Wind power wire feeding system

Abstract

The utility model provides a wind power wire feeding system. The wind power cut tobacco feeding system comprises a cigarette making and plug assembling machine; a plurality of wire feeders; the wire feeding pipeline comprises a main pipe, a plurality of branch pipes and a plurality of control valves, the inlet end of each branch pipe is selectively connected with one wire feeding machine, the outlet end of each branch pipe is connected with the cigarette making and plug assembling machine through the main pipe, and the control valves are correspondingly arranged on the branch pipes; the valve position detection devices are configured to detect valve position state information so as to obtain actual on-off states; and the plurality of negative pressure detection devices are configured to detect the negative pressure state information so as to obtain the actual on-off state. The wind power cut tobacco feeding system provided by the utility model can reduce the probability that cut tobacco marks have errors in the cut tobacco conveying process.

Description

Technical Field

[0001] The present disclosure relates to the field of tobacco production and manufacturing, and in particular to a wind-powered wire feeding system. Background Art

[0002] In the cigarette manufacturing process, tobacco is usually transported to the designated cigarette making machine through wind pipes. Generally, the rolling and packaging workshop of a production enterprise will be equipped with multiple tobacco feeders and multiple cigarette rolling machines, and one cigarette box platform corresponds to one tobacco feeder. A single tobacco feeder has multiple pipes, and each pipe corresponds to the discharge of a cigarette rolling machine. Since the enterprise has many production brands and cigarette rolling machines, in order to meet the needs of flexible production of the enterprise, some cigarette rolling machines also need to correspond to multiple tobacco feeders.

[0003] During production, only a single brand of tobacco can be transported to the tobacco rolling machine through the pneumatic duct. Therefore, when a single tobacco rolling machine corresponds to multiple tobacco feeders, a control valve is provided on the pipeline of each tobacco feeder. The production requirements can be met by opening the control valve of the tobacco feeder of the required brand and closing the control valves of other tobacco feeders.

[0004] The above process is usually operated and checked manually. If the operator makes a mistake when switching the open and closed state of the control valve, the actual connection state between the tobacco rolling machine pipeline and the tobacco feeding machine pipeline will be inconsistent with the expected connection state. The tobacco actually obtained by the tobacco rolling machine is different from the tobacco brand required for its production, or even a mixture of multiple brands, resulting in major quality accidents such as wrong brand and mixed brand of tobacco. Utility Model Content

[0005] The purpose of the present disclosure is to provide a wind-powered tobacco feeding system to reduce the probability of errors in tobacco brand during tobacco feeding.

[0006] A first aspect of the present disclosure provides a pneumatic wire feeding system, comprising:

[0007] A rolling machine configured to roll the tobacco into cigarette paper to form a cigarette;

[0008] A plurality of tobacco feeders, different of which are configured to provide tobacco of different brands to the tobacco rolling machine;

[0009] A wire feeding pipeline, configured to transport the shredded tobacco from the wire feeder to the tobacco rolling machine under negative pressure, comprising a main pipe, a plurality of branch pipes and a plurality of control valves, wherein the inlet end of each branch pipe is selectively connected to one of the wire feeders, the outlet end of each branch pipe is connected to the inlet end of the main pipe, and the outlet end of the main pipe is connected to the tobacco rolling machine, and a plurality of control valves are correspondingly arranged on the plurality of branch pipes, wherein the control valve comprises a valve body and a switching component, and the position of the switching component relative to the valve body is adjustable, so that the inlet end and the outlet end of the corresponding branch pipe are connected or disconnected by opening or closing the control valve;

[0010] a plurality of valve position detection devices, provided corresponding to the plurality of control valves, configured to detect valve position status information, the valve position status information being used to indicate the position of the switching component relative to the valve body, so as to obtain the actual on-off status of the inlet and outlet ends of the corresponding branch pipes; and

[0011] Multiple negative pressure detection devices are arranged corresponding to the multiple branch pipes and are configured to detect negative pressure status information, wherein the negative pressure status information is used to indicate whether the absolute value of the negative pressure in the corresponding branch pipe is greater than or equal to a preset value, so as to obtain the actual on-off status of the inlet and outlet ends of the corresponding branch pipe.

[0012] According to some embodiments of the present disclosure, the valve position detection device includes a travel switch, and the switching component is movably arranged between a first position and a second position. In the first position, the switching component disconnects the inlet and outlet ends of the corresponding branch pipe, and the travel switch is in a triggered state. In the second position, the inlet and outlet ends of the corresponding branch pipe are connected, and the travel switch is in a non-triggered state.

[0013] According to some embodiments of the present disclosure, the action stroke of the travel switch is adjustable.

[0014] According to some embodiments of the present disclosure, the preset value of the negative pressure detection device is adjustable.

[0015] According to some embodiments of the present disclosure, the branch pipe has an observation section, at least a portion of which is transparent, and the observation section is disposed at the downstream end of the control valve along the tobacco conveying direction;

[0016] The wind-powered wire feeding system comprises a plurality of compressed air providing devices correspondingly arranged on the plurality of branch pipes, and the compressed air providing devices are configured to provide compressed air into the branch pipes so as to blow the tobacco on the control valve away from the control valve.

[0017] According to some embodiments of the present disclosure, the wire feeder comprises:

[0018] Silk feeding bin; and

[0019] A connector has an inlet end and a plurality of outlet ends, wherein the inlet end of the connector is communicated with the wire feeding bin, and the outlet end of the connector is selectively connected to the inlet end of one of the branch pipes.

[0020] According to some embodiments of the present disclosure, the wire feeder further comprises:

[0021] A connecting pipe, both ends of which are respectively connected between the wire feeding bin and the inlet end of the joint, and the connecting pipe is transparent; and

[0022] The photoelectric switch has a receiving end and a transmitting end which are correspondingly arranged on the outer wall of the connecting tube.

[0023] According to some embodiments of the present disclosure, a control device is included, which is signal-connected to the rolling machine, multiple wire feeders, multiple valve position detection devices and multiple negative pressure detection devices. The control device is configured to control whether the multiple wire feeders provide tobacco and whether the rolling machine receives tobacco based on work order information, the valve position status information of each control valve and the negative pressure status information of each branch pipe. The work order information is determined by the cigarette production requirements, and the work order information is used to indicate that one of the wire feeders is selected to provide tobacco to the rolling machine, so as to obtain the expected on-off status of the inlet and outlet ends of each branch pipe.

[0024] According to some embodiments of the present disclosure, an alarm device is further included, which is connected to the control device signal, and the control device is configured to control whether the alarm device sends an alarm signal based on the work order information, the valve position status information of each control valve and the negative pressure status information of each branch pipe.

[0025] The second aspect of the present disclosure provides a control method for the wind-powered wire feeding system according to the first aspect of the present disclosure, comprising:

[0026] According to the valve position status information of each control valve, the actual on-off status of the inlet and outlet of the corresponding branch pipe is obtained;

[0027] According to the negative pressure status information of each branch pipe, the actual on / off status of the inlet and outlet of the corresponding branch pipe is obtained;

[0028] If the shutdown condition is met, the tobacco maker stops receiving tobacco;

[0029] Wherein, the shutdown condition includes: for the inlet end and the outlet end of any of the branch pipes, the actual on-off state obtained according to the valve position state information is different from the actual on-off state obtained according to the negative pressure state information.

[0030] According to some embodiments of the present disclosure, work order information is determined according to cigarette production requirements, wherein the work order information is used to indicate that one of the tobacco feeders is selected to provide tobacco to the tobacco rolling machine, so as to obtain the expected on / off status of the inlet and outlet ends of each branch pipe, and the shutdown condition further includes:

[0031] The selected wire feeder is not connected to the coiling machine through the branch pipe; and / or

[0032] For the inlet and outlet of any of the branch pipes, the expected on-off state obtained according to the work order information is different from the actual on-off state obtained according to the valve position state information; and / or

[0033] For the inlet and outlet of any of the branch pipes, the expected on-off state obtained according to the work order information is different from the actual on-off state obtained according to the negative pressure state information.

[0034] According to some embodiments of the present disclosure, including: if the selected wire feeder and the rolling machine are connected through the branch pipe, and for the inlet and outlet ends of any branch pipe, the expected on-off state obtained according to the work order information is different from the actual on-off state obtained according to the valve position status information, each wire feeder stops providing tobacco.

[0035] According to some embodiments of the present disclosure, including:

[0036] If, for the inlet and outlet ends of any of the branch pipes, the expected on-off state obtained according to the work order information is the same as the actual on-off state obtained according to the valve position state information, and the actual on-off state obtained according to the valve position state information is different from the actual on-off state obtained according to the negative pressure state information, the tobacco feeder corresponding to the branch pipe stops supplying tobacco; and / or

[0037] If for the inlet and outlet ends of any branch pipe, the expected on-off state obtained according to the work order information is the same as the actual on-off state obtained according to the negative pressure state information, and the actual on-off state obtained according to the valve position state information is different from the actual on-off state obtained according to the negative pressure state information, the tobacco feeder corresponding to the branch pipe stops providing tobacco.

[0038] According to some embodiments of the present disclosure, it includes: if the shutdown condition is met, an alarm signal is output.

[0039] According to some embodiments of the present disclosure, outputting the alarm signal includes: if for the inlet and outlet ends of any of the branch pipes, the on-off state obtained according to the valve position state information and the on-off state obtained according to the negative pressure state information are different, outputting a first alarm signal.

[0040] According to some embodiments of the present disclosure, work order information is determined according to cigarette production requirements, wherein the work order information is used to indicate that one of the tobacco feeders is selected to provide tobacco to the tobacco rolling machine, so as to obtain the expected on / off status of the inlet and outlet ends of each branch pipe, and outputting the alarm signal comprises:

[0041] If the selected wire feeder is not connected to the coiling machine through the branch pipe, output a second alarm signal; and / or

[0042] If, for the inlet and outlet of any of the branch pipes, the expected on-off state obtained according to the work order information is different from the actual on-off state obtained according to the valve position state information, output a third alarm signal; and / or

[0043] If, for the inlet and outlet ends of any of the branch pipes, the expected on-off state obtained according to the work order information is different from the actual on-off state obtained according to the negative pressure state information, a fourth alarm signal is output.

[0044] In the pneumatic wire feeding system provided by the embodiment of the present disclosure, each wire feeder is provided with a corresponding branch pipe, and each branch pipe is provided with a corresponding valve position detection device and a negative pressure detection device, and the valve position state information detected by the valve position detection device and the negative pressure state information detected by the negative pressure detection device can both obtain the actual on-off state of the inlet and outlet of the corresponding branch pipe. For the inlet and outlet of the same branch pipe, the actual on-off state obtained according to the valve position state information and the actual on-off state obtained according to the negative pressure state information can be compared with each other, forming an error judgment mechanism for tobacco brand during tobacco transportation.

[0045] If the actual on-off state obtained according to the valve position status information is different from the actual on-off state obtained according to the negative pressure status information, that is, if the valve position status information indicates that the inlet and outlet ends of a branch pipe are disconnected and the negative pressure status information indicates that the inlet and outlet ends of the same branch pipe are connected, or if the valve position status information indicates that the inlet and outlet ends of a branch pipe are connected and the negative pressure status information indicates that the inlet and outlet ends of the same branch pipe are disconnected, it indicates that at least one of the control valve and the negative pressure detection device may be in a failed state, and the rolling machine may obtain tobacco of a non-required brand from other feeders, which may cause wrong and mixed brands of tobacco. Therefore, the wind-powered wire feeding system can further take preventive measures such as stopping the feeder and the rolling machine according to the above-mentioned error judgment mechanism to reduce the probability of errors in tobacco brands during tobacco transportation.

[0046] The control method of the wind-driven wire feeding system provided by the present disclosure has the advantages of the aforementioned wind-driven wire feeding system.

[0047] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of the present application. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation on the present disclosure. In the drawings:

[0049] Figure 1 It is a schematic diagram of the structure of a wind wire feeding system according to some embodiments of the present disclosure.

[0050] Figure 2 It is a schematic diagram of the structure of a wire feeding machine according to some embodiments of the present disclosure.

[0051] Figure 3 This is a schematic diagram of the partial structure of a wire feeding pipeline of a wind-powered wire feeding system in some embodiments of the present disclosure.

[0052] Figure 4 Another partial structural schematic diagram of the wire feeding pipeline of the wind-powered wire feeding system of some embodiments of the present disclosure.

[0053] Figure 5 for Figure 4 The structure diagram of the wire feeding pipeline shown in another perspective.

[0054] Figure 6 A schematic flow chart of a control method for a wind-driven wire feeding system according to some embodiments of the present disclosure.

[0055] In the accompanying drawings, each reference numeral represents:

[0056] 1. Wire feeding machine; 11. Wire feeding bin; 12. Connector; 120. Air inlet; 121. First outlet port; 122. Second outlet port; 13. Connecting pipe; 14. Photoelectric switch; 21. Main pipe; 22. Branch pipe; 221. First connecting port; 222. Second connecting port; 223. Observation section; 224. Third connecting port; 23. Control valve; 230. Valve body; 231. Switching component; 232. Locking device; 3. Winding machine; 4. Valve position detection device; 5. Negative pressure detection device; 61. Control device; 62. MES system; 63. Human-machine interface; 71. Compressed air switch. DETAILED DESCRIPTION

[0057] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present disclosure and its application or use. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0058] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present disclosure. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, these technologies, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0059] In the description of the present disclosure, it should be understood that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present disclosure.

[0060] In the description of the present disclosure, it is necessary to understand that the orientation or positional relationship indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description. Unless otherwise specified, these directional words 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 cannot be understood as limiting the scope of protection of the present disclosure; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0061] refer to Figures 1 to 5 Some embodiments of the present disclosure provide a pneumatic wire feeding system, including a winding machine 3, multiple wire feeding machines 1, a wire feeding pipeline, multiple valve position detection devices 4 and multiple negative pressure detection devices 5.

[0062] The cigarette rolling machine 3 is configured to roll tobacco into cigarette paper to make cigarettes. Different tobacco feeders 1 are configured to provide tobacco of different brands to the cigarette rolling machine 3. The wire feeding pipeline is configured to transport tobacco from the tobacco feeder 1 to the cigarette rolling machine 3 under negative pressure, including a main pipe 21, a plurality of branch pipes 22 and a plurality of control valves 23, the inlet end of each branch pipe 22 is selectively connected to one of the tobacco feeders 1, the outlet end of each branch pipe 22 is connected to the inlet end of the main pipe 21, and the outlet end of the main pipe 21 is connected to the cigarette rolling machine 3, and a plurality of control valves 23 are correspondingly arranged on the plurality of branch pipes 22, and the control valve 23 includes a valve body 230 and a switching component 231, and the position of the switching component 231 relative to the valve body 230 is adjustable, so that the inlet end and the outlet end of the corresponding branch pipe 22 are connected or disconnected by opening or closing the control valve 23. Multiple valve position detection devices 4 are arranged corresponding to multiple control valves 23, and are configured to detect valve position status information, and the valve position status information is used to indicate the position of the switching component 231 relative to the valve body 230, so as to obtain the actual on-off status of the inlet and outlet ends of the corresponding branch pipe 22; and multiple negative pressure detection devices 5 are arranged corresponding to multiple branch pipes 22, and are configured to detect negative pressure status information, and the negative pressure status information is used to indicate whether the absolute value of the negative pressure in the corresponding branch pipe 22 is greater than or equal to a preset value, so as to obtain the actual on-off status of the inlet and outlet ends of the corresponding branch pipe 22.

[0063] Figure 1 The diagram schematically shows three wire feeders 1 and three tobacco rolling machines 3 in the wind-powered wire feeding system. The two wire feeders 1 are connected to the tobacco rolling machines 3 through two different branch pipes 22, respectively. It should be noted that each wire feeder 1 is not limited to being connected to one tobacco rolling machine 3, and each wire feeder 1 can provide tobacco to the corresponding tobacco rolling machine 3 through a wire feeding pipe connected to different tobacco rolling machines 3.

[0064] Optionally, the wind-powered wire feeding system includes a fan, which is configured to suck the tobacco provided by the wire feeder 1 into the wire feeding duct to transport the tobacco to the tobacco rolling machine 3. Figure 4 , the control valve 23 is a gate valve, and the switching component 231 is movably mounted on the valve body 230. Optionally, refer to Figure 4 The control valve 23 includes a locking device 232, which is configured to lock the switching component 231 relative to the valve body 230, and maintain the open state or closed state of the control valve 23 by keeping the switching component 231 fixed relative to the valve body 230.

[0065] When the position of the switching component 231 relative to the valve body 230 represented by the valve position status information corresponds to the opening of the control valve 23, the actual on-off state of the inlet and outlet ends of the branch pipe 22 is connected; when the position of the switching component 231 relative to the valve body 230 represented by the valve position status information corresponds to the closing of the control valve 23, the actual on-off state of the inlet and outlet ends of the branch pipe 22 is disconnected.

[0066] When the negative pressure status information indicates that the absolute value of the negative pressure in any branch pipe 22 is greater than or equal to the preset value, it means that there is sufficient negative pressure in the wire feeding pipeline, the wire feeding pipeline is in a negative pressure wire feeding state, and the actual on-off state of the inlet and outlet ends of the branch pipe 22 is connected; when the negative pressure status information indicates that the absolute value of the negative pressure in any branch pipe 22 is less than the preset value, it means that the actual on-off state of the inlet and outlet ends of the branch pipe 22 is disconnected.

[0067] In the pneumatic wire feeding system provided by the embodiment of the present disclosure, each wire feeder 1 is provided with a corresponding branch pipe 22, and each branch pipe 22 is provided with a corresponding valve position detection device 4 and a negative pressure detection device 5, and the actual on-off state of the inlet and outlet of the corresponding branch pipe 22 can be obtained through the valve position state information detected by the valve position detection device 4 and the negative pressure state information detected by the negative pressure detection device 5. For the inlet and outlet of the same branch pipe 22, the actual on-off state obtained according to the valve position state information and the actual on-off state obtained according to the negative pressure state information are compared with each other, forming an error judgment mechanism for tobacco brand during tobacco transportation.

[0068] If the actual on-off state obtained according to the valve position status information is different from the actual on-off state obtained according to the negative pressure status information, that is, if the valve position status information indicates that the inlet and outlet ends of a branch pipe 22 are disconnected and the negative pressure status information indicates that the inlet and outlet ends of the same branch pipe 22 are connected, or if the valve position status information indicates that the inlet and outlet ends of a branch pipe 22 are connected and the negative pressure status information indicates that the inlet and outlet ends of the same branch pipe 22 are disconnected, then at least one of the control valve 23 and the negative pressure detection device 5 may be in a failed state, and the rolling machine 3 may obtain tobacco of an undesired brand from other feeders 1, which may cause wrong brands or mixed brands of tobacco. Therefore, the wind-powered wire feeding system can further take preventive measures such as shutting down the feeder 1 and the rolling machine 3 according to the above-mentioned error judgment mechanism to reduce the probability of errors in tobacco brands during tobacco transportation.

[0069] refer to Figure 4In some embodiments, the valve position detection device 4 includes a travel switch, and the switching component 231 is movably arranged between a first position and a second position. In the first position, the switching component 231 disconnects the inlet and outlet ends of the corresponding branch pipe 22, and the travel switch is in a triggered state. In the second position, the inlet and outlet ends of the corresponding branch pipe 22 are connected, and the travel switch is in a non-triggered state.

[0070] Optionally, the travel switch is disposed on the valve body 230 and is located on one side of the switching component 231 . The switching component 231 has a protrusion, which protrudes toward the side of the switching component 231 where the travel switch is disposed, so as to trigger the travel switch.

[0071] In the above embodiment, if the travel switch is in a triggered state, it indicates that the control valve 23 is in a closed state, and the inlet and outlet ends of the branch pipe 22 are disconnected. If the travel switch is not triggered, it indicates that the control valve 23 is in an open state, and the inlet and outlet ends of the branch pipe 22 are connected. Therefore, the actual on-off state of the inlet and outlet ends of the branch pipe 22 can be determined by whether the travel switch is triggered.

[0072] In some embodiments, the action travel of the travel switch is adjustable.

[0073] In the above embodiment, for the travel switch serving as a valve position detection device, its action stroke can be adjusted according to production requirements and the specific specifications of the wire feeding pipeline, thereby reducing the risk of the travel switch being missed or falsely triggered, improving the accuracy of the valve position status information, and thus improving the accuracy of the aforementioned error judgment mechanism.

[0074] In some embodiments, the preset value of the negative pressure detection device 5 is adjustable.

[0075] In the above embodiment, the preset value of the negative pressure detection device 5 can be adjusted according to production requirements, specific specifications of the wire feeding pipeline and the fan, which is conducive to improving the accuracy of the negative pressure state information, thereby improving the accuracy of the aforementioned error judgment mechanism.

[0076] refer to Figure 5 In some embodiments, the branch pipe 22 has an observation section 223, at least a portion of which is transparent, and the observation section 223 is disposed at the downstream end of the control valve 23 along the tobacco conveying direction. The wind-powered tobacco feeding system includes a plurality of compressed air supply devices correspondingly disposed on the plurality of branch pipes 22, and the compressed air supply devices are configured to provide compressed air into the branch pipe 22 to blow the tobacco on the control valve 23 away from the control valve 23.

[0077] Optionally, the compressed air providing device includes a compressed air switch 71 and an air source, the air source is fluidly connected to the branch pipe 22 , and the compressed air switch 71 is disposed on the valve body 230 and is configured to control whether the air source provides compressed air to the corresponding branch pipe 22 .

[0078] In the above embodiment, during the intermittent period of the production of different types of cigarettes, the operator can observe whether there is any tobacco residue at the location of the control valve 23 through the transparent part of the observation section 223, and provide compressed air to the branch pipe 22 where the control valve 23 is located through the compressed air providing device. The compressed air can play a cleaning role and blow the remaining tobacco away from the location of the control valve 23 in time, thereby reducing the risk of wrong brand or mixed brand of tobacco.

[0079] refer to Figure 2 In some embodiments, the wire feeder 1 includes a wire feeding bin 11 and a connector 12. The connector 12 has an inlet end and a plurality of outlet ends, the inlet end of the connector 12 is connected to the wire feeding bin 11, and the outlet end of the connector 12 is selectively connected to the inlet end of one of the branch pipes 22.

[0080] Optionally, refer to Figure 2 The joint 12 has an inlet end and two outlet ends, and the two outlet ends include a first outlet end 121 and a second outlet end 122. Figures 3 to 5 Each branch pipe 22 consists of a first pipe section and a second pipe section, the first pipe section has a first connecting end 221 and a second connecting end 222, and the second pipe section has a third connecting end 224, wherein the first connecting end 221 is connected to one of the outlet ends of the connector 12, and the second connecting end 222 is connected to the third connecting end 224.

[0081] Optionally, the connector 12 has an air inlet 120, which is connected to the outside world so that air can flow into the connector 12 and its downstream branch pipe 22 under negative pressure, thereby completing wind-powered wire feeding.

[0082] refer to Figure 2 In some embodiments, the wire feeder 1 further comprises a connecting tube 13 and a photoelectric switch 14. The two ends of the connecting tube 13 are respectively connected between the wire feeding bin 11 and the inlet end of the joint 12, and the connecting tube 13 is transparent. The photoelectric switch 14 has a receiving end and a transmitting end correspondingly arranged on the outer wall of the connecting tube 13.

[0083] Optionally, the receiving end and the transmitting end of the photoelectric switch 14 are located on the same straight line along the radial direction of the connecting tube 13 .

[0084] In the above embodiment, the transmitting end of the photoelectric switch 14 can transmit a light signal to the receiving end of the photoelectric switch 14 through the transparent connecting tube 13. According to whether the receiving end of the photoelectric switch 14 can receive the light signal, it can be determined whether there is a tobacco blockage between the feeding bin 11 and the joint 12.

[0085] refer to Figure 1 In some embodiments, the wind wire feeding system includes a control device 61, which is signal-connected to the rolling machine 3, multiple wire feeders 1, multiple valve position detection devices 4 and multiple negative pressure detection devices 5. The control device 61 is configured to control whether the multiple wire feeders 1 provide tobacco and whether the rolling machine 3 receives tobacco according to the work order information, the valve position status information of each control valve 23 and the negative pressure status information of each branch pipe 22. The work order information is determined by the cigarette production requirements. The work order information is used to indicate that one of the wire feeders 1 is selected to provide tobacco to the rolling machine 3, so as to obtain the expected on-off status of the inlet and outlet ends of each branch pipe 22.

[0086] Optionally, the pneumatic wire feeding system further includes an MES system (Manufacturing Execution System) 62 and a human-machine interface 63, and the control device 61, the MES system 62 and the human-machine interface 63 are signal-connected to each other. Optionally, the work order information is provided by the MES system 62, and the control device 61 obtains the work order information from the MES system 62.

[0087] Optionally, the human-machine interface 63 is configured to display valve position status information of each control valve 23 and negative pressure status information of each branch pipe 22 .

[0088] Optionally, a plurality of selection buttons corresponding to a plurality of tobacco feeders 1 are provided on the human-machine interface 63, and the control device 61 is configured to generate work order information in response to the operation of any selection button if the MES system 62 cannot normally provide work order information. The work order information generated according to the selection button is used to indicate that the tobacco feeder 1 corresponding to the selection button is selected to provide tobacco to the tobacco rolling machine 3. The expected on-off state of the inlet and outlet ends of the branch pipe 22 corresponding to the selected tobacco feeder 1 is connected, and the expected on-off state of the inlet and outlet ends of the branch pipe 22 corresponding to the unselected tobacco feeder 1 is disconnected.

[0089] The control device 61 and the human-machine interface 63 can be integrated into the centralized control system of the cigarette production workshop, without the need to set up additional control devices and human-machine interfaces, thus saving costs.

[0090] In the above embodiment, the wind-powered wire feeding system can not only obtain the actual on-off status of the inlet and outlet ends of each branch pipe 22 through the valve position status information and the negative pressure status information, but also obtain the expected on-off status of the inlet and outlet ends of each branch pipe 22 through the work order information. The actual on-off status and the expected on-off status are compared with each other to form a multiple error judgment mechanism. Therefore, the wind-powered wire feeding system of the above embodiment can further reduce the probability of errors in tobacco brands during tobacco transportation. In addition, the control device 61 can control whether multiple wire feeders 1 provide tobacco and whether the rolling machine 3 receives tobacco according to the comparison results of the actual on-off status and the expected on-off status, which is conducive to reducing the labor intensity of operators.

[0091] In some embodiments, the pneumatic wire feeding system also includes an alarm device, which is connected to the control device 61 by signal. The control device 61 is configured to control whether the alarm device sends an alarm signal based on the work order information, the valve position status information of each control valve 23 and the negative pressure status information of each branch pipe 22.

[0092] Optionally, the alarm device is signal-connected to the human-machine interface 63. Optionally, the human-machine interface 63 is configured to display alarm information corresponding to the alarm signal when the alarm device sends out an alarm signal, and the alarm information includes the alarm location and the cause of the error.

[0093] refer to Figures 1 to 6 Some embodiments of the present disclosure also provide a control method for the aforementioned wind-powered wire feeding system, including: obtaining the actual on-off state of the inlet and outlet of the corresponding branch pipe 22 according to the valve position state information of each control valve 23; obtaining the actual on-off state of the inlet and outlet of the corresponding branch pipe 22 according to the negative pressure state information of each branch pipe 22; if the shutdown condition is met, the tobacco maker 3 stops receiving tobacco. The shutdown condition includes: for the inlet and outlet of any branch pipe 22, the actual on-off state obtained according to the valve position state information is different from the actual on-off state obtained according to the negative pressure state information.

[0094] Optionally, the control method of the pneumatic wire feeding system provided in the embodiment of the present disclosure is implemented based on the control device described above.

[0095] The control method of the wind wire feeding system provided by the embodiment of the present disclosure has the advantages of the aforementioned wind wire feeding system.

[0096] In some embodiments, the control method includes: determining work order information according to cigarette production requirements, the work order information is used to indicate that one of the tobacco feeders 1 is selected to provide tobacco to the tobacco rolling machine 3 to obtain the expected on-off state of the inlet and outlet ends of each branch pipe 22, and the shutdown condition also includes at least one of the following: the selected tobacco feeder 1 is not connected to the tobacco rolling machine 3 through the branch pipe 22; for the inlet and outlet ends of any branch pipe 22, the expected on-off state obtained according to the work order information is different from the actual on-off state obtained according to the valve position status information; for the inlet and outlet ends of any branch pipe 22, the expected on-off state obtained according to the work order information is different from the actual on-off state obtained according to the negative pressure status information.

[0097] If the selected wire feeder 1 and the tobacco rolling machine 3 are not connected through the branch pipe 22, that is, if the work order information indicates that the inlet and outlet ends of the branch pipe 22 corresponding to the selected wire feeder 1 are connected, but at the production site, there is actually no physical connection between the selected wire feeder 1 and the tobacco rolling machine 3, and the selected wire feeder 1 and the tobacco rolling machine 3 are not in the expected on-off state obtained according to the work order information, then the tobacco rolling machine 3 cannot obtain the required brand of tobacco from the selected wire feeder 1, which may result in wrong brand or mixed brand of tobacco.

[0098] For the inlet and outlet of any branch pipe 22, if the expected on-off state obtained according to the work order information is different from the actual on-off state obtained according to the valve position status information, that is, the work order information indicates that the inlet and outlet ends of a branch pipe 22 are disconnected and the valve position status information indicates that the inlet and outlet ends of the same branch pipe 22 are connected, or the work order information indicates that the inlet and outlet ends of a branch pipe 22 are connected and the valve position status information indicates that the inlet and outlet ends of the same branch pipe 22 are disconnected, then the control valve 23 may be in an invalid state, and the tobacco rolling machine 3 may obtain tobacco of a non-required brand from other tobacco feeding machines 1, which may cause the wrong brand or mixed brand of tobacco.

[0099] For the inlet and outlet ends of any branch pipe 22, if the expected on-off state obtained according to the work order information is different from the actual on-off state obtained according to the negative pressure status information, that is, the work order information indicates that the inlet and outlet ends of a branch pipe 22 are disconnected and the negative pressure status information indicates that the inlet and outlet ends of the same branch pipe 22 are connected, or the work order information indicates that the inlet and outlet ends of a branch pipe 22 are connected and the negative pressure status information indicates that the inlet and outlet ends of the same branch pipe 22 are disconnected, then the negative pressure detection device 5 may be in an invalid state, and the rolling machine 3 may obtain tobacco of a non-required brand from other tobacco feeders 1, which may cause wrong or mixed tobacco brands.

[0100] It can be seen that in the above embodiment, the wind-powered wire feeding system can not only obtain the actual on-off status of the inlet and outlet of each branch pipe 22 through the valve position status information and the negative pressure status information, but also obtain the expected on-off status of the inlet and outlet of each branch pipe 22 through the work order information. The actual on-off status and the expected on-off status are compared with each other to form a multiple error judgment mechanism. Therefore, the wind-powered wire feeding system can further take preventive measures such as shutting down the wire feeding machine 1 and shutting down the winding machine 3 according to the above error judgment mechanism, so as to further reduce the probability of errors in tobacco brand during tobacco transportation.

[0101] Combine the following Figure 6 The control method of the wind wire feeding system of some embodiments of the present disclosure is further explained. Figure 6 In the illustrated embodiment, the various error judgment mechanisms mentioned above may be executed sequentially. If the error judgment mechanism of the previous order indicates that the on / off status of the inlet and outlet ends of each branch pipe 22 may cause wrong or mixed tobacco, and at least one of the tobacco feeder 1 and the tobacco rolling machine 3 has been shut down, the error judgment mechanism of the next order may not be executed.

[0102] In some embodiments, reference Figure 6 The control method includes: if the selected tobacco feeder 1 is connected to the tobacco rolling machine 3 through the branch pipe 22, and for the inlet and outlet ends of any branch pipe 22, the expected on-off state obtained according to the work order information is different from the actual on-off state obtained according to the valve position state information, each tobacco feeder 1 stops providing tobacco.

[0103] In some embodiments, reference Figure 6 The control method includes at least one of the following: if for the inlet and outlet ends of any branch pipe 22, the expected on-off state obtained according to the work order information is the same as the actual on-off state obtained according to the valve position state information, and the actual on-off state obtained according to the valve position state information is different from the actual on-off state obtained according to the negative pressure state information, the tobacco feeder 1 corresponding to the branch pipe 22 stops providing tobacco; if for the inlet and outlet ends of any branch pipe 22, the expected on-off state obtained according to the work order information is the same as the actual on-off state obtained according to the negative pressure state information, and the actual on-off state obtained according to the valve position state information is different from the actual on-off state obtained according to the negative pressure state information, the tobacco feeder 1 corresponding to the branch pipe 22 stops providing tobacco.

[0104] In some embodiments, the control method includes: if the shutdown condition is met, outputting an alarm signal.

[0105] In the above embodiment, the step of outputting an alarm signal can be implemented based on the alarm device described above.

[0106] In some embodiments, different error judgment mechanisms may correspond to different alarm signals, thereby facilitating operators to quickly determine the cause and location of the error.

[0107] In some embodiments, outputting an alarm signal includes: if for the inlet and outlet ends of any branch pipe 22, the on-off state obtained according to the valve position state information and the on-off state obtained according to the negative pressure state information are different, outputting a first alarm signal.

[0108] In some embodiments, the control method includes: determining work order information according to cigarette production requirements, the work order information is used to indicate that one of the tobacco feeders 1 is selected to provide tobacco to the tobacco rolling machine 3, so as to obtain the expected on-off status of the inlet and outlet ends of each branch pipe 22, and outputting an alarm signal including at least one of the following: if the selected tobacco feeder 1 is not connected to the tobacco rolling machine 3 through the branch pipe 22, a second alarm signal is output; if for the inlet and outlet ends of any branch pipe 22, the expected on-off status obtained according to the work order information is different from the actual on-off status obtained according to the valve position status information, a third alarm signal is output; if for the inlet and outlet ends of any branch pipe 22, the expected on-off status obtained according to the work order information is different from the actual on-off status obtained according to the negative pressure status information, a fourth alarm signal is output.

[0109] In some embodiments, the control device described above can be implemented as a general processor, a programmable logic controller (PLC), a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components or any appropriate combination thereof for performing the functions described in the present disclosure.

[0110] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present disclosure rather than to limit it. Although the present disclosure has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present disclosure can still be modified or some technical features can be replaced by equivalents, which should all be included in the scope of the technical solution for protection requested by the present disclosure.

Claims

1. A wind-driven wire feeding system, characterized in that: include: A rolling machine (3) configured to roll the shredded tobacco into cigarette paper to form a cigarette; A plurality of tobacco feeders (1), wherein different tobacco feeders (1) are configured to provide tobacco of different brands to the tobacco rolling machine (3); A wire feeding pipeline, configured to transport the tobacco shreds from the wire feeder (1) to the tobacco rolling machine (3) under the action of negative pressure, comprising a main pipe (21), a plurality of branch pipes (22) and a plurality of control valves (23), wherein the inlet end of each branch pipe (22) is selectively connected to one of the wire feeders (1), the outlet end of each branch pipe (22) is connected to the inlet end of the main pipe (21), and the outlet end of the main pipe (21) is connected to the tobacco rolling machine (3), and the plurality of control valves (23) are correspondingly arranged on the plurality of branch pipes (22), wherein the control valve (23) comprises a valve body (230) and a switching component (231), wherein the position of the switching component (231) relative to the valve body (230) is adjustable, so that the inlet end and the outlet end of the corresponding branch pipe (22) are connected or disconnected by opening or closing the control valve (23); A plurality of valve position detection devices (4) are provided corresponding to the plurality of control valves (23) and are configured to detect valve position status information, wherein the valve position status information is used to indicate the position of the switching component (231) relative to the valve body (230) so as to obtain the actual on / off status of the inlet and outlet ends of the corresponding branch pipes (22); and A plurality of negative pressure detection devices (5) are provided corresponding to the plurality of branch pipes (22), and are configured to detect negative pressure status information, wherein the negative pressure status information is used to indicate whether the absolute value of the negative pressure in the corresponding branch pipe (22) is greater than or equal to a preset value, so as to obtain the actual on-off status of the inlet and outlet ends of the corresponding branch pipe (22).

2. The wind-driven wire feeding system according to claim 1, characterized in that: The valve position detection device (4) comprises a travel switch, and the switching component (231) is movably arranged between a first position and a second position. In the first position, the switching component (231) disconnects the inlet end and the outlet end of the corresponding branch pipe (22), and the travel switch is in a triggered state. In the second position, the inlet end and the outlet end of the corresponding branch pipe (22) are connected, and the travel switch is in a non-triggered state.

3. The wind-driven wire feeding system according to claim 2, characterized in that: The action stroke of the travel switch is adjustable.

4. The wind-driven wire feeding system according to claim 1, characterized in that: The preset value of the negative pressure detection device (5) is adjustable.

5. The wind-driven wire feeding system according to claim 1, characterized in that: The branch pipe (22) has an observation section (223), at least a part of which is transparent, and the observation section (223) is arranged at the downstream end of the control valve (23) along the tobacco conveying direction; The wind-powered wire feeding system comprises a plurality of compressed air supply devices correspondingly arranged on the plurality of branch pipes (22), and the compressed air supply devices are configured to supply compressed air into the branch pipes (22) so as to blow the tobacco on the control valve (23) away from the control valve (23).

6. The wind-driven wire feeding system according to claim 1, characterized in that: The wire feeding machine (1) comprises: A wire feeding bin (11); and The connector (12) has an inlet end and a plurality of outlet ends. The inlet end of the connector (12) is connected to the wire feeding bin (11), and the outlet end of the connector (12) is selectively connected to the inlet end of one of the branch pipes (22).

7. The wind-driven wire feeding system according to claim 6, characterized in that: The wire feeding machine (1) further comprises: A connecting pipe (13), both ends of which are respectively connected between the wire feeding bin (11) and the inlet end of the joint (12), and the connecting pipe (13) is transparent; and The photoelectric switch (14) has a receiving end and a transmitting end which are correspondingly arranged on the outer wall of the connecting tube (13).

8. The pneumatic wire feeding system according to any one of claims 1 to 7, characterized in that: The invention comprises a control device (61), wherein the control device (61) is connected to the rolling machine (3), a plurality of the tobacco feeders (1), a plurality of the valve position detection devices (4) and a plurality of the negative pressure detection devices (5) by signals, and the control device (61) is configured to control whether the plurality of tobacco feeders (1) provide tobacco and whether the rolling machine (3) receives tobacco according to work order information, the valve position status information of each control valve (23) and the negative pressure status information of each branch pipe (22), wherein the work order information is determined by cigarette production requirements, and the work order information is used to indicate that one of the tobacco feeders (1) is selected to provide tobacco to the rolling machine (3) so as to obtain the expected on / off status of the inlet and outlet ends of each branch pipe (22).

9. The wind-driven wire feeding system according to claim 8, characterized in that: It also includes an alarm device, which is connected to the control device (61) by signal, and the control device (61) is configured to control whether the alarm device sends an alarm signal based on the work order information, the valve position status information of each control valve (23) and the negative pressure status information of each branch pipe (22).

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