A laser drilling device with automatic drum wheel phase switching and a control method thereof

Abstract

The application is a laser punching device with automatic switching of drum wheel phase and an implementation method thereof, comprising a servo drive system, a laser punching device and an axle encoder. The method is to set the transmission gears of the punching rotating drum wheel in the laser punching device and the preceding drum wheel adjacent to the laser punching device as half-tooth structures which do not interfere with each other, and the gear of the punching rotating drum wheel and the gear of the subsequent drum wheel on the cigarette machine are in meshing transmission connection. The preceding drum wheel is driven to rotate by the main motor of the cigarette machine, and the punching rotating drum wheel and the subsequent drum wheel are controlled to rotate by the servo drive system. The encoder for collecting position and speed signals is arranged at the position of the preceding drum wheel, and the encoder is in communication connection with the servo drive system. When producing laser punched cigarettes or non-punched cigarettes, only the setting of the electric control system is needed to automatically switch the drum wheel phase, thereby reducing manual labor and saving cigarette brand switching time. After being switched into the non-punched cigarette production mode, the mechanical parts of the laser punching equipment can be prevented from continuing to wear and tear, and the influence on the appearance quality of the cigarettes and the quality of the empty head of the cigarettes is also reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to a drum phase automatic switching laser punching device and its implementation method, and belongs to the technical field of cigarette making equipment. BACKGROUND

[0002] When the existing cigarette machine is installed with the laser punching machine, the cigarette slot of the punching rotating drum must correspond to the cigarette slot of the previous drum, and the cigarette slot of the punching rotating drum must correspond to the cigarette slot of the subsequent drum. Since the laser punching machine for cigarette making has been applied, the phase of the subsequent drum must be adjusted manually after the punching machine is installed. The phase locking screw of each subsequent drum is loosened one by one, and then repositioned, which is time-consuming and laborious, and increases the wear of the mechanical structure (that is, the transmission of all drum gears of the cigarette machine is driven by the gear connected to the shaft of the drum, and the gear of the previous drum is engaged with the gear of the subsequent drum, so as to transfer the cigarette from the previous drum to the subsequent drum).

[0003] If the cigarette machine installed with the laser punching machine needs to produce non-punched cigarettes, it is also time-consuming and laborious due to the reverse operation of the above-mentioned adjustment process. Therefore, all customers do not adjust the mechanical transmission, but only close the laser emission to produce non-punched cigarettes. The cigarette is still rotated around the shaft under the action of the punching drum and the cigarette pushing drum. Therefore, on the one hand, the mechanical wear of the laser punching equipment is continuously increased, and on the other hand, the appearance quality of the cigarette is affected and the empty head rate of the cigarette is increased. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a laser punching device and its implementation method which can freely switch between punching and non-punching functions.

[0005] The technical solution of the present application to solve the above technical problems is as follows:

[0006] The present application is a laser punching device with automatic drum phase switching, which comprises a laser focusing device, a cigarette running system, a servo drive system, a servo motor and a synchronization signal. The features are as follows: there is a half-tooth structure between the punching rotating drum in the cigarette running system on the cigarette machine and the previous drum adjacent thereto, which does not interfere with each other, and the gears of other drums are engaged with each other for transmission; the punching rotating drum and the subsequent drum are engaged with each other for transmission; the previous drum is driven to rotate by the main motor of the cigarette machine; the punching rotating drum and the subsequent drum are driven to rotate by the servo motor of the servo drive system; and the servo drive system controls the servo motor according to the obtained synchronization signal.

[0007] The technical solution of the present application is as follows:

[0008] Further, when the cigarette machine is assembled, the tooth surface of the gear of the preceding drum wheel corresponds to the light surface of the gear of the perforating rotating drum wheel, forming a half gear with one half having teeth and the other half being toothless; the tooth surface of the gear of the perforating rotating drum wheel corresponds to the light surface of the gear of the preceding drum wheel, also forming a half gear with one half having teeth and the other half being toothless; there is no connection between the tooth surface and the light surface, i.e. there is no connection between the two half gears.

[0009] The laser perforating device with automatic switching of drum wheel phase comprises a laser focusing device, a cigarette running system, a servo driving system, a servo motor and a synchronization signal; the perforating rotating drum wheel in the cigarette running system and the drum wheel adjacent thereto are half tooth structures without interfering with each other, while the other drum wheels keep the original gear meshing transmission; the perforating rotating drum wheel and the preceding drum wheel keep the original gear meshing transmission; the perforating rotating drum wheel and the preceding drum wheel are driven to run by the main motor of the cigarette machine; the other drum wheels are driven to run by the servo motor of the servo driving system; the servo driving system controls the servo motor according to the obtained synchronization signal.

[0010] The technical solution of the further limitation of the present aspect is:

[0011] Further, when the cigarette machine is assembled, the tooth surface of the gear of the preceding drum wheel corresponds to the light surface of the gear of the perforating rotating drum wheel, the tooth surface of the gear of the perforating rotating drum wheel corresponds to the light surface of the gear of the drum wheel, forming a gear with half teeth, and the two half tooth gears do not interfere with each other.

[0012] The technical solution of the further limitation of the present aspect is:

[0013] Further, the half tooth structure is that the tooth surface is distributed along one side of the gear circumference, and the width of the tooth surface is smaller than the width of the entire gear.

[0014] The implementation method of the laser perforating device with automatic switching of drum wheel phase comprises the following steps:

[0015] (1) The preceding drum wheel is rotated by the main motor of the cigarette machine, and the perforating rotating drum wheel and the drum wheel behind it are rotated by the servo motor of the servo driving system; at the same time, the servo driving system controls the servo motor according to the synchronization signal, and the synchronization signal is obtained from the machine clock of the cigarette machine, a synchronization pulse or a sensor.

[0016] Preferably, an axle encoder is additionally arranged at a corresponding position in the preceding wheel train for collecting the speed and position signals of the cigarette machine, and controlling the phase adjustment and speed tracking of the drum wheel train;

[0017] (2) When producing punched cigarettes, the pre-rotating drum is driven by the main motor of the cigarette machine to deliver the cigarettes to the laser punching drum, the servo control system controls the punching rotating gear to adsorb the cigarettes in the groove b of the punching rotating drum, and through the cooperation of the cigarette wheel, the cigarettes fall into the groove a of the drum, and then are continuously transmitted to the subsequent gear train through the groove a;

[0018] (3) When producing non-punched cigarettes, the cigarette wheel is not in contact with the cigarettes, at this time, the servo control system controls the punching rotating drum to adsorb the transmitted cigarettes in the groove a of the punching rotating drum, and then transmits the cigarettes to the subsequent gear train.

[0019] The implementation method of the laser punching device with automatic switching of the drum phase comprises the following steps:

[0020] (1) The pre-rotating drum and the punching rotating drum are rotated by the main motor of the cigarette machine, and the subsequent drum is rotated by the servo drive system; at the same time, an encoder sensor is added at the corresponding position in the pre-rotating gear train for signal acquisition, and the phase adjustment and speed tracking of the subsequent gear train are controlled;

[0021] (2) When producing punched cigarettes, the pre-rotating drum is driven by the main motor of the cigarette machine to deliver the cigarettes to the laser punching drum, the punching rotating gear adsorbs the cigarettes in the groove b of the punching rotating drum, and through the cooperation of the cigarette wheel, the cigarettes fall into the groove a of the drum, and then are continuously transmitted to the subsequent gear train through the groove a under the action of the servo drive system;

[0022] (3) When producing non-punched cigarettes, the cigarette wheel is removed or moved away, so that the cigarette wheel is not in contact with the cigarettes, at this time, the subsequent gear train controlled by the servo control system adsorbs the cigarettes in the groove b of the punching rotating drum, and then transmits the cigarettes to the subsequent gear train.

[0023] The encoder sensor for collecting position and speed signals is arranged at the position of the pre-rotating drum of the cigarette machine, and the encoder sensor and the servo drive system are communicatively connected.

[0024] In summary, the control system provided by the present application only needs to automatically switch the phase of the gear train of the cigarette machine when producing laser punched cigarettes or non-punched cigarettes, reduces manual labor, and saves the time for changing cigarette brands. After switching to the non-punched cigarette production mode, the mechanical parts of the laser punching device can be prevented from continuing to wear and tear, and the influence on the appearance quality of the cigarettes and the quality of the empty head of the cigarettes can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic diagram of the present application.

[0026] Figure 2 is a schematic diagram of a half-tooth structure.

[0027] Figure 3 is a schematic diagram of the cigarette groove of the punching rotating drum.

[0028] Figure 4 is the schematic diagram of cigarette transmission when normal punching.

[0029] Figure 5.1 and Figure 5.2 is the schematic diagram of cigarette transmission when no punching in example 1.

[0030] Figure 6.1 and Figure 6.2 is the schematic diagram of cigarette transmission when no punching in example 2.

[0031] The prelude gear train 1 corresponds to the prelude transmission gear train 1, the postlude gear train 2 corresponds to the postlude transmission gear train 2, the servo power source 3, the punching rotary drum 4 corresponds to the tooth 1, the corresponding half tooth 2, the cigarette 6, the cigarette pushing wheel 7, the laser focusing head 8, the encoder sensor 9. DETAILED DESCRIPTION

[0032] Example 1

[0033] The implementation method is to disconnect the transmission of the transmission gear train corresponding to the drum of the cigarette making machine from somewhere, preferably to separate from the punching drum, the prelude gear train 1 is driven to rotate by the power source of the original cigarette machine, and the punching rotary drum 4 and the postlude gear train 2 behind it are driven to rotate by the servo control power source 3 added somewhere in the postlude gear train, preferably the servo power source added at the end of the postlude gear train. At the same time, an encoder sensor 9 is added at the corresponding position in the prelude gear train 1 for signal acquisition, control of the phase adjustment and speed tracking of the postlude gear train 2; when producing punched cigarettes, the prelude gear train 1 delivers cigarettes to the laser punching drum 4 under the action of the power source of the original cigarette machine, the servo control system controls the phase sequence of the laser punching drum to adsorb the cigarettes in groove b, and the cigarettes are rolled into groove a through the cigarette rolling wheel, and then continuously transmitted to the subsequent gear train. When producing non-punched cigarettes, the cigarette pushing wheel in the laser punching mechanical part is removed or moved away, so that the cigarette pushing wheel does not come into contact with the cigarettes. At this time, the servo control system controls the phase of the laser punching drum to adsorb the transmitted cigarettes on the drum through groove a, and then transmits the cigarettes to the subsequent gear train.

[0034] The tooth 2 in the gear train 2 and the tooth 1 in the gear train 1 need to be modified to half tooth structure, and there is no transmission relationship between the tooth 1 and the tooth 2, so that the power transmission of the original cigarette machine is disconnected at this place, so that the prelude gear train and the postlude gear train can be controlled separately without changing the transmission of the original gear train 1 and the gear train 2.

[0035] The power of the original cigarette machine is transmitted in the gear train 1 to the tooth 1, and the second power source with positioning servo function connected with the gear train 2 transmits the power in the gear train 2 to the tooth 2, both the tooth 1 and the tooth 2 are half teeth, forming the gear train 1 and the gear train 2 which do not affect each other.

[0036] Example 2

[0037] The adjacent punching rotary drum and the subsequent drum are half-tooth structures without interference, and the adjacent punching rotary drum and the previous drum are in meshing transmission connection; the punching rotary drum 4 and the previous drum are in transmission connection with the first power source, the subsequent drum is in transmission connection with the second power source, the first power source is in communication connection with the encoder 9 for collecting rotary speed at the position of the previous drum, and the second power source, and the laser punching device comprises the punching rotary drum, the cigarette pushing wheel and the laser focusing head.

[0038] The previous gear train 1 is rotated by the original cigarette machine power source, and the punching rotary gear 4 and the subsequent gear train 2 behind the punching rotary gear 4 are rotated by the servo power source 3; meanwhile, an encoder 9 is additionally arranged at the corresponding position in the previous gear train 1 for signal collection, phase adjustment and speed tracking of the subsequent gear train 2 are controlled;

[0039] (2) When the punched cigarettes are produced, the previous gear train 1 delivers the cigarettes to the laser punching drum 4 under the action of the original cigarette machine power source, the punched rotary gear 4 adsorbs the cigarettes in the groove b of the punching rotary drum, and the cigarettes fall into the groove a of the drum through the cooperation of the cigarette pushing wheel, and then the cigarettes are continuously transmitted forward to the subsequent gear train under the action of the groove a to the second power source;

[0040] (3) When the non-punched cigarettes are produced, the cigarette pushing wheel is removed or moved away so that the cigarette pushing wheel does not contact the cigarettes, and then the cigarettes adsorbed in the groove b of the drum by the punching rotary gear are transmitted to the subsequent gear train by the subsequent gear train controlled by the servo control system.

[0041] In addition to the above-mentioned embodiments, the present application can also have other implementation manners. Any technical solution formed by equivalent replacement or equivalent transformation falls within the protection scope of the present application.

Claims

1. A working method of a drum phase automatic switching laser perforating device, characterized in that: The drum phase automatic switching laser drilling device comprises a laser focusing device, a cigarette rotating system on a cigarette machine, a servo driving system and a synchronous signal, and a half-tooth structure exists between the laser drilling rotating drum in the cigarette rotating system on the cigarette machine and the front drum adjacent to the laser drilling rotating drum, the other drums are in gear transmission with each other, the laser drilling rotating drum and the rear drum are in gear transmission, the front drum is driven to rotate by the main motor of the cigarette machine, the laser drilling rotating drum and the rear drum are driven to rotate by the servo motor of the servo driving system, and the servo driving system controls the servo motor according to the synchronous signal. When the cigarette machine is assembled, the tooth surface of the gear of the front drum corresponds to the gear light surface of the laser drilling rotating drum, forming a half gear with one half having teeth and the other half being toothless, the tooth surface of the gear of the laser drilling rotating drum corresponds to the light surface of the gear of the front drum, also forming a half gear with one half having teeth and the other half being toothless, and the two half gears have no connection relationship, and the device comprises the following steps: (1) the front drum is driven to rotate by the main motor of the cigarette machine, the laser drilling rotating drum and the rear drum behind the laser drilling rotating drum are driven to rotate by the servo motor of the servo driving system, the servo driving system controls the servo motor according to the synchronous signal, the synchronous signal is from the encoder sensor, the encoder sensor is additionally arranged at the corresponding position in the front drum system for collecting the speed and position signals of the cigarette machine, and the phase adjustment and speed tracking of the rear drum system are controlled; (2) when the perforated cigarette is produced, the front drum delivers the cigarette to the laser drilling rotating drum under the action of the main motor of the cigarette machine, the servo driving system controls the laser drilling rotating drum to adsorb the cigarette in the groove b of the laser drilling rotating drum, the cigarette falls into the groove a of the laser drilling rotating drum through the cooperation of the cigarette pushing wheel, and then the cigarette is continuously transmitted to the rear drum system through the groove a; (3) when the non-perforated cigarette is produced, the cigarette pushing wheel does not contact the cigarette, at this time, the servo driving system controls the laser drilling rotating drum to directly adsorb the transmitted cigarette in the groove a of the laser drilling rotating drum, and then the cigarette is transmitted to the rear drum system.

2. The method of claim 1, wherein: The half-tooth structure is that the tooth surface is distributed along one side of the gear circumference, and the width of the tooth surface is smaller than the width of the whole gear.

3. A working method of a drum phase automatic switching laser perforating device, characterized in that: The drum phase automatic switching laser drilling device comprises a laser focusing device, a cigarette rotating system on a cigarette machine, a servo driving system and a synchronous signal, and a half-tooth structure exists between the laser drilling rotating drum in the cigarette rotating system on the cigarette machine and the front drum adjacent to the laser drilling rotating drum, the other drums are in gear transmission with each other, the laser drilling rotating drum and the rear drum are in gear transmission, the laser drilling rotating drum and the rear drum are driven to rotate by the servo motor of the servo driving system, and the servo driving system controls the servo motor according to the synchronous signal. When the cigarette machine is assembled, the tooth surface of the gear of the front drum corresponds to the gear light surface of the laser drilling rotating drum, forming a half gear with one half having teeth and the other half being toothless, the tooth surface of the gear of the laser drilling rotating drum corresponds to the light surface of the gear of the front drum, also forming a half gear with one half having teeth and the other half being toothless, and the two half gears have no connection relationship, and the device comprises the following steps: (1) The main motor of the cigarette making machine drives the front drum and the laser punching rotating drum to rotate, and the servo drive system drives the rear drum to rotate; at the same time, an encoder sensor is additionally arranged at a corresponding position in the front drum system for collecting position and speed signals, and the phase adjustment and speed tracking of the rear drum system are controlled; (2) When producing punched cigarettes, the front drum delivers cigarettes to the laser punching rotating drum under the action of the main motor of the cigarette making machine, the laser punching rotating drum adsorbs the cigarettes in the groove b of the laser punching rotating drum, and the cigarette pushing wheel cooperates with the cigarettes to continue to fall into the groove a of the laser punching rotating drum, then the cigarettes are continuously transmitted to the rear drum system through the groove a; (3) When producing non-punched cigarettes, the cigarette pushing wheel is removed or moved away so that the cigarette pushing wheel does not contact the cigarettes, at this time, the rear drum controlled by the servo drive system directly adsorbs the cigarettes in the groove b of the laser punching rotating drum, and then transmits the cigarettes to the rear drum system; The encoder sensor and the servo drive system are communicatively connected.

4. The method of claim 3, wherein: The half-tooth structure is specifically that the tooth surface is distributed along one side of the gear circumference, and the width of the tooth surface is less than the width of the entire gear.

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