Bursting bead filter stick forming device

Abstract

The utility model discloses a bead blasting filter rod forming device which comprises a tow opening unit, the tow opening unit comprises a pneumatic assembly, the pneumatic assembly is connected with an air source through an air path, the bead blasting filter rod forming device further comprises a pressure stabilizing distribution unit, and the pressure stabilizing distribution unit comprises an air pressure adjusting piece and an on-off control piece; the air pressure adjusting piece and the pneumatic assembly are arranged on the air path. The air pressure adjusting piece is used for adjusting air pressure in the air path. The on-off control piece is used for controlling on-off of gas in the gas path; the air pressure adjusting piece and the on-off control piece are integrally arranged on the pressure stabilizing distribution unit. The air pressure adjusting piece and the on-off control piece are integrally arranged in the pressure stabilizing distribution unit, and compared with an air pressure adjusting piece and an on-off control piece which are dispersedly arranged in a common filter stick forming device, the filter stick forming device is provided with the air pressure adjusting piece, the on-off control piece and an air path pipeline which are higher in integration level.

Description

Technical Field

[0001] This utility model belongs to the technical field of cigarette filter rod process equipment, specifically relating to a capsule filter rod forming device. Background Technology

[0002] Cigarette filters have a certain filtering effect on particulate matter in cigarette smoke, partially removing certain components such as tar and nicotine, reducing harmful substances in the smoke, and thus alleviating the conflict between smoking and health. The filter rod is the state of the filter tip before it is cut and shaped. Currently, cigarette filter rods produced worldwide are mainly made by applying plasticizers to cellulose acetate tow, molding it, and then rolling it with paper.

[0003] The filter rod forming device includes a filament supply unit, a filament opening unit, and a filament forming unit arranged according to the flow direction of the filament bundle. The main process of the filament opening unit involves stretching the acetate fiber web in length and width using a roller opening system and an air opening system to create a uniform filament bundle. This ensures that the tension of the filament bundle before entering the filament forming unit is relatively constant, guaranteeing uniform and stable filament filling in the filter rod. In the formation of menthol capsule filter rods, the stability requirements for filament opening are much higher than for ordinary filter rods because a space needs to be created in the center of the filament bundle to accommodate the capsule, and the filter rod needs to be squeezed to break the capsule when inhaling a menthol capsule cigarette. To ensure the forming stability of menthol capsule filter rods, the production speed is usually reduced to improve precision, leading to increased production costs. Utility Model Content

[0004] The purpose of this patent is to improve the generation speed and stability of the popping bead filter rod, and to solve this technical problem:

[0005] This patent provides a device for forming a bursting bead filter rod, including a filament loosening unit. The filament loosening unit includes a pneumatic component, which is connected to a gas source via an air passage. The device also includes a pressure stabilizing and distributing unit, which includes a pressure regulating component and an on / off control component. The pressure regulating component and the pneumatic component are disposed in the air passage. The pressure regulating component is used to regulate the gas pressure in the air passage. The on / off control component is used to control the gas flow in the air passage. The pressure regulating component and the on / off control component are integrated in the pressure stabilizing and distributing unit.

[0006] Furthermore, the pressure stabilizing and distribution unit includes a mounting bracket; the pressure regulating component and the on / off control component are connected to the mounting bracket.

[0007] Furthermore, the wire bundle opening unit includes a frame, and the voltage stabilizing and distributing unit also includes a hinge, which connects the frame and the mounting bracket.

[0008] Furthermore, the pressure stabilizing and distribution unit also includes a cable management board, which is used to organize the air passages connected to the pressure regulator and / or on / off control components.

[0009] Furthermore, the gas pressure range supplied by the pressure stabilizing and distribution unit is 0.2MPa~0.3MPa, 0.3MPa~0.5MPa, 0.5MPa~0.6MPa or 0.6MPa~0.8MPa, and the fluctuation range of the gas pressure supplied by the pressure stabilizing and distribution unit is less than or equal to 0.005MPa.

[0010] Furthermore, the air pressure regulating component is a proportional regulating valve.

[0011] Furthermore, the on / off control element is a valve island.

[0012] Furthermore, the on / off control device uses a communication protocol with a communication cycle of less than 1ms for electrical control.

[0013] Furthermore, the on / off control device uses the EtherCAT communication protocol for electrical control.

[0014] Furthermore, it also includes a bead-planting unit, which includes a pneumatic component connected to an air source via an air passage.

[0015] The beneficial effects of this patent are as follows:

[0016] This patent integrates the pressure regulator and on / off control components into a pressure stabilizing and distribution unit. Compared to the dispersed pressure regulators and on / off control components in ordinary filter rod forming devices, this patent features a higher degree of integration of pressure regulators, on / off control components, and air pipelines. Wiring is simplified, the joints of the pressure regulator are not exposed, and malfunctions are reduced. The centralized air pipeline is more aesthetically pleasing, better meets process requirements, and facilitates the maintenance of the pressure regulator and air pipeline.

[0017] This patent facilitates stable air pressure supply and air pressure regulation of pneumatic components, thereby reducing pressure fluctuations in the air path, making the opening and closing of the filament bundle more stable, controlling and adjusting speed faster, and achieving high production precision, thus making the suction resistance of the popping bead filter rod more stable.

[0018] This patented technology makes installation and maintenance more convenient and saves space. Attached Figure Description

[0019] The above description of this utility model and the following detailed embodiments will provide a better understanding when read in conjunction with the accompanying drawings. It should be noted that the drawings are merely examples of the claimed technical solution.

[0020] Figure 1 A three-dimensional schematic diagram of the voltage regulation and distribution unit;

[0021] Figure 2 An exploded view of the voltage stabilization and distribution unit;

[0022] Figure 3 A three-dimensional schematic diagram of the bead-forming device;

[0023] Figure 4 A three-dimensional schematic diagram of a filament unwinding unit;

[0024] Figure 4a A three-dimensional schematic diagram of the active output roller;

[0025] Figure 4b A three-dimensional schematic diagram of the first active opening roller and the second active opening roller;

[0026] Figure 4c This is a three-dimensional schematic diagram of the pre-tensioning roller pair;

[0027] Figure 5 This is a three-dimensional schematic diagram from the back side view of the wire bundle opening unit, in which the voltage stabilizing and distributing unit is rotated to almost fit against the frame;

[0028] Figure 6 This is a three-dimensional schematic diagram from the back side view of the wire bundle opening unit, in which the voltage stabilizing and distributing unit is rotated to be close to slightly away from the frame;

[0029] Figure 7 This is a three-dimensional schematic diagram from the back side view of the wire bundle opening unit, in which the voltage stabilizing and distributing unit is rotated to a position relatively far away from the frame;

[0030] Figure 8 The diagram shows a comparison of the gas supply performance of the pressure distribution unit of this patent with that of a traditional pressure distribution structure. Figure a shows the gas pressure gain of the traditional pressure distribution structure when switching from the gas supply state to the stable supply time period. Figure b shows the gas pressure gain of the pressure distribution unit 110 of this embodiment when switching from the gas supply state to the stable supply time period. Figure c shows the sensitivity of the traditional pressure distribution structure when it is stable at the set point. Figure d shows the sensitivity of the pressure distribution unit 110 of this embodiment when it is stable at the set point.

[0031] Explanation of reference numerals in the attached figures:

[0032] 100: Tow Opening Unit

[0033] 101: Output roller pair

[0034] 101a: Active output roller

[0035] 101a-1: Active output roller cylinder

[0036] 101b: Passive output roller

[0037] 102: First opening roller pair

[0038] 102a: First active opening roller

[0039] 102a-1: First active opening roller cylinder

[0040] 102b: First passive opening roller

[0041] 103: Second opening roller pair

[0042] 103a: Second active opening roller

[0043] 103a-1: Second Active Opening Roller Cylinder

[0044] 103b: Second passive opening roller

[0045] 104: Pre-tensioning roller pair

[0046] 104-1: Pre-tensioning roller to cylinder

[0047] 110: Voltage Stabilizer Unit

[0048] 111: Mounting bracket

[0049] 112: Hinge

[0050] 113: Air pressure regulating component

[0051] 114: On / off control component

[0052] 115: Cable Management Board

[0053] 116a: First connector

[0054] 116b: Second connector

[0055] 120: Rack

[0056] 200: Tow Forming Unit

[0057] 300: Tow Supply Unit Detailed Implementation

[0058] The detailed features and advantages of this utility model are described below in specific embodiments. The content is sufficient to enable any person skilled in the art to understand the technical content of this utility model and implement it accordingly. Based on the specification, claims and drawings disclosed in this specification, those skilled in the art can easily understand the related objectives and advantages of this utility model.

[0059] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0060] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element present. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not indicate the only possible implementation. The terms "upper," "lower," etc., indicating orientation or positional relationships are defined with reference to the coordinates of the accompanying drawings and are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this patent. The terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0061] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this patent belongs. The terminology used herein in the specification of this patent is for the purpose of describing particular embodiments only and is not intended to be limiting of this patent. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0062] The terminology and expressions used herein are for descriptive purposes only, and this invention should not be limited to these terms and expressions. The use of these terms and expressions does not mean the exclusion of any illustrative and descriptive equivalent features (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 considered to cover all such equivalents.

[0063] Similarly, it should be noted that although the present invention has been described with reference to the specific embodiments described above, those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and various equivalent changes or substitutions can be made without departing from the spirit of the present invention. Therefore, any changes or modifications to the above embodiments within the scope of the essential spirit of the present invention will fall within the scope of the claims of the present invention.

[0064] A proportional valve is a hydraulic valve that converts an input electrical signal into force or displacement proportionally, thereby continuously controlling parameters such as pressure and flow rate. A proportional valve consists of two parts: a DC proportional solenoid and a hydraulic valve. The hydraulic valve part is not much different from a general hydraulic valve, but the DC proportional solenoid is different from the solenoid used in a general solenoid valve. Using a proportional solenoid allows for displacement and suction output proportional to a given current. The core principle is to control the valve opening through electronic signals (such as current or voltage), thereby adjusting the gas flow rate or pressure. Its working process typically includes the following steps: 1. The proportional valve receives an electrical signal from the controller, which reflects the target flow rate or pressure value. 2. Based on the input signal, the actuator inside the proportional valve (such as an electromagnetic coil or stepper motor) drives the valve to open or close to a specified position. 3. By changing the valve opening, the gas flow rate or pressure is controlled to reach the set value. Its characteristics are: 1. It can achieve precise control of gas flow rate or pressure. 2. It can quickly adjust the valve opening to adapt to different needs. 3. It can maintain stable output over a wide operating range. 4. Many proportional valves can be integrated with control systems to support automated operation. Applications include industrial production, medical equipment, laboratory instruments, and household appliances, such as gas stoves for regulating gas flow.

[0065] A valve island is a control component composed of multiple electrically controlled valves. It integrates signal input / output and signal control, resembling a control island. Valve islands are a new generation of pneumatic-electric integrated control components, evolving from early valve islands with multi-pin interfaces to those with fieldbus interfaces, and subsequently to programmable and modular valve islands. The combination of valve island technology and fieldbus technology not only ensures easy wiring of electrically controlled valves but also greatly simplifies the debugging, performance testing, diagnosis, and maintenance of complex systems.

[0066] As an important component of cigarettes, the size and stability of the filter rod's draw resistance are key indicators for measuring the quality of the filter rod, ultimately affecting the smoking experience and filtration effect of the cigarette.

[0067] Example

[0068] refer to Figure 3The capsule filter rod forming device includes a fiber supply unit 300, a fiber opening unit 100, and a fiber forming unit 200 arranged according to the fiber flow direction. The fiber opening unit 100's main process involves stretching the acetate fiber web in length and width using a roller opening system and an air opening system to create a uniform fiber web. This ensures that the tension of the fiber bundle before entering the fiber forming unit 200 is relatively constant, guaranteeing uniform and stable fiber filling in the filter rod. During the capsule filter rod forming process, because a space needs to be created in the center of the fiber bundle to accommodate the capsule, and because the filter rod needs to be squeezed to break the capsule when inhaling a capsule cigarette, the stability requirements for fiber opening in capsule filter rod forming are much higher than for ordinary filter rods. To ensure the forming stability of capsule filter rods, the production speed is usually reduced to improve precision.

[0069] refer to Figure 4 as well as Figure 4a , 4b And 4c, the filament opening unit 100 includes an output roller pair 101, a first opening roller pair 102, a second opening roller pair 103, and a pre-tensioning roller pair 104.

[0070] The output roller pair 101 consists of an active output roller 101a and a passive output roller 101b. Figure 4a A pressure roller mechanism driven by a conveyor roller cylinder 101b-1 is shown. The pressure roller mechanism controls the active output roller 101a to move closer to or further away from the passive output roller 101b to adjust the pressure between the active output roller 101a and the passive output roller 101b.

[0071] The first loosening roller pair 102 consists of a first active loosening roller 102a and a first passive loosening roller 102b, and the second loosening roller pair 103 consists of a second active loosening roller 103a and a second passive loosening roller 103b. Figure 4b The structure of the first active loosening roller 102a and the second active loosening roller 103a is shown. Each of them includes a first active loosening roller cylinder 102a-1 and a second active loosening roller cylinder 103a-1 that drive the first active loosening roller 102a and the second active loosening roller 103a to reciprocate.

[0072] Figure 4c The structure of the pretensioning roller pair 104 is shown, which includes a pretensioning roller pair cylinder 104-1 for adjusting the pressure between the roller pairs.

[0073] That is, the output roller pair 101, the first loosening roller pair 102, the second loosening roller pair 103, and the pre-tensioning roller pair 104 are all pneumatic components.

[0074] The degree of opening and closing of the filament bundle is affected by the uniformity of the rotational speed of the output roller pair 101, the first opening roller pair 102, the second opening roller pair 103, and the pre-tension roller pair 104. Therefore, it is necessary to maintain a stable air supply to the cylinders in the output roller pair 101, the first opening roller pair 102, the second opening roller pair 103, and the pre-tension roller pair 104 during operation.

[0075] Meanwhile, as the processing conditions (tow bundle height, tow compaction, etc.) constantly change throughout the tow extraction process, the tow fluctuates, causing continuous changes in the tension it experiences. The included angle also changes constantly as it enters the tow forming unit 200, and different tow materials also affect the tension. To ensure forming efficiency, the tow opening unit 100 needs to continuously adjust the opening degree according to the tow state. This includes adjusting the rotational speeds of the output roller pair 101, the first opening roller pair 102, the second opening roller pair 103, and the pre-tensioning roller pair 104; the pressure between the active output roller 101a and the passive output roller 101b; and the inter-roller pressure of the pre-tensioning roller pair 104. Furthermore, the first opening roller pair 102 and the second opening roller pair 103 reciprocate, requiring a high speed for cylinder state switching.

[0076] refer to Figure 5 This embodiment includes a filament unwinding unit 100, which includes a pressure stabilizing and distributing unit 110; a pressure regulating component 113 and an on / off control component 114 are integrated into the pressure stabilizing and distributing unit 110. (Reference) Figure 2 It also includes a filament feeding unit 300 for supplying filaments to the filament opening unit 100 and a filament forming unit 200 for forming the filaments into filter rods.

[0077] The applicant discovered that the key to making the opening of the filament as stable as possible lies in stabilizing the rotational speeds of the output roller pair 101, the first opening roller pair 102, the second opening roller pair 103, and the pre-tension roller pair 104 and being able to quickly adjust the rotational speeds in response to changes in the filament state, as well as the pressure between the active output roller 101a and the passive output roller 101b; and the inter-roller pressure of the pre-tension roller pair 104 being quickly adjusted in response to changes in the filament state.

[0078] The cylinders that rotate the output roller pair 101, the first loosening roller pair 102, and the second loosening roller pair 103, as well as those that adjust the pressure between the first active loosening roller 102a and the first passive loosening roller 102b in the first loosening roller pair 102, and between the second active loosening roller 103a and the second passive loosening roller 103b in the second loosening roller pair 103, are all pneumatic components. This means that it is necessary to ensure the stability and rapid response of the air supply pressure of each pneumatic component, which places high demands on the stable supply and rapid response of air pressure.

[0079] like Figures 1-2This patent integrates the pressure regulator 113 and the on / off control component 114 into a pressure stabilizing and distributing unit 110. Specifically, the pressure regulator 113 is mounted on a mounting frame 111 with several mounting beams, and the on / off control component 114 is mounted on the mounting frame 111 via several connecting parts. Compared to the dispersed pressure regulator 113 and on / off control component 114 in ordinary filter rod forming devices, this patent features a higher degree of integration of the pressure regulator 113 and on / off control component 114, resulting in higher integration of the air path control components and simplified wiring. It avoids exposed joints of the pressure regulator 113, thereby reducing the occurrence of malfunctions. The centralized air path piping is more aesthetically pleasing, better meets process requirements, and facilitates the maintenance of the pressure regulator 113 and air path piping. It also promotes stable air pressure supply and facilitates the adjustment of the air pressure supplied to pneumatic components. Therefore, this patent increases the production speed of the pod filter rod.

[0080] Among them, the air pressure regulating component 113 is a proportional valve. The gas supplied by the proportional valve has high stability compared to the gas supplied by the ordinary solenoid valve, reducing pressure fluctuations in the air path and making the opening and unwinding of the filament bundle more stable.

[0081] The on / off control element 114 is a valve island, which has a high response speed when controlling gas pressure. The valve island uses the EtherCAT bus protocol to achieve electrical control with a communication cycle of less than 1ms.

[0082] The voltage stabilizing and distributing unit 110 also includes a hinge 112, through which the voltage stabilizing and distributing unit 110 is connected to the wire bundle opening unit 100. Specifically, the wire bundle opening unit 100 includes a frame 120, and a mounting bracket 111 is hinged to the frame 120 via the hinge 112. A first connecting member 116a is also provided on the side of the mounting bracket 111 away from the hinge 112, and a second connecting member 116b is also provided on the frame 120 for connecting to the first connecting member 116a. Connecting the first connecting member 116a and the second connecting member 116b allows the voltage stabilizing and distributing unit 110 to be stably fixed to the frame 120.

[0083] refer to Figure 5-7 The pressure stabilizing and distributing unit 110 is located on the back of the fiber bundle opening unit 100. During normal operation of the bead filter rod forming device, the pressure stabilizing and distributing unit 110 and the fiber bundle opening unit 100 are closely attached and connected to the first connecting piece 116a and the second connecting piece 116b. This maintains the stability of the pressure stabilizing and distributing unit 110, reduces vibration, saves space, and shields the interface of the air pressure regulator 113, reducing malfunctions. When installation or maintenance is required, the pressure stabilizing and distributing unit 110 rotates around the hinge 112 to expose the interface of the air pressure regulator 113 on its back, facilitating installation and maintenance.

[0084] Preferably, the pressure stabilizing and distribution unit 110 further includes a cable management plate 113 for uniformly storing gas pipelines and further centralizing the gas pipelines.

[0085] The bead filter rod forming device typically also includes a wire feeder, a hot glue system, a cold glue system, and a bead planting unit. These components may also include pneumatic components and require a stable and fast-responding air pressure supply. Therefore, it is preferred to supply air through the pressure stabilizing and distribution unit 110.

[0086] Comparative Example

[0087] In traditional filter rod forming devices, the solenoid valves controlling the air paths of the opening roller pair and the pre-tensioning roller pair are located inside the opening panel box (equivalent to the panel box of the fiber tow opening unit 100 of this patent), the solenoid valve controlling the air path of the cross arm is suspended on the opening machine body (equivalent to the machine body of the fiber tow opening unit 100 of this patent), and the solenoid valves controlling the air paths of the fiber feeder, hot glue system, cold glue system and bead planting unit are installed on the forming machine body (equivalent to the machine body of the fiber tow forming unit 200 of this patent). These components are relatively dispersed, and the pipelines are long, making adjustment and maintenance inconvenient.

[0088] Industrial application

[0089] The beaded filter rod forming device of this patent has a stable gas supply, and the pressure stabilizing and distribution unit 110 of this patent can be used to supply gas from external sources with pressures of 0.2MPa~0.3MPa, 0.3MPa~0.5MPa, 0.5MPa~0.6MPa, 0.6MPa~0.8MPa, 0.8MPa~1MPa, 1MPa~2MPa, and 2MPa~3MPa.

[0090] Specifically, in this embodiment, under the pressure adjustment of an external air supply source of 0.8 MPa, air is supplied to all pneumatic units on the pod-forming device through the pressure stabilizing and distributing unit 110. These pneumatic units include an output roller pair 101, a first opening roller pair 102, a second opening roller pair 103, and a pre-tensioning roller pair 104. The pod-forming device of this embodiment can synchronously control the servo filament speed at 300 m / min, resulting in fast control and adjustment speed, high production precision, and stable suction resistance of the pod-forming filter rods.

[0091] like Figure 8Figure a shows the pressure gain of a conventional pressure distribution structure when switching from a supply state to a stable supply period. Figure b shows the pressure gain of the pressure-stabilized distribution unit 110 in this embodiment when switching from a supply state to a stable supply period. It can be seen that the pressure gain in this embodiment changes slowly when it reaches the vicinity of the set point, and the occurrence of exceeding the set point range is significantly reduced. Figure c shows the sensitivity of the conventional pressure distribution structure when it is stable at the set point. Figure d shows the sensitivity of the pressure-stabilized distribution unit 110 in this embodiment when it is stable at the set point. It can be seen that the pressure fluctuation in this embodiment under stable conditions is less than 0.005 MPa.

[0092] This patent specification uses directional terms such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom" to describe various example structural parts and components of this patent. However, the use of these terms is merely for illustrative purposes and is based on the orientation of the examples shown in the accompanying drawings. Since the embodiments disclosed in this patent can be arranged in different orientations, these directional terms are for illustrative purposes only and should not be considered as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or the same as the direction of gravity.

[0093] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this patent will not describe the various possible combinations separately.

[0094] Furthermore, various implementations of this patent can be combined in any way, and as long as they do not violate the spirit of this patent, they should also be regarded as the content disclosed in this patent.

Claims

1. A device for forming a bursting bead filter rod, comprising a filament loosening unit (100), wherein the filament loosening unit (100) includes a pneumatic component, the pneumatic component being connected to an air source via an air passage, characterized in that, The popping bead filter rod forming device also includes a pressure stabilizing and distributing unit (110), which includes a pressure regulating component (113) and an on / off control component (114); The pressure regulator (113) and the pneumatic assembly are disposed in the air passage. The pressure regulator (113) is used to regulate the gas pressure in the air passage. The on / off control component (114) is used to control the on / off of the gas in the air passage. The pressure regulator (113) and the on / off control (114) are integrated in the pressure stabilizing and distribution unit (110).

2. The beaded filter rod forming device according to claim 1, characterized in that, The pressure stabilizing and distribution unit (110) includes a mounting bracket (111); the air pressure regulator (113) and the on / off control component (114) are connected to the mounting bracket (111).

3. The beaded filter rod forming device according to claim 2, characterized in that, The wire bundle opening unit (100) includes a frame (120), and the voltage stabilizing and distributing unit (110) further includes a hinge (112), which connects the frame (120) and the mounting bracket (111).

4. The beaded filter rod forming device according to claim 2, characterized in that, The pressure stabilizing and distribution unit (110) also includes a cable tray, which is used to organize the air passages connected to the pressure regulator (113) and / or the on / off control (114).

5. The beaded filter rod forming device according to claim 1, characterized in that, The pressure range supplied by the pressure stabilizing distribution unit (110) is 0.2MPa~0.3MPa, 0.3MPa~0.5MPa, 0.5MPa~0.6MPa or 0.6MPa~0.8MPa, and the fluctuation range of the pressure supplied by the pressure stabilizing distribution unit is less than or equal to 0.005MPa.

6. The beaded filter rod forming device according to claim 1, characterized in that, The pressure regulating component (113) is a proportional regulating valve.

7. The beaded filter rod forming device according to claim 1, characterized in that, The on / off control element (114) is a valve island.

8. The beaded filter rod forming device according to claim 7, characterized in that, The on / off control unit (114) is electrically controlled using a communication protocol with a communication cycle of less than 1ms.

9. The beaded filter rod forming device according to claim 7, characterized in that, The on / off control unit (114) is electrically controlled using the EtherCAT communication protocol.

10. The beaded filter rod forming device according to claim 1, characterized in that, It also includes a bead-planting unit, which includes the pneumatic component, and the pneumatic component is connected to the air source through the air passage.

Images