Tobacco discharging system and cigarette production equipment
By introducing a tobacco discharge system into cigarette production equipment and using encoders and PLCs to control the operating frequency of the bottom belt motor, the problem of unstable tobacco discharge was solved, automated control was achieved, and the discharge stability and product quality were improved.
Patent Information
- Application Number
- CN202423109664.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-17
AI Technical Summary
In the cigarette production process, unstable tobacco output flow can lead to material blockage, machine shutdown, and material shortage, affecting product quality.
The tobacco discharging system includes a storage tank, a discharge flow acquisition device, and a control device. The discharge flow parameters are acquired through an encoder, and the operating frequency of the bottom belt motor is controlled by a frequency converter and a PLC to achieve automated control of the discharge flow.
It improves the stability and flexibility of tobacco output, reduces the workload of operators, lowers hardware costs, meets the automated production needs of tobacco companies, and improves product quality.
Smart Images
Figure CN223632213U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to tobacco production technical field especially a tobacco discharge system and cigarette production equipment. BACKGROUND
[0002] In the cigarette production process, tobacco is stored in a storage cabinet and is sent out of the cabinet by a feeding mechanism.
[0003] The operating personnel usually manually controls the running frequency (i.e., the cabinet discharge frequency) of the feeding mechanism according to experience. In order to ensure that the production line has sufficient logistics and does not run out of material, the operating personnel often sets a large cabinet discharge frequency. A large cabinet discharge frequency may cause material blockage and shutdown, which requires the feeding mechanism to frequently start and stop, resulting in unstable discharge flow. SUMMARY
[0004] In related technologies, the quality of tobacco products is not high. The inventors have found through research that this is because the stability of the discharge flow is poor.
[0005] To solve the above problems, the embodiments of the utility model provide a solution with good discharge stability.
[0006] According to a first aspect of the embodiments of the utility model, a tobacco discharge system is provided, characterized in that it comprises a storage cabinet device, a discharge flow acquisition device, and a control device, the control device is electrically connected with the storage cabinet device and the discharge flow acquisition device; the storage cabinet device comprises a storage cabinet and a feeding mechanism, the storage cabinet is used for storing tobacco material, the feeding mechanism comprises a bottom belt, a transmission assembly, and a bottom belt motor, the bottom belt motor is used to drive the transmission assembly to drive the bottom belt to run, so that the bottom belt sends the tobacco material in the storage cabinet out of the storage cabinet from the discharge end; and the discharge flow acquisition device is used to acquire the discharge flow parameter of the tobacco material sent out by the feeding mechanism and output the discharge flow parameter to the control device.
[0007] In some embodiments, the discharge flow acquisition device comprises an encoder, the encoder is installed in the transmission assembly and is used to rotate following the operation of the transmission assembly to acquire a rotation code value as the discharge flow parameter.
[0008] In some embodiments, the transmission assembly comprises a driving shaft, a driven shaft, and a side chain, the side chain is used to connect the driving shaft and the driven shaft, the bottom belt is wound around the driving shaft and the driven shaft, the bottom belt motor is used to drive the driving shaft, so that the driving shaft drives the driven shaft via the side chain to drive the bottom belt to run, wherein the encoder is installed on the shaft center of the driving shaft or the driven shaft.
[0009] In some embodiments, the encoder is mounted on the shaft center of the passive shaft.
[0010] In some embodiments, the transmission assembly comprises a plurality of the passive shafts, and the encoder is mounted on the shaft center of one passive shaft located at the tail of the bottom belt opposite to the discharge end.
[0011] In some embodiments, the storage cabinet device further comprises a poking roller and a poking roller motor, the poking roller motor is used to drive the poking roller, and the poking roller is used to loosen the tobacco material when the tobacco material is transported out of the storage cabinet.
[0012] In some embodiments, the storage cabinet device further comprises a frequency converter, the frequency converter is used to control the operating frequency of the bottom belt motor, thereby controlling the speed of the operation of the bottom belt, and the control device is used to control the frequency converter based on the discharge flow parameter to control the operating frequency of the bottom belt motor.
[0013] In some embodiments, the control device comprises an input / output module, a motor driver and a programmable logic controller (PLC), the input / output module is used to collect the discharge flow parameter in real time and send it to the PLC, and the PLC is used to control the motor driver based on the discharge flow parameter to control the frequency converter, thereby controlling the operating frequency of the bottom belt motor.
[0014] According to the second aspect of the embodiments of the utility model, the utility model further provides a cigarette production equipment, which comprises the tobacco discharge system according to any one of the preceding embodiments.
[0015] In the technical scheme according to the aspects of the utility model, the discharge flow acquisition device can output the discharge flow parameter to the control device, so that the control device can control the feeding speed of the feeding mechanism based on the discharge flow parameter, the feeding mechanism does not need to be frequently started and stopped, the stability and flexibility of the discharge of the tobacco material in the storage cabinet are improved, and the processing quality of the tobacco is improved.
[0016] In addition, the tobacco discharge system has simple structure, needs to install few control devices, has good control effect and is fully automatically controlled. On the one hand, the operation personnel do not need to manually control the cabinet discharge frequency, which is beneficial to reducing the workload of the operation personnel and reducing the labor cost. On the other hand, the hardware cost is low, which is beneficial to reducing the production cost of enterprises, meets the production demands of automation, modularization and diversification of tobacco enterprises and is suitable for popularization and application in tobacco production.
[0017] The technical scheme of the utility model will be further described in detail below with reference to the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below only show some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0019] Figure 1 is a structural schematic diagram of a tobacco discharging system according to some embodiments of the present application. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.
[0021] Unless otherwise specified, the relative arrangement, numerical expressions and values of the components and steps set forth in these embodiments do not limit the scope of the present application.
[0022] It should be understood that the sizes of the various parts shown in the drawings are not drawn in accordance with the actual proportional relationship for the convenience of description.
[0023] The technology, methods and devices known to those skilled in the relevant art can not be discussed in detail, but should be considered as part of the specification under appropriate circumstances.
[0024] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments can have different values.
[0025] It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
[0026] Figure 1 is a structural schematic diagram of a tobacco discharging system according to some embodiments of the present application.
[0027] As shown in Figure 1 , the tobacco discharging system comprises a storage cabinet device, a discharging flow acquisition device and a control device 7, the control device 7 is electrically connected with the storage cabinet device and the discharging flow acquisition device.
[0028] The storage tank device comprises a storage tank 14 and a feeding mechanism. The storage tank 14 is used for storing tobacco material 13. The feeding mechanism is located at the bottom of the storage tank 14, and the feeding mechanism comprises a bottom belt 8, a transmission assembly and a bottom belt motor 5. The bottom belt 8 is, for example, a belt. The bottom belt motor 5 is used to drive the transmission assembly to drive the bottom belt 8 to run, so that the bottom belt 8 carries the tobacco material 13 in the storage tank 14 out of the storage tank 14 from the discharge end.
[0029] The discharge flow acquisition device is used for acquiring a discharge flow parameter of the tobacco material 13 sent out by the feeding mechanism, and outputting the discharge flow parameter to the control device 7.
[0030] In the above embodiment, the discharge flow acquisition device can output the discharge flow parameter to the control device, so that the control device can control the feeding speed of the feeding mechanism based on the discharge flow parameter, so that the feeding mechanism does not need to be frequently started and stopped, which is beneficial to improve the stability and flexibility of the discharge of the tobacco material in the storage tank, and further improve the processing quality of the tobacco.
[0031] Secondly, the tobacco discharge system has a simple structure, needs to install few control devices, has good control effect and is fully automatically controlled. On the one hand, the operation personnel do not need to manually control the discharge frequency, which is beneficial to reduce the workload of the operation personnel and reduce the labor cost; on the other hand, the hardware cost is low, which is beneficial to reduce the production cost of the enterprise, meet the production demands of automation, modularization and diversification of the tobacco enterprise, and is suitable for popularization and application in the tobacco production.
[0032] Finally, in the actual production process, the stacking heights of the tobacco materials in different storage tanks are usually different. For example, different types of tobacco materials usually have different stacking heights. When the operation personnel set the discharge frequency, the same discharge frequency is set for all the storage tanks. When the same discharge frequency is used, the discharge flow of the tobacco material with a large stacking height will be greater than the discharge flow of the tobacco material with a small stacking height. Therefore, the same discharge frequency cannot meet the demands of different storage tanks, so that the discharge flow of part of the storage tanks is too large, and the discharge flow of another part of the storage tanks is too small. When the discharge flow is too large or even exceeds the upper limit, it will cause material blocking and stop, which will affect the product quality; when the discharge flow is too small, the material will be broken, which will also affect the production quality. In the above embodiment, the control device can individually control the feeding speed of the feeding mechanism based on the discharge flow parameter, which is beneficial to enable each of the multiple storage tanks to maintain a relatively appropriate discharge flow, and is beneficial to improve the processing quality of the tobacco.
[0033] In some embodiments, the discharge flow acquisition device comprises an encoder 11, which is installed in the transmission assembly and is used to rotate with the running of the transmission assembly to acquire a rotating code value as the discharge flow parameter.
[0034] In the above embodiment, the encoder is used to obtain the discharge flow, and the encoder has the advantages of high detection accuracy, good device stability and long service life, and can effectively improve the accuracy of the obtained discharge flow. In view of the frequent start-stop problem existing in the tobacco production process, the encoder can effectively process the fragmented pause time and provide accurate rotation code value for subsequent control device to control based on the discharge flow parameter.
[0035] In some embodiments, the discharge flow obtaining device comprises a counting gear, which is installed in the transmission assembly and rotates to follow the operation of the transmission assembly to obtain the number of rotations as the discharge flow parameter.
[0036] In some embodiments, the discharge flow obtaining device can calculate the discharge flow through the operation frequency and operation time of the bottom belt motor 5.
[0037] In some embodiments, the transmission assembly comprises a driving shaft 4, a driven shaft 10 and a side chain 9, the side chain 9 is used to connect the driving shaft 4 and the driven shaft 10, the bottom belt 8 is wound around the driving shaft 4 and the driven shaft 10, and the bottom belt motor 5 is used to drive the driving shaft 4 so that the driving shaft 4 drives the driven shaft 10 through the side chain 9 to drive the bottom belt 8 to operate. Here, the encoder 11 is installed on the shaft center of the driving shaft 4 or the driven shaft 10, and the encoder 11 can rotate coaxially with the driving shaft 4 or the driven shaft 10.
[0038] In the above embodiment, the encoder 11 is installed on the shaft center of the driving shaft 4 or the driven shaft 10, so that the rotation code value of the encoder 11 can accurately reflect the operation of the transmission assembly, thereby accurately reflecting the discharge flow.
[0039] In other embodiments, the transmission assembly comprises at least two driving shafts, does not comprise a side chain, and the bottom belt is wound around the at least two driving shafts. The bottom belt motor 5 is used to drive the at least two driving shafts to move to drive the bottom belt to operate. Here, the encoder 11 is installed on the shaft center of the driving shaft.
[0040] In some embodiments, as shown in Figure 1 the encoder 11 is installed on the shaft center of the driven shaft 10 and can rotate coaxially with the driven shaft 10. The driven shaft 10 is located at the tail of the storage cabinet 14 opposite to the discharge end. The encoder 11 is installed at the position located at the tail of the storage cabinet 14, so that the encoder 11 is far away from the discharge end of the storage cabinet, facilitating maintenance.
[0041] In some embodiments, the transmission assembly comprises a plurality of driven shafts, and the encoder 11 is installed on the shaft center of one driven shaft (for example, the driven shaft 11) located at the tail of the storage cabinet 14 opposite to the discharge end. The encoder 11 is installed at the position located at the tail of the storage cabinet 14, so that the encoder 11 is far away from the discharge end of the storage cabinet, facilitating maintenance.
[0042] In some embodiments, the silo device further comprises a poking roller 3 and a poking roller motor 2. The poking roller motor 2 is configured to drive the poking roller 3, and the poking roller 3 is configured to loosen the tobacco material 13 when the tobacco material 13 is being transported out of the silo 14.
[0043] In some embodiments, the silo device further comprises a frequency converter 6, which is configured to control the operating frequency of the bottom belt motor 5, and thus the speed of the bottom belt 8. The control device 7 is configured to control the frequency converter 6 based on the discharge flow parameter, so as to control the operating frequency of the bottom belt motor 5.
[0044] In some embodiments, the control device 7 comprises a programmable automation controller (PLC) 71, an input / output module 72, and a motor driver 73. The input / output module 72 is configured to collect the discharge flow parameter in real time and send it to the PLC 71. The PLC 71 is configured to control the motor driver 73 based on the discharge flow parameter, so as to control the frequency converter 6, and thus the operating frequency of the bottom belt motor 5.
[0045] In some embodiments, the control device 7 controls the operating frequency of the bottom belt motor 5 based on the discharge flow parameter comprises calculating the remaining percentage P of the tobacco material 13 in the silo 14 based on the discharge flow parameter, and controlling the frequency converter 6 based on the remaining percentage P of the tobacco material 13 in the silo 14, so as to control the operating frequency of the bottom belt motor 5.
[0046] For example, the count value Z of the encoder 11 rotation code value since the silo starts to discharge is recorded, and the total count of the encoder 11 rotation code value when the entire silo 14 is emptied is Zsp. Then, the remaining percentage P of the tobacco material 13 in the silo 14 can be calculated by
[0047] In some embodiments, the control device 7 can control the frequency converter 6 based on whether the remaining percentage P of the tobacco material 13 in the silo 14 is within a preset range, so as to control the operating frequency of the bottom belt motor 5. For simplicity of description, “the control device 7 controls the frequency converter 6, so as to control the operating frequency of the bottom belt motor 5” is referred to as “the control device 7 controls the operating frequency of the bottom belt motor 5” hereinafter.
[0048] As some implementations, when the remaining percentage P of the tobacco material 13 in the bin 14 is in a preset range, the running frequency of the bottom belt motor 5 is controlled based on the weight or height of the tobacco material 13 in the bin 14. When the remaining percentage P of the tobacco material 13 in the bin 14 is not in the preset range, the control device 7 controls the running frequency of the bottom belt motor 5 to be the maximum frequency. The control of the running frequency of the bottom belt motor 5 based on the weight or height of the tobacco material 13 in the bin 14 can be referred to as entering a stable discharging state, and the control of the running frequency of the bottom belt motor 5 to be the maximum frequency can be referred to as entering a fast discharging state.
[0049] For example, the preset range is set as [P1, P2], when the remaining percentage P of the tobacco material 13 in the bin 14 is greater than or equal to P1 and less than or equal to P2, the running frequency of the bottom belt motor 5 is controlled based on the weight or height of the tobacco material 13 in the bin 14. When the remaining percentage P of the tobacco material 13 in the bin 14 is less than P1 or greater than P2, the running frequency of the bottom belt motor 5 is controlled to be the maximum frequency.
[0050] In the above embodiments, when the remaining percentage P of the tobacco material 13 in the bin 14 is in the preset range, the running frequency of the bottom belt motor 5 is controlled based on the weight or height of the tobacco material 13 in the bin 14, which is beneficial to improve the stability of discharging and ensure that the current flow rate does not cause the downstream equipment to frequently start and stop. When the remaining percentage P of the tobacco material 13 in the bin 14 is not in the preset range, the running frequency of the bottom belt motor 5 is controlled to be the maximum frequency, which is beneficial to improve the discharging efficiency.
[0051] The discharging of the material from the bin can be roughly understood as the longitudinal slicing of the tobacco material 13 in the bin 14, and different discharging frequencies result in different thicknesses of the slices per unit time. As shown in FIG. 1, the tobacco material 13 is not a cuboid when it is stacked, and the leftmost and rightmost stacks are inclined, which results in less amount of the tobacco material 13 on the left side of the boundary line 1 and on the right side of the boundary line 12. Figure 1
[0052] In some embodiments, the preset range [P1, P2] can be determined based on the stacking condition of the tobacco material 13, so that when the current discharging position of the tobacco material 13 is on the left side of the boundary line 1 and on the right side of the boundary line 12, the control device 7 controls the running frequency of the bottom belt motor 5 to be the maximum frequency. When the current discharging position of the tobacco material 13 is in the middle of the boundary line 1 and the boundary line 12, the control device 7 controls the running frequency of the bottom belt motor 5 based on the weight or height of the tobacco material 13 in the bin 14.
[0053] In some embodiments, the operation frequency of the bottom belt motor 5 is controlled based on the weight or height of the tobacco material 13 in the storage bin 14, including: determining the relationship between the weight of the tobacco material 13 in the storage bin 14 and the operation frequency of the bottom belt motor 5 in advance, and controlling the operation frequency of the bottom belt motor 5 based on the weight of the tobacco material 13 in the storage bin 14. For example, a correlation coefficient a between the discharge frequency of the storage bin 14 and the weight of the material in the storage bin 14 can be determined in advance, so as to calculate the operation frequency of the bottom belt motor 5 based on the weight of the material in the storage bin 14.
[0054] In the above embodiments, the weight of the tobacco material 13 is easy to obtain, and the operation frequency of the bottom belt motor 5 is controlled according to the weight of the tobacco material 13, which is simple to implement.
[0055] In other embodiments, the operation frequency of the bottom belt motor 5 is controlled based on the weight or height of the tobacco material 13 in the storage bin 14, including: determining the relationship between the height of the tobacco material 13 in the storage bin 14 and the operation frequency of the bottom belt motor 5 in advance, calculating the height of the tobacco material 13 in the storage bin 14 based on the weight, and controlling the operation frequency of the bottom belt motor 5 based on the height.
[0056] Since the height of the tobacco material 13 is directly related to the discharge flow rate of the tobacco material 13, the control of the operation frequency of the bottom belt motor 5 based on the relationship between the height and the operation frequency of the bottom belt motor 5 is more accurate.
[0057] In yet other embodiments, the operation frequency of the bottom belt motor 5 is controlled based on the weight or height of the tobacco material 13 in the storage bin 14, including: directly obtaining the height of the tobacco material 13 in the storage bin 14 based on the sensor, and controlling the operation frequency of the bottom belt motor 5 based on the height of the tobacco material 13 in the storage bin 14.
[0058] In the above embodiments, the height of the tobacco material 13 in the storage bin 14 is directly obtained based on the sensor, which is beneficial to obtaining more accurate height data, so that the control of the operation frequency of the bottom belt motor 5 is more accurate.
[0059] The utility model also provides a cigarette production equipment, including the tobacco discharge system according to any one of the above embodiments.
[0060] So far, the embodiments of the utility model have been described in detail. In order to avoid obscuring the concept of the utility model, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein according to the above description.
[0061] Those skilled in the art will understand that embodiments of this invention can be provided as methods, systems, or computer program products. Therefore, this invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this invention can take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.
[0062] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It should be understood that one or more flows in the flowchart and / or one or more blocks in the block diagram can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing device, generate instructions for implementing the functions specified in the flowchart. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.
[0063] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.
[0064] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.
[0065] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.
Claims
1. A tobacco outfeed system characterised in that, The system comprises a storage device, a discharge flow acquisition device and a control device, wherein the control device is electrically connected with the storage device and the discharge flow acquisition device; The storage device comprises a storage bin and a feeding mechanism, wherein the storage bin is used for storing tobacco material, and the feeding mechanism comprises a bottom belt, a transmission assembly and a bottom belt motor, wherein the bottom belt motor is used for driving the transmission assembly to drive the bottom belt to run, so that the bottom belt transports the tobacco material in the storage bin out of the storage bin from a discharge end; The discharge flow acquisition device is used for acquiring a discharge flow parameter of the tobacco material sent out by the feeding mechanism and outputting the discharge flow parameter to the control device. The discharge flow acquisition device comprises an encoder, wherein the encoder is installed in the transmission assembly and used for rotating to follow the running of the transmission assembly, so as to acquire a rotating code value as the discharge flow parameter.
2. The tobacco outfeed system of claim 1, wherein, The transmission assembly comprises a driving shaft, a driven shaft and a side chain, wherein the side chain is used for connecting the driving shaft and the driven shaft, the bottom belt is wound around the driving shaft and the driven shaft, and the bottom belt motor is used for driving the driving shaft, so that the driving shaft drives the driven shaft via the side chain to drive the bottom belt to run, wherein the encoder is installed on the shaft center of the driving shaft or the driven shaft.
3. The tobacco outfeed system of claim 2, wherein, The encoder is installed on the shaft center of the driven shaft.
4. The tobacco outfeed system of claim 3, wherein, The transmission assembly comprises a plurality of driven shafts, and the encoder is installed on the shaft center of one driven shaft located at the tail of the storage bin opposite to the discharge end.
5. The tobacco outfeed system of claim 4, wherein, The storage device further comprises a poking roller and a poking roller motor, wherein the poking roller motor is used for driving the poking roller, and the poking roller is used for loosening the tobacco material when the tobacco material is transported out of the storage bin.
6. The tobacco outfeed system of any one of claims 1 to 5, wherein, The storage device further comprises a frequency converter, wherein the frequency converter is used for controlling the running frequency of the bottom belt motor, so as to control the running speed of the bottom belt; and 7. A tobacco outfeed system according to any one of claims 1 to 5, wherein, The control device is used for controlling the frequency converter based on the discharge flow parameter, so as to control the running frequency of the bottom belt motor. The control device comprises an input / output module, a motor driver and a programmable logic controller (PLC); 8. The tobacco outfeed system of claim 7, wherein, The input / output module is used for collecting the discharge flow parameter in real time and sending the discharge flow parameter to the PLC; and The PLC is used for controlling the motor driver based on the discharge flow parameter, so as to control the frequency converter and the running frequency of the bottom belt motor. The system comprises the tobacco discharge system according to any one of claims 1 to 8.
9. A cigarette making apparatus, characterized by,