Plastic tension testing machine with easily-adjusted clamp

Abstract

The utility model relates to the technical field of plastics, in particular to a plastic tension testing machine with an easily-adjustable clamp, which comprises a box body, an operation box is fixedly mounted at the top of the box body, a dust cleaning mechanism is arranged in the box body, the dust cleaning mechanism comprises an air spraying groove for cleaning dust, and a clamping mechanism is arranged in the operation box. The clamping mechanism comprises a first clamping block used for clamping, a moving mechanism is further arranged in the operation box, by arranging an air spraying groove, a partition plate, a draught fan frame, a draught fan, a drawing groove, a collecting box and the like, the draught fan is started to supply air, air enters the air spraying box through a plurality of air inlet holes and then is sprayed out through the air spraying groove, and therefore the air spraying effect is improved. The crushed aggregates in the operation box are blown into the collection box, so that the dust cleaning function is realized, the crushed aggregates are prevented from being attached to a sample or a clamp, the actual stress condition and the measurement size of the sample are prevented from being changed, and the test accuracy is effectively ensured.

Description

Technical Field

[0001] This application relates to the technical field of plastics, and in particular to a plastic tensile testing machine with easily adjustable clamps. Background Technology

[0002] Plastics, generally referring to plastic materials, are polymer materials made from synthetic resins. By adding various additives (such as plasticizers, stabilizers, pigments, fillers, etc.), their performance and processing characteristics are improved. Due to their lightweight, corrosion resistance, good insulation, and ease of processing, plastic materials are widely used in various industries.

[0003] A search revealed Chinese Patent Publication No. CN213022589U, which discloses an electronic tensile testing machine for plastic testing. The machine includes placing the test item in the middle of a clamping plate, simultaneously moving a short rod to the left to compress a spring. After releasing the rod, the spring returns to its original position, pressing the test item to the right, thus fixing the clamping plate in the left-right direction. By rotating a knob, a threaded rotating rod is turned, causing the upper and lower clamping plates to press against a long rod, thus fixing the long rod in the up-down direction. This design achieves simple operation and stable clamping.

[0004] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: it is difficult to clean the remaining dust and debris; during testing, when the plastic reaches its ultimate strength, it will suddenly break; if the fracture surface is not neat, some debris may be generated; if the debris cannot be cleaned, it may adhere to the sample or fixture, changing the actual stress condition and measurement dimensions of the sample, and may also cause abnormal stress on the sample during the test, thus causing deviations in the measured tensile force data. Utility Model Content

[0005] To address the problems mentioned in the background section, this application provides a plastic tensile testing machine with easily adjustable clamps.

[0006] This application provides a plastic tensile testing machine with easily adjustable clamps, comprising a housing, an operating box fixedly installed on the top of the housing, a dust cleaning mechanism inside the housing, the dust cleaning mechanism including a spray channel for dust cleaning, a clamping mechanism inside the operating box including a clamping block for clamping, and a moving mechanism inside the operating box including a driven rod for maintaining stability.

[0007] Optionally, the dust removal mechanism includes a partition fixedly installed on the inner wall of the box, an air inlet slot is provided through one side of the partition, a fan frame is fixedly installed on one side of the partition, and multiple fans are fixedly installed at the bottom of the fan frame, with the multiple fans arranged in an array.

[0008] Optionally, a pull-out groove is provided on one side of the housing, and a collection box is slidably connected inside the pull-out groove. An installation groove is provided on one side of the collection box, and a filter screen is fixedly installed inside the installation groove. The collection box is connected to the air inlet groove and the installation groove.

[0009] Optionally, an air spray box is fixedly installed on the inner bottom wall of the control box, and an air inlet is provided at the bottom of the air spray box. The air spray boxes are connected to each other through the air inlet, and the air spray groove is opened on one side of the air spray box.

[0010] Optionally, the clamping mechanism includes a U-shaped block disposed inside the operating box. The top of the U-shaped block has a threaded hole, and a threaded post is threadedly connected inside the threaded hole. A knob is fixedly connected to the top of the threaded post, and the clamping block is fixedly connected to the bottom of the threaded post.

[0011] Optionally, the moving mechanism includes a threaded rod 1 rotatably connected to both sides of the inner wall of the operating box, and a threaded rod 2 rotatably connected to both sides of the inner wall of the operating box. The threaded rod 2 is arranged opposite to the threaded rod 1. A motor box 1 is fixedly installed on one side of the operating box, and a motor 1 is fixedly installed on the inner wall of the motor box 1. The motor 1 is connected to the threaded rod 1. A motor box 2 is also fixedly installed on one side of the operating box, and a motor 2 is fixedly installed on the inner wall of the motor box 2. The motor 2 is connected to the threaded rod 2.

[0012] Optionally, the operating box is provided with a sliding block one and a sliding block two. The sliding block two and the sliding block one are arranged opposite to each other. The sliding block one is threadedly connected to the threaded rod one, and the sliding block two is meshed with the threaded rod two. The driven rod is fixedly installed on both sides of the inner wall of the operating box. The driven rod is located between the threaded rod one and the threaded rod two. The sliding block one and the sliding block two are slidably connected to the driven rod.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] 1. This utility model, by setting up components such as an air spray channel, partition, fan frame, fan, pull-out channel, collection box, filter screen, air spray box, air inlet, and air inlet channel, enables dust removal by starting the fan to supply air. The air enters the interior of the air spray box through multiple air inlets and is then sprayed out through the air spray channel, causing the debris inside the control box to be blown into the interior of the collection box. This achieves the dust removal function, prevents debris from adhering to the sample or fixture, and avoids changing the actual stress condition and measurement dimensions of the sample, thus effectively ensuring the accuracy of the test.

[0015] 2. This utility model, by setting up components such as a U-shaped block, threaded hole, threaded column, knob, and clamping block one, allows the test sample to be placed in the machine. Then, by manually turning the knob, the threaded column rotates inside the threaded hole, which in turn lowers the clamping block one, thus clamping the test sample and preventing the test from being affected by shaking or displacement, effectively improving stability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0017] Figure 2 This is a cross-sectional structural diagram of the box body in an embodiment of this application;

[0018] Figure 3 This is an embodiment of the present application. Figure 2 Enlarged view of structure A in the image;

[0019] Figure 4 This is a cross-sectional structural diagram of the operation box in an embodiment of this application.

[0020] Reference numerals: 1. Housing; 10. Control box; 2. Dust removal mechanism; 20. Air spray duct; 21. Partition; 22. Fan frame; 23. Fan; 24. Pull-out slot; 25. Collection box; 26. Filter screen; 27. Air spray box; 28. Air inlet; 29. ​​Air inlet duct; 3. Clamping mechanism; 31. U-shaped block; 32. Threaded hole; 33. Threaded column; 34. Knob; 35. Clamping block one; 4. Moving mechanism; 41. Threaded rod one; 42. Motor box one; 43. Motor one; 44. Driven rod; 45. Threaded rod two; 46. Motor box two; 47. Motor two; 48. Sliding block one; 49. Sliding block two. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1 —4. This application will be described in further detail.

[0022] This application discloses a plastic tensile testing machine with easily adjustable clamps.

[0023] like Figure 1 As shown, a plastic tensile testing machine with easily adjustable clamps includes a housing 1, an operation box 10 fixedly installed on the top of the housing 1, and a dust removal mechanism 2 provided inside the housing 1. The dust removal mechanism 2 includes a spray channel 20 for dust removal.

[0024] Please see Figure 2The dust removal mechanism 2 includes a partition 21 fixedly installed on the inner wall of the housing 1. An air inlet slot 29 is opened through one side of the partition 21. A fan frame 22 is fixedly installed on one side of the partition 21. Multiple fans 23 are fixedly installed at the bottom of the fan frame 22. The multiple fans 23 are arranged in an array. The fan frame 22 is used to fix the multiple fans 23 to prevent the multiple fans 23 from vibrating during operation and falling off. The multiple fans 23 are used to blow and collect debris.

[0025] Please see Figure 2 A pull-out groove 24 is provided on one side of the housing 1. A collection box 25 is slidably connected inside the pull-out groove 24. An installation groove is provided on one side of the collection box 25. A filter screen 26 is fixedly installed inside the installation groove. The collection box 25 is connected to the installation groove through an air inlet groove 29. By manually pulling the collection box 25, the collection box 25 slides inside the pull-out groove 24, thereby pulling out the collection box 25 for cleaning the inside of the collection box 25.

[0026] Please see Figure 2 An air spray box 27 is fixedly installed on the inner bottom wall of the control box 10. An air inlet 28 is provided at the bottom of the air spray box 27. The air spray boxes 27 are connected to each other through the air inlet 28. An air spray channel 20 is opened on one side of the air spray box 27. By starting the fan 23, air is supplied. The air enters the interior of the air spray box 27 through multiple air inlets 28 and is then sprayed out through the air spray channel 20, which blows the debris inside the control box 10 into the interior of the collection box 25, realizing the dust removal function and preventing debris from adhering to the sample or fixture, changing the actual stress condition and measurement size of the sample, and effectively ensuring the accuracy of the test.

[0027] The operating box 10 is equipped with a clamping mechanism 3, which includes a clamping block 35 for clamping.

[0028] Please see Figure 3 The clamping mechanism 3 includes a U-shaped block 31 installed inside the operating box 10. The top of the U-shaped block 31 has a threaded hole 32, and a threaded post 33 is threadedly connected inside the threaded hole 32. A knob 34 is fixedly connected to the top of the threaded post 33. A clamping block 35 is fixedly connected to the bottom of the threaded post 33. By placing the test sample in the box and manually turning the knob 34, the threaded post 33 is rotated inside the threaded hole 32, thereby causing the clamping block 35 to descend. This clamps the test sample, preventing shaking or displacement from affecting the normal testing process and effectively improving stability.

[0029] The operating box 10 is also equipped with a moving mechanism 4, which includes a driven rod 44 for maintaining stability;

[0030] Please see Figure 4The moving mechanism 4 includes a first threaded rod 41 rotatably connected to both sides of the inner wall of the operating box 10. A second threaded rod 45 is also rotatably connected to both sides of the inner wall of the operating box 10. The second threaded rod 45 is positioned opposite to the first threaded rod 41. A first motor box 42 is fixedly installed on one side of the operating box 10. A first motor 43 is fixedly installed on the inner wall of the first motor box 42 and is connected to the first threaded rod 41. A second motor box 46 is also fixedly installed on one side of the operating box 10. A second motor 47 is fixedly installed on the inner wall of the second motor box 46 and is connected to the second threaded rod 45. Further explanation is needed regarding the connection between the first sliding block 48 and the second threaded rod 45. The connection between the two is a sliding connection, not a threaded connection. The sliding block 49 and the threaded rod 41 are also slidingly connected. During the test, the motor 43 is started to drive the threaded rod 41 to rotate, so that the sliding block 48 moves under the support of the driven rod 44. Then, the motor 47 is started to drive the threaded rod 45 to rotate, so that the sliding block 49 translates. This separates the sliding block 48 and the sliding block 49, so that the test can be carried out. The position can be adjusted in real time according to the actual deformation of the sample to ensure that the tensile force is always applied along the axial direction of the sample and to avoid errors in the test results due to deviations in the tensile force direction.

[0031] Please see Figure 4 The control box 10 is equipped with a sliding block 48 and a sliding block 49. The sliding block 49 and the sliding block 48 are arranged opposite to each other. The sliding block 48 is threadedly connected to the threaded rod 41, and the sliding block 49 is meshed with the threaded rod 45. The driven rod 44 is fixedly installed on both sides of the inner wall of the control box 10. The driven rod 44 is located between the threaded rod 41 and the threaded rod 45. The sliding blocks 48 and 49 are slidably connected to the driven rod 44. The driven rod 44 is used to stabilize the sliding blocks 49 and 48 and prevent the sliding blocks 48 and 49 from changing angles when they move, which could cause skewing and damage to the equipment.

[0032] The dust removal mechanism 2 is installed to clean up debris during testing, preventing debris from adhering to the sample or fixture. The clamping mechanism 3 is installed to clamp the test specimen, preventing shaking or displacement from affecting the normal conduct of the test. The moving mechanism 4 is installed to test the test specimen.

[0033] The implementation principle of a plastic tensile testing machine with easily adjustable clamps according to an embodiment of this application is as follows: A dust removal mechanism 2 is installed to clean debris during testing, preventing debris from adhering to the sample or clamps. A clamping mechanism 3 is installed to clamp the test specimen, preventing shaking or displacement from affecting the normal testing process. A moving mechanism 4 is installed to test the test specimen. A fan frame 22 is installed to fix multiple fans 23, preventing vibration during operation that could cause them to fall off. A blower 23 is used to blow and collect debris. The collection box 25 is manually pulled out by sliding it inside the pull-out groove 24, allowing for cleaning of its interior. By activating the blower 23, air is supplied through multiple air inlets 28 into the spray box 27, and then sprayed out through the spray channel 20, blowing debris from inside the operating box 10 into the box 1 and then into the collection box 25. This achieves a dust removal function, preventing debris from adhering to samples or fixtures. By varying the actual stress and measurement dimensions of the sample, the accuracy of the test is effectively guaranteed. The test sample is placed inside, and then the knob 34 is manually turned to rotate the threaded column 33 inside the threaded hole 32, thereby lowering the clamping block 35. This clamps the test sample, preventing shaking or displacement from affecting the normal testing process and effectively improving stability. Starting motor 43 rotates the threaded rod 41, causing the sliding block 48 to move under the support of the driven rod 44. Then, starting motor 4... 7 drives the threaded rod 45 to rotate, causing the sliding block 49 to translate, thus separating the sliding block 48 and the sliding block 49 for testing. The position can be adjusted in real time according to the actual deformation of the sample to ensure that the tension is always applied along the axial direction of the sample, avoiding errors in the test results due to deviations in the direction of the tension. The driven rod 44 is used to stabilize the sliding block 49 and the sliding block 48, preventing angular changes during the movement of the sliding block 48 and the sliding block 49, which could lead to skewness and damage to the equipment.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A plastic tensile testing machine with adjustable clamps, comprising a box (1), characterized in that: The top of the box (1) is fixedly installed with an operation box (10), the inside of the box (1) is provided with a dust cleaning mechanism (2), the dust cleaning mechanism (2) comprises a wind slot (20) for dust cleaning, the inside of the operation box (10) is provided with a clamping mechanism (3), the clamping mechanism (3) comprises a clamping block one (35) for clamping, the inside of the operation box (10) is also provided with a moving mechanism (4), the moving mechanism (4) comprises a driven rod (44) for keeping stable.

2. The plastic tensile testing machine of claim 1, wherein: The dust cleaning mechanism (2) comprises a partition (21) fixedly installed on the inner wall of the box (1), a wind inlet slot (29) is formed through one side of the partition (21), a fan rack (22) is fixedly installed on one side of the partition (21), a plurality of fans (23) are fixedly installed on the bottom of the fan rack (22), and the plurality of fans (23) are arranged in an array.

3. The fixture-adjustable plastic tensile testing machine of claim 2, wherein: A pull-out slot (24) is formed in one side of the box (1), a collection box (25) is slidably connected in the pull-out slot (24), an installation slot is formed in one side of the collection box (25), a filter screen (26) is fixedly installed in the installation slot, and the collection box (25) is connected in communication between the wind inlet slot (29) and the installation slot.

4. The fixture-adjustable plastic tensile testing machine of claim 3, wherein: A wind spraying box (27) is fixedly installed on the inner bottom wall of the operation box (10), an air inlet hole (28) is formed in the bottom of the wind spraying box (27), the wind spraying box (27) is connected in communication between the air inlet holes (28), and the wind spraying slot (20) is formed in one side of the wind spraying box (27).

5. The fixture-adjustable plastic tensile testing machine of claim 1, wherein: The clamping mechanism (3) comprises a U-shaped block (31) arranged in the operation box (10), a threaded hole (32) is formed in the top of the U-shaped block (31), a threaded column (33) is threadedly connected in the threaded hole (32), a knob (34) is fixedly connected to the top end of the threaded column (33), and the clamping block one (35) is fixedly connected to the bottom end of the threaded column (33).

6. The easy-adjustable plastic tensile testing machine of claim 1, wherein: The moving mechanism (4) comprises a threaded rod one (41) rotatably connected to the inner walls of the operation box (10), threaded rod two (45) is also rotatably connected to the inner walls of the operation box (10), the threaded rod two (45) is oppositely arranged between the threaded rod one (41), a motor box one (42) is fixedly installed on one side of the operation box (10), a motor one (43) is fixedly installed on the inner side wall of the motor box one (42), the motor one (43) is connected with the threaded rod one (41), a motor box two (46) is also fixedly installed on one side of the operation box (10), a motor two (47) is fixedly installed on the inner side wall of the motor box two (46), and the motor two (47) is connected with the threaded rod two (45).

7. The fixture-adjustable plastic tensile testing machine of claim 6, wherein: The inside of the operation box (10) is provided with sliding block one (48), the inside of the operation box (10) is provided with sliding block two (49), the relative arrangement between sliding block two (49) and sliding block one (48), the threaded connection between sliding block one (48) and threaded rod one (41), the meshing connection between sliding block two (49) and threaded rod two (45), the driven rod (44) is fixedly installed on the inner wall of the operation box (10), the driven rod (44) is located between threaded rod one (41) and threaded rod two (45), the sliding connection between sliding block one (48) and sliding block two (49) and the driven rod (44).

Images