Five-cursor positioning cigarette frame paper cutting device

Abstract

The utility model provides a five-cursor positioning cigarette frame paper cutting device. The cutting device comprises an automatic feeding and discharging device (4), a front cursor sensor (8), a back cursor sensor (9), a cigarette frame paper upper conveying wheel (5), a cigarette frame paper lower conveying wheel (6), a cigarette frame paper conveying rail (7), a cigarette frame paper cutter A (11), a cigarette frame paper cutter B (12), a servo motor (10) and a negative pressure air suction extraction arm (13). In the cutting device provided by the utility model, the electric control system accurately recognizes and positions five cursors on the cigarette frame paper through the front cursor sensor (8) and the back cursor sensor (9), calculates the phase difference and the compensation amount, and combines the accurate control of the electric control system and the servo motor (10) to cut the cigarette frame paper. Accurate positioning of the cigarette frame paper in the conveying process is achieved, and the cutting precision of the cigarette frame paper is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of cigarette packaging technology, specifically relates to a five light positioning cigarette frame paper cutting device. BACKGROUND

[0002] With the rapid development of technology, especially the continuous progress of digitalization and intelligentization technology, all walks of life are experiencing unprecedented changes and innovations. In the tobacco industry, this trend is also significant, especially in the packaging field of cigarette products. As a highly commercialized product, the packaging of cigarettes not only carries the basic function of protecting the product, but also becomes an important carrier of brand display, information transmission and consumer experience.

[0003] Traditional cigarette packaging, especially small box packaging, is often limited to simple text information and pattern design, and it is difficult to meet the needs of modern marketing for personalization, interactivity and information volume. In recent years, with the continuous improvement of consumers' requirements for product quality, cultural connotation and purchase experience, cigarette packaging has gradually developed in a more colorful and intelligent direction. Among them, cigarette frame paper with diversified product information such as color pictures, advertising slogans, brand logos and two-dimensional codes emerges as the times require, adding new vitality to cigarette packaging.

[0004] However, these complex and delicate design elements put higher requirements on the production process of cigarette packaging. Traditional positioning and cutting technology cannot achieve high precision and high quality packaging effect while ensuring production efficiency. Especially in modern cigarette packaging equipment, with the rapid improvement of production efficiency, the production efficiency of many domestic cigarette factories has reached 700 packs per minute or even higher, and the existing cigarette packaging equipment has appeared bottleneck in positioning accuracy and cutting efficiency. The demand for high-precision positioning and high-efficiency cutting is becoming increasingly urgent. Therefore, how to achieve accurate positioning and precise cutting of cigarette frame paper and other packaging materials to meet the dual needs of high precision and high efficiency of cigarette packaging has become a major technical problem faced by technical personnel in this field.

[0005] Cigarette frame paper moves continuously in one dimension, and cutting knife is intermittent cutting, only accurate determination of the running speed of frame paper can adjust the cutting knife falling time to ensure that the cutting knife falls accurately to the predetermined position, such as falling to the predetermined dotted line position or the predetermined outer contour module line, if the falling time is not correct, it will cut early or late, all will cut inaccurate. Therefore, how to accurately measure the one-dimensional running speed of frame paper in order to accurately determine the falling time of cutting knife based on this speed is crucial for achieving accurate positioning and precise cutting of cigarette frame paper and other packaging materials.

[0006] In order to solve the above problems, the utility model is proposed. CONTENT OF THE UTILITY MODEL

[0007] To solve the above technical problems, the utility model provides a kind of five light mark positioning cigarette frame paper cutting device, comprising the following components:

[0008] Automatic feeding and discharging device 4, the automatic feeding and discharging device 4 is located the most upstream of entire cutting device;

[0009] Front light mark sensor 8 and back light mark sensor 9 located downstream of the automatic feeding and discharging device 4, the front light mark sensor 8 and back light mark sensor 9 are oppositely arranged above and below the cigarette frame paper;

[0010] Cigarette frame paper upper transmission wheel 5 and cigarette frame paper lower transmission wheel 6 located downstream of the front light mark sensor 8 and back light mark sensor 9, the cigarette frame paper upper transmission wheel 5 and cigarette frame paper lower transmission wheel 6 are oppositely arranged above and below the cigarette frame paper;

[0011] Cigarette frame paper transmission rail 7 located downstream of the cigarette frame paper upper transmission wheel 5 and cigarette frame paper lower transmission wheel 6;

[0012] Cigarette frame paper A cutter 11 and cigarette frame paper B cutter 12 are sequentially arranged above the cigarette frame paper transmission rail 7;

[0013] Negative pressure air suction extraction arm 13 located downstream of the cigarette frame paper B cutter 12.

[0014] Preferably, the cigarette frame paper upper transmission wheel 5 and cigarette frame paper lower transmission wheel 6 are also connected with servo motor 10.

[0015] Preferably, the negative pressure air suction extraction arm 13 includes negative pressure air suction extractor 17, connecting rod 16 and rotary extraction arm 15, the connecting rod 16 is located at the top of the negative pressure air suction extraction arm 13, is fixedly connected with the negative pressure air suction extractor 17, and is hinged with the rotary extraction arm 15.

[0016] Preferably, the bottom of the negative pressure air suction extractor 17 is provided with negative pressure air suction port 18, the negative pressure air suction port 18 is circular in shape, and the number of the negative pressure air suction extractor 17 is 2, symmetrically arranged on both sides of the negative pressure air suction extraction arm 13.The negative pressure air suction port 18 is used to suck the cut single cigarette frame paper, and transport it to the cigarette frame paper forming mold box through the rotary extraction arm 15, to complete the folding forming and gluing process of the cigarette frame paper in the cigarette frame paper forming mold box.

[0017] Preferably, the front light mark sensor 8 and back light mark sensor 9 are also connected with electric control system.

[0018] Preferably, the cigarette frame paper A cutter 11 and the cigarette frame paper B cutter 12 are both composed of an upper part and a lower part, the lower part is a static panel, and the upper part is a movable cutter.

[0019] Preferably, the cigarette frame paper A cutter 11 and the cigarette frame paper B cutter 12 are further connected with a control system.

[0020] The utility model discloses a kind of cutting methods of five cursors positioning cigarette frame paper, use the above-mentioned cutting device of five cursors positioning cigarette frame paper, the front of the cigarette frame paper is printed with front dashed line, front lock 2, front contour die cutting line, product information, gum area and first cursor 1, the number of the first cursor 1 is 1, and the product information includes color pattern, two-dimensional code, advertising phrase;The back of the cigarette frame paper is printed with back dashed line, back lock 14, back contour die cutting line and second cursor 3, and the number of the second cursor 3 is 4, and the front dashed line and back dashed line, front lock 2 and back lock 14, front contour die cutting line and back contour die cutting line are symmetrically arranged about the cigarette frame paper, and the method includes the following steps:

[0021] Step (1): place the cigarette frame paper on the automatic feeding and discharging device 4, and ensure that it is fixed firmly, check the quality of the cigarette frame paper, ensure that its surface is flat, has no damage, and the five cursors are clearly visible;Start automatic feeding and discharging device 4, and transmit the cigarette frame paper.

[0022] Step (2): when the cigarette frame paper is transmitted to the front cursor sensor 8 and the back cursor sensor 9 position, the front cursor sensor 8 accurately identifies the first cursor 1 printed on the front of the cigarette frame paper, and detects its position information, and the back cursor sensor 9 accurately identifies the four second cursors 3 printed on the back of the cigarette frame paper, and detects its position information.

[0023] Step (3):

[0024] S401 image acquisition: the cigarette frame paper moves along a straight line in one-dimensional space, and the electric control system acquires the real-time image of the five cursors of the cigarette frame paper through the front cursor sensor 8 and the back cursor sensor 9, including the initial position image of the five cursors, and the real-time dynamic position image of the five cursors in the transmission process of the cigarette frame paper.

[0025] S402 image preprocessing: the collected image is preprocessed, and the preprocessing includes denoising, gray scale conversion, binarization and the like, and the cursor and the background in the image are separated through the binarization operation, to facilitate further processing.

[0026] S403 Feature extraction: extract useful feature information from the pre-processed image, identify the 5 cursors in the image, determine the position information of the 5 cursors of the cigarette frame paper in the current collected image, and compare the position information with the standard position of the cigarette frame paper preset by the system, and calculate the phase difference ΔΦ.

[0027] S404 Real-time feedback and control: the electric control system will calculate the compensation amount Δv according to the phase difference ΔΦ, and feedback and instruct the servo motor 10 to change the preset transmission speed of the cigarette frame paper to compensate for the speed, adjust the position of the cigarette frame paper, and ensure that the cigarette frame paper is aligned with the standard position of the cigarette frame paper preset by the system.

[0028] Step (4): When the cigarette frame paper is positioned accurately, the control system starts, and the cigarette frame paper A cutter 11 and the cigarette frame paper B cutter 12 start running work respectively; the cigarette frame paper A cutter 11 and the cigarette frame paper B cutter 12 adopt a planar cutter, the cigarette frame paper A cutter 11 cuts the front and back dotted lines and the front and back lockers 2 and 14 of the cigarette frame paper, and the cigarette frame paper B cutter 12 cuts the front and back outer contour die cutting lines of the cigarette frame paper; the moving knife of the cigarette frame paper A cutter 11 and the cigarette frame paper B cutter 12 moves up and down, and each up and down reciprocating motion completes the cutting of a cigarette frame paper; when the moving knife stops cutting action, the moving knife is separated from the cigarette frame paper, and at this time the position of the cigarette frame paper is adjusted.

[0029] Step (5): After the cigarette frame paper is cut, the negative pressure air suction port 18 sucks the cut single cigarette frame paper and transports it to the cigarette frame paper forming mold box through the rotating extraction arm 15, and completes the folding forming and gluing process of the cigarette frame paper in the cigarette frame paper forming mold box.

[0030] Preferably, the calculation method of the phase difference ΔΦ in step (3) is as follows:

[0031] The standard position of the cigarette frame paper preset by the system is defined as A, and the positions of the 5 cursors of the cigarette frame paper detected by the front cursor sensor 8 and the back cursor sensor 9 are B. In one-dimensional space, that is, the transmission direction of the cigarette frame paper:

[0032] The starting position of the cigarette frame paper transmission wheel 5 is defined as C, the distance between position A and position C is x1, the distance between position B and position C is x2, and the difference between position B and position A is represented by phase difference ΔΦ:

[0033] ΔΦ=x2-x1.

[0034] Preferably, the calculation method of the compensation amount Δv in step (3) is as follows:

[0035] The preset cigarette frame paper transmission speed of the system is defined as v0, and the adjusted cigarette frame paper transmission speed is v1.

[0036] The calculation formula of the compensation amount is:

[0037] Δv = v1-v0 = k·ΔΦ

[0038] k = |x1 / v o (x2-x1)-x2 / v o (x2-x1)|

[0039] Wherein, Δv is the compensation amount, indicating the speed difference that needs to be adjusted, usually expressed in speed units of millimeters per second, k is the compensation gain, which is a proportional coefficient, used to adjust the sensitivity of the compensation amount, and ΔΦ is the phase difference, indicating the difference between the position of the cursor and the standard position of the cigarette frame paper preset by the system.

[0040] The compensation amount Δv is determined according to the value of the phase difference ΔΦ, and the size of the compensation amount Δv is proportional to ΔΦ, if the phase difference ΔΦ>0, indicating that the actual transmission position of the cigarette frame paper is ahead of the standard position, at this time Δv takes negative value, need to reduce the transmission speed; if the phase difference ΔΦ<0, indicating that the actual transmission position of the cigarette frame paper lags behind the standard position, at this time Δv takes positive value, need to increase the transmission speed.

[0041] The working principle of the five-cursor positioning cigarette frame paper cutting device provided by the utility model is as follows:

[0042] I. Initial preparation and material transmission

[0043] 1. Cigarette frame paper placement: place the cigarette frame paper on the automatic feeding and discharging device 4, and ensure that it is fixed firmly, check the quality of the cigarette frame paper, ensure that its surface is flat, has no damage, and the five cursors are clearly visible.

[0044] 2. Start the device: turn on the power switch of the cutting device, start the automatic feeding and discharging device 4, and transmit the cigarette frame paper.

[0045] II. Cursor identification and position detection

[0046] 1. Cursor identification: when the cigarette frame paper is transmitted to the front cursor sensor 8 and the back cursor sensor 9 position, the front cursor sensor 8 accurately identifies one cursor printed on the front of the cigarette frame paper and detects its position information; the back cursor sensor 9 accurately identifies four cursors printed on the back of the cigarette frame paper and detects their position information.

[0047] 2. Image acquisition and processing: The electric control system acquires real-time images of the five cursors of the cigarette frame paper 5 through the front cursor sensor 8 and the back cursor sensor 9, including initial position images and real-time dynamic position images during transmission, and performs preprocessing, including denoising, grayscale conversion, binarization, etc., to extract useful feature information, identify the five cursors in the image, and determine the position information of the five cursors currently acquired.

[0048] 3. Position comparison and phase difference calculation: Compare the position information of the five cursors extracted with the standard position of the cigarette frame paper preset by the system, and calculate the phase difference ΔΦ. The phase difference ΔΦ represents the difference between the position of the cursor and the preset position of the system, and the calculation formula is ΔΦ = x2 - x1, where x1 is the distance between the preset standard position and the starting position of the transmission wheel 5 on the cigarette frame paper, and x2 is the distance between the detected cursor position and the starting position of the transmission wheel 5 on the cigarette frame paper.

[0049] Three, speed compensation and accurate positioning

[0050] Real-time feedback and control: The electric control system will calculate the compensation amount Δv according to the phase difference ΔΦ, real-time feedback and instruct the servo motor 10 to change the system preset cigarette frame paper transmission speed for speed compensation, adjust the position of the cigarette frame paper, to ensure that the cigarette frame paper is aligned with the standard position of the cigarette frame paper preset by the system.

[0051] 1. Speed compensation: The calculation formula of the compensation amount is Δv = v1 - v0 = k · ΔΦ, k = |x1 / v o (x2-x1)-x2 / v o (x2-x1)|, where v0 is the system preset cigarette frame paper transmission speed, v1 is the adjusted cigarette frame paper transmission speed, and k is the compensation gain. According to the value of the phase difference ΔΦ, determine the compensation amount Δv, if the phase difference ΔΦ>0, indicating that the actual transmission position of the cigarette frame paper is ahead of the standard position, at this time, the transmission speed needs to be reduced (Δv takes negative value); if the phase difference ΔΦ<0, indicating that the actual transmission position of the cigarette frame paper lags behind the standard position, at this time, the transmission speed needs to be increased (Δv takes positive value).

[0052] Four, cutting and extraction

[0053] Cutting operation: when the cigarette frame paper is positioned accurately, the cigarette frame paper A cutter 11 and the cigarette frame paper B cutter 12 start to run work respectively; the cigarette frame paper A cutter 11 and the cigarette frame paper B cutter 12 adopt a planar cutter, the cigarette frame paper A cutter 11 cuts the front side dotted line, the back side dotted line and the front side lock 2, the back side lock 14 of the cigarette frame paper, and the cigarette frame paper B cutter 12 cuts the front side outer contour die cutting line and the back side outer contour die cutting line of the cigarette frame paper; the movable cutter of the cigarette frame paper A cutter 11 and the cigarette frame paper B cutter 12 moves up and down, and the cutting of one cigarette frame paper is completed by each up and down reciprocating motion; when the movable cutter stops the cutting action, the movable cutter is separated from the cigarette frame paper, and at this time, the position of the cigarette frame paper is adjusted.

[0054] Extraction and subsequent processing: during the cutting of the cigarette frame paper, the negative pressure air suction extraction arm 13 keeps a working state and is ready to suck the cut cigarette frame paper at any time. After the cutting of the cigarette frame paper is completed, the negative pressure air suction port 18 sucks the cut single cigarette frame paper and transports it to the cigarette frame paper forming mold box through the rotating extraction arm 15, so that the folding forming and gluing process of the cigarette frame paper are completed in the cigarette frame paper forming mold box.

[0055] The cigarette frame paper cutting device has the advantages that:

[0056] 1. The five-pointer positioning cigarette frame paper cutting device can accurately detect the position information of the five pointers on the front and back surfaces of the cigarette frame paper through the cooperative work of the two sensors, accurately determine the one-dimensional running speed of the whole cigarette frame paper by taking the five machine-vision-recognizable pointers on the front and back surfaces of the cigarette frame paper as reference points and determining the one-dimensional running speed of the reference points, and real-time adjust the preset cigarette frame paper transmission speed of the system by combining the accurate control of the electric control system and the servo motor, so as to compensate for the error caused in the transmission process, ensure the cutting position accuracy, accurately determine the falling cutter timing of the cigarette frame paper A cutter and the cigarette frame paper B cutter, effectively solve the technical problem of inaccurate cutting of the existing cigarette frame paper cutting device, and greatly improve the cutting accuracy.

[0057] 2. The cutting method of the five-pointer positioning cigarette frame paper can ensure the smooth and burr-free cutting edge of the cigarette frame paper, improve the overall quality of the product, significantly reduce the waste rate, improve the raw material utilization rate, and further reduce the production cost. The high-quality cigarette frame paper cutting effect can improve the appearance and delicate feeling of the product, thereby enhancing the brand image and consumer satisfaction.

[0058] 3、The five-cursor positioning cigarette frame paper cutting device provided by the utility model can read the data of the cursor sensor in real time, and can quickly calculate and feedback according to the data, so that the transmission speed of the cigarette frame paper can be accurately controlled, and the intelligent level of the production process is enhanced.

[0059] 4、The five-cursor positioning cigarette frame paper cutting device provided by the utility model adopts the planar cutter design of the cigarette frame paper A cutter and the cigarette frame paper B cutter, so that a large number of cigarette frame papers can be cut in a short time, and the production efficiency is significantly improved. The cutting device can be flexibly adjusted according to different paper types, thicknesses, widths and other parameters, and the high-efficiency cutting of different types of cigarette frame papers can be realized through parameter setting of the control system.

[0060] 5、The five-cursor positioning cigarette frame paper cutting device provided by the utility model introduces the automatic feeding and discharging device, the negative pressure air suction extractor arm and other automatic components, realizes the full-automatic production process of the cigarette frame paper from transmission to cutting to extraction, reduces manual intervention and reduces production cost.

[0061] 6、The five-cursor positioning cigarette frame paper cutting device provided by the utility model provides multiple positioning references through the design of the five cursors, so that even if part of the cursors deviates or fails, other cursors can still ensure the accuracy of the cutting position, and the reliability and fault tolerance of the system are improved. BRIEF DESCRIPTION OF DRAWINGS

[0062] Figure 1 A perspective view of the five-cursor positioning cigarette frame paper cutting device provided by the utility model.

[0063] Figure 2 A front view of the five-cursor positioning cigarette frame paper cutting device provided by the utility model.

[0064] Figure 3 A structure diagram of the five-cursor positioning cigarette frame paper of the utility model.

[0065] Figure 4 A bottom view of the negative pressure air suction extractor in the five-cursor positioning cigarette frame paper cutting device provided by the utility model.

[0066] The meanings of the reference numerals are as follows:

[0067] 1-first cursor; 2-front locking buckle; 3-second cursor; 4-automatic feeding and discharging device; 5-frame paper transmission wheel; 6-frame paper lower transmission wheel; 7-frame paper transmission rail; 8-front cursor sensor; 9-back cursor sensor; 10-servo motor; 11-frame paper A cutter; 12-frame paper B cutter; 13-negative pressure air suction extraction arm; 14-back locking buckle; 15-rotary extraction arm; 16-connecting rod; 17-negative pressure air suction extractor; 18-negative pressure air suction port. DETAILED DESCRIPTION

[0068] The utility model will be described in further detail below in combination with examples.

[0069] Those skilled in the art will understand that the following examples are only for illustrating the utility model and should not be regarded as limiting the scope of the utility model. If the specific technology or condition is not specified in the examples, it is carried out according to the technology or condition described in the literature in the field or according to the product instruction. If the manufacturer of the material or equipment is not specified, it is a conventional product that can be obtained by purchase.

[0070] Those skilled in the art can understand that, unless specifically stated, the singular form "a", "an" and "the" used herein also includes the plural form. It should be further understood that the phrase "comprising" used in the specification of the utility model means that the features, integers, steps, operations, elements and / or components exist, but does not exclude the existence or addition of one or more other features, integers, steps, operations, elements, components and / or their groups. It should be understood that when we say that an element is "connected" to another element, it can be directly connected to the other element or there can be intermediate elements. In addition, "connection" used herein can include wireless connection.

[0071] In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more. The orientation or state relationship indicated by the terms "in", "up", "down" and the like is based on the orientation or state relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0072] In the description of the utility model, it should be pointed out that, unless otherwise specifically stated and limited, the terms "mounting", "connection", "provided with" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium. For those skilled in the art, the specific meaning of the above terms in the utility model should be understood according to the specific circumstances.

[0073] Those skilled in the art will appreciate that unless otherwise defined, all terminology used herein, including technical and scientific terms, has the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0074] Embodiment 1

[0075] As shown in Figure 3 , the front side of the five-pointer positioning cigarette frame paper is printed with a dotted line, a front side lock 2, an outer contour die cutting line, product information, a gumming area, and a first pointer 1, the number of the first pointer 1 is 1, the product information includes a color pattern, a two-dimensional code, and an advertising phrase, the back side is printed with a dotted line, a back side lock 14, an outer contour die cutting line, and a second pointer 3, the number of the second pointer 3 is 4, the dotted line and the outer contour die cutting line are symmetrically arranged, and the front side lock 2 and the back side lock 14 are symmetrically arranged.

[0076] As shown in Figure 1 , 2 and 4, a five-pointer positioning cigarette frame paper cutting device includes the following components:

[0077] An automatic feeding and discharging device 4, which is located at the most upstream of the entire cutting device;

[0078] A front side pointer sensor 8 and a back side pointer sensor 9 located downstream of the automatic feeding and discharging device 4, which are oppositely arranged above and below the cigarette frame paper;

[0079] A cigarette frame paper upper conveying wheel 5 and a cigarette frame paper lower conveying wheel 6 located downstream of the front side pointer sensor 8 and the back side pointer sensor 9, which are oppositely arranged above and below the cigarette frame paper;

[0080] A cigarette frame paper conveying track 7 located downstream of the cigarette frame paper upper conveying wheel 5 and the cigarette frame paper lower conveying wheel 6;

[0081] A cigarette frame paper A cutter 11 and a cigarette frame paper B cutter 12 arranged in sequence from front to back above the cigarette frame paper conveying track 7;

[0082] A negative pressure air suction extraction arm 13 located downstream of the cigarette frame paper B cutter 12.

[0083] The cigarette frame paper upper conveying wheel 5 and the cigarette frame paper lower conveying wheel 6 are further connected with a servo motor 10.

[0084] The negative pressure air suction extraction arm 13 comprises a negative pressure air suction extractor 17, a connecting rod 16 and a rotating extraction arm 15, the connecting rod 16 is located at the top of the negative pressure air suction extraction arm 13, is fixedly connected with the negative pressure air suction extractor 17, and is hinged with the rotating extraction arm 15.

[0085] The bottom of the negative pressure air suction extractor 17 is provided with a negative pressure air suction port 18, the negative pressure air suction port 18 is circular in shape, and the number of the negative pressure air suction extractors 17 is 2, which are symmetrically arranged on the two sides of the negative pressure air suction extraction arm 13. The negative pressure air suction port 18 is used to suck the cut single cigarette frame paper, which is transported to the cigarette frame paper forming mold box by the rotating extraction arm 15, and the folding forming and gluing process of the cigarette frame paper is completed in the cigarette frame paper forming mold box.

[0086] The front light cursor sensor 8 and the back light cursor sensor 9 are further connected with an electric control system.

[0087] The cigarette frame paper A cutter 11 and the cigarette frame paper B cutter 12 are both composed of an upper part and a lower part, the lower part is a static panel, and the upper part is a movable cutter.

[0088] The cigarette frame paper A cutter 11 and the cigarette frame paper B cutter 12 are further connected with a control system.

[0089] A cutting method of five-cursor positioning cigarette frame paper, using the above-mentioned five-cursor positioning cigarette frame paper cutting device, the front surface of the cigarette frame paper is printed with a front surface dotted line, a front surface lock 2, a front surface outer contour die cutting line, product information, a gluing area and a first cursor 1, the number of the first cursor 1 is 1, the product information includes a color pattern, a two-dimensional code and an advertising phrase; the back surface of the cigarette frame paper is printed with a back surface dotted line, a back surface lock 14, a back surface outer contour die cutting line and a second cursor 3, the number of the second cursor 3 is 4, the front surface dotted line and the back surface dotted line, the front surface lock 2 and the back surface lock 14, the front surface outer contour die cutting line and the back surface outer contour die cutting line are symmetrically arranged about the cigarette frame paper, and the method comprises the following steps:

[0090] Step (1): placing the cigarette frame paper on the automatic feeding and discharging device 4 and ensuring that it is fixed firmly, checking the quality of the cigarette frame paper to ensure that its surface is flat, has no damage and the five cursors are clearly visible; starting the automatic feeding and discharging device 4 to transport the cigarette frame paper.

[0091] Step (2): when the cigarette frame paper is transported to the position of the front light cursor sensor 8 and the back light cursor sensor 9, the front light cursor sensor 8 accurately identifies the first cursor 1 printed on the front surface of the cigarette frame paper and detects the position information thereof, and the back light cursor sensor 9 accurately identifies the four second cursors 3 printed on the back surface of the cigarette frame paper and detects the position information thereof.

[0092] Step (3):

[0093] S401 image acquisition: the cigarette frame paper moves along a straight line in one-dimensional space, and the electric control system acquires real-time images of the five cursors of the cigarette frame paper through the front cursor sensor 8 and the back cursor sensor 9, including the initial position image of the five cursors and the real-time dynamic position image of the five cursors during the transmission of the cigarette frame paper.

[0094] S402 image preprocessing: the acquired image is preprocessed, and the preprocessing includes denoising, gray scale conversion, binarization and the like. The cursors and the background in the image are separated through the binarization operation, so as to facilitate further processing.

[0095] S403 feature extraction: useful feature information is extracted from the preprocessed image, and the five cursors in the image are identified to determine the position information of the five cursors of the cigarette frame paper in the currently acquired image, and the position information is compared with the standard position of the cigarette frame paper preset by the system, and the phase difference ΔΦ is calculated.

[0096] S404 real-time feedback and control: the electric control system will calculate the compensation amount Δv according to the phase difference ΔΦ, and feed back and instruct the servo motor 10 to change the transmission speed of the cigarette frame paper preset by the system for speed compensation, so as to adjust the position of the cigarette frame paper, so as to ensure that the cigarette frame paper is aligned with the standard position of the cigarette frame paper preset by the system.

[0097] Step (4): when the cigarette frame paper is positioned accurately, the control system is started, and the cigarette frame paper A cutter 11 and the cigarette frame paper B cutter 12 start to run respectively; the cigarette frame paper A cutter 11 and the cigarette frame paper B cutter 12 adopt a planar cutter, the cigarette frame paper A cutter 11 cuts the front and back dotted lines and the front and back lock buckles 2 and 14 of the cigarette frame paper, and the cigarette frame paper B cutter 12 cuts the front and back outer contour die cutting lines of the cigarette frame paper; the movable knife of the cigarette frame paper A cutter 11 and the cigarette frame paper B cutter 12 moves up and down, and each up and down reciprocating motion completes the cutting of a cigarette frame paper; when the movable knife stops cutting action, the movable knife is separated from the cigarette frame paper, and at this time, the position of the cigarette frame paper is adjusted.

[0098] Step (5): after the cigarette frame paper is cut, the negative pressure air suction port 18 sucks the cut single cigarette frame paper, and transports it to the cigarette frame paper forming mold box through the rotating extraction arm 15, and completes the folding forming and gluing process of the cigarette frame paper in the cigarette frame paper forming mold box.

[0099] The calculation method of the phase difference ΔΦ in step (3) is as follows:

[0100] The standard position of the cigarette frame paper preset by the system is defined as A, the positions of the five cursors of the cigarette frame paper detected by the front cursor sensor 8 and the back cursor sensor 9 are defined as B, and the positions of A and B in the one-dimensional space, i.e. the transmission direction of the cigarette frame paper, are as follows:

[0101] The starting position of the cigarette frame paper upper transmission wheel 5 is defined as C, the distance between the position A and the position C is x1, the distance between the position B and the position C is x2, and the difference between the position B and the position A is represented by the phase difference ΔΦ:

[0102] ΔΦ = x2 - x1.

[0103] The calculation method of the compensation amount Δv in step (3) is as follows:

[0104] The transmission speed of the cigarette frame paper preset by the system is defined as v0, and the adjusted transmission speed of the cigarette frame paper is defined as v1.

[0105] The calculation formula of the compensation amount is as follows:

[0106] Δv = v1 - v0 = k · ΔΦ

[0107] k = |x1 / v o (x2 - x1) - x2 / v o (x2 - x1)|

[0108] Wherein, Δv is the compensation amount, representing the speed difference that needs to be adjusted, usually expressed in units of speed, i.e. millimeters per second, k is the compensation gain, which is a proportional coefficient, used to adjust the sensitivity of the compensation amount, and ΔΦ is the phase difference, representing the difference between the position of the cursor and the standard position of the cigarette frame paper preset by the system.

[0109] The compensation amount Δv is determined according to the value of the phase difference ΔΦ, and the size of the compensation amount Δv is proportional to ΔΦ. If the phase difference ΔΦ > 0, it means that the actual transmission position of the cigarette frame paper is ahead of the standard position, and at this time, Δv takes a negative value, and the transmission speed needs to be reduced. If the phase difference ΔΦ < 0, it means that the actual transmission position of the cigarette frame paper lags behind the standard position, and at this time, Δv takes a positive value, and the transmission speed needs to be increased.

[0110] Example 2

[0111] This embodiment adopts the cutting device and the cutting method described in Example 1, wherein the distance x1 between the standard position A of the cigarette frame paper preset by the system and the starting position C of the cigarette frame paper upper transmission wheel 5 is 100 mm, the distance x2 between the five cursor positions B of the cigarette frame paper detected by the front cursor sensor 8 and the back cursor sensor 9 and the starting position C of the cigarette frame paper upper transmission wheel 5 is 102 mm, and the transmission speed v0 of the cigarette frame paper preset by the system is 10 mm / s.

[0112] Calculate the phase difference:

[0113] ΔΦ = 102 - 100 = 2 mm.

[0114] Calculate the compensation gain k = |x1 / v o (x2 - x1) - x2 / v o (x2 - x1) | = 0.1

[0115] Calculate the compensation amount:

[0116] Δv = k · ΔΦ = 0.1 · 2 = 0.2 mm / s.

[0117] Since ΔΦ > 0, it means that the actual transmission position of the cigarette frame paper is ahead of the standard position, so Δv should be negative:

[0118] Δv = -0.2 mm / s.

[0119] The adjusted cigarette frame paper transmission speed v1 = v 0+ Δv = 10 - 0.2 = 9.8 mm / s.

[0120] Since the actual transmission position of the cigarette frame paper is ahead of the standard position by 2 mm, the system reduces the transmission speed from 10 mm / s to 9.8 mm / s to align the actual transmission position of the cigarette frame paper with the standard position, ensuring accurate cutting of the cigarette frame paper.

[0121] Example 3

[0122] This example uses the cutting device and cutting method described in Example 1, where the system presets the distance x1 = 100 mm between the standard position A of the cigarette frame paper and the starting position C of the cigarette frame paper transmission wheel 5, the front cursor sensor 8 and the back cursor sensor 9 detect the distance x2 = 96 mm between the 5 cursor positions B of the cigarette frame paper and the starting position C of the cigarette frame paper transmission wheel 5, and the system presets the cigarette frame paper transmission speed v0 = 10 mm / s.

[0123] Calculate the phase difference:

[0124] ΔΦ = 96 - 100 = -4 mm.

[0125] Calculate the compensation gain k = |x1 / v o (x2 - x1) - x2 / v o (x2 - x1) | = 0.1

[0126] Calculate the compensation amount:

[0127] Δv = k · ΔΦ = 0.1 · (-4) = -0.4 mm / s.

[0128] Since ΔΦ < 0, indicating that the actual transmission position of the cigarette frame paper lags behind the standard position, Δv should take a positive value:

[0129] Δv = 0.4 mm / s.

[0130] The adjusted cigarette frame paper transmission speed v1 = v 0+ Δv = 10 + 0.4 = 10.4 mm / s.

[0131] Since the actual transmission position of the cigarette frame paper lags behind the standard position by 4 mm, the system increases the transmission speed from 10 mm / s to 10.4 mm / s to align the actual transmission position of the cigarette frame paper with the standard position, ensuring the accurate cutting of the cigarette frame paper.

[0132] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A five-pointed star positioning cigarette frame paper cutting device, characterized in that, Includes the following components: Automatic loading and unloading device (4), which is located at the uppermost part of the entire cutting device; The front cursor sensor (8) and the back cursor sensor (9) are located downstream of the automatic loading and unloading device (4). The front cursor sensor (8) and the back cursor sensor (9) are positioned opposite each other above and below the cigarette frame paper. The upper conveyor wheel (5) and the lower conveyor wheel (6) of the cigarette frame paper are located downstream of the front cursor sensor (8) and the back cursor sensor (9). The upper conveyor wheel (5) and the lower conveyor wheel (6) of the cigarette frame paper are arranged opposite each other above and below the cigarette frame paper. Cigarette frame paper transport rail (7) located downstream of the upper transport wheel (5) and the lower transport wheel (6) of the cigarette frame paper; Located above the cigarette frame paper transport rail (7), the cigarette frame paper A cutter (11) and the cigarette frame paper B cutter (12) are arranged sequentially from front to back; The negative pressure suction extraction arm (13) is located downstream of the cigarette frame paper B cutter (12).

2. The five-pointed star positioning cigarette frame paper cutting device according to claim 1, characterized in that, The upper and lower transmission wheels (5 and 6) of the cigarette frame paper are also connected to servo motors (10).

3. The five-pointed star positioning cigarette frame paper cutting device according to claim 2, characterized in that, The negative pressure suction extraction arm (13) includes a negative pressure suction extractor (17), a connecting rod (16) and a rotating extraction arm (15). The connecting rod (16) is located at the top of the negative pressure suction extraction arm (13), is fixedly connected to the negative pressure suction extractor (17), and is hinged to the rotating extraction arm (15).

4. The five-pointed star positioning cigarette frame paper cutting device according to claim 3, characterized in that, The bottom of the negative pressure air suction extractor (17) is provided with a negative pressure air suction port (18), which is circular in shape. There are two negative pressure air suction extractors (17), which are symmetrically arranged on both sides of the negative pressure air suction extraction arm (13).

5. The five-pointed star positioning cigarette frame paper cutting device according to claim 4, characterized in that, The front cursor sensor (8) and the back cursor sensor (9) are also connected to an electronic control system.

6. The five-pointed star positioning cigarette frame paper cutting device according to claim 5, characterized in that, The cigarette frame paper A cutter (11) and cigarette frame paper B cutter (12) are both composed of upper and lower parts, with the lower part being a stationary panel and the upper part being a movable blade.

7. The five-pointed star positioning cigarette frame paper cutting device according to claim 6, characterized in that, The cigarette frame paper A cutter (11) and cigarette frame paper B cutter (12) are also connected to a control system.

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