operation difficulty and certain safety risks during the process of loading and demolding the impermeability test piece;

[0024] 2. When the locking block abuts against the side wall of the locking groove, the sliding plate can be positioned on the carriage, and the stability of the sliding plate on the carriage can be improved.

[0025] 3. Two clamping plates can be clamped on both sides of the cast iron mold cavity to position the cast iron mold cavity and improve the stability of the cast iron mold cavity on the carriage. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of the concrete impermeability test mold loading and unloading machine according to Embodiment 1 of the present application.

[0027] Figure 2 is a schematic structural diagram of the feeding mechanism according to Embodiment 1 of the present application (partial cross-sections of the carriage and the slide plate in the figure).

[0028] Figure 3 is a schematic structural diagram of Embodiment 2 of the present application.

[0029] Reference numerals: 1, frame; 2, feeding mechanism; 21, carriage; 211, material hole; 22, slide plate; 221, locking groove; 3, pressing mechanism; 31, gantry; 32, hydraulic cylinder; 33, pressing plate; 34, motor; 35, lead screw; 4, locking assembly; 41, locking block; 42, control member; 421, spring; 422, pull rod; 5, positioning assembly; 51, clamping plate; 52, bidirectional screw; 6, protective cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following will further describe the present application in detail Figures 1 - 3 with reference to the accompanying drawings.

[0031] Embodiment 1

[0032] The embodiment of the present application discloses a concrete impermeability test mold loading and unloading machine.

[0033] Referring to Figure 1 , the concrete impermeability test mold loading and unloading machine includes a frame 1, a feeding mechanism 2, a pressing mechanism 3, a locking assembly 4 and a positioning assembly 5.

[0034] Referring to Figure 1 , Figure 2, the feeding mechanism 2 is installed on the frame 1. The feeding mechanism 2 is used to convey the impermeability test piece and the cast iron mold cavity to the pressing mechanism 3. The feeding mechanism 2 includes a carriage 21 and a sliding plate 22. The carriage 21 is slidably installed on the frame 1. In this embodiment, two sets of slide rails are installed on the frame 1 at parallel intervals. Two sets of pulleys are installed at the bottom of the carriage 21. The pulleys slide in the slide rails, and the slide rails guide the pulleys, thereby guiding the carriage 21, improving the stability of the carriage 21 sliding on the frame 1, and reducing the friction between the carriage 21 and the frame 1, facilitating the tester to drive the carriage 21 to slide; a material hole 211 is opened on the carriage 21. The opening diameter of the material hole 211 is larger than the diameter of the larger end of the impermeability test piece, and the opening diameter of the material hole 211 is smaller than the diameter of the larger end of the cast iron mold cavity. The sliding plate 22 is slidably inserted into the carriage 21. The sliding plate 22 is used to close the material hole 211. In this embodiment, a chute is opened on the sliding plate 22. The sliding plate 22 slides on the side wall of the chute, and the height of the sliding plate 22 is flush with the height of the carriage 21; the pressing mechanism 3 is installed on the frame 1. The pressing mechanism 3 is used to extrude the impermeability test piece from top to bottom.

[0035] When it is necessary to press the impermeability test piece into the cast iron mold cavity, the experimenter inserts the sliding plate 22 into the carriage 21 so that the sliding plate 22 closes the material hole 211. Then, the smaller-diameter end of the cast iron mold cavity is placed on the carriage 21 and the sliding plate 22. At this time, the larger-diameter end of the cast iron mold cavity faces upward. Then, the smaller-diameter end of the impermeability test piece can be placed downward into the cast iron mold cavity. Then, the carriage 21 is pushed in the direction close to the pressing mechanism 3, and the cast iron mold cavity with the impermeability test piece can be moved below the pressing mechanism 3. Then, the impermeability test piece is pressed into the cast iron mold cavity through the pressing mechanism 3, and the mold loading of the impermeability test piece can be completed; after the test is completed, when it is necessary to demold the impermeability test piece from the cast iron mold cavity, the experimenter first pulls out the sliding plate 22 from the carriage 21, places the larger-diameter end of the cast iron mold cavity on the carriage 21 so that the impermeability test piece is aligned with the material hole 211, and then extrudes the impermeability test piece through the pressing mechanism 3, and the impermeability test piece can be extruded from the cast iron mold cavity, completing the demolding of the impermeability test piece from the cast iron mold cavity. Through the conveyance of the cast iron mold cavity and the impermeability test piece by the carriage 21, the handling of the impermeability test piece and the cast iron mold cavity by the experimenter is reduced, the convenience of loading the impermeability test piece into the cast iron mold cavity and demolding from the cast iron mold cavity is improved, and the problems of great operation difficulty and certain safety risks in the process of loading and demolding the impermeability test piece are effectively improved.

[0036] Refer to Figure 2, the locking component 4 is installed on the carriage 21. The locking component 4 is used to lock the slide plate 22 on the carriage 21. The locking component 4 includes a locking block 41 and a control member 42. The locking block 41 is slidably installed on the carriage 21. In this embodiment, a guiding groove is formed on the carriage 21, and the locking block 41 is slidably installed on the side wall of the guiding groove. A locking groove 221 is formed on the slide plate 22. When the slide plate 22 closes the material hole 211, the locking groove 221 is aligned with the locking block 41. The control member 42 is installed on the frame 1 and is used to drive the locking block 41 to slide into or out of the locking groove 221. The control member 42 includes a spring 421 and a pull rod 422. One end of the spring 421 is installed on the frame 1, and the other end of the spring 421 is connected to the locking block 41. The spring 421 always has a tendency to drive the locking block 41 to slide into the locking groove 221. The pull rod 422 is slidably installed on the carriage 21 and is connected to the locking block 41. In this embodiment, the side of the locking block 41 facing the slide plate 22 and facing the side where the slide plate 22 slides away from the carriage 21 is arc-shaped.

[0037] When the experimenter inserts the slide plate 22 into the carriage 21, the slide plate 22 can abut against the arc surface of the locking block 41 to drive the locking block 41 to move away from the slide plate 22, eliminating the need for the experimenter to manually control the locking block 41 to move away from the slide plate 22. When the slide plate 22 continues to slide to close the material hole 211, the locking block 41 is aligned with the slide plate 22, and the locking block 41 can partially slide into the locking groove 221 under the action of the spring 421. By the abutment of the locking block 41 against the side wall of the locking groove 221, the slide plate 22 can be positioned on the carriage 21, effectively improving the stability of the slide plate 22 when closing the material hole 211 on the carriage 21. When it is necessary to pull out the slide plate 22 from the carriage 21, the experimenter pulls the pull rod 422 to move the locking block 41 out of the locking groove 221, and then the slide plate 22 can be pulled out from the carriage 21, effectively improving the convenience of the experimenter to install and remove the slide plate 22 on the carriage 21.

[0038] Refer to Figure 1 , the positioning component 5 is installed on the frame 1. The positioning component 5 is used to position the cast iron mold cavity under the pressing mechanism 3. The positioning component 5 includes clamping plates 51 and a bidirectional screw 52. There are two clamping plates 51 slidably installed on the frame 1. The sides of the two clamping plates 51 close to each other are both arc-shaped and adapted to the outer side wall of the cast iron mold cavity. The bidirectional screw 52 is rotatably installed on the frame 1. The bidirectional screw 52 is threadedly connected to both clamping plates 51. The directions of the threads at both ends of the bidirectional screw 52 connected to the two clamping plates 51 are opposite.

[0039] After the carriage 21 drives the cast iron mold cavity to the lower part of the pressing mechanism 3, the experimenter rotates the bidirectional screw rod 52, so that the two clamping plates 51 approach each other. The two clamping plates 51 can clamp both sides of the cast iron mold cavity, thereby positioning the cast iron mold cavity under the pressing mechanism 3. Moreover, through the arc-shaped clamping plates 51 adapted to the outer side wall of the cast iron mold cavity, the contact area with the outer side wall of the cast iron mold cavity is increased, effectively improving the stability of the cast iron mold cavity on the carriage 21. And when the two clamping plates 51 clamp the cast iron mold cavity, the position of the cast iron mold cavity can be adjusted, so that the cast iron mold cavity moves to directly below the pressing mechanism 3, effectively improving the position accuracy of transporting the cast iron mold cavity to the lower part of the pressing mechanism 3.

[0040] Refer to Figure 1 , the pressing mechanism 3 includes a gantry 31 and a hydraulic cylinder 32. The gantry 31 is installed on the frame 1, and the hydraulic cylinder 32 is vertically installed on the gantry 31. The piston rod of the hydraulic cylinder 32 faces the frame 1.

[0041] After the cast iron mold cavity is transported to directly below the hydraulic cylinder 32, the hydraulic cylinder 32 is started, and the piston rod of the hydraulic cylinder 32 extends, and then it can be pressed against the impermeability test piece, facilitating pressing the impermeability test piece into the cast iron mold cavity or pressing the impermeability test piece out of the cast iron mold cavity.

[0042] The implementation principle of the embodiment of the present application is as follows: when pressing the impermeability test piece into the cast iron mold cavity, the experimenter first inserts the sliding plate 22 into the carriage 21, then places the end with the smaller diameter of the cast iron mold cavity on the sliding plate 22 and the carriage 21, then puts the impermeability test piece into the cast iron mold cavity, and then pushes the carriage 21 to move the impermeability test piece to directly below the hydraulic cylinder 32. Then rotate the bidirectional screw rod 52 to make the two clamping plates 51 clamp and position the cast iron mold cavity, and then drive the piston rod of the hydraulic cylinder 32 to extend to press the impermeability test piece into the cast iron mold cavity; when the impermeability test piece needs to be taken out, pull out the sliding plate 22 from the carriage 21, then place the end with the larger diameter of the cast iron mold cavity on the carriage 21, push the carriage 21 to directly below the hydraulic cylinder 32, and drive the two clamping plates 51 to position the cast iron mold cavity, then drive the piston rod of the hydraulic cylinder 32 to press the impermeability test piece out of the cast iron mold cavity into the material hole 211. Through the transportation of the cast iron mold cavity and the impermeability test piece by the carriage 21, the handling of the impermeability test piece and the cast iron mold cavity by the experimenter is reduced, and through the extrusion of the impermeability test piece by the hydraulic cylinder 32, the convenience of loading the impermeability test piece into the cast iron mold cavity and demolding from the cast iron mold cavity is improved, effectively improving the problems of great operation difficulty and certain safety risks during the process of loading and demolding the impermeability test piece.

[0043] Embodiment 2

[0044] Refer to Figure 3, The difference between the embodiment of the present application and Embodiment 1 lies in that the pressing mechanism 3 includes a pressing plate 33, a motor 34 and a lead screw 35. The pressing plate 33 is slidably mounted on the frame 1 in the vertical direction. In this embodiment, guide rods are mounted on the frame 1 in the vertical direction, and the pressing plate 33 is slidably mounted on the guide rods. The motor 34 is mounted on the frame 1, the lead screw 35 is coaxially mounted on the output shaft of the motor 34, the motor 34 is a servo motor 34, and the lead screw 35 is threadedly connected to the pressing plate 33; and a protective cover 6 is further mounted on the frame 1, and the protective cover 6 covers the lead screw 35 therein.

[0045] The implementation principle of the embodiment of the present application is as follows: The tester starts the motor 34, and the output shaft of the motor 34 drives the lead screw 35 to rotate forward or backward, which can drive the pressing plate 33 to move in the vertical direction, so that the pressing plate 33 presses the impermeability specimen or drives the pressing plate 33 away from the impermeability specimen, facilitating the pressing of the impermeability specimen into the cast iron mold cavity or pressing the impermeability specimen out of the cast iron mold cavity; and during the rotation of the lead screw 35, the protective cover 6 covers the lead screw 35 therein, reducing the possibility of the lead screw 35 winding the tester's clothes and improving the safety of equipment use.

[0046] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A concrete impermeability test mold loading and demoulding machine, characterized in that: The invention comprises a frame (1), a feeding mechanism (2) and a pressing mechanism (3); the feeding mechanism (2) is arranged on the frame (1) and is used to convey the water-resistance test piece and the cast iron mold cavity to the pressing mechanism (3); the feeding mechanism (2) comprises a slide frame (21) and a slide plate (22); the slide frame (21) is slidably arranged on the frame (1); a material hole (211) is provided on the slide frame (21); the diameter of the material hole (211) is smaller than the maximum diameter of the cast iron mold cavity and larger than the maximum diameter of the water-resistance test piece; the slide plate (22) is slidably arranged on the slide frame (21) and is used to close the material hole (211); the pressing mechanism (3) is arranged on the frame (1) and is used to press the water-resistance test piece from top to bottom.

2. A concrete impermeability test mold loading and demoulding machine according to claim 1, characterized in that: The slide frame (21) is provided with a locking assembly (4) for locking the slide plate (22), the locking assembly (4) comprising a locking block (41) and a control member (42), the locking block (41) being slidably arranged on the slide frame (21), the slide plate (22) being provided with a locking groove (221) for the locking block (41) to be inserted into, and the control member (42) being arranged on the frame (1) and being used to drive the locking block (41) to slide into the locking groove (221) or slide out of the locking groove (221).

3. A concrete impermeability test mold loading and demoulding machine according to claim 2, characterized in that: The control member (42) comprises a spring (421) and a pull rod (422); the spring (421) is arranged on the frame (1); the spring (421) is connected to the locking block (41); the spring (421) always has a tendency to drive the locking block (41) to slide into the locking groove (221); the pull rod (422) is slidably arranged on the frame (1); the pull rod (422) is connected to the locking block (41).

4. A concrete impermeability test mold loading and demoulding machine according to claim 1, characterized in that: The frame (1) is provided with a positioning assembly (5) for positioning the cast iron mold cavity below the pressing mechanism (3), the positioning assembly (5) comprising a clamping plate (51) and a bidirectional screw (52), two clamping plates (51) being slidably provided on the frame (1), the bidirectional screw (52) being rotatably provided on the frame (1) and being threadedly connected to the two clamping plates (51), and the thread directions of the bidirectional screw (52) connecting the two clamping plates (51) being opposite.

5. A concrete impermeability test mold loading and demoulding machine according to claim 4, characterized in that: The clamping plate (51) is arranged in an arc shape that matches the outer side wall of the cast iron mold cavity.

6. A concrete impermeability test mold loading and demoulding machine according to claim 1, characterized in that: The pressing mechanism (3) comprises a gantry (31) and a hydraulic cylinder (32); the gantry (31) is arranged on the frame (1); the hydraulic cylinder (32) is arranged on the gantry (31); and the piston rod of the hydraulic cylinder (32) faces the frame (1).

7. A concrete impermeability test mold loading and demoulding machine according to claim 1, characterized in that: The pressing mechanism (3) comprises a pressing plate (33), a motor (34) and a lead screw (35); the pressing plate (33) is slidably arranged on a support frame along a vertical direction; the motor (34) is arranged on a frame (1); the lead screw (35) is coaxially arranged on an output shaft of the motor (34); and the lead screw (35) is threadedly connected to the pressing plate (33).

8. A concrete impermeability test mold loading and demoulding machine according to claim 7, characterized in that: A protective cover (6) is provided on the frame (1), and the protective cover (6) covers the lead screw (35) therein.

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