Cigarette screening mechanism for detecting damaged cigarettes

Abstract

The utility model discloses a cigarette screening mechanism for detecting damaged cigarettes, which comprises a rack, a main table plate is fixed in the rack, a horizontally arranged belt box is arranged below the main table plate, a horizontal conveying belt is arranged in the belt box, and an outlet of a cigarette receiving hopper extends into the belt box and is positioned above the horizontal conveying belt. Partition plates are evenly fixed to the horizontal conveying belt at intervals. A sorting detection mechanism is arranged below the belt box, the sorting detection mechanism comprises two vacuum synchronizing wheels rotating in opposite directions and a CCD camera used for shooting appearance images of the cigarettes, the vacuum synchronizing wheels are used for adsorbing and fixing the cigarettes in the sorting detection process, and the two vacuum synchronizing wheels are arranged up and down; a guide hopper is installed on the upper portion of the vacuum synchronizing wheel, and a transfer slope or a scratched cigarette removing mechanism is arranged between the belt box and the guide hopper. According to the utility model, scratched or damaged cigarettes can be removed in advance, so that the overall reliability of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the field of tobacco equipment, in particular to a cigarette screening mechanism for detecting damaged cigarettes. Background Art

[0002] When the finished packaged cigarettes are inspected before leaving the factory, it may be found that the plastic film of the finished packaged cigarettes is wrinkled, dirty, contains tobacco, has uneven edges, and other finished packaged cigarettes (abbreviated as cigarette packs) that do not meet the factory requirements. However, the cigarette packs contain cigarettes that have passed the previous process inspection. If the entire pack of cigarettes that are rejected is discarded simply because of poor outer packaging, the scrap rate will be high and a large amount of various cigarette raw and auxiliary materials will be wasted. Therefore, it is necessary to unpack such cigarette packs and screen the cigarettes with good quality after unpacking. Manual work alone cannot meet production needs. In the design and verification process of related equipment, it is found that if the cigarettes to be screened are scratched or partially damaged during the splitting process, broken tobacco will leak out during the transmission process, thereby clogging the adsorption holes of the vacuum synchronous wheel. Therefore, it is necessary to conduct preliminary screening before the cigarettes to be screened are adsorbed by the vacuum synchronous wheel, in order to initially remove the scratched cigarettes. Summary of the invention

[0003] In order to solve the deficiencies in the prior art, the utility model provides a cigarette screening mechanism for detecting damaged cigarettes, which removes scratched or damaged cigarettes in advance to improve the overall reliability of the device.

[0004] The utility model provides a cigarette screening mechanism for detecting damaged cigarettes, comprising a frame, a main table fixed in the frame, a conveying support plate arranged on the main table, cigarette dropping holes symmetrically opened on the main table on both sides of the conveying support plate, and a cigarette receiving pipe fixed below the cigarette dropping holes.

[0005] Below the main table is a cigarette re-selection space, in which a belt box and a sorting and detection mechanism are arranged. The belt box is arranged horizontally, and a horizontal conveyor belt is arranged inside the belt box. The horizontal conveyor belt is driven by a conveyor wheel. The outlet for receiving the tobacco pipe extends into the belt box and is located above the horizontal conveyor belt. Partitions are evenly spaced and fixed on the horizontal conveyor belt.

[0006] The sorting and testing mechanism comprises two vacuum synchronous wheels rotating in opposite directions and a CCD camera for photographing the appearance of cigarettes. The vacuum synchronous wheels are used to adsorb and fix the cigarettes during the sorting and testing process. The two vacuum synchronous wheels are arranged one above and one below.

[0007] A guide bucket is installed on the upper part of the vacuum synchronous wheel, and a transfer slope or a scratched cigarette rejection mechanism is arranged between the belt box and the guide bucket.

[0008] Preferably, the scratched cigarette rejection mechanism comprises a negative pressure adsorption conveying mechanism, a scratch detection camera and a retractable push rod member are provided on one side of the negative pressure adsorption conveying mechanism, the size of the push rod member matches the size of the arc groove, and the push rod member and the arc groove are axially in the same direction.

[0009] Preferably, the negative pressure adsorption conveying mechanism includes a negative pressure cavity and a perforated belt that can rotate around the negative pressure cavity, the negative pressure cavity is connected to the negative pressure air source, the perforated belt is adsorbed on the negative pressure cavity, and arc grooves are evenly arranged on the perforated belt.

[0010] Preferably, the belt box and the negative pressure adsorption conveying mechanism are also provided with a transfer bucket.

[0011] Preferably, an air blowing member for separating debris is provided in the belt box adjacent to the outlet of the tobacco pipe, and a debris collecting port is provided on one side of the bottom of the belt box, and the debris collecting port is connected to a debris collecting box.

[0012] Preferably, two horizontal conveyor belts are provided and are arranged at intervals.

[0013] Preferably, the sorting and detection mechanism also includes a sorting bracket, two vacuum synchronous wheels are installed on the sorting bracket, and cigarette storage grooves are evenly arranged in the circumferential direction on the circumferential surface of the vacuum synchronous wheel. The size of the cigarette storage grooves matches the size of a single cigarette, and the extension direction of the cigarette storage grooves is parallel to the radial direction of the vacuum synchronous wheel. An adsorption hole is opened at the bottom of each cigarette storage groove, and the adsorption hole is connected to a negative pressure air source. The adsorption strength of the adsorption holes on the same vacuum synchronous wheel is consistent, and the adsorption strength of the adsorption holes on the lower vacuum synchronous wheel is slightly greater than that of the adsorption holes on the upper vacuum synchronous wheel; the CCD camera is respectively arranged on the left and right sides of the vacuum synchronous wheel.

[0014] Preferably, a wind blowing component is provided on the side of the lower vacuum synchronous wheel, and the blowing direction of the wind blowing component is from top to bottom and tangent to the outer periphery of the lower vacuum synchronous wheel.

[0015] By adopting the above technical solution, the utility model has the following advantages:

[0016] The utility model conveys the cigarettes to be screened by means of a belt box. After the cigarettes are conveyed to a sorting and detecting mechanism, the sorting and detecting mechanism can distinguish good cigarettes from bad cigarettes by detecting their appearance. A scratched cigarette rejection mechanism arranged between the belt box and the guide bucket can pre-detect and reject scratched or damaged cigarettes, thereby improving the overall reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the sorting and detecting mechanism in the utility model.

[0019] Reference numerals: 11, main table, 13, cigarette drop hole, 14, cigarette pipe connection;

[0020] 61. conveying wheel, 62. horizontal conveyor belt, 63. partition, 64. negative pressure chamber, 65. perforated belt, 66. transfer bucket, 67. guide bucket, 68. debris collection port;

[0021] 7. Sorting and detecting mechanism, 71. Vacuum synchronous wheel, 72. Smoke storage tank, 73. CCD camera, 74. Sorting bracket, 75. Light source, 76. CCD camera mounting bracket, 77. Light source bracket;

[0022] 81. Defective product collection box, 82. Good product collection box. Implementation

[0023] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are 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 therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0025] like Figure 1 As shown, the utility model is a cigarette screening mechanism for detecting damaged cigarettes, comprising a frame, a main plate 11 is fixed in the frame, a conveying support plate is arranged on the main plate 11, cigarette dropping holes 13 are symmetrically opened on the main plate 11 on both sides of the conveying support plate, a cigarette receiving pipe 14 is fixed below the cigarette dropping hole 13, and a cigarette pack splitting space is above the main plate 11.

[0026] Below the main table 11 is a cigarette reselection space, in which a belt box and a sorting and detecting mechanism 7 are arranged. The belt box is arranged horizontally, and a horizontal conveyor belt 62 is arranged in the belt box. The horizontal conveyor belt 62 is driven by a conveying wheel 61. The outlet of the tobacco pipe 14 extends into the belt box and is located above the horizontal conveyor belt 62. Partitions 63 are evenly spaced and fixed on the horizontal conveyor belt 62. The distance between adjacent partitions 63 and the outlet width of the tobacco pipe 14 match the size of a single cigarette.

[0027] The sorting and testing mechanism 7 comprises two vacuum synchronous wheels 71 rotating in opposite directions from each other and a CCD camera 73 for photographing the appearance of cigarettes. The vacuum synchronous wheels 71 are used to adsorb and fix cigarettes during the sorting and testing process. The two vacuum synchronous wheels 71 are arranged one above the other. The upper vacuum synchronous wheel 71 cooperates with the lower vacuum synchronous wheel 71 to make the circumference of the cigarette completely present.

[0028] A guide bucket 67 is installed on the upper part of the vacuum synchronous wheel 71, and a transfer slope or a scratched cigarette rejection mechanism is arranged between the belt box and the guide bucket 67.

[0029] When screening cigarettes, the cigarettes are transported to the sorting and testing mechanism 7 via a belt box. The appearance image of the cigarettes taken by the CCD camera 73 is compared with the image of qualified cigarettes to distinguish good cigarettes from defective cigarettes. Defective cigarettes include those with damaged cigarette bodies, damaged cigarette holders, excessive tobacco, incomplete tobacco, etc. The comparison process is a prior art and will not be described in detail. After the distinction, the defective cigarettes fall into the defective product collection box 81, and the good cigarettes fall into the good product collection box 82.

[0030] When a transfer slope is provided between the belt box and the guide bucket 67 , the cigarettes on the horizontal conveyor belt 62 enter the guide bucket 67 through the transfer slope and are then adsorbed by the vacuum synchronous wheel 71 .

[0031] When a scratched cigarette removal mechanism is set between the belt box and the guide bucket 67, the scratched cigarette removal mechanism includes a negative pressure adsorption conveying mechanism, and a scratch detection camera and a retractable push rod member are set on one side of the negative pressure adsorption conveying mechanism. The size of the push rod member matches the size of the arc groove, and the push rod member and the arc groove are axially in the same direction.

[0032] After being cut, some of the cigarettes dumped into the belt box may have surface scratches or partial damage, resulting in leakage of broken tobacco. If the broken tobacco enters the vacuum synchronous wheel 71 with the cigarettes, it is easy to cause the adsorption holes to be blocked, affecting the detection and sorting. Preliminary detection and removal of scratched cigarettes before entering the vacuum synchronous wheel 71 is beneficial to improving the reliability of the equipment.

[0033] Furthermore, as one of the embodiments of the utility model, the negative pressure adsorption and conveying mechanism includes a negative pressure cavity 64 and a perforated belt 65 that can rotate around the negative pressure cavity 64, the negative pressure cavity 64 is connected to the negative pressure gas source, the perforated belt 65 is adsorbed on the negative pressure cavity 64, and arc grooves are evenly arranged on the perforated belt 65. The cigarettes on the horizontal conveyor belt 62 are adsorbed in the arc grooves and are transported to the guide bucket 67 as the perforated belt 65 rotates.

[0034] Furthermore, the belt box and the negative pressure adsorption conveying mechanism are also provided with a transfer bucket 66 .

[0035] Furthermore, as one of the embodiments of the utility model, a blowing member for separating debris is provided at the outlet of the adjacent tobacco pipe 14 in the belt box, and a debris collecting port 68 is provided on one side of the bottom of the belt box. The debris collecting port 68 is connected to the debris collecting box. Since the weight of the broken tobacco shreds and paper pieces is lighter than that of a complete cigarette, they can be carried to the debris collecting port 68 by the airflow blown out by the blowing member.

[0036] Furthermore, two horizontal conveyor belts 62 are provided and spaced apart, and the space between the two horizontal conveyor belts 62 is conducive to the debris being carried away by the airflow, thereby preventing the debris from clogging the adsorption holes of the vacuum synchronous wheel 71 during subsequent sorting.

[0037] Furthermore, as one of the embodiments of the present utility model, the sorting and detecting mechanism 7 also includes a sorting bracket 74, two vacuum synchronous wheels 71 are installed on the sorting bracket 74, the vacuum synchronous wheel 71 is driven by a reducer, and the circumferential surface of the vacuum synchronous wheel 71 is evenly arranged with cigarette storage grooves 72 in the circumferential direction, the size of the cigarette storage grooves 72 matches the size of a single cigarette, the extension direction of the cigarette storage grooves 72 is parallel to the radial direction of the vacuum synchronous wheel 71, and each cigarette storage groove 72 is provided with an adsorption hole at the bottom, and the adsorption hole is connected to a negative pressure gas source, which can be an air pump, a vacuum pump, a gas pipeline in a factory, etc. The adsorption strength of the adsorption holes on the same vacuum synchronous wheel 71 is consistent, and the lower vacuum synchronous wheel 71 has a uniform adsorption force. The adsorption force of the adsorption holes on the step wheel 71 is slightly greater than that of the adsorption holes on the upper vacuum synchronous wheel 71. When the cigarette adsorbed on the upper vacuum synchronous wheel 71 rotates to the top of the lower vacuum synchronous wheel 71, it is adsorbed by the lower vacuum synchronous wheel 71 with greater adsorption force, and the cigarette is turned over. Through the cooperation of the upper and lower vacuum synchronous wheels 71, the circumference of the cigarette can be fully presented; the CCD camera 73 is respectively arranged on the left and right sides of the vacuum synchronous wheel 71. In this embodiment, the central axis of the CCD camera 73 is located on the horizontal symmetry plane of the vacuum synchronous wheel 71, and the lens of the CCD camera 73 faces the side of the vacuum synchronous wheel 71, which is conducive to photographing the appearance of the circumference of the cigarette;

[0038] Furthermore, a wind blowing assembly is provided on the side of the lower vacuum synchronous wheel 71, and the blowing direction of the wind blowing assembly is from top to bottom and tangent to the outer periphery of the lower vacuum synchronous wheel 71. The defective products of the wind blowing assembly are blown into the defective product collection box 81 below, and the good cigarettes fall into the good product collection box 82 when the lower vacuum synchronous wheel 71 continues to rotate clockwise to the top of the good product collection box 82.

[0039] Furthermore, an end face inspection camera is also provided on the front side of each vacuum synchronous wheel 71. Since the directions of the cigarette packs in the previous process are unified, during the sorting and inspection process, the direction of the cigarette holders can be uniformly directed toward the front side. The end face inspection camera can capture the end face of the cigarette holders, further improving the good product inspection standards and inspection accuracy.

[0040] Furthermore, the upper vacuum synchronous wheel 71 rotates counterclockwise to bring the cigarettes to the left side of the upper vacuum synchronous wheel 71, and the CCD camera 73 on the left side takes the appearance image of the cigarettes, and the lower vacuum synchronous wheel 71 rotates clockwise to bring the cigarettes to the right side of the lower vacuum synchronous wheel 71, and the CCD camera 73 on the right side takes the appearance image of the cigarettes. In this embodiment, after the cigarettes on the lower vacuum synchronous wheel 71 are inspected, the entire circumference of the cigarettes is photographed, and after distinguishing the defective cigarettes from the good cigarettes, the defective cigarettes and the good cigarettes fall from the lower vacuum synchronous wheel 71 into the corresponding collection box.

[0041] Furthermore, light sources 75 are provided on the left and right sides of the vacuum synchronous wheel 71, so that the appearance of the cigarette can be clearly presented in the image taken by the CCD camera 73. The CCD camera 73 is supported on a CCD camera mounting bracket 76, and a light source bracket 77 is adjustably fixed on the CCD camera mounting bracket 76.

[0042] Furthermore, the defective product collection box 81 and the good product collection box 82 are detachably mounted on the frame, so as to facilitate the taking out and putting back of the collection boxes.

[0043] The above embodiments do not impose any formal restrictions on the shape, material, structure, etc. of the utility model. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model are within the protection scope of the technical solution of the utility model.

[0044] It should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method 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 can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A cigarette screening mechanism for detecting damaged cigarettes, comprising a frame, characterized in that: A main platform is fixed inside the frame, on which smoke drop holes are symmetrically opened, and a smoke receiving pipe is fixed below the smoke drop holes. Below the main table is a cigarette re-selection space, in which a belt box and a sorting and detection mechanism are arranged. The belt box is arranged horizontally, and a horizontal conveyor belt is arranged inside the belt box. The horizontal conveyor belt is driven by a conveyor wheel. The outlet for receiving the tobacco pipe extends into the belt box and is located above the horizontal conveyor belt. Partitions are evenly spaced and fixed on the horizontal conveyor belt. The sorting and testing mechanism comprises two vacuum synchronous wheels rotating in opposite directions and a CCD camera for photographing the appearance of cigarettes. The vacuum synchronous wheels are used to adsorb and fix the cigarettes during the sorting and testing process. The two vacuum synchronous wheels are arranged one above and one below. A guide bucket is installed on the upper part of the vacuum synchronous wheel, and a transfer slope or a scratched cigarette rejection mechanism is arranged between the belt box and the guide bucket.

2. A cigarette screening mechanism for detecting damaged cigarettes according to claim 1, characterized in that: The scratched cigarette rejection mechanism comprises a negative pressure adsorption conveying mechanism, one side of which is provided with a scratch detection camera and a retractable push rod, the size of which matches that of the arc groove, and the push rod and the arc groove are axially in the same direction.

3. A cigarette screening mechanism for detecting damaged cigarettes according to claim 2, characterized in that: The negative pressure adsorption conveying mechanism comprises a negative pressure cavity and a perforated belt which can rotate around the negative pressure cavity. The negative pressure cavity is connected to a negative pressure gas source. The perforated belt is adsorbed on the negative pressure cavity. Arc grooves are evenly arranged on the perforated belt.

4. A cigarette screening mechanism for detecting damaged cigarettes according to claim 2, characterized in that: The belt box and the negative pressure adsorption conveying mechanism are also provided with a transfer bucket.

5. The cigarette screening mechanism for detecting damaged cigarettes according to claim 1, characterized in that: An air blowing member for separating debris is arranged in the belt box adjacent to the outlet of the tobacco pipe. A debris collecting port is arranged on one side of the bottom of the belt box, and the debris collecting port is connected to a debris collecting box.

6. A cigarette screening mechanism for detecting damaged cigarettes according to claim 5, characterized in that: The horizontal conveyor belts are provided with two and are arranged at intervals.

7. A cigarette screening mechanism for detecting damaged cigarettes according to any one of claims 1 to 6, characterized in that: The sorting and detection mechanism also includes a sorting bracket, two vacuum synchronous wheels are installed on the sorting bracket, and cigarette storage grooves are evenly arranged in the circumferential direction along the circumferential surface of the vacuum synchronous wheel. The size of the cigarette storage grooves matches the size of a single cigarette, and the extension direction of the cigarette storage grooves is parallel to the radial direction of the vacuum synchronous wheel. An adsorption hole is opened at the bottom of each cigarette storage groove, and the adsorption hole is connected to a negative pressure gas source. The adsorption strength of the adsorption holes on the same vacuum synchronous wheel is consistent, and the adsorption strength of the adsorption holes on the lower vacuum synchronous wheel is greater than that of the adsorption holes on the upper vacuum synchronous wheel; the CCD camera is respectively arranged on the left and right sides of the vacuum synchronous wheel.

8. The cigarette screening mechanism for detecting damaged cigarettes according to claim 7, characterized in that: A wind blowing component is arranged on the side of the lower vacuum synchronous wheel, and the blowing direction of the wind blowing component is from top to bottom and tangent to the outer periphery of the lower vacuum synchronous wheel.

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