A multi-specification cigarette rod dynamic draw resistance simulation and forming device

Abstract

The present invention discloses a dynamic draw resistance simulation device adapted to multiple specifications of cigarette rods. The cigarette rods are adsorbed by negative pressure in the cigarette rod grooves of their respective drums, and the cigarette gripping nozzle drives the cigarette rods to rotate 360 degrees, thereby realizing circumferential punching of the filter tip and punching at the ignition end of the cigarette rod. Moreover, the device can adapt to cigarette rods with different diameter data, greatly accelerating the R & D progress of new cigarette products and the accumulation of original data.

Description

Technical Field

[0001] The invention belongs to the technical field of cigarette experimental equipment, and in particular relates to a dynamic draw resistance simulation forming device for cigarettes of multiple specifications. Background Art

[0002] In the past, the tobacco industry required the installation of corresponding punching devices on the high-speed cigarette making machine for the punching of cigarette filter tips and the punching of the ignition end of cigarettes. Since the number of cigarettes required for experimental research is small, and the online cigarette making machine has high speed and high consumption, it brings great inconvenience to the production department and generates great waste. In particular, in recent years, the research on the dynamic draw resistance of cigarettes has been gradually carried out, and the main means of affecting the dynamic draw resistance of cigarettes is to use the punching of cigarette filter tips and the punching of the ignition end of cigarettes. The two adjustment means are reflected on a cigarette at the same time, which can realize the shaping setting of the dynamic draw resistance of cigarettes.

[0003] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0004] The object of the present invention is to provide a dynamic draw resistance simulation forming device for cigarettes of various specifications, so as to overcome the defects in the above-mentioned prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides a dynamic suction resistance simulation forming device for cigarettes of multiple specifications, which is placed on a laboratory cigarette punching device and includes at least one laser, a focusing device for filter tip punching, a galvanometer scanning focusing device for ignition end punching, an airflow distribution disk and a drum wheel, and a rotating suction nozzle. The device is characterized in that the drum wheel is a drum wheel that can adapt to at least two cigarette diameter specifications, and one side of the drum wheel is equipped with an airflow distribution disk, an airflow control solenoid valve, a servo motor connected to the drum wheel shaft, an axis encoder or a positioning sensor for angular positioning of the drum wheel or the drum wheel shaft, and at least one rotating suction nozzle. All of the above-mentioned components are communicatively connected to the control system.

[0006] The technical solution further defined in the present invention is:

[0007] Preferably, the focusing device for perforating the filter tip is located outside the rotating suction nozzle, and is responsible for perforating the circumference of the cigarette filter tip to form a preliminary setting of the draw resistance of the entire cigarette;

[0008] The galvanometer scanning and focusing device for the axial perforation of the cigarette ignition section is located on the outside of the drum wheel. It is responsible for the formation of the axial holes and grooves of the cigarette ignition section. Together with the perforation of the cigarette filter tip, it forms a dynamically changing cigarette draw resistance setting.

[0009] The rotating axis of the rotating suction nozzle coincides with the central axis of the adsorbed cigarette.

[0010] Preferably, in the above technical solution, at least two types of adsorption grooves with different specifications and sizes are circumferentially distributed on the surface of the drum. There are negative pressure adsorption passages with the same number and types as the adsorption grooves inside the drum. The two ends of the negative pressure adsorption passage are respectively open at the bottom of the adsorption groove and the axial side surface of the drum. The negative pressure adsorption passage is radially distributed along the body of the drum and is communicated with the two open ends. The negative pressure adsorption holes corresponding to the bottom of each specification of adsorption groove are distributed on circumferences with different diameters on the axial side surface of the drum, namely the A circumference and the B circumference.

[0011] Preferably, in the above technical solution, the galvanometer scanning focusing device for punching the ignited end of the cigarette is located outside the drum, and the distance from the surface of the cigarette adsorbed in the cigarette groove of the drum is approximately equal to the focusing focal length F1 of the galvanometer scanning focusing device.

[0012] The focusing device for punching the filter tip is located outside the rotating suction nozzle, and the distance from the surface of the cigarette adsorbed in the rotating suction nozzle is approximately equal to the focusing focal length F2 of the focusing device for punching the filter tip.

[0013] Preferably, in the above technical solution, the air flow distribution disk is of a disk-type flange structure and is coaxially installed at the rear side of the drum and is installed corresponding to the side wall of the drum provided with air suction holes. The surface of the air flow distribution disk corresponding to the air suction holes of the drum is distributed with air suction grooves having at least two circumferential diameters, which respectively correspond to the A circumference and the B circumference of the air suction holes on the side wall of the drum. The circumferential length thereof meets the requirement for the transfer of the cigarette from one drum to the next drum, and this surface is tightly fitted with the side wall surface of the air suction hole of the drum.

[0014] Preferably, in the above technical solution, it is processed from a material with a low coefficient of friction, including graphite, graphite alloy, nylon, fluororubber, etc., and preferably graphite or graphite alloy material.

[0015] Preferably, in the above technical solution, the suction nozzle is eccentrically installed on the rotating shaft of the adjustment base. When the rotating shaft drives the suction nozzle to rotate to an appropriate angular position, the rotating shaft of the rotating suction nozzle coincides with the central axis of the corresponding cigarette.

[0016] The multi-specification cigarette dynamic suction resistance simulation forming negative pressure adsorption control method is carried out according to the following steps: Set at least two types of cigarette specifications, namely A and B. When selecting a cigarette with A specification diameter, the control system controls the servo motor of the drum shaft to rotate, and at the same time detects the signal of the shaft encoder or the positioning sensor. When the cigarette groove with A specification reaches the feeding port, the shaft encoder or the A groove positioning sensor detects and sends a signal of reaching the position, and the rotation of the servo motor pauses. This is used as the initial position for the subsequent operation of the drum. At this time, the solenoid valve works to provide negative pressure air suction to the A-specification cigarette grooves of all drums. The A-specification cigarette grooves correspond to the rotating suction nozzle, and the negative pressure air suction provided to the B-specification cigarette grooves of all drums is closed.

[0017] When selecting cigarette sticks with B - specification diameter, the control system controls the servo - motor of the drum shaft to rotate, and simultaneously detects the signal of the shaft encoder or the B - slot positioning sensor. When the B - specification cigarette - stick slot reaches the feeding port, the shaft encoder or the positioning sensor detects and sends a signal indicating arrival, and the rotation of the servo - motor pauses. This serves as the initial position for the subsequent operation of the drum. At this time, the solenoid valve operates to provide negative - pressure suction to the B - specification cigarette - stick slots of all drums. The B - specification cigarette - stick slots correspond to the rotating suction nozzles, and the negative - pressure suction provided to the A - specification cigarette - stick slots of all drums is turned off.

[0018] At the same time, only cigarette sticks of the same diameter specification can be present in all drums, suction nozzles, and feeding ports.

[0019] The dynamic suction - resistance simulation - forming laser control method for multi - specification cigarette sticks is carried out according to the following steps: When the A - specification cigarette sticks run below the galvanometer scanning and focusing device, the laser emitted by the laser device passes through the beam deflection device, and the galvanometer scanning is used to achieve the tracking and focusing punching along the axial direction of the ignition section of the cigarette sticks, completing the punching of the ignition section of the cigarette sticks. At this time, the cigarette sticks A corresponding to the rotating suction nozzles have not arrived yet, and the suction nozzles are in a waiting state and do not need to be punched.

[0020] The B - specification cigarette sticks also run in the same way.

[0021] The conversion of the light beam is controlled by the beam deflection device to achieve the time - sharing operation processing of one laser device.

[0022] The further - defined technical solution of the present invention is as follows:

[0023] Furthermore, if two laser devices are used for operation, the beam deflection device can be cancelled, and the filter - tip punching and the axial punching of the ignition section can be carried out simultaneously.

[0024] When the A - specification cigarette sticks run below the galvanometer scanning and focusing device, the galvanometer scanning is used to achieve the tracking and focusing punching of the cigarette sticks, completing the punching of the ignition end of the cigarette sticks. At this time, the cigarette sticks A corresponding to the rotating suction nozzles have not arrived yet, and the suction nozzles are in a waiting state and do not need to be punched.

[0025] The B - specification cigarette sticks also run in the same way; the conversion of the light beam is controlled by the polarization device to achieve the time - sharing operation processing of one laser device.

[0026] The present invention has the following beneficial effects:

[0027] This application is a set of equipment designed for dynamic suction - resistance experiments, which can meet the daily experimental detection of our company, greatly facilitating the accumulation of test data of our company. These data will provide strong data support for the subsequent product research and development of our company. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the drum structure;

[0030] Figure 3 This is a schematic diagram of the rotary nozzle drive;

[0031] Figure 4 This is a schematic diagram of the state when the rotation is working normally;

[0032] Figure 5 is a schematic cross-sectional view of a drum;

[0033] Figure 6 This is a schematic diagram of the structure of the air flow distribution plate.

[0034] Figure 7 Implementation example diagram for dual lasers.

[0035] Figure 8 Schematic diagram of the curvature of the suction nozzle corresponding to A and B specifications of cigarettes. DETAILED DESCRIPTION

[0036] The specific embodiments of the present invention are described in detail below, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0037] Unless explicitly stated otherwise, throughout the specification and claims, the term “comprise” or variations such as “include” or “comprising”, etc., will be understood to include the stated elements or components but not to exclude other elements or components.

[0038] A laboratory-used device for simulating dynamic draw resistance of cigarettes with multiple diameters and specifications, which is placed on a laboratory cigarette punching device.

[0039] Composition: at least one laser, a deflection device, a focusing device for perforating the filter tip, a galvanometer scanning focusing device for perforating the lit end of the cigarette, a feed inlet, a drum wheel that can accommodate at least two cigarette diameter specifications, an air flow distribution plate, an air flow control solenoid valve, a servo motor connected to the drum wheel shaft transmission, an axis encoder or positioning sensor for angular positioning of the drum wheel or drum wheel shaft, at least one rotating suction nozzle, and a control system.

[0040] The following is a detailed description of each improvement point:

[0041] ① The galvanometer scanning and focusing device for punching holes at the lit end of the cigarette is located on the outside of the drum, and the distance from the surface of the cigarette adsorbed in the cigarette groove of the drum is approximately equal to the focusing focal length F1 of the galvanometer scanning and focusing device;

[0042] The focusing device for the filter tip perforation is located outside the rotating suction nozzle, and the distance from the surface of the cigarette adsorbed in the rotating suction nozzle is approximately equal to the focusing focal length F2 of the focusing device for the filter tip perforation;

[0043] ② The drum that can adapt to at least two cigarette diameter specifications has adsorption grooves for at least two cigarette specifications distributed alternately on its surface. One groove corresponds to adsorbing cigarettes with diameter specification A, and the other groove corresponds to adsorbing cigarettes with diameter specification B.

[0044] The adsorption grooves of each specification communicate with the air suction holes on the side wall of the drum through internal negative pressure pipes. The air suction holes are distributed on different diameter circumferences of the side wall according to different cigarette diameter specifications. The air suction holes for all cigarettes with diameter specification A are located on the A circumference, and the air suction holes for all cigarettes with diameter specification B are located on the B circumference.

[0045] ③ The air flow distribution disk is of a disk-type flange structure, coaxially installed at the rear of the drum, and installed corresponding to the side wall of the drum where the air suction holes are provided.

[0046] It is processed from materials with low friction coefficients, including graphite, graphite alloy, nylon, fluororubber, etc. Graphite or graphite alloy materials are preferred.

[0047] The side of the air flow distribution disk corresponding to the air suction holes of the drum is distributed with air suction grooves having at least two circumferential diameters, corresponding to the A circumference and the B circumference of the air suction holes on the side wall of the drum respectively. The length meets the requirement for the transfer of cigarettes from one drum to the next drum, and this side is tightly fitted with the side wall surface of the air suction holes of the drum.

[0048] The air suction grooves with the two circumferential diameters are respectively connected to a two-way three-way solenoid valve or two independent single-channel solenoid valves through two negative pressure pipes, so as to respectively control the negative pressure air suction in the air suction groove A or B.

[0049] ④ When a rotating suction nozzle is installed on an adjustment base (i.e., when one suction nozzle is used to meet the requirements of rotating punching for two cigarette diameter specifications), the rotating suction nozzle is driven by a motor at the rear of the adjustment base to achieve 360-degree rotation of the cigarette. The rotation axis of the rotating suction nozzle coincides with the central axis of the cigarette.

[0050] The rotating small base is further installed on the adjustment base, and the adjustment base is further controlled by a rotating positioning device at the rear to select different cigarette specifications corresponding to different rotating suction nozzles.

[0051] ⑤ When at least one laser is used and a common laser is adopted to complete two punching processes simultaneously, laser distribution and drive are carried out through a multi-task management computer board; or a time-sharing working mode is adopted to complete the two punchings respectively.

[0052] ⑥ Working method:

[0053] When selecting cigarettes with the diameter of Specification A, the control system controls the servo motor of the drum shaft to rotate, and at the same time detects the signal of the shaft encoder or the positioning sensor. When the cigarette slot of Specification A reaches the feeding port, the shaft encoder or the A-slot positioning sensor detects and sends a signal indicating that the position is reached, and the rotation of the servo motor pauses. This serves as the initial position for the subsequent operation of the drum. At this time, the solenoid valve operates to provide negative pressure suction to the cigarette slots of Specification A of all drums. The cigarette slots of Specification A correspond to the rotating suction nozzles, and the solenoid valve closes to provide negative pressure suction to the cigarette slots of Specification B of all drums;

[0054] When selecting cigarettes with the diameter of Specification B, the control system controls the servo motor of the drum shaft to rotate, and at the same time detects the signal of the shaft encoder or the B-slot positioning sensor. When the cigarette slot of Specification B reaches the feeding port, the shaft encoder or the positioning sensor detects and sends a signal indicating that the position is reached, and the rotation of the servo motor pauses. This serves as the initial position for the subsequent operation of the drum. At this time, the solenoid valve operates to provide negative pressure suction to the cigarette slots of Specification B of all drums. The cigarette slots of Specification B correspond to the rotating suction nozzles,

[0055] and the solenoid valve closes to provide negative pressure suction to the cigarette slots of Specification A of all drums;

[0056] ⑦Within the same time, only cigarettes of the same diameter specification can be in all drums, suction nozzles, and feeding ports.

[0057] When the cigarettes of Specification A run under the galvanometer scanning focusing device, the galvanometer scanning is used to achieve the tracking and focusing punching of the cigarettes, and the punching of the ignition end of the cigarettes is completed. At this time, the corresponding cigarette A of the rotating suction nozzle has not reached yet, and the suction nozzle is in a waiting state and does not need to be punched;

[0058] The cigarettes of Specification B also run in the same way; the conversion of the light beam is controlled by the polarization device

[0059] so as to achieve the time-sharing operation processing of one laser;

[0060] When using the technical solution of punching with two lasers, they can work either in a time-sharing manner or simultaneously, but the manufacturing, operation, and maintenance costs are much higher.

[0061] The foregoing description of specific exemplary embodiments of the present invention is for purposes of illustration and exemplification. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made in light of the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical applications, so that those skilled in the art can implement and utilize various different exemplary embodiments of the present invention, as well as various different selections and changes. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A dynamic draw resistance simulation molding device for multiple specifications of cigarettes, placed on a laboratory cigarette punching device, including at least one laser, a focusing device for filter tip punching, a galvanometer scanning focusing device for ignition end punching, an airflow distribution plate and drum, and a rotating suction nozzle, Features: The drum wheel is a drum wheel that can adapt to at least two cigarette diameter specifications. One side of the drum wheel is equipped with an airflow distribution plate, an airflow control solenoid valve, a servo motor connected to the drum wheel shaft, an axis encoder or a positioning sensor for angular positioning of the drum wheel or the drum wheel shaft, and at least one rotating suction nozzle. The servo motor, the airflow control solenoid valve, the axis encoder or the positioning sensor are all communicatively connected to the control system. The drum wheel that can adapt to at least two cigarette diameter specifications has adsorption grooves of at least two cigarette specifications distributed alternately on its surface, one groove corresponds to adsorbing cigarettes of diameter specification A, and the other groove corresponds to adsorbing cigarettes of diameter specification B. Each adsorption groove of each specification is connected to the suction holes on the side wall of the drum wheel through the internal negative pressure pipe; the suction holes are distributed on different diameter circumferences of the side wall according to the different diameter specifications of the cigarettes; all the suction holes for the cigarettes of specification A diameter are located on the circumference of A, and all the suction holes for the cigarettes of specification B diameter are located on the circumference of B; The air flow distribution plate is a plate-type flange structure, which is coaxially installed on the rear side of the drum wheel and is installed corresponding to the side wall of the drum wheel where the air suction hole is set; A surface of the air flow distribution plate corresponding to the air suction holes of the drum is provided with air suction grooves having at least two circumferential diameters, which correspond to the circumferences A and B of the air suction holes on the side wall of the drum, respectively, and the lengths meet the requirements of transferring cigarettes from one drum to the next, and the surface is closely matched with the side wall of the air suction holes of the drum; The suction grooves of the two circumferential diameters are respectively connected to a two-position three-way solenoid valve or two independent single-channel solenoid valves through two negative pressure pipes, so as to achieve the purpose of controlling the negative pressure suction in the suction groove A or B respectively.

2. The dynamic draw resistance simulation forming device for cigarettes of multiple specifications according to claim 1, It is characterized in that The focusing device for punching the filter tip is located on the outside of the rotating suction nozzle, and is responsible for punching the circumference of the cigarette filter tip to form a preliminary setting of the draw resistance of the entire cigarette; the galvanometer scanning focusing device for punching the ignition end tip is located on the outside of the drum wheel, and is responsible for forming the axial holes and grooves in the ignition section of the cigarette, and together with the punching of the cigarette filter tip, forms a dynamically changing setting of the draw resistance of the cigarette; the rotating axis of the rotating suction nozzle coincides with the central axis of the adsorbed cigarette.

3. The dynamic draw resistance simulation forming device for cigarettes of various specifications according to claim 1, It is characterized in that The galvanometer scanning and focusing device for punching holes at the ignition end is located on the outside of the drum wheel, and the distance from the surface of the cigarette adsorbed in the cigarette groove of the drum wheel is approximately equal to the focusing focal length F1 of the galvanometer scanning and focusing device; the focusing device for punching holes at the filter tip is located on the outside of the rotating suction nozzle, and the distance from the surface of the cigarette adsorbed in the rotating suction nozzle is approximately equal to the focusing focal length F2 of the focusing device for punching holes at the filter tip.

4. The dynamic draw resistance simulation forming device for cigarettes of various specifications according to claim 1, It is characterized in that The air flow distribution plate is made of a material with a low friction coefficient, including graphite or graphite alloy or nylon or fluororubber.

5. The multi - specification cigarette rod dynamic draw resistance simulation forming device according to claim 4, characterized in that, the air flow distribution plate is processed from graphite or graphite alloy material.

6. The multi - specification cigarette rod dynamic draw resistance simulation forming device according to claim 1 or 2 or 3, characterized in that, the rotary suction nozzle is installed on the rotating shaft of the adjustment base. When the rotating shaft drives the suction nozzle to rotate, the draw resistance drives the cigarette rod to rotate to realize circumferential punching of the filter tip of the cigarette rod, and the rotating shaft of the rotary suction nozzle coincides with the central axis of the corresponding cigarette rod; corresponding to the cigarette rod diameters of specifications A and B, there are rotary suction nozzles with corresponding nozzle arcs A and B.

7. A negative pressure adsorption control method for multi - specification cigarette rod dynamic draw resistance simulation forming, characterized in that: using the multi - specification cigarette rod dynamic draw resistance simulation forming device as described in claim 1, and proceeding according to the following steps: Set the cigarette rod specifications to 2 types, namely A and B. When selecting a cigarette rod with a diameter of specification A, the control system controls the servo motor of the drum shaft to rotate, and at the same time detects the signal of the shaft encoder or the positioning sensor. When the cigarette rod slot of specification A reaches the feeding port, the shaft encoder or the A - slot positioning sensor detects and sends a signal indicating arrival, and the rotation of the servo motor pauses. This is used as the initial position for the subsequent operation of the drum. At this time, the solenoid valve works to provide negative pressure suction air to the cigarette rod slots of specification A of all drums. The cigarette rod slots of specification A correspond to the feeding port and the rotary suction nozzle, and the negative pressure suction air provided to the cigarette rod slots of specification B of all drums is closed; When selecting a cigarette rod with a diameter of specification B, the control system controls the servo motor of the drum shaft to rotate, and at the same time detects the signal of the shaft encoder or the B - slot positioning sensor. When the cigarette rod slot of specification B reaches the feeding port, the shaft encoder or the positioning sensor detects and sends a signal indicating arrival, and the rotation of the servo motor pauses. This is used as the initial position for the subsequent operation of the drum. At this time, the solenoid valve works to provide negative pressure suction air to the cigarette rod slots of specification B of all drums. The cigarette rod slots of specification B correspond to the feeding port and the rotary suction nozzle, and the negative pressure suction air provided to the cigarette rod slots of specification A of all drums is closed; At the same time, only cigarette rods of the same diameter specification can be in all drums, suction nozzles, and feeding ports.

8. A laser control method for multi - specification cigarette rod dynamic draw resistance simulation forming, characterized in that: using the multi - specification cigarette rod dynamic draw resistance simulation forming device as described in claim 1, and proceeding according to the following steps: When a cigarette rod of specification A runs under the galvanometer scanning focusing device, the laser emitted by the laser device passes through the beam deflection device, and the galvanometer scanning realizes the tracking and focusing punching in the axial direction of the ignition section of the cigarette rod, completing the punching of the ignition section of the cigarette rod. At this time, the corresponding cigarette rod A of the rotary suction nozzle has not arrived yet, and the suction nozzle is in a waiting state and no punching is required; When a cigarette rod of specification B runs under the galvanometer scanning focusing device, the laser emitted by the laser device passes through the beam deflection device, and the galvanometer scanning realizes the tracking and focusing punching in the axial direction of the ignition section of the cigarette rod, completing the punching of the ignition section of the cigarette rod. At this time, the corresponding cigarette rod B of the rotary suction nozzle has not arrived yet, and the suction nozzle is in a waiting state and no punching is required; The conversion of the beam is controlled by the beam deflection device to realize the time - sharing operation processing of one laser device.

Images