A rubber raw material quality detection device for a seal

Abstract

The application discloses a kind of rubber raw material quality detection devices for seal, including rack, height adjusting lever assembly is equipped on the both sides of rack, multiple quality detection components are matched on height adjusting lever assembly, quality detection component is set in the application, when rubber plate passes through quality detection component, if rubber plate exists bubble or rubber plate height exceeds maximum error value, rubber plate pushes and extends touch plate, and makes elastic tablet slide to the end of second electrical connector, so that the resistance in the circuit of sliding variable resistance component is smaller, current increases, and current monitoring module in main circuit in parallel circuit, by measuring main circuit current, judge rubber plate quality condition, and send alarm through control module, in this way, the specific position of defective product can be quickly located, so that operating personnel can quickly handle defective product, and it is beneficial to subsequent demarcation cutting rubber seal position, reduce resource waste.

Description

Technical Field

[0001] This invention belongs to the field of rubber seal testing technology, and in particular relates to a quality testing device for rubber raw materials used in seals. Background Technology

[0002] The cutting and manufacturing process of rubber seals is an important part of the rubber seal production process. It involves cutting the molded rubber seals according to specified dimensions and shapes to meet different application requirements.

[0003] Preparation before cutting: 1. Product design and planning: Based on customer needs and product design drawings, determine the shape, size, and quantity of the rubber seals to provide basic data for the cutting work; 2. Tool and equipment preparation: Select appropriate cutting tools and equipment, such as cutting machines, cutting blades, molds, etc., and ensure they are in good working condition; 3. Raw material inspection: Conduct a preliminary inspection of the molded rubber sheet to ensure its quality meets the cutting requirements, such as no defects (bubbles, dents, etc.) and accurate dimensions.

[0004] However, in the production of existing equipment, the thickness of the rolled product is usually measured manually using a thickness measuring instrument. Although this method is highly accurate, the measurement range of the height measuring instrument is small, which limits the area that a person can measure in a single operation. In addition, it is difficult to measure the middle part of the product strip when measuring manually. Therefore, the efficiency of manual measurement is not high and cannot be synchronized with the production speed of the equipment. At the same time, manual measurement also has certain blind spots, which prevents the product from receiving comprehensive quality inspection.

[0005] Furthermore, in current production, the randomness of air bubbles generated during product manufacturing makes it too costly to inspect them with precision machinery or high-precision equipment. Therefore, this inspection is mostly done manually, by observing personnel to find out-of-specification air bubbles and puncture them. However, because the air bubbles are of uniform color, their visual effect on the material strip is not obvious, and visual fatigue can easily occur during inspection, leading to oversights and affecting the production quality of the rubber sheet.

[0006] Therefore, there is a need for a quality inspection device for rubber raw materials used in sealing components that can detect, upload, and record data using intelligent sensors. Summary of the Invention

[0007] The purpose of this invention is to provide a quality testing device for rubber raw materials used in sealing components, so as to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a quality inspection device for rubber raw materials used in sealing components, comprising a frame, height adjustment rod assemblies on both sides of the frame, multiple quality inspection components fitted on the height adjustment rod assemblies, a detection positioning plate below the quality inspection components, each quality inspection component including a spring inner ring fixing plate fixedly connected at one end to the height adjustment rod assembly, an outer ring elastic plate integrally connected to the other end of the spring inner ring fixing plate, an extension contact plate fixedly connected to the end of the outer ring elastic plate, a micrometer provided between the inner wall of the outer ring elastic plate and the outer wall of the spring inner ring fixing plate, the micrometer being fixedly connected to the outer ring elastic plate, and a sliding resistance assembly fixed to the upper end face of the spring inner ring fixing plate;

[0009] The sliding rheostat assembly includes an insulating mounting plate fixed to the upper end of the inner ring fixing plate of the spring sheet. A resistance wire is fixedly mounted on the insulating mounting plate. A fixing rod is provided above the resistance wire. One end of the fixing rod passes through the inner ring fixing plate of the spring sheet and is fixedly connected to the outer ring elastic plate of the spring sheet. An elastic pressure plate is provided at the other end of the fixing rod. The elastic pressure plate and the resistance wire are a mating mechanism. A second electrical connector is provided at the end of the resistance wire away from the elastic pressure plate. A first electrical connector is provided on the elastic pressure plate.

[0010] Furthermore: the inner ring fixing plate, the outer ring elastic plate, and the extended contact plate constitute a vortex-shaped spring, and the micrometer is used to measure the vortex pitch between the inner ring fixing plate and the outer ring elastic plate.

[0011] Furthermore, the sliding rheostat component in the multiple quality detection components is connected in parallel through the second electrical connector and the first electrical connector, and a current monitoring module is electrically connected in the parallel circuit.

[0012] Furthermore: the detection positioning plate includes a positioning plate fixed on the frame, the two ends of the positioning plate are arc-shaped, the upper end face of the positioning plate has multiple air holes, an air chamber is fixed below the positioning plate, and an exhaust port is provided at the bottom of the air chamber.

[0013] Furthermore, the quality inspection component also includes a fixed mounting plate located below the sliding rheostat assembly, with one end of the fixed mounting plate fixed to the height adjustment rod assembly, and the other end of the fixed mounting plate rotatably fitted with a swing contact rod assembly. The swing contact rod assembly is provided with a fixed switch assembly that is a cooperating mechanism with the swing contact rod assembly, and the fixed switch assembly is fixed on one side wall of the fixed mounting plate.

[0014] Furthermore: the fixed switch assembly includes a fixed switch fixed to a fixed mounting plate, and a third electrical connector is fixed to one end of the fixed switch.

[0015] Furthermore: the swing contact rod assembly includes a fixed shaft rod fixed to one end of the fixed mounting plate, a bushing sleeve is sleeved on the outer wall of the fixed shaft rod, and a torsion spring is provided between the bushing sleeve and the fixed shaft rod. A swing contact rod is fixed to one end of the bushing sleeve, and one end of the swing contact rod is a mating mechanism with the fixed switch. A fourth electrical connector is fixed on the swing contact rod, and a support rod is fixed below the bushing sleeve. A monitoring roller is rotatably mated to one end of the support rod.

[0016] Furthermore: the outer wall of the monitoring roller is provided with multiple annular protrusions, and the bottom arc of the extended contact plate is provided with multiple slots that cooperate with the annular protrusions on the outer wall of the monitoring roller.

[0017] Furthermore: the sliding rheostat components in the multiple quality detection components are connected in parallel through the second electrical connector and the first electrical connector, and a current monitoring module is connected in series in each branch, and the current monitoring module in each branch is electrically connected to the control module.

[0018] Furthermore, the fixed switch assembly and the swing contact rod assembly set in the multiple quality detection components are connected in series through the fourth electrical connector and the third electrical connector, and a current monitoring module is electrically connected in the series circuit.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. The quality detection component of this invention, when the rubber plate passes through the quality detection component, if there are air bubbles in the rubber plate or the height of the rubber plate exceeds the maximum error value, the rubber plate pushes the extension contact plate, causing the extension contact plate to deflect. When the extension contact plate deflects, it drives the fixing rod to move in the direction of rubber plate movement, causing the elastic pressure plate to slide towards one end of the second electrical connector, thereby reducing the resistance in the circuit where the sliding rheostat component is located and increasing the current. The current monitoring module in the main circuit of the parallel circuit detects the unevenness of air bubbles in the rubber plate through the physical contact between the extension contact plate and the rubber plate, and changes the state of the extension contact plate by the friction between the rubber plate and the extension contact plate, thereby causing the entire spring to undergo physical deformation. Then, the physical change signal is amplified and transmitted to the control module by the electrical signal. The control module then analyzes the quality condition of the rubber plate, obtains the result, and issues an alarm signal.

[0021] 2. In this invention, a displacement monitoring module is installed at the closing point of each fixed switch assembly and swing contact rod assembly. The control module determines whether the rubber sheet thickness meets the standard by sensing the closing state through the displacement monitoring module. If it does not meet the standard, the non-compliant area is marked and uploaded to the control module via the network. In this way, the specific location of defective products can be quickly located, allowing operators to quickly process defective products. It is also beneficial for subsequently marking the location of cutting rubber seals and reducing resource waste. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a rubber raw material quality testing device for sealing components according to the present invention;

[0024] Figure 2 This is a top view of a rubber raw material quality testing device for sealing components according to the present invention;

[0025] Figure 3 This is the present invention. Figure 2 A sectional view along the middle AA;

[0026] Figure 4 This is the present invention. Figure 3 A magnified view of area B in the middle;

[0027] Figure 5 This is a schematic diagram of the structure of the quality inspection component of the present invention;

[0028] Figure 6 This is the present invention. Figure 5 A magnified view of area C in the middle;

[0029] Figure 7 This is the present invention. Figure 5 A magnified view of region D in the middle;

[0030] Figure 8 This is a schematic diagram illustrating the debugging principle of the quality inspection component of the present invention;

[0031] Figure 9 This is a circuit connection diagram of Embodiment 1 of the sliding rheostat component of the present invention;

[0032] Figure 10 This is a circuit connection diagram of Embodiment 2 of the sliding rheostat component of the present invention.

[0033] Figure 11 This is a circuit connection diagram of Embodiment 1 of the swing contact rod assembly of the present invention.

[0034] Figure 12 This is a schematic diagram of the testing process of a rubber raw material quality testing device for sealing components according to the present invention.

[0035] In the attached diagram, the following are the reference numerals: 1. Frame; 2. Detection positioning plate; 3. Height adjustment rod assembly; 4. Quality inspection assembly; 5. Calibration mold; 21. Positioning plate; 22. Air chamber; 23. Exhaust port; 31. Adjustment support rod; 32. Detection assembly mounting plate; 41. Inner ring fixing plate of spring; 42. Outer ring elastic plate of spring; 43. Extension contact plate; 44. Micrometer; 45. Sliding rheostat assembly; 46. Fixed mounting plate; 47. Fixed switch assembly; 48. Swing contact rod assembly; 5. 1. Upper limit of thickness error indication area; 52. Steam drum indication area; 53. Lower limit of thickness error indication area; 451. Fixed rod; 452. Elastic pressure plate; 453. First electrical connector; 454. Insulating mounting plate; 455. Resistance wire; 456. Second electrical connector; 471. Fixed switch; 472. Third electrical connector; 481. Monitoring roller; 482. Support rod; 483. Bushing; 484. Swinging contact rod; 485. Fourth electrical connector; 486. Fixed shaft. Detailed Implementation

[0036] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0037] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] The invention will be further described below with reference to the accompanying drawings: Figures 1-12As shown, a quality inspection device for rubber raw materials used in sealing components includes a frame 1, which is located between the outlet of a rubber sheet calender or vulcanizing machine and a material winding mechanism. Height adjustment rod assemblies 3 are provided on both sides of the frame 1, and multiple quality inspection components 4 are fitted on the height adjustment rod assemblies 3. The height adjustment rod assemblies 3 include an adjustment support rod 31 and an inspection component mounting plate 32. The adjustable support rod 31 is used to fine-tune the overall height of the detection component mounting plate 32. A detection positioning plate 2 is located below the quality detection component 4, serving as the detection reference. The position of the detection positioning plate 2 is fixed, and the contact surface between the detection positioning plate 2 and the material undergoes mirror polishing to reduce detection errors. The quality detection component 4 includes a spring inner ring fixing plate 41, one end of which is fixedly connected to the height adjustment rod assembly 3. The spring inner ring fixing plate 41 provides a fixed support. An outer ring elastic plate 42 is integrally connected to the other end of the spring inner ring fixing plate 41. The spring inner ring fixing plate 41 and the outer ring elastic plate 42 form a vortex structure. An extension contact plate 43 is fixedly connected to the end of the outer ring elastic plate 42. The rubber plate to be tested passes between the bottom arc surface of the extension contact plate 43 and the detection positioning plate 2. The elastic structure composed of the inner ring fixing plate 41, the outer ring elastic plate 42, and the extension contact plate 43 makes the extension contact plate 43 more likely to deflect under external force. A micrometer 44 is provided between the inner wall of the outer ring elastic plate 42 and the outer wall of the inner ring fixing plate 41, and the micrometer 44 is fixedly connected to the outer ring elastic plate 42. Adjusting the micrometer 44 can change the worm pitch between the outer ring elastic plate 42 and the inner ring fixing plate 41, thereby adjusting the distance between the bottom arc surface of the extension contact plate 43 and the detection positioning plate 2. A sliding variable resistance assembly 45 is fixed on the upper end surface of the inner ring fixing plate 41.

[0039] The sliding resistance assembly 45 includes an insulating mounting plate 454 fixed to the upper end face of the inner ring fixing plate 41 of the spring sheet. A resistance wire 455 is fixedly mounted on the insulating mounting plate 454. A fixing rod 451 is provided above the resistance wire 455. One end of the fixing rod 451 passes through the inner ring fixing plate 41 of the spring sheet and is fixedly connected to the outer ring elastic plate 42 of the spring sheet. A clearance hole is provided on an outer wall of the inner ring fixing plate 41 of the spring sheet. When the extension contact plate 43 deflects, it drives the fixing rod 451 to move. An elastic pressure plate 452 is provided at the other end of the fixing rod 451. The elastic pressure plate 452 and the resistance wire 455 are a cooperating mechanism. The elastic pressure plate 452 provided on the fixing rod 451 is always in contact with the resistance wire 455 under the elastic action of its own structure, and forms a sliding resistance circuit with the resistance wire 455. A second electrical connector 456 is provided at the end of the resistance wire 455 away from the elastic pressure plate 452. A first electrical connector 453 is provided on the elastic pressure plate 452.

[0040] As one embodiment of the present invention, such as Figure 4-7As shown: The sliding rheostat component 45 in the multiple quality detection components 4 is connected in parallel through the second electrical connector 456 and the first electrical connector 453, and a current monitoring module is electrically connected in the parallel circuit. The current monitoring module includes an integrated current sensor and other intelligent sensor components, etc., which are mainly used for current detection and uploading the detection results to the control module (the control module is an integrated data processing center that can receive signals and issue corresponding working instructions to each module). When detecting the rubber sheet, multiple sets of quality detection components 4 are required. The multiple sets of sliding rheostat components 45 are connected in parallel through the commonly used 24V weak current line of the equipment, with the positive terminal connected to the second electrical connector 456 and the negative terminal connected to the first electrical connector 453. The current monitoring module is connected in series in the main circuit of the parallel circuit to monitor the current change in the parallel circuit. Finally, the data is networked and transmitted to the control module commonly used in automated equipment for recording and storage.

[0041] As one embodiment of the present invention, such as Figure 2-4 As shown: The detection positioning plate 2 includes a positioning plate 21 fixed on the frame 1. The two ends of the positioning plate 21 are arc-shaped. Multiple air holes are opened on the upper end surface of the positioning plate 21. An air chamber 22 is fixed below the positioning plate 21. An exhaust port 23 is provided at the bottom of the air chamber 22. The upper end surface and the periphery of the positioning plate 21 are mirror polished. The inlet end and the outlet end are arc-shaped to facilitate the movement of the rubber plate. The exhaust port 23 is connected to a vacuum generator. By pumping air, a negative pressure is formed in the air chamber 22. When the rubber plate passes the upper end surface of the positioning plate 21, the rubber plate is adsorbed through the air holes opened on the positioning plate 21, so as to avoid the rubber plate from bulging and wrinkling during the movement, which would affect the thickness detection.

[0042] In specific work, use such as Figure 8The calibration mold 5 shown is used to calibrate the quality inspection component 4. The thickness error upper limit indication area 51 of the calibration mold 5 is placed between the extension contact plate 43 and the positioning plate 21. The micrometer 44 is adjusted so that the arc bottom of the extension contact plate 43 is tangent to the upper surface of the thickness error upper limit indication area 51 of the calibration mold 5. At this time, the height between the bottom of the extension contact plate 43 and the positioning plate 21 is the maximum passing height. When the rubber plate passes the quality inspection component 4, if there are air bubbles in the rubber plate or the height of the rubber plate exceeds the maximum error value, the rubber plate pushes the extension contact plate 43, causing the extension contact plate 43 to... When the extension contact plate 43 deflects, it drives the fixed rod 451 to move in the direction of the rubber plate, causing the elastic pressure plate 452 to slide towards one end of the second electrical connector 456. This reduces the resistance and increases the current in the circuit where the sliding rheostat assembly 45 is located. The current monitoring module in the main circuit of the parallel circuit measures the main circuit current to determine the quality of the rubber plate and issues an alarm through the control module: if the current of multiple sliding rheostat assemblies 45 changes and the main circuit current changes significantly, the rubber plate thickness exceeds the standard; if the current of a few sliding rheostat assemblies 45 changes little, there are air bubbles in the rubber plate.

[0043] As one embodiment of the present invention, such as Figure 4-7 As shown: The quality inspection component 4 also includes a fixed mounting plate 46 located below the sliding rheostat component 45. One end of the fixed mounting plate 46 is fixed to the height adjustment rod component 3, and the other end of the fixed mounting plate 46 is rotatably fitted with a swing contact rod component 48. The swing contact rod component 48 is provided with a fixed switch component 47 that is a cooperating mechanism with the swing contact rod component 48. The fixed switch component 47 is fixed to one side wall of the fixed mounting plate 46. The fixed switch component 47 includes a fixed switch 471 fixed to the fixed mounting plate 46. A spring pressure plate is fixed to the cooperating end of the fixed switch 471 and the swing contact rod component 48. A third electrical connector 472 is fixed to one end of the fixed switch 471. The third electrical connector 472 is electrically connected to the spring pressure plate. The swing contact rod component 4... 8 includes a fixed shaft 486 fixed to one end of a fixed mounting plate 46. A bushing 483 is sleeved on the outer wall of the fixed shaft 486, and a torsion spring is provided between the bushing 483 and the fixed shaft 486. A swing contact rod 484 is fixed to one end of the bushing 483, and one end of the swing contact rod 484 is a mating mechanism with the fixed switch 471. The mating point between the swing contact rod 484 and the fixed switch 471 is in elastic contact and is electrically connected through an elastic sheet. Under the action of the torsion spring, the swing contact rod 484 tends to move away from the fixed switch 471. A fourth electrical connector 485 is fixed on the swing contact rod 484. A support rod 482 is fixedly welded to the lower outer wall of the bushing 483. The end of the support rod 482 is an L-shaped shaft, and a monitoring roller 481 is rotatably fitted on the shaft.

[0044] As one embodiment of the present invention, such as Figure 7As shown: The outer wall of the monitoring roller 481 is provided with multiple annular protrusions, and the bottom arc of the extension contact plate 43 is provided with multiple slots that cooperate with the annular protrusions on the outer wall of the monitoring roller 481. When the monitoring roller 481 cooperates with the extension contact plate 43, the bottom of the annular protrusions extends beyond the slots, and the annular protrusions provided on the monitoring roller 481 are made of a flexible material that can deform.

[0045] As one embodiment of the present invention, such as Figure 11 As shown: The fixed switch assembly 47 and the swing contact rod assembly 48 in the multiple quality detection components 4 are connected in series through the fourth electrical connector 485 and the third electrical connector 472, and a current monitoring module is electrically connected in the series circuit. The multiple fixed switch assemblies 47 and the swing contact rod assembly 48 are connected in series through the commonly used 24V weak current line of the equipment, with the positive terminal connected to the fourth electrical connector 485 and the negative terminal connected to the third electrical connector 472. A current monitoring module is connected in series in the main circuit to monitor the current change in the parallel circuit and transmit the data to the control module commonly used in the automation equipment for storage.

[0046] In specific work, use such as Figure 8 The calibration mold 5 shown is used to calibrate the quality inspection component 4. The front end of the calibration mold 5 has an inclined surface, which corresponds to the thickness error lower limit indication area 53 at the lower end of the monitoring roller 481. The inclined surface of the calibration mold 5 is aligned with the thickness error lower limit indication area 53. A monitoring roller 481 of appropriate size is selected so that the annular protrusion on the monitoring roller 481 is tangent to the front inclined surface of the calibration mold 5. At this time, the distance between the lower end face of the monitoring roller 481 and the positioning plate 21 is the minimum thickness of the rubber sheet. When the rubber sheet passes the quality inspection component 4, if the rubber sheet of normal thickness passes through, the rubber sheet pushes against the monitoring roller 481. When the measuring roller 481 is in operation, the swing contact rod 484 closes with the fixed switch 471. If the height of the rubber plate is lower than the minimum error value, the monitoring roller 481 disengages from the rubber plate. Under the action of the torsion spring, the bushing 483 deflects, causing the swing contact rod 484 to disengage from the fixed switch 471. This disconnects the circuit formed by the fixed switch assembly 47 and the swing contact rod assembly 48. The current monitoring module in the series circuit measures the main circuit current to determine the quality of the rubber plate and issues an alarm through the control module. By observing the closing status of each set of fixed switch assemblies 47 and swing contact rod assemblies 48, areas with substandard thickness can be identified.

[0047] Second embodiment, such as Figure 10 , 12As shown: the sliding rheostat components 45 in the multiple quality inspection components 4 are connected in parallel through the second electrical connector 456 and the first electrical connector 453, and a current monitoring module is connected in series in each branch. The current monitoring module in each branch is electrically connected to the control module. Each branch sliding rheostat component 45 is equipped with a current monitoring module. The control module uses multiple current monitoring data to determine the location of air bubbles or areas where the thickness exceeds the standard, which facilitates operators to detect problems in a timely manner and analyze and adjust the production process for defective products.

[0048] A displacement monitoring module is provided at the closing point of the fixed switch assembly 47 and the swing contact rod assembly 48 in the multiple quality detection components 4. The control module senses the closing state of 48 through the displacement monitoring module to determine whether the thickness of the rubber plate meets the standard. If it does not meet the standard, the non-compliant area is marked at the same time.

[0049] The working principle and usage process of this invention: This device is used to perform quality inspection on the extended vulcanized rubber sheet used for cutting sealing parts. The material to be inspected is fed into the equipment. When the rubber sheet passes through the quality inspection component 4, if there are air bubbles in the rubber sheet or the height of the rubber sheet exceeds the maximum error value, the rubber sheet pushes against the extension contact plate 43, causing the extension contact plate 43 to deflect. When the extension contact plate 43 deflects, it drives the fixing rod 451 to move in the direction of rubber sheet movement, causing the elastic pressure plate 452 to slide towards one end of the second electrical connector 456, thereby reducing the resistance and increasing the current in the circuit where the sliding rheostat component 45 is located. The current monitoring module in the main circuit of the parallel circuit judges the quality of the rubber sheet by measuring the main circuit current and issues an alarm through the control module: if the current of multiple sliding rheostat components 45 changes and the current of the main circuit changes greatly, the thickness of the rubber sheet exceeds the standard; if the current of a few sliding rheostat components 45 changes little, there are air bubbles in the rubber sheet.

[0050] When the rubber sheet passes through the quality inspection component 4, if the rubber sheet of normal thickness passes through, the swing contact rod 484 closes with the fixed switch 471 when the rubber sheet pushes against the monitoring roller 481. If the height of the rubber sheet is lower than the minimum error value, the monitoring roller 481 disengages from the rubber sheet, and the bushing 483 deflects under the action of the torsion spring, causing the swing contact rod 484 to disengage from the fixed switch 471. This disconnects the circuit formed by the fixed switch component 47 and the swing contact rod component 48. The current monitoring module in the series circuit judges the quality of the rubber sheet by measuring the main circuit current and issues an alarm through the control module. By observing the closing status of each group of fixed switch components 47 and swing contact rod components 48, areas with substandard thickness are identified.

[0051] The foregoing has shown and described 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 embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A quality inspection device for rubber raw materials used in sealing components, comprising a frame (1), height adjustment rod assemblies (3) on both sides of the frame (1), a plurality of quality inspection components (4) fitted on the height adjustment rod assemblies (3), and a detection positioning plate (2) provided below the quality inspection components (4), characterized in that: The quality detection assembly (4) comprises a spring inner ring fixed plate (41) fixedly connected with the height adjusting rod assembly (3) at one end, a spring outer ring elastic plate (42) integrally connected at the other end of the spring inner ring fixed plate (41), an extension touch plate (43) fixedly connected at the end of the spring outer ring elastic plate (42), and a micrometer (44) arranged between the inner wall of the spring outer ring elastic plate (42) and the outer wall of the spring inner ring fixed plate (41), wherein the micrometer (44) is fixedly connected with the spring outer ring elastic plate (42), and a sliding variable resistance assembly (45) is fixedly arranged on the upper end surface of the spring inner ring fixed plate (41); The sliding variable resistance assembly (45) comprises an insulating mounting plate (454) fixedly arranged on the upper end surface of the spring inner ring fixed plate (41), an electric resistance wire (455) fixedly arranged on the insulating mounting plate (454), a fixed rod (451) arranged above the electric resistance wire (455), wherein one end of the fixed rod (451) penetrates through the spring inner ring fixed plate (41) and is fixedly connected with the spring outer ring elastic plate (42), the other end of the fixed rod (451) is provided with an elastic pressing piece (452), the elastic pressing piece (452) and the electric resistance wire (455) are a matching mechanism, the end of the electric resistance wire (455) away from the elastic pressing piece (452) is provided with a second electric contact (456), and the elastic pressing piece (452) is provided with a first electric contact (453); The quality detection assembly (4) further comprises a fixed mounting plate (46) arranged below the sliding variable resistance assembly (45), wherein one end of the fixed mounting plate (46) is fixedly arranged on the height adjusting rod assembly (3), and the other end of the fixed mounting plate (46) is rotatably connected with a swing touch rod assembly (48), the swing touch rod assembly (48) is provided with a fixed switch assembly (47) which is a matching mechanism with the swing touch rod assembly (48), and the fixed switch assembly (47) is fixedly arranged on one side wall of the fixed mounting plate (46); The fixed switch assembly (47) comprises a fixed switch (471) fixedly arranged on the fixed mounting plate (46), one end of the fixed switch (471) is fixedly provided with a third electric contact (472), the swing touch rod assembly (48) comprises a fixed shaft rod (486) fixedly arranged at one end of the fixed mounting plate (46), a shaft sleeve (483) is sleeved on the outer wall of the fixed shaft rod (486), a torsional spring is arranged between the shaft sleeve (483) and the fixed shaft rod (486), one end of the swing touch rod (484) is rotatably connected with the fixed switch (471), the swing touch rod (484) is fixedly provided with a fourth electric contact (485), a supporting rod (482) is fixedly arranged below the shaft sleeve (483), one end of the supporting rod (482) is rotatably connected with a monitoring roller (481), a plurality of annular protrusions are arranged on the outer wall of the monitoring roller (481), and a plurality of notches matched with the annular protrusions arranged on the outer wall of the monitoring roller (481) are arranged on the bottom circular arc of the extension touch plate (43).

2. The rubber raw material quality detection device for a seal according to claim 1, characterized by: The inner ring fixed plate (41), the outer ring elastic plate (42) and the extension touch plate (43) constitute a spiral spring, and the micrometer (44) is used for measuring the distance between the inner ring fixed plate (41) and the outer ring elastic plate (42).

3. The rubber raw material quality detection device for a seal according to claim 1, characterized by: The sliding variable resistance components (45) in the plurality of quality detection components (4) are connected in parallel through the second electric connectors (456) and the first electric connectors (453), and the parallel circuit is electrically connected with the current monitoring modules.

4. The rubber raw material quality detection device for a seal according to claim 3, characterized by: The detection positioning plate (2) comprises a positioning plate (21) fixed on the rack (1), the two ends of the positioning plate (21) are arc-shaped, a plurality of air holes are formed in the upper end surface of the positioning plate (21), and an air warehouse (22) is fixed below the positioning plate (21), and the bottom of the air warehouse (22) is provided with an exhaust interface (23).

5. The rubber raw material quality detection device for a seal according to claim 1, characterized by: The sliding variable resistance components (45) in the plurality of quality detection components (4) are connected in parallel through the second electric connectors (456) and the first electric connectors (453), and the parallel circuit is electrically connected with the current monitoring modules.

6. The rubber raw material quality detection device for a seal according to claim 1, characterized by: The fixed switch components (47) and the swing touch rod components (48) in the plurality of quality detection components (4) are connected in series through the fourth electric connectors (485) and the third electric connectors (472), and the series circuit is electrically connected with the current monitoring modules.

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