A working mode switching device and a switching method

Abstract

The application discloses a working mode switching device and method, and belongs to the tobacco impurity removing technical field.The switching device comprises a conveying assembly, a removing unit, a first switching assembly and a second switching assembly; a first discharge port and a second discharge port are sequentially arranged at the discharge end of the conveying assembly; the removing unit is installed at the discharge end of the conveying assembly and is used for changing the movement track of materials; the first switching assembly is installed at one side of the output section of the removing unit and is used for intermittently hindering the working of the removing unit; the second switching assembly is arranged at the discharge end of the conveying assembly and is used for intermittently limiting the materials from entering the second discharge port; and a controller is further included and electrically connected with the conveying assembly, the first switching assembly and the second switching assembly; when in use, the controller controls the first switching assembly or the second switching assembly to operate, simultaneously controls the conveying speed of the conveying assembly, and realizes the stable feeding of the materials to the first discharge port or the second discharge port, so that the uncertainty of the material flow direction is reduced.

Description

Technical Field

[0001] This application relates to the field of tobacco impurity removal technology, specifically to a working mode switching device and switching method. Background Technology

[0002] The operation of a tobacco cleaning machine largely depends on the stability of its industrial control computer and cleaning software. If the industrial control computer crashes or the cleaning software stops working, operators cannot detect and address the issue promptly, easily leading to numerous cases of incorrect or missed removal. Furthermore, when this occurs, the cleaning machine's mode cannot be switched via the cleaning software, causing chaos in material handling – a problem that those skilled in the art need to solve. Summary of the Invention

[0003] The purpose of this application is to provide a working mode switching device and switching method to solve the above-mentioned defects caused by the prior art.

[0004] To achieve the above objectives, this application employs the following technical solution: Firstly, this application discloses a working mode switching device, which includes... A transmission component; the discharge end of the transmission component is provided with a first discharge port and a second discharge port arranged in sequence; A rejection unit is installed at the discharge end of the transmission assembly to change the movement trajectory of the material. A first switching component is installed on one side of the output section of the rejection unit to intermittently hinder the operation of the rejection unit; The second switching component is arranged at the discharge end of the transmission component and is used to intermittently restrict the entry of material into the second discharge port.

[0005] The controller is electrically connected to the transmission component, the first switching component, and the second switching component; The controller is configured to control the operation of the first switching component or the second switching component, and to adjust the transmission speed of the transmission component to achieve the switching of the device's operating mode.

[0006] In a further embodiment of this application, the second switching component is arranged above the first discharge port, and the second switching component is intermittently connected to the side of the second discharge port near the first discharge port.

[0007] In a further embodiment of this application, the output paths of the first switching component and the second switching component are vertically arranged in space.

[0008] In a further embodiment of this application, the first switching component includes a first push rod, a first baffle, and a first guide rail; The first baffle is slidably mounted on the first guide rail, and the first guide rail and the first push rod are mounted on one side of the output section of the rejection unit. The first push rod is connected to the first baffle.

[0009] In a further embodiment of this application, the controller is configured to control the switching device to enable a first mode and a second mode; In the first mode, all materials are fed into the first discharge port; in the second mode, all materials are fed into the second discharge port. Further solutions to this application, The first mode includes the operation of the first push rod assembly, which hinders the operation of the rejection unit, and adjusts and increases the conveying speed of the transmission assembly to a first speed, so that the material is thrown into the second discharge port; The second mode includes the operation of the second push rod assembly, which is connected to the first discharge port and adjusts to reduce the conveying speed of the transmission assembly to a second speed, so that the material is thrown into the first discharge port.

[0010] In a further embodiment of this application, the rejection unit includes a rejection valve assembly, which is fixed above the first discharge port, with the medium output end of the rejection valve assembly facing the first discharge port.

[0011] Secondly, this application also discloses a switching method implemented by the above-mentioned working mode switching device, which includes: The monitoring equipment monitors the operation signal of the impurity removal software. If the impurity removal software stops running, the controller will activate the alarm. The controller controls the transmission speed of the transmission component and the first switching component to switch the corresponding working mode, allowing the material to enter the first discharge port or the second discharge port.

[0012] A further aspect of this application involves the controller controlling the transmission speed of the transmission component, the first switching component, or the first switching component to achieve switching of the corresponding working mode. Material entering the first discharge port or the second discharge port includes: If personnel are performing debris detection in subsequent processes, the controller switches to full-pass mode, and the material enters the second discharge port; If no personnel are available to perform debris detection in subsequent processes, the controller switches to full rejection mode, allowing the material to enter the first discharge port. The controller triggers the alarm; if no one confirms the alarm, the controller will switch to full rejection mode by default.

[0013] The beneficial effects of this application are as follows: During use, the controller controls the operation of the first or second switching component and simultaneously regulates the conveying speed of the transmission component to ensure stable material delivery to the first or second discharge port, achieving directional delivery and resolving material handling chaos caused by software malfunctions in the slag remover. This ensures the stability and real-time performance of the process and reduces the uncertainty of material flow direction. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the physical switching device for the working mode in the embodiments of this application; Figure 2 This is a schematic diagram of the structure of the first switching component in the embodiments of this application; Figure 3 This is a schematic diagram of the material movement trajectory in an embodiment of this application; Figure 4 This is a logical schematic diagram of the switching method in the embodiments of this application.

[0015] in: 1. Transmission component; 2. Rejection unit; 3. First switching component; 4. Second switching component; 5. Flow guide; 6. First discharge port; 7. Second discharge port; 31. First push rod; 32. First baffle; 33. First guide rail. Detailed Implementation

[0016] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. Example

[0017] like Figure 1As shown, this application discloses an embodiment of a working mode physical switching device for a tobacco impurity removal machine. The working mode switching device includes a transmission component 1, a rejection unit 2, a first switching component 3, and a second switching component 4. The discharge end of the transmission component 1 is provided with a first discharge port 6 and a second discharge port 7 arranged sequentially. The rejection unit 2 is installed at the discharge end of the transmission component 1 to change the movement trajectory of the material. The first switching component 3 is installed on one side of the output section of the rejection unit 2 to intermittently hinder the operation of the rejection unit 2. The second switching component 4 is arranged at the discharge end of the transmission component 1 to intermittently restrict the material from entering the second discharge port 7. The device also includes a controller electrically connected to the transmission component 1, the first switching component 3, and the second switching component 4. The controller is configured to control the operation of the first switching component 3 or the second switching component 4 and to adjust the transmission speed of the transmission component 1 to realize the switching of the device's working mode and complete the material collection at the first discharge port 6 or the second discharge port 7. The first discharge port 6 is a debris rejection discharge port; the second material port is a normal material discharge port.

[0018] During operation, if the impurity removal software in the impurity removal machine malfunctions or stops working, the controller controls the operation of the first switching component 3 or the second switching component 4. When the first switching component 3 or the second switching component 4 is activated, the conveying speed of the transmission component 1 is adaptively increased or decreased to switch the working mode. This corresponds to the material collection work at the first discharge port 6 or the second discharge port 7. Single-direction material collection can reduce the uncertainty of material flow direction.

[0019] As attached Figure 2 As shown, in this embodiment, the first switching component 3 includes a first push rod 31, a first baffle 32, and a first guide rail 33. The first baffle 32 is slidably mounted on the first guide rail 33. The first guide rail 33 and the first push rod 31 are mounted on one side of the output section of the rejection unit 2. The first push rod 31 is connected to the first baffle 32. Normally, the first push rod 31 is a pneumatic push rod. Two first push rods 31 and two first guide rails 33 are provided. The two first guide rails 33 are arranged side by side below the rejection unit 2. The first baffle 32 is slidably mounted between the two first guide rails 33. The two first push rods 31 are connected to the same side of the first baffle 32 and perform telescopic operations simultaneously. In addition, considering the ease of changing the material throwing route, the rejection unit 2 uses a rejection valve assembly. This rejection valve assembly is fixed above the first discharge port 6, and the airflow output end of the rejection valve assembly is set towards the first discharge port 6. When the rejection valve assembly is opened, the airflow it emits will push the moving material into the first discharge port 6, which can change the original path. The first push rod 31 extends out to block the airflow and increase the transmission speed of the transmission component. The material enters the second discharge port 7. A guide 5 is also fixed at the opening of the second discharge port 7 to guide the material.

[0020] The structure of the second switching component 4 is the same as that of the first switching component 3. In terms of arrangement, the output path of the first switching component 3 and the output path of the second switching component 4 are vertically arranged in space. The second switching component 4 is arranged above the first discharge port 6. The second switching component 4 is intermittently connected to the side of the second discharge port 7 near the first discharge port 6. Here, the first discharge port 6 and the second discharge port 7 are connected.

[0021] In this embodiment, the controller is configured to control the switching device to enable the first mode and the second mode; in the first mode, all materials are fed into the first discharge port 6; in the second mode, all materials are fed into the second discharge port 7. The first mode includes the operation of the first push rod 31 assembly, which hinders the operation of the rejection unit 2 and adjusts the conveying speed of the transmission assembly 1 to the first speed, and the material is thrown into the second discharge port 7. The second mode includes the operation of the second push rod assembly, which is connected to the first discharge port 6 and adjusts to reduce the conveying speed of the transmission assembly 1 to the second speed, so that the material is thrown into the first discharge port 6. Example

[0022] As attached Figure 4 As shown, this embodiment discloses a switching method, which is based on the physical switching device for working modes in the above embodiment 1. The switching method includes monitoring the operation signal of the impurity removal software by the monitoring equipment. If the impurity removal software stops running, the controller drives the alarm to sound. Depending on whether there are personnel performing subsequent processes to detect impurities, the corresponding working mode is switched through the controller control, and the material enters the first discharge port 6 or the second discharge port 7. The controller uses a PLC.

[0023] In some embodiments, a switching method is specifically designed as follows; 1. The PLC monitors the operation signals of the noise removal software through OPC (which establishes an interface standard for communication between industrial control system applications). When it detects that the software has stopped running, is running abnormally, or has lost communication, the PLC drives the alarm and outputs the corresponding alarm information through the HMI human-machine interface display screen. 2. After the alarm is triggered, the working mode switching device includes the following two working modes: all materials pass through mode and all materials are rejected mode; 3. When the operator reads the alarm information and arranges for personnel to perform foreign object detection in subsequent processes, the system can switch to the "all materials pass through" mode: The PLC drives the pneumatic valve island through the digital output module. The valve island supplies compressed air to the push-out chamber of the first push rod 31, causing the first push rod 31 to extend and push the first baffle 32 to move laterally along the first guide rail 33 for more than [a certain distance]. Figure 1At point A, the air ejected from the rejection valve assembly is blocked (when the industrial control computer or software crashes, the rejection valve assembly drive board has a high probability of malfunctioning, causing material to be mistakenly rejected). After the push rod reaches its position, a detection feedback signal is sent to the PLC to indicate that the cylinder has reached its position. At the same time, the inverter speed of the conveyor assembly is increased to the first speed, causing the high-speed belt to run at its maximum speed. This allows the material to continue moving forward based on inertia (parabola) without external force, and after passing through the guide 5, it falls into the normal material outlet. When exiting this mode, the first push rod 31 retracts, and the inverter speed returns to its default value. 4. When the operator reads the alarm information but cannot temporarily arrange for personnel to perform foreign object detection in subsequent processes, the system can switch to the material rejection mode: The PLC drives the pneumatic valve island through the digital output module. The pneumatic valve island supplies compressed air to the ejection chamber of the second push rod, causing the second push rod to extend and push the second baffle to move laterally along the guide rail for more than [a certain distance]. Figure 1 At point B, the passage to the second discharge port 7 is blocked. After the push rod is in place, a detection feedback signal is sent to the PLC, indicating that the cylinder has extended to the correct position. At the same time, the operating speed of the frequency converter in the conveying component is reduced to the second speed, so that the high-speed belt runs at a low speed, which lowers the parabolic trajectory of the material, reduces the throwing distance, reduces the probability of the material colliding with the second baffle, and reduces material breakage. Afterwards, the material at the second discharge port is manually inspected and classified. When it is necessary to exit this mode, the second push rod is retracted, and the frequency converter operating speed is restored to the default value.

[0024] When an alarm is triggered, but before the operator confirms it, the default setting is to reject all materials to avoid missing any items.

[0025] Combined with appendix Figure 3 Next, we will calculate the relevant operating parameters; After the material above the high-speed belt (conveyor assembly 1) reaches the end of the belt, it separates from the high-speed belt at point C, and then falls along a parabolic direction under the action of inertia and gravitational acceleration.

[0026] The boundary between the debris removal outlet and the normal material outlet is defined as point D. The heights of points C and D are Hc and Hd, respectively, and the horizontal distance between points C and D is L1. When the frequency converter speed is set to Fn, the motor speed n is: Equation 3-1 Where s is the motor slip; P is the number of pole pairs; In practical applications, equation 3-1 can be transformed into: Among them; Equation 3-2 Where n0 is the rated speed of the motor; and the actual running speed V of the high-speed belt can be calculated as shown in Equation 3-3; Equation 3-3; Among them, K1 is the reduction ratio of the motor gearbox; R1 is the radius of the high - altitude belt driving roller; D1 is the belt thickness; n is the motor speed.

[0027] Combining Equation 3 - 2 and Equation 3 - 3 gives Equation 3 - 4; The calculation method of the falling position of the material in the natural state (without the influence of the air - blowing valve) is as follows: ; Equation 3 - 5 ; Equation 3 - 6 t is the falling time, g is the acceleration due to gravity, Hc is the height from point C to the ground surface, Hd is the height from point D to the ground surface. From this, the forward distance Ln of the material within the falling time can be calculated as: ; Equation 3 - 7 Under ideal conditions, when Ln > L1, all the materials fall within the normal material discharge port range; when Ln < L1, all the materials fall within the foreign - matter removal discharge port range. Combining Equation 3 - 4 and Equation 3 - 6, it can be calculated that when Ln = L1, the critical speed Fn1 of the frequency converter is: ; Equation 3 - 8 The right - hand side of Equation 3 - 8 above are all known parameters, which can be set in the PLC according to the actual situation of the on - site equipment. Under ideal conditions, when Fn > When, all the materials fall within the normal material discharge port range; when Fn < When, all the materials fall within the foreign - matter removal discharge port range. Considering that there is a slight deviation between the actual running speed of the material and the belt speed, in order to improve the operation reliability of the device, in practical applications, set FH = 1.5Fn1, FL = 0.5Fn1, where FH is the speed of the speed reducer in the full - passing mode of the material; FL is the speed of the speed reducer in the full - removal mode of the material.

[0028] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

Claims

1. A working mode switching device, characterized in that, include: Transmission components; The discharge end of the transmission component is provided with a first discharge port and a second discharge port arranged in sequence; A rejection unit is installed at the discharge end of the transmission assembly to change the movement trajectory of the material. A first switching component is installed on one side of the output section of the rejection unit to intermittently hinder the operation of the rejection unit; The second switching component is arranged at the discharge end of the transmission component and is used to intermittently restrict the entry of material into the second discharge port; The controller is electrically connected to the transmission component, the first switching component, and the second switching component; The controller is configured to control the operation of the first switching component or the second switching component, and to adjust the transmission speed of the transmission component to switch the working mode of the device and collect material from the first discharge port or the second discharge port.

2. The working mode switching device according to claim 1, characterized in that, The second switching component is arranged above the first discharge port, and the second switching component is intermittently connected to the side of the second discharge port near the first discharge port.

3. The working mode switching device according to claim 1, characterized in that, The output paths of the first switching component and the second switching component are vertically arranged in space.

4. The working mode switching device according to claim 1, characterized in that, The first switching component includes a first push rod, a first baffle, and a first guide rail; The first baffle is slidably mounted on the first guide rail, and the first guide rail and the first push rod are mounted on one side of the output section of the rejection unit. The first push rod is connected to the first baffle.

5. The working mode switching device according to claim 1, characterized in that, The controller is configured to control the switching device to enable a first mode and a second mode; In the first mode, all materials are fed into the first discharge port; in the second mode, all materials are fed into the second discharge port.

6. The working mode switching device according to claim 5, characterized in that, The first mode includes the operation of the first push rod assembly, which hinders the operation of the rejection unit, and adjusts and increases the conveying speed of the transmission assembly to a first speed, so that the material is thrown into the second discharge port; The second mode includes the operation of the second push rod assembly, which is connected to the first discharge port and adjusts to reduce the conveying speed of the transmission assembly to a second speed, so that the material is thrown into the first discharge port.

7. The working mode switching device according to claim 1, characterized in that, The rejection unit includes a rejection valve assembly, which is fixed above the first discharge port, with the medium output end of the rejection valve assembly facing the first discharge port.

8. A switching method implemented by the working mode switching device according to any one of claims 1 to 7, characterized in that, include: The monitoring equipment monitors the operation signal of the impurity removal software. If the impurity removal software stops running, the controller will activate the alarm. The controller controls the transmission speed of the transmission component and the first switching component to switch the corresponding working mode, so that the material enters the first discharge port or the second discharge port.

9. The switching method according to claim 8, characterized in that, The controller controls the transmission speed of the transmission component and the first switching component to switch the corresponding working mode. Material entering the first or second discharge port includes: If personnel are performing debris detection in subsequent processes, the controller switches to full-pass mode, and the material enters the second discharge port; If no personnel are available to perform debris detection in subsequent processes, the controller switches to full rejection mode, and the material enters the first discharge port. The controller triggers the alarm; if no one confirms the alarm, the controller will switch to a full rejection mode by default.

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