Cutting device and detection system

Abstract

This application relates to a cutting device and detection system, applied in the field of cigarette production equipment. It includes a blade holder and a cutting roller rotatably mounted on the blade holder. The cutting device also includes an auxiliary cutting roller rotatably mounted on the blade holder, forming a cutting gap between the auxiliary and auxiliary rollers for the material to be cut to pass through. The circumferential surface of the cutting roller is provided with cutting units, configured to cut the material as it passes through the cutting gap. By providing cutting units on the circumferential surface of the cutting roller, this application allows the material to be mechanically cut as it passes through the cutting gap. This eliminates the need for operators to directly and prolongedly hold the material to be cut; they only need to feed it into the cutting gap to complete the operation. This significantly reduces the area and time of contact between the operator's hands and the material, effectively reducing the risk of additional moisture contamination introduced by hand sweat, body temperature, etc., thereby ensuring the original state of the test sample and improving the accuracy of the test results.

Description

Technical Field

[0001] This application relates to the field of cigarette manufacturing equipment, and in particular to a cutting device and detection system. Background Technology

[0002] In the process control of cigarette production, the moisture content of cigarette packaging paper has a significant impact on the key indicator of finished cigarette moisture. Therefore, it is necessary to sample and test the moisture content of cigarette packaging paper. When testing the moisture content of cigarette packaging paper, it is usually necessary to cut the packaging paper into samples of a specified size so that its moisture content can be accurately determined by drying method.

[0003] However, current cutting methods mostly rely on manual operation, which is inefficient and prone to moisture errors due to human contact, affecting the accuracy and repeatability of test results. Utility Model Content

[0004] Therefore, it is necessary to provide a cutting device and detection system to address the problems of low efficiency and moisture error caused by human contact in manual operation.

[0005] In a first aspect, this application provides a cutting device, which adopts the following technical solution:

[0006] A cutting device includes a blade holder and a cutting roller rotatably mounted on the blade holder. The cutting device also includes an auxiliary cutting roller rotatably mounted on the blade holder and forming a cutting gap between the auxiliary and auxiliary cutting rollers for material to be cut to pass through. The circumferential surface of the cutting roller is provided with cutting units, which are configured to cut the material when it passes through the cutting gap.

[0007] In one embodiment, the cutting unit includes a plurality of cutting blades arranged in an alternating pattern on the surface of the cutting roller, the edges of all the cutting blades forming a grid-like cutting line.

[0008] In one embodiment, the auxiliary blade roller is driven to cooperate with the cutting blade roller.

[0009] In one embodiment, the cutting line includes a plurality of first cutting lines extending parallel to the axis of the cutting roller, and a plurality of second cutting lines extending circumferentially around the cutting roller; wherein the first cutting lines are spaced apart along the circumferential direction of the cutting roller, and the second cutting lines are spaced apart along the axial direction of the cutting roller.

[0010] In one embodiment, the first cutting line is evenly distributed along the circumferential direction of the cutting roller, and the second cutting line is evenly distributed along the axial direction of the cutting roller.

[0011] In one embodiment, the cutting device further includes an adjusting member mounted on the blade holder and used to adjust the contact pressure between the cutting blade roller and the auxiliary blade roller.

[0012] In one embodiment, the adjusting member includes an adjusting screw connected to the cutting roller, the adjusting screw passing through and threaded to the blade holder.

[0013] In one embodiment, the cutting device further includes a drive member connected to the cutting roller, the drive member being used to drive the cutting roller to rotate.

[0014] In one embodiment, the cutting device further includes a housing connected to the blade holder and forming an area between the housing and the blade holder for accommodating the cutting blade roller and the auxiliary blade roller. The housing includes a clearance groove extending through the material transport direction and communicating with the cutting gap for material transport.

[0015] Secondly, this application provides a detection system, which adopts the following technical solution:

[0016] A detection system includes the cutting device described above.

[0017] The aforementioned cutting device, by setting cutting units on the circumferential surface of the cutting roller, allows materials to be mechanically cut as they pass through the cutting gap. This eliminates the need for operators to hold the material to be cut directly and for extended periods; they only need to feed it into the cutting gap to complete the operation. This significantly reduces the area and time of contact between the operator's hands and the material, effectively reducing the risk of additional moisture contamination caused by hand sweat, body temperature, and other factors. As a result, the original state of the test sample is preserved, and the accuracy of the test results is improved. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the cutting device after the housing is hidden in one embodiment of this application.

[0019] Figure 2 for Figure 1 A structural diagram from another perspective.

[0020] Figure 3 This is a three-dimensional structural diagram of the cutting device in one embodiment of this application.

[0021] Figure 4 for Figure 3 A schematic diagram of the three-dimensional structure from another perspective.

[0022] Attached image annotations:

[0023] 1. Blade holder; 2. Cutting roller; 21. Cutting blade; 211. First cutting line; 212. Second cutting line; 3. Auxiliary cutting roller; 4. Drive unit; 5. Adjusting unit; 6. Front cover plate; 61. Feed chute; 7. Rear cover plate; 71. Discharge chute; 8. Cutting gap; 9. Protective strip. Detailed Implementation

[0024] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0025] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0026] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0029] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0030] In the process control of cigarette production, the moisture content of cigarette packaging paper has a significant impact on the key indicator of finished cigarette moisture. Therefore, it is necessary to sample and test the moisture content of cigarette packaging paper. The moisture testing process usually adopts the drying method, which requires manually cutting the cigarette packaging paper first, then drying it in an oven, and finally calculating the moisture content by the change in weight of the material before and after drying.

[0031] In this process, the manual cutting of packaging paper has a significant impact on the accuracy of moisture detection. Problems include inconsistent fragment size during manual crushing, the influence of hand-holding the packaging paper on moisture content, excessive cutting time leading to prolonged contact between the material and air, and low efficiency in manual cutting making it difficult to increase the sample size for testing.

[0032] Based on the above, current inspection methods have large errors and are difficult to meet the increasingly stringent requirements for cigarette manufacturing process control. There is an urgent need to design a method that can achieve high-efficiency, fixed-area cutting of cigarette packaging paper according to the requirements of packaging paper moisture detection process, thereby improving the cutting efficiency of packaging paper and reducing interference factors in the packaging paper moisture detection process.

[0033] The following is in conjunction with the appendix Figure 1-4 The embodiments of this application will be described in further detail.

[0034] See Figure 1 , Figure 1 This illustration shows a schematic diagram of the cutting device after the housing is concealed in one embodiment of this application. Figure 2 It shows Figure 1A structural diagram from another perspective.

[0035] One embodiment of this application provides a cutting device, including a blade holder 1 that serves as a main support. The blade holder 1 is typically made of sheet metal through precision machining, which enables the blade holder 1 itself to have sufficient rigidity and strength to ensure that the components mounted on it are stably positioned and accurately aligned.

[0036] The cutting device also includes a cutting roller 2 and an auxiliary roller 3, which are rotatably mounted in parallel within the blade holder 1 via bearing assemblies (not shown). The auxiliary roller 3 is configured to be driven by the cutting roller 2. The cutting roller 2, as the driving roller, is rotatably supported on the side plates of the blade holder 1 via bearing assemblies at both ends. The auxiliary roller 3, as the driven roller, is mounted in the same manner, ensuring that its axis is strictly parallel to the axis of the cutting roller 2, forming a fine cutting gap 8 between their surfaces, through which the material to be cut passes.

[0037] Specifically, the circumferential surface of the cutting roller 2 is provided with cutting units for material cutting. When the material passes through the cutting gap 8, it can be divided into fragments of appropriate size under the cutting action of the cutting units to meet the material cutting and testing requirements. In this embodiment, the material can specifically be cigarette packaging paper. It is understood that, based on actual production needs, the material can also be tobacco leaves or other sheet materials.

[0038] The aforementioned cutting device, by setting cutting units on the circumferential surface of the cutting roller 2, allows materials to be directly cut as they pass through the cutting gap 8. This eliminates the need for operators to hold the material to be cut directly and for extended periods; they only need to feed it into the cutting gap 8 to complete the operation. This reduces the area and time of contact between the operator's hands and the material, effectively reducing the risk of additional moisture contamination caused by hand sweat, body temperature, and other factors. As a result, the original state of the material sample to be cut is preserved, and the accuracy of the test results is improved.

[0039] Continue reading Figure 1 and Figure 2 As shown in the embodiment of this application, the auxiliary cutter roller 3 is preferably a smooth, hard roller, the surface of which fits with the cutting edge 21 of the cutting roller 2. With the aid of precise bearing installation, the auxiliary cutter roller 3 can achieve a good driven fit with the cutting roller 2.

[0040] When the cutting roller 2 rotates, the friction between the cutting edge 21 and the surface of the auxiliary roller 3 naturally drives the auxiliary roller 3 to rotate synchronously in the opposite direction. This design not only achieves automatic feeding and stable conveying of materials, but also creates a highly efficient shearing action, making the cutting process smooth and with low resistance, and avoiding excessive wear of the cutting edge 21.

[0041] Specifically, the cutting unit includes several staggered cutting blades 21. The edges of these cutting blades 21 together form a grid-like cutting line. The cutting line is formed by multiple first cutting lines 211 extending parallel to the axis of the roller and evenly distributed around the circumference, and multiple second cutting lines 212 extending circumferentially around the roller and evenly distributed in the axial direction. The grid-like cutting line design ensures that any packaging paper passing through it will be cut into several square fragments for subsequent inspection.

[0042] In actual operation, the spacing between the first cutting lines 211 and the spacing between the second cutting lines 212 can be adjusted according to actual needs. By adjusting the arrangement of the cutting lines, the function of cutting out fragments of different shapes and sizes can be achieved.

[0043] In some other embodiments, all the first cutting lines 211 are evenly distributed along the circumferential direction of the cutting roller 2, and all the second cutting lines 212 are evenly distributed along the axial direction of the cutting roller 2, so that the material to be cut is cut into several fragments with the same area and size after passing through the cutting gap 8, which fundamentally eliminates the moisture detection error caused by the difference in material size.

[0044] See Figure 1 As shown, in some embodiments, in order to ensure that the cutting effect is adaptable to materials of different materials or thicknesses, the cutting device further includes an adjusting member 5. The adjusting member 5 is mounted on the blade holder 1 and is used to drive the cutting blade roller 2 to move toward or away from the auxiliary blade roller 3, so as to effectively adjust the contact pressure between the cutting blade roller 2 and the auxiliary blade roller 3.

[0045] In this embodiment, the adjusting member 5 can specifically be an adjusting screw acting on the bearing seat of the cutting roller 2, so as to... Figure 2 As shown in the example, the adjusting screw passes through the threaded hole of the blade holder 1 along the height direction of the blade holder 1, and the end of the adjusting member 5 is rotatably connected to the outer ring of the bearing. By screwing in or out the adjusting member 5, the contact pressure between the cutting edge of the cutting blade roller 2 and the cutting blade 21 on it and the surface of the auxiliary blade roller 3 can be finely adjusted.

[0046] In this embodiment, the setting of the adjusting member 5 allows the operator to easily adjust the cutting gap 8 to the optimal state according to actual needs, which not only ensures effective cutting of standard materials, but also allows for obtaining a complete cutting line when facing slightly uneven materials in actual operation.

[0047] Combination Figure 3 As shown, Figure 3A perspective structural schematic diagram of a cutting device according to an embodiment of this application is shown. In some embodiments, the cutting device further includes a driving member 4 connected to the cutting roller 2. The driving member 4 is used to drive the cutting roller 2 to rotate around its own axis, and to drive the auxiliary roller 3 to rotate synchronously with the cutting roller 2 during the material cutting process, so as to achieve a fast and uniform cutting operation on the material.

[0048] In terms of drive, the cutting device preferably adopts manual operation to adapt to the harsh industrial power management environment. The drive component 4 can specifically be a drive rocker arm. Specifically, a drive rocker arm extending outward is fixedly connected to one end of the shaft of the cutting roller 2. The operator can directly drive the cutting roller 2 to rotate by reciprocating the drive rocker arm. This purely mechanical drive method eliminates complex components such as motors and reducers, making the device simple in structure, low in cost, easy to maintain, and completely avoiding electrical safety risks.

[0049] Furthermore, the drive rocker arm provides the operator with direct force feedback. During the cutting process, the operator can judge whether the cutting is smooth by feel, so that the operator can detect abnormalities in time and make adaptive adjustments to the contact pressure between the cutting roller 2 and the auxiliary roller 3 with the help of the adjusting component 5.

[0050] In some other embodiments, the drive unit 4 may also be a drive motor mounted on the blade holder 1 and connected to the cutting roller 2. Under the drive of the drive motor, the cutting roller 2 can rotate at a uniform speed or a regular speed change around its own axis, which helps to realize automated cutting operations.

[0051] Combination Figure 3 and Figure 4 As shown, Figure 4 It shows Figure 3 A three-dimensional structural diagram from another perspective. In some embodiments, for operational safety considerations, the cutting device is also provided with a complete protective housing structure. The housing specifically includes two parts: a front cover plate 6 and a rear cover plate 7, which are typically made of lightweight and strong materials (such as aluminum alloy or engineering plastics).

[0052] Specifically, the front cover plate 6 and the rear cover plate 7 are fastened to the main frame of the blade holder 1 by screws or other reliable means, together forming a closed or semi-closed safety space, which completely covers the high-speed rotating cutting roller 2 and auxiliary cutting roller 3, thereby effectively preventing the operator's hands, clothing or hair from accidentally touching the moving parts, which complies with the safety production standards.

[0053] A strip-shaped through-hole 61 is provided on the front cover plate 6. The position of the through-hole 61 is precisely aligned with the internal cutting gap 8, and its opening direction is consistent with the material conveying direction. The material to be cut can be fed into the cutting gap 8 through the through-hole 61 for cutting. This design ensures that the entire feeding and cutting process is carried out under protection, guaranteeing safety and preventing accidental contamination of the sample by the external environment.

[0054] Furthermore, in some other embodiments, the cutting device also includes a protective strip 9 disposed on the front cover plate 6 and / or the rear cover plate 7. The protective strip 9 is fixed to the outer surface of the front cover plate 6 and / or the rear cover plate 7 and is located above the strip-shaped feed inlet 61 / discharge outlet 71. The protective strip 9 is generally elongated.

[0055] The protective strip 9 is preferably made of metal or high-hardness engineering plastic. Its length direction is parallel to the feed inlet 61 and / or discharge outlet 71 below, and it is fixed to the front cover plate 6 and / or rear cover plate 7 by welding, screwing, or integral molding. Most importantly, the design of this protective strip 9 makes it protrude from the outer surface of the front cover plate 6 and / or rear cover plate 7, forming a physical barrier.

[0056] When an operator holds materials and prepares to feed them into the feed chute 61 or remove them from the discharge chute 71, their hand or sleeve will first come into contact with the raised protective strip 9. The protective strip 9 serves two purposes: firstly, it acts as a tactile reminder, alerting the operator that they are approaching the cutting area; secondly, it forms an effective safety buffer zone, preventing the operator's fingers from accidentally bending excessively or slipping into the narrow feed chute 61 during normal feeding or retrieving movements. Similarly, loose clothing or hair is also less likely to cross this raised barrier and reach the danger zone during operation.

[0057] In this embodiment, by adding a passive, physical protective barrier that does not rely on human awareness to the original protective shell, the overall protection level of the cutting device can be further improved, making the operation process safer and more reliable.

[0058] In summary, the cutting device shown in this application, through the synergistic action of the blade holder 1, the cutting roller 2 with a grid-like cutting line, the driven auxiliary blade roller 3, the adjustable pressure adjustment component 5, the driving component 4, and the safety housing composed of the front cover plate 6 and the rear cover plate 7, successfully achieves the standardization and mechanization of the sample preparation process for cigarette packaging paper. The operator only needs to feed the packaging paper into the feed slot 61 of the front cover plate 6 and activate the driving component 4 to obtain a large number of regularly shaped, uniformly sized material fragments in a short time.

[0059] This design greatly improves detection efficiency and reduces systematic errors caused by factors such as inconsistent manual operation, hand contamination, and excessive contact time between the sample and air, providing a fundamental guarantee for obtaining accurate, reliable, and repeatable moisture detection data.

[0060] In some embodiments, this application also provides a detection system (not shown) that integrates the cutting device as shown in any of the above embodiments as a sample preparation unit with standard ovens, high-precision balances, and other detection equipment to construct a high-efficiency and standard moisture detection system for cigarette packaging paper. In this detection system, the standard samples prepared by the cutting device ensure the uniformity of the detection source, thereby significantly improving the data quality and process guidance value of the entire detection system.

[0061] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A cutting apparatus characterized by comprising: The cutting device includes a blade holder and a cutting roller rotatably mounted on the blade holder, and further includes: An auxiliary cutter roller is rotatably mounted on the cutter holder and forms a cutting gap between itself and the cutting cutter roller to allow the material to be cut to pass through. The circumferential surface of the cutting roller is provided with a cutting unit, which is configured to cut the material when the material passes through the cutting gap.

2. The cutting apparatus of claim 1, wherein, The cutting unit includes multiple cutting blades arranged in an alternating pattern on the surface of the cutting roller, and the edges of all the cutting blades together form a grid-like cutting line.

3. The cutting apparatus of claim 2, wherein, The auxiliary cutter roller is in passive engagement with the cutting cutter roller.

4. The cutting apparatus of claim 2, wherein, The cutting line includes multiple first cutting lines extending parallel to the axis of the cutting roller, and multiple second cutting lines extending circumferentially around the cutting roller; wherein the first cutting lines are spaced apart along the circumferential direction of the cutting roller, and the second cutting lines are spaced apart along the axial direction of the cutting roller.

5. The cutting apparatus of claim 4, wherein, The first cutting line is evenly distributed along the circumferential direction of the cutting roller, and the second cutting line is evenly distributed along the axial direction of the cutting roller.

6. The cutting apparatus according to any one of claims 1 to 5, wherein The cutting device further includes an adjusting member, which is mounted on the blade holder and is used to adjust the contact pressure between the cutting blade roller and the auxiliary blade roller.

7. The cutting apparatus of claim 6, wherein, The adjusting component includes an adjusting screw connected to the cutting roller, the adjusting screw being threaded through and connected to the blade holder.

8. The cutting apparatus according to any one of claims 1 to 5, wherein The cutting device further includes a drive unit connected to the cutting roller, the drive unit being used to drive the cutting roller to rotate.

9. The cutting apparatus according to any one of claims 1 to 5, wherein The cutting device further includes a housing connected to the blade holder and forming an area between the housing and the blade holder for accommodating the cutting blade roller and the auxiliary blade roller. The housing includes a clearance groove extending through the material conveying direction and communicating with the cutting gap for material conveying.

10. A detection system characterized by, The detection system includes the cutting device as described in any one of claims 1-9.

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