Label inspection device

Abstract

The utility model belongs to the technical field of detection equipment, and particularly relates to a label inspection device, which comprises a conveying line, a detection device and a control device, the multiple cameras are sequentially arranged along the conveying line and used for shooting the surfaces of the products; the cameras at least comprise an upper camera and a plurality of side cameras which are respectively used for shooting a top image and a side image of a product; the camera is used for being connected with a processing device, and the processing device receives and processes a top image and a side image shot by the camera. Through mutual cooperation of the conveying line and the camera, label detection of products is achieved, the detection structure is accurate and stable, and the detection efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of detection equipment, and particularly refers to a label inspection device. Background Art

[0002] Several labels for indicating the performance information and manufacturing information of a refrigerator are attached to the existing refrigerator. During actual maintenance and sales, the integrity of the labels, the accuracy of the pasting position and direction, and the correctness of the text are all particularly important. Currently, the manufacturer will dispatch corresponding personnel to check each manufactured product one by one, but this inspection method has the following defects:

[0003] 1. High labor cost.

[0004] 2. Inevitably, there are errors in manual inspection.

[0005] There is an urgent need for a device that can effectively improve the inspection accuracy and reduce the defective rate. Summary of the Invention

[0006] The purpose of the utility model is to provide a label inspection device that can effectively improve the inspection accuracy and reduce the defective rate.

[0007] The purpose of the utility model is achieved as follows:

[0008] A label inspection device includes:

[0009] A conveyor line for conveying the products to be inspected;

[0010] A plurality of cameras are provided, and the plurality of cameras are sequentially arranged along the conveyor line for photographing the surface of the product;

[0011] The camera at least includes an upper camera and a plurality of side cameras, which are respectively used for photographing the top image and the side image of the product; the camera is used to connect to a processing device, and the processing device receives and processes the top image and the side image photographed by the camera.

[0012] Further, the conveyor line includes a first conveyor part and a second conveyor part vertically connected to one end of the first conveyor part. The side cameras include a first camera arranged beside the first conveyor part, and a second camera and a third camera arranged at the connection angle between the first conveyor part and the second conveyor part. The first camera, the second camera, and the third camera are respectively used for photographing three different side images of the product.

[0013] Further, it further includes a photography cover. The photography cover has an opening facing the conveyor line. The camera with the same orientation as the opening is fixed inside the photography cover. The photography cover is used to block the sides and the bottom surface of the camera.

[0014] Further, it further includes a proximity switch, which is used to trigger the camera to capture the surface of the product when the product to be inspected is in front of the camera.

[0015] Further, a supplementary light is provided at the top of the photography cover, and the supplementary light faces the conveyor line.

[0016] Further, a support rod is provided at the top of the photography cover, and a strip-shaped supplementary light is horizontally arranged on the support rod.

[0017] Further, the photography cover includes a plurality of connected frame profiles, and a baffle is fixed between the frame profiles.

[0018] Further, a vertical installation profile is provided in the photography cover, a first connection groove is opened on the installation profile, and a support profile connected to the camera is further included. A second connection groove is opened in the support profile, and the support profile is horizontally arranged on the installation profile by setting fasteners in the first connection groove and the second connection groove.

[0019] The prominent and beneficial technical effects of the present utility model compared with the prior art are:

[0020] Through the mutual cooperation of the conveyor line and the camera, this patent realizes the label detection of the product. The detection structure is accurate and stable, and the detection efficiency is high. At the same time, this patent reduces the installation difficulty of the camera by setting an "L"-shaped conveyor line, that is, the second camera and the third camera can be arranged beside the corner part of the conveyor line, and cooperate with the first camera located at the first conveying part to realize the detection of three surfaces of the product. The overall structure is more compact, and the length of the overall inspection device is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the present utility model.

[0022] Figure 2 is a schematic structural diagram of the photography cover and the camera.

[0023] Figure 3 is a schematic structural diagram of the connection angle between the first conveying part and the second conveying part.

[0024] The meanings represented by the reference numerals in the drawings:

[0025] 1, conveyor line; 11, first conveying part; 12, second conveying part; 2, camera; 21, upper camera; 22, first camera; 23, second camera; 24, third camera; 3, processing device; 4, photography cover; 41, opening part; 42, support rod; 43, frame profile; 44, baffle; 45, installation profile; 451, first connection groove; 46, support profile; 461, second connection groove; 5, supplementary light; Detailed implementation manners

[0026] The present utility model will be further described below in conjunction with specific embodiments:

[0027] A label inspection device includes a conveyor line 1 and a camera 2. The conveyor line 1 is used to convey products to be inspected, and several cameras 2 are arranged along the conveyor line 1 in sequence for photographing the surface of the products. The camera 2 at least includes an upper camera 21 and several side cameras 2, which are respectively used for photographing the top image and the side image of the product. The camera 2 is used to connect to a processing device 3, and the processing device 3 receives and processes the top image and the side image photographed by the camera 2.

[0028] As Figure 1 shown, the conveyor line 1 in this patent includes a first conveyor section 11 and a second conveyor section 12 vertically connected to one end of the first conveyor section 11. Generally, rollers are provided on the first conveyor section 11 and the second conveyor section 12, and the products can be conveyed from the first conveyor section 11 to the second conveyor section 12 through the rollers to realize product conveyance. At this time, the side camera 2 includes a first camera 22 arranged beside the first conveyor section 11, and a second camera 23 and a third camera 24 arranged at the connection angle between the first conveyor section 11 and the second conveyor section 12. The first camera 22, the second camera 23 and the third camera 24 are respectively used to detect three different sides of the product.

[0029] In this embodiment, the product to be detected is a freezer, which is generally square. Corresponding labels are provided on the front, top, left side and rear side of the freezer. Therefore, multiple side cameras 2 need to be set to photograph the freezer in sequence. Among them, since the first conveyor section 11 and the second conveyor section 12 are vertically connected, two installation spaces facing the left side and the rear side of the product are left at the connection angle between the first conveyor section 11 and the second conveyor section 12. At this time, the second camera 23 and the third camera 24 can be set at these two installation spaces, and the first camera 22 is set beside the first conveyor section 11 to make the first camera 22 located at the position in front of the product, and the upper camera 21 is fixed above the first conveyor line 1 through a suspension.

[0030] Actually, it also includes proximity switches. There are several proximity switches, which are located on one side of the camera 2 and are used to detect whether there is a product to be inspected in front of the camera 2. The proximity switches are generally photoelectric switches. When the product to be inspected is transported in front of the camera 2, the product to be detected blocks in front of the proximity switch, so that the proximity switch obtains a signal to control the operation of the camera 2. Specifically, the product passes through the first camera 22, the top camera 2, the second camera 23 and the third camera 24 in sequence. A number of photos are taken by the above-mentioned first camera 22, top camera 2, second camera 23 and third camera 24 and transmitted to the processing device 3. The processing device 3 described in this patent is a computer set on one side of the conveyor line 1. Some preset patterns are set in the computer. By means of image recognition, the transmitted top image and side image are compared to judge whether there are problems with the label posting direction and posting position on the product. If there are the above problems, an alarm will be given, and the operator will be prompted to repair the faulty product by means of a buzzer or a light, so as to realize the quality monitoring of the product.

[0031] In summary, through the mutual cooperation of the conveyor line 1 and the camera 2, this patent realizes the label detection of the product. The detection structure is accurate and stable, and the detection efficiency is high. At the same time, this patent reduces the installation difficulty of the camera 2 by setting the "L"-shaped conveyor line 1, that is, the second camera 23 and the third camera 24 can be set beside the folding part of the conveyor line 1, and cooperate with the first camera 22 located at the first conveying part 11 to realize the detection of three sides of the product. The overall structure is more compact, and the length of the overall inspection device is reduced.

[0032] Furthermore, it also includes a photographic cover 4. The photographic cover 4 has an opening 41 facing the conveyor line 1. The camera 2 with the same orientation as the opening 41 is fixed inside the photographic cover 4. The photographic cover 4 is used to block the side and bottom surfaces of the camera 2. As Figure 2 shown, the photographic cover 4 in this patent is generally square. The photographic cover 4 includes several connected frame profiles 43. The frame profiles 43 are connected to form a cuboid. An empty part is formed between the frame profiles 43, and a baffle 44 is set in the empty part to form the photographic cover.

[0033] As Figure 2As shown, a vertical mounting profile 45 is provided in the photographic hood 4. A first connection groove 451 is formed in the mounting profile 45. Further included is a support profile 46 connected to the camera 2. A second connection groove 461 is formed in the support profile 46. The support profile 46 is horizontally placed on the mounting profile 45 by setting fasteners in the first connection groove 451 and the second connection groove 461. The fasteners are generally screws and nuts, and the fasteners can slide in the first connection groove 451 and the second connection groove 461. By sliding the fasteners in the first connection groove 451 and the second connection groove 461, the position of the support profile 46 is correspondingly adjusted, and the position of the camera 2 is adjusted to adapt to different products.

[0034] Further, a supplementary light 5 is provided at the top of the photographic hood 4, and the supplementary light 5 faces the conveyor line 1. As Figure 2 shown, the support rod 42 is also a profile. The supplementary light 5 is strip-shaped and is horizontally placed on the support rod 42 through fasteners. The horizontally placed supplementary light 5 increases the coverage area of light to enhance the photographic effect.

[0035] The above embodiments are only the preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

[0036] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limited conditions under which the present invention can be implemented. Therefore, they do not have a technical essence. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of narration and are not used to limit the scope under which the present invention can be implemented. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present invention can be implemented.

[0037] It should also be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as "connected" to another element, it can be directly connected to the other element or can also be indirectly connected to the other element through an intermediate element.

[0038] In addition, the descriptions involving "first", "second", etc. in this application are for descriptive purposes only, and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

Claims

1. A label inspection device, characterized in that, Including: A conveyor line (1) for conveying products to be inspected; A plurality of cameras (2) are provided, and the plurality of cameras (2) are arranged in sequence along the conveyor line (1) for photographing the surface of the product; The camera (2) at least includes an upper camera (21) and a plurality of side cameras (2), which are respectively used for photographing the top image and the side image of the product; the camera (2) is used to connect to a processing device (3), and the processing device (3) receives and processes the top image and the side image photographed by the camera (2).

2. The label inspection device according to claim 1, characterized in that: The conveyor line (1) includes a first conveyor part (11) and a second conveyor part (12) vertically connected to one end of the first conveyor part (11). The side cameras (2) include a first camera (22) arranged beside the first conveyor part (11), and a second camera (23) and a third camera (24) arranged at the connection angle between the first conveyor part (11) and the second conveyor part (12). The first camera (22), the second camera (23) and the third camera (24) are respectively used for photographing three different side images of the product.

3. A label inspection device according to claim 1 or 2, characterized in that: It further includes a photography cover (4). The photography cover (4) has an opening part (41) facing the conveyor line (1). The camera (2) with the same orientation as the opening part (41) is fixed inside the photography cover (4). The photography cover (4) is used to block the sides and the bottom surface of the camera (2).

4. The label inspection device according to claim 1, wherein: It further includes a proximity switch, which is used to trigger the camera (2) to photograph the surface of the product when the product to be inspected is in front of the camera (2).

5. The label inspection device according to claim 3, wherein: A supplementary light (5) is further provided at the top of the photography cover (4), and the supplementary light (5) faces the conveyor line (1).

6. The label inspection device according to claim 4, characterized in that: A support rod (42) is provided at the top of the photography cover (4), and a strip-shaped supplementary light (5) is horizontally arranged on the support rod (42).

7. The label inspection device according to claim 3, wherein: The photography cover (4) includes a plurality of connected frame profiles (43), and a baffle (44) is fixed between the frame profiles (43).

8. The label inspection device according to claim 3, wherein: A vertical installation profile (45) is provided in the photography cover (4). A first connection groove (451) is opened on the installation profile (45). It further includes a support profile (46) connected to the camera (2). A second connection groove (461) is opened in the support profile (46). The support profile (46) is horizontally arranged on the installation profile (45) by arranging fasteners in the first connection groove (451) and the second connection groove (461).

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