Foreign matter detection method for tobacco raw material conveyor

Abstract

The present invention discloses a foreign matter detection system for a tobacco raw material conveyor. The design concept of the present invention is to respectively set two groups of visual sensors at the head and tail of the conveyor in combination with image processing technology to achieve comprehensive detection of foreign matter contained in the feeding and discharging processes, thereby improving the accuracy of foreign matter detection. Specifically, a first support beam is connected between the two supporting legs at the tail end of the conveyor, a first visual sensor is installed on the first support beam, and a second visual sensor is fixedly connected to a pressing plate mechanism at the head of the conveyor for flattening and spreading the raw materials. The present invention has a dual image recognition function, which effectively solves the problem of low foreign matter detection accuracy of existing foreign matter detection devices, and at the same time greatly improves the convenience of foreign matter detection.

Description

Technical Field

[0001] The invention relates to the field of cigarette industry, and in particular to a foreign matter detection method for a tobacco raw material conveyor. Background Art

[0002] During the tobacco processing, a tobacco silk foreign matter detection device is needed to detect foreign matter in the tobacco. The currently available tobacco silk foreign matter detection device does not have a comprehensive image recognition function, resulting in low foreign matter detection accuracy and inconvenience in practical use. Summary of the invention

[0003] In view of the above, an object of the present invention is to provide a foreign matter detection method for a tobacco raw material conveyor to solve the aforementioned problems.

[0004] The technical solution adopted by the present invention is as follows:

[0005] The present invention provides a foreign body detection system for a tobacco raw material conveyor, comprising: a conveyor, wherein support legs are fixedly connected at four corners of the bottom of the conveyor, and a first support beam and a second support beam are fixedly connected between two support legs with a relatively close spacing, wherein the first support beam is close to the rear end of the conveyor;

[0006] A connecting plate is fixedly connected to one side of the first support beam, and at least two first visual sensors are fixedly connected to the connecting plate, and the shooting direction of the first visual sensor is consistent with the conveying direction of the conveyor;

[0007] An electrical box is fixedly connected to the side of the conveyor, and an operation button panel is fixedly connected to the front of the electrical box;

[0008] A first side plate and a second side plate are fixedly connected to both sides of the head of the conveyor, respectively; a support plate is fixedly connected to the top of the first side plate and the second side plate; an alarm and a cylinder are fixedly connected to the top of the support plate; an output end of the cylinder passes through the support plate and is fixedly connected to a pressing plate; a plurality of fixed columns for flattening and spreading tobacco raw materials are fixedly connected to the bottom of the pressing plate; at least two second visual sensors are fixedly connected to the pressing plate; and a shooting direction of the second visual sensor is consistent with a conveying direction of the conveyor;

[0009] The conveyor, the first visual sensor, the second visual sensor, the alarm, the operation button panel and the solenoid valve of the cylinder are respectively connected to the control device of the electrical box by electrical signals.

[0010] In at least one possible implementation manner, a support block is fixedly connected to the bottom of the support leg, and an anti-slip rubber pad is fixedly connected to the bottom of the support block.

[0011] In at least one possible implementation manner, the alarm includes sound and light alarms arranged at two ends of the top of the support plate.

[0012] In at least one possible implementation manner, a display screen connected to an electrical signal of a control device of the electrical box is fixedly connected to the front side of the first side panel.

[0013] In at least one possible implementation, a shell is fixedly connected to both sides of the bottom of the support plate, a return spring is fixedly connected to the top of the inner cavity of the shell, the bottom of the return spring is fixedly connected to a fixing plate, the bottom of the fixing plate is fixedly connected to a connecting column, one end of the connecting column passes through the bottom of the shell and is fixedly connected to an assembly plate, and the bottom of the assembly plate is fixedly connected to the top of the pressure plate.

[0014] In at least one possible implementation manner, limiting grooves are provided on both side walls of the inner cavity of the shell, the inner cavity of the limiting grooves is slidably connected to a limiting block, and the inner side of the limiting block is fixedly connected to the fixing plate.

[0015] The design concept of the present invention is to combine image processing technology to set two groups of visual sensors at the head and tail of the conveyor respectively, so as to realize comprehensive detection of foreign matter contained in the feeding and discharging process, thereby improving the accuracy of foreign matter detection. Specifically, a first support beam is connected between the two supporting legs at the tail end of the conveyor, a first visual sensor is installed on the first support beam, and a second visual sensor is fixedly connected to the pressing plate mechanism at the head of the conveyor for flattening and spreading the raw materials. The present invention has a dual image recognition function, which effectively solves the problem of low foreign matter detection accuracy of existing foreign matter detection devices, and at the same time greatly improves the convenience of foreign matter detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described below with reference to the accompanying drawings, in which:

[0017] Figure 1 A schematic diagram of a foreign body detection system for a tobacco raw material conveyor provided by an embodiment of the present invention;

[0018] Figure 2 A partial side view of a foreign body detection system for a tobacco raw material conveyor provided by an embodiment of the present invention;

[0019] Figure 3 A cross-sectional view of a housing provided in accordance with an embodiment of the present invention. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0021] The present invention provides an embodiment of a foreign body detection system for a tobacco raw material conveyor, which can be specifically as follows: Figure 1 and Figure 2 As shown, it comprises: a conveyor 1, support legs 2 are fixedly connected at the four corners of the bottom of the conveyor 1, and a first support beam 3 and a second support beam 4 are fixedly connected between two support legs 2 with a close spacing, and the first support beam 3 is close to the tail end (discharging end, discharging end) of the conveyor 1; a connecting plate 5 is fixedly connected to one side of the first support beam 3, and at least two first visual sensors 6 are fixedly connected to the connecting plate 5, and the shooting direction of the first visual sensor 6 is consistent with the conveying direction of the conveyor 1;

[0022] An electrical box 7 is fixedly connected to the side of the conveyor 1, and an operation button panel 30 is fixedly connected to the front of the electrical box 7;

[0023] A first side plate 14 and a second side plate 15 are fixedly connected to both sides of the head (head end, feeding end) of the conveyor 1, and a support plate 16 is fixedly connected to the top of the first side plate 14 and the second side plate 15. An alarm 17 and a cylinder 18 are fixedly connected to the top of the support plate 16. The output end of the cylinder 18 passes through the support plate 16 and is fixedly connected to a pressing plate 19. A plurality of fixed columns 21 for flattening and spreading tobacco raw materials are fixedly connected to the bottom of the pressing plate 19. The pressing plate 19 is fixedly connected to at least two second visual sensors 20. The shooting direction of the second visual sensor 20 is consistent with the conveying direction of the conveyor 1.

[0024] The conveyor 1 , the first visual sensor 6 , the second visual sensor 20 , the alarm 17 , the operation button panel 30 , and the solenoid valve of the cylinder 18 are respectively connected to the control device of the electrical box 7 .

[0025] Furthermore, a support block is fixedly connected to the bottom of the support leg 2, and an anti-slip rubber pad is fixedly connected to the bottom of the support block.

[0026] Furthermore, the alarm 17 includes sound and light alarms arranged at two ends of the top of the support plate 16 .

[0027] Furthermore, a display screen 22 connected to the electrical signal of the control device of the electrical box 7 is fixedly connected to the front side of the first side plate 14 .

[0028] Furthermore, if Figure 3 As shown, a housing 23 is fixedly connected to both sides of the bottom of the support plate 16, a return spring 24 is fixedly connected to the top of the inner cavity of the housing 23, a fixed plate 25 is fixedly connected to the bottom of the return spring 24, a connecting column 26 is fixedly connected to the bottom of the fixing plate 25, one end of the connecting column 26 passes through the bottom of the housing 23 and is fixedly connected to an assembly plate 27, and the bottom of the assembly plate 27 is fixedly connected to the top of the pressing plate 19. The return spring 24, the fixing plate 25, the connecting column 26 and the assembly plate 27 make it easy to extend and retract the pressing plate 19 during use, thereby ensuring the stable performance of the pressing plate 19 in movement, and solving the problem that the pressing plate 19 is not easy to extend and retract and retract during use.

[0029] Furthermore, limiting grooves 28 are provided on both side walls of the inner cavity of the housing 23, and the inner cavity of the limiting grooves 28 is slidably connected to limiting blocks 29, and the inner side of the limiting blocks 29 is fixedly connected to the fixing plate 25. The limiting grooves 28 and the limiting blocks 29 play a role in limiting the movement of the fixing plate 25 during use, which can prevent the fixing plate 25 from colliding with the inside of the housing 23, and solve the problem that the fixing plate 25 cannot be limited in movement during use.

[0030] Regarding the control device of the aforementioned electrical box 7, reference can be made to existing conveyor control hardware solutions, such as storage modules, processors, etc., and the present invention does not limit this. In addition, in order to realize image recognition detection, reference can also be made to existing image recognition technology in the field, such as configuring corresponding image acquisition, processing, recognition, analysis and other modules, and the present invention does not limit this.

[0031] In summary, the working principle can be referred to as follows: the foreign matter information to be detected can be pre-input into the control device in the electrical box by operating the key panel 30, the conveyor 1 is started to start conveying tobacco raw materials from the head, and then the cylinder 18 is started by operating the key panel 30, the cylinder 18 drives the pressing plate 19 to move downward, the pressing plate 19 moves downward through the assembly plate 27, the connecting column 26 and the fixing plate 25, the fixing plate 25 drives the limit block 29 to slide in the limit groove 28, and at the same time the fixing plate 25 moves downward through the reset spring 24, and the synchronous pressing plate 19 drives the fixing column 21 to move downward, so that The fixed column 21 flattens and spreads the tobacco raw materials on the head of the conveyor 1, and enables the second visual sensor 20 to perform a first round of visual detection on foreign matter in the tobacco raw materials. When the tobacco raw materials at the tail end of the conveyor 1 are discharged, the first visual sensor 6 is combined to perform a second round of visual detection on foreign matter in the tobacco raw materials. The tobacco raw material images detected by the first visual sensor 6 and the second visual sensor 20 only identify and detect the foreign matter contained therein. If foreign matter is found, the conveyor 1 can be controlled to stop running, and the sound and light alarm can be triggered to output an alarm, so that it can prompt the operator to remind him to clean it up.

[0032] In summary, the design concept of the present invention is to respectively set two groups of visual sensors at the head and tail of the conveyor in combination with image processing technology to achieve comprehensive detection of foreign matter contained in the feeding and discharging process, thereby improving the accuracy of foreign matter detection. Specifically, a first support beam is connected between the two supporting legs at the tail end of the conveyor, a first visual sensor is installed on the first support beam, and a second visual sensor is fixedly connected to the pressing plate mechanism at the head of the conveyor for flattening and spreading the raw materials. The present invention has a dual image recognition function, which effectively solves the problem of low foreign matter detection accuracy of existing foreign matter detection devices, and at the same time greatly improves the convenience of foreign matter detection.

[0033] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings, but the above is only a preferred embodiment of the present invention. It should be noted that the technical features involved in the above embodiments and their preferred methods can be reasonably combined and matched into a variety of equivalent schemes by those skilled in the art without departing from or changing the design ideas and technical effects of the present invention; therefore, the present invention is not limited to the scope of implementation shown in the drawings, and all 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 specification and drawings, should be within the protection scope of the present invention.

Claims

1. A foreign body detection method for a tobacco raw material conveyor, characterized in that: The foreign body detection system performs the following method: The foreign matter information to be detected is input into the control device in advance through the operation key panel; The conveyor is started to convey the tobacco raw material from the head, and the second visual sensor performs a first round of visual inspection of foreign matter in the tobacco raw material; When the tobacco raw materials at the tail end of the conveyor are discharged, a second round of visual inspection of foreign matter in the tobacco raw materials is performed in combination with the first visual sensor; If foreign matter is found, the conveyor will be controlled to stop running; Wherein, the foreign body detection system comprises a conveyor, wherein support legs are fixedly connected at the four corners of the bottom of the conveyor, and a first support beam and a second support beam are fixedly connected between two support legs with a relatively close spacing, wherein the first support beam is close to the tail end of the conveyor; A connecting plate is fixedly connected to one side of the first support beam, and at least two first visual sensors are fixedly connected to the connecting plate, and the shooting direction of the first visual sensor is consistent with the conveying direction of the conveyor; An electrical box is fixedly connected to the side of the conveyor, and an operation button panel is fixedly connected to the front of the electrical box; A first side plate and a second side plate are fixedly connected to both sides of the head of the conveyor, respectively; a support plate is fixedly connected to the top of the first side plate and the second side plate; an alarm and a cylinder are fixedly connected to the top of the support plate; an output end of the cylinder passes through the support plate and is fixedly connected to a pressing plate; a plurality of fixed columns for flattening and spreading tobacco raw materials are fixedly connected to the bottom of the pressing plate; at least two second visual sensors are fixedly connected to the pressing plate; and a shooting direction of the second visual sensor is consistent with a conveying direction of the conveyor; The conveyor, the first visual sensor, the second visual sensor, the alarm, the operation button panel and the solenoid valve of the cylinder are respectively connected to the control device of the electrical box by electrical signals.

2. The foreign body detection method for tobacco raw material conveyor according to claim 1, characterized in that: A support block is fixedly connected to the bottom of the support leg, and an anti-skid rubber pad is fixedly connected to the bottom of the support block.

3. The foreign body detection method for tobacco raw material conveyor according to claim 1, characterized in that: The alarm device comprises sound and light alarm devices arranged at two ends of the top of the support plate.

4. The foreign body detection method for tobacco raw material conveyor according to claim 1, characterized in that: A display screen connected to the electrical signal of the control device of the electrical box is fixedly connected to the front side of the first side plate.

5. The foreign matter detection method for a tobacco raw material conveyor according to any one of claims 1 to 4, characterized in that: A shell is fixedly connected to both sides of the bottom of the support plate, a return spring is fixedly connected to the top of the inner cavity of the shell, the bottom of the return spring is fixedly connected to a fixing plate, the bottom of the fixing plate is fixedly connected to a connecting column, one end of the connecting column passes through the bottom of the shell and is fixedly connected to an assembly plate, and the bottom of the assembly plate is fixedly connected to the top of the pressure plate.

6. The foreign body detection method for tobacco raw material conveyor according to claim 5, characterized in that: Limiting grooves are provided on both side walls of the inner cavity of the shell, the inner cavity of the limiting grooves is slidably connected to a limiting block, and the inner side of the limiting block is fixedly connected to the fixing plate.

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