A small box transparent paper offset adjustment system and adjustment method

Abstract

This invention discloses a system and method for adjusting the offset of transparent paper in a small box. The system includes a detection mechanism, a controller, and an execution mechanism. The detection mechanism includes a transparent paper detection device for detecting the position of the transparent paper on both sides of the small box. The execution mechanism includes a drive device, the output of which is connected to the transparent paper upstream of the transparent paper detection device. The transparent paper detection device and the drive device are electrically connected to the controller. The transparent paper detection device sends the detected position signal of the transparent paper to the controller, and the controller sends an adjustment command to the drive device based on the received position signal. This invention uses four sensors to detect the position of the transparent paper. The controller sends an adjustment command to the drive device based on the received position signal, and the drive device adjusts the position of the transparent paper accordingly. This achieves automatic adjustment of the transparent paper offset with precise positioning and high efficiency.

Description

Technical Field

[0001] This invention relates to the field of transparent paper packaging machine technology, and more specifically, to a small box transparent paper offset adjustment system and adjustment method. Background Technology

[0002] To prevent the cigarettes from getting damp and losing moisture and aroma, the cigarette packs need to be wrapped with transparent paper after the cigarettes are packed inside. Because the slim cigarette packs are narrow and long, only a small portion of the transparent paper is on the sides, making it prone to shifting. When this shift is detected by the detection sensor, manual adjustment of the transparent paper's position is required. Since the amount of transparent paper on the sides is small, adjusting the transparent paper to the accurate position is difficult, requiring multiple adjustments, resulting in low efficiency and reduced production productivity. Summary of the Invention

[0003] To address at least one of the aforementioned technical problems, the present invention provides a small box transparent paper offset adjustment system and method. The adjustment system uses four sensors to detect the position of the transparent paper. The controller sends an adjustment command to the driving device based on the received position signal of the transparent paper, and the driving device adjusts the position of the transparent paper accordingly, thereby realizing automatic adjustment of the transparent paper offset.

[0004] The present invention solves the technical problem by adopting the following technical solution:

[0005] A small box of transparent paper offset adjustment system includes a detection mechanism, a controller, and an actuator;

[0006] The detection mechanism includes a transparent paper detection device; the transparent paper detection device includes an inner sensor and an outer sensor disposed on one side of the cigarette pack conveying channel, and an inner second sensor and an outer second sensor disposed on the other side of the cigarette pack conveying channel; the outer first sensor is disposed outside the inner first sensor, and the outer second sensor is disposed outside the inner second sensor.

[0007] The actuator includes a drive device, the output end of which is connected to the transparent paper upstream of the transparent paper detection device;

[0008] The inner sensor, inner second sensor, outer sensor, outer second sensor, and driving device are all electrically connected to the controller. The inner sensor, inner second sensor, outer first sensor, and outer second sensor send the detected position signal of the transparent paper to the controller, and the controller sends an adjustment command to the driving device based on the received position signal of the transparent paper.

[0009] Furthermore, the driving device is configured as a stepper motor to precisely adjust the position of the transparent paper.

[0010] Furthermore, the actuator also includes a rocker arm support fixedly disposed at the output end of the drive device. A connecting plate is fixedly disposed at the end of the rocker arm support away from the drive device, and a first guide roller and a second guide roller are disposed parallel to each other on the connecting plate.

[0011] Furthermore, the system also includes an HMI control panel, which is electrically connected to the controller to monitor the position and status of the transparent paper in real time.

[0012] A method for adjusting the offset of a small box of transparent paper, comprising adjusting the position of the small box of transparent paper using any of the above-described small box transparent paper offset adjustment systems, the method comprising the following steps:

[0013] Step 1: The inner sensor 1, inner sensor 2, outer sensor 1, and outer sensor 2 collect the position signal of the transparent paper on the cigarette pack and send the position signal of the transparent paper to the controller.

[0014] Step 2: The controller determines whether the position of the transparent paper on the current cigarette pack is accurate based on the received position signal. If the position of the transparent paper is accurate, no action is taken. If the position of the transparent paper is off, the controller determines the adjustment direction of the transparent paper and sends an adjustment command to the drive device.

[0015] Step 3: The drive device moves in the direction corresponding to the received adjustment command, driving the transparent paper to move in the adjustment direction;

[0016] Step 4: The inner sensor 1, inner sensor 2, outer sensor 1, and outer sensor 2 collect the position signal of the transparent paper on the next cigarette pack and send it to the controller, returning to step 2 until the position of the transparent paper is accurate.

[0017] Furthermore, step 4 also includes sending the position signal of the transparent paper on the next cigarette pack, which is re-acquired after a delay time t, to the controller via an inner sensor, an inner second sensor, an outer sensor, and an outer second sensor; preferably, the delay time t is set to 1-5s to facilitate the sensor feedback of the adjusted position signal of the transparent paper.

[0018] Furthermore, methods for determining the position of the transparent paper include:

[0019] When both the inner sensor 1 and the inner sensor 2 detect the transparent paper, but neither the outer sensor 1 nor the outer sensor 2 detect the transparent paper, the position of the transparent paper is accurately determined.

[0020] When both the inner sensor and the outer sensor detect the transparent paper, but neither the inner sensor nor the outer sensor detects the transparent paper, it is determined that the transparent paper needs to be moved toward the inner sensor.

[0021] When both the inner and outer sensors detect the transparent paper, but neither the inner nor outer sensor detects it, it is determined that the transparent paper needs to move towards the inner sensor.

[0022] Furthermore, methods for determining the position of the transparent paper also include:

[0023] When both external sensor 1 and external sensor 2 detect transparent paper, or both external sensor 1 and internal sensor 2 detect transparent paper, or both external sensor 2 and internal sensor 1 detect transparent paper, an error is detected, the controller sends an error signal, and the equipment stops.

[0024] When at least three of the internal sensor 1, internal sensor 2, external sensor 1, and external sensor 2 detect the transparent paper while the other sensor does not, or when one sensor detects the transparent paper while the other three do not, an error is detected, the controller sends an error signal, and the equipment stops.

[0025] Furthermore, the detection mechanism also includes a cigarette pack detector, which is located at the upstream station or the same station as the transparent paper detection device, and is used to detect the presence of cigarette packs;

[0026] When the cigarette pack detector detects the presence of a cigarette pack, and none of the inner sensor 1, inner sensor 2, outer sensor 1, or outer sensor 2 detects the transparent paper, it is determined that there is no transparent paper on the cigarette pack. The controller then sends a rejection signal to remove the cigarette pack and detects the state of the cigarette pack without transparent paper.

[0027] Furthermore, when the drive device uses a stepper motor, after the position of the transparent paper is accurately adjusted by the stepper motor, the stepper motor rotates 0.5-1°; when the rotation angle of the stepper motor exceeds 10°, an error is detected, the controller sends an error signal, and the equipment stops.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0029] The position of the transparent paper is detected by four sensors: an inner sensor, an inner sensor, an outer sensor, and an outer sensor. The controller sends an adjustment command to the drive device based on the received position signal of the transparent paper. The drive device then adjusts the position of the transparent paper accordingly. This enables automatic adjustment of the transparent paper's offset, ensuring precise and efficient adjustment and reducing the influx of defective products such as boxes without transparent paper or packaging with excessively offset transparent paper into the consumer market. Attached Figure Description

[0030] To better understand the above and other objects, features, advantages, and functions of the present invention, reference can be made to the embodiments shown in the accompanying drawings. The same reference numerals in the drawings refer to the same parts. Those skilled in the art should understand that the drawings are intended to schematically illustrate preferred embodiments of the invention and do not limit the scope of the invention in any way; the parts in the drawings are not drawn to scale.

[0031] Figure 1 This is a schematic diagram of the structure of the small box transparent paper offset adjustment system of the present invention.

[0032] Figure 2 This is a schematic diagram of the actuator of the small box transparent paper offset adjustment system of the present invention.

[0033] Figure 3 This is a schematic diagram of the HMI control screen of the small box transparent paper offset adjustment system of the present invention.

[0034] In the diagram: 11-Inner sensor 1; 12-Outer sensor 1; 21-Inner sensor 2; 22-Outer sensor 2; 31-Stepper motor; 32-Swing arm support; 33-Connecting plate; 34-First guide roller; 35-Second guide roller; 4-HMI control screen; 5-Transparent paper; 6-Cigarette pack. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this invention clearer, exemplary embodiments of this disclosure are described below with reference to the accompanying drawings, including various details of the embodiments to aid understanding. These should be considered merely exemplary. Therefore, those skilled in the art should recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this disclosure. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0036] In the description of this invention, it should be noted that the term "comprising" and its variations indicate an open-ended inclusion, i.e., "including but not limited to". The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing the invention and simplifying the description, 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, and therefore should not be construed as a limitation of the invention.

[0037] This invention provides a small box transparent paper offset adjustment system, such as... Figure 1As shown, the device includes a detection mechanism, a controller, and an actuator. The detection mechanism includes a transparent paper detection device; the transparent paper detection device includes an inner sensor 11 and an outer sensor 12 disposed on one side of the cigarette pack 6 conveying channel, and an inner second sensor 21 and an outer second sensor 22 disposed on the other side of the cigarette pack 6 conveying channel; the outer sensor 12 is disposed outside the inner sensor 11, and the outer second sensor 22 is disposed outside the inner second sensor 21. The transparent paper detection device is used to detect the state of the transparent paper 5. The inner sensor 11 and the inner second sensor 21 are closer to the cigarette pack 6 and can detect the portion of the transparent paper 5 extending closer to the cigarette pack 6; the outer sensor 12 and the outer second sensor 22 are slightly farther away from the cigarette pack 6 and can detect the portion of the transparent paper 5 extending farther away from the cigarette pack 6. The arrangement of the inner sensor 11, inner second sensor 21, outer sensor 12, and outer second sensor 22 requires that when the transparent paper 5 on one side of the inner sensor 11 shifts towards the small box and moves out of the detection range of the inner sensor 11, the transparent paper 5 on one side of the inner second sensor 21 shifts away from the small box and moves into the detection range of the outer second sensor 22; conversely, when the transparent paper 5 on one side of the inner second sensor 21 shifts towards the small box and moves out of the detection range of the inner second sensor 21, the transparent paper 5 on one side of the inner sensor 11 shifts away from the small box and moves into the detection range of the outer first sensor 12. Each sensor can use a fiber optic probe for accurate detection.

[0038] The actuator includes a drive device, the output end of which is connected to the transparent paper 5 upstream of the transparent paper detection device. Specifically, as shown... Figure 2 As shown, the actuator further includes a swing arm support 32 fixedly mounted on the output end of the drive device. A connecting plate 33 is fixedly mounted on the end of the swing arm support 32 away from the drive device. A first guide roller 34 and a second guide roller 35 are arranged parallel to each other on the connecting plate 33. The transparent paper 5 is conveyed through the first guide roller 34 and the second guide roller 35. Preferably, the drive device is a stepper motor 31, which can precisely adjust the position of the transparent paper 5. The swing arm support 32 is mounted on the output shaft of the stepper motor 31. When the output shaft of the stepper motor 31 rotates, it drives the swing arm support 32 to rotate, thereby rotating the connecting plate 33, the first guide roller 34, and the second guide roller 35, thus adjusting the position of the transparent paper 5 passing through the first guide roller 34 and the second guide roller 35.

[0039] The inner sensor 11, inner sensor 21, outer sensor 12, outer sensor 22, and driving device are all electrically connected to the controller. The inner sensor 11, inner sensor 21, outer sensor 12, and outer sensor 22 send the detected position signal of the transparent paper 5 to the controller, and the controller sends an adjustment command to the driving device according to the received position signal of the transparent paper 5.

[0040] In one embodiment, such as Figure 3 As shown, the system also includes an HMI (Human Machine Interface) control panel, which is electrically connected to the controller. The HMI control panel 4 can display the monitoring status of each sensor, monitor the position of the transparent paper 5 in real time, and can also write important parameters, such as setting the motor speed and pulse count. It can also switch between automatic and manual operation. The controller can automatically control the stepper motor 31 to rotate and adjust the position of the transparent paper 5 passing through the first guide roller 34 and the second guide roller 35. The operator can also manually control the stepper motor 31 to rotate.

[0041] The present invention also provides a method for adjusting the offset of the small box of transparent paper 5, wherein the position of the small box of transparent paper 5 is adjusted using the small box of transparent paper offset adjustment system described above, and the method includes the following steps:

[0042] Step 1: Inner sensor 11, inner sensor 21, outer sensor 12 and outer sensor 22 collect the position signal of the transparent paper 5 on the current cigarette pack 6 and send the position signal of the transparent paper 5 to the controller.

[0043] Step 2: The controller determines whether the position of the transparent paper 5 on the current cigarette pack 6 is accurate based on the received position signal. If the position of the transparent paper 5 is accurate, no action is taken. If the position of the transparent paper 5 is off, the controller determines the adjustment direction of the transparent paper 5 and sends an adjustment command to the drive device.

[0044] Step 3: The drive device moves in the direction corresponding to the received adjustment command, driving the transparent paper 5 to move in the adjustment direction;

[0045] Step 4: Inner sensor 11, inner sensor 21, outer sensor 12 and outer sensor 22 collect the position signal of the transparent paper 5 on the next cigarette pack 6 and send it to the controller, returning to step 2 until the position of the transparent paper 5 is accurate.

[0046] Step 4 further includes the inner sensor 11, inner sensor 21, outer sensor 12, and outer sensor 22 sending the position signal of the transparent paper 5 on the next cigarette pack 6, which is re-collected after a delay time t, to the controller. When each sensor is working, it continuously monitors the state of the transparent paper 5 on the cigarette pack 6. The transparent paper 5 that needs adjustment is located upstream of the transparent paper detection device. After the transparent paper 5 is adjusted and wraps the cigarette pack 6, it takes a certain amount of time to transport it to the detection mechanism. Therefore, the cigarette pack 6 that passes through the transparent paper detection device after a delay time t can be considered the next cigarette pack 6. Each sensor collects the position signal of the transparent paper 5 on this cigarette pack 6 and sends the position signal to the controller to re-judge the position of the transparent paper 5 and detect whether the position of the transparent paper 5 has been accurately adjusted. Preferably, the delay time t is set to 1-5s. For example, the delay time t can be set to 1s, 2s, 3s, 4s, 5s, etc., and can be set according to the adjustment speed of the drive device and the conveying situation of the cigarette pack 6 in the actual production process.

[0047] For ease of description, the following description exemplifies the arrangement of an inner sensor 11 and an outer sensor 12 on the left side of the cigarette pack 6 conveying channel, and an inner sensor 21 and an outer sensor 22 on the right side of the cigarette pack 6 conveying channel. Exemplarily, a stepper motor 31 rotates clockwise to move the transparent paper 5 passing through the first guide roller 34 and the second guide roller 35 to the right, and a stepper motor 31 rotates counterclockwise to move the transparent paper 5 passing through the first guide roller 34 and the second guide roller 35 to the left.

[0048] The detection status of each sensor on the transparent paper 5 is shown in Table 1. When the sensor detects the transparent paper 5, it is marked as "1" and when the sensor does not detect the transparent paper 5, it is marked as "0".

[0049] Table 1. Transparent paper detection by the sensor

[0050]

[0051] The methods for determining the position of transparent paper 5 include:

[0052] When both inner sensor 11 and inner sensor 21 detect the transparent paper 5, while neither outer sensor 12 nor outer sensor 22 detects the transparent paper 5, the position of the transparent paper 5 is determined to be accurate. At this time, the transparent paper 5 wrapping the small box does not shift, and the controller and drive device do not need to operate, maintaining the transparent paper 5 in its current position for conveying.

[0053] When both inner sensor 11 and outer sensor 12 detect the transparent paper 5, but neither inner sensor 21 nor outer sensor 22 detects it, it is determined that the transparent paper 5 needs to move towards inner sensor 21. At this time, the transparent paper 5 shifts to the left, with the left side of the small box having a longer transparent paper 5 and the right side having a shorter one. The controller determines that the adjustment direction of the transparent paper 5 is to move it to the right and sends a rightward adjustment command to stepper motor 31, adjusting the transparent paper 5 upstream of the transparent paper detection device to move to the right. According to the received adjustment command, stepper motor 31 rotates clockwise, adjusting the transparent paper 5 passing through the first guide roller 34 and the second guide roller 35 to move to the right, so that inner sensor 11 and inner sensor 21 can detect the transparent paper 5, while outer sensor 12 and outer sensor 22 cannot.

[0054] When both inner sensor 21 and outer sensor 22 detect the transparent paper 5, while inner sensor 11 and outer sensor 12 do not, it is determined that the transparent paper 5 needs to move towards inner sensor 11. At this time, the transparent paper 5 shifts to the right, with the transparent paper 5 on the right side of the small box being longer and the transparent paper 5 on the left side being shorter. The controller determines that the adjustment direction of the transparent paper 5 is to move to the left and sends a leftward adjustment command to stepper motor 31, adjusting the transparent paper 5 upstream of the transparent paper detection device to move to the left. According to the received adjustment command, stepper motor 31 rotates counterclockwise, adjusting the transparent paper 5 passing through the first guide roller 34 and the second guide roller 35 to move to the left, so that inner sensor 11 and inner sensor 21 can detect the transparent paper 5, while outer sensor 12 and outer sensor 22 cannot detect the transparent paper 5.

[0055] The methods for determining the position of transparent paper 5 also include:

[0056] When both external sensor 12 and external sensor 22 detect the transparent paper 5, or both external sensor 12 and internal sensor 21 detect the transparent paper 5, or both external sensor 22 and internal sensor 11 detect the transparent paper 5, an error is detected, the controller sends an error signal, and the equipment stops.

[0057] When at least three of the internal sensor 11, internal sensor 21, external sensor 12, and external sensor 22 detect the transparent paper 5, while the other sensor does not, or when one sensor detects the transparent paper 5 and the other three do not, an error is detected, the controller issues an error signal, and the equipment stops. For example, if internal sensor 11, internal sensor 21, and external sensor 12 all detect the transparent paper 5, but external sensor 22 does not; or if all four sensors detect the transparent paper 5; or if internal sensor 11 detects the transparent paper 5, but external sensor 12, internal sensor 21, and external sensor 22 do not, a sensor malfunction may occur, the controller issues an error signal, and the equipment stops for maintenance.

[0058] The detection mechanism also includes a cigarette pack detector, which is located upstream of or at the same station as the transparent paper detection device, and is used to detect the presence of cigarette packs 6. For example, the cigarette pack detector can use a 3S234 double-pack detection sensor on the YB55 drive chain. When the equipment is normally conveying the cigarette packs 6 and packaging the transparent paper 5, the 3S234 sensor is triggered, detecting the presence of cigarette packs 6, and all sensors of the transparent paper detection device work normally to collect the position signal of the transparent paper 5.

[0059] When the cigarette pack detector detects the presence of cigarette pack 6, and none of the inner sensor 11, inner sensor 21, outer sensor 12, or outer sensor 22 detects the transparent paper 5, it is determined that cigarette pack 6 does not have the transparent paper 5. The controller then issues a rejection signal to remove the cigarette pack 6. By combining the detection results from the cigarette pack detector, inner sensor 11, inner sensor 21, outer sensor 12, and outer sensor 22, the state of cigarette pack 6 without transparent paper 5 can be detected. This prevents the controller from frequently issuing rejection signals and causing erroneous operation when there is a gap in the cigarette pack 6's transport and the sensors cannot detect the transparent paper 5.

[0060] In one embodiment, when the driving device uses a stepper motor 31, after the position of the transparent paper 5 is accurately adjusted by the stepper motor 31, the stepper motor 31 rotates 0.5-1°. For example, the stepper motor 31 rotates clockwise to adjust the transparent paper 5 passing through the first guide roller 34 and the second guide roller 35 to move to the right, so that the position of the transparency value is accurately adjusted. Then, it rotates counterclockwise by 0.5°, 0.6°, 0.7°, 0.8°, 0.9°, or 1° to compensate for over-adjustment. When the stepper motor 31 rotates to adjust the position of the transparent paper 5, if the rotation angle exceeds 10°, an error is judged to have occurred. For example, the swing arm support 32 of the transparent paper 5, the first guide roller 34, and the second guide roller 35 may be malfunctioning. The controller issues an error signal, and the equipment needs to be stopped for maintenance.

[0061] This invention uses four sensors—an inner sensor 11, an inner second sensor 21, an outer sensor 12, and an outer second sensor 22—to detect the position of the transparent paper 5. The controller sends an adjustment command to the drive device based on the received position signal of the transparent paper 5. The drive device then adjusts the position of the transparent paper 5 accordingly. This invention enables automatic adjustment of the offset of the transparent paper 5, ensuring precise and efficient adjustment. It also reduces the number of defective products, such as small boxes without transparent paper 5 or those with excessively offset transparent paper 5 packaging, from entering the consumer market.

[0062] 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, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A small box transparent paper offset adjustment system, characterized in that, Includes testing mechanisms, controllers, and actuators; The detection mechanism includes a transparent paper detection device; the transparent paper detection device includes an inner sensor and an outer sensor disposed on one side of the cigarette pack conveying channel, and an inner second sensor and an outer second sensor disposed on the other side of the cigarette pack conveying channel; the outer first sensor is disposed outside the inner first sensor, and the outer second sensor is disposed outside the inner second sensor. The actuator includes a drive device, the output end of which is connected to the transparent paper upstream of the transparent paper detection device; The inner sensor, inner sensor 2, outer sensor 1, outer sensor 2, and driving device are all electrically connected to the controller; the inner sensor 1, inner sensor 2, outer sensor 1, and outer sensor 2 send the detected position signal of the transparent paper to the controller, and the controller sends an adjustment command to the driving device according to the received position signal of the transparent paper. When both the inner sensor 1 and the inner sensor 2 detect the transparent paper, but neither the outer sensor 1 nor the outer sensor 2 detect the transparent paper, the position of the transparent paper is accurately determined. When both the inner sensor and the outer sensor detect the transparent paper, but neither the inner sensor nor the outer sensor detects the transparent paper, it is determined that the transparent paper needs to be moved toward the inner sensor. When both the inner and outer second sensors detect the transparent paper, but neither the inner nor outer first sensor detects the transparent paper, it is determined that the transparent paper needs to be moved toward the inner first sensor. When both external sensor 1 and external sensor 2 detect transparent paper, or both external sensor 1 and internal sensor 2 detect transparent paper, or both external sensor 2 and internal sensor 1 detect transparent paper, an error is detected, the controller sends an error signal, and the equipment stops. When at least three of the internal sensor 1, internal sensor 2, external sensor 1, and external sensor 2 detect the transparent paper while the other sensor does not, or when one sensor detects the transparent paper while the other three do not, an error is detected, the controller sends an error signal, and the equipment stops.

2. The small box transparent paper offset adjustment system according to claim 1, characterized in that, The driving device is a stepper motor.

3. The small box transparent paper offset adjustment system according to claim 1 or 2, characterized in that, The actuator also includes a rocker arm support fixedly mounted on the output end of the drive device. A connecting plate is fixedly mounted on the end of the rocker arm support away from the drive device, and a first guide roller and a second guide roller are arranged in parallel on the connecting plate.

4. The small box transparent paper offset adjustment system according to claim 1, characterized in that, The system also includes an HMI control panel, which is electrically connected to the controller.

5. A method for adjusting the offset of a small box of transparent paper, comprising using the small box transparent paper offset adjustment system according to any one of claims 1-4 to adjust the position of the small box of transparent paper, characterized in that, The method includes the following steps: Step 1: The inner sensor 1, inner sensor 2, outer sensor 1, and outer sensor 2 collect the position signal of the transparent paper on the cigarette pack and send the position signal of the transparent paper to the controller. Step 2: The controller determines whether the position of the transparent paper on the current cigarette pack is accurate based on the received position signal. If the position of the transparent paper is accurate, no action is taken. If the position of the transparent paper is off, the controller determines the adjustment direction of the transparent paper and sends an adjustment command to the drive device. Step 3: The drive device moves in the direction corresponding to the received adjustment command, driving the transparent paper to move in the adjustment direction; Step 4: The inner sensor 1, inner sensor 2, outer sensor 1, and outer sensor 2 collect the position signal of the transparent paper on the next cigarette pack and send it to the controller, returning to step 2 until the position of the transparent paper is accurate.

6. The method for adjusting the offset of the transparent paper in the small box according to claim 5, characterized in that, Step 4 also includes sending the position signal of the transparent paper on the next cigarette pack, which is re-acquired after a delay time t, from the inner sensor 1, inner sensor 2, outer sensor 1, and outer sensor 2 to the controller.

7. The method for adjusting the offset of the transparent paper in a small box according to claim 6, characterized in that, The delay time t is set to 1-5 seconds.

8. The method for adjusting the offset of the transparent paper in a small box according to claim 5, characterized in that, The detection mechanism also includes a cigarette pack detector, which is located at the upstream station or the same station as the transparent paper detection device, and is used to detect the presence of cigarette packs; When the cigarette pack detector detects the presence of a cigarette pack, and none of the inner sensor 1, inner sensor 2, outer sensor 1, or outer sensor 2 detects the transparent paper, it is determined that there is no transparent paper on the cigarette pack. The controller then sends a rejection signal to reject the cigarette pack.

9. The method for adjusting the offset of the transparent paper in a small box according to claim 5, characterized in that, When the drive device uses a stepper motor, after the position of the transparent paper is accurately adjusted by the stepper motor, the stepper motor rotates 0.5-1°; when the rotation angle of the stepper motor exceeds 10°, an error is detected, the controller sends an error signal, and the equipment stops.

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