High-precision line drawing machine

Abstract

The utility model discloses a high-precision line drawing machine, which belongs to the field of line drawing machines and comprises a machine body, an ink jet machine head and a conveyor belt, the ink jet machine head and the conveyor belt move on the machine body, the top of the machine body is provided with at least three visual recognizers facing the conveyor belt, the visual recognizers are not on the same straight line, and a principle that three points determine one surface is utilized. According to the technical scheme, more than three visual recognizers are used for recognizing products on a conveying belt, so that the more than three visual recognizers are used for mutually correcting and compensating the difference, complete planarization of product recognition in a working area is achieved, visual recognition is fast and accurate, and the effect of complete accuracy and no deformation on small workpieces is achieved. And a high-precision effect can be realized during line drawing.

Description

Technical Field

[0001] The utility model discloses a high-precision line drawing machine, belonging to the field of line drawing machines. Background Art

[0002] Line drawing machine is a device used to draw lines and position the surface of products.

[0003] When using the existing fully automatic line drawing machine, workers place the products on the conveyor belt, and then the conveyor belt sends the products to the line drawing machine head. At this time, the camera collects the product data placed on the conveyor belt and sends it to the line drawing machine head, allowing the line drawing machine head to draw lines. However, since the existing line drawing machines all use a single camera, and the single camera has its own limitations, the following problems will occur when collecting images: Figure 2 The distortion shown in the figure causes the line drawing head to have deviation when drawing lines, and this deviation is more obvious when the material is smaller, which ultimately causes inaccurate line drawing.

[0004] Therefore, a new solution is needed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a high-precision line drawing machine in order to solve the above problems.

[0006] The utility model achieves the above-mentioned purpose through the following technical scheme: a high-precision line drawing machine, including a machine body and an inkjet head and a conveyor belt moving on the machine body, wherein the machine body is provided with a visual identifier facing the conveyor belt at the top, and the visual identifiers are at least three and are no longer on the same straight line.

[0007] Preferably, the angles between adjacent visual identifiers are equal.

[0008] Preferably, at least two of the visual identifiers are connected without being blocked by the inkjet head at the same time.

[0009] Preferably, the plurality of visual identifiers are located in the same plane.

[0010] Preferably, the conveyor belt is provided with a plurality of marking points corresponding to the center points of different visual identifiers respectively.

[0011] Preferably, the central projection between the plurality of visual identifiers coincides with the center of the conveyor belt.

[0012] Compared with the prior art, the beneficial effects of the utility model are: using the principle of three points to determine a surface, more than three visual identifiers are used to identify the products on the conveyor belt, so that more than three visual identifiers are used to correct each other and make up for the difference, so as to achieve complete planarization of product recognition in the working area, thereby making the visual recognition fast and accurate, and achieving a completely accurate and non-deformation effect on small workpieces, ensuring high-precision effects when drawing lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a structural schematic diagram of single camera imaging;

[0015] Figure 3 This is a schematic diagram of the structure of the multi-vision recognizer after imaging correction.

[0016] Figure numerals: 1. body; 2. conveyor belt; 3. inkjet head; 4. visual identifier; 5. marking point. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0018] like Figure 1 , Figure 3 As shown, a high-precision line drawing machine includes a body 1 and an inkjet head 3 and a conveyor belt 2 moving on the body 1. The body 1 is provided with a visual identifier 4 facing the conveyor belt 2 at the top. There are at least three visual identifiers 4 and they are no longer on the same straight line.

[0019] This product uses the principle of three non-collinear points to determine a plane, so that the visual recognizer 4 naturally forms planar data when collecting data, so that the internal algorithm can use more than three visual recognizers 4 connected in a straight line to correct the overall image when performing calculation correction. When the image is corrected, the overall image can reset the distorted lines, so that the data collected by the image is exactly the same as the actual position, so that the line drawing machine can draw quickly and accurately.

[0020] The angles between adjacent visual identifiers 4 are equal, and the connection line of at least two visual identifiers 4 will not be blocked by the inkjet head 3 at the same time. By ensuring that the connection line of at least two visual identifiers 4 is not blocked, the specific position of the blocked visual identifier 4 can be calculated using the same angle, and then the distortion of the connection line generated by the visual identifier 4 is calculated through an algorithm, and a plane figure is generated after correction, and then the specific position of the product in the plane figure is analyzed through color difference, and then the signal of the specific position is sent to the inkjet head 3, so that the inkjet head 3 sprays ink on the product according to the information collected by the visual identifier 4.

[0021] Several visual identifiers 4 are in the same plane, which can effectively avoid three-dimensional direction errors when performing graphic algorithms, so that the algorithm can directly shield the length of the product thickness direction to avoid deviations in the visual recognition pattern due to the addition of thickness.

[0022] The conveyor belt 2 is provided with a number of marking points 5 corresponding to the center points of different visual identifiers 4. By corresponding the marking points 5 on the conveyor belt 2 with the center points of the visual identifier 4, the conveyor belt 2 forms a plane diagram in the visual identifier 4. At this time, after adding the product, the specific position of the product on the conveyor belt 2 can be identified faster and more accurately, thereby making the moving position of the inkjet head 3 more precise.

[0023] The central projections between several visual identifiers 4 coincide with the center of the conveyor belt 2. The central projection coincides with the center of the conveyor belt 2, which can effectively identify the middle position of the conveyor belt 2, and then reversely sort out the exact position of the visual identifier 4 through the center position, so that these positions can be used to make visual recognition more accurate.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high-precision line drawing machine, comprising a machine body, an inkjet head and a conveyor belt moving on the machine body, characterized in that: The fuselage is provided with a visual identifier facing the conveyor belt at the top, and there are at least three visual identifiers which are not on the same straight line.

2. A high-precision line drawing machine according to claim 1, characterized in that: The included angles between adjacent visual identifiers are equal.

3. A high-precision line drawing machine according to claim 2, characterized in that: At the same time, the connection line of at least two of the visual identifiers will not be blocked by the inkjet head.

4. A high-precision line drawing machine according to claim 1, characterized in that: The plurality of visual identifiers are located in the same plane.

5. A high-precision line drawing machine according to claim 1, characterized in that: The conveyor belt is provided with a plurality of marking points corresponding to the center points of different visual identifiers respectively.

6. A high-precision line drawing machine according to claim 1, characterized in that: The central projections between the plurality of visual identifiers coincide with the center of the conveyor belt.

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