Control method for and apparatus for online recycling of tobacco shreds from defective cigarettes rejected by cigarette making machine

Abstract

A control method for the online recycling of tobacco shreds from defective cigarettes rejected by a cigarette making machine. The method comprises the following steps: a defective cigarette receiving drum (211) transferring defective cigarettes (22) to a defective cigarette buffer bin (213); when a defective cigarette presence detector (212) detects that the height of the defective cigarettes in the defective cigarette buffer bin reaches a startup position, the defective cigarette presence detector sending a startup signal to a residual cigarette processing apparatus; a defective cigarette ejecting drum (214) sending the defective cigarettes from the defective cigarette buffer bin to the residual cigarette processing apparatus; and tobacco shreds that come out of the residual cigarette processing apparatus and have been subjected to impurity removal entering a cigarette making machine tobacco shred return channel or a tobacco shred adding port by means of a re-blending conveying pipe (221). The method realizes real-time, online and automatic recycling and processing of the defective cigarettes rejected by the cigarette making machine, and real-time, online and automatic same-grade re-blending and utilization of the recycled tobacco shreds, and solves the problems of a decline in tobacco shred quality, a relatively low tobacco shred recycling rate, low production efficiency, an increase in enterprise labor costs, a reduction in the tobacco shred use value, quality fluctuations in target products re-blended with the recycled tobacco shreds, etc. caused by conventional processing modes. In addition, further provided is an apparatus (21) for the online recycling of tobacco shreds from defective cigarettes rejected by a cigarette making machine.

Description

A method and device for controlling online recovery of cut tobacco for rejecting defective cigarettes from a cigarette making machine Technical Field

[0001] The present invention belongs to the technical field of cigarette quality management, and in particular relates to an online tobacco recovery control method and device for rejecting defective cigarettes from a cigarette making machine. Background Art

[0002] The rejection of defective cigarettes by cigarette making machines is a necessary product of the cigarette making process. Currently, most of the defective cigarettes rejected by cigarette making machines are recycled by manual centralized collection and centralized mixed brand processing, and recycled tobacco is recycled by downgrading and back-blending. The current recycling and utilization methods of tobacco rejected by defective cigarettes by cigarette making machines lead to problems such as reduced tobacco quality, low tobacco recovery rate, low production efficiency, increased labor costs for enterprises, depreciation of tobacco use value, and fluctuations in the quality of the target product of recycled tobacco back-blending. In order to improve the recovery rate and purity of tobacco rejected by cigarette making machines, the applicant proposed a technical solution with publication number CN111248475A and invention name "residual cigarette processing device". However, since the centralized recycling, mixed brand processing and downgrading and back-blending of tobacco rejected by current cigarette making machines have not undergone fundamental changes, the above series of problems caused by the current recycling and utilization methods of tobacco rejected by defective cigarettes by cigarette making machines still exist.

[0003] Summary of the Invention

[0004] The object of the present invention is to provide a method and device for controlling online tobacco recovery for rejecting defective cigarettes in a cigarette making machine, so as to solve the problems existing in the above-mentioned background technology.

[0005] To achieve the above objectives, this application is implemented through the following technical solutions:

[0006] A method for controlling online tobacco recovery for rejecting defective cigarettes in a cigarette making machine comprises the following steps:

[0007] S1. The online detection device of the cigarette making machine detects and identifies defective cigarettes and sends a rejection signal;

[0008] S2. The defective cigarette rejecting drum of the cigarette making machine transfers the defective cigarettes to the defective cigarette receiving drum;

[0009] S3: The defective cigarette receiving drum delivers the defective cigarettes to the defective cigarette buffer in an orderly manner;

[0010] S4. The defective cigarette presence detector in the defective cigarette buffer detects the height of the cigarettes in the defective cigarette buffer. If the height of the cigarettes in the defective cigarette buffer reaches the start position, the defective cigarette presence detector sends a start signal to the residual cigarette processing device and enters S5. If the height of the cigarettes in the defective cigarette buffer is lower than the set position, the defective cigarette presence detector sends a stop signal to the residual cigarette processing device.

[0011] S5. The defective cigarette ejecting drum sends the cigarettes in the defective cigarette buffer to the residual cigarette processing device. The tobacco leaves the residual cigarette processing device and passes through the debris detection and removal device to detect the tobacco and remove debris in the tobacco.

[0012] S6. The tobacco shreds after impurity removal enter the tobacco return channel or tobacco addition port of the cigarette making machine through the back-mixing conveying pipe.

[0013] Furthermore, a cigarette detector is provided on the defective cigarette receiving drum. When the cigarette detector detects that there are cigarettes on the defective cigarette receiving drum, the defective cigarette receiving drum rotates to transport the defective cigarettes to the defective cigarette buffer.

[0014] Furthermore, when the defective cigarette ejecting drum is started, the defective cigarettes in the defective cigarette buffer are output to the residual cigarette processing device in the order in which they enter.

[0015] Furthermore, the defective cigarettes entering the defective cigarette buffer are directly sent to the residual cigarette processing device through the defective cigarette launching drum.

[0016] A tobacco online recovery device for rejecting defective cigarettes from a cigarette making machine comprises a defective cigarette receiving drum, a defective cigarette buffer, a defective cigarette presence detector, a defective cigarette ejecting drum, a defective cigarette conveying pipe, a defective cigarette cutting knife and a tobacco auxiliary material separator;

[0017] The defective cigarette receiving drum is connected to the defective cigarette rejecting drum and the defective cigarette buffer. The defective cigarette launching drum is arranged in the defective cigarette buffer. The defective cigarette launching drum is connected to the defective cigarette conveying pipe, the waste cigarette cutting knife and the tobacco auxiliary material separator in sequence. The tobacco outlet of the tobacco auxiliary material separator is connected to the cigarette making machine's tobacco return channel or tobacco adding port through the back-mixing conveying pipe.

[0018] Furthermore, a defective cigarette detector is provided in the defective cigarette buffer.

[0019] Furthermore, the defective cigarette cutting knife and the tobacco auxiliary material separator constitute a residual cigarette processing device.

[0020] Furthermore, the tobacco and auxiliary material separator includes a high-frequency vibration rotation device and an auxiliary material separation screen. The tobacco is separated from the auxiliary material through high-frequency vibration rotation, and the auxiliary material is discharged through the auxiliary material discharge port of the tobacco and auxiliary material separator.

[0021] Furthermore, a debris detection and removal device is provided below the auxiliary material separation screen.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] This technical solution realizes the real-time online automatic recovery and processing of defective cigarettes rejected by cigarette making machines, and the real-time online automatic same-level re-blending of recovered tobacco, solving the problems of tobacco quality decline, low tobacco recovery rate, low production efficiency, increased enterprise labor costs, depreciation of tobacco use value, and fluctuations in the quality of target products for re-blending of recovered tobacco caused by traditional processing modes. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG1 is a schematic diagram of the process of automatically recycling tobacco shreds removed from defective cigarettes in a cigarette making machine according to the present invention.

[0025] FIG2 is a process flow chart of a control method for automatically recycling tobacco shreds removed from defective cigarettes in a cigarette making machine according to the present invention.

[0026] FIG3 is a schematic structural diagram of a cigarette making machine provided with an online automatic tobacco recycling device for rejecting defective cigarettes from the cigarette making machine.

[0027] FIG4 is a schematic diagram of the structure of an online automatic tobacco recycling device for rejecting defective cigarettes from a cigarette making machine.

[0028] Explanation of the accompanying symbols: 1. Smoke inlet drum; 2. First slitting wheel; 3. Separation wheel; 4. Merging drum; 5. Acceleration wheel; 6. Straightening drum; 7. Filter tip offset drum; 8. Filter tip cutting drum; 9. Paper cutting wheel; 10. Approaching drum; 11. Cigarette rolling wheel; 12. Transfer drum; 13. Second slitting wheel; 14. Transfer drum; 15. Turning drum; 16. Detection drum; 17. Rejection drum; 18. Sampling drum; 19. Transition drum; 20. Smoke outlet drum; 21. Online tobacco recycling device for rejecting waste cigarettes from cigarette making machine; 22. Defective cigarette; 2 11. Waste cigarette receiving drum; 212. Waste cigarette presence detector; 213. Waste cigarette buffer; 214. Waste cigarette launching drum; 215. Blocking roller; 216. Waste cigarette conveying pipe; 217. Waste cigarette cutting knife; 218. Tobacco and auxiliary material separator; 219. Auxiliary material discharge port; 220. Auxiliary material debris collector; 221. Tobacco re-mixing conveying channel; 222. Debris removal air curtain; 223. Debris detector. DETAILED DESCRIPTION

[0029] The technical solution of the present invention is described in detail below with reference to the accompanying drawings. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of the present invention, and cannot be interpreted as limiting the technical solution of the present invention.

[0030] In the technical solution of this application, for the specific technical solution of the residual smoke treatment device, please refer to the applicant CN111248475A, the invention name of which is the prior technical solution of the residual smoke treatment device. The residual smoke treatment device will not be described in detail here.

[0031] As shown in FIG1 and FIG2, the present application provides a control method for automatically recycling tobacco shreds for online rejection of defective cigarettes in a cigarette making machine, which adopts the following steps:

[0032] S1. The online detection device of the cigarette making machine detects and identifies defective cigarettes and sends a rejection signal. This part is existing technology and all models of cigarette making machines have this part. The original machine's defective cigarette rejection solenoid valve is used to simultaneously control the rejection drum rejection valve and the defective cigarette receiving drum's negative pressure suction opening and closing valve. In this case, the defective cigarette receiving drum's negative pressure suction is an external negative pressure suction and does not need to pass through the original machine's air distribution box. When not in the rejection state, the defective cigarette receiving drum operates but does not transfer filter cigarettes. There is no need for negative pressure suction at the defective cigarette receiving phase wheel groove of the air distribution seat. When the rejection instruction arrives, the original machine's defective cigarette rejection solenoid valve controls the rejection drum's rejection valve to operate, and compressed air blows out the cigarettes. At the same time, the original machine's defective cigarette rejection solenoid valve controls the defective cigarette receiving drum's negative pressure suction opening and closing valve to open, and negative pressure suction enters the defective cigarette receiving drum's air distribution seat, causing suction in the air distribution seat, and the filter cigarettes are sucked into the defective cigarette receiving drum. After the rejection is completed, the solenoid valve is closed, the rejection valve's compressed air is closed, and the defective cigarette receiving drum's negative pressure is closed.

[0033] S2. The defective cigarette rejection drum of the cigarette making machine transfers the defective cigarettes to the defective cigarette receiving drum. In the technical solution of the present application, the drive shaft of the defective cigarette receiving drum rotates synchronously with the drive shaft of the original defective cigarette rejection drum of the cigarette making machine through a gear pair, so that the instantaneous linear speeds of the two at the intersection are consistent, ensuring the flexible transmission of cigarettes, and at the same time ensuring that the defective cigarette receiving drum accurately transfers the defective cigarettes detected and identified by the online detection device of the cigarette making machine to the defective cigarette buffer, or directly transports the defective cigarettes to the defective cigarette emission drum.

[0034] S3. The defective cigarette receiving drum delivers the defective cigarettes in an orderly and orderly manner to the defective cigarette buffer. In other embodiments of the present application, to ensure that the tobacco recovered from the defective cigarettes is in a state closer to that of production tobacco, the defective cigarette receiving drum directly delivers the defective cigarettes to the defective cigarette ejecting drum, which then passes through the residual tobacco processing device and returns the tobacco directly to the cigarette making machine. In this case, the defective cigarette buffer is only used for temporary storage during equipment maintenance, etc. However, in general, the defective cigarette receiving drum delivers the defective cigarettes in an orderly and orderly manner to the defective cigarette buffer.

[0035] S4. Because the number of defective cigarettes produced by the cigarette making machine is limited, if the residual cigarette processing device is kept running for a long time, it will be detrimental to energy saving and production cost control. Therefore, the residual cigarette processing device is only started when the number of defective cigarettes in the defective cigarette buffer reaches a set height. Specifically, the cigarette detector in the defective cigarette buffer detects the height of the cigarettes in the defective cigarette buffer. If the height of the cigarettes in the defective cigarette buffer reaches the starting position, the cigarette detector sends a starting signal to the residual cigarette processing device and enters S5; if the height of the cigarettes in the defective cigarette buffer is lower than the set position, the cigarette detector sends a stop signal to the residual cigarette processing device.

[0036] S5, the defective cigarette launching drum wheel sends the cigarettes in the defective cigarette buffer to the residual cigarette processing device, and the tobacco coming out of the residual cigarette processing device is detected by the debris detection and removal device and the debris in the tobacco is removed. Specifically, the defective cigarette launching drum wheel starts or pauses according to the detection signal of the cigarette detector in the defective cigarette buffer, and the defective cigarette launching drum wheel launches the defective cigarette through the defective cigarette conveying pipe to the defective cigarette cutting knife at the end of the defective cigarette conveying pipe. After cutting, the defective cigarette The defective cigarettes enter the tobacco and auxiliary material separator. After cutting, the defective cigarettes pass through the high-frequency vibration rotating tobacco and auxiliary material separation screen cylinder in the tobacco and auxiliary material separator to separate the tobacco and auxiliary materials. The auxiliary materials are discharged through the auxiliary material discharge port of the tobacco and auxiliary material separator. The tobacco falls after passing through the mesh of the high-frequency vibration rotating tobacco and auxiliary material separation screen cylinder. The debris detection and removal device detects the fallen tobacco and removes the debris in the tobacco. The removed debris is discharged from the debris removal port, and the tobacco enters the cigarette making machine's tobacco return channel or tobacco addition port through the back-mixing conveying pipe.

[0037] The present application also provides a structural schematic diagram of a cigarette-making machine equipped with an online automatic tobacco recovery device, including a smoke inlet drum, a first slitting wheel, a separation wheel, a merging drum, an acceleration wheel, a straightening drum, a filter offset drum, a paper cutting wheel, a closing drum, a cigarette rubbing wheel, a transfer drum, a second slitting wheel, a transfer drum, a turning drum, a detection drum, a rejection drum, a sampling drum, a transition drum, a smoke outlet wheel, and an online tobacco recovery device for a cigarette-making machine for rejecting defective cigarettes.

[0038] As shown in Figure 4, the device for automatically recovering defective tobacco from a cigarette making machine in the present application is a device that adds a defective cigarette receiving drum, a defective cigarette presence detector, a defective cigarette launching drum, a defective cigarette conveying tube, a defective cigarette cutting knife, and a tobacco auxiliary material separator to the cigarette making machine. The defective cigarette presence detector is installed in the defective cigarette buffer; the tobacco auxiliary material separator includes a high-frequency vibration rotating tobacco auxiliary material separation screen cylinder, an auxiliary material discharge port, and a tobacco discharge port. The device includes a rejecting drum, a defective cigarette receiving drum, a cigarette presence detector, a defective cigarette buffer, a defective cigarette launching drum, a blocking roller, a cigarette conveying tube, a defective cigarette cutting knife, a tobacco auxiliary material separator, an auxiliary material discharge port, an auxiliary material debris collector, a tobacco re-mixing conveying channel, an air curtain for removing debris, and a debris detector.

[0039] Working principle:

[0040] The defective cigarette receiving drum is connected to the defective cigarette rejecting drum and the defective cigarette buffer. The defective cigarette launching drum is placed in the defective cigarette buffer. The defective cigarette launching drum is connected to the defective cigarette conveying pipe, the defective cigarette cutting knife, and the tobacco auxiliary material separator in sequence.

[0041] When the online detection device of the cigarette making machine detects and identifies defective cigarettes and sends out a rejection signal, the defective cigarette rejection drum of the cigarette making machine transfers the defective cigarettes to the defective cigarette receiving drum, which transfers the defective cigarettes into the defective cigarette buffer in an orderly manner. The defective cigarette launching drum in the defective cigarette buffer performs a start or temporary action according to the detection signal of the defective cigarettes in the buffer. The defective cigarette launching drum launches the defective cigarettes through the defective cigarette conveying tube to the defective cigarette cutting knife at the end of the defective cigarette conveying tube. After cutting, Defective cigarettes enter the tobacco and auxiliary material separator; after cutting, the defective cigarettes pass through the high-frequency vibration rotating tobacco and auxiliary material separation screen cylinder in the tobacco and auxiliary material separator to separate the tobacco and auxiliary materials. The auxiliary materials are discharged through the auxiliary material discharge port of the tobacco and auxiliary material separator and fall into the auxiliary material debris collector. The tobacco falls after passing through the mesh of the high-frequency vibration rotating tobacco and auxiliary material separation screen cylinder. The debris detection and removal device detects the falling tobacco and removes the debris in the tobacco. The removed debris falls into the auxiliary material debris collector, and the tobacco enters the cigarette machine return channel through the back-mixing conveying pipe.

[0042] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any improvements and replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. A method for controlling online tobacco recovery for rejecting defective cigarettes in a cigarette making machine, characterized in that: Use the following steps: S1. The online detection device of the cigarette making machine detects and identifies defective cigarettes and sends a rejection signal; S2. The defective cigarette rejecting drum of the cigarette making machine transfers the defective cigarettes to the defective cigarette receiving drum; S3: The defective cigarette receiving drum delivers the defective cigarettes to the defective cigarette buffer in an orderly manner; S4. The defective cigarette presence detector in the defective cigarette buffer detects the height of the cigarettes in the defective cigarette buffer. If the height of the cigarettes in the defective cigarette buffer reaches the start position, the defective cigarette presence detector sends a start signal to the residual cigarette processing device and enters S5. If the height of the cigarettes in the defective cigarette buffer is lower than the set position, the defective cigarette presence detector sends a stop signal to the residual cigarette processing device. S5. The defective cigarette ejecting drum sends the cigarettes in the defective cigarette buffer to the residual cigarette processing device. The tobacco leaves the residual cigarette processing device and passes through the debris detection and removal device to detect the tobacco and remove debris in the tobacco. S6. The tobacco shreds after impurity removal enter the tobacco return channel or tobacco addition port of the cigarette making machine through the back-mixing conveying pipe.

2. The on-line tobacco recycling control method for rejecting defective cigarettes in a cigarette making machine according to claim 1, characterized in that: A cigarette detector is provided on the defective cigarette receiving drum. When the cigarette detector detects that there are cigarettes on the defective cigarette receiving drum, the defective cigarette receiving drum rotates to transport the defective cigarettes to the defective cigarette buffer.

3. The online tobacco recycling control method for rejecting defective cigarettes in a cigarette making machine according to claim 1, characterized in that: When the defective cigarette ejecting drum is started, the defective cigarettes in the defective cigarette buffer are output to the residual cigarette processing device in the order in which they enter.

4. The on-line tobacco recycling control method for rejecting defective cigarettes in a cigarette making machine according to claim 1, characterized in that: The defective cigarettes entering the defective cigarette buffer are directly sent to the residual cigarette processing device through the defective cigarette launching drum.

5. An online tobacco recovery device for rejecting defective cigarettes from a cigarette making machine, characterized in that: It includes a defective cigarette receiving drum, a defective cigarette buffer, a defective cigarette presence detector, a defective cigarette launching drum, a defective cigarette conveying tube, a defective cigarette cutting knife and a tobacco auxiliary material separator; The defective cigarette receiving drum is connected to the defective cigarette rejecting drum and the defective cigarette buffer. The defective cigarette launching drum is set in the defective cigarette buffer. The defective cigarette launching drum is connected to the defective cigarette conveying pipe, the waste cigarette cutting knife and the tobacco auxiliary material separator in sequence. The tobacco outlet of the tobacco auxiliary material separator is connected to the tobacco return channel or the tobacco adding port of the cigarette making machine through the back-mixing conveying pipe.

6. The on-line tobacco recovery device for rejecting defective cigarettes in a cigarette making machine according to claim 5, characterized in that: The defective cigarette presence detector is arranged in the defective cigarette buffer.

7. The on-line tobacco recovery device for rejecting defective cigarettes in a cigarette making machine according to claim 5, characterized in that: The defective cigarette cutting knife and the tobacco auxiliary material separator constitute the residual cigarette processing device.

8. The on-line tobacco recovery device for rejecting defective cigarettes in a cigarette making machine according to claim 5, characterized in that: The tobacco and auxiliary material separator includes a high-frequency vibration rotation device and an auxiliary material separation screen. The tobacco and auxiliary materials are separated by high-frequency vibration rotation, and the auxiliary materials are discharged through the auxiliary material discharge port of the tobacco and auxiliary material separator.

9. The on-line tobacco recovery device for rejecting defective cigarettes in a cigarette making machine according to claim 8, characterized in that: A debris detection and rejection device is provided below the auxiliary material separation screen.

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