Positioning structure and tobacco cutting system

Abstract

The present invention discloses a positioning structure, including: a grinding wheel grinding positioning unit, when the grinding wheel is used to grind the shredder, the grinding wheel grinding positioning unit is used to monitor whether the grinding wheel reaches the grinding position, and when the grinding wheel does not reach the grinding position, the grinding wheel grinding positioning unit sends out an alarm; a tool positioning unit, including a lower knife door strip, a shredder positioning part, an adjustment part and a locking part, the lower knife door strip can be movably connected to the shredder positioning part, the lower knife door strip is provided with a positioning groove, the adjustment part adjusts the lower knife door strip to a preset position, so that the positioning groove can position and calibrate the shredder after grinding, and when the lower knife door strip is adjusted on the shredder positioning part, the lower knife door strip is locked and fixed by the locking part. The positioning structure provided by the present invention improves the installation positioning accuracy and grinding positioning accuracy of the shredder through the tool positioning unit and the grinding wheel grinding positioning unit, thereby ensuring the stability of fixed-length shredding and shredding width. The present invention also discloses a tobacco shredding system.

Description

Technical Field

[0001] The invention relates to the technical field of tobacco, and in particular to a positioning structure and a tobacco cutting system. Background Art

[0002] The shredding equipment used in the tobacco shredding production line has a quality that is entirely controlled by the operator's experience. Different people operating the same equipment will have different shredding quality. Human experience has a greater impact on product quality, and product stability cannot be guaranteed. The production operation is not standardized enough, resulting in uneven shred width, large differences in tobacco structure, large deviations from the standard, shred quality lower than the enterprise standard pass rate and process specification pass rate, and unstable product quality.

[0003] Therefore, how to improve the qualification rate and quality stability of products is a technical problem that technicians in this field currently need to solve. Summary of the invention

[0004] In view of this, the object of the present invention is to provide a positioning structure to improve the qualified rate and quality stability of products;

[0005] Another object of the present invention is to provide a tobacco cutting system having the above positioning structure.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] A positioning structure, comprising:

[0008] A grinding wheel grinding positioning unit, when the wire cutter is ground by the grinding wheel, the grinding wheel grinding positioning unit is used to monitor whether the grinding wheel reaches the grinding position, and when the grinding wheel does not reach the grinding position, the grinding wheel grinding positioning unit sends out an alarm;

[0009] The tool positioning unit includes a lower knife door strip, a wire cutter positioning part, an adjusting part and a locking part. The lower knife door strip can be movably connected to the wire cutter positioning part, and the lower knife door strip is provided with a positioning groove for the wire cutter to pass through. The lower knife door strip is adjusted by the adjusting part to reach a preset position so that the positioning groove can position and calibrate the wire cutter after grinding. When the adjustment of the lower knife door strip on the wire cutter positioning part is completed, the lower knife door strip is locked and fixed by the locking part.

[0010] Optionally, in the above-mentioned positioning structure, the wire cutter positioning part includes a positioning plate, the locking part includes a locking screw and a locking nut, the positioning plate is provided with a first waist-shaped hole, the locking screw is connected to the lower knife gate strip through the first waist-shaped hole, the locking nut is threadedly connected to the locking screw and abuts against the positioning plate, and the first waist-shaped hole extends along the extension direction of the lower knife gate strip.

[0011] Optionally, in the above-mentioned positioning structure, the adjustment part includes an adjustment plate, an adjustment screw and a limit nut, the adjustment plates are provided at both ends of the positioning plate, the adjustment screw is connected to the lower knife door strip through the adjustment plate, and an adjustment gap is provided between the adjustment plate and the lower knife door strip, and the limit nut is connected to the adjustment screw through a thread and abuts against the adjustment plate.

[0012] Optionally, in the above-mentioned positioning structure, at least one of the two adjustment plates is provided with a second waist-shaped hole, the positioning plate is provided with a third waist-shaped hole matching the second waist-shaped hole, and the second waist-shaped hole and the third waist-shaped hole both extend along the extension direction of the lower knife door strip.

[0013] Optionally, in the above positioning structure, the grinding wheel grinding positioning unit includes a laser sensor to monitor the position of the grinding wheel through the displacement distance of the grinding wheel by the laser sensor, and the detection range of the laser sensor should be less than 60 mm.

[0014] The present invention provides a positioning structure, in the process of grinding the wire cutter, the grinding wheel grinding positioning unit monitors the position of the grinding wheel in real time to see whether it reaches the preset position to ensure the grinding positioning accuracy, and avoids the wire cutter being ground to have irregular blades such as rounded blades. At the same time, the lower knife door strip is installed on the positioning part, and the position of the lower knife door strip on the positioning part can be adjusted by the adjustment part to adjust the lower knife door strip to the preset position, and after the adjustment is completed, the lower knife door strip on the positioning part can be locked and fixed by the locking part, and the lower knife door strip is provided with a positioning groove for calibrating the wire cutter. After the wire cutter is ground by the grinding wheel, the blade roller body is driven to rotate. If each protrusion on the wire cutter can accurately pass through the corresponding positioning groove, it indicates that the position accuracy of the wire cutter on the blade roller body meets the requirements, thereby ensuring the installation accuracy of the wire cutter. Therefore, by improving the installation positioning accuracy and grinding positioning accuracy of the shredder, the stability of the clearance between the shredder and the knife gate is improved, the occurrence of raw tobacco flakes running is reduced, and the stability of fixed-length shredding and shredding width is guaranteed, thereby achieving an increase in the qualified rate of upgraded products while ensuring the stability of quality.

[0015] A tobacco shredding system comprises a positioning structure, wherein the positioning structure is the positioning structure as described in any one of the above items.

[0016] Optionally, the above tobacco shredding system further comprises an online quality monitoring and evaluation system, and the online quality monitoring and evaluation system is used to monitor the quality of tobacco shredding.

[0017] Optionally, in the above tobacco shredding system, the chain speed, compressed air pressure, knife door height, knife roll speed and shred width are monitored in real time, and the data are fitted to establish the online quality monitoring and evaluation system.

[0018] Optionally, in the above tobacco shredding system, the line quality monitoring and evaluation system collects data by online sampling, and samples at preset time to form multiple sampling groups, and finally the values ​​of each sampling group are averaged.

[0019] Optionally, the above tobacco shredding system further includes an internal control standard, which includes the line quality monitoring and evaluation system, and there are multiple internal control standards, so that one type of tobacco corresponds to one internal control standard.

[0020] The tobacco shredding system provided by the present invention has all the technical effects of the above-mentioned positioning structure due to its positioning structure, which will not be described in detail herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of a tool positioning unit disclosed in an embodiment of the present invention;

[0023] Figure 2 It is a schematic structural diagram of a lower knife door strip disclosed in an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of the structure of the adjustment unit disclosed in an embodiment of the present invention;

[0025] Figure 4 It is a schematic structural diagram of a locking portion disclosed in an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of the structure of a positioning plate disclosed in an embodiment of the present invention;

[0027] Figure 6 A schematic diagram of the structure of the adjustment plate disclosed in an embodiment of the present invention;

[0028] Figure 7It is a schematic diagram of the production process disclosed in an embodiment of the present invention.

[0029] Among them, 100 is a shredder;

[0030] 200 is the lower knife door strip, and 210 is the positioning groove;

[0031] 300 is a positioning plate, 310 is a first waist-shaped hole, 320 is an adjustment plate, 321 is a second waist-shaped hole, and 330 is a third waist-shaped hole;

[0032] 400 is a locking screw, and 410 is a locking nut;

[0033] 500 is an adjusting screw, and 510 is a limiting nut;

[0034] 600 is a knife roller body. DETAILED DESCRIPTION

[0035] The core of the present invention is to provide a positioning structure to improve the qualified rate and quality stability of products;

[0036] Another core of the present invention is to provide a tobacco cutting system with the above positioning structure.

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] like Figure 1 and Figure 2As shown, an embodiment of the present invention discloses a positioning structure, including a wire cutting tool part, a tool positioning unit and a grinding wheel grinding positioning unit. In the process of grinding the wire cutting tool, in order to reduce the problem of irregular blades such as rounded corners caused by grinding the wire cutting tool, the grinding wheel grinding positioning unit monitors the position of the grinding wheel in real time. If the grinding wheel does not reach the preset position during the grinding of the wire cutting tool, the grinding wheel grinding positioning unit will sound an alarm to prompt the staff to make timely adjustments, and then ensure the grinding positioning accuracy of the grinding wheel through the grinding wheel grinding positioning unit. At the same time, the lower knife door strip 200 in the tool positioning unit can be movably installed on the positioning part, and the position of the lower knife door strip 200 in the positioning part can be adjusted by the adjustment part. After the adjustment is completed, the lower knife door strip 200 on the positioning part can be limited and fixed by the locking part. The lower knife gate strip 200 is provided with a plurality of positioning grooves 210 spaced apart along its own extension direction. After the position adjustment of the lower knife gate strip 200 is completed, the wire cutter installed on the knife roller body 600 rotates with the knife roller body 600. If the position accuracy of the wire cutter on the knife roller body 600 after grinding reaches the set standard, the various protrusions on the wire cutter can normally pass through the corresponding positioning grooves 210 of the lower knife gate strip 200. If the position accuracy of the wire cutter on the knife roller body 600 does not reach the set standard, the wire cutter cannot pass through the lower knife gate strip 200. Then, the position accuracy of the wire cutter is detected by the tool positioning unit to ensure that the wire cutter has good installation accuracy during the wire cutting process. Therefore, through the tool positioning unit and the grinding wheel grinding positioning unit, the accuracy of the wire cutter installation position and the grinding wheel movement position is significantly improved, reducing the occurrence of the problem of raw cigarette running, and then ensuring the stability of wire cutting and wire cutting width.

[0039] like Figure 4 and Figure 5 As shown, the positioning portion of the wire cutter 100 includes a positioning plate 300, and the locking portion includes a locking screw 400 and a locking nut 410, and a first waist-shaped hole 310 is opened in the positioning plate 300, one end of the locking screw 400 passes through the first waist-shaped hole 310 and is fixedly connected to the lower knife gate strip 200, and the first waist-shaped hole 310 extends along the extension direction of the lower knife gate strip 200, so that the relative position of the lower knife gate strip 200 on the positioning plate 300 can be adjusted through the first waist-shaped hole 310, and the locking nut 410 is connected to the other end of the locking screw 400 by a threaded manner, and abuts against the positioning plate 300, thereby locking and fixing the lower knife gate strip 200 on the positioning plate 300.

[0040] like Figure 3 and Figure 4As shown, the adjustment part includes an adjustment plate 320, an adjustment screw 500 and a limit nut 510. Adjustment plates 320 are arranged at both ends of the positioning plate 300. The positioning plate 300 is installed on the knife roller body 600 through the adjustment plate 320, and a through hole is opened in the adjustment plate 320, so that one end of the adjustment screw 500 can be connected to the end of the lower knife gate strip 200 through the through hole of the adjustment plate 320, and the limit nut 510 is connected to the other end of the adjustment screw 500 by threading. At the same time, an adjustment gap is left between the end of the lower knife door strip 200 and the adjustment plate 320, that is, after the locking screw 400 and the locking nut 410 release the lock on the lower knife door strip 200, the lower knife door strip 200 can be moved in the adjustment gap by rotating the limit nut 510 on the adjusting screw 500, and the relative position of the lower knife door strip 200 on the positioning plate 300 is adjusted. After the position of the lower knife door strip 200 is adjusted, the limit nut 510 is rotated in the opposite direction so that the limit nut 510 abuts against the adjustment plates 320 at both ends of the positioning plate 300 to limit the lower knife door strip 200, and then the lower knife door strip 200 is locked and fixed to the positioning plate 300 by the locking screw 400 and the locking nut 410, so as to ensure the stability of the lower knife door strip 200.

[0041] like Figure 5 and Figure 6 As shown, at least one of the two adjustment plates 320 is provided with a second waist-shaped hole 321, and the positioning plate 300 is provided with a third waist-shaped hole 330 matched with the second waist-shaped hole 321, and the second waist-shaped hole 321 and the third waist-shaped hole 330 are both extended along the extension direction of the lower knife door strip 200. By making the adjustment between the adjustment plate 320 and the positioning plate 300 adjustable, the adjustable range of the position of the lower knife door strip 200 is increased to accommodate more wire cutters 100 with different installation positions, so that the adjustment of the lower knife door strip 200 is more flexible.

[0042] In a specific embodiment, the grinding wheel grinding positioning unit monitors the position of the grinding wheel in real time by using a laser sensor to measure the displacement distance of the grinding wheel, thereby feeding back error alarm information of the grinding wheel position. The detection range of the laser sensor should be less than 60mm, and the overall size of the laser sensor should be less than 100mmX60mm to reduce the space occupied, and it should also have high sensitivity and resolution. At the same time, the grinding wheel grinding positioning unit also includes modular programming to meet the reliability, stability and timeliness of the control system. Modular programming has the advantages of simple control method, good stable performance, high reliability, strong integration and convenient application.

[0043] The embodiment of the present invention further discloses a tobacco shredding system, including a positioning structure. Since the tobacco shredding system has the positioning structure, it has all the technical effects of the positioning structure, which will not be described in detail herein.

[0044] In order to further ensure the quality and stability of tobacco shreds, the tobacco shreds system provided in this implementation also includes an online quality monitoring and evaluation system, which performs real-time detection and evaluation feedback on the tobacco shreds production process. When abnormalities occur in various links and equipment operations during the production process, the staff can be promptly prompted to carry out maintenance, thereby ensuring the quality and stability of tobacco shreds.

[0045] In a specific embodiment, the chain speed, compressed air pressure, knife door height, knife roller speed and wire cutting width are monitored in real time, and the monitored data are statistically analyzed and fitted to establish a wire quality monitoring and evaluation system, so that the detection results are presented in data form, the wire cutting quality is monitored more intuitively and clearly, and the wire cutting quality process indicators and equipment operation status are monitored online, so that each detected item operates accurately within the set parameter range.

[0046] The line quality monitoring and evaluation system provided in this embodiment collects data through online sampling, samples according to preset time to form multiple sampling groups, and finally takes the average value of each sampling group. In a specific embodiment, the preset sampling time can be set to 30S, and the number of sampling groups is set to 10 groups. For example, the speed value of the chain is collected every 30S, a total of 10 times, and then the average value of 10 groups is calculated. At the same time, a coefficient of variation index is established, and the data collected from the chain speed is evaluated by the coefficient of variation index. The 10 groups of data are fitted. If the coefficient of variation index is greater than 1, it is evaluated that the operation of the chain is abnormal, and timely feedback is given to the staff to overhaul the operation of the chain, so that the entire equipment can operate normally, and then the quality and qualified rate of tobacco shreds are guaranteed.

[0047] In addition, in the production process, different types of tobacco shreds need to be cut according to different requirements. The tobacco shredding system provided in this embodiment also forms an internal control standard, which includes a line quality monitoring and evaluation system, and the internal control standard is set with multiple types to correspond to the requirements of different types of tobacco shreds during production, forming an internal control standard corresponding to the production of a brand of tobacco shreds. In a specific embodiment, the production process is as follows: Figure 7 As shown, when producing tobacco of different brands, the internal control standard of the corresponding brand can be directly called to make the equipment perform shred production. Therefore, the internal control standard provided by this embodiment changes the adjustment of various parameters of equipment operation based on the work experience of the staff in the existing production process, thereby solving the problem that the shred quality of different people operating the same equipment based on work experience adjustment is different, and the stability of shred quality cannot be guaranteed, which greatly improves the operation stability of shred process equipment, thereby ensuring the stability of production quality.

[0048] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0049] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not refer to the singular, but also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. The elements defined by the sentence "includes a..." do not exclude the existence of other identical elements in the process, method, commodity or device that includes the elements.

[0050] In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0051] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0052] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A tobacco shredding system, characterized in that: Including positioning structure and online quality monitoring and evaluation system; The positioning structure comprises a grinding wheel positioning unit and a tool positioning unit. When the grinding wheel grinding positioning unit grinds the wire cutter (100) through the grinding wheel, the grinding wheel grinding positioning unit is used to monitor whether the grinding wheel reaches the grinding position, and when the grinding wheel does not reach the grinding position, the grinding wheel grinding positioning unit issues an alarm. The tool positioning unit comprises a lower knife door strip (200), a wire cutter positioning portion, an adjustment portion, and a locking portion. The lower knife door strip (200) is movably connected to the wire cutter positioning portion, and the lower knife door strip (200) is provided with a positioning groove (210) for the wire cutter to pass through. The lower knife door strip (200) is adjusted by the adjustment portion to reach a preset position so that the positioning groove (210) can position and calibrate the wire cutter after grinding. When the adjustment of the lower knife door strip (200) on the wire cutter positioning portion is completed, the lower knife door strip (200) is locked and fixed by the locking portion. The online quality monitoring and evaluation system is used to monitor the quality of tobacco shreds, and to monitor the chain speed, compressed air pressure, knife door height, knife roller speed and shred width in real time, and to fit the data to establish the online quality monitoring and evaluation system, wherein the online quality monitoring and evaluation system collects data by online sampling, and samples at a preset time to form multiple sampling groups, and finally the values ​​of each sampling group are averaged, the sampling preset time is set to 30S, the number of sampling groups is set to 10 groups, the chain speed is collected once every 30S, a total of 10 times, and then the average value of the 10 groups is calculated, and a coefficient of variation index is established at the same time, and the collected chain speed data is evaluated by the coefficient of variation index, and the 10 groups of data are fitted. If the coefficient of variation index is greater than 1, it is evaluated that the operation of the chain is abnormal, and timely feedback is given to the staff to inspect the operation of the chain; Among them, the lower knife gate strip is provided with multiple positioning grooves at intervals along its extension direction. After the position adjustment of the lower knife gate strip is completed, the wire cutter installed on the knife roller body rotates with the knife roller body. If the position accuracy of the wire cutter on the knife roller body after grinding reaches the set standard, the various protrusions on the wire cutter can pass through the positioning grooves corresponding to the lower knife gate strip normally. When the position accuracy of the wire cutter on the knife roller body does not reach the set standard, the wire cutter cannot pass through the lower knife gate strip. Then, the position accuracy of the wire cutter is detected by the tool positioning unit to ensure that the wire cutter has good installation accuracy during the wire cutting process. Through the tool positioning unit and the grinding wheel grinding positioning unit, the accuracy of the wire cutter installation position and the grinding wheel movement position is significantly improved, which reduces the occurrence of the problem of raw cigarette running, and then ensures the stability of wire cutting and cutting width.

2. The tobacco cutting system according to claim 1, characterized in that: The slitting knife positioning part comprises a positioning plate (300), and the locking part comprises a locking screw (400) and a locking nut (410); the positioning plate (300) is provided with a first waist-shaped hole (310); the locking screw (400) is connected to the lower knife door strip (200) via the first waist-shaped hole (310); the locking nut (410) is connected to the locking screw (400) via a thread and abuts against the positioning plate (300); and the first waist-shaped hole (310) extends along the extension direction of the lower knife door strip (200).

3. The tobacco cutting system according to claim 2, characterized in that: The adjustment portion comprises an adjustment plate (320), an adjustment screw (500) and a limiting nut (510); the adjustment plates (320) are provided at both ends of the positioning plate (300); the adjustment screw (500) is connected to the lower knife door strip (200) via the adjustment plate (320); an adjustment gap is provided between the adjustment plate (320) and the lower knife door strip (200); and the limiting nut (510) is connected to the adjustment screw (500) via threads and abuts against the adjustment plate (320).

4. The tobacco cutting system according to claim 3, characterized in that: At least one of the two adjustment plates (320) is provided with a second waist-shaped hole (321), the positioning plate (300) is provided with a third waist-shaped hole (330) matching with the second waist-shaped hole (321), and the second waist-shaped hole (321) and the third waist-shaped hole (330) both extend along the extension direction of the lower knife door strip (200).

5. The tobacco cutting system according to claim 1, characterized in that: The grinding wheel grinding positioning unit includes a laser sensor to monitor the position of the grinding wheel through the displacement distance of the grinding wheel by the laser sensor, and the detection range of the laser sensor should be less than 60mm.

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