Machine vision device suitable for vision measurement of cigars of multiple sizes

Abstract

The utility model discloses a machine vision device suitable for vision measurement of cigars of multiple sizes. The machine vision device comprises a telecentric light source a, a linear guide rail a, a telecentric light source b, a double-stroke cylinder a, a linear guide rail b, a double-stroke cylinder b, a telecentric lens and camera a, a telecentric lens and camera b, a left light source, a right light source and a mounting plate, according to the utility model, the length, the multi-point diameter and the color of the machine-made cigar can be measured, the circumference measurement of multiple measurement position points of samples of multiple specifications can be realized, the simultaneous measurement of the length and the circumference can also be realized, the measurement of two physical properties is combined together, and the occupied space is small. Compared with a traditional cigarette measuring range, the device has the advantages of being large in measuring range, capable of measuring the color of a sample, low in noise during measurement, compact in size, and accurate in measured value due to the adoption of backlight measurement.

Description

Technical Field

[0001] The utility model relates to the field of cigar detection, in particular to a machine vision device suitable for visual measurement of cigars of multiple sizes. Background Technique

[0002] The fully mechanized manufactured cigar (referred to as the machine-made cigar) is a kind of cigar that has developed rapidly in recent years. Many cigarette factories in China have introduced cigarette packers to produce machine-made cigars. Machine-made cigars usually have more specifications than traditional cigarettes, with a large span of diameters and lengths for different brands. The diameter range is about 6 mm to 20 mm, and the length range is about 70 mm to 240 mm. The machine-made cigar consists of one or two segments. The one-segment cigar is a cigarette with the entire surface wrapped by cigar leaves; the two-segment cigar adds a wooden mouthpiece or a plastic mouthpiece, etc. on the basis of the one-segment cigar.

[0003] The existing measurement of machine-made cigars usually only measures a single parameter of cigars of a single specification, and it is difficult to make timely changes when the specification of the cigar changes. At the same time, the measurement device is large in volume, occupies a large space, has a large measurement noise, and the measurement accuracy is also low. Content of the Utility Model

[0004] The purpose of the utility model is to design a machine vision device suitable for visual measurement of cigars of multiple sizes to solve the above problems.

[0005] The utility model realizes the above purpose through the following technical solutions:

[0006] The utility model provides a machine vision device suitable for visual measurement of cigars of multiple sizes, including a telecentric light source a, a linear guide a, a telecentric light source b, a double-stroke cylinder a, a linear guide b, a double-stroke cylinder b, a telecentric lens and a camera a, a telecentric lens and a camera b, a left light source, a right light source, and a mounting plate; the telecentric lens and the camera b are installed on one side above the mounting plate, the left light source and the right light source are symmetrically installed on both sides of the telecentric lens and the camera b, the telecentric light source a is installed on the other side above the mounting plate and is opposite to the telecentric lens and the camera b; the telecentric lens and the camera a are installed on one side below the mounting plate and are driven by the double-stroke cylinder b to slide vertically on the linear guide b, and the linear guide a, the telecentric light source b, and the double-stroke cylinder a are installed on the other side below the mounting plate and are opposite to the telecentric lens and the camera a, and are driven by the double-stroke cylinder a to slide vertically on the linear guide a.

[0007] As a preference of the utility model, a PLC component is also provided in this device.

[0008] The beneficial effects of the present utility model are as follows: The present utility model can measure the length, multi-point diameter and color of machine-made cigars, can realize the circumferential measurement of multiple sample measurement position points of multiple specifications, and can also realize the simultaneous measurement of length and circumference. The combination of the measurements of the two physical properties occupies a small space. Its advantages are that it has a larger measurement range than traditional cigarettes, can measure the color of samples, has low noise during measurement, has a compact volume, uses backlight measurement, and the measured values are more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 FIG. is a schematic structural diagram of a machine vision device for visual measurement of cigars of multiple sizes according to the present utility model.

[0010] In the figure: 1 - telecentric light source a, 2 - linear guide a, 3 - telecentric light source b, 4 - double stroke cylinder a, 5 - linear guide b, 6 - double stroke cylinder b, 7 - telecentric lens and camera a, 8 - telecentric lens and camera b, 9 - left light source, 10 - right light source, 11 - mounting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0011] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Components of the embodiments of the present utility model described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0012] Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model claimed, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0013] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0014] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0015] In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0016] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, terms such as "arrangement", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0017] The following will describe in detail the specific embodiments of the present utility model with reference to the drawings.

[0018] As shown in the Figure 1 drawings, this embodiment provides a machine vision device applicable to visual measurement of cigars of multiple sizes, including a telecentric light source a1, a linear guide a2, a telecentric light source b3, a double-stroke cylinder a4, a linear guide b5, a double-stroke cylinder b6, a telecentric lens and a camera a7, a telecentric lens and a camera b8, a left light source 9, a right light source 10, and a mounting plate 11; the telecentric lens and the camera b8 are installed on one side above the mounting plate 11, the left light source 9 and the right light source 10 are symmetrically installed on both sides of the telecentric lens and the camera b8, and the telecentric light source a1 is installed on the other side above the mounting plate 11 and is opposite to the telecentric lens and the camera b8; the telecentric lens and the camera a7 are installed on one side below the mounting plate 11 and are driven by the double-stroke cylinder b6 to slide vertically on the linear guide b5, and the linear guide a2, the telecentric light source b3, and the double-stroke cylinder a4 are installed on the other side below the mounting plate 11 and are opposite to the telecentric lens and the camera a7, and are driven by the double-stroke cylinder a4 to slide vertically on the linear guide a2.

[0019] As a preference of the embodiment of the present utility model, this device is also provided with a PLC component, and the automatic control operation of this device is realized through the PLC component, greatly improving the measurement efficiency and accuracy.

[0020] Working principle: When the sample is in the measurement position, the PLC controls the left light source 9 and the right light source 10 to turn on. The telecentric lens and camera b8 collect pictures, and the color of the sample can be recognized. The left light source 9 and the right light source 10 are turned off, and the telecentric light source a1 and the telecentric light source b3 are turned on. The double stroke a4 and the double stroke cylinder b6 can drive the telecentric light source b3, the telecentric lens and the camera b8 to slide up and down on the linear guide a2 and the linear guide b5 to the specified position according to requirements. The self-centering disk drives the sample to rotate one circle, and the telecentric lens and the camera b8 collect the image information above the mounting plate 11 to calculate the diameter and length of the sample. The telecentric lens and the camera a7 collect the image information at the specified position below the mounting plate 11 to calculate the second point diameter of the sample.

[0021] Although the present invention has been described herein with reference to illustrative embodiments of the present invention, the above embodiments are only preferred embodiments of the present invention. The embodiments of the present invention are not limited by the above embodiments. It should be understood that those skilled in the art can design many other modifications and embodiments, which will fall within the scope and spirit of the principles disclosed in this application.

Claims

1. A machine vision device applicable to visual measurement of cigars of multiple sizes, characterized in that: It includes a telecentric light source a (1), a linear guide a (2), a telecentric light source b (3), a double-stroke cylinder a (4), a linear guide b (5), a double-stroke cylinder b (6), a telecentric lens and a camera a (7), a telecentric lens and a camera b (8), a left-side light source (9), a right-side light source (10), and a mounting plate (11); the telecentric lens and the camera b (8) are installed on one side above the mounting plate (11), the left-side light source (9) and the right-side light source (10) are symmetrically installed on both sides of the telecentric lens and the camera b (8), and the telecentric light source a (1) is installed on the other side above the mounting plate (11) and is opposite to the telecentric lens and the camera b (8); the telecentric lens and the camera a (7) are installed on one side below the mounting plate (11) and are driven by the double-stroke cylinder b (6) to slide vertically on the linear guide b (5), and the linear guide a (2), the telecentric light source b (3), and the double-stroke cylinder a (4) are installed on the other side below the mounting plate (11) and are opposite to the telecentric lens and the camera a (7), and are driven by the double-stroke cylinder a (4) to slide vertically on the linear guide a (2).

2. The machine vision device applicable to visual measurement of cigars of multiple sizes according to claim 1, characterized in that: A PLC component is also provided to achieve automatic control operation through the PLC component.

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