Device for monitoring operation of steep angle belt of cigarette making machine

Abstract

The application discloses a steep angle belt running monitoring device of a cigarette making machine, which comprises a steep angle thread belt, wherein the steep angle thread belt is installed on a steep angle belt frame; a steep angle belt main driving wheel is arranged on the steep angle belt frame; a gear disc is installed on a rotating shaft of the steep angle belt main driving wheel; a counting sensor is installed on the steep angle belt frame; a monitoring support and a blowing support are arranged on the back of the steep angle belt frame; a tooth monitoring unit is arranged on the monitoring support; and a blowing unit is arranged on the blowing support; and the counting sensor, the tooth monitoring unit and the blowing unit are electrically connected with a PLC programmable controller.

Description

Technical Field

[0001] This invention relates to a detection device, and more particularly to a device for monitoring the operation of a cigarette rolling machine at steep angles. Background Technology

[0002] During normal production, tobacco shreds are fed into the feed hopper through the feeding pipe. The steep-angle conveyor belt then evenly transports the tobacco shreds from the hopper to the tobacco metering trough via the lifting action of the nail plates, and then to the next production process. In this process, the steep-angle conveyor belt functions to loosely and quantitatively and evenly transport the tobacco shreds, a function entirely achieved by the evenly distributed nail plates on the conveyor belt. In daily production, it has been found that when foreign objects are mixed into the tobacco shreds or when the steep-angle belt is abnormally worn, the nail teeth on the nail plates may break or bend. When this happens, because the steep-angle belt has no operational monitoring function, the equipment will not issue any alarm information, significantly reducing the stability and uniformity of tobacco conveying. This results in a large deviation in the final cigarette weight, creating potential product quality risks. Furthermore, bent or broken nail teeth can cause the steep-angle conveyor belt to jam, and in severe cases, completely jam the conveyor belt, creating a potential equipment hazard. Summary of the Invention

[0003] The purpose of this invention is to provide a steep-angle belt operation monitoring device for cigarette machines to solve the technical problems in the prior art. It can monitor the working status of the steep-angle belt nail plate in real time during normal production of cigarette machines. When the steep-angle belt nail plate is damaged by abnormal conditions such as tooth loss or tooth breakage, it will issue an alarm and stop the machine to avoid equipment damage.

[0004] This invention provides a steep-angle belt operation monitoring device for a cigarette machine, including a steep-angle lifting belt, which is mounted on a steep-angle belt frame. A steep-angle belt main drive wheel is provided on the steep-angle belt frame, and a gear disk is mounted on the shaft of the main drive wheel. A counting sensor is mounted on the steep-angle belt frame. A monitoring bracket and a purging bracket are provided on the back of the steep-angle belt frame. A nail tooth monitoring unit is provided on the monitoring bracket, and a purging unit is provided on the purging bracket. The counting sensor, the nail tooth monitoring unit, and the purging unit are all electrically connected to a PLC programmable controller.

[0005] In the aforementioned cigarette machine steep-angle belt operation monitoring device, preferably, the number of teeth on the gear disk is the same as the number of nail rows on the steep-angle lifting belt.

[0006] In the aforementioned cigarette machine steep-angle belt operation monitoring device, preferably, the number of nail tooth monitoring units on the monitoring bracket is the same as the number of nail rows in the same group. Each nail tooth monitoring unit includes multiple metal sensors, and the number of metal sensors in each nail tooth monitoring unit is equal to the number of nail teeth on the nail row. The metal sensors are perpendicular to the belt surface of the steep-angle lifting belt, and all the metal sensors are electrically connected to the PLC programmable controller.

[0007] In the aforementioned cigarette machine steep-angle belt operation monitoring device, preferably, the monitoring bracket is further provided with multiple foreign object monitoring units, the number of foreign object monitoring units being equal to the number of nail tooth monitoring units, the foreign object monitoring units adopting through-beam fiber optic sensors, the through-beam fiber optic sensors being arranged on both sides of the nail row, and the through-beam fiber optic sensors being electrically connected to the PLC programmable controller.

[0008] In the aforementioned cigarette machine steep-angle belt operation monitoring device, preferably, the number of the blowing units on the blowing bracket is the same as the number of the foreign object monitoring units. The blowing unit consists of multiple blowing nozzles. The blowing nozzles are connected to the air source through air pipes. The air pipes are equipped with solenoid valves, and the solenoid valves are electrically connected to the PLC programmable controller.

[0009] In the aforementioned cigarette machine steep-angle belt operation monitoring device, preferably, the angle of each of the blowing nozzles is adjustable.

[0010] Compared with existing technologies, this invention includes a steep-angle lifting belt, which is mounted on a steep-angle belt frame. The steep-angle belt frame has a main drive wheel, and a gear disk is mounted on the shaft of the main drive wheel. A counting sensor is mounted on the steep-angle belt frame. A monitoring bracket and a cleaning bracket are located on the back of the steep-angle belt frame. The monitoring bracket has a nail tooth monitoring unit, and the cleaning bracket has a cleaning unit. The counting sensor, nail tooth monitoring unit, and cleaning unit are all electrically connected to a PLC programmable controller. This invention can monitor the working status of the nail plate on the steep-angle lifting belt in real time during normal cigarette machine production through the counting sensor and nail tooth monitoring unit. When abnormal damage such as tooth loss or chipping occurs on the nail plate, an alarm stop signal is issued to prevent equipment damage, improve the automation level of the equipment, and increase the operating efficiency of the equipment. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the steep-angle wire lifting device;

[0012] Figure 2 This is the front view of the steep-angle ribbon;

[0013] Figure 3 This is a schematic diagram of the gear disk and the counting sensor;

[0014] Figure 4 This is a structural schematic diagram of the monitoring bracket and the spike tooth monitoring unit;

[0015] Figure 5 This is a side view of the monitoring bracket and the spike monitoring unit;

[0016] Figure 6 This is a schematic diagram of the monitoring device.

[0017] Explanation of reference numerals in the attached drawings: 1. Steep angle lifting belt; 2. Steep angle belt frame; 3. Rotating shaft; 4. Gear disk; 5. Counting sensor; 6. Monitoring bracket; 7. Purge bracket; 8. Pin array; 9. Metal sensor; 10. Through-beam fiber optic sensor; 11. Air nozzle. Detailed Implementation

[0018] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0019] Embodiments of the present invention: such as Figures 1-6 As shown, a steep-angle belt operation monitoring device for a cigarette machine includes a steep-angle lifting belt 1, which is mounted on a steep-angle belt frame 2. The steep-angle belt frame 2 is equipped with a steep-angle belt main drive wheel, and a gear disk 4 is mounted on the shaft 3 of the steep-angle belt main drive wheel. A counting sensor 5 is mounted on the steep-angle belt frame 2. A monitoring bracket 6 and a blowing bracket 7 are provided on the back of the steep-angle belt frame 2. A nail tooth monitoring unit is provided on the monitoring bracket 6, and a blowing unit is provided on the blowing bracket 7. The counting sensor 5, the nail tooth monitoring unit, and the blowing unit are all electrically connected to a PLC programmable controller.

[0020] The steep-angle main drive wheel drives the steep-angle lifting ribbon 1. The gear disk 4, in conjunction with the counting sensor 5, enables the PLC programmable controller to determine which group of nail rows 8 is currently being monitored. In this embodiment, the number of teeth on the gear disk 4 is the same as the number of nail rows 8 on the steep-angle lifting ribbon 1. For example, if the steep-angle lifting ribbon 1 has 100 nail rows 8, then the gear disk 4 has 100 teeth, and each tooth on the gear disk 4 corresponds to one nail row 8. Figure 2 As shown, the dashed box A contains a set of nail rows 8; the nail tooth monitoring unit is used to monitor whether the nail teeth on each nail row 8 are in a normal state, and the blowing unit is used to clean the nail teeth.

[0021] In one specific embodiment, the number of nail tooth monitoring units on the monitoring bracket 6 is the same as the number of nail rows 8 in the same group. Each nail tooth monitoring unit includes multiple metal sensors 9. The number of metal sensors 9 in each nail tooth monitoring unit is equal to the number of nail teeth on the nail row 8. The metal sensors 9 are perpendicular to the surface of the steep-angle lifting ribbon 1. All metal sensors 9 are electrically connected to a PLC programmable controller.

[0022] For example, such as Figure 2 As shown, a set of nail rows 8 contains 7 nail rows 8, so the monitoring bracket 6 is equipped with 7 nail tooth monitoring units, such as... Figure 4 As shown, each nail row 8 has 7 nail teeth, so each nail tooth monitoring unit is equipped with 7 metal sensors 9, which are arranged one-to-one with the nail teeth. The metal sensors 9 can monitor each nail tooth on the nail row 8, and can detect faults such as broken teeth or misalignment.

[0023] Furthermore, the monitoring bracket 6 is also equipped with multiple foreign object monitoring units, the number of which is equal to the number of nail tooth monitoring units. The foreign object monitoring units adopt through-beam fiber optic sensors 10, which are arranged on both sides of the nail row 8 and electrically connected to the PLC programmable controller.

[0024] The through-beam fiber optic sensor 10 can detect whether there are foreign objects stuck on the nail rack 8. If there are foreign objects stuck, they can be detected and removed by the purging unit.

[0025] Furthermore, the number of blowing units on the blowing bracket 7 is the same as the number of foreign object monitoring units. Each blowing unit consists of multiple air nozzles 11, which are connected to an air source via air pipes. A solenoid valve is installed on the air pipe and is electrically connected to a PLC programmable controller. The angle of each air nozzle 11 is adjustable.

[0026] The working principle of this invention is as follows: During operation, the gear disk 4 rotates synchronously with the rotating shaft 3. Each tooth on the gear disk 4 generates a pulse signal relative to the counting sensor 5. Simultaneously, a set of nail rows 8 moves to the monitoring bracket 6 for monitoring. After the steep-angle lifting ribbon 1 has finished feeding one round of tobacco, each nail row 8 is detected by the metal sensor 9. If the nail teeth on the nail row 8 are in a normal state, each nail tooth will be detected by the metal sensor 9, and the detection signal will be sent to the PLC programmable controller.

[0027] The nail tooth is detected by the metal sensor 9 for a fixed duration during operation. If a nail row 8 has missing teeth, one or more metal sensors 9 will not detect the nail tooth signal. If a nail tooth is deformed, the duration of the metal sensor 9's detection will exceed the range. Simultaneously with the detection of the nail row 8, the through-beam fiber optic sensor 10 is also triggered. After completing one round of tobacco conveying, the nail row 8 is in its return stroke. There should be no detectable material on the nail row 8. If the through-beam fiber optic sensor 10 is blocked, it indicates that there is material on the nail row 8. When there is stuck tobacco or foreign matter, the signal is sent to the PLC programmable controller. The PLC programmable controller executes the cleaning program, opens the solenoid valve on the air pipe, and causes the corresponding air nozzle 11 to spray high-pressure air. The airflow blows the nail rack 8 at high speed to remove foreign matter. At the same time, the position signal of the nail rack 8 where foreign matter exists is recorded by the PLC programmable controller. When the nail rack 8 cycles to the detection position again, the foreign matter signal is triggered again, indicating that the foreign matter is stuck on the nail teeth and cannot be blown away by high-pressure air. At this time, the PLC programmable controller issues a stop signal to remind the operator to intervene and check.

[0028] The above description, based on the embodiments shown in the figures, details the structure, features, and effects of the present invention. The above description is only a preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the figures. Any changes made in accordance with the concept of the present invention, or equivalent embodiments modified to have equivalent changes, that do not exceed the spirit covered by the specification and figures, should be within the protection scope of the present invention.

Claims

1. A monitoring device for the operation of a steep-angle belt in a cigarette rolling machine, comprising a steep-angle lifting belt (1), wherein the steep-angle lifting belt (1) is mounted on a steep-angle belt frame (2), characterized in that: The steep-angle belt frame (2) is provided with a steep-angle belt main drive wheel, and a gear disk (4) is installed on the shaft (3) of the steep-angle belt main drive wheel. A counting sensor (5) is installed on the steep-angle belt frame (2). A monitoring bracket (6) and a purging bracket (7) are provided on the back of the steep-angle belt frame (2). A nail tooth monitoring unit is provided on the monitoring bracket (6), and a purging unit is provided on the purging bracket (7). The counting sensor (5), the nail tooth monitoring unit, and the purging unit are all electrically connected to a PLC programmable controller. The number of teeth on the gear disk (4) is the same as the number of nail rows (8) on the steep-angle lifting ribbon (1); The number of nail tooth monitoring units on the monitoring bracket (6) is the same as the number of nail rows (8) in the same group. Each nail tooth monitoring unit includes multiple metal sensors (9). The number of metal sensors (9) in each nail tooth monitoring unit is equal to the number of nail teeth on the nail row (8). The metal sensors (9) are perpendicular to the surface of the steep-angle lifting ribbon (1). All the metal sensors (9) are electrically connected to the PLC programmable controller. The monitoring bracket (6) is also provided with multiple foreign object monitoring units. The number of foreign object monitoring units is equal to the number of nail tooth monitoring units. The foreign object monitoring units adopt through-beam fiber optic sensors (10). The through-beam fiber optic sensors (10) are arranged on both sides of the nail row (8). The through-beam fiber optic sensors (10) are electrically connected to the PLC programmable controller. The number of the blowing units on the blowing bracket (7) is the same as the number of the foreign object monitoring units. The blowing unit consists of multiple air nozzles (11). The air nozzles (11) are connected to the air source through air pipes. The air pipes are equipped with solenoid valves, which are electrically connected to the PLC programmable controller.

2. The cigarette machine steep-angle belt operation monitoring device according to claim 1, characterized in that: The angle of each of the air nozzles (11) is adjustable.

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