Polyhedral product appearance detection equipment

Abstract

The utility model discloses polyhedral product appearance detection equipment, which can realize rapid and effective appearance detection, and comprises a first conveying assembly which is provided with a first conveying belt used for bearing and conveying a to-be-detected product and is provided with a first conveying tail end; the second conveying assembly comprises a second conveying belt, the second conveying assembly is provided with a conveying initial end and a conveying transfer end in the conveying direction of the second conveying belt, and the conveying initial end is located over the first conveying tail end and spaced by a set distance in the vertical direction; the second conveying assembly forms a vacuum adsorption cavity in the conveying direction of the second conveying belt from the conveying initial end to the conveying transfer end, a plurality of adsorption openings arrayed in the conveying direction are formed in the second conveying belt, and the multiple adsorption openings can communicate with the vacuum adsorption cavity. The vacuum adsorption cavity can generate negative pressure and generate an adsorption effect on the to-be-detected product through the adsorption opening; and the first detection element is arranged below the second conveying belt.

Description

Technical Field

[0001] This application relates to the field of automation, and in particular to a device for inspecting the appearance of polyhedral products. Background Technology

[0002] During the production process, product appearance inspection is often required. Taking a rectangular product (e.g., made of ceramic sheet, such as a piezoelectric ceramic sheet) as an example, it has six outer surfaces. After the products are arranged sequentially on a conveyor belt of an assembly line, generally only the two surfaces on either side of the conveyor belt and the top surface can be detected. However, the two surfaces at both ends of the conveyor belt and the bottom surface are generally difficult to detect because the products are arranged in a straight line. Therefore, the two surfaces at both ends of the arrangement direction cannot be illuminated by a fixed camera. This problem is usually solved by adjusting the product's placement angle. In addition, the bottom surface of the product cannot be illuminated by the camera because it is directly supported by the conveyor belt. This problem is usually solved by rotating the product 360 degrees. This reduces inspection efficiency, and the flipping and handling actions can easily damage the product and cause defects.

[0003] Therefore, it is necessary to design a new appearance inspection device to solve the above problems. Utility Model Content

[0004] The purpose of this application is to provide a polyhedral product appearance inspection device that can achieve rapid and effective appearance inspection.

[0005] To achieve the aforementioned objective, this application provides the following technical solution:

[0006] A polyhedral product appearance inspection device, comprising:

[0007] The first conveying assembly is provided with a first conveyor belt for carrying and conveying the products to be inspected, and is provided with a first conveying end.

[0008] The second conveying component includes a second conveyor belt. The second conveying component is provided with a conveying initial end and a conveying intermediate end along the conveying direction of the second conveyor belt. The conveying initial end is located directly above the first conveying end and is spaced apart by a predetermined distance in the vertical direction.

[0009] The second conveying component forms a vacuum adsorption cavity in the region from the initial end to the intermediate end of the conveying on the second conveyor belt. Multiple adsorption ports are formed on the second conveyor belt along the conveying direction. The multiple adsorption ports can communicate with the vacuum adsorption cavity. The vacuum adsorption cavity can generate negative pressure and adsorb the product to be inspected through the adsorption ports.

[0010] The first detection element is equipped with a detection head capable of transmitting or receiving signals in the up-down direction. The detection head is located below the second conveyor belt and at any position between the initial end and the intermediate end of the conveyor belt in the conveying direction of the second conveyor belt.

[0011] Furthermore, it also includes: at least one second detection element disposed on at least one side of the first conveyor belt along the conveying direction.

[0012] Furthermore, the conveying direction of the second conveyor belt is arranged to intersect with the conveying direction of the second conveyor belt.

[0013] Furthermore, the conveying direction of the second conveyor belt is set perpendicular to the conveying direction of the second conveyor belt.

[0014] Furthermore, a transparent isolation plate is fixed between the detection head and the first conveyor belt in the vertical direction.

[0015] Furthermore, the first detection element includes a detection device along the conveying direction of the second conveyor belt. The detection device is disposed on one side of the second conveyor belt and forms a detection angle along the width direction of the second conveyor belt. The detection head includes a prism component, which converts the detection angle of the detection device along the width direction of the second conveyor belt into a vertical direction.

[0016] Furthermore, the first detection element is a CCD detector.

[0017] Furthermore, the second conveying component is also provided with a conveying end along the conveying direction of the second conveyor belt, and the conveying end is located in front of the conveying transfer end along the conveying direction of the second conveyor belt.

[0018] The third conveying component includes a third conveyor belt, which has a third initial conveying section along the vertical direction. The third initial conveying section is located directly below the section between the transfer end and the end end of the second conveyor belt.

[0019] Furthermore, it also includes: at least one third detection element, disposed on at least one side of the third conveyor belt along the conveying direction.

[0020] At least one fourth detection element is disposed above the first conveyor belt or above the third conveyor belt.

[0021] Furthermore, the conveying direction of the third conveyor belt is the same as that of the second conveyor belt;

[0022] The second conveyor belt does not adsorb the product to be inspected in the area between the transfer end and the end of the conveying process.

[0023] Compared with the prior art, the beneficial effect of this application is that it enables rapid and effective appearance inspection. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of the polyhedral product appearance inspection equipment of this application.

[0025] Figure 2 yes Figure 1 A three-dimensional schematic diagram of a multi-faceted product appearance inspection equipment viewed from another angle.

[0026] Figure 3 yes Figure 2 Enlarged view of the structure within the dashed box.

[0027] Figure 4 yes Figure 3 Enlarged view of the internal structure of the dashed coil.

[0028] Figure 5 This is a partial exploded perspective view of the polyhedral product appearance inspection equipment of this application, specifically showing a perspective schematic diagram of the second conveying component during separation.

[0029] Figure 6 yes Figure 5 Enlarged view of the structure within the dashed box.

[0030] Figure 7 yes Figure 5 A three-dimensional schematic diagram of the second conveying component separated from the appearance inspection equipment for polyhedral products, viewed from another angle. Detailed Implementation

[0031] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0032] Please refer to Figures 1 to 7 As shown, this application discloses a polyhedral product appearance inspection device, comprising a first conveying component 1, a second conveying component 3, a third conveying component 4, and multiple detection elements that cooperate with each other. Preferably, the first conveying component 1, the second conveying component 3, the third conveying component 4, and the multiple detection elements are all assembled on a frame (not shown) to form a complete inspection line. This polyhedral product appearance inspection device can be used to perform fully automated appearance inspection on a product 9 having multiple surfaces, such as a ceramic sheet or other polyhedral product.

[0033] Specifically, the first conveying component 1 is provided with a first conveyor belt 11 for carrying and conveying the product 9 to be inspected, and is provided with a first conveying end 110 and a first conveying beginning 111 (see reference). Figure 5 (As shown). The first conveyor belt 11 can be driven by a motor (unlabeled). The product 9 to be inspected can be moved onto the first conveyor belt 11 by setting the loading module (unlabeled) at the initial position of the first conveyor 111.

[0034] The second conveying component 3 includes a second conveyor belt 31, which can also be driven by a motor (not labeled). The second conveying component 3 is provided with a conveying initiation end 310, a conveying transfer end 311, and a conveying end 312 along the conveying direction of the second conveyor belt 31 (see reference). Figure 1 , Figure 5 and Figure 7 As shown in the figure, the initial conveying end 310 is located directly above the first end conveying end 110 and is spaced a predetermined distance in the vertical direction. A preferred embodiment is that the conveying direction of the second conveyor belt 31 is intersected with the conveying direction of the second conveyor belt 31. A more preferred embodiment is that the conveying direction of the second conveyor belt 31 is perpendicular to the conveying direction of the second conveyor belt 31 (also an example shown in the accompanying drawings of this application).

[0035] Furthermore, the second conveying component 3 forms a vacuum adsorption chamber (unlabeled) in the region from the initial end 310 to the intermediate end 311 in the conveying direction of the second conveyor belt 31. A plurality of adsorption ports 30 are formed on the second conveyor belt 31 along the conveying direction. When the second conveyor belt 31 is in motion, the plurality of adsorption ports 30 can communicate with the vacuum adsorption chamber. The vacuum adsorption chamber can generate negative pressure and adsorb the product 9 to be inspected through the adsorption ports 30, thereby adsorbing the product 9 to be inspected onto the lower surface of the second conveyor belt 31.

[0036] Furthermore, the third conveying component 4 includes a third conveyor belt 41, and the third conveying component 4 can also be driven by a motor (not labeled). The third conveyor belt 41 is provided with a third conveying initial section 410 ( Figure 5(As shown). Along the vertical direction, the third initial conveying section 410 is located directly below the area between the transfer end 311 and the end 312 of the second conveyor belt 31. In a preferred embodiment, the conveying direction of the third conveyor belt 41 is the same as that of the second conveyor belt 31. The second conveyor belt 31 does not have an adsorption effect on the product to be inspected in the area between the transfer end 311 and the end 312. During operation, when the second conveyor belt 31, adsorbing the product to be inspected, conveys it along the conveying direction to the area between the transfer end 311 and the end 312, the product to be inspected 9 falls onto the third conveyor belt 41. Of course, to avoid damaging the product, the interval between the second conveyor belt 31 and the third conveyor belt 41 is set to be slightly greater than the maximum height of the product to be inspected 9.

[0037] Please refer to the reference. Figures 1 to 7 As shown, the plurality of detection elements include a first detection element 21, which has a detection head 210 capable of transmitting or receiving signals in the vertical direction. The detection head 210 is located below the second conveyor belt 31 and at any position between the initial conveyor end 310 and the intermediate conveyor end 311 along the conveying direction of the second conveyor belt 31. The first detection element 21 is used to perform appearance inspection on the lower surface of the product 9 to be inspected, which has been adsorbed by the second conveyor belt 31. In order to effectively protect the product 9 to be inspected and prevent it from falling due to insufficient adsorption force or other special reasons (such as vibration of the second conveyor belt 31), in a preferred embodiment, a transparent isolation plate 7 is also fixed between the detection head 210 and the first conveyor belt 11 in the vertical direction.

[0038] Please refer to the reference. Figures 2 to 4 As shown, in one further embodiment, the first detection element 21 includes a detection device 211. Along the conveying direction of the second conveyor belt 31, the detection device 211 is disposed on one side of the second conveyor belt 31 and forms a detection viewing angle along the width direction of the second conveyor belt 31. The detection head 210 includes a prism component 2101, which is used to convert the detection viewing angle of the detection device 211 along the width direction of the second conveyor belt 31 into a vertical direction. This reduces the overall height of the equipment, preventing the height of the detection device 211 itself from affecting the overall height of the polyhedral product appearance inspection equipment. Of course, in other embodiments, the first detection element 21 can be directly disposed below the second conveyor belt 31.

[0039] Furthermore, in this embodiment, the plurality of detection elements further includes at least one second detection element 22 (two second detection elements 22 in this embodiment), correspondingly disposed on at least one side of the first conveyor belt 11 along the conveying direction (in this embodiment, detection elements 22 are disposed on both sides of the first conveyor belt 11 along the conveying direction). The second detection element 22 is used to detect two opposite sides of the product 9 to be inspected, so as to... Figure 5 To illustrate, this is used to test the two short sides of the product 9 to be inspected.

[0040] Furthermore, in this embodiment, the plurality of detection elements further includes at least one third detection element 23 (two second detection elements 22 in this embodiment), correspondingly disposed on at least one side of the third conveyor belt 41 along the conveying direction (in this embodiment, detection elements are disposed on both sides of the third conveyor belt 41 along the conveying direction). The third detection element 23 is used to detect two opposite sides of the product 9 to be inspected, so as to... Figure 5 To illustrate, this is used to inspect the two long sides of the product 9 to be inspected.

[0041] Furthermore, in this embodiment, the plurality of detection elements also includes at least one fourth detection element 24, disposed above the first conveyor belt 11 (or possibly above the third conveyor belt 41). The fourth detection element 24 is used to detect the upper surface of the product 9 to be inspected.

[0042] In this embodiment of the application, for example, the detection element may be a CCD detector.

[0043] Please refer to Figure 5 and Figure 6 As shown, to better facilitate the transfer of the product 9 to be inspected from the first conveyor belt 11 to the second conveyor belt 31, a position adjustment member 8 is provided at the first conveying end 110 of the first conveying assembly 1. A product receiving cavity 80 is formed in the middle of the position adjustment member 8, and the product receiving cavity 80 is open upwards, facing the second conveyor belt 31 at the initial conveying end 310. A product inlet (unlabeled) is formed at the bottom of the product receiving cavity 80. The product 9 to be inspected, conveyed by the first conveyor belt 11, flows into the product receiving cavity 80 through the inlet, achieving precise adjustment of the product position. The second conveyor belt 31 uses an adsorption port 30 to hold the product 9 flowing into the product receiving cavity 80 upwards, and it flows out through a product outflow clearance port 81 formed on one side of the upper surface of the position adjustment member 8, ultimately realizing the transfer of the product 9 from the first conveyor belt 11 to the second conveyor belt 31. Of course, if the height is sufficient, the clearance port 81 may not be provided.

[0044] The multifaceted product appearance inspection equipment of this application can perform full-surface inspection (taking a cuboid product as an example, that is, its six surfaces) on the product to be inspected conveyed by the first conveyor belt 11, without needing to flip the product to be inspected, or even change the placement angle of the product to be inspected on the conveyor belt. With proper control of the transmission speed of the first conveyor component 1, the second conveyor component 3 and the third conveyor component 4, it is even possible to maintain the placement interval distance of the product to be inspected on the conveyor belt.

[0045] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A polyhedral product appearance inspection device, characterized in that, include: The first conveying assembly (1) is provided with a first conveyor belt (11) for carrying and conveying the product to be inspected (9) and is provided with a first conveying end (110). The second conveying component (3) includes a second conveyor belt (31). The second conveying component (3) is provided with a conveying initial end (310) and a conveying transfer end (311) along the conveying direction of the second conveyor belt (31). The conveying initial end (310) is located directly above the first conveying end (110) and is spaced a predetermined distance in the vertical direction. The second conveying component (3) has a vacuum adsorption cavity formed in the region from the initial end (310) to the intermediate end (311) of the second conveyor belt (31) in the conveying direction. A plurality of adsorption ports (30) are formed on the second conveyor belt (31) along the conveying direction. The plurality of adsorption ports (30) can communicate with the vacuum adsorption cavity. The vacuum adsorption cavity can generate negative pressure and adsorb the product to be inspected through the adsorption ports (30). The first detection element (21) is provided with a detection head (210) capable of transmitting or receiving signals in the up-down direction. The detection head (210) is located below the second conveyor belt (31) and at any position between the initial end (310) and the intermediate end (311) of the second conveyor belt (31) in the conveying direction.

2. The polyhedral product appearance inspection equipment according to claim 1, characterized in that, Also includes: At least one second detection element (22) is disposed on at least one side of the first conveyor belt (11) along the conveying direction.

3. The polyhedral product appearance inspection equipment according to claim 1, characterized in that: The conveying direction of the second conveyor belt (31) is intersected with the conveying direction of the second conveyor belt (31).

4. The polyhedral product appearance inspection equipment according to claim 3, characterized in that: The conveying direction of the second conveyor belt (31) is set perpendicular to the conveying direction of the second conveyor belt (31).

5. The polyhedral product appearance inspection equipment according to claim 1, characterized in that: A transparent isolation plate (7) is fixed between the detection head (210) and the first conveyor belt (11) along the vertical direction.

6. The polyhedral product appearance inspection equipment according to claim 1, characterized in that: The first detection element (21) includes a detection device (211) along the conveying direction of the second conveyor belt (31). The detection device (211) is disposed on one side of the second conveyor belt (31) and forms a detection angle along the width direction of the second conveyor belt (31). The detection head (210) includes a prism component (2101). The prism component (2101) converts the detection angle of the detection device (211) along the width direction of the second conveyor belt (31) into the up-down direction.

7. The polyhedral product appearance inspection equipment according to claim 1, characterized in that: The first detection element (21) is a CCD detector.

8. The polyhedral product appearance inspection equipment according to claim 1, characterized in that: The second conveying component (3) is also provided with a conveying end (312) along the conveying direction of the second conveyor belt (31), and the conveying end (312) is located in front of the conveying transfer end (311) along the conveying direction of the second conveyor belt (31). The third conveying component (4) includes a third conveyor belt (41), which is provided with a third initial conveying section (410). In the vertical direction, the third initial conveying section (410) is located directly below the area where the transfer end (311) and the end end (312) of the second conveyor belt (31) are located.

9. The polyhedral product appearance inspection equipment according to claim 8, characterized in that, Also includes: At least one third detection element (23) is disposed on at least one side of the third conveyor belt (41) along the conveying direction; At least one fourth detection element (24) is disposed above the first conveyor belt (11) or above the third conveyor belt (41).

10. The polyhedral product appearance inspection equipment according to claim 9, characterized in that: The conveying direction of the third conveyor belt (41) is the same as that of the second conveyor belt (31); The second conveyor belt (31) does not adsorb the product to be inspected in the area between the transfer end (311) and the end of the conveyor (312).

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