Automatic sample preparation device for F-12 fibers

Abstract

The utility model relates to an automatic sample preparation device for F-12 fiber, which comprises a complete machine support frame, an intelligent control system, an intelligent constant-temperature box, a preparation bracket, an X-axis rotary stepping motor and preparation sample fiber, the complete machine support frame is the foundation of the whole test device and is divided into an upper part and a lower part, the preparation bracket is fixedly connected by an upper bracket structure, and the preparation sample fiber is arranged in the preparation bracket; the lower part accommodates an intelligent control system, an intelligent thermostat controller and a power supply module required by the whole machine; the intelligent constant-temperature box is arranged at the bottom end of the upper support structure of the complete machine supporting rack and used for containing glue and heating the glue; the preparation support is connected with the upper support structure of the whole machine supporting rack through a shaft assembly and used for being fixedly connected with the preparation support. The X-axis rotating stepping motor is fixed to the upper support structure of the whole machine supporting rack, fixedly connected with the preparation support and used for providing rotating power for the sample preparation device. According to the automatic sample preparation device, impurities are not brought in, and the test accuracy is improved; working efficiency is improved, and production requirements are met.

Description

Technical Field

[0001] This utility model relates to the field of F-12 high-performance fiber technology, specifically to an automatic sample preparation device for F12 fibers. Background Technology

[0002] F-12 fiber is a ternary aromatic polyamide fiber containing benzimidazole heterocycles (referred to as heterocyclic aramid). It has excellent properties such as low density, high strength, high modulus, high temperature resistance, flame retardancy, impact resistance, wave transmission, insulation, and chemical corrosion resistance, and is widely used in many fields.

[0003] In the performance evaluation of F-12 fiber, the tensile property test of multifilament is a commonly used evaluation method, which mainly includes: tensile breaking strength, tensile elastic modulus and elongation at break. The national standard GJB 348-2018 "Test Method for Tensile Properties of Aramid Multifilament - Impregnation Method" specifies the test equipment and test procedures for testing aramid multifilament by impregnation method. This standard indicates that the test preparation process has a great influence on the accuracy of the test, and to a large extent affects the efficiency of fiber testing by impregnation method and the success of fiber performance testing.

[0004] The current method of sample preparation involves applying glue to the fibers using a wooden stick or by hand, first coating one side and then the other two. This method has several drawbacks. First, dust and impurities from the stick or hands can easily contaminate the glue, altering its properties and severely impacting test results, leading to failure. Second, the amount of glue applied each time is uncontrollable, resulting in uneven application and significantly affecting test data accuracy. Third, manual sample preparation is inefficient; operators are often covered in sweat and glue, hindering efficient task completion. Finally, manual operation inevitably leads to glue leakage and waste. Therefore, manual sample preparation is inefficient, making it difficult to use this device to prepare multiple batches of impregnated fibers in a short time, especially under tight deadlines and high workloads.

[0005] In summary, while existing methods can produce adhesive-coated fibers that meet testing requirements, they suffer from the following drawbacks: impurities can easily enter during the impregnation process, causing test failures; manual sample preparation cannot simultaneously cure multiple batches of fibers, severely impacting sample preparation efficiency; the lack of quantification in adhesive application during preparation leads to inconsistent sample amounts, affecting data accuracy; and manual operation results in waste and loss of fiber, adhesive, and electricity, as well as pollution of the factory. Summary of the Invention

[0006] This invention provides an automated batch sample preparation device for F-12 fiber to solve the problems of low efficiency and impurities affecting sample quality in the manual sample preparation process, thereby improving production efficiency.

[0007] To address the aforementioned technical problems, one objective of this invention is to provide an automated sample preparation device for F-12 fibers. This device includes: a machine support frame 1, an intelligent control system 2, an intelligent constant temperature chamber 3, a preparation support 4, an X-axis rotary stepper motor 5, sample fibers 6, and an upper support structure 7.

[0008] The overall support frame 1 is the foundation of the overall test device, which is divided into upper and lower parts. The upper support structure fixes the preparation support 4, and the lower part accommodates the intelligent control system 2, the intelligent constant temperature chamber controller and the power module required for the whole machine.

[0009] The intelligent constant temperature box 3 is placed at the bottom of the upper support structure of the whole machine support frame 1, and is used to hold the glue and heat the glue, and maintain a constant temperature during the working process.

[0010] The preparation support 4 is connected to the upper support structure of the whole machine support frame through a shaft assembly, which is used to fix the preparation support, and the preparation support is used to support the fibers;

[0011] The X-axis rotary stepper motor 5 is fixed to the upper support structure 7 of the whole machine support frame by bolts. The X-axis and the stepper motor are connected by a coupling, passing through the center hole of the upper support structure, and the other end is fixedly connected to the upper support structure 7 at the other end of the upper part. The X-axis rotary stepper motor 5 can provide rotational power for the sample preparation device.

[0012] Furthermore, the preparation support 4 has a cubic structure to fix the fiber of the preparation sample.

[0013] Furthermore, the fibers are evenly wound onto the preparation scaffold 4, and have tiny grooves spaced 30 mm apart.

[0014] Furthermore, the opening of the intelligent constant temperature box 3 is not smaller than the surface of the preparation support 4.

[0015] Based on the same inventive concept, this utility model also provides a method for preparing an automated sample preparation device for F-12 fibers, comprising the following steps:

[0016] S1: Wrap the fiber evenly onto the preparation frame and fix the preparation frame onto the machine;

[0017] S2: Connect the power supply and start the equipment. The equipment first starts the intelligent constant temperature chamber 3. After the temperature of the intelligent constant temperature chamber reaches the working temperature, it enters the heat preservation program and maintains the temperature within ±5 degrees Celsius. The sensor transmits the signal to the intelligent control system, activates the X-axis rotary stepper motor 5, and adjusts the preparation support 4 to a 90-degree vertical position with the intelligent constant temperature chamber 3.

[0018] S3: After the infrared sensor confirms that the position is correct, the drive motor at the bottom of the machine support frame 1 is started, and one side of the preparation support 4 is lowered into the intelligent constant temperature chamber 3 to complete the first side fiber impregnation.

[0019] S4: After the first side is impregnated and meets the specified requirements, the preparation rack is raised and rotated 90 degrees to begin the second side impregnation. The other two sides are impregnated in the same way.

[0020] S5: After all the glue is impregnated, wait for the specified time to allow the glue beads to fall naturally. Then, make a sound to notify the operator that the glue impregnation is complete, remove the preparation rack, and proceed to the next process.

[0021] Furthermore, after the S5 impregnation is completed, the prepared scaffold 4 is left to stand naturally for about 1 hour.

[0022] The above-described one or more technical solutions of this utility model have at least one or more of the following technical effects:

[0023] This utility model's automated sample preparation device does not introduce impurities, thus improving testing accuracy; the automated adhesive preparation device can improve work efficiency and meet production needs; the automated adhesive preparation device enables quantification of adhesive dosage, improving the success rate of adhesive preparation; and it avoids waste and loss caused by adhesive sticking to clothes, gloves, or the factory, thereby reducing costs. Attached Figure Description

[0024] Figure 1 : Used in an automated batch sample preparation device for F-12 fibers;

[0025] Figure 2 : 3D view of the sample preparation apparatus;

[0026] Figure 3 Schematic diagram of the sample preparation apparatus;

[0027] Among them: 1-The whole machine support frame, 2-Intelligent control system, 3-Intelligent constant temperature chamber, 4-Preparation bracket, 5-X-axis rotary stepper motor, 6-Preparation fiber. Detailed Implementation Plan

[0028] This invention relates to an automated batch sample preparation device for F-12 fiber. The design organically combines an automatic constant temperature chamber, automatic impregnation, and an automatic control system, thereby meeting the requirements for multifilament tensile performance testing. Simultaneously, it effectively avoids the introduction of impurities during the sample preparation process, ensuring the quality of the adhesive and ultimately guaranteeing test accuracy. It solves the problem of low efficiency in manual preparation. This invention simultaneously meets the working conditions for sample preparation and the requirements for automatic impregnation. Its unified control system distinguishes it from ordinary heating and impregnation devices. The automated equipment can automatically complete sample preparation, increasing efficiency several times compared to manual sample preparation; it allows for controllable adhesive production, improving the accuracy of test data; it avoids adhesive waste and loss; and it prevents contamination of operators and factory floors.

[0029] An automated sample preparation device for F-12 fibers, such as Figure 1 As shown. The device includes a main support frame 1, an intelligent control system 2, an intelligent constant temperature chamber 3 (for glue placement), a preparation support 4, an X-axis rotary stepper motor 5, a sample fiber preparation unit 6, and an upper support structure 7. The main support frame 1 forms the foundation of the overall testing device and is divided into upper and lower parts. The upper support structure fixes the preparation support 4, while the lower part houses the core hardware, including a PLC and power module, as well as supporting components such as an actuator motor, buzzer, and heater. The intelligent constant temperature chamber 3 is located at the bottom of the upper support structure of the main support frame 1 and is used to hold and heat the glue, maintaining a constant temperature during operation. The preparation support 4 is connected to the upper support structure of the main support frame via a shaft assembly for fixing the preparation support, which is used to support the fiber. The X-axis rotary stepper motor 5 is fixed to the upper support structure 7 of the main support frame with bolts. The X-axis and the stepper motor are connected via a coupling, passing through the central hole of the upper support structure, and the other end is fixedly connected to the upper support structure 7 at the other end. The X-axis rotary stepper motor 5 provides rotational power for the sample preparation device.

[0030] The steps for using this device are as follows: Install the preparation support 4, connect the power supply, operate the control panel of the intelligent control system 2, and start the equipment. The equipment first starts the intelligent constant temperature chamber 3. After the temperature of the intelligent constant temperature chamber reaches the required working temperature, the sensor transmits the signal to the intelligent control system, activating the X-axis rotary stepper motor 5. Adjust the preparation support 4 to a 90-degree vertical position with the intelligent constant temperature chamber 3. After confirming the position is correct through the infrared sensor, start the drive motor inside the machine support frame 1 to lower the preparation support 4 and the X-axis rotary stepper motor 5, so that the prepared fiber 6 is placed into the intelligent constant temperature chamber 3 to complete the fiber impregnation. After the set time is reached, brake and raise the preparation support 4 and the X-axis rotary stepper motor 5 to raise the prepared fiber 6 to the set height. Repeat this cycle 4 times to complete the impregnation of all four sides of the preparation support 4. Then, the intelligent constant temperature chamber 3 is powered off and cooled down. After the set time is completed and the residual glue has fallen off, an alarm sound is emitted to indicate that the preparation process is complete. Remove the preparation support.

[0031] The following description, in conjunction with embodiments of this utility model and accompanying drawings, demonstrates its general functionality. Figure 1-3 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all of the embodiments obtained. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art are within the protection scope of this utility model.

[0032] Automated batch sample preparation device, such as Figure 3 As shown, the working principle of this device is to provide the necessary working conditions for sample preparation and to provide automated operation. Specifically, after assembling the preparation support, the intelligent constant temperature chamber is started. After the temperature of the intelligent constant temperature chamber reaches the required working temperature, the sample is automatically dropped for impregnation, and then rotated in sequence to complete the automatic impregnation. The sample is then allowed to fall off the glue beads naturally, and homogenization is completed. After the requirements are met, the device alerts the operator and then automatically enters sleep mode, waiting for the next operation.

[0033] The steps for using this device are as follows: Step 1: Evenly wind the fibers onto the preparation rack at 30mm intervals, install the preparation rack 4 onto the machine, and tighten the quick-fixing bolts; connect the power supply, start the equipment, enter standby mode, operate the intelligent control system operation panel to set parameters, start the intelligent constant temperature chamber, and start the equipment simultaneously; after the intelligent constant temperature chamber reaches the required working temperature, the sensor transmits the signal to the intelligent control system, activating the X-axis rotary stepper motor 5, adjusting the preparation rack 4 to a 90-degree perpendicular position to the intelligent constant temperature chamber 3, and after confirming the position is correct using an infrared sensor, start the drive motor inside the machine support frame 1 to lower and prepare... The support frame 4 and X-axis rotary stepper motor 5 guide the fiber 6 into the intelligent constant temperature chamber 3 to complete the first layer of fiber impregnation. After the first layer of impregnation is completed and meets the specified requirements, the support frame 4 and X-axis rotary stepper motor 5 are braked and raised to the set height, and the fiber 6 is rotated 90 degrees to begin the second layer of impregnation. After the second layer of impregnation is completed, this process is repeated 4 times to complete the impregnation of all four sides of the support frame 4. After all impregnation is completed, the intelligent constant temperature chamber 3 is powered off and cooled down. After a set time (about 1 hour), the residual glue falls off and homogenization is completed naturally. A prompt sound indicates that the preparation process is complete. The support frame 4 is then removed, and the process proceeds to the next step.

[0034] This invention provides an automatic sample preparation and impregnation process with uniform and clean adhesive. By setting parameters such as temperature, time, and rotation speed, the optimal impregnation requirements can be achieved, resulting in a high success rate in adhesive preparation and accurate testing of the tensile properties of multifilaments.

[0035] Obviously, those skilled in the art can make various modifications and variations to the embodiments of this utility model without departing from the spirit and scope of the embodiments of this utility model. Therefore, if these modifications and variations to the embodiments of this utility model fall within the scope of the claims of this utility model and their equivalents, then this utility model also intends to include these modifications and variations.

Claims

1. A device for automatic preparation of a test sample of F-12 fiber, characterized in that, The device includes: a whole machine support frame (1), an intelligent control system (2), an intelligent constant temperature chamber (3), a preparation support (4), an X-axis rotary stepper motor (5), preparation sample fibers (6), and an upper support structure (7). The whole machine support frame (1) is the foundation of the whole test device. It is divided into upper and lower parts. The upper support structure (7) fixes the preparation support (4) and the lower part accommodates the intelligent control system (2), the intelligent constant temperature chamber controller and the power module required for the whole machine. The intelligent constant temperature box (3) is placed at the bottom of the upper support structure of the whole machine support frame (1) and is used to hold glue and heat glue, and maintain a constant temperature during the working process; The preparation support (4) is connected to the upper support structure of the whole machine support frame through a shaft assembly for fixing the preparation support, and the preparation support is used to support the fibers; The X-axis rotary stepper motor (5) is fixed to the upper support structure (7) of the whole machine support frame by bolts. The X-axis is connected to the stepper motor through a coupling, passes through the center hole of the upper support structure, and is fixedly connected to the upper support structure (7) at the other end. The X-axis rotary stepper motor (5) provides rotational power for the sample preparation device.

2. The apparatus for automatic preparation of test samples of F-12 fibers according to claim 1, characterized in that: The preparation support (4) is a cubic frame structure that fixes the fiber of the preparation sample.

3. The apparatus for automatic preparation of test samples of F-12 fibers according to claim 2, characterized in that: The fiber is evenly wound onto the preparation scaffold (4) and has tiny grooves with a spacing of 30 mm.

4. The apparatus for automatic preparation of test specimens of F-12 fiber according to claim 1, characterized in that: The opening of the intelligent constant temperature box (3) is not smaller than the surface of the preparation support (4).

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