Twisting and connecting device and twisting and connecting method

Abstract

The invention relates to a twisting and connecting device and a twisting and connecting method, the twisting and connecting device is used for twisting and connecting a composite section in an aerosol generating product, a first twisting and connecting platform is used for being covered by twisting and connecting cloth, and tipping paper for twisting and connecting is placed on the covered twisting and connecting cloth; the first twisting and connecting platform and the second twisting and connecting platform can move in the first direction in the direction close to each other or away from each other; the reel is used for winding or loosening the twisting and connecting cloth; the twisting and connecting cloth is continuously spread on the first twisting and connecting platform and the second twisting and connecting platform in the first direction, one end, in the first direction, of the twisting and connecting cloth is fixed, the other end of the twisting and connecting cloth is wound on the reel, and the twisting and connecting cloth is used for placing a composite section; the first twisting and connecting platform and the second twisting and connecting platform move in the first direction in the relative approaching direction, the twisting and connecting cloth is driven to wrap the composite section, and the twisting and connecting cloth drives the composite section to roll towards the tipping paper to complete twisting and connecting. The device can finish twisting connection of composite sections with different diameters, and the adaptability of the device to twisting connection of different composite sections is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of tobacco processing equipment, and particularly relates to a compound section splicing device in an aerosol generating article. Background Art

[0002] In recent years, with the development of technology and the increasing attention of consumers to new things, new cigarette products have emerged in an endless stream, and the requirements for cigarette filter rods have become higher and higher. The flexible design requirements and the pursuit of the actual effect of preparing multi-component composite filter rods have made the demand for filter rod composite equipment more urgent. Developing a filter rod forming device applicable to various diameter specifications and capable of realizing the composite of base rods with different lengths according to design requirements to solve the above problems, but the current filter rod forming devices on the market are basically for production, lacking convenient devices suitable for laboratory tests.

[0003] Currently, the splicing devices used on the market mainly use a splicing drum and a splice plate device to splice and form filter rods or cigarettes.

[0004] For example, Patent CN215013547U discloses a new type of splice plate and a splicing device, including a splice plate body, the splice plate body having a splicing surface, characterized in that the splicing surface is arc-shaped, and the circumference where the splicing surface is located and the circumference where the cigarette rolling wheel is located are concentric circles; and, the splicing surface satisfies the following relationship: L≥1.5C and β<α, where L is the arc length of the splicing surface, C is the perimeter of the cigarette group cross-section, α is the arc angle of the cigarette rolling wheel between two adjacent cigarette grooves, and β is the arc angle of the splicing surface.

[0005] For another example, Patent CN209284307U discloses a splicing component for cigarettes or filter rods, assembled on a splicer and used in combination with a splicing wheel, having a splice plate body and a scraper movably connected to the lower end thereof, the splice plate body having a middle section and left and right sections symmetrically arranged, characterized in that: the surfaces of the left and right sections respectively have grooves A lower than the surface of the middle section, and flexible body gaskets are provided in the grooves A.

[0006] As Figure 1 shown, the prior art uses a form of cooperation between a splicing wheel 01 and a splice plate 02 to splice a filter rod 03. Since both the splicing wheel 01 and the splice plate 02 are fixed mechanical structures, when it is necessary to change the diameter of the filter rod 03, the entire device needs to be disassembled or replaced with another device, resulting in a relatively high replacement cost and inconvenience. While the present application uses a form of splicing cloth to replace the splicing wheel 01 and the splice plate 02, which can better adapt to the splicing of the composite section of aerosol generating articles with different diameters.

[0007] Existing splicing devices all adopt the form of splicing drums and splicing plates. These devices are mainly used in production equipment for splicing cigarettes and composite filter rods. The equipment is relatively complex and bulky. When dealing with samples of different lengths, diameters, and tipping paper widths, a large number of components need to be adjusted to fit, and in some cases, even the splicing structure design needs to be significantly adjusted to apply to the trial production of different specifications of samples. For splicing a filter rod of a specific diameter specification, a corresponding specification part needs to be equipped. For laboratory specimens, the above-mentioned splicing equipment is not only expensive but also has a long equipment adjustment cycle when switching cigarette specifications, which is not conducive to flexible trial sampling. Summary of the Invention

[0008] The purpose of the present invention is to provide a splicing device to solve the above technical problems.

[0009] To solve the above technical problems, an embodiment of the present invention discloses a splicing device for splicing a composite section in an aerosol-generating article, including a splicing unit. The splicing unit includes a first splicing platform, a second splicing platform, a reel, and a splicing cloth. Among them, the first splicing platform is used to be covered by the splicing cloth, and tipping paper for splicing is placed on the covered splicing cloth; the second splicing platform, the first splicing platform and the second splicing platform can move in a first direction relatively closer or farther away; the reel is used to wind or unwind the splicing cloth; the splicing cloth is continuously spread along the first direction on the first splicing platform and the second splicing platform. One end of the splicing cloth along the first direction is fixed, and the other end is wound around the reel. The splicing cloth is used to place the composite section; at the position to be spliced, the second splicing platform is offset or spaced relative to the first splicing platform in the first direction and is higher than the first splicing platform in the second direction. By moving the first splicing platform and the second splicing platform relatively closer in the first direction, the splicing cloth is driven to wrap the composite section, and the composite section is driven by the splicing cloth to roll towards the tipping paper to complete splicing, where the first direction and the second direction are perpendicular.

[0010] By adopting the above technical solution, it is possible to match the splicing and forming of composite sections in aerosol-generating articles of different diameters, realize the splicing of the tipping paper to the composite section, efficiently complete the forming of composite sections of different diameters, flexibly switch specifications, and better meet the special needs of laboratory specimens. Compared with the arc surface splicing method in traditional splicing equipment, the technical solution of this application uses the method of splicing with a splicing cloth roll. Without replacing the splicing components, it can complete the splicing of composite sections of different diameters, avoiding the disadvantage of the need for significant equipment adjustment when switching diameter specifications in the traditional method, and being more conducive to flexible sample trial production.

[0011] Optionally, the first splicing platform is a fixed platform, and the second splicing platform is a movable platform. The second splicing platform includes a movable flat plate and a splicing roller. The splicing roller is located at the splicing front end of the movable flat plate, parallel to the movable flat plate and perpendicular to the first direction. At the position to be spliced, the splicing cloth extends from the splicing rear end of the movable flat plate to the splicing front end, bypasses the splicing roller and then falls onto the first splicing platform along the second direction. By moving the movable flat plate and the splicing roller towards the first splicing platform along the first direction, the splicing cloth is driven to complete the splicing.

[0012] Optionally, at the position to be spliced, a composite section placement area is provided on the splicing cloth, and the composite section placement area is located between the splicing front end of the second splicing platform and the first splicing platform.

[0013] Optionally, the first splicing platform is parallel to the second splicing platform. At the position to be spliced, the splicing device further includes a first centering rod and a second centering rod oppositely arranged along the third direction. The third direction is parallel to the second splicing platform and perpendicular to the first direction. The first centering rod and the second centering rod are located in the composite section placement area and press on the splicing cloth along the third direction. The composite section is located between the first centering rod and the second centering rod along the third direction. The first centering rod and the second centering rod are used to close the composite section in the third direction.

[0014] Optionally, the distance between the first centering rod and the second centering rod in the third direction is adjustable.

[0015] Optionally, the first centering rod and the second centering rod can be moved into and out of the position to be spliced.

[0016] Optionally, when splicing, the first centering rod and the second centering rod can rotate.

[0017] Optionally, the positions of the first centering rod and the second centering rod in the second direction are adjustable.

[0018] To achieve the splicing preparation of composite sections of different lengths, only by adjusting the distance between the first centering rod and the second centering rod can the splicing of composite sections of different lengths be matched and adapted.

[0019] Optionally, the first splicing platform is parallel to the second splicing platform. At the position to be spliced, the second splicing platform is spaced from the first splicing platform in the first direction. The splicing device further includes a receiving groove extending along the third direction. The receiving groove is located below the composite section placement area along the second direction and is used to receive the splicing cloth located in the composite section placement area, where the third direction is parallel to the second splicing platform and perpendicular to the first direction.

[0020] Optionally, the first splicing platform has a first front end and a first rear end opposite to each other in the first direction. The first rear end is farther from the second splicing platform than the first front end in the first direction. The second splicing platform has a second front end and a second rear end opposite to each other in the first direction. The second rear end is farther from the first splicing platform than the second front end in the first direction. The reel is located at the second rear end, and one end of the splicing cloth is fixed to the first rear end.

[0021] Optionally, the first rear end of the first splicing platform has a slope, and the completed composite section slides down through the slope.

[0022] Optionally, a pressing block is provided at the first rear end for fixing one end of the splicing cloth near the first rear end.

[0023] Optionally, a negative pressure port is provided on the first splicing platform for adsorbing the tipping paper.

[0024] Optionally, the distance between the second splicing platform and the first splicing platform in the second direction is adjustable.

[0025] Optionally, the splicing device further includes a reel driving member for driving the reel to actively wind or unwind the splicing cloth.

[0026] Optionally, the material of the splicing cloth is polytetrafluoroethylene.

[0027] Optionally, there are multiple splicing units, which are evenly arranged at intervals in the circumferential direction.

[0028] Optionally, the splicing device has multiple stations, and there are successively arranged a composite section feeding station, a tipping paper feeding station, a gluing station, and a splicing and forming station in the circumferential direction. The composite section feeding station is used for the step of placing the composite section on the splicing cloth. The tipping paper feeding station is used for the step of placing the tipping paper on the first splicing platform. The gluing station is used for the step of gluing the tipping paper. The splicing and forming station is used for the step of splicing the composite section and the tipping paper. The number of stations is the same as the number of splicing units, and the arrangement positions of the stations correspond to the arrangement positions of the splicing units. Multiple splicing units can rotate in the circumferential direction by a set rotation angle. Each time it rotates, the splicing unit can rotate from the station of the previous step to the station of the next step.

[0029] Optionally, the number of stations is 4, which are respectively the composite section feeding station, the tipping paper feeding station, the gluing station, and the splicing and forming station, and are arranged at intervals at a 90-degree angle in the circumferential direction. The number of splicing units is 4, and they are arranged at intervals at a 90-degree angle in the circumferential direction.

[0030] Optionally, the splicing device further includes a rotating shaft and a rotating disk. The splicing units are arranged on the rotating disk, and the rotation of the rotating shaft drives the rotation of the rotating disk, thereby driving the splicing units to rotate around the rotating shaft in the circumferential direction.

[0031] Optionally, the splicing device further includes a first slip ring and a second slip ring. The first slip ring is used to fix the rotor circuit, and the second slip ring is used to fix the stator circuit. The rotor circuit rotates with the rotation of the rotating shaft, while the stator circuit does not rotate with the rotation of the rotating shaft.

[0032] Optionally, the first splicing platform is a fixed platform, and the second splicing platform is a moving platform.

[0033] An embodiment of the present invention also discloses a splicing method. The splicing method uses the above splicing device to splice the composite section in the aerosol generating article, including the following steps: placing the composite section on the splicing cloth, and placing the tipping paper on the first splicing platform; the second splicing platform is offset or spaced from the first splicing platform in the first direction and is higher than the first splicing platform in the second direction. Move the first splicing platform and the second splicing platform in a relatively close direction along the first direction, drive the splicing cloth to wrap the composite section and move, and then the splicing cloth drives the composite section to roll towards the tipping paper to complete the splicing.

[0034] By adopting the above technical solution, the splicing of composite sections with different diameters can be completed, and the available range of the device can be improved.

[0035] Optionally, a composite section placement area is provided on the splicing cloth. The composite section placement area is located between the splicing front end of the second splicing platform and the first splicing platform. The first splicing platform is parallel to the second splicing platform. The splicing device further includes a first centering rod and a second centering rod. The method includes: at the position to be spliced, the first centering rod and the second centering rod are arranged opposite to each other along the third direction and are located in the composite section placement area, press on the splicing cloth along the third direction, place the composite section between the first centering rod and the second centering rod along the third direction, and the ends of the first centering rod and the second centering rod are in contact with the composite section to close the composite section. Here, the third direction is parallel to the second splicing platform and perpendicular to the first direction.

[0036] Optionally, adjust the distance between the first centering rod and the second centering rod in the third direction to match the length of the composite section.

[0037] Optionally, the first centering rod and the second centering rod can be withdrawn from the splicing cloth.

[0038] Optionally, adjust the distance between the second splicing platform and the first splicing platform in the second direction to match the diameter of the composite section.

[0039] Optionally, after splicing is completed, wind up the splicing cloth to make the splicing cloth taut, and the splicing cloth pushes out the spliced composite section through the tensioning effect.

[0040] Optionally, there are multiple splicing units, which are evenly arranged at intervals along the circumferential direction. The splicing device has multiple stations, and there are successively arranged a composite section feeding station, a tipping paper feeding station, a gluing station, and a splicing and forming station along the circumferential direction. The composite section feeding station is used for the step of placing the composite section on the splicing cloth. The tipping paper feeding station is used for the step of placing the tipping paper on the first splicing platform. The gluing station is used for the step of gluing the tipping paper. The splicing and forming station is used for the step of splicing the composite section and the tipping paper. The number of stations is the same as the number of splicing units, and the arrangement positions of the stations correspond to the arrangement positions of the splicing units. The splicing method includes: driving the multiple splicing units to rotate multiple times along the circumferential direction by a set rotation angle. Each time of rotation, the splicing unit can rotate from the station of the previous step to the station of the next step. Description of the Drawings

[0041] Figure 1 Showing a schematic diagram of a splicing wheel and a splicing plate in the prior art;

[0042] Figure 2 Showing a schematic structural diagram of a splicing unit according to an embodiment of the present invention;

[0043] Figure 3 Showing a front sectional view of a splicing unit according to an embodiment of the present invention (section along the first direction);

[0044] Figure 4 Showing a schematic structural diagram of a centering manipulator according to an embodiment of the present invention;

[0045] Figure 5 Showing a schematic structural diagram of a splicing device according to an embodiment of the present invention;

[0046] Figure 6 Showing a schematic structural diagram of a splicing device according to an embodiment of the present invention with the splicing unit omitted;

[0047] Figure 7 Showing a sectional view of a splicing device according to an embodiment of the present invention with the splicing unit omitted;

[0048] Figure 8 Showing a top view of a splicing unit according to an embodiment of the present invention;

[0049] Figure 9 Showing a schematic diagram of the initial state of a splicing unit according to an embodiment of the present invention;

[0050] Figure 10 Showing a schematic diagram of the initial state of a splicing device according to an embodiment of the present invention;

[0051] Figure 11 Showing a schematic diagram of the state where the centering rod of a splicing unit according to an embodiment of the present invention is pressed down;

[0052] Figure 12 Schematic diagram showing the downward pressure state of the centering rod of a splicing device according to an embodiment of the present invention;

[0053] Figure 13 Schematic diagram showing the placement composite section state of a splicing unit according to an embodiment of the present invention;

[0054] Figure 14 Schematic diagram showing the placement composite section state of a splicing device according to an embodiment of the present invention;

[0055] Figure 15 Schematic diagram showing the splicing movement state of a splicing unit according to an embodiment of the present invention;

[0056] Figure 16 Schematic diagram showing the splicing movement state of a splicing device according to an embodiment of the present invention;

[0057] Figure 17 Schematic diagram showing the centering rod withdrawal state of a splicing unit according to an embodiment of the present invention;

[0058] Figure 18 Schematic diagram showing the centering rod withdrawal state of a splicing device according to an embodiment of the present invention;

[0059] Figure 19 Schematic diagram showing the placement filter paper state of a splicing unit according to an embodiment of the present invention;

[0060] Figure 20 Schematic diagram showing the placement filter paper state of a splicing device according to an embodiment of the present invention;

[0061] Figure 21 Schematic diagram showing the gluing state of a splicing unit according to an embodiment of the present invention;

[0062] Figure 22 Schematic diagram showing the gluing state of a splicing device according to an embodiment of the present invention;

[0063] Figure 23 Schematic diagram showing the splicing forming state of a splicing unit according to an embodiment of the present invention;

[0064] Figure 24 Schematic diagram showing the splicing forming state of a splicing device according to an embodiment of the present invention.

[0065] (Symbol description)

[0066] 01 Splicing wheel;

[0067] 02 Splicing plate;

[0068] 03 Filter rod;

[0069] 04 First splicing unit;

[0070] 05 Composite section;

[0071] 06 Filter tip paper;

[0072] 1 Twisting and splicing unit;

[0073] 11 First twisting and splicing platform;

[0074] 111 First front end;

[0075] 112 First rear end;

[0076] 12 Second twisting and splicing platform;

[0077] 121 Moving flat plate;

[0078] 122 Twisting and splicing roller;

[0079] 123 Second front end;

[0080] 124 Second rear end;

[0081] 125 Lead screw pushing block;

[0082] 13 Reel;

[0083] 14 Twisting and splicing cloth;

[0084] 151 Composite section placement area;

[0085] 152 Receiving groove;

[0086] 16 Ramp;

[0087] 17 Pressing block;

[0088] 18 Negative pressure port;

[0089] 181 Negative pressure sealing plate;

[0090] 191 Twisting and splicing translation motor;

[0091] 192 Twisting and splicing cloth winding motor;

[0092] 10 Twisting and splicing mounting base plate;

[0093] 101 Heating module;

[0094] 102 Temperature control box;

[0095] 2 Centering manipulator;

[0096] 21 First centering rod;

[0097] 22 Second centering rod;

[0098] 23 Centering X-axis motor;

[0099] 231 Centering motor;

[0100] 24 Lifting shaft;

[0101] 25 Servo module;

[0102] 27 Synchronous belt mechanism;

[0103] 28 Centering cylinder;

[0104] 29 First centering rod rotating seat;

[0105] 20 Second centering rod rotating seat;

[0106] 3-station

[0107] 31 Composite section loading station;

[0108] 32 Filter rod loading station;

[0109] 33 Gluing station;

[0110] 34 Twisting and joining forming station;

[0111] 41 Air duct connecting sleeve;

[0112] 42 Rotating shaft;

[0113] 43 Rotating disk;

[0114] 44 Slip ring;

[0115] 441 First slip ring;

[0116] 442 Second slip ring;

[0117] 45 Negative pressure device;

[0118] 461 Turntable rotation motor

[0119] 462 Turntable rotation motor mounting seat;

[0120] 471 Blowing transition pipe;

[0121] 472 Twisting and joining overwind pipe;

[0122] 481 Twisting and joining station bearing sleeve;

[0123] 483 Twisting and joining rotating bearing spacer;

[0124] 484 Twisting and joining rotating bearing compression cover. Detailed implementation method

[0125] The following specific embodiments illustrate the implementation manners of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention will be introduced in conjunction with preferred embodiments, this does not mean that the features of this invention are limited to this implementation manner. On the contrary, the purpose of introducing the invention in conjunction with the implementation manner is to cover other alternatives or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, many specific details will be included in the following description. The present invention can also be implemented without using these details. In addition, in order to avoid confusing or obscuring the key points of the present invention, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0126] The term "composite segment in an aerosol-generating article" is used herein to describe the filter rod segment and the smoke-generating unit segment to be spliced of an aerosol-generating article.

[0127] 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.

[0128] To make the objectives, technical solutions, and advantages of the present invention clearer, the implementation manners of the present invention will be further described in detail below with reference to the drawings.

[0129] This embodiment provides a splicing device for splicing a composite segment in an aerosol-generating article, including a splicing unit 1. The splicing unit 1 includes a first splicing platform 11, a second splicing platform 12, a reel 13, and a splicing cloth 14. Among them, the first splicing platform 11 is used to be covered by the splicing cloth 14, and tipping paper for splicing is placed on the covered splicing cloth 14; the second splicing platform 12, the first splicing platform 11 and the second splicing platform 12 can move in a first direction relatively closer or farther away; the reel 13 is used to wind or unwind the splicing cloth; the splicing cloth 14 is continuously spread on the first splicing platform 11 and the second splicing platform 12 along the first direction. One end of the splicing cloth 14 along the first direction is fixed, and the other end is wound around the reel 13. The splicing cloth 14 is used to place the composite segment; at the position to be spliced, the second splicing platform 12 is offset or spaced relative to the first splicing platform 11 in the first direction, and is higher than the first splicing platform 11 in the second direction. By moving the first splicing platform 11 and the second splicing platform 12 in a relatively closer direction along the first direction, the splicing cloth 14 is driven to wrap the composite segment, and the composite segment is driven by the splicing cloth 14 to roll towards the tipping paper to complete the splicing, where the first direction and the second direction are perpendicular.

[0130] By adopting the above technical solution, it is possible to match the splicing and forming of the composite section in aerosol generating articles with different diameters, realize the splicing of the composite section and the wrapping of the forming paper, and improve the adaptability of the device to the splicing of composite sections with different diameters.

[0131] To prepare composite section samples with different diameter specifications, different tension forces of the splicing cloth 14 can be designed according to different diameters, so as to better meet the splicing requirements of composite section samples with different diameters.

[0132] Among them, the composite section is a multi-section independent and separated component. For example, it includes multiple filter rods with different materials and functions for preparing composite filter rods. The composite section can also be a combination of a filter rod and a smoking section for splicing to form a cigarette. The composite section can also be a combination of a filter rod, a support section, and a cooling section. Before splicing, the arranged composite sections are placed in the composite section placement area of the splicing cloth by the composite section loading manipulator according to the set order. Through splicing, the tipping paper wraps the multi-section independent composite sections and rolls them into a complete composite filter rod or cigarette.

[0133] The splicing cloth 14 is made of a flexible material. For example, the material of the splicing cloth 14 can be polytetrafluoroethylene, specifically polytetrafluoroethylene insulating cloth. Since the splicing cloth 14 is a flexible and soft component, it can adapt to wrapping composite sections with different diameters. When the second splicing platform 12 moves, it drives the splicing cloth 14 to wrap the composite section and move, so that the forming paper wraps the composite section and completes the splicing. The splicing cloth is a flexible and soft cloth, which has stronger adjustability and adaptability compared with a rigid splicing wheel.

[0134] Furthermore, by adjusting the tension of the splicing cloth 14, it is possible to match and adapt to the splicing of composite sections with different diameters. When it is necessary to splice a composite section with a relatively small diameter, the tension of the splicing cloth 14 is increased. When it is necessary to splice a composite section with a relatively large diameter, the tension of the splicing cloth 14 is decreased. During the splicing process, after the composite section loading manipulator places the composite section into the receiving groove 152 or the composite section placement area 151 of the splicing unit 1, and the first centering rod 21 and the second centering rod 22 withdraw from the receiving groove 152, the reel motor can control the splicing cloth 14 to maintain a tensioned state through torque, and the tension can be adjusted at this time. During the splicing process, the splicing cloth 14 closely adheres to the composite section. When it is necessary to splice a composite section with a small diameter, the tension is adjusted to increase. On the contrary, when it is necessary to splice a composite section with a larger diameter, the tension of the splicing cloth 14 is decreased. Thus, without changing the mechanical structure and disassembling and assembling the mechanical structure of the splicing device, the adaptive splicing of composite sections with different diameters can be realized. Furthermore, since the composite section is wrapped by the splicing cloth for splicing, it can also adapt to the splicing of composite sections with different lengths.

[0135] Among them, the first direction can be the horizontal direction. Correspondingly, the second direction is the vertical direction. For example, the first direction is Figure 2 、 Figure 3 and Figure 8in the x direction, the second direction is Figure 2 、 Figure 3 and Figure 4 the z direction.

[0136] As Figure 2 shown, in one embodiment, the first splicing platform 11 is a fixed platform, the second splicing platform 12 is a movable platform. The second splicing platform 12 includes a movable flat plate 121 and a splicing roller 122. The splicing roller 122 is located at the splicing front end of the movable flat plate 121, parallel to the movable flat plate 121 and perpendicular to the first direction. At the position to be spliced, the splicing cloth 14 extends from the splicing rear end of the movable flat plate to the splicing front end, bypasses the splicing roller 122 and then falls onto the first splicing platform 11 along the second direction. By moving the movable flat plate 121 and the splicing roller 122 towards the first splicing platform 11 along the first direction, the splicing cloth 14 is driven to complete splicing. Among them, the first splicing platform 11 and the second splicing platform 12 are parallel to the first direction and the third direction. Further, the first splicing platform 11 and the second splicing platform 12 are parallel to the horizontal plane. The second front end 123 is the splicing front end of the above-mentioned movable flat plate 121. The splicing roller 122 extends along the third direction. Among them, the third direction is Figure 2 、 Figure 4 and Figure 8 the y direction in. The C direction is Figure 3 、 Figure 8 、 Figure 9 、 Figure 11 、 Figure 13 、 Figure 15 、 Figure 17 、 Figure 19 、 Figure 21 and Figure 23 the C direction in. By using the negative pressure port 18 on the first splicing platform 11, the tipping paper 06 is adsorbed and fixed on the first splicing platform 11. The tipping paper 06 is placed on the first splicing platform 11, and the tipping paper 06 is coated with glue through the gluing mechanism. After that, driven by the motor, the second splicing platform 12 and the first splicing platform 11 move relatively in a close approach. Specifically, the second splicing platform 12 moves towards the first splicing platform 11 along the C direction, and the first splicing platform 11 remains stationary, thereby driving the splicing cloth 14 to move. The splicing cloth 14 is in a folded state. Under the pulling of the second splicing platform 12, the upper half of the splicing cloth 14 is driven to cover the splicing cloth 14 located on the first splicing platform 11, and the composite section 05 is wrapped by the folded splicing cloth 14. Through the movement of the splicing cloth 14, splicing occurs between the upper and lower parts of the folded splicing cloth 14, thereby driving the composite section 05 to roll towards the tipping paper 06 placed on the first splicing platform 11 for splicing. The spliced composite section 05 slides down along the slope 16 to complete discharging.

[0137] In another embodiment, both the first splicing platform 11 and the second splicing platform 12 are mobile platforms. The first splicing platform 11 and the second splicing platform 12 can move relative to each other in the first direction, driving the splicing cloth 14 to wrap the composite section to complete splicing.

[0138] As Figure 3 shown, further, at the position to be spliced, a composite section placement area 151 is provided on the splicing cloth 14. The composite section placement area 151 is located between the front end of the second splicing platform 12 for splicing and the first splicing platform 11. The composite section is placed in the composite section placement area 151 by a composite section loading manipulator. When the second splicing platform 12 moves towards the first splicing platform 11 in the first direction, the composite section located in the composite section placement area 151 is wrapped by the splicing cloth 14 and rolls.

[0139] Further, the first splicing platform 11 is parallel to the second splicing platform 12. At the position to be spliced, the second splicing platform 12 is spaced from the first splicing platform 11 in the first direction. The splicing device further includes a receiving groove 152 extending in the third direction. The receiving groove 152 is located below the composite section placement area 151 in the second direction and is used to receive the splicing cloth 14 located in the composite section placement area 151, where the third direction is parallel to the second splicing platform 12 and perpendicular to the first direction.

[0140] Furthermore, the receiving groove 152 can be adapted to place a composite filter rod or a smoke generating section with a diameter in the range of 5.4 mm - 7.7 mm.

[0141] Further, the first splicing platform 11 is parallel to the second splicing platform 12. At the position to be spliced, the splicing device further includes a first centering rod 21 and a second centering rod 22 arranged opposite to each other in the third direction. The third direction is parallel to the second splicing platform 12 and perpendicular to the first direction. The first centering rod 21 and the second centering rod 22 are located in the composite section placement area and press on the splicing cloth 14 in the third direction. The composite section is located between the first centering rod 21 and the second centering rod 22 in the third direction. The first centering rod 21 and the second centering rod 22 are used to close the composite section in the third direction to prevent gaps from being generated between the composite sections.

[0142] As Figure 4As shown, in one embodiment, the splicing device further includes a centering manipulator 2, and the centering manipulator 2 includes a first centering rod 21 and a second centering rod 22 that are oppositely arranged along the third direction. The centering manipulator 2 further includes a centering X-axis motor 23, a lifting shaft 24, a servo module 25, a splicing centering motor 231, a synchronous belt mechanism 27, a centering cylinder 28, a first centering rod rotating seat 29, and a second centering rod rotating seat 20. Among them, the first centering rod rotating seat 29 and the second centering rod rotating seat 20 are respectively distributed on both sides along the third direction for fixing the first centering rod 21 and the second centering rod 22. The function of the synchronous belt mechanism 27 is to prevent the height difference caused by the asynchronous rising of the two centering rods. The function of the centering cylinder 28 is that in the retracted state, it can prevent the second centering rod 22 from colliding with the splicing unit 1 during the up and down movement. In the extended state, it can make the second centering rod 22 insert into the groove in the splicing unit 1 as the reference end of the splicing length of the composite section.

[0143] When the composite section loading manipulator places the composite section into the receiving groove 152 of the splicing unit 1 or the composite section placement area 151, the splicing centering motor 231 starts to operate, driving the servo module 25 to drive the lifting shaft 24 to descend, so that the first centering rod 21 and the second centering rod 22 enter the receiving groove 152 in the splicing unit 1. At the same time, the centering X-axis motor 23 drives the first centering rod 21 to start rotating. The distance between the first centering rod 21 and the second centering rod 22 is the length after the composite section is spliced.

[0144] In one embodiment, when the composite section is in place for closing, the centering manipulator 2 withdraws from the receiving groove 152, the splicing centering motor 231 rotates in the reverse direction, the lifting shaft 24 rises under the drive of the servo module 25, and the first centering rod 21 and the second centering rod 22 withdraw from the receiving groove 152 to complete the loading of the composite section.

[0145] In another embodiment, the first centering rod 21 and the second centering rod 22 of the centering manipulator 2 move forward a certain distance with the composite section driven by the splicing cloth, and then the centering manipulator 2 withdraws from the receiving groove 152, the splicing centering motor 231 rotates in the reverse direction, the lifting shaft 24 rises under the drive of the servo module 25, and the first centering rod 21 and the second centering rod 22 withdraw from the receiving groove 152 to complete the loading of the composite section.

[0146] In other embodiments, the first centering rod and the second centering rod can also be driven to rotate actively, and the rotation speed is the same as the moving speed of the splicing cloth. In this way, during splicing, the tangential speed of the contact position between the first centering rod and the second centering rod and the splicing cloth is the same as the moving speed of the splicing cloth, so that there is no relative displacement between the first centering rod and the second centering rod and the splicing cloth, and the splicing cloth is not prone to wrinkling.

[0147] Furthermore, the distance between the first centering rod 21 and the second centering rod 22 in the third direction is adjustable. The distance between the first centering rod 21 and the second centering rod 22 can be adjusted by moving the first centering rod 21 and / or the second centering rod 22 in the third direction, or by adjusting the lengths of the first centering rod 21 and / or the second centering rod 22 to further adjust the distance.

[0148] Furthermore, the first centering rod 21 and the second centering rod 22 can be moved into and out of the position to be spliced.

[0149] Furthermore, the positions of the first centering rod 21 and the second centering rod 22 in the second direction are adjustable. When the second direction is the vertical direction, the servo module 25 drives the lifting shaft 24 to rise or fall, thereby adjusting the positions of the first centering rod 21 and the second centering rod 22 in the second direction.

[0150] In the above embodiments, the first splicing platform 11 has a first front end 111 and a first rear end 112 opposite to each other in the first direction. The first rear end 112 is farther from the second splicing platform 12 than the first front end 111 in the first direction. The second splicing platform 12 has a second front end 123 and a second rear end 124 opposite to each other in the first direction. The second rear end 124 is farther from the first splicing platform 11 than the second front end 123 in the first direction. The reel 13 is located at the second rear end 124, and one end of the splicing cloth 14 is fixed to the first rear end 112.

[0151] Furthermore, the first rear end of the first splicing platform 11 has a slope 16. The spliced composite section slides down through the slope 16, facilitating the collection of the spliced composite section.

[0152] Furthermore, a pressing block 17 is provided at the first rear end for fixing one end of the splicing cloth 14 near the first rear end. When the reel 13 is tightened, the pressing block 17 fixes the splicing cloth 14, and the tension of the splicing cloth 14 can be increased. On the contrary, when the reel 13 is appropriately relaxed and the pressing block 17 fixes one end of the splicing cloth 14 without moving, the tension of the splicing cloth 14 can be reduced. The splicing of composite sections with different diameters is adjusted adaptively in the above manner.

[0153] Furthermore, a negative pressure port 18 is provided on the first splicing platform 11 for adsorbing the tipping paper. Through the air flow negative pressure, the tipping paper is adsorbed on the first splicing platform 11, so that the tipping paper will not be displaced during the gluing and splicing processes, avoiding problems such as deviation of the gluing position and inaccurate wrapping of the composite section by the tipping paper.

[0154] Furthermore, the first splicing platform 11 is also provided with a heating module 101 for regulating the temperature of the splicing unit 1.

[0155] Furthermore, the negative pressure port 18 is a hole-shaped structure. The negative pressure port 18 can be multiple hole-shaped structures distributed at the vertices and the center of the tipping paper. The negative pressure port 18 can also be multiple rows of hole-shaped structures arranged at intervals, which are used to firmly adsorb the tipping paper.

[0156] In one embodiment, the distance between the second splicing platform 12 and the first splicing platform 11 in the second direction is within a set range, so as to be able to accommodate the composite section. The distance between the second splicing platform 12 and the first splicing platform 11 in the second direction can be set large enough to cover the diameters of all composite sections. When the second direction is the vertical direction, for example, the spatial position of the second splicing platform 12 is 10.2 mm higher than that of the first splicing platform 11, which is used to splice the composite sections with diameters ranging from 5.4 to 7.7 mm. Leaving enough distance between the second splicing platform 12 and the first splicing platform 11 in the second direction is applicable to the splicing of composite sections with different diameters. Further, the tension of the splicing cloth can also be adjusted to better adapt to the splicing of filter rods with different diameters. Exemplarily, when the diameter of the composite section changes, fine adjustment of the applicable diameter range is achieved by adjusting the tension of the splicing cloth.

[0157] In the above embodiments, the distance between the second splicing platform 12 and the first splicing platform 11 in the second direction is adjustable. The height difference between the second splicing platform 12 and the first splicing platform 11 can be adjusted according to actual needs to match and adapt to more filter rods with different diameters.

[0158] In one embodiment, the splicing device further includes a reel driving member 131, which is used to drive the reel to actively wind or unwind the splicing cloth 14. The reel driving member 131 can be a motor, and the splicing cloth 14 is tightened under the drive of the motor.

[0159] In another embodiment, during the splicing process, the splicing cloth 14 can be tightened without the drive of a motor and is passively tightened under the pulling of the second platform 12.

[0160] Furthermore, there are multiple splicing units 1, which are evenly arranged at intervals along the circumference of the entire splicing device, and multiple splicing units work simultaneously to improve the working efficiency of feeding, gluing, and splicing.

[0161] Furthermore, as Figure 5As shown in the figure, the tipping device 1 has a plurality of workstations 3, which are successively provided with a composite section feeding workstation 31, a tipping paper feeding workstation 32, a gluing workstation 33, and a tipping and forming workstation 34 along the circumferential direction. The composite section feeding workstation 31 is used for the step of placing the composite section onto the tipping cloth. The tipping paper feeding workstation 32 is used for the step of placing the tipping paper onto the first tipping platform. The gluing workstation 33 is used for the step of gluing the tipping paper. The tipping and forming workstation 34 is used for the step of tipping and joining the composite section and the tipping paper. The number of workstations 3 is the same as the number of tipping units 1, and the arrangement positions of the workstations 3 correspond to the arrangement positions of the tipping units 1. The plurality of tipping units 1 can rotate along the circumferential direction by a set rotation angle. Each time it rotates, the tipping unit 1 can rotate from the workstation 3 of the previous step to the workstation 3 of the next step.

[0162] Specifically, at the composite section feeding workstation 31, the tipping cloth 14 fits into the centering and receiving groove 152 under the action of the centering manipulator 2, and is used to receive the composite section transported by the composite section feeding manipulator (not shown). The centering manipulator 2 is located at both ends of the composite section, and according to the designed length of the composite section, several untipped composite sections that are combined but not yet tipped are gathered together to prevent gaps from occurring between the composite sections. After receiving the composite section, the tipping translation motor 191 drives the tipping roller 122 and the tipping cloth 14 to move forward, wrapping the composite section to be tipped.

[0163] When the tipping unit 1 rotates to the tipping paper feeding workstation 32, the air duct connecting sleeve 41 is connected to negative pressure. The negative pressure passes through the pipeline and the negative pressure port 18 on the tipping mounting seat plate 10 to receive the tipping paper transported by the formed paper fixed-length cutting and feeding unit and firmly adsorb it. The formed paper fixed-length cutting and feeding unit can cut the formed paper into a pre-set appropriate length, and the width of the formed paper is designed according to the circumference of the filter rod.

[0164] When the tipping unit 1 rotates to the gluing workstation 33, the automatic gluing unit automatically completes the quantitative gluing of the formed paper. The automatic gluing unit glues part or all areas of the formed paper according to the design requirements to ensure that the filter rod has a firm lap after tipping and the internal base rod does not shift.

[0165] When the tipping unit 1 rotates to the tipping and forming workstation 34, the tipping translation motor 191 drives the second tipping platform 12 to move towards the first tipping platform 11 along the first direction, driving the tipping cloth to wrap the composite section and move forward. During the movement, the tipped tipping paper and the composite section are automatically tipped to complete the tipping and forming of the composite filter rod.

[0166] This process is repeated in a cycle to achieve the tipping and forming of the composite filter rod.

[0167] Further, the number of workstations is 4, namely the composite section loading station 31, the tipping paper loading station 32, the gluing station 33, and the tipping and forming station 34, which are arranged at intervals of 90-degree angles along the circumferential direction. There are 4 tipping units, which are arranged at intervals of 90-degree angles along the circumferential direction. Each time the tipping unit 1 rotates one week, a complete set of tipping processes can be completed.

[0168] In one embodiment, the number of tipping stations can be 8, and the corresponding number of tipping units 1 is also 8. They respectively correspond to the composite section loading station 31, the tipping paper loading station 32, the gluing station 33, and the tipping and forming station 34, with 2 for each station. The order around one week starting from the starting station can be "31-32-33-34-31-32-33-34", or it can be "31-31-32-32-33-33-34-34". In the former case, the tipping unit 1 rotates 45 degrees each time, and a complete tipping process is completed every 180 degrees of rotation. In the latter case, the tipping unit 1 rotates 90 degrees each time, and a complete tipping process is completed every 360 degrees of rotation.

[0169] In another embodiment, the number of tipping stations can also be 12 or 16 or 20. Considering various aspects such as the operating efficiency of the tipping process and the occupied space of the device, the number of tipping stations is preferably 4, namely the composite section loading station 31, the tipping paper loading station 32, the gluing station 33, and the tipping and forming station 34.

[0170] In the above embodiments, the tipping unit 1 is composed of a tipping translation motor 191, a tipping cloth winding motor 192, a tipping mounting seat plate 10, a reel 13, a moving flat plate 121, a tipping roller 122, and a pressing block 17, and also includes a negative pressure sealing plate 181 and a lead screw pushing block 125.

[0171] The negative pressure sealing plate 181 is used to seal the internal passage of the negative pressure pipeline, ensure that the negative pressure air flow only flows in from the negative pressure port 18, ensure the adsorption effect of the tipping paper, and avoid air leakage.

[0172] After leaving the gluing station, the tipping translation motor 191 starts to operate, the lead screw nut drives the lead screw pushing block 125 to move, so that the moving flat plate 121 and the tipping roller 122 move together in the direction towards the first tipping platform, the reel 13 unwinds, and as the moving flat plate 121 and the tipping roller 122 move, the tipping cloth located above the first tipping platform is pulled to cover the tipping cloth on the first tipping platform and perform tipping movement. Then the tipping cloth winding motor 192 operates, the reel 13 starts to wind and pull the tipping cloth 14, completes the tipping and pushes the tipped composite section to the downstream.

[0173] As Figure 6As shown, the splicing device further includes a rotating shaft 42 and a rotating disk 43. The splicing unit 1 is disposed on the rotating disk 43. The rotating shaft 42 rotates to drive the rotating disk 43 to rotate, thereby driving the splicing unit 1 to rotate around the rotating shaft 42 in the circumferential direction.

[0174] Furthermore, the rotating shaft 42 is a hollow structure, which is respectively connected to the negative pressure port 18 and the negative pressure device 45. A negative pressure pipeline is provided inside the splicing unit 1, which is connected to the rotating shaft 42, the negative pressure port 18 and the negative pressure device 45. It is used to stably provide negative pressure to the negative pressure port 18 to absorb the tipping paper.

[0175] Furthermore, the splicing device also includes a first slip ring 441 and a second slip ring 442, the first slip ring 441 is used to fix the moving circuit, and the second slip ring 442 is used to fix the stator circuit, wherein the moving circuit rotates with the rotation of the rotating shaft, and the stator circuit does not rotate with the rotation of the rotating shaft, and is used to separate the moving circuit from the stator circuit to prevent the circuits from being entangled when the splicing device is running.

[0176] Furthermore, the first slip ring 441 is fixed inside the rotating shaft 42, and the second slip ring sleeve 442 is connected to the outside of the rotating shaft 42. The moving circuit inside the rotating shaft 42 rotates with the rotation of the rotating shaft 42, and the stator circuit sleeved outside the rotating shaft 42 does not rotate with the rotating shaft 42.

[0177] like Figure 7 As shown, the splicing device consists of a turntable rotating motor 461, a turntable rotating motor mounting base 462, a rotating disk 43, a rotating shaft 42, an air blowing transition pipe 471, a splicing air duct 472, a splicing station bearing sleeve 481, a slip ring 44, an air duct connecting sleeve 482, a splicing rotating bearing spacer sleeve 483 and a splicing rotating bearing clamping cover 484.

[0178] The rotating motor 461 drives the synchronous belt to rotate, so that the rotating shaft 42 rotates, and the rotating disk 43 rotates accordingly. The lower part of the rotating shaft 42 is connected with the air duct connecting sleeve 482 and the air duct, which passes through the air duct, the air duct 472 and the blowing transition pipe 471, and finally leads to the splicing unit 1, forming a complete negative pressure channel.

[0179] refer to Figures 9 - 24 The embodiment of the present invention also discloses a splicing method, which uses the above-mentioned splicing device to splice the composite segment in the aerosol generating product, including the following steps: placing the composite segment on the splicing cloth 14, and placing the tipping paper on the first splicing platform 11; the second splicing platform 12 is staggered or spaced relative to the first splicing platform 11 in the first direction, and is higher than the first splicing platform 11 in the second direction, and the first splicing platform 11 and the second splicing platform 12 are moved in a relatively close direction along the first direction, driving the splicing cloth 14 to wrap the composite segment and move, and then the splicing cloth 14 drives the composite segment to roll toward the tipping paper to complete the splicing.

[0180] By adopting the above technical solution, the splicing of composite sections with different diameters can be completed, and the available range of the device can be improved.

[0181] Figure 9 For Figure 10 is the sectional view taken along line A-A of , only showing part of the structure of the splicing device, including the splicing unit. Similarly, Figure 11 For Figure 12 is the sectional view taken along line A-A of Figure 13 For Figure 14 is the sectional view taken along line A-A of Figure 15 For Figure 16 is the sectional view taken along line A-A of Figure 17 For Figure 18 is the sectional view taken along line A-A of Figure 19 For Figure 20 is the sectional view taken along line A-A of Figure 21 For Figure 22 is the sectional view taken along line A-A of Figure 23 For Figure 24 is the sectional view taken along line A-A of . From Figures 9 - 24 shows the entire dynamic change diagram of the splicing device from the state of waiting for splicing to the process of splicing and the completion of splicing, where Figures 9 - 14 shows that the splicing unit is in the position of waiting for splicing, Figures 15 - 18 shows the schematic diagram of the changing state during splicing, Figures 19 - 20 shows the schematic diagram of the state when the splicing unit rotates to the cigarette paper feeding station, Figures 21 - 22 shows the schematic diagram of the state when the splicing unit rotates to the gluing station, Figures 23 - 24 shows the schematic diagram of the state when the splicing unit rotates to the splicing and forming station. Here, taking one of the multiple splices in the splicing device as an example, that is, the following first splicing unit 04, its state during the entire splicing process will be introduced.

[0182] Figure 9 is the schematic diagram of the initial state of the splicing unit, Figure 10 is the schematic diagram of the initial state of the splicing device, Figure 9 For Figure 10Cross-sectional view along line A-A, only showing a partial structure of the splicing device, including the splicing unit. The splicing device and the splicing unit are in an initial state before starting splicing. At this time, the splicing unit is in the position to be spliced. The first splicing platform 11 and the second splicing platform 12 are spaced apart in the first direction, and a receiving groove is provided at the spacing. The splicing cloth 14 is continuously laid flat on the first splicing platform 11. The first splicing platform 11 is lower than the second splicing platform 12 in the second direction. The splicing cloth is in a tensioned state, and both the first centering rod 21 and the second centering rod 22 are in a state away from the splicing platform, preventing the splicing platform from colliding with the first centering rod 21 and the second centering rod 22 when rotating, which affects the stable operation of the splicing device. The first splicing unit 04 is in the composite section feeding station 31 until the centering rod is withdrawn.

[0183] Figure 11 Schematic diagram of the centering rod pressing-down state of the splicing unit Figure 12 Schematic diagram of the centering rod pressing-down state of the splicing device Figure 11 For Figure 12 Cross-sectional view along line A-A, only showing a partial structure of the splicing device, including the splicing unit. After the initial state, the splicing device and the splicing unit enter the centering rod pressing-down state. The first centering rod 21 and the second centering rod 22 first extend and then press down, falling into the receiving groove 152. At this time, the second centering rod 22 is used as the reference end by the push of the cylinder. The first centering rod 21 is controlled by the servo module and can be controlled by a program for any displacement amount, serving as the moving end. The distance between the first centering rod 21 and the second centering rod 22 is the total length of the composite section 05. By adjusting the displacement amount of the first centering rod 21, different lengths of the composite section 05 can be matched. The splicing cloth 14 is pressed into the groove by the pressing force of the two centering rods.

[0184] Figure 13 Schematic diagram of the state of placing the composite section of the splicing unit Figure 14 Schematic diagram of the state of placing the composite section of the splicing device Figure 13 For Figure 14 Cross-sectional view along line A-A, only showing a partial structure of the splicing device, including the splicing unit. After the centering rod pressing-down state is completed, the splicing device and the splicing unit enter the composite section placing state. After the composite section feeding manipulator places the composite section into the receiving groove 152, the second centering rod 22 driven by the cylinder serves as the reference end, and the first centering rod driven by the motor serves as the moving end, pushing the composite section to contact the reference end, that is, the second centering rod 22. The composite section 05 is composed of multiple small sections. The function of the first centering rod 21 pushing is to make the composite section 05 arranged closely and reduce the gap between the composite sections 05.

[0185] Figure 15 Schematic diagram of the splicing moving state of the splicing unit Figure 16 Schematic diagram of the splicing moving state of the splicing deviceFigure 15 is Figure 16 A sectional view taken along line A-A of Figure 16 , showing only a partial structure of the splicing device, including the splicing unit. After the placement state of the composite section is completed, the splicing device and the splicing unit enter the splicing movement state. The second splicing platform 12 moves in the C direction in the figure, covering a part of the first splicing platform 11, further enabling the splicing cloth 14 to cover the upper part of the composite section placement area, and more wrapping the composite section 05. Splicing movement is performed in this state and then the centering rod is withdrawn to prevent the composite section 05 from flying out of the groove after the centering rod is withdrawn.

[0186] Figure 17 is a schematic diagram of the centering rod withdrawal state of the splicing unit, Figure 18 is a schematic diagram of the centering rod withdrawal state of the splicing device, Figure 17 is Figure 18 A sectional view taken along line A-A of Figure 18 , showing only a partial structure of the splicing device, including the splicing unit. After the splicing movement state, the splicing device and the splicing unit enter the centering rod withdrawal state. At this time, the first centering rod 21 and the second centering rod 22 retract in the third direction and are lifted in the second direction, thus moving away from the groove to prevent collision with the splicing unit. The centering rod presses the splicing cloth into the groove, so when the centering rod is withdrawn, the splicing cloth is re-tightened and closely adheres to the composite section. The first splicing unit 04 is at the composite section loading station 31.

[0187] Figure 19 is a schematic diagram of the state of placing the filter paper of the splicing unit, Figure 20 is a schematic diagram of the state of placing the filter paper of the splicing device, Figure 19 is Figure 20 A sectional view taken along line A-A of Figure 20 , showing only a partial structure of the splicing device, including the splicing unit. After the centering rod withdrawal state is completed, the splicing device and the splicing unit enter the state of placing the filter paper. The first splicing unit 04 rotates from the composite section loading station 31 to the tipping paper loading station 32 and adsorbs the tipping paper 06 through the negative pressure port 18.

[0188] Figure 21 is a schematic diagram of the gluing state of the splicing unit, Figure 22 is a schematic diagram of the gluing state of the splicing device, Figure 21 is Figure 22 A sectional view taken along line A-A of Figure 22 , showing only a partial structure of the splicing device, including the splicing unit. When the state of placing the filter paper ends, the splicing device and the splicing unit enter the gluing state. The splicing unit rotates from the tipping paper loading station 32 to the gluing station 33 and glues the tipping paper 06 through the automatic gluing mechanism.

[0189] Figure 23 is a schematic diagram of the splicing and forming state of the splicing unit, Figure 24 is a schematic diagram of the splicing and forming state of the splicing device, Figure 23 isFigure 24 Cross-sectional view taken along line A-A, showing only a partial structure of the tipping device, including the tipping unit. When the gluing state is completed, the tipping device and the tipping unit enter the tipping and forming state. The second tipping platform 12 moves along the C direction, tipping the tipping paper 06 onto the outer surface of the composite section 05 to form a formed filter rod or a formed cigarette, and then continues to move along the C direction, driving the filter rod to reach the slope to complete the discharging.

[0190] During the tipping process, the second tipping platform 12 moves towards the first tipping platform, driving the tipping cloth 14 to wrap the composite section, so that the composite section rolls towards the tipping paper, realizing the process of wrapping the tipping paper around the composite section.

[0191] Furthermore, a composite section placement area 151 is provided on the tipping cloth 14. The composite section placement area 151 is located between the tipping front end of the second tipping platform 12 and the first tipping platform 11. The first tipping platform 11 is parallel to the second tipping platform 12. The tipping device further includes a first centering rod 21 and a second centering rod 22. The method includes: at the position to be tipped, the first centering rod 21 and the second centering rod 22 are arranged oppositely along the third direction and are located in the composite section placement area 151, pressing on the tipping cloth along the third direction, placing the composite section between the first centering rod 21 and the second centering rod 22 along the third direction, and the ends of the first centering rod 21 and the second centering rod 22 abut against the composite section to close the composite section. Among them, the third direction is parallel to the second tipping platform and perpendicular to the first direction. By controlling the first centering rod 21 and the second centering rod 22 to close the composite section, the generation of gaps between multiple composite sections is avoided.

[0192] Furthermore, adjust the distance between the first centering rod 21 and the second centering rod 22 in the third direction to match the length of the composite section. The first centering rod 21 and the second centering rod 22 can be withdrawn from the tipping cloth 14. They can be withdrawn by raising the height of the first centering rod 21 and the second centering rod 22, or by increasing the distance between the first centering rod 21 and the second centering rod 22.

[0193] Furthermore, adjust the distance between the second tipping platform 12 and the first tipping platform 11 in the second direction to match the diameter of the composite section.

[0194] Optionally, after tipping is completed, wind up the tipping cloth to make the tipping cloth 14 taut. The tipping cloth 14 pushes out the tipped composite section through the tensioning effect. Utilizing the tension of the tipping cloth 14, the tipped composite section is extruded and pushed out from the first rear end 112, facilitating the collection of the composite section.

[0195] Furthermore, there are multiple splicing units 1, which are evenly arranged at intervals along the circumferential direction. The splicing device has multiple stations 3, and a composite section feeding station 31, a tipping paper feeding station 32, a gluing station 33, and a splicing and forming station 34 are sequentially arranged along the circumferential direction. The composite section feeding station 31 is used for the step of placing the composite section on the splicing cloth. The tipping paper feeding station 32 is used for the step of placing the tipping paper on the first splicing platform. The gluing station 33 is used for the step of gluing the tipping paper. The splicing and forming station 34 is used for the step of splicing the composite section and the tipping paper. The number of stations 3 is the same as the number of splicing units 1, and the arrangement positions of the stations 3 correspond to the arrangement positions of the splicing units 1. The splicing method includes: driving the multiple splicing units 1 to rotate multiple times along the circumferential direction by a set rotation angle. Each time of rotation, the splicing unit 1 can rotate from the station 3 of the previous step to the station 3 of the next step.

[0196] Although the present invention has been illustrated and described with reference to certain preferred embodiments thereof, those of ordinary skill in the art should understand that the above content is a further detailed description of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is only limited to these descriptions. Those skilled in the art can make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A tipping device for tipping a composite section in an aerosol-generating article, characterized in that, Comprising a splicing unit, the splicing unit includes a first splicing platform, a second splicing platform, a reel, and a splicing cloth. Among them, The first splicing platform is used to be covered by the splicing cloth, and tipping paper for splicing is placed on the covered splicing cloth; The second splicing platform, the first splicing platform and the second splicing platform can move in a relatively approaching or separating direction in the first direction; The reel is used to wind or unwind the splicing cloth; The splicing cloth is continuously spread on the first splicing platform and the second splicing platform along the first direction. One end of the splicing cloth along the first direction is fixed, and the other end is wound around the reel. The splicing cloth is used to place the composite section; At the position to be spliced, the second splicing platform is staggered or spaced relative to the first splicing platform in the first direction, and is higher than the first splicing platform in the second direction. By moving the first splicing platform and the second splicing platform in a relatively approaching direction along the first direction, the splicing cloth is driven to wrap the composite section, and the composite section is driven by the splicing cloth to roll towards the tipping paper to complete splicing, wherein the first direction and the second direction are perpendicular.

2. The twisting and connecting device according to claim 1, characterized in that, The first splicing platform is a fixed platform, the second splicing platform is a moving platform. The second splicing platform includes a moving flat plate and a splicing roller. The splicing roller is located at the splicing front end of the moving flat plate, parallel to the moving flat plate and perpendicular to the first direction. At the position to be spliced, the splicing cloth extends from the splicing rear end of the moving flat plate to the splicing front end, bypasses the splicing roller and then falls onto the first splicing platform along the second direction. By moving the moving flat plate and the splicing roller towards the first splicing platform along the first direction, the splicing cloth is driven to complete splicing.

3. The twisting and joining device according to claim 1, wherein At the position to be spliced, a composite section placement area is provided on the splicing cloth, and the composite section placement area is located between the splicing front end of the second splicing platform and the first splicing platform.

4. The twisting and connecting device according to claim 3, wherein, The first splicing platform is parallel to the second splicing platform. At the position to be spliced, the splicing device further includes a first centering rod and a second centering rod oppositely arranged in the third direction. The third direction is parallel to the second splicing platform and perpendicular to the first direction. The first centering rod and the second centering rod are located in the composite section placement area and press on the splicing cloth along the third direction. The composite section is located between the first centering rod and the second centering rod along the third direction. The first centering rod and the second centering rod are used to close the composite section in the third direction.

5. The splicing device according to claim 4, wherein The distance between the first centering rod and the second centering rod in the third direction is adjustable.

6. The splicing device according to claim 4, characterized in that The first centering rod and the second centering rod can be moved into and out of the position to be spliced.

7. The twisting and connecting device according to claim 4, characterized in that, When splicing, the first centering rod and the second centering rod can rotate.

8. The splicing device according to claim 4, characterized in that The positions of the first centering rod and the second centering rod in the second direction are adjustable.

9. The twisting and connecting device according to claim 3, characterized in that The first splicing platform is parallel to the second splicing platform. In the splicing position, the second splicing platform is spaced apart from the first splicing platform in the first direction. The splicing device also includes a receiving groove extending along a third direction. The receiving groove is located below the composite section placement area along the second direction, and is used to receive the splicing cloth located in the composite section placement area, wherein the third direction is parallel to the second splicing platform and perpendicular to the first direction.

10. The twisting and connecting device according to claim 1, characterized in that, The first splicing platform has a first front end and a first rear end opposite to each other along the first direction, the first rear end is farther away from the second splicing platform than the first front end along the first direction, the second splicing platform has a second front end and a second rear end opposite to each other along the first direction, the second rear end is farther away from the first splicing platform than the second front end along the first direction, the reel is located at the second rear end, and one end of the splicing cloth is fixed to the first rear end.

11. The twisting and connecting device according to claim 10, wherein, The first rear end of the first splicing platform has a slope, and the spliced ​​composite section slides down through the slope.

12. The twisting and connecting device according to claim 10, characterized in that, The first rear end is provided with a pressing block for fixing an end of the splicing cloth close to the first rear end.

13. The splicing device according to claim 1, wherein, The first splicing platform is provided with a negative pressure port for absorbing the tipping paper.

14. The splicing device according to claim 1, characterized in that, The distance between the second splicing platform and the first splicing platform in the second direction is adjustable.

15. The splicing device according to claim 1, wherein, The splicing device also includes a reel driving member for driving the reel to actively reel in or unwind the splicing cloth.

16. The twisting and connecting device according to claim 1, characterized in that, The material of the splicing cloth is polytetrafluoroethylene.

17. The splicing device according to claim 1, wherein There are multiple splicing units, which are evenly spaced and arranged along the circumference. The splicing device has a plurality of workstations, which are sequentially provided with a compound section loading workstation, a tipping paper loading workstation, a gluing workstation and a splicing forming workstation along the circumferential direction. The compound section loading workstation is used to place the compound section on the splicing cloth, the tipping paper loading workstation is used to place the tipping paper on the first splicing platform, the gluing workstation is used to gluing the tipping paper, and the splicing forming workstation is used to splice the compound section with the tipping paper. The number of the workstations is the same as the number of the splicing units, and the arrangement positions of the workstations correspond to the arrangement positions of the splicing units. The plurality of splicing units can rotate at a set rotation angle along the circumferential direction, and each time the splicing unit rotates once, the splicing unit can move from a station of a previous step to a station of a next step.

18. The splicing device according to claim 17, characterized in that, The number of workstations is 4, namely the composite section loading workstation, the tipping paper loading workstation, the gluing workstation and the splicing and forming workstation, which are arranged at intervals of 90 degrees along the circumferential direction. The number of splicing units is 4, which are arranged at intervals of 90 degrees along the circumferential direction.

19. The splicing device according to claim 17, wherein The splicing device further comprises a rotating shaft and a rotating disk, the splicing unit is arranged on the rotating disk, and the rotating disk is driven to rotate by the rotation of the rotating shaft, thereby driving the splicing unit to rotate around the rotating shaft in the circumferential direction.

20. The twisting and joining device according to claim 17, characterized in that, The splicing device further includes a first slip ring and a second slip ring. The first slip ring is used to fix the rotor circuit, and the second slip ring is used to fix the stator circuit. Wherein, the rotor circuit rotates with the rotation of the rotating shaft, and the stator circuit does not rotate with the rotation of the rotating shaft.

21. The twisting and connecting device according to claim 1, characterized in that, The first splicing platform is a fixed platform, and the second splicing platform is a moving platform.

22. A splicing method, characterized in that, Using the splicing device according to any one of claims 1-21 to splice the composite section in the aerosol generating article, includes the following steps: Place the composite section on the splicing cloth, and place the tipping paper on the first splicing platform. The second splicing platform is offset or spaced relative to the first splicing platform in the first direction, and is higher than the first splicing platform in the second direction. Move the first splicing platform and the second splicing platform in a relatively approaching direction along the first direction, drive the splicing cloth to wrap the composite section and move, and then the splicing cloth drives the composite section to roll towards the tipping paper to complete the splicing.

23. The tipping method according to claim 22, wherein, The splicing cloth is provided with a composite section placement area, which is located between the splicing front end of the second splicing platform and the first splicing platform. The first splicing platform is parallel to the second splicing platform. The splicing device further includes a first centering rod and a second centering rod. The method includes: At the position to be spliced, the first centering rod and the second centering rod are arranged oppositely along the third direction and are located in the composite section placement area, press on the splicing cloth along the third direction, place the composite section between the first centering rod and the second centering rod along the third direction, the ends of the first centering rod and the second centering rod are in contact with the composite section, and close the composite section. Wherein, the third direction is parallel to the second splicing platform and perpendicular to the first direction.

24. The twisting and joining method according to claim 23, characterized in that, Adjust the distance between the first centering rod and the second centering rod in the third direction to match the length of the composite section.

25. The tipping method according to claim 23, characterized in that, The first centering rod and the second centering rod can be withdrawn from the splicing cloth.

26. The splicing method according to claim 22, characterized in that, Adjust the distance between the second splicing platform and the first splicing platform in the second direction to match the diameter of the composite section.

27. The splicing method according to claim 22, characterized in that, After splicing is completed, wind up the splicing cloth so that the splicing cloth is tensioned, and the splicing cloth pushes out the spliced composite section through the tensioning effect.

28. The twisting and joining method according to claim 22, characterized in that, There are multiple splicing units, which are evenly arranged at intervals in the circumferential direction. The splicing device has multiple stations, and are successively provided with a composite section loading station, a tipping paper loading station, a gluing station and a splicing and forming station in the circumferential direction. The composite section loading station is used for the step of placing the composite section on the splicing cloth, the tipping paper loading station is used for the step of placing the tipping paper on the first splicing platform, the gluing station is used for the step of gluing the tipping paper, and the splicing and forming station is used for the step of splicing the composite section and the tipping paper. The number of stations is the same as the number of splicing units, and the arrangement positions of the stations correspond to the arrangement positions of the splicing units. The splicing method includes: Drive multiple said splicing units to rotate multiple times circumferentially by a set rotation angle. Each time of rotation, the splicing unit can be transferred from the working position of the previous step to the working position of the next step.

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