PE pipe solution flow index tester
By introducing movement, weight placement and limiting mechanisms into the PE tube solution flow index tester, the problems of molten liquid drop and weight loss are solved, and the accuracy and convenience of experimental data are achieved.
Patent Information
- Application Number
- CN202421825616.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-07-31
AI Technical Summary
In the PE tube melt flow index test, the molten liquid is prone to fall off rapidly due to the high heating and melting temperature, resulting in material loss. It is difficult to select and stack weights of different weights, which easily lead to weight loss.
A PE tube solution flow index tester is designed, including a moving mechanism, a weight storage mechanism and a limiting mechanism. The moving mechanism adjusts the height of the heating box to reduce the inertia of the molten liquid. The weight storage mechanism concentrates on the weight storage mechanism to hold weights of different specifications. The limiting mechanism prevents the piston rod from being offset, ensuring accurate experimental data.
Effectively prevent molten liquid from falling and losing, simplify weight access, avoid piston rod tilting, and ensure the accuracy of experimental data.
Smart Images
Figure CN223229421U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of testing devices, in particular to a PE pipe melt flow index tester. Background Art
[0002] PE pipe, also known as polyethylene pipe, is a commonly used plastic pipe material, widely used in water supply systems, drainage systems, gas transmission systems, and other fluid transportation fields. Polyethylene pipe is widely used due to its excellent chemical stability and corrosion resistance.
[0003] The melt flow index (MFI) or melt flow rate (MFR) and melt volume flow rate (MVR) of PE pipe are important indicators for evaluating the fluidity and processing properties of polyethylene materials. These tests are typically performed using a melt flow index tester. However, due to varying measurement performance, high melting temperatures can cause rapid fluid dropout, leading to rapid melt flow and loss of slender material. Different measurement values require different weights, and stacking multiple weights can be difficult to select and can easily lead to weight loss. Therefore, we have developed a PE pipe melt flow index tester. Utility Model Content
[0004] The purpose of the utility model is to provide a PE pipe melt flow index tester to solve the problems raised in the background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PE pipe melt flow index tester, comprising a workbench and a heating box, wherein a plurality of support legs are fixedly installed on the bottom of the workbench, a vertical plate is fixedly installed on one side of the top of the workbench, a moving mechanism for driving the heating box to move up and down is fixedly installed on one side of the vertical plate, the heating box is fixedly installed on one side of the moving mechanism, a weight holding mechanism is fixedly installed on one side of the heating box, and a limiting mechanism is fixedly installed on the top of the heating box to prevent the piston rod from shaking and deviating.
[0006] Furthermore, the moving mechanism includes a slide rail, a slider, a mounting plate, a threaded rod and a drive motor. Two sets of slide rails are fixedly installed on one side of the vertical plate, a slider is slidably connected to one side of the slide rail, a heating box is fixedly installed on one side of the slider, two sets of mounting plates are fixedly installed on one side of the vertical plate, a threaded rod is rotatably connected to the mounting plate, a drive motor is fixedly installed on the top of the mounting plate, the output end of the drive motor is fixedly connected to the threaded rod, a threaded sleeve is threadedly connected to the outer surface of the threaded rod, and one side of the threaded sleeve is fixedly connected to the heating box.
[0007] Furthermore, the limiting mechanism includes a positioning sleeve, an insertion rod and a positioning block. Two sets of positioning sleeves are fixedly installed on the top of the heating box, and two sets of insertion rods inserted into the interior of the positioning sleeves are fixedly connected to the bottom of the positioning block. A limiting groove is provided through the insertion rod.
[0008] Furthermore, the weight holding mechanism includes a fixed plate, a fixed shaft, a connecting seat, a holding plate, a positioning column and a weight body. A fixed shaft is fixedly installed on one side of the heating box through two groups of fixed plates. The outer surface of the fixed shaft is rotatably connected to multiple groups of connecting seats. One side of the connecting seat is fixedly connected to the holding plate. A positioning column is fixedly installed on the top of the holding plate. The weight body is arranged on the outer surface of the positioning column.
[0009] Furthermore, the holding plate is made of iron material, and a magnetic sheet adsorbed to the holding plate is fixedly mounted on one side of the heating box.
[0010] Furthermore, a handle is fixedly installed on one side of the containing plate, and the inner wall of the limiting groove is rotatably connected to multiple groups of balls.
[0011] Compared with the prior art, the present invention has the following beneficial effects: the present invention can adjust the height of the heating box from the workbench by setting a moving mechanism. Such a setting can reduce the falling inertia when the molten liquid falls after cutting, and can prevent objects from falling and being lost. The set weight holding mechanism can centrally hold the weight bodies of different specifications used, and prevent the difficulty in taking the weights and the possibility of losing them. When more experimental materials are added, the piston rod position is higher and can be limited and supported by a limiting mechanism, thereby avoiding tilting and offsetting of the piston rod and ensuring more accurate test data. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the first stereoscopic structure of the utility model;
[0013] Figure 2 This is a schematic diagram of the second stereoscopic structure of the utility model;
[0014] Figure 3 This is a schematic diagram of the top view of the positioning block of the utility model;
[0015] Figure 4 This is a schematic diagram of the three-dimensional structure of the weight holding mechanism of the utility model.
[0016] In the figure: 1 workbench, 2 supporting legs, 3 vertical plate, 4 moving mechanism, 5 heating box, 6 weight holding mechanism, 7 limiting mechanism, 8 slide rail, 9 slider, 10 mounting plate, 11 threaded rod, 12 driving motor, 13 threaded sleeve, 14 positioning sleeve, 15 insertion rod, 16 positioning block, 17 limiting groove, 18 ball bearing, 19 fixing plate, 20 fixing shaft, 21 connecting seat, 22 holding plate, 23 positioning column, 24 weight body, 25 magnetic sheet, 26 handle. DETAILED DESCRIPTION
[0017] 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.
[0018] See also Figure 1 The utility model provides a technical solution: a PE pipe melt flow index tester, comprising a workbench 1 and a heating box 5, wherein a plurality of supporting legs 2 are fixedly installed at the bottom of the workbench 1, a vertical plate 3 is fixedly installed on one side of the top of the workbench 1, a moving mechanism 4 for driving the heating box 5 to move up and down is fixedly installed on one side of the vertical plate 3, the heating box 5 is fixedly installed on one side of the moving mechanism 4, a weight holding mechanism 6 is fixedly installed on one side of the heating box 5, and a limiting mechanism 7 is fixedly installed on the top of the heating box 5 to prevent the piston rod from shaking and deflecting.
[0019] Among them, the height of the heating box 5 from the workbench 1 can be adjusted by setting a moving mechanism 4. Such a setting can reduce the falling inertia when the molten liquid falls after cutting to prevent the object from falling and being lost, and the set weight holding mechanism 6 can centrally hold the weight bodies of different specifications used to prevent the difficulty in taking the weights and the possibility of losing them. When more experimental materials are added, the piston rod position is higher and can be limited and supported by the limiting mechanism 7, thereby avoiding the tilting and deviation of the piston rod and ensuring that the test data is more accurate.
[0020] See also Figure 1 and Figure 2The moving mechanism 4 includes a slide rail 8, a slider 9, a mounting plate 10, a threaded rod 11 and a drive motor 12. Two sets of slide rails 8 are fixedly installed on one side of the vertical plate 3. One side of the slide rail 8 is slidably connected to the slider 9. One side of the slider 9 is fixedly installed with a heating box 5. Two sets of mounting plates 10 are fixedly installed on one side of the vertical plate 3. The mounting plate 10 is rotatably connected to the threaded rod 11. The top of the mounting plate 10 is fixedly installed with a drive motor 12. The output end of the drive motor 12 is fixedly connected to the threaded rod 11. The outer surface of the threaded rod 11 is threadedly connected to a threaded sleeve 13. One side of the threaded sleeve 13 is fixedly connected to the heating box 5.
[0021] Among them, when it is necessary to adjust the height of the heating box 5 from the workbench 1, the drive motor 12 is started, and the drive motor 12 uses the threaded rod 11 to drive the threaded sleeve 13, the heating box 5 and the slider 9 to move up and down along the slide rail 8. This setting can quickly and conveniently adjust the height between the bottom of the heating box 5 and the workbench 1, preventing the material from colliding and falling due to its large inertia after cutting.
[0022] See also Figure 1 and Figure 3 The limiting mechanism 7 includes a positioning sleeve 14, an insertion rod 15 and a positioning block 16. Two groups of positioning sleeves 14 are fixedly installed on the top of the heating box 5. The bottom of the positioning block 16 is fixedly connected with two groups of insertion rods 15 inserted into the interior of the positioning sleeve 14. A limiting groove 17 is formed through the insertion rod 15, and the inner wall of the limiting groove 17 is rotatably connected to multiple groups of balls 18.
[0023] Among them, when the material for the filling test is large, the insertion rod 15 at the bottom of the positioning block 16 is inserted into the inside of the limiting groove 17, and then the piston rod is passed through the limiting groove 17 and inserted into the inside of the heating box 5. In this way, the longer leaked piston rod can be supported and limited, and the rotatably installed ball 18 will not generate a large friction force when the piston rod falls to affect the experimental results.
[0024] See also Figure 1 and Figure 4 The weight holding mechanism 6 includes a fixed plate 19, a fixed shaft 20, a connecting seat 21, a holding plate 22, a positioning column 23 and a weight body 24. A fixed shaft 20 is fixedly installed on one side of the heating box 5 through two groups of fixed plates 19. The outer surface of the fixed shaft 20 is rotatably connected to multiple groups of connecting seats 21. One side of the connecting seat 21 is fixedly connected to the holding plate 22. The top of the holding plate 22 is fixedly installed with a positioning column 23. The weight body 24 is arranged on the outer surface of the positioning column 23. A handle 26 is fixedly installed on one side of the holding plate 22.
[0025] The weight body 24 is placed on the receiving plate 22 and the positioning column 23. When the corresponding weight body 24 needs to be taken out, the handle 26 is turned to rotate the receiving plate 22 and the connecting seat 21 along the fixed axis 20, so that the corresponding weight body 24 can be taken out.
[0026] See also Figure 1 and Figure 4 The holding plate 22 is made of iron material, and a magnetic sheet 25 adsorbed to the holding plate 22 is fixedly installed on one side of the heating box 5. When there is no need to take the weight body 24, the holding plate 22 made of iron material can be adsorbed to the magnetic sheet 25, thereby preventing the holding plate 22 and the connecting seat 21 from rotating along the fixed axis 20 and leaking.
[0027] When in use, first, when it is necessary to adjust the height of the heating box 5 from the workbench 1, start the drive motor 12 to operate, and the drive motor 12 uses the threaded rod 11 to drive the threaded sleeve 13, the heating box 5 and the slide block 9 to move up and down along the slide rail 8. This setting can quickly and conveniently adjust the height between the bottom of the heating box 5 and the workbench 1 to prevent the material from colliding and falling due to the large inertia after cutting. When the material for filling the test is large, insert the insertion rod 15 at the bottom of the positioning block 16 into the inside of the limiting groove 17, and then pass the piston rod through the limiting groove 17 and insert it into the inside of the heating box 5, so that the leakage can be adjusted. The long piston rod is used for support and limitation, and the rotatably installed ball 18 will not generate a large friction force that affects the experimental results when the piston rod falls. The set weight body 24 is placed on the holding plate 22 and the positioning column 23. When it is necessary to take the corresponding weight body 24, the handle 26 is turned to rotate the holding plate 22 and the connecting seat 21 along the fixed axis 20, so that the corresponding weight body 24 can be taken out. When the weight body 24 is not needed to be taken, the holding plate 22 made of iron material can be adsorbed with the magnetic sheet 25, thereby preventing the holding plate 22 and the connecting seat 21 from rotating along the fixed axis 20 and leaking.
[0028] 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 PE pipe melt flow index tester, comprising a workbench (1) and a heating box (5), wherein a plurality of support legs (2) are fixedly mounted on the bottom of the workbench (1), and a vertical plate (3) is fixedly mounted on one side of the top of the workbench (1), characterized in that: A moving mechanism (4) for driving the heating box (5) to move up and down is fixedly installed on one side of the vertical plate (3); the heating box (5) is fixedly installed on one side of the moving mechanism (4); a weight holding mechanism (6) is fixedly installed on one side of the heating box (5); and a limiting mechanism (7) for preventing the piston rod from shaking and deflecting is fixedly installed on the top of the heating box (5).
2. A PE pipe melt flow index tester according to claim 1, characterized in that: The moving mechanism (4) comprises a slide rail (8), a slider (9), a mounting plate (10), a threaded rod (11) and a driving motor (12); two sets of slide rails (8) are fixedly mounted on one side of the vertical plate (3); a slider (9) is slidably connected to one side of the slide rail (8); a heating box (5) is fixedly mounted on one side of the slider (9); two sets of mounting plates (10) are fixedly mounted on one side of the vertical plate (3); a threaded rod (11) is rotatably connected to the mounting plate (10); a driving motor (12) is fixedly mounted on the top of the mounting plate (10); an output end of the driving motor (12) is fixedly connected to the threaded rod (11); a threaded sleeve (13) is threadedly connected to the outer surface of the threaded rod (11); and one side of the threaded sleeve (13) is fixedly connected to the heating box (5).
3. A PE pipe melt flow index tester according to claim 2, characterized in that: The limiting mechanism (7) includes a positioning sleeve (14), an insertion rod (15) and a positioning block (16). Two groups of positioning sleeves (14) are fixedly installed on the top of the heating box (5). Two groups of insertion rods (15) inserted into the interior of the positioning sleeves (14) are fixedly connected to the bottom of the positioning block (16). The insertion rods (15) are provided with limiting grooves (17) extending through them.
4. A PE pipe melt flow index tester according to claim 3, characterized in that: The weight holding mechanism (6) comprises a fixed plate (19), a fixed shaft (20), a connecting seat (21), a holding plate (22), a positioning column (23) and a weight body (24); a fixed shaft (20) is fixedly mounted on one side of the heating box (5) via two sets of fixed plates (19); the outer surface of the fixed shaft (20) is rotatably connected to multiple sets of connecting seats (21); a holding plate (22) is fixedly connected to one side of the connecting seat (21); a positioning column (23) is fixedly mounted on the top of the holding plate (22); and the weight body (24) is arranged on the outer surface of the positioning column (23).
5. A PE pipe melt flow index tester according to claim 4, characterized in that: The holding plate (22) is made of iron material, and a magnetic sheet (25) adsorbed to the holding plate (22) is fixedly mounted on one side of the heating box (5).
6. The PE pipe melt flow index tester according to claim 5, characterized in that: A handle (26) is fixedly mounted on one side of the holding plate (22), and a plurality of groups of balls (18) are rotatably connected to the inner wall of the limiting groove (17).