System and method for monitoring dynamic residual quantity of cigarette storage cabinet

Abstract

The invention discloses a tobacco storage cabinet dynamic residual quantity monitoring system and method. The system comprises a monitoring disc, a detection boss, a counting proximity switch and a monitoring controller. The monitoring disc and a driven roller chain crankset of the cigarette storage cabinet are coaxially arranged so as to rotate along with the driven roller chain crankset. N detection bosses are uniformly embedded in the outer disc of the monitoring disc, so that the cylindrical surface of the disc is divided into N equal parts; the counting proximity switch is arranged perpendicular to the outer tangent plane of the monitoring disc, so that the central axis of the counting proximity switch coincides with the central axis of the detection boss. The monitoring controller is in signal connection with the monitoring disc, and when the cigarette storage cabinet conveys auxiliary materials, the monitoring controller calculates the dynamic discharging amount and the remaining amount of the cigarette storage cabinet according to the number of the detection protrusions detected by the counting proximity switch. The method can reduce the calculation error of the dynamic residual quantity of the storage cabinet, and improves the accuracy of tobacco shred process production control.

Description

Technical Field

[0001] The present invention relates to the technical field of online material metering and statistics in cigarette shred production, and more specifically, to a dynamic residual material quantity monitoring system and method for a cigarette storage cabinet. Background Art

[0002] In the process of cigarette silk making, there are multiple groups of leaf premixing cabinets, leaf storage cabinets, stem storage cabinets, leaf storage cabinets, etc., which generally use reciprocating uniform material spreading to mix materials, balance moisture and sugar materials, etc., and the dynamic inventory information of materials in various storage cabinets also provides an important theoretical basis for the orderly production and planned feeding of the next process. At present, the dynamic remaining amount of the storage cabinet is calculated based on the encoder signal installed on the shaft end of the active roller of the bottom belt of the storage cabinet to measure the running distance of the bottom belt. Since the motor of the bottom belt of the storage cabinet is connected to the active roller through a chain, slippage and shaking often occur during intermittent operation, causing the encoder signal to be unstable, resulting in inaccurate calculation of the dynamic remaining amount of the storage cabinet and large errors. With the digital transformation of the tobacco industry and the technical requirements of factory intelligent manufacturing, automated production scheduling and uniform feeding of the next process, it is of great significance to accurately calculate and monitor the dynamic remaining amount of the tobacco storage cabinet. Summary of the invention

[0003] The present invention provides a system and method for monitoring the dynamic residual amount of a cigarette storage cabinet, which solves the problem of inaccurate calculation of the dynamic residual amount of a cigarette storage cabinet in the existing cigarette shred making process, can reduce the error of the calculation of the dynamic residual amount of the cigarette storage cabinet, and improve the accuracy of production control of the tobacco shred process.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A dynamic residual quantity monitoring system for a cigarette storage cabinet comprises: a monitoring disc, a detection boss, a counting proximity switch and a monitoring controller;

[0006] The monitoring disc is coaxially arranged with the driven roller chain tooth disc of the cigarette storage cabinet so as to rotate with the driven roller chain tooth disc;

[0007] The outer disc of the monitoring disc is evenly embedded with N detection bosses to divide the cylindrical surface of the disc into N equal parts;

[0008] The counting proximity switch is arranged perpendicular to the outer tangent surface of the monitoring disc, so that the central axis of the counting proximity switch coincides with the central axis of the detection boss;

[0009] The monitoring controller is connected to the monitoring disc signal. When the tobacco storage cabinet is conveying auxiliary materials, the monitoring controller calculates the linear distance of the monitoring disc's rotation based on the number of detections of the detection protrusion by the counting proximity switch, and converts the linear distance of the cabinet bottom belt's driven roller chain tooth disk's rotation, thereby calculating the dynamic material discharge amount and residual material amount of the tobacco storage cabinet using the distance the cabinet bottom belt travels.

[0010] Preferably, it also includes: triggering a counter;

[0011] The trigger counter is respectively connected to the counting proximity switch and the monitoring controller, and the trigger counter counts the detection quantity of the detection protrusion according to the counting proximity switch.

[0012] Preferably, it also includes: a bearing seat and a driven roller bearing head;

[0013] The bearing seat is arranged on the driven roller bearing head corresponding to the driven roller chain tooth disc, and one side surface of the monitoring disc is tightly attached to one end surface of the driven roller bearing head and is detachably connected by bolts.

[0014] Preferably, the detection protrusion adopts an external hexagonal bolt.

[0015] Preferably, the distance between two adjacent detection protrusions is greater than twice the diameter of the sensing probe of the counting proximity switch.

[0016] Preferably, the distance between the counting proximity switch and the detection protrusion is ≤4 mm.

[0017] Preferably, it further comprises: a first photoelectric tube, a second photoelectric tube and a third photoelectric tube;

[0018] The first photoelectric tube is arranged at the set cabinet full position of the storage cabinet, and is used to detect whether the material in the storage cabinet has reached the cabinet full position;

[0019] The second photoelectric tube is arranged at a set half cabinet position of the storage cabinet, and is used to detect whether the material in the storage cabinet has reached the half cabinet position;

[0020] The third photoelectric tube is arranged at a set empty cabinet position of the storage cabinet, and is used to detect whether the storage cabinet is empty;

[0021] The monitoring controller is respectively connected to the first phototube, the second phototube and the third phototube signals, and controls the remaining amount of material in the storage cabinet according to the detection signals of the first phototube, the second phototube and the third phototube.

[0022] Accordingly, the present invention also provides a method for monitoring the dynamic residual amount of a cigarette storage cabinet, using the above residual amount monitoring system, comprising:

[0023] Obtain the diameter d of the monitoring disc, the number of equal portions N of the monitoring disc, the material laying length L of the bottom belt of the storage cabinet, and the initial storage weight G0 of the storage cabinet;

[0024] Obtaining the count C of the trigger counter and the number of equal portions n corresponding to the rotation of the monitoring disc;

[0025] A mathematical model corresponding to the storage cabinet discharge volume and the residual material volume is established, and the storage cabinet discharge volume and the residual material volume are calculated according to the corresponding mathematical model.

[0026] Preferably, the step of establishing a mathematical model corresponding to the discharge amount and the residual amount of the storage cabinet includes:

[0027] According to the cabinet discharge formula: G 出 =G D *C=C* G0 / (L / (nπd / N)), calculate the cabinet discharge volume G 出 , G D is the weight of each unit of measurement;

[0028] According to the formula of the remaining material in the storage cabinet: G 余 =G0--G 出 =G0-- C* G0 / (L / (nπd / N)), calculate the remaining amount of the cabinet G 余 .

[0029] Preferably, it also includes:

[0030] When the cabinet enters the tail material mode, the cabinet bottom belt runs at a preset high speed, and the material feeding needle roller starts to operate at a preset forward 30 seconds and reverse 10 seconds program to ensure that the tail material flows out evenly and quickly. When the remaining material amount in the cabinet is displayed as zero, the counter C is triggered to stop counting. When the command to stop the cabinet discharge is issued, the counter is triggered to reset.

[0031] The present invention provides a system and method for monitoring the dynamic residual amount of a cigarette storage cabinet. The system utilizes a monitoring disc and a counting proximity switch installed on one end of a driven roller shaft at the rear of the cigarette storage cabinet. The counting proximity switch detects the number of detection protrusions embedded on the monitoring disc that pass by, calculates the linear distance of rotation of the monitoring disc, and converts the linear distance of rotation of a driven roller chain tooth disc of a bottom belt of the storage cabinet, that is, the distance traveled by the bottom belt of the storage cabinet. The dynamic discharge amount and residual amount of the cigarette storage cabinet are calculated using the distance traveled by the bottom belt of the storage cabinet, thereby solving the problem of inaccurate calculation of the dynamic residual amount of the storage cabinet in the existing cigarette shredding process, reducing the error in the calculation of the dynamic residual amount of the storage cabinet, and improving the accuracy of production control of the shredded tobacco process. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below.

[0033] Figure 1It is a schematic diagram of a dynamic residual quantity monitoring system for a cigarette storage cabinet provided by the present invention.

[0034] Figure 2 It is a schematic diagram of the assembly of a monitoring disc provided by an embodiment of the present invention.

[0035] Figure 3 It is a schematic diagram of the installation of the monitoring disc and the counting proximity switch provided in the embodiment of the present invention. DETAILED DESCRIPTION

[0036] In order to enable persons skilled in the art to better understand the solutions of the embodiments of the present invention, the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and implementation modes.

[0037] In view of the problem of inaccurate calculation of the dynamic remaining amount of a storage cabinet during the current cigarette shredding process, the present invention provides a dynamic remaining amount monitoring system and method for a cigarette storage cabinet, which solves the problem of inaccurate calculation of the dynamic remaining amount of a storage cabinet during the existing cigarette shredding process, can reduce the error in the calculation of the dynamic remaining amount of the storage cabinet, and improve the accuracy of production control of the tobacco shredded process.

[0038] like Figures 1 to 3 As shown, a dynamic residual quantity monitoring system for a cigarette storage cabinet comprises: a monitoring disc 4, a detection boss 15, a counting proximity switch 2 and a monitoring controller. The monitoring disc is coaxially arranged with the driven roller chain tooth disc 1 of the cigarette storage cabinet to rotate with the driven roller chain tooth disc 1. The outer disc of the monitoring disc 4 is evenly embedded with N detection bosses 15 to divide the cylindrical surface of the disc into N equal parts. The counting proximity switch 2 is arranged perpendicular to the outer tangent surface of the monitoring disc so that the central axis of the counting proximity switch 2 coincides with the central axis of the detection boss. The monitoring controller is connected to the monitoring disc signal. When the cigarette storage cabinet is conveying auxiliary materials, the monitoring controller calculates the linear distance of the rotation of the monitoring disc according to the number of detection bosses detected by the counting proximity switch, and converts the linear distance of the rotation of the driven roller chain tooth disc of the cabinet bottom belt, so as to calculate the dynamic discharge amount and residual amount of the cigarette storage cabinet using the distance traveled by the cabinet bottom belt.

[0039] Specifically, since the cabinet is equipped with a proximity switch 8 at the front terminal and a proximity switch 5 at the rear terminal, the distance that the material spreading trolley travels back and forth is constant, so the material laying length L of the cabinet bottom belt is also constant, and the empty length L0 at the cabinet end is constant. If the diameter of the monitoring disc is d, the vertical spacing R between the upper and lower belts of the cabinet bottom belt, that is, the diameter of the driven roller chain tooth disc D=R=nd. Each equal division of the monitoring disc, that is, the linear distance L of each counting unit of the counting proximity switch d =πd / N, then the distance traveled by the driven roller of the storage cabinet is L D=nπd / N, if the initial weight of the cabinet is G0, then the weight of each counting unit of the monitoring disc counting proximity switch = G 0 / (L / (nπd / N)). The system uses a monitoring disc installed on one end of the driven roller shaft at the rear of the tobacco storage cabinet and a counting proximity switch installed on the corresponding bearing seat to detect the rotation of the monitoring disc. Through the control program, a mathematical model is established. The counting proximity switch detects the number of bolts embedded on the monitoring disc passing through, calculates the linear distance of the monitoring disc rotation, and converts the linear distance of the driven roller chain tooth disc of the cabinet bottom belt rotation, that is, the distance the cabinet bottom belt travels. The dynamic discharge amount and residual amount of the tobacco storage cabinet are calculated using the distance the cabinet bottom belt travels. The system can reduce the error in the calculation of the dynamic residual amount of the storage cabinet and improve the accuracy of the production control of the tobacco process.

[0040] The system also includes: a trigger counter; the trigger counter is respectively connected to the counting proximity switch and the monitoring controller, and the trigger counter counts the detection quantity of the detection protrusion according to the counting proximity switch.

[0041] The system also includes: a bearing seat 17 and a driven roller bearing head 16; the bearing seat 17 is arranged on the driven roller bearing head 16 corresponding to the driven roller chain tooth plate 1, and one side of the monitoring disc is tightly attached to one end face of the driven roller bearing head and is detachably connected by bolts.

[0042] Furthermore, the detection protrusion adopts an external hexagonal bolt.

[0043] Furthermore, the distance between two adjacent detection protrusions is greater than twice the diameter of the sensing probe of the counting proximity switch.

[0044] Furthermore, the distance between the counting proximity switch and the detection protrusion is ≤4 mm.

[0045] Specifically, first install the monitoring disc on one end of the driven roller bearing head 16 at the rear of the cabinet: the monitoring disc 4 is a cylindrical disc made of nylon, 10mm thick, and with a diameter equal to 1 / n of the vertical spacing between the upper and lower belts of the cabinet bottom belt (that is, the diameter of the driven roller chain tooth disc). N detection bosses 15 are embedded perpendicular to the outer section of the cylindrical disc along the edge of the disc. The detection bosses use external hexagonal bolts to divide the cylindrical surface of the cylindrical disc into N equal parts. The spacing of each equal part must be ≥ 2 times the diameter of the counting proximity switch sensing probe to ensure accurate counting. A flat surface of the cylindrical disc is tightly attached to one end of the driven roller bearing head 16 and is fixed from the center of the circle with bolts 18, and the center line of the driven roller shaft coincides with the center line of the cylindrical disc, ensuring that the monitoring disc and the driven roller rotate synchronously and coaxially. Secondly, the counting proximity switch is installed on one side of the monitoring disk by using the counting proximity switch bracket 3: the counting proximity switch bracket 3 is composed of a long stainless steel plate 13 with a long hole at one end and a round hole at the other end and an L-shaped stainless steel plate 14 with long holes at both ends. First, the end of the long stainless steel plate 13 with the long hole is fixed with the bolts of the driven roller bearing seat, so that the long stainless steel plate 13 is perpendicular to the cylindrical disk; then, one end of the L-shaped stainless steel plate 14 is connected to the end of the long stainless steel plate with the round hole by bolts, so that the other side of the L-shaped stainless steel plate 14 is parallel to the outer section of the cylindrical disk; then, the counting proximity switch is fixed to the other end of the L-shaped stainless steel plate 14, so that the counting proximity switch is perpendicular to the outer section of the monitoring disk, and by adjusting the distance between the corresponding long holes of the two stainless steel plates, the central axis of the counting proximity switch coincides with the central axis of a close bolt on the cylindrical disk, and the counting proximity switch and the close bolt are at an effective close distance.

[0046] The system also includes: a first phototube 7, a second phototube 12 and a third phototube 11. The first phototube 7 is set at the set full cabinet position of the storage cabinet, and is used to detect whether the material in the storage cabinet has reached the full cabinet position. The second phototube 12 is set at the set half cabinet position of the storage cabinet, and is used to detect whether the material in the storage cabinet has reached the half cabinet position. The third phototube 11 is set at the set empty cabinet position of the storage cabinet, and is used to detect whether the storage cabinet is in an empty cabinet. The monitoring controller is respectively connected to the first phototube, the second phototube and the third phototube signals, and controls the remaining amount of material in the storage cabinet according to the detection signals of the first phototube, the second phototube and the third phototube.

[0047] In actual application, when the cabinet is started to be unloaded, the active roller chain tooth disc 10 and the driven roller chain tooth disc 1 rotate, driving the cabinet bottom belt 6 to rotate. Every time the counting proximity switch 2 detects the bolt on the monitoring plate, the counter is triggered to start counting, and a dynamic mathematical model of the cabinet discharge and residual material is established accordingly. The distance traveled by the cabinet bottom belt 6 is L1=nπd / N)*C. When L1=L0, the counter is triggered to reset and start counting again. At the same time, the dynamic mathematical model of the cabinet discharge and residual material is retrieved, and the cabinet discharge and residual material values ​​are uploaded to the IFIX operation desktop. The material begins to be discharged through the material-equalizing needle roller at the unloading end. When the cabinet is empty and the tail material detection photoelectric tube is not blocked, the unloading enters the tail material mode, the bottom belt runs at the preset high speed, and the material-diverting needle roller starts to run with the preset forward 30 seconds and reverse 10 seconds program to ensure that the tail material flows out evenly and quickly. When the residual material is zero, the counter is triggered to stop counting, and a stop unloading instruction can be issued, and the counter is reset at the same time.

[0048] It can be seen that the present invention provides a dynamic remaining material amount monitoring system for a tobacco storage cabinet, which utilizes a monitoring disc and a counting proximity switch installed on one end of a driven roller shaft at the rear of the tobacco storage cabinet. The counting proximity switch detects the number of detection protrusions embedded on the monitoring disc passing by, calculates the linear distance of the rotation of the monitoring disc, and converts the linear distance of the rotation of the driven roller chain tooth disc of the cabinet bottom belt, that is, the distance traveled by the cabinet bottom belt, so as to calculate the dynamic discharge amount and remaining material amount of the tobacco storage cabinet using the distance traveled by the cabinet bottom belt, thereby solving the problem of inaccurate calculation of the dynamic remaining material amount of the storage cabinet in the existing cigarette making process, reducing the error in the calculation of the dynamic remaining material amount of the storage cabinet, and improving the accuracy of production control of the tobacco production process.

[0049] Accordingly, the present invention also provides a method for monitoring the dynamic residual amount of a cigarette storage cabinet, using the above residual amount monitoring system, comprising:

[0050] S1: Obtain the diameter d of the monitoring disc, the number of equal parts N of the monitoring disc, the material laying length L of the bottom belt of the storage cabinet, and the initial storage weight G0 of the storage cabinet.

[0051] S2: Obtain the count C of the trigger counter and the number of equal portions n corresponding to the rotation of the monitoring disc.

[0052] S3: Establish a mathematical model corresponding to the storage cabinet discharge amount and the remaining amount, and calculate the storage cabinet discharge amount and the remaining amount according to the corresponding mathematical model.

[0053] Furthermore, the establishment of a mathematical model corresponding to the storage cabinet discharge amount and the residual amount includes:

[0054] According to the cabinet discharge formula: G 出 =G D *C=C* G0 / (L / (nπd / N)), calculate the cabinet discharge volume G 出 , GD is the weight of each unit of measurement;

[0055] According to the formula of the remaining material in the storage cabinet: G 余 =G0--G 出 =G0-- C* G0 / (L / (nπd / N)), calculate the remaining amount of the cabinet G 余 .

[0056] The method also includes: when the storage cabinet enters the tail material mode, the bottom belt of the storage cabinet runs at a preset high speed, and the material feeding needle roller starts to operate in a preset forward 30 seconds and reverse 10 seconds program to ensure that the tail material flows out evenly and quickly, and when the remaining material amount in the storage cabinet is displayed as zero, the counter C is triggered to stop counting, and when the command to stop the cabinet discharge is issued, the counter is triggered to reset.

[0057] It can be seen that the present invention provides a method for monitoring the dynamic remaining amount of a tobacco storage cabinet, which utilizes a monitoring disc and a counting proximity switch installed on one end of a driven roller shaft at the rear of the tobacco storage cabinet. The counting proximity switch detects the number of detection protrusions embedded on the monitoring disc that pass by, calculates the linear distance of the rotation of the monitoring disc, and converts the linear distance of the rotation of the driven roller chain tooth disc of the cabinet bottom belt, that is, the distance traveled by the cabinet bottom belt, thereby calculating the dynamic discharge amount and remaining amount of the tobacco storage cabinet using the distance traveled by the cabinet bottom belt, thereby solving the problem of inaccurate calculation of the dynamic remaining amount of the storage cabinet in the existing cigarette making process, reducing the error in the calculation of the dynamic remaining amount of the storage cabinet, and improving the accuracy of production control of the tobacco production process.

[0058] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings. The above is only a preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the drawings. Any changes made in accordance with the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and drawings, should be within the protection scope of the present invention.

Claims

1. A dynamic residual quantity monitoring system for a cigarette storage cabinet, characterized in that: include: Monitoring disc, detection boss, counting proximity switch and monitoring controller; The monitoring disc is coaxially arranged with the driven roller chain tooth disc of the cigarette storage cabinet so as to rotate with the driven roller chain tooth disc; The outer disc of the monitoring disc is evenly embedded with N detection bosses to divide the cylindrical surface of the disc into N equal parts; The counting proximity switch is arranged perpendicular to the outer tangent surface of the monitoring disc, so that the central axis of the counting proximity switch coincides with the central axis of the detection boss; The monitoring controller is connected to the monitoring disc signal. When the tobacco storage cabinet is conveying auxiliary materials, the monitoring controller calculates the linear distance of the monitoring disc's rotation based on the number of detections of the detection protrusion by the counting proximity switch, and converts the linear distance of the cabinet bottom belt's driven roller chain tooth disk's rotation, thereby calculating the dynamic material discharge amount and residual material amount of the tobacco storage cabinet using the distance the cabinet bottom belt travels.

2. The dynamic residual quantity monitoring system for a cigarette storage cabinet according to claim 1 is characterized in that: Also includes: Trigger counter; The trigger counter is respectively connected to the counting proximity switch and the monitoring controller, and the trigger counter counts the detection quantity of the detection protrusion according to the counting proximity switch.

3. The dynamic residual quantity monitoring system for a cigarette storage cabinet according to claim 2, characterized in that: Also includes: Bearing housing and driven roller bearing head; The bearing seat is arranged on the driven roller bearing head corresponding to the driven roller chain tooth disc, and one side surface of the monitoring disc is tightly attached to one end surface of the driven roller bearing head and is detachably connected by bolts.

4. The dynamic residual quantity monitoring system for a cigarette storage cabinet according to claim 3, characterized in that: The detection protrusion adopts an external hexagonal bolt.

5. The dynamic residual quantity monitoring system for a cigarette storage cabinet according to claim 4, characterized in that: The distance between two adjacent detection protrusions is greater than twice the diameter of the sensing probe of the counting proximity switch.

6. The dynamic residual quantity monitoring system for a cigarette storage cabinet according to claim 5, characterized in that: The distance between the counting proximity switch and the detection protrusion is ≤4mm.

7. The dynamic residual quantity monitoring system for a cigarette storage cabinet according to claim 6, characterized in that: Also includes: a first photoelectric tube, a second photoelectric tube and a third photoelectric tube; The first photoelectric tube is arranged at the set cabinet full position of the storage cabinet, and is used to detect whether the material in the storage cabinet has reached the cabinet full position; The second photoelectric tube is arranged at a set half cabinet position of the storage cabinet, and is used to detect whether the material in the storage cabinet has reached the half cabinet position; The third photoelectric tube is arranged at a set empty cabinet position of the storage cabinet, and is used to detect whether the storage cabinet is empty; The monitoring controller is respectively connected to the first phototube, the second phototube and the third phototube signals, and controls the remaining amount of material in the storage cabinet according to the detection signals of the first phototube, the second phototube and the third phototube.

8. A method for monitoring the dynamic residual amount of a cigarette storage cabinet, using the residual amount monitoring system according to any one of claims 1 to 7, characterized in that: include: Obtain the diameter d of the monitoring disc, the number of equal portions N of the monitoring disc, the material laying length L of the bottom belt of the storage cabinet, and the initial storage weight G0 of the storage cabinet; Obtaining the count C of the trigger counter and the number of equal portions n corresponding to the rotation of the monitoring disc; A mathematical model corresponding to the storage cabinet discharge volume and the residual material volume is established, and the storage cabinet discharge volume and the residual material volume are calculated according to the corresponding mathematical model.

9. The method for monitoring the dynamic residual amount of a cigarette storage cabinet according to claim 8, characterized in that: The method of establishing a mathematical model corresponding to the discharge amount and the residual amount of the storage cabinet includes: According to the cabinet discharge formula: G 出 =G D *C=C* G0 / (L / (nπd / N)), calculate the cabinet discharge volume G 出 , G D is the weight of each unit of measurement; According to the formula of the remaining material in the storage cabinet: G 余 =G0--G 出 =G0-- C* G0 / (L / (nπd / N)), calculate the remaining amount of storage cabinet G 余 .

10. The method for monitoring the dynamic residual amount of a cigarette storage cabinet according to claim 9, characterized in that: Also includes: When the cabinet enters the tail material mode, the cabinet bottom belt runs at a preset high speed, and the material feeding needle roller starts to operate at a preset forward 30 seconds and reverse 10 seconds program to ensure that the tail material flows out evenly and quickly. When the remaining material amount in the cabinet is displayed as zero, the counter C is triggered to stop counting. When the command to stop the cabinet discharge is issued, the counter is triggered to reset.

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