Five-cursor positioning cigarette frame paper cutting device and cutting method

Abstract

The invention provides a five-cursor positioning cigarette frame paper cutting device and a cutting method. 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 invention, 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), and calculates the phase difference and the compensation amount in combination with the accurate control of the electric control system and the servo motor (10). 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 invention belongs to the technical field of cigarette packaging, and in particular relates to a five-cursor positioning cigarette frame paper cutting device and a cutting method. Background Art

[0002] With the rapid development of science and technology, especially the continuous advancement of digital and intelligent technologies, all walks of life are experiencing unprecedented changes and innovations. In the tobacco industry, this trend is also significant, especially in the field of cigarette product packaging. As a highly commercialized product, cigarette packaging not only carries the basic function of protecting the product, but also becomes an important carrier for 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 currently difficult to meet the needs of modern marketing for personalization, interactivity and information volume. In recent years, as consumers' requirements for product quality, cultural connotation and purchasing experience continue to increase, 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 QR codes has emerged, adding new vitality to cigarette packaging.

[0004] However, these complex and sophisticated design elements have put forward higher requirements on the production process of cigarette packaging. Traditional positioning and cutting technologies are difficult to achieve high-precision, high-quality packaging effects while ensuring production efficiency. Especially in modern cigarette packaging equipment, with the rapid improvement of production efficiency, the production efficiency of packaging machines in many domestic cigarette factories has reached 700 packs / minute or even higher. The existing cigarette packaging equipment has bottlenecks in positioning accuracy and cutting efficiency, and the demand for high-precision positioning and high-efficiency cutting is becoming more and more urgent. Therefore, how to achieve precise positioning and precise cutting of packaging materials such as cigarette frame paper, so as 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, while the cutter cuts intermittently. Only by accurately determining the frame paper's travel speed can the cutter's cutting timing be adjusted to ensure that the cutter accurately cuts to the predetermined position, such as the predetermined dotted line position or the predetermined outer contour mold line. If the cutting timing is wrong, cutting too early or too late will result in inaccurate cutting. Therefore, how to accurately measure the one-dimensional travel speed of the frame paper so as to accurately determine the cutting timing of the cutter based on this speed is crucial to achieve precise positioning and precise cutting of packaging materials such as cigarette frame paper.

[0006] The present invention is proposed to solve the above-mentioned problems. Summary of the invention

[0007] In order to solve the above technical problems, the present invention provides a five-cursor positioning cigarette frame paper cutting device, comprising the following components:

[0008] An automatic loading and unloading device 4, which is located at the uppermost stream of the entire cutting device;

[0009] A front cursor sensor 8 and a back cursor sensor 9 located downstream of the automatic loading and unloading device 4, wherein the front cursor sensor 8 and the back cursor sensor 9 are located above and below the cigarette frame paper and are arranged opposite to each other;

[0010] The cigarette frame paper upper transmission wheel 5 and the cigarette frame paper lower transmission wheel 6 are located downstream of the front cursor sensor 8 and the back cursor sensor 9, and the cigarette frame paper upper transmission wheel 5 and the cigarette frame paper lower transmission wheel 6 are located above and below the cigarette frame paper and are arranged opposite to each other;

[0011] A cigarette frame paper transfer track 7 located downstream of the cigarette frame paper upper transfer wheel 5 and the cigarette frame paper lower transfer wheel 6;

[0012] A cigarette frame paper A cutter 11 and a cigarette frame paper B cutter 12 are arranged in sequence above the cigarette frame paper transmission track 7;

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

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

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

[0016] Preferably, a negative pressure air suction port 18 is provided at the bottom of the negative pressure air suction extractor 17, and the negative pressure air suction port 18 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. The negative pressure air suction port 18 is used to absorb the cut single cigarette frame paper, and transport it to the cigarette frame paper forming mold box through the rotating extraction arm 15, and complete the folding and gluing process of the cigarette frame paper in the cigarette frame paper forming mold box.

[0017] Preferably, the front cursor sensor 8 and the back cursor sensor 9 are also connected to an 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 stationary panel, and the upper part is a movable knife.

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

[0020] On the other hand, the present invention provides a five-cursor positioning cigarette frame paper cutting method, using the above-mentioned five-cursor positioning cigarette frame paper cutting device, the front side of the cigarette frame paper is printed with a front dotted line, a front lock 2, a front outer contour die-cutting line, product information, a gluing area and a first cursor 1, the number of the first cursor 1 is 1, and the product information includes a color pattern, a QR code, and an advertising slogan; the back side of the cigarette frame paper is printed with a back dotted line, a back lock 14, a back outer contour die-cutting line and a second cursor 3, the number of the second cursor 3 is 4, the front dotted line and the back dotted line, the front lock 2 and the back lock 14, the front outer contour die-cutting line and the back outer contour die-cutting line are symmetrically arranged about the cigarette frame paper, and the method comprises the following steps:

[0021] Step (1): Place the cigarette frame paper on the automatic loading and unloading device 4 and ensure that it is firmly fixed. Check the quality of the cigarette frame paper to ensure that its surface is flat and undamaged, and that the five cursors are clearly visible; start the automatic loading and unloading device 4 to transfer the cigarette frame paper.

[0022] Step (2): When the cigarette frame paper is transmitted to the positions of the front cursor sensor 8 and the back cursor sensor 9, 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 their position information.

[0023] Step (3):

[0024] S401 Image acquisition: The cigarette frame paper moves in a straight line in one-dimensional space. The electronic control system collects 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 images of the five cursors and the real-time dynamic position images of the five cursors during the transmission of the cigarette frame paper.

[0025] S402 Image preprocessing: preprocess the collected image, including denoising, grayscale conversion, binarization and other operations. The cursor and background in the image are separated by binarization operation to facilitate further processing.

[0026] S403 Feature extraction: extract useful feature information from the preprocessed image, identify the five cursors in the image, determine the position information of the five cursors of the cigarette frame paper in the currently acquired image, and compare this position information with the standard position of the cigarette frame paper preset by the system to calculate the phase difference ΔΦ.

[0027] S404 Real-time feedback and control: The electronic control system will calculate the compensation amount Δv based on the phase difference ΔΦ, provide real-time feedback, and instruct the servo motor 10 to change the system-preset cigarette frame paper transmission speed for speed compensation, and 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.

[0028] Step (4): When the cigarette frame paper is accurately positioned, the control system is started, and the cigarette frame paper A cutter 11 and the cigarette frame paper B cutter 12 start to operate respectively; the cigarette frame paper A cutter 11 and the cigarette frame paper B cutter 12 adopt flat cutters, the cigarette frame paper A cutter 11 cuts the front dotted line, the back dotted line and the front lock 2 and the back lock 14 of the cigarette frame paper, and the cigarette frame paper B cutter 12 cuts the front outer contour die-cutting line and the back outer contour die-cutting line of the cigarette frame paper; the movable knives of the cigarette frame paper A cutter 11 and the cigarette frame paper B cutter 12 move up and down, and each up and down reciprocating movement completes the cutting of a piece of cigarette frame paper; when the movable knife stops cutting, the movable knife and the cigarette frame paper are in a separated state, and the position of the cigarette frame paper is adjusted at this time.

[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 position of the five cursors of the cigarette frame paper detected by the front cursor sensor 8 and the back cursor sensor 9 is B. In one-dimensional space, that is, the transmission direction of the cigarette frame paper:

[0032] The starting position of the transmission wheel 5 on the cigarette frame paper 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 the 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 system preset cigarette frame paper transmission speed is defined as v0, and the adjusted cigarette frame paper transmission speed is defined as v1.

[0036] The calculation formula of compensation amount is:

[0037] Δv=v1-v0=k·ΔΦ

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

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

[0040] The compensation amount Δv is determined according to the numerical value of the phase difference ΔΦ. 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. 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. At this time, Δv takes a positive value and the transmission speed needs to be increased.

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

[0042] 1. Initial preparation and material transfer

[0043] 1. Placement of cigarette frame paper: Place the cigarette frame paper on the automatic loading and unloading device 4 and ensure that it is firmly fixed. Check the quality of the cigarette frame paper to ensure that its surface is flat and undamaged, and that the five cursors are clearly visible.

[0044] 2. Start the device: turn on the power switch of the cutting device, start the automatic loading and unloading device 4, and transfer the cigarette frame paper.

[0045] 2. Cursor recognition and position detection

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

[0047] 2. Image acquisition and processing: The electronic control system collects 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 and the real-time dynamic position image during the transmission process, and performs preprocessing, including denoising, grayscale conversion, binarization and other operations 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 5 extracted cursors 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 cursor position and the system preset position, 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] 3. Speed ​​compensation and precise positioning

[0050] Real-time feedback and control: The electronic control system will calculate the compensation amount Δv based on the phase difference ΔΦ, provide real-time feedback, and instruct the servo motor 10 to change the system-preset cigarette frame paper transmission speed for speed compensation, and 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 transmission speed of the cigarette frame paper preset by the system, v1 is the adjusted transmission speed of the cigarette frame paper, and k is the compensation gain. The compensation amount Δv is determined according to the value of the phase difference 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 the transmission speed needs to be reduced (Δv takes a negative value); if the phase difference ΔΦ<0, it means that the actual transmission position of the cigarette frame paper lags behind the standard position, and the transmission speed needs to be increased (Δv takes a positive value).

[0052] 4. Cutting and Extraction

[0053] Cutting operation: when the cigarette frame paper is accurately positioned, the cigarette frame paper A cutter 11 and the cigarette frame paper B cutter 12 start to operate respectively; the cigarette frame paper A cutter 11 and the cigarette frame paper B cutter 12 use flat cutters, the cigarette frame paper A cutter 11 cuts the front dotted line, the back dotted line and the front lock 2 and the back lock 14 of the cigarette frame paper, and the cigarette frame paper B cutter 12 cuts the front outer contour die-cutting line and the back outer contour die-cutting line of the cigarette frame paper; the movable knives of the cigarette frame paper A cutter 11 and the cigarette frame paper B cutter 12 move up and down, and each up and down reciprocating movement completes the cutting of a piece of cigarette frame paper; when the movable knife stops cutting, the movable knife and the cigarette frame paper are in a separated state, and the position of the cigarette frame paper is adjusted at this time.

[0054] Extraction and subsequent processing: During the cutting process of cigarette frame paper, the negative pressure wind suction extraction arm 13 remains in working state, ready to suck the cut cigarette frame paper at any time. After the cigarette frame paper is cut, the negative pressure wind 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.

[0055] Beneficial effects of the present invention:

[0056] 1. The present invention provides a five-cursor positioning cigarette frame paper cutting device. A front cursor sensor and a back cursor sensor are respectively arranged on the front and back sides of the cigarette frame paper. Through the coordinated work of the two sensors, the position information of the five cursors on the front and back sides of the cigarette frame paper can be accurately detected. The five cursors on the front and back sides of the cigarette frame paper that can be identified by machine vision are used as reference points. The one-dimensional travel speed of the reference points is determined to accurately determine the one-dimensional travel speed of the entire cigarette frame paper. After calculating the phase difference and the compensation amount, combined with the precise control of the electronic control system and the servo motor, the system-preset cigarette frame paper transmission speed can be adjusted in real time to compensate for the error caused by the transmission process, thereby ensuring the accuracy of the cutting position and accurately determining the knife drop timing of the cigarette frame paper A cutter and the cigarette frame paper B cutter, effectively solving the technical problem of inaccurate cutting of the existing cigarette frame paper cutting device and greatly improving the cutting accuracy.

[0057] 2. The five-cursor positioning cigarette frame paper cutting method provided by the present invention has a precise cutting technology that can ensure that the cutting edge of the cigarette frame paper is smooth and burr-free, improves the overall quality of the product, can significantly reduce the scrap rate, improve the utilization rate of raw materials, and further reduce production costs. The high-quality cigarette frame paper cutting effect can enhance the beauty and refinement of the product, thereby enhancing the brand image and consumer satisfaction.

[0058] 3. The present invention provides a five-cursor positioning cigarette frame paper cutting device, in which the electronic control system can read the data of the cursor sensor in real time, and perform rapid calculation and feedback based on the data, thereby achieving precise control of the transmission speed of the cigarette frame paper and enhancing the intelligence level of the production process.

[0059] 4. The present invention provides a five-cursor positioning cigarette frame paper cutting device, which can complete the cutting task of a large number of cigarette frame papers in a short time by using a flat cutter design for the cigarette frame paper A cutter and the cigarette frame paper B cutter, thereby significantly improving production efficiency. The cutting device can be flexibly adjusted according to different paper types, thicknesses, widths and other parameters, and can achieve efficient cutting of different types of cigarette frame papers by setting parameters through the control system.

[0060] 5. The five-cursor positioning cigarette frame paper cutting device provided by the present invention realizes a fully automated production process of cigarette frame paper from transmission, cutting to extraction through the introduction of automatic loading and unloading devices, negative pressure air suction extraction arms and other automated components, thereby reducing manual intervention and lowering production costs.

[0061] 6. The present invention provides a five-cursor positioning cigarette frame paper cutting device. The five-cursor design provides multiple positioning references. Even if some cursors deviate or fail, the other cursors can still ensure the accuracy of the cutting position, thereby improving the reliability and fault tolerance of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1 A three-dimensional diagram of a five-cursor positioning cigarette frame paper cutting device provided by the present invention.

[0063] Figure 2 This is a front view of a five-cursor positioning cigarette frame paper cutting device provided by the present invention.

[0064] Figure 3 It is a schematic structural diagram of the five-cursor positioning cigarette frame paper of the present invention.

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

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

[0067] 1-first cursor; 2-front lock; 3-second cursor; 4-automatic loading and unloading device; 5-frame paper upper 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 lock; 15-rotating extraction arm; 16-connecting rod; 17-negative pressure air suction extractor; 18-negative pressure air suction port. DETAILED DESCRIPTION

[0068] The present invention is further described in detail below in conjunction with embodiments.

[0069] Those skilled in the art will appreciate that the following examples are only used to illustrate the present invention and should not be considered to limit the scope of the present invention. If no specific techniques or conditions are specified in the examples, the techniques or conditions described in the literature in the art or the product specifications are used. If the manufacturer of the materials or equipment used is not specified, they are all conventional products that can be purchased.

[0070] Those skilled in the art will appreciate that, unless expressly stated otherwise, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when we refer to an element as being "connected" to another element, it may be directly connected to the other element, or there may be intermediate elements. In addition, the "connection" used herein may include wireless connections.

[0071] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two. The terms "inside", "upper", "lower", etc., indicating positions or state relationships, are based on the positions or state relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operate in a specific position, and therefore cannot be understood as limiting the present invention.

[0072] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "provided with" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention will be understood according to specific circumstances.

[0073] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as those generally understood by those skilled in the art in the art to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless defined as herein.

[0074] Example 1

[0075] like Figure 3 As shown, the front side of the five-cursor positioning cigarette frame paper is printed with dotted lines, a front lock 2, an outer contour die-cutting line, product information, a gluing area and a first cursor 1, the number of the first cursor 1 is 1, and the product information includes a color pattern, a QR code, and an advertising slogan. The back side is printed with dotted lines, a back lock 14, an outer contour die-cutting line and a second cursor 3, the number of the second cursor 3 is 4, the dotted lines and the outer contour die-cutting line are symmetrically arranged, and the front lock 2 and the back lock 14 are symmetrically arranged.

[0076] like Figure 1 , 2 As shown in FIG4 , a five-cursor positioning cigarette frame paper cutting device comprises the following components:

[0077] An automatic loading and unloading device 4, which is located at the uppermost stream of the entire cutting device;

[0078] A front cursor sensor 8 and a back cursor sensor 9 located downstream of the automatic loading and unloading device 4, wherein the front cursor sensor 8 and the back cursor sensor 9 are located above and below the cigarette frame paper and are arranged opposite to each other;

[0079] The cigarette frame paper upper transmission wheel 5 and the cigarette frame paper lower transmission wheel 6 are located downstream of the front cursor sensor 8 and the back cursor sensor 9, and the cigarette frame paper upper transmission wheel 5 and the cigarette frame paper lower transmission wheel 6 are located above and below the cigarette frame paper and are arranged opposite to each other;

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

[0081] A cigarette frame paper A cutter 11 and a cigarette frame paper B cutter 12 are arranged in sequence above the cigarette frame paper transmission track 7;

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

[0083] The cigarette frame paper upper transmission wheel 5 and the cigarette frame paper lower transmission wheel 6 are also connected to a servo motor 10 .

[0084] The negative pressure air suction extraction arm 13 includes 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 to the negative pressure air suction extractor 17, and is hinged to 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, 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. The negative pressure air suction port 18 is used to absorb the cut single cigarette frame paper, and transport it to the cigarette frame paper forming mold box through the rotating extraction arm 15, and complete the folding and gluing process of the cigarette frame paper in the cigarette frame paper forming mold box.

[0086] The front cursor sensor 8 and the back cursor sensor 9 are also connected to 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, wherein the lower part is a stationary panel and the upper part is a movable knife.

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

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

[0090] Step (1): Place the cigarette frame paper on the automatic loading and unloading device 4 and ensure that it is firmly fixed. Check the quality of the cigarette frame paper to ensure that its surface is flat and undamaged, and that the five cursors are clearly visible; start the automatic loading and unloading device 4 to transfer the cigarette frame paper.

[0091] Step (2): When the cigarette frame paper is transmitted to the positions of the front cursor sensor 8 and the back cursor sensor 9, 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 their position information.

[0092] Step (3):

[0093] S401 Image acquisition: The cigarette frame paper moves in a straight line in one-dimensional space. The electronic control system collects 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 images of the five cursors and the real-time dynamic position images of the five cursors during the transmission of the cigarette frame paper.

[0094] S402 Image preprocessing: preprocess the collected image, including denoising, grayscale conversion, binarization and other operations. The cursor and background in the image are separated by binarization operation to facilitate further processing.

[0095] S403 Feature extraction: extract useful feature information from the preprocessed image, identify the five cursors in the image, determine the position information of the five cursors of the cigarette frame paper in the currently acquired image, and compare this position information with the standard position of the cigarette frame paper preset by the system to calculate the phase difference ΔΦ.

[0096] S404 Real-time feedback and control: The electronic control system will calculate the compensation amount Δv based on the phase difference ΔΦ, provide real-time feedback, and instruct the servo motor 10 to change the system-preset cigarette frame paper transmission speed for speed compensation, and 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.

[0097] Step (4): When the cigarette frame paper is accurately positioned, the control system is started, and the cigarette frame paper A cutter 11 and the cigarette frame paper B cutter 12 start to operate respectively; the cigarette frame paper A cutter 11 and the cigarette frame paper B cutter 12 adopt flat cutters, the cigarette frame paper A cutter 11 cuts the front dotted line, the back dotted line and the front lock 2 and the back lock 14 of the cigarette frame paper, and the cigarette frame paper B cutter 12 cuts the front outer contour die-cutting line and the back outer contour die-cutting line of the cigarette frame paper; the movable knives of the cigarette frame paper A cutter 11 and the cigarette frame paper B cutter 12 move up and down, and each up and down reciprocating movement completes the cutting of a piece of cigarette frame paper; when the movable knife stops cutting, the movable knife and the cigarette frame paper are in a separated state, and the position of the cigarette frame paper is adjusted at this time.

[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, and the position of the five cursors of the cigarette frame paper detected by the front cursor sensor 8 and the back cursor sensor 9 is B. In one-dimensional space, that is, the transmission direction of the cigarette frame paper:

[0101] The starting position of the transmission wheel 5 on the cigarette frame paper 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 the phase difference ΔΦ:

[0102] ΔΦ=x2-x1.

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

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

[0105] The calculation formula of compensation amount is:

[0106] Δv=v1-v0=k·ΔΦ

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

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

[0109] The compensation amount Δv is determined according to the numerical value of the phase difference ΔΦ. 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. 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. 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 cutting method described in Embodiment 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 transmission wheel 5 on the cigarette frame paper is 100 mm, the distance x2 between the 5 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 transmission wheel 5 on the cigarette frame paper is 102 mm, and the cigarette frame paper transmission speed v0 preset by the system is 10 mm / s.

[0112] Calculate the phase difference:

[0113] ΔΦ=102-100=2mm.

[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=0.2mm / 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 take a negative value:

[0118] Δv=-0.2mm / s.

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

[0120] Since the actual transmission position of the cigarette frame paper is 2mm ahead of the standard position, the system reduces the transmission speed from 10mm / s to 9.8mm / 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 embodiment adopts the cutting device and cutting method described in Embodiment 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 transmission wheel 5 on the cigarette frame paper 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 transmission wheel 5 on the cigarette frame paper is 96 mm, and the cigarette frame paper transmission speed v0 preset by the system is 10 mm / s.

[0123] Calculate the phase difference:

[0124] ΔΦ=96-100=-4mm.

[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)=-0.4mm / s.

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

[0129] Δv=0.4mm / s.

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

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

[0132] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A five-cursor positioning cigarette frame paper cutting device, characterized in that: Includes the following components: An automatic loading and unloading device (4), the automatic loading and unloading device (4) being located at the uppermost stream of the entire cutting device; A front cursor sensor (8) and a back cursor sensor (9) located downstream of the automatic loading and unloading device (4), wherein the front cursor sensor (8) and the back cursor sensor (9) are arranged opposite to each other at the upper and lower sides of the cigarette frame paper; An upper transmission wheel (5) for cigarette frame paper and a lower transmission wheel (6) for cigarette frame paper are located downstream of the front cursor sensor (8) and the back cursor sensor (9), and the upper transmission wheel (5) for cigarette frame paper and the lower transmission wheel (6) for cigarette frame paper are located above and below the cigarette frame paper and arranged opposite to each other; A cigarette frame paper transfer track (7) located downstream of the cigarette frame paper upper transfer wheel (5) and the cigarette frame paper lower transfer wheel (6); A cigarette frame paper A cutter (11) and a cigarette frame paper B cutter (12) are arranged in sequence above the cigarette frame paper transmission rail (7); A negative pressure air suction extraction arm (13) is located downstream of the cigarette frame paper B cutter (12).

2. The five-cursor positioning cigarette frame paper cutting device according to claim 1 is characterized in that: The cigarette frame paper upper transmission wheel (5) and the cigarette frame paper lower transmission wheel (6) are also connected to a servo motor (10).

3. The five-cursor positioning cigarette frame paper cutting device according to claim 2 is characterized in that: 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 to the negative pressure air suction extractor (17), and is hinged to the rotating extraction arm (15).

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

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

6. The five-cursor positioning cigarette frame paper cutting device according to claim 5, characterized in that: 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, wherein the lower part is a stationary panel and the upper part is a movable knife.

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

8. A five-cursor positioning cigarette frame paper cutting method, characterized in that: The five-cursor positioning cigarette frame paper cutting device according to claim 7 is used, wherein the front side of the cigarette frame paper is printed with a front dotted line, a front lock buckle (2), a front outer contour die-cutting line, product information, a gluing area and a first cursor (1), the number of the first cursor (1) is 1, and the product information includes a color pattern, a QR code, and an advertising slogan; the back side of the cigarette frame paper is printed with a back dotted line, a back lock buckle (14), a back outer contour die-cutting line and a second cursor (3), the number of the second cursor (3) is 4, the front dotted line and the back dotted line, the front lock buckle (2) and the back lock buckle (14), the front outer contour die-cutting line and the back outer contour die-cutting line are symmetrically arranged with respect to the cigarette frame paper, and the method comprises the following steps: Step (1): Place the cigarette frame paper on the automatic loading and unloading device (4) and ensure that it is firmly fixed, check the quality of the cigarette frame paper to ensure that its surface is flat and undamaged, and that the five cursors are clearly visible; start the automatic loading and unloading device (4) to transfer the cigarette frame paper; Step (2): when the cigarette frame paper is transmitted to the positions of the front cursor sensor (8) and the back cursor sensor (9), the front cursor sensor (8) accurately identifies the first cursor (1) printed on the front side 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 side of the cigarette frame paper and detects their position information; Step (3): S401 image acquisition: the cigarette frame paper moves in a straight line in one-dimensional space, and the electric control system acquires real-time images of five cursors of the cigarette frame paper through a front cursor sensor (8) and a back cursor sensor (9), including initial position images of the five cursors and real-time dynamic position images of the five cursors during the transmission of the cigarette frame paper; S402 Image preprocessing: preprocessing the collected image, including denoising, grayscale conversion, binarization and other operations. The binarization operation is used to separate the cursor and the background in the image for further processing; S403 Feature extraction: extract useful feature information from the preprocessed image, identify the five cursors in the image, determine the position information of the five cursors of the cigarette frame paper in the currently acquired image, and compare this position information with the standard position of the cigarette frame paper preset by the system to calculate the phase difference ΔΦ; S404 real-time feedback and control: the electronic control system calculates the compensation amount Δv according to the phase difference ΔΦ, gives real-time feedback and instructs the servo motor (10) to change the cigarette frame paper transmission speed preset by the system to perform speed compensation, and 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; Step (4): when the cigarette frame paper is accurately positioned, the control system is started, and the cigarette frame paper A cutter (11) and the cigarette frame paper B cutter (12) start to operate respectively; the cigarette frame paper A cutter (11) and the cigarette frame paper B cutter (12) are flat cutters, the cigarette frame paper A cutter (11) cuts the front dotted line, the back dotted line and the front lock buckle (2) and the back lock buckle (14) of the cigarette frame paper, and the cigarette frame paper B cutter (12) cuts the front outer contour die-cutting line and the back outer contour die-cutting line of the cigarette frame paper; the movable knives of the cigarette frame paper A cutter (11) and the cigarette frame paper B cutter (12) move up and down, and each up and down reciprocating movement completes the cutting of a piece of cigarette frame paper; when the movable knife stops cutting, the movable knife and the cigarette frame paper are separated, and the position of the cigarette frame paper is adjusted at this time; Step (5): After the cigarette frame paper is cut, the negative pressure air suction extraction arm (13) sucks the cut cigarette frame paper and transports it to the cigarette frame paper forming mold box, and completes the folding, forming and gluing process of the cigarette frame paper in the cigarette frame paper forming mold box.

9. The five-cursor positioning cigarette frame paper cutting method according to claim 8, characterized in that: The calculation method of the phase difference ΔΦ is as follows: The standard position of the cigarette frame paper preset by the system is defined as A, and the position of the five cursors of the cigarette frame paper detected by the front cursor sensor (8) and the back cursor sensor (9) is defined as B. In one-dimensional space, that is, the transmission direction of the cigarette frame paper: The starting position of the transmission wheel (5) on the cigarette frame paper 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 the phase difference ΔΦ: ΔΦ=x2-x1.

10. The five-cursor positioning cigarette frame paper cutting method according to claim 8, characterized in that: The calculation method of the compensation amount Δv is specifically as follows: The system preset cigarette frame paper transmission speed is defined as v0, and the adjusted cigarette frame paper transmission speed is v1; The calculation formula of compensation amount is: Δv=v1-v0=k·ΔΦ k=|x1 / v o (x2-x1)-x2 / v o (x2-x1)| Among them: Δv is the compensation amount, which indicates the speed difference that needs to be adjusted, usually expressed in millimeters per second, k is the compensation gain, which is a proportional coefficient used to adjust the sensitivity of the compensation amount, ΔΦ is the phase difference, which indicates the difference between the cursor position and the standard position of the cigarette frame paper preset by the system; The compensation amount Δv is determined according to the numerical value of the phase difference ΔΦ. 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. 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. At this time, Δv takes a positive value and the transmission speed needs to be increased.

Images