Buffer control method and device for tipping paper

Abstract

The invention discloses a tipping paper buffer control method and device, and the method comprises the steps: obtaining the ranging distance of a paper tape in real time, the ranging distance being the distance from the highest point of the paper tape sucked into a buffer to a range finder; calculating the buffer length of the paper tape according to the ranging distance, wherein the buffer length is the total length of the paper tape sucked into the buffer; and when the buffering length exceeds a preset buffering area, the output speed and / or the input speed of the paper tape are / is adjusted. According to the length of the paper tape between the double-end equipment, the running speed of the double-end equipment on the paper tape is regulated and controlled, so that the length of the paper tape between the double-end equipment is always kept stable, and the running stability of the equipment is improved.

Description

Technical Field

[0001] The present application relates to the technical field of tipping paper conveying control, and in particular to a tipping paper buffering control method and device. Background Art

[0002] During cigarette processing and production, cigarette tipping paper needs to be output from one device in the form of a paper tape, and the paper tape needs to be guided into another device for splicing of the tipping paper to complete cigarette processing and production.

[0003] In the actual production process, the linear speeds of the output roller of the output device and the input roller of the input device cannot be completely consistent, which causes the length of the tipping paper to fluctuate. Tipping paper that is too long or too short is not conducive to production. When it is too long, it is easy to cause the running posture of the tipping paper itself to be unstable, such as folding, knotting and other problems; when it is too short, it is easy to cause the tipping paper to break, tear and other problems.

[0004] Therefore, it is an urgent problem to maintain a reasonable and stable length of the paper tape between the double-end devices (ie, the input device and the output device) and ensure the stable operation of the paper tape. Summary of the invention

[0005] In order to solve the above problems, the embodiments of the present application provide a buffer control method and device for kraft paper, which regulates the running speed of the paper tape of the double-end device by adjusting the length of the paper tape between the double-end devices, so that the length of the paper tape between the two devices always remains stable, thereby improving the stability of the equipment operation.

[0006] In a first aspect, an embodiment of the present application provides a buffer control method for tipping paper, the method comprising: Acquire the ranging distance of the paper tape in real time, wherein the ranging distance is the distance from the highest point of the paper tape sucked into the buffer to the rangefinder; Calculating the buffer length of the paper tape according to the ranging distance, the buffer length being the total length of the paper tape sucked into the buffer; When the buffer length exceeds a preset buffer interval, the output speed and / or input speed of the paper tape is adjusted.

[0007] Preferably, the real-time acquisition of the ranging distance of the paper tape specifically includes: Preset ranging frequency; Detection data of the rangefinder is continuously acquired at the ranging frequency, and output as the ranging distance.

[0008] Preferably, before calculating the buffer length of the paper tape according to the ranging distance, the method further comprises: A calculation model for measuring the running track of the paper tape in the buffer at different ranging distances; the calculation model includes a track model of the paper tape, a first measurement parameter and a second measurement parameter, and the first measurement parameter and the second measurement parameter are used to calculate the buffer length in conjunction with the track model; Associating and binding the calculation model with the corresponding ranging distance and outputting them as a matching form; When the ranging distance is obtained, the corresponding calculation model is indexed in the matching table.

[0009] Preferably, the running track includes a circular arc segment at the top and straight-line curve segments connected to the end points on both sides of the arc segment; The trajectory model includes an arc segment at the top and straight line segments connected to both sides of the endpoints of the arc segment; The determination of the first measurement parameter and the second measurement parameter comprises: Calculating the mean radius and circumferential proportion of the arc segment, and outputting them as the first measurement parameter of the arc segment; Obtain the distance measured, and draw the straight line segments from the two end points of the arc segment to the two sides of the suction port of the buffer at the height of the arc segment; Respectively calculating the height and inclination of the straight line segments on both sides, and outputting them as second measurement parameters of the straight line segments; the second measurement parameters include the height and inclination of the two straight line segments; The height is the vertical height from the end point of the arc segment to the suction port, and the inclination angle is the inclination angle of the straight line segment; The calculation model includes a first measured parameter and a second measured parameter.

[0010] Preferably, calculating the height of the straight line segment specifically includes: Obtaining a fixed distance between the rangefinder and the suction port; Calculate the size height of the arc segment according to the mean radius and the circumferential proportion, and the size height is the distance between the highest point of the arc segment and the two end points; The ranging distance is obtained, and the height of the straight line segment is calculated according to the fixed distance, the ranging distance, and the dimension height.

[0011] Preferably, the step of calculating the buffer length of the paper tape according to the ranging distance specifically includes: Obtaining the ranging distance; Based on the matching table, extracting a calculation model corresponding to the ranging distance; The buffer length is calculated based on the first measured parameter and the second measured parameter in the calculation model.

[0012] Preferably, when the buffer length exceeds a preset buffer interval, adjusting the output speed and / or input speed of the paper tape specifically includes: Presetting the buffer zone, wherein the buffer zone includes an upper limit value and a lower limit value; Obtain the buffer length, and determine whether the buffer length is within the buffer area: When the buffer length is within the buffer space, no response is given; When the buffer length exceeds the upper limit, reducing the output speed and / or increasing the input speed; When the buffer length exceeds the lower limit, the output speed is increased and / or the input speed is decreased.

[0013] In a second aspect, an embodiment of the present application provides a buffer control device for tipping paper, the device comprising: Paper tape ranging module: obtain the ranging distance of the paper tape in real time. The ranging distance is the distance from the highest point of the paper tape sucked into the buffer to the rangefinder; Length calculation module: calculates the buffer length of the paper tape according to the ranging distance. The buffer length is the total length of the paper tape sucked into the buffer. Speed ​​control module: when the buffer length exceeds the preset buffer interval, adjust the output speed and / or input speed of the paper tape.

[0014] In a third aspect, an embodiment of the present application provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the steps of the method provided in the first aspect or any possible implementation of the first aspect are implemented.

[0015] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method provided in the first aspect or any possible implementation manner of the first aspect.

[0016] The beneficial effects of the present invention are: The present invention relates to a buffer control method and device for tipping paper, which regulates the running speed of a double-end device based on the buffer length of a paper tape, so that the output speed of the paper tape matches the input speed, thereby ensuring the stability of the length of the paper tape and the stable operation of the production line.

[0017] The present application constructs a calculation model of the paper tape sucked into the buffer based on the length of the paper tape sucked in, establishes a matching form between the ranging distance and the calculation model, directly associates the ranging distance with the running trajectory, and calculates the length according to the running trajectory of the paper tape in the buffer, so as to accurately calculate the buffer length of the paper tape. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic flow chart of a buffer control method for tipping paper provided in an embodiment of the present application; Figure 2 A schematic structural diagram of a buffer control device for tipping paper provided in an embodiment of the present application; Figure 3 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application; Figure 4 is a schematic diagram of the paper tape being sucked into the buffer; Figure 5 This is a schematic diagram of the paper tape being sucked into the buffer for too long; Figure 6 Schematic diagram of the paper tape length calculation model. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0021] In the following introduction, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The following introduction provides multiple embodiments of the present application, and different embodiments can be replaced or combined, so the present application can also be considered to include all possible combinations of the same and / or different embodiments recorded. Therefore, if one embodiment includes features A, B, and C, and another embodiment includes features B and D, then the present application should also be considered to include embodiments containing one or more of all other possible combinations of A, B, C, and D, although the embodiment may not be clearly recorded in the following text.

[0022] The following description provides examples and does not limit the scope, applicability or examples set forth in the claims. Changes may be made to the functions and arrangements of the elements described without departing from the scope of the present application. Various processes or components may be appropriately omitted, substituted or added to each example. For example, the described method may be performed in an order different from the order described, and various steps may be added, omitted or combined. In addition, features described in some examples may be combined in other examples.

[0023] See also Figure 1 , Figure 1 : is a flow chart of a buffer control method of tipping paper provided in an embodiment of the present application. In the embodiment of the present application, the method comprises: S101. Acquire the ranging distance of the paper tape in real time, where the ranging distance is the distance from the highest point of the paper tape sucked into the buffer to the distance meter.

[0024] The execution entity of the present application can be a buffer located between the two-end devices. The buffer establishes a communication connection with the two-end devices to send control instructions to the two-end devices. The specific instructions include increasing / decreasing the operating speed of the two-end devices. The operating speed of the output device is the output speed of the output roller to the paper tape, and the operating speed of the input device is the input speed of the input roller to the paper tape.

[0025] See also Figure 4 , Figure 5 A negative pressure port is arranged at the upper end of the buffer to evacuate the inner cavity to provide power for adsorbing the paper tape, thereby sucking the paper tape into the inner cavity; a distance meter is arranged at the center of the top of the buffer to detect the distance between the paper tape and the distance meter; the suction port of the buffer is the lower port, and guide rollers can be arranged on the opposite side walls of the suction port to guide the paper tape in and out of the suction port to avoid damaging the paper tape.

[0026] Among them, the output end corresponds to the output device of the tipping paper, and the output device provides the tipping paper; the input end corresponds to the input device of the tipping paper, and the input device consumes the tipping paper for manufacturing cigarettes.

[0027] Based on the actual situation, when the length of the paper tape in the buffer changes, the paper tape presents different running trajectories in the buffer. When calculating the length of the paper tape in the buffer, the change of the paper tape trajectory should be considered to accurately calculate the length of the paper tape.

[0028] The change of the paper tape trajectory is caused by the change of the paper tape length. The change of the paper tape length directly affects the detection data of the rangefinder. Therefore, the detection data of the rangefinder can be associated and bound with the paper tape trajectory. After obtaining the detection of the rangefinder, the corresponding paper tape trajectory can be matched, and then the buffer length of the paper tape in the buffer can be calculated.

[0029] In one possible implementation, the detection data of the rangefinder can be obtained in real time to obtain the ranging distance. According to the ranging distance, it is possible to directly judge whether the buffer length of the paper tape is reasonable. In this case, there is no need to accurately calculate the buffer length. Of course, the buffer length can also be estimated based on the ranging distance, but the buffer length estimated without the support of the trajectory model is inaccurate, but it can still be used to judge whether the length of the paper tape in the buffer is reasonable.

[0030] For example, taking the ranging distance of 15 cm as the standard, when the ranging distance is less than 10 cm, it can be considered that the buffer length of the paper tape is too long; when the ranging distance is greater than 20 cm, it can be considered that the buffer length of the paper tape is too short.

[0031] In the specific implementation process, the paper tape can be measured at a fixed frequency to monitor the change in the length of the paper tape. The ranging frequency can be preset to continuously obtain the detection data of the rangefinder at the ranging frequency and output it as the ranging distance. Sampling the detection data of the rangefinder at the ranging frequency can effectively reduce energy consumption and at the same time, achieve the effect of real-time monitoring.

[0032] S102, calculating the buffer length of the paper tape according to the ranging distance, where the buffer length is the total length of the paper tape sucked into the buffer.

[0033] In the embodiment of the present application, the buffer length of the paper tape can be directly estimated according to the ranging distance without considering the trajectory of the paper tape. The length of the paper tape can be calculated multiple times at different ranging distances to calculate the average length of the paper tape corresponding to each ranging distance, and a mapping relationship between the ranging distance and the average length is established. In the subsequent use process, the buffer length of the paper tape can be directly obtained based on the mapping relationship according to the ranging distance obtained in real time, and subsequent operations can be performed according to the buffer length.

[0034] In an embodiment of the present application, the running trajectory of the paper tape in the buffer can be considered to calculate the length of the paper tape to obtain a relatively accurate buffer length, a calculation model is constructed according to the running trajectory of the paper tape, and the buffer length is calculated based on the calculation model.

[0035] A matching table between the calculation model and the ranging distance can be constructed first, and then the buffer length of the paper tape can be calculated according to the ranging distance.

[0036] As a feasible embodiment, constructing a matching form specifically includes: A calculation model for measuring the running track of the paper tape in the buffer at different ranging distances; the calculation model includes a track model of the paper tape, a first measurement parameter and a second measurement parameter, and the first measurement parameter and the second measurement parameter are used to calculate the buffer length in conjunction with the track model; The calculation model is associated and bound with the corresponding ranging distance and output as a matching form.

[0037] In the embodiments of the present application, the ranging distance can be divided more finely, the running track of the paper tape at each ranging distance can be measured, and a calculation model can be constructed to make the calculation model more similar to the actual running track.

[0038] In subsequent use, when the ranging distance is obtained, the corresponding calculation model is indexed in the matching table.

[0039] See also Figure 4 , Figure 5 , the running track of the paper tape is relatively stable. The running track includes the circular arc segment at the top and the straight line segments connected to the two end points of the arc segment. The trajectory model in the calculation model should be close to the running track. Therefore, the trajectory model representing the morphology in the calculation model of the paper tape length can include the circular arc segment at the top and the straight line segments connected to the two end points of the circular arc segment, such as Figure 6 As shown in . It can be understood that the top of the paper tape is in a quasi-circular state due to the force, and the proportion of the circle is about half in normal state. When the ranging distance is reduced, the proportion will increase.

[0040] When calculating models for different distance measurement, the basic structure of the running trajectory and the trajectory model remains unchanged, both of which are circular arc segments (circular arc segments) at the top and straight line-like curve segments (straight line segments) on both sides. The first measurement parameter and the second measurement parameter are mainly measured. In this application, the measurement of the first measurement parameter and the second measurement parameter specifically includes: Calculate the mean radius and circumferential proportion of the arc segment, and output them as the first measurement parameter of the arc segment; wherein the mean radius is the radius of the arc segment, and the circumferential proportion is the circumference proportion of the arc segment, and the length of the arc segment can be calculated based on the first measurement parameter; Obtain the distance measured, and draw the straight line segments from the two end points of the arc segment to the two sides of the suction port of the buffer at the height of the arc segment; The height and inclination of the straight line segments on both sides are calculated respectively, and output as the second measurement parameters of the straight line segments; the second measurement parameters include the height and inclination of the two straight line segments; the height is the vertical height from the endpoint of the arc segment to the suction port, and the inclination is the inclination angle of the straight line segment; The calculation model includes a trajectory model composed of a standard trajectory, a first measurement parameter and a second measurement parameter. When these parameters are obtained, the buffer length of the paper tape can be calculated in conjunction with the trajectory model.

[0041] In the embodiment of the present application, the height of the straight line segment can be calculated according to the distance between the suction port and the range finder and the range distance, specifically including: Obtaining a fixed distance between the rangefinder and the suction port; Calculate the size height of the arc segment according to the mean radius and the circumferential proportion, and the size height is the distance between the highest point of the arc segment and the two end points; The ranging distance is obtained, and the height of the straight line segment is calculated according to the fixed distance, the ranging distance, and the dimension height.

[0042] For example, see Figure 4 , Figure 5 , Figure 6 , the ranging distance is H, the mean radius is R, the inclination angle is α, the fixed distance is a fixed parameter, and the size height of the arc segment can be calculated based on the mean radius and the circumferential proportion; the fixed distance minus the ranging distance and the size height is the height of the straight line segment. Based on the known inclination angle α, the length L of the straight line segment can be obtained by trigonometric functions.

[0043] The arc segment can be assumed to be in the middle by default, and the inclination angle α is a fixed value. Of course, the arc segment may also shift left and right at this height. A better rangefinder can be replaced to determine the position of the highest point of the paper tape for more accurate calculations; the position of the highest point can also be obtained in conjunction with a visual instrument to obtain a more accurate inclination angle.

[0044] In one possible implementation, step S102 specifically includes: Obtaining the ranging distance; Based on the matching table, extracting a calculation model corresponding to the ranging distance; The buffer length is calculated based on the first measured parameter and the second measured parameter in the calculation model.

[0045] In an embodiment of the present application, after obtaining the first measurement parameter and the second measurement parameter, the lengths of the circle-like arc segment and the straight-line-like curve segment can be calculated respectively according to the corresponding relationship of the trajectory model in the calculation model, and then the buffer length can be calculated; that is, the first measurement parameter and the second measurement parameter are combined with the trajectory model to calculate the buffer length.

[0046] S103: When the buffer length exceeds the preset buffer interval, adjust the output speed and / or input speed of the paper tape.

[0047] In the embodiments of the present application, the height of the buffer is limited, and the buffering effect on the paper tape is effective. A more effective control method should be to control from the source or from the consumption section, that is, starting from the output device and the input device, to control the output speed and input speed of the paper tape.

[0048] In one possible implementation, step S103 specifically includes: Presetting the buffer zone, wherein the buffer zone includes an upper limit value and a lower limit value; Obtain the buffer length, and determine whether the buffer length is within the buffer area: When the buffer length is within the buffer space, no response is given; When the buffer length exceeds the upper limit, reducing the output speed and / or increasing the input speed; When the buffer length exceeds the lower limit, the output speed is increased and / or the input speed is decreased.

[0049] In the present application, a relatively reasonable buffer range can be preset according to the height of the buffer, including an upper limit and a lower limit, to ensure that the buffer has a maximized buffering effect, and can have an effective buffering effect regardless of whether the output device of the paper tape is oversupplied or the input device is consumed too quickly.

[0050] For the buffer zone, if the buffer length exceeds the upper limit, it means that the supply speed is too fast and the paper tape is accumulated too much. The supply amount should be reduced and the consumption should be increased, that is, the output speed should be reduced and / or the input speed should be increased; if the buffer length exceeds the lower limit, it means that the supply speed is slow and the paper tape is insufficient. The supply amount should be increased and the consumption should be reduced, that is, the output speed should be increased and / or the input speed should be reduced.

[0051] The following will be combined with the attached Figure 2 , the buffer control device of tipping paper provided in the embodiment of the present application is introduced in detail. It should be noted that the attached Figure 2 The buffer control device of the tipping paper shown is used to implement the present application Figure 1 For the convenience of explanation, only the part related to the embodiment of the present application is shown. For the specific technical details not disclosed, please refer to the present application. Figure 1 The embodiment shown.

[0052] See also Figure 2 , Figure 2 Schematic diagram of the structure of a buffer control device for tipping paper provided in an embodiment of the present application. Figure 2 As shown, the device comprises: Paper tape ranging module: obtain the ranging distance of the paper tape in real time. The ranging distance is the distance from the highest point of the paper tape sucked into the buffer to the rangefinder; Length calculation module: calculates the buffer length of the paper tape according to the ranging distance. The buffer length is the total length of the paper tape sucked into the buffer. Speed ​​control module: when the buffer length exceeds the preset buffer interval, adjust the output speed and / or input speed of the paper tape.

[0053] Those skilled in the art can clearly understand that the technical solutions of the embodiments of the present application can be implemented with the help of software and / or hardware. The "unit" and "module" in this specification refer to software and / or hardware that can independently complete or cooperate with other components to complete specific functions, where the hardware can be, for example, a field programmable gate array (FPGA), an integrated circuit (IC), etc.

[0054] Each processing unit and / or module of the embodiments of the present application may be realized by an analog circuit that implements the functions described in the embodiments of the present application, or may be realized by software that executes the functions described in the embodiments of the present application.

[0055] See also Figure 3 , which shows a schematic diagram of the structure of an electronic device involved in an embodiment of the present application, the electronic device can be used to implement Figure 1 The method in the embodiment shown. Figure 3 As shown, the electronic device 300 may include: at least one central processor 301 , at least one network interface 304 , a user interface 303 , a memory 305 , and at least one communication bus 302 .

[0056] The communication bus 302 is used to realize the connection and communication between these components.

[0057] The user interface 303 may include a display screen (Display) and a camera (Camera). Optionally, the user interface 303 may also include a standard wired interface and a wireless interface.

[0058] The network interface 304 may optionally include a standard wired interface or a wireless interface (such as a WI-FI interface).

[0059] Among them, the central processing unit 301 may include one or more processing cores. The central processing unit 301 uses various interfaces and lines to connect various parts of the entire electronic device 300, and executes various functions and processes data of the terminal 300 by running or executing instructions, programs, code sets or instruction sets stored in the memory 305, and calling data stored in the memory 305. Optionally, the central processing unit 301 can be implemented in at least one hardware form of digital signal processing (Digital Signal Processing, DSP), field programmable gate array (Field-Programmable Gate Array, FPGA), and programmable logic array (Programmable Logic Array, PLA). The central processing unit 301 can integrate one or a combination of a central processing unit (Central Processing Unit, CPU), a graphics processing unit (Graphics Processing Unit, GPU) and a modem. Among them, the CPU mainly processes the operating system, user interface and application programs; the GPU is responsible for rendering and drawing the content to be displayed on the display screen; the modem is used to process wireless communications. It can be understood that the above-mentioned modem may not be integrated into the central processing unit 301, and it can be implemented separately through a chip.

[0060] Among them, the memory 305 may include a random access memory (Random Access Memory, RAM) and may also include a read-only memory (Read-Only Memory). Optionally, the memory 305 includes a non-transitory computer-readable storage medium. The memory 305 can be used to store instructions, programs, codes, code sets or instruction sets. The memory 305 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playback function, an image playback function, etc.), instructions for implementing the above-mentioned various method embodiments, etc.; the data storage area may store data involved in the above-mentioned various method embodiments, etc. The memory 305 may optionally be at least one storage device located away from the aforementioned central processor 301. As Figure 3 As shown, the memory 305 as a computer storage medium may include an operating system, a network communication module, a user interface module, and program instructions.

[0061] exist Figure 3 In the electronic device 300 shown, the user interface 303 is mainly used to provide an input interface for the user and obtain the data input by the user; and the central processor 301 can be used to call the buffer control application of the tipping paper stored in the memory 305, and specifically perform the following operations: Acquire the ranging distance of the paper tape in real time, wherein the ranging distance is the distance from the highest point of the paper tape sucked into the buffer to the rangefinder; Calculating the buffer length of the paper tape according to the ranging distance, the buffer length being the total length of the paper tape sucked into the buffer; When the buffer length exceeds a preset buffer interval, the output speed and / or input speed of the paper tape is adjusted.

[0062] The present application also provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the steps of the above method are implemented. The computer-readable storage medium may include, but is not limited to, any type of disk, including a floppy disk, an optical disk, a DVD, a CD-ROM, a micro drive, and a magneto-optical disk, a ROM, a RAM, an EPROM, an EEPROM, a DRAM, a VRAM, a flash memory device, a magnetic card or an optical card, a nanosystem (including a molecular memory IC), or any type of medium or device suitable for storing instructions and / or data.

[0063] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0064] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0065] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some service interfaces, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0066] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0067] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0068] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a memory, including a number of instructions to enable a computer device (which can be a personal computer, server or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned memory includes: U disk, read-only memory (ROM), random access memory (RAM), mobile hard disk, disk or optical disk and other media that can store program codes.

[0069] A person skilled in the art may understand that all or part of the steps in the various methods of the above embodiments may be completed by entering a program to instruct related hardware, and the program may be stored in a computer-readable memory, which may include a flash drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0070] The above is only an exemplary embodiment of the present disclosure, and the scope of the present disclosure cannot be limited thereto. That is, any equivalent changes and modifications made according to the teachings of the present disclosure are still within the scope of the present disclosure. After considering the specification and practicing the disclosure here, those skilled in the art will easily think of the implementation scheme of the present disclosure. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary technical means in the technical field not recorded in the present disclosure. The description and examples are regarded as exemplary only, and the scope and spirit of the present disclosure are defined by the claims.

Claims

1. A buffer control method for tipping paper, characterized in that: The method comprises: Acquire the ranging distance of the paper tape in real time, wherein the ranging distance is the distance from the highest point of the paper tape sucked into the buffer to the rangefinder; Calculating the buffer length of the paper tape according to the ranging distance, the buffer length being the total length of the paper tape sucked into the buffer; When the buffer length exceeds a preset buffer interval, the output speed and / or input speed of the paper tape is adjusted.

2. The method according to claim 1, characterized in that: The real-time acquisition of the ranging distance of the paper tape specifically includes: Preset ranging frequency; Detection data of the rangefinder is continuously acquired at the ranging frequency, and output as the ranging distance.

3. The method according to claim 1, characterized in that: Before calculating the buffer length of the paper tape according to the ranging distance, the method further includes: A calculation model for measuring the running track of the paper tape in the buffer at different ranging distances; the calculation model includes a track model of the paper tape, a first measurement parameter and a second measurement parameter, and the first measurement parameter and the second measurement parameter are used to calculate the buffer length in conjunction with the track model; Associating and binding the calculation model with the corresponding ranging distance and outputting them as a matching form; When the ranging distance is obtained, the corresponding calculation model is indexed in the matching table.

4. The method according to claim 3, characterized in that The running track includes a circular arc segment at the top and straight-line curve segments connected to the end points on both sides of the arc segment; The trajectory model includes an arc segment at the top and straight line segments connected to both sides of the endpoints of the arc segment; The determination of the first measurement parameter and the second measurement parameter comprises: Calculating the mean radius and circumferential proportion of the arc segment, and outputting them as the first measurement parameter of the arc segment; Obtain the distance measured, and draw the straight line segments from the two end points of the arc segment to the two sides of the suction port of the buffer at the height of the arc segment; Respectively calculating the height and inclination of the straight line segments on both sides, and outputting them as second measurement parameters of the straight line segments; the second measurement parameters include the height and inclination of the two straight line segments; The height is the vertical height from the end point of the arc segment to the suction port, and the inclination angle is the inclination angle of the straight line segment.

5. The method according to claim 4, characterized in that Calculating the height of the straight line segment specifically includes: Obtaining a fixed distance between the rangefinder and the suction port; Calculate the size height of the arc segment according to the mean radius and the circumferential proportion, and the size height is the distance between the highest point of the arc segment and the two end points; The ranging distance is obtained, and the height of the straight line segment is calculated according to the fixed distance, the ranging distance, and the dimension height.

6. The method according to claim 4, characterized in that The step of calculating the buffer length of the paper tape according to the ranging distance specifically includes: Obtaining the ranging distance; Based on the matching table, extracting a calculation model corresponding to the ranging distance; The buffer length is calculated based on the first measured parameter and the second measured parameter in the calculation model.

7. The method according to claim 1, characterized in that When the buffer length exceeds the preset buffer interval, adjusting the output speed and / or input speed of the paper tape specifically includes: Presetting the buffer zone, wherein the buffer zone includes an upper limit value and a lower limit value; Obtain the buffer length, and determine whether the buffer length is within the buffer area: When the buffer length is within the buffer space, no response is given; When the buffer length exceeds the upper limit, reducing the output speed and / or increasing the input speed; When the buffer length exceeds the lower limit, the output speed is increased and / or the input speed is decreased.

8. A buffer control device for tipping paper, characterized in that: include: Paper tape ranging module: obtain the ranging distance of the paper tape in real time. The ranging distance is the distance from the highest point of the paper tape sucked into the buffer to the rangefinder; Length calculation module: calculates the buffer length of the paper tape according to the ranging distance. The buffer length is the total length of the paper tape sucked into the buffer. Speed ​​control module: when the buffer length exceeds the preset buffer interval, adjust the output speed and / or input speed of the paper tape.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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