A rubber product hardness testing device

Abstract

The present invention relates to the technical field of hardness detection, and specifically discloses a hardness detection device for rubber products, including: a base and a measurement frame. The measurement frame is arranged on the top of the base, and a regulator is arranged on the surface of the measurement frame. A pressing needle member is arranged at the bottom of the regulator, and a support seat is arranged on the surface of the base; the transmission speed after the rotation of the adjustment knob is switched through the docking component and the switching component to achieve the adjustment of the rotation gear accuracy of the pressing needle member; according to the energized states of the first metal sheet, the second metal sheet and the third metal sheet, the moving positions of the three groups of the second rotating rod are controlled to achieve gear switching, so as to adjust the rotation accuracy of the adjustment knob according to the sample thickness. According to the trigger signal of the trigger switch base, the working duration of the second motor is controlled, which indirectly drives the rotation of the threaded seat. When the threaded seat rotates, the second screw rod moves vertically to achieve the compensation operation of the moving distance of the second screw rod, reducing the risk of the environmental temperature affecting the hardness detection effect.

Description

Technical Field

[0001] The present invention relates to the technical field of hardness detection, and specifically to a hardness detection device for rubber products. Background Art

[0002] In the production of rubber products, different application scenarios have strict requirements for the hardness of rubber. Hardness detection devices can accurately measure the hardness of rubber to ensure that the products meet relevant standards and customer requirements. By regularly detecting the hardness of rubber products on the production line, hardness fluctuations can be detected in a timely manner, which is convenient for taking measures to adjust the production process, ensuring the consistency and stability of product quality, and reducing the defective rate. During the use of a hardness detection device for rubber products, a press needle with a specified shape is pressed into the surface of the rubber product to be measured under the pressure of a spring. When the press needle is vertically pressed into the rubber sample, the penetration depth at the end of the press needle is inversely proportional to the hardness of the rubber. The internal structure of a spring-type pressure adjustment button usually consists of an adjustment knob, a threaded rod, a spring fixing seat, a pressure spring, and a positioning pin or a guide groove. The adjustment knob is usually located outside for easy operation by the user. Its surface may have anti-slip patterns and has a threaded structure inside, which cooperates with the components below to achieve pressure adjustment. The threaded rod matches the thread of the adjustment knob. When the adjustment knob is rotated, the threaded rod moves up and down. The lower end of the threaded rod is connected to the spring fixing seat, which is used to fix one end of the spring. As the threaded rod moves up and down, the spring fixing seat also moves accordingly, thereby changing the compression degree of the spring. The pressure spring is the core component providing pressure. One end is fixed on the spring fixing seat, and the other end is usually connected to a component related to the press needle or the pressure sensor. The pressure applied to the object to be measured is changed by adjusting the compression amount of the spring;

[0003] A press needle with a specified shape is vertically pressed into the surface of a rubber sample under a certain pressure, and the hardness value is determined according to the penetration depth. For thicker rubber samples, since there is more rubber material inside to resist the penetration of the press needle, a larger detection pressure is required to make the press needle reach an appropriate penetration depth, so as to accurately reflect the hardness characteristics of the rubber. For thinner rubber samples, under a smaller pressure, the press needle may penetrate too deep or even penetrate through the sample, making it impossible to accurately measure the hardness. Therefore, a smaller detection pressure is required to keep the penetration depth within a reasonable measurement range. For example: usually, for rubber samples with a thickness less than 6 mm, a smaller pressure should be used during detection, and for rubber samples with a thickness greater than 10 mm, a larger pressure is often required to make the detection results accurate and reliable. Larger detection pressures are required for thicker rubber samples, while smaller detection pressures are required for thinner rubber samples;

[0004] During the detection process of rubber samples, it is necessary to detect the thickness of the samples in advance and manually adjust the detection pressure according to the thickness. However, it is difficult to achieve very precise manual pressure adjustment. There may be differences in the pressure adjustment grasped by different operators. Even for the same operator, it is very difficult to adjust the pressure to exactly the same precise value every time. Moreover, the operator needs to gradually adjust the pressure value according to experience and the thickness of the rubber sample, and this process is relatively cumbersome. Especially when detecting a large number of rubber samples with different thicknesses, it will take more time for pressure adjustment, reducing the overall detection efficiency;

[0005] Manual pressure adjustment requires the operator to have rich experience and professional knowledge and understand the approximate pressure range required for rubbers with different thicknesses. For operators with insufficient experience, they may not be able to accurately judge and adjust the pressure, resulting in inaccurate detection results. This increases the training cost and difficulty for operators. And when performing manual pressure adjustment operations for a long time, operators are prone to fatigue, thus may have operation mistakes, such as excessive or insufficient pressure adjustment. Frequent manual pressure adjustment will cause more friction and mechanical stress on the pressure control components of the detection equipment, such as pressure regulating knobs, pressure sensors, etc., which are likely to cause premature wear of these components and reduce the service life and performance stability of the equipment;

[0006] Moreover, in cold weather, rubber becomes hard, and in hot weather, rubber becomes soft. Therefore, the temperature of the external environment will affect the hardness of rubber, and errors will occur during the hardness detection process. For this reason, we propose a hardness detection device for rubber products. Summary of the Invention

[0007] The purpose of the present invention is to provide a hardness detection device for rubber products to solve the problems mentioned in the above background technology, that is, during the detection process of rubber samples, it is necessary to detect the thickness of the samples in advance and manually adjust the detection pressure according to the thickness. However, it is difficult to achieve very precise manual pressure adjustment. There may be differences in the pressure adjustment grasped by different operators. Moreover, in cold weather, rubber becomes hard, and in hot weather, rubber becomes soft. Therefore, the temperature of the external environment will affect the hardness of rubber, and errors will occur during the hardness detection process.

[0008] To achieve the above purpose, the present invention provides the following technical solution: A hardness detection device for rubber products, comprising: a base and a measuring frame. The measuring frame is arranged on the top of the base, and a regulator is arranged on the surface of the measuring frame. A pressure needle member is arranged at the bottom of the regulator, and a support seat is arranged on the surface of the base; also comprising:

[0009] Monitoring component 1 and triggering component. Monitoring component 1 is arranged on the surface of the support base, and the triggering component is arranged on the surface of monitoring component 1. The sample to be detected is placed on the surface of the support base. The thickness of the sample is monitored by monitoring component 1, and the thickness is identified by the triggering component.

[0010] Adjusting component, docking component and switching component. The adjusting component is arranged on the back of the regulator, the docking component is arranged inside the adjusting component, and the switching component is arranged inside the docking component. The adjusting component includes an adjusting knob arranged on the back of the regulator. The transmission speed after the rotation of the adjusting knob is switched through the docking component and the switching component to realize the adjustment of the rotation gear accuracy of the needle pressing part.

[0011] Compensation component and monitoring component 2. The compensation component is arranged inside the regulator, and monitoring component 2 is arranged on the surface of the regulator. The external environment temperature is monitored by monitoring component 2, and the signal is transmitted to the compensation component through the controller. The compensation component compensates the pressure detection work of the needle pressing part according to the signal.

[0012] Among them, monitoring component 1 includes a lifting frame slidably connected to the outer wall of the support base. One side inside the lifting frame is threadedly connected with a screw rod 1. Both ends of the screw rod 1 are rotatably connected to a fixing frame 1. The bottom of the fixing frame 1 is fixed to the support base. One end of the screw rod 1 is fixedly connected to the output shaft of a motor 1. The end face of the motor 1 is fixed to the fixing frame 1. The top of the lifting frame is rotatably connected to a fixing plate through a movable shaft. A pressing switch is fixed to the bottom of the fixing plate. A limiting block is arranged on the side of the fixing plate and is fixed to the surface of the lifting frame.

[0013] Among them, the triggering component includes a triggering block fixed to the side of the lifting frame, and the triggering block presses against the surface of the gear shifting adjustment seat. The surface of the gear shifting adjustment seat is successively distributed with a gear shifting switch 1, a gear shifting switch 2 and a gear shifting switch 3. A limiting rod is inserted inside the other side of the lifting frame, and both ends of the limiting rod are connected to a fixing frame 2. The bottom of the fixing frame 2 is fixed to the support base.

[0014] Among them, the adjusting knob is rotatably connected inside the protective cover. The protective cover is fixed to the back of the regulator. A gear 1 is fixed to the outer wall of the adjusting knob, and a gear 2 meshes with the surface of the gear 1. A rotating rod 1 is fixed to the center of the gear 2. A gear 3 is fixed to the middle of the outer wall of the rotating rod 1, and a gear 4 is fixed to the side of the outer wall of the rotating rod 1 away from the gear 2.

[0015] Among them, the docking component includes a gear 5 meshing with the gear 3. A rotating rod 2 is fixed to the center of the gear 5. A gear 6 cooperating with the gear 4 is fixed to the outer wall of the rotating rod 2. A belt is slidably connected to the outer wall of the rotating rod 2. The tail of the rotating rod 2 is movably connected with an insertion ring.

[0016] Among them, the switching component includes a moving ring slidably connected to the outer wall of the second rotating rod through a slip ring, and metal sheets one, two, and three are sequentially distributed on the outer wall of the moving ring. Metal sheets one, two, and three are arranged in an interleaved manner, and electromagnet seats one, two, and three are sequentially arranged on the sides of metal sheets one, two, and three. The outer wall of the insertion ring is fixed to the inner wall of the protective cover, and sliding ports matching the electromagnet seats one, two, and three are provided on the inner wall of the insertion ring. A elastic rope is fixed to the side of the electromagnet seat one, and the end face of the elastic rope is fixed to the inner wall of the sliding port.

[0017] Among them, the second monitoring component includes a temperature monitor fixed on the surface of the regulator, and a trigger pointer is arranged at the center of the temperature monitor. The trigger pointer presses against the surface of the trigger switch seat, and the trigger switch seat is fixed to the inner wall of the temperature monitor.

[0018] Among them, the compensation component includes a third rotating rod arranged above the needle pressing member. One end of the belt is fixedly connected to the third rotating rod, and a first bevel gear is fixed to the outer wall of the third rotating rod. A second bevel gear is engaged with the bottom of the first bevel gear.

[0019] Among them, the bottom of the second bevel gear is fixed to the surface of the threaded seat. A second screw is threadedly connected inside the threaded seat. A seventh gear is fixed to the outer wall of the threaded seat. An eighth gear is engaged with the surface of the seventh gear. A fourth rotating rod is fixed to the center of the eighth gear. The bottom of the fourth rotating rod is connected to the output shaft of the second motor.

[0020] Among them, a fourth metal sheet is fixed to the bottom of the fourth rotating rod, and an electromagnet ring is arranged at the bottom of the fourth metal sheet. The electromagnet ring is fixedly connected to the output shaft of the second motor.

[0021] The present invention has at least the following beneficial effects:

[0022] According to the energized states of the first, second, and third metal sheets, control the three groups of moving positions of the second rotating rod to achieve gear switching, and achieve adjusting the rotation accuracy of the adjusting knob according to the thickness of the sample. When the sample is too thick, increase the rotation accuracy of the adjusting knob. For example, when rotating one degree, increase the pressure by three scales. When the sample is too thin, decrease the rotation accuracy of the adjusting knob. For example, when rotating one degree, increase the pressure by one scale, so as to adjust the pressing accuracy of the needle pressing member according to the thickness of the sample, which is convenient for fine adjustment and makes the pressure adjustment more accurate. Monitor the external temperature through the temperature monitor, trigger the rotation of the trigger pointer, and press the trigger switch seat through the trigger pointer. Control the working duration of the second motor according to the trigger signal of the trigger switch seat, indirectly drive the rotation of the threaded seat, and when the threaded seat rotates, the second screw moves vertically to achieve the compensation operation of the moving distance of the needle pressing member, reducing the risk of the environmental temperature affecting the hardness detection effect. Description of the Drawings

[0023] Figure 1The first three-dimensional schematic diagram of the present invention;

[0024] Figure 2 The second three-dimensional schematic diagram of the present invention;

[0025] Figure 3 The partial structural schematic diagram of the first monitoring component of the present invention;

[0026] Figure 4 The partial structural schematic diagram of the triggering component of the present invention;

[0027] Figure 5 The partial structural cross-sectional view of the regulator and the needle pressing member of the present invention;

[0028] Figure 6 The partial structural cross-sectional view of the adjustment component of the present invention;

[0029] Figure 7 The partial structural schematic diagram of the second rotating rod of the present invention;

[0030] Figure 8 The partial structural schematic diagram of the adjustment component, the docking component and... of the present invention;

[0031] Figure 9 The partial structural schematic diagram of the switching component of the present invention;

[0032] Figure 10 The partial structural cross-sectional view of the inserting ring of the present invention;

[0033] Figure 11 The partial structural schematic diagram of the second monitoring component of the present invention;

[0034] Figure 12 The partial structural cross-sectional view of the compensation component of the present invention.

[0035] In the figure: 11, base; 12, measuring frame; 13, regulator; 14, needle pressing member; 15, support base; 2, monitoring component one; 21, lifting frame; 22, screw one; 23, fixing frame one; 24, motor one; 25, fixing plate; 26, pressing switch; 27, limit block; 3, triggering component; 31, triggering block; 32, gear shift switch one; 33, gear shift switch two; 34, gear shift switch three; 35, limit rod; 36, fixing frame two; 37, gear shift adjustment seat; 4, adjustment component; 41, protective cover; 42, adjustment knob; 43, gear one; 44, gear two; 45, rotating rod one; 46, rotating rod two; 47, gear three; 48, gear four; 5, docking component; 51, gear five; 52, gear six; 53, socket; 54, insertion ring; 55, insertion circle; 56, belt; 6, switching component; 61, moving ring; 62, metal sheet one; 63, metal sheet two; 64, metal sheet three; 65, electromagnet seat one; 66, electromagnet seat two; 67, electromagnet seat three; 68, slip ring; 69, elastic cord; 7, compensation component; 71, rotating rod three; 72, first bevel gear; 73, second bevel gear; 74, threaded seat; 75, gear seven; 76, screw two; 77, gear eight; 78, rotating rod four; 79, motor two; 8, monitoring component two; 81, temperature monitor; 82, triggering pointer; 83, triggering switch seat; 91, metal sheet four; 92, electromagnet ring. Specific embodiments

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0037] Embodiment 1

[0038] Please refer to Figures 1 to 12 , the present invention provides a technical solution: a rubber product hardness detection device, including: a base 11 and a measuring frame 12. The measuring frame 12 is arranged on the top of the base 11, and a regulator 13 is arranged on the surface of the measuring frame 12. The bottom of the regulator 13 is provided with a needle pressing member 14, and a support base 15 is arranged on the surface of the base 11;

[0039] It further includes: a monitoring component one 2 and a triggering component 3. The monitoring component one 2 is arranged on the surface of the support base 15, and the triggering component 3 is arranged on the surface of the monitoring component one 2. Place the sample to be detected on the surface of the support base 15, monitor the thickness of the sample through the monitoring component one 2, and identify the thickness through the triggering component 3;

[0040] Adjustment component 4, docking component 5 and switching component 6. The adjustment component 4 is arranged on the back of the regulator 13. The docking component 5 is arranged inside the adjustment component 4. The switching component 6 is arranged inside the docking component 5. The adjustment component 4 includes an adjustment knob 42 arranged on the back of the regulator 13. The transmission speed after the rotation of the adjustment knob 42 is switched through the docking component 5 and the switching component 6, so as to realize the adjustment of the rotation gear accuracy of the needle pressing member 14, which is convenient for realizing the gear switching between small-amplitude precise adjustment and large-amplitude adjustment.

[0041] Compensation component 7 and monitoring component II 8. The compensation component 7 is arranged inside the regulator 13. The monitoring component II 8 is arranged on the surface of the regulator 13. The external environment temperature is monitored through the monitoring component II 8, and the signal is transmitted to the compensation component 7 through the controller. The compensation component 7 compensates the pressure detection work of the needle pressing member 14 according to the signal.

[0042] The monitoring component I 2 includes a lifting frame 21 slidably connected to the outer wall of the support base 15. One side of the lifting frame 21 is internally threaded with a first screw 22. Both ends of the first screw 22 are rotatably connected to a first fixing frame 23. The bottom of the first fixing frame 23 is fixed to the support base 15. One end of the first screw 22 is fixedly connected to the output shaft of a first motor 24. The end face of the first motor 24 is fixed to the first fixing frame 23. The top of the lifting frame 21 is rotatably connected to a fixing plate 25 through a movable shaft. A pressing switch 26 is fixed to the bottom of the fixing plate 25. A limiting block 27 is arranged on the side of the fixing plate 25, and the limiting block 27 is fixed to the surface of the lifting frame 21. A rubber clamping block is adhesively fixed to the side of the fixing plate 25. A clamping groove matched with the rubber clamping block is opened inside the limiting block 27. After the sample is placed on the top of the support base 15, the fixing plate 25 is rotated until the rubber clamping block is clamped into the clamping groove, so as to realize the fixing operation of the position of the fixing plate 25. The rotary design of the fixing plate 25 is convenient for the placement of the sample.

[0043] The triggering component 3 includes a triggering block 31 fixed to the side of the lifting frame 21, and the triggering block 31 presses against the surface of the gear adjustment seat 37. The surface of the gear adjustment seat 37 is sequentially distributed with a first gear switch 32, a second gear switch 33 and a third gear switch 34. A limiting rod 35 is inserted into the other side of the lifting frame 21, and both ends of the limiting rod 35 are connected to a second fixing frame 36. The bottom of the second fixing frame 36 is fixed to the support base 15. By pressing the triggering block 31 to trigger the gear adjustment seat 37, compared with the sensor for monitoring the thickness, it is more stable during the monitoring process, not easily interfered, and is convenient for the operator to directly observe the sample thickness monitoring situation and clarify the operation feedback.

[0044] Place the sample on the surface of the support base 15, turn on the control switch of the first motor 24, control the first motor 24 to start working, drive the first screw 22 to rotate forward. With the cooperation of the threaded hole inside the lifting frame 21, the lifting frame 21 moves downward. The lifting frame 21 drives the fixed plate 25 to move downward synchronously, and the fixed plate 25 drives the pressure switch 26 to move downward synchronously until the pressure switch 26 presses against the surface of the sample. After the pressure switch 26 is pressed, it transmits a signal to the controller to determine that the pressure switch 26 has detected the thickness of the sample. The controller controls the first motor 24 to stop working, and the lifting frame 21 stops moving, realizing the monitoring operation of the sample thickness. While the lifting frame 21 is moving, the trigger block 31 moves synchronously with the lifting frame 21. The trigger block 31 presses against the surface of the gear shifting adjustment seat 37. According to the position where the trigger block 31 presses against the surface of the gear shifting adjustment seat 37, the thickness of the sample is judged, and a signal is transmitted to the controller. When the sample is in a relatively thick state, the trigger block 31 presses against the first gear shift switch 32. When the sample is in a medium thickness state, the trigger block 31 presses against the second gear shift switch 33. When the sample is in a relatively thin state, the trigger block 31 presses against the third gear shift switch 34, realizing the transmission operation of the thickness signal. After the inspection is completed, press the control switch of the first motor 24 again, and the first motor 24 controls the first screw 22 to rotate reversely, so that the lifting frame 21 returns to its original position.

[0045] The adjustment knob 42 is rotatably connected inside the protective cover 41. The protective cover 41 is fixed to the back of the regulator 13. A first gear 43 is fixed to the outer wall of the adjustment knob 42, and a second gear 44 meshes with the surface of the first gear 43. A first rotating rod 45 is fixed at the center of the second gear 44. A third gear 47 is fixed to the middle of the outer wall of the first rotating rod 45, and a fourth gear 48 is fixed to the side of the outer wall of the first rotating rod 45 away from the second gear 44.

[0046] The docking assembly 5 includes a fifth gear 51 meshingly connected with the third gear 47. A second rotating rod 46 is fixed at the center of the fifth gear 51. A sixth gear 52 cooperating with the fourth gear 48 is fixed to the outer wall of the second rotating rod 46. A belt 56 is slidably connected to the outer wall of the second rotating rod 46. The tail of the second rotating rod 46 is movably connected with an insertion ring 55. A socket 53 is fixed to the end face of the adjustment knob 42, and an insertion ring 54 is arranged on the side of the socket 53. Teeth cooperating with the socket 53 are fixed to the surface of the insertion ring 54.

[0047] The switching assembly 6 includes a moving ring 61 which is slidably connected to the outer wall of the rotating rod 2 46 through a slip ring 68, and the outer wall of the moving ring 61 is sequentially distributed with a metal sheet 1 62, a metal sheet 2 63 and a metal sheet 3 64, the metal sheet 1 62, the metal sheet 2 63 and the metal sheet 3 64 are arranged alternately, and the sides of the metal sheet 1 62, the metal sheet 2 63 and the metal sheet 3 64 are sequentially provided with an electromagnet seat 1 65, an electromagnet seat 2 66 and an electromagnet seat 3 67, the outer wall of the insert ring 55 is fixed to the inner wall of the protective cover 41, and the inner wall of the insert ring 55 is provided with a metal sheet 1 65, an electromagnet seat 2 66 and an electromagnet seat 3 67. The sliding mouth of the electromagnet seat 1 66 and the electromagnet seat 3 67 is matched, and an elastic rope 69 is fixed on the side of the electromagnet seat 1 65, and the end face of the elastic rope 69 is fixed on the inner wall of the sliding mouth. The electromagnet seat 1 65, the electromagnet seat 2 66 and the electromagnet seat 3 67 are all composed of an electromagnet and a slide plate. The electromagnet is fixed on the surface of the slide plate, and the end face of the slide plate can slide inside the sliding mouth. The sliding mouth design facilitates the storage operation of the electromagnet seat 1 65, the electromagnet seat 2 66 and the electromagnet seat 3 67 when they are not needed, thereby preventing the electromagnet seat 1 65, the electromagnet seat 2 66 and the electromagnet seat 3 67 from affecting the movement of the movable ring 61.

[0048] When the gear switch three 34 is pressed, the controller controls the electromagnet in the electromagnet seat one 65 to be energized, and the electromagnet seat one 65 generates magnetism after being energized. Under the action of magnetism, the metal sheet one 62 moves in the direction close to the electromagnet seat one 65. At the same time, the electromagnet seat one 65 moves in the direction close to the metal sheet one 62. The elastic rope 69 is pulled by the electromagnet seat one 65 and is in a stretched and force-storing state. The metal sheet one 62 drives the moving ring 61 to move synchronously, and the moving ring 61 drives the rotating rod two 46 to move. The pulley on the side of the belt 56 close to the rotating rod two 46 slides horizontally on the surface of the rotating rod two 46 until the metal sheet one 62 and the electromagnet seat one 65 are attracted to each other, the gear four 48 is meshed with the gear six 52, and the rotating rod two 46 stops moving, so as to realize the switching operation of the fine-tuning gear, adapt to the sample with low thickness, and reduce the rotation accuracy of the adjusting knob 42. For example, rotating one degree increases the pressure of one scale, so as to realize the adjustment of the pressing accuracy of the pressing needle member 14 according to the sample thickness.

[0049] When the gear switch 233 is pressed, the controller controls the electromagnet in the electromagnet seat 266 to be energized. After the electromagnet seat 266 is energized, magnetism is generated, so that the metal sheet 263 moves toward the direction close to the electromagnet seat 266. Under the action of magnetism, the two are close to each other, and the electromagnet seat 266 moves inside the slide until the electromagnet seat 266 fits with the metal sheet 263. The metal sheet 263 drives the rotating rod 246 to move until the gear 347 fits with the gear 51, so as to realize the switching operation of the medium-range adjustment gear, which is suitable for samples of medium thickness. For example, the adjustment knob 42 is rotated once to increase the pressure of two scales. When the electromagnet seat 266 is energized, the magnetism of the electromagnet seat 266 is released. Under the action of gravity, the electromagnet seat 266 moves down along the slide.

[0050] When the first gear switch 32 is pressed, the controller controls the electromagnet in the third electromagnet seat 67 to be energized. Under the action of magnetism, the third metal sheet 64 approaches the third electromagnet seat 67, driving the second rotating rod 46 to move, so that the insertion ring 54 is engaged with the inside of the socket 53, realizing the docking and locking of the adjustment knob 42 and the second rotating rod 46. At this time, the engagement between the second gear 44 and the first gear 43 is released. Rotating the adjustment knob 42 synchronously drives the second rotating rod 46 to rotate, realizing the switching operation of adjusting the gear in a large range, increasing the rotation accuracy of the adjustment knob 42. For example, when rotating one degree, the pressure increases by three scales, adapting to samples with high thickness.

[0051] The first gear switch 32, the second gear switch 33 and the third gear switch 34 cooperate with the first electromagnet seat 65, the second electromagnet seat 66 and the third electromagnet seat 67 respectively. According to the trigger signals of the first gear switch 32, the second gear switch 33 and the third gear switch 34, the first electromagnet seat 65, the second electromagnet seat 66 and the third electromagnet seat 67 are energized respectively. After being energized, magnetism is generated. Under the action of magnetism, the first metal sheet 62, the second metal sheet 63 or the third metal sheet 64 is adsorbed respectively, driving the position of the second rotating rod 46 to move. According to the energized states of the first metal sheet 62, the second metal sheet 63 and the third metal sheet 64, the three moving positions of the second rotating rod 46 are controlled, realizing gear switching, and realizing the adjustment of the rotation accuracy of the adjustment knob 42 according to the sample thickness.

[0052] Embodiment 2

[0053] The second monitoring component 8 includes a temperature monitor 81 fixed on the surface of the regulator 13, and a trigger pointer 82 is arranged at the center of the temperature monitor 81. The trigger pointer 82 presses against the surface of the trigger switch seat 83, and the trigger switch seat 83 is fixed on the inner wall of the temperature monitor 81.

[0054] The compensation component 7 includes a third rotating rod 71 arranged above the needle pressing member 14. One end of the belt 56 is fixedly connected to the third rotating rod 71. A first bevel gear 72 is fixed on the outer wall of the third rotating rod 71, and a second bevel gear 73 is engaged with the bottom of the first bevel gear 72.

[0055] The bottom of the second bevel gear 73 is arranged on the surface of the threaded seat 74. A second screw rod 76 is threadedly connected inside the threaded seat 74. A seventh gear 75 is fixed on the outer wall of the threaded seat 74. An eighth gear 77 is engaged with the surface of the seventh gear 75. A fourth rotating rod 78 is fixed at the center of the eighth gear 77. The bottom of the fourth rotating rod 78 is connected to the output shaft of the second motor 79.

[0056] A fourth metal sheet 91 is fixed at the bottom of the fourth rotating rod 78, and an electromagnet ring 92 is arranged at the bottom of the fourth metal sheet 91. The electromagnet ring 92 is fixedly connected to the output shaft of the second motor 79.

[0057] When the motor 1 24 starts to work, the electromagnet ring 92 is energized. The energized electromagnet ring 92 generates magnetism and adsorbs the metal piece 4 91. The external temperature is monitored by the temperature monitor 81, triggering the trigger pointer 82 to rotate. The trigger pointer 82 presses against the trigger switch base 83, and the working duration of the motor 2 79 is controlled according to the trigger signal of the trigger switch base 83. The motor 2 79 drives the fourth rotating rod 78 to rotate synchronously. The fourth rotating rod 78 drives the eighth gear 77 to rotate. The eighth gear 77 drives the seventh gear 75 to rotate. The seventh gear 75 drives the threaded seat 74 to rotate. With the cooperation of the thread, the second screw rod 76 moves vertically. The second screw rod 76 drives the needle pressing member 14 to move vertically. The higher the temperature, the shorter the downward movement distance of the second screw rod 76. The lower the temperature, the longer the downward movement distance of the second screw rod 76, realizing the compensation operation of the movement distance of the needle pressing member 14, adapting to low-temperature and high-temperature environments, and reducing the risk of the environmental temperature affecting the hardness detection effect.

[0058] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0059] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rubber product hardness testing device, comprising: A base (11) and a measuring frame (12), wherein the measuring frame (12) is arranged on the top of the base (11), and an adjuster (13) is arranged on the surface of the measuring frame (12), a needle pressing member (14) is arranged at the bottom of the adjuster (13), and a support seat (15) is arranged on the surface of the base (11); It is characterized by: also including: A monitoring component (2) and a trigger component (3), wherein the monitoring component (2) is arranged on the surface of a support seat (15), and the trigger component (3) is arranged on the surface of the monitoring component (2); a sample to be tested is placed on the surface of the support seat (15); the thickness of the sample is monitored by the monitoring component (2), and the thickness is identified by the trigger component (3); An adjustment component (4), a docking component (5) and a switching component (6), wherein the adjustment component (4) is arranged on the back of the regulator (13), the docking component (5) is arranged inside the adjustment component (4), and the switching component (6) is arranged inside the docking component (5); the adjustment component (4) comprises an adjustment knob (42) arranged on the back of the regulator (13); and the rotation accuracy of the adjustment knob (42) and the pressing accuracy of the needle pressing member (14) are adjusted by switching the transmission speed of the adjustment knob (42) after rotation through the docking component (5) and the switching component (6); A compensation component (7) and a second monitoring component (8), wherein the compensation component (7) is arranged inside the regulator (13), and the second monitoring component (8) is arranged on the surface of the regulator (13). The external environment temperature is monitored by the second monitoring component (8), and the signal is transmitted to the compensation component (7) through a controller. The compensation component (7) implements a compensation operation for the moving distance of the pressing needle member (14) according to the signal.

2. The rubber product hardness testing device according to claim 1, characterized in that: The monitoring component 1 (2) comprises a lifting frame (21) slidably connected to the outer wall of the support seat (15), and a screw rod 1 (22) is internally threadedly connected to one side of the lifting frame (21), both ends of the screw rod 1 (22) are rotatably connected to a fixing frame 1 (23), the bottom of the fixing frame 1 (23) is fixed to the support seat (15), one end of the screw rod 1 (22) is fixedly connected to the output shaft of a motor 1 (24), the end surface of the motor 1 (24) is fixedly connected to the fixing frame 1 (23), the top of the lifting frame (21) is rotatably connected to a fixing plate (25) via a movable shaft, a push switch (26) is fixed to the bottom of the fixing plate (25), and a limit block (27) is provided on the side of the fixing plate (25), and the limit block (27) is fixed to the surface of the lifting frame (21).

3. The rubber product hardness testing device according to claim 2, characterized in that: The trigger assembly (3) comprises a trigger block (31) fixed to the side of the lifting frame (21), and the trigger block (31) is pressed against the surface of the gear adjustment seat (37), and the surface of the gear adjustment seat (37) is sequentially distributed with a gear switch 1 (32), a gear switch 2 (33) and a gear switch 3 (34), and a limit rod (35) is inserted into the other side of the lifting frame (21), and the two ends of the limit rod (35) are connected to the fixing frame 2 (36), and the bottom of the fixing frame 2 (36) is fixed to the support seat (15).

4. The rubber product hardness testing device according to claim 1, characterized in that: The adjusting knob (42) is rotatably connected to the inside of the protective cover (41), and the protective cover (41) is fixed to the back of the adjuster (13). A gear 1 (43) is fixed to the outer wall of the adjusting knob (42), and a gear 2 (44) is meshed with the surface of the gear 1 (43). A rotating rod 1 (45) is fixed to the center of the gear 2 (44), a gear 3 (47) is fixed to the middle end of the outer wall of the rotating rod 1 (45), and a gear 4 (48) is fixed to the side of the outer wall of the rotating rod 1 (45) away from the gear 2 (44).

5. The rubber product hardness testing device according to claim 4, characterized in that: The docking assembly (5) comprises a gear five (51) meshingly connected with the gear three (47), and a rotating rod two (46) is fixed at the center of the gear five (51), a gear six (52) cooperating with the gear four (48) is fixed on the outer wall of the rotating rod two (46), a belt (56) is slidably connected to the outer wall of the rotating rod two (46), and an insert ring (55) is movably connected to the tail of the rotating rod two (46).

6. The rubber product hardness testing device according to claim 5, characterized in that: The switching assembly (6) comprises a moving ring (61) slidably connected to the outer wall of the second rotating rod (46) through a slip ring (68), and the outer wall of the moving ring (61) is sequentially distributed with a metal sheet one (62), a metal sheet two (63) and a metal sheet three (64), the metal sheet one (62), the metal sheet two (63) and the metal sheet three (64) are arranged alternately, and the side edges of the metal sheet one (62), the metal sheet two (63) and the metal sheet three (64) are sequentially arranged An electromagnet seat 1 (65), an electromagnet seat 2 (66) and an electromagnet seat 3 (67) are arranged, the outer wall of the insert ring (55) is fixed to the inner wall of the protective cover (41), the inner wall of the insert ring (55) is provided with a sliding opening that cooperates with the electromagnet seat 1 (65), the electromagnet seat 2 (66) and the electromagnet seat 3 (67), the side of the electromagnet seat 1 (65) is fixed with an elastic rope (69), and the end face of the elastic rope (69) is fixed to the inner wall of the sliding opening.

7. The rubber product hardness testing device according to claim 1, characterized in that: The monitoring component 2 (8) comprises a temperature monitor (81) fixed on the surface of the regulator (13), and a trigger pointer (82) is arranged at the center of the temperature monitor (81), and the trigger pointer (82) is pressed against the surface of a trigger switch seat (83), and the trigger switch seat (83) is fixed on the inner wall of the temperature monitor (81).

8. The rubber product hardness testing device according to claim 5, characterized in that: The compensation assembly (7) comprises a rotating rod three (71) arranged above the needle pressing member (14), one end of the belt (56) is fixedly connected to the rotating rod three (71), a first bevel gear (72) is fixed to the outer wall of the rotating rod three (71), and a second bevel gear (73) is meshed at the bottom of the first bevel gear (72).

9. The rubber product hardness testing device according to claim 8, characterized in that: The bottom of the second bevel gear (73) is arranged on the surface of the threaded seat (74), the internal thread of the threaded seat (74) is connected to the second screw rod (76), the outer wall of the threaded seat (74) is fixed with the seventh gear (75), the surface of the seventh gear (75) is meshed with the eighth gear (77), the center of the eighth gear (77) is fixed with the fourth rotating rod (78), and the bottom of the fourth rotating rod (78) is connected to the output shaft of the second motor (79).

10. The rubber product hardness testing device according to claim 9, characterized in that: A metal sheet four (91) is fixed to the bottom of the rotating rod four (78), and an electromagnet ring (92) is provided at the bottom of the metal sheet four (91), and the electromagnet ring (92) is fixedly connected to the output shaft of the motor two (79).

Images