A concrete test block manufacturing device and implementation method thereof
By using flat pressing mechanism, lifting hydraulic cylinder and vibration mechanism in the production of concrete test blocks, the problems of unstable manual pressure application and easy damage to mold release are solved, and high-density and integrity test block production are achieved, and inspection is improved accuracy.
Patent Information
- Application Number
- CN202011322232.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-11-23
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2040-11-23
AI Technical Summary
In the existing concrete test block production methods, unstable manual pressure and unstable pressure and demolding process are likely to cause damage to the test block, resulting in insufficient compactness and poor test accuracy.
The concrete test block production device including a flat pressing mechanism, a lifting hydraulic cylinder and a vibration mechanism is adopted to stabilize the pressure and vibration through the hydraulic cylinder to ensure the compactness, and to avoid the test block during the mold release process through the lifting function of the hydraulic cylinder. damage.
The high density and integrity of the test block are achieved, the density and detection accuracy of the test block are improved, and the damage of the test block is avoided during the demolding process.
Smart Images

Figure CN112297192B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of concrete testing, and in particular to a concrete test block manufacturing device and an implementation method thereof. Background Art
[0002] The production mix ratio of concrete needs to comply with the national concrete production mix ratio standards, and tests such as concrete impermeability and critical antifreeze strength need to be carried out during production. During the test, sampling must be carried out at least once for every 100 plates of concrete with the same mix ratio that does not exceed 100m³. When the concrete with the same mix ratio mixed by each work shift is less than 100 plates, sampling must be carried out at least once, and the sampled concrete must be made into standard test blocks for testing. The current method of making test blocks is to compact the concrete test blocks by mechanical vibration, that is, fill the test mold with the concrete mixture at one time, use a vibrating rod to compact the concrete mixture initially so that the concrete mixture is higher than the test mold, and place it on the vibration table. The maker needs to hold the test mold with one hand and use an iron trowel with the other hand to apply pressure on the upper surface of the concrete, and keep smearing it back and forth; after the test block is formed, the maker will turn the test mold over and tap the bottom of the test mold to make the test block separate from the test mold.
[0003] However, the mechanical vibration method for compacting concrete test blocks is unstable due to the manual pressure control, and the manual flipping and knocking to demould the test blocks result in insufficient density and easy damage, resulting in poor test accuracy of the test blocks. Therefore, it is urgent to provide a concrete test block manufacturing device that can ensure the density of the test block and effectively prevent the test block from being damaged. Summary of the invention
[0004] The object of the present invention is to solve the above-mentioned problem and to provide a concrete test block manufacturing device and an implementation method thereof which can ensure the compactness of the test block and effectively prevent the test block from being damaged.
[0005] The purpose of the present invention is achieved through the following technical solutions:
[0006] A concrete test block manufacturing device comprises a mounting base, a controller, two vertical slide bars symmetrically arranged on the mounting base, a flattening mechanism fixed on the top of the two vertical slide bars, a test mold cavity arranged between the two vertical slide bars and movably connected to the two vertical slide bars respectively, a mold cavity receiving platform arranged on the mounting base and movably connected to the test mold cavity, a lifting hydraulic cylinder arranged on the side wall of the mold cavity receiving platform and used for driving the test mold cavity to move up and down, and a vibration mechanism movably arranged on one of the vertical slide bars and capable of freely rotating and sliding up and down along the vertical slide bar; the controller is respectively connected to the lifting hydraulic cylinder, the flattening mechanism and the vibration mechanism.
[0007] The trial mold cavity is a cavity with upper and lower openings.
[0008] Furthermore, the mold cavity receiving platform includes a support frame, a table plate fixed on the upper end of the support frame, and a support plate movably arranged on the table plate as the bottom plate of the trial mold cavity; the support frame is fixed on the mounting base plate; the lower end of the support plate is embedded in the table plate, and the upper end is embedded in the lower cavity wall of the trial mold cavity, and a groove cavity matching the lower end of the support plate is provided on the table plate, and the lower end of the support plate is embedded in the groove cavity; the lifting hydraulic cylinder is installed on the side wall of the support frame.
[0009] Clamping arms are respectively arranged on the two opposite outer side walls of the trial mold cavity, one end of the clamping arm is fixed on the outer side wall of the trial mold cavity, and the other end is sleeved on the vertical sliding rod and can move up and down along the vertical sliding rod; the number of the lifting hydraulic cylinders is the same as the number of the clamping arms, and the movable end of the telescopic rod of the lifting hydraulic cylinder is connected to the clamping arm.
[0010] The flat pressing mechanism includes a pressing block and a compression hydraulic cylinder fixed to the top of two vertical sliding rods through a mounting plate; the telescopic rod of the compression hydraulic cylinder passes through the mounting plate from top to bottom, and the pressing block is located below the mounting plate and fixed to the movable end of the telescopic rod of the compression hydraulic cylinder; the controller is connected to the compression hydraulic cylinder.
[0011] Furthermore, the vibration mechanism includes a sliding mechanism, a vibration pump arranged on the sliding mechanism, and a vibration rod connected to the vibration arm of the vibration pump; and the controller is connected to the vibration pump.
[0012] The sliding mechanism includes a sliding seat, a sliding arm fixed to the sliding seat, and a sliding block sleeved on the sliding arm; the sliding seat is sleeved on one of the vertical sliding rods and can freely rotate and slide up and down along the vertical sliding rod; the sliding seat is also provided with a locking bolt for fixing the sliding seat, and the locking bolt contacts the vertical sliding rod after passing through the sliding seat; the vibration pump is vertically fixed on the sliding block.
[0013] Furthermore, the concrete test block manufacturing device further includes a vibrator disposed on the lower surface of the table; and the controller is connected to the vibrator.
[0014] Grooves for facilitating the movement of the support plate are respectively arranged on two opposite side walls of the support plate.
[0015] The slide arm is also provided with a limit block for preventing the slide block from falling off; the slide block is also provided with a handle for facilitating the movement of the slide block.
[0016] A method for implementing a concrete test block manufacturing device specifically comprises the following steps:
[0017] Step 1: Apply a layer of mold release liquid on each inner wall of the test mold cavity, and perform the first concrete pouring in the test mold cavity;
[0018] Step 2: Rotate and lower the vibration mechanism, insert the vibration rod of the vibration mechanism into the concrete in the test mold cavity until it reaches 2 to 3 cm from the bottom of the test mold cavity, start the vibration pump to vibrate the concrete, and rotate the slide seat and move the slider at a constant speed to vibrate the concrete from the outside to the inside for 30 to 40 minutes;
[0019] Step 3: After the vibration is completed, the vibrating rod is moved out of the test mold cavity, and the vibrator is started to vibrate the concrete for 10 to 20 minutes and then stopped. At the same time, the compression hydraulic cylinder is started to drive the pressing block to squeeze the concrete for 10 to 20 minutes, then it is separated from the concrete and moved out of the test mold cavity to eliminate the bubbles between the concrete and the wall of the test mold cavity;
[0020] Step 4: Pour concrete into the test mold cavity for the second time, so that the concrete surface reaches the cavity opening of the test mold cavity;
[0021] Step 5: Insert the vibrating rod into the concrete at a distance halfway from the cavity opening of the test mold again, and start the vibration pump to vibrate the concrete for 30 to 40 minutes;
[0022] Step 6: After vibration, repeat steps 2 and 3, and let the concrete in the test mold cavity stand for 70 to 100 minutes to obtain an un-demolded concrete test block;
[0023] Step 7: Start the lifting hydraulic cylinder to demould the concrete test block. After demoulding, move the pallet together with the concrete test block out of the groove cavity of the table plate, and the concrete test block is completed.
[0024] The demoulding liquid in step 1 is waste engine oil or a demoulding agent, and the first concrete pouring amount in step 1 is one half of the volume of the trial mold cavity.
[0025] In the step 6, after the step 3 is completed, the pressing block does not separate from the concrete; in the step 7, after demoulding, the retracting rod of the compression hydraulic cylinder is retracted, and the pressing block separates from the concrete test block.
[0026] Compared with the prior art, the present invention has the following advantages and beneficial effects:
[0027] (1) The leveling and pressing mechanism of the present invention can effectively solve the problem of unstable pressure applied on the artificial surface. When in use, the compression hydraulic cylinder of the leveling and pressing mechanism can replace people to stably apply pressure to the concrete block, so that the molding effect of the test block is better.
[0028] (2) The lifting hydraulic cylinder of the present invention can well complete the demoulding. When in use, the lifting hydraulic cylinder lifts the test mold cavity upward, and the pressure plate of the flat pressing mechanism presses the formed test block firmly, so that the test mold cavity can be separated from the test block, effectively ensuring the integrity of the test block. This well solves the problem that when making existing mechanical test blocks, the test mold cavity needs to be turned over and knocked, which can easily cause damage to the test block.
[0029] (3) The present invention is provided with a vibration mechanism. By installing a vibration pump on a sliding mechanism, the vibration mechanism enables a vibration rod in contact with concrete to vibrate the concrete in the test mold cavity at a stable and uniform speed and at different positions, thereby effectively ensuring that the density of the test block is more uniform and the accuracy of the detection is ensured.
[0030] (4) The present invention can effectively reduce the gap between concrete components and improve the density of the test block by arranging a vibrator under the table. At the same time, it can effectively eliminate bubbles on the contact surface between the concrete test block wall and the test mold cavity, avoid honeycomb and rough surface phenomena, and improve the smoothness of the wall surface of the test block. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention.
[0032] Figure 2 It is a structural schematic diagram of the table plate of the present invention.
[0033] Figure 3 It is a schematic structural diagram of the trial mold cavity of the present invention.
[0034] The figure numbers in the above drawings are: 1-mounting base plate, 2-vibrator, 3-support frame, 4-lifting hydraulic cylinder, 5-clamping arm, 6-vertical slide rod, 7-pressure block, 8-trial mold cavity, 9-slide seat, 10-controller, 11-compression hydraulic cylinder, 12-locking bolt, 13-vibration pump, 14-handle, 15-limiting block, 16-slide arm, 17-slider, 18-vibration rod, 19-support plate, 20-table plate, 21-groove, 22-mounting plate, 23-groove cavity. DETAILED DESCRIPTION
[0035] The present invention will be further described in detail below in conjunction with examples, but the embodiments of the present invention are not limited thereto.
[0036] Example 1
[0037] like Figure 1 and 2 As shown, the concrete test block manufacturing device of the present invention comprises a mounting base plate 1, a controller 10, a vertical slide bar 6, a flat pressing mechanism, a test mold cavity 8, a mold cavity receiving platform, a lifting hydraulic cylinder 4, and a vibration mechanism. In this embodiment, the controller 10 is preferably implemented by an existing mechanical control switch that can output multiple control voltages, so the structure of the controller 10 is not specifically described in this specification. The controller 10 is connected to the lifting hydraulic cylinder 4, the flat pressing mechanism, and the vibration mechanism, respectively, and controls the working states of the lifting hydraulic cylinder 4, the flat pressing mechanism, and the vibration mechanism.
[0038] In specific implementation, the mounting base plate 1 can be fixed on the ground or on a pre-set slide plate for easy movement, which is adjusted according to the actual situation. For the sake of stability in use, the number of vertical slide bars 6 is set to two, and the two vertical slide bars 6 are symmetrically arranged on the mounting base plate 1. When installing, they can be fixed by screws or connections according to the actual situation. The flat pressing mechanism is fixed on the top of the two vertical slide bars 6. The test mold cavity 8 is installed between the two vertical slide bars 6 and is movably connected to the two vertical slide bars 6 respectively. The test mold cavity 8 is as shown in FIG. Figure 3 As shown, the trial mold cavity 8 is a cavity with upper and lower openings. The mold cavity receiving platform is arranged on the mounting base plate 1 and is movably connected to the trial mold cavity 8. The lifting hydraulic cylinder 4 is arranged on the side wall of the mold cavity receiving platform and is used to drive the trial mold cavity 8 to move up and down. The vibration mechanism is movably arranged on one of the vertical slide bars 6 and can freely rotate and slide up and down along the vertical slide bar 6.
[0039] Furthermore, if Figure 1 As shown, the mold cavity receiving platform includes a support frame 3, a table 20 fixed to the upper end of the support frame 3, and a support plate 19 movably arranged on the table 20 as the bottom plate of the test mold cavity 8. Specifically, the support frame 3 is fixed to the mounting base plate 1 by screws. The lower end of the support plate 19 is embedded in the table 20, and the upper end is embedded in the lower cavity wall of the test mold cavity 8. The support plate 19 serves as a carrier of the test block. In order to facilitate installation, as shown in FIG. Figure 2 As shown, the platen 20 is provided with a groove 23 matching the lower end of the support plate 19, and the lower end of the support plate 19 is embedded in the groove 23. Figure 3 As shown, a clamping table for installing the support plate 19 is pre-set. The lifting hydraulic cylinder 4 is fixed to the side wall of the support frame 3 by screws. In order to facilitate the movement and installation of the support plate 19, grooves 21 for facilitating the movement of the support plate 19 are respectively provided on the two opposite side walls of the support plate 19.
[0040] In order to better install the trial mold cavity 8 on the vertical slide bar 6 and realize that the trial mold cavity 8 can move up and down along the vertical slide bar 6, clamping arms 5 are respectively arranged on the two opposite outer side walls of the trial mold cavity 8. One end of the clamping arm 5 is fixed to the outer side wall of the trial mold cavity 8 by screws, and the other end is sleeved on the vertical slide bar 6 and can move up and down along the vertical slide bar 6. The number of the lifting hydraulic cylinders 4 is the same as the number of the clamping arms 5, and the movable end of the telescopic rod of the lifting hydraulic cylinder 4 is connected to the clamping arm 5, that is, the movable end of the telescopic rod of the lifting hydraulic cylinder 4 is fixed to the lower arm surface of the clamping arm 5 by screws.
[0041] Furthermore, the flat pressing mechanism includes a pressing block 7, and a compression hydraulic cylinder 11 fixed to the top of two vertical slide bars 6 through a mounting plate 22. Specifically, the compression hydraulic cylinder 11 is fixed to the mounting plate 22 by screws, and the telescopic rod of the compression hydraulic cylinder 11 passes through the mounting plate 22 from top to bottom. The pressing block 7 is located below the mounting plate 22 and is fixed to the movable end of the telescopic rod of the compression hydraulic cylinder 11 by screw fixing or welding fixing. The controller 10 is connected to the compression hydraulic cylinder 11.
[0042] Furthermore, the vibration mechanism includes a sliding mechanism, a vibration pump 13 disposed on the sliding mechanism, and a vibration rod 18 connected to a vibration arm of the vibration pump 13. The controller 10 is connected to the vibration pump 13.
[0043] The sliding mechanism includes a slide seat 9, a slide arm 16 integral with the slide seat 9, and a slider 17 sleeved on the slide arm 16. Specifically, the slide seat 9 is sleeved on one of the vertical slide bars 6 and can freely rotate and slide up and down along the vertical slide bar 6. A locking bolt 12 for fixing the slide seat 9 is also provided on the slide seat 9. The locking bolt 12 contacts the vertical slide bar 6 after passing through the slide seat 9. The vibration pump 13 is vertically fixed on the slider 17 through a mounting block. In order to prevent the slider 17 from falling off, a limit block 15 for preventing the slider 17 from falling off is also provided on the slide arm 16. In order to facilitate the movement of the slider 17, that is, to facilitate the movement of the vibration pump 13, a handle 14 for facilitating the movement of the slider 17 is also provided on the slider 17.
[0044] Example 2
[0045] The difference between this embodiment and embodiment 1 is that Figure 1 As shown, a vibrator 2 is provided on the lower surface of the table 20, and the controller 10 is connected to the vibrator 2. The vibrator 2 can effectively reduce the gap between the concrete components and improve the density of the test block; at the same time, it can effectively eliminate the bubbles on the contact surface between the concrete test block wall and the test mold cavity, avoid honeycomb and rough surface phenomena, and improve the smoothness of the wall surface of the test block.
[0046] Example 3
[0047] The implementation method of the concrete test block manufacturing device specifically includes the following steps:
[0048] Step 1: Apply a layer of mold release liquid on each inner wall of the test mold cavity 8, and perform the first concrete pouring in the test mold cavity 8. The mold release liquid is waste oil or a mold release agent, and the type of the mold release liquid can be set according to actual conditions. The first concrete pouring volume is half of the volume of the test mold cavity 8.
[0049] Step 2: Rotate and lower the vibration mechanism, insert the vibration rod 18 of the vibration mechanism into the concrete in the test mold cavity 8 until it is 2 to 3 cm from the bottom of the test mold cavity 8, start the vibration pump 13 to vibrate the concrete, and rotate the slide 9 and move the slider 17 at a constant speed to vibrate the concrete from the outside to the inside for 30 to 40 minutes.
[0050] Step 3: After the vibration is completed, the vibrating rod 18 is moved out of the test mold cavity 8, and the vibrator 2 is started to vibrate the concrete for 10 to 20 minutes and then stopped. At the same time, the compression hydraulic cylinder 11 is started to drive the pressing block 7 to squeeze the concrete for 10 to 20 minutes, then it is separated from the concrete and moved out of the test mold cavity 8 to eliminate the bubbles between the concrete and the wall of the test mold cavity 8.
[0051] Step 4: Pour concrete into the trial mold cavity 8 for the second time, so that the concrete surface reaches the cavity opening of the trial mold cavity 8.
[0052] Step 5: Insert the vibrating rod 18 into the concrete at a distance halfway from the opening of the trial mold cavity 8 again, and start the vibrating pump 13 to vibrate the concrete for 30 to 40 minutes.
[0053] Step 6: After vibrating, repeat steps 2 and 3, and let the concrete in the test mold cavity 8 stand for 70 to 100 minutes to obtain an un-demolded concrete test block. In this step, after completing step 3, the pressing block 7 does not separate from the concrete, so that the pressing block 7 remains in contact with the concrete.
[0054] Step 7: Start the lifting hydraulic cylinder 4 to demould the concrete test block. After demoulding, the retracting rod of the compression hydraulic cylinder 11 is retracted, and the pressing block 7 is separated from the concrete test block. After demoulding, the support plate 19 and the concrete test block are moved out of the groove cavity 23 of the platform 20, and the concrete test block is manufactured.
[0055] Example 4
[0056] This embodiment is basically the same as Embodiment 3, except that:
[0057] The vibrating rod 18 of the vibrating mechanism in step 2 is inserted into the concrete in the trial mold cavity 8 until 2 cm from the bottom of the trial mold cavity 8, and the concrete is vibrated from the outside to the inside for 30 minutes.
[0058] In step 3, the vibrator 2 is started to vibrate the concrete for 10 minutes and then stopped. The compression hydraulic cylinder 11 is started at the same time to drive the pressing block 7 to squeeze the concrete for 10 minutes and then separate from the concrete and move out of the test mold cavity 8.
[0059] In step 5, the vibration pump 13 is started to vibrate the concrete for 30 minutes.
[0060] After the vibration in step 6, steps 2 and 3 are repeated, and the concrete in the test mold cavity 8 is left to stand for 70 minutes to obtain an un-demolded concrete test block.
[0061] Example 5
[0062] This embodiment is basically the same as Embodiment 4, except that:
[0063] The vibrating rod 18 of the vibrating mechanism in step 2 is inserted into the concrete in the test mold cavity 8 until 2.5 cm from the bottom of the test mold cavity 8, and the concrete is vibrated from the outside to the inside for 35 minutes.
[0064] In step 3, the vibrator 2 is started to vibrate the concrete for 15 minutes and then stopped. The compression hydraulic cylinder 11 is started at the same time to drive the pressing block 7 to squeeze the concrete for 15 minutes and then separate from the concrete and move out of the test mold cavity 8.
[0065] In step 5, the vibration pump 13 is started to vibrate the concrete for 35 minutes.
[0066] After the vibration in step 6, steps 2 and 3 are repeated, and the concrete in the test mold cavity 8 is left to stand for 85 minutes to obtain an un-demolded concrete test block.
[0067] Example 6
[0068] This embodiment is basically the same as Embodiment 5, except that:
[0069] The vibrating rod 18 of the vibrating mechanism in step 2 is inserted into the concrete in the test mold cavity 8 until 3 cm from the bottom of the test mold cavity 8, and the concrete is vibrated from the outside to the inside for 40 minutes.
[0070] In step 3, the vibrator 2 is started to vibrate the concrete for 20 minutes and then stopped. At the same time, the compression hydraulic cylinder 11 is started to drive the pressing block 7 to squeeze the concrete for 20 minutes and then separate from the concrete and move out of the test mold cavity 8.
[0071] In step 5, the vibration pump 13 is started to vibrate the concrete for 40 minutes.
[0072] After the vibration in step 6, steps 2 and 3 are repeated, and the concrete in the test mold cavity 8 is left to stand for 100 minutes to obtain an un-demolded concrete test block.
[0073] As described above, the present invention can be well implemented.
Claims
1. A concrete test block manufacturing device, characterized in that: The invention comprises a mounting base (1), a controller (10), two vertical slide bars (6) symmetrically arranged on the mounting base (1), a flat pressing mechanism fixed on the top of the two vertical slide bars (6), a trial mold cavity (8) arranged between the two vertical slide bars (6) and movably connected to the two vertical slide bars (6), a mold cavity receiving platform arranged on the mounting base (1) and movably connected to the trial mold cavity (8), a lifting hydraulic cylinder (4) arranged on the side wall of the mold cavity receiving platform and used for driving the trial mold cavity (8) to move up and down, and a vibration mechanism movably arranged on one of the vertical slide bars (6) and capable of freely rotating and sliding up and down along the vertical slide bar (6); the controller (10) is respectively connected to the lifting hydraulic cylinder (4) and the flat pressing mechanism and the vibration mechanism; the trial mold cavity (8) is a cavity body with upper and lower openings; The flat pressing mechanism comprises a pressing block (7) and a compression hydraulic cylinder (11) fixed to the top of two vertical sliding rods (6) via a mounting plate (22); the telescopic rod of the compression hydraulic cylinder (11) passes through the mounting plate (22) from top to bottom, the pressing block (7) is located below the mounting plate (22) and fixed to the movable end of the telescopic rod of the compression hydraulic cylinder (11); the controller (10) is connected to the compression hydraulic cylinder (11); The vibration mechanism comprises a sliding mechanism, a vibration pump (13) arranged on the sliding mechanism, and a vibration rod (18) connected to a vibration arm of the vibration pump (13); the controller (10) is connected to the vibration pump (13).
2. The concrete test block manufacturing device according to claim 1, characterized in that: The mold cavity receiving platform comprises a support frame (3), a table plate (20) fixed to the upper end of the support frame (3), and a support plate (19) movably arranged on the table plate (20) as the bottom plate of the trial mold cavity (8); the support frame (3) is fixed on the mounting base plate (1); the lower end of the support plate (19) is embedded in the table plate (20), and the upper end is embedded in the lower cavity wall of the trial mold cavity (8); the table plate (20) is provided with a groove cavity (23) matching the lower end of the support plate (19), and the lower end of the support plate (19) is embedded in the groove cavity (23); the lifting hydraulic cylinder (4) is installed on the side wall of the support frame (3); and grooves (21) for facilitating the movement of the support plate (19) are respectively provided on two opposite side walls of the support plate (19).
3. The concrete test block manufacturing device according to claim 2, characterized in that: Clamping arms (5) are respectively arranged on two opposite outer side walls of the trial mold cavity (8); one end of the clamping arm (5) is fixed on the outer side wall of the trial mold cavity (8), and the other end is sleeved on the vertical slide bar (6) and can move up and down along the vertical slide bar (6); the number of the lifting hydraulic cylinders (4) is the same as the number of the clamping arms (5), and the movable end of the telescopic rod of the lifting hydraulic cylinder (4) is connected to the clamping arm (5).
4. The concrete test block manufacturing device according to claim 3, characterized in that: The sliding mechanism comprises a sliding seat (9), a sliding arm (16) fixedly connected to the sliding seat (9), and a sliding block (17) sleeved on the sliding arm (16); the sliding seat (9) is sleeved on one of the vertical sliding rods (6) and can freely rotate and slide up and down along the vertical sliding rod (6); the sliding seat (9) is also provided with a locking bolt (12) for fixing the sliding seat (9), and the locking bolt (12) penetrates the sliding seat (9) and contacts the vertical sliding rod (6); the vibration pump (13) is vertically fixed on the sliding block (17); the sliding arm (16) is also provided with a limit block (15) for preventing the sliding block (17) from falling off; and the sliding block (17) is also provided with a handle (14) for facilitating the movement of the sliding block (17).
5. The concrete test block manufacturing device according to claim 4, characterized in that: It also includes a vibrator (2) arranged on the lower surface of the table (20); the controller (10) is connected to the vibrator (2).
6. The implementation method of the concrete test block manufacturing device according to claim 5, characterized in that: The specific steps include: Step 1: Apply a layer of mold release liquid on each inner wall of the test mold cavity (8), and perform the first concrete pouring in the test mold cavity (8); Step 2: Rotate and lower the vibration mechanism, insert the vibration rod (18) of the vibration mechanism into the concrete in the test mold cavity (8) until it reaches 2 to 3 cm from the bottom of the test mold cavity (8), start the vibration pump (13) to vibrate the concrete, and rotate the slide seat (9) and the sliding block (17) at a constant speed to vibrate the concrete from the outside to the inside for 30 to 40 minutes; Step 3: After the vibration is completed, the vibrating rod (18) is moved out of the test mold cavity (8), and the vibrator (2) is started to vibrate the concrete for 10 to 20 minutes and then stopped. At the same time, the compression hydraulic cylinder (11) is started to drive the pressing block (7) to squeeze the concrete for 10 to 20 minutes and then separate from the concrete and move out of the test mold cavity (8), thereby eliminating bubbles between the concrete and the wall of the test mold cavity (8); Step 4: pouring concrete into the test mold cavity (8) for the second time, so that the concrete surface reaches the cavity opening of the test mold cavity (8); Step 5: insert the vibrating rod (18) again into the concrete at a distance halfway from the opening of the test mold cavity (8), and start the vibrating pump (13) to vibrate the concrete for 30 to 40 minutes; Step 6: after vibrating, repeating steps 2 and 3, and leaving the concrete in the test mold cavity (8) to stand for 70 to 100 minutes, to obtain an un-demolded concrete test block; Step 7: Start the lifting hydraulic cylinder (4) to demould the concrete test block. After demoulding, move the support plate (19) together with the concrete test block out of the groove cavity (23) of the platform (20). The concrete test block is manufactured.
7. The implementation method of the concrete test block manufacturing device according to claim 6, characterized in that: The demoulding liquid in step 1 is waste engine oil or a demoulding agent, and the first concrete pouring amount in step 1 is one half of the volume of the trial mold cavity (8).
8. The implementation method of the concrete test block manufacturing device according to claim 7, characterized in that: In step 6, after step 3 is completed, the pressing block (7) does not separate from the concrete; in step 7, after demoulding, the retracting rod of the compression hydraulic cylinder (11) is retracted, and the pressing block (7) separates from the concrete test block.
