Silencing sheet thickness detection device

Abstract

The utility model discloses a noise reduction sheet thickness detection device, and belongs to the technical field of noise reduction sheet thickness detection. A silencing sheet thickness detection device comprises a frame body, the frame body is provided with a driving assembly, a first transmission assembly, a second transmission assembly and a detection assembly, the first transmission assembly and the second transmission assembly are integrally distributed in a T shape, the first transmission assembly firstly transmits a to-be-detected silencing sheet and then transmits the to-be-detected silencing sheet to the detection assembly, and the second transmission assembly transmits the to-be-detected silencing sheet to the detection assembly. And the detection assembly is used for detecting whether the thickness of the silencing piece is qualified or not, if yes, the first transmission assembly continues to transmit the silencing piece, and if the detected thickness is not qualified, the detection assembly transfers the unqualified silencing piece to the second transmission assembly. According to the utility model, the thickness of the silencing sheet can be automatically detected, qualified products and inferior-quality products can be separated, the qualified products or the inferior-quality products can be automatically transmitted, the device can be adapted to a silencing sheet production line, manual operation is not needed, and the detection efficiency and the detection accuracy are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of sound-absorbing sheet thickness detection technology, and more specifically, to a sound-absorbing sheet thickness detection device. Background Technology

[0002] Brake pad diaphragms are a crucial component of automotive braking systems, significantly impacting their lifespan. Applying too many or too few diaphragms can affect both the brake pad's performance and lifespan. However, due to current manufacturing processes, errors such as applying too many or too few diaphragms occasionally occur. To eliminate these production errors, a brake pad diaphragm thickness monitoring device is needed to detect whether each brake pad has any defects such as over-application or under-application.

[0003] Chinese patent document CN216977778U discloses a brake pad muffler thickness detection device, including a frame, a support platform, a cylinder, a probe, and a displacement sensor. The support platform is located below the frame and is used to support the brake pad muffler. The cylinder is mounted on the frame above the support platform, and a probe is installed at the end of the cylinder. The probe can move vertically above the support platform with the movement of the cylinder piston. The displacement sensor is installed on the side of the cylinder, and a magnetic ring is provided on the piston of the cylinder so that the displacement sensor can sense the displacement of the piston.

[0004] In the existing technology, each test requires manual placement of the muffler to be tested onto the testing device, and the tested muffler needs to be removed after the test is completed, making the testing process cumbersome. In view of this, we propose a muffler thickness testing device. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] The purpose of this invention is to provide a device for detecting the thickness of a sound-absorbing sheet, so as to solve the problem of cumbersome detection steps mentioned in the background art.

[0007] 2. Technical Solution

[0008] A sound damper thickness detection device includes a frame, on which a drive component, a first transmission component, a second transmission component, and a detection component are provided. The first transmission component and the second transmission component are arranged in a T-shape. The first transmission component first transmits the sound damper to be detected. The detection component is used to detect whether the thickness of the sound damper is qualified. If it is qualified, the first transmission component continues to transmit the sound damper. If the thickness is not qualified, the detection component transfers the unqualified sound damper to the second transmission component.

[0009] Preferably, the first transmission component includes two first guard plates disposed on the frame, a first drive roller is movably disposed on the two first guard plates, a first transmission belt is movably connected to the first drive roller, and a notch is provided in the middle of one of the first guard plates.

[0010] Preferably, the second transmission component includes two second guard plates disposed on the frame, the ends of the two second guard plates being aligned with the notch in the middle of the first guard plate, the second guard plates being provided with second drive rollers, the second drive rollers being movably connected to a second transmission belt, and the ends of the second transmission belt being located below the first transmission belt.

[0011] Preferably, the drive assembly includes a dual-axis motor mounted on the frame, wherein one output shaft of the dual-axis motor is connected to the first drive roller.

[0012] Preferably, the drive assembly further includes a drive shaft movably mounted on the frame, one end of the drive shaft meshing with the other output shaft of the dual-axis motor via gears, and the other end of the drive shaft meshing with the second drive roller via bevel gears.

[0013] Preferably, the detection component includes a mounting strip disposed on the first protective plate, and the mounting strip is provided with three infrared length measuring instruments, which are located on one side of the notch in the first protective plate.

[0014] Preferably, the detection component further includes an electric telescopic rod disposed on another protective plate, the output end of which is provided with a push block, the push block being adapted to the notch of the first protective plate.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. In this utility model, three infrared length measuring instruments first measure the height H of the distance from the upper surface of the first conveyor belt. Then, the three infrared length measuring instruments measure the height H of the distance from the upper surface of the sound-absorbing sheet transmitted on the first conveyor belt. The average value of the three H values ​​is calculated. The difference between H values ​​is used to calculate the thickness of the sound-absorbing sheet. If the thickness meets the previously set specification, the electric telescopic rod does not work. If the thickness exceeds the previously set specification, the electric telescopic rod drives the push block to push the defective product through the notch of the first guard plate into the second conveyor belt. The second conveyor belt completes the transmission of the defective product. The qualified sound-absorbing sheet continues to be transmitted by the first conveyor belt. By setting the first and second transmission components in a T-shape distribution, in conjunction with the detection device, the thickness of the sound-absorbing sheet can be automatically detected. At the same time, qualified products and defective products can be separated, realizing the automatic transmission of qualified or defective products. This device can be adapted to the sound-absorbing sheet production line, does not require manual operation, and greatly improves the detection efficiency and accuracy. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 3 This is a top view of the overall structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the overall side view structure of this utility model;

[0022] The following are the labels in the diagram: 1. Frame; 2. Drive assembly; 3. First transmission assembly; 4. Second transmission assembly; 5. Detection assembly; 201. Dual-axis motor; 202. Drive shaft; 301. First guard plate; 302. First drive roller; 303. First transmission belt; 401. Second guard plate; 402. Second drive roller; 403. Second transmission belt; 501. Mounting strip; 502. Infrared length measuring instrument; 503. Electric telescopic rod; 504. Push block. Detailed Implementation

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component 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 this utility model.

[0024] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Please see Figure 1-4 This utility model provides a technical solution:

[0027] A sound damper thickness detection device includes a frame 1, on which a drive assembly 2, a first transmission assembly 3, a second transmission assembly 4, and a detection assembly 5 are provided. The first transmission assembly 3 and the second transmission assembly 4 are arranged in a T-shape. The first transmission assembly 3 first transmits the sound damper to be detected. The detection assembly 5 is used to detect whether the thickness of the sound damper is qualified. If it is qualified, the first transmission assembly 3 continues to transmit the sound damper. If the thickness is not qualified, the detection assembly 5 transfers the unqualified sound damper to the second transmission assembly 4.

[0028] In this invention, by setting up a T-shaped first transmission component 3 and a second transmission component 4, in conjunction with a detection device, the thickness of the sound-absorbing sheet can be automatically detected. At the same time, qualified products can be separated from defective products, and qualified or defective products can be automatically transferred. This device can be adapted to the sound-absorbing sheet production line, does not require manual operation, and greatly improves the detection efficiency and accuracy.

[0029] Preferably, the first transmission component 3 includes two first guard plates 301 disposed on the frame 1, a first drive roller 302 movably disposed on the two first guard plates 301, a first transmission belt 303 movably connected to the first drive roller 302, and a notch is opened in the middle of one of the first guard plates 301.

[0030] In actual use, the first drive roller 302 rotates continuously, and the first drive roller 302 drives the first conveyor belt 303 to rotate forward continuously, realizing the initial transmission of the noise reduction sheet to be tested and the subsequent transmission of the qualified noise reduction sheet.

[0031] Preferably, the second transmission assembly 4 includes two second guard plates 401 disposed on the frame 1. The ends of the two second guard plates 401 are aligned with the notch in the middle of the first guard plate 301. A second drive roller 402 is disposed on the second guard plate 401. A second transmission belt 403 is movably connected to the second drive roller 402. The end of the second transmission belt 403 is located below the first transmission belt 303.

[0032] It should be noted that in actual use, the second drive roller 402 rotates continuously, and the second drive roller 402 drives the second transmission belt 403 to rotate. The second transmission belt 403 is used to transport defective products that fail the inspection. Since the end of the second transmission belt 403 is located below the first transmission belt 303, it is convenient to transfer defective products to the second transmission belt 403.

[0033] Preferably, the drive assembly 2 includes a dual-axis motor 201 mounted on the frame 1. One output shaft of the dual-axis motor 201 is connected to the first drive roller 302. The drive assembly 2 also includes a transmission shaft 202 movably mounted on the frame 1. One end of the transmission shaft 202 meshes with the other output shaft of the dual-axis motor 201 via gears, and the other end of the transmission shaft 202 meshes with the second drive roller 402 via bevel gears.

[0034] In this invention, one output shaft of the dual-axis motor 201 directly drives the first drive roller 302 to rotate, thereby driving the first conveyor belt 303 to rotate continuously forward. The other output shaft of the dual-axis motor 201 drives the transmission shaft 202 to rotate through a set of meshing gears. The transmission shaft 202 drives the second drive roller 402 to rotate through a set of meshing bevel gears. The second drive roller 402 directly drives the second conveyor belt 403 to rotate, thereby conveying defective products.

[0035] It should be noted that by setting a dual-axis motor 201, one motor can drive the first transmission belt 303 and the second transmission belt 403 to rotate simultaneously, which saves the manufacturing cost of this device and ensures that the first transmission belt 303 and the second transmission belt 403 rotate synchronously.

[0036] Preferably, the detection component 5 includes a mounting strip 501 disposed on the first guard plate 301, and three infrared length measuring instruments 502 are provided on the mounting strip 501. The three infrared length measuring instruments 502 are located on one side of the notch of the first guard plate 301. The detection component 5 also includes an electric telescopic rod 503 disposed on another first guard plate 301. The output end of the electric telescopic rod 503 is provided with a push block 504, and the push block 504 is adapted to the notch of the first guard plate 301.

[0037] In this invention, three infrared length measuring instruments 502 first measure the height H1 of the distance from the upper surface of the first conveyor belt 303, and then the three infrared length measuring instruments 502 measure the height H2 of the distance from the upper surface of the sound-absorbing sheet transmitted on the first conveyor belt 303, and calculate the three H... 20 The average value, using H1 and H 20 The thickness of the sound-absorbing sheet is determined by the difference. If the thickness meets the previously set specifications, the electric telescopic rod 503 will not work. If the thickness exceeds the previously set specifications, the electric telescopic rod 503 will drive the push block 504 to push the defective product through the notch of the first guard plate 301 onto the second conveyor belt 403. The second conveyor belt 403 then completes the transfer of the defective product.

[0038] In this embodiment, the supporting hydraulic system, solenoid valves, and pipelines can also be provided by the manufacturer. In addition, the circuit control system between the three infrared length measuring instruments 502 and the electric telescopic rod 503 is implemented using a control chip. The electronic components and modules involved here are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated. The content protected by this utility model does not involve any improvement to the internal structure and method.

[0039] Working principle: One output shaft of the dual-axis motor 201 directly drives the first drive roller 302 to rotate, thereby driving the first conveyor belt 303 to rotate continuously forward. The other output shaft of the dual-axis motor 201 drives the transmission shaft 202 to rotate through a set of meshing gears. The transmission shaft 202 drives the second drive roller 402 to rotate through a set of meshing bevel gears. The second drive roller 402 directly drives the second conveyor belt 403 to rotate. The silencer to be tested is placed on the first conveyor belt 303. Three infrared length measuring instruments 502 first measure the height H1 from the upper surface of the first conveyor belt 303, and then measure the height H2 from the upper surface of the silencer transmitted on the first conveyor belt 303. The three length measuring instruments 502 calculate the height H1 of the silencer. 20 The average value, using H1 and H 20 The thickness of the sound-absorbing sheet is determined by the difference. If the thickness meets the previously set specifications, the electric telescopic rod 503 will not work. If the thickness exceeds the previously set specifications, the electric telescopic rod 503 will drive the push block 504 to push the defective product through the notch of the first guard plate 301 onto the second conveyor belt 403. The second conveyor belt 403 completes the transfer of the defective product, and the sound-absorbing sheet that passes the test will continue to be transferred by the first conveyor belt 303.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sound deadening sheet thickness detection device characterized by: The utility model provides a sound -absorbing piece thickness detection device, including frame (1), which is equipped with drive assembly (2), first transmission assembly (3), second transmission assembly (4) and detection assembly (5) on frame (1), first transmission assembly (3) and second transmission assembly (4) are integral T type distribution, first transmission assembly (3) first transmission sound -absorbing piece to be detected, detection assembly (5) is used to detect whether sound -absorbing piece thickness is qualified, if qualified, first transmission assembly (3) continues to transmit sound -absorbing piece, if detecting thickness is unqualified, detection assembly (5) shifts unqualified sound -absorbing piece to second transmission assembly (4).

2. The device for detecting the thickness of a sound-absorbing sheet according to claim 1, wherein: The first transmission assembly (3) includes two first guards (301) disposed on the frame (1), two first guards (301) are movably provided with a first drive roller (302), the first drive roller (302) is movably connected with a first transmission belt (303), and a notch is formed in the middle of one of the first guards (301).

3. The device of claim 2, wherein: The second transmission assembly (4) includes two second guards (401) disposed on the frame (1), the end portions of the two second guards (401) are aligned with the middle notch of the first guard (301), the second guard (401) is provided with a second drive roller (402), the second drive roller (402) is movably connected with a second transmission belt (403), and the end portion of the second transmission belt (403) is located below the first transmission belt (303).

4. The device for detecting the thickness of a sound-absorbing sheet according to claim 3, characterized in that: The drive assembly (2) includes a double-shaft motor (201) disposed on the frame (1), one output shaft of the double-shaft motor (201) is connected with the first drive roller (302).

5. The device of claim 4, wherein: The drive assembly (2) further includes a transmission shaft (202) movably disposed on the frame (1), one end of the transmission shaft (202) is meshed with the other output shaft of the double-shaft motor (201) through a gear, and the other end of the transmission shaft (202) is meshed with the second drive roller (402) through a bevel gear.

6. A device for detecting the thickness of a sound attenuating panel according to claim 5, wherein: The detection assembly (5) includes a mounting strip (501) disposed on the first guard (301), the mounting strip (501) is provided with three infrared length measuring instruments (502), and the three infrared length measuring instruments (502) are located on one side of the notch of the first guard (301).

7. A device for detecting the thickness of a sound attenuating panel according to claim 6, wherein: The detection assembly (5) further includes an electric telescopic rod (503) disposed on the other guard (301), the output end of the electric telescopic rod (503) is provided with a push block (504), and the push block (504) is matched with the notch of the first guard (301).

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