Portable concrete test piece demolding device

Abstract

A portable concrete test piece demolding device comprises a frame, an upper moving mechanism is installed on the top of the frame, a middle demolding mechanism is fixedly installed on the upper moving mechanism, a lower conveying mechanism is installed below the middle demolding mechanism, and the upper moving mechanism, the middle demolding mechanism and the lower conveying mechanism all communicate with a power source. The control system is further communicated with and controlled by the control system; the middle demolding mechanism is provided with a clamp, a distance measuring sensor and a gravity sensor are arranged on the clamp, the clamping range is flexibly adjusted according to the size of a pouring mold, whether demolding is completed or not is detected, a conveying belt below the clamp conveys a test piece needing demolding and a mold obtained after demolding, and the device is further provided with a sponge cushion layer and a rubber cushion layer. The container is used for containing a demoulded concrete test piece; the concrete test piece demolding device can rapidly and stably complete demolding of a concrete test piece, guarantees the integrity of the demolded test piece, reduces the workload of manual demolding, and meanwhile avoids damage to the test piece in the demolding process.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete testing equipment, in particular to a convenient concrete test specimen demoulding device. Background Art

[0002] As the core material of the construction industry, the performance research and quality control of concrete are key links to ensure the safety and durability of buildings. In the process of concrete performance research, the preparation and demoulding of concrete specimens are indispensable steps. The operation quality during the demoulding process directly affects the integrity of the specimens and the accuracy of subsequent performance tests. At present, the demoulding of concrete specimens mainly relies on manual operation, which has problems such as high labor intensity, long demoulding time, and unstable demoulding effect, especially when dealing with large quantities of specimens. These problems are particularly prominent. Some concrete specimen demoulding devices often require manual operation of multiple parts, which is not only time-consuming and labor-intensive, but also easy to cause damage to the specimens during operation, affecting the accuracy of the test results, and further increasing the difficulty and workload of demoulding. Some devices can achieve good demoulding effects, but they are mostly limited to the demoulding of a single specimen. The processing effect of large-scale specimens is not good, and the collection of subsequent molds and test blocks has not been well solved.

[0003] For example, CN219946687U discloses a demoulding device for concrete test blocks, which is mainly composed of two core parts: a base and a demoulding mechanism. Among them, in the demoulding mechanism, the demoulding frame is used to place the concrete test block to be demoulded, and a vibrator is integrated inside the base. The vibration generated by the vibrator is transmitted to the concrete test block through the demoulding frame, so that it is separated from the mold, and the demoulded concrete test block falls on the collection plate under the base. However, the device does not realize the automatic demoulding process of the test piece, and the test piece needs to be placed on the bearing table manually. And it does not solve the problems of demoulding of large batches of test pieces, transmission of test pieces to be demoulded, and subsequent mold collection. Therefore, it has become an urgent problem to be solved in the current field of concrete performance testing technology to develop a convenient demoulding device for concrete test pieces to improve the demoulding efficiency of large batches of test pieces, reduce labor intensity, and reduce test piece damage. The device needs to be simple in structure and easy to operate, and at the same time have good demoulding effect and test piece protection performance to meet the actual needs of concrete performance testing. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a convenient concrete test specimen demoulding device, which solves the problems of cumbersome operations, long time consumption, easy damage to the specimen surface, and collection of specimens and molds after demoulding of large quantities of concrete test specimens by laboratory personnel, and realizes integrated and efficient transportation, demoulding and collection of large quantities of concrete test specimens of different sizes, while protecting the integrity of the specimens.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a convenient concrete test specimen demoulding device, including a frame, an upper moving mechanism is installed on the top of the frame, a middle demoulding mechanism is fixedly installed on the upper moving mechanism, a lower transport mechanism is installed below the middle demoulding mechanism, and a collecting mechanism is installed below and at the end of the lower transport mechanism. The upper moving mechanism, the middle demoulding mechanism, and the lower transport mechanism are all connected to a power supply, and are also respectively connected to and controlled by a control system.

[0006] In a preferred solution, the frame includes a group of supporting frames, and the supporting frames include a group of upright posts. Cross braces are fixedly installed between the upright posts, and the cross braces are slide rails.

[0007] In a preferred solution, the upper moving mechanism is mounted on a group of cross braces of a supporting frame, and includes pulleys installed on a group of cross braces. The pulleys at both ends are fixed together by a pulley shaft. A mounting plate is mounted on the pulley shaft. A first motor is fixedly mounted on one side of the mounting plate. The first motor is meshed with the pulley shaft gear for transmission, thereby driving the pulley shaft to reciprocate back and forth. The first motor is connected to and controlled by the control system.

[0008] In a preferred solution, the middle demoulding mechanism is installed between a group of mounting plates of the upper moving mechanism, including a group of auxiliary cross braces installed on the mounting plates, a group of electric telescopic rods are installed and fixed between the group of auxiliary cross braces, a second motor is installed and fixed between the group of electric telescopic rods, a clamp is installed and fixed under the electric telescopic rods, and the second motor is connected to and controlled by the control system.

[0009] In a preferred embodiment, the clamp comprises a group of clamp arms, on which a clamping electric cylinder, a distance sensor and a gravity sensor are installed, a clamping plate is detachably installed on the inner side of the clamp arm, a rubber interlayer is installed on the inner side of the clamping plate, and the clamping electric cylinder, the distance sensor and the gravity sensor are connected to the control system.

[0010] In a preferred solution, the clamping plate is configured to be concave-shaped, and the rubber interlayer pad is installed in the concave-shaped notch.

[0011] In the preferred scheme, the lower transport mechanism is installed below the middle demoulding mechanism, and includes an input conveyor belt and an output conveyor belt arranged in parallel below the middle demoulding mechanism. The input conveyor belt and the output conveyor belt are provided with support frames and both have their own driving mechanisms. The driving mechanisms are connected to and controlled by the control system.

[0012] In a preferred solution, the collecting mechanism includes a first collecting mechanism installed below the lower transport mechanism, and a second collecting mechanism installed at the end of the output conveyor belt of the lower transport mechanism.

[0013] In a preferred solution, the first collecting mechanism is arranged between the input conveyor belt and the output conveyor belt, extending to below the input conveyor belt and the output conveyor belt, and includes a support plate fixed between two support frames of the input conveyor belt and the output conveyor belt, a rubber pad layer is laid flat on the support plate, and a sponge layer is stacked on the rubber pad layer.

[0014] In a preferred solution, the second collecting mechanism is a mold collecting box, and casters are provided at the bottom of the mold collecting box, and the casters are equipped with brake devices.

[0015] The utility model provides a convenient concrete test specimen demoulding device, which has the following beneficial effects:

[0016] 1. The utility model can complete key steps such as lifting and demoulding without excessive manual intervention, which significantly reduces the labor intensity of operators. It is easy to operate, improves demoulding efficiency, shortens the experimental cycle, and reduces human operation errors, ensuring the accuracy and consistency of demoulding;

[0017] 2. The demoulding mechanism of the utility model is exquisitely designed, and the demoulding plate is adapted to the shape of the concrete specimen, which can ensure uniform force during the demoulding process and avoid damage to the specimen during the demoulding process. It has strong versatility and flexibility and can be demoulded according to different specimen shapes and sizes to meet diverse demoulding needs.

[0018] 3. The utility model realizes the coordinated work of the upper moving mechanism, the middle demoulding mechanism and the lower transport mechanism through the control system, realizes the automation of demoulding of concrete specimens, greatly improves the demoulding efficiency, and reduces the labor intensity of manual operation;

[0019] 4. The clamp in the middle demoulding mechanism of the utility model is equipped with a distance sensor and a gravity sensor, which can monitor the position and weight of the test piece in real time to ensure that the demoulding process is accurate and reliable. The clamping plate inside the clamp adopts an electric cylinder design, which can adapt to concrete test pieces of different sizes, improving the versatility and adaptability of the device;

[0020] 5. The rubber interlayer inside the clamp of the utility model and the rubber cushion layer and sponge layer in the first collecting mechanism effectively protect the safety of the specimen and the mold during demoulding and transportation, and reduce the breakage rate of the concrete specimen;

[0021] 6. The lower transport mechanism of the utility model realizes the automatic transport of test pieces and molds through the input conveyor belt and the output conveyor belt, and the bottom of the mold collection box in the second collection mechanism is provided with casters and brake devices, which facilitates the handling and storage of the collected molds, thereby improving the convenience of the entire work process;

[0022] 7. The utility model is user-friendly and intuitive to operate. The control system realizes integrated control of the entire demoulding process. Even non-professional operators can quickly get started, which reduces the requirements for personnel skills. In addition, the device does not require human contact mechanisms, which ensures the safety of the staff.

[0023] 8. The utility model adopts electric drive and transmission, which is more energy-saving and environmentally friendly than traditional hydraulic or pneumatic systems, reduces energy consumption and emissions, and adopts modular design between various components, which is convenient for replacement and maintenance, reducing maintenance costs and time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described below in conjunction with the accompanying drawings and implementation examples:

[0025] Figure 1 It is a schematic diagram of the overall assembly of the utility model;

[0026] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 3 This is a schematic diagram of the installation of the input conveyor belt and the output conveyor belt of the utility model;

[0028] Figure 4 It is a structural schematic diagram of the demoulding clamp of the utility model;

[0029] In the figure: frame 1, upper moving mechanism 2, middle demoulding mechanism 3, lower transport mechanism 4, collecting mechanism 5, test piece 6, column 11, cross brace 12, pulley 21, pulley shaft 22, mounting plate 23, first motor 24, auxiliary cross brace 31, electric telescopic rod 32, second motor 33, clamp 34, input conveyor belt 41, output conveyor belt 42, support frame 43, first collecting mechanism 51, second collecting mechanism 52, clamping arm 341, distance measuring sensor 342, gravity sensor 343, clamping plate 344, rubber interlayer 345. DETAILED DESCRIPTION

[0030] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0031] like Figures 1 to 4 As shown, a portable concrete test specimen demoulding device comprises a frame 1, an upper moving mechanism 2 is installed on the top of the frame 1, a middle demoulding mechanism 3 is fixedly installed on the upper moving mechanism 2, a lower transport mechanism 4 is installed below the middle demoulding mechanism 3, a collecting mechanism 5 is installed below and at the end of the lower transport mechanism 4, the upper moving mechanism 2, the middle demoulding mechanism 3, and the lower transport mechanism 4 are all connected to a power supply, and are also respectively connected to and controlled by a control system.

[0032] In this embodiment, the frame 1 includes a group of support frames, and the support frames include a group of columns 11. Cross braces 12 are fixedly installed between the columns 11, and the cross braces 12 are slide rails.

[0033] Furthermore, the upper moving mechanism 2 is mounted on a group of cross braces 12 of the supporting frame, and includes a pulley 21 installed on a group of cross braces 12. The pulleys 21 at both ends are fixed together through a pulley shaft 22. A mounting plate 23 is mounted on the pulley shaft 22. A first motor 24 is fixedly mounted on one side of the mounting plate 23. The first motor 24 is gear-engaged with the pulley shaft 22 to drive the pulley shaft 22 to reciprocate back and forth. The first motor 24 is connected to the control system and is controlled by it.

[0034] Furthermore, the middle demoulding mechanism 3 is installed between a group of mounting plates 23 of the upper moving mechanism 2, including a group of auxiliary cross braces 31 installed on the mounting plates 23, a group of electric telescopic rods 32 are installed and fixed between the group of auxiliary cross braces 31, a second motor 33 is installed and fixed between the group of electric telescopic rods 32, a clamper 34 is installed and fixed under the electric telescopic rods 32, and the second motor 33 is connected to the control system and controlled by it.

[0035] Furthermore, the clamp 34 includes a group of clamp arms 341, on which a clamping electric cylinder, a distance sensor 342 and a gravity sensor 343 are installed, a clamping plate 344 is detachably installed on the inner side of the clamp arm 341, a rubber interlayer 345 is installed on the inner side of the clamping plate 344, and the clamping electric cylinder, the distance sensor 342 and the gravity sensor 343 are connected to the control system.

[0036] Furthermore, the clamping plate 344 is configured to be concave-shaped, and the rubber interlayer 345 is padded in the concave-shaped notch.

[0037] Furthermore, the lower transport mechanism 4 is installed below the middle demoulding mechanism 3, and includes an input conveyor belt 41 and an output conveyor belt 42 arranged in parallel below the middle demoulding mechanism 3. The input conveyor belt 41 and the output conveyor belt 42 are provided with a support frame 43, and both have their own driving mechanism, and the driving mechanism is connected to and controlled by the control system.

[0038] Furthermore, the collecting mechanism 5 includes a first collecting mechanism 51 installed below the lower transport mechanism 4 , and a second collecting mechanism 52 installed at the end of the output conveyor belt 42 of the lower transport mechanism 4 .

[0039] Furthermore, the first collecting mechanism 51 is arranged between the input conveyor belt 41 and the output conveyor belt 42, extending to below the input conveyor belt 41 and the output conveyor belt 42, and includes a support plate fixed between two support frames 43 of the input conveyor belt 41 and the output conveyor belt 42, and a rubber pad layer is laid flat on the support plate, and a sponge layer is stacked on the rubber pad layer.

[0040] Furthermore, the second collecting mechanism 52 is a mold collecting box, and casters are provided at the bottom of the mold collecting box, and the casters are equipped with brake devices.

[0041] When in use: under the supply of power and the setting of the external control system, the driving mechanism drives the input conveyor belt 41 to transport the demolding specimen 6 to the bottom of the clamp 34. After the distance sensor 343 on the clamp 34 detects the demolding specimen 6, the clamp 34 closes to clamp it. At this time, the first motor 24 drives the pulley shaft 22 to move backward to between the two conveyor belts. Then, the second motor 33 drives the electric telescopic rod 32 to drive the clamp 34 to move up and down quickly for demolding. When the gravity sensor 342 on the clamp 34 detects the change in gravity, it means that the demolding is completed. The first motor 24 drives the pulley shaft 22 to move above the output conveyor belt 43. The clamp 34 releases the mold onto the output conveyor belt 42 and transports it to the mold collection box. The first motor 24 drives the pulley shaft 22 back to the top of the input conveyor belt 41. The demolding work is performed reciprocatingly in the above process. The specific operation method and steps are as follows:

[0042] Step 1: Before using the demoulding device, first ensure that all parts of the structure, external control system and power supply are safely connected and stably powered, check each component mechanism to ensure that they are in normal working condition to ensure the efficiency and safety of the demoulding process;

[0043] Step 2: Place the demoulding specimens 6 that need to be cured on the carrying plate of the input conveyor belt 41 in sequence, and start the equipment through the external control system. Under the precise control of the external control system, the transportation mechanism 4 starts to drive the input conveyor belt 41 to transport the concrete specimens 6 to be demoulded smoothly and continuously to the bottom of the clamp 34;

[0044] Step 3: When the distance sensor 343 in the demoulding mechanism 3 detects that the demoulding specimen 6 reaches the bottom of the clamp 343, the clamp 34 will close quickly according to the command of the external control system. After the clamp 34 successfully clamps the specimen 6, the first motor 24 drives the pulley shaft 22 to move backward to between the two conveyor belts, and the second motor 33 drives the electric telescopic rod 32 to drive the clamp 34 to move up and down quickly, so that the specimen 6 is separated from the mold. During the demoulding process, the gravity sensor 342 on the clamp 34 monitors the gravity change of the specimen in real time. When a significant change in gravity is detected, the external control system determines that the demoulding has been completed, and the demoulding specimens that have fallen on the sponge layer need to be collected for subsequent experiments;

[0045] Step 4: After demoulding is completed, the first motor 24 drives the pulley shaft 22 to move forward again, the clamper 34 is moved to the top of the output conveyor belt 41, and releases the demoulded mold onto the output conveyor belt 42. The demoulded mold is smoothly transported to the mold collection box by the output conveyor belt 42. The mold in the collection box needs to be taken out and cleaned for next use;

[0046] Step 5: After all demoulding test pieces 6 are demoulded, turn off the power supply and external control system, clean the debris on the equipment, and cover it with a protective cover to ensure its service life.

[0047] In the preferred solution, the frame 1 includes a group of supporting frames, and the supporting frame includes a group of columns 11, and cross braces 12 are installed and fixed between the columns 11, and the cross braces 12 are slide rails; the above arrangement enables each mechanism to be fixed and supports the operation of each mechanism. The cross braces 12 serve as slide rails, providing a stable moving track for the upper moving mechanism 2, thereby ensuring the stability and operation accuracy of the entire system.

[0048] In the preferred scheme, the upper moving mechanism 2 is mounted on a group of cross braces 12 of a supporting frame, and includes a pulley 21 installed on a group of cross braces 12. The pulleys 21 at both ends are fixed together by a pulley shaft 22. A mounting plate 23 is mounted on the pulley shaft 22, and a first motor 24 is fixedly mounted on one side of the mounting plate 23. The first motor 24 is engaged with the pulley shaft 22 for gear transmission to push the pulley shaft 22 to reciprocate back and forth; the first motor 24 is connected to and controlled by the control system; the above arrangement enables the upper moving mechanism 2 to slide on the cross brace 12 through the pulley 21 to achieve flexible movement in the horizontal direction. The gear engagement transmission of the first motor 24 and the pulley shaft 22 provides a stable and reliable power source for the movement of the upper moving mechanism 2, and precise control and adjustment can be achieved through connection with the control system.

[0049] In the preferred solution, the middle demoulding mechanism 3 is installed between a group of mounting plates 23 of the upper moving mechanism 2, including a group of auxiliary cross braces 31 installed on the mounting plates 23, a group of electric telescopic rods 32 are installed and fixed between the group of auxiliary cross braces 31, a second motor 33 is installed and fixed between the group of electric telescopic rods 32, a clamper 34 is installed and fixed below the electric telescopic rods 32, and the second motor 33 is connected to and controlled by the control system; the above arrangement enables the middle demoulding mechanism 3 to realize the clamping and demoulding operations of the mold through the extension and retraction of the electric telescopic rods 32 and the driving of the second motor 33, flexibly adapts to molds of different shapes and sizes, and improves the efficiency and accuracy of demoulding.

[0050] In the preferred embodiment, the clamp 34 includes a group of clamp arms 341, on which a clamping electric cylinder, a distance sensor 342 and a gravity sensor 343 are installed. A clamping plate 344 is detachably installed on the inner side of the clamp arm 341, and a rubber interlayer 345 is installed on the inner side of the clamping plate 344. The clamping electric cylinder, the distance sensor 342 and the gravity sensor 343 are connected to the control system. The above arrangement enables the clamp 34 to clamp the mold through the clamping electric cylinder. At the same time, the distance sensor 342 and the gravity sensor 343 can monitor the tightness of the clamping and the weight of the mold in real time, provide feedback data for the control system, ensure the stability and safety of the clamping, and the rubber interlayer 345 can protect the mold surface and prevent damage during the clamping process.

[0051] In the preferred solution, the clamping plate 344 is configured to be concave, and the rubber interlayer 345 is padded in the concave notch; the above configuration enables the clamping plate 344 to better adapt to the shape of the mold, ensuring the stability and accuracy of the clamping. The configuration of the rubber interlayer 345 padded in the notch can further increase the friction of the clamping, preventing the mold from sliding or falling off during the clamping process, while effectively protecting the mold from damage.

[0052] In the preferred scheme, the lower transport mechanism 4 is installed below the middle demoulding mechanism 3, and includes an input conveyor belt 41 and an output conveyor belt 42 arranged in parallel below the middle demoulding mechanism 3. The input conveyor belt 41 and the output conveyor belt 42 are provided with a support frame 43, and both have their own driving mechanism, and the driving mechanism is connected to and controlled by the control system; the above arrangement enables the lower transport mechanism 4 to realize automatic transportation of the mold through the input conveyor belt 41 and the output conveyor belt 42, and the connection between the driving mechanism and the control system enables the speed of the conveyor belt to be flexibly adjusted to adapt to different demoulding requirements.

[0053] In the preferred embodiment, the collecting mechanism 5 includes a first collecting mechanism 51 installed below the lower transport mechanism 4, and a second collecting mechanism 52 installed at the end of the output conveyor belt 42 of the lower transport mechanism 4; the above arrangement can conveniently collect and process the test pieces 6 and the molds, the first collecting mechanism 51 is used to collect the test pieces that have completed the demolding operation, and the second collecting mechanism 52 is used to collect the molds that have completed the demolding operation, thereby improving the orderliness and efficiency of the production process.

[0054] In a preferred embodiment, the first collecting mechanism 51 is arranged between the input conveyor belt 41 and the output conveyor belt 42, extending to below the input conveyor belt 41 and the output conveyor belt 42, and includes a support plate fixed between two support frames 43 of the input conveyor belt 41 and the output conveyor belt 42, and a rubber cushion layer is laid flat on the support plate, and a sponge layer is stacked on the rubber cushion layer; the above arrangement is conducive to increasing the collection and receiving area of ​​the specimen 6, and can reduce the impact force generated when the specimen 6 falls, thereby protecting the specimen 6 from damage.

[0055] In a preferred embodiment, the second collection mechanism 52 is a mold collection box, and casters are provided at the bottom of the mold collection box, and the casters are equipped with brake devices. The above arrangement is conducive to the centralized collection of molds that have completed the demolding operation. The casters at the bottom allow the collection box to be flexibly moved, which is convenient for transporting the collected molds to the designated location. At the same time, the brake device on the casters can ensure that the collection box can stay stably in place when needed to prevent sliding or tipping.

[0056] In summary, the utility model proposes a convenient concrete test specimen demoulding device, which is composed of an upper moving mechanism 2, a middle demoulding mechanism 3, a lower transport mechanism 4, a collecting mechanism 5, an external control system and a power supply; when in use, under the connection of the external control system and the power supply, the first motor 24 in the upper moving mechanism 2 is engaged with the pulley shaft 22 gears to drive the pulley shaft 22 to move back and forth, thereby completing the back and forth movement of the specimen 6 and the mold; the middle demoulding mechanism 3 is the core component, and the electric telescopic rod 3 2 drives the specimen 6 clamp 34 to shake up and down quickly to realize demoulding; the electric telescopic rod 32 adopts a double-axis electric telescopic rod 32 to speed up the demoulding efficiency, and the clamp 34 adopts a clamping electric cylinder control to adjust its clamping range according to different specimen 6 sizes. A distance sensor 342 and a gravity sensor 343 are installed on the clamp 34, which can respectively detect the position of the demoulding specimen 6 and then automatically clamp it, and detect whether the demoulding is completed. The clamping plate 344 on the clamp 34 is a concave design and has a built-in rubber interlayer 345, which can ensure The stability of clamping is improved while reducing damage to the test piece 6; the lower transportation equipment 4, including an input conveyor belt 41 and an output conveyor belt 42, can orderly transport the test piece 6 to be demolded and the mold after demolding; the collecting mechanism 5 is composed of a first collecting mechanism 51 and a second collecting mechanism 52, and the first collecting mechanism 51 is stacked with a sponge cushion layer and a rubber cushion layer to receive the demolded test piece 6 to ensure the integrity of the test piece 6; a second collecting mechanism 52 is placed at the end of the output conveyor belt 42 to collect the mold after demolding; the labor of manually placing the test piece 6 and removing the mold is saved; the device is exquisitely designed, simple to operate, and integrates transportation, demolding and collection, and can quickly and smoothly remove the concrete test piece 6 from the mold, reducing the difficulty and labor intensity of the test personnel; at the same time, the surface of the test piece 6 is not easily damaged during the demolding process, which ensures the integrity of the test piece 6 and the accuracy of the test results; the demolding device for concrete test specimen 6 has brought great convenience and benefits to concrete testing work with its excellent performance, and has good practical application value.

Claims

1. A portable concrete test specimen demoulding device, characterized in that: The invention comprises a frame (1), wherein an upper moving mechanism (2) is mounted on the top of the frame (1), a middle demoulding mechanism (3) is mounted and fixed on the upper moving mechanism (2), a lower transport mechanism (4) is mounted below the middle demoulding mechanism (3), and a collecting mechanism (5) is mounted below and at the end of the lower transport mechanism (4). The upper moving mechanism (2), the middle demoulding mechanism (3), and the lower transport mechanism (4) are all connected to a power supply, and are also respectively connected to and controlled by a control system.

2. A portable concrete test specimen demoulding device according to claim 1, characterized in that: The frame (1) comprises a group of support frames, the support frames comprise a group of upright posts (11), cross braces (12) are fixedly installed between the upright posts (11), and the cross braces (12) are slide rails.

3. A portable concrete test specimen demoulding device according to claim 2, characterized in that: The upper moving mechanism (2) is mounted on a group of cross braces (12) of a supporting frame, and comprises a pulley (21) mounted on the group of cross braces (12). The pulleys (21) at both ends are fixed together by a pulley shaft (22). A mounting plate (23) is sleeved on the pulley shaft (22). A first motor (24) is fixedly mounted on one side of the mounting plate (23). The first motor (24) is gear-engaged with the pulley shaft (22) to drive the pulley shaft (22) to reciprocate forward and backward. The first motor (24) is connected to a control system and is controlled by it.

4. A portable concrete test specimen demoulding device according to claim 3, characterized in that: The middle demoulding mechanism (3) is installed between a group of mounting plates (23) of the upper moving mechanism (2), and comprises a group of auxiliary cross braces (31) installed on the mounting plates (23); a group of electric telescopic rods (32) are installed and fixed between the group of auxiliary cross braces (31); a second motor (33) is installed and fixed between the group of electric telescopic rods (32); a clamp (34) is installed and fixed below the electric telescopic rods (32); and the second motor (33) is connected to and controlled by a control system.

5. A portable concrete test specimen demoulding device according to claim 4, characterized in that: The clamp (34) comprises a group of clamp arms (341), on which a clamping electric cylinder, a distance sensor (342) and a gravity sensor (343) are mounted, a clamping plate (344) is detachably mounted on the inner side of the clamp arm (341), a rubber interlayer (345) is mounted on the inner side of the clamping plate (344), and the clamping electric cylinder, the distance sensor (342) and the gravity sensor (343) are connected to a control system.

6. A portable concrete test specimen demoulding device according to claim 5, characterized in that: The clamping plate (344) is arranged in a concave shape, and the rubber interlayer (345) is cushioned in the concave notch.

7. A portable concrete test specimen demoulding device according to claim 4, characterized in that: The lower transport mechanism (4) is installed below the middle demoulding mechanism (3), and comprises an input conveyor belt (41) and an output conveyor belt (42) arranged in parallel below the middle demoulding mechanism (3); the input conveyor belt (41) and the output conveyor belt (42) are provided with a support frame (43) and both have their own drive mechanisms, which are connected to and controlled by a control system.

8. A portable concrete test specimen demoulding device according to claim 7, characterized in that: The collecting mechanism (5) comprises a first collecting mechanism (51) installed below the lower transport mechanism (4), and a second collecting mechanism (52) installed at the end of the output conveyor belt (42) of the lower transport mechanism (4).

9. A portable concrete test specimen demoulding device according to claim 8, characterized in that: The first collecting mechanism (51) is arranged between the input conveyor belt (41) and the output conveyor belt (42), extending to below the input conveyor belt (41) and the output conveyor belt (42), and comprises a support plate fixed between two support frames (43) of the input conveyor belt (41) and the output conveyor belt (42), a rubber cushion layer being laid flat on the support plate, and a sponge layer being stacked and laid on the rubber cushion layer.

10. A portable concrete test specimen demoulding device according to claim 8, characterized in that: The second collecting mechanism (52) is a mold collecting box, and casters are arranged at the bottom of the mold collecting box, and the casters are equipped with brake devices.

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