Tobacco leaf and tobacco shred spice feeding method and equipment

Abstract

The invention relates to a tobacco leaf and tobacco shred spice feeding method and equipment. The method comprises the following steps: S1, collecting incoming tobacco leaf and tobacco shred data; s2, the incoming tobacco leaves and tobacco shreds pass through a feeding roller which is obliquely arranged and can rotate in a high-in and low-out mode, and feeding is conducted on the tobacco leaves and tobacco shreds through a feeding nozzle when the tobacco leaves and tobacco shreds pass through; determining data of spices needing to be added according to data of incoming tobacco leaves and cut tobaccos, and determining the optimal feeding distance between the incoming tobacco leaves and cut tobaccos and a nozzle when the incoming tobacco leaves and cut tobaccos are thrown in a feeding roller in combination with nozzle parameters and injection pressure; s3, calculating a change track of a material falling point in the charging roller according to the incoming tobacco leaf and tobacco shred data and the rotating speed of the roller; then calculating the motion trail of the feeding nozzle according to the optimal feeding distance from the trail to the nozzle; and S4, controlling the rotation angle of each shaft of the charging nozzle bracket capable of rotating in multiple shafts in real time so as to enable the charging nozzle to move according to the calculated movement track. The position of the feeding nozzle can be automatically adjusted along with material movement, the optimal feeding position is kept in the feeding process, and the purpose of uniform feeding is achieved.

Description

Technical Field

[0001] The present invention relates to the field of spice addition in tobacco processing, and particularly to a method and device for adding spice to tobacco leaves and cut tobacco. Background Art

[0002] In the production process of cigarettes, cut tobacco manufacturing is a very important link. Cut tobacco manufacturing is mainly responsible for producing qualified cut tobacco to be provided for the next process of rolling. The quality of cut tobacco processing not only affects the physical quality of the product, but also affects the internal quality of the product. In the cut tobacco manufacturing process, the processes of adding liquid to leaves and flavoring cut tobacco are the processes of spraying liquid on tobacco leaves and cut tobacco. This process is a modification for the defects existing in tobacco leaves or leaf group formulas. For example, adding an appropriate amount of sugar material to tobacco leaves can reduce the irritation of cigarettes, reduce miscellaneous odors and improve the smoking flavor. Another example is that spraying appropriate flavors and spices can cover up some inferior characteristics of cigarette smoke.

[0003] In the process of adding liquid and flavoring, the liquid is sprayed into the drum containing tobacco leaves and cut tobacco through a nozzle. The effect of adding liquid and flavoring directly determines the physical property changes, the uniformity of receiving materials and liquid, and the utilization efficiency of the liquid, etc. in the process of adding liquid and flavoring to tobacco products.

[0004] The current technology has the following problems:

[0005] Firstly, after the nozzles of the leaf adding machine and flavoring machine in the cut tobacco manufacturing process are installed on the drum, it is difficult to adjust the spraying angle in real time, and the nozzles will vibrate during operation, resulting in a change in their positions. Once this happens, the machine can only be stopped, the nozzles are reinstalled to the correct angle and then the operation can be carried out again, which affects the operation efficiency.

[0006] Secondly, the connection between the existing nozzle support and the base is a spherical hinge, which is prone to loosening, resulting in frequent need to adjust the nozzle angle; and the existing nozzle angle adjustment method completely relies on the maintenance worker to enter the drum and adjust by experience and visual inspection, without a scale reference, and there is a large error in the adjustment accuracy.

[0007] Furthermore, during the production process, the angle of the liquid adding nozzle is fixed, and it cannot be adjusted in real time according to the change of the optimal liquid adding and flavoring position caused by the change of the flow rate at the head and tail of the material, and different grades of materials have different flow rates and different liquid adding and flavoring ratios. Using the same liquid adding and flavoring angle causes problems such as uneven liquid addition, large adhesion amount on the drum wall, yellow-spotted tobacco, and low utilization rate of the liquid, which is not conducive to precise production.

[0008] Finally, when adjusting the liquid adding and flavoring nozzle, the maintenance worker needs to enter the drum, which poses a certain safety hazard. Summary of the Invention

[0009] To overcome the deficiencies of the prior art, the object of the present invention is to provide a method and equipment for adding flavor to tobacco leaves and cut tobacco. By calculating the most suitable feeding position according to the cut tobacco flow rate and the conveying path of the cut tobacco during feeding, and then realizing the real-time transformation of the feeding nozzle position through a multi-rotating shaft bracket, more uniform feeding is achieved, and the processing quality is improved. The specific content is as follows:

[0010] A method for adding flavor to tobacco leaves and cut tobacco, comprising the steps of:

[0011] S1, collecting data of the incoming tobacco leaves and cut tobacco;

[0012] S2, allowing the incoming tobacco leaves and cut tobacco to pass through a rotatable feeding drum arranged obliquely and adding flavor to it with a feeding nozzle during the passing process; the incoming tobacco leaves and cut tobacco are fed through the opening at the higher end of the feeding drum position and discharged from the lower end position; determining the flavor data to be added according to the data of the incoming tobacco leaves and cut tobacco, and determining the optimal feeding distance between the incoming tobacco leaves and cut tobacco and the nozzle during the spraying in the feeding drum according to the collected data of the incoming tobacco leaves and cut tobacco, flavor data, nozzle parameters, and ejector pressure; the flavor data includes the type of sprayed flavor, spraying atomization degree, spraying lift, single spraying amount, and spraying frequency.

[0013] S3, calculating the changing trajectory of the material falling point of the incoming tobacco leaves and cut tobacco in the feeding drum according to the data of the incoming tobacco leaves and cut tobacco and the drum rotation speed; then calculating the movement trajectory of the feeding nozzle according to the changing trajectory of the material falling point of the incoming tobacco leaves and cut tobacco in the feeding drum and the optimal feeding distance from the nozzle.

[0014] S4, controlling the position of the feeding nozzle bracket in real time according to the calculated movement trajectory of the feeding nozzle.

[0015] Further, the feeding nozzle bracket is connected by multiple axes, each axis can rotate independently, and the position of the feeding nozzle is adjusted by controlling the rotation angles of each axis.

[0016] Further, the data of the incoming tobacco leaves and cut tobacco includes the weight, size, moisture content, and production process flow rate of the incoming tobacco leaves and cut tobacco.

[0017] Further, when calculating the changing trajectory of the material falling point of the incoming tobacco leaves and cut tobacco in the feeding drum in step S3, determining the time required for the incoming tobacco leaves and cut tobacco to pass through the feeding drum according to the data of the incoming tobacco leaves and cut tobacco and the drum rotation speed, and regarding the changing trajectory of the material falling point when the incoming tobacco leaves and cut tobacco are rotated to the upper part by the feeding drum and then sprayed as a spiral line with the feeding drum as the axis; then establishing a rectangular coordinate system with the center of the cross-section where the feeding drum outlet is located as the origin, and calculating the falling point changing trajectory equation of the incoming tobacco leaves and cut tobacco in the feeding drum through the spiral line equation.

[0018] Furthermore, the feeding drum is an inclined and rotatable drum for conveying and spreading incoming tobacco leaves and cut tobacco.

[0019] The feeding nozzle support is installed at one end of the feeding drum for mounting the feeding nozzle.

[0020] The feeding nozzle support includes six connecting parts from the first to the sixth, and adjacent connecting parts can rotate relative to each other. The feeding nozzle support is installed at one end of the feeding drum through the first connecting part, and the feeding nozzle is installed on the sixth connecting part.

[0021] Furthermore, the first connecting part includes a base and a slewing bearing. The base is disc-shaped and fixedly installed on one end of the feeding drum. The outer ring of the slewing bearing is fixedly connected to the outer surface of the base. The second connecting part includes a turntable, a power mechanism, a first connecting rod, and a second connecting rod. The turntable is coaxial with the base. One side of the turntable is fixedly connected to the inner ring side surface of the slewing bearing, and the other side is fixedly connected to the first connecting rod and the second connecting rod. The power mechanism is fixedly installed on the side of the turntable connecting rod. The output shaft of the power mechanism is fixedly connected to the open end of the first open-type guide shaft support, and the first open-type guide shaft support is fixedly installed on the base. The power mechanism is connected to the base through the first open-type guide shaft support, and the turntable can rotate relative to the base.

[0022] Furthermore, the third connecting part includes a third connecting rod, a fourth connecting rod, and a power mechanism. The power mechanism is fixedly connected to the second connecting rod, and the fourth connecting rod is fixedly connected to the second open-type guide shaft support. The output shaft of the power mechanism is fixedly installed at the open end of the second open-type guide shaft support. The first connecting rod and the third connecting rod are connected by a shaft. The fourth connecting part includes a fifth connecting rod, a sixth connecting rod, and a power mechanism. The fourth connecting rod and the sixth connecting rod are connected by a shaft. The power mechanism is fixedly connected to the third connecting rod, and the fifth connecting rod is fixedly connected to the third open-type guide shaft support. The output shaft of the power mechanism is fixedly installed at the open end of the third open-type guide shaft support. The shaft connecting the first connecting rod and the third connecting rod is parallel to the shaft connecting the fourth connecting rod and the sixth connecting rod.

[0023] Further, the fifth connecting portion includes a connecting seat and a power mechanism; the connecting seat is in a "concave shape", one side of the connecting seat is connected to the fifth connecting rod through a shaft, and the other side is fixedly connected to a fourth open-type guide shaft support; the power mechanism is fixedly installed on the sixth connecting rod; the output shaft of the power mechanism is fixedly installed at the open end of the fourth open-type guide shaft support; the sixth connecting portion includes a mounting clip, a power mechanism and a nozzle mounting seat; the mounting clip is fixedly installed on the outer side of the bottom of the connecting seat for clamping the power mechanism; the fifth open-type guide shaft support is fixedly installed on the nozzle mounting seat, and its open end is fixedly connected to the output shaft of the power mechanism; the nozzle mounting seat is used for installing a feeding nozzle.

[0024] Further, the power mechanism is assembled by a motor brake, a motor and a motor reducer into an integral body.

[0025] Further, position sensors are installed on the open-type guide shaft supports.

[0026] The working principle of the present invention is as follows:

[0027] First, relevant data of the incoming tobacco leaves and cut tobacco are collected, including the variety, quality, moisture content, and production process flow information of the tobacco leaves.

[0028] Then, the incoming tobacco leaves and cut tobacco are passed through an inclined and rotatable feeding drum 1, and a feeding nozzle 3 is used to add materials to it during the passing process. The incoming tobacco leaves and cut tobacco are fed through the opening at the higher end of the feeding drum 1 and discharged from the lower end. The spice data to be added is determined according to the data of the incoming tobacco leaves and cut tobacco, and the optimal feeding distance between the incoming tobacco leaves and cut tobacco and the nozzle during the spraying in the feeding drum 1 is determined according to the collected data of the incoming tobacco leaves and cut tobacco, spice data, nozzle parameters, and ejector pressure; the spice data includes the type of the sprayed spice, the atomization degree of the spraying, the spraying lift, the single spraying amount, and the spraying frequency.

[0029] Next, the change trajectory of the material falling point of the tobacco leaves and cut tobacco is calculated. The change trajectory of the material falling point of the incoming tobacco leaves and cut tobacco in the feeding drum 1 is calculated according to the data of the incoming tobacco leaves and cut tobacco and the rotation speed of the drum.

[0030] Finally, according to the change trajectory of the material falling point of the incoming tobacco leaves and cut tobacco in the feeding drum 1 and the optimal feeding distance from the nozzle, the movement trajectory of the feeding nozzle 3 is calculated, and then the rotation angles of the five rotating shafts of the feeding nozzle support 2 are respectively controlled to adjust the position of the feeding nozzle 3, so that the feeding nozzle 3 is always in the optimal feeding position to ensure that the spice is evenly sprayed on the incoming tobacco leaves and cut tobacco at the appropriate position and time. By this method, precise feeding of the tobacco leaves and cut tobacco can be achieved, ensuring the uniformity of feeding.

[0031] The present invention has the following beneficial effects compared with the prior art:

[0032] (1) By controlling the rotation of five motors on the feeding nozzle support respectively, the position of the feeding nozzle on the feeding nozzle support is adjusted to realize the automatic adjustment of the angle and distance of the feeding nozzle following the material flow rate, and maintain the best feeding position during the feeding process, so as to achieve the purpose of uniform feeding and improving product quality.

[0033] (2) The structure of the feeding support is firmly connected and not easy to loosen. By accurately controlling and recording the rotation angles of each motor, remote precise and quantitative control is realized, avoiding the adjustment relying on manual experience and visual inspection and entering the drum for adjustment, and the adjustment is more precise and the adjustment method is safer.

[0034] (3) Statistically analyze the data of cut tobacco and cut stem of the tobacco leaves of different batches of incoming materials and the data of the spices to be added, calculate the matching nozzle movement trajectory, and after replacing the cut tobacco and cut stem of the incoming tobacco leaves, the nozzle support can automatically match the new incoming material data. Description of the Drawings

[0035] Figure 1 is the front sectional view of the use state of the feeding device of the present invention;

[0036] Figure 2 is the schematic sectional view of the three-dimensional structure of the feeding device of the present invention;

[0037] Figure 3 is the schematic three-dimensional structure diagram of the feeding nozzle support of the present invention;

[0038] Figure 4 is the schematic three-dimensional structure diagram of the feeding nozzle support from another angle of the present invention;

[0039] Figure 5 is the schematic diagram of the atomization of the falling liquid at different distances from the distance nozzle in the embodiment of the present invention;

[0040] Figure 6 is the schematic diagram of the establishment of the coordinate system in the embodiment of the present invention;

[0041] In the figure:

[0042] 1 - feeding drum, 2 - feeding nozzle support, 3 - feeding nozzle, 4 - change trajectory of the material falling point;

[0044] 211 - base, 212 - turntable bearing; 221 - turntable, 222 - first connecting rod, 223 - second connecting

[0045] rod, 224 - first open-type guide shaft support; 231 - third connecting rod, 232 - fourth connecting rod,

[0046] 233 - second open-type guide shaft support; 241 - fifth connecting rod, 242 - sixth connecting rod, 243

[0047] —The third open-type guide shaft support; 251—Connecting seat, 252—The fourth open-type guide shaft support; 261—Mounting clip, 262—Nozzle mounting seat, 263—The fifth open-type guide shaft support; 27—Power mechanism; 28—Position sensor. Detailed implementation manners

[0048] In order to make the technical means, creative features, and achievements of the present invention easy to understand, the following further describes the technical solutions of the invention in combination with one of the embodiments and detailed implementation manners of a method and device for adding spices to tobacco leaves and cut tobacco given by the present invention.

[0049] As Figure 1-6 shown, the specific embodiments given for the invention are as follows:

[0050] A method for adding spices to tobacco leaves and cut tobacco. First, relevant data of the incoming tobacco leaves and cut tobacco are collected, including the variety, quality, size, moisture content, and process flow information of the tobacco leaves.

[0051] Then, the incoming tobacco leaves and cut tobacco are conveyed into the feed port of the feeding drum 1. The feeding drum 1 is inclined and the feed port is higher than the discharge port. During use, the feeding drum 1 rotates at a certain speed to move the incoming tobacco leaves and cut tobacco in the feed port towards the discharge port, and the feeding nozzle 3 is used to add materials to it during the process.

[0052] Determine the spice data to be added according to the collected data of the incoming tobacco leaves and cut tobacco, and determine the optimal feeding distance between the incoming tobacco leaves and cut tobacco and the nozzle when the incoming tobacco leaves and cut tobacco are scattered in the feeding drum 1 according to the collected data of the incoming tobacco leaves and cut tobacco, spice data, nozzle parameters, and injection pressure; the spice data includes the type of sprayed spice, spraying atomization degree, spraying lift, single spraying amount, spraying frequency, etc., and determine the corresponding material falling point change trajectory when the incoming tobacco leaves and cut tobacco are scattered in the feeding drum 1 according to the collected data of the incoming tobacco leaves and cut tobacco and the drum rotation speed. Different tobacco leaf and cut tobacco data, spice data, nozzle parameters, and injection pressure have a great impact on the feeding distance. As Figure 5 shown in the figure is a schematic diagram of the influence of the feeding distance on the feeding uniformity. It can be seen from the figure that the atomized droplets are in a polymerized state in regions A, B, and C, and there are more atomized droplets, indicating that the atomized droplets have not started to break at this stage; the atomized droplets start to be evenly distributed throughout the space in region D; the number of atomized droplets in regions E, F, and G starts to gradually decrease, indicating that the droplets start to break and disperse in these three regions; the number of atomized droplets in region H gradually decreases, indicating that a large number of droplets have broken and are distributed throughout the space at this stage.

[0053] When calculating the changing trajectory 4 of the falling point of the cut tobacco of the incoming tobacco leaves in the feeding drum 1, the time required for the cut tobacco of the incoming tobacco leaves to pass through the feeding drum 1 is determined based on the data of the cut tobacco of the incoming tobacco leaves and the rotation speed of the feeding drum 1. The changing trajectory 4 of the falling point of the material when the cut tobacco of the incoming tobacco leaves is rotated to the upper part and then scattered after entering the feeding drum 1 is regarded as a spiral line with the feeding drum 1 as the axis; then, a space rectangular coordinate system is established with the center of the cross-section where the outlet position of the feeding drum 1 is located as the origin, and the position of the falling point of the cut tobacco of the incoming tobacco leaves in the feeding drum 1 under different process flows is calculated through the spiral equation.

[0054] When calculating, a space rectangular coordinate system is established with the center of the outlet of the feeding drum 1 as the origin and the axis of the drum as the X-axis in the internal space of the feeding drum 1. The falling point M of the cut tobacco of the incoming tobacco leaves in the feeding drum 1 rotates around the X-axis with an angular velocity ω before falling, ω being the rotation angular velocity of the drum, and at the same time moves in the positive direction parallel to the X-axis with a linear velocity v. Then, the motion graph formed by point M is regarded as a spiral line, and a spiral equation is established. The coordinates of point M under different conditions are calculated. Then, a space rectangular coordinate system is established with the fixed point of the feeding nozzle support 2 as the origin and the axis parallel to the feeding drum 1 as the X-axis. According to the coordinates of point M and the optimal feeding distance, the coordinates of the position where the feeding nozzle 3 should be in the optimal feeding position at this moment are determined.

[0055] Finally, the starting coordinates of the feeding nozzle 3 in the initial position are determined, and then the rotation angle of each motor when the feeding nozzle 3 on the feeding nozzle support 2 is in the initial position is detected by using the position sensor 28; then, compared with the coordinates of the optimal feeding position of the feeding nozzle 3, the rotation angle that each motor needs to rotate is calculated so that the feeding nozzle 3 reaches the optimal feeding position. Finally, the corresponding motors are respectively driven to rotate a certain angle to keep the feeding nozzle 3 always in the optimal feeding position to ensure that the flavor is sprayed on the cut tobacco of the incoming tobacco leaves at the appropriate position and time. Through this method, precise feeding of the cut tobacco can be achieved, ensuring the uniform distribution and spraying effect of the flavor.

[0056] The feeding equipment used in the above-mentioned method for flavoring cut tobacco of tobacco leaves includes a feeding drum 1, a feeding nozzle support 2, and a feeding nozzle 3.

[0057] The feeding drum 1 is installed obliquely and can rotate. The feeding drum 1 is used for transporting and scattering the cut tobacco of the incoming tobacco leaves.

[0058] The feeding nozzle support 2 is installed at one end of the feeding drum 1 and is used for mounting the feeding nozzle 3.

[0059] The feeding nozzle support 2 includes a total of six connecting parts from the first to the sixth. The six connecting parts are sequentially connected through the first to the fifth open-type guide shaft supports. A power mechanism 27 provides the power for relative rotation between adjacent two connecting parts, enabling it to rotate around the open-type guide shaft support. The power mechanism 27 is assembled by an electric motor brake, an electric motor, and an electric motor reducer into one body. The output shaft of the electric motor reducer is fixedly connected to the open end of the open-type guide shaft support. The feeding nozzle support 2 is installed at one end of the feeding roller 1 through the first connecting part, and the feeding nozzle 3 is installed on the sixth connecting part.

[0060] The first connecting portion includes a base 211 and a slewing bearing 212; the base 211 is disc-shaped, and the end face is fixedly installed at one end of the feeding drum 1; the outer ring of the slewing bearing 212 is fixedly connected to the outer surface of the base 211; the second connecting portion includes a turntable 221, a power mechanism 27, a first connecting rod 222 and a second connecting rod 223; the turntable 221 is coaxial with the base 211, one side of the turntable 221 is fixedly connected to the inner ring side surface of the slewing bearing 212, and the other side is fixedly connected to the first connecting rod 222 and the second connecting rod 223, and the first connecting rod 222 and the second connecting rod 223 are parallel to each other; the power mechanism 27 is fixedly installed on the connecting rod side of the turntable 221, the output shaft of the power mechanism 27 is fixedly connected and installed at the open end of the first open-ended guide shaft support 224, and the first open-ended guide shaft support 224 is fixedly installed on the base 211, and the power mechanism 27 is connected to the base 211 through the first open-ended guide shaft support 224. The turntable 221 can rotate relative to the base 211. The third connecting portion includes a third connecting rod 231, a fourth connecting rod 232 and the power mechanism 27; the power mechanism 27 is fixedly connected and installed on the second connecting rod 223, and the fourth connecting rod 232 is fixedly connected to the second open-ended guide shaft support 233; the output shaft of the power mechanism 27 is fixedly installed at the open end of the second open-ended guide shaft support 233. The first connecting rod 222 and the third connecting rod 231 are connected by a shaft; the fourth connecting portion includes a fifth connecting rod 241, a sixth connecting rod 242 and the power mechanism 27, the fourth connecting rod 232 and the sixth connecting rod 242 are connected by a shaft, the power mechanism 27 is fixedly connected and installed on the third connecting rod 231, and the fifth connecting rod 241 is fixedly connected to the third open-ended guide shaft support 243; the output shaft of the power mechanism 27 is fixedly installed at the open end of the third open-ended guide shaft support 243. The shaft connecting the first connecting rod 222 and the third connecting rod 231 is parallel to the shaft connecting the fourth connecting rod 232 and the sixth connecting rod 242. The fifth connecting portion includes a connecting seat 251 and the power mechanism 27; the connecting seat 251 is "concave-shaped", one side of the connecting seat 251 is connected to the fifth connecting rod 241 by a shaft, and the other side is fixedly connected to the fourth open-ended guide shaft support 252, and the power mechanism 27 is fixedly installed on the sixth connecting rod 242; the output shaft of the power mechanism 27 is fixedly installed at the open end of the fourth open-ended guide shaft support 252. The sixth connecting portion includes a mounting clip 261, the power mechanism 27 and a nozzle mounting seat 262; the mounting clip 261 is fixedly installed on the outer side of the bottom of the connecting seat 251 for clamping the power mechanism 27. The fifth open-ended guide shaft support 263 is fixedly installed on the nozzle mounting seat 262, and its open end is fixedly connected to the output shaft of the power mechanism 27; the nozzle mounting seat 262 is used for installing the feeding nozzle 3. An arc-shaped nozzle clip is provided on the nozzle mounting seat 262, and the feeding nozzle 3 is fixedly installed on the nozzle mounting seat 262 through the arc-shaped nozzle clip. Position sensors 28 are installed on the first to fifth open-ended guide shaft supports.

[0061] By rotating the motor on the power mechanism 27, the nozzle support can drive the nozzle to translate and rotate within the feeding drum 1, achieving multi-degree-of-freedom automatic adjustment of the nozzle. The motor brake can ensure that the feeding nozzle support 2 still maintains the position of the feeding nozzle 3 after power-off. The position sensor 28 can return the motor to zero for system calibration, enabling precise adjustment of the position of the feeding nozzle support 2. When the motor brake is not used, the system can be reset to check the origin after power-on and then run to resume operation at the absolute coordinates before power-off. It can also implement the limit function to prevent the control support from exceeding the rotation range. By programming the system to control the rotation of the motor on the power mechanism 27, the nozzle angle can be automatically adjusted according to the material flow rate. By precisely controlling and recording the rotation angles of each motor, remote precise and quantitative control can be achieved, avoiding manual experience and visual inspection for adjustment and the need to stop and enter the drum for adjustment.

[0062] When the system is operating, the material is first weighed by the belt scale, the flow rate is calculated, and the timing starts. Then, it takes a certain transportation time t from the belt scale to the outlet of the feeding drum 1. 延 First, a first spatial rectangular coordinate system is established with the center of the outlet of the feeding drum 1 as the origin and the axis of the feeding drum 1 as the X-axis. The spiral equation of the change trajectory of the material falling point is established, and the coordinate points of the material falling point of the incoming cut tobacco and tobacco leaves are as follows:

[0063] Y 烟1 = Rcos[ω(t - t 延 )]

[0064] Z 烟1 = Rsin[ω(t - t 延 )]

[0065] X 烟1 = v(t - t 延 )

[0066] In the formula, R is the radius of the feeding drum 1; ω is the rotational angular velocity of the feeding drum 1; v is the velocity of the material moving along the X-axis; t is the time elapsed after the material is on the belt scale, and t 延 is the delay time from the belt scale to the outlet of the flavoring and feeding cylinder.

[0067] When feeding, the flow rate of the material gradually increases until it reaches the set value and then reaches a stable state. When the flow rate is less than the set value:

[0068] Q 时 = k * t;

[0069]

[0070]

[0071]

[0072]

[0073] When the flow rate equals the set value, the position of the cut tobacco falling point in the cylinder no longer changes with time, and the throwing position of the cut tobacco in the barrel is fixed. Therefore, (X 烟 Y 烟 Z 烟 ) no longer changes. At this time:

[0074]

[0075]

[0076]

[0077] In the formula, Q 时 is the real-time flow rate; Q 定 is the set flow rate; k is the slope constant.

[0078] The feeding nozzle 2 is installed directly above the feeding port of the feeding cylinder 1. Then, taking the midpoint of the fixed connection position of the feeding nozzle bracket 2 as the origin, a second coordinate system is established. The X-axis is parallel to the axis of the feeding cylinder 1, and the coordinates in the first coordinate system are converted into virtual coordinates (X 虚 Y 虚 Z 虚 ). Then, when the flow rate is less than the set value:

[0079]

[0080]

[0081]

[0082] When the flow rate equals the set value:

[0083]

[0084]

[0085]

[0086] In the formula: h is the height difference between the two coordinate systems, and L is the length of the cylinder.

[0087] To ensure the best flavoring effect, the distance between the cut tobacco throwing point (X 虚 Y 虚 Z 虚 ) and the nozzle (X 喷 Y 喷 Z 喷 ) should be the optimal flavoring and feeding distance D. Then:

[0088] D 2=(X 喷 -X 虚 ) 2 +(Y 喷 -Y 虚 ) 2 +(Z 喷 -Z 虚 ) 2 。

[0089] After obtaining the optimal solution, within the allowable motion range of (X 喷 Y 喷 Z 喷 ), take the minimum distance from the nozzle position (X 喷n-1 Y 喷n-1 Z 喷n-1 ) at the previous moment, that is, only make the minimum adjustment to the nozzle position. According to the inverse solution of the robotic arm kinematic equation, find the rotation angles of the five motors. Finally, by controlling the rotation of the five motors on the feeding nozzle support respectively, adjust the position of the feeding nozzle on the feeding nozzle support, so as to realize the automatic adjustment of the feeding nozzle angle and distance following the material flow rate, keep the best feeding position during the feeding process, and achieve the purpose of uniform feeding and improving product quality.

[0090] It should be understood that the above specific embodiments of the present invention are only used for exemplary illustration or explanation of the principle of the present invention, and do not constitute a limitation to the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modification examples falling within the scope and boundary of the appended claims, or equivalent forms of such scope and boundary.

Claims

1. A method for adding tobacco leaf and shredded tobacco spices, characterized in that: Includes steps: S1, collect incoming tobacco leaf and shredded tobacco data; S2, allowing the incoming tobacco leaves and shreds to pass through an inclined and rotatable feeding roller (1) and using a feeding nozzle (3) to feed them during the passage; when the incoming tobacco leaves and shreds pass through, feeding is performed from the opening at the higher end of the feeding roller (1) and discharging is performed from the lower end; based on the data of the incoming tobacco leaves and shreds, the data of the spices to be added is determined, and based on the collected data of the incoming tobacco leaves and shreds, the spices data, the nozzle parameters, and the injection pressure, the optimal feeding distance between the incoming tobacco leaves and shreds and the nozzle when they are thrown in the feeding roller (1) is determined; the spices data includes the type of spices to be sprayed, the degree of spray atomization, the spraying head, the single spraying amount, and the spraying frequency. S3, calculating the material drop point change trajectory (4) of the incoming tobacco leaves and shreds in the feeding roller (1) based on the incoming tobacco leaves and shreds data and the roller rotation speed; then calculating the movement trajectory of the feeding nozzle (3) based on the material drop point change trajectory (4) of the incoming tobacco leaves and shreds in the feeding roller (1) and the optimal feeding distance from the nozzle; S4, controlling the position of the feeding nozzle bracket (2) in real time according to the calculated motion trajectory of the feeding nozzle (3).

2. The method for adding tobacco leaf and shredded tobacco spices as claimed in claim 1, characterized in that: The feeding nozzle bracket (2) is multi-axis connected, each axis can rotate independently, and the position of the feeding nozzle (3) is adjusted by controlling the rotation angle of each axis.

3. The method for adding tobacco leaf and shredded tobacco spices as claimed in claim 1, characterized in that: The incoming tobacco leaf and shredded tobacco data include the weight, size, moisture content and production process flow of the incoming tobacco leaf and shredded tobacco.

4. The method for adding tobacco leaf and shredded tobacco spices as claimed in claim 1, characterized in that: In step S3, when calculating the material drop point change trajectory (4) of the incoming tobacco leaves and shreds in the feeding roller (1), the time required for the incoming tobacco leaves and shreds to pass through the feeding roller (1) is determined by the incoming tobacco leaves and shreds data and the rotation speed of the feeding roller (1). The material drop point change trajectory (4) of the incoming tobacco leaves and shreds when they enter the feeding roller (1) and are brought to the top by the feeding roller (1) and then thrown is regarded as a spiral line with the feeding roller (1) as the axis; then a rectangular coordinate system is established with the center of the cross section at the outlet position of the feeding roller (1) as the origin, and the drop point change trajectory equation of the incoming tobacco leaves and shreds in the feeding roller (1) is calculated by the spiral line equation.

5. A tobacco leaf and tobacco spice adding device, characterized in that: include: The feeding roller (1) is a roller that is installed in an inclined manner and can rotate, and the feeding roller (1) is used to convey and scatter incoming tobacco leaves and shreds; A feeding nozzle bracket (2) is arranged and installed at one end of the feeding roller (1) and is used for mounting a feeding nozzle (3); The feeding nozzle bracket (2) comprises a total of six connecting parts, from the first to the sixth, and two adjacent connecting parts can rotate relative to each other; the feeding nozzle bracket (2) is arranged and installed on one end of the feeding roller (1) through the first connecting part, and the feeding nozzle (3) is arranged and installed on the sixth connecting part.

6. The tobacco leaf and shred tobacco flavoring feeding device according to claim 5, characterized in that: The first connecting part comprises a base (211) and a turntable bearing (212); the base (211) is in the shape of a disk, and its end face is fixedly arranged and installed on one end of the feeding roller (1); the outer ring of the turntable bearing (212) is fixedly connected to the outer surface of the base (211); the second connecting part comprises a turntable (221), a power mechanism (27), a first connecting rod (222) and a second connecting rod (223); the turntable (221) is coaxial with the base (211), one side of the turntable (221) is fixedly connected to the side surface of the inner ring of the turntable bearing (212), and the other side is fixedly connected to the second connecting rod (223); A connecting rod (222) and a second connecting rod (223) are fixedly connected, and the first connecting rod (222) and the second connecting rod (223) are parallel to each other; a power mechanism (27) is fixedly installed on the connecting rod side of a turntable (221), an output shaft of the power mechanism (27) is fixedly connected and installed on the open end of a first open-type guide shaft support (224), the first open-type guide shaft support (224) is fixedly installed on a base (211), the power mechanism (27) is connected to the base (211) via the first open-type guide shaft support (224), and the turntable (221) can rotate relative to the base (211).

7. The tobacco leaf and shred tobacco flavoring feeding device according to claim 6, characterized in that: The third connecting part comprises a third connecting rod (231), a fourth connecting rod (232) and a power mechanism (27); the power mechanism (27) is fixedly connected and installed on the second connecting rod (223), and the fourth connecting rod (232) is fixedly connected to the second open-type guide shaft support (233); the output shaft of the power mechanism (27) is fixedly installed on the open end of the second open-type guide shaft support (233); the first connecting rod (222) and the third connecting rod (231) are connected by an axis; the fourth connecting part comprises a fifth connecting rod (241), a sixth connecting rod (242) and the power mechanism (27); The power mechanism (27) is characterized in that the fourth connecting rod (232) and the sixth connecting rod (242) are connected via an axis, the power mechanism (27) is fixedly connected and installed on the third connecting rod (231), and the fifth connecting rod (241) is fixedly connected to the third open-type guide shaft support (243); the output shaft of the power mechanism (27) is fixedly installed on the open end of the third open-type guide shaft support (243); the axis connecting the first connecting rod (222) and the third connecting rod (231) is parallel to the axis connecting the fourth connecting rod (232) and the sixth connecting rod (242).

8. The tobacco leaf and shred tobacco flavoring feeding device according to claim 7, characterized in that: The fifth connecting part comprises a connecting seat (251) and a power mechanism (27); the connecting seat (251) is in a "concave" shape; one side of the connecting seat (251) is connected to the fifth connecting rod (241) via an axis, and the other side is fixedly connected to the fourth open-type guide shaft support (252); the power mechanism (27) is fixedly mounted on the sixth connecting rod (242); the output shaft of the power mechanism (27) is fixedly mounted on the open end of the fourth open-type guide shaft support (252); the sixth connecting part comprises a mounting clamp (261), a power mechanism (27) and a nozzle mounting seat (262); the mounting clamp (261) is fixedly mounted on the outer side of the bottom of the connecting seat (251) and is used to clamp the power mechanism (27); the fifth open-type guide shaft support (263) is fixedly mounted on the nozzle mounting seat (262), and its open end is fixedly connected to the output shaft of the power mechanism (27); the nozzle mounting seat (262) is used to mount a feeding nozzle (3).

9. A tobacco leaf and shredded tobacco flavoring feeding device according to any one of claims 6 to 8, characterized in that: The power mechanism (27) is assembled into one piece by a motor brake, a motor and a motor reducer.

10. A tobacco leaf and tobacco spice adding device according to any one of claims 5 to 8, characterized in that: Position sensors (28) are installed on the open guide shaft supports.

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