Automatic detection and selection device for filter rods for cigarettes

Abstract

The present invention is applicable to the technical field of tobacco processing, and in particular, relates to an automatic detection and selection device for filter rods for cigarettes, the device comprising: a base, two sets of drive shafts are rotatably mounted on the base, sprockets are mounted on the drive shafts, the sprockets are connected through a transmission chain, multiple sets of automatic detection mechanisms are fixedly mounted on the transmission chain, the automatic detection mechanisms are used to detect the suction resistance of the filter rods for cigarettes, pulleys are mounted on the drive shafts, the pulleys are connected through a transmission belt, a storage tank is fixedly mounted on the base through a top bracket, a discharge tank is arranged on the storage tank, a feed roller is rotatably arranged in the discharge tank, and multiple material storage tanks are arranged on the outer edge of the feed roller; an image acquisition component, the image acquisition component is used to detect the roundness of the filter rods for cigarettes. The present invention utilizes an automatic detection mechanism to detect the suction resistance of the filter rods for cigarettes, thereby sorting the filter rods for cigarettes according to the suction resistance, realizing automatic detection and classification of the filter rods for cigarettes, and improving the utilization rate of raw materials.

Description

Technical Field

[0001] The invention belongs to the technical field of tobacco processing, and in particular relates to an automatic detection and selection device for filter rods for cigarettes. Background Art

[0002] Cigarette filter rods, also known as cigarette filter tips, are an important part of modern cigarette products. Their main function is to filter out some harmful substances produced during smoking, reduce the harmful ingredients such as tar and nicotine inhaled by smokers, and also affect the taste and feeling of smoking cigarettes. Cigarette filter rods are usually made of cellulose acetate, polypropylene fiber, paper material or a mixture of these materials, among which cellulose acetate filter rods are the most common.

[0003] For cigarette filter rods, the inhalation resistance is an important parameter that needs to be verified. When the inhalation resistance is too large, it will affect the passage of smoke. When the inhalation resistance is too small, the filtering effect on harmful substances is reduced. In the existing production process, the quality of the finished cigarette rods is inspected by visual solutions. At this time, if the cigarette rods are detected to have quality problems and are discarded, it will cause waste of raw materials. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic detection and selection device for cigarette filter rods, aiming to solve the problem that in the existing production process, the quality of finished cigarette rods is detected by visual solutions. If the cigarette rods are detected to have quality problems and are discarded, it will cause waste of raw materials.

[0005] The present invention is implemented as follows: a device for automatically detecting and selecting filter rods for cigarettes, the device comprising:

[0006] A base, two sets of drive shafts are rotatably mounted on the base, sprockets are mounted on the drive shafts, the sprockets on the drive shafts are connected by a transmission chain, multiple sets of automatic detection mechanisms are fixedly mounted on the transmission chain, the automatic detection mechanisms are used to perform suction resistance detection on the filter rod for cigarettes, pulleys are mounted on the drive shafts, the pulleys are connected by a transmission belt, and one set of drive shafts is driven by a power motor fixedly mounted on the base;

[0007] The base is fixedly mounted with a material storage tank through a top bracket, the material storage tank is provided with a material discharge tank, a feed roller is rotatably arranged in the material discharge tank, a plurality of material storage tanks are arranged on the outer edge of the feed roller, and the feed roller is driven by a feed motor fixedly mounted on the material storage tank;

[0008] An image acquisition component is fixedly mounted on the top bracket and is used for detecting the roundness of a cigarette filter rod.

[0009] Preferably, the automatic detection mechanism includes a control seat, which is fixedly mounted on the transmission chain, and the control seat is provided with an installation cavity and an air pressure control cavity, a movable slot is slidably arranged in the installation cavity, a first magnetic ring and a guide sleeve are fixedly mounted at the bottom of the movable slot, a guide column and a first electromagnet are fixedly mounted at the bottom of the installation cavity, the guide column is slidably arranged in the guide sleeve, the first electromagnet and the first magnetic ring are coaxially arranged, a groove is fixedly arranged at the end of the control seat, a piston is slidably arranged in the air pressure control cavity, an opening is arranged on the side of the air pressure control cavity close to the groove, a second electromagnet is fixedly mounted in the opening, the installation cavity and the air pressure control cavity are connected through a control valve, a group of rotating rods are rotatably arranged in the groove, an impeller is fixedly mounted on the end of the rotating rod away from the control valve, an air guide pipe is fixedly mounted on the side of the control seat, one end of the air guide pipe is connected to the control valve, and the other end of the air guide pipe is fixedly connected to a nozzle, and the outflow direction of the nozzle is tangential to the impeller.

[0010] Preferably, a plurality of partitions are provided at the bottom of the base, and the partitions divide the space at the bottom of the base into a plurality of material distribution chambers.

[0011] Preferably, at least two groups of the material distribution chambers are provided, and different material distribution chambers are used to store filter rods for cigarettes with different draw resistances.

[0012] Preferably, when the image acquisition component is acquiring images, the cigarette filter rod is driven to rotate by the automatic detection mechanism.

[0013] Preferably, two groups of powered rails are provided on the base, and two groups of powered conductive posts are fixedly provided on the transmission chain. The powered conductive posts are slidably connected to the powered rails, and the powered conductive posts are electrically connected to each automatic detection mechanism.

[0014] Preferably, a lifting and adjusting assembly is provided at the bottom of the base.

[0015] The present invention provides an automatic detection and selection device for cigarette filter rods. An automatic detection mechanism is provided to detect the inhalation resistance of cigarette filter rods by using the automatic detection mechanism, so that the cigarette filter rods are sorted according to the inhalation resistance, thereby realizing automatic detection and classification of cigarette filter rods and improving the utilization rate of raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a device for automatically detecting and selecting cigarette filter rods from a first perspective provided by an embodiment of the present invention;

[0017] Figure 2 A schematic diagram of the structure of a device for automatically detecting and selecting cigarette filter rods provided by an embodiment of the present invention from a second viewing angle;

[0018] Figure 3 A schematic diagram of the structure from a third perspective of a device for automatically detecting and selecting cigarette filter rods provided by an embodiment of the present invention;

[0019] Figure 4 A schematic diagram of the structure of an automatic detection mechanism provided by an embodiment of the present invention;

[0020] Figure 5 A schematic cross-sectional view of an automatic detection mechanism provided by an embodiment of the present invention;

[0021] Figure 6 for Figure 3 A partial enlarged view of point A in the middle.

[0022] In the attached drawings: 1. base; 2. material storage trough; 3. top bracket; 4. automatic detection mechanism; 5. partition; 6. material distribution chamber; 7. pulley; 8. transmission belt; 9. power motor; 10. control seat; 11. air pressure control chamber; 12. air guide tube; 13. impeller; 14. nozzle; 15. material loading trough; 16. control valve; 17. first electromagnet; 18. first magnetic ring; 19. guide column; 20. guide sleeve; 21. movable card slot; 22. rotating rod; 23. piston; 24. second magnetic ring; 25. second electromagnet; 26. feed roller; 27. material storage trough. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0025] like Figure 1 , Figure 2 and Figure 3 FIG. 1 is a structural diagram of an automatic detection and selection device for cigarette filter rods provided by an embodiment of the present invention, wherein the device comprises:

[0026] A base 1, on which two sets of drive shafts are rotatably mounted, on which sprockets are mounted, the sprockets on the drive shafts are connected by a transmission chain, on which multiple sets of automatic detection mechanisms 4 are fixedly mounted, the automatic detection mechanisms 4 are used to perform suction resistance detection on the filter rod for cigarettes, on which pulleys 7 are mounted, the pulleys 7 are connected by a transmission belt 8, and one set of drive shafts is driven by a power motor 9 fixedly mounted on the base 1;

[0027] The base 1 is fixedly mounted with a storage tank 2 through a top bracket 3, and a discharge tank is arranged on the storage tank 2. A feed roller 26 is rotatably arranged in the discharge tank, and a plurality of material storage tanks 27 are arranged on the outer edge of the feed roller 26. The feed roller 26 is driven by a feed motor fixedly mounted on the storage tank 2.

[0028] An image acquisition component is fixedly mounted on the top bracket 3 and is used for detecting the roundness of the cigarette filter rod.

[0029] In the embodiment of the present invention, when performing the inspection, the filter rod for cigarettes to be inspected is introduced into the storage tank 2, and the power motor 9 and the feeding motor are started synchronously at this time, and the feeding motor drives the feeding roller 26 to rotate. During the rotation of the feeding roller 26, the material in the storage tank 2 will fall into the receiving tank 27 on the feeding roller 26. Since the filter rod for cigarettes in the receiving tank 27 will rotate with the feeding roller 26, after the feeding roller 26 rotates 180 degrees, the filter rod for cigarettes in the receiving tank 27 will fall into the automatic detection mechanism 4, and the rotation linear speed of the receiving tank 27 is proportional to the rotation speed of the automatic detection mechanism 4. The moving line speed is the same, so the filter rods in each group of material troughs 27 will smoothly fall into an automatic detection mechanism 4, and the automatic detection mechanism 4 will perform air permeability detection on the filter rods to determine their suction resistance. The suction resistance is the suction resistance, which can also be understood as the amount of gas passing through per unit time and per unit area. By setting an image acquisition component and using the image acquisition component to capture images of the filter rods, it is determined whether the diameter of the filter rods is uniform, thereby realizing the roundness detection of the filter rods, and automatically classifying and sorting the filter rods according to the suction resistance detection results and the roundness detection results.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, as a preferred embodiment of the present invention, the automatic detection mechanism 4 includes a control seat 10, the control seat 10 is fixedly mounted on the transmission chain, and an installation cavity and an air pressure control cavity 11 are arranged on the control seat 10, an active card slot 21 is slidably arranged in the installation cavity, a first magnetic ring 18 and a guide sleeve 20 are fixedly mounted at the bottom of the active card slot 21, a guide column 19 and a first electromagnet 17 are fixedly arranged at the bottom of the installation cavity, the guide column 19 is slidably arranged in the guide sleeve 20, the first electromagnet 17 is coaxially arranged with the first magnetic ring 18, a groove is fixedly arranged at the end of the control seat 10, and a sliding groove is arranged in the air pressure control cavity 11. A piston 23 is provided with a second magnetic ring 24 fixedly mounted on the piston 23. An opening is provided on one side of the air pressure control chamber 11 close to the groove. A second electromagnet 25 is fixedly mounted in the opening. The mounting chamber is connected to the air pressure control chamber 11 via a control valve 16. A group of rotating rods 22 are rotatably arranged in the groove. An impeller 13 is fixedly mounted on one end of the rotating rods 22 away from the control valve 16. An air guide pipe 12 is fixedly mounted on the side of the control seat 10. One end of the air guide pipe 12 is connected to the control valve 16. The other end of the air guide pipe 12 is fixedly connected to a nozzle 14. The outflow direction of the nozzle 14 is tangential to the impeller 13.

[0031] In this embodiment, when testing, the cigarette filter rod falls into the groove on the control seat 10 away from the control valve 16. At this time, the first electromagnet 17 is energized to adsorb the first magnetic ring 18. At this time, driven by the first magnetic ring 18, the movable card slot 21 moves downward, and the guide column 19 and the guide sleeve 20 play a guiding role. The second electromagnet 25 is energized, and the second magnetic ring 24 is adsorbed by the second electromagnet 25. The second magnetic ring 24 will drive the piston 23 to move quickly to the side of the second electromagnet 25. At this time, the control valve 16 will install the cavity and the air pressure control The air pressure control chamber 11 is connected, and the air pressure control chamber 11 is under negative pressure. External air will enter the air pressure control chamber 11 through the installation chamber, and the cigarette filter rod will be sucked into the installation chamber along with the airflow. At this time, the first electromagnet 17 switches the electrodes to generate an opposite magnetic field, and the first electromagnet 17 repels the first magnetic ring 18, and the first magnetic ring 18 will drive the movable card slot 21 to rise, and the movable card slot 21 will cooperate with the inner cavity of the installation chamber to clamp the cigarette filter rod. Since the outer wall of the movable card slot 21 fits the inner cavity of the installation chamber, the airflow can only pass through the cigarette filter rod, and the air A pressure sensor is provided in the pressure control chamber 11, and the internal air pressure can be monitored in real time through the pressure sensor. When the cigarette filter rod is in a clamped state, the piston 23 is driven to move by changing the magnetic pole of the second electromagnet 25. During the movement, the internal air pressure is detected, thereby constructing an air pressure change curve. The start time and the end time are extracted from the air pressure change curve. The start time is the time when the piston 23 starts to move, and the end time is the time when the air pressure detected by the pressure sensor is the atmospheric pressure. Due to the volume of the inner cavity of the air pressure control chamber 11 is known, then the exhaust speed of the current cigarette filter rod can be calculated according to the volume and the time difference between the end time and the start time, and the size of the suction resistance is determined according to the exhaust speed. The larger the suction resistance, the smaller the exhaust speed, and vice versa, the smaller the suction resistance, the larger the exhaust speed, and the two are inversely proportional. According to the preset suction resistance segmentation interval, the cigarette filter rod is classified, such as a first-level suction resistance filter rod, a second-level suction resistance filter rod, a third-level suction resistance filter rod, and a fourth-level suction resistance filter rod, wherein the suction resistance of the four levels of cigarette filter rods gradually increases, and the fourth-level suction resistance filter rod is a cigarette filter rod that needs to be discarded;When it is necessary to detect the roundness of the cigarette filter rod, the movable card slot 21 is controlled to drop to a certain height. At this time, the piston 23 moves quickly toward the control valve 16, so that the cigarette filter rod is taken out of the installation cavity by the internal gas, and the cigarette filter rod returns to the groove. At this time, the control valve 16 connects the air guide tube 12 with the air pressure control cavity 11, and the piston 23 moves slowly toward the side of the second electromagnet 25. The external gas enters the air pressure control cavity 11 from the nozzle 14. Then the piston 23 moves quickly toward the control valve 16, and the high-pressure gas is ejected from the nozzle 14. The airflow ejected from the nozzle 14 will drive the impeller 13 to rotate. A long notch is provided at the bottom of the groove, and the top of the rotating rod 22 is located in the long notch. When the rotating rod 22 rotates, it will drive the cigarette filter rod to rotate. At this time, the cigarette filter rod can be photographed in all directions through the image acquisition component. By performing image processing, it is determined whether the current cigarette filter rod has a diameter change, thereby obtaining the roundness detection result. ;

[0032] like Figure 1 and Figure 5 As shown, as a preferred embodiment of the present invention, a plurality of partitions 5 are provided at the bottom of the base 1 , and the partitions 5 divide the space at the bottom of the base 1 into a plurality of material distribution chambers 6 .

[0033] like Figure 1 and Figure 5 As shown, as a preferred embodiment of the present invention, at least two groups of the material distribution chambers 6 are provided, and different material distribution chambers 6 are used to store filter rods for cigarettes with different draw resistances.

[0034] In this embodiment, if the roundness test fails, it will be divided into four levels of suction resistance filter rods and discarded. The roundness test can be set before the suction resistance test step or after the suction resistance test step. After completing the two tests, the cigarette filter rod is sucked into the installation cavity again. When the automatic detection mechanism 4 rotates to the bottom, the cigarette filter rod is pushed out into the groove again. At this time, the cigarette filter rod will fall under the action of its own weight and enter different material distribution chambers 6.

[0035] like Figure 1 and Figure 5 As shown, as a preferred embodiment of the present invention, when the acquisition component performs image acquisition, the cigarette filter rod is driven to rotate by the automatic detection mechanism 4.

[0036] like Figure 1 and Figure 5 As shown, as a preferred embodiment of the present invention, two groups of powered rails are arranged on the base 1, and two groups of powered conductive posts are fixedly arranged on the transmission chain. The powered conductive posts are slidably connected to the powered rails, and the powered conductive posts are electrically connected to each automatic detection mechanism 4.

[0037] In this embodiment, the automatic detection mechanism 4 is powered by providing a powered conductive column and a powered conductive rail. The automatic detection mechanism 4 may also be powered by charging.

[0038] As a preferred embodiment of the present invention, a lifting and adjusting assembly is disposed at the bottom of the base 1 .

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic detection and selection device for cigarette filter rods, It is characterized in that The device comprises: A base (1), wherein two sets of drive shafts are rotatably mounted on the base (1), sprockets are mounted on the drive shafts, the sprockets on the drive shafts are connected via a transmission chain, a plurality of sets of automatic detection mechanisms (4) are fixedly mounted on the transmission chain, the automatic detection mechanisms (4) are used to detect the suction resistance of a cigarette filter rod, a pulley (7) is mounted on the drive shaft, the pulley (7) is connected via a transmission belt (8), and a set of drive shafts is driven by a power motor (9) fixedly mounted on the base (1); A material storage trough (2) is fixedly mounted on the base (1) via a top bracket (3); a material discharge trough is arranged on the material storage trough (2); a feed roller (26) is rotatably arranged in the material discharge trough; a plurality of material storage troughs (27) are arranged on the outer edge of the feed roller (26); the feed roller (26) is driven by a feed motor fixedly mounted on the material storage trough (2); An image acquisition component, the image acquisition component is fixedly mounted on the top bracket (3), and the image acquisition component is used to detect the roundness of the cigarette filter rod; The automatic detection mechanism (4) comprises a control seat (10), the control seat (10) is fixedly mounted on the transmission chain, a mounting cavity and an air pressure control cavity (11) are arranged on the control seat (10), a movable slot (21) is slidably arranged in the mounting cavity, a first magnetic ring (18) and a guide sleeve (20) are fixedly mounted at the bottom of the movable slot (21), a guide column (19) and a first electromagnet (17) are fixedly arranged at the bottom of the mounting cavity, the guide column (19) is slidably arranged in the guide sleeve (20), the first electromagnet (17) and the first magnetic ring (18) are coaxially arranged, a groove is fixedly arranged at the end of the control seat (10), a piston (23) is slidably arranged in the air pressure control cavity (11), and the piston A second magnetic ring (24) is fixedly mounted on (23); an opening is provided on one side of the air pressure control chamber (11) close to the groove, a second electromagnet (25) is fixedly mounted in the opening, the mounting chamber is connected to the air pressure control chamber (11) via a control valve (16), a group of rotating rods (22) are rotatably arranged in the groove, an impeller (13) is fixedly mounted on one end of the rotating rods (22) away from the control valve (16), an air guide tube (12) is fixedly mounted on the side of the control seat (10), one end of the air guide tube (12) is connected to the control valve (16), and the other end of the air guide tube (12) is fixedly connected to a nozzle (14), and the outflow direction of the nozzle (14) is tangential to the impeller (13); An air pressure sensor is arranged in the air pressure control chamber (11).

2. The automatic detection and selection device for cigarette filter rods according to claim 1, It is characterized in that A plurality of partitions (5) are arranged at the bottom of the base (1), and the partitions (5) divide the space at the bottom of the base (1) into a plurality of material distribution chambers (6).

3. The automatic detection and selection device for cigarette filter rods according to claim 2, It is characterized in that At least two groups of the material distribution chambers (6) are provided, and different material distribution chambers (6) are used to store filter rods for cigarettes with different draw resistances.

4. The automatic detection and selection device for cigarette filter rods according to claim 1, It is characterized in that When the image acquisition component is performing image acquisition, the cigarette filter rod is driven to rotate through the automatic detection mechanism (4).

5. The automatic detection and selection device for cigarette filter rods according to claim 1, It is characterized in that Two groups of energized guide rails are arranged on the base (1), and two groups of energized guide posts are fixedly arranged on the transmission chain. The energized guide posts are slidably connected to the energized guide rails, and the energized guide posts are electrically connected to each automatic detection mechanism (4).

6. The automatic detection and selection device for cigarette filter rods according to claim 1, It is characterized in that A lifting and lowering adjustment component is provided at the bottom of the base (1).

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