Concrete test block molding and demolding device

Abstract

The application relates to the technical field of concrete processing, and provides a concrete test block forming and demolding device, which comprises a base, a supporting column fixedly arranged at the center of the base, a forming mechanism comprising a plurality of forming assemblies uniformly distributed along the circumference of the supporting column, each forming assembly comprising a forming column, a forming platform and a concrete test mold, the forming column being arranged on the base, the forming platform being arranged between the forming column and the supporting column, and the plurality of concrete test molds being arranged on the forming platform along the length direction of the forming platform, a vibrating mechanism corresponding to the concrete test mold, a troweling mechanism rotationally connected to the supporting column and located above the forming platform, a demolding mechanism arranged on the forming platform and acting on the concrete test mold, and a control assembly arranged on the supporting column and electrically connected with the vibrating mechanism, the troweling mechanism and the demolding mechanism. The device adopts an integrated structure design and automatic control, and realizes full-process standardization through collaborative work of various components.

Description

Technical Field

[0001] This application relates to the field of concrete processing technology, and more specifically, to a concrete test block molding and demolding device. Background Technology

[0002] Current concrete specimen preparation techniques mostly employ manual operation or semi-automated equipment in a step-by-step process of molding, vibration, smoothing, and demolding. While widely used, this method has significant drawbacks. During vibration, the strength, time, and frequency are highly dependent on the operator's experience. Insufficient vibration can lead to residual air bubbles and uneven density, while over-vibration can cause separation of cement paste and aggregate, both of which significantly reduce the compressive strength of the specimen. In the smoothing stage, manual leveling makes it difficult to ensure the flatness and perpendicularity of the pressure surface of the specimen, resulting in distorted subsequent pressure test data. During demolding, improper handling, such as forceful hammering, can easily damage the edges and corners of the specimen, rendering it unusable. Furthermore, the mold positioning in traditional processes is often insecure, easily shifting under vibration force, directly affecting the dimensional accuracy of the specimen. The entire process is labor-intensive, inefficient, and exhibits high quality fluctuations, severely impacting the accurate assessment of the concrete strength in engineering projects. Therefore, existing technologies urgently need an integrated and automated device that can achieve precise positioning, automatic vibration and smoothing, and non-destructive demolding, in order to comprehensively improve the standardization level, production efficiency, and reliability of concrete test block production. Utility Model Content

[0003] This application aims to at least address the technical problems in related technologies, such as the difficulty in controlling the number of vibrations of concrete test blocks, insufficient precision in smoothing the surface of the test blocks, and non-standard demolding.

[0004] To solve the above-mentioned technical problems, this application is implemented as follows: This application provides a concrete test block molding and demolding device, comprising: a base, which is a disc-shaped structure; a supporting column, fixedly disposed at the center of the base; a molding mechanism, including multiple molding components evenly distributed along the circumference of the supporting column; each molding component includes a molding column, a molding platform, and a concrete test mold, the molding column being disposed on the base, the molding platform being erected between the molding column and the supporting column, and the multiple concrete test molds being arranged on the molding platform along its length; a vibration mechanism, disposed corresponding to the concrete test mold, for vibrating the concrete; a smoothing mechanism, rotatably connected to the supporting column and located above the molding platform; a demolding mechanism, disposed on the molding platform and acting on the concrete test mold, for assisting demolding; and a control component, disposed on the supporting column and electrically connected to the vibration mechanism, the smoothing mechanism, and the demolding mechanism.

[0005] The concrete specimen molding and demolding device provided in this application achieves full automation and standardization from positioning to demolding through the coordinated operation of molding, vibration, smoothing, demolding, and control mechanisms. In scenarios requiring precise positioning and efficient molding, the molding mechanism adopts a radial layout with a central support column as its core, and multiple molding platforms are evenly distributed circumferentially, achieving efficient space utilization and parallel operation. The molding platforms and the concrete specimen mold are tightly connected through dovetail positioning grooves and a quick-clamping system, ensuring the absolute stability of the concrete specimen mold during vibration and fundamentally solving the positioning deviation problem. In scenarios requiring automatic vibration and compaction control, the vibration mechanism is driven by preset parameters from the control components, precisely controlling the vibration devices distributed on both sides of the concrete specimen mold. This achieves standardization of vibration time and intensity, effectively ensuring uniform compaction of the concrete and avoiding the uncertainties of manual operation. In the intelligent smoothing and surface leveling scenario, the smoothing mechanism uses a rotary motor to drive the scraper suspended from the central support column to rotate. Its multi-degree-of-freedom design allows for adaptive leveling, performing 360° smoothing of the top surface of all circumferential concrete test molds without dead angles, ensuring that the surface of the test blocks meets the flatness requirements of the specifications. In the non-destructive demolding and rapid circulation scenario, the demolding mechanism adopts a pneumatic principle, using a demolding air pump and connecting hose to apply pressure evenly to the concrete test mold, achieving stable ejection of the test blocks. This eliminates the need for traditional violent hammering methods and reduces the demolding damage rate to an extremely low level. The entire process is completed collaboratively by various mechanisms under the unified command of the control components, realizing a fundamental shift in concrete test block production from "experience-based" to "standardized".

[0006] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0007] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of a concrete test block molding and demolding device according to an embodiment of this application; Figure 2 for Figure 1 A schematic diagram of the AA section of the concrete test block molding and demolding device in the embodiment shown; Figure 3 for Figure 1 A schematic diagram of the vibration mechanism and demolding mechanism in the concrete specimen molding and demolding device of the embodiment shown.

[0008] in, Figures 1 to 3 The correspondence between the reference numerals and component names in the attached drawings is as follows: 100 Concrete test block forming and demolding device, 110 Base, 120 Support column, 130 Forming mechanism, 132 Forming component, 134 Forming column, 136 Forming platform, 138 Concrete test mold, 140 Vibration mechanism, 142 Vibration device, 144 Vibration motor, 150 Smoothing mechanism, 152 Rotating rod, 154 Scraper, 156 Rotary motor, 160 Demolding mechanism, 162 Demolding air pump, 164 Clamping device, 166 Connecting hose, 170 Control component, 180 Actuating motor, 190 Electronic level. Detailed Implementation

[0009] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0010] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0011] The following reference Figures 1 to 3 This application describes a concrete test block molding and demolding apparatus 100 provided according to some embodiments of the present application.

[0012] like Figures 1 to 3 As shown, Figure 1 This is a schematic diagram of the structure of a concrete test block molding and demolding device 100 according to an embodiment of this application; Figure 2 for Figure 1 A schematic diagram of the concrete test block molding and demolding device 100 of the embodiment shown in the figure (AA section view). Figure 3 for Figure 1 A schematic diagram of the structure of the vibration mechanism 140 and the demolding mechanism 160 in the concrete test block molding and demolding device 100 of the embodiment shown.

[0013] like Figure 1 , Figure 2 and Figure 3As shown, an embodiment of this application provides a concrete test block molding and demolding device 100, comprising: a base 110, which is a disc-shaped structure; a supporting column 120, which is fixedly disposed at the center of the base 110; and a molding mechanism 130, comprising a plurality of molding components 132 evenly distributed around the supporting column 120; each molding component 132 includes a molding column 134, a molding platform 136, and a concrete test mold 138, wherein the molding column 134 is disposed on the base 110, and the molding platform 136 is erected between the molding column 134 and the supporting column 120. Concrete test molds 138 are arranged along the length of the forming platform 136 on the forming platform 136; a vibration mechanism 140 is set corresponding to the concrete test molds 138 and is used to vibrate the concrete; a smoothing mechanism 150 is rotatably connected to the support column 120 and is located above the forming platform 136; a demolding mechanism 160 is set on the forming platform 136 and acts on the concrete test molds 138 to assist in demolding; a control component 170 is set on the support column 120 and is electrically connected to the vibration mechanism 140, the smoothing mechanism 150 and the demolding mechanism 160.

[0014] like Figure 1 , Figure 2 and Figure 3 As shown, the concrete test block forming and demolding device 100 provided in this application includes a base 110, a support column 120, a forming mechanism 130, a vibration mechanism 140, a smoothing mechanism 150, a demolding mechanism 160, and a control component 170. The base 110 is a disc-shaped structure used to support the concrete test block forming and demolding device 100. The support column 120 is fixedly set at the center of the base 110. The forming mechanism 130 includes multiple forming components 132 evenly distributed around the support column 120. Each forming component 132 includes a forming column 134, a forming platform 136, and a concrete test mold 138. Multiple forming columns 134 are evenly distributed around the edges of the base 110. One end of the forming platform 136 is placed on the forming column 134, and the other end is placed on the support column 120. That is, the forming platform 136 is set between the forming column 134 and the support column 120. Multiple concrete test molds 138 are arranged on the forming platform 136 along the length of the forming platform 136. The vibration mechanism 140 is positioned corresponding to the concrete mold 138 and is used to vibrate the concrete. The smoothing mechanism 150 is rotatably connected to the support column 120 and is located above the forming platform 136. The demolding mechanism 160 is positioned on the forming platform 136 and acts on the concrete mold 138 to assist in demolding. The control component 170 is positioned on the support column 120 and is electrically connected to the vibration mechanism 140, the smoothing mechanism 150, and the demolding mechanism 160.

[0015] Thus, through the aforementioned integrated and automated structural design, the discrete molding, vibration, smoothing, and demolding processes in concrete specimen production are integrated into a unified device. This structure uses a disc-shaped base 110 and a central supporting column 120 to form a stable load-bearing core. Multiple circumferentially distributed molding components 132 achieve efficient space utilization and parallel operation capabilities, providing a structural foundation for high-efficiency production. Each functional mechanism, such as the vibration mechanism 140, smoothing mechanism 150, and demolding mechanism 160, is laid out with the supporting column 120 as the spatial reference and is coordinated and controlled by the central control component 170, achieving fully automated operation from concrete compaction and surface leveling to non-destructive demolding. This device fundamentally changes the traditional operation mode that relies on manual experience. Through mechanical positioning and program control, it effectively ensures the standardization and normalization of specimen production, significantly improving production efficiency and the consistency of finished product quality.

[0016] Compared with existing technologies, the concrete test block forming and demolding device 100 provided in this application has the following advantages: Through innovative mechanical automation design, it integrates multiple key process steps such as material loading, vibration, leveling, and demolding in the concrete test block production process into an integrated device, achieving standardization and precise control of the test block forming process. This integrated system adopts a modular structure design, and through the coordinated operation of a precision transmission mechanism and an intelligent control system, it ensures the precise execution of each process parameter. In the material loading stage, it is equipped with an automatic metering and feeding device to ensure that the concrete mixture is uniformly loaded into the test mold, avoiding material segregation caused by traditional manual loading. The vibration mechanism 140 adopts frequency conversion control technology, allowing for precise adjustment of the vibration frequency and controllable amplitude, ensuring sufficient compaction of the concrete while preventing material segregation caused by over-vibration. The leveling mechanism 150 is equipped with a high-precision servo drive system, ensuring stable scraper speed and a flatness error of no more than 0.3 mm / m, completely solving the problem of uneven surface caused by manual leveling. The demolding mechanism 160 adopts an innovative design that combines pneumatic lifting with mechanical assistance, which greatly improves the demolding success rate and completely avoids the edge and corner damage caused by traditional manual demolding.

[0017] Specifically, current concrete specimen fabrication processes still predominantly employ a labor-intensive manual operation model, encompassing multiple key technological steps from raw material sampling, mold assembly, concrete vibration, surface smoothing, to final demolding. This traditional approach has significant technical limitations: in the vibration stage, due to complete reliance on operator experience and judgment, standardized control is often difficult to achieve. Specifically, insufficient vibration easily leads to air bubbles and voids within the specimen, with porosity reaching 3%–5%; while excessive vibration causes severe stratification between the cement paste and aggregate, with tests showing an increase in the thickness of the interface transition zone of approximately 40%, directly resulting in a 15%–20% reduction in the compressive strength of the specimen. In the smoothing process, manual scraping makes it difficult to ensure the flatness of the formed surface; measured data show that approximately 35% of the specimens have a flatness deviation exceeding 2 mm / m, and the verticality deviation of the pressure surface is generally greater than 15%, severely affecting the accuracy of the compressive strength test data. The technical problems during demolding are even more prominent. Statistics show that the breakage rate of test blocks due to manual demolding is as high as 18%, of which about 7% of the test blocks are scrapped directly due to chipped edges and corners. In addition, traditional processes also suffer from low work efficiency and high labor intensity. The average time for producing a single test block is 25 minutes, and the quality fluctuation coefficient exceeds 12%, far exceeding the standard limit of 5%. These technical defects not only increase the testing cost but also seriously affect the reliability of concrete quality assessment.

[0018] According to the existing technology, CN222079615U uses a screw-driven side plate separation demolding, but it lacks molding function and does not solve the problem of vibration uniformity. CN221456277U integrates a vibration module, but demolding relies on manual flipping, and the test block is easily damaged during the transfer process.

[0019] To address the shortcomings of existing technologies, this application aims to provide a concrete specimen molding and demolding device 100. Through the coordinated operation of molding, vibration, smoothing, demolding, and control mechanisms, the entire process from positioning to demolding is automated and standardized. In scenarios requiring precise positioning and efficient molding, the molding mechanism 130 adopts a radial layout with a central support column 120 as its core, and multiple molding platforms 136 are evenly distributed circumferentially, achieving efficient space utilization and parallel operation. The molding platforms 136 and the concrete specimen mold 138 are tightly connected via dovetail positioning grooves and a quick-clamping system, ensuring the absolute stability of the concrete specimen mold 138 during vibration and fundamentally solving the positioning deviation problem. In scenarios requiring automatic vibration and compaction control, the vibration mechanism 140, driven by preset parameters from the control component 170, precisely controls the vibration devices 142 distributed on both sides of the concrete specimen mold 138, achieving standardization of vibration time and intensity, effectively ensuring uniform compaction of the concrete, and avoiding the uncertainties of manual operation. In the intelligent smoothing and surface leveling scenario, the smoothing mechanism 150 drives the scraper 154 suspended on the central support column 120 to rotate via the rotary motor 156. Its multi-degree-of-freedom design allows for adaptive leveling, performing 360° smoothing of the top surface of all circumferential concrete molds 138 without dead angles, ensuring that the surface of the test block meets the flatness requirements of the specifications. In the non-destructive demolding and rapid circulation scenario, the demolding mechanism 160 adopts a pneumatic principle, applying pressure evenly to the concrete molds 138 through the demolding air pump 162 and connecting hose 166, achieving stable ejection of the test block, abandoning the traditional violent hammering method, and reducing the demolding damage rate to an extremely low level. The entire process is completed collaboratively by various mechanisms under the unified command of the control component 170, realizing a fundamental shift in concrete test block production from "experience-based" to "standardized," solving the problems of difficulty in controlling the number of vibrations of concrete test blocks, insufficient surface smoothing accuracy, and non-standard demolding in existing technologies.

[0020] In some embodiments, optionally, such as Figure 1 and Figure 2 As shown, the vibration mechanism 140 includes: a vibration device 142, which is disposed on both sides of the concrete mold 138; and a vibration motor 144, which is disposed in the receiving space at the bottom of the support column 120 and connected to the vibration device 142 for driving the vibration device 142.

[0021] Specifically, such as Figure 1 and Figure 2As shown, the vibratory motor 144 is connected to the vibratory devices 142 located on both sides of the concrete mold 138 via a transmission mechanism, forming a symmetrically arranged vibratory system. This design, through simultaneous vibration from both sides, ensures that the vibration force is evenly transmitted to the mixture within the concrete mold 138, effectively avoiding uneven compaction or mold displacement that may result from unilateral vibration. The high-frequency, micro-amplitude vibration generated by the motor breaks down the surface tension of air bubbles within the concrete, allowing them to escape smoothly. Simultaneously, it promotes particle rearrangement and slurry flow, thereby achieving a compaction effect and improving the density, uniformity, and molding efficiency of the concrete.

[0022] In some embodiments, optionally, such as Figure 1 and Figure 2 As shown, the smoothing mechanism 150 includes: a rotating rod 152, one end of which is rotatably connected to the support column 120, and the other end extending in a direction away from the support column 120; a scraper 154, which is disposed below the rotating rod 152; and a rotary motor 156, which is disposed in the receiving space at the bottom of the support column 120 and connected to the rotating rod 152, for driving the rotating rod 152 to rotate around the support column 120.

[0023] Specifically, such as Figure 2 As shown, the rotating rod 152, driven by the rotary motor 156, moves in a circular motion around the supporting column 120, causing the scraper 154 below it to pass sequentially over the concrete molds 138 above each forming platform 136. This design achieves continuous operation of multiple circumferentially distributed molds by a single smoothing mechanism 150 through rotational motion, using the scraper 154 to scrape and level the concrete surface inside the mold during rotation. The extension length of the rotating rod 152 can be adjusted according to the radius of the mold arrangement to ensure that the scraper 154 can effectively cover all work positions. This structure not only significantly improves the efficiency of smoothing operations but also ensures the consistency of the surface flatness of each test block through mechanized uniform motion, effectively solving the problems of low efficiency and unstable quality in manual smoothing.

[0024] In some embodiments, optionally, such as Figure 2 and Figure 3 As shown, the demolding mechanism 160 includes: a demolding air pump 162, which is mounted on the base 110; a snap-fit ​​device 164, which is mounted on the forming platform 136 for fixing the concrete test mold 138; and a connecting hose 166 for connecting the demolding air pump 162 and the concrete test mold 138.

[0025] Specifically, such as Figure 2 and Figure 3As shown, the demolding air pump 162 is connected to the air duct interface pre-reserved at the bottom of the concrete mold 138 via a connecting hose 166, forming a pneumatic demolding system. Using compressed air as a power source, when the demolding process is initiated, the high-pressure gas generated by the demolding air pump 162 is injected into the bottom of the mold through the connecting hose 166, forming a uniform air pressure peeling force between the specimen and the inner wall of the mold, thereby achieving smooth ejection of the specimen. The locking device 164, installed on the molding platform 136, provides reliable rigid fixation for the mold during the molding and vibration stages, preventing displacement. This pneumatic demolding method completely replaces traditional manual hammering, effectively avoiding mechanical damage to the edges and corners of the specimen during the demolding process through non-contact force application, reducing the specimen breakage rate, and ensuring the integrity of the finished product.

[0026] In some embodiments, optionally, such as Figure 1 and Figure 2 As shown, the latching device 164 is a symmetrical mechanical clamp with a wedge-shaped surface at its front end.

[0027] Specifically, such as Figure 1 and Figure 2 As shown, the left and right clamping arms of the clamping device 164 open and close synchronously through a linkage mechanism. When the wedge-shaped surface at the front end contacts the top edge of the concrete mold 138, it can automatically guide and tighten along the inclined plane. This design is based on the principle of inclined plane self-locking. When the clamping arm presses down, the wedge-shaped surface generates a clamping force perpendicular to the contact surface, firmly pressing the mold against the forming platform 136. This achieves both the convenience of quick clamping and release and adaptive compensation for the thickness tolerance of molds of different specifications, ensuring a stable and consistent clamping force for molds of various specifications from 100mm to 150mm. This symmetrical clamping structure effectively avoids mold warping or displacement caused by unilateral force, providing reliable positioning assurance for vibration operation.

[0028] In some embodiments, optionally, such as Figure 1 and Figure 2 As shown, the control assembly 170 includes switches for independently controlling the smoothing mechanism 150, the demolding mechanism 160, and the vibrating mechanism 140.

[0029] Specifically, such as Figure 1 As shown, the control component 170 adopts an integrated operation design, mapping the control functions of the smoothing mechanism 150, the demolding mechanism 160, and the vibrating mechanism 140 to independent physical or touch switches. Precise control of each actuator is achieved through independent control loops, allowing the operator to start or stop any mechanism individually as needed without affecting the operation of other units. This maintains the flexibility of process selection while avoiding motion interference between mechanisms.

[0030] In some embodiments, optionally, such as Figure 2As shown, the concrete block forming and demolding device 100 also includes an actuator 180, which is housed in the receiving space at the bottom of the support column 120 and is used to provide driving force for other power components in the concrete block forming and demolding device 100.

[0031] Specifically, such as Figure 2 As shown, the actuator 180 serves as the central drive unit, transmitting power to the lifting mechanism of the forming platform 136 and other auxiliary actuators via a transmission system located inside the support column 120. This centralized drive scheme significantly simplifies the overall power system structure, reduces the complexity and cost of multi-motor configurations, and ensures coordinated movement of all actuators through unified power distribution, thereby improving the reliability of equipment operation.

[0032] In some embodiments, optionally, such as Figure 1 As shown, the upper surface of the molding platform 136 has multiple sets of positioning grooves; the bottom of the concrete mold 138 is fixedly connected with a dovetail-shaped positioning block that matches the positioning groove.

[0033] Specifically, the positioning groove and the dovetail positioning block adopt an interference fit design. When the dovetail block at the bottom of the mold is embedded in the platform positioning groove, a three-dimensional mechanical constraint is formed. Through the inclined guide and self-locking characteristics of the dovetail structure, the longitudinal and lateral displacement of the mold is effectively restricted on the horizontal plane, and the lifting of the mold is prevented in the vertical direction. This achieves rapid and accurate positioning and reliable fixing of the mold. During operation, the mold only needs to be pushed in along the positioning groove to complete the precise alignment without additional adjustments. This positioning method not only ensures the straightness of the arrangement of multiple sets of molds, but also provides a stable foundation for subsequent vibration operations. It effectively eliminates the defects of traditional bolt fixing methods, such as positioning deviation and cumbersome operation, and significantly improves the accuracy and efficiency of mold installation.

[0034] In some embodiments, the control component 170 may optionally preset the vibration parameters of the vibration mechanism 140.

[0035] Specifically, the operating status of the vibratory motor 144 is precisely controlled through an electrical control system. Operators only need to pre-set the optimal vibration parameters according to the concrete mix proportions and mold specifications; after startup, the device automatically completes the vibration operation according to the set program. This pre-set control method effectively eliminates under-vibration or over-vibration caused by human factors, ensuring the consistency of vibration processes across different batches of test blocks and improving the uniformity and stability of the concrete test block density.

[0036] In some embodiments, optionally, such as Figure 1 As shown, an electronic level 190 for real-time monitoring of the levelness of the molding platform 136 is fixedly connected to the molding platform 136.

[0037] Specifically, such as Figure 1 As shown, the electronic level 190 is fixedly installed on the reference plane of the molding platform 136, and uses a built-in high-precision sensor to detect the tilt angle of the platform in the X and Y axes in real time. Based on the principle of liquid balance or electronic sensing technology, this device can convert the level status of the platform into a visual digital signal or indicator light signal, realizing real-time monitoring and quantitative display of the levelness of the molding platform 136. This ensures a unified level reference for multiple molding platforms 136, fundamentally avoiding installation deviations in the test mold and differences in the molding quality of concrete test blocks caused by platform tilt, and providing a guarantee for the standardized molding of test blocks.

[0038] In specific applications, such as Figure 1 , Figure 2 and Figure 3 As shown, this application provides a concrete specimen molding and demolding device 100 for preparing standard concrete specimens such as cubes or prisms. Through integrated structural design and automated control, it solves problems such as "large mold positioning deviation," "inadequate concrete compaction," "poor surface smoothness," and "difficult demolding" that exist in traditional manual specimen preparation. The following detailed description, in conjunction with the accompanying drawings, illustrates the structure of each component, its connection relationships, and specific implementation steps: The base 110 is the basic load-bearing structure. The forming column 134 is used to support the forming platform 136 and adjust its height. The forming platform 136 is used to fix the concrete test mold 138 and provide a horizontal operating benchmark. The vibration mechanism 140 and the smoothing mechanism 150 are used for the compaction and surface leveling of concrete, respectively. The control component 170 is the core control unit. The motor component provides driving force for the actuator. The buckling device 164 is used for the rigid fixation of the test mold and the platform. The connecting hose 166 is used to connect the demolding air pump 162 to the concrete test mold 138 to assist in demolding.

[0039] The base 110 is a steel plate structure, made of steel, and its surface is machined to ensure levelness. Adjustable anchor bolts are located at the four corners of the base 110; rotating these bolts allows for fine-tuning of the base's level to adapt to different ground conditions. The forming column 134 is fixedly connected to the base 110 and vertically fixed to it. The forming platform 136 is located at the top of the column and serves as the working bearing surface. The forming column 134 is a vertically arranged square steel tube with a rectangular slot along its axial direction in the center for the connecting bolts of the forming platform 136 to pass through, enabling height adjustment of the forming platform 136. A horizontal limit plate is fixedly connected to the top of the forming column 134 to prevent excessive upward movement of the forming platform 136. A rack is integrated on one side of the forming column 134, meshing with the drive gear of the forming platform 136. The vertical lifting of the platform is achieved by driving the motor 180.

[0040] The molding platform 136 is a rectangular steel plate with multiple positioning grooves on its upper surface for fixing the bottom edge of the concrete mold 138. An electronic level 190 is fixedly connected to one side of the molding platform 136 for real-time monitoring of its levelness. The lower surface of the molding platform 136 is connected to the rectangular slots of the molding column 134 via four sets of bolts. By adjusting the position of the bolts in the slots, the height of the molding platform 136 can be precisely adjusted with an accuracy of ±1mm. Eight sets of quick-clamping devices are evenly arranged circumferentially on the working end face of the molding platform 136. These clamps employ a high-efficiency linkage mechanism design, enabling them to form a quick-locking connection with the snap-fit ​​device 164. The main function of this clamping system is to firmly fix the spatial position of the concrete mold 138 during the vibration molding process. Through multi-point distributed clamping, it effectively suppresses horizontal displacement and vertical jump that may occur during vibration operation.

[0041] The concrete mold 138 is a standard cubic structure made of aluminum alloy or stainless steel with a polished inner wall. An elastic buffer pad is provided at the bottom of the mold 138 to ensure sufficient clamping force while preventing damage to the mold surface. The clamps of the concrete mold 138 utilize a lever-based force-multiplying principle; simple lever operation allows for quick clamping and release. Dovetail-shaped positioning blocks, matching the positioning grooves of the forming platform 136, are fixedly connected to the four corners of the bottom of the mold 138. By embedding these positioning blocks into the positioning grooves, the concrete mold 138 is quickly positioned on the forming platform 136. An annular groove is provided on the top edge of the concrete mold 138 for embedding the fixing end of the snap-fit ​​device 164, ensuring a rigid connection between the concrete mold 138 and the forming platform 136. This connection accommodates different mold sizes and maintains stable positioning under various vibration conditions.

[0042] The vibration mechanism 140 adopts a fully automatic control design and is rigidly connected to the forming platform 136 to form a stable vibration transmission system. The vibration process requires no manual intervention; one-button operation is achieved through preset parameters via the control component 170. The smoothing mechanism 150 employs a multi-degree-of-freedom adjustment mechanism, enabling 360° smoothing without blind spots. It can precisely calibrate the parallelism between the smoothing disc and the top surface of the mold, compensate for mold installation deviations, and ensure uniform distribution of smoothing pressure. The adjustable rotation radius design adapts to different mold sizes, such as 100mm or 150mm cube molds, enabling customized smoothing operations and ensuring the concrete sample surface meets the required flatness standards. The control component 170 uses a three-button intelligent operation, achieving one-button control of the core process of concrete specimen forming. This device simplifies the complex vibration, smoothing, and demolding processes into three independent function buttons, maintaining both ease of operation and precise execution of process parameters. The clamping device 164 is a symmetrical mechanical clamp fixed to the front end of the left and right clamping arms. When it contacts the inner surface of the annular groove at the top of the concrete mold 138, it adapts to molds of different thicknesses through its wedge-shaped surface. The connecting hose 166 is a high-pressure resistant rubber hose, with one end connected to the concrete mold 138 and the other end connected to the demolding air pump 162.

[0043] The specific operating steps of the concrete test block forming and demolding device 100 are as follows: Positioning and fixing the concrete test mold 138: Align the positioning block at the bottom of the concrete test mold 138 with the positioning groove of the forming platform 136. Push the concrete test mold 138 to the limit end along the length of the forming platform 136. Initial fixing of the concrete test mold 138 is achieved through the interference fit between the positioning groove and the positioning block. Subsequently, the concrete test mold 138 is further tightened by the quick clamps on the side of the forming platform 136 to ensure no displacement of the concrete test mold 138 during vibration. Concrete filling: Prepare concrete according to the design mix ratio. Use a funnel or scoop to evenly fill the concrete into the concrete test mold 138, avoiding concrete segregation such as coarse aggregate accumulation during the filling process. After the concrete is compacted by vibration, press the control component 170 to trigger the vibration motor of the vibration mechanism 140. Multi-point vibration is used, with each point vibrating for 15-20 seconds until the concrete surface shows a layer of slurry and no obvious air bubbles emerge. The distance between adjacent vibration points should not exceed 20mm to ensure complete compaction of the concrete within the concrete mold 138. For surface smoothing, after vibration, turn off the vibration mechanism 140 and press the control component 170 to trigger the smoothing mechanism 150, starting the drive motor. The scraper 154 rolls uniformly along the surface of the concrete mold 138 at a speed of 20cm / min to complete surface smoothing. If there are uneven areas, manual pressing can be used to assist in smoothing. For demolding, after the concrete specimen has initially set, press the control component 170 to trigger the interface of the connecting hose 166, turning on the demolding air pump 162. The pressure difference is used to separate the concrete mold 138 from the forming platform 136, allowing the concrete mold 138 to be removed from the forming platform 136. Afterwards, the residual concrete on the surface of the molding platform 136 is cleaned and the buckling device 164 is reset, and the next round of specimen production can begin.

[0044] In the description of this application, the term "multiple" refers to two or more. Unless otherwise expressly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0045] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A concrete test block molding and demolding device, characterized in that, include: The base is a disc-shaped structure; A support column is fixedly installed at the center of the base; The molding mechanism includes multiple molding components evenly distributed along the circumference of the supporting column. Each molding component includes a molding column, a molding platform, and a concrete mold. The molding column is disposed on the base, the molding platform is erected between the molding column and the supporting column, and the multiple concrete molds are arranged on the molding platform along the length direction of the molding platform. A vibration mechanism, corresponding to the concrete test mold, is used to vibrate the concrete; The smoothing mechanism is rotatably connected to the support column and located above the forming platform; A demolding mechanism is provided on the forming platform and acts on the concrete mold to assist in demolding; The control component is mounted on the support column and is electrically connected to the vibration mechanism, the smoothing mechanism and the demolding mechanism.

2. The concrete test block molding and demolding device according to claim 1, characterized in that, The vibrating mechanism includes: A vibrating device is provided on both sides of the concrete mold. A vibratory motor is installed in the receiving space at the bottom of the supporting column and connected to the vibratory device to drive the vibratory device.

3. The concrete test block molding and demolding device according to claim 1, characterized in that, The smoothing mechanism includes: A rotating rod, one end of which is rotatably connected to the support column, and the other end extends in a direction away from the support column; A scraper is disposed below the rotating rod; A rotary motor is installed in the receiving space at the bottom of the support column and connected to the rotating rod, for driving the rotating rod to rotate around the support column.

4. The concrete test block molding and demolding device according to claim 1, characterized in that, The demolding mechanism includes: A demolding air pump is mounted on the base; A snap-fit ​​device is provided on the molding platform to fix the concrete test mold; Connect the hose to the demolding air pump and the concrete mold.

5. The concrete test block molding and demolding device according to claim 4, characterized in that, The latching device is a symmetrical mechanical clamp with a wedge-shaped surface at its front end.

6. The concrete test block molding and demolding device according to claim 1, characterized in that, The control components include switches for independently controlling the smoothing mechanism, the demolding mechanism, and the vibrating mechanism.

7. The concrete test block molding and demolding device according to claim 1, characterized in that, The concrete test block molding and demolding device also includes: An actuator motor, housed within a receiving space at the bottom of the support column, is used to provide driving force for other power components in the concrete block forming and demolding device.

8. The concrete test block molding and demolding device according to claim 1, characterized in that, The upper surface of the forming platform has multiple sets of positioning grooves; The bottom of the concrete mold is fixedly connected to a dovetail-shaped positioning block that matches the positioning groove.

9. The concrete test block molding and demolding device according to claim 2, characterized in that, The control component can preset the vibration parameters of the vibration mechanism.

10. The concrete specimen molding and demolding device according to any one of claims 1 to 8, characterized in that, An electronic level is fixedly connected to the molding platform for real-time monitoring of the platform's levelness.

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