Cigarette empty-end detecting device

Abstract

The utility model belongs to cigarette quality detection technical field discloses a cigarette empty head detection device. The cigarette empty head detection device includes infrared emitter, receiver group, operational amplifier processor and analysis processor, and infrared emitter interval and directly opposite setting in the end face of end head, receiver group sets up two, one receiver group surrounds the circumferential side of first section, and the other receiver group surrounds the circumferential side of second section, operational amplifier processor includes first operational amplifier processor and second operational amplifier processor, and first operational amplifier processor is electrically connected with one receiver group, second operational amplifier processor is electrically connected with the other receiver group, first operational amplifier processor and second operational amplifier processor all are electrically connected with processor, and analysis processor is used for judging whether cigarette is qualified. Cigarette empty head detection device can accurately judge whether cigarette belongs to big empty head cigarette and small empty head cigarette, and reduces the probability of big empty head cigarette and small empty head cigarette flowing into the market.

Description

Technical Field

[0001] This utility model relates to the field of cigarette quality testing technology, and in particular to a device for detecting empty cigarette ends. Background Technology

[0002] With the increase in automated and intelligent factories, more and more production and testing equipment is being introduced into the cigarette production field. Cigarette factories are paying increasing attention to quality inspection of cigarettes produced in automated processes, such as identifying empty cigarette ends. Empty cigarette ends are a serious quality defect that directly affects consumer interests and the cigarette brand image.

[0003] Existing technologies typically use infrared detectors to detect hollow cigarette defects. An infrared detector includes an infrared emitter and an infrared light receiver. The infrared emitter faces the lit end of the cigarette, and the infrared light receivers are spaced around the perimeter of the cigarette. The emitted infrared light illuminates the end face of the cigarette, and the infrared light receivers collect the infrared light emitted through the cigarette. The tobacco density is determined based on the number of emitted infrared light rays, and cigarettes with hollow defects are identified based on the tobacco density.

[0004] However, current infrared detectors can only detect a very small section at the end of the cigarette, and cannot make a correct identification of cigarettes with "large hollow ends" (such as cigarettes with very serious hollowness and depth). Utility Model Content

[0005] The purpose of this invention is to provide a cigarette empty cigarette detection device, which aims to solve the problem that the existing technology cannot accurately identify large empty cigarettes. This cigarette empty cigarette detection device can accurately determine whether a cigarette is a large empty cigarette, thereby reducing the probability of large empty cigarettes entering the market.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A cigarette tip detection device is used to detect the tip of a cigarette, wherein the tip of the cigarette includes a first segment and a second segment connected to each other, and the cigarette tip detection device includes:

[0008] Infrared emitters, spaced apart and directly facing each other, are disposed on the end face of the end head;

[0009] Two receiver groups are provided, one of which is arranged around the periphery of the first segment, and the other is arranged around the periphery of the second segment.

[0010] An operational amplifier processor includes a first operational amplifier processor and a second operational amplifier processor, wherein the first operational amplifier processor is electrically connected to one of the receiver groups; and the second operational amplifier processor is electrically connected to the other receiver group.

[0011] The analysis processor is electrically connected to both the first operational amplifier processor and the second operational amplifier processor.

[0012] In some possible implementations, the distance between the two receiver groups along the axial direction of the cigarette is 1.8 mm to 2.2 mm.

[0013] In some possible implementations, the distance between the two receiver groups along the axial direction of the cigarette is 2 mm.

[0014] In some possible implementations, each of the receiver groups includes at least two receivers, which are arranged in a rectangular pattern along the circumference of the cigarette.

[0015] In some possible implementations, each of the receiver groups includes four receivers arranged in a rectangular pattern along the circumference of the cigarette.

[0016] In some possible implementations, the cigarette empty head detection device further includes a voltage stabilizing drive circuit electrically connected to the infrared emitter and electrically connected to an external power supply.

[0017] In some possible implementations, the cigarette empty head detection device further includes a base having a groove, an infrared transmitter mounted on the bottom wall of the groove, and a receiver slidably mounted on the side wall of the groove.

[0018] In some possible implementations, the infrared emitter is fixed to the bottom wall of the groove by a magnetic structure, the magnetic structure including a first magnetic element and a second magnetic element, the first magnetic element being installed on the bottom wall of the groove and the second magnetic element being installed on the infrared emitter.

[0019] In some possible implementations, the sidewall of the groove is provided with a guide rail, the receiver is provided with a guide groove that matches the guide rail, the guide rail is provided with a plurality of evenly distributed locking holes, the receiver is provided with a mounting hole, and a threaded part passes through the mounting hole and the locking hole to fix the receiver to the base.

[0020] In some possible implementations, the cigarette empty end detection device further includes a filter tip mounted on the end of the cigarette remote from the infrared emitter.

[0021] The beneficial effects of this utility model are:

[0022] The cigarette empty cigarette detection device provided by this utility model effectively increases the detection length by setting up two receiver groups, one surrounding the periphery of a first section and the other surrounding the periphery of a second section. It uses infrared light detection technology, resulting in stable and reliable detection with high operational reliability. A first operational amplifier processor is electrically connected to one of the receiver groups, acquiring and amplifying the analog voltage of that receiver group to obtain a first amplified analog voltage. A second operational amplifier processor is electrically connected to the other receiver group, acquiring and amplifying the analog voltage of that receiver group to obtain a second amplified analog voltage. An analysis processor acquires both the first and second amplified analog voltages and determines whether the cigarette is qualified based on their magnitudes, identifying whether it is a large empty cigarette or a general empty cigarette, thus promptly removing large and general empty cigarettes and reducing their probability of entering the market. Attached Figure Description

[0023] Figure 1 This is a schematic diagram showing the positional relationship between the cigarette and the receiver group in the cigarette empty head detection device provided in this embodiment of the utility model;

[0024] Figure 2 This is a schematic diagram of the circuit structure of the cigarette empty end detection device provided in this embodiment of the utility model;

[0025] Figure 3 This is a schematic diagram showing the positional relationship between the base, infrared transmitter, receiver group, and cigarette provided in this embodiment of the utility model.

[0026] In the picture:

[0027] 100. Cigarette stick; 110. First segment; 120. Second segment; 200. Filter; 300. Infrared transmitter; 400. Receiver assembly; 410. Receiver; 500. Base; 510. Groove; 610. First operational amplifier processor; 620. Second operational amplifier processor; 700. Analysis processor; 800. Voltage regulator drive circuit; 900. External power supply. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0032] like Figures 1 to 3 As shown, this embodiment provides a cigarette empty end detection device for detecting the end of a cigarette 100. The end of the cigarette 100 includes a first segment 110 and a second segment 120 connected to each other. The cigarette empty end detection device includes an infrared emitter 300, a receiver group 400, an operational amplifier processor, and an analysis processor 700. The infrared emitters 300 are spaced apart and directly opposite each other on the end face of the cigarette end. Two receiver groups 400 are provided, one surrounding the periphery of the first segment 110 and the other surrounding the periphery of the second segment 120. The operational amplifier processor includes a first operational amplifier processor 610 and a second operational amplifier processor 620. The first operational amplifier processor 610 is electrically connected to one of the receiver groups 400; the second operational amplifier processor 620 is electrically connected to the other receiver group 400; both the first and second operational amplifier processors 610 and 620 are electrically connected to the analysis processor 700, which is used to determine whether the cigarette 100 is qualified.

[0033] The cigarette empty-end detection device provided in this embodiment effectively increases the detection length of the cigarette 100 by setting up two receiver groups 400, one receiver group 400 surrounding the periphery of the first segment 110 and the other receiver group 400 surrounding the periphery of the second segment 120. It uses infrared light detection technology, resulting in stable and reliable detection and high reliability. A first operational amplifier processor 610 is electrically connected to one of the receiver groups 400. The first operational amplifier processor 610 is used to acquire and amplify the analog voltage of the receiver group 400 to obtain a first amplified analog voltage. A second operational amplifier processor 620 is connected to the other receiver group 400. The second operational amplifier processor 620 is used to acquire the analog voltage of the receiver group 400 and amplify the analog voltage to obtain the second amplified analog voltage. The analysis processor 700 is used to acquire the first amplified analog voltage and the second amplified analog voltage, and to determine whether the cigarette 100 is qualified based on the magnitude of the first amplified analog voltage and the second amplified analog voltage. It determines whether the cigarette 100 belongs to the category of large-empty cigarette 100 and general-empty cigarette 100 (i.e., small-empty cigarette 100), so as to remove the large-empty cigarette 100 and general-empty cigarette 100 in time and reduce the probability of large-empty cigarette 100 and general-empty cigarette 100 entering the market.

[0034] Optionally, each receiver group 400 includes at least two receivers 410, which are arranged in a rectangular pattern along the circumference of the cigarette 100. This allows the receivers 410 to receive as much reflected infrared light as possible, improving the accuracy and reliability of the detection. In this embodiment, each receiver group 400 includes four receivers 410, which are arranged in a rectangular pattern along the circumference of the cigarette 100. If the number of receivers 410 is too small, it cannot be guaranteed that the receivers 410 can receive as much reflected infrared light as possible; if the number of receivers 410 is too large, it increases the overall cost. In other embodiments, each receiver group 400 may include three, five, or six receivers 410, or other numbers, depending on the need.

[0035] like Figure 3 As shown, the cigarette empty end detection device also includes a base 500, which has a groove 510. An infrared transmitter 300 is mounted on the bottom wall of the groove 510, and a receiver 410 is slidably mounted on the side wall of the groove 510. Both the infrared transmitter 300 and the receiver 410 are installed inside the groove 510, which protects them from damage caused by the external environment.

[0036] Optionally, the infrared emitter 300 is fixed to the bottom wall of the groove 510 by a magnetic structure. The magnetic structure includes a first magnetic component and a second magnetic component. The first magnetic component is installed on the bottom wall of the groove 510, and the second magnetic component is installed on the infrared emitter 300. The infrared emitter 300 and the groove 510 are stably connected by magnetic force, simplifying the structure and improving the efficiency of assembling and disassembling the infrared emitter 300 and the base 500.

[0037] In this embodiment, the sidewall of the groove 510 is provided with a guide rail, and the receiver 410 is provided with a guide groove that matches the guide rail. The guide rail is provided with a plurality of evenly distributed locking holes, and the receiver 410 is provided with a mounting hole. A threaded component passes through the mounting hole and the locking hole to fix the receiver 410 to the base 500. By providing the guide rail and guide groove to cooperate, the position of the receiver 410 can be easily adjusted. After the position of the receiver 410 is determined, it can be fixed to the base 500 simply by using the threaded component.

[0038] Preferably, the empty cigarette detection device also includes a voltage stabilizing drive circuit 800, which is electrically connected to the infrared emitter 300 and to an external power supply 900. By providing the voltage stabilizing drive circuit 800, a stable trigger voltage is supplied to the infrared emitter 300, ensuring that the emitted infrared light remains stable and preventing false detection of empty cigarettes 100 due to changes in the intensity of the detection light itself.

[0039] In this embodiment, the cigarette empty end detection device also includes a filter 200, which is installed at the end of the cigarette 100 furthest from the infrared emitter 300. The filter 200 filters harmful substances produced by tobacco combustion, reducing tar intake by 30%-40% through mechanical interception.

[0040] Optionally, the distance between the two receiver groups 400 along the axial direction of the cigarette 100 is 1.8mm-2.2mm. This setting ensures that the detection range of the cigarette tip 100 is sufficient to make a correct identification judgment. Preferably, the distance between the two receiver groups 400 along the axial direction of the cigarette 100 is 2mm. In other embodiments, the distance between the two receiver groups 400 along the axial direction of the cigarette 100 can be set to other values ​​such as 1.9mm or 2.1mm, as needed.

[0041] For example, the detection method in this embodiment includes:

[0042] When cigarette 100 is a qualified cigarette 100 (i.e., a non-empty cigarette 100), the first segment 110 and the second segment 120 of cigarette 100 are fully filled. Infrared light is almost entirely absorbed at the first segment 110 of cigarette 100, resulting in very little light being reflected to the receiver group 400 near the end face of cigarette 100. Consequently, the analog voltage generated by the receiver group 400 is relatively low. After processing by the first operational amplifier processor 610 connected to the receiver group 400, a first amplified analog voltage V1 is obtained. V1 is used to determine the quality of cigarette 100. It is not a hollow cigarette; after the absorption and reflection of the tobacco in the first section 110, even less infrared light reaches the second section 120 of the cigarette stick 100. After further absorption by the tobacco in the second section 120, very little infrared light is reflected to the receiver group 400 at the end face far from the end of the cigarette stick 100. The analog voltage generated by the receiver group 400 is very low. After processing by the second operational amplifier processor 620 connected to the receiver group 400, a second amplified analog voltage V2 is obtained, and V1 > V2. By judgment, it is determined that the cigarette stick 100 is not a large hollow cigarette.

[0043] When cigarette 100 is a typical hollow cigarette 100 (i.e., not a large hollow cigarette 100, also called a small hollow cigarette 100), the tobacco filling in the first segment 110 of cigarette 100 is poor. Infrared light is absorbed by the tobacco in the first segment 110 and reflected to the receiver group 400 near the end face of cigarette 100. This receiver group 400 receives a large amount of infrared light and generates a high analog voltage. After processing by the first operational amplifier processor 610 connected to the receiver group 400, a first amplified analog voltage V3 is obtained. V3 is used to determine that cigarette 100 is a hollow cigarette 100. After absorption and reflection by the tobacco in segment 110, very little infrared light reaches the second segment 120. Furthermore, due to the fullness of the tobacco in the second segment 120, the infrared light reaching the second segment 120 is basically absorbed. Very little light is reflected to the receiver group 400, which is far from the end face of the cigarette stick 100. The analog voltage generated by the receiver group 400 is low. After processing by the second operational amplifier processor 620 connected to the receiver group 400, a second amplified analog voltage V4 is obtained. V3 > V4, and usually V3 > V1, V4 > V2. By judgment, it is determined that the cigarette stick 100 is a non-large hollow cigarette stick 100.

[0044] When cigarette 100 is a large empty cigarette 100, the first segment 110 of cigarette 100 has almost no tobacco, so infrared light is neither absorbed nor reflected here. The infrared light reaches the second segment 120 of cigarette 100 with almost no reduction. The receiver group 400 near the end face of cigarette 100 receives a small amount of infrared light and generates an extremely low analog voltage. After being processed by the first operational amplifier processor 610 connected to the receiver group 400, a first amplified analog voltage V5 is obtained. Based on V5, it is determined that cigarette 100 is not an empty cigarette 100. Since the second segment 120 is not filled with enough tobacco, a small amount of infrared light is absorbed and reflected to the receiver group 400 far from the end face of cigarette 100. The receiver group 400 receives more infrared light and generates a higher analog voltage. After being processed by the second operational amplifier processor 620 connected to the receiver group 400, a second amplified analog voltage V6 is obtained. V5 < V6. Based on this, it is determined that cigarette 100 is a large empty cigarette 100.

[0045] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A cigarette end detection device for detecting the end of a cigarette (100), wherein the end of the cigarette (100) comprises a first segment (110) and a second segment (120) connected to each other, characterized in that, The cigarette empty end detection device includes: Infrared emitters (300) are spaced apart and directly opposite to the end face of the end head; Two receiver groups (400) are provided, one of which is arranged around the periphery of the first segment (110), and the other is arranged around the periphery of the second segment (120). The operational amplifier processor includes a first operational amplifier processor (610) and a second operational amplifier processor (620), wherein the first operational amplifier processor (610) is electrically connected to one of the receiver groups (400); and the second operational amplifier processor (620) is electrically connected to the other receiver group (400). The analysis processor (700) is electrically connected to both the first operational amplifier processor (610) and the second operational amplifier processor (620).

2. The cigarette empty end detection device according to claim 1, characterized in that, The distance between the two receiver groups (400) along the axial direction of the cigarette stick (100) is 1.8mm-2.2mm.

3. The cigarette empty end detection device according to claim 2, characterized in that, The distance between the two receiver groups (400) along the axial direction of the cigarette stick (100) is 2 mm.

4. The cigarette empty end detection device according to claim 1, characterized in that, Each of the receiver groups (400) includes at least two receivers (410), which are arranged in a rectangular pattern along the circumference of the cigarette (100).

5. The cigarette empty end detection device according to claim 4, characterized in that, Each of the receiver groups (400) includes four receivers (410) arranged in a rectangular pattern along the circumference of the cigarette (100).

6. The cigarette empty end detection device according to claim 4, characterized in that, The cigarette empty head detection device also includes a base (500) having a groove (510), an infrared transmitter (300) mounted on the bottom wall of the groove (510), and a receiver (410) slidably mounted on the side wall of the groove (510).

7. The cigarette empty end detection device according to claim 6, characterized in that, The infrared emitter (300) is fixed to the bottom wall of the groove (510) by a magnetic structure. The magnetic structure includes a first magnetic component and a second magnetic component. The first magnetic component is installed on the bottom wall of the groove (510), and the second magnetic component is installed on the infrared emitter (300).

8. The cigarette empty end detection device according to claim 6, characterized in that, The sidewall of the groove (510) is provided with a guide rail, the receiver (410) is provided with a guide groove that matches the guide rail, the guide rail is provided with a plurality of evenly distributed locking holes, the receiver (410) is provided with a mounting hole, and a threaded part passes through the mounting hole and the locking hole to fix the receiver (410) to the base (500).

9. The cigarette empty end detection device according to claim 1, characterized in that, The cigarette empty end detection device also includes a filter (200), which is installed at the end of the cigarette (100) away from the infrared emitter (300).

10. The cigarette empty end detection device according to claim 1, characterized in that, The cigarette empty head detection device also includes a voltage stabilizing drive circuit (800), which is electrically connected to the infrared emitter (300) and electrically connected to an external power supply (900).

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