A visual inspection machine for appearance defects of watch cases

Abstract

The utility model discloses a visual inspection machine for appearance defects of watch cases, including: a material platform, a conveyor belt, a dust removal mechanism, a positioning mechanism, a shooting mechanism and a computer terminal; the dust removal mechanism includes a first sensor, a first limit rod and a blower, the first sensor is electrically connected to the first limit rod and the blower respectively, the first limit rod is arranged on the side of the first sensor close to the rear end of the conveyor belt, the blower is arranged above the conveyor belt, when the material platform passes the first sensor, the first limit rod extends and blocks the material platform, so that the blower faces the top of the material platform. By arranging a dust removal mechanism at the front end of the shooting mechanism, the embodiment of the utility model can remove dust from the watch case on the material platform before shooting, thereby avoiding as much as possible the dust and impurities on the watch case from affecting the accuracy of the appearance inspection of the watch case.

Description

Technical Field

[0001] The utility model relates to the technical field of watch detection equipment, in particular to a visual detection machine for appearance defects of a watch case. Background Art

[0002] Watches are common items in daily life. Watches are usually composed of movement, strap, case, dial, back cover, hands, and crown. Watches are usually for users to tell time and serve as decorations. They can also be an important item for a person to wear. Therefore, in order to ensure the integrity of the watch case, it is necessary to inspect the watch case for defects during the production and installation of the watch, such as whether there are scratches, stress marks, pits, protrusions and other defects. The inspection process is extremely important, and only good products can meet the shipping standards.

[0003] In the prior art, generally, an image of a watch case is captured by a camera device, and the image data is then transmitted to a computer terminal for comparison and analysis. Most cameras require the use of light to illuminate the watch case and then take pictures and samples. However, dust is easily accumulated on the surface of the watch case or in the grooves before taking pictures and samples. If it is not cleaned, it is very easy to affect the accuracy of appearance inspection. Utility Model Content

[0004] In view of this, the utility model provides a visual inspection machine for appearance defects of watch cases, which is used to solve the problem in the prior art that dust accumulates on the watch cases before photographing and sampling, which easily affects the inspection accuracy.

[0005] To achieve one or part or all of the above purposes or other purposes, the utility model proposes: a visual inspection machine for appearance defects of watch cases, comprising: a material table, a conveyor belt, a dust removal mechanism, a positioning mechanism, a shooting mechanism and a computer terminal;

[0006] The top of the material platform is used to place the watch case to be tested, the conveyor belt is used to transport the material platform, the dust removal mechanism and the positioning mechanism are respectively arranged on one side of the conveyor belt, the dust removal mechanism is close to the front end of the conveyor belt, the positioning mechanism is located at the rear end of the dust removal mechanism, the shooting mechanism is arranged above the positioning mechanism, and the computer terminal is used to receive the detection data of the shooting mechanism;

[0007] The dust removal mechanism includes a first sensor, a first limit rod and a wind tube, the first sensor is electrically connected to the first limit rod and the wind tube respectively, the first limit rod is arranged on the side of the first sensor close to the rear end of the conveyor belt, and the wind tube is arranged above the conveyor belt, when the material platform passes the first sensor, the first limit rod extends out and blocks the material platform, so that the wind tube faces the top of the material platform.

[0008] Preferably, the shooting mechanism includes a camera unit and a light module, and the light module is arranged around the lower end of the camera unit.

[0009] Preferably, the positioning mechanism includes a second sensor and a second limit rod, the second sensor is electrically connected to the second limit rod, the second limit rod is arranged on the side of the second sensor close to the rear end of the conveyor belt, when the material table passes the second sensor, the second limit rod extends and blocks the material table, so that the lower end of the camera unit faces the top of the material table.

[0010] Preferably, a positioning notch is provided on the material table, and the positioning notch is V-shaped, and the end of the first limiting rod and the end of the second limiting rod can both be connected to the positioning notch.

[0011] Preferably, the first limiting rod and the second limiting rod are both electric telescopic rods.

[0012] Preferably, it further comprises a limiting groove, the conveyor belt is arranged in the limiting groove in the same direction, and the width of the limiting groove is adapted to the width of the material platform.

[0013] Preferably, a bifurcated channel is provided on a groove wall on one side of the limiting groove close to the end of the conveyor belt, and the bifurcated channel is communicated with the conveyor belt.

[0014] Preferably, the bifurcated channel is vertically connected to the limiting groove.

[0015] Preferably, a pushing mechanism is provided on the other side of the limiting groove, and the pushing mechanism is used to transfer the material platform from the conveyor belt to the bifurcated channel.

[0016] Preferably, the pushing mechanism comprises a third sensor and a push rod, and the third sensor is electrically connected to the push rod and the computer terminal respectively.

[0017] Implementing the embodiments of the present utility model will have the following beneficial effects:

[0018] After adopting the above-mentioned watch case appearance defect visual inspection machine, by setting a dust removal mechanism at the front end of the shooting mechanism, the watch case on the material table can be dusted before shooting, thereby avoiding as much as possible the dust and impurities on the watch case from affecting the accuracy of the watch case appearance inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] in:

[0021] Figure 1 This is a schematic diagram of the overall structure of the watch case appearance defect visual inspection machine proposed by the utility model;

[0022] Figure 2 It is a structural schematic diagram of the dust removal mechanism of the visual inspection machine for appearance defects of watch cases proposed by the utility model;

[0023] Figure 3 This is a structural schematic diagram of the positioning mechanism of the watch case appearance defect visual inspection machine proposed by the utility model;

[0024] Figure 4 This is a structural schematic diagram of the material table of the watch case appearance defect visual inspection machine proposed by the utility model.

[0025] Figure numerals: 10, material table; 11, positioning notch; 20, conveyor belt; 21, limiting groove; 22, bifurcated channel; 30, dust removal mechanism; 31, first sensor; 32, first limiting rod; 33, air duct; 40, positioning mechanism; 41, second sensor; 42, second limiting rod; 50, shooting mechanism; 51, camera unit; 52, lighting module; 60, pushing mechanism; 61, third sensor; 62, pushing rod; 70, computer terminal. DETAILED DESCRIPTION

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present invention or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0027] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0028] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0029] like Figure 1-4 The example shown is an embodiment provided by the utility model.

[0030] The present invention provides a visual inspection machine for appearance defects of a watch case, comprising: a material table 10, a conveyor belt 20, a dust removal mechanism 30, a positioning mechanism 40, a shooting mechanism 50 and a computer terminal 70, referring to Figure 1 As shown, the top of the material table 10 is used to place the watch case to be inspected, the conveyor belt 20 is used to transport the material table 10, the dust removal mechanism 30 and the positioning mechanism 40 are respectively arranged on one side of the conveyor belt 20, the dust removal mechanism 30 is close to the front end of the conveyor belt 20, that is, the end of the conveyor belt 20 for feeding, and the positioning mechanism 40 is located at the rear end of the dust removal mechanism 30. The shooting mechanism 50 is arranged above the positioning mechanism 40, and the computer terminal 70 is used to receive the detection data of the shooting mechanism 50. The computer terminal 70 can be purchased directly on the market, and has the functions of storing, comparing and analyzing image data. It can record and store the watch case image taken by the shooting mechanism 50, and then compare and analyze it with the standard good watch case, and can judge whether the watch case is a good product. The image recognition method can also adopt the existing technology, or directly purchase image recognition software from the market to realize image comparison and judge whether the watch case is a good product. Specifically, referring to Figure 2As shown, the dust removal mechanism 30 includes a first sensor 31, a first limit rod 32 and a wind tube 33. The first sensor 31 is electrically connected to the first limit rod 32 and the wind tube 33 respectively. The first limit rod 32 and the wind tube 33 can both respond to the sensing signal of the first sensor 31 by opening or closing. It can be understood that the first limit rod 32 needs to receive the signal of the first sensor 31 to respond to the operation. The first sensor 31 first senses the passage of the material platform 10, and the first limit rod 32 then blocks the material platform 10. Therefore, the first limit rod 32 is arranged on the side of the first sensor 31 close to the rear end of the conveyor belt 20, and the wind tube 33 is arranged above the conveyor belt 20 and corresponds to the height of the case on the material platform 10. When the material platform 10 passes the first sensor 31, the first limit rod 32 extends out and blocks the material platform 10, so that the wind tube 33 is facing the top of the material platform 10. When the dust removal operation is completed, the first limit rod 32 retracts, so that the material platform 10 can continue to move backward with the conveyor belt 20. It is worth mentioning that the air blower 33 preferably uses an air suction type, which can directly suck away the dust on the watch case. The air blowing type air blower 33 easily blows the dust everywhere, and the dust removal effect is slightly worse than that of the air suction type air blower 33. After adopting the above-mentioned visual inspection machine for appearance defects of watch cases, by setting a dust removal mechanism 30 at the front end of the shooting mechanism 50, the watch case on the material table 10 can be dusted before shooting, thereby avoiding the dust and impurities on the watch case from affecting the accuracy of the appearance inspection of the watch case as much as possible.

[0031] Specifically, refer to Figure 1 As shown, the shooting mechanism 50 includes a camera unit 51 and a lighting module 52. The lighting module 52 is arranged around the lower end of the camera unit 51. The surrounding lighting module 52 can illuminate the case in all directions to reduce the shadow on the surface of the case to improve the shooting effect. The shooting mechanism 50 can generally use an industrial camera. After the shooting is completed, the camera unit 51 will transmit the captured image data to the computer terminal 70. The positioning mechanism 40 includes a second sensor 41 and a second limit rod 42, and the second sensor 41 is electrically connected to the second limit rod 42. The second limit rod 42 is arranged on the side of the second sensor 41 close to the rear end of the conveyor belt 20. The second sensor 41 and the second limit rod 42 have similar working principles to the first sensor 31 and the first limit rod 32. When the material table 10 passes the second sensor 41, the second limit rod 42 extends out and blocks the material table 10, so that the lower end of the camera unit 51 is facing the top of the material table 10, or more precisely, is aligned with the watch case to be detected on the top of the material table 10. After the camera unit 51 completes shooting, the second limit rod 42 retracts, so that the material table 10 can continue to move backward with the conveyor belt 20.

[0032] Further, refer to Figure 4As shown, a positioning notch 11 is provided on the material table 10, and the positioning notch 11 is V-shaped. The end of the first limiting rod 32 and the end of the second limiting rod 42 can be connected to the positioning notch 11, and the ends of the first limiting rod 32 and the second limiting rod 42 are directly pressed into the positioning notch 11, which can not only limit the material table 10 in the front and back directions, but also limit the material table 10 in the up and down directions, which can avoid shaking of the material table 10 and the conveyor belt 20 when rubbing against each other, thereby reducing the impact on the shooting effect.

[0033] Further, refer to Figure 2-3 As shown, the first limiting rod 32 and the second limiting rod 42 are both electric telescopic rods. The electric telescopic rods are used to limit the material platform 10, which can limit or separate from the material platform 10 more quickly and shorten the operation stroke.

[0034] Further, refer to Figure 1 As shown, the watch case appearance defect visual inspection machine also includes a limit groove 21. The conveyor belt 20 is arranged in the same direction in the limit groove 21. The length of the limit groove 21 matches the conveyor belt 20, and the width of the limit groove 21 is adapted to the width of the material table 10. The material table 10 can be limited so that the material table 10 can move along the conveyor belt 20 without deviating from the angle or falling off the conveyor belt 20.

[0035] Further, refer to Figure 1 As shown, a forked channel 22 is arranged on the groove wall on one side of the limiting groove 21 close to the end of the conveyor belt 20, the forked channel 22 is connected to the conveyor belt 20, the forked channel 22 is vertically connected to the limiting groove 21, and a pushing mechanism 60 is arranged on the other side of the limiting groove 21, and the pushing mechanism 60 is used to transfer the material platform 10 from the conveyor belt 20 to the forked channel 22. Specifically, the pushing mechanism 60 includes a third sensor 61 and a push rod 62. The third sensor 61 is electrically connected to the push rod 62 and the computer terminal 70 respectively. When the computer terminal 70 completes the analysis of the watch case on the material table 10, it will obtain two judgment results of whether the watch case is a good product or a defective product. According to different results, the computer terminal 70 can feed back the signal to the third sensor 61, thereby controlling the push rod 62 to push the good product or the defective product into the forked channel 22. If it is set that the product pushed into the forked channel 22 is a good product, the third sensor 61 and the push rod 62 will not react to the material table 10 carrying defective products, so that it can continue to move along the conveyor belt 20.

[0036] The visual inspection machine for appearance defects of watch cases provided by the utility model has the following inspection process: first, a material platform 10 equipped with a watch case to be inspected is placed on a conveyor belt 20 from the front end; when the material platform 10 passes through a first sensor 31, a first limit rod 32 stops the material platform 10, and a blower 33 removes dust from the watch case on the material platform 10; after dust removal, the first limit rod 32 retracts to allow the material platform 10 to continue to move to the front of the second sensor 41; at this time, the second limit rod 42 extends out to stop the material platform 10; the camera unit 51 cooperates with the light module 52 to shoot the watch case on the material platform 10, and the shot image is displayed. The image data is transmitted to the computer terminal 70, and the computer terminal 70 analyzes and compares the image data. After the shooting is completed, the second limit rod 42 retracts to allow the material table 10 to continue to move. During this process, the computer terminal 70 will determine whether the case on the material table 10 is a good product or a defective product, and transmit the data to the third sensor 61. When the material table 10 moves to the third sensor 61, the third sensor 61 pushes the material table 10 into the bifurcated channel 22 or allows the material table 10 to pass according to the judgment result of the computer terminal 70, thereby separating the good products from the defective products and completing the detection.

[0037] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A visual inspection machine for appearance defects of watch cases, characterized in that: include: A material table (10), a conveyor belt (20), a dust removal mechanism (30), a positioning mechanism (40), a photographing mechanism (50) and a computer terminal (70); The top of the material platform (10) is used to place the watch case to be tested, the conveyor belt (20) is used to transport the material platform (10), the dust removal mechanism (30) and the positioning mechanism (40) are respectively arranged on one side of the conveyor belt (20), the dust removal mechanism (30) is close to the front end of the conveyor belt (20), the positioning mechanism (40) is located at the rear end of the dust removal mechanism (30), the shooting mechanism (50) is arranged above the positioning mechanism (40), and the computer terminal (70) is used to receive the detection data of the shooting mechanism (50); The dust removal mechanism (30) comprises a first sensor (31), a first limiting rod (32) and a wind tube (33); the first sensor (31) is electrically connected to the first limiting rod (32) and the wind tube (33) respectively; the first limiting rod (32) is arranged on a side of the first sensor (31) close to the rear end of the conveyor belt (20); the wind tube (33) is arranged above the conveyor belt (20); when the material platform (10) passes the first sensor (31), the first limiting rod (32) extends out and blocks the material platform (10), so that the wind tube (33) is directly opposite to the top of the material platform (10).

2. The watch case appearance defect visual inspection machine according to claim 1, characterized in that: The shooting mechanism (50) comprises a camera unit (51) and a light module (52), wherein the light module (52) is arranged around the lower end of the camera unit (51).

3. The watch case appearance defect visual inspection machine according to claim 2, characterized in that: The positioning mechanism (40) includes a second sensor (41) and a second limit rod (42), the second sensor (41) is electrically connected to the second limit rod (42), the second limit rod (42) is arranged on the side of the second sensor (41) close to the rear end of the conveyor belt (20), when the material platform (10) passes the second sensor (41), the second limit rod (42) extends out and blocks the material platform (10), so that the lower end of the camera unit (51) is opposite to the top of the material platform (10).

4. The watch case appearance defect visual inspection machine according to claim 3, characterized in that: The material platform (10) is provided with a positioning notch (11), the positioning notch (11) is V-shaped, and the end of the first limiting rod (32) and the end of the second limiting rod (42) can both be connected to the positioning notch (11).

5. The watch case appearance defect visual inspection machine according to claim 4, characterized in that: The first limiting rod (32) and the second limiting rod (42) are both electric telescopic rods.

6. The watch case appearance defect visual inspection machine according to claim 1, characterized in that: It also comprises a limiting groove (21), the conveyor belt (20) is arranged in the same direction in the limiting groove (21), and the width of the limiting groove (21) is adapted to the width of the material platform (10).

7. The watch case appearance defect visual inspection machine according to claim 6, characterized in that: A bifurcated channel (22) is provided on a groove wall on one side of the limiting groove (21) close to the end of the conveyor belt (20), and the bifurcated channel (22) is connected to the conveyor belt (20).

8. The watch case appearance defect visual inspection machine according to claim 7, characterized in that: The bifurcated channel (22) is vertically connected to the limiting groove (21).

9. The watch case appearance defect visual inspection machine according to claim 8, characterized in that: A pushing mechanism (60) is provided on the other side of the limiting groove (21), and the pushing mechanism (60) is used to transfer the material platform (10) from the conveyor belt (20) to the bifurcated channel (22).

10. The watch case appearance defect visual inspection machine according to claim 9, characterized in that: The push mechanism (60) comprises a third sensor (61) and a push rod (62), and the third sensor (61) is electrically connected to the push rod (62) and the computer terminal (70) respectively.

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