Hard concrete test piece forming device

By using a servo motor to drive a cam to drive a transmission bar to achieve the reciprocating motion of the vibrating plate, and combining it with a shock absorption device and a mold mechanism, the problem of complex structure and high cost of existing dry-hard concrete specimen molding devices is solved, thereby improving work efficiency and molding quality.

CN224116368UActive Publication Date: 2026-04-14CHINA WATER CONSERVANCY & HYDROPOWER NO 9 ENG BUREAU CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing dry-hard concrete specimen molding devices are complex in structure and costly, and the mold installation and replacement are inconvenient, resulting in low molding efficiency and difficulty in guaranteeing quality.

Method used

A servo motor drives a cam to drive a transmission bar, realizing the reciprocating motion of the vibrating plate. Combined with a shock absorption device and mold mechanism, it ensures uniform concrete molding. The mold is quickly installed through positioning holes and positioning columns, and the telescopic rod is used to achieve tight positioning and demolding of the mold plate.

Benefits of technology

It improved the working efficiency and quality of the molding device, simplified the installation and disassembly process of the mold, and ensured the uniformity and stability of the concrete specimens.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a hard concrete test piece forming device which comprises a machine body, a sliding groove is formed in the middle of the top end of the machine body, a mounting plate is fixedly connected to the left side of the machine body, a servo motor is fixedly connected to the top of the mounting plate, and a cam is fixedly connected to the output end of the servo motor. A transmission strip is rotationally connected to the edge of the top end of the cam, a vibration plate is rotationally connected to the right side of the bottom end of the transmission strip, the bottom end of the vibration plate is slidably connected with the inner wall of the sliding groove, and a side plate is fixedly connected to the right side of the machine body. The vibration plate slides left and right in the sliding groove in the machine body, the servo motor drives the cam to rotate, the transmission strip moves and is connected with the vibration plate, the vibration plate achieves reciprocating vibration and promotes concrete filling, the damping columns are installed on the side plates, the damping springs are arranged on the outer walls of the damping columns and provide buffering for the vibration plate, and the concrete forming effect is guaranteed through the design. The structure is simple and stable, and working requirements are met.
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Description

Technical Field

[0001] This utility model relates to the field of concrete technology, specifically to a dry-hard concrete specimen molding device. Background Technology

[0002] Dry-hard concrete, with a low water-cement ratio, is widely used in road, bridge, and tunnel engineering. Due to its good compressive strength and durability, its use is becoming increasingly common. To ensure construction quality, specimen molding has become an important testing method for evaluating concrete performance. With the development of modern construction technology and materials science, the molding equipment for dry-hard concrete specimens is gradually developing towards automation and intelligence. Such equipment can ensure the uniformity and repeatability of specimens, improving the testing efficiency and accuracy of engineering materials. This technological development has also promoted the optimization and upgrading of concrete mix design and construction process innovation, contributing to the rapid development of urban infrastructure construction.

[0003] Ordinary molding devices achieve the desired effect by manually tamping and filling the mold with simple mechanical vibration. Existing dry-hard concrete specimen molding devices use automatic mechanical compaction, which plays an important role in improving efficiency and accuracy, but still has some drawbacks. Due to the complex structure of the equipment, the cost is relatively high, increasing the economic burden on small construction companies. The molds need to be maintained and calibrated regularly, otherwise molding errors will occur. The disassembly and installation of the molds are difficult, affecting work efficiency and making it difficult to guarantee the quality of molding. During the molding process, uneven compaction and internal voids may occur, making it difficult to meet the usage requirements. Utility Model Content

[0004] The purpose of this invention is to provide a dry-hard concrete specimen molding device to solve the problems mentioned in the background art, such as complex structure, high cost, inconvenient mold installation and replacement, reduced work efficiency, uneven compaction, and poor molding effect.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a dry-hard concrete specimen molding device, comprising a body, a groove formed at the top center of the body, an mounting plate fixedly connected to the left side of the body, a servo motor fixedly connected to the top of the mounting plate, a cam fixedly connected to the output end of the servo motor, a transmission bar rotatably connected to the top edge of the cam, a vibrating plate rotatably connected to the bottom right side of the transmission bar, the bottom end of the vibrating plate slidingly connected to the inner wall of the groove, a side plate fixedly connected to the right side of the body, a shock-absorbing column fixedly connected to the bottom left side of the side plate, a shock-absorbing spring provided on the outer wall of the shock-absorbing column, and a mold mechanism provided on the top of the vibrating plate, the mold mechanism being used for quick installation, replacement of molds, and demolding.

[0006] By adopting the above technical solutions, stable operation of the equipment was achieved, and work efficiency and molding quality were improved.

[0007] As a further description of the above technical solution:

[0008] The mold mechanism includes a positioning hole, the bottom of which is located on the left and right sides of the top of the vibrating plate. A positioning post is slidably connected to the inner wall of the positioning hole. A reinforcing frame is fixedly connected to the middle of the outer wall of the positioning post. A mold plate is slidably connected to the inner wall of the reinforcing frame. A pressure strip is fixedly connected to the top of the positioning post. Multiple telescopic rods are fixedly connected to the front and rear sides of the top of the vibrating plate. A pressure strip is fixedly connected to the top of each telescopic rod.

[0009] As a further description of the above technical solution:

[0010] Multiple support frames are fixedly connected to the left and right sides of the bottom of the machine body, and support feet are fixedly connected to the bottom of the support frames.

[0011] As a further description of the above technical solution:

[0012] An emergency stop button is installed on the front left side of the machine body. The emergency stop button is a circular block.

[0013] As a further description of the above technical solution:

[0014] A controller is installed in the middle of the front side of the machine body, and the controller is electrically connected to the servo motor and the telescopic rod.

[0015] As a further description of the above technical solution:

[0016] The right side of each side panel has multiple decorative grooves, which are arranged at equal intervals.

[0017] As a further description of the above technical solution:

[0018] A support plate is fixedly connected to the top left side of the side plate, and an auxiliary rod is slidably connected to the middle bottom of the support plate.

[0019] As a further description of the above technical solution:

[0020] A hydraulic rod is fixedly connected to the bottom left side of the support plate, and a pressing plate is fixedly connected to the bottom end of the hydraulic rod.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. The vibrating plate can slide left and right through the sliding groove on the machine body. The servo motor drives the cam to rotate, which in turn drives the transmission bar to move. The transmission bar is connected to the vibrating plate, so that the vibrating plate can reciprocate and promote concrete filling. The side plate is equipped with shock-absorbing columns, and its outer wall has shock-absorbing springs to provide cushioning for the vibrating plate. This design ensures the concrete forming effect, and the structure is simple and stable, meeting the work requirements.

[0023] 2. The positioning holes and positioning posts enable quick positioning and installation of the mold plate. The reinforcing frame on the outer wall of the positioning post cooperates with the pressure strip one. Through the retraction of the telescopic rod, the pressure strip two moves downward. The reinforcing frame and the pressure strip one work together to ensure that the mold plate is tightly installed. This structure simplifies the mold replacement process, improves demolding efficiency, and meets the usage requirements. Attached Figure Description

[0024] Figure 1 This is a perspective view of the front side of the body of this utility model;

[0025] Figure 2 This is an exploded view of the servo motor structure of this utility model;

[0026] Figure 3 This is a partial view of the mold plate structure of this utility model;

[0027] Figure 4 This is a diagram illustrating the structure of the vibrating plate of this utility model;

[0028] Figure 5 This is a schematic diagram of the slide groove structure of this utility model.

[0029] In the diagram: 1. Machine body; 2. Mold mechanism; 201. Positioning hole; 202. Mold plate; 203. Positioning column; 204. Reinforcing frame; 205. Pressure strip one; 206. Telescopic rod; 207. Pressure strip two; 3. Slide groove; 4. Mounting plate; 5. Servo motor; 6. Cam; 7. Transmission bar; 8. Vibration plate; 9. Side plate; 10. Shock-absorbing column; 11. Shock-absorbing spring; 12. Support frame; 13. Support foot; 14. Emergency stop button; 15. Controller; 16. Decorative groove; 17. Support plate; 18. Auxiliary rod; 19. Hydraulic rod; 20. Pressing plate. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 5 An embodiment of this utility model provides a dry-hard concrete specimen molding device, including a body 1, a groove 3 at the top center of the body 1, an installation plate 4 fixedly connected to the left side of the body 1, a servo motor 5 fixedly connected to the top of the installation plate 4, a cam 6 fixedly connected to the output end of the servo motor 5, a transmission bar 7 rotatably connected to the top edge of the cam 6, a vibrating plate 8 rotatably connected to the bottom right side of the transmission bar 7, the bottom end of the vibrating plate 8 slidably connected to the inner wall of the groove 3, a side plate 9 fixedly connected to the right side of the body 1, a shock-absorbing column 10 fixedly connected to the bottom left side of the side plate 9, a shock-absorbing spring 11 provided on the outer wall of the shock-absorbing column 10, and a mold mechanism 2 provided on the top of the vibrating plate 8. The mold mechanism 2 is used for quick installation, replacement of molds and demolding.

[0032] Specifically, the main body 1 is the main connecting part of the structure. There is a slide groove 3 in the upper center of the main body 1 for limiting movement. A servo motor 5 is fixedly installed on the upper part of the mounting plate 4 to provide the power required for the structure. The output shaft of the servo motor 5 is connected to a cam 6 and cooperates with the transmission bar 7. The bottom right side of the transmission bar 7 is connected to the vibration plate 8 by rotation to ensure the stability of vibration. The bottom of the vibration plate 8 can slide and contact the inner wall of the slide groove 3 to ensure the direction of movement. The side plate 9 provides convenience for the connection of other structures. A shock-absorbing column 10 is installed on the side plate 9. A shock-absorbing spring 11 is set on the outer wall of the shock-absorbing column 10 to provide shock absorption. A mold mechanism 2 is set on the upper part of the vibration plate 8. The mold mechanism 2 is designed to realize the quick installation, replacement and demolding of the mold, which greatly improves production efficiency and operation convenience.

[0033] Please see the appendix Figure 1 Appendix Figure 3 and attached Figure 4 The mold mechanism 2 includes a positioning hole 201. The bottom end of the positioning hole 201 is located on the left and right sides of the top of the vibrating plate 8. A positioning post 203 is slidably connected to the inner wall of the positioning hole 201. A reinforcing frame 204 is fixedly connected to the middle of the outer wall of the positioning post 203. A mold plate 202 is slidably connected to the inner wall of the reinforcing frame 204. A pressure strip 205 is fixedly connected to the top of the positioning post 203. Multiple telescopic rods 206 are fixedly connected to the front and rear sides of the top of the vibrating plate 8. A pressure strip 207 is fixedly connected to the top of the telescopic rod 206.

[0034] Specifically, positioning holes 201 are located on the top left and right sides of the vibrating plate 8, ensuring the stability and accuracy of the entire mechanism. The positioning holes 201 and positioning posts 203 are smoothly connected, which not only ensures the accuracy of positioning but also provides the necessary flexibility. The positioning posts 203 are connected to a sturdy reinforcing frame 204. The presence of the reinforcing frame 204 further enhances the structural strength and durability of the entire mold mechanism 2. The mold plate 202 slides on the inner wall of the reinforcing frame 204 to adapt to different processing requirements. Pressure strip 1 205 ensures that the material can be stably fixed and pressed during the mold operation. These telescopic rods 206 can be extended and adjusted according to actual processing requirements to provide the required power. Each telescopic rod 206 is fixedly connected to a pressure strip 207 at its top. These pressure strips 207 can provide uniform pressure during mold operation, ensuring the flatness and accuracy of the material during processing.

[0035] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 5 Multiple support frames 12 are fixedly connected to the bottom left and right sides of the body 1. Support feet 13 are fixedly connected to the bottom of the support frames 12. An emergency stop button 14 is installed on the front left side of the body 1. The emergency stop button 14 is a circular block. A controller 15 is installed in the front middle of the body 1. The controller 15 is electrically connected to the servo motor 5 and the telescopic rod 206.

[0036] Specifically, the bottom of the body 1 is connected to multiple support frames 12, and the bottom of these support frames 12 is connected to support feet 13 to ensure the stability of the entire structure. An emergency stop button 14 in the shape of a circular block is installed on the front left side of the body 1 so that the operator can quickly identify and use it. A controller 15 is installed in the front middle of the body 1. It is electrically connected to the servo motor 5 and the telescopic rod 206 to ensure the coordinated operation of the entire structure.

[0037] Please see the appendix Figure 1 Multiple decorative grooves 16 are provided on the right side of the side panel 9, and the multiple decorative grooves 16 are arranged at equal intervals. A support plate 17 is fixedly connected to the top left side of the side panel 9. An auxiliary rod 18 is slidably connected to the middle bottom end of the support plate 17. A hydraulic rod 19 is fixedly connected to the left bottom end of the support plate 17. A pressing plate 20 is fixedly connected to the bottom end of the hydraulic rod 19.

[0038] Specifically, on the right side of the side panel 9, there are multiple decorative grooves 16, which are evenly and equidistantly arranged to ensure visual harmony and aesthetics. On the top left side of the side panel 9, a support plate 17 is firmly connected to it. This support plate 17 not only provides structural support but also enhances the overall stability. An auxiliary rod 18 is connected to the middle of the bottom end of the support plate 17. This auxiliary rod 18 makes the entire structure more flexible and convenient to use. A hydraulic rod 19 is also fixedly connected to the left bottom end of the support plate 17. The presence of the hydraulic rod 19 allows for precise control and adjustment of the entire device. The bottom end of the hydraulic rod 19 is fixedly connected to a pressure plate 20. This pressure plate 20 is a key component in the entire device for applying pressure, ensuring that the required force can be effectively applied during relevant operations.

[0039] Working principle: A groove 3 is opened on the machine body 1, allowing the vibrating plate 8 to slide on the inner wall of the groove 3. When the servo motor 5 on the mounting plate 4 runs, it drives the cam 6 at its output end to rotate, thereby driving the transmission bar 7 to move. Since the transmission bar 7 is rotatably connected to the vibrating plate 8, and the vibrating plate 8 can only move left and right due to the influence of the groove 3, the vibrating plate 8 vibrates by reciprocating left and right, so that the concrete is filled better. A shock-absorbing column 10 is connected to the side plate 9. The shock-absorbing column 10 is slidably connected to the vibrating plate 8, and a shock-absorbing spring 11 is set on the outer wall of the shock-absorbing column 10, so that the vibrating plate 8 is buffered under the influence of the shock-absorbing spring 11. This structure can vibrate the concrete that needs to be shaped, ensuring the shaping effect of the concrete. Moreover, the structure is simple, and it also provides buffering, improving the stability during operation and meeting the work requirements.

[0040] The positioning hole 201 allows the positioning post 203 to be quickly positioned and inserted. A reinforcing frame 204 is provided on the outer wall of the positioning post 203, allowing the pressure strip 205 to slide in and be fitted together, thus quickly positioning and installing the mold plate 202. The pressure strip 205 is fixedly connected to the top of the positioning post 203. After positioning, the telescopic rod 206 is activated and retracted, causing the pressure strip 207 at the top of the telescopic rod 206 to move downwards, pressing the reinforcing frame 204 downwards, which in turn causes the pressure strip 205 to move downwards, further pressing the top of the mold plate 202, ensuring a tight mold installation. This structure, with its mutual pressing and quick positioning, facilitates mold replacement and disassembly, improves demolding efficiency, and meets usage requirements.

Claims

1. A dry-hard concrete specimen molding device, comprising a body (1), characterized in that: The top center of the machine body (1) is provided with a slide groove (3). The left side of the machine body (1) is fixedly connected to an installation plate (4). The top of the installation plate (4) is fixedly connected to a servo motor (5). The output end of the servo motor (5) is fixedly connected to a cam (6). The top edge of the cam (6) is rotatably connected to a transmission bar (7). The bottom right side of the transmission bar (7) is rotatably connected to a vibration plate (8). The bottom end of the vibration plate (8) is slidably connected to the inner wall of the slide groove (3). The right side of the machine body (1) is fixedly connected to a side plate (9). The bottom left side of the side plate (9) is fixedly connected to a shock-absorbing column (10). The outer wall of the shock-absorbing column (10) is provided with a shock-absorbing spring (11). The top of the vibration plate (8) is provided with a mold mechanism (2). The mold mechanism (2) is used for quick installation, replacement of molds and demolding.

2. The dry-hard concrete specimen molding device according to claim 1, characterized in that: The mold mechanism (2) includes a positioning hole (201). The bottom end of the positioning hole (201) is located on the left and right sides of the top of the vibrating plate (8). A positioning column (203) is slidably connected to the inner wall of the positioning hole (201). A reinforcing frame (204) is fixedly connected to the middle of the outer wall of the positioning column (203). A mold plate (202) is slidably connected to the inner wall of the reinforcing frame (204). A pressure strip (205) is fixedly connected to the top of the positioning column (203). Multiple telescopic rods (206) are fixedly connected to the front and rear sides of the top of the vibrating plate (8). A pressure strip (207) is fixedly connected to the top of the telescopic rod (206).

3. The dry-hard concrete specimen molding device according to claim 1, characterized in that: Multiple support frames (12) are fixedly connected to the bottom left and right sides of the body (1), and support feet (13) are fixedly connected to the bottom of the support frame (12).

4. The dry-hard concrete specimen molding device according to claim 1, characterized in that: An emergency stop button (14) is installed on the front left side of the body (1). The emergency stop button (14) is a circular block.

5. The dry-hard concrete specimen molding device according to claim 2, characterized in that: A controller (15) is installed in the middle of the front side of the body (1), and the controller (15) is electrically connected to the servo motor (5) and the telescopic rod (206).

6. The dry-hard concrete specimen molding device according to claim 1, characterized in that: Multiple decorative grooves (16) are provided on the right side of each side panel (9), and the multiple decorative grooves (16) are arranged at equal intervals.

7. The dry-hard concrete specimen molding device according to claim 1, characterized in that: A support plate (17) is fixedly connected to the top left side of the side plate (9), and an auxiliary rod (18) is slidably connected to the middle bottom of the support plate (17).

8. The dry-hard concrete specimen molding device according to claim 7, characterized in that: A hydraulic rod (19) is fixedly connected to the bottom left side of the support plate (17), and a pressing plate (20) is fixedly connected to the bottom end of the hydraulic rod (19).