A cigarette rod quality data-based thread drawing belt tension adjusting device and method

Abstract

The application discloses a kind of based on cigarette quality data's suction tape tension adjustment device and method, comprising: suction tape, for the belt-shaped piece with grid, tobacco is absorbed on the surface of suction tape by fan;Driving wheel, suction tape is set on the outer periphery of driving wheel, driving wheel is connected with driving device, and driving device is used to rotate driving wheel and drive suction tape to move;Cylinder, for supporting tension wheel and changing the tension of suction tape;Magnetic switch, set in cylinder and used to detect the stroke of cylinder and the stroke of suction tape, magnetic switch is connected with control system and passes the detection result to control system;Electric control proportional pressure regulating valve, connected with cylinder and control system, and electric control proportional pressure regulating valve is used to control the stroke of cylinder.The suction tape tension adjustment device and method based on cigarette quality data provided in the application test the best stroke of cylinder in different periods, and the stroke of cylinder is controlled by electric control proportional pressure regulating valve to approach the best stroke to improve the quality index of cigarette.

Description

Technical Field

[0001] This invention relates to the field of cigarette manufacturing equipment technology, and more specifically, to a cigarette drawer tension adjustment device based on cigarette weight data. The invention also relates to a testing method used in conjunction with the aforementioned device. Background Technology

[0002] In the field of cigarette manufacturing equipment, the suction belt is a mesh nylon belt. During production, a blower creates a relatively stable negative pressure within the air chamber. This negative pressure air passes through the mesh of the suction belt and acts on the suction channel, tightly adsorbing the loose and messy tobacco shreds onto the belt. As the belt moves forward, the amount of tobacco adsorbed on it increases during transport. By the time it reaches the weight control system, it forms a tobacco bundle of a certain thickness. The thickness and density of this tobacco bundle directly affect the quality and empty-head rate of the cigarette. The suction belt is driven by a drive wheel. To prevent slippage, front and rear cylinders drive tensioning wheels to maintain a constant tension on the belt, which is manually set by a pressure regulating valve. Due to the properties of nylon, the suction belt will deform and stretch under tension after a period of operation, causing the mesh to become thinner and longer. In severe cases, this can even lead to wear and tear on the belt, affecting its ability to adsorb tobacco shreds and causing significant changes in the thickness and density of the tobacco bundle, ultimately resulting in fluctuations in the quality indicators of the cigarette. To ensure the stability of cigarette quality indicators during the production process, it is necessary to control the degree of deformation of the wicking tape. Currently, major cigarette manufacturers set a fixed pressure value and regularly replace the wicking tape during production. Therefore, the quality indicators of cigarettes produced from a single wicking tape are unstable throughout its entire life cycle.

[0003] In conclusion, how to improve the quality indicators of cigarettes is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a suction ribbon tension adjustment device based on cigarette quality data, which can adjust the tension of the suction ribbon to improve the quality indicators of cigarettes.

[0005] Another objective of this invention is to provide a testing method that works in conjunction with the aforementioned device. This method can measure the optimal stroke of the cylinder at different time intervals, thereby adjusting the cylinder stroke based on the optimal stroke and improving the quality indicators of cigarettes.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A cigarette pack tension adjustment device based on cigarette weight data, comprising:

[0008] The suction ribbon is a strip with a mesh, which uses a fan to draw tobacco shreds onto its surface.

[0009] The drive wheel has a suction ribbon sleeved around its outer circumference. The drive wheel is connected to the drive device, which is used to rotate the drive wheel and move the suction ribbon.

[0010] A cylinder is used to support the tensioning wheel and change the tension of the suction cable;

[0011] A magnetic switch is installed in the cylinder and used to detect the stroke of the cylinder and the stroke of the suction ribbon. The magnetic switch is connected to the control system and transmits the detection results to the control system.

[0012] The electronically controlled proportional pressure regulating valve is connected to the cylinder and the control system. The electronically controlled proportional pressure regulating valve is used to control the stroke of the cylinder.

[0013] Preferably, the tensioning wheel includes a front tensioning wheel and a rear tensioning wheel, the front tensioning wheel is connected to a front cylinder, and the rear tensioning wheel is connected to a rear cylinder. The magnetic switch includes a front magnetic switch and a rear magnetic switch, the front magnetic switch is fixed to the front cylinder by a retainer, and the rear magnetic switch is fixed to the rear cylinder by a retainer.

[0014] Preferably, the electronically controlled proportional pressure regulating valve includes a front-end electronically controlled proportional pressure regulating valve and a rear-end electronically controlled proportional pressure regulating valve, wherein the front-end electronically controlled proportional pressure regulating valve is connected to a front-end cylinder, and the rear-end electronically controlled proportional pressure regulating valve is connected to a rear-end cylinder.

[0015] Preferably, both the front-end electronically controlled proportional regulating valve and the rear-end electronically controlled proportional pressure regulating valve are mounted on the mounting plate, which is fixed to the cylinder via a connecting plate. A muffler is also provided on the mounting plate.

[0016] Preferably, the control system is connected to the early warning device.

[0017] A testing method is applied to a cigarette rolling machine, the cigarette rolling machine including any of the above-mentioned suction belt tension adjustment devices based on cigarette quality data, the testing method comprising:

[0018] Control the cylinder stroke and set multiple sets of cylinders with different strokes. When testing the stroke of multiple sets of cylinders, the corresponding suction belt is used. When the cylinder strokes are different, the tobacco brand is the same. Control the drive wheels corresponding to multiple sets of cylinders to run at the same running speed. Control the fan to run at the same fan pressure when the drive wheels corresponding to multiple sets of cylinders are running.

[0019] The weight deviation of cigarettes produced by the suction ribbon corresponding to different cylinder strokes during different time periods and the number of empty ends removed are obtained.

[0020] The cylinder stroke corresponding to the minimum sum of cigarette weight deviation and empty head rejection within different time periods is selected as the optimal cylinder stroke within that time period.

[0021] Preferably, it further includes:

[0022] Replace the corresponding suction belt, control the pressure of the electronic proportional pressure regulating valve and set it to a fixed value so that the cylinder can tension the suction belt and the cigarette can be produced normally.

[0023] Control the pressure of the electronically controlled proportional pressure regulating valve and reduce it by ΔP, and control the drive wheel to run normally for three minutes to determine whether tobacco clogging occurs.

[0024] When a blockage occurs, control ΔP to decrease until the blockage is eliminated;

[0025] Obtain the stroke detected by the magnetic switch. If the stroke does not change, continue to reduce the pressure of the electronically controlled proportional pressure regulating valve and reduce ΔP until the stroke changes. Record the pressure value displayed by the electronically controlled proportional pressure regulating valve as the minimum working pressure value corresponding to the optimal stroke within this time period.

[0026] Replace the suction line with a new one and record the minimum working pressure value corresponding to the optimal stroke of different cylinders.

[0027] Preferably, while recording the cylinder stroke, the maximum stroke and the longest time that the suction ribbon can maintain normal production are also recorded. The maximum stroke that the suction ribbon can maintain normal production is the warning stroke parameter of the suction ribbon, and the longest time that the suction ribbon can maintain normal production is the life cycle of the suction ribbon.

[0028] This invention provides a suction belt tension adjustment device based on cigarette quality data. A magnetic switch detects the stroke of the cylinder and the suction belt, and the detection results are transmitted to a control system. The control system controls the cylinder stroke, thereby controlling the tension of the suction belt on the drive wheel, ensuring the suction belt tension is always maintained at an optimal level to improve cigarette quality. This invention also provides a testing method for cigarette rolling machines. This method controls the cylinder stroke and sets up multiple sets of cylinders with different strokes. Different suction belts correspond to different cylinder strokes, allowing the measurement of the cylinder stroke that minimizes the sum of the number of empty cigarette heads removed over multiple time periods. By comparing these measurements, the optimal cylinder stroke for different time periods can be obtained. The control system then guides the cylinder to approach the optimal stroke during different time periods, thereby improving cigarette quality. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the suction ribbon tension adjustment device based on cigarette quality data provided by the present invention.

[0031] Figure 2 This is a schematic diagram of the cylinder provided by the present invention;

[0032] Figure 3 This is a schematic diagram showing the working state of the cigarette wire tension adjustment device based on cigarette quality data provided by the present invention.

[0033] Figure 4 The schematic diagram of the gas path provided by this invention;

[0034] Figure 5 The minimum pressure statistical logic diagram provided by this invention;

[0035] Figure 6 This is a data application logic diagram provided by the present invention.

[0036] Figures 1 to 6 In the accompanying drawings, the reference numerals include:

[0037] 1 is the suction ribbon, 2 is the drive wheel, 3 is the cylinder, 3-1 is the front cylinder, 3-2 is the rear cylinder, 4 is the tensioning wheel, 4-1 is the front tensioning wheel, 4-2 is the rear tensioning wheel, 5 is the magnetic switch, 5-1 is the front magnetic switch, 5-2 is the rear magnetic switch, 6 is the electrically controlled proportional pressure regulating valve, 6-1 is the front electrically controlled proportional pressure regulating valve, 6-2 is the rear electrically controlled proportional pressure regulating valve, 7 is the clamping sleeve, 8 is the mounting plate, 9 is the connecting plate, and 10 is the muffler. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] The core of this invention is to provide a suction ribbon tension adjustment device based on tobacco quality data. This device can control the tension of the suction ribbon, thereby improving the quality indicators of tobacco.

[0040] Another core aspect of this invention is to provide a test method for detecting the optimal stroke of a cylinder, which can measure the cylinder stroke corresponding to the highest tobacco quality data.

[0041] Please refer to the attached document. Figure 1 To be continued Figure 6 This application provides a cigarette quality data-based suction ribbon tension adjustment device, comprising: a suction ribbon 1, which is a mesh-like strip that attracts tobacco shreds to its surface by a fan; a drive wheel 2, on which the suction ribbon 1 is fitted, and the drive wheel 2 is connected to a drive device for rotating the drive wheel 2 and moving the suction ribbon 1; a cylinder 3 for supporting a tensioning wheel 4 and changing the tension of the suction ribbon 1; a magnetic switch 5, located on the cylinder 3 and used to detect the stroke of the cylinder 3 and the stroke of the suction ribbon 1, the magnetic switch 5 being connected to a control system and transmitting the detection result to the control system; and an electronically controlled proportional pressure regulating valve 6, connected to the cylinder 3 and the control system, for controlling the stroke of the cylinder 3.

[0042] Specifically, the suction ribbon 1 has multiple meshes. The rotation of the drive wheel 2 by the drive device can move the suction ribbon 1. The suction ribbon 1 is set in the internal cavity of the air chamber. The fan in the air chamber creates a stable negative pressure, causing the tobacco to be adsorbed onto the suction ribbon 1. If the tension of the suction ribbon 1 is too high, it can easily cause the meshes on the suction ribbon 1 to deform, thus affecting the production quality of the cigarette. The magnetic switch 5 set on the cylinder 3 can detect the formation of the cylinder 3 and the stroke of the suction ribbon 1. The detection result is transmitted to the control system. The control system changes the stroke of the cylinder 3 through the electronically controlled proportional pressure regulating valve 6, so that the stroke of the cylinder 3 is in a dynamic state, and the tension of the suction ribbon 1 can be controlled at the optimal state, thereby improving the quality indicators of the cigarette.

[0043] Based on the above embodiment, the tensioning wheel 4 includes a front tensioning wheel 4-1 and a rear tensioning wheel 4-2. The front tensioning wheel 4-1 is connected to the front cylinder 3-1, and the rear tensioning wheel 4-2 is connected to the rear cylinder 3-2. The magnetic switch 5 includes a front magnetic switch 5-1 and a rear magnetic switch 5-2. The front magnetic switch 5-1 is fixed to the front cylinder 3-1 by a retainer 7, and the rear magnetic switch 5-2 is fixed to the rear cylinder 3-2 by a retainer 7.

[0044] Specifically, the front magnetic switch 5-1 is fixedly connected to the front cylinder 3-1 via a retainer 7, and the rear magnetic switch 5-2 is also fixed to the rear cylinder 3-2 via a retainer 7. The front magnetic switch 5-1 and the rear magnetic switch 5-2 respectively detect the stroke of the front cylinder 3-1 and the rear cylinder 3-2. The two cylinders 3 control the two tensioning wheels 4, which facilitates the control of the tension of the two suction ribbons 1.

[0045] Based on the above embodiments, the electronically controlled proportional pressure regulating valve 6 includes a front electronically controlled proportional pressure regulating valve 6-1 and a rear electronically controlled proportional pressure regulating valve 6-2. The front electronically controlled proportional pressure regulating valve 6-1 is connected to the front cylinder 3-1, and the rear electronically controlled proportional pressure regulating valve 6-2 is connected to the rear cylinder 3-2.

[0046] Specifically, two cylinders 3 are controlled by two electronically controlled proportional pressure regulating valves 6, thereby controlling the tension of the front suction ribbon and the rear suction ribbon, which is suitable for the production of double suction channels.

[0047] Optionally, the adjustment device provided in this application may consist of only a single tension wheel 4, a magnetic switch 5, and an electrically controlled proportional pressure regulating valve 6, to be suitable for production with a single wire suction channel.

[0048] Optionally, the adjustment device provided in this application may only include multiple tensioning wheels 4, magnetic switches 5, and electrically controlled proportional pressure regulating valves 6, to be suitable for production with multiple wire suction channels.

[0049] Based on the above embodiment, both the front-end electronically controlled proportional regulating valve 6-1 and the rear-end electronically controlled proportional pressure regulating valve 6-2 are mounted on the mounting plate 8. The mounting plate 8 is fixed to the cylinder 3 through the connecting plate 9. The mounting plate 8 is also equipped with a muffler 10.

[0050] Specifically, a muffler 10 is installed on the mounting plate 8. The exhaust port of the front cylinder 3-1 is connected to the muffler 10 through an air pipe to prevent dust from entering the cylinder. The exhaust port of the rear cylinder 3-2 is also connected to the muffler 10 through an air pipe to prevent dust from entering the cylinder.

[0051] In some embodiments, the control system is connected to the early warning device.

[0052] Specifically, the magnetic switch 5 detects the travel of the suction ribbon 1. When the travel of the suction ribbon 1 reaches a certain level or the use time of the suction ribbon 1 is too long, the control system controls the early warning device to issue an early warning, giving the operator enough time to replace the suction ribbon 1 and prevent the cigarette quality indicators from declining due to excessive use of the suction ribbon 1.

[0053] A testing method is applied to a cigarette rolling machine, which includes the suction belt tension adjustment device based on cigarette quality data in the above embodiments. The testing method includes:

[0054] Control the cylinder stroke and set multiple sets of cylinders with different strokes. When testing the stroke of multiple sets of cylinders, the corresponding suction belt is used. When the cylinder strokes are different, the tobacco brand is the same. Control the drive wheels corresponding to multiple sets of cylinders to run at the same running speed. Control the fan to run at the same fan pressure when the drive wheels corresponding to multiple sets of cylinders are running.

[0055] The weight deviation of cigarettes produced by the suction ribbon corresponding to different cylinder strokes during different time periods and the number of empty ends removed are obtained.

[0056] The cylinder stroke corresponding to the minimum sum of cigarette weight deviation and empty head rejection within different time periods is selected as the optimal cylinder stroke within that time period.

[0057] Specifically, the equipment operating speed is set to a fixed production speed, the fan pressure is set to a constant value, and the tobacco grade is not changed. The test is conducted by controlling variables.

[0058] Select a set of pressure value data for cylinder 3: P1, P2, P3...P n , where P n =P1 + n × ΔP, where the strokes of cylinder 3 under this pressure value are L1, L2, L3...L n Set the pressure value of the electronically controlled proportional pressure regulating valve 6 to P. 1, The magnetic switch determines the initial position of cylinder 3, and then continuous production is carried out. Within each time period Δt, the cylinder stroke, cigarette weight deviation and the number of empty heads removed are counted until the suction ribbon 1 breaks.

[0059] Next, a pressure value P2 is set for the electronically controlled proportional pressure regulating valve 6, where P2 = P1 + ΔP. The magnetic switch 5 determines the initial position of the cylinder 3. Then, a new suction belt 1 is replaced for continuous production. Within each time period Δt, the stroke of the cylinder 3, the weight deviation of the cigarettes, and the number of empty cigarettes removed are recorded until the suction belt 1 breaks. This process is repeated until P is completed. n Statistical data on pressure values, including P n =P1+(n-1)ΔP;

[0060] Based on the analysis and comparison of all statistical results, the optimal cylinder stroke for each time period is determined; for example, in t1~t2, the stroke from P1 to P2 is compared. n Under the specified pressure value, the data set with the fewest cigarette weight deviations and the fewest empty cigarette rejections is used, along with the corresponding cylinder travel stroke L. xn The optimal itinerary for that time period was determined and statistically analyzed.

[0061] As can be seen from the above test process, the optimal stroke of cylinder 3 in different time periods is used as standard data. During the production process, the stroke of cylinder 3 is detected by magnetic switch 5 in different time periods and the stroke of cylinder 3 is controlled by electronic proportional pressure regulating valve 6 so that the stroke of cylinder 3 approaches the optimal stroke in the corresponding time period. This ensures that the tension of the suction ribbon 1 is in the best state during the production process, thereby improving the production quality indicators of cigarettes.

[0062] The above testing methods also include:

[0063] Replace the corresponding suction belt, control the pressure of the electronic proportional pressure regulating valve and set it to a fixed value so that the cylinder can tension the suction belt and the cigarette can be produced normally.

[0064] Control the pressure of the electronically controlled proportional pressure regulating valve and reduce it by ΔP, and control the drive wheel to run normally for three minutes to determine whether tobacco clogging occurs.

[0065] When a blockage occurs, control ΔP to decrease until the blockage is eliminated; obtain the stroke detected by the magnetic switch. If the stroke does not change, continue to reduce the pressure of the electronically controlled proportional pressure regulating valve and reduce ΔP until the stroke changes. Record the pressure value displayed by the electronically controlled proportional pressure regulating valve as the minimum working pressure value corresponding to the optimal stroke within this time period.

[0066] Replace the suction line with a new one and record the minimum working pressure value corresponding to the optimal stroke of different cylinders.

[0067] Specifically, to prevent the suction ribbon 1 from slipping, the pulling force of cylinder 3 on the suction ribbon 1 cannot be too small. The pulling force of cylinder 3 on the suction ribbon 1 is controlled by the electronically controlled proportional pressure regulating valve 6. Therefore, the optimal stroke L of each cylinder 3 is... xn Each corresponds to a minimum working pressure value P. y During the process of the electronically controlled proportional pressure regulating valve 6 controlling the stroke of cylinder 3 to approach the optimal stroke, the working pressure of cylinder 3 should be greater than the minimum working pressure value P. y ;

[0068] Minimum working pressure P of the cylinder corresponding to different time periods y The specific testing method is as follows:

[0069] Replace the suction line with a new one, and set the pressure of the electronically controlled proportional pressure regulating valve to a fixed value P. x (At this pressure value, tensioning wheel 4 can tension suction belt 1, allowing for normal production.) The equipment operates continuously. When the magnetic switch detects a stroke of L... xn At this time, reduce the pressure of the electronically controlled proportional pressure regulating valve by ΔP and run it continuously for 3 minutes. Observe whether the equipment shows signs of tobacco clogging. If clogging occurs, it indicates that the pressure reduction is too large. Gradually reduce the value of ΔP in small increments until the tobacco stops clogging. Observe the stroke detected by the magnetic switch. If the stroke does not change, continue to reduce the pressure of the electronically controlled proportional valve 6 by ΔP until the stroke changes. Record the pressure value displayed by the electronically controlled proportional pressure regulating valve 6 at this time. The pressure value at this time is L. xn The corresponding minimum working pressure value P ySimilarly, by statistically analyzing the minimum pressure values ​​corresponding to all optimal strokes, the working pressure of cylinder 3 should always be controlled to be greater than the minimum pressure value corresponding to each time period during the operation of the cigarette machine to ensure normal production.

[0070] Based on the above embodiments, while recording the cylinder stroke, the maximum stroke and the longest time that the suction ribbon can maintain normal production are also recorded. The maximum stroke that the suction ribbon can maintain normal production is the warning stroke parameter of the suction ribbon, and the longest time that the suction ribbon can maintain normal production is the life cycle of the suction ribbon.

[0071] Specifically, when testing the optimal stroke and minimum working pressure of cylinder 3, the system can simultaneously test the stroke of suction ribbon 1 when the tobacco quality just reaches the qualified level under the optimal stroke of cylinder 3 at different time periods. This stroke of suction ribbon 1 is defined as the warning stroke parameter. When suction ribbon 1 reaches this stroke, the warning device issues a warning, reminding the user to replace suction ribbon 1. In actual engineering, multiple cigarette rolling machines are started simultaneously, and multiple cigarette rolling machines need to replace suction ribbon 1 simultaneously. Due to the different operating conditions of different cigarette rolling machines, the deformation degree of suction ribbon 1 is different. While testing the warning stroke parameter, the corresponding time is measured and defined as the suction ribbon life cycle. When the running time of suction ribbon 1 reaches the suction ribbon life cycle, all suction ribbon 1 of all cigarette rolling machines are replaced uniformly, which can ensure the production quality indicators of cigarettes.

[0072] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0073] The foregoing has provided a detailed description of the cigarette weight data-based suction ribbon tension adjustment device and method provided by the present invention. Specific examples have been used to illustrate the principles and implementation methods of the invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A test method for a cigarette-based suction ribbon tension adjustment device, characterized in that, The cigarette-based suction ribbon tension adjustment device includes: The suction ribbon (1) is a strip with a mesh, and the smoke is adsorbed onto the surface of the suction ribbon (1) by a fan; The drive wheel (2) is fitted around the outer periphery of the drive wheel (2). The drive wheel (2) is connected to the drive device, which is used to rotate the drive wheel (2) and drive the suction ribbon (1) to move. A cylinder (3) is used to support the tensioning wheel (4) and change the tension of the suction ribbon (1); A magnetic switch (5) is installed in the cylinder (3) and used to detect the stroke of the cylinder (3) and the stroke of the suction ribbon (1). The magnetic switch (5) is connected to the control system and transmits the detection result to the control system. An electronically controlled proportional pressure regulating valve (6) is connected to the cylinder (3) and the control system. The electronically controlled proportional pressure regulating valve (6) is used to control the stroke of the cylinder (3). The testing method includes: Multiple sets of cylinders with different preset stroke values ​​are set up. Each set of cylinders is tested using an independent suction ribbon, and the same brand of tobacco is used in each set of tests. The drive wheels corresponding to the multiple sets of cylinders are controlled to run at the same speed, and the fan is controlled to run at the same fan pressure while the drive wheels corresponding to the multiple sets of cylinders are running. The weight deviation of cigarettes produced by the suction ribbon corresponding to different cylinder strokes during different time periods and the number of empty ends removed are obtained. The cylinder stroke corresponding to the minimum sum of cigarette weight deviation and empty head rejection within different time periods is selected as the optimal cylinder stroke within that time period.

2. The test method according to claim 1, characterized in that, The tensioning wheel (4) includes a front tensioning wheel (4-1) and a rear tensioning wheel (4-2). The front tensioning wheel (4-1) is connected to the front cylinder (3-1), and the rear tensioning wheel (4-2) is connected to the rear cylinder (3-2). The magnetic switch (5) includes a front magnetic switch (5-1) and a rear magnetic switch (5-2). The front magnetic switch (5-1) is fixed to the front cylinder (3-1) by a retainer (7), and the rear magnetic switch (5-2) is fixed to the rear cylinder (3-2) by the retainer (7).

3. The test method according to claim 2, characterized in that, The electronically controlled proportional pressure regulating valve (6) includes a front-end electronically controlled proportional pressure regulating valve (6-1) and a rear-end electronically controlled proportional pressure regulating valve (6-2). The front-end electronically controlled proportional pressure regulating valve (6-1) is connected to the front-end cylinder (3-1), and the rear-end electronically controlled proportional pressure regulating valve (6-2) is connected to the rear-end cylinder (3-2).

4. The test method according to claim 3, characterized in that, The front-end electronically controlled proportional regulating valve (6-1) and the rear-end electronically controlled proportional pressure regulating valve (6-2) are both mounted on the mounting plate (8). The mounting plate (8) is fixed to the cylinder (3) by the connecting plate (9). The mounting plate (8) is also equipped with a muffler (10).

5. The test method according to claim 1, characterized in that, The control system is connected to the early warning device.

6. The test method according to any one of claims 1 to 5, characterized in that, The method further includes: Replace the corresponding suction belt, control the pressure of the electronic proportional pressure regulating valve and set it to a fixed value so that the cylinder can tension the suction belt and the cigarette can be produced normally. Control the pressure of the electronically controlled proportional pressure regulating valve and reduce it by ∆P, and control the drive wheel to run normally for three minutes to determine whether tobacco clogging occurs. When a blockage occurs, control ∆P to decrease until the blockage is eliminated; obtain the stroke detected by the magnetic switch. If the stroke does not change, continue to reduce the pressure of the electronically controlled proportional pressure regulating valve and reduce ∆P until the stroke changes. Record the pressure value displayed by the electronically controlled proportional pressure regulating valve as the minimum working pressure value corresponding to the optimal stroke within this time period. Replace the suction line with a new one and record the minimum working pressure value corresponding to the optimal stroke of different cylinders.

7. The test method according to claim 6, characterized in that, The method further includes: recording the cylinder stroke while recording the maximum stroke and the longest time that the suction ribbon can maintain normal production. The maximum stroke that the suction ribbon can maintain normal production is the warning stroke parameter of the suction ribbon, and the longest time that the suction ribbon can maintain normal production is the life cycle of the suction ribbon.

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