An IoT-based elastic band tension detection device

Abstract

This invention discloses an elastic band tension detection device based on the Internet of Things, comprising a fixed base. The device is characterized by: a fixed support welded to one side of the fixed base; a retaining roller movably connected between two fixed supports via bearings; a motor mounted on one side of the fixed base; a detection roller movably connected to the output end of the motor via bearings; telescopic cylinders welded to the top and bottom of the fixed base; an electric gripper connected to the output end of the telescopic cylinders via a coupling; gas vent holes evenly distributed on the sidewall of the detection roller; a double-ended screw connected between the inner walls of the two sides of the detection roller via bearings; the double-ended screw being hollow; a central tube welded to the middle of the double-ended screw; a vent hole on the central tube; and a Roots pump connected through both ends of the double-ended screw. This invention is highly practical.

Description

Technical Field

[0001] This invention relates to the field of elastic band testing technology, specifically to an elastic band testing device based on the Internet of Things. Background Technology

[0002] Elastic band elasticity testing typically involves pulling both ends outwards, causing the elastic band to deform and return to its original shape. However, this method only measures tensile strength and cannot detect the stress between different parts of the elastic band through small-scale pulling. The small-scale elasticity and toughness between these parts are crucial factors affecting the durability of elastic bands. This allows many internally defective elastic bands to continue production and packaging, resulting in poor practicality. Therefore, designing a highly practical IoT-based elastic band testing device is essential. Summary of the Invention

[0003] The purpose of this invention is to provide an elastic band force detection device based on the Internet of Things to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an elastic band tension detection device based on the Internet of Things, comprising a fixed base, characterized in that: a fixed support is fixedly installed on one side of the fixed base by welding, a retaining roller is movably connected between the two fixed supports by bearings, a motor is installed on one side of the fixed base, the output end of the motor is movably connected to a detection roller by bearings, telescopic cylinders are fixedly installed on the top and bottom of the fixed base by welding, the output end of the telescopic cylinders is connected to an electric gripper by a coupling, a guide rail is fixedly installed on one side of the fixed base by welding, a calender plate is slidably installed on the guide rail, and the contour of the calender plate is adapted to the detection roller.

[0005] According to the above technical solution, the side wall of the detection roller is uniformly provided with gas vent holes, and the inner walls of the two sides of the detection roller are connected by bearings to a double-headed screw. The double-headed screw is hollow, and a middle tube is fixed to the middle of the double-headed screw by welding. The middle tube is provided with a vent hole.

[0006] According to the above technical solution, the two ends of the double-headed screw are respectively connected to Roots pumps, and the input ends of the two Roots pumps are respectively connected to a high-pressure gas source.

[0007] According to the above technical solution, the double-ended screw is provided with external threads in opposite directions, and sealing discs are screwed to the left and right ends of the double-ended screw.

[0008] According to the above technical solution, the side wall of the sealing disc is uniformly fixed with a winding wheel by welding. A flexible sealing strip is connected to the outside of the winding wheel by winding. The flexible sealing strip is flush with the gas vent hole, and the outlet of the flexible sealing strip covers the inner wall of the gas vent hole. One end of the flexible sealing strip is fixed to the inner wall of the detection roller by adhesive bonding. Flexible magnetic strips are fixed to one side of the flexible sealing strip and the inner wall of the detection roller by adhesive bonding.

[0009] According to the above technical solution, a partition plate is fixed to the middle part of the intermediate tube by welding. The partition plate slides in contact with the inner wall of the detection roller, and the partition plate divides the interior of the detection roller into two chambers of equal volume.

[0010] According to the above technical solution, the sealing disc is provided with a through hole, and a one-way valve is provided inside the through hole. The one-way valve is open from the side to the middle and closed from the middle to the side.

[0011] According to the above technical solution, the working process of the elasticity detection device is as follows:

[0012] S1. Two electric grippers are used to tighten the elastic band, so that the elastic band is tightly attached to the outer wall of the detection roller;

[0013] S2. Start the motor to drive the double-headed screw to rotate, adjust the position of the two sealing discs to fit the width of the elastic band, so that steam cannot be discharged from the covered area;

[0014] S3. Start the Roots pump and discharge high-pressure gas from both pumps to the outside of the test roller, causing the elastic band to bulge and test whether it can return to its original state.

[0015] S4. Restart the Roots pumps to allow the two Roots pumps to absorb gas, which reduces the pressure inside the test roller and causes the elastic band to contract inward, thus testing the contraction performance.

[0016] S5. Start the Roots pumps in the same direction, so that one Roots pump pumps air while the other draws in air, and the pumped air flow rate is greater than the drawn air flow rate, causing the elastic band to float up as a whole, forming a gas passage, and testing the overall elasticity performance.

[0017] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention can test the local elasticity of elastic bands by applying local force, and the elasticity test effect is more comprehensive. At the same time, different test methods can be switched by controlling the flow of gas, and the test switching is convenient. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic cross-sectional view of the detection roller structure of the present invention;

[0021] Figure 3 This is a hydraulic schematic diagram of the present invention. Figure 1 ;

[0022] Figure 4 This is a hydraulic schematic diagram of the present invention. Figure 2 ;

[0023] Figure 5 This is a hydraulic schematic diagram of the present invention. Figure 3 ;

[0024] Figure 6 This is a cross-sectional view of the detection roller of the present invention;

[0025] Figure 7 This is a schematic diagram of the installation of the rolling mill plate of the present invention;

[0026] In the diagram: 1. Detection roller; 2. Support roller; 3. Fixed support; 4. High-pressure gas source; 5. Roots pump; 6. Motor; 7. Fixed base; 8. Telescopic cylinder; 81. Electric gripper; 11. Sealing disc; 111. Through hole; 112. Check valve; 12. Double-ended screw; 13. Intermediate tube; 131. Vent hole; 14. Separator plate; 15. Gas vent hole; 16. Flexible sealing strip; 17. Winding wheel; 9. Calender plate; 91. Guide rail. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figure 1-7This invention provides a technical solution: an elastic band elasticity detection device based on the Internet of Things, comprising a fixed base 7, characterized in that: a fixed support 3 is fixedly installed on one side of the fixed base 7 by welding, and a holding roller 2 is movably connected between the two fixed supports 3 by bearings; a motor 6 is installed on one side of the fixed base 7, and a detection roller 1 is movably connected to the output end of the motor 6 by bearings; telescopic cylinders 8 are fixedly installed on the top and bottom of the fixed base 7 by welding, and an electric gripper 81 is connected to the output end of the telescopic cylinder 8 by a coupling; a guide rail 91 is fixedly installed on one side of the fixed base 7 by welding, and a calender plate 9 is slidably installed on the guide rail 91, the contour of the calender plate 9 being adapted to the detection roller 1; when detecting the elasticity of the elastic band, the electric gripper 81 is used to clamp the two ends of the elastic band, thereby detecting the elasticity of the elastic band; the calender plate 9 is pressed against the outside of the elastic band, so that its side is subjected to continuous pressure; the parallel position of the calender plate 9 can be adjusted according to the width of the elastic band.

[0029] The side wall of the test roller 1 is evenly provided with gas vent holes 15. The inner walls of the two sides of the test roller 1 are connected by bearings with double-headed screws 12. The double-headed screws 12 are hollow. The middle part of the double-headed screws 12 is fixed by welding with a middle tube 13. The middle tube 13 is provided with a vent hole 131. When testing, high pressure gas enters the middle tube 13 from the double-headed screws 12, and then exits from the vent hole 131 and then from the gas vent hole 15, which increases the pressure of the elastic band and causes the elastic band to bulge locally. This repeated bulging can quickly test the local resilience of the elastic band.

[0030] The two ends of the double-headed screw 12 are connected to the roots pump 5. The input ends of the two roots pump 5 are connected to the high-pressure gas source 4. When the two roots pump 5 are started in the forward direction, they pump high-pressure gas into the double-headed screw 12. When the two roots pump 5 are started in the reverse direction, the pressure in the detection roller 1 is reduced, which can quickly make the elastic band that was just bulging inward. This is used to detect the local elasticity in the forward and reverse directions. If the quality of the elastic band is poor, it will crack and cause air leakage. At this time, it can be easily observed and the defective products can be rejected. It is convenient to use different pumping directions to test the different properties of the elastic band.

[0031] The double-ended screw 12 is provided with external threads in opposite directions. The left and right ends of the double-ended screw 12 are respectively screwed with sealing discs 11. When the double-ended screw 12 is rotated, due to the meshing of the threads, the lateral position of the sealing discs 11 can be adjusted so that they are aligned with the elastic band, blocking the area outside the two sealing discs 11. High-pressure gas can only be ejected from the gas vent hole 15 in the middle to prevent high-pressure gas from splashing.

[0032] The sidewall of the sealing disc 11 is uniformly fixed with a winding wheel 17 by welding. A flexible sealing strip 16 is wound around the outside of the winding wheel 17. The flexible sealing strip 16 is flush with the gas vent hole 15 and covers the inner wall of the gas vent hole 15. One end of the flexible sealing strip 16 is fixed to the inner wall of the detection roller 1 by adhesive. Flexible magnetic strips are fixed to one side of the flexible sealing strip 16 and the inner wall of the detection roller 1 by adhesive. When the sealing disc 11 is moved, the flexible sealing strip 16 can be unfolded and covered on the gas vent hole 15, completely sealing the gas vent hole 15 and improving the air blocking effect. At the same time, the flexible sealing strip 16 can restrict the rotation of the sealing disc 11, so that it can only slide horizontally, which is convenient for adjusting the position. When the sealing disc 11 moves to both sides, the flexible sealing strip 16 can be rewound onto the winding wheel 17 for easy storage.

[0033] A partition plate 14 is welded to the middle of the intermediate tube 13. The partition plate 14 slides in contact with the inner wall of the detection roller 1. The partition plate 14 divides the interior of the detection roller 1 into two chambers of equal volume. The partition plate can separate the left and right chambers. When the two Roots pumps 5 are started in opposite directions, the air can only be discharged from the gas vent 15 due to the obstruction. The air is drawn in from the other end through the gas vent 15. To avoid air stagnation, the flow rate in the forward direction is usually increased so that excess air can be drawn into the reverse pump end. At this time, the elastic band is slightly suspended outside the detection roller 1 due to air pressure, causing the middle of the entire elastic band to bulge upward. By comparing the local bulge, the overall elasticity of the elastic band can be detected. The elastic band can be moved up and down to detect from all directions, and the detection position is more accurate.

[0034] The sealing disc 11 has a through hole 111, and a one-way valve 112 is installed inside the through hole 111. The one-way valve 112 is open from the side to the middle and closed from the middle to the side. The closure from the middle to the side can prevent high pressure gas from being discharged from the middle to both sides, reducing the pressure on the flexible sealing strip 16. However, when the two sealing discs 11 are unfolded to the side, air can be quickly allowed to pass through the through hole 111 without obstruction due to insufficient gas discharge, which facilitates rapid unfolding.

[0035] The working process of this elasticity testing device is as follows:

[0036] S1. Two electric grippers 81 are used to tighten the elastic band, so that the elastic band is tightly attached to the outer wall of the detection roller 1.

[0037] S2. Start the motor 6 to drive the double-headed screw 12 to rotate, adjust the position of the two sealing discs 11 to adapt to the width of the elastic band, so that steam cannot be discharged from the covered area;

[0038] S3. Start the Roots pump 5 and discharge high-pressure gas from the two pumps to the outside of the test roller 1, causing the elastic band to bulge and test whether it can return to its original state.

[0039] S4. Restart the Roots pump 5 to allow the two Roots pumps 5 to absorb gas, which reduces the pressure inside the test roller 1, causing the elastic band to contract inward and test the contraction performance.

[0040] S5. Start the Roots pump 5 in the same direction, so that one Roots pump 5 pumps air and the other draws air, and the pumped air flow rate is greater than the draw-in air flow rate, so that the elastic band floats up as a whole, forming a gas passage, and the overall elasticity performance is tested.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An elastic band tension detection device based on the Internet of Things, comprising a fixing base (7), characterized in that: The fixed base (7) is fixedly mounted on one side by welding with a fixed support (3). The two fixed supports (3) are movably connected by a bearing with a support roller (2). A motor (6) is mounted on one side of the fixed seat (7). The output end of the motor (6) is movably connected to a detection roller (1) through a bearing. Telescopic cylinders (8) are fixedly mounted on the top and bottom of the fixed seat (7) by welding. The output end of the telescopic cylinder (8) is connected to an electric gripper (81) through a coupling. A guide rail (91) is fixedly mounted on one side of the fixed seat (7) by welding. A rolling plate (9) is slidably mounted on the guide rail (91). The outline of the rolling plate (9) is adapted to the detection roller (1). The side wall of the detection roller (1) is uniformly provided with gas vent holes (15). The inner walls of the two sides of the detection roller (1) are connected by bearings to a double-headed screw (12). The double-headed screw (12) is hollow. The middle part of the double-headed screw (12) is fixed by welding to a middle tube (13). The middle tube (13) is provided with a vent hole (131). The two ends of the double-ended screw (12) are respectively connected to the Roots pump (5), and the double-ended screw (12) is provided with external threads in opposite directions. The left and right ends of the double-ended screw (12) are respectively screwed with sealing discs (11). The sidewall of the sealing disc (11) is uniformly fixed with a winding wheel (17) by welding. A flexible sealing strip (16) is connected to the outside of the winding wheel (17) by winding. The flexible sealing strip (16) is flush with the gas vent (15) and covers the inner wall of the gas vent (15). One end of the flexible sealing strip (16) is fixed to the inner wall of the detection roller (1) by adhesive bonding. Flexible magnetic strips are fixed to one side of the flexible sealing strip (16) and the inner wall of the detection roller (1) by adhesive bonding. A partition plate (14) is fixed to the middle part of the intermediate tube (13) by welding. The partition plate (14) slides in contact with the inner wall of the detection roller (1). The partition plate (14) divides the interior of the detection roller (1) into two chambers of equal volume. The sealing disc (11) has a through hole (111), and a one-way valve (112) is provided inside the through hole (111). The one-way valve (112) is open from the side to the middle and closed from the middle to the side. The working process of this device includes the following steps: S1. Two electric grippers (81) are used to tighten the elastic band, and the elastic band is pressed tightly against the outer wall of the detection roller (1); S2. Start the motor (6) to drive the double-headed screw (12) to rotate, adjust the position of the two sealing discs (11) to adapt to the width of the elastic band, so that steam cannot be discharged from the covered area; S3. Start the Roots pump (5) and discharge high-pressure gas from the two pumps to the outside of the test roller (1) to make the elastic band bulge and test whether it can return to its original state. S4. Restart the Roots pump (5) to allow the two Roots pumps (5) to absorb gas, thereby reducing the pressure inside the test roller (1) and causing the elastic band to shrink inward to test the shrinkage performance. S5. Start the Roots pump (5) in the same direction, so that one Roots pump (5) pumps air and the other draws air, and the flow rate of the pumped air is greater than the flow rate of the drawn air, so that the elastic band floats up as a whole, forming a gas passage, and the overall elasticity performance is tested.

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