A cigarette conveying mechanism for a visual inspection device for cigarette quality defects

Abstract

This utility model discloses a cigarette conveying mechanism for a visual inspection device for cigarette quality defects, comprising: a mounting frame, a conveyor belt module, multiple sets of cigarette stops, a moving part, multiple push blocks, and a first motor. The first motor drives the moving part to move forward or backward, causing all material troughs to enter the positions of adjacent material troughs according to the direction of movement. Based on the two inspection results (pass / fail) of the cigarettes, corresponding to the two directions of forward or reverse movement of the moving part, the material trough at the receiving position enters either the first or second discharging position. When the material trough at the receiving position enters the first discharging position, the material trough at the original second discharging position enters the receiving position; conversely, when the material trough at the receiving position enters the second discharging position, the material trough at the original first discharging position enters the receiving position. This completes the separation and discharging of cigarettes without requiring the moving part to reset; the next cigarette can fall under the rolling plate, improving inspection efficiency.

Description

Technical Field

[0001] This utility model relates to a visual inspection device for cigarette quality defects, and particularly to a cigarette conveying mechanism for such a device. Background Technology

[0002] Please refer to Figure 1 , Figure 2 And the applicant's previously filed utility model application (application number: CN202422036530.3), which relates to a visual inspection device for cigarette quality defects. The visual inspection device for cigarette quality defects uses a rotating wheel shaft to feed cigarettes one by one from the feed hopper to a cigarette conveying mechanism. The cigarette conveying mechanism includes: an inclined rolling plate, a conveyor belt, multiple sets of stops fixed to the conveyor belt and extending through the rolling plate, an end stop on the underside of the rolling plate, a rack above the end stop, two push blocks fixed to the rack, and a motor driving the rack to move.

[0003] Cigarettes fed from the feed hopper are stopped by a set of blocks on the rolling plate. As the conveyor belt moves, the blocks move downwards towards the bottom of the rolling plate, with the cigarettes remaining against one block, generally rolling down the rolling plate. During this downward movement, the cigarettes undergo visual inspection. After the blocks reach the end of the conveyor belt, they gradually sink below the rolling plate, and the cigarettes, no longer obstructed, fall to the bottom and are stopped by the end block. Two pushers are located on either side of the end block; cigarettes stopped by the end block are positioned between the two pushers. Based on the cigarette inspection results, motor three, through a rack and pinion pair, moves the rack along the track to either the first or second side. The two pushers then move the cigarettes to the same side, causing them to fall from the inclined plate on that side into the good or bad cigarette bin, thus separating and discharging the cigarettes.

[0004] The cigarette conveying mechanism of the visual inspection equipment for cigarette quality defects still has the following problems: The method of separating and releasing cigarettes blocked by the end stop by translating a rack and two pushers requires waiting for the rack to reset so that the two pushers return to the sides of the end stop before the next cigarette can fall under the rolling plate and be blocked by the end stop. This limits the cycle time and affects the improvement of inspection efficiency. Utility Model Content

[0005] This application provides a cigarette conveying mechanism for a visual inspection device for cigarette quality defects, which can solve the problems mentioned in the background art.

[0006] This application provides a cigarette conveying mechanism for a visual inspection device for cigarette quality defects, comprising:

[0007] The mounting bracket has a first inclined plate and a second inclined plate;

[0008] The conveyor belt module is mounted on the mounting frame. The conveyor belt body is inclined in the transverse direction. It has a rolling plate body that is inclined in the same way as the conveyor belt body, and two baffles on the longitudinal sides of the rolling plate body.

[0009] Multiple sets of cigarette holders are fixed along the conveyor belt. Each set of cigarette holders consists of two cigarette holders, which pass through two slots on the rolling plate.

[0010] The moving part, connected to the mounting bracket, is driven by a rotary input;

[0011] Multiple push blocks are fixed to the moving part, and a material trough is formed between two adjacent push blocks. Each material trough can pass through the corresponding position of all material troughs through the movement of the moving part.

[0012] Wherein: the trough connected to the lower side of the rolling plate is the receiving position; the trough adjacent to one side of the receiving position is the first discharging position, connected to the upper side of the first inclined plate; the trough adjacent to the other side of the receiving position is the second discharging position, connected to the upper side of the second inclined plate;

[0013] The first motor is used to drive the moving part to move forward or backward, so that all the material troughs enter the position of the adjacent material troughs in the direction of movement.

[0014] In some embodiments, the moving part is a synchronous belt; a set of synchronous pulleys that cooperate with the synchronous belt are rotatably connected to the mounting bracket; a first motor is used to drive one of the synchronous pulleys to rotate; and multiple push blocks are fixed along the synchronous belt.

[0015] In some embodiments, the belt body on the synchronous belt is inclined in the lateral direction, and the inclination direction is the same as that of the rolling plate body; the inclination direction of the first inclined plate and the second inclined plate is also the same as that of the rolling plate body.

[0016] In some embodiments, the belt body of the synchronous belt is flush in the lateral direction; the mounting frame is provided with air nozzles corresponding to the first feeding position and the second feeding position.

[0017] In some embodiments, the first and second inclined plates are tilted in the opposite direction to the rolling plate.

[0018] In some embodiments, the moving part is a cylindrical block; the cylindrical block is rotatably connected to the mounting frame about a longitudinal axis; a plurality of push blocks are fixed to the cylindrical block in a uniform circular array; and a first motor is used to drive the cylindrical block to rotate.

[0019] In some embodiments, the number of push blocks is five.

[0020] In summary, this application discloses a cigarette conveying mechanism for a visual inspection device for cigarette quality defects, comprising: a mounting frame, a conveyor belt module, multiple sets of cigarette stops, a moving part, multiple push blocks, and a first motor. The first motor drives the moving part to move forward or backward, causing all material troughs to enter the positions of adjacent material troughs according to the direction of movement. Based on the two inspection results (pass / fail) of the cigarettes, corresponding to the two directions of forward or reverse movement of the moving part, the material trough at the receiving position enters either the first or second discharging position. When the material trough at the receiving position enters the first discharging position, the material trough at the original second discharging position enters the receiving position; conversely, when the material trough at the receiving position enters the second discharging position, the material trough at the original first discharging position enters the receiving position. This completes the separation and discharging of cigarettes without requiring the moving part to reset, allowing the next cigarette to fall under the rolling plate, thus improving inspection efficiency. Attached Figure Description

[0021] To better illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0022] Figure 1 A schematic diagram of a visual inspection device for cigarette quality defects;

[0023] Figure 2 A schematic diagram illustrating the feeding of cigarettes by the translation of the rack and pusher blocks;

[0024] Figure 3 This is a schematic diagram of the synchronous belt as the moving part in this application;

[0025] Figure 4 This is a top view of the application with the synchronous belt as the moving part;

[0026] Figure 5 This is another schematic diagram of the synchronous belt as the moving part in this application;

[0027] Figure 6 This is a schematic diagram of the cylindrical block as the moving part in this application.

[0028] In the picture,

[0029] 1. Mounting bracket; 1a. First inclined plate; 1b. Second inclined plate; 1c. End stop; 1d. Air nozzle; 1e. Extension plate;

[0030] 2. Conveyor belt module; 21. Mounting part; 22. Pulley; 23. Conveyor belt; 24. Second motor; 25. Rolling plate; 25a. Groove; 26. Baffle;

[0031] 3. Cigarette holder block;

[0032] 4. Movement section; 41. Receiving position; 42. First feeding position; 43. Second feeding position;

[0033] 5. Push block; 5a. Material trough;

[0034] 6. First motor. Specific Implementation

[0035] The following description is provided in conjunction with the accompanying drawings, which are for illustrative purposes only and not strictly to scale. Unless otherwise defined, the technical or scientific terms used in this disclosure should be understood in their ordinary sense by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described object changes. Unless otherwise specified, the embodiments in this application can be combined with each other.

[0036] Please see Figure 3 and Figure 4 A cigarette conveying mechanism for a visual inspection device for cigarette quality defects includes: a mounting frame 1, a conveyor belt module 2, multiple sets of cigarette stops 3, a moving part 4, multiple push blocks 5, and a first motor 6.

[0037] The mounting frame 1 has a first inclined plate 1a and a second inclined plate 1b. The first inclined plate 1a and the second inclined plate 1b are used to distinguish and release the tested cigarettes. Qualified cigarettes can fall along the first inclined plate 1a, and unqualified cigarettes can fall along the second inclined plate 1b.

[0038] Please see Figure 3 , Figure 4 and Figure 5 The conveyor belt module 2 is mounted on the mounting frame 1. More specifically, the conveyor belt module 2 may include: a mounting part 21 fixedly connected to the mounting frame 1; two pulleys 22 rotatably connected to the mounting part 21; a conveyor belt 23 tensioned between the two pulleys 22; a second motor 24 driving one of the pulleys 22 to rotate; a rolling plate 25 fixedly mounted on the mounting part 21; and two baffles 26 fixedly mounted on the mounting part 21. Of course, a chain module can also be used to replace the conveyor belt module 2.

[0039] The conveyor belt 23 is inclined laterally, meaning that one side of the conveyor belt 23 is lower than the other. The rolling plate 25 is also inclined laterally, with the same direction and angle of inclination as the conveyor belt 23. The rolling plate 25 has two parallel strip-shaped grooves 25a. Two baffles 26 are located on either side of the rolling plate 25 in the longitudinal direction. After the cigarette falls onto the rolling baffles 26, both ends of the cigarette are attached to the two baffles 26.

[0040] Multiple sets of cigarette stop blocks 3 are fixed along the conveyor belt 23, meaning the cigarette stop blocks 3 and the conveyor belt 23 move together. More specifically, the inner wall of the conveyor belt 23 can have grooves, and through holes penetrating the inner and outer walls of the conveyor belt 23 can be formed in the grooves. Threaded holes are formed on the bottom surface of the cigarette stop blocks 3, and screws are used to fix the cigarette stop blocks 3 and the conveyor belt 23 together. The screw nuts are inside the grooves and do not interfere with the pulley 22. Each set of cigarette stop blocks 3 consists of two blocks, which protrude from the two strip grooves 25a of the rolling plate 25.

[0041] The motion unit 4 is connected to the mounting bracket 1 and is driven by a rotary input.

[0042] Multiple push blocks 5 are fixed to the moving part 4, and a material trough 5a is formed between two adjacent push blocks 5. That is, the material trough 5a is used to feed the cigarette. The two push blocks 5 are located on both sides of the cigarette. Whether the moving part 4 moves in the forward or reverse direction, the corresponding push block 5 can drive the cigarette to move.

[0043] Each feed trough 5a can pass through the corresponding position of all feed troughs 5a through the movement of the moving part 4.

[0044] The material trough 5a connected to the lower side of the rolling plate is the receiving position 41. The material trough 5a adjacent to the receiving position 41 is the first discharging position 42, and this material trough 5a is also connected to the upper side of the first inclined plate 1a. The material trough 5a adjacent to the other side of the receiving position 41 is the second discharging position 43, and this material trough 5a is also connected to the upper side of the second inclined plate 1b.

[0045] In some embodiments, the moving part 4 is a synchronous belt, that is, the synchronous belt is longitudinal, and the first inclined plate 1a and the second inclined plate 1b are respectively located on both sides of the longitudinal direction. The belt body of the synchronous belt is flush in the longitudinal direction and is used to receive cigarettes. The equipment frame extends beyond the belt body of the synchronous belt at the first feeding position 42 to form an end stop 1c.

[0046] Correspondingly, the mounting bracket 1 is rotatably connected to a set of synchronous pulleys that cooperate with the synchronous belt. The input to the motion unit 4 is the first motor 6, which drives one of the synchronous pulleys to rotate. Multiple push blocks 5 are fixed along the synchronous belt. The synchronous belt is relatively narrow, and the push blocks 5 can be integrally set on the synchronous belt, or the fixing method between the cigarette stop block 3 and the conveyor belt 23 described above can be used.

[0047] The spacing between two adjacent push blocks 5 is the same. The first motor 6 can be a servo motor or a stepper motor, which works with a sensor and a PLC to form feedback, so that the first motor 6 rotates a certain number of steps each time, and the belt body moves by the same spacing value synchronously.

[0048] As the cigarette rolls down the rolling plate, it undergoes visual inspection. After the cigarette stop block 3 moves to the end of the conveyor belt 23, it gradually sinks below the rolling plate. The cigarette, no longer obstructed by the stop block 3, falls to the underside of the rolling plate and is stopped by the end stop block 1c. Based on the inspection result, the first motor 6 drives the synchronous belt to move in the corresponding direction, causing the cigarette to fall from either the first inclined plate 1a or the second inclined plate 1b.

[0049] Please see Figure 3 and Figure 4 In some embodiments, the belt body on the synchronous belt is inclined in the lateral direction, and the inclination direction is the same as that of the rolling plate 25, and the inclination angle is also the same as that of the rolling plate 25. The first inclined plate 1a and the second inclined plate 1b are also inclined in the same direction as the rolling plate 25, and the inclination angle is also the same as that of the rolling plate 25.

[0050] Please see Figure 5 In some embodiments, the upper belt of the synchronous belt is flush in the transverse direction, and combined with the above-mentioned upper belt being flush in the longitudinal direction, that is, the upper belt of the synchronous belt is horizontal. Air nozzles 1d are provided on the mounting frame 1 corresponding to both the first feeding position 42 and the second feeding position 43.

[0051] The synchronous belt is inclined laterally. When the cigarette is on the synchronous belt, gravity has a component along the synchronous belt. The first motor 6 drives the synchronous belt to move in the corresponding direction. The part of the cigarette blocked by the end stop 1c gradually decreases. If the friction between the synchronous belt and the cigarette is insufficient, the trough 5a of the receiving position 41 has not yet entered the first discharge position 42 or the second discharge position 43. The end of the cigarette away from the end stop 1c may tilt under the action of gravity, which will affect the cigarette falling from the first inclined plate 1a or the second inclined plate 1b.

[0052] The belt body of the synchronous belt is flush in the transverse direction, making the cigarette relatively stable when it is on the synchronous belt body. Correspondingly, with the addition of the air nozzle 1d, the first motor 6 drives the synchronous belt to move in the corresponding direction. After the material trough 5a of the receiving position 41 enters the first discharge position 42 or the second discharge position 43, the air nozzle 1d sprays air to make the cigarette fall into the first inclined plate 1a or the second inclined plate 1b.

[0053] Please see Figure 5The belt body of the synchronous belt is flush in the transverse direction. The inclination direction of the first inclined plate 1a and the second inclined plate 1b can be the same as or opposite to that of the rolling plate 25. In some embodiments, preferably, the inclination direction of the first inclined plate 1a and the second inclined plate 1b is opposite to that of the rolling plate 25.

[0054] Please see Figure 6 In some embodiments, the moving part 4 is a cylindrical block. The cylindrical block is rotatably connected to the mounting frame 1 about the longitudinal axis. More specifically, the equipment frame can be fixedly connected to two three-pronged extension plates 1e. The two extension plates 1e can be respectively connected to two baffles 26 at their upper branches. The first inclined plate 1a can be fixedly connected between the lower branches on one side of the two extension plates 1e, and the second inclined plate 1b can be fixedly connected between the lower branches on the other side of the two extension plates 1e. The cylindrical block is rotatably connected at the junction of the two extension plates 1e.

[0055] In addition, compared with the rolling plate 25, the inclination angle of the branch on the extension plate 1e is larger. Accordingly, the rolling plate 25 can be extended, and the extended part is bent and fixedly connected between the two branches on the extension plates 1e.

[0056] Correspondingly, multiple push blocks 5 are fixed to the cylindrical block in a uniform circular array to form a grooved wheel shaft. The first inclined plate 1a and the second inclined plate 1b are located on the lateral sides, respectively. The input to the motion unit 4 can still be the first motor 6, which drives the cylindrical block to rotate.

[0057] The outer wall of the cylindrical block can have an arc groove between the two push blocks 5 to provide a more stable place for the cigarette. For the material trough 5a at the receiving position 41, one push block 5 is used to connect the rolling plate 25 to allow the cigarette to enter, and the other push block 5 is used to block the cigarette (serving the function of the aforementioned end block 1c).

[0058] The angle between any two adjacent push blocks 5 is the same. The first motor 6 can be a servo motor or a stepper motor, which works in conjunction with a sensor and a PLC to provide feedback, so that the first motor 6 rotates a certain number of steps each time, and the cylindrical block rotates by the corresponding angle. Preferably, there are five push blocks 5, and the angle between any two adjacent push blocks 5 is 72 degrees, which makes the size of the material trough 5a more suitable and also facilitates the use of a stepper motor with a common step angle of 1.8 degrees.

[0059] In summary, regardless of whether a synchronous belt or a cylindrical block is used as the moving part 4, the first motor 6 drives the moving part 4 to move in either the forward or reverse direction, causing all material troughs 5a to enter the positions of adjacent material troughs 5a according to the direction of movement. Based on the two detection results of whether the cigarettes pass or fail, corresponding to the two movement directions of the moving part 4 (forward or reverse), the material trough 5a at receiving position 41 enters either the first discharge position 42 or the second discharge position 43. When the material trough 5a at receiving position 41 enters the first discharge position 42, the material trough 5a at the original second discharge position 43 enters the receiving position 41; conversely, when the material trough 5a at receiving position 41 enters the second discharge position 43, the material trough 5a at the original first discharge position 42 enters the receiving position 41. This completes the separation and discharge of cigarettes, and without requiring the moving part 4 to reset, the next cigarette can fall under the rolling plate, improving detection efficiency.

Claims

1. A cigarette conveying mechanism for a visual inspection device for cigarette quality defects, characterized in that, include: The mounting bracket (1) has a first inclined plate (1a) and a second inclined plate (1b); The conveyor belt module (2) is mounted on the mounting frame (1). The belt body of the conveyor belt (23) is inclined in the transverse direction. It has a rolling plate (25) that is inclined in the same way as the belt body of the conveyor belt (23) and two baffles (26) on the longitudinal sides of the rolling plate (25). Multiple sets of cigarette holder blocks (3) are fixed along the conveyor belt (23). Each set of cigarette holder blocks (3) consists of two blocks, which pass through the two strip grooves (25a) of the rolling plate (25). The moving part (4) is connected to the mounting bracket (1) and is driven by a rotary input; Multiple push blocks (5) are fixed to the moving part (4), and a material trough (5a) is formed between two adjacent push blocks (5). Each material trough (5a) can pass through the corresponding position of all material troughs (5a) through the movement of the moving part (4). Wherein: the material trough (5a) connected to the lower side of the rolling plate is the receiving position (41); the material trough (5a) adjacent to one side of the receiving position (41) is the first discharging position (42), connected to the upper side of the first inclined plate (1a); the material trough (5a) adjacent to the other side of the receiving position (41) is the second discharging position (43), connected to the upper side of the second inclined plate (1b); The first motor (6) is used to drive the moving part (4) to move forward or backward, so that all the material troughs (5a) enter the position of the adjacent material trough (5a) in the direction of movement.

2. The cigarette conveying mechanism of the visual inspection device for cigarette quality defects according to claim 1, characterized in that, The moving part (4) is a synchronous belt; the mounting bracket (1) is rotatably connected to a set of synchronous pulleys that cooperate with the synchronous belt; the first motor (6) is used to drive one of the synchronous pulleys to rotate; multiple push blocks (5) are fixed along the synchronous belt.

3. The cigarette conveying mechanism of the visual inspection device for cigarette quality defects according to claim 2, characterized in that, The belt body of the synchronous belt is inclined in the transverse direction, and the inclination direction is the same as that of the rolling plate (25); the inclination direction of the first inclined plate (1a) and the second inclined plate (1b) is also the same as that of the rolling plate (25).

4. The cigarette conveying mechanism of a visual inspection device for cigarette quality defects according to claim 2, characterized in that, The belt body of the synchronous belt is flush in the horizontal direction; the mounting frame (1) is equipped with air nozzles (1d) at the first feeding position (42) and the second feeding position (43).

5. The cigarette conveying mechanism of the visual inspection device for cigarette quality defects according to claim 4, characterized in that, The first inclined plate (1a) and the second inclined plate (1b) are inclined in the opposite direction to the rolling plate (25).

6. The cigarette conveying mechanism of the visual inspection device for cigarette quality defects according to claim 1, characterized in that, The moving part (4) is a cylindrical block; the cylindrical block is rotatably connected to the mounting frame (1) around the longitudinal axis; multiple push blocks (5) are fixed to the cylindrical block in a uniform circular array; the first motor (6) is used to drive the cylindrical block to rotate.

7. The cigarette conveying mechanism of a visual inspection device for cigarette quality defects according to claim 6, characterized in that, The number of push blocks (5) is five.

Images