Nylon 66 salt melting point measuring device

Abstract

The utility model belongs to the technical field of detection devices, and particularly relates to a nylon 66 salt melting point measuring device. Comprising a miniature screw feeder, a hot melting sealing machine, a positioning device and a heating measuring device, the positioning device comprises a sliding rail, and a clamp is connected to the sliding rail; the heating measuring device comprises an electromagnetic heating device, a heating groove is formed in the electromagnetic heating device, and a temperature sensor and an optical fiber sensor are arranged in the heating groove. According to the device, by integrating a miniature spiral feeding system, a hot melting sealing system, an accurate positioning system, an automatic heating measurement system and other systems, the accuracy, operation convenience and measurement stability of nylon 66 salt melting point measurement are remarkably improved, meanwhile, automatic control over the measurement process is achieved, and the universality and adaptability of the device are enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of detection devices, and in particular relates to a nylon 66 salt melting point determination device. Background Art

[0002] Nylon 66, as a high-performance engineering material, has been widely used in many key fields such as the automotive industry, electronic appliances, and machinery manufacturing due to its excellent mechanical properties, wear resistance, heat resistance, and good electrical insulation properties. As the main raw material for nylon 66, hexamethylenediamine and adipic acid are synthesized into nylon 66 salt through precise chemical reactions, which is a key step in the production process of nylon 66. In the synthesis process of nylon 66 salt, hexamethylenediamine and adipic acid react in a molar ratio to generate nylon 66 salt. Subsequently, the nylon 66 salt undergoes processes such as concentration and evaporation, polymerization, and pelletizing to finally obtain nylon 66 chips. This series of complex chemical reactions and physical treatment processes have a crucial impact on the performance of the final product.

[0003] The quality of nylon 66 salt directly affects the performance of the final nylon 66 chips. The melting point of salt is an important indicator to measure the purity and impurity content of salt, and plays a vital role in controlling the quality of salt. If the melting point of the salt is unstable or there are too many impurities, the performance of nylon 66 chips will be reduced, which will affect its application in various fields.

[0004] At present, although there are some traditional measurement methods for measuring the melting point of nylon 66 salt, these methods often have problems such as cumbersome operation, low measurement accuracy and low degree of automation. These problems not only affect the accuracy of measurement, but also limit the improvement of production efficiency. Therefore, it is necessary to develop a new nylon 66 salt melting point determination device to solve the problems existing in the prior art. Utility Model Content

[0005] In view of the above deficiencies in the prior art, the purpose of the utility model is to provide a nylon 66 salt melting point determination device, which significantly improves the accuracy, operation convenience and measurement stability of nylon 66 salt melting point determination by integrating micro-screw feeding, hot melt sealing, precise positioning and automated heating measurement systems, while realizing automated control of the determination process and enhancing the versatility and adaptability of the device.

[0006] The utility model is realized by adopting the following technical solutions:

[0007] The nylon 66 salt melting point determination device comprises a micro screw feeder, a hot melt sealing machine, a positioning device and a heating measurement device. The positioning device comprises a slide rail, on which a clamp is connected; the heating measurement device comprises an electromagnetic heating device, on which a heating tank is provided, in which a temperature sensor and an optical fiber sensor are provided.

[0008] The invention also comprises a bracket, two ends of the slide rail are fixed on the bracket, and a clamp connected to the slide rail comprises a sliding block, an automatic telescopic rod and a sample clamping arm which are connected in sequence.

[0009] A driving motor is arranged inside the sliding block; an angle adjuster is arranged on the sample clamping arm.

[0010] The inlet of the micro screw feeder is connected with a material storage box, and the micro screw feeder is provided with a frequency converter regulating motor.

[0011] The hot melt sealing machine is provided with a heating plate, and is also provided with a heating plate temperature controller, a sealing pressure regulator and a sealing time timer.

[0012] The electromagnetic heating device is provided with a heating power controller; the heating tank is filled with heat transfer oil; and the number of the optical fiber sensors is more than one group.

[0013] The nylon 66 salt melting point determination device also includes a control system, which is electrically connected to a temperature sensor, an optical fiber sensor, an automatic telescopic rod, a drive motor, an angle adjuster, a frequency converter regulating motor, a heating plate temperature controller, a sealing pressure regulator, a sealing time timer and a heating power controller.

[0014] The working principle of the nylon 66 salt melting point determination device is as follows:

[0015] First, the capillary tube for holding the nylon 66 salt sample to be tested is fixed on the sample clamping arm. The sample clamping arm can fine-tune the angle of the capillary tube through the angle adjuster. The nylon 66 salt raw material is placed in the storage box. The micro screw feeder is started, and the frequency converter adjusts the motor to control its speed, and accurately feeds a certain amount of nylon 66 salt raw material into the capillary tube. This step ensures that the sample amount measured each time is consistent, which improves the accuracy of the measurement. Subsequently, under the action of the drive motor, the slider drives the capillary tube to move along the slide rail. The position of the capillary tube can be accurately adjusted through the synergistic effect of the automatic telescopic rod and the sample clamping arm.

[0016] The capillary tube containing the sample is clamped by the sample clamping arm and transferred to the bottom of the heating plate of the hot melt sealing machine. The heating plate preheats and seals the open end of the capillary tube under the precise setting of the heating plate temperature controller. The sealing pressure regulator and the sealing time timer control the sealing pressure and time respectively to ensure a good sealing effect. The sealed capillary tube is clamped by the sample clamping arm and moved to the heating measurement device for measurement. The position and angle of the capillary tube can be further accurately adjusted by the extension and retraction of the automatic telescopic rod and the angle adjustment of the sample clamping arm to ensure that it is in the best position during the subsequent measurement process, so as to obtain more accurate measurement results.

[0017] In the heating measurement device, the electromagnetic heating device heats the thermal oil through the heating tank. The thermal oil transfers heat to the sample in the capillary. The temperature sensor monitors the temperature in the heating tank in real time. Fiber optic sensors are set at multiple positions in the heating tank to detect the intensity of light passing through the capillary. When the sample begins to melt and become transparent, the intensity of light passing through the capillary increases. The sensor monitors the change in light intensity in real time. When the light intensity reaches a certain preset threshold, the function of recording temperature is triggered and the data is sent to the control system, thereby obtaining the melting point of nylon 66 salt.

[0018] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0019] (1) The nylon 66 salt melting point determination device described in the utility model ensures the high consistency of sample quantity in each test through an integrated material delivery and precise metering system, effectively reducing the measurement error caused by sample quantity differences, thereby significantly improving the measurement accuracy and data consistency. At the same time, the precise sealing of the sample container further ensures the stability of the test environment and enhances the reliability of the measurement results;

[0020] (2) The nylon 66 salt melting point determination device described in the utility model adopts an advanced mechanical positioning and adjustment mechanism to realize the full automation operation of the sample from loading, sealing to measurement, which greatly simplifies the complex process of traditional manual operation, not only improves work efficiency, but also reduces the risk of error introduced by human factors, making the entire determination process smoother and more efficient;

[0021] (3) The nylon 66 salt melting point determination device described in the utility model can capture the temperature changes and light transmittance changes of the sample in the melting process in real time and accurately by integrating a high-precision temperature sensor and a light intensity monitoring system, thereby improving the accuracy of the measurement results. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of the nylon 66 salt melting point determination device of the utility model in a non-working state;

[0023] Figure 2 This is a schematic diagram of the structure of the nylon 66 salt melting point determination device during the measurement process of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the micro screw feeder described in the utility model;

[0025] Figure 4 It is a structural schematic diagram of the hot melt sealing machine described in the utility model;

[0026] In the figure: 1. micro screw feeder; 2. hot melt sealing machine; 3. positioning device; 4. heating measuring device; 5. slide rail; 6. clamp; 7. electromagnetic heating device; 8. heating tank; 9. temperature sensor; 10. optical fiber sensor; 11. bracket; 12. slider; 13. automatic telescopic rod; 14. sample clamping arm; 15. driving motor; 16. angle adjuster; 17. material storage box; 18. inverter adjustment motor; 19. heating plate; 20. heating plate temperature controller; 21. sealing pressure regulator; 22. sealing time timer; 23. heating power controller. DETAILED DESCRIPTION

[0027] In order to make the purpose and technical solution of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings.

[0028] Example 1

[0029] like Figures 1 to 4 As shown, the nylon 66 salt melting point determination device comprises a micro screw feeder 1, a hot melt sealing machine 2, a positioning device 3 and a heating measuring device 4, wherein the positioning device 3 comprises a slide rail 5, and a clamp 6 is connected to the slide rail 5; the heating measuring device 4 comprises an electromagnetic heating device 7, and a heating tank 8 is provided on the electromagnetic heating device 7, and a temperature sensor 9 and an optical fiber sensor 10 are provided in the heating tank 8.

[0030] The slide rail 5 further comprises a bracket 11 , on which both ends of the slide rail 5 are fixed. The clamp 6 connected to the slide rail 5 comprises a slider 12 , an automatic telescopic rod 13 and a sample clamping arm 14 which are connected in sequence.

[0031] The slide block 12 is provided with a driving motor 15 ; the sample clamping arm 14 is provided with an angle adjuster 16 .

[0032] The inlet of the micro screw feeder 1 is connected to a material storage box 17 , and a frequency converter regulating motor 18 is provided on the micro screw feeder 1 .

[0033] The hot melt sealing machine 2 is provided with a heating plate 19 , and is also provided with a heating plate temperature controller 20 , a sealing pressure regulator 21 and a sealing time timer 22 .

[0034] The electromagnetic heating device 7 is provided with a heating power controller 23; the heating tank 8 is filled with heat transfer oil; and the optical fiber sensors 10 are provided in three groups.

[0035] The nylon 66 salt melting point determination device also includes a control system, which is electrically connected to the temperature sensor 9, the optical fiber sensor 10, the automatic telescopic rod 13, the drive motor 15, the angle adjuster 16, the inverter adjustment motor 18, the heating plate temperature controller 20, the sealing pressure regulator 21, the sealing time timer 22 and the heating power controller 23 respectively.

[0036] When working, the specific steps are as follows:

[0037] 1) Preparation stage:

[0038] The nylon 66 salt sample to be tested is placed in the storage box 17 .

[0039] The capillary tube for holding the sample is fixed on the sample holding arm 14, and the angle of the capillary tube is finely adjusted by the angle adjuster 16 to ensure its optimal position during the measurement process.

[0040] 2) Sample loading:

[0041] The micro screw feeder 1 is started, and the speed of the motor 18 is controlled by the frequency converter to accurately feed a quantitative amount of nylon 66 salt raw material into the capillary tube. This step ensures that the sample amount measured each time is consistent, thereby improving the accuracy of the measurement.

[0042] 3) Sample positioning:

[0043] The driving motor 15 is started, driving the slider 12 to move along the slide rail 5, and further driving the capillary to move to a specified position.

[0044] Through the extension and retraction of the automatic telescopic rod 13 and the coordinated action of the sample clamping arm 14, the position of the capillary is accurately adjusted to prepare for the sealing process.

[0045] 4) Sample sealing:

[0046] The capillary tube is conveyed below the heating plate 19 of the hot melt sealing machine 2 .

[0047] The heating plate temperature controller 20 sets the temperature of the heating plate to preheat and seal the open end of the capillary.

[0048] The sealing pressure regulator 21 and the sealing time timer 22 control the sealing pressure and time respectively to ensure a good sealing effect and prevent the sample from scattering or deforming during the heating measurement process.

[0049] 5) Measurement preparation:

[0050] The capillary tube after the sealing process is moved to the heating tank 8 of the heating measurement device 4 again through the coordinated action of the automatic telescopic rod 13 and the sample clamping arm 14 .

[0051] By extending and retracting the automatic telescopic rod 13 and adjusting the angle of the sample clamping arm 14, the position and angle of the capillary are further accurately adjusted to ensure that it is in the best position during the subsequent measurement process.

[0052] 6) Heating measurement:

[0053] The electromagnetic heating device 7 is started to heat the heat transfer oil through the heating tank 8. The heat transfer oil transfers heat to the sample in the capillary.

[0054] The temperature sensor 9 monitors the temperature in the heating tank 8 in real time and feeds the data back to the control system.

[0055] A plurality of optical fiber sensors 10 are arranged in the heating tank 8 to detect the intensity of light passing through the capillary tube. When the sample begins to melt and become transparent, the intensity of light passing through the capillary tube increases.

[0056] 7) Data recording and analysis:

[0057] The optical fiber sensor 10 monitors the change of light intensity in real time, and when the light intensity reaches a preset threshold, it triggers the control system to record the current temperature.

[0058] The control system calculates the melting point of nylon 66 salt according to the data from the temperature sensor 9 and the optical fiber sensor 10 through a preset program and algorithm, and outputs the result.

[0059] The entire process is automated through the control system, achieving full automation from sample loading, positioning, sealing to heating measurement and data recording and analysis, thus improving the accuracy and efficiency of the measurement.

Claims

1. A nylon 66 salt melting point determination device, characterized in that: The invention comprises a micro screw feeder (1), a hot melt sealing machine (2), a positioning device (3) and a heating measuring device (4), wherein the positioning device (3) comprises a slide rail (5) to which a clamp (6) is connected; the heating measuring device (4) comprises an electromagnetic heating device (7), wherein a heating groove (8) is provided on the electromagnetic heating device (7), and a temperature sensor (9) and an optical fiber sensor (10) are provided in the heating groove (8).

2. The nylon 66 salt melting point measuring device according to claim 1, characterized in that: It also includes a bracket (11), both ends of the slide rail (5) are fixed on the bracket (11), and the clamp (6) connected to the slide rail (5) includes a slider (12), an automatic telescopic rod (13) and a sample clamping arm (14) which are connected in sequence.

3. The nylon 66 salt melting point measuring device according to claim 2, characterized in that: A driving motor (15) is provided in the sliding block (12); and an angle adjuster (16) is provided on the sample clamping arm (14).

4. The nylon 66 salt melting point measuring device according to claim 3, characterized in that: The inlet of the micro screw feeder (1) is connected to a material storage box (17), and a frequency converter regulating motor (18) is provided on the micro screw feeder (1).

5. The nylon 66 salt melting point measuring device according to claim 4, characterized in that: The hot melt sealing machine (2) is provided with a heating plate (19), and the hot melt sealing machine (2) is also provided with a heating plate temperature controller (20), a sealing pressure regulator (21) and a sealing time timer (22).

6. The nylon 66 salt melting point measuring device according to claim 5, characterized in that: The electromagnetic heating device (7) is provided with a heating power controller (23); the heating tank (8) contains heat transfer oil; and the number of the optical fiber sensors (10) is more than one group.

7. The nylon 66 salt melting point measuring device according to claim 6, characterized in that: The invention also includes a control system, which is electrically connected to the temperature sensor (9), the optical fiber sensor (10), the automatic telescopic rod (13), the driving motor (15), the angle adjuster (16), the inverter adjustment motor (18), the heating plate temperature controller (20), the sealing pressure regulator (21), the sealing time timer (22) and the heating power controller (23).

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