Novel stepped tension control system for auxiliary material equipment for cigarettes

Abstract

The invention discloses a novel stepped tension control system for tobacco auxiliary material equipment, belongs to the technical field of tobacco auxiliary material tension control, and solves the problem of unstable tension in the use process of existing tobacco auxiliary materials. The control system comprises a precise laser range finder used for detecting the outer rolling diameter of a raw material and a PLC (programmable logic controller) used for controlling the operation of the whole system, the precise laser range finder is arranged on a rack, a tension roller used for adjusting tension is arranged on the rack, an adjusting device used for adjusting the tension is arranged on one side of the tension roller, and the PLC is used for controlling the operation of the whole system. The adjusting device and the precise laser range finder are both electrically connected with a PLC, the PLC is electrically connected with an electric proportional valve used for controlling the air pressure supplied to the brake system, and an alarm device used for reminding workers of abnormity is arranged above the rack. According to the novel stepped tension control system for the auxiliary material equipment for the cigarettes, the swing amplitude of tension is reduced, so that stable output of the tension is realized, and the product quality is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of tension control of tobacco auxiliary materials, and in particular to a novel stepped tension control system for tobacco auxiliary material equipment. Background Art

[0002] Since most of the existing cigarette making machines in cigarette factories are high-speed machines, the quality requirements for tobacco auxiliary materials are getting higher and higher. The tension systems used on tobacco auxiliary materials production equipment are mostly composed of tension sensors that detect the tension size, feed back to the tension controller, and then change the tension size in real time to achieve tension adjustment and control. Since there is a certain time difference between the feedback signal, the receiving signal and the adjustment of the tension, the tension swing is large, and the maximum change value can reach ±10 kg. This situation is not conducive to the stability of the equipment and products, and there is a quality risk of loose core and loose disc. In addition, the air pressure of the brake system has been at a constant value, resulting in unstable tension after the outer diameter of the raw material roll becomes smaller, resulting in uneven quality of the products produced and a high scrap rate of the products. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a new type of stepped tension control system for tobacco auxiliary material equipment in view of the above-mentioned deficiencies in the prior art, which reduces the tension swing, thereby achieving stable tension output, effectively improving product quality, and having the characteristics of easy use and strong practicality.

[0004] The technical solution adopted by the present invention is: a new type of stepped tension control system for tobacco auxiliary material equipment, including a precision laser rangefinder for detecting the size of the outer roll diameter of the raw material and a PLC controller for controlling the operation of the entire system, the precision laser rangefinder is arranged on a frame, the frame is provided with a tension roller for adjusting the tension, one side of the tension roller is provided with an adjustment device for adjusting the tension, the adjustment device and the precision laser rangefinder are both electrically connected to the PLC controller, the PLC controller is electrically connected to an electrical proportional valve for controlling the size of the air pressure supplied to the brake system, and an alarm device for reminding staff of abnormalities is provided above the frame.

[0005] As a further improvement, the regulating device includes a telescopic cylinder and a gas flow valve, the output end of the telescopic cylinder is connected to the tension roller, the input end of the telescopic cylinder is connected to the gas flow valve, and the gas flow valve is electrically connected to the PLC controller.

[0006] Furthermore, a touch screen is also included, in which a touch screen module is provided, and the touch screen module is electrically connected to the PLC controller.

[0007] Furthermore, the PLC controller is electrically connected to a communication module.

[0008] Furthermore, it also includes a motor for driving the winding steel roller to rotate, and a time relay is provided on the control circuit of the motor.

[0009] Furthermore, the alarm device includes an alarm and a support frame, the support frame is installed on the frame, the alarm is installed on the support frame, and the alarm is electrically connected to the PLC controller.

[0010] Furthermore, a tension sensor is provided below the tension roller, and the tension sensor is electrically connected to the PLC controller.

[0011] Beneficial Effects

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. By setting the gas flow valve and using the PLC controller to control the extension of the gas telescopic cylinder, the tension change is stable and controllable, ensuring that the tension is always stable within the range that meets the startup requirements and improving product quality.

[0014] 2. By setting up an electrical proportional valve and using the probe of a precision laser rangefinder to detect the outer diameter of the raw material, the air pressure output to the brake system is gradually reduced in steps as the outer diameter of the raw material is consumed during the startup process, and the output size is adjusted linearly to achieve the appropriate tension and improve product quality.

[0015] 3. By setting up an alarm device, it has an alarm function. When the speed reaches the set alarm speed during the startup process, when the actual tension is less than the set alarm tension, the alarm will be immediately sounded and the low tension value and time will be automatically recorded, so that the equipment operator can deal with it in time. The alarm record is also convenient for us to analyze and judge the problem later. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the principle control of the present invention;

[0018] Figure 3 This is a comparison chart of the new and old tension changes.

[0019] Among them: 1-raw materials, 2-precision laser rangefinder, 3-frame, 4-tension roller, 5-tension sensor, 6-motor, 7-winding steel roller, 8-telescopic cylinder, 9-gas flow valve, 10-support frame, 11-alarm. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the specific embodiments in the accompanying drawings.

[0021] See also Figure 1-3 As shown, a novel step-type tension control system for tobacco auxiliary material equipment of the present invention comprises a precision laser rangefinder 2 for detecting the size of the outer roll diameter of the raw material 1 and a PLC controller for controlling the operation of the entire system. The precision laser rangefinder 2 is arranged on a frame 3, and a tension roller 4 for adjusting the tension is provided on the frame 3. An adjusting device for adjusting the tension is provided on one side of the tension roller 4. The adjusting device and the precision laser rangefinder 2 are electrically connected to the PLC controller. The PLC controller is electrically connected to an electrical proportional valve for controlling the size of the air pressure supplied to the brake system. An alarm device for reminding the staff of abnormalities is provided above the frame 3. Before starting the machine, the maximum roll diameter, the minimum roll diameter, the hollow core diameter, and the number of changes are set on the touch display screen according to the tension size ratio corresponding to the raw material roll diameter. The system will automatically generate the attenuation diameter and the attenuation ratio under the PLC controller. When working, the probe of the precision laser rangefinder 2 detects the size of the outer roll diameter of the raw material 1 and transmits the signal to the PLC controller. The PLC controller controls the gas flow rate of the gas flow valve 9 flowing into the telescopic cylinder 8 according to the continuous consumption of the outer roll diameter of the raw material 1 during the startup process, and pushes the tension roller 4 through the extension of the telescopic cylinder 8, thereby realizing real-time control of the tension and keeping the tension stable. At the same time, the PLC controller controls the electrical proportional valve to gradually decrease the air pressure output to the brake system in a step-by-step manner. The air pressure output to the brake system then gradually decreases in a step-by-step manner. Through the combination of the two controls, the tension in the entire production process is kept stable, thereby improving the quality of the products produced. During the startup process, after the speed reaches the set alarm speed, the tension sensor 5 can detect the actual tension. When the actual tension is less than the set alarm tension, the PLC controller immediately controls the alarm 11 to sound an alarm and automatically records the low tension value and time, so that the equipment operator can deal with it in time. The alarm record is also convenient for us to analyze and judge the problem later, thereby improving maintenance efficiency and reducing the occurrence of failures.

[0022] Specifically, the regulating device includes a telescopic cylinder 8 and a gas flow valve 9. The output end of the telescopic cylinder 8 is connected to the tension roller 4, and the input end of the telescopic cylinder 8 is connected to the gas flow valve 9. The gas flow valve is electrically connected to the PLC controller. The PLC controller controls the amount of gas flowing into the telescopic cylinder 8 through the gas flow valve 9 according to the continuous consumption of the outer roll diameter of the raw material 1 during the startup process. The tension roller 4 is pushed by the extension amount of the telescopic cylinder 8, thereby realizing real-time control of the tension and keeping the tension stable.

[0023] Preferably, a touch screen is also included, in which a touch screen module is provided, and the touch screen module is electrically connected to the PLC controller, so that parameters such as the maximum winding diameter, the minimum winding diameter, the hollow core diameter, the number of changes, etc. can be directly set on the touch screen, which is beneficial to the control of the entire device.

[0024] Furthermore, the PLC controller is electrically connected to a communication module, which can transmit and share data, thereby facilitating the staff to grasp and monitor the operating status.

[0025] Furthermore, it also includes a motor 6 for driving the winding steel roller 7 to rotate. A time relay is provided on the control circuit of the motor 6. The time relay has a delayed start function so that the machine starts working only after the tension is adjusted, thereby ensuring the consistency of product quality.

[0026] Furthermore, the alarm device includes an alarm 11 and a support frame 10. The support frame 10 is installed on the frame 3. The alarm 11 is installed on the support frame 10. The alarm 11 is electrically connected to the PLC controller. The tension sensor 5 can detect the actual tension. When the actual tension is less than the set alarm tension, the PLC controller immediately controls the alarm 11 to alarm and automatically records the low tension value and time for subsequent maintenance.

[0027] Furthermore, a tension sensor 5 is provided below the tension roller 4. The tension sensor 5 is electrically connected to the PLC controller. The tension sensor 5 can detect the actual tension in real time and transmit it to the PLC controller so as to facilitate control using data.

[0028] When a new type of stepped tension control system for tobacco auxiliary material equipment of this embodiment is in use, the probe of the precision laser rangefinder 2 detects the size of the outer roll diameter of the raw material 1 and transmits the signal to the PLC controller. The PLC controller controls the gas flow rate of the gas flow valve 9 to flow into the telescopic cylinder 8 according to the continuous consumption of the outer roll diameter of the raw material 1 during the startup process, and pushes the tension roller 4 through the extension amount of the telescopic cylinder 8, thereby realizing real-time control of the tension and keeping the tension stable. At the same time, the PLC controller controls the electrical proportional valve to gradually reduce the air pressure output to the brake system in a step-by-step manner. The air pressure output to the brake system then gradually decreases in a step-by-step manner. Through the combination of the control of the two, the tension in the entire production process is kept stable, thereby improving the quality of the products produced. After the speed reaches the set alarm speed during the startup process, the tension sensor 5 can detect the actual tension. When the actual tension is less than the set alarm tension, the PLC controller immediately controls the alarm 11 to alarm and automatically records the low tension value and time, so that the equipment operator can deal with it in time. The alarm record is also convenient for us to analyze and judge the problem later, thereby improving maintenance efficiency and reducing the occurrence of failures. The novel stepped tension control system of the tobacco auxiliary material equipment of the present invention reduces the swing amplitude of the tension, thereby realizing stable tension output, effectively improving product quality, and has the characteristics of being easy to use and highly practical.

[0029] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A new type of stepped tension control system for tobacco auxiliary material equipment, characterized in that: The invention comprises a precision laser rangefinder (2) for detecting the outer diameter of the raw material (1) and a PLC controller for controlling the operation of the entire system, wherein the precision laser rangefinder (2) is arranged on a frame (3), and a tension roller (4) for adjusting the tension is provided on the frame (3), and an adjusting device for adjusting the tension is provided on one side of the tension roller (4), and the adjusting device and the precision laser rangefinder (2) are both electrically connected to the PLC controller, and the PLC controller is electrically connected to an electrical proportional valve for controlling the air pressure supplied to the brake system, and an alarm device for reminding staff of abnormalities is provided above the frame (3).

2. According to claim 1, a new type of step-type tension control system for tobacco auxiliary material equipment is characterized in that: The regulating device comprises a telescopic cylinder (8) and a gas flow valve (9), the output end of the telescopic cylinder (8) is connected to the tension roller (4), the input end of the telescopic cylinder (8) is connected to the gas flow valve (9), and the gas flow valve is electrically connected to the PLC controller.

3. A new type of step-type tension control system for tobacco auxiliary material equipment according to claim 1, characterized in that: It also includes a touch screen, in which a touch screen module is arranged, and the touch screen module is electrically connected to the PLC controller.

4. A new type of step-type tension control system for tobacco auxiliary material equipment according to claim 1, characterized in that: The PLC controller is electrically connected to a communication module.

5. According to claim 1, a new type of step-type tension control system for tobacco auxiliary material equipment is characterized in that: It also includes a motor (6) for driving the winding steel roller shaft (7) to rotate, and a time relay is provided on the control circuit of the motor (6).

6. A novel step-type tension control system for tobacco auxiliary material equipment according to claim 1, characterized in that: The alarm device comprises an alarm (11) and a support frame (10), wherein the support frame (10) is mounted on a frame (3), the alarm (11) is mounted on the support frame (10), and the alarm (11) is electrically connected to a PLC controller.

7. A new type of step-type tension control system for tobacco auxiliary material equipment according to claim 1, characterized in that: A tension sensor (5) is provided below the tension roller (4), and the tension sensor (5) is electrically connected to the PLC controller.

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