Method for inspecting slender components
A slender element, an ideal technology, used in applications, optical devices, instruments, etc., can solve the problem of contour error acquisition, no longer determined, etc.
Active Publication Date: 2021-01-08
GD SPA
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Problems solved by technology
[0024] However, if, over time, the arrangement between the projector and the PSD sensor is no longer ideal due to vibrations or positioning errors, it is no longer certain that the acquired highly curved profile corresponds to the cross-sectional profile of an actual rod-shaped article The actual acquisition of the contour and the wrong acquisition of the contour will occur
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[0050] In this specification, similar elements that are common to the illustrated embodiments are labeled with the same numerals.
[0051] Such as Figure 1 to Figure 18 As shown, the number 1 is used to denote as a whole the inspection group for cylindrical elongated elements for smoking articles.
[0052] The inspection group 1 may for example be integrated into a machine for the manufacture of continuous rods of fibrous material (eg containing tobacco fibers or fibers of filter material) for the tobacco industry, in which case the elongated element is a continuous filter rod or a continuous tobacco rod. The definition of "fibrous material" was provided above and will not be repeated below for the sake of brevity.
[0053] The inspection group 1 can also advantageously be integrated into a cigarette forming machine, in which case the elongated element can be a filter piece or a length of tobacco rod or cigarette, as already explained in detail above.
[0054] The inspectio...
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The present invention proposes a method of inspecting a cylindrical elongated element for a smoking article, comprising the steps of: projecting a first / second light strip from a first / second half-space onto the outer surface of a first elongated element / on the first elongated element. The method reconstructs a first closed curved cross-sectional profile of the first elongated element by means of first / second curves identified in the acquired first / second views of the first elongated element and identifies it relative to the ideal cross-sectional profile possible deformation. The method also includes the following steps: arranging the ideal elongated element and the first elongated element side by side at the reference position and the first position respectively, and simultaneously checking the first elongated element and the ideal elongated element through the first light bar and the second light bar ;reconstruct the first closed curved section profile of the ideal elongated element in the first view and the second view respectively by the first curve and the second curve; monitor the reconstructed closed curved section profile of the ideal elongated element if it is consistent with the ideal If the profiles are different, a warning is generated.
Description
technical field [0001] The invention relates to a method for inspecting elongated elements of fibrous material, in particular rod-shaped elongated elements, in machines of the tobacco industry. [0002] In particular, the term "fibrous material" refers to fibers of filter material (e.g. cellulose acetate) used to form continuous filter rods in single- or two-wire machines for the production of smoking articles such as cigarette filters, used instead of Tobacco fiber used to form tobacco rods in single- or two-wire machines for the production of smoking articles such as cigarettes. [0003] Thus, the rod-shaped elongated element may be a continuous filter rod, or a filter rod segment or a filter segment in a smoking article, or a continuous tobacco rod, or a tobacco rod in a cigarette. [0004] In particular, the present invention relates to the inspection process of continuous rods comprising fibrous material, such as tobacco fibers or filter material fibers, to which the fol...
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IPC IPC(8): G01B11/24G01B11/245G01B11/25A24C5/34
CPCG01B11/2408G01B11/245G01B11/25A24C5/3412
Inventor 阿尔伯特·卡萨格兰德塞尔吉奥·莫瑞里吉尔伯托·斯皮里托卢卡·费代里奇
Owner GD SPA