Tobacco cutter flow auxiliary adjusting device for improving tobacco shreds

Abstract

According to the tobacco cutter flow auxiliary adjusting device used for improving tobacco shreds, the lower ends of installation supports are fixed to the tail of a feeding machine, materials at the output end of the tobacco cutter are conveyed into the feeding machine through a belt conveyor and a material guide groove, and the installation supports are located at the opposite end of the material conveying direction; a material detection device used for detecting flow buffer position information of downstream materials in the feeding machine is arranged on the mounting bracket, the material detection device is connected with a knife roll frequency converter in the tobacco cutter, and the change of the frequency of the knife roll frequency converter is controlled by a switching value signal output by the material detection device, so that the regulation and control of the rotating speed of a knife roll of the tobacco cutter are realized. According to the utility model, the regulation and control of the rotating speed of the knife roll of the tobacco cutter are realized, the material flow is stabilized, the frequent start-stop times of the tobacco cutter are reduced, the start-stop times of the tobacco cutter and the cut-off and cut-off problems can be well reduced, the uniformity of tobacco shreds is ensured, the filament rate is reduced, the quality of the tobacco shreds is improved, the effect is very obvious, and the expected purpose is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tobacco processing, and in particular relates to a flow auxiliary regulating device for a shredder for improving tobacco shreds. Background Art

[0002] In the process of tobacco cutting, the application of visual inspection technology can greatly improve production efficiency and product quality. For example, through machine vision, impurities, colors, shapes, textures and other characteristics in tobacco leaves can be accurately identified, so as to achieve the removal of foreign matter on the tobacco production line. This can effectively remove various foreign matter mixed in tobacco leaves, such as metal, plastic, paper, black rubber, cellophane, hemp rope, etc., and improve the purity of the material. At the same time, machine vision can also be used to detect process parameters such as width, moisture, and temperature of tobacco to ensure that the cut tobacco meets the process requirements of various grades of cigarettes. In addition, visual inspection technology can also be applied to the quality inspection of cigarettes after forming. By accurately measuring and judging the appearance, size, weight and other parameters of cigarettes, unqualified products can be discovered and removed in time, thereby improving the overall product quality.

[0003] From the perspective of cigarette processing, the average processing ratio of tobacco shreds of various brands in the entire shred process is 75%. The processing quality of the shreds directly affects the quality of the product, such as low filling value of tobacco shreds, excessive loss of tobacco leaves, empty cigarettes and many other problems. In the production process, since the rated flow of the SQ37 shredder does not match the rated flow of the subsequent shred drying equipment, the control of the shred flow depends on the personal experience of the operator. If the flow is too small, it cannot meet the flow demand of the shred drying machine; if the flow is too large, the shredder will start and stop frequently, making the width of the cut tobacco shreds lower than the standard requirement, resulting in more shreds below 0.5mm; because the shreds are cut too finely, the toughness of the shredded tobacco is greatly reduced, and a large amount of broken shreds and dust are formed in the following process, which are sucked away by the centralized dust removal system and become tobacco soil. At the same time, the consumption of tobacco leaves is increased, and the production cost increases. Therefore, improvements should be made to the above problems. Utility Model Content

[0004] The technical problem solved by the utility model is: to provide a flow auxiliary regulating device for a shredder for improving tobacco shreds, by arranging a mounting bracket equipped with a material detection device at the tail of a feeder, and connecting the material detection device to a knife roller frequency converter in the shredder, and controlling the change of the knife roller frequency converter frequency by a switch signal output by the material detection device, so as to realize the regulation of the knife roller speed of the shredder, stabilize the material flow, reduce the frequent start and stop times of the shredder, and effectively reduce the start and stop times of the shredder and the problems of flow and material interruption, ensure the uniformity of the shredded tobacco, reduce the shred rate, and improve the quality of the shredded tobacco, the effect is very obvious, and the expected purpose is achieved.

[0005] The technical solution adopted by the utility model: an auxiliary regulating device for a flow rate of a tobacco shredder for improving shredded tobacco, comprising a mounting bracket, the lower end of which is fixed to the tail of a feeder, the material at the output end of the shredder is transported to the feeder via a belt conveyor and a material guide trough, and the mounting bracket is located at the opposite end of the material transport direction, the mounting bracket is provided with a material detection device for detecting the flow buffer position information of the downstream material in the feeder, the material detection device is connected to a knife roller frequency converter in the shredder, and the switch signal output by the material detection device controls the change of the knife roller frequency converter frequency, thereby realizing the regulation of the rotation speed of the knife roller of the shredder.

[0006] Among them, the material detection device includes a YH type distance detector, the mounting bracket is an inverted L-shaped structure, the YH type distance detector is fixed on the bottom surface of the upper end of the mounting bracket, and the laser beam emitted by the YH type distance detector is set toward the material transportation direction of the feeder, and the output end of the YH type distance detector is connected to the wiring terminal of the knife roller inverter.

[0007] Furthermore, the feeder divides the downstream material buffer area into zone 1 with a material buffer amount of ~%, zone 2 with a material buffer amount of -%, zone 3 with a material buffer amount of -%, and zone 4 with a material buffer amount of more than %. The zone where the material on the feeder is located is determined by the YH type distance detector according to the distance at which the material is detected.

[0008] Furthermore, a diagonal support plate is fixed at the corner position of the upper end of the mounting bracket, and a video imaging system connected to the display on the control platform and used to collect image information of the material buffer position on the feeder is fixed on the outer wall of the diagonal support plate.

[0009] Furthermore, the video imaging system adopts a binocular camera.

[0010] Furthermore, a height-adjustable bracket is provided at the rear of the feeder, and a lamp for providing a stable light source to the material detection device is installed on the height-adjustable bracket.

[0011] Furthermore, the lamp is a surface light source lamp.

[0012] Furthermore, the height-adjustable bracket adopts a telescopic rod with a telescopic height-adjusting function.

[0013] The advantages of this utility model compared with the prior art:

[0014] 1. This technical solution provides a mounting bracket with a material detection device at the tail of the feeder, and the material detection device detects the downstream material flow buffer position information in the feeder, providing a basis for adjusting the rotation speed of the cutter roller;

[0015] 2. This technical solution connects the material detection device with the knife roller frequency converter in the wire cutter, and the switch signal output by the material detection device controls the change of the knife roller frequency converter frequency, realizes the regulation of the knife roller speed of the wire cutter, stabilizes the material flow, reduces the frequent start and stop times of the wire cutter, and can effectively reduce the start and stop times of the wire cutter and the problems of flow and material interruption;

[0016] 3. This technical solution sets up a video imaging system based on the material detection device to provide detection conditions for the reliability of flow regulation of the wire cutter and manual precision intervention, and solves the problem of uncontrollable speed of the wire cutter roller when the material detection device fails;

[0017] 4. This technical solution has a simple structure and reasonable design, which ensures uniformity of tobacco shreds, reduces the rate of thin shreds, and improves the quality of tobacco shreds. The effect is very obvious and achieves the expected purpose. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 The utility model discloses an installation structure of a material detection device and a video imaging system on an installation bracket. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiment of the present utility model Figure 1-2 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] It should be noted that, in this document, unless otherwise stated, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc., are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In this document, the terms "comprises", "comprising" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further limitations. The elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0023] A flow-assisting regulating device for improving tobacco shreds, such as Figure 1-2 As shown, it includes a mounting bracket 2, the lower end of which is fixed to the tail of the feeder 1, and the material at the output end of the shredder 4 is transported to the feeder 1 through the belt conveyor 5 and the guide trough 6, and the mounting bracket 2 is located at the opposite end of the material conveying direction. The mounting bracket 2 is provided with a material detection device for detecting the downstream material flow cache position information in the feeder 1, and the material detection device is connected to the knife roller inverter in the shredder 4, and the switch signal output by the material detection device controls the change of the knife roller inverter frequency, thereby realizing the regulation of the knife roller speed of the shredder 4.

[0024] In the above structure, a mounting bracket 2 equipped with a material detection device is provided at the tail of the feeder 1, and the material detection device detects the downstream material flow buffer position information in the feeder 1, so as to provide a basis for adjusting the rotation speed of the knife roller of the wire cutter 4; the material detection device is connected to the knife roller frequency converter in the wire cutter 4, and the switching signal output by the material detection device controls the change of the knife roller frequency converter frequency, so as to realize the regulation of the rotation speed of the knife roller of the wire cutter 4, stabilize the material flow, reduce the frequent start and stop times of the wire cutter 4, and effectively reduce the start and stop times of the wire cutter 4 and the problems of flow interruption and material interruption;

[0025] The specific structure of the material detection device is as follows: the material detection device includes a YH39 distance detector 7, the mounting bracket 2 is an inverted L-shaped structure, the YH39 distance detector 7 is fixed on the bottom surface of the upper end of the mounting bracket 2, and the laser beam emitted by the YH39 distance detector 7 is set toward the material transportation direction of the feeder 1, and the output end of the YH39 distance detector 7 is connected to the wiring terminal of the knife roller inverter.

[0026] The feeder 1 divides the downstream material buffer area into a first area with a material buffer volume of 0-30%, a second area with a material buffer volume of 30-65%, a third area with a material buffer volume of 65-80%, and a fourth area with a material buffer volume of more than 80%. The area where the material on the feeder 1 is located is determined by the YH39 distance detector 7 according to the distance of the material detected;

[0027] In order to overcome the problem that the flow of the wire cutter 4 cannot be adjusted due to the failure of the YH39 distance detector 7, a diagonal support plate 8 is fixed at the corner position of the upper end of the mounting bracket 2, and a video imaging system 9 connected to the display on the control platform and used to collect image information of the material cache position on the feeder 1 is fixed on the outer wall of the diagonal support plate 8; specifically, the video imaging system 9 adopts a binocular camera; on the one hand, it can overcome the problem that the flow of the wire cutter 4 cannot be adjusted due to the failure of the YH39 distance detector 7, and on the other hand, the accuracy of the area where the material is located by the YH39 distance detector 7 can be manually detected, thereby ensuring the accuracy of the flow adjustment of the wire cutter 4; combined with the color difference between the inner wall of the storage equipment and the material, the appropriate position area is measured by the video imaging system 9; detection conditions are provided for the reliability of the flow adjustment of the wire cutter and the manual precision intervention, and the disadvantage of the uncontrollable speed of the wire cutter roller when the material detection device fails is solved.

[0028] In order to provide a stable light environment for the video imaging system 9 during operation, a height-adjustable bracket 3 is provided at the rear of the feeder 1, and a lamp for providing a stable light source to the material detection device is installed on the height-adjustable bracket 3; specifically, the lamp adopts a surface light source lamp; specifically, the height-adjustable bracket 3 adopts a telescopic rod with a telescopic height adjustment function, and the height of the telescopic rod supports adjustment within 300 mm and adjustment within 400 mm in the width direction (adjusting the installation position).

[0029] Phase 1: When the YH39 distance detector 7 detects that the material buffer in the feeder 1 is 0%, the YH39 distance detector 7 sends the corresponding light-on control signal to the knife roller inverter, so that the knife roller speed of the shredder 4 is 280r / min, the knife roller inverter works at 48Hz, and the system estimates the output to be 5200kg / h;

[0030] The second stage: when the YH39 distance detector 7 detects that the material buffer in the feeder 1 is 30-65%, the YH39 distance detector 7 sends the corresponding light-on control signal to the knife roller inverter, so that the speed of the cutter roller is 260r / min, the operating frequency of the knife roller inverter is 40Hz, and the system estimates the output to be 4600kg / h;

[0031] The third stage: when the YH39 distance detector 7 detects that the material buffer in the feeder 1 is 70%, the YH39 distance detector 7 sends the corresponding light-on control signal to the knife roller inverter, so that the speed of the knife roller of the shredder is 240r / min, the operating frequency of the knife roller inverter is 25Hz, and the system estimates the output to be 4200kg / h;

[0032] The fourth stage: When the YH39 distance detector 7 detects that the material buffer in the feeder 1 is 80-90%, when this condition is met, the YH39 distance detector 7 sends the corresponding opening amount control signal to the knife roller inverter, so that the speed of the slicing machine knife roller is 190r / min, the operating frequency of the knife roller inverter is 15Hz, and the system estimates the output to be 3800kg / h.

[0033] By repeating this cycle, the shredder 4 can be kept in the operating stage during the production process, and the chain shutdown phenomenon will not occur, thereby changing the rotation speed of the knife stick of the shredder 4 and correcting the output to automatically track the flow of the feeder 1 in front of the shredder, that is, ensuring that the shredded tobacco in the feeder 1 can not only meet the continuous feeding of the shredder, but also will not cause the feeder 1 to be full of material, thereby greatly reducing the frequent start and stop times of the shredder 4.

[0034] The four switch signals in the YH39 distance detector 7 can be set by the detection distance of the material from the YH39 distance detector 7 when the corresponding four material buffer areas are in the material buffer area. When the YH39 distance detector 7 detects that the distance of the material is in zone one, zone two, zone three or zone four, the corresponding switch signal is sent to control the frequency of the knife roller inverter.

[0035] By adopting this structure, the operation mode of the motor of the blade stick of the wire cutter 4 is optimized and controlled, which greatly reduces the start and stop times of the wire cutter 4. The monthly average filament rate and qualified rate of the four brands before and after the transformation are sampled and statistically analyzed as follows:

[0036]

[0037] As can be seen from the table above, after using this solution, the annual average fine rate of the four brands produced by our factory has dropped from the original 3.21% to 0.59%, a decrease of 2.62%; the qualified rate of tobacco has increased from the original 98.25% to 99.59% after the transformation, an increase of 1.34%. Solving the problem of thin filaments produced by the shredder during the production process is the key to reducing production costs for enterprises. After the transformation, the fine rate has been significantly reduced, and the quality of tobacco has been significantly improved. The effect is very obvious and has achieved the expected purpose.

[0038] The technical solution has a simple structure and a reasonable design, ensures uniformity of shredded tobacco, reduces the rate of thin shreds, improves the quality of shredded tobacco, has a very obvious effect, and achieves the expected purpose.

[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0040] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A flow auxiliary regulating device for a tobacco shredder for improving tobacco shreds, characterized in that: The invention comprises a mounting bracket (2), the lower end of which is fixed to the rear of a feeder (1), the material at the output end of a shredder (4) is transported to the feeder (1) via a belt conveyor (5) and a material guide trough (6), and the mounting bracket (2) is located at the opposite end of the material transport direction, and a material detection device for detecting the flow buffer position information of the downstream material in the feeder (1) is provided on the mounting bracket (2), the material detection device is connected to a knife roller frequency converter in the shredder (4), and the switch signal output by the material detection device controls the change of the knife roller frequency converter frequency, thereby realizing the regulation of the knife roller speed of the shredder (4).

2. The flow auxiliary regulating device for improving tobacco shreds according to claim 1, characterized in that: The material detection device comprises a YH39 type distance detector (7), the mounting bracket (2) is in an inverted L-shaped structure, the YH39 type distance detector (7) is fixed on the bottom surface of the upper end of the mounting bracket (2), and the laser beam emitted by the YH39 type distance detector (7) is arranged toward the material transportation direction of the feeder (1), and the output end of the YH39 type distance detector (7) is connected to the wiring terminal of the knife roller inverter.

3. The flow auxiliary regulating device for improving tobacco shreds according to claim 2, characterized in that: The feeder (1) divides the downstream material buffer area into a first area with a material buffer amount of 0-30%, a second area with a material buffer amount of 30-65%, a third area with a material buffer amount of 65-80%, and a fourth area with a material buffer amount of more than 80%. The area where the material on the feeder (1) is located is determined by a YH39 distance detector (7) according to the distance of the material detected.

4. The flow auxiliary regulating device for improving tobacco shreds according to claim 3, characterized in that: A diagonal support plate (8) is fixed at the corner position of the upper end of the mounting bracket (2), and a video imaging system (9) connected to a display on the control platform and used to collect image information of the material buffer position on the feeder (1) is fixed on the outer wall of the diagonal support plate (8).

5. The flow auxiliary regulating device for improving tobacco shreds according to claim 4, characterized in that: The video imaging system (9) uses a binocular camera.

6. The flow auxiliary regulating device for improving tobacco shreds according to claim 1, 2, 3, 4 or 5, characterized in that: The feeder (1) is also provided with a height-adjustable bracket (3) at the rear, and a lamp for providing a stable light source to the material detection device is installed on the height-adjustable bracket (3).

7. The flow auxiliary regulating device for improving tobacco shreds according to claim 6, characterized in that: The lamp is a surface light source lamp.

8. The flow auxiliary regulating device for improving tobacco shreds according to claim 7, characterized in that: The height-adjustable bracket (3) adopts a telescopic rod with a telescopic height-adjusting function.

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