Cigarette making machine cloth belt slip monitoring device and cigarette making machine

By marking points on the conveyor belt and detecting them with photoelectric sensors, combined with PLC control and alarm devices, the problem of conveyor belt slippage in cigarette making machines has been solved, improving production efficiency and cigarette quality, and reducing the blindness of manual inspection.

CN223891821UActive Publication Date: 2026-02-10CHINA TOBACCO HUNAN IND CORP
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Patent Information

Application Number
CN202520641429.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-02-10
Estimated Expiration
2035-04-08

AI Technical Summary

Technical Problem

In the production process of existing cigarette rolling machines, wear and tear on the fabric belt and changes in tension pressure can cause slippage, leading to problems such as cigarette strip slippage, paper jams, and cigarette quality issues. Furthermore, there is a lack of full-process monitoring methods.

Method used

Dark-colored markers are applied to the conveyor belt, and photoelectric sensors are used to detect these markers. By calculating the conveyor belt's running speed and combining this with a PLC controller and alarm device, the system monitors in real time whether the conveyor belt is slipping. The belt tensioning wheel is used to increase friction and prevent slipping.

Benefits of technology

It enables precise monitoring of belt slippage, improves production efficiency, reduces manual inspection costs, ensures cigarette quality, and prevents relative slippage between the belt and the belt pulley.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a cigarette making machine cloth belt slip monitoring device and cigarette making machine, including cloth belt wheel, first back-up roll, second back-up roll, photoelectric sensor and drive component, cloth belt passes through cloth belt wheel, first back-up roll and second back-up roll in proper order, cloth belt wheel is installed on the drive component, cloth belt is fit with cloth belt tensioning wheel, the cloth belt tensioning wheel is installed on the drive component. The cloth belt tensioning wheel and the second supporting roller or the cloth belt wheel are arranged in a spaced mode, a plurality of dark color mark points at the same intervals are evenly distributed on the outer side of the cloth belt, an adjusting installation frame is arranged on the side, close to the first supporting roller, of the cloth belt wheel, and the adjusting installation frame is located on the outer side of the cloth belt and arranged in the circumferential direction of the cloth belt wheel. The photoelectric sensor is installed on the adjusting installation frame and detects the dark color mark points moving along with the cloth belt. By accurately monitoring the running linear speed of the cotton tape of the cigarette making machine, the slipping phenomenon of the cotton tape can be quickly and accurately found.
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Description

Technical Field

[0001] This utility model belongs to the technical field of cigarette manufacturing equipment, and in particular relates to a cigarette machine belt slippage monitoring device and a cigarette machine. Background Technology

[0002] The cigarette tube's conveyor belt carries the cigarette paper and tobacco sticks through the tube and participates in the entire cigarette forming process. In actual production, belt wear and variations in tension can cause slippage. When slippage occurs, problems such as stick slippage, paper jams, and misalignment at the compaction end can arise during production, affecting both equipment efficiency and cigarette quality. Currently, cigarette manufacturers check the belt tension and replace the belt periodically to prevent slippage. However, this approach is somewhat indiscriminate and fails to provide comprehensive process monitoring. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, this utility model provides a cigarette machine belt slippage monitoring device and cigarette machine, which aims to quickly and accurately detect the phenomenon of belt slippage by accurately monitoring the linear speed of the cigarette machine belt.

[0004] The technical solution provided by this utility model is as follows:

[0005] This utility model provides a cigarette machine belt slippage monitoring device, including a belt pulley, a first support roller, a second support roller, a photoelectric sensor, and a drive assembly. The belt passes sequentially around the belt pulley, the first support roller, and the second support roller. The belt pulley is mounted on the drive assembly. A belt tensioning pulley is attached to the belt, and the belt tensioning pulley is spaced apart from the second support roller or the belt pulley. Several dark-colored markings with the same spacing are evenly distributed on the outer side of the belt. An adjustment mounting frame is provided on the side of the belt pulley near the first support roller. The adjustment mounting frame is located on the outer side of the belt and is arranged circumferentially along the belt pulley. The photoelectric sensor is mounted on the adjustment mounting frame and detects the dark-colored markings that move with the belt.

[0006] Furthermore, it also includes a PLC controller, the drive component is a servo motor or a main motor, and the PLC controller and photoelectric sensor are electrically connected.

[0007] Furthermore, it also includes an alarm device, wherein the PLC controller is signal-connected to the alarm device and controls the alarm device to sound an alarm when the ratio is greater than a set threshold.

[0008] Furthermore, the alarm device includes: an audible and visual logic controller, an LED indicator, and an alarm; the input terminal of the audible and visual logic controller is connected to the output terminal of the PLC controller, and the output terminal of the audible and visual logic controller is connected to the LED indicator and the alarm signal respectively.

[0009] Furthermore, the alarm device includes at least one of the following: a buzzer, an audible and visual alarm, and a horn.

[0010] Furthermore, the dark markings are either dot marks made on the tape using ink provided by the ink cartridge or marks printed during tape production.

[0011] Furthermore, the belt tensioning wheel is provided in two sets, which are respectively attached to the inner and outer sides of the belt. The outer belt tensioning wheel is spaced apart from the belt wheel, and the inner belt tensioning wheel is spaced apart from the second support roller.

[0012] This utility model also provides a cigarette rolling machine, including the cigarette rolling machine belt slippage monitoring device described in any of the above claims.

[0013] Beneficial effects

[0014] This invention improves production efficiency and reduces manual inspection costs by marking dark dots on the conveyor belt and detecting these dots using photoelectric sensors. The system calculates the conveyor belt speed based on the number of dots detected per unit time, thus monitoring for belt slippage in real time. A tensioning wheel increases the pressure between the conveyor belt and the pulley, thereby increasing friction and preventing relative slippage. Furthermore, the optimized sensor detection angle through adjustable mounting bracket design ensures accurate dot identification.

[0015] This invention involves marking the original cigarette machine's belt at regular intervals with ink provided by an ink cartridge (or using a custom-made special belt). At the same time, a photoelectric sensor is installed near the belt pulley to detect the markings on the belt. By accurately monitoring the linear speed of the cigarette machine's belt, the invention can quickly and accurately detect belt slippage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a cigarette machine belt slippage monitoring device according to the present invention.

[0017] Explanation of reference numerals in the attached diagram: 1. Fabric belt; 2. Photoelectric sensor; 3. Fabric belt pulley; 4. Fabric belt marker point. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model 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 this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0021] Example 1

[0022] like Figure 1 As shown, this utility model embodiment provides a cigarette machine belt slippage monitoring device, including a belt pulley 3, a first support roller 5-1, a second support roller 5-2, a photoelectric sensor 2, and a drive assembly. The belt 1 passes sequentially around the belt pulley 3, the first support roller 5-1, and the second support roller 5-2. The belt pulley 3 is mounted on the drive assembly. The belt 1 is attached to a belt tensioning wheel, and the belt tensioning wheel is spaced apart from the second support roller 5-2 or the belt pulley. The outer side of the belt 1 is provided with evenly distributed dark-colored markings. The belt pulley 3 is provided with an adjustment mounting frame on the side near the first support roller 5-1. The adjustment mounting frame is located on the outer side of the belt 1 and is arranged circumferentially along the belt pulley 3. The photoelectric sensor 2 is mounted on the adjustment mounting frame and detects the dark-colored markings that move with the belt.

[0023] This invention improves production efficiency and reduces manual inspection costs by marking dark dots on the conveyor belt and detecting these dots using photoelectric sensors. The system calculates the conveyor belt speed based on the number of dots detected per unit time, thus monitoring for belt slippage in real time. A tensioning wheel increases the pressure between the conveyor belt and the pulley, thereby increasing friction and preventing relative slippage. Furthermore, the optimized sensor detection angle through adjustable mounting bracket design ensures accurate dot identification.

[0024] Example 2

[0025] like Figure 1 As shown, this utility model embodiment provides a cigarette machine belt slippage monitoring device, including a belt pulley 3, a first support roller 5-1, a second support roller 5-2, and a photoelectric sensor 2. The belt 1 is wound around the belt pulley, the first support roller, and the second support roller to form a belt conveyor track. A belt tensioning wheel is attached to the belt, and the belt tensioning wheel is spaced apart from the second support roller 5-2 or the belt pulley 3. Specifically, there are two sets of belt tensioning wheels, one attached to the inner side and one to the outer side of the belt 1. The outer belt tensioning wheel is spaced apart from the belt pulley 3, and the inner belt tensioning wheel is spaced apart from the belt pulley 3. The second support roller 5-2 is spaced apart. The belt pulley 3 rotates under the drive of a servo motor. Several dark marking dots with the same spacing, namely belt marking dots 4, are evenly distributed on the outer side of the belt (these dark marking dots are dot marks made on the belt using ink provided by the ink cartridge). An adjustment mounting bracket is provided on the side of the belt pulley 3 near the first support roller 5-2. The adjustment mounting bracket is located on the outer side of the belt 1 and is arranged around the belt pulley 3. The photoelectric sensor 2 is installed on the adjustment mounting bracket and detects the dark marking dots that move with the belt 1.

[0026] In this embodiment, a PLC controller is also included. The drive component is a servo motor or a main motor. The PLC controller and the photoelectric sensor 2 are electrically connected.

[0027] In this embodiment, an alarm device is also included. The PLC controller is signal-connected to the alarm device and controls the alarm device to sound an alarm when the ratio is greater than a set threshold. This data processing process is existing technology.

[0028] In this embodiment, the alarm device includes: an audio-visual logic controller, an LED indicator, and an alarm; the input terminal of the audio-visual logic controller is connected to the output terminal of the PLC controller, and the output terminal of the audio-visual logic controller is connected to the LED indicator and the alarm signal respectively.

[0029] In this embodiment, the alarm device includes at least one of the following: a buzzer, an audible and visual alarm, and a horn.

[0030] In this embodiment, the dark markings are dots made on the tape 1 using ink provided by the ink cartridge or markings printed during tape production.

[0031] This invention involves marking the original cigarette rolling machine's belt at regular intervals with ink provided by an ink cartridge (or using a custom-made special belt). At the same time, a photoelectric sensor is installed near the belt pulley to detect the markings on the belt. The number of markings detected per unit time is converted into the belt's running speed. The belt's running speed is compared with the cigarette production speed per unit time to determine if the belt is slipping.

[0032] Specific implementation process of this utility model:

[0033] (1) Calculate the linear velocity of the fabric tape

[0034] Some markers are evenly applied to the fabric belt 1, with a distance S between adjacent markers 4. A photoelectric sensor 2 is installed near the belt pulley 3 to detect the markers 4 and record the number of markers detected per unit time T. Then, the linear velocity of the fabric belt at this unit time point is V = number × S / T.

[0035] (2) Calculate the linear velocity of the smoke branch and determine slippage.

[0036] The number of cigarettes produced per unit time T is counted as number1. The length D of each cigarette remains constant during production. Therefore, the linear velocity of the cigarettes per unit time is V1 = number1 × D / T. The slippage coefficient K is calculated as V1 / V. When K increases to a certain threshold, it is determined that the conveyor belt is slipping, and the alarm device will sound.

[0037] Example 3

[0038] This utility model provides a cigarette rolling machine, including the cigarette rolling machine belt slippage monitoring device described in embodiment 2.

[0039] The above description is merely a preferred embodiment of this utility model and does not constitute any limitation on this utility model. Any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model, or modify it into equivalent embodiments, without departing from the scope of the technical solution of this utility model. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technology of this utility model without departing from the scope of the technical solution of this utility model shall fall within the protection scope of this technical solution.

Claims

1. A device for monitoring slippage of the conveyor belt in a cigarette rolling machine, characterized in that, The device includes a belt pulley, a first support roller, a second support roller, a photoelectric sensor, and a drive assembly. The belt passes sequentially around the belt pulley, the first support roller, and the second support roller. The belt pulley is mounted on the drive assembly. A belt tensioning wheel is attached to the belt, and the belt tensioning wheel is spaced apart from the second support roller or the belt pulley. Several dark-colored markings with the same spacing are evenly distributed on the outer side of the belt. An adjustment mounting frame is provided on the side of the belt pulley near the first support roller. The adjustment mounting frame is located on the outer side of the belt and is arranged circumferentially along the belt pulley. The photoelectric sensor is mounted on the adjustment mounting frame and detects the dark-colored markings that move with the belt.

2. The cigarette machine conveyor belt slippage monitoring device according to claim 1, characterized in that, It also includes a PLC controller, the drive component is a servo motor or a main motor, and the PLC controller is electrically connected to the photoelectric sensor.

3. The cigarette machine conveyor belt slippage monitoring device according to claim 2, characterized in that, It also includes an alarm device, the PLC controller is connected to the alarm device by a signal, and controls the alarm device to sound an alarm when the ratio is greater than a set threshold.

4. The cigarette machine conveyor belt slippage monitoring device according to claim 3, characterized in that, The alarm device includes: an audible and visual logic controller, an LED indicator, and an alarm; the input terminal of the audible and visual logic controller is connected to the output terminal of the PLC controller, and the output terminal of the audible and visual logic controller is connected to the LED indicator and the alarm signal respectively.

5. The cigarette machine conveyor belt slippage monitoring device according to claim 4, characterized in that, The alarm device includes at least one of the following: a buzzer, an audible and visual alarm, and a horn.

6. The cigarette machine conveyor belt slippage monitoring device according to claim 1, characterized in that, The dark markings are either dots made on the tape using ink provided by the ink cartridge or marks printed during tape production.

7. The cigarette machine conveyor belt slippage monitoring device according to claim 1, characterized in that, The belt tensioning rollers are provided in two sets, which are respectively attached to the inner and outer sides of the belt. The outer belt tensioning roller is spaced apart from the belt roller, and the inner belt tensioning roller is spaced apart from the second support roller.

8. A cigarette rolling machine, characterized in that, Includes the cigarette machine belt slippage monitoring device according to any one of claims 1-7.