Moisture-proof paper heat-sealing device of cigarette packaging machine and control method

Abstract

The invention belongs to the technical field of cigarette making machines, and particularly relates to a damp-proof paper heat-sealing device of a cigarette packaging machine and a control method.The damp-proof paper heat-sealing device of the cigarette packaging machine comprises a heater driving mechanism, a supporting table is arranged above the heater driving mechanism, and a heating assembly is arranged on the supporting table and comprises a servo motor; the servo motor is fixed to the supporting table, an output shaft of the servo motor is connected with the turbine worm, and the front end of the turbine worm is connected with the heater. According to the technical scheme, the servo motor and the turbine worm machine are installed on an original heater driving device, the turbine worm is connected with the heater, when the heater seals a cigarette packet in a heat mode, a system drives the servo motor to drive the heater to approach the cigarette packet, and when the set torque is reached, the servo motor stops running, the heater presses the cigarette packet tightly, and the cigarette packet is heated. Small-amplitude automatic fine adjustment of the cigarette packet moisture-proof paper heater is achieved, constant-pressure work of the heat-sealing heater is guaranteed, and the heat-sealing effect of cigarette packet moisture-proof glass paper is effectively improved.

Description

Technical Field

[0001] The invention belongs to the technical field of cigarette making machines, and in particular relates to a moisture-proof paper heat sealing device for a cigarette packaging machine and a control method thereof. Background Art

[0002] In order to prevent cigarettes from getting damp and moldy during storage, a layer of moisture-proof cellophane is heat-sealed on the surface of cigarette packets to isolate the cigarette packets from the outside world. Figure 1 As shown, a constant-temperature heater 2, driven by a heater drive mechanism 3, approaches the folded, overlapping surface of the moisture-proof cellophane wrapper on the cigarette pack 1. The high temperature causes the cellophane wrapper to partially fuse, completing the heat-sealing process and isolating the cigarette pack from the outside world. In actual production, various factors, such as changes in cigarette pack raw material manufacturers and equipment adjustments, can cause the cigarette pack dimensions to change, especially if the pack dimensions decrease. Based on the aforementioned heat-sealing principle of the moisture-proof cellophane wrapper, the heater, driven by the heater drive mechanism, continues to move to its original fixed position. This increases the gap between the heater and the cigarette pack, preventing a tight seal between the heater and the cigarette pack, and easily leads to a false bond between the cellophane wrapper. Summary of the Invention

[0003] The object of the present invention is to provide a moisture-proof paper heat sealing device and a control method for a cigarette packaging machine, so as to solve the problems existing in the above-mentioned background technology.

[0004] To achieve the above objectives, this application is implemented through the following technical solutions:

[0005] A moisture-proof paper heat sealing device for a cigarette packaging machine includes a heater drive mechanism, a support platform is provided above the heater drive mechanism, a heating component is provided on the support platform, the heating component includes a servo motor, the servo motor is fixed to the support platform, the output shaft of the servo motor is connected to a worm gear, and the front end of the worm gear is connected to a heater.

[0006] Furthermore, it includes a system detector, which is electrically connected to the controller, and the controller is electrically connected to the heater drive mechanism, the servo motor and the heater respectively.

[0007] Furthermore, the heater and the worm gear are slidably arranged relative to the support platform.

[0008] A control method for a moisture-proof paper heat-sealing device of a cigarette packaging machine, comprising the following steps:

[0009] S1: The system detector detects that the cigarette pack has reached the set position and controls the heater drive mechanism to drive the heating component to move toward the cigarette pack;

[0010] S2: When the system detector detects that the heater has entered the set position, the controller controls the servo motor to rotate forward, and drives the heater to continue to press the cigarette pack through the worm gear;

[0011] S3. When the servo detects that the output torque of the servo motor reaches the set torque, the servo motor stops rotating and the heater continues heating the cigarette pack for the set time.

[0012] S4, the controller controls the heater drive mechanism to move in the opposite direction and return to the initial position. At the same time, the controller controls the servo motor to reverse and drive the heater to return to the initial position.

[0013] Furthermore, in step S3, when the servo detects that the output torque of the servo motor reaches the set torque, the servo motor stops rotating, and the control steps of maintaining the heater on the cigarette pack for the set time are as follows:

[0014] S31, when the server detects that the output torque of the servo motor begins to increase continuously within the set time, the server controls the speed of the servo motor to begin to decrease continuously at a uniform speed;

[0015] S32. When the speed of the servo motor decreases to 40-50% of the starting speed, the controller controls the heating current of the heater to reach the heating set value.

[0016] Furthermore, in step S4, the controller controls the heater driving mechanism to move in the reverse direction and return to the initial position, and the controller controls the heating current of the heater to drop to the standby set value.

[0017] Furthermore, the heating current of the standby setting value is 60-80% of the heating setting value.

[0018] The beneficial effects of the present invention are:

[0019] This technical solution consists of a controller, a servo, a servo motor, and a worm gear mechanism. The servo motor and worm gear are installed on the original heater drive device, and the worm gear is connected to the heater. When the heater heat-seals the cigarette pack, the system drives the servo motor to drive the heater close to the cigarette pack. When the set torque is reached, the servo motor stops running, causing the heater to press the cigarette pack, thereby realizing small-scale automatic fine-tuning of the cigarette pack moisture-proof paper heater, ensuring the constant pressure operation of the heat-sealing heater, and effectively improving the heat-sealing effect of the cigarette pack moisture-proof glass paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the original moisture-proof paper heat sealing device.

[0021] Figure 2 It is a schematic structural diagram of the moisture-proof paper heat sealing device of the present invention.

[0022] Figure 3 This is a timing diagram of the control method of the present invention.

[0023] Description of reference numerals:

[0024] 1. Cigarette pack; 2. Heater; 3. Heater drive mechanism; 4. Worm gear; 5. Servo motor; 6. Support platform. DETAILED DESCRIPTION

[0025] The technical solution of the present invention is described in detail below with reference to the accompanying drawings. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of the present invention, and cannot be interpreted as limiting the technical solution of the present invention.

[0026] like Figure 2 As shown, the present application relates to a moisture-proof paper heat sealing device for a cigarette packaging machine, including a heater drive mechanism 3. In the present application, the heater drive mechanism 3 is the prior art, which is still installed on the original mechanical device and its working mode is the same as the original heater drive mechanism.

[0027] The technical solution of the present application is achieved by installing a support platform 6 on the heater drive mechanism 3, and the support platform 6 moves with the heater drive mechanism 3. The support platform of the present application adopts a rectangular plate structure. In other embodiments of the present application, other structures such as a frame structure can also be adopted to realize the technical solution of the present application.

[0028] A heating component is set on the support platform 6, and the heating component includes a servo motor 5. The servo motor is fixed on the support platform. The output shaft of the servo motor is connected to the worm gear 4. The front end of the worm gear 4 is connected to the heater 2. The heater 2 and the worm gear 4 are slidably arranged relative to the support platform.

[0029] The present application includes a system detector (not shown in the figure), which is electrically connected to the controller, and the controller is electrically connected to the heater drive mechanism, the servo motor and the heater respectively.

[0030] When the control system detector of the device detects that the cigarette pack moisture-proof paper heater enters the working position, the system controls the servo motor to rotate forward through the worm gear to drive the heater to continue to press the cigarette pack. After the servo motor detects that the output torque reaches the set torque, the motor stops rotating and maintains the cigarette pack moisture-proof paper heater on the cigarette pack for 200 milliseconds. After the delay is completed, as the original device exits the working position, the motor reverses and returns to the initial position. As the work process cycles, Figure 3 As shown, the system works continuously and synchronously to complete the variable position automatic control of the heat sealing device of the moisture-proof paper of the cigarette package, adapts to the constant pressure operation of the heater under different working conditions, and improves the heat sealing quality of the moisture-proof glass paper of the cigarette package.

[0031] like Figure 3As shown, the present application relates to a control method for a moisture-proof paper heat sealing device of a cigarette packaging machine, which adopts the following steps:

[0032] S1. The system detector detects that the cigarette pack has arrived at the set position. This part is basically the same as the existing technology, controlling the heater drive mechanism to drive the heating component to move toward the cigarette pack. When the models of the cigarette packs are exactly the same, the machine that does not produce other models of cigarettes does not need to be improved by this technical solution. This technical solution focuses on the situation where the same machine can produce different models of cigarettes, especially when changing from the original conventional cigarettes to the production of medium or slim cigarettes, or vice versa, which will lead to a series of problems and require the improvement technology of this technical solution.

[0033] S2. When the system detector detects that the heater has entered the set position, the controller controls the heater drive mechanism to stop moving, and then controls the servo motor to rotate forward, driving the heater through the worm gear to continue to press the cigarette pack. At this time, if the cigarette is changed from a regular cigarette to a medium-sized cigarette, the heater is not in contact with the cigarette pack because the cigarette pack is thinner. At this time, the heater is driven closer to the cigarette pack through the worm gear.

[0034] S3. When the servo detects that the output torque of the servo motor reaches the set torque, the servo motor stops rotating and the heater continues heating the cigarette pack for the set time.

[0035] When the servo detects that the output torque of the servo motor reaches the set torque, the servo motor stops rotating, and the control steps for maintaining the heater on the cigarette pack for the set time are as follows:

[0036] S31. When the servo detects that the output torque of the servo motor begins to increase continuously within the set time, when the heater approaches the cigarette pack, the output torque of the servo motor begins to increase, but at this time the heater is not completely in contact with the cigarette pack. The servo controls the speed of the servo motor to begin to decrease continuously at a uniform speed to ensure that the force of the heater against the cigarette pack increases steadily.

[0037] S32. When the speed of the servo motor decreases to 40-50% of the starting speed, the controller controls the heating current of the heater to reach the heating set value.

[0038] In this technical solution, variable current heating technology is adopted. Although the heat of the heater is relatively stable when a stable current is maintained to heat the heater, when the heater is not working, the energy of the heater is in a wasted state, and its heat has a heating effect on the environment, resulting in higher heat in the working range, which not only increases the work of the air conditioner, but also causes energy waste.

[0039] S4, the controller controls the heater drive mechanism to move in the opposite direction and return to the initial position. At the same time, the controller controls the servo motor to reverse and drive the heater to return to the initial position.

[0040] When the controller controls the heater drive mechanism to move in the opposite direction and return to the initial position, the controller controls the heating current of the heater to drop to the standby setting value. The heating current of the standby setting value is 60-80% of the heating setting value.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solutions of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A moisture-proof paper heat sealing device for a cigarette packaging machine, characterized in that: It includes a heater drive mechanism, a support platform is arranged above the heater drive mechanism, a heating component is arranged on the support platform, the heating component includes a servo motor, the servo motor is fixed on the support platform, the output shaft of the servo motor is connected to the turbine worm, and the front end of the turbine worm is connected to the heater.

2. The moisture-proof paper heat sealing device for cigarette packaging machine according to claim 1, characterized in that: The system comprises a system detector, which is connected to a controller by electrical signals. The controller is respectively connected to a heater driving mechanism, a servo motor and a heater by electrical signals.

3. The moisture-proof paper heat sealing device for cigarette packaging machine according to claim 1, characterized in that: The heater and the worm gear are slidably arranged relative to the support platform.

4. A control method for a moisture-proof paper heat sealing device of a cigarette packaging machine, characterized in that: Use the following steps: S1: The system detector detects that the cigarette pack has reached the set position and controls the heater drive mechanism to drive the heating component to move toward the cigarette pack; S2: When the system detector detects that the heater has entered the set position, the controller controls the servo motor to rotate forward, and drives the heater to continue to press the cigarette pack through the worm gear; S3. When the servo detects that the output torque of the servo motor reaches the set torque, the servo motor stops rotating and the heater continues heating the cigarette pack for the set time. S4, the controller controls the heater drive mechanism to move in the opposite direction and return to the initial position. At the same time, the controller controls the servo motor to reverse and drive the heater to return to the initial position.

5. The control method of the moisture-proof paper heat sealing device of the cigarette packaging machine according to claim 4, characterized in that: In step S3, when the servo detects that the output torque of the servo motor reaches the set torque, the servo motor stops rotating, and the control steps for maintaining the heater on the cigarette pack for the set time are as follows: S31, when the server detects that the output torque of the servo motor begins to increase continuously within the set time, the server controls the speed of the servo motor to begin to decrease continuously at a uniform speed; S32. When the speed of the servo motor decreases to 40-50% of the starting speed, the controller controls the heating current of the heater to reach the heating set value.

6. The control method of the moisture-proof paper heat-sealing device of the cigarette packaging machine according to claim 5, characterized in that: In step S4 , the controller controls the heater driving mechanism to move in the reverse direction and return to the initial position, and the controller controls the heating current of the heater to drop to the standby set value.

7. The control method of the moisture-proof paper heat sealing device of the cigarette packaging machine according to claim 6, characterized in that: The heating current of the standby setting value is 60-80% of the heating setting value.

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