Cavity filler composite filter stick forming equipment

Abstract

The utility model discloses a cavity filler composite filter rod forming device in the technical field of filter rod forming, which comprises a charge rod conveying belt, a charge rod arranging assembly, a smoke gun and a particle adding assembly, the charge rod arranging assembly is arranged between the charge rod conveying belt and the smoke gun, and the particle adding assembly is arranged above the smoke gun; the charge bar arrangement assembly comprises a feeding adapter disc, an anti-backlash adapter disc and a positioning adapter disc, the anti-backlash adapter disc is located between the feeding adapter disc and the positioning adapter disc, and the rotation direction of the anti-backlash adapter disc is opposite to the rotation direction of the feeding adapter disc and the rotation direction of the positioning adapter disc; the particle adding assembly comprises a material bin, a material conveying pipe and a funnel, the funnel is located over the forming paper, the material bin is installed above the funnel, and the material conveying pipe is connected between the material bin and the funnel. The utility model not only realizes the production of the cavity filler composite filter stick, but also has the advantages of simple structure, strong operability and convenience in large-scale application.

Description

Technical Field

[0001] The utility model relates to the technical field of filter rod forming, in particular to a cavity filler composite filter rod forming device. Background Art

[0002] As one of the most important raw materials in cigarette products, filter rods play the role of reducing tar and alleviating harm during the smoking process. With the continuous improvement of public health awareness and the strict control and requirements of my country's tobacco industry on the tar content of cigarettes, functional filter rods with filter rods as the main breakthrough point are constantly emerging, such as activated carbon filter rods, bursting bead filter rods, groove filter rods, multi-composite filter rods, etc.

[0003] In recent years, composite filter rods with a cavity structure (full name: cavity filler composite filter rods) have gradually become a research and development hotspot for domestic tobacco companies due to their novel appearance and unique functions. If the existing filter rod forming equipment can be used to produce cavity filler composite filter rods, it will not only meet market demand, but also reduce the production costs of tobacco factories, which will have huge economic benefits for major tobacco companies.

[0004] Therefore, how to improve the existing filter rod forming equipment to meet the production requirements of cavity filler composite filter rods has become a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of the present invention is to provide a cavity filler composite filter rod forming device to solve the technical problem that the existing filter rod forming device cannot produce cavity filler composite filter rods.

[0006] The technical solution adopted by the utility model is: a cavity filler composite filter rod forming device, including a material rod conveyor belt, a material rod arrangement assembly, a smoke gun and a particle addition assembly, the material rod arrangement assembly is installed between the material rod conveyor belt and the smoke gun, and the particle addition assembly is installed above the smoke gun;

[0007] The material rod arrangement assembly includes a feed adapter plate, an anti-gap adapter plate and a positioning adapter plate, the feed adapter plate is located above the unloading end of the material rod conveyor belt, the positioning adapter plate is located above the feeding end of the smoke gun, the anti-gap adapter plate is located between the feed adapter plate and the positioning adapter plate, and the anti-gap adapter plate rotates in the opposite direction to the feed adapter plate and the positioning adapter plate; a feed adapter groove is formed on the feed adapter plate, an anti-gap adapter groove is formed on the anti-gap adapter plate, and a positioning adapter groove is formed on the positioning adapter plate, a feed arc surface matching with the feed adapter plate and a positioning arc surface matching with the positioning adapter plate are installed below the anti-gap adapter plate, and an anti-gap arc surface matching with the anti-gap adapter plate is installed above the anti-gap adapter plate;

[0008] The particle adding assembly includes a silo, a feeding pipe and a funnel. The funnel is located directly above the shaping paper of the cigarette gun. The silo is installed above the funnel. The feeding pipe is connected between the silo and the funnel.

[0009] Preferably, the molding equipment also includes a residual material recovery component, which includes a return material box, a return material turntable, and a negative pressure return material pipe. The return material box is installed above the cigarette gun, and the bottom of the return material box is provided with a return material port that matches the molding paper. The return material turntable is rotatably installed in the inner cavity of the return material box, and a recovery groove is formed on one side of the return material box, and the recovery groove is connected to one end of the negative pressure return material pipe.

[0010] Preferably, the other end of the negative pressure return pipe is connected to the silo.

[0011] Preferably, the angular velocities of the feed adapter plate, the backlash-eliminating adapter plate and the positioning adapter plate are equal, and the linear velocities of the feed adapter plate, the backlash-eliminating adapter plate and the positioning adapter plate gradually decrease.

[0012] Preferably, a plurality of feed transfer teeth are evenly distributed on the circumference of the feed transfer disk, and a feed transfer groove is formed between two adjacent feed transfer teeth; a plurality of gap-eliminating transfer teeth are evenly distributed on the circumference of the anti-gap transfer disk, and an anti-gap transfer groove is formed between two adjacent anti-gap transfer teeth; a plurality of positioning transfer teeth are circumferentially distributed on the positioning transfer disk, and a positioning transfer groove is formed between two adjacent positioning transfer teeth, the groove width dimension of the anti-gap transfer groove is larger than the length dimension of the material rod segment and smaller than the groove width dimension of the feed transfer groove, and the groove width dimension of the positioning transfer groove is equal to the length dimension of the material rod segment.

[0013] Preferably, the tooth width of the feed transition teeth and the backlash-eliminating transition teeth is 5 mm, the groove width of the feed transition groove and the backlash-eliminating transition groove is 28-30 mm, the tooth width of the positioning transition teeth is 6 mm, and the groove width of the positioning transition groove is 24 mm.

[0014] Preferably, the positioning adapter plate includes a first rotor, a second rotor and a tooth chain, the first rotor is installed on the lower side of the gap-eliminating adapter plate, the second rotor is installed between the first rotor and the funnel, and the lowest point of the first rotor is at the same height as the lowest point of the second rotor, the tooth chain is transmission-connected to the first rotor and the second rotor, and the bottom of the tooth chain is in a horizontal state.

[0015] Preferably, a plurality of scraping teeth are distributed circumferentially on the return material turntable, and the tooth height of the scraping teeth is equal to the distance between the return material turntable and the inner wall of the return material box, and the recovery trough is arranged on one side of the return material box and is connected to the inner cavity of the return material box.

[0016] Preferably, the rotation direction of the return material turntable is opposite to the rotation direction of the positioning transfer disk.

[0017] Preferably, the funnel is smaller at the top and larger at the bottom, and a dividing baffle is installed in the funnel, and 2-5 dividing baffles are spaced apart and distributed along the conveying direction of the material rod segments.

[0018] Beneficial effects of the utility model:

[0019] The utility model installs a material rod arranging component between the material rod conveyor belt and the smoke gun of the existing filter rod forming unit, and installs a particle adding component and a residual material recovery component just above the smoke gun. The material rod segments conveyed by the material rod conveyor belt to the smoke gun are arranged and positioned by the three counter-rotating feed adapter plates, the anti-backlash adapter plate and the positioning adapter plate of the material rod arranging component, filler is added to the cavity segment between two adjacent material rod segments by the particle adding component, and the excess filler is recovered by the residual material recovery component. This not only realizes the production of cavity filler composite filter rods, but also has the advantages of simple structure, strong operability and convenient large-scale application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of the cavity filler composite filter rod forming equipment of the present invention;

[0021] Figure 2 It is a structural diagram of the material rod arrangement component;

[0022] Figure 3 Schematic diagram of the structure of the particle adding component and the residual material recovery component;

[0023] Figure 4 This is a schematic diagram of an open cavity filler composite filter rod before adding material;

[0024] Figure 5 Schematic diagram of the open cavity filler composite filter rod when adding material;

[0025] Figure 6 Schematic diagram of the structure of the cavity filler composite filter rod;

[0026] Figure 7 for Figure 1 A partial enlarged view of the .

[0027] Description of reference numerals in the figures:

[0028] 100. Material bar conveyor belt;

[0029] 200. Material bar arrangement assembly;

[0030] 210. Feed transfer plate; 211. Feed transfer teeth; 212. Feed transfer trough;

[0031] 220, anti-backlash adapter plate; 221, anti-backlash adapter teeth; 222, anti-backlash adapter slot;

[0032] 230, positioning transfer plate; 231, positioning transfer tooth; 232, positioning transfer groove; 233, first rotating wheel; 234, second rotating wheel; 235, tooth chain;

[0033] 240, mounting seat; 241, feed plate; 242, positioning plate; 243, anti-backlash plate; 244, feed arc surface; 245, positioning arc surface; 246, anti-backlash arc surface;

[0034] 300, smoking pipe;

[0035] 400, particle addition component;

[0036] 410, silo; 420, feed pipe; 430, funnel; 440, dividing baffle; 450, communicating vessel;

[0037] 500. Residue recycling components;

[0038] 510, return box; 520, return turntable; 530, negative pressure return pipe; 540, return port; 550, recovery trough; 560, scraper; 570, substrate;

[0039] 600, forming paper;

[0040] 700, filter rod;

[0041] 710. Rod segment; 720. Cavity segment. DETAILED DESCRIPTION

[0042] The following is a further detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. These embodiments are only used to illustrate the present invention, and are not intended to limit the present invention.

[0043] In the description of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0045] In addition, in the description of the present invention, unless otherwise specified, “a plurality of” means two or more.

[0046] Examples, such as Figure 1-Figure 7 As shown, a cavity filler composite filter rod forming device includes a material rod conveyor belt 100, a material rod arranging assembly 200, a smoke gun 300 and a particle adding assembly 400. The material rod arranging assembly 200 is installed between the material rod conveyor belt 100 and the smoke gun 300, and is used to arrange the material rod segments 710 on the material rod conveyor belt 100 in an orderly manner at a predetermined interval and move them to the forming paper 600 of the smoke gun 300; the particle adding assembly 400 is installed above the smoke gun 300, and is used to add filler to the cavity segment 720 between the two material rod segments 710 wrapped by the forming paper 600.

[0047] The material rod arrangement assembly 200 includes a feed adapter plate 210, an anti-backlash adapter plate 220 and a positioning adapter plate 230. The feed adapter plate 210 is located above the unloading end of the material rod conveyor belt 100, and the positioning adapter plate 230 is located above the feeding end of the smoke gun 300. The anti-backlash adapter plate 220 is located between the feed adapter plate 210 and the positioning adapter plate 230, and the anti-backlash adapter plate 220 rotates in the opposite direction to the feed adapter plate 210 and the positioning adapter plate 230, while the feed adapter plate 210 and the positioning adapter plate 230 rotate in the same direction. A plurality of feed adapter grooves 212 are formed on the feed adapter plate 210, a plurality of anti-backlash adapter grooves 222 are formed on the anti-backlash adapter plate 220, and a plurality of positioning adapter grooves 222 are formed on the positioning adapter plate 230. The adapter groove 232 is provided, and a feed arc surface 244 that cooperates with the feed adapter disc 210 is installed on the lower side of the gap-eliminating adapter disc 220, so that the material rod segment 710 on the material rod conveyor belt 100 enters the feed adapter groove 212 and rotates synchronously with the feed adapter disc 210; a positioning arc surface 245 that cooperates with the positioning adapter disc 230 is installed on the lower side of the gap-eliminating adapter disc 220, so that the material rod segment 710 falling into the positioning adapter groove 232 rotates synchronously with the gap-eliminating adapter disc 220 to the forming paper 600; a gap-eliminating arc surface 246 that cooperates with the gap-eliminating adapter disc 220 is installed above the gap-eliminating adapter disc 220, so that the material rod segment 710 in the feed adapter groove 212 enters the positioning adapter groove 232 after the gap is eliminated.

[0048] The particle addition assembly 400 includes a silo 410, a feed pipe 420 and a funnel 430. The silo 410 is installed above the funnel 430. The funnel 430 is located directly above the shaping paper 600, and both ends of the funnel 430 are open. The bottom end of the funnel 430 contacts the shaping paper 600, and the bottom end of the funnel 430 is connected to one end of the feed pipe 420. The other end of the feed pipe 420 is connected to the silo 410.

[0049] The present invention installs a material rod arrangement component 200 between the material rod conveyor belt 100 and the smoke gun 300 of the existing filter rod forming unit, and installs a particle adding component 400 directly above the smoke gun 300. The material rod segments 710 conveyed from the material rod conveyor belt 100 to the smoke gun 300 are arranged and positioned through the three counter-rotating feed adapter plates 210, the gap-eliminating adapter plate 220 and the positioning adapter plate 230 of the material rod arrangement component 200, and fillers are added to the cavity segment 720 between two adjacent material rod segments 710 through the particle adding component 400, which not only realizes the production of cavity filler composite filter rods, but also has the advantages of simple structure, strong operability and convenient large-scale application.

[0050] Specific embodiment 1, as Figure 1-Figure 7 As shown, a cavity filler composite filter rod forming device includes a material rod conveyor belt 100, a material rod arrangement component 200, a smoke gun 300, a particle addition component 400 and a residual material recovery component 500.

[0051] The material rod arrangement assembly 200 includes a feed adapter plate 210, a gap-eliminating adapter plate 220, a positioning adapter plate 230 and a mounting seat 240. The mounting seat 240 is located on one side between the material rod conveyor belt 100 and the smoke gun 300, that is, in the material rod conveying direction, the mounting seat 240 is located between the material rod conveyor belt 100 and the smoke gun 300. In the vertical material rod conveying direction, the mounting seat 240 is located on the same side of the smoke gun 300 and the material rod conveyor belt 100.

[0052] The feed adapter plate 210, the gap-eliminating adapter plate 220 and the positioning adapter plate 230 can all be rotatably mounted on the mounting base 240; the feed adapter plate 210 is located above the unloading end of the material rod conveyor belt 100, that is, the feed adapter plate 210 is located directly above the left end of the material rod conveyor belt 100; the positioning adapter plate 230 is located above the feed end of the smoke gun 300, that is, the positioning adapter plate 230 is located directly above the right end of the smoke gun 300, the gap-eliminating adapter plate 220 is located between the feed adapter plate 210 and the positioning adapter plate 230, and the height of the gap-eliminating adapter plate 220 is higher than the feed adapter plate 210 and the positioning adapter plate 230.

[0053] The rotation direction of the anti-backlash adapter plate 220 is opposite to that of the feed adapter plate 210 and the positioning adapter plate 230. The feed adapter plate 210 and the positioning adapter plate 230 have the same rotation direction, that is, the feed adapter plate 210 and the positioning adapter plate 230 rotate clockwise, and the anti-backlash adapter plate 220 rotates counterclockwise, and the angular velocities of the feed adapter plate 210, the anti-backlash adapter plate 220, and the positioning adapter plate 230 are the same. The linear velocity of the anti-backlash adapter plate 220 is smaller than the linear velocity of the feed adapter plate 210 and greater than the linear velocity of the positioning adapter plate 230, that is, the radial dimension of the feed adapter plate 210 is larger than the radial dimension of the anti-backlash adapter plate 220.

[0054] Preferably, in order to arrange the material rod segments 710 in the positioning and adapting grooves 232 at equal intervals on the forming paper 600, the bottom of the positioning and adapting plate 230 is in a horizontal state.

[0055] Specifically: the positioning adapter disk 230 includes a first rotating wheel 233, a second rotating wheel 234 and a tooth chain 235, wherein the first rotating wheel 233 is installed at the lower left side of the gap-eliminating adapter disk 220, and the second rotating wheel 234 is installed between the first rotating wheel 233 and the funnel 430, and the lowest point of the first rotating wheel 233 is at the same height as the lowest point of the second rotating wheel 234. The tooth chain 235 is transmission-connected to the first rotating wheel 233 and the second rotating wheel 234, and the bottom of the tooth chain 235 is in a horizontal state. The horizontal portion of the tooth chain 235 includes 5-20 positioning adapter teeth 231.

[0056] A plurality of positioning transfer teeth 231 are evenly distributed on the tooth chain 235, and a positioning transfer groove 232 is formed between two adjacent positioning transfer teeth 231; a plurality of feed transfer teeth 211 are evenly distributed along the circumferential direction on the feed transfer disk 210, and a feed transfer groove 212 is formed between two adjacent feed transfer teeth 211; a plurality of gap-eliminating transfer teeth 221 are evenly distributed along the circumferential direction on the gap-eliminating transfer disk 220, and a gap-eliminating transfer groove 222 is formed between two adjacent gap-eliminating transfer teeth 221; the groove width dimension of the gap-eliminating transfer groove 222 is greater than the length dimension of the material rod segment 710 and smaller than the groove width dimension of the feed transfer groove 212, and the groove width dimension of the positioning transfer groove 232 is equal to the length dimension of the material rod segment 710.

[0057] Specifically: the tooth width dimension is b, and the groove width dimension is a; the tooth width of the feed transition tooth 211 and the anti-backlash transition tooth 221 is 5mm, the groove width of the feed transition groove 212 and the anti-backlash transition groove 222 is 28-30mm, the tooth width of the positioning transition tooth 231 is 6mm, and the groove width of the positioning transition groove 232 is 24mm.

[0058] A feed plate 241, a positioning plate 242 and an anti-gap plate 243 are fixedly mounted on the mounting seat 240. The feed plate 241 is located at the lower right side of the anti-gap adapter disk 220, and the side of the feed plate 241 facing the feed adapter disk 210 is a feed arc surface 244. The feed arc surface 244 is coaxially arranged with the feed adapter disk 210, and the feed arc surface 244 cooperates with the feed adapter disk 210 to radially limit the material rod segment 710 in the feed adapter groove 212, so that the material rod segment 710 loaded on the material rod conveyor belt 100 enters the feed adapter groove 212 and rotates synchronously with the feed adapter disk 210.

[0059] The positioning plate 242 is located at the lower left side of the gap-eliminating adapter disk 220, and the side of the positioning plate 242 facing the feed adapter disk 210 is a positioning arc surface 245. The positioning arc surface 245 is coaxially arranged with the positioning adapter disk 230, and the positioning arc surface 245 cooperates with the positioning adapter disk 230 to radially limit the material rod segment 710 in the positioning adapter groove 232, so that the material rod segment 710 in the positioning adapter groove 232 follows the gap-eliminating adapter disk 220 to rotate synchronously to the forming paper 600 and be arranged at equal intervals.

[0060] The gap-eliminating plate 243 is located directly above the gap-eliminating adapter plate 220, and the side of the gap-eliminating plate 243 facing the gap-eliminating adapter plate 220 is a gap-eliminating arc surface 246. The gap-eliminating arc surface 246 is coaxially arranged with the gap-eliminating adapter plate 220, and the gap-eliminating arc surface 246 cooperates with the gap-eliminating adapter plate 220 to radially limit the material rod segment 710 in the gap-eliminating adapter groove 222.

[0061] The top of the feeding arc surface 244 is connected to the right bottom end of the gap-eliminating arc surface 246, and the top of the positioning arc surface 245 is connected to the left bottom end of the gap-eliminating arc surface 246, so that the material rod segment 710 in the feeding transition groove 212 can enter the positioning transition groove 232 after the gap is eliminated.

[0062] The particle adding assembly 400 includes a silo 410, a feed pipe 420, a funnel 430, a dividing baffle 440 and a communicating vessel 450. The silo 410 is installed above the funnel 430. The funnel 430 is located directly above the shaping paper 600, and both ends of the funnel 430 are open. The bottom end of the funnel 430 is in contact with the shaping paper 600, and the top end of the funnel 430 is detachably fixedly connected with the communicating vessel 450. The communicating vessel 450 is connected to one end of the feed pipe 420, and the other end of the feed pipe 420 is connected to the silo 410, and is used to add filler to the cavity segment 720 between two adjacent material rod segments 710.

[0063] Preferably, the funnel 430 is shaped small at the top and large at the bottom, and a dividing baffle 440 is installed in the funnel 430. 2-5 dividing baffles 440 are spaced apart along the conveying direction of the material rod segment 710. The dividing baffles 440 can evenly distribute the particles to the bottom of the funnel 430. The bottom of the funnel 430 contacts the open cavity segment 720, which helps to evenly distribute the particles into the cavity segment 720 and avoid the accumulation of particles in the funnel 430.

[0064] The residual material recovery assembly 500 includes a return material box 510, a return material turntable 520, a negative pressure return material pipe 530 and a base plate 570. The base plate 570 is located on one side of the cigarette gun 300. The return material box 510 is fixedly installed on the base plate 570, and the return material box 510 is located directly above the cigarette gun 300. The bottom of the return material box 510 is provided with a return material port 540 that cooperates with the forming paper 600, which is used to allow excess filler to enter the return material box 510. The return material turntable 520 is rotatably installed in the inner cavity of the return material box 510, and the rotation direction of the return material turntable 520 is opposite to the rotation direction of the positioning adapter plate 230.

[0065] There are multiple scraping teeth 560 evenly distributed in the circumferential direction of the smoke on the return material turntable 520, and the tooth height of the scraping teeth 560 is equal to the distance between the return material turntable 520 and the arc-shaped inner wall of the return material box 510, that is, one end of the scraping teeth 560 is in contact with the inner wall of the return material box 510, and a recovery groove 550 is formed on the right side of the return material box 510. The recovery groove 550 is connected to the inner cavity of the return material box 510, one end of the negative pressure return material pipe 530 is connected to the recovery groove 550, and the other end of the negative pressure return material pipe 530 is connected to the silo 410, so that the filler in the recovery groove 550 enters the silo 410 under the action of negative pressure, thereby realizing the secondary utilization of the residual material.

[0066] Specifically, the width of the forming paper 600 is 17-39 mm, and the basis weight is 20-80 g / m 2 The shaping paper 600 is generally made of paper, but may also be made of transparent material.

[0067] The particles are spheres, cubes or other solid particles. The particles have at least one function of color, adsorption and reduction of tar, and aroma release. The particle size of the particles is 0.5-2.5 mm.

[0068] The working process of the molding equipment of the present invention is as follows:

[0069] The material rod segment 710 enters through the feed adapter disk 210, and the material rod segment 710 is located in the feed adapter groove 212 and is confined in the space between the feed adapter disk 210 and the feed arc surface 244. The feed adapter disk 210 rotates clockwise to transport the material rod segment 710 to the gap-eliminating adapter disk 220. The gap-eliminating adapter disk 220 rotates counterclockwise to transport the material rod segment 710 to the positioning adapter disk 230. After the material rod segment 710 passes through the positioning adapter disk 230, the material rod segment 710 is arranged on the bottom molding paper 600 at predetermined intervals and transported to the particle adding component 400.

[0070] Taking the cavity segment 720 with a length of 6 mm and the material rod segment 710 with a length of 24 mm as an example, the final cavity filler composite filter rod formed is a "12+6+24+6+24+6+24+6+12" sequence of material rod segment + cavity segment + material rod segment with a length of 120 mm.

[0071] Granular materials to be added are placed in the silo 410 . The granular materials are generally solid spherical particles with a particle size of 0.5-2.5 mm. The silo 410 transports the particles to the funnel 430 through the conveying pipe 420 .

[0072] During the rotation of the return material turntable 520, the particles remaining on the material rod segment 710 come into contact with the scraper 560, and the particles are scraped into the recovery tank 550. The volume of the recovery tank 550 is 2-15 cm 3 There is a negative pressure in the recovery tank 550, and the negative pressure is -0.5MPa-0.04MPa. The particles in the recovery tank 550 enter the silo 410 through the negative pressure return pipe 530, realizing the recycling of the particles.

[0073] Compared with the existing technology, this application has at least the following beneficial technical effects:

[0074] This application utilizes the existing filter rod forming unit. By installing a material rod arrangement component, a particle addition component and a residual material recovery component, the material rod component can realize the transportation, arrangement and positioning of the material rod segments and the positioning of the cavity segments. The particle addition component can realize the stable addition of granular materials. The residual material recovery component can realize the recycling of residual particles on the cavity surface. It not only realizes the forming of cavity filler composite filter rods, but also has a simple structure, strong operability, and is convenient for large-scale application.

[0075] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A cavity filler composite filter rod forming device, characterized in that: The invention comprises a material rod conveyor belt (100), a material rod arrangement assembly (200), a smoke gun (300) and a particle addition assembly (400), wherein the material rod arrangement assembly (200) is installed between the material rod conveyor belt (100) and the smoke gun (300), and the particle addition assembly (400) is installed above the smoke gun (300); The material rod arrangement assembly (200) comprises a feed transfer disc (210), a gap-eliminating transfer disc (220) and a positioning transfer disc (230), wherein the feed transfer disc (210) is located above the unloading end of the material rod conveyor belt (100), the positioning transfer disc (230) is located above the feeding end of the smoke gun (300), the gap-eliminating transfer disc (220) is located between the feed transfer disc (210) and the positioning transfer disc (230), and the gap-eliminating transfer disc (220) rotates in the opposite direction to the feed transfer disc (210) and the positioning transfer disc (230); The feed transfer disc (210) is formed with a feed transfer groove (212), the gap-eliminating transfer disc (220) is formed with a gap-eliminating transfer groove (222), and the positioning transfer disc (230) is formed with a positioning transfer groove (232). A feed arcuate surface (244) matching with the feed transfer disc (210) and a positioning arcuate surface (245) matching with the positioning transfer disc (230) are installed below the gap-eliminating transfer disc (220), and a gap-eliminating arcuate surface (246) matching with the gap-eliminating transfer disc (220) is installed above the gap-eliminating transfer disc (220); The particle addition assembly (400) includes a silo (410), a feed pipe (420) and a funnel (430). The funnel (430) is located directly above the shaping paper (600) of the cigarette gun (300). The silo (410) is installed above the funnel (430). The feed pipe (420) is connected between the silo (410) and the funnel (430).

2. The cavity filler composite filter rod forming device according to claim 1, characterized in that: The molding equipment also includes a residual material recovery component (500), and the residual material recovery component (500) includes a return material box (510), a return material turntable (520), and a negative pressure return material pipe (530). The return material box (510) is installed above the cigarette gun (300), and the bottom of the return material box (510) is provided with a return material port (540) that matches the molding paper (600). The return material turntable (520) is rotatably installed in the inner cavity of the return material box (510), and a recovery trough (550) is formed on one side of the return material box (510), and the recovery trough (550) is connected to one end of the negative pressure return material pipe (530).

3. The cavity filler composite filter rod forming device according to claim 2, characterized in that: The other end of the negative pressure return pipe (530) is connected to the silo (410).

4. The cavity filler composite filter rod forming device according to claim 1, characterized in that: The angular velocities of the feed adapter disc (210), the backlash-eliminating adapter disc (220), and the positioning adapter disc (230) are equal, and the linear velocities of the feed adapter disc (210), the backlash-eliminating adapter disc (220), and the positioning adapter disc (230) gradually decrease.

5. The cavity filler composite filter rod forming device according to claim 4, characterized in that: The feed transfer disc (210) is circumferentially evenly provided with a plurality of feed transfer teeth (211), and a feed transfer groove (212) is formed between two adjacent feed transfer teeth (211); the anti-backlash transfer disc (220) is circumferentially evenly provided with a plurality of anti-backlash transfer teeth (221), and an anti-backlash transfer groove (222) is formed between two adjacent anti-backlash transfer teeth (221); the positioning transfer disc (230) is circumferentially provided with a plurality of positioning transfer teeth (231), and a positioning transfer groove (232) is formed between two adjacent positioning transfer teeth (231); the groove width of the anti-backlash transfer groove (222) is greater than the length of the material rod segment (710) and smaller than the groove width of the feed transfer groove (212), and the groove width of the positioning transfer groove (232) is equal to the length of the material rod segment (710).

6. The cavity filler composite filter rod forming device according to claim 5, characterized in that: The tooth width of the feed transfer teeth (211) and the backlash-eliminating transfer teeth (221) is 5 mm, the groove width of the feed transfer groove (212) and the backlash-eliminating transfer groove (222) is 28-30 mm, the tooth width of the positioning transfer teeth (231) is 6 mm, and the groove width of the positioning transfer groove (232) is 24 mm.

7. The cavity filler composite filter rod forming device according to claim 2, characterized in that: The positioning adapter disc (230) comprises a first rotating wheel (233), a second rotating wheel (234) and a toothed chain (235); the first rotating wheel (233) is installed at the lower side of the gap-eliminating adapter disc (220); the second rotating wheel (234) is installed between the first rotating wheel (233) and the funnel (430); the lowest point of the first rotating wheel (233) is at the same height as the lowest point of the second rotating wheel (234); the toothed chain (235) is transmission-connected to the first rotating wheel (233) and the second rotating wheel (234); and the bottom of the toothed chain (235) is in a horizontal state.

8. The cavity filler composite filter rod forming device according to claim 7, characterized in that: A plurality of scraping teeth (560) are distributed circumferentially on the return material turntable (520), and the tooth height of the scraping teeth (560) is equal to the distance between the return material turntable (520) and the inner wall of the return material box (510), and the recovery trough (550) is arranged on one side of the return material box (510) and communicated with the inner cavity of the return material box (510).

9. The cavity filler composite filter rod forming device according to claim 8, characterized in that: The rotation direction of the return material turntable (520) is opposite to the rotation direction of the positioning transfer disk (230).

10. The cavity filler composite filter rod forming device according to claim 1, characterized in that: The funnel (430) is smaller at the top and larger at the bottom, and a dividing baffle (440) is installed in the funnel (430), and 2-5 dividing baffles (440) are distributed at intervals along the conveying direction of the material rod segment (710).

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