Automatic sample injection device for loading sample in single combustion test

Abstract

The utility model discloses an automatic sample introduction device for loading a sample in a single combustion test, which comprises a sample introduction frame movably arranged at a combustion chamber floor, a slide rail assembly is arranged between the sample introduction frame and the combustion chamber floor, and the sample introduction frame moves back and forth along the slide rail assembly to realize automatic sample introduction of the sample in a combustion chamber. The automatic sample injection device for loading the sample in the single combustion test has the characteristics of simple structure, convenience in operation and capability of reducing the labor intensity of personnel.

Description

Technical Field

[0001] This utility model relates to the technical field of fire resistance testing equipment for building materials, specifically an automated sample loading device for loading samples in a single combustion test. Background Technology

[0002] In the fire resistance testing of building materials, especially the flame retardant performance testing of decorative fire-retardant coatings, precise fire-exposed tests are required. In traditional testing equipment, the installation and movement of samples often rely on manual operation, which is not only inefficient and labor-intensive, but also makes it difficult to ensure the consistency and repeatability of test conditions.

[0003] Furthermore, in single-unit combustion tests, the specimen needs to be precisely positioned and ignited within the combustion chamber, which places higher demands on the installation and movement of the specimen. Utility Model Content

[0004] The purpose of this invention is to provide an automated sample loading device for loading samples in a single-unit combustion test, which features a simple structure, convenient operation, and reduced labor intensity.

[0005] This utility model can be achieved through the following technical solutions:

[0006] This utility model discloses an automated sample loading device for loading samples in a single combustion test, including a sample loading rack movably set at the combustion chamber floor, and a slide rail assembly provided between the sample loading rack and the combustion chamber floor. The sample loading rack moves back and forth along the slide rail assembly to realize the automated sample loading in the combustion chamber.

[0007] Furthermore, the slide rail assembly includes auxiliary slide rails arranged parallel to the sample feed frame and drive slide rails arranged parallel between the two auxiliary slide rails. The end of the drive slide rail is connected to the bottom of the sample feed frame, driving the sample feed frame to move back and forth on the auxiliary slide rails.

[0008] Furthermore, pulley systems are installed between the sample feed frame and the auxiliary slide rail, and between the drive slide rail and the combustion chamber floor, to ensure smooth sliding of the sample feed frame. The diameter of the pulleys in the pulley system can be flexibly selected according to different positions, as long as the overall smooth movement of the sample feed frame is achieved, the requirements are met.

[0009] Furthermore, a drive motor is installed at the bottom of the sample inlet frame, and the output shaft of the drive motor is connected to the drive slide rail. The other end of the drive slide rail is equipped with a buffer block for cushioning the end of the stroke. The drive motor is a 7.5kW servo motor, which has high torque output and can meet the precise control requirements of the sample inlet frame movement in single-unit combustion tests. The transmission mechanism uses an SV360P series servo driver, which has high-performance control capabilities, can achieve precise position and speed control, supports multiple communication protocols, and is easy to integrate with other devices.

[0010] Furthermore, a sample holder is provided at the top of the sample feed rack. This sample holder is suspended opposite to the bottom of the combustion chamber, forming a sufficient combustion space to ensure the accuracy of the test.

[0011] Furthermore, the sides of the sample feed rack are connected to each other to form a closed combustion chamber space.

[0012] Furthermore, a limiting protrusion is provided at one or both ends of the auxiliary slide rail to prevent the sample holder from moving off the auxiliary slide rail.

[0013] Furthermore, the sample introduction device also includes a control component, which includes a controller electrically connected to the drive motor to control the movement of the drive motor. The controller uses a Siemens S7-1214C PLC controller, which has a high-performance CPU, supports fast processing and multiple communication protocols, and can achieve precise position and speed control of the sample introduction frame.

[0014] Furthermore, the control component is equipped with a touchscreen for visual operation and an emergency stop button for emergency braking. The touchscreen is a Weintek TK8072iP, which features high resolution and fast response, providing an intuitive user interface for easy parameter setting and monitoring. Both the touchscreen and the emergency stop button are electrically connected to the controller, ensuring that the sample holder movement can be quickly stopped in an emergency, guaranteeing experimental safety.

[0015] Furthermore, the automated sample introduction device also includes a displacement sensor installed on the sample introduction frame. This displacement sensor adopts the GEFRAN PK-M series linear displacement sensor and is electrically connected to the controlled components to realize the detection of the movement position of the sample introduction frame and the control of the movement process. The GEFRAN PK-M series linear displacement sensor features high precision and high reliability, and can provide accurate position feedback to ensure the precise movement and positioning of the sample introduction frame.

[0016] This utility model discloses an automated sample loading device for loading samples in a single-unit combustion test, which has the following beneficial effects:

[0017] This invention relates to an automated sample loading device for single-unit combustion tests, which achieves automated sample movement and precise positioning, improving testing efficiency and accuracy. The slide rail assembly design ensures smooth movement of the sample loading frame, while the drive motor and transmission mechanism of the drive assembly provide stable power to the sample loading frame, and the control assembly enables precise control of the sample loading frame's movement.

[0018] In addition, the inclusion of a sample holder, limit protrusions, and an emergency button further enhances the safety and reliability of the test.

[0019] This utility model is an automated sample loading device for single-unit combustion tests. It features simple structure, convenient operation, reduced labor intensity, and improved testing efficiency and accuracy. It is suitable for testing devices for the flame retardant performance of decorative fireproof coatings and has broad application prospects. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an automated sample loading device for single-unit combustion tests according to the present invention.

[0021] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0022] Figure 3 This is a schematic diagram of the drive control.

[0023] The labels in the attached diagram include: 1. Sample feed holder; 2. Slide rail assembly; 3. Drive assembly; 4. Control assembly; 11. Sample holder; 12. Pulley block; 21. Auxiliary slide rail; 22. Drive slide rail; 23. Limiting protrusion; 24. Buffer block; 41. Controller; 42. Displacement sensor; 43. Touch screen; 44. Emergency button. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the product of this utility model will be further described in detail below with reference to the embodiments and accompanying drawings.

[0025] like Figure 1As shown, this utility model discloses an automated sample loading device for loading samples in a single combustion test, including a sample loading frame 1, a slide rail assembly 2, a drive assembly 3, and a control assembly 4. The sample loading frame 1 carries the sample and has a sample fixing seat 11 for firmly fixing the sample to the sample loading frame 1. The slide rail assembly 2 includes two parallel auxiliary slide rails 21 and a drive slide rail 22. The auxiliary slide rails 21 are fixed to the floor of the combustion chamber, and the drive slide rails 22 are connected to the drive assembly 3 and fixed to the bottom of the sample loading frame 1. The bottom of the sample loading frame 1 has a pulley assembly 12 that cooperates with the slide rails 21. The pulley assembly 12 includes multiple pulleys, which are respectively installed on both sides of the sample loading frame 1 for smooth movement along the slide rails 21. Similarly, a pulley assembly 12 is also provided between the drive slide rail 22 and the combustion chamber floor.

[0026] like Figure 3 As shown, the slide rail assembly 2 also includes a limiting protrusion 23 and a buffer block 24, which are used to limit the movement range of the sample feeder 1 and prevent the sample feeder 1 from derailing or colliding during movement.

[0027] like Figure 1 As shown, the drive assembly 3 includes a drive motor and a transmission mechanism. The drive motor is a 7.5kW servo motor, which has high torque output and can meet the precise control requirements for the movement of the sample holder in the single combustion test. The transmission mechanism uses an SV360P series servo driver, which has high-performance control capabilities, can achieve precise position and speed control, supports multiple communication protocols, and is easy to integrate with other devices. The drive assembly 3 is fixed to the bottom of the sample holder 1. The drive motor is mounted on the sample holder 1, and the transmission mechanism connects the drive motor and the drive slide rail 22, which is used to transmit the power of the drive motor to the drive slide rail 22, thereby driving the pulley block 12 to move and driving the sample holder 1 to move along the slide rail 21.

[0028] like Figure 1 As shown, the control component 4 includes a controller 41, a displacement sensor 42, and a touch screen 43. The controller 41 receives signals from the displacement sensor 42 and controls the operation of the motor. The displacement sensor 42 detects the position and speed of the sample holder 1. The touch screen 43 is used to input control commands to achieve remote control of the movement of the sample holder 1. The control component 4 also includes an emergency button 44, which is used to quickly stop the movement of the sample holder 1 in an emergency to ensure experimental safety.

[0029] The automated sample loading device for single-unit combustion tests of this invention allows for sample loading. During use, control commands are input via the touchscreen 43. The controller 41, based on the position and speed signals detected by the displacement sensor 42, controls the drive motor to move the sample loading frame 1 smoothly along the slide rail 21 to the designated position, completing the sample loading and fire test. The sample holder 11 ensures that the sample does not shift during movement and fire exposure, while the limiting protrusion 23, buffer block 24, and emergency button 44 further enhance the safety and reliability of the test.

[0030] In this invention, all electrical connections are conventional and use existing electrical connection structures, which will not cause any problems in implementation.

[0031] In the description of this utility model, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] The above embodiments are merely specific examples of this utility model, and their descriptions are quite specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these obvious substitutions all fall within the protection scope of this utility model.

Claims

1. An automated sample loading device for loading samples in a single-unit combustion test, comprising a sample loading rack movably mounted on the floor of the combustion chamber, characterized in that: A slide rail assembly is provided between the sample inlet frame and the combustion chamber floor. The sample inlet frame moves back and forth along the slide rail assembly to realize the automated sample injection into the combustion chamber.

2. The automated sample loading device for loading samples in a single-unit combustion test according to claim 1, characterized in that: The slide rail assembly includes auxiliary slide rails arranged parallel to the sample feed frame and drive slide rails arranged parallel between the two auxiliary slide rails. The end of the drive slide rail is connected to the bottom of the sample feed frame, driving the sample feed frame to move back and forth on the auxiliary slide rails.

3. The automated sample loading device for loading samples in a monomer combustion test according to claim 2, characterized in that: A set of pulleys is provided between the sample feed rack and the auxiliary slide rail, and between the drive slide rail and the combustion chamber floor, to enable the sample feed rack to slide smoothly.

4. The automated sample loading device for loading samples in a single-unit combustion test according to claim 3, characterized in that: The bottom of the sample feed rack is equipped with a drive motor, the output shaft of which is connected to the drive slide rail. The other end of the drive slide rail is equipped with a buffer block for buffering the end of the stroke.

5. The automated sample loading device for loading samples in a single-unit combustion test according to claim 4, characterized in that: The top of the sample feed rack is provided with a sample holder, which is suspended opposite to the bottom of the combustion chamber.

6. The automated sample loading device for loading samples in a single-unit combustion test according to claim 5, characterized in that: The sides of the injection rack are connected to each other to form a closed combustion chamber space.

7. The automated sample loading device for loading samples in a single-unit combustion test according to claim 6, characterized in that: One or both ends of the auxiliary slide rail are provided with a limiting protrusion to prevent the sample holder from moving off the auxiliary slide rail.

8. The automated sample loading device for loading samples in a monomer combustion test according to claim 7, characterized in that: The sample introduction device also includes a control component, which includes a controller electrically connected to the drive motor to control the movement of the drive motor.

9. The automated sample loading device for loading samples in a single-unit combustion test according to claim 8, characterized in that: The control unit is equipped with a touch screen for visual operation and an emergency button for emergency braking. Both the touch screen and the emergency button are electrically connected to the controller.

10. The automated sample loading device for loading samples in a monomer combustion test according to claim 9, characterized in that: The automated sample feeding device also includes a displacement sensor installed on the sample feeding rack. This position sensor is electrically connected to the controlled component to detect the movement position of the sample feeding rack and control the movement process.

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