Bursting bead filter stick forming system and method

Abstract

The invention provides a bead blasting filter stick forming system and method. The bead blasting filter stick forming system comprises or uses a tow supply device, a tow opening device and a filter stick forming device. The tow supply device is used for opening a tow stack into tows and conveying the tows to a downstream device, and the tow supply device comprises a tension stabilizing mechanism which is used for stabilizing tow tension between the tow opening mechanism and the tow stack; the tow opening device is used for opening tows supplied by the tow supply device; and the filter stick forming device is used for forming the tows opened by the tow opening mechanism into blast bead filter sticks. According to the invention, the tension change of tows in the filter stick forming process can be reduced, so that the tension of the tows tends to be stable, the forming stability of the blast bead filter stick is ensured, and the forming speed and the forming quality of the blast bead filter stick are improved.

Description

Technical Field

[0001] This application belongs to the field of tobacco filter rods, and particularly relates to a bead filter rod forming system and method. Background Art

[0002] Cigarette filter rods have a certain filtering effect on the particulate matter in the smoke, and can partially filter out certain components in the smoke, such as tar, nicotine, etc., reducing the harmful substances in the smoke, thereby alleviating the contradiction between smoking and health. The filter rod is the state before the filter tip is cut and formed. Currently, the cigarette filter rods produced are mainly made by applying a plasticizer to a cellulose acetate tow and then rolling it with paper after forming.

[0003] The filter rod forming device includes a tow supply unit, a tow opening unit, and a tow forming unit arranged according to the flow direction of the tow. Opening is the process of tearing large fiber clusters and blocks into small pieces and small bundles. Opening reduces the scale of the lateral connection of fibers and creates conditions for further loosening to the single fiber state in the future. Among them, the main process flow of the tow opening in the tow opening unit is to stretch the length and extend the width of the cellulose acetate web through a roller pressing opening system and an air opening system to make a uniform tow web, so that the tension of the tow before entering the tow forming unit tends to be constant, ensuring uniform and stable filling of the tow in the filter rod. During the forming process of the bead filter rod, since a space for accommodating the bead needs to be opened in the center of the tow, and the bead needs to be squeezed to break when sucking a bead cigarette, the stability requirement for tow opening in the bead filter rod forming is much higher than that of ordinary filter rods. To ensure the forming stability of the bead filter rod, the production speed is usually reduced to improve the accuracy, resulting in an increase in production cost.

[0004] The disadvantages of the prior art are:

[0005] First, when the production speed of the existing bead forming machine exceeds 180 m / min, the draw resistance becomes extremely unstable, with large fluctuations and cannot meet the process requirements.

[0006] Second, during the tow supply process of the existing bead forming machine, the tow is too tightly compressed at the head, tail, and the tied part of the tie tape of the tow. The positions of the upper, middle, and lower sections of the tow are different, and the traction required for the tow tape fluctuates greatly, resulting in uneven opening of the tow tape affected by the tensile force fluctuation in the opening roller opening link. After glycerol spraying and application, the glycerol content of the filter rod is uneven, and the draw resistance fluctuation of the filter rod is large, affecting the forming quality of the filter rod. If the tow tensile force is excessive, the tow will be broken, causing the equipment to stop. If the tow tensile force is too large, the feeding amount will decrease, and the filter rod is prone to shrinkage after cutting, affecting the appearance quality of the filter rod, thus resulting in the filter rod production not meeting the process requirements. Summary of the Invention

[0007] In view of this, the purpose of this application is to improve the production speed of the bead filter rod. The technical solution adopted by this application to achieve this purpose is a bead filter rod forming system and method.

[0008] A first aspect of the present application provides a bead filter rod forming system, including a tow supply device, a tow opening device, and a filter rod forming device; the tow supply device is used for performing a first opening on the tow from the tow stack and conveying it to the tow opening device. Among them, the tow supply device includes a tension stabilizing mechanism, and the tension stabilizing mechanism is used for stabilizing the tension of the tow between the tow supply device and the tow stack; the tow opening device is used for performing a second opening on the tow supplied by the tow supply device; the filter rod forming device is used for forming the tow opened by the tow opening device into a bead filter rod.

[0009] Furthermore, the tow supply device further includes a first conveying mechanism and a first opening mechanism; the first conveying mechanism is used for conveying the tow, and the first opening mechanism is used for performing a first opening on the tow within the tow supply device.

[0010] Furthermore, the tension stabilizing mechanism includes: a lifting mechanism and a first sensor mechanism.

[0011] Furthermore, the first sensor mechanism includes a position sensor, and the position sensor is used for detecting the position of the first conveying mechanism.

[0012] Furthermore, the lifting mechanism is used for lifting and lowering the first conveying mechanism.

[0013] Furthermore, the position sensor is electrically connected to the lifting mechanism.

[0014] Furthermore, the tow supply device further includes a tow buffer mechanism, and the first sensor mechanism further includes a buffer sensor. The tow buffer mechanism is used for temporarily storing the tow to match the processing speed of the downstream mechanism. The buffer sensor is used for detecting the amount of tow in the tow buffer mechanism, and the buffer sensor is electrically connected to the first conveying mechanism.

[0015] Furthermore, the tow supply device further includes: a weighing mechanism, and the weighing mechanism is used for weighing the tow stack, and the weighing mechanism is electrically connected to the tension stabilizing mechanism.

[0016] Furthermore, the weighing mechanism is also electrically connected to the tow opening device.

[0017] Furthermore, the first opening mechanism includes an air opener.

[0018] Furthermore, the tow supply device further includes an electrostatic elimination mechanism, and the electrostatic elimination mechanism is used for eliminating static electricity from the tow within the tow supply device.

[0019] Furthermore, the tow opening device includes a second conveying mechanism and a second opening mechanism. The second conveying mechanism is used for conveying the tow supplied by the tow supply device, and the second tow opening mechanism is used for opening the tow supplied by the tow supply device.

[0020] Further, the second loosening mechanism includes a pneumatic loosening roller.

[0021] Further, the tow loosening device further includes an air pressure stabilizing and regulating supply mechanism, which is used to supply air to the pneumatic loosening roller in a stable manner.

[0022] The second aspect of the present application provides a method for forming a pearl filter rod, which uses the above-mentioned pearl filter rod forming system.

[0023] Further, the method for forming a pearl filter rod includes the following steps:

[0024] S1. Tow supply step: The tow supply device performs primary loosening on the tow stack from top to bottom and conveys the tow to the tow loosening device.

[0025] S2. Tow loosening step: The tow loosening device performs secondary loosening on the tow and conveys the tow to the filter rod forming device.

[0026] S3. Filter rod forming step: The filter rod forming device forms the tow into a pearl filter rod.

[0027] Further, the tow supply step S1 includes the following steps:

[0028] S11. Weighing step: Start the weighing mechanism to obtain the weight information of the tow stack.

[0029] S12. Lifting step: The lifting mechanism drives the first conveying mechanism to move to a position corresponding to the weight information.

[0030] S13. First conveying step: Start the first conveying mechanism to convey the tow from the tow stack to the downstream mechanism.

[0031] S14. First loosening step: Start the first loosening mechanism to loosen the tow from the tow stack.

[0032] S15. Signal sending step: Send a tow supply operation signal to the tow loosening device.

[0033] During the process of forming a pearl filter rod, since it is necessary to open a space for accommodating the pearl in the center of the tow, and when sucking a pearl cigarette, it is necessary to squeeze the filter rod to break the pearl, the requirement for the stability of tow loosening in the formation of a pearl filter rod is much higher than that of a general filter rod. To ensure the forming stability of the pearl filter rod, the production speed is usually reduced to improve the accuracy. As an important part of a cigarette, the size and stability of the filter rod suction resistance are the key indicators for measuring the quality of the filter rod, and ultimately affect the smoking experience and filtering effect of the cigarette.

[0034] The applicant has found that the tension change between the tow stack and the tow supply device in the prior art is relatively unstable. During the process of the tow supply device loosening the tow stack into tows, the relative distance between the fixed tow supply device and the tow stack that is gradually loosened into tows from top to bottom continuously increases, and the tension continuously increases. In this application, a tension stabilizing mechanism is provided in the tow supply device to reduce the tow tension change during this process, make the tension of the tow in the subsequent process tend to be stable, ensure the forming stability of the bead filter rod, and is beneficial to improving the forming speed and forming quality of the bead filter rod. Brief Description of the Drawings

[0035] The above content of this application and the following specific embodiments will be better understood when read in conjunction with the accompanying drawings. It should be noted that the drawings are only examples of the claimed technical solutions.

[0036] Figure 1 is a schematic diagram of a bead filter rod forming system of this application;

[0037] Figure 2 is a schematic diagram of the tow supply device of this application;

[0038] Figure 3 is a schematic diagram of another perspective (back side) of the tow supply device of this application;

[0039] Figure 4 is a schematic diagram of the tow loosening device of this application;

[0040] Figure 5 is a schematic flow diagram of the bead filter rod forming method of this application;

[0041] Figure 6 is Figure 5 a schematic diagram of the composition of step S1 in;

[0042] Figure 7 is Figure 5 a schematic diagram of the composition of step S2 in.

[0043] Description of the Reference Numerals:

[0044] Tow supply device: 100;

[0045] Tow loosening device: 200;

[0046] Filter rod forming device: 300;

[0047] Installation back plate: 110;

[0048] Wire guiding ring: 111;

[0049] First air loosener: 112;

[0050] Passive roller: 113;

[0051] Drive roller: 114;

[0052] Drive roller cylinder: 114a;

[0053] Second air opener: 115;

[0054] Guide plate: 116;

[0055] Guide rod: 117;

[0056] Air circuit: 118;

[0057] Buffer box: 120;

[0058] Lifting screw rod assembly: 131;

[0059] Drag chain: 132;

[0060] Output roller pair: 201;

[0061] Drive output roller: 201a;

[0062] Driven output roller: 201b;

[0063] First opener roller pair: 202;

[0064] First drive opener roller: 202a;

[0065] First driven opener roller: 202b;

[0066] Second opener roller pair: 203;

[0067] Second drive opener roller: 203a;

[0068] Second driven opener roller: 203b;

[0069] Pre-tensioning roller pair: 204;

[0070] Glycerol spraying mechanism: 205;

[0071] Second guide plate: 206. Detailed implementation mode

[0072] The detailed features and advantages of the present application are described in detail in the following detailed implementation mode. The content is sufficient for any person skilled in the art to understand the technical content of the present application and implement it accordingly. And according to the specification, claims and drawings disclosed in this specification, those skilled in the art can easily understand the relevant purposes and advantages of the present application.

[0073] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0074] In the description of this embodiment, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product is habitually placed during use. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this application.

[0075] To make the purpose, technical solution and advantages of this application clearer, the following will further describe the implementation manners of this application in detail with reference to the drawings.

[0076] This application provides a specific embodiment of a bead filter rod forming system. Refer to Figures 1 to 4 , the bead filter rod forming system includes: a tow supply device 100, a tow opening device 200, and a filter rod forming device 300.

[0077] Among them, the tow supply device 100 is used to loosen the tow stack into tows and convey them to downstream devices, namely the tow opening device 200 and the filter rod forming device 300. The tow opening device 200 is used to perform primary opening on the tows supplied by the tow supply device 100 and convey them to the filter rod forming device 300. The filter rod forming device 300 is used to form the tows loosened by the tow opening mechanism into bead filter rods.

[0078] The tow supply device 100 includes a tension stabilizing mechanism, and the tension stabilizing mechanism is used to stabilize the tow tension between the tow opening mechanism and the tow stack.

[0079] During the process of forming the bead filter rod, since it is necessary to open a space for accommodating the beads in the center of the tow, and it is necessary to squeeze the filter rod to break the beads when sucking the bead cigarette, the stability requirement for tow opening in the formation of the bead filter rod is much higher than that of ordinary filter rods. To ensure the forming stability of the bead filter rod, the production speed is usually reduced to improve the accuracy. The filter rod is an important part of the cigarette stick, and the size and stability of the filter rod draw resistance are the key indicators for measuring the quality of the filter rod, which ultimately affect the sucking experience and filtering effect of the cigarette stick. The applicant found that the tension change between the tow stack and the tow supply device 100 in the prior art is relatively unstable. During the process of the tow supply device 100 loosening the tow stack into tows, the relative distance between the fixed tow supply device 100 and the tow stack that is gradually loosened into tows from top to bottom continuously increases, and the tension continuously increases. This application sets a tension stabilizing mechanism in the tow supply device 100 to reduce the change of tow tension during this process, make the tension of the tow in the subsequent process tend to be stable, ensure the forming stability of the bead filter rod, and is beneficial to improving the forming speed and forming quality of the bead filter rod.

[0080] Specifically, the tension stabilizing mechanism includes: a lifting mechanism and a first sensor mechanism.

[0081] The first sensor mechanism includes a position sensor. The position sensor is used to detect the position of the first conveying mechanism. The lifting mechanism is used to lift and lower the first conveying mechanism. The position sensor is electrically connected to the lifting mechanism. The position sensor can send the position information of the first conveying mechanism to the lifting mechanism, so that the lifting mechanism can judge whether to lift and lower the first conveying mechanism according to the position information of the first conveying mechanism.

[0082] The first sensor mechanism includes a buffer sensor. The buffer sensor is arranged in the tow buffer mechanism. The tow buffer mechanism is used to temporarily store the tow to match the processing speed of the downstream mechanism; the buffer sensor is used to detect the amount of tow in the tow buffer mechanism. The buffer sensor is electrically connected to the first conveying mechanism. When there is too much tow in the tow buffer mechanism, the buffer sensor makes the first conveying mechanism suspend conveying, so that the tow in the tow buffer mechanism is always within the safety margin, and the tow belt tension is always constant, thus ensuring the stability of the tow opening effect. The tension stabilizing mechanism makes the tow tension in the front side of the tow supply device 100 relatively stable. The tow buffer mechanism makes the tow tension at both ends of the tow buffer mechanism relatively stable. Under the synergistic action of the tension stabilizing mechanism and the tow buffer mechanism, the system has better tow tension consistency, can greatly improve the tow opening and conveying speed, and improve the forming efficiency of the pearl filter rod.

[0083] More specifically, the tow supply device 100 of this embodiment includes: a mounting back plate 110, a wire guiding ring 111, a first air opener 112, a passive roller 113, an active roller 114, an active roller cylinder 114a, a second air opener 115, a guide plate 116, a guide rod 117, an air circuit 118, a buffer box 120, a lifting lead screw assembly 131 and a drag chain 132.

[0084] Among them, the wire guiding ring 111, the first air opener 112, the passive roller 113, the active roller 114, the active roller cylinder 114a, the second air opener 115, the guide plate 116, the guide rod 117, the air circuit 118 and the buffer box 120 are mounted on the mounting back plate 110. The wire guiding ring 111, the passive roller 113, the active roller 114, the active roller cylinder 114a, the guide plate 116, the guide rod 117, the air circuit 118 form a first conveying mechanism. The first air opener 112 and the second air opener 115 form a first opening mechanism.

[0085] It can be understood that roller conveying, such as the cooperation of the passive roller 113 and the active roller 114 to convey the tow, may have a certain opening effect in addition to the conveying effect.

[0086] The tow from the tow bale passes through the wire guide ring 111 and then enters the first air opener 112. After being opened by the first air opener 112, it enters between the passive roller 113 and the active roller 114. The active roller cylinder 114a drives the active roller 114 to rotate reciprocally, providing conveying power for the tow while forming mechanical opening of the tow. The passive roller 113, the active roller 114, and the active roller cylinder 114a form a typical roller-type pneumatic mechanical opening structure. The tow after mechanical opening enters the buffer box 120. The tow at the outlet of the buffer box 120 bypasses several guide rods 117 and further enters the second air opener 115. After being further opened by the second air opener 115, it is guided by the guide plate 116 and enters the subsequent process.

[0087] Among them, the air circuit 118 supplies air to the first air opener 112, the second air opener 115, and the active roller cylinder 114a.

[0088] An air opener is a device that blows the tow inside it by applying an air flow to the tow, so as to disperse the tow, separate the monofilaments as much as possible, spread the tow network structure, and homogenize the spatial structure to achieve opening.

[0089] The lifting lead screw assembly 131 and the drag chain 132 constitute a tension stabilizing mechanism. The drag chain 132 is driven by a power source such as a motor and can drive the mounting back plate 110 and the mechanisms thereon to lift. The mounting back plate 110 is sleeved on the lifting lead screw assembly 131. The lifting lead screw assembly 131 guides the lifting movement of the mounting back plate 110 and ensures the attitude stability of the mounting back plate 110 during the lifting process.

[0090] In this embodiment, the tow supply device 100 further includes a weighing mechanism for weighing the tow bale. The weighing mechanism is electrically connected to the tension stabilizing mechanism. The smaller the weight of the tow bale detected by the weighing mechanism, the greater the degree of consumption of the tow bale, and the lower the top height of the tow bale. At this time, the tension stabilizing mechanism reduces the tension of the tow. It can be understood that other sensors that can reflect the top height of the tow bale can also achieve a similar purpose to the weighing mechanism.

[0091] In some embodiments, the tow supply device 100 further includes an electrostatic elimination mechanism for eliminating static electricity from the tow in the tow supply device 100 to avoid static adsorption between the tow and the conveying mechanism, resulting in tension changes or entanglement.

[0092] Specifically, the tow opening device 200 includes a second conveying mechanism, a second opening mechanism, and an air pressure stabilizing and regulating supply mechanism. The second conveying mechanism is used to convey the tow supplied by the tow supply device, and the second tow opening mechanism is used to perform second opening on the tow supplied by the tow supply device 100.

[0093] The second loosening mechanism includes a pneumatic loosening roller, and the air pressure stabilizing and regulating supply mechanism is used to supply air to the pneumatic loosening roller with stable pressure, so that the operation accuracy of the pneumatic loosening roller is higher, the loosening degree of the tow is more stable, and the tension of the tow is also more stable.

[0094] More specifically, the tow loosening device 200 includes an output roller pair 201, a first loosening roller pair 202 and a second loosening roller pair 203, a pre-drawing roller pair 204, a glycerin spraying mechanism 205 and a second guide plate 206.

[0095] The output roller pair 201 and the pre-drawing roller pair 204 form a second conveying mechanism, and the first loosening roller pair 202 and the second loosening roller pair 203 form a second loosening mechanism.

[0096] The first loosening roller pair 202 is composed of a first driving loosening roller 202a and a first driven loosening roller 202b, and the second loosening roller pair 203 is composed of a second driving loosening roller 203a and a second driven loosening roller 203b.

[0097] After the tow is loosened by the pre-drawing roller pair 204, the first loosening roller pair 202 and the second loosening roller pair 203 in the tow loosening device 200 in sequence, glycerin is sprayed in the glycerin spraying mechanism 205, and finally it is output through the output roller pair 201 and the second guide plate 206.

[0098] The filter rod forming device 300 can adopt the prior art to form the fully loosened tow into a filter rod, such as the device for forming the fully loosened tow into a filter rod in the KDF2, ZL22, KDF3 or ZL26 units.

[0099] This application also provides an embodiment of a method for forming a filter rod with beads, which uses the above-mentioned embodiment of the filter rod forming system with beads for reference Figure 5 , and includes the following steps:

[0100] S1. Tow supply step: The tow supply device 100 loosens the tow stack from top to bottom for the first time and conveys the tow to the tow loosening device 200;

[0101] S2. Tow loosening step: The tow loosening device 200 loosens the tow for the second time and conveys the tow to the filter rod forming device 300;

[0102] S3. Filter rod forming step: The filter rod forming device 300 forms the tow into a filter rod with beads.

[0103] Specifically, with reference to Figure 6 , the tow supply step S1 includes the following steps:

[0104] S11. Weighing step: Start the weighing mechanism to obtain the weight information of the tow stack.

[0105] S12. Lifting step: The lifting mechanism drives the mounting backplane 110 and the structures thereon to move to a position corresponding to the weight information.

[0106] S13. Driving rotation step of the driving roller: The driving roller cylinder 114a presses and reciprocates, and the driving roller 114 rotates reciprocally.

[0107] S14. First loosening step: Start the positive pressure air sources of the first air loosener 112 and the second air loosener 115, and start the static eliminator.

[0108] S15. Signal sending step: Send a tow supply operation signal to the tow loosening device 200.

[0109] The first loosened tow directly comes from the tow stack, and is greatly affected by the height position of the top of the tow stack.

[0110] The tow supply operation signal includes at least the conveying information of the tow, for example, includes at least one of the conveying speed information of the tow, the weight information of the tow stack, and the rotation frequency information of the driving roller 114. Optionally, it may also include the loosening information of the tow, such as the air pressure information of the first air loosener 112 and the air pressure information of the second air loosener 115.

[0111] Specifically, referring to Figure 7 , step S2 includes the following steps:

[0112] S21. Second loosening step: The output roller pair 201, the first loosening roller pair 202, the second loosening roller pair 203, and the pre-tensioning roller pair 204 rotate synchronously according to the tow supply operation signal.

[0113] Preferably, the inter-roller pressure of the output roller pair 201, the first loosening roller pair 202, the second loosening roller pair 203, and the pre-tensioning roller pair 204 is automatically adjusted based on the weight information of the tow stack. Specifically, for example, the smaller the weight of the tow stack, the weaker or stronger the loosening effect is adjusted by the inter-roller pressure, and the specific situation can be determined according to the tension distribution of the tow stack itself.

[0114] S22. Glycerin spraying step: The glycerin spraying mechanism 205 closes the door to spray glycerin.

[0115] In some embodiments, it further includes:

[0116] S23. Winding detection step: The winding sensor detects whether winding occurs on the output roller pair 201, the first loosening roller pair 202, the second loosening roller pair 203, and the pre-tensioning roller pair 204. If winding occurs, the output roller pair 201, the first loosening roller pair 202, the second loosening roller pair 203, and the pre-tensioning roller pair 204 decelerate and stop, and are reset after manual processing; if not, it runs normally.

[0117] Preferably, steps S1 and S2 adopt EtherCAT bus servo, and through the spindle synchronization virtual technology, the servo synchronous operation of each roller component is realized, and the ratio is adjustable.

[0118] Preferably, the pneumatic components in steps S1 and S2 control the proportional regulating valve through PID to achieve stable pressure control, and drive the Festo valve island through the EtherCAT bus protocol to realize the linkage of components.

[0119] It should be noted that the filter rod forming step in step S3 can adopt the prior art device for forming a fully opened tow into a pearl filter rod, such as the method steps for forming a fully opened tow into a filter rod in the KDF2 / ZL22 / KDF3 / ZL26 unit.

[0120] In summary:

[0121] 1. The present invention is applicable to the tow buffer synchronization control technology.

[0122] 2. The present invention can achieve synchronous control of the servo tow line speed up to 300 m / min through the EtherCAT bus, with extremely small suction resistance fluctuations, which can be controlled within ±0.2 of the optimal standard.

[0123] 3. The present invention facilitates monitoring the operation of the motor through the HMI interface, such as current, torque, and speed.

[0124] 4. The present invention realizes constant pressure supply for the roller parts through the proportional valve.

[0125] 5. The present invention can automatically complete the control steps with one key to achieve automated operation.

[0126] 6. The present invention can improve the opening quality and stabilize the suction resistance.

[0127] 7. The present invention can control the cylinder in the tow opening device to act according to the set function through the EtherCAT bus protocol.

[0128] 8. The present invention can monitor the running state of the tow. After winding, the machine can quickly stop to prevent damage to the equipment.

[0129] The tow opening device in the prior art uses a common servo motor and cannot run at high speed synchronously. The gas circuit is controlled by a common solenoid valve. This application can adopt a bus valve island in cooperation with a proportional regulating valve to achieve PID constant pressure control of the tow opening device.

[0130] The original opening system has no roll winding detection sensor, which is extremely easy to damage the cylinder and cause deformation of the opening roll. After upgrading, the tow winding can be detected in time, and the machine stops and alarms to protect the equipment.

[0131] The terms and expressions used herein are for descriptive purposes only, and the present application should not be limited to these terms and expressions. The use of these terms and expressions does not imply the exclusion of any equivalent features of the illustration and description (or parts thereof), and it should be recognized that various modifications that may exist should also be included within the scope of the claims. Other modifications, variations, and substitutions may also exist. Accordingly, the claims should be regarded as covering all such equivalents.

[0132] Similarly, it should be noted that although the present application has been described with reference to current specific embodiments, those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present application, and various equivalent changes or substitutions can be made without departing from the spirit of the present invention. Therefore, as long as the changes and modifications of the above embodiments are within the scope of the spirit of the present application, they will fall within the scope of the claims of the present application.

Claims

1. A bead filter rod forming system, characterized in that: It includes a tow supply device, a tow opening device and a filter rod forming device; The tow supply device is used for first opening the tow from the tow stack and delivering it to the tow opening device, wherein the tow supply device comprises a tension stabilizing mechanism, and the tension stabilizing mechanism is used for stabilizing the tension of the tow between the tow supply device and the tow stack; The tow opening device is used for performing a second opening on the tow supplied by the tow supply device; The filter rod forming device is used to form the filament bundle opened by the filament bundle opening device into a bursting bead filter rod.

2. The bead filter rod forming system according to claim 1, characterized in that: The filament supply device further includes a first conveying mechanism and a first opening mechanism; the first conveying mechanism is used for conveying the filament, and the first opening mechanism is used for performing the first opening on the filament in the filament supply device.

3. The bead filter rod forming system according to claim 2, characterized in that: The tension stabilizing mechanism comprises: a lifting mechanism and a first sensor mechanism; The first sensor mechanism includes a position sensor, and the position sensor is used to detect the position of the first conveying mechanism; The lifting mechanism is used to lift and lower the first conveying mechanism; The position sensor is electrically connected to the lifting mechanism.

4. The bead-blasting filter rod forming system according to claim 3, characterized in that: The tow supply device further includes a tow buffer mechanism, and the first sensor mechanism further includes a buffer sensor; The tow buffer mechanism is used to temporarily store the tow to match the processing speed of the downstream mechanism; The buffer sensor is used to detect the amount of the tow in the tow buffer mechanism, and the buffer sensor is electrically connected to the first conveying mechanism.

5. The bead filter rod forming system according to claim 2, characterized in that: The first opening mechanism comprises an air opener.

6. The bead filter rod forming system according to claim 1, characterized in that: The tow supply device further comprises: a weighing mechanism, which is used to weigh the tow stack, and the weighing mechanism is electrically connected to the tension stabilizing mechanism.

7. The bead filter rod forming system according to claim 6, characterized in that: The weighing mechanism is also electrically connected to the tow opening device.

8. The bead-blasting filter rod forming system according to claim 1, characterized in that: The tow opening device comprises a second conveying mechanism and a second opening mechanism, wherein the second conveying mechanism is used to convey the tow supplied by the tow supplying device, and the second opening mechanism is used to open the tow supplied by the tow supplying device; The second opening mechanism comprises a pneumatic opening roller.

9. A method for forming a bead filter rod, characterized in that: The bead filter rod forming system according to any one of claims 1 to 8 is used.

10. The method for forming a popping bead filter rod according to claim 9, characterized in that: The following steps are involved: S1, a tow supplying step: the tow supplying device performs a first opening of the tow stack from top to bottom, and conveys the tow to the tow opening device; S2, a tow opening step: the tow opening device performs a second opening on the tow and conveys the tow to the filter rod forming device; S3, filter rod forming step: the filter rod forming device forms the filament bundle into a bead filter rod.

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