Rubber elasticity detection device

Abstract

The invention belongs to the technical field of rubber detection, and particularly discloses a rubber elasticity detection device which is characterized in that an electric telescopic rod is fixedly connected to the position, close to the upper portion, of a template, a rocker is hinged to the output end of the electric telescopic rod, a detection head is installed at the bottom end of the rocker, a power box is arranged below the electric telescopic rod, and a plurality of limiting grooves are formed in the power box; a limiting groove is formed in the power box, a movable column and a limiting disc are slidably connected into the limiting groove, a movable pipe is fixedly connected to the end, away from the power box, of the movable column, a vacuum pump is installed on the power box, a hose is communicated between the vacuum pump and the movable pipe, and the suction cup is installed at the end, away from the movable column, of the movable pipe. The rubber can be evenly adsorbed through the suction cup, so that the suction cup is fixed, and the situation that when a rigid clamp clamps the side wall of the rubber, the external load of the rubber is prone to being uneven, stress concentration is caused, and subsequently measured parameters such as the elastic modulus and the rebound rate deviate from true values is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of rubber detection, and particularly discloses a rubber elasticity detection device. Background Art

[0002] Rubber is an elastic polymer that can be obtained from the sap of some plants or artificially produced. Depending on how it is produced, it can be divided into two categories: synthetic rubber and natural rubber. It has a wide range of applications and products, such as tires and gaskets. Due to its elastic properties, rubber requires the selection of appropriate raw materials based on its elasticity when applied to various fields.

[0003] Existing rubber elasticity testing devices usually use rigid clamps to clamp the sides of the rubber when testing its elasticity, exerting rigid mechanical extrusion on the rubber. This results in uneven external load on the rubber, causing stress concentration and causing subsequent measured parameters such as elastic modulus and rebound rate to deviate from their true values.

[0004] Therefore, the existing rubber elasticity detection device cannot meet the needs in actual use, so there is an urgent need for improved technology to solve the above problems. Summary of the Invention

[0005] In view of this, the present invention proposes a rubber elasticity detection device to solve the above-mentioned problem.

[0006] To achieve the above objectives, the present invention provides a rubber elasticity detection device, including a base, a template, a detection head and a suction cup. The base is fixed with a template, an electric telescopic rod is fixed at a position near the top of the template, the output end of the electric telescopic rod is hinged with a rocker, the detection head is installed at the bottom end of the rocker, a power box is provided below the electric telescopic rod, a plurality of limit grooves are provided on the power box, a moving column and a limit plate are slidably connected in the limit grooves, a moving tube is fixed at one end of the moving column away from the power box, a vacuum pump is installed on the power box, a hose is connected between the vacuum pump and the moving tube, and the suction cup is installed at the end of the moving tube away from the moving column.

[0007] Preferably, a cylinder is mounted on the mold plate, the output end of the cylinder is fixedly connected to a push plate, the other end of the push plate is fixedly connected to a limit plate, a retaining groove is provided on the limit plate, an inner nest is provided on the outside of the suction cup, a sealing cover is fixedly connected to the outside of the inner nest, the space between the sealing cover and the inner nest constitutes an oil guide channel, and the port of the oil guide channel is located at the lower end of the sealing cover and the inner nest and an oil spray port is provided.

[0008] Preferably, the upper end of the sealing cover is fixedly connected to the oil tank, and an oil guide port is connected between the oil tank and the oil guide channel. The upper end of the oil tank is fixedly connected to the ferrule, and the ferrule is slidably connected to the retaining groove. The sealing cover, the oil tank and the inner nest are all slidably connected to the movable tube. An oil filling port is provided on the oil tank, and a sealing cover is installed at the oil filling port, and the sealing cover is rotatably installed on the oil tank.

[0009] Preferably, an inner ring groove is provided on the oil guide channel between the sealing cover and the inner nesting, and a connecting rod is slidably connected to the inside of the inner ring groove, a spring 1 is fixed to the connecting rod, and a touch rod is fixed to the other end of the spring 1, and the touch rod is slidably connected to the inside of the oil guide channel.

[0010] Preferably, a threaded rod is fixed on the side wall of the push plate, one end of the threaded rod away from the push plate is threadedly connected to a threaded barrel, the other end of the threaded barrel is fixed to a pressure plate, and the rubber is installed between the pressure plate and the suction cup.

[0011] Preferably, a sleeve is fixedly connected to the side wall of the push plate, a sleeve rod is slidably connected in the sleeve, a second spring is fixedly connected between the sleeve rod and the sleeve, a clamping hole is opened on the pressure plate, and the end of the sleeve rod away from the sleeve is slidably engaged with the clamping hole.

[0012] Preferably, a connecting sleeve is rotatably mounted on the template, and a gear three is fixedly connected to the end of the connecting sleeve away from the template, and the gear three is provided with an internal gear and an external gear. A connecting plate is provided inside the connecting sleeve, and one end of the connecting plate is fixed to the template, and a plurality of gears two are rotatably mounted on the other end, and the plurality of gears two are all meshed with the internal gear. A motor is also fixedly mounted on the template, and a gear one is fixedly connected to the output end of the motor, and the gear one is meshed with the external gear.

[0013] Preferably, a rack is meshedly connected to the gear 2, the movable column and the limit plate are fixed to the rack, and the positions of adjacent racks are staggered.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. By adsorbing the rubber with a suction cup, rigid mechanical extrusion can be avoided, which will lead to uneven external load on the rubber and stress concentration, causing subsequent measured parameters such as elastic modulus and rebound rate to deviate from the true values.

[0016] 2. Through the cooperation of the motor, gear 1, gear 2, rack and other structures, when the motor is started, the motor drives gear 1 to rotate, and subsequently drives gear 1, gear 3 and gear 2 to rotate, so that the rotation of gear 2 drives the rack to move along the limit groove, thereby adjusting the distance between the suction cups and achieving stable adsorption of rubber of different sizes.

[0017] 3. Through the coordination of the sealing cover, inner nesting, oil guide channel and other structures, on the one hand, the sealing cover and inner nesting are arranged outside the suction cup, which can improve the sealing between the suction cup and the rubber and ensure the adsorption stability of the rubber. On the other hand, the oil nozzle of the oil guide channel can form a liquid film on the rubber surface, filling the tiny gaps between the rubber and the suction cup and between the rubber and the sealing cover and inner nesting, further improving the sealing and ensuring the adsorption stability of the rubber.

[0018] 4. Through the setting of structures such as the touch rod and the inner ring groove, the oil can automatically flow out when the rubber is in contact with the sealing cover and the inner nesting, thereby improving the sealing performance. When the rubber is separated from the sealing cover and the inner nesting, the touch rod is reset under the action of spring 1, and the ring plate on the touch rod will block the oil injection port, automatically controlling and cutting off the output of the oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0020] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0021] Figure 3 It is a structural schematic diagram of A of the present invention;

[0022] Figure 4 Schematic diagram of the internal structure of the power box of the present invention;

[0023] Figure 5 This is a schematic diagram of the connection structure of the connecting sleeve of the present invention;

[0024] Figure 6 Schematic diagram of the connection structure of the suction cup of the present invention;

[0025] Figure 7 A cross-sectional view of the connection structure of the suction cup of the present invention;

[0026] Figure 8 It is a structural schematic diagram of B of the present invention;

[0027] Figure 9 Schematic diagram of the structure of the cover of the present invention.

[0028] 1. Base; 2. Push plate; 3. Threaded rod; 4. Threaded barrel; 5. Sleeve; 6. Sleeve rod; 7. Rubber; 8. Detection head; 9. Press plate; 10. Rocker; 11. Electric telescopic rod; 12. Limiting groove; 13. Plate; 14. Power box; 15. Cylinder; 16. Vacuum pump; 17. Sealing cover; 18. Limiting plate; 19. Suction cup; 20. Cover; 21. Moving tube; 22. Hose; 23. Moving column ; 24. Limit plate; 25. Connecting plate; 26. Rack; 27. Gear 1; 28. Motor; 29. ​​Gear 2; 30. Gear 3; 31. Connecting sleeve; 32. Clamping hole; 33. Oil tank; 34. Clamping sleeve; 35. Oil filling port; 36. Oil guide channel; 37. Spring 1; 38. Touch rod; 39. Inner nesting; 40. Inner ring groove; 41. Connecting rod; 42. Retaining groove; 43. Oil injection port; 44. Oil guide port. DETAILED DESCRIPTION

[0029] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] See also Figure 1-9 As shown, the present invention is a rubber elasticity detection device, including a base 1, a template 13, a detection head 8 and a suction cup 19. The base 1 is fixed with a template 13, and an electric telescopic rod 11 is fixed near the upper position of the template 13. The output end of the electric telescopic rod 11 is hinged with a rocker 10. The detection head 8 is installed at the bottom end of the rocker 10. The electric telescopic rod 11 can drive the rocker 10 to move, thereby changing the position of the detection head 8 to adjust the impact position of the detection head 8 according to the thickness of the rubber 7. A power box 14 is provided below the electric telescopic rod 11, and a plurality of limit slots 12 are opened on the power box 14. The limit slots 12 are slidably connected with a moving column 23 and The limit plate 24 and the moving column 23 are fixedly connected to the moving tube 21 at one end away from the power box 14. A vacuum pump 16 is installed on the power box 14. A hose 22 is connected between the vacuum pump 16 and the moving tube 21. The suction cup 19 is installed at the end of the moving tube 21 away from the moving column 23. When the elasticity of the rubber 7 is tested, the rubber 7 can be uniformly adsorbed by the suction cup 19, thereby fixing the suction cup 19 to avoid rigid mechanical extrusion. When the rigid clamp clamps the side wall of the rubber 7, it is easy to cause uneven external load on the rubber 7, resulting in stress concentration, so that the subsequently measured parameters such as the elastic modulus and rebound rate deviate from the true value.

[0032] A cylinder 15 is mounted on the mold plate 13, and the output end of the cylinder 15 is fixedly connected to a push plate 2, and the other end of the push plate 2 is fixedly connected to a limit plate 18, and a retaining groove 42 is provided on the limit plate 18. An inner nest 39 is provided on the outside of the suction cup 19, and a sealing cover 17 is fixedly connected to the outside of the inner nest 39. The space between the sealing cover 17 and the inner nest 39 constitutes an oil guide channel 36, and an oil injection port 43 is provided at the lower end of the sealing cover 17 and the inner nest 39. When the suction cup 19 contacts and adsorbs the rubber 7, the sealing cover 17 and the inner nest 39 also fit closely with the rubber 7, realizing negative pressure adsorption of the inner ring suction cup 19, and the sealing cover 17 and the inner nest 39 improve the sealing performance, ensure the stability of the rubber 7 when being adsorbed and fixed, and improve the accuracy of the elasticity detection of the rubber 7.

[0033] The upper end of the sealing cover 17 is fixedly connected to the oil tank 33, and an oil guide port 44 is connected between the oil tank 33 and the oil guide channel 36. When the suction cup 19 adsorbs the rubber 7, the oil nozzle 43 can flow out oil, thereby filling the tiny gap between the surface of the rubber 7 and the suction cup 19, forming a continuous liquid film, blocking the air flow path, and when the detection head 8 knocks on the rubber 7, the rubber 7 will vibrate, resulting in a tiny gap between the contact surface of the rubber 7 and the suction cup 19. The liquid film formed by the oil can continuously fill the newly formed gap, realizing dynamic sealing compensation, further In order to improve the sealing between the suction cup 19 and the rubber 7, ensure the stability of the rubber 7 when being adsorbed and fixed, and improve the accuracy of the elasticity detection of the rubber 7, a ferrule 34 is fixed to the upper end of the oil tank 33, and the ferrule 34 is slidingly connected to the retaining groove 42, and the sealing cover 17, the oil tank 33 and the inner nest 39 are all slidingly connected to the mobile tube 21, and an oil filling port 35 is provided on the oil tank 33, and the oil filling port 35 is used to replenish oil to the oil tank 33. A sealing cover 20 is installed at the oil filling port 35, and the sealing cover 20 is rotatably installed on the oil tank 33, and the sealing cover 20 can block the oil filling port 35.

[0034] An inner ring groove 40 is also provided on the oil guide channel 36 between the sealing cover 17 and the inner nest 39. A connecting rod 41 is slidably connected to the inside of the inner ring groove 40. A spring 37 is fixed to the connecting rod 41. The other end of the spring 37 is fixed to a touch rod 38. The touch rod 38 is slidably connected to the inside of the oil guide channel 36. When the suction cup 19 contacts the rubber 7, the sealing cover 17 and the inner nest 39 are also driven to fit tightly with the rubber 7. At this time, the touch rod 38 is squeezed by the rubber 7 to slide inside the oil guide channel 36 and squeeze the spring 37 at the same time. A ring plate portion is provided on the touch rod 38, which will move to the inside of the inner ring groove 40. At this time, the oil can flow from the gap between the inner ring groove 40 and the ring plate portion to the surface of the rubber 7, thereby realizing the automatic flow of the oil to the surface of the rubber 7.

[0035] The cam 14 is pressed against the bottom surface of the workbench 1 and the cam 16 is pressed against the top surface of the workbench 1 and the cam 16 is pressed against the bottom surface of the workbench 1. When the cam 14 is pressed against the workbench 1, the cam 16 is pressed against the top surface of the workbench 1 and the cam 16 is pressed against the top surface of the workbench 1. At the same time, the limiting plate 18 will drive the sealing cover 17 and the inner nesting 39 close to the suction cup 19 through the card sleeve 34 until the sealing cover 17, the inner nesting 39 and the rubber 7 are also tightly fitted to ensure the sealing between the suction cup 19 and the rubber 7.

[0036] A connecting sleeve 31 is rotatably mounted on the template 13. A gear 30 is fixedly connected to the end of the connecting sleeve 31 away from the template 13. The gear 30 is provided with an internal gear and an external gear. A connecting plate 25 is sleeved inside the connecting sleeve 31. One end of the connecting plate 25 is fixed to the template 13, and a plurality of gears 29 are rotatably mounted on the other end. The plurality of gears 29 are all meshed with the internal gear. A motor 28 is also fixedly mounted on the template 13. A gear 1 27 is fixedly connected to the output end of the motor 28. The gear 1 27 is meshed with the external gear. A rack 26 is meshed with the gear 29. The movable column 23 and the limit plate 24 are connected together. They are fixed on the rack 26, and the positions of adjacent racks 26 are staggered. The staggered racks 26 can avoid obstruction when the racks 26 are close to each other, and increase the moving distance of the rack 26. When rubbers 7 of different sizes are adsorbed, the motor 28 can be started, and the motor 28 drives the gear 1 27 to rotate, the gear 1 27 drives the gear 3 30 to rotate, the gear 3 30 drives the gear 2 29 to rotate, and the gear 2 29 rotates to drive the rack 26 to move along the limit groove 12, thereby adjusting the distance between the suction cups 19 and achieving stable adsorption of rubbers 7 of different sizes.

[0037] Working principle:

[0038] First, according to the size of the rubber 7, the motor 28 is started, and the motor 28 drives the gear 1 27 to rotate, and then drives the gear 1 27, the gear 3 30 and the gear 2 29 to rotate, so that the gear 2 29 rotates and drives the rack 26 to move along the limit groove 12, thereby adjusting the spacing between the suction cups 19, and achieving stable adsorption of rubbers 7 of different sizes. Then, the rubber 7 is attached to the suction cup 19, and the cylinder 15 is started. The cylinder 15 drives the threaded rod 3, the threaded barrel 4 and the pressure plate 9 to approach the rubber 7 through the push plate 2 until the pressure plate 9 drives the rubber 7 to squeeze out the air inside the suction cup 19, pressing the rubber 7 against the suction cup 19, and at the same time, the vacuum pump 1 is started. 6, realize negative pressure adsorption of the rubber 7 by the suction cup 19, and then approach the rubber 7 through the cylinder 15, and the pressure plate 9 moves away from the rubber, until the limit plate 18 drives the sealing cover 17 and the inner nest 39 to approach the suction cup 19 through the clamping sleeve 34, until the sealing cover 17, the inner nest 39 and the rubber 7 are also tightly fitted, and the suction cup 19 is rotated to the bottom of the rubber 7. Finally, the electric telescopic rod 11 drives the detection head 8 to move to a suitable distance, pulls the detection head 8 to a certain height, and relaxes the detection head 8. The detection head 8 knocks on the rubber 7. The base 1 or the template 13 can be installed with a ruler to record the rebound amount of the detection head 8 after knocking on the rubber 7, thereby measuring the elasticity of the rubber 7.

[0039] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A rubber elasticity detection device, comprising a base (1), a template (13), a detection head (8) and a suction cup (19), characterized in that: A mold plate (13) is fixedly connected to the base (1), an electric telescopic rod (11) is fixedly connected to the position near the top of the mold plate (13), an output end of the electric telescopic rod (11) is hinged with a rocker (10), a detection head (8) is installed at the bottom end of the rocker (10), a power box (14) is provided below the electric telescopic rod (11), a plurality of limit grooves (12) are opened on the power box (14), a moving column (23) and a limit plate (24) are slidably connected in the limit grooves (12), a moving tube (21) is fixedly connected to one end of the moving column (23) away from the power box (14), a vacuum pump (16) is installed on the power box (14), a hose (22) is connected between the vacuum pump (16) and the moving tube (21), and a suction cup (19) is installed at one end of the moving tube (21) away from the moving column (23).

2. A rubber elasticity detection device according to claim 1, characterized in that: A cylinder (15) is mounted on the mold plate (13), the output end of the cylinder (15) is fixedly connected to a push plate (2), the other end of the push plate (2) is fixedly connected to a limit plate (18), the limit plate (18) is provided with a retaining groove (42), the outside of the suction cup (19) is provided with an inner nest (39), the outside of the inner nest (39) is fixedly connected to a sealing cover (17), the space between the sealing cover (17) and the inner nest (39) forms an oil guide channel (36), the port of the oil guide channel (36) is located at the lower end of the sealing cover (17) and the inner nest (39) and is provided with an oil injection port (43).

3. The rubber elasticity detection device according to claim 2, characterized in that: The upper end of the sealing cover (17) is fixedly connected to an oil tank (33), an oil guide port (44) is communicated between the oil tank (33) and the oil guide channel (36), the upper end of the oil tank (33) is fixedly connected to a ferrule (34), the ferrule (34) is slidably connected to the retaining groove (42), and the sealing cover (17), the oil tank (33) and the inner nest (39) are all slidably connected to the moving tube (21), the oil tank (33) is provided with an oil filling port (35), a sealing cover (20) is installed at the oil filling port (35), and the sealing cover (20) is rotatably installed on the oil tank (33).

4. A rubber elasticity detection device according to claim 3, characterized in that: The oil guide passage (36) is provided with an inner ring groove (40) between the sealing cover (17) and the inner nest (39). A connecting rod (41) is slidably connected to the interior of the inner ring groove (40). A spring (37) is fixed to the connecting rod (41). The other end of the spring (37) is fixed to a touch rod (38). The touch rod (38) is slidably connected to the interior of the oil guide passage (36).

5. The rubber elasticity detection device according to claim 2, characterized in that: A threaded rod (3) is fixedly connected to the side wall of the push plate (2); one end of the threaded rod (3) away from the push plate (2) is threadedly connected to a threaded barrel (4); the other end of the threaded barrel (4) is fixedly connected to a pressure plate (9); and a rubber (7) is installed between the pressure plate (9) and the suction cup (19).

6. The rubber elasticity detection device according to claim 5, characterized in that: A sleeve (5) is fixedly connected to the side wall of the push plate (2), a sleeve rod (6) is slidably connected in the sleeve (5), and a second spring is fixedly connected between the sleeve rod (6) and the sleeve (5). A clamping hole (32) is provided on the pressure plate (9), and the end of the sleeve rod (6) away from the sleeve (5) is slidably engaged with the clamping hole (32).

7. The rubber elasticity detection device according to claim 1, characterized in that: A connecting sleeve (31) is rotatably mounted on the template (13), and a gear three (30) is fixedly connected to one end of the connecting sleeve (31) away from the template (13). The gear three (30) is provided with an internal gear and an external gear. A connecting plate (25) is sleeved inside the connecting sleeve (31), and one end of the connecting plate (25) is fixedly connected to the template (13), and a plurality of gear twos (29) are rotatably mounted on the other end. The plurality of gear twos (29) are all meshed with the internal gear. A motor (28) is also fixedly mounted on the template (13), and a gear one (27) is fixedly connected to the output end of the motor (28), and the gear one (27) is meshed with the external gear.

8. The rubber elasticity detection device according to claim 7, characterized in that: The gear 2 (29) is meshed with a rack (26), the movable column (23) and the limiting plate (24) are fixedly connected to the rack (26), and the positions of adjacent racks (26) are staggered.

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