Screw type automatic load loading full-automatic fusion instrument

Abstract

The utility model relates to a screw type automatic load loading full-automatic fusion instrument, which belongs to the field of fusion instruments and comprises a fusion instrument body, and a load applying structure for automatically applying load is arranged on the left side of the fusion instrument body. The load applying structure comprises a mounting frame fixedly connected to the left side of the fusion finger instrument body, a servo motor fixedly connected to the left side of the mounting frame, a transmission rod fixedly connected to an output shaft of the servo motor, a transmission bevel gear fixedly connected to the right end of the transmission rod, and a driven bevel gear engaged to the left side of the top of the transmission bevel gear; the threaded rod is fixedly connected to the inner side of the circle center of the driven bevel gear, the threaded block is in threaded connection to the outer side of the threaded rod, and the four connecting rods are fixedly connected to the upper surface of the threaded block. According to the screw type automatic load loading full-automatic fusion instrument, an automatic transmission mechanism driven by a servo motor is introduced, so that automatic and accurate load application and dynamic adjustment are realized, and the automation degree and data accuracy of testing are remarkably improved.

Description

Technical Field

[0001] The utility model relates to a screw-type automatic load-loading full-automatic finger melting instrument, belonging to the field of finger melting instruments. Background Art

[0002] In materials science and the plastics industry, melt index is a key indicator of the flow properties of plastic materials under specific conditions. It reflects the melt flow and viscosity characteristics of plastics during processing, such as injection molding and extrusion, and is crucial for quality control of plastic products, process optimization, and the development of new materials.

[0003] Melt flow index testers typically use manual loading, where the operator manually rotates a screw or lever to apply a certain amount of pressure to the molten material, simulating the stresses experienced by plastic during processing. However, this method has several drawbacks: First, manual loading cannot guarantee accuracy and consistency across tests, leading to significant errors in test results; second, manual operation is inefficient, making it difficult to meet the demands of large-scale production and R&D testing; and third, manual loading can place a certain amount of physical strain on the operator and pose safety risks. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the utility model provides a screw-type automatic load-loading fully automatic melting finger instrument, which has the advantages of improving the accuracy and efficiency of the test and reducing the dependence on the operator and the labor intensity.

[0005] To achieve the above-mentioned purpose of improving the accuracy and efficiency of testing and reducing the dependence on operators and the labor intensity, the utility model provides the following technical solutions: a screw-type automatic load-loading fully automatic finger melting instrument, comprising a finger melting instrument body, a load application structure for automatically applying a load is provided on the left side of the finger melting instrument body;

[0006] The load applying structure includes a mounting frame fixedly connected to the left side of the melting finger instrument body, a servo motor fixedly connected to the left side of the mounting frame, a transmission rod fixedly connected to the output shaft of the servo motor, a transmission bevel gear fixedly connected to the right end of the transmission rod, a driven bevel gear meshed with the left side of the top of the transmission bevel gear, a threaded rod fixedly connected to the inner side of the center of the driven bevel gear, a threaded block threadedly connected to the outer side of the threaded rod, four connecting rods fixedly connected to the upper surface of the threaded block, a connecting block fixedly connected between the top ends of the four connecting rods, a connecting frame fixedly connected to the right side of the connecting block, a material rod fixedly connected to the inner side of the connecting port of the connecting frame, and a pressure sensor in contact with the top end of the material rod.

[0007] Furthermore, the right end of the transmission rod is movable through the left side wall of the mounting frame and extends to the inner side of the center of the transmission bevel gear and is fixedly connected to the transmission bevel gear. The top end of the threaded rod is rotatably connected to the inner top wall of the mounting frame, and the bottom end of the threaded rod is rotatably connected to the inner bottom wall of the mounting frame.

[0008] Furthermore, a slider is fixedly connected to the left side of the threaded block, and a sliding opening adapted to the slider is provided on the left side wall of the mounting frame, and a sliding rod is slidably connected to the inner side of the slider.

[0009] Furthermore, the upper and lower ends of the sliding rod are bent to the right and fixedly connected to the left side wall of the installation frame.

[0010] Furthermore, the four connecting rods are respectively arranged at the four corners of the upper surface of the threaded block, and the top ends of the connecting rods movably penetrate the inner top wall of the mounting frame and are fixedly connected to the connecting block.

[0011] Furthermore, the pressure sensor is fixedly connected to the inner top wall of the connecting frame, and the bottom end of the material rod extends into the material opening of the melting finger instrument body.

[0012] Furthermore, a motor frame is fixedly connected to the outer side of the servo motor, and the motor frame is fixedly connected to the left side wall of the installation frame.

[0013] Beneficial effects

[0014] Compared with the existing technology, the present invention provides a screw-type automatic load-loading fully automatic finger melting instrument, which has the following beneficial effects:

[0015] This screw-type automatic load-loading fully automatic melt indexer, by introducing an automated transmission mechanism driven by a servo motor, achieves automatic, precise application and dynamic adjustment of loads, significantly improving the degree of automation and data accuracy of the test. In addition, this design also has the advantages of compact structure, simple operation and convenient maintenance, providing a more reliable and efficient solution for the performance testing of molten materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a three-dimensional diagram of the connecting rod, connecting block and connecting frame in the structure of the utility model;

[0018] Figure 3 It is a front view of the utility model.

[0019] In the figure: 1. Melting finger instrument body; 2. Mounting frame; 3. Servo motor; 301, motor frame; 4. Transmission rod; 5. Transmission bevel gear; 6. Driven bevel gear; 7. Threaded rod; 8. Threaded block; 9. Connecting rod; 10. Connecting block; 11. Connecting frame; 12. Material rod; 13. Pressure sensor; 14. Slider; 15. Sliding rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figures 1 to 3 A screw-type automatic load-loading fully automatic finger melting instrument comprises a finger melting instrument body 1, and a load applying structure for automatically applying a load is provided on the left side of the finger melting instrument body 1.

[0022] like Figure 1 As shown, the load application structure includes a mounting frame 2 fixedly connected to the left side of the melting finger instrument body 1, a servo motor 3 fixedly connected to the left side of the mounting frame 2, a transmission rod 4 fixedly connected to the output shaft of the servo motor 3, a transmission bevel gear 5 fixedly connected to the right end of the transmission rod 4, a driven bevel gear 6 meshed with the left side of the top of the transmission bevel gear 5, a threaded rod 7 fixedly connected to the inner side of the center of the driven bevel gear 6, a threaded block 8 threadedly connected to the outer side of the threaded rod 7, four connecting rods 9 fixedly connected to the upper surface of the threaded block 8, a connecting block 10 fixedly connected between the top ends of the four connecting rods 9, a connecting frame 11 fixedly connected to the right side of the connecting block 10, a material rod 12 fixedly connected to the inner side of the connecting port of the connecting frame 11, and a pressure sensor 13 in contact with the top end of the material rod 12.

[0023] It should be noted that the right end of the transmission rod 4 movably passes through the left side wall of the mounting frame 2 and extends to the inner side of the center of the transmission bevel gear 5 and is fixedly connected to the transmission bevel gear 5. The top end of the threaded rod 7 is rotatably connected to the inner top wall of the mounting frame 2, and the bottom end of the threaded rod 7 is rotatably connected to the inner bottom wall of the mounting frame 2.

[0024] A slider 14 is fixedly connected to the left side of the threaded block 8 , and a sliding opening adapted to the slider 14 is opened on the left side wall of the mounting frame 2 , and a sliding rod 15 is slidably connected to the inner side of the slider 14 .

[0025] The upper and lower ends of the slide bar 15 are bent to the right and fixedly connected to the left side wall of the installation frame 2 .

[0026] Four connecting rods 9 are respectively arranged at the four corners of the upper surface of the threaded block 8 . The top ends of the connecting rods 9 movably penetrate the inner top wall of the mounting frame 2 and are fixedly connected to the connecting block 10 .

[0027] The pressure sensor 13 is fixedly connected to the inner top wall of the connecting frame 11 , and the bottom end of the material rod 12 extends into the material opening of the melting finger instrument body 1 .

[0028] A motor frame 301 is fixedly connected to the outer side of the servo motor 3 , and the motor frame 301 is fixedly connected to the left side wall of the installation frame 2 .

[0029] The working principle of the above embodiment is:

[0030] When the test starts, the melt index instrument body 1 is started and preheated to the set temperature, and the molten material is injected into the material port. Then, the servo motor 3 is started. The servo motor 3 receives the instruction from the control system and starts to operate at the preset speed and torque. Its output shaft is directly connected to the transmission rod 4. Through the rotation of the transmission rod 4, the power is transmitted to the transmission bevel gear 5. The transmission bevel gear 5 is tightly meshed with the driven bevel gear 6 to achieve vertical conversion of the rotational motion, thereby causing the rotation of the driven bevel gear 6 to drive the threaded rod 7 inside its center to rotate synchronously. Since the threaded rod 7 is threadedly connected to the threaded block 8, its rotational motion is converted into the linear motion of the threaded block 8 along the threaded rod 7;

[0031] Driven by threaded rod 7, threaded block 8 moves along its axis, transmitting this linear motion to connecting block 10 and connecting frame 11 via four connecting rods 9. Rod 12, fixedly connected to connecting frame 11, then moves downward. The top of rod 12 then applies pressure to pressure sensor 13. As threaded block 8 continues to move, the load applied by rod 12 on the molten material gradually increases. Pressure sensor 13 monitors the pressure applied by rod 12 on the molten material in real time, converting the pressure value into an electrical signal and transmitting it to the control system. The control system precisely controls and dynamically adjusts the load by adjusting the speed and direction of rotation of servo motor 3 according to a preset load curve or set value. Based on the feedback signal from pressure sensor 13, the control system comprehensively analyzes and adjusts test parameters to ensure the stability and accuracy of the test process. All test data is recorded in real time and can be used for subsequent data analysis, report generation, and quality control.

[0032] The electrical components mentioned in this article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device that controls a computer, etc., and the existing public power connection technology is not described in detail in this article.

[0033] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screw-type automatic load-loading fully automatic finger melting instrument, comprising a finger melting instrument body (1), characterized in that: A load applying structure for automatically applying a load is provided on the left side of the finger melting instrument body (1); The load applying structure comprises a mounting frame (2) fixedly connected to the left side of the finger melting instrument body (1), a servo motor (3) fixedly connected to the left side of the mounting frame (2), a transmission rod (4) fixedly connected to the output shaft of the servo motor (3), a transmission bevel gear (5) fixedly connected to the right end of the transmission rod (4), a driven bevel gear (6) meshed with the left side of the top of the transmission bevel gear (5), a threaded rod (7) fixedly connected to the inner side of the center of the driven bevel gear (6), a threaded block (8) threadedly connected to the outer side of the threaded rod (7), four connecting rods (9) fixedly connected to the upper surface of the threaded block (8), a connecting block (10) fixedly connected between the top ends of the four connecting rods (9), a connecting frame (11) fixedly connected to the right side of the connecting block (10), a material rod (12) fixedly connected to the inner side of the connecting port of the connecting frame (11), and a pressure sensor (13) in contact with the top end of the material rod (12).

2. A screw-type automatic load-loading fully automatic finger melting instrument according to claim 1, characterized in that: The right end of the transmission rod (4) movably passes through the left side wall of the mounting frame (2) and extends to the inner side of the center of the transmission bevel gear (5) and is fixedly connected to the transmission bevel gear (5). The top end of the threaded rod (7) is rotatably connected to the inner top wall of the mounting frame (2), and the bottom end of the threaded rod (7) is rotatably connected to the inner bottom wall of the mounting frame (2).

3. The screw-type automatic load-loading fully automatic finger melting instrument according to claim 1, characterized in that: The left side of the threaded block (8) is fixedly connected to a slider (14), and the left side wall of the mounting frame (2) is provided with a sliding opening adapted to the slider (14), and the inner side of the slider (14) is slidably connected to a slide rod (15).

4. The screw-type automatic load-loading fully automatic finger melting instrument according to claim 3, characterized in that: The upper and lower ends of the slide rod (15) are bent to the right and fixedly connected to the left side wall of the installation frame (2).

5. The screw-type automatic load-loading fully automatic finger melting instrument according to claim 1, characterized in that: The four connecting rods (9) are respectively arranged at the four corners of the upper surface of the threaded block (8), and the top ends of the connecting rods (9) movably penetrate the inner top wall of the mounting frame (2) and are fixedly connected to the connecting block (10).

6. The screw-type automatic load-loading fully automatic finger melting instrument according to claim 1, characterized in that: The pressure sensor (13) is fixedly connected to the inner top wall of the connecting frame (11), and the bottom end of the material rod (12) extends into the material opening of the melting finger instrument body (1).

7. The screw-type automatic load-loading fully automatic finger melting instrument according to claim 1, characterized in that: The outer side of the servo motor (3) is fixedly connected to a motor frame (301), and the motor frame (301) is fixedly connected to the left side wall of the installation frame (2).

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