Concrete specimen demoulding device and use method thereof

Abstract

The present invention relates to the field of construction equipment, and discloses a concrete specimen demoulding equipment, comprising a demoulding bracket, on which a lifting demoulding platform for placing a mold body is arranged, and further comprising: a clamping member arranged on the demoulding bracket; a flipping mechanism arranged on the clamping member; a blowing device arranged on the demoulding bracket, and used to blow out the concrete specimen in the flipped mold body; the demoulding platform is provided with at least one through groove for only allowing the concrete specimen to pass through, and a supporting device for supporting the concrete specimen is arranged at the position of the through groove at the bottom of the demoulding platform corresponding to the position of the through groove. The present invention does not require subsequent staff to remove the outer shell from the movable table, simplifies the demoulding process, improves production efficiency, and reduces the labor intensity of operators. The use of automated equipment greatly reduces manual operation, reduces the safety risk of operators, and improves work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of construction equipment, in particular to a concrete specimen demoulding device and a use method thereof. Background Art

[0002] As one of the most widely used civil engineering materials, concrete has very important physical and mechanical properties. The mechanical properties of concrete directly affect the safety of these buildings. The mechanical properties of concrete are usually reflected by the performance of concrete test blocks. Concrete test blocks must go through a series of processes such as pouring, demoulding, and curing. Among them, the demoulding of concrete test blocks is often done by pneumatic demoulding. At present, many concrete molds have pneumatic demoulding holes at the bottom. Most of them are inflated by connecting a high-pressure air pump to an air gun to inflate the pneumatic demoulding holes, so that the air in the mold is quickly filled to achieve the separation of the concrete test block from the concrete test mold.

[0003] The existing equipment has the following disadvantages: since the opening of the concrete specimen is facing upward during the pouring process, during the demoulding process of the concrete specimen, it is necessary to manually or mechanically flip the concrete mold so that the opening of the mold faces downward. When the concrete specimen is placed on the table with the opening facing downward for positioning and adjustment, the concrete specimen will rub against the work surface, causing wear of the concrete specimen. The separated mold shell still remains on the workbench of the demoulding machine and needs to be taken away manually before a new mold that needs to be demoulded can be placed on the workbench, which increases the operating procedures of the staff and affects the demoulding efficiency of the concrete specimen.

[0004] Therefore, the present application now proposes a concrete specimen demoulding device and a method of using the same to solve the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide a concrete specimen demoulding device and a method for using the same, so as to solve the problem that the concrete mold needs to be turned over manually or by a mechanical arm so that the opening of the mold faces downward, and when the concrete specimen is placed on a table with the opening facing downward for positioning and adjustment, the concrete specimen will rub against the work table, causing wear of the concrete specimen, and the separated mold shell will still remain on the workbench of the demoulding machine, and needs to be taken out manually before a new mold to be demoulded can be placed on the workbench, which increases the operating procedures of the staff and thus affects the demoulding efficiency of the concrete specimen.

[0006] To achieve the above object, the present invention provides the following technical solutions: a concrete specimen demoulding device, comprising a demoulding bracket, on which a lifting demoulding table for placing a mold body is provided, and further comprising: a clamping member, which is provided on the demoulding bracket and is used to adjust the position of the mold body and clamp it;

[0007] A turning mechanism, arranged on the clamping member, for turning the mold body;

[0008] An air blowing device, arranged on the demoulding support, for blowing out the concrete specimen in the mold body after flipping;

[0009] The demoulding table is provided with a plurality of at least one through slot for only the concrete specimen to pass through, and a supporting device for supporting the concrete specimen is arranged at the bottom of the demoulding table at the position corresponding to the through slot.

[0010] Wherein, the supporting device comprises a lifting supporting platform arranged at the bottom of the demoulding platform for supporting the concrete specimen.

[0011] Wherein, an abutment frame is arranged on the supporting platform, and the abutment frame can be extended into the through groove and flush with the top surface of the demoulding platform under the drive of the supporting platform to support the concrete specimen.

[0012] It also includes a pushing mechanism, which is arranged on the demoulding table and is used to push the demoulded shell from the demoulding table.

[0013] The pushing mechanism includes a mounting frame fixed on the demoulding table, a connecting shaft rotatably arranged on the mounting frame, a gear fixedly sleeved on the connecting shaft, a connecting rod fixed on the upper end of the supporting table, a first rack fixed on the upper end of the connecting rod and meshingly connected with the gear, and a second rack slidably arranged on the mounting frame and meshingly connected with the gear, a pushing plate is arranged on one side of the second rack close to the shell, and a moving groove for the connecting rod to move is opened on the demoulding table;

[0014] The concrete specimen is blown out of the shell, the abutment frame supports the concrete specimen, the supporting platform drives the abutment frame to move downward, and the first rack follows the supporting platform to move downward until the height of the top of the concrete specimen is lower than the demoulding platform, and the first rack meshes with the gear; the concrete specimen continues to move downward, the first rack drives the gear to rotate, and the second rack follows the gear to rotate, so as to push out the shell on the demoulding platform.

[0015] Wherein, the clamping member includes a first power member fixed at the lower end of the top plate and symmetrically arranged, a movable frame arranged at the power output end of the first power member and a fixed plate arranged at the lower end of the movable frame for fixing the outer shell, and the flipping mechanism is arranged on the fixed plate.

[0016] Wherein, a sliding block is arranged at the upper end of the movable frame, and a sliding groove for sliding the sliding block is arranged at a position of the top plate corresponding to the sliding block.

[0017] Wherein, the flipping mechanism includes a clamping plate rotatably arranged on the inner side of the fixing plate and a second motor arranged on the outer side of at least one of the fixing plates, and a rotating shaft of the second motor passes through the fixing plate and is fixedly connected to the clamping plate.

[0018] Among them, the blowing device includes a second power part fixed on the upper end of the top plate, an air pump connecting box arranged at the output end of the second power part, and an air outlet nozzle arranged at the lower end of the air pump connecting box. One side of the air pump connecting box is connected to the external inflation element through a connecting pipe.

[0019] A method for demoulding a concrete specimen, which is used to use the above-mentioned demoulding device for a concrete specimen, comprises the following steps:

[0020] S1. Place the mold body with its air inlet facing downwards in contact with the demoulding table, and place it on the upper end of the through-groove at the upper end of the demoulding table, so that the mold body fits the push plate;

[0021] S2, start the first power member to drive the two fixed plates to move closer to each other, drive the flipping mechanism to squeeze and fix the outer shell of the mold body, move the demoulding table down until it does not affect the flipping of the outer shell, and the flipping mechanism drives the outer shell to flip 180 degrees so that the air inlet on the outer shell faces upward;

[0022] S3, start the second power member to drive the air pump connection box to move downward, so that the air outlet nozzle is inserted into the air inlet and sealed with the air inlet, open the inflatable element connected to the connecting pipe, blow air into the inside of the air pump connection box, and then blow the concrete specimen inside the shell out of the shell;

[0023] S4. During the process of the concrete specimen continuously moving down from the shell, the shell is left on the movable table, the concrete specimen moves down with the supporting platform, and the first rack moves down with the supporting platform until the top of the concrete specimen is lower than the demoulding table, and the first rack meshes with the gear; the concrete specimen continues to move down, the first rack drives the gear to rotate, and the second rack moves to the side close to the shell with the gear rotation, driving the push plate to push the shell out of the demoulding table.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention realizes rapid and accurate demoulding of the mold body, avoids wear between the concrete specimen and the demoulding table, maintains the flatness of the end face of the concrete specimen, and maintains the cleanliness of the table surface. The positioning member and the flipping mechanism can stably fix and flip the mold, ensuring the stability and accuracy of the demoulding process. An air blowing device is used to demould the mold, thereby avoiding damage to the mold and the specimen by traditional knocking and prying methods, extending the service life of the mold, and ensuring the integrity and quality of the specimen. The pushing device can push the demoulding-completed shell from the movable table surface, and there is no need for subsequent staff to remove the shell from the movable table surface, thereby simplifying the demoulding process, improving production efficiency, and reducing the labor intensity of operators. The use of automated equipment greatly reduces manual operation, reduces the safety risks of operators, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the main structure in one embodiment of the present invention;

[0027] Figure 2 It is a structural schematic diagram of an embodiment of the present invention in a front view;

[0028] Figure 3 It is a schematic diagram of a side view of a structure in one embodiment of the present invention;

[0029] Figure 4 It is a schematic diagram of a cross-section structure in one embodiment of the present invention;

[0030] Figure 5 It is a structural schematic diagram of turning over the mold body in one embodiment of the present invention;

[0031] Figure 6 It is a structural schematic diagram of turning over and viewing the mold body in front of one embodiment of the present invention;

[0032] Figure 7 This is a schematic diagram of the structure of the mold body after flipping in one embodiment of the present invention;

[0033] Figure 8 It is a structural schematic diagram of a pushing mechanism pushing out the housing in one embodiment of the present invention;

[0034] Fig. 9 It is a structural schematic diagram of a pushing mechanism in one embodiment of the present invention pushing the housing into the material storage box;

[0035] Fig.10 It is a structural schematic diagram of a demoulding bracket in one embodiment of the present invention;

[0036] Fig.11 This is a schematic diagram of the structure of a positioning member in one embodiment of the present invention;

[0037] Fig.12It is a schematic diagram of the structure of a carrying device in one embodiment of the present invention;

[0038] Fig.13 It is a structural schematic diagram of an adjustment mechanism in one embodiment of the present invention;

[0039] Fig.14 for Figure 7 The enlarged structural diagram of the middle A part;

[0040] Fig.15 for Figure 8 Schematic diagram of the structure with the B part enlarged.

[0041] In the figure: 1. demoulding support; 11. column; 12. top plate; 121. slide; 2. demoulding table; 21. fixed table; 22. movable table; 2201. through slot; 2202. movable slot; 221. guide plate; 23. support leg; 24. adjustment mechanism; 241. slide rail; 242. first motor; 243. screw; 244. screw sleeve; 245. guide sleeve; 25. support plate; 3. clamping member; 31. first power member; 32. movable frame; 321. slider; 33. fixed plate; 34. flip mechanism; 341. second motor; 342. rotating shaft; 343. clamping plate; 4. mold Main body; 41. Shell; 411. Air inlet; 42. Concrete specimen; 5. Air blowing device; 51. Second power member; 52. Air pump connecting box; 521. Connecting pipe; 53. Air outlet nozzle; 6. Supporting device; 61. Third power member; 62. Connecting plate; 63. Supporting platform; 631. Abutting frame; 64. Guide rod; 65. Pushing mechanism; 651. Mounting frame; 6511. Limiting frame; 65111. Limiting groove; 652. Connecting shaft; 653. Gear; 654. Connecting rod; 655. First rack; 656. Second rack; 6561. Limiting block; 657. Pushing plate; 7. Material storage box. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] See also Figure 1-15 The present invention provides a technical solution: a concrete specimen demoulding device, comprising a demoulding bracket 1, on which a lifting demoulding table 2 for placing a mold body 4 is arranged, and further comprising: a clamping member 3, which is arranged on the demoulding bracket 1 and is used to adjust the position of the mold body 4 and clamp it;

[0044] The turning mechanism 34 is arranged on the clamping member 3 and is used to turn the mold body 4;

[0045] The blowing device 5 is arranged on the demoulding support 1 and is used to blow out the concrete test piece 42 in the turned mold body 4;

[0046] The demoulding platform 2 is provided with a plurality of at least one through slot 2201 for only the concrete specimen 42 to pass through, and a supporting device 6 for supporting the concrete specimen 42 is provided at the bottom of the demoulding platform 2 at the position corresponding to the through slot 2201 .

[0047] It should be noted that, during operation, the mold body 4 is placed on the demoulding table 2, and the position of the mold body 4 is adjusted so that it is placed at the upper end of the through groove 2201, and then the clamping member 3 is started to fix the shell 41, and the demoulding table 2 is started to move downward, and then the shell 41 is flipped 180 degrees by the flipping mechanism 34, so that the opening of the shell 41 faces downward, and the blowing device 5 is started to blow air into the inside of the shell 41 to blow out the concrete specimen 42 inside the shell 41, and the lower part of the shell 41 faces downward, so that the mold body 4 is quickly and accurately demoulded, and the wear of the concrete specimen 42 and the demoulding table 2 is avoided. The clamping member 3 and the flipping mechanism 34 are The structure 34 can stably fix and flip the mold to ensure the stability and accuracy of the demolding process. The blowing device 5 is used to blow and demold the mold, avoiding damage to the mold and the test piece by traditional knocking and prying methods, extending the service life of the mold, and ensuring the integrity and quality of the test piece. The pushing mechanism 65 can push the demolded shell 41 from the movable table 22, and there is no need for subsequent staff to remove the shell 41 from the movable table 22, which simplifies the demolding process, improves production efficiency, greatly reduces manual operation steps, reduces the labor intensity and safety risks of operators, and improves work efficiency.

[0048] In a specific embodiment, the demoulding support 1 includes a column 11 and a top plate 12 fixed to the upper end of the column 11 , and the blowing device 5 is arranged on the top plate 12 .

[0049] This design, see Figure 1-10 The column 11 serves as the basic supporting structure of the demoulding bracket 1, ensuring the stability of the entire equipment. The setting of the top plate 12 enables the blowing device 5 to be located in a position that is convenient for operation and maintenance. The blowing device 5 is a key component of the demoulding machine. By blowing compressed air into the mold body 4, the mold and the molded product can be effectively separated to achieve rapid demoulding.

[0050] In one embodiment, the supporting device 6 includes a lifting supporting platform 63 disposed at the bottom of the demoulding platform 2 for supporting the concrete specimen 42;

[0051] The demoulding table 2 includes a fixed table top 21 fixed at the lower end of the column 11, a movable table top 22 movably arranged in the middle of the fixed table top 21 for supporting the housing 41, and an adjustment mechanism 24 fixed at the lower end of the fixed table top 21 and connected to the movable table top 22 for adjusting the installation height of the movable table top 22. A leg 23 is fixed at the lower end of the fixed table top 21.

[0052] The adjusting mechanism 24 includes a first motor 242 fixed to the upper end of the support leg 23, a screw 243 fixed to the power output end of the first motor 242, a screw sleeve 244 threadedly connected to the screw 243, a slide rail 241 fixed to the lower end of the fixed table 21, and a guide sleeve 245 fixed to the screw sleeve 244 and slidably connected to the slide rail 241. A support plate 25 for supporting the movable table 22 is fixed to the upper end of the guide sleeve 245.

[0053] This design, see Figure 1-10 ,as well as Figure 12-13 When the shell 41 needs to be flipped, the first motor 242 is started to drive the screw 243 to rotate, and the screw sleeve 244 moves up and down on the screw 243, thereby driving the support plate 25 and the movable table 22 to descend, providing a flipping space for the shell 41. When the shell 41 is flipped, the first motor 242 is started to flip, driving the movable table 22 to move up, and supporting the shell 41. The design of the slide rail 241 and the guide sleeve 245 ensures the stability and guidance of the movable table 22 during the lifting process. When the concrete specimen 42 is pushed out of the shell 41 under the blowing of the blowing device 5, the supporting platform 63 can support the concrete specimen 42.

[0054] In one embodiment, an abutment frame 631 is provided on the supporting platform 63. Driven by the supporting platform 63, the abutment frame 631 can extend into the through groove 2201 and be flush with the top surface of the demoulding platform 2 to support the concrete specimen 42.

[0055] The supporting device 6 also includes a third power member 61 fixed to the lower end of the movable table 22 and connected to the supporting platform 63 for driving the supporting platform 63 to move. The through groove 2201 is arranged corresponding to the shape of the concrete specimen 42;

[0056] A connecting plate 62 is provided at the power output end of the third power member 61, the upper end of the connecting plate 62 is connected to a supporting platform 63, a guide rod 64 is provided at the lower end of the movable table 22, and the supporting platform 63 is sleeved on the guide rod 64. The third power member 61 includes but is not limited to a linear guide rail, an electric push rod and a cylinder.

[0057] This design, see Fig.10 , Fig.12 , Fig.14 ,as well as Fig.15The third power member 61 drives the supporting platform 63 to move downward through the connecting plate 62, so that when the concrete specimen 42 is pushed out of the shell 41, the abutment frame 631 at the upper end of the supporting platform 63 can firmly drive the concrete specimen 42 to move downward, ensuring the stability of the mold and the product during the demoulding process, effectively preventing the shaking and deformation of the mold, and protecting the integrity of the mold and the product. The concrete specimen 42 is pushed out from the inside of the shell 41, and the shell 41 is left on the movable table 22. When the concrete specimen 42 is completely pushed out of the shell 41, the supporting platform 63 drives the pushing mechanism 65 to move, so that the pushing mechanism 65 pushes the shell 41 on the movable table 22 to one side, and there is no need for subsequent staff to remove the shell 41 from the movable table 22, which simplifies the demoulding process, improves production efficiency, and reduces the labor intensity of operators. The design of the guide rod 64 provides a stable guiding effect for the supporting platform 63, ensures the stability and accuracy of the supporting platform 63 during the up and down movement, avoids the shaking and deviation of the supporting platform 63, and makes the operation of the supporting device 6 more stable and reliable.

[0058] In one embodiment, a pushing mechanism 65 is further included, which is disposed on the demoulding table 2 and is used to push the demoulded housing 41 out of the demoulding table 2 .

[0059] This design, see Fig.12 In the process of the concrete specimen 42 continuously moving downward from the shell 41, the third power member 61 drives the supporting platform 63 to move downward, so that the concrete specimen 42 is pushed out from the inside of the shell 41, and the shell 41 is left on the movable table 22. When the concrete specimen 42 is completely pushed out of the shell 41, the supporting platform 63 drives the pushing mechanism 65 to move, so that the pushing mechanism 65 pushes the shell 41 on the movable table 22 to one side.

[0060] In one embodiment, the pushing mechanism 65 includes a mounting frame 651 fixed on the movable table 22, a connecting shaft 652 rotatably arranged on the mounting frame 651, a gear 653 fixedly sleeved on the connecting shaft 652, a connecting rod 654 fixed on the upper end of the supporting platform 63, a first rack 655 fixed on the upper end of the connecting rod 654 and meshingly connected with the gear 653, and a second rack 656 slidably arranged on the mounting frame 651 and meshingly connected with the gear 653. A pushing plate 657 is arranged on the side of the second rack 656 close to the housing 41, and a moving groove 2202 for the connecting rod 654 to move is opened on the demoulding table 2;

[0061] A limiting frame 6511 is fixed at the upper end of the mounting frame 651, a limiting block 6561 is arranged at the position where the second rack 656 is connected to the limiting frame 6511, a limiting groove 65111 is provided on the limiting frame 6511 for the limiting block 6561 to move, a material guide plate 221 is arranged on the side of the fixed table 21 away from the pushing mechanism 65, and the first rack 655 and the second rack 656 are arranged vertically;

[0062] The concrete specimen 42 is blown out of the outer shell 41, and the abutment frame 631 supports the concrete specimen 42. The supporting platform 63 drives the abutment frame 631 to move downward, and the first rack 655 moves downward along with the supporting platform 63 until the top of the concrete specimen 42 is lower than the demoulding platform 2, and the first rack 655 meshes with the gear 653; the concrete specimen 42 continues to move downward, and the first rack 655 drives the gear 653 to rotate, and the second rack 656 rotates along with the gear 653 to push out the outer shell 41 on the demoulding platform 2.

[0063] This design, see Fig.14 ,as well as Fig.15 When the supporting platform 63 descends, the connecting rod 654 and the first rack 655 descend accordingly. When all the concrete specimens 42 are pushed out of the shell 41, the first rack 655 meshes with the gear 653, driving the gear 653 to rotate, thereby driving the second rack 656 and the pushing plate 657 to move toward the shell 41, and the demoulding completed shell 41 is pushed out from the movable table 22. The pushing plate 657 pushes the shell 41 to the guide plate 221, and the shell 41 falls into the storage box 7 along the guide plate 221 for collection. There is no need for subsequent staff to remove the shell 41 from the movable table 22, which simplifies the demoulding process, improves production efficiency, and reduces the labor intensity of operators. The design of the limit frame 6511 and the limit block 6561 provides limit protection for the pushing mechanism 65, and improves the smooth movement of the second rack 656.

[0064] In one embodiment, the clamping member 3 includes a first power member 31 fixed to the lower end of the top plate 12 and symmetrically arranged, a movable frame 32 arranged at the power output end of the first power member 31, and a fixed plate 33 arranged at the lower end of the movable frame 32 for fixing the outer shell 41. The flipping mechanism 34 is arranged on the fixed plate 33. The first power member 31 includes but is not limited to a linear guide rail, an electric push rod and a cylinder.

[0065] This design, see Fig.11 The symmetrically arranged first power member 31 and the fixed plate 33 can ensure the stability and reliability of fixing the housing 41. By driving the movement of the movable frame 32 and the fixed plate 33 by the first power member 31, the distance between the two fixed plates 33 can be flexibly adjusted to adapt to molds or molded products of different sizes and shapes.

[0066] In one embodiment, a slider 321 is disposed at the upper end of the movable frame 32 , and a slide groove 121 for the slider 321 to slide is disposed at a position of the top plate 12 corresponding to the slider 321 .

[0067] This design, see Fig.11 By sliding the slider 321 in the slide groove 121, the mobile frame 32 can flexibly move horizontally on the top plate 12. The cooperation between the slider 321 and the slide groove 121 can ensure the stability and guidance of the mobile frame 32 during the movement, avoiding the shaking or deviation of the mobile frame 32 during the movement, thereby improving the stability and accuracy of demolding.

[0068] In one embodiment, the flipping mechanism 34 includes a clamping plate 343 rotatably arranged inside the fixing plate 33 and a second motor 341 arranged outside at least one fixing plate 33 , and a rotating shaft 342 of the second motor 341 passes through the fixing plate 33 and is fixedly connected to the clamping plate 343 .

[0069] This design, see Figure 1-11 The flipping mechanism 34 drives the rotating shaft 342 and the clamping plate 343 through the second motor 341 to realize the flipping of the mold body 4. The flipping mechanism 34 is clamped and fixed on both sides of the mold body 4 by the clamping plates 343, ensuring the stability and position accuracy of the mold body 4 during the flipping process, and avoiding poor demoulding or product damage caused by shaking or deviation of the mold body 4, thereby improving the demoulding accuracy. The design of the flipping mechanism 34 can be adjusted and adapted according to different mold bodies 4, and the clamping plate 343 can be replaced or adjusted according to the size and shape of the mold body 4 to ensure stable clamping and flipping.

[0070] In one embodiment, the blowing device 5 includes a second power member 51 fixed to the upper end of the top plate 12, an air pump connecting box 52 arranged at the output end of the second power member 51, and an air outlet nozzle 53 arranged at the lower end of the air pump connecting box 52. One side of the air pump connecting box 52 is connected to an external inflation element through a connecting pipe 521.

[0071] This design, see Figure 1-11 , start the second power member 51 to move downward, so that the air outlet nozzle 53 at the lower end of the air pump connecting box 52 is inserted and fixed in the air inlet 411, and the blowing device 5 blows air into the mold or the molded product through the air pump connecting box 52 and the air outlet nozzle 53, and uses the gas pressure to help the product to be ejected from the mold. This non-contact demoulding method is more efficient than the traditional mechanical ejection method and can shorten the demoulding time. The blowing demoulding method avoids the scratches or deformation of the product surface caused by mechanical ejection, and is particularly suitable for products with high surface quality requirements.

[0072] A method for demoulding a concrete specimen, which is used to use the above-mentioned demoulding device for a concrete specimen, comprises the following steps:

[0073] S1, the air inlet 411 of the mold body 4 is facing downwards and in contact with the demoulding table 2, and the mold body 4 is placed on the upper end of the through groove 2201 at the upper end of the demoulding table 2, so that the mold body 4 fits the push plate 657;

[0074] S2, start the first power member 31 to drive the two fixing plates 33 to move closer to each other, drive the flipping mechanism 34 to squeeze and fix the shell 41 of the mold body 4, move the demoulding table 2 downward until it does not affect the flipping of the shell 41, and the flipping mechanism 34 drives the shell 41 to flip 180 degrees, so that the air inlet 411 on the shell 41 faces upward;

[0075] S3, start the second power member 51 to drive the air pump connection box 52 to move downward, so that the air outlet nozzle 53 is inserted into the air inlet 411 and sealed with the air inlet 411, open the inflatable element connected to the connecting pipe 521, blow air into the air pump connection box 52, and then blow the concrete specimen 42 inside the shell 41 out of the shell 41;

[0076] S4. During the process of the concrete specimen 42 continuously moving downward from the shell 41, the shell 41 is left on the movable table 22, the concrete specimen 42 moves downward along with the supporting platform 63, and the first rack 655 moves downward along with the supporting platform 63 until the top of the concrete specimen 42 is lower than the demoulding platform 2, and the first rack 655 meshes with the gear 653; the concrete specimen 42 continues to move downward, the first rack 655 drives the gear 653 to rotate, and the second rack 656 moves toward the side close to the shell 41 along with the gear 653, driving the push plate 657 to push the shell 41 out of the demoulding platform 2.

[0077] In addition, if there are descriptions involving "first", "second", etc. in the embodiments, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying the importance of the relative description or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

Claims

1. A concrete specimen demoulding device, comprising a demoulding bracket (1), characterized in that: The demoulding support (1) is provided with a lifting demoulding table (2) for placing the mold body (4), and further comprises: a clamping member (3) provided on the demoulding support (1) and used for adjusting the position of the mold body (4) and clamping it; A turning mechanism (34) is arranged on the clamping member (3) and is used to turn the mold body (4); An air blowing device (5) is arranged on the demoulding support (1) and is used to blow out the concrete test piece (42) in the mold body (4) after the mold body (4) is turned over; The demoulding platform (2) is provided with a plurality of at least one through slot (2201) for only allowing the concrete test piece (42) to pass through, and a supporting device (6) for supporting the concrete test piece (42) is provided at a position corresponding to the through slot (2201) at the bottom of the demoulding platform (2); The supporting device (6) comprises: A lifting support platform (63) disposed at the bottom of the demoulding platform (2) and used for supporting the concrete test piece (42); It also includes a pushing mechanism (65), which is arranged on the demoulding table (2) and is used to push the demoulded shell (41) from the demoulding table (2); The pushing mechanism (65) comprises a mounting frame (651) fixed on the demoulding platform (2), a connecting shaft (652) rotatably arranged on the mounting frame (651), a gear (653) fixedly sleeved on the connecting shaft (652), a connecting rod (654) fixed to the upper end of the supporting platform (63), a first rack (655) fixed to the upper end of the connecting rod (654) and meshingly connected to the gear (653), and a second rack (656) slidably arranged on the mounting frame (651) and meshingly connected to the gear (653), a pushing plate (657) being arranged on a side of the second rack (656) close to the housing (41), and a moving groove (2202) for the connecting rod (654) to move is provided on the demoulding platform (2).

2. A concrete specimen demoulding device according to claim 1, characterized in that: An abutment frame (631) is provided on the support platform (63). Driven by the support platform (63), the abutment frame (631) can extend into the through groove (2201) and be flush with the top surface of the demoulding platform (2) to support the concrete test piece (42).

3. A concrete specimen demoulding device according to claim 2, characterized in that: The concrete specimen (42) is blown out of the outer shell (41), the abutment frame (631) supports the concrete specimen (42), the support platform (63) drives the abutment frame (631) to move downward, and the first rack (655) moves downward along with the support platform (63) until the top of the concrete specimen (42) is lower than the demoulding platform (2), and the first rack (655) meshes with the gear (653); the concrete specimen (42) continues to move downward, the first rack (655) drives the gear (653) to rotate, and the second rack (656) rotates along with the gear (653), so as to push the outer shell (41) on the demoulding platform (2) out.

4. A concrete specimen demoulding device according to claim 3, characterized in that: The clamping member (3) comprises a first power member (31) fixed to the lower end of the top plate (12) and symmetrically arranged, a moving frame (32) arranged at the power output end of the first power member (31), and a fixing plate (33) arranged at the lower end of the moving frame (32) for fixing the outer shell (41), and the turning mechanism (34) is arranged on the fixing plate (33).

5. A concrete specimen demoulding device according to claim 4, characterized in that: A sliding block (321) is provided at the upper end of the movable frame (32), and a sliding groove (121) for the sliding block (321) to slide is provided at a position of the top plate (12) corresponding to the sliding block (321).

6. A concrete specimen demoulding device according to claim 5, characterized in that: The turning mechanism (34) comprises a clamping plate (343) rotatably arranged on the inner side of the fixing plate (33) and a second motor (341) arranged on the outer side of at least one of the fixing plates (33); a rotating shaft (342) of the second motor (341) passes through the fixing plate (33) and is fixedly connected to the clamping plate (343).

7. A concrete specimen demoulding device according to claim 6, characterized in that: The blowing device (5) comprises a second power member (51) fixed to the upper end of the top plate (12), an air pump connection box (52) arranged at the output end of the second power member (51), and an air outlet nozzle (53) arranged at the lower end of the air pump connection box (52); one side of the air pump connection box (52) is connected to an external inflation element via a connection pipe (521).

8. A method for demoulding a concrete specimen, using a demoulding device for a concrete specimen according to claim 7, characterized in that: The following steps are involved: S1, the air inlet (411) of the mold body (4) is facing downwards and in contact with the demoulding table (2), and the mold body (4) is placed on the upper end of the through groove (2201) at the upper end of the demoulding table (2), so that the mold body (4) fits the push plate (657); S2, starting the first power member (31) to drive the two fixing plates (33) to move towards each other, driving the flipping mechanism (34) to squeeze and fix the outer shell (41) of the mold body (4), moving the demoulding table (2) downward until the flipping of the outer shell (41) is not affected, and the flipping mechanism (34) drives the outer shell (41) to flip 180 degrees, so that the air inlet (411) on the outer shell (41) faces upward; S3, starting the second power member (51) to drive the air pump connection box (52) to move downward, so that the air outlet nozzle (53) is inserted into the air inlet (411) and is sealed with the air inlet (411), opening the inflatable element connected to the connecting pipe (521), blowing air into the interior of the air pump connection box (52), and then blowing the concrete specimen (42) inside the housing (41) out of the housing (41); S4. During the process of the concrete specimen (42) continuously moving downward from the shell (41), the shell (41) is left on the movable table (22), the concrete specimen (42) moves downward along with the supporting platform (63), and the first rack (655) moves downward along with the supporting platform (63) until the top of the concrete specimen (42) is lower than the demoulding platform (2), and the first rack (655) meshes with the gear (653); the concrete specimen (42) continues to move downward, the first rack (655) drives the gear (653) to rotate, and the second rack (656) moves toward the side close to the shell (41) along with the gear (653), driving the push plate (657) to push the shell (41) out of the demoulding platform (2).

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