A device for automatically adjusting the air volume of a secondary air inlet of a cigarette making machine

Abstract

The utility model belongs to the cigarette production technical field, concretely relates to a kind of on-line automatic adjusting device of secondary winnowing air inlet ventilation quantity of cigarette machine, the device includes: porous baffle, is blocked in the air inlet place;Drive arrangement, the drive arrangement non-drive end is fixedly installed in the lower surface of the porous baffle;Wear plate, one end is fixedly connected in the drive end of the drive arrangement, the other end is attached to the hole face of the porous baffle;The drive arrangement drives the wear plate to make relative translation along the hole face of the porous baffle, adjusts area by covering / exposing hole to change the effective area of porous baffle aperture, to realize the on-line automatic adjustment of air inlet ventilation quantity.The utility model replaces artificial knob or valve preset by automation control completely, reduces the working intensity of operator, and reduces the equipment downtime or debugging frequency caused by improper human operation, and then reduces maintenance cost.

Description

Technical Field

[0001] This utility model belongs to the field of cigarette production technology, specifically relating to an online automatic adjustment device for the ventilation volume of the secondary air separation inlet of a cigarette machine. Background Technology

[0002] The three-stage air separation mechanism of a cigarette rolling machine is the core equipment for tobacco purification, used to remove impurities such as stems and wet clumps of tobacco. The first stage of air separation uses high-speed airflow to initially remove large stem particles; the second stage controls airflow and pressure by adjusting the opening of the air inlet damper on the side wall of the air separation box to further separate small and medium-sized stem particles; the third stage relies on valves or negative pressure regulating mechanisms at the end of the air path to precisely control the airflow, ensuring the final amount removed and the purity of the tobacco.

[0003] Although the three-stage air separation system can significantly improve the purity of tobacco, in traditional cigarette making machines, the opening of the air inlet damper of the second-stage air separation still needs to be preset by manual knob or valve. The adjustment accuracy is limited and the response is lagging. It cannot be adjusted in real time according to the dynamic changes in the characteristics of tobacco, resulting in large fluctuations in airflow and air pressure in the air separation box. It is difficult to maintain the airflow speed and air pressure accurately, which makes it easy to over-remove or under-remove tobacco during the separation of stems and sticks.

[0004] This application is made in order to solve at least one of the above problems. Utility Model Content

[0005] The purpose of this invention is to address the problem that the opening of the secondary stem-selecting air inlet in a three-stage air separation mechanism requires manual preset, has low adjustment accuracy and sluggish response, and therefore the air pressure inside the air separation box cannot be adjusted in real time according to the dynamic changes in the moisture content and particle size of the tobacco, resulting in unstable rejection efficiency and difficulty in ensuring the purity of the tobacco. This invention provides an online automatic adjustment device for the ventilation volume of the secondary air separation inlet of a cigarette machine, so as to realize online real-time intelligent adjustment of the air volume, ensuring the stability of the rejection effect of the secondary air separation and the continuous consistency of the tobacco quality.

[0006] The present invention adopts the following technical solution:

[0007] This utility model provides an online automatic adjustment device for the ventilation volume of the secondary air separation inlet of a cigarette machine. It is installed at the ventilation opening 1 on the side wall of the existing secondary air separation mechanism. The device includes: a perforated baffle 11, sealing the ventilation opening 1; a driving device 12, the non-driving end of which is fixedly installed on the lower surface of the perforated baffle 11; and a wear-resistant plate 13, one end of which is fixed to the driving end of the driving device 12, and the other end of which is attached to the perforated surface of the perforated baffle 11. The driving device 12 drives the wear-resistant plate 13 to move relatively along the perforated surface of the perforated baffle 11. By covering / exposing the holes, the area is adjusted to change the effective area of ​​the perforations in the perforated baffle 11, thereby achieving online automatic adjustment of the ventilation volume of the inlet.

[0008] Preferably, the lower surface of the porous baffle 11 is not provided with ventilation holes, while the upper surface is provided with an array of ventilation holes distributed in a circumferential or radial direction to adjust the effective ventilation area of ​​the air inlet.

[0009] Preferably, an anti-clogging mesh is provided on the inner side of the ventilation hole wall.

[0010] Preferably, the driving device 12 is a linear actuator or an electric push rod, and its stroke is matched with the range of variation of the aperture of the porous baffle 11.

[0011] Preferably, the device further includes a wind pressure sensor and an air volume sensor, the sensors collecting the wind pressure and air volume signals of the ventilation opening in real time and feeding them back to the controller to achieve automatic adjustment.

[0012] Preferably, the wind pressure sensor is located at the air inlet on the front side of the porous baffle 11 to detect the wind pressure before entering the baffle in real time; the air volume sensor is located in the non-ventilation hole area on the rear side of the porous baffle 11 to measure the air flow after passing through the baffle, so as to ensure that the pressure and flow signals collected by the sensor are not affected by the local turbulence in the pores.

[0013] Preferably, the device further includes a controller electrically connected to the drive device 12 and configured to receive signals from the wind pressure sensor and the air volume sensor or an external preset control signal, and to adjust the position of the wear-resistant plate 13 by controlling the stroke of the drive device 12; the controller dynamically adjusts the stroke of the drive device 12 based on the comparison result of at least one of the wind pressure signal and the air volume signal with the corresponding preset threshold, so that the ventilation volume approaches the target range.

[0014] Preferably, both the porous baffle 11 and the wear-resistant plate 13 are made of high-strength transparent material, allowing direct observation of the pore state through an external monitoring window or visual sensor, while also providing impact resistance and wear resistance. Specifically, the porous baffle and the wear-resistant plate can be made of wear-resistant quartz glass.

[0015] The main working process of this utility model is as follows: the controller loads the target wind pressure / air volume range and threshold, at which time the drive device places the wear-resistant plate in the initial position (preset opening area); then the wind pressure and air volume sensors continuously sample to obtain the current air inlet status; the controller compares the real-time value with the target value or threshold; the drive device pushes the wear-resistant plate to move horizontally, increasing or decreasing the opening area; the new position changes the air outlet ventilation volume, and the sensor samples again until the wind pressure / flow rate stabilizes within the target range.

[0016] The perforated area of ​​the multi-hole baffle is positively correlated with the air intake volume; the larger the opening, the greater the air volume. Based on the values ​​of the air pressure and air volume signals, the controller uses existing mature algorithms to quickly and smoothly adjust the position of the wear-resistant plate. Real-time online adjustment can cope with changes in tobacco characteristics (such as moisture content and particle size) or external environment, and automatically compensate for the air volume. In addition, the multi-hole baffle and wear-resistant plate are made of transparent material, which makes it easy to observe the pore status through external windows or visual sensors, and assists in remote detection and maintenance.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Relying on the synchronous sampling of wind pressure and air volume sensors and the algorithm of the controller, this device can automatically and continuously adjust the opening area of ​​the air inlet under different production conditions (changes in tobacco moisture content, particle size and external environment). This avoids the drawbacks of traditional manual preset response lag, greatly improves the system response speed and adjustment accuracy. By keeping the wind pressure and air volume in the secondary air separation box within the target range, this device ensures the uniform separation of small and medium-sized particles and stems, reduces fluctuations in over-removal and under-removal, and significantly improves stem removal efficiency and product consistency.

[0019] 2. This utility model completely replaces manual knobs or valve presets through automated control, reducing the workload of operators and the number of equipment downtimes or adjustments caused by improper human operation, thereby reducing maintenance costs.

[0020] 3. This utility model uses a porous baffle and wear-resistant plate made of transparent high-strength material, which allows the operator to directly observe the opening status through an external monitoring window. It enables remote fault diagnosis and status monitoring without disassembly, thus improving on-site management efficiency.

[0021] 4. This utility model adopts a translational multi-hole baffle and wear-resistant plate, combined with a linear actuator or electric push rod, which is relatively mature and reliable. It is easy to integrate seamlessly with the existing cigarette machine side wall ventilation opening, and the modification and installation are simple, without the need for major modifications to the existing equipment. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the installation structure of the device according to a specific embodiment;

[0023] Figure 2 This is a schematic diagram of the structure of a perforated baffle in a specific real-time mode;

[0024] Reference numerals: 1. Ventilation opening; 11. Perforated baffle; 12. Drive unit; 13. Wear-resistant plate. Detailed Implementation

[0025] The present application will now be described in further detail with reference to the embodiments.

[0026] Example 1

[0027] This embodiment provides an online automatic adjustment device for the ventilation volume of the secondary air separation inlet of a cigarette machine. The device is installed at the ventilation opening 1 on the side wall of the secondary air separation mechanism's outer shell. The device includes: a perforated baffle 11, sealing the ventilation opening 1; a driving device 12, with its non-driving end fixedly installed on the lower surface of the perforated baffle 11; and a wear-resistant plate 13, one end of which is fixed to the driving end of the driving device 12, and the other end of which is attached to the perforated surface of the perforated baffle 11. The driving device 12 drives the wear-resistant plate 13 to move relatively along the perforated surface of the perforated baffle 11. By covering / exposing the holes, the area is adjusted to change the effective area of ​​the perforations in the perforated baffle 11, thereby achieving online automatic adjustment of the ventilation volume of the inlet.

[0028] The lower surface of the porous baffle 11 has no ventilation holes, while the upper surface has an array of several circumferential or radially distributed ventilation holes to adjust the effective ventilation area of ​​the air inlet.

[0029] The ventilation hole is provided with an anti-clogging mesh on the inner side of the hole wall. Specifically, in this embodiment, the ventilation hole is equipped with an anti-clogging mesh with a hole diameter of 1mm to prevent tobacco from leaking through the hole.

[0030] The drive device 12 is a linear actuator or an electric push rod, and its stroke is matched with the range of variation of the aperture of the porous baffle 11.

[0031] The device also includes a wind pressure sensor and an air volume sensor. The sensors collect the wind pressure and air volume signals of the ventilation opening in real time and feed them back to the controller to achieve automatic adjustment.

[0032] The wind pressure sensor is located at the air inlet on the front side of the porous baffle 11 to detect the wind pressure before entering the baffle in real time; the air volume sensor is located in the non-ventilation hole area on the rear side of the porous baffle 11 to measure the air flow after passing through the baffle, so as to ensure that the pressure and flow signals collected by the sensor are not affected by the local turbulence in the pores.

[0033] It also includes a controller electrically connected to the drive device 12 and configured to receive signals from the wind pressure sensor and the air volume sensor or an external preset control signal, and to adjust the position of the wear-resistant plate 13 by controlling the stroke of the drive device 12; the controller dynamically adjusts the stroke of the drive device 12 based on the comparison result of at least one of the wind pressure signal and the air volume signal with the corresponding preset threshold, so that the ventilation volume approaches the target range.

[0034] Both the porous baffle 11 and the wear-resistant plate 13 are made of high-strength transparent material, allowing direct observation of the pore state through an external monitoring window or visual sensor, and also possessing impact resistance and wear resistance. Specifically, the porous baffle and the wear-resistant plate can be made of wear-resistant quartz glass.

[0035] The main working process of this utility model is as follows: the controller loads the target wind pressure / air volume range and threshold, at which time the drive device places the wear-resistant plate in the initial position (preset opening area); then the wind pressure and air volume sensors continuously sample to obtain the current air inlet status; the controller compares the real-time value with the target value or threshold; the drive device pushes the wear-resistant plate to move horizontally, increasing or decreasing the opening area; the new position changes the air outlet ventilation volume, and the sensor samples again until the wind pressure / flow rate stabilizes within the target range.

[0036] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this application; the dimensions described in the drawings and embodiments are not related to the specific physical object and are not used to limit the protection scope of this application. The physical dimensions can be selected and changed according to actual needs.

Claims

1. An online automatic adjustment device for the ventilation volume of the secondary air separation inlet of a cigarette machine, installed at the ventilation opening (1) on the side wall of the secondary air separation mechanism, characterized in that, The device includes: A perforated baffle (11) is used to seal the vent (1); A driving device (12) is fixedly installed on the lower surface of the porous baffle (11) at its non-driving end. A wear-resistant plate (13) has one end fixed to the drive end of the drive device (12) and the other end attached to the hole surface of the porous baffle (11). The driving device (12) drives the wear-resistant plate (13) to move relatively along the hole surface of the porous baffle (11). By covering / exposing the hole, the area is adjusted to change the effective area of ​​the porous baffle (11) pores, so as to realize the online automatic adjustment of the air inlet ventilation volume.

2. The online automatic adjustment device for the ventilation volume of the secondary air separation inlet of a cigarette machine according to claim 1, characterized in that, The perforated baffle (11) has no ventilation holes on its lower surface, but has an array of several circumferential or radially distributed ventilation holes on its upper surface to adjust the effective ventilation area of ​​the air inlet.

3. The online automatic adjustment device for the ventilation volume of the secondary air separation inlet of a cigarette machine according to claim 2, characterized in that, An anti-clogging mesh is provided on the inner side of the ventilation hole wall.

4. The online automatic adjustment device for ventilation volume of the secondary air separation inlet of a cigarette machine according to claim 1, characterized in that, The driving device (12) is an electric push rod, whose stroke is matched with the range of aperture variation of the porous baffle (11).

5. The online automatic adjustment device for the ventilation volume of the secondary air separation inlet of a cigarette machine according to claim 1, characterized in that, The device also includes a wind pressure sensor and an air volume sensor. The sensors collect the wind pressure and air volume signals of the ventilation opening in real time and feed them back to the controller to achieve automatic adjustment.

6. The online automatic adjustment device for the ventilation volume of the secondary air separation inlet of a cigarette machine according to claim 5, characterized in that, The wind pressure sensor is located at the air inlet on the front side of the perforated baffle (11) to detect the wind pressure before entering the baffle in real time; the air volume sensor is located in the non-ventilation hole area on the rear side of the perforated baffle (11) to measure the air flow rate after passing through the baffle.

7. The online automatic adjustment device for the ventilation volume of the secondary air separation inlet of a cigarette machine according to claim 1, characterized in that, It also includes a controller electrically connected to the drive unit (12) and configured to receive signals from the wind pressure sensor and the air volume sensor or an external preset control signal, and to adjust the position of the wear-resistant plate (13) by controlling the stroke of the drive unit (12).

8. The online automatic adjustment device for the ventilation volume of the secondary air separation inlet of a cigarette machine according to claim 1, characterized in that, Both the porous baffle (11) and the wear-resistant plate (13) are made of high-strength transparent material, so that the state of the pores can be directly observed through an external monitoring window or visual sensor.

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