Cigarette and package appearance quality defect detection ruler

Abstract

The utility model provides a cigarette and package appearance quality defect detection ruler, which is characterized in that a main body is made of a transparent material and is in the shape of a rectangular flat plate, a measuring surface is taken as a front surface, flanges are arranged on the front surface side and on the outer edges of a group of adjacent long edges and short edges in a full length manner, and one surface, facing the detection ruler, of each flange is flat and is taken as an auxiliary reference surface; the detection ruler is provided with a single-pack cigarette diameter sum detection unit, a single-pack cigarette circumference detection unit, a cigarette length detection unit, a cigarette tipping paper position detection unit, a cigarette tipping paper position detection unit, a detection unit for the length of an exposed section of a cigarette pack stay wire exceeding a box body, and a detection unit for the width of a seam gap between a cigarette pack box cover and the box body. A position height difference detection unit, a cigarette packet bottom outer contour squareness detection unit, a seal position detection unit, a circular defect reference unit, a rectangular defect reference unit and a carton pull wire position detection unit are arranged between the upper edge and the lower edge of a hard cigarette packet box opening frame paper. The device can detect multiple types, and is high in detection result accuracy and strong in specificity and guidance.

Description

Technical Field

[0001] This utility model relates to an appearance quality control tool in the tobacco product manufacturing process, and more specifically, a ruler for detecting appearance quality defects in cigarette sticks and packaging. Background Technology

[0002] The appearance quality of cigarettes and their packaging directly affects the market acceptance of the product; therefore, appearance quality control is particularly important in the cigarette production process. Currently, commonly used testing methods for appearance quality control rely heavily on human experience, visual judgment, or a combination of simple physical measuring tools. Both testing efficiency and accuracy are significantly affected by subjective human factors. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model proposes a quality defect detection ruler for cigarette sticks and packaging. It has high accuracy, rich detection functions, can detect a wide range of types, and is highly specialized and instructive.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A measuring ruler for detecting defects in the appearance of cigarette sticks and packaging. The main body of the ruler is made of transparent material and is rectangular and flat. With the measuring surface as the front, a set of adjacent long and short sides along their entire outer length are provided with a stop perpendicular to the surface of the plate. The side of the stop facing the measuring ruler is flat and serves as an auxiliary reference surface. The measuring ruler has the following features:

[0006] The cigarette circumference inspection unit is configured with multiple sets of circumference inspection holes according to various cigarette specifications. Each set of circumference inspection holes includes a circumference oversized inspection through hole and a circumference undersized inspection through hole that passes through the inspection ruler. For the corresponding cigarette specifications, the circumference of the circumference oversized inspection through hole is 0.1 mm larger than the set circumference C of the cigarette, and the circumference of the circumference undersized inspection through hole is 0.1 mm smaller than the set circumference C of the cigarette.

[0007] The cigarette length inspection unit includes a first marking area and a long side stop set parallel to the entire length of the long side. The first marking area is divided into three first reference bands parallel to the long side. The middle one is the standard cigarette length reference band with a bandwidth of W0. The distance L0 from the edge facing the long side stop to the auxiliary reference surface of the long side stop is equal to the set length L of the cigarette. The maximum allowable error of the cigarette length is equal to W0. The one closer to the long side stop is the excessively short cigarette length reference band with a bandwidth of W1. The one farther away from the long side stop is the excessively long cigarette length reference band with a bandwidth of W2.

[0008] The inspection unit for the gap width between the cigarette pack lid and the pack body has a second marking area formed on the measuring ruler, with the base of the second marking area parallel to the entire length of the short side, serving as the reference side for inspecting the gap width. The angles between the two sides and the base are set according to the angle of inclination of the gap between the lid and the pack body. The width of the sides is W. f0 As a standard width reference band for the seam between the lid and the box body, when the top edge of the cigarette pack lid is aligned with the seam width inspection reference edge, the seam between the lid and the box body that meets the width standard falls within the area of ​​the standard width reference band, and the seam width value between the lid and the box body is not greater than W. f0 ;

[0009] The height difference inspection unit between the upper and lower edges of the frame paper at the opening of a hard-pack cigarette pack includes the bottom of the second marking area and a height difference comparison band parallel to the bottom. The width of the height difference comparison band is W. G The distance from the bottom to the edge facing the bottom is L. G0 The height difference L between the upper and lower edges of the box frame paper and the box body opening is set. G The maximum allowable error for the height difference between the upper and lower edges of the box opening is equal to W. G .

[0010] The structural features of this utility model also lie in:

[0011] The measuring ruler also features:

[0012] The pull tab position inspection unit for soft-pack cigarette packs uses one edge of the measuring scale as the reference edge for pull tab position inspection. A standard position reference band for the pull tab, parallel to the reference edge, is set on the measuring scale, with a bandwidth of W. x The distance L from the edge of the inspection reference edge on the side facing the soft-pack pull wire position inspection reference edge is... x The set distance L between the pull cord of the soft-pack cigarette pack and the top edge of the pack. x0 Equal, set distance L x0 The maximum allowable error is equal to W. x ;

[0013] The measuring ruler also features:

[0014] The inspection unit for the exposed length of the cigarette pack pull cord beyond the box body includes a standard length comparison band with a width of W on the measuring ruler. L One edge is used as the reference edge for inspecting the length of the exposed section, and the string extends beyond the set length L of the exposed section of the box. L Less than or equal to W L .

[0015] The measuring ruler also features:

[0016] The unit for inspecting the total diameter of cigarettes in a single pack includes a first scale area along the entire length of the other side's long edge and a short side guard. The first scale area is divided into a total diameter inspection area of ​​length B. The measurement start end is flush with the auxiliary reference surface of the short side guard. The distance from the minimum scale value of the total diameter inspection area to the measurement start end is A. The set diameter of the cigarettes is D, and the total number of cigarettes in a single pack is N. The maximum allowable error of the total diameter of all cigarettes in a single pack is equal to B; A = D × N.

[0017] The measuring ruler also features:

[0018] The cigarette tipping paper position inspection unit includes a third marking area and a side guard along the long edge, both parallel to the entire length of the long edge. The third marking area is divided into three parallel second reference bands, with the central band serving as the standard tipping paper position reference band, with a width of W. z0 The distance L from the auxiliary reference plane of the long side stop edge to the long side stop edge is... z0 The set distance L from the end of the filter tip to the junction of the tipping paper and the cigarette paper. z The maximum permissible error in the distance from the junction of the tipping paper and the cigarette paper to the filter tip is equal to W. z0 The strip closest to the long side guard is a reference strip for the position where the paper is too close to the mounting edge; its width is W. z1 The strip furthest from the long side guard is a reference strip for the position where the paper splicing is too far away; its width is W. z2 .

[0019] The measuring ruler also features:

[0020] The bottom outer contour of the cigarette pack is square. The measuring ruler also forms a fourth marking area with a rectangular outline. The inner contour of the fourth marking area is set according to the outer contour of the bottom of the standard cigarette pack. The standard cigarette pack is placed upright in the fourth marking area with its bottom centered. There is a gap of 1mm between the outer surface and the inner contour of the fourth marking area.

[0021] The measuring ruler also features:

[0022] The seal position inspection unit includes a horizontal scale area and a vertical scale area that are arranged in a cross shape. The intersection point of the horizontal scale area and the vertical scale area are both used as the measurement starting point. The scales are divided into two segments with the measurement starting point as the center and are symmetrically distributed. This is used to determine the center position of the seal on the cigarette pack.

[0023] The measurement starting point of the seal position inspection unit coincides with the center of the squareness inspection unit of the bottom outer contour of the cigarette pack. The horizontal scale area is parallel to the short side of the inspection ruler, and the vertical scale area is parallel to the long side of the inspection ruler.

[0024] The measuring ruler also features:

[0025] The circular defect reference unit sets multiple sets of circular comparison areas on the measurement surface. These multiple sets of circular comparison areas are arranged at intervals in order of increasing diameter, and are used to compare the size of the circular appearance quality defects on the cigarette pack.

[0026] The rectangular defect reference unit sets multiple sets of rectangular strip-shaped comparison areas on the measurement surface. These multiple sets of rectangular strip-shaped comparison areas are parallel to each other and arranged in order of increasing width. The width of each rectangular strip-shaped comparison area is used for comparison of the width or length of the cigarette packaging quality defects.

[0027] The measuring scale also includes a strip box pull line position inspection unit. One edge of the measuring scale serves as the strip box inspection reference edge. A strip box pull line standard position comparison band, parallel to the strip box inspection reference edge, is set on the measuring scale with a width of W. h The distance L from the edge of the strip box inspection reference side to the strip box pull line reference side is... h The set distance L of the outer edge of the closer side of the carton, parallel to the distance of the carton pull cord. h Equal, set distance L h The maximum allowable error is equal to W. h .

[0028] Compared with existing technologies, the beneficial effects of this utility model are reflected in:

[0029] This utility model's inspection ruler boasts high integration and rich inspection functions. It can perform inspections including: total diameter of a single pack of cigarettes; circumference of a single cigarette; cigarette length; cigarette splice paper position; length of the exposed section of the cigarette pack pull line extending beyond the box; width of the gap between the cigarette pack lid and box body; height difference between the upper and lower edges of the frame paper at the opening of a hard-pack cigarette pack; squareness of the bottom outline of the cigarette pack; position of the seal on a soft-pack; comparison of the size of near-circular appearance defects on the cigarette pack; comparison of the width or length of packaging defects on the cigarette pack; and position of the pull line on the carton. This single inspection ruler integrates quantitative judgment functions for the appearance quality defects of cigarette packs and packaging, offering strong specialization and guidance. It significantly reduces reliance on subjective human factors and improves the accuracy of inspection results. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the planar structure of this utility model;

[0031] Figure 2 This is a schematic diagram illustrating the three-dimensional structure of the main body and the edge of the measuring ruler.

[0032] In the diagram, 1 is the measuring ruler; 2 is the long side guard; 3 is the short side guard; 4 is the first scale area; 5 is the total diameter inspection area; 61 is the through hole for inspection of circumference being too large; 62 is the through hole for inspection of circumference being too small; 7 is the first marking area; 8 is the third marking area; 9 is the standard position comparison band for the cigarette pack pull cord; 10 is the standard length comparison band for the exposed section; 11 is the second marking area; 12 is the height difference comparison band; 13 is the fourth marking area; 141 is the horizontal scale area; 142 is the vertical scale area; 151 is the circular comparison area; 152 is the rectangular strip comparison area; and 16 is the standard position comparison band for the carton pull cord. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0034] Please refer to Figures 1 to 2 The cigarette stick and packaging appearance quality defect detection ruler of this embodiment has a main body made of hard transparent material and a rectangular flat plate shape. With the measuring surface as the front, a set of adjacent long and short sides are provided with a stop edge perpendicular to the plate surface along the entire outer edge of the front side. The stop edge is made of stainless steel and is flat on the side facing the detection ruler, serving as an auxiliary reference surface; the detection ruler has:

[0035] The cigarette circumference inspection unit is configured with multiple sets of circumference inspection holes for various cigarette specifications. Each set includes a circumference oversized inspection through-hole and a circumference undersized inspection through-hole that penetrates the inspection gauge. For the corresponding cigarette specifications, the circumference of the circumference oversized inspection through-hole is 0.1 mm larger than the set circumference C of the cigarette, and the circumference of the circumference undersized inspection through-hole is 0.1 mm smaller than the set circumference C of the cigarette. In this embodiment, a set of circumference inspection holes is configured for the circumference of a conventional cigarette (set circumference value 24.4 mm), in which the circumference oversized inspection through-hole... The through-hole circumference is 24.5mm, and the circumference of the inspection through-hole for smaller circumference is 24.3mm. A set of circumferential inspection holes is configured for the circumference of the cigarette (set circumference value 17.0mm). Among them, the circumference of the inspection through-hole for larger circumference is 17.1mm, and the circumference of the inspection through-hole for smaller circumference is 16.9mm. When inspecting the circumference of the cigarette, taking a regular cigarette as an example, stand the single cigarette upright with the filter end facing up, and place it in the hole positions in turn, directly facing the inspection through-hole for larger circumference and the inspection through-hole for smaller circumference. This can quickly check whether its circumference is too large or too small.

[0036] The cigarette length inspection unit includes a first marking area parallel to the entire length of the long side and a long side guard. The first marking area is divided into three first reference bands parallel to the long side. The middle band is the standard cigarette length reference band with a bandwidth of W0. The distance L0 from the auxiliary reference plane of the long side guard to the edge of the middle band is equal to the set cigarette length L. The maximum allowable error of the cigarette length is equal to W0. The band closest to the long side guard is the excessively short cigarette length reference band with a bandwidth of W1. The band furthest from the middle band is the excessively short cigarette length reference band. One of the long side guards is a reference band for excessively long cigarette length, with a width of W2. The cigarette length inspection unit can be used to inspect the length of a single cigarette or to inspect the length of a batch of cigarettes at the same time. The operation method can be referred to: place the cigarette parallel to the short side of the measuring ruler and flat on the measuring surface, with the filter end against the auxiliary reference surface of the long side guard. If the end falls into the standard cigarette length reference band, the length meets the standard. If it falls into / does not reach the short cigarette length reference band, or falls into / exceeds the excessively long cigarette length reference band, the length does not meet the requirements.

[0037] The inspection unit for the gap width between the cigarette pack lid and the pack body has a second marking area formed on the measuring ruler, with the base of the second marking area parallel to the entire length of the short side, serving as the reference side for inspecting the gap width. The angles between the two sides and the base are set according to the angle of inclination of the gap between the lid and the pack body. The width of the sides is W. f0 As a standard width reference band for the seam between the lid and the box body, when the top edge of the cigarette pack lid is aligned with the seam width inspection reference edge, the seam between the lid and the box body that meets the width standard falls within the area of ​​the standard width reference band, and the seam width value between the lid and the box body is not greater than W. f0 The cigarette pack lid and body seam gap width inspection unit can inspect the seam gap width of two cigarette packs at a time. For the inspection of the seam gap width of a single cigarette pack, the cigarette pack is placed upright on the measuring surface, with the top edge of the lid flush with the seam width inspection reference edge. The cigarette pack is moved horizontally along the short side of the measuring ruler until the seam between the lid and the body is aligned with one of the waists. The width of the seam is compared with the waist width of the corresponding side. If the seam can fall completely within the waist width range of the corresponding side, it meets the standard; otherwise, it fails.

[0038] The height difference inspection unit between the upper and lower edges of the frame paper at the opening of a hard-pack cigarette pack includes the bottom of the second marked area and a height difference comparison band parallel to the bottom. The width of the height difference comparison band is W. G The distance from the bottom to the edge facing the bottom is L. G0 The height difference L between the upper and lower edges of the box frame paper and the box body opening is set. G The maximum allowable error for the height difference between the upper and lower edges of the box opening is equal to W. GThis inspection unit utilizes the bottom of the second marking area mentioned above. During inspection, the measuring ruler is placed flat on the front of the cigarette pack with the lid open, so that the bottom of the second marking area is flush with the upper edge of the cigarette pack's frame paper, and the height difference comparison band is on the same side as the lower edge of the box opening. If the lower edge of the box opening frame paper falls within the height difference comparison band, it meets the standard; if it does not reach or exceeds the height difference comparison band, it is unqualified.

[0039] In practice, the inspection scale for defects in the appearance of cigarette sticks and packaging is also equipped with:

[0040] The pull tab position inspection unit for soft-pack cigarette packs uses one edge of the measuring scale as the reference edge for pull tab position inspection. A standard position reference band for the pull tab, parallel to the reference edge, is set on the measuring scale, with a bandwidth of W. x The distance L from the edge of the inspection reference edge on the side facing the soft-pack pull wire position inspection reference edge is... x The set distance L between the pull cord of the soft-pack cigarette pack and the top edge of the pack. x0 Equal, set distance L x0 The maximum allowable error is equal to W. x In this embodiment, the short side of the measuring ruler parallel to the short side guard is used as the reference side for checking the position of the pull line of the soft pack. There are two standard position reference bands for the pull line of the soft pack cigarette pack, which can realize the inspection of the pull line position of two packs of soft pack cigarette packs at a time. The inspection of the pull line position of a single pack of soft pack cigarette pack is carried out by placing the soft pack cigarette pack flat on the measuring surface, with the top edge flush with the reference side for the pull line position inspection. If the pull line position falls into the standard position reference band for the pull line of the soft pack cigarette pack, it meets the standard. If it does not reach or exceeds the standard position, it does not meet the requirements.

[0041] The inspection unit for the exposed length of the cigarette pack pull cord beyond the box body includes a standard length comparison band with a width of W on the measuring ruler. L One edge is used as the reference edge for inspecting the length of the exposed section, and the string extends beyond the set length L of the exposed section of the box. L Less than or equal to W L In this embodiment, one set of rectangular strip-shaped reference areas in the rectangular defect reference unit can be selected as the standard length reference strip for the exposed section. The width of this set of rectangular strip-shaped reference areas is W. L During inspection, align the side of the cigarette pack where the end of the pull line is located with the edge closer to the end of the pull line to the standard edge for inspecting the length of the exposed section. Point the pull line towards the other edge of the standard length comparison band for the exposed section. If the end of the pull line falls into the standard length comparison band for the exposed section, it meets the standard. If it exceeds the standard length comparison band for the exposed section, it does not meet the requirements.

[0042] The unit for inspecting the total diameter of cigarettes in a single pack includes a first scale area along the entire length of the other side's long edge and a short side guard. The first scale area is divided into a total diameter inspection zone of length B. The measurement start end is flush with the auxiliary reference surface of the short side guard. The minimum scale value of the total diameter inspection zone is A's distance from the measurement start end. The set diameter of the cigarettes is D, and the total number of cigarettes in a single pack is N. The maximum allowable error of the total diameter of all cigarettes in a single pack is equal to B; A = D × N. Taking 20 cigarettes in a single pack as an example, during inspection, the cigarettes can be placed parallel to the short side of the inspection ruler, with each cigarette along the long side of the inspection ruler. The cigarettes are arranged in a single row, laid flat on the measuring surface of the measuring ruler. The outermost cigarettes facing the short side edge are placed against the auxiliary reference surface of the short side edge. The outermost edge of the cigarettes on the other side points to the first scale area. Observe whether the scale they point to falls into the total diameter inspection area. If it falls into the area, it meets the standard; if it exceeds or does not reach the total diameter inspection area, it does not meet the standard. In this embodiment, the total diameter inspection area is set at the end of the first scale area. The scale lines in the area are longer than the other scale lines in the first scale area, which is convenient for identification and reading judgment. The measurement accuracy of the first scale area is 0.5mm. It can also be used for the precise measurement of cigarette length, diameter, and packaging material size.

[0043] The cigarette tipping paper position inspection unit includes a third marking area and a side guard along the long edge, both parallel to the entire length of the long edge. The third marking area is divided into three parallel second reference bands, with the central band serving as the standard tipping paper position reference band, with a width of W. z0 The distance L from the auxiliary reference plane of the long side stop edge to the long side stop edge is... z0 The set distance L from the end of the filter tip to the junction of the tipping paper and the cigarette paper. z The maximum permissible error in the distance from the junction of the tipping paper and the cigarette paper to the filter tip is equal to W. z0 The strip closest to the long side guard is a reference strip for the position where the paper is too close to the mounting edge; its width is W. z1 The strip furthest from the long side guard is a reference strip for the position where the paper splicing is too far away; its width is W. z2 The cigarette tipping paper position inspection unit can be used to simultaneously inspect the length of the tipping paper for a single cigarette or a batch of cigarettes. The operation method can be the same as described above. Place the cigarette parallel to the short side of the measuring ruler and flat on the measuring surface. Place the filter end against the auxiliary reference surface of the long side guard. If the position where the tipping paper meets the cigarette paper falls into the standard position reference zone of the tipping paper, it meets the standard. If it falls into / does not reach the position reference zone of the tipping paper too close to the tipping paper, or falls into / exceeds the position reference zone of the tipping paper too far from the tipping paper, the position does not meet the requirements. There is at least one third marking area, and multiple third marking areas are distributed in parallel and at intervals.

[0044] The inspection unit for the squareness of the bottom outer contour of the cigarette pack includes a fourth marking area with a rectangular outline on the measuring ruler. The inner contour of the fourth marking area is set according to the outer contour of the bottom of the standard cigarette pack. The standard cigarette pack is placed upright in the fourth marking area with its bottom centered, and a gap of 1mm is left between the outer surface and the inner contour of the fourth marking area. During inspection, the cigarette pack is placed upright in the fourth marking area with its bottom centered, and the degree of deformation of the bottom outer contour of the cigarette pack is judged with the inner contour of the fourth marking area as a reference.

[0045] The seal position inspection unit includes a horizontal scale area and a vertical scale area arranged in a cross shape. Both the horizontal and vertical scale areas use their intersection point as the measurement starting point. The scales on each area are divided into two symmetrical segments centered on the measurement starting point, used to determine the centering of the seal on the cigarette pack. During inspection, the measuring ruler is placed flat on the side of the cigarette pack with the seal. The center of the cigarette pack is found using the scales in the horizontal or vertical scale area, aligning it with the measurement starting point. The position of the seal is then observed to determine if it meets the centering criteria. The seal position inspection unit can also be used to determine whether the patterns on other cigarette packs are centrally symmetrical or axially symmetrical on the cigarette pack surface. In this embodiment, the measurement starting point of the seal position inspection unit coincides with the center of the cigarette pack bottom outer contour squareness inspection unit. The horizontal scale area is parallel to the short side of the measuring ruler, and the vertical scale area is parallel to the long side of the measuring ruler.

[0046] The circular defect reference unit sets multiple sets of circular comparison areas on the measuring surface. These circular comparison areas are arranged at intervals in order of increasing diameter and are used to compare the size of circular appearance quality defects on the cigarette pack. These circular appearance quality defects include stains, discoloration, and dirt.

[0047] The rectangular defect reference unit consists of multiple sets of rectangular strip-shaped comparison areas set on the measurement surface. These rectangular strip-shaped comparison areas are parallel to each other and arranged in order of increasing width. The width of each rectangular strip-shaped comparison area is used for comparison of the width or length of the cigarette packaging quality defects. These cigarette packaging quality defects include unqualified transparent paper overlap width, misaligned pull tab spacing, etc.

[0048] The strip box pull line position inspection unit uses one edge of the measuring ruler as the strip box inspection reference edge. A standard position comparison band for the strip box pull line, parallel to the strip box inspection reference edge, is set on the measuring ruler, with a bandwidth of W. h The distance L from the edge of the strip box inspection reference side to the strip box pull line reference side is... h The set distance L of the outer edge of the closer side of the carton, parallel to the distance of the carton pull cord. h Equal, set distance L h The maximum allowable error is equal to W. hPlace the strip box flat on the measuring surface, parallel to the long side of the measuring ruler, with one end against the strip box inspection reference edge. Observe the position of the strip box pull line. If it falls into the standard position reference band of the strip box pull line, it meets the standard. If it does not reach or exceeds the standard position reference band of the strip box pull line, it is unqualified.

[0049] The marked areas, control bands, and control zones are distinguished from the main body of the measuring ruler and are easy to observe and judge with the naked eye. The edges are marked with scribing lines, and the interior of the areas / bands is made of frosted material or covered with a frosted film. The graduation lines of each scale area can be marked with wear-resistant and corrosion-resistant materials.

[0050] A protective sleeve with a matching external size can be provided for the measuring ruler to store it.

[0051] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A cigarette and a package appearance quality defect detection scale, characterized in that, The detection ruler body is made of transparent material and has a rectangular flat shape. The measurement surface is the front surface. A vertical blocking edge is arranged along the outer edge of the adjacent group of long side and short side on the front surface. The side of the blocking edge facing the detection ruler is flat and serves as an auxiliary reference surface. The detection ruler is provided with: A cigarette circumference inspection unit is configured with multiple groups of circumference inspection holes corresponding to multiple specifications of cigarettes. Each group of circumference inspection holes includes a circumference larger-than-standard inspection through hole and a circumference smaller-than-standard inspection through hole. The circumference larger-than-standard inspection through hole has a circumference that is 0.1 mm larger than the set circumference C of the cigarette, and the circumference smaller-than-standard inspection through hole has a circumference that is 0.1 mm smaller than the set circumference C of the cigarette. A cigarette length inspection unit includes a first marking area parallel to the long side along the entire length and a long side blocking edge. The first marking area is divided into three parallel first reference bands. The middle one is a standard cigarette length reference band with a width of W0. The distance L0 from the edge of the long side blocking edge on one side to the auxiliary reference surface of the long side blocking edge is equal to the set length L of the cigarette. The maximum allowable error of the cigarette length is equal to W0. The band close to the long side blocking edge is an excessively short cigarette length reference band with a width of W1. The band away from the long side blocking edge is an excessively long cigarette length reference band with a width of W2. The cigarette packet cover and the box body seam gap width inspection unit, the detection ruler is provided with an isosceles triangle profile second mark area, the bottom of the second mark area is parallel to the short edge along the full length, as the seam width inspection reference edge, the included angle of the two sides and the bottom is set according to the corresponding angle of the cover and the box body seam, the width W f0 , as the standard width contrast band of the seam between the cover and the box body, when the top edge of the cigarette packet cover is aligned with the seam width inspection reference edge, the seam between the cover and the box body that meets the width standard falls into the area where the standard width contrast band is located, and the seam width value between the cover and the box body is not greater than W f0 ; The height difference inspection unit between the upper edge and the lower edge of the box opening frame paper of the hard box cigarette packet includes a bottom of the second mark area and a height difference contrast band parallel to the bottom, the width of the height difference contrast band is W G , the distance between the edge of the bottom side and the bottom is L G0 , the height difference between the upper edge and the lower edge of the box opening frame paper of the box body is equal to L G , and the maximum value of the allowable error of the height difference between the upper edge and the lower edge of the box opening frame paper of the box body is equal to W G .

2. The cigarette and the appearance quality defect detection scale according to claim 1, wherein, The detection ruler is also provided with: The soft pack cigarette package pull line position inspection unit uses one side edge of the detection ruler as a soft pack pull line position inspection reference edge, and a cigarette package pull line standard position contrast tape parallel to the soft pack pull line position inspection reference edge is arranged on the detection ruler, with a width of W x The distance from the edge on the side of the soft pack pull line position inspection reference edge to the soft pack pull line position inspection reference edge is L x The set distance L x0 of the soft pack cigarette package pull line from the top edge of the soft pack is equal, and the maximum allowable error of the set distance L x0 is equal to W x .

3. The cigarette and the appearance quality defect detection scale according to claim 1, wherein, The detection ruler is also provided with: The exposed section length inspection unit of the cigarette packet puller is provided with a standard length contrast tape on the detection ruler, and the tape width is W L One side edge is used as the exposed section length inspection reference edge, and the set length L of the exposed section of the puller beyond the box body L is less than or equal to W L .

4. The cigarette and the appearance quality defect detection scale according to claim 1, wherein, The detection ruler is also provided with: A single-pack cigarette diameter sum inspection unit includes a first scale area arranged along the entire length of the other long side outer edge and a short side blocking edge. The first scale area is divided into a diameter sum inspection area with a length of B. The measurement starting end is flush with the auxiliary reference surface of the short side blocking edge. The distance A from the minimum scale value of the diameter sum inspection area to the measurement starting end is equal to the set diameter D of the cigarette. The total number of cigarettes in a single-pack cigarette package is N. The maximum allowable error of the diameter sum of all cigarettes in a single-pack cigarette package is equal to B. A = D × N.

5. The cigarette and the appearance quality defect detection scale according to claim 1, wherein, The detection ruler is also provided with: The cigarette tipping paper position inspection unit comprises a third marking area arranged along the full length parallel to the long side and a long side side stop; the third marking area is divided into three parallel-to-long-side second reference strips, one of which is a tipping paper standard position reference strip with a width of W z0 , the distance from the edge of the long side side stop to the auxiliary reference surface of the long side side stop is L z0 , the distance from the tipping paper and cigarette paper joint to the filter end is equal to L z , the maximum allowable error of the distance from the tipping paper and cigarette paper joint to the filter end is equal to W z0 , one of the edges close to the long side side stop is a tipping paper too-close position reference strip with a width of W z1 , one of the edges away from the long side side stop is a tipping paper too-far position reference strip with a width of W z2 .

6. The cigarette and the appearance quality defect detection scale according to claim 1, wherein, The detection ruler is also provided with: A single-pack cigarette diameter sum inspection unit includes a first scale area arranged along the entire length of the other long side outer edge and a short side blocking edge. The first scale area is divided into a diameter sum inspection area with a length of B. The measurement starting end is flush with the auxiliary reference surface of the short side blocking edge. The distance A from the minimum scale value of the diameter sum inspection area to the measurement starting end is equal to the set diameter D of the cigarette. The total number of cigarettes in a single-pack cigarette package is N. The maximum allowable error of the diameter sum of all cigarettes in a single-pack cigarette package is equal to B. A = D × N.

7. The cigarette and the appearance quality defect detection scale according to claim 1, wherein, The detection ruler is also provided with: A seal position inspection unit includes a horizontal scale area and a vertical scale area arranged in a cross shape. The horizontal scale area and the vertical scale area both have a measurement starting point. The scales are symmetrically distributed on both sides of the measurement starting point. The seal position inspection unit is used to determine the position of the seal on the cigarette package.

8. The cigarette and the appearance quality defect detection scale according to claim 7, characterized in that: The measurement starting point of the seal position inspection unit coincides with the center of the single-pack cigarette bottom outline squareness inspection unit. The horizontal scale area is parallel to the short side of the detection ruler, and the vertical scale area is parallel to the long side of the detection ruler.

9. The cigarette and the appearance quality defect detection scale according to claim 1, wherein, The detection ruler is also provided with: A circular defect reference unit is provided with multiple circular reference areas on the measurement surface. The multiple circular reference areas are arranged in order from small to large in diameter. The circular defect reference unit is used to compare the size of the circular appearance quality defects on the cigarette package. The rectangular defect reference unit is provided with a plurality of groups of rectangular strip-shaped reference areas on a measuring surface, the plurality of groups of rectangular strip-shaped reference areas are arranged in parallel to each other and in order of width from narrow to wide at intervals, and the width of each rectangular strip-shaped reference area is used for comparison of the width or length of the quality defect of the cigarette packet.

10. The cigarette and the appearance quality defect detection scale according to claim 1, wherein, The detection ruler is also provided with a carton pull line position detection unit, one side edge of the detection ruler is used as a carton detection reference edge, a carton pull line standard position contrast tape parallel to the carton detection reference edge is arranged on the detection ruler, and the tape width is W h The distance between the edge on the side of the carton detection reference edge and the carton pull line reference edge is L h The set distance L of the closer side carton outer edge parallel to the carton pull line distance is equal h The maximum allowable error of the set distance L h is equal to W h .

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