Defect detector for injection molding plastic part of loudspeaker

Abstract

The utility model discloses a loudspeaker injection molding plastic part defect detector, which relates to the visual inspection related field, and comprises a transmission assembly, a pressure-resistant assembly, a detection assembly and a material distribution assembly, the rear side of the upper end of the transmission assembly is fixedly connected with the pressure-resistant assembly, the upper end of the transmission assembly is fixedly connected with the detection assembly, and the material distribution assembly is fixedly connected with the transmission assembly. The front side of the upper end of the conveying assembly is fixedly connected with the material distributing assembly, the conveying assembly further comprises a support, and the rear side of the upper end of the support is fixedly connected with the pressure-resistant assembly; the first conveying belt is fixedly connected to the rear end of the support; the display controller is fixedly connected to the right end of the bracket; the second conveying belt is fixedly connected to the front end of the support; by arranging the transmission assembly capable of turning over the device needing to be detected, the device can turn over the device needing to be detected, the device can comprehensively detect the device, and the detection effect is good.

Description

Technical Field

[0001] This utility model relates to the field of visual inspection, specifically a defect detector for injection molded speaker parts. Background Technology

[0002] A loudspeaker is a transducer that converts electrical signals into sound signals, and its performance greatly affects sound quality. While the loudspeaker is the weakest component in an audio system, it is also one of the most crucial for achieving optimal sound effects. There are many types of loudspeakers, with prices varying significantly. Audio energy, through electromagnetic, piezoelectric, or electrostatic effects, causes the cone or diaphragm to vibrate and resonate with the surrounding air, producing sound. During loudspeaker production, defect detectors are used to inspect the plastic parts. Surface defect detection typically refers to the inspection of surface defects, employing advanced machine vision technology to detect blemishes, dents, scratches, color differences, and other defects on the workpiece surface.

[0003] For example, a rapid visual defect detector as described in (authorization announcement number CN222514555U) includes a conveyor frame, a motor fixedly connected to the side surface of the conveyor frame, a drive shaft fixedly connected to the output end of the motor, drive teeth fixedly connected to the side surface of the drive shaft, a chain rotatably connected to the side surface of the drive teeth, a drive roller fixedly connected to the side surface of the drive shaft, a conveyor belt rotatably connected to the side surface of the drive roller, and a driven shaft rotatably connected to the inner side wall of the conveyor frame.

[0004] The aforementioned device uses a conveyor belt, a placement frame, a gear table, and a rack plate to place cylindrical products in an orderly manner within the placement frame, preventing tipping and product accumulation that could cause blockages. However, the device lacks a mechanism to flip the device to be inspected, resulting in the device only being able to inspect the upper surface of the device and not the bottom surface, leading to poor inspection results. Utility Model Content

[0005] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides a defect detector for speaker injection molded parts.

[0006] This invention is implemented as follows: a defect detector for injection-molded speaker parts is constructed. The device includes a transmission component, a pressure-resistant component, a detection component, and a material distribution component. The upper rear side of the transmission component is fixedly connected to the pressure-resistant component, the upper end of the transmission component is fixedly connected to the detection component, and the upper front side of the transmission component is fixedly connected to the material distribution component. The transmission component further includes: a bracket, the upper rear side of which is fixedly connected to the pressure-resistant component; a first transmission belt, fixedly connected to the rear end of the bracket; a display controller, fixedly connected to the right end of the bracket; a second transmission belt, fixedly connected to the front end of the bracket; a buffer pad, fixedly connected to the transmission belts of the first and second transmission belts; a first motor, fixedly connected to the middle of the right end of the bracket; and a transparent flip-up acrylic plate, rotatably connected to the middle of the bracket.

[0007] Preferably, the pressure-resistant component includes: a slide, which is fixedly connected to the rear side of the upper end of the support; a slide groove, which is provided on the inner side of the left and right sides of the slide; an electric push rod, which is fixedly connected to the upper end of the slide; a pressure plate, which is slidably connected to the slide through the slide groove; a pressure detector, which is fixedly connected to the rear side of the upper end of the support and placed at the lower end of the slide; and a support plate, which is fixedly connected to the middle of the first conveyor belt and also placed at the lower end of the slide.

[0008] Preferably, the detection component includes: a detection frame, which is fixedly connected to the middle of the upper end of the support; a light-shielding net, which is fixedly connected to the front and rear ends of the detection frame; a first industrial camera, which is fixedly connected to the inner side of the rear end of the detection frame and is positioned on the upper side of the front end of the first conveyor belt; a second industrial camera, which is fixedly connected to the inner side of the front end of the detection frame and is positioned on the upper side of the rear end of the second conveyor belt; an illumination strip, which is fixedly connected to the left and right ends inside the detection frame; and a horizontal light strip, which is fixedly connected to the middle of the support and is positioned at the lower end of the transparent flip acrylic plate.

[0009] Preferably, the material distribution assembly includes: a material distribution frame, which is fixedly connected to the front end of the support; a second motor, which is fixedly connected to the upper rear end of the material distribution frame; a material distribution block, which is rotatably connected to the rear end of the material distribution frame; a frame box, which is fixedly connected to the upper end of the material distribution frame; a lighting lamp, which is fixedly connected to the lower end of the frame box; and a third industrial camera, which is fixedly connected to the lower end of the frame box and placed between the lighting lamps.

[0010] Preferably, the right end of the transparent flip acrylic plate is fixedly connected to the left end drive shaft of the first motor.

[0011] Preferably, the upper middle part of the pressure plate is fixedly connected to the lower telescopic rod of the electric push rod.

[0012] Preferably, the upper end of the material distribution block is fixedly connected to the lower drive shaft of the second motor.

[0013] This utility model has the following advantages: By providing an improved defect detector for speaker injection molded parts, this utility model offers the following improvements compared to similar devices:

[0014] The speaker injection molding component defect detector of this utility model is equipped with a transmission component that can flip the device to be inspected, so that the device can be flipped to perform a comprehensive inspection of the device, resulting in better inspection effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the transmission component structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the pressure-resistant component structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the detection component structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the material distribution component of this utility model.

[0020] The components include: transmission assembly-1, bracket-11, first transmission belt-12, display controller-13, second transmission belt-14, buffer pad-15, first motor-16, transparent flip acrylic sheet-17, pressure-resistant assembly-2, carriage-21, slide rail-22, electric push rod-23, pressure plate-24, pressure detector-25, support plate-26, detection assembly-3, detection frame-31, light-shielding net-32, first industrial camera-33, second industrial camera-34, lighting strip-35, horizontal light strip-36, material distribution assembly-4, material distribution rack-41, second motor-42, material distribution block-43, frame box-44, lighting lamp-45, third industrial camera-46, and receiving box-47. Detailed Implementation

[0021] The following is in conjunction with the appendix Figures 1-5The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0022] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] Example 1:

[0025] Please see Figures 1-5 The present invention relates to a defect detector for speaker injection molded parts, comprising a transmission assembly 1, a pressure-resistant assembly 2, a detection assembly 3, and a material distribution assembly 4. The upper rear side of the transmission assembly 1 is fixedly connected to the pressure-resistant assembly 2, the upper end of the transmission assembly 1 is fixedly connected to the detection assembly 3, and the upper front side of the transmission assembly 1 is fixedly connected to the material distribution assembly 4. The transmission assembly 1 also includes a bracket 11, the upper rear side of which is fixedly connected to the pressure-resistant assembly 2; a first transmission belt 12, which is fixedly connected to the rear end of the bracket 11; a display controller 13, which is fixedly connected to the right end of the bracket 11; a second transmission belt 14, which is fixedly connected to the front end of the bracket 11; a buffer pad 15, which is fixedly connected to the transmission belts of the first transmission belt 12 and the second transmission belt 14; a first motor 16, which is fixedly connected to the middle of the right end of the bracket 11; and a transparent flip acrylic plate 17, which is rotatably connected to the middle of the bracket 11. The right end of the transparent flip acrylic plate 17 is fixedly connected to the left drive shaft of the first motor 16.

[0026] The pressure-resistant component 2, the slide 21 is fixedly connected to the upper rear side of the bracket 11, the slide groove 22 is located on the inner side of the left and right sides of the slide 21, the electric push rod 23 is fixedly connected to the upper end of the slide 21, and the pressure plate 24 is slidably connected to the slide 21 through the slide groove 22. After the pressure detector 25 contacts the pressure plate 24, it can start to detect the pressure and send the detected pressure to the display controller 13 for processing and display through the data line. After the display controller 13 receives the data, it can control the electric push rod 23 to start and drive the pressure plate 24 to rise in time according to the pressure data to avoid the pressure plate 24 applying too much pressure to the speaker injection molded parts and causing damage. The pressure detector 25 is fixedly connected to the upper rear side of the bracket 11 and placed at the lower end of the slide 21. The support plate 26 is fixedly connected to the middle of the first conveyor belt 12 and is also placed at the lower end of the slide 21. The setting of the support plate 26 can prevent the speaker injection molded parts from moving when subjected to pressure. The middle of the upper end of the pressure plate 24 is fixedly connected to the telescopic rod at the lower end of the electric push rod 23.

[0027] The detection component 3 includes a detection frame 31 fixedly connected to the upper middle part of the support 11, a light-shielding net 32 ​​fixedly connected to the front and rear ends of the detection frame 31, which prevents external light sources from entering the detection frame 31 and shining on the speaker injection molding parts, causing reflections that affect the detection results, a first industrial camera 33 fixedly connected to the inner rear end of the detection frame 31, and the first industrial camera 33 is placed on the upper front end of the first conveyor belt 12, a second industrial camera 34 fixedly connected to the inner front end of the detection frame 31, and the second industrial camera 34 is placed on the upper rear end of the second conveyor belt 14, an illumination strip 35 fixedly connected to the left and right ends inside the detection frame 31, and a horizontal light strip 36 fixedly connected to the middle part of the support 11, and the horizontal light strip 36 is placed at the lower end of the transparent flip acrylic plate 17.

[0028] This utility model provides an improved defect detector for speaker injection molded parts, and its working principle is as follows:

[0029] First, when using this device, place it in the work area and then connect it to an external power source to provide the necessary electrical energy for its operation.

[0030] Secondly, when it is necessary to test the speaker injection molded parts, the speaker injection molded parts can be placed on the upper rear side of the first conveyor belt 12. Then, the display controller 13 controls the first conveyor belt 12 to start and transport the speaker injection molded parts to the lower end of the pressure plate 24. Then, the electric push rod 23 is controlled to start and drive the pressure plate 24 to move downward and contact the pressure detector 25. After the pressure detector 25 contacts the pressure plate 24, the pressure can be detected and the detected pressure can be sent to the display controller 13 for processing and display via a data cable. After the display controller 13 receives the data, it can control the electric push rod 23 to start and drive the pressure plate 24 to rise in a timely manner according to the pressure data to avoid the pressure plate 24 applying excessive pressure to the speaker injection molded parts and causing damage. After the pressure on the speaker injection molded parts is completed, the first conveyor belt 12 can be started again to move the speaker injection molded parts. The component falls onto the transparent flip acrylic plate 17, and then the lighting strip 35 and the first industrial camera 33 are activated. After the lighting strip 35 is activated, the inspection frame 31 is illuminated. After the first industrial camera 33 is activated, the speaker injection molded part after pressure is applied can be photographed to check for defects and the image data is sent to the display controller 13 for processing and display. If the speaker injection molded part is transparent, the horizontal light strip 36 can be activated to illuminate the bottom surface of the speaker injection molded part, which is convenient for detecting whether there are impurities inside the transparent speaker injection molded part. By applying pressure to the injection molded part, since the injection molded part is usually used for the shell, sealing ring or internal support structure in the speaker, the pressure test can verify whether it deforms or cracks when subjected to mechanical pressure (such as screw tightening, component extrusion) during the assembly process, so as to avoid assembly failure due to structural failure.

[0031] Third, when a comprehensive inspection of the speaker injection molded parts is required, the first motor 16 can be started to drive the transparent flip acrylic plate 17 to rotate, causing the speaker injection molded parts to flip and fall onto the second conveyor belt 14 to contact the buffer pad 15 for cushioning. Then, the second industrial camera 34 can be started to inspect whether there are defects on the other side of the speaker injection molded parts. After the inspection is completed, the second conveyor belt 14 can be started to transport the inspected speaker injection molded parts.

[0032] Example 2:

[0033] Please see Figures 1-5 Compared to Embodiment 1, this embodiment of the speaker injection molding part defect detector further includes: a material distribution assembly 4, a material distribution frame 41 fixedly connected to the front end of the support 11, a second motor 42 fixedly connected to the upper rear end of the material distribution frame 41, a material distribution block 43 rotatably connected to the rear end of the material distribution frame 41, a frame box 44 fixedly connected to the upper end of the material distribution frame 41, a lighting lamp 45 fixedly connected to the lower end of the frame box 44, a third industrial camera 46 fixedly connected to the lower end of the frame box 44 and placed between the lighting lamps 45, and the upper end of the material distribution block 43 fixedly connected to the lower end of the drive shaft of the second motor 42.

[0034] In this embodiment:

[0035] First, when it is necessary to classify the inspected speaker injection molded parts, the display controller 13 can process the data sent by the first industrial camera 33 and the second industrial camera 34 and control the second motor 42 to start according to whether there are defects. After the second motor 42 starts, it can drive the sorting block 43 to rotate clockwise or counterclockwise. When the sorting block 43 rotates counterclockwise, the intact speaker injection molded parts can be guided to be discharged from the left discharge hopper of the sorting rack 41 and fall into the left receiving box 47 for collection. When the sorting block 43 rotates clockwise, the intact speaker injection molded parts can be guided to be discharged from the right discharge hopper of the sorting rack 41 and fall into the right receiving box 47 for collection. At the same time, the lighting lamp 45 and the third industrial camera 46 can be controlled to start. After the lighting lamp 45 is started, it can illuminate the inside of the sorting rack 41. After the third industrial camera 46 is started, the classified speaker injection molded parts can be inspected again to avoid misjudgment.

[0036] This invention provides an improved defect detector for speaker injection molded parts. By incorporating a transmission component 1 that allows the device to be inspected to be flipped, the device can be flipped to perform a comprehensive inspection, resulting in better inspection performance.

[0037] The above describes the basic principles, main features, and advantages of this utility model. All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be detailed here.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A defect detector for injection molded loudspeaker parts, comprising a transmission assembly (1), a pressure-resistant assembly (2), a detection assembly (3), and a material distribution assembly (4), wherein the upper rear side of the transmission assembly (1) is fixedly connected to the pressure-resistant assembly (2), the upper end of the transmission assembly (1) is fixedly connected to the detection assembly (3), and the upper front side of the transmission assembly (1) is fixedly connected to the material distribution assembly (4), characterized in that: The transmission component (1) further includes: The bracket (11) is fixedly connected to the pressure-resistant component (2) at its upper rear end; The first transmission belt (12) is fixedly connected to the rear end of the bracket (11); Display controller (13), which is fixedly connected to the right end of bracket (11); The second transmission belt (14) is fixedly connected to the front end of the bracket (11); A buffer pad (15) is fixedly connected to the conveyor belts of the first conveyor belt (12) and the second conveyor belt (14); The first motor (16) is fixedly connected to the middle of the right end of the bracket (11); A transparent flip acrylic sheet (17) is rotatably connected to the middle of the bracket (11).

2. The loudspeaker injection-molded part defect detector of claim 1, wherein: The pressure-resistant component (2) includes: The slide (21) is fixedly connected to the rear side of the upper end of the bracket (11); Slide groove (22), the slide groove (22) is provided on the inner sides of the left and right sides of the slide frame (21); An electric push rod (23) is fixedly connected to the upper end of the slide (21); Pressure plate (24), which is slidably connected to slide frame (21) via slide groove (22); Pressure detector (25), which is fixedly connected to the rear side of the upper end of the bracket (11) and placed at the lower end of the slide (21); The support plate (26) is fixedly connected to the middle of the first conveyor belt (12) and is also placed at the lower end of the carriage (21).

3. The loudspeaker injection molded part defect detector of claim 2, wherein: The detection component (3) includes: The testing frame (31) is fixedly connected to the middle of the upper end of the bracket (11); A light-shielding net (32) is fixedly connected to the front and rear ends of the testing frame (31); The first industrial camera (33) is fixedly connected to the inner side of the rear end of the inspection frame (31) and is placed on the upper side of the front end of the first conveyor belt (12). The second industrial camera (34) is fixedly connected to the inner side of the front end of the inspection frame (31) and is placed on the upper side of the rear end of the second conveyor belt (14). Lighting strip (35), the lighting strip (35) is fixedly connected to the left and right ends inside the detection frame (31); A horizontal light strip (36) is fixedly connected to the middle of the bracket (11) and placed at the lower end of the transparent flip acrylic plate (17).

4. The loudspeaker injection molding defect detector of claim 3, wherein: The material distribution component (4) includes: The material distribution rack (41) is fixedly connected to the front end of the support (11); The second motor (42) is fixedly connected to the upper rear end of the material distribution frame (41); The material distribution block (43) is rotatably connected to the rear end of the material distribution frame (41); A frame box (44) is fixedly connected to the upper end of the material distribution rack (41); Lighting lamp (45), which is fixedly connected to the lower end of the frame box (44); The third industrial camera (46) is fixedly connected to the lower end of the frame box (44) and placed between the lighting lamps (45); The receiving box (47) is placed at the rear end of the material distribution rack (41).

5. The loudspeaker injection molded part defect detector of claim 1, wherein: The right end of the transparent flip acrylic plate (17) is fixedly connected to the left end drive shaft of the first motor (16).

6. The defect detector for speaker injection molded parts according to claim 2, characterized in that: The upper middle part of the pressure plate (24) is fixedly connected to the lower telescopic rod of the electric push rod (23).

7. The loudspeaker injection molded part defect detector of claim 4, wherein: The upper end of the material distribution block (43) is fixedly connected to the lower drive shaft of the second motor (42).

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