Defective cigarette recovery method, cigarette making machine and defective cigarette recovery system

Abstract

The invention discloses a defective cigarette recycling method, a cigarette making machine and a defective cigarette recycling system, and relates to the technical field of cigarette production. The method is applied to the cigarette making machine comprising a recovery belt, a control motor, a frequency converter and a defective cigarette collecting box, the recovery belt is used for conveying defective cigarettes to the defective cigarette collecting box, the control motor is used for controlling operation of the recovery belt, and the frequency converter is used for controlling operation of the control motor. Comprising the steps that the cigarette production speed of a cigarette making machine and the defective cigarette removing speed are obtained, and the maximum theoretical defective cigarette removing speed is calculated according to the cigarette production speed; when it is determined that the rejection speed is larger than the maximum theoretical rejection speed, the operation frequency of a frequency converter is calculated according to the cigarette production speed, the operation frequency of the frequency converter is increased by a first preset proportion, and the target operation frequency of the frequency converter is obtained; and the control frequency converter operates based on the target operation frequency so as to control the control motor to drive the recovery belt to operate to convey the defective cigarettes to the defective cigarette collection box.

Description

Technical Field

[0001] The present invention relates to the field of cigarette production technology, and in particular to a method, cigarette rolling machine and defective cigarette recycling system for recycling defective cigarettes. Background Technology

[0002] Removing defective cigarettes from cigarette machines is a necessary step in the cigarette production process. By removing defective cigarettes, the pass rate of cigarette production can be improved, and the tobacco shreds in the defective cigarettes can be recycled.

[0003] In the prior art, the motor speed of the recovery belt used to transport defective cigarettes in the cigarette rolling machine is a fixed value. When the number of defective cigarettes suddenly increases, the recovery belt is prone to blockage, causing the cigarette rolling machine to stop.

[0004] Therefore, this application proposes a method for recovering defective cigarettes to avoid the cigarette machine from stopping due to defective cigarettes clogging the recovery belt. Summary of the Invention

[0005] This invention provides a method, a cigarette rolling machine, and a defective cigarette recycling system for recycling defective cigarettes, which achieves the recycling of defective cigarettes without clogging the cigarette rolling machine.

[0006] In a first aspect, embodiments of the present invention provide a method for recovering defective cigarettes, applied to a cigarette rolling machine including a recovery belt, a control motor, a frequency converter, and a defective cigarette collection box. The recovery belt is used to transport defective cigarettes to the defective cigarette collection box, the control motor is used to control the operation of the recovery belt, and the frequency converter is used to control the operation of the control motor. The method includes: The cigarette production speed and defective cigarette rejection speed of the cigarette machine are obtained, and the maximum theoretical rejection speed of the defective cigarettes is calculated based on the cigarette production speed. When it is determined that the rejection speed is greater than the maximum theoretical rejection speed, the operating frequency of the frequency converter is calculated based on the cigarette production speed, and the operating frequency of the frequency converter is increased by a first preset ratio to obtain the target operating frequency of the frequency converter. The frequency converter is controlled to operate based on the target operating frequency, thereby controlling the control motor to drive the recycling belt to transport the defective cigarettes to the defective cigarette collection box.

[0007] The technical solution of this invention provides a method for recovering defective cigarettes, applied to a cigarette rolling machine including a recovery belt, a control motor, a frequency converter, and a defective cigarette collection box. The recovery belt is used to transport defective cigarettes to the defective cigarette collection box, the control motor is used to control the operation of the recovery belt, and the frequency converter is used to control the operation of the control motor. The method includes: obtaining the cigarette production speed and the defective cigarette rejection speed of the cigarette rolling machine; calculating the maximum theoretical rejection speed of the defective cigarettes based on the cigarette production speed; if it is determined that the rejection speed is greater than the maximum theoretical rejection speed, calculating the operating frequency of the frequency converter based on the cigarette production speed, and increasing the operating frequency of the frequency converter by a first preset ratio to obtain the target operating frequency of the frequency converter; controlling the frequency converter to operate based on the target operating frequency, so as to control the control motor to drive the recovery belt to transport the defective cigarettes to the defective cigarette collection box. The above technical solution first obtains the cigarette production speed and defective cigarette rejection speed of the cigarette machine. Then, it calculates the maximum theoretical rejection speed of defective cigarettes based on the cigarette production speed. If the rejection speed is greater than the maximum theoretical rejection speed, to avoid clogging of the cigarette machine, the operating frequency of the frequency converter can be calculated based on the cigarette production speed, and the operating frequency of the frequency converter can be increased by a preset ratio to obtain the target operating frequency of the frequency converter. Then, the frequency converter can be controlled to operate based on the target operating frequency to control the motor to drive the recycling belt, thereby increasing the operating speed of the recycling belt and enabling more defective cigarettes to be transported to the defective cigarette collection box without causing clogging of the cigarette machine.

[0008] Further, the maximum theoretical rejection rate of the defective cigarettes is calculated based on the cigarette production speed, including: The maximum theoretical rejection rate of defective cigarettes is calculated based on the cigarette production speed and the maximum rejection ratio of defective cigarettes.

[0009] Further, calculating the operating frequency of the frequency converter based on the cigarette production speed includes: Based on the correspondence between cigarette production speed and the operating frequency of the frequency converter, the operating frequency corresponding to the cigarette production speed is determined.

[0010] Further, the recycling belt includes a first belt and a second belt, and the control motor includes a first motor for controlling the first belt and a second motor for controlling the second belt. Correspondingly, controlling the frequency converter to operate based on the target operating frequency, so as to control the control motor to drive the recycling belt to transport the defective cigarettes to the defective cigarette collection box, includes: The inverter is controlled to operate based on the target operating frequency, thereby controlling the first motor to drive the first belt to transport the defective cigarette to the second belt, and controlling the second motor to drive the second belt to transport the defective cigarette to the defective cigarette collection box.

[0011] Furthermore, the operating speed of the second motor is in a second preset ratio to the operating speed of the first motor.

[0012] Furthermore, the cigarette rolling machine also includes a level detector and a first alarm module disposed above the defective cigarette collection box; correspondingly, the method further includes: The level of defective cigarettes in the defective cigarette collection box is detected based on the level detector. If it is determined that the level of the defective cigarette exceeds the preset level, an alarm is triggered based on the first alarm module.

[0013] Furthermore, the cigarette rolling machine also includes a temperature detector and a second alarm module disposed above the defective cigarette collection box; correspondingly, the method further includes: The temperature detector is used to detect the temperature of defective cigarettes inside the defective cigarette collection box. If the temperature of the defective cigarette exceeds the preset temperature, an alarm is triggered based on the second alarm module.

[0014] In a second aspect, embodiments of the present invention also provide a cigarette rolling machine, comprising: one or more controllers; a storage device for storing one or more programs; and further comprising a recycling belt, a control motor, a frequency converter, and a defective cigarette collection box; the recycling belt is used to transport defective cigarettes to the defective cigarette collection box, the control motor is used to control the operation of the recycling belt, and the frequency converter is used to control the operation of the control motor; when the one or more programs are executed by the one or more processors, the one or more processors implement the defective cigarette recycling method as described in any of the first aspects.

[0015] Thirdly, embodiments of the present invention also provide a defective cigarette recycling system, comprising: an industrial control computer and the cigarette rolling machine described in the second aspect, wherein the industrial control computer is used to monitor the operating status of the cigarette rolling machine.

[0016] Furthermore, the cigarette rolling machine is used to send information indicating that the defective cigarettes in the defective cigarette collection box exceed a preset level to the industrial control computer when it is determined that the temperature of the defective cigarettes in the defective cigarette collection box exceeds a preset temperature, and to send information indicating that the temperature exceeds a preset temperature to the industrial control computer when it is determined that the temperature of the defective cigarettes in the defective cigarette collection box exceeds a preset temperature; the industrial control computer is used to display the information indicating that the defective cigarettes exceed a preset level on a preset interface when it receives the information indicating that the defective cigarettes exceed a preset level, and to display the information indicating that the temperature exceeds a preset temperature on a preset interface when it receives the information indicating that the temperature exceeds a preset temperature.

[0017] The descriptions of the second and third aspects in this application can be referred to the detailed description of the first aspect; and the beneficial effects of the descriptions of the second and third aspects can be referred to the analysis of the beneficial effects of the first aspect, which will not be repeated here.

[0018] These or other aspects of this application will become more readily apparent in the following description. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A flowchart of a defective cigarette recycling method provided in an embodiment of the present invention; Figure 2 A flowchart of another defective cigarette recycling method provided in an embodiment of the present invention; Figure 3 This is a partial schematic diagram of a cigarette rolling machine; Figure 4 This is a schematic diagram of a defective cigarette recycling system provided in an embodiment of the present invention. Detailed Implementation

[0021] 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 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, and not all of the structures.

[0022] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0023] The terms "first" and "second," etc., used in the specification and drawings of this application are used to distinguish different objects or to distinguish different treatments of the same object, rather than to describe a specific order of objects.

[0024] Furthermore, the terms "comprising" and "having," and any variations thereof, used in the description of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include other steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0025] Before discussing the exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe the operations (or steps) as sequential processes, many of these operations can be performed in parallel, concurrently, or simultaneously. Furthermore, the order of the operations can be rearranged. The process can be terminated when its operation is completed, but may also have additional steps not included in the figures. The process can correspond to a method, function, procedure, subroutine, subroutine, etc. Moreover, without conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0026] It should be noted that in the embodiments of this application, the words "exemplary" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of the words "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0027] In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0028] Figure 1 This is a flowchart of a defective cigarette recycling method provided by an embodiment of the present invention. This embodiment is applicable to situations where defective cigarettes need to be removed. The method can be applied to a cigarette rolling machine including a recycling belt, a control motor, a frequency converter, and a defective cigarette collection box. The recycling belt is used to transport defective cigarettes to the defective cigarette collection box, the control motor is used to control the operation of the recycling belt, and the frequency converter is used to control the operation of the control motor. Figure 1 As shown, the specific steps include the following: Step 110: Obtain the cigarette production speed and defective cigarette rejection speed of the cigarette machine, and calculate the maximum theoretical rejection speed of the defective cigarette based on the cigarette production speed.

[0029] The cigarette production speed of a cigarette rolling machine can be understood as the total number of cigarettes produced per unit time. The maximum cigarette production speed of a cigarette rolling machine is usually related to the model of the cigarette rolling machine.

[0030] Defective cigarettes can be understood as cigarettes with empty ends, missing filters, leaks, or excessive weight. When the cigarette rolling machine is running, defective cigarettes can be centrally removed by a high-speed removal valve below the cigarette removal drum. The removed defective cigarettes fall onto the recovery belt. The removal speed of defective cigarettes can be understood as the total number of cigarettes removed per unit time.

[0031] Specifically, during cigarette rolling machine operation, the cigarette production speed can be determined based on the linear speed of the conveyor belt and the cigarette length. More specifically, the ratio of the linear speed of the conveyor belt to the cigarette length can be used to determine the cigarette production speed. When the unit for linear speed is meters per minute (m / min) and the unit for cigarette length is meters (m), the unit for cigarette production speed can be determined as cigarettes per minute (c / min). For example, the cigarette production speed can be determined to be 16,000 cigarettes per minute.

[0032] Each cigarette is labeled with a quality tag as it passes the inspection wheel of the cigarette rolling machine. When a cigarette with a defective quality tag passes the rejection position, it can be rejected using a rejection valve. Therefore, the rejection rate of defective cigarettes can be determined based on the total number of cigarettes rejected per unit time.

[0033] The recovery belt is used to transport defective cigarettes to the defective cigarette collection box. The maximum theoretical rejection rate of defective cigarettes is preset based on the cigarette production speed. Typically, the ratio of the maximum theoretical rejection rate to the cigarette production speed is 1:100. For example, when the cigarette production speed is 16,000 cigarettes / min, the maximum theoretical rejection rate can be determined to be 160 cigarettes / min. With a statistical period of 10 seconds, the maximum rejection rate is 26.7 cigarettes / 10 seconds. The current operating speed of the recovery belt only supports the rejection of defective cigarettes with a rejection rate less than 26.7 cigarettes / 10 seconds. If the rejection rate exceeds 26.7 cigarettes / 10 seconds, it may cause blockage of the cigarette rolling machine. In this embodiment of the invention, the cigarette production speed of the cigarette rolling machine is determined by monitoring the conveyor belt, the rejection rate of defective cigarettes is determined by counting the defective cigarettes rejected by the rejection valve, and the maximum theoretical rejection rate of defective cigarettes is determined based on the cigarette production speed.

[0034] Step 120: If the rejection speed is greater than the maximum theoretical rejection speed, calculate the operating frequency of the frequency converter based on the cigarette production speed, and increase the operating frequency of the frequency converter by a first preset ratio to obtain the target operating frequency of the frequency converter.

[0035] The frequency converter is used to adjust the operating efficiency of the control motor corresponding to the recycling belt in the cigarette machine, thereby controlling the running speed of the recycling belt.

[0036] Specifically, there is a definite proportional relationship between the cigarette production speed and the inverter's operating frequency. If the defective cigarette rejection speed does not exceed the maximum theoretical rejection speed, the inverter's operating frequency corresponding to the cigarette production speed can be determined based on the cigarette production speed and the relationship between the two. If the defective cigarette rejection speed exceeds the maximum theoretical rejection speed, and the inverter continues to operate at its original frequency to drive the recovery belt to transport the defective cigarettes, it will lead to untimely transport of defective cigarettes, resulting in blockage of the cigarette rolling machine. Therefore, if the defective cigarette rejection speed exceeds the maximum theoretical rejection speed, the inverter's operating frequency can be increased to increase the control motor's operating speed, thereby increasing the recovery belt's operating speed. Specifically, firstly, the inverter's operating frequency corresponding to the cigarette production speed can be determined based on the relationship between the cigarette production speed and the inverter's operating frequency. Then, the inverter's operating frequency can be increased by a first preset proportion to obtain the inverter's target operating frequency. In this embodiment of the invention, when the rejection speed is determined to be greater than the maximum theoretical rejection speed, the operating frequency of the frequency converter is increased to the target operating frequency to provide a power basis for adjusting the operation of the recycling belt.

[0037] Step 130: Control the frequency converter to operate based on the target operating frequency, so as to control the control motor to drive the recycling belt to transport the defective cigarettes to the defective cigarette collection box.

[0038] Specifically, the frequency converter can be controlled to operate based on the target operating frequency, thereby controlling the operation of the motor. The operation of the motor can drive the recycling belt, thereby increasing the speed of the recycling belt and enabling more defective cigarettes to be transported to the defective cigarette collection box without causing blockage in the cigarette rolling machine.

[0039] In this embodiment of the invention, by controlling the frequency converter to operate based on the target operating frequency, the control motor is controlled, which in turn drives the recycling belt to operate, so as to transport defective cigarettes to the defective cigarette collection box without causing blockage of the cigarette rolling machine.

[0040] The defective cigarette recycling method provided in this invention is applied to a cigarette rolling machine including a recycling belt, a control motor, a frequency converter, and a defective cigarette collection box. The recycling belt is used to transport defective cigarettes to the defective cigarette collection box, the control motor is used to control the operation of the recycling belt, and the frequency converter is used to control the operation of the control motor. The method includes: obtaining the cigarette production speed and the defective cigarette rejection speed of the cigarette rolling machine; calculating the maximum theoretical rejection speed of the defective cigarettes based on the cigarette production speed; if it is determined that the rejection speed is greater than the maximum theoretical rejection speed, calculating the operating frequency of the frequency converter based on the cigarette production speed, and increasing the operating frequency of the frequency converter by a preset ratio to obtain the target operating frequency of the frequency converter; controlling the frequency converter to operate based on the target operating frequency, so as to control the control motor to drive the recycling belt to transport the defective cigarettes to the defective cigarette collection box. The above technical solution first obtains the cigarette production speed and defective cigarette rejection speed of the cigarette machine. Then, it calculates the maximum theoretical rejection speed of defective cigarettes based on the cigarette production speed. If the rejection speed is greater than the maximum theoretical rejection speed, to avoid clogging of the cigarette machine, the operating frequency of the frequency converter can be calculated based on the cigarette production speed, and the operating frequency of the frequency converter can be increased by a preset ratio to obtain the target operating frequency of the frequency converter. Then, the frequency converter can be controlled to operate based on the target operating frequency to control the motor to drive the recycling belt, thereby increasing the operating speed of the recycling belt and enabling more defective cigarettes to be transported to the defective cigarette collection box without causing clogging of the cigarette machine.

[0041] Figure 2 This is a flowchart illustrating another method for recovering defective cigarettes according to an embodiment of the present invention. This embodiment is a specific modification based on the above embodiments. Figure 2 As shown, in this embodiment, the method may further include: Step 210: Obtain the cigarette production speed and defective cigarette rejection speed of the cigarette machine, and calculate the maximum theoretical rejection speed of the defective cigarette based on the cigarette production speed.

[0042] In one embodiment, calculating the maximum theoretical rejection rate of defective cigarettes based on the cigarette production speed includes: The maximum theoretical rejection rate of defective cigarettes is calculated based on the cigarette production speed and the maximum rejection ratio of defective cigarettes.

[0043] Specifically, the ratio of the maximum theoretical rejection rate to the cigarette production rate is typically 1:100. For example, when the cigarette production rate is 16,000 cigarettes / min, the maximum theoretical rejection rate can be determined to be 160 cigarettes / min. With a statistical period of 10 seconds, the maximum rejection rate is 26.7 cigarettes / 10 seconds. The current operating speed of the recovery belt only supports the rejection of defective cigarettes with a rejection rate less than 26.7 cigarettes / 10 seconds. If the rejection rate exceeds 26.7 cigarettes / 10 seconds, it may cause the cigarette rolling machine to become clogged.

[0044] Step 220: If the rejection speed is greater than the maximum theoretical rejection speed, calculate the operating frequency of the frequency converter based on the cigarette production speed, and increase the operating frequency of the frequency converter by a first preset ratio to obtain the target operating frequency of the frequency converter.

[0045] In one embodiment, calculating the operating frequency of the frequency converter based on the cigarette production speed includes: Based on the correspondence between cigarette production speed and the operating frequency of the frequency converter, the operating frequency corresponding to the cigarette production speed is determined.

[0046] Specifically, there is a definite proportional relationship between the cigarette production speed and the inverter's operating frequency. Given that the defective cigarette rejection speed is greater than the maximum theoretical rejection speed, the inverter's operating frequency corresponding to the cigarette production speed can first be determined based on the cigarette production speed and the relationship between the cigarette production speed and the inverter's operating frequency. Then, the inverter's operating frequency can be increased by a preset percentage to obtain the inverter's target operating frequency. By increasing the inverter's operating frequency by a first preset percentage, the operating efficiency of the control motor can be improved, thereby increasing the speed of the recovery belt. Specifically, the inverter's operating frequency can be increased by a preset percentage; when the preset percentage is 20%, the inverter's operating frequency can be increased by 20% to obtain the inverter's target operating frequency.

[0047] In practical applications, if the rejection rate of defective cigarettes does not exceed the maximum theoretical rejection rate, the operating frequency of the frequency converter corresponding to the cigarette production speed can be determined based on the cigarette production speed and the correspondence between the cigarette production speed and the operating frequency of the frequency converter, and this operating frequency can be determined as the target operating frequency.

[0048] In this embodiment of the invention, the operating frequency of the inverter required to prevent the cigarette rolling machine from clogging when removing defective cigarettes is calculated based on the cigarette production speed, thus providing a power basis for adjusting the operation of the recycling belt.

[0049] Step 230: Control the frequency converter to operate based on the target operating frequency, so as to control the control motor to drive the recycling belt to transport the defective cigarettes to the defective cigarette collection box.

[0050] In one embodiment, the recycling belt includes a first belt and a second belt, and the control motor includes a first motor for controlling the first belt and a second motor for controlling the second belt. Accordingly, step 230 may specifically include: The inverter is controlled to operate based on the target operating frequency, thereby controlling the first motor to drive the first belt to transport the defective cigarette to the second belt, and controlling the second motor to drive the second belt to transport the defective cigarette to the defective cigarette collection box.

[0051] The operating speed of the second motor is in a second preset ratio to the operating speed of the first motor.

[0052] Figure 3 This is a partial schematic diagram of a cigarette rolling machine, such as... Figure 3 As shown, a first belt is installed below the defective cigarette rejection drum, a first motor M1 is installed below the first belt, a second belt is installed on one side of the first belt, and a second motor M2 is installed below the second belt. After the defective cigarette falls from the defective cigarette rejection drum onto the first belt, the first belt can transport the defective cigarette to the second belt, and the second belt can transport the defective cigarette to the defective cigarette collection box.

[0053] Specifically, the inverter can be controlled to operate based on the target operating frequency, thereby controlling the first motor to drive the first belt to transport the defective cigarettes to the second belt, and the second motor to drive the second belt to transport the defective cigarettes to the defective cigarette collection box.

[0054] In practical applications, the frequency converter may include a first frequency converter for controlling a first motor and a second frequency converter for controlling a second motor. The first frequency converter can be controlled to operate based on a target operating frequency, so as to control the first motor to drive the first belt to transport the defective cigarette to the second belt.

[0055] Since the operating speed of the second motor is in a second preset ratio to the operating speed of the first motor, it can be deduced that the operating frequency of the second frequency converter is also in a second preset ratio to the operating frequency of the first frequency converter. When the first frequency converter operates at the target operating frequency, the corresponding operating frequency of the second frequency converter can be determined according to the second preset ratio. Controlling the first frequency converter to operate at the target operating frequency controls the first motor to drive the first belt, transporting defective cigarettes to the second belt. Controlling the second frequency converter to operate at the corresponding operating frequency controls the second motor to drive the second belt, transporting defective cigarettes to the defective cigarette collection box. This increases the operating speed of both the first and second belts, allowing more defective cigarettes to be transported to the defective cigarette collection box without causing blockages in the cigarette rolling machine.

[0056] In this embodiment of the invention, by controlling the frequency converter to operate based on the target operating frequency, the control motor is controlled, which in turn drives the recycling belt to operate, so as to transport defective cigarettes to the defective cigarette collection box without causing blockage of the cigarette rolling machine.

[0057] Step 240: Detect the level of defective cigarettes in the defective cigarette collection box based on the level detector installed above the defective cigarette collection box; if it is determined that the level of defective cigarettes exceeds the preset level, trigger an alarm based on the first alarm module.

[0058] The material level detector can be a laser detector, which can be installed above the defective cigarette collection box to detect the level of defective cigarettes inside the collection box. Figure 3 As shown, B1 is the level detector. The first alarm module can be installed on one side of the level detector to provide an early warning when the level exceeds the limit.

[0059] Specifically, the defective cigarette level in the defective cigarette collection box is obtained based on the level detector. If the defective cigarette level exceeds the preset level, an alarm can be triggered based on the first alarm module. In practical applications, the first alarm module can be an audible and visual alarm module. Therefore, if the defective cigarette level exceeds the preset level, a specific sound and light can be emitted by the audible and visual alarm module to trigger an alarm indicating that the level has exceeded the preset level.

[0060] In this embodiment of the invention, a material level detector installed above the defective cigarette collection box enables rapid determination of the defective cigarette material level in the collection box. Furthermore, if the defective cigarette material level exceeds a preset level, a first alarm module provides timely alarm for the excess material level, thereby improving the safety of the cigarette machine operation.

[0061] Step 250: The temperature of the defective cigarettes inside the defective cigarette collection box is detected by a temperature detector installed above the defective cigarette collection box; if the temperature of the defective cigarettes exceeds the preset temperature, an alarm is triggered based on the second alarm module.

[0062] The temperature detector can also be installed above the defective cigarette collection box to detect the temperature of the defective cigarettes inside the box. Figure 3 As shown, B2 is the temperature detector. A second alarm module can be installed on one side of the temperature detector to provide an early warning when the temperature exceeds the limit.

[0063] Specifically, the temperature of defective cigarettes inside the defective cigarette collection box is obtained based on a temperature detector. If the temperature of the defective cigarettes inside the collection box exceeds a preset temperature, a temperature over-limit alarm can be triggered based on a second alarm module. In practical applications, the second alarm module can also be an audible and visual alarm module. Therefore, if the temperature of the defective cigarettes inside the collection box exceeds the preset temperature, a specific sound and light can be emitted by the audible and visual alarm module to trigger a temperature over-limit alarm.

[0064] In this embodiment of the invention, a temperature detector installed above the defective cigarette collection box enables rapid determination of the temperature of defective cigarettes inside the collection box. Furthermore, if the temperature of defective cigarettes inside the collection box exceeds a preset temperature, a second alarm module provides timely alarm for the temperature exceeding the preset temperature, thereby improving the safety of the cigarette machine operation.

[0065] The defective cigarette recycling method provided in this invention includes: an application to a cigarette rolling machine comprising a recycling belt, a control motor, a frequency converter, and a defective cigarette collection box; the recycling belt being used to transport defective cigarettes to the defective cigarette collection box; the control motor being used to control the operation of the recycling belt; and the frequency converter being used to control the operation of the control motor. The method includes: acquiring the cigarette production speed and the defective cigarette rejection speed of the cigarette rolling machine; calculating the maximum theoretical rejection speed of the defective cigarettes based on the cigarette production speed; and, if it is determined that the rejection speed is greater than the maximum theoretical rejection speed, calculating the operating frequency of the frequency converter based on the cigarette production speed, and setting the operating frequency of the frequency converter accordingly. The inverter is increased by a first preset ratio to obtain the target operating frequency of the inverter; the inverter is controlled to operate based on the target operating frequency, so as to control the control motor to drive the recycling belt to transport the defective cigarettes to the defective cigarette collection box; the level of defective cigarettes in the defective cigarette collection box is detected by a level detector set above the defective cigarette collection box; if the level of defective cigarettes exceeds the preset level, an alarm is triggered based on a first alarm module; the temperature of defective cigarettes in the defective cigarette collection box is detected by a temperature detector set above the defective cigarette collection box; if the temperature of defective cigarettes exceeds the preset temperature, an alarm is triggered based on a second alarm module. The above technical solution first obtains the cigarette production speed and defective cigarette rejection speed of the cigarette machine. Then, it calculates the maximum theoretical rejection speed of defective cigarettes based on the cigarette production speed. If the rejection speed is greater than the maximum theoretical rejection speed, to avoid clogging of the cigarette machine, the operating frequency of the frequency converter can be calculated based on the cigarette production speed, and the operating frequency of the frequency converter can be increased by a preset ratio to obtain the target operating frequency of the frequency converter. Then, the frequency converter can be controlled to operate based on the target operating frequency to control the motor to drive the recycling belt, thereby increasing the operating speed of the recycling belt and enabling more defective cigarettes to be transported to the defective cigarette collection box without causing clogging of the cigarette machine.

[0066] To address the drawback of a fixed operating speed for the recycling belt, the control motor is replaced with a variable frequency motor. Based on the cigarette production speed of the cigarette machine and the rejection speed of defective cigarettes, the frequency converter adjusts the operating speed of the recycling belt in real time. This prevents the recycling belt from becoming clogged due to excessive defective cigarettes, reduces the number of cigarette machine downtimes, improves equipment efficiency, and extends the service life of the recycling belt.

[0067] In addition, a level detector installed above the defective cigarette collection box can be used to quickly determine the level of defective cigarettes in the collection box, and a temperature detector installed above the collection box can be used to quickly determine the temperature of defective cigarettes in the collection box. Furthermore, if the level of defective cigarettes exceeds the preset level, a first alarm module can be used to issue a timely alarm for the level exceeding the preset level, and if the temperature of defective cigarettes in the collection box exceeds the preset temperature, a second alarm module can be used to issue a timely alarm for the temperature exceeding the preset temperature, thereby improving the safety of the cigarette making machine operation.

[0068] This invention also provides a cigarette rolling machine, comprising: one or more controllers; a storage device for storing one or more programs; and further comprising a recycling belt, a control motor, a frequency converter, and a defective cigarette collection box; the recycling belt is used to transport defective cigarettes to the defective cigarette collection box, the control motor is used to control the operation of the recycling belt, and the frequency converter is used to control the operation of the control motor; when the one or more programs are executed by the one or more processors, the one or more processors implement the defective cigarette recycling method as described above.

[0069] The cigarette rolling machine provided in this embodiment of the invention can execute the defective cigarette recycling method provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects for executing the defective cigarette recycling method.

[0070] Figure 4 This is a schematic diagram of a defective cigarette recycling system provided in an embodiment of the present invention, as shown below. Figure 4 As shown, it includes: an industrial control computer and the aforementioned cigarette rolling machine, wherein the industrial control computer is used to monitor the operating status of the cigarette rolling machine.

[0071] Specifically, the cigarette machine's controller communicates with an industrial computer via Ethernet. The industrial computer monitors the controller's operating status and displays alarm information. The controller connects to a distributed station via a fieldbus. The distributed station includes input modules, output modules, a first frequency converter, and a second frequency converter. A laser detector is used to detect the level of defective cigarettes in the cigarette collection box. The level of defective cigarettes detected by the laser detector can be connected to the input module on the distributed station, which then sends the level of defective cigarettes to the controller via the fieldbus. A temperature detector is used to detect the temperature of defective cigarettes in the cigarette collection box. The temperature of defective cigarettes detected by the temperature detector can also be connected to the input module on the distributed station, which then sends the temperature of defective cigarettes to the controller via the fieldbus.

[0072] When the cigarette rolling machine is running, the controller can calculate the target operating frequencies for the first and second frequency converters based on the cigarette production speed and the defective cigarette rejection speed. It can also send the target operating frequency for the first frequency converter to the first frequency converter, which then controls the operating efficiency of the first motor, and the first motor controls the speed of the first belt. Similarly, it can send the target operating frequency for the second frequency converter to the second frequency converter, which then controls the operating efficiency of the second motor, and the second motor controls the speed of the second belt.

[0073] In one embodiment, the cigarette rolling machine is used to send a material level exceeding information to the industrial control computer when it is determined that the defective cigarettes in the defective cigarette collection box exceed a preset material level, and is also used to send a temperature exceeding information to the industrial control computer when it is determined that the temperature of the defective cigarettes in the defective cigarette collection box exceeds a preset temperature; the industrial control computer is used to display the material level exceeding information based on a preset interface when it receives the material level exceeding information, and is also used to display the temperature exceeding information based on a preset interface when it receives the temperature exceeding information.

[0074] The level detector detects the level of defective cigarettes in the defective cigarette collection box and transmits this information to the controller in real time. When the level exceeds the preset level, the controller issues an audible and visual alarm via the first alarm module in its output module. The controller can also send the level exceedance information to the industrial control computer, which displays a yellow alarm message indicating "High level in the defective cigarette collection box," prompting staff to clean the defective cigarettes from the collection box. The temperature detector detects the temperature of the defective cigarettes in the collection box and transmits this information to the controller in real time. When the temperature exceeds the preset temperature, the controller issues an audible and visual alarm via the second alarm module in its output module. The controller can also send the temperature exceedance information to the industrial control computer, which displays a red alarm message indicating "High temperature in the defective cigarette collection box." Simultaneously, the cigarette-making machine immediately stops, prompting staff to promptly handle the overheated defective cigarettes to prevent fire hazards.

[0075] The defective cigarette recycling system provided in this embodiment of the invention can execute the defective cigarette recycling method provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects for executing the defective cigarette recycling method.

[0076] Furthermore, the acquisition, storage, use, and processing of data in the technical solution of this invention all comply with relevant laws and regulations.

[0077] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A method for recycling defective cigarettes, characterized in that, An application to a cigarette rolling machine including a recovery belt, a control motor, a frequency converter, and a defective cigarette collection box, wherein the recovery belt is used to transport defective cigarettes to the defective cigarette collection box, the control motor is used to control the operation of the recovery belt, and the frequency converter is used to control the operation of the control motor, the method comprising: The cigarette production speed and defective cigarette rejection speed of the cigarette machine are obtained, and the maximum theoretical rejection speed of the defective cigarettes is calculated based on the cigarette production speed. When it is determined that the rejection speed is greater than the maximum theoretical rejection speed, the operating frequency of the frequency converter is calculated based on the cigarette production speed, and the operating frequency of the frequency converter is increased by a first preset ratio to obtain the target operating frequency of the frequency converter. The frequency converter is controlled to operate based on the target operating frequency, thereby controlling the control motor to drive the recycling belt to transport the defective cigarettes to the defective cigarette collection box.

2. The method for recovering defective cigarettes according to claim 1, characterized in that, The maximum theoretical rejection rate of defective cigarettes is calculated based on the cigarette production speed, including: The maximum theoretical rejection rate of defective cigarettes is calculated based on the cigarette production speed and the maximum rejection ratio of defective cigarettes.

3. The method for recovering defective cigarettes according to claim 1, characterized in that, Calculating the operating frequency of the frequency converter based on the cigarette production speed includes: Based on the correspondence between cigarette production speed and the operating frequency of the frequency converter, the operating frequency corresponding to the cigarette production speed is determined.

4. The method for recovering defective cigarettes according to claim 1, characterized in that, The recycling belt includes a first belt and a second belt. The control motor includes a first motor for controlling the first belt and a second motor for controlling the second belt. Accordingly, the frequency converter is controlled to operate based on the target operating frequency to control the control motor to drive the recycling belt to transport the defective cigarettes to the defective cigarette collection box, including: The inverter is controlled to operate based on the target operating frequency, thereby controlling the first motor to drive the first belt to transport the defective cigarette to the second belt, and controlling the second motor to drive the second belt to transport the defective cigarette to the defective cigarette collection box.

5. The method for recovering defective cigarettes according to claim 4, characterized in that, The operating speed of the second motor is in a second preset ratio to the operating speed of the first motor.

6. The method for recovering defective cigarettes according to claim 1, characterized in that, The cigarette rolling machine also includes a material level detector and a first alarm module disposed above the defective cigarette collection box; correspondingly, the method also includes: The level of defective cigarettes in the defective cigarette collection box is detected based on the level detector. If it is determined that the level of the defective cigarette exceeds the preset level, an alarm is triggered based on the first alarm module.

7. The method for recovering defective cigarettes according to claim 1, characterized in that, The cigarette rolling machine also includes a temperature detector and a second alarm module disposed above the defective cigarette collection box; correspondingly, the method also includes: The temperature detector is used to detect the temperature of defective cigarettes inside the defective cigarette collection box. If the temperature of the defective cigarette exceeds the preset temperature, an alarm is triggered based on the second alarm module.

8. A cigarette rolling machine, characterized in that, include: One or more controllers; Storage device for storing one or more programs; It also includes a recycling belt, a control motor, a frequency converter, and a defective cigarette collection box; The recycling belt is used to transport defective cigarettes to the defective cigarette collection box, the control motor is used to control the operation of the recycling belt, and the frequency converter is used to control the operation of the control motor. When the one or more programs are executed by the one or more processors, the one or more processors implement the defective cigarette recycling method as described in any one of claims 1-7.

9. A defective cigarette recycling system, characterized in that, include: The industrial control computer and the cigarette rolling machine according to claim 8, wherein the industrial control computer is used to monitor the operating status of the cigarette rolling machine.

10. The defective cigarette recycling system according to claim 9, characterized in that, The cigarette rolling machine is used to send information indicating that the defective cigarettes in the defective cigarette collection box exceed a preset level to the industrial control computer, and is also used to send information indicating that the temperature of the defective cigarettes in the defective cigarette collection box exceeds a preset temperature to the industrial control computer; the industrial control computer is used to display the information indicating that the defective cigarettes exceed a preset level on a preset interface when it receives the information indicating that the defective cigarettes exceed a preset level, and is also used to display the information indicating that the temperature exceeds a preset level on a preset interface when it receives the information indicating that the temperature exceeds a preset level.

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