A cigarette rod tipping mechanism

Abstract

The present invention provides a cigarette feeding mechanism, which relates to the field of cigarette manufacturing equipment and can automatically complete the visual inspection of special-shaped cigarettes, automatically output qualified products, and automatically reject unqualified products. The cigarette feeding mechanism includes a supporting bottom plate, a rectangular transmission synchronous belt assembly, a blanking guiding assembly, a visual inspection assembly, and a rejection and discharging assembly arranged on the supporting bottom plate; the blanking guiding assembly is located directly above one side of the rectangular transmission synchronous belt assembly to guide the cigarettes into the rectangular transmission synchronous belt assembly through the blanking guiding assembly; the visual inspection assembly is arranged upstream of the output side of the rectangular transmission synchronous belt assembly for detecting whether the cigarettes in the rectangular transmission synchronous belt assembly are qualified; the rejection and discharging assembly is arranged downstream of the output side of the rectangular transmission synchronous belt assembly for rejecting unqualified cigarettes and outputting qualified cigarettes according to the detection result of the visual inspection assembly on the cigarettes.

Description

Technical Field

[0001] The present invention relates to the field of cigarette manufacturing equipment, and particularly to a cigarette butt feeding mechanism. Background Art

[0002] Currently, most cigarette butts on the market are mainly cylindrical. In order to improve the appearance and attractiveness to consumers, the research and development of special-shaped cigarettes are also underway. However, there are great difficulties in the large-scale production of special-shaped cigarettes. It is necessary to develop a forming device for special-shaped cigarette butts to ensure the production speed and appearance. The special-shaped cigarette butt forming machine usually needs to adopt different mechanisms for related production at different production stages.

[0003] The feeding mechanism is the last conveying component of the cigarette butt. However, the current feeding mechanisms often have unreasonable structures and do not effectively reject unqualified products. For special-shaped cigarette butts, how to effectively feed them is a problem that needs to be solved currently. Summary of the Invention

[0004] To solve the above problems, an embodiment of the present invention provides a cigarette butt feeding mechanism, which can automatically complete the visual inspection of special-shaped cigarettes, automatically output qualified products, and automatically reject unqualified products.

[0005] To achieve the above object, the embodiment of the present invention adopts the following technical solutions:

[0006] The embodiment of the present application provides a cigarette butt feeding mechanism, including a supporting bottom plate, and a square-loop transmission synchronous belt assembly, a blanking guiding assembly, a visual inspection assembly, and a rejection and discharging assembly arranged on the supporting bottom plate; the blanking guiding assembly is located directly above one side of the square-loop transmission synchronous belt assembly to guide cigarette butts into the square-loop transmission synchronous belt assembly through the blanking guiding assembly; the visual inspection assembly is arranged upstream of the output side of the square-loop transmission synchronous belt assembly for detecting whether the cigarette butts in the square-loop transmission synchronous belt assembly are qualified; the rejection and discharging assembly is arranged downstream of the output side of the square-loop transmission synchronous belt assembly for rejecting unqualified cigarette butts and outputting qualified cigarette butts according to the detection result of the visual inspection assembly on the cigarette butts.

[0007] In some possible implementation manners, the figure-eight-shaped transmission synchronous belt assembly includes: a figure-eight-shaped handling block support plate located above the support bottom plate, a blanking handling block, two first tensioning synchronous idler pulleys, two driving synchronous belt pulleys, an annular synchronous belt, and a plurality of second tensioning synchronous idler pulleys; the figure-eight-shaped handling block support plate is suspended on the support bottom plate through a plurality of columns below, and a plurality of the blanking handling blocks are evenly and dispersedly arranged on the figure-eight-shaped handling block support plate; one of a set of diagonals on the inner side of the figure-eight-shaped handling block support plate is respectively provided with one of the first tensioning synchronous idler pulleys, and the other set of diagonals is respectively provided with one of the driving synchronous belt pulleys; the annular synchronous belt is tightly sleeved outside the two driving synchronous belt pulleys and the two first tensioning synchronous idler pulleys, and the outer side of the annular synchronous belt is in contact with the inner side of the figure-eight-shaped handling block support plate; a plurality of the second tensioning synchronous idler pulleys are arranged on the inner side of the annular synchronous belt at positions corresponding to the rejection and discharging assembly; the figure-eight-shaped transmission synchronous belt assembly further includes a transmission belt, two transmission wheels, two tensioning wheels, and a driving device located below the support bottom plate; the two transmission wheels are connected to the rotating shafts of the two driving synchronous belt pulleys, and the transmission belt is tightly sleeved outside the two transmission wheels and the output shaft of the driving device; the two tensioning wheels are located on both sides of the transmission belt in contact with the output shaft of the driving device to tension the transmission belt.

[0008] In some possible implementation manners, the blanking guiding assembly includes: a blanking guiding seat, a buffer bracket, a bracket telescopic cylinder, a linear guide rail, a guiding seat opening and closing cylinder, a blanking cigarette handling block positioning plate, a blanking guiding seat fixing block, a guiding support plate, an optical fiber sensor, and a limiting block; the blanking guiding seat includes a first blanking guiding plate and a second blanking guiding plate that are opposed to each other. The first blanking guiding plate is provided with a first half guiding groove on a side facing the second blanking guiding plate, and the second blanking guiding plate is provided with a second half guiding groove on a side facing the first blanking guiding plate; the first half guiding groove and the second half guiding groove are opposed to form a cigarette guiding hole; the buffer bracket extends from a position between the blanking guiding seat and the square transmission synchronous belt assembly to the inner side of the blanking guiding seat. A cylinder mounting plate is fixedly arranged on the inner side surface of the blanking guiding. The bracket telescopic cylinder is arranged on the cylinder mounting plate, and an end of the buffer bracket is connected to the bracket telescopic cylinder; and the buffer bracket is connected to the side surface of the blanking guiding seat through the bracket telescopic cylinder; the blanking cigarette handling block positioning plate is located below the buffer bracket. The blanking cigarette handling block positioning plate includes a front positioning plate and a rear positioning plate to position the blanking cigarette handling block through the front positioning plate and the rear positioning plate; the optical fiber sensor is arranged at the bottom of the blanking guiding seat at a position corresponding to the blanking cigarette handling block; the guiding support plate is located below the blanking cigarette handling block positioning plate. The guiding support plate includes a front support plate and a rear support plate; the front support plate and the rear support plate are connected to the support bottom plate through the linear guide rail; the first blanking guiding plate and the second blanking guiding plate are respectively fixed on the front support plate and the rear support plate through a first support column and a second support column; a cylinder body of the guiding seat opening and closing cylinder is fixedly connected to the rear support plate, and a pull head of the guiding seat opening and closing cylinder is fixedly connected to the front support plate; the limiting block is located on the front side of the guiding seat opening and closing cylinder and is fixed on the support bottom plate.

[0009] In some possible implementation manners, the vision detection assembly includes a top surface detection camera, four side surface detection cameras, and a light source that are fixed on the support bottom plate; the top surface detection camera is arranged inside the blanking guiding assembly, and the height of the top surface detection camera is higher than the height of the blanking guiding assembly; among the four side surface detection cameras, two are located inside the square transmission synchronous belt assembly, and two are located outside the square transmission synchronous belt assembly; the photographing sides of the four side surface detection cameras face the blanking cigarette handling block from four opposite directions, and the light source is arranged in the middle area of the four side surface detection cameras.

[0010] In some possible implementation manners, the rejecting and discharging assembly includes a qualified product output assembly and a defective product rejecting assembly; the qualified product output assembly includes: a rotary cylinder, a flap main shaft, a flap, a falling cigarette guiding block backing plate, an L-shaped discharging guide groove plate, a discharging extraction plate, a cylinder, a linear bearing, a linear optical axis, and a bearing seat; the flap main shaft is located outside the falling cigarette carrying block on the output side of the square-loop transmission synchronous belt assembly, and both ends of the flap main shaft are fixed on the support bottom plate through bearing mounting seats; the rotary cylinder is arranged at the end of the flap main shaft; the flap is fixed on the upper side of the flap main shaft and extends to the bottom of the falling cigarette carrying block; a plurality of the L-shaped discharging guide groove plates are arranged in parallel below the flap, and the vertical extension parts of two adjacent L-shaped discharging guide groove plates form a discharging guide groove at each position corresponding to the falling cigarette carrying block, and the discharging extraction plate is arranged below the horizontal extension part of the L-shaped discharging guide groove plate; two linear optical axes horizontally penetrate through the horizontal extension parts of a plurality of the L-shaped discharging guide groove plates arranged in parallel, and linear bearings are respectively installed at both ends of the linear optical axis, and the cylinder is connected between two linear bearings on the same side; the two cylinders are respectively connected to the outer end faces of the L-shaped discharging guide groove plates located on the outer side; the defective product rejecting assembly includes: a rejecting solenoid valve island, an L-shaped rejecting flap, a rotating shaft, a cylinder support, a rejecting cylinder, and a cylinder mounting plate; the vertical extension part of the L-shaped rejecting flap is located in the discharging guide groove and is parallel to the vertical extension part of the L-shaped discharging guide groove plate; the horizontal extension part of the L-shaped rejecting flap extends in a direction opposite to that of the horizontal extension part of the L-shaped discharging guide groove plate; the rotating shaft penetrates through all the L-shaped rejecting flaps and the L-shaped discharging guide groove plates at the corner of the L-shaped rejecting flap and the L-shaped discharging guide groove plate; a cylinder support is arranged outside the L-shaped rejecting flap, the rejecting cylinder is located directly below the cylinder support, and the telescopic shaft of the rejecting cylinder is connected to the cylinder support through a thread, and the cylinder body of the rejecting cylinder is installed on the cylinder mounting plate through a hinge rotating shaft; the rejecting solenoid valve island is fixed below the support bottom plate, and the rejecting solenoid valve island includes multiple groups of solenoid valves corresponding to each rejecting cylinder one by one, and two air pipe joints of each group of solenoid valves are connected to two air pipe joints of the corresponding rejecting cylinder through air pipes.

[0011] Compared with the prior art, the beneficial effects of the present invention are specifically as follows:

[0012] By adopting the cigarette receiving mechanism provided in the embodiment of the present application, the blanking guiding assembly is located below the cigarette shaping length adjusting mechanism. After the cigarette is shaped, the cigarette falls into the square-loop transmission synchronous belt assembly through the blanking guiding assembly, and whether the cigarette is qualified is detected by the visual detection assembly upstream of the output side. After the cigarette moves to the rejecting and discharging assembly on the output side, the defective cigarettes are rejected and the qualified cigarettes are output according to the detection result of the visual detection assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 The top view of a cigarette rod feeding mechanism provided by an embodiment of the present application;

[0015] Figure 2 The front view of a cigarette rod feeding mechanism provided by an embodiment of the present application;

[0016] Figure 3 The bottom view of a cigarette rod feeding mechanism provided by an embodiment of the present application;

[0017] Figure 4 The structural schematic diagram of the blanking guiding component of a cigarette rod feeding mechanism provided by an embodiment of the present application;

[0018] Figure 5 The partial sectional schematic diagram of the blanking guiding component of a cigarette rod feeding mechanism provided by an embodiment of the present application;

[0019] Figure 6 The structural schematic diagram of the visual inspection component of a cigarette rod feeding mechanism provided by an embodiment of the present application;

[0020] Figure 7 The structural schematic diagram of the rejection and discharging component of a cigarette rod feeding mechanism provided by an embodiment of the present application;

[0021] Figure 8 The structural schematic diagram of the rejection and discharging component of a cigarette rod feeding mechanism provided by an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0023] Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application shall have the ordinary meanings understood by those of ordinary skill in the art to which the present invention pertains. The terms "first", "second" and similar terms used in the embodiments of the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "comprising" or "including" mean that the elements or objects appearing before the term cover the elements or objects listed after the term and their equivalents, without excluding other elements or objects. The terms "mounted", "connected" and "coupled" 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 direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two elements. The terms "upper", "lower", "left", "right", "horizontal" and "vertical" are only relative to the orientation of the components in the drawings. These directional terms are relative concepts, which are used for relative description and clarification, and can change accordingly with the change of the orientation of the components placed in the drawings.

[0024] An embodiment of the present application provides a cigarette rod feeding mechanism. As Figure 1 shown, the cigarette rod feeding mechanism includes a supporting bottom plate B, and a square-loop transmission synchronous belt assembly 1, a blanking guiding assembly 2, a vision inspection assembly 3, and a rejection and discharging assembly 4 provided on the supporting bottom plate B.

[0025] The blanking guiding assembly 2 is located directly above one side of the square-loop transmission synchronous belt assembly 1 to guide the cigarette rods into the square-loop transmission synchronous belt assembly 1 through the blanking guiding assembly 2.

[0026] The vision inspection assembly 3 is arranged upstream of the output side of the square-loop transmission synchronous belt assembly 1 for inspecting whether the cigarette rods in the square-loop transmission synchronous belt assembly 1 are qualified.

[0027] The rejection and discharging assembly 4 is arranged downstream of the output side of the square-loop transmission synchronous belt assembly 1 for rejecting the unqualified cigarette rods and discharging the qualified cigarette rods according to the inspection results of the vision inspection assembly 3 on the cigarette rods.

[0028] In summary, by adopting the cigarette rod feeding mechanism provided by the embodiment of the present application, the blanking guiding assembly is located below the cigarette rod shaping length adjusting mechanism. After the cigarette rods are shaped, the cigarette rods fall into the square-loop transmission synchronous belt assembly through the blanking guiding assembly, and the vision inspection assembly upstream of the output side inspects whether the cigarette rods are qualified. After the cigarette rods move to the rejection and discharging assembly on the output side, the unqualified cigarette rods are rejected and the qualified cigarette rods are discharged according to the inspection results of the vision inspection assembly.

[0029] The following further describes the square-loop transmission synchronous belt assembly 1 provided by the embodiment of the present application.

[0030] As shown Figure 2 in FIG. 1, the square - shaped transmission synchronous belt assembly 1 includes: a square - shaped carrying block support plate 11 located above the support base plate B, a cigarette - dropping carrying block 12, two driving synchronous belt pulleys 13, two first - tensioning synchronous idler pulleys 14, an annular synchronous belt 15, and a plurality of second - tensioning synchronous idler pulleys 16.

[0031] As shown Figure 2 in FIG. 2, the square - shaped carrying block support plate 11 is suspended on the support base plate B through a plurality of struts below, and a plurality of cigarette - dropping carrying blocks 12 are evenly and dispersedly arranged on the square - shaped carrying block support plate 11. One first - tensioning synchronous idler pulley 14 is respectively arranged at a set of opposite corners inside the square - shaped carrying block support plate 11, and one driving synchronous belt pulley 13 is respectively arranged at the other set of opposite corners.

[0032] The annular synchronous belt 15 is tightly sleeved outside the two driving synchronous belt pulleys 14 and the two first - tensioning synchronous idler pulleys 14, and the outer side of the annular synchronous belt 15 does not contact the inner side of the square - shaped carrying block support plate 11. A plurality of second - tensioning synchronous idler pulleys 16 (not limited to 4 as shown in Figure 2 FIG. 3) are arranged inside the annular synchronous belt 15 at positions corresponding to the rejection and discharging assembly 4.

[0033] In addition, as shown Figure 3 in FIG. 4, the square - shaped transmission synchronous belt assembly 1 further includes a transmission belt 17 located below the support base plate B, two transmission pulleys 18, two tensioning pulleys 19, and a driving device 110.

[0034] The two transmission pulleys 18 are respectively connected to the rotating shafts of the two driving synchronous belt pulleys 13 located above the support base plate B. That is to say, the transmission pulley 18 located below the support base plate B rotates synchronously with the driving synchronous belt pulley 13 located above the support base plate B.

[0035] In addition, the transmission belt 17 is tightly sleeved outside the two transmission pulleys 18 and the output shaft of the driving device 110 (which can be a servo motor, for example); the two tensioning pulleys 19 are located on both sides of the transmission belt 17 in contact with the output shaft of the driving device 110 to tension the transmission belt 17.

[0036] In summary, the square - shaped transmission synchronous belt assembly of the present application drives the transmission pulley to rotate through the driving device, drives the driving synchronous belt pulley located above the support base plate through the transmission pulley, drives the annular synchronous belt to rotate through the driving synchronous belt pulley, and the cigarette - dropping carrying block is installed on the outer surface of the annular synchronous belt and slides on the square - shaped carrying block support plate, so that the cigarette sticks in the cigarette - dropping carrying block move downstream to the visual inspection assembly and the rejection and discharging assembly.

[0037] It should be noted that the working process of the square-loop transmission synchronous belt assembly provided in the embodiments of the present application is divided into 3 beats: in the first beat, it stops at the blanking guiding assembly 2 and waits for the blanking to be completed; in the second beat, it transports the cigarette sticks at a constant speed and passes through the vision inspection assembly 3 for inspection; in the third beat, it stops at the discharging and rejecting assembly 4 and waits for the discharging and rejecting to be completed, and then returns to the first beat to cycle continuously.

[0038] The following further describes the blanking guiding assembly 2 provided in the embodiments of the present application.

[0039] As Figure 4 and Figure 5 ( Figure 4 Schematic cross-sectional view along the AA' position) shows that the blanking guiding assembly 2 includes: a blanking guiding seat 21, a buffer bracket 22, a bracket telescopic cylinder 23, a linear guide rail 24, a guide seat opening and closing cylinder 25, a blanking and transporting block positioning plate 26, a blanking guiding seat fixing block 27, a guide support plate 28, an optical fiber sensor 29, and a limit block 210.

[0040] As Figure 4 and Figure 5 shown, the blanking guiding seat 21 includes a first blanking guiding plate (which can also be said to be the front blanking guiding plate) 211 and a second blanking guiding plate 212 (which can also be said to be the rear blanking guiding plate) that are joined together. Among them, the first blanking guiding plate 211 is provided with a first half guiding groove on the side facing the second blanking guiding plate 212, and the second blanking guiding plate 212 is provided with a second half guiding groove on the side facing the first blanking guiding plate 211; the first half guiding groove and the second half guiding groove are joined together to form a cigarette stick guiding hole.

[0041] In some possible implementation manners, the cigarette stick guiding hole of the blanking guiding seat 21 can be set as a conical surface to guide the cigarette sticks falling from the previous process into the blanking and transporting block 12 of the square-loop transmission synchronous belt assembly 1.

[0042] The buffer bracket 22 extends from the position between the blanking guiding seat 21 and the square-loop transmission synchronous belt assembly 1 to the inside of the blanking guiding seat 21. An air cylinder mounting plate M is fixedly arranged on the inner side surface of the blanking guiding seat 21. The bracket telescopic cylinder 23 is arranged on the air cylinder mounting plate M, and the end of the buffer bracket 22 is connected to the bracket telescopic cylinder 23.

[0043] The buffer bracket 22 can be a sheet metal part, and a soft buffer pad is attached to the surface to absorb the kinetic energy of the falling cigarette sticks and prevent the cigarette sticks from shrinking at the head. The bracket telescopic cylinder 23 can stretch the buffer bracket 22 back and forth to release the falling cigarette sticks.

[0044] As Figure 4 shown, the optical fiber sensor 29 is arranged at the bottom of the blanking guiding seat 21, corresponding to the position of the blanking and transporting block 12, to judge whether there is a cigarette stick in the cigarette stick guiding hole of the blanking guiding seat 21.

[0045] As shown in Figure 5, the blanking transfer block positioning plate 26 is located below the buffer bracket 22. The blanking transfer block positioning plate 26 includes a front positioning plate 261 and a rear positioning plate 262 to position the blanking transfer block 12 through the front positioning plate 261 and the rear positioning plate 262.

[0046] The blanking transfer block positioning plate 26 can accurately position the blanking transfer block 12 in the figure-eight transmission synchronous belt assembly 1 to ensure the smooth falling of the cigarette sticks.

[0047] As Figure 4 and Figure 5 shown, the guiding support plate 28 is located below the blanking transfer block positioning plate 26. The guiding support plate 28 includes a front support plate 281 and a rear support plate 282; the front support plate 281 and the rear support plate 282 are connected to the support bottom plate B through linear guide rails 24.

[0048] In addition, as Figure 5 shown, the first blanking guide plate 211 and the second blanking guide plate 212 are respectively fixed on the front support plate 281 and the rear support plate 282 through the first support column T1, the second support column T2 and the blanking guide seat fixing block 27.

[0049] The cylinder block 251 of the guide seat opening and closing cylinder 25 is fixedly connected to the rear support plate 282, and the pull head 252 of the guide seat opening and closing cylinder 25 is fixedly connected to the front support plate 281; thus, through the reverse driving of the guide seat opening and closing cylinder 25 on the front support plate 281 and the rear support plate 282, the opening and closing of the first blanking guide plate 211 and the second blanking guide plate 212 are driven.

[0050] After all the cigarette sticks fall into the blanking transfer block 12 in the figure-eight transmission synchronous belt assembly 1, the guide seat opening and closing cylinder 25 opens the first blanking guide plate 211 and the second blanking guide plate 212 so that the cigarette sticks can be output.

[0051] In addition, as Figure 5 shown, limit blocks fixed on the support bottom plate B are provided on the front side, rear side and middle part of the guide seat opening and closing cylinder 25 to limit the moving displacement of the pull head 252 of the guide seat opening and closing cylinder 25 driving the front support plate 281, and ensure that both the opening and closing states of the cylinder are in the required positions.

[0052] In summary, the working process of the blanking guide assembly is generally as follows: the blanking guide seat closes, the cigarette sticks fall from the guide holes of the blowing guide seat of the shaping length adjustment assembly into the guide holes of the blanking guide seat of the blanking guide assembly, the buffer bracket extends to absorb the kinetic energy of the falling cigarette sticks, the buffer bracket retracts, the cigarette sticks fall into the blanking transfer block of the figure-eight transmission synchronous belt assembly, the blanking guide seat opens, and the cigarette sticks are output.

[0053] The following further describes the vision detection component 3 provided in the embodiments of the present application.

[0054] As Figure 6 shown, the vision detection component 3 includes: a top surface detection camera 31 fixed on the support base plate B, four side surface detection cameras 32, and a light source 33.

[0055] The top surface detection camera 31 is arranged inside the blanking guiding component 2, and the height of the top surface detection camera 31 is higher than that of the blanking guiding component 2.

[0056] Among the four side surface detection cameras 32, two are located inside the rectangular transmission synchronous belt component 1, and two are located outside the rectangular transmission synchronous belt component 1; and the photographing sides of the four side surface detection cameras 32 face the cigarette dropping and handling block 12 from four opposite directions; the light source 33 is arranged in the middle area of the four side surface detection cameras 32.

[0057] When the cigarette is being transported by the rectangular transmission synchronous belt component 1, the vision detection component 3 uses one top surface detection camera 31 and four side surface detection cameras 32 to perform high-speed continuous shooting on the four side surfaces and the top end surface of each cigarette to detect the forming quality of the cigarette, and transmits the position information of the non-conforming products to the rejection and discharging component 4.

[0058] The following further describes the rejection and discharging component 4 provided in the embodiments of the present application.

[0059] The rejection and discharging component includes a qualified product output component and a non-conforming product rejection component.

[0060] As Figure 7 shown, the qualified product output component includes: a rotary cylinder 41, a flap main shaft 42, a flap 43, a cigarette dropping guiding block backing plate 44, an L-shaped discharging guide groove plate 45, a discharging extraction plate 46, a cylinder 47, a linear bearing 48, a linear optical axis 49, a bearing seat 410;

[0061] The flap main shaft 42 is located outside the cigarette dropping and handling block 12 on the output side of the rectangular transmission synchronous belt component 1, and both ends of the flap main shaft 42 are fixed on the support base plate B through bearing mounting seats 410. The rotary cylinder 41 is arranged at the end of the flap main shaft 42.

[0062] As Figure 8 shown, the flap 43 is fixed on the upper side of the flap main shaft 42, and the flap 43 extends to the bottom of the cigarette dropping and handling block 12; a plurality of L-shaped discharging guide groove plates 45 are arranged in parallel below the flap 43, and the vertical extension parts of two adjacent L-shaped discharging guide groove plates 45 form a discharging guide groove at each position corresponding to the cigarette dropping and handling block, and the discharging extraction plate 46 is arranged below the horizontal extension part of the L-shaped discharging guide groove plate 45.

[0063] Four linear optical axes 1.749 are respectively connected to the lateral extension parts of the leftmost and rightmost L-shaped discharge guide groove plates 1.745, and linear bearings 48 are respectively installed at both ends of the linear optical axis 49. The cylinder 47 is connected between two linear bearings 48 on the same side, and the two cylinders 47 are connected to the outer end faces of the outer L-shaped discharge guide groove plates 45.

[0064] As Figure 8 shown, the defective product rejection assembly includes: a rejection solenoid valve island 411, an L-shaped rejection flap 412, a rotating shaft 413, a cylinder support 414, a rejection cylinder 415, and a cylinder mounting plate 416.

[0065] Refer to Figure 7 and Figure 8 , the vertical extension part of the L-shaped rejection flap 412 is located in the discharge guide groove, and the vertical extension part of the L-shaped rejection flap 412 is parallel to the vertical extension part of the L-shaped discharge guide groove plate 45; the lateral extension direction of the lateral extension part of the L-shaped rejection flap 412 is opposite to that of the lateral extension part of the L-shaped discharge guide groove plate 45.

[0066] The rotating shaft penetrates through all the L-shaped rejection flap 412 and the L-shaped discharge guide groove plate 45 at the corner of the L-shaped rejection flap 412 and the L-shaped discharge guide groove plate 45; a cylinder support 414 is arranged outside the vertical extension part of the L-shaped rejection flap 412. The rejection cylinder 415 is located directly below the cylinder support 414, and the telescopic shaft of the rejection cylinder 415 is connected to the cylinder support 414 by a thread. The cylinder body of the rejection cylinder 415 is installed on the cylinder mounting plate 416 through a hinge rotating shaft.

[0067] The rejection solenoid valve island 411 is fixed below the support base plate B. For example, the rejection solenoid valve island 411 can be fixed below the support base plate B by screws, but it is not limited thereto; the rejection valve island 411 includes multiple groups of solenoid valves (for example, 30 groups) corresponding to each rejection cylinder 415 one by one, and the two air pipe joints of each group of solenoid valves are connected to the two air pipe joints of the corresponding rejection cylinder 415 through air pipes.

[0068] Specifically, when the cigarette is conveyed by the figure-eight transmission synchronous belt assembly 1 and passes through the detection of the vision detection assembly 3 and reaches the rejection and discharging assembly 4, the control system PLC will open the solenoid valve corresponding to the unqualified cigarette channel according to the detection result of the vision detection assembly 3, thereby controlling the corresponding rejection cylinder 415 to drive the L-shaped rejection flap to rotate counterclockwise. At the same time, the control system PLC will also cut off and close the solenoid valve corresponding to the qualified cigarette channel according to the detection result of the vision detection assembly 3, thereby controlling the corresponding rejection cylinder 415 to retract or maintain the retracted state (the rejection cylinder in the previous process may be in the extended or retracted state), driving the L-shaped rejection flap 412 to rotate clockwise or maintain the existing state.

[0069] It should be noted that before the cigarette is discharged, the rejection solenoid valve island 411 and the L-shaped rejection flap 412 enter the preparation state. At this time, the rotary cylinder 41 in the qualified product output assembly rotates, driving the flap 43 on the rotary main shaft 42 to flip from horizontal to vertical. Under the action of gravity and guided by the L-shaped discharge guide groove plate 45, the cigarette passes through the unqualified rejection assembly, thereby automatically completing the rejection of unqualified products and conveying them to the unqualified product output belt, and outputting qualified products and conveying them to the cigarette conveying and loading platform.

[0070] In this embodiment, for the vision detection part, the judgment criteria for whether the special-shaped cigarette is qualified are as follows: ① The difference between the longest side and the shortest side of the rectangular end face of the special-shaped cigarette is less than 1 mm; ② The deviation value of any angle of the rectangle is within ±10°. Products that meet both of the above conditions will be judged as qualified products by the vision detection system.

[0071] The vision detection system is a prior art, and relevant parameters can be set as needed.

[0072] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, and all should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A cigarette tipping mechanism, characterized in that, It includes a supporting bottom plate, a rectangular transmission synchronous belt assembly, a blanking guiding assembly, a vision inspection assembly, and a rejection and discharging assembly arranged on the supporting bottom plate; The blanking guiding assembly is located directly above one side of the rectangular transmission synchronous belt assembly to guide cigarette sticks into the rectangular transmission synchronous belt assembly through the blanking guiding assembly; The vision inspection assembly is arranged upstream of the output side of the rectangular transmission synchronous belt assembly to detect whether the cigarette sticks in the rectangular transmission synchronous belt assembly are qualified; The rejection and discharging assembly is arranged downstream of the output side of the rectangular transmission synchronous belt assembly to reject unqualified cigarette sticks and output qualified cigarette sticks according to the detection result of the vision inspection assembly on the cigarette sticks; The rectangular transmission synchronous belt assembly includes: a rectangular handling block support plate located above the supporting bottom plate, blanking handling blocks, two first tensioning synchronous idler pulleys, two driving synchronous belt pulleys, an annular synchronous belt, and multiple second tensioning synchronous idler pulleys; The rectangular handling block support plate is suspended on the supporting bottom plate through multiple columns, and multiple blanking handling blocks are evenly and dispersedly arranged on the rectangular handling block support plate; One of a pair of diagonals on the inner side of the rectangular handling block support plate is respectively provided with one of the first tensioning synchronous idler pulleys, and the other pair of diagonals is respectively provided with one of the driving synchronous belt pulleys; The annular synchronous belt is tightly sleeved outside the two driving synchronous belt pulleys and the two first tensioning synchronous idler pulleys, and the outer side of the annular synchronous belt does not contact the inner side of the rectangular handling block support plate; Multiple second tensioning synchronous idler pulleys are arranged inside the annular synchronous belt at a position corresponding to the rejection and discharging assembly; The rectangular transmission synchronous belt assembly further includes a transmission belt, two transmission wheels, two tensioning wheels, and a driving device located below the supporting bottom plate; The two transmission wheels are connected to the rotating shafts of the two driving synchronous belt pulleys, and the transmission belt is tightly sleeved outside the two transmission wheels and the output shaft of the driving device; the two tensioning wheels are located on both sides of the transmission belt in contact with the output shaft of the driving device to tension the transmission belt; The blanking guiding assembly includes: a blanking guiding seat, a buffer bracket, a bracket telescopic cylinder, a linear guide rail, a guiding seat opening and closing cylinder, a blanking handling block positioning plate, a blanking guiding seat fixing block, a guiding support plate, an optical fiber sensor, and a limiting block; The blanking guiding seat includes a first blanking guiding plate and a second blanking guiding plate that are joined together. The first blanking guiding plate is provided with a first semi-guiding groove on the side facing the second blanking guiding plate, and the second blanking guiding plate is provided with a second semi-guiding groove on the side facing the first blanking guiding plate; the first semi-guiding groove and the second semi-guiding groove are joined together to form a cigarette stick guiding hole; The buffer bracket extends from the position between the blanking guiding seat and the rectangular transmission synchronous belt assembly to the inside of the blanking guiding seat. A cylinder mounting plate is fixedly arranged on the inner side surface of the blanking guiding seat. The bracket telescopic cylinder is arranged on the cylinder mounting plate, and the end of the buffer bracket is connected to the bracket telescopic cylinder; And the buffer bracket is connected to the side of the blanking guide seat through the bracket telescopic cylinder; The tobacco dropping handling block positioning plate is located below the buffer bracket. The tobacco dropping handling block positioning plate includes a front positioning plate and a rear positioning plate to position the tobacco dropping handling block through the front positioning plate and the rear positioning plate; The bottom of the blanking guide seat is provided with the fiber optic sensor at the position corresponding to the tobacco dropping handling block; The guiding support plate is located below the tobacco dropping handling block positioning plate. The guiding support plate includes a front support plate and a rear support plate; the front support plate and the rear support plate are connected to the support bottom plate through the linear guide rail; The first blanking guide plate and the second blanking guide plate are respectively fixed on the front support plate and the rear support plate through the first support column and the second support column; The cylinder body of the guide seat opening and closing cylinder is fixedly connected to the rear support plate, and the pull head of the guide seat opening and closing cylinder is fixedly connected to the front support plate; The limiting block is located on the front side of the guide seat opening and closing cylinder and is fixed on the support bottom plate; The vision detection component includes a top surface detection camera, four side detection cameras, and a light source fixed on the support bottom plate; The top surface detection camera is arranged inside the blanking guide component, and the height of the top surface detection camera is higher than the height of the blanking guide component; Among the four side detection cameras, two are located inside the square transmission synchronous belt component, and two are located outside the square transmission synchronous belt component; The photographing sides of the four side detection cameras face the tobacco dropping handling block from four opposite directions, and the light source is arranged in the middle area of the four side detection cameras.

2. The cigarette rod feeding mechanism according to claim 1, wherein The rejecting and discharging component includes a qualified product output component and an unqualified product rejecting component; The qualified product output component includes: a rotary cylinder, a flap main shaft, a flap, a tobacco dropping guide block backing plate, an L-shaped discharging guide groove plate, a discharging extraction plate, a cylinder, a linear bearing, a linear optical axis, and a bearing seat; The flap main shaft is located outside the tobacco dropping handling block on the output side of the square transmission synchronous belt component, and both ends of the flap main shaft are fixed on the support bottom plate through bearing mounting seats; The rotary cylinder is arranged at the end of the flap main shaft; The flap is fixed on the upper side of the flap main shaft, and the flap extends to the bottom of the tobacco dropping handling block; A plurality of the L-shaped discharging guide groove plates are arranged in parallel below the flap, and the vertical extension parts of adjacent two L-shaped discharging guide groove plates form a discharging guide groove at the position corresponding to each tobacco dropping handling block. The discharging extraction plate is arranged below the horizontal extension part of the L-shaped discharging guide groove plate; Two linear optical axes horizontally penetrate through the horizontal extension parts of a plurality of the L-shaped discharging guide groove plates arranged in parallel, and linear bearings are respectively installed at both ends of the linear optical axes. The cylinder is connected between the two linear bearings on the same side; the two cylinders are respectively connected to the outer end faces of the L-shaped discharging guide groove plates located on the outside; The unqualified product rejecting component includes: a rejecting solenoid valve island, an L-shaped rejecting flap, a rotating shaft, a cylinder support, a rejecting cylinder, and a cylinder mounting plate; The vertical extension of the L-shaped rejection flap is located in the discharge guide groove and is parallel to the vertical extension of the L-shaped discharge guide groove plate; the horizontal extension of the L-shaped rejection flap extends in the opposite direction to the horizontal extension of the L-shaped discharge guide groove plate. The rotating shaft penetrates through all of the L-shaped rejection flaps and the L-shaped discharge guide groove plates at the corner of the L-shaped rejection flap and the L-shaped discharge guide groove plate. A cylinder support is arranged on the outer side of the L-shaped rejection flap. The rejection cylinder is located directly below the cylinder support, and the telescopic shaft of the rejection cylinder is connected to the cylinder support by a thread. The cylinder body of the rejection cylinder is installed on the cylinder mounting plate through a hinge rotating shaft. The rejection solenoid valve island is fixed below the support bottom plate, and the rejection solenoid valve island includes multiple groups of solenoid valves corresponding to each rejection cylinder one by one. Two air pipe joints of each group of solenoid valves are connected to two air pipe joints of the corresponding rejection cylinder through air pipes.

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