Rapid quality detection device for polyethylene profile

Abstract

The utility model belongs to the technical field of polyethylene profile detection, and particularly relates to a polyethylene profile quality fast detection device which comprises a base. A first T-shaped groove is formed in the side wall of the base; the groove wall of the first T-shaped groove is slidably connected with a pair of first T-shaped blocks. The side wall of the first T-shaped block is fixedly connected with a first L-shaped block; the side wall of the first L-shaped block is arranged to be a fillet. The side wall of the first L-shaped block is slidably connected with a pair of symmetrical limiting blocks. The side wall of the limiting block is arranged to be an inclined face. An adjusting piece is arranged between the pair of limiting blocks; the side wall of the base is fixedly connected with an inverted L-shaped rod; the side wall of the inverted-L-shaped rod is in threaded connection with a first threaded rod. One end of the first threaded rod is rotationally connected with a balance block. The side walls of the two sides of the balance block are both slidably connected with balance rods. The profile can naturally slide to the center of the L-shaped block along with the inclined plane, and when the profile is pressed and bent, transverse displacement caused by smooth surface can be reduced, and the accuracy of test data is improved.

Description

Technical Field

[0001] This utility model relates to the field of polyethylene profile testing technology, specifically a rapid quality testing device for polyethylene profiles. Background Technology

[0002] Polyethylene (PE) is a thermoplastic resin formed by the polymerization of ethylene monomers. It has the characteristics of low temperature resistance (-100 to -70°C), acid and alkali resistance, and excellent electrical insulation. It is divided into three categories: linear low-density polyethylene (LLDPE), low-density polyethylene (LDPE), and high-density polyethylene (HDPE). It is milky white in appearance, and its thin cross section is translucent. It feels like wax.

[0003] When performing bending tests on polyethylene profiles, since polyethylene is a plastic material, it is necessary to allow it to deform freely to obtain accurate mechanical property data. Rigid fixation may lead to local stress concentration or unnatural fracture modes, thus affecting the accuracy of the test results. However, the smooth surface of polyethylene makes it easy for it to undergo lateral displacement on the fixture during bending, resulting in uneven stress and thus causing deviations in the test data. Therefore, a rapid quality inspection device for polyethylene profiles is proposed to address the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, when performing bending tests on polyethylene profiles, since polyethylene is a plastic material, it is necessary to allow it to deform freely to obtain accurate mechanical property data. Rigid fixation may lead to local stress concentration or unnatural fracture modes, thus affecting the accuracy of the test results. However, the smooth surface of polyethylene makes it prone to lateral displacement on the fixture during bending, resulting in uneven stress and thus causing deviations in the test data. This utility model proposes a rapid quality inspection device for polyethylene profiles.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A polyethylene profile quality rapid inspection device of this utility model includes a base; a first T-shaped groove is provided on the side wall of the base; a pair of first T-shaped blocks are slidably connected to the groove wall of the first T-shaped groove; a first L-shaped block is fixedly connected to the side wall of the first T-shaped block; the side wall of the first L-shaped block is rounded; a pair of symmetrical limiting blocks are slidably connected to the side wall of the first L-shaped block; the side wall of the limiting block is inclined; an adjusting member is provided between the pair of limiting blocks; the side wall of the base is fixedly connected to the groove wall of the first T-shaped block. The device is equipped with an inverted L-shaped rod; a first threaded rod is threadedly connected to the side wall of the inverted L-shaped rod; a balance block is rotatably connected to one end of the first threaded rod; balance rods are slidably connected to both side walls of the balance block; the balance rods are fixedly connected to the inverted L-shaped rod; a pressure head is provided on the side wall of the balance block; a locking component is provided on the side wall of the first L-shaped block. Through the inclined surface of the limiting block, when the operator places the profile, the profile will naturally slide to the center of the L-shaped block with the inclined surface. When subjected to pressure and bending, it can also reduce lateral displacement caused by the smooth surface and improve the accuracy of test data.

[0006] Preferably, the adjusting component includes a bidirectional threaded rod; a connecting block is fixedly connected to the sidewall of each pair of limiting blocks; a bidirectional threaded rod is threadedly connected between the pair of connecting blocks; a fixing block is rotatably connected to the outer circular wall of the bidirectional threaded rod; the fixing block is fixedly connected to the first L-shaped block, which facilitates the adjustment of the width between the pair of limiting blocks to adapt to the width of different profiles.

[0007] Preferably, the locking component includes a first rack; the first rack is fixedly connected to the side wall of the first L-shaped block; a connecting strip is fixedly connected to the side wall of the base; a pair of limiting rods are fixedly connected to the side wall of the connecting strip; a second rack is slidably connected to one end of the limiting rod; the first rack and the second rack are matched; a second L-shaped block is fixedly connected to the side wall of the connecting strip; a second threaded rod is threadedly connected to the side wall of the second L-shaped block; a pressing block is rotatably connected to the side wall of the second threaded rod; the side wall of the pressing block is set as an inclined surface, so that the second rack will move upward, so that the teeth of the second rack are in a meshing state with the teeth of the first rack, so that the first L-shaped block is fixed on the base.

[0008] Preferably, the side wall of the first L-shaped block is provided with an L-shaped groove; a Z-shaped block is placed in the groove of the L-shaped groove; a support block is fixed to the side wall of the Z-shaped block; the side wall of the support block is provided with an arc-shaped groove. By installing support blocks with arc-shaped grooves of different sizes on the first L-shaped block, bending detection of cylindrical profiles of different diameters can be achieved.

[0009] Preferably, the side wall of the pressure head is provided with a second T-shaped groove; the side wall of the second T-shaped groove is provided with a third T-shaped groove; a magnetic block is fixedly connected to the bottom of the third T-shaped groove; a second T-shaped block is placed on the wall of the third T-shaped groove; the second T-shaped block has magnetic force; the second T-shaped block and the magnetic block are attracted by magnetic force; the second T-shaped block is fixedly connected to the balance block, which facilitates the operator to change the corresponding pressure head for different profiles for testing.

[0010] Preferably, one end of the first threaded rod, the second threaded rod, and the bidirectional threaded rod is fixedly connected to a handle, which allows the operator to operate more smoothly and quickly rotate the threaded rod by hand to complete the clamping or loosening operation, eliminating the need for tool assistance.

[0011] The advantages of this utility model are:

[0012] 1. By using the inclined surface of the limiting block, when the operator places the profile, the profile will naturally slide to the center of the L-shaped block along the inclined surface. When it is bent under pressure, it can also reduce the lateral displacement caused by the smooth surface and improve the accuracy of test data.

[0013] 2. The inclined surface of the extrusion block will press the second rack, causing the second rack to move upward. This puts the teeth of the second rack into engagement with the teeth of the first rack, thus fixing the first L-shaped block on the base. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of the utility model;

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 This is a partial sectional view of the utility model.

[0018] Figure 4 This is a partial structural diagram of the utility model;

[0019] Figure 5 for Figure 4 Enlarged view at point B in the middle;

[0020] Figure 6 for Figure 4 Enlarged view at point C;

[0021] Figure 7 This is a partial sectional view of the pressure head.

[0022] In the diagram: 1. Base; 2. First T-slot; 3. First T-block; 4. First L-block; 5. Limiting block; 6. Inverted L-shaped rod; 7. First threaded rod; 8. Balance block; 9. Balance rod; 10. Pressure head; 11. Bidirectional threaded rod; 12. Connecting block; 13. Fixing block; 14. First rack; 15. Connecting strip; 16. Limiting rod; 17. Second rack; 18. Second L-block; 19. Second threaded rod; 20. Extrusion block; 21. L-slot; 22. Z-block; 23. Support block; 24. Arc-shaped groove; 25. Second T-slot; 26. Third T-slot; 27. Magnetic block; 28. Second T-block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figure 1-7As shown, a rapid quality inspection device for polyethylene profiles includes a base 1; a first T-shaped groove 2 is provided on the side wall of the base 1; a pair of first T-shaped blocks 3 are slidably connected to the groove wall of the first T-shaped groove 2; a first L-shaped block 4 is fixedly connected to the side wall of the first T-shaped block 3; the side wall of the first L-shaped block 4 is rounded; a pair of symmetrical limiting blocks 5 are slidably connected to the side wall of the first L-shaped block 4; the side wall of the limiting block 5 is inclined; an adjusting component is provided between the pair of limiting blocks 5; an inverted L-shaped rod 6 is fixedly connected to the side wall of the base 1; a first threaded rod 7 is threadedly connected to the side wall of the inverted L-shaped rod 6; a balance block 8 is rotatably connected to one end of the first threaded rod 7; a balance rod 9 is slidably connected to both side walls of the balance block 8; the balance rod 9 is fixedly connected to the inverted L-shaped rod 6; a pressure head 10 is provided on the side wall of the balance block 8; the first L-shaped rod 6 is fixedly connected to the side wall of the base 1; a pair of first T-shaped blocks 3 are slidably connected to the side wall of the first T-shaped groove 2; a pair of first T-shaped blocks 3 are slidably connected to the side wall of the first T-shaped groove 2; a pair of first L-shaped blocks 3 are fixedly connected to the side wall of the first L-shaped rod 6; a pair of first L-shaped blocks 4 are slidably ... The side wall of the L-shaped block 4 is equipped with a locking component. During operation, the first T-shaped block 3 slides in the first T-shaped groove 2, thereby driving the first L-shaped block 4 to move. After the operator adjusts the pair of first L-shaped blocks 4 to a suitable spacing for the polyethylene profile with the pressure head 10 as the center, the profile is supported by the two first L-shaped blocks 4 to form a span support point. The pressure head 10 is at the center point of the span. The operator then rotates the first threaded rod 7, causing the first threaded rod 7 to drive the pressure head 10 downward through the balance block 8, so that the pressure head 10 presses the profile. When the profile bends, the operator records the deformation curve. Through the inclined surface of the limiting block 5, when the operator places the profile, the profile will naturally slide to the center of the L-shaped block with the inclined surface. When bent under pressure, it can also reduce the lateral displacement caused by the smooth surface and improve the accuracy of the test data.

[0025] The adjusting component includes a bidirectional threaded rod 11; a connecting block 12 is fixedly connected to the side wall of each pair of limiting blocks 5; a bidirectional threaded rod 11 is threadedly connected between the pair of connecting blocks 12; a fixing block 13 is rotatably connected to the outer circular wall of the bidirectional threaded rod 11; the fixing block 13 is fixedly connected to the first L-shaped block 4; during operation, the operator rotates the bidirectional threaded rod 11, and the rotation of the bidirectional threaded rod 11 drives the pair of limiting blocks 5 to move closer or further away from each other at the same time, so as to facilitate the adjustment of the width between the pair of limiting blocks 5 to adapt to the width of different profiles.

[0026] The locking component includes a first rack 14; the first rack 14 is fixedly connected to the side wall of the first L-shaped block 4; a connecting strip 15 is fixedly connected to the side wall of the base 1; a pair of limiting rods 16 are fixedly connected to the side wall of the connecting strip 15; a second rack 17 is slidably connected to one end of the limiting rod 16; the first rack 14 and the second rack 17 are matched; a second L-shaped block 18 is fixedly connected to the side wall of the connecting strip 15; a second threaded rod 19 is threadedly connected to the side wall of the second L-shaped block 18; a pressing block 20 is rotatably connected to the side wall of the second threaded rod 19; the side wall of the pressing block 20 is set as an inclined surface; During operation, when the first L-shaped block 4 moves on the base 1, it will drive the first rack 14 to move. When it is necessary to fix the movement of the first L-shaped block 4 on the base 1, the operator can rotate the second threaded rod 19. The second threaded rod 19 will drive the pressing block 20 to press between the second rack 17 and the connecting bar 15. The inclined surface of the pressing block 20 will press the second rack 17, causing the second rack 17 to move upward. In this way, the teeth of the second rack 17 are engaged with the teeth of the first rack 14, so that the first L-shaped block 4 is fixed on the base 1.

[0027] The first L-shaped block 4 has an L-shaped groove 21 on its side wall; a Z-shaped block 22 is placed in the groove 21; a support block 23 is fixed to the side wall of the Z-shaped block 22; the side wall of the support block 23 has an arc-shaped groove 24; during operation, the operator inserts the Z-shaped block 22 into the L-shaped groove 21 on the first L-shaped block 4, and then moves the Z-shaped block 22 downward so that the support block 23 is on the first L-shaped block 4. By installing support blocks 23 with arc-shaped grooves 24 of different sizes on the first L-shaped block 4, bending detection of cylindrical profiles of different diameters can be achieved.

[0028] The side wall of the pressure head 10 is provided with a second T-shaped groove 25; the side wall of the second T-shaped groove 25 is provided with a third T-shaped groove 26; a magnetic block 27 is fixedly connected to the bottom of the third T-shaped groove 26; a second T-shaped block 28 is placed on the wall of the third T-shaped groove 26; the second T-shaped block 28 has magnetic force; the second T-shaped block 28 and the magnetic block 27 are magnetically attracted; the second T-shaped block 28 is fixedly connected to the balance block 8; during operation, after the second T-shaped block 28 is inserted from the second T-shaped groove 25 into the third T-shaped groove 26, the magnetic attraction between the magnetic block 27 and the second T-shaped block 28 will cause the second T-shaped block 28 to sink into the third T-shaped groove 26, so that the pressure head 10 can be quickly installed and removed on the balance block 8, which is convenient for operators to replace the corresponding pressure head 10 for different profiles for testing.

[0029] A handle is fixed to one end of the first threaded rod 7, the second threaded rod 19, and the bidirectional threaded rod 11. During operation, the handles on the first threaded rod 7, the second threaded rod 19, and the bidirectional threaded rod 11 allow the operator to operate more smoothly. The threaded rod can be quickly rotated by hand to complete the clamping or loosening operation, eliminating the need for tools.

[0030] Working principle: The first T-shaped block 3 slides within the first T-shaped groove 2, thereby driving the first L-shaped block 4 to move. After the operator adjusts the pair of first L-shaped blocks 4 to a suitable spacing for the polyethylene profile with the pressure head 10 as the center, the profile is supported by the two first L-shaped blocks 4, forming a span support point. The pressure head 10 is at the center point of the span. The operator then rotates the first threaded rod 7, causing it to drive the pressure head 10 downward through the balance block 8, allowing the pressure head 10 to press against the profile. The operator records the deformation curve when the profile bends. Through the inclined surface of the limiting block 5, the profile is controlled when the operator places it. The material will naturally slide to the center of the L-shaped block along the inclined plane. When subjected to pressure and bending, this reduces lateral displacement caused by the smooth surface, improving the accuracy of test data. By rotating the bidirectional threaded rod 11, the operator moves a pair of limiting blocks 5 closer to or further apart, facilitating width adjustment between the limiting blocks 5 to accommodate different profile widths. When the first L-shaped block 4 moves on the base 1, it drives the first rack 14 to move. To fix the movement of the first L-shaped block 4 on the base 1, the operator can rotate the second threaded rod 19, thereby... The pressing block 20 is driven to press between the second rack 17 and the connecting strip 15. The inclined surface of the pressing block 20 presses the second rack 17, causing the second rack 17 to move upward. This puts the teeth of the second rack 17 into engagement with the teeth of the first rack 14, fixing the first L-shaped block 4 on the base 1. Through the L-shaped groove 21 on the first L-shaped block 4, the operator inserts the Z-shaped block 22 into the L-shaped groove 21 and then moves the Z-shaped block 22 downward, so that the support block 23 is placed on the first L-shaped block 4. By installing support blocks 23 with arc grooves 24 of different sizes on the first L-shaped block 4, it is possible to support different straight... For bending tests on cylindrical profiles of different diameters, the second T-block 28 is inserted from the second T-slot 25 into the third T-slot 26. The magnetic attraction between the magnetic block 27 and the second T-block 28 causes the second T-block 28 to sink into the third T-slot 26, allowing the pressure head 10 to be quickly installed and removed from the balance block 8. This facilitates the operator in changing the corresponding pressure head 10 for different profiles. The handles on the first threaded rod 7, the second threaded rod 19, and the bidirectional threaded rod 11 allow the operator to operate more smoothly. The threaded rods can be quickly rotated by hand to complete the clamping or loosening operation, eliminating the need for tools.

[0031] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A polyethylene profile quality rapid detection device, characterized in that: Includes a base (1); the side wall of the base (1) is provided with a first T-shaped groove (2); a pair of first T-shaped blocks (3) are slidably connected to the groove wall of the first T-shaped groove (2); a first L-shaped block (4) is fixedly connected to the side wall of the first T-shaped block (3); the side wall of the first L-shaped block (4) is rounded; a pair of symmetrical limiting blocks (5) are slidably connected to the side wall of the first L-shaped block (4); the side wall of the limiting block (5) is inclined; and a pair of limiting blocks (5) are provided between them. Adjustment component; an inverted L-shaped rod (6) is fixedly connected to the side wall of the base (1); a first threaded rod (7) is threadedly connected to the side wall of the inverted L-shaped rod (6); a balance block (8) is rotatably connected to one end of the first threaded rod (7); a balance rod (9) is slidably connected to both side walls of the balance block (8); the balance rod (9) is fixedly connected to the inverted L-shaped rod (6); a pressure head (10) is provided on the side wall of the balance block (8); a locking component is provided on the side wall of the first L-shaped block (4).

2. The polyethylene profile quality rapid detection device according to claim 1, characterized in that: The adjusting component includes a bidirectional threaded rod (11); a connecting block (12) is fixedly connected to the side wall of each pair of limiting blocks (5); a bidirectional threaded rod (11) is threadedly connected between the pair of connecting blocks (12); a fixing block (13) is rotatably connected to the outer circular wall of the bidirectional threaded rod (11); the fixing block (13) is fixedly connected to the first L-shaped block (4).

3. A polyethylene profile quality quick detection device according to claim 2, characterized in that: The locking component includes a first rack (14); the first rack (14) is fixedly connected to the side wall of the first L-shaped block (4); the connecting strip (15) is fixedly connected to the side wall of the base (1); a pair of limiting rods (16) are fixedly connected to the side wall of the connecting strip (15); a second rack (17) is slidably connected to one end of the limiting rod (16); the first rack (14) and the second rack (17) are matched; a second L-shaped block (18) is fixedly connected to the side wall of the connecting strip (15); a second threaded rod (19) is threadedly connected to the side wall of the second L-shaped block (18); a pressing block (20) is rotatably connected to the side wall of the second threaded rod (19); the side wall of the pressing block (20) is set as an inclined surface.

4. A polyethylene profile quality rapid detection device according to claim 3, characterized in that: The first L-shaped block (4) has an L-shaped groove (21) on its side wall; a Z-shaped block (22) is placed in the groove of the L-shaped groove (21); a support block (23) is fixed to the side wall of the Z-shaped block (22); and an arc-shaped groove (24) is provided on the side wall of the support block (23).

5. A polyethylene profile quality quick inspection device according to claim 4, characterized in that: The side wall of the pressure head (10) is provided with a second T-shaped groove (25); the side wall of the second T-shaped groove (25) is provided with a third T-shaped groove (26); a magnetic block (27) is fixedly connected to the bottom of the third T-shaped groove (26); a second T-shaped block (28) is placed on the wall of the third T-shaped groove (26); the second T-shaped block (28) has magnetic force; the second T-shaped block (28) and the magnetic block (27) are attracted by magnetic force; the second T-shaped block (28) is fixedly connected to the balance block (8).

6. A polyethylene profile quality quick inspection device according to claim 5, characterized in that: A handle is fixed to one end of the first threaded rod (7), the second threaded rod (19), and the bidirectional threaded rod (11).

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