A cigarette filter production device and process

Abstract

The application relates to a cigarette filter production device, which comprises an opening mechanism, a pre-wrapping mechanism, a processing mechanism, a re-wrapping mechanism and a cutting and collecting mechanism arranged on a rack in sequence, the processing mechanism comprises a transmission assembly arranged on the rack and consistent with the advancing speed of filter rods, a smoke separating assembly arranged on the transmission assembly and used for separating the filter rods, and a filling assembly arranged on the transmission assembly and used for filling the filter rods with particles; the application can bond and combine two semicircular filter rods with different tastes into a cigarette filter rod, has the taste adjusting function, can meet the needs of different consumer groups, can disturb the smoke in the semicircular filter rods, improves the filtering effect, can premix the smokes with two different tastes in the cigarette filter rod, improves the smoking taste, and solves the technical problems that the existing cigarette filter rod has a simple structure, a single taste and no taste adjusting function.

Description

Technical Field

[0001] This invention relates to the field of cigarette manufacturing technology, and in particular to a cigarette filter rod manufacturing apparatus and process. Background Technology

[0002] Cigarette smoke contains a variety of substances harmful to human health, such as tar, carbon monoxide, and nicotine. How to remove these harmful components has always been a concern. Since the invention of crepe paper and cellulose soft filler to manufacture cigarette filter rods in 1925, the use of feeder filter rods has gradually become the mainstream method for reducing tar and harm in cigarettes. At present, the main materials for preparing cigarette filter rods are cellulose acetate, polypropylene fiber, and paper, among which cellulose acetate filter rods are the most widely used.

[0003] Patent document CN2023111693652 discloses a shaped mandrel, a forming device, a hollow filter rod, and a preparation method. The shaped mandrel includes an inner core, an outer tube, a material injection mechanism, and a driving mechanism. The inner core passes through the outer tube and its first end extends out of the outer tube. The inner core has a cavity, and its first end has a discharge hole communicating with the cavity. The material injection mechanism communicates with the cavity and can deliver material to the cavity. The driving mechanism is connected to the second end of the inner core and can drive the inner core to rotate so that when forming the hollow filter rod, the material is applied to the inner surface of the hollow filter rod through the discharge hole.

[0004] However, in practical use, the inventors discovered that cigarettes typically only have a single flavor. To overcome this limitation, flavor capsules were added to the cigarette filter to allow smokers to change the flavor during inhalation. However, most commercially available cigarettes currently contain only one flavor capsule and lack the ability to adjust the flavor. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a cigarette filter rod production device and process that can bond and combine two semi-circular filter rods of different flavors into a cigarette filter rod with flavor adjustment function, which can meet the needs of different consumer groups. It can turbulent the smoke inside the semi-circular filter rod to improve the filtration effect, and can premix the smoke of two different flavors inside the cigarette filter rod to improve the smoking experience. Thus, it solves the technical problems of existing cigarette filter rods having simple structure, single flavor, and no flavor adjustment function.

[0006] To address the above technical issues, the following technical solution is adopted:

[0007] A cigarette filter rod production apparatus includes an opening mechanism, a pre-rolling mechanism, a processing mechanism, a re-rolling mechanism, and a cutting and collecting mechanism arranged sequentially on a frame.

[0008] The processing mechanism includes a transmission component mounted on the frame and moving at the same speed as the filter rod, a smoke-blocking component mounted on the transmission component and used to separate the filter rod, and a filling component mounted on the transmission component and used to fill the filter rod with particulate matter.

[0009] The opening mechanism unfolds two sets of cellulose acetate bundles. The pre-winding mechanism wraps the two sets of cellulose acetate bundles, after applying plasticizer, into semi-circular filter rods with a semi-circular cross-section. Before wrapping, two sets of flavored threads with different flavors are spirally wound around the outer wall of the semi-circular filter rod. The conveying component carries the smoke-blocking component and the filling component, and moves forward synchronously with the semi-circular filter rod. The smoke-blocking component inserts an air-blocking sheet into a designated position inside the semi-circular filter rod. The filling component fills the designated position inside the semi-circular filter rod with particulate matter. The re-winding mechanism merges the two sets of semi-circular filter rods and wraps them into a circular filter rod. Before merging and wrapping, an air-blocking paper is bonded between the two sets of semi-circular filter rods. The cutting and collecting mechanism cuts and collects the circular filter rod.

[0010] Preferably, the transmission assembly includes a connecting frame mounted on the frame, two sets of material conveying channels mounted on the connecting frame for conveying semi-circular filter rods, a processing window opened on the side of the material conveying channels, a conveyor belt mounted on the connecting frame via two sets of drive rollers, and an intermediate partition mounted on the conveyor belt.

[0011] Preferably, the smoke-proof assembly is divided into several groups and alternately arranged on both sides of the middle partition, including a slotting unit arranged on the middle partition and a pushing unit arranged on the slotting unit.

[0012] The grooving unit includes a horizontal rod that passes through and slides on the intermediate partition plate, a first elastic element disposed between one end of the horizontal rod and the side of the intermediate partition plate, a U-shaped frame that passes through and slides on the other end of the horizontal rod, a baffle plate disposed on the horizontal rod and attached to the side of the intermediate partition plate, a second elastic element disposed between the side of the baffle plate and the U-shaped frame, two sets of symmetrical L-shaped support rods that pass through and slide on the side wall of the U-shaped frame and whose lower ends contact the conveyor belt, a vertical plate disposed at one end of the L-shaped support rod, a semi-circular cutter with a slope disposed on the vertical plate, and a cutter disposed on the side of the vertical plate. The components include: a third elastic element between the surface and the L-shaped support rod; a strip plate disposed at one end of the horizontal rod and located inside the U-shaped frame; two sets of L-shaped hangers symmetrically disposed at the bottom of the strip plate; a drive wedge block disposed at the end of the L-shaped hanger block and used to drive the L-shaped support rod to move to both sides to open two sets of semi-circular cutters; two sets of limiting channels symmetrically disposed on the conveyor belt and used to restrict the movement of the lower end of the L-shaped support rod; a sliding cavity opened in the inner wall of the limiting channel; a limiting wedge block slidably disposed inside the sliding cavity; a fourth elastic element disposed between the limiting wedge block and the inner wall of the sliding cavity; and an upper extension rod disposed at the top of the baffle plate.

[0013] Preferably, the pushing unit includes a pushing channel disposed inside the U-shaped frame by a fixing rod, a push rod disposed on the strip, a push bar disposed at the end of the push rod and adapted to the pushing channel, an upper clamping plate disposed at the top of the pushing channel and attached to the upper surface of the upright plate, a lower clamping plate disposed at the bottom of the pushing channel and attached to the lower surface of the upright plate, a first material box disposed on the upper clamping plate and containing an air-insulating sheet, and a limiting slide groove formed on the upper surface of the lower clamping plate and the lower surface of the upper clamping plate for limiting the vertical movement of the air-insulating sheet.

[0014] Preferably, the filling component is divided into several groups symmetrically arranged on both sides of the middle partition and located between two adjacent smoke-proof components. It includes a grooving unit arranged on the side of the middle partition, a material injection unit arranged on the grooving unit, and a waste recycling unit arranged on the side of the middle partition.

[0015] The trenching unit includes a Z-shaped support plate disposed on the side of the intermediate partition, a limiting strip hole opened on the Z-shaped support plate, a slider slidably disposed inside the limiting strip hole, a fifth elastic element disposed between the side of the slider and the end of the limiting strip hole, a sleeve that passes through and is raised and lowered on the slider, a semi-circular trenching box disposed at the lower end of the sleeve, a semi-annular recessed cavity opened at the bottom of the semi-circular trenching box, a separating blade disposed at one end of the semi-annular recessed cavity, and a first gear disposed at the upper end of the sleeve.

[0016] The injection unit includes an L-shaped support plate slidably mounted on the Z-shaped support plate, an injection pipe mounted at the bottom of the L-shaped support plate and lined inside the sleeve, an injection channel located at the lower end of the injection pipe and inside the semi-circular hopper, an injection port located at the bottom of the injection channel and above the semi-annular sinking cavity, an injection notch located at the other end of the semi-annular sinking cavity and below the injection port, a second material box containing granules mounted on the L-shaped support plate, a second gear mounted on the injection pipe, a first stepper motor mounted on the L-shaped support plate, a third gear mounted on the output shaft of the first stepper motor and used to drive the first gear, a second stepper motor mounted on the L-shaped support plate, a fourth gear mounted on the output shaft of the second stepper motor and used to drive the second gear, and a side extension rod mounted on the outer wall of the second material box.

[0017] Preferably, the opening mechanism includes two sets of drums wound with cellulose acetate bundles on the frame, and two sets of guide rings, a first opener, a guide roller, a second opener, a pre-opening roller, an extension roller, a third opener, and a plasticizer application system, which are respectively arranged sequentially on the frame.

[0018] Preferably, the pre-winding mechanism includes a pre-winding assembly disposed on the frame for winding the semi-circular filter rod, and a winding assembly disposed on the pre-winding assembly for spirally winding incense thread around the outer wall of the semi-circular filter rod.

[0019] Preferably, the rewinding mechanism includes two sets of parallel channels disposed on the connecting frame and respectively connected to the output end of the material conveying channel, a merging channel disposed on the connecting frame for connecting the junction of the two parallel channels, a second rotary disk disposed on the connecting frame for driving the wrapping paper to wrap the circular filter rod at the output end of the merging channel, a reel disposed on the connecting frame and wound with air-barrier paper, and two sets of coating rollers disposed on the connecting frame for pulling the air-barrier paper to the junction of the two parallel channels.

[0020] Preferably, the cutting and collecting mechanism includes a cutting component disposed on the frame and located at the output end of the merging channel, and a collecting component disposed on the frame for collecting filter rods.

[0021] As a preferred embodiment, a process for a cigarette filter rod manufacturing apparatus includes the following steps:

[0022] Step 1, opening and spreading process: the two sets of cellulose acetate bundles pass through the first opener, the second opener and the third opener in sequence to gradually spread out. After spreading out, the cellulose acetate bundles are sprayed with plasticizer by the plasticizer application system.

[0023] Step 2, pre-winding process: After the cellulose acetate bundle is sprayed with plasticizer, it enters the tobacco tongue through the bundling roller and is shaped into a semi-circular filter rod through the forming channel. The winding assembly spirals the incense thread around the outer wall of the semi-circular filter rod. The pre-winding assembly initially winds the semi-circular filter rod.

[0024] Step 3, processing procedure: After initial wrapping, the semi-circular filter rod enters the conveying channel. As the semi-circular filter rod moves forward in the conveying channel, the smoke-blocking component inserts an air-blocking sheet into a designated position inside the semi-circular filter rod, and the filling component fills the designated position inside the semi-circular filter rod with particulate matter.

[0025] Step four, the re-winding process: the processed semi-circular filter rods enter the parallel track channel, the glue-coating roller pulls the air-barrier paper to the junction of the two parallel track channels, and glue is applied to both surfaces of the air-barrier paper. After the two sets of semi-circular filter rods enter the merging channel, the air-barrier paper is bonded to the connection of the two sets of semi-circular filter rods. The second rotating disc performs a second wrapping of the circular filter rods coming out of the merging channel.

[0026] Step 5, the cutting and collection process, involves cutting the rolled-up circular filter rods into sections, collecting them uniformly, then packing them into trays, solidifying them, and storing them in the warehouse.

[0027] The beneficial effects of this invention are:

[0028] (1) In this invention, by setting a pre-rolling mechanism and a processing mechanism, on the one hand, two semi-circular filter rods with different flavors can be bonded together to form a cigarette filter rod. By crushing the gas-isolating sheet inside one of the semi-circular filter rods, one can smoke cigarettes of that flavor. The flavor selection is more flexible and diverse, which can meet the needs of different consumer groups. On the other hand, particles can be filled in the same position of the two semi-circular filter rods. For a single semi-circular filter rod, the particles can turbulent the smoke inside the semi-circular filter rod, increase the residence time of the smoke inside the semi-circular filter rod, and improve the filtration effect of the cigarette filter rod. For the two semi-circular filter rods, after crushing the gas-isolating sheet inside the two semi-circular filter rods, the particles of the two semi-circular filter rods are squeezed, so that the particles interact with each other and break the gas-isolating paper bonded between the two semi-circular filter rods. The smoke of different flavors in the two semi-circular filter rods can be pre-mixed inside the cigarette filter rod by the mixing of the particles in the two semi-circular filter rods, which improves the smoking experience.

[0029] (2) In this invention, by setting the smoke-blocking component and the transmission component together, on the one hand, the gas-blocking plate can be automatically inserted into the designated position of the semi-circular filter rod, so as to avoid the gas-blocking plate cutting the aroma thread spirally wrapped around the outer wall of the semi-circular filter rod, thus preserving the flavor continuity of the aroma thread and ensuring that the gas-blocking plate can completely block and block the semi-circular filter rod; on the other hand, the spring force of the groove opened by the semi-circular cutter inside the semi-circular filter rod when it is reset can be used to clamp and fix the gas-blocking plate, so as to prevent the gas-blocking plate from falling out of the groove inside the semi-circular filter rod and increase the firmness of the gas-blocking plate insertion.

[0030] (3) In this invention, by setting up filling components and transmission components in combination, on the one hand, it can automatically fill particles at designated positions of the semi-circular filter rod, avoiding the semi-circular digging box from breaking the spiral winding of the fragrance thread on the outer wall of the semi-circular filter rod, and can inject particles into the cavity during the digging process, with high automation and good structural linkage; on the other hand, it can automatically discharge the waste generated when the semi-circular sinking cavity digs out the cavity inside the semi-circular filter rod, ensuring that the semi-circular sinking cavity can be reused continuously, and particles can be continuously filled into the semi-circular filter rod. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of a cigarette filter rod production device.

[0033] Figure 2 This is a schematic diagram of the opening mechanism.

[0034] Figure 3 This is a schematic diagram of the pre-winding mechanism.

[0035] Figure 4 for Figure 3 Top view of the structure.

[0036] Figure 5 This is a schematic diagram of the winding assembly.

[0037] Figure 6 This is a schematic diagram of the rewinding mechanism.

[0038] Figure 7 This is a schematic diagram of the processing mechanism.

[0039] Figure 8 This is a schematic diagram of the transmission component.

[0040] Figure 9 This is a schematic diagram of the smoke isolation assembly.

[0041] Figure 10 A schematic diagram of the transmission system for the slotting unit.

[0042] Figure 11 This is a schematic diagram of the limiting channel.

[0043] Figure 12 This is a structural diagram of the filling component.

[0044] Figure 13 A schematic diagram of the transmission system for the trenching unit.

[0045] Figure 14 This is a schematic diagram of the structure of a semi-circular hollow box.

[0046] Figure 15 This is a schematic diagram of the semi-annular sunken cavity.

[0047] Figure 16 This is a schematic diagram of the internal structure of the injection channel.

[0048] Figure 17 This is a schematic diagram of the waste recycling unit.

[0049] Figure 18 This is a structural diagram of a filter rod product.

[0050] Figure 19 This is a schematic diagram of the internal structure of the filter rod product.

[0051] Figure 20 This is a cross-sectional view of the filter rod product along its axial direction.

[0052] Figure 21 This is a schematic diagram of the process for a cigarette filter rod production device. Detailed Implementation

[0053] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0054] Example 1

[0055] like Figure 1-20 As shown, a cigarette filter rod production device includes an opening mechanism 2, a pre-rolling mechanism 3, a processing mechanism 4, a re-rolling mechanism 5, and a cutting and collecting mechanism 6, which are sequentially arranged on a frame 1.

[0056] The processing mechanism 4 includes a transmission component 41 disposed on the frame 1 and with the same forward speed as the filter rod, a smoke-blocking component 42 disposed on the transmission component 41 and used to separate the filter rod, and a filling component 43 disposed on the transmission component 41 and used to fill the filter rod with particulate matter.

[0057] The opening mechanism 2 unfolds two sets of cellulose acetate bundles. The pre-winding mechanism 3 wraps the two sets of cellulose acetate bundles after applying plasticizer into semi-circular filter rods with a semi-circular cross-section. Before wrapping, two sets of flavored threads 7 with different flavors are spirally wound around the outer wall of the semi-circular filter rod. The conveying component 41 carries the smoke-blocking component 42 and the filling component 43 and moves forward synchronously with the semi-circular filter rod. The smoke-blocking component 42 inserts the gas-blocking sheet 8 into a designated position inside the semi-circular filter rod. The filling component 43 fills the designated position inside the semi-circular filter rod with particulate matter 9. The re-winding mechanism 5 merges the two sets of semi-circular filter rods and wraps them into a circular filter rod. Before merging and wrapping, the gas-blocking paper 10 is bonded between the two sets of semi-circular filter rods. The cutting and collecting mechanism 6 cuts and collects the circular filter rod.

[0058] The existing filter rod process is cellulose acetate bundle → opening and spreading → wrapping → cutting → tray (boxing) → curing and warehousing (high-rise warehouse), during which a plasticizer is applied;

[0059] It should be noted that the air-blocking sheet 8 and the air-blocking paper 10 are made of a thin and easily crushed material, and can prevent gas from passing through.

[0060] It is worth mentioning that the filling particles 9 are one of the following: tobacco flavoring particles, tobacco moisturizing particles, tobacco tar-reducing particles, tobacco flavoring and moisturizing particles, and tobacco flavoring and tar-reducing particles, which can better improve the functional effect of cigarette filter rods.

[0061] In this embodiment, the pre-wrapping mechanism 3 and the processing mechanism 4 work together to, on the one hand, bond two semi-circular filter rods of different flavors together to form a cigarette filter rod. By crushing the air-blocking sheet 8 inside one of the semi-circular filter rods, one can smoke cigarettes of that flavor, making the flavor selection more flexible and diverse, and meeting the needs of different consumer groups. On the other hand, particulate matter can be filled in the same position of the two semi-circular filter rods. For a single semi-circular filter rod, the particulate matter can turbulentize the smoke inside the semi-circular filter rod, increasing the residence time of the smoke inside the semi-circular filter rod and improving the filtration effect of the cigarette filter rod. For the two semi-circular filter rods, after crushing the air-blocking sheet 8 inside the two semi-circular filter rods, the particulate matter in the two semi-circular filter rods is squeezed, causing the particulate matter to interact and break the air-blocking paper 10 bonded between the two semi-circular filter rods. The smoke of different flavors in the two semi-circular filter rods can be pre-mixed inside the cigarette filter rod by the particulate matter in the two semi-circular filter rods, which improves the smoking experience.

[0062] In detail, firstly, the two sets of cellulose acetate bundles are gradually expanded by passing through the first opener 23, the second opener 25, and the third opener 28 respectively. After expansion, the cellulose acetate bundles are sprayed with plasticizer by the plasticizer application system 29. Then, the cellulose acetate bundles sprayed with plasticizer pass through the bundling roller 312 into the cigarette tongue 313, and are shaped into a semi-circular filter rod by the forming channel 314. The winding assembly 32 spirals the incense thread around the outer wall of the semi-circular filter rod, and the pre-winding assembly 31 initially winds the semi-circular filter rod. Then, the pre-winded semi-circular filter rod enters the conveying channel 412. During the advance of the semi-circular filter rod in the conveying channel 412, the insulation... The smoke assembly 42 inserts an air-barrier sheet into a designated position inside the semi-circular filter rod, and the filling assembly 43 fills the designated position inside the semi-circular filter rod with particulate matter. Then, the processed semi-circular filter rod enters the parallel channel 51, and the glue roller 55 pulls the air-barrier paper to the junction of the two parallel channels 51 and applies glue to both surfaces of the air-barrier paper. After the two sets of semi-circular filter rods enter the merging channel 52, the air-barrier paper is bonded to the connection of the two sets of semi-circular filter rods. The second rotating disc 53 performs a second wrapping of the circular filter rods coming out of the merging channel 52. Then, the wrapped circular filter rods are cut into sections, collected uniformly, and then packed into trays, cured, and stored in the warehouse.

[0063] Preferably, the formed circular filter rod is as follows: Figure 18-20 As shown, firstly, two semi-circular filter rods are pre-wound with forming paper. Different flavored fragrance threads are spirally wound on the outer walls of the two semi-circular filter rods. Air-isolating sheets 8 are inserted at different positions on the two semi-circular filter rods. Particles are filled along the annular cavity at the same position on the two semi-circular filter rods. The two semi-circular filter rods with different flavors are bonded together with air-isolating paper 10. Then, the two combined semi-circular filter rods are wrapped with forming paper to form a cigarette filter rod.

[0064] It is worth mentioning that when using this cigarette filter, you can crush the air-blocking sheet 8 inside one of the semicircular filter rods as needed to smoke that flavor of cigarette. For a single semicircular filter rod, after the smoke flows from the semicircular filter rod into the annular cavity filled with particles, the flow velocity of the smoke from the gaps between adjacent particles is greater than the flow velocity from inside the semicircular filter rod. Therefore, the particles have a turbulent effect on the smoke inside the semicircular filter rod, increasing the residence time of the smoke inside the semicircular filter rod and improving the filtration effect of the cigarette filter rod. For both semicircular filter rods as a whole, squeezing the annular cavity at the same position of the two semicircular filter rods causes the particles to interact and break the air-blocking paper 10 bonded between the two semicircular filter rods, allowing air to pass between the two semicircular filter rods. The smoke of different flavors in the two semicircular filter rods can be pre-mixed inside the cigarette filter rod by the mixing of the particles in the two semicircular filter rods, which improves the smoking taste after the two different flavors of smoke are mixed.

[0065] Furthermore, such as Figure 1-2 As shown, the opening mechanism 2 includes two sets of spools 21 with cellulose acetate bundles wound on the frame 1, and two sets of guide rings 22, first opener 23, guide roller 24, second opener 25, pre-opening roller 26, extension roller 27, third opener 28, and plasticizer application system 29, which are correspondingly and sequentially arranged on the frame 1.

[0066] It should be noted that the structure and function of the first opener 23, the second opener 25, the third opener 28 and the plasticizer application system 29 are all existing technologies and will not be described in detail here.

[0067] In this embodiment, the opening mechanism 2 can simultaneously open and apply plasticizer to two sets of cellulose acetate bundles.

[0068] In detail, the two sets of cellulose acetate bundles released from the drum 21 pass through the guide ring 22, the first opener 23, the guide roller 24, the second opener 25, the pre-opening roller 26, the stretching roller 27, and the third opener 28 in sequence to gradually expand the width. After expansion, the cellulose acetate bundles are sprayed with plasticizer by the plasticizer application system 29.

[0069] Furthermore, such as Figure 1 and Figure 3-5 As shown, the pre-winding mechanism 3 includes a pre-winding assembly 31 disposed on the frame 1 for winding a semi-circular filter rod, and a winding assembly 32 disposed on the pre-winding assembly 31 for spirally winding incense thread around the outer wall of the semi-circular filter rod.

[0070] The pre-wrap assembly 31 includes a conveying roller 311 disposed on the frame 1 and located at the output end of the plasticizer application system 29, two sets of bundling rollers 312 disposed on the frame 1, two sets of tongues 313 disposed on the frame 1 and located on one side of the bundling rollers 312, a forming channel 314 disposed at the output end of the tongues 313 and used for forming semi-circular filter rods, two sets of first docking channels 315 disposed on the frame 1 and located on one side of the forming channel 314, two sets of second docking channels 316 disposed on the frame 1 and docking with the conveying channel 412, and two sets of first rotary discs 317 disposed on the frame 1 and carrying wrapping paper. The first rotary discs 317 drive the wrapping paper to wrap the semi-circular filter rods at the gap between the first docking channels 315 and the second docking channels 316.

[0071] The winding assembly 32 includes two sets of cover rings 321 rotatably disposed on the outer wall of the forming channel 314, two sets of toothed rings 322 disposed on the outer wall of the cover rings 321 via outer edge rods and mutually engaging, a fragrance thread disc 323 disposed inside the toothed rings 322 and wound with fragrance thread, and a guide ring 324 disposed on the outer wall of the cover rings 321 and used to guide the fragrance thread to the gap between the forming channel 314 and the first docking channel 315. One of the toothed rings 322 works synchronously with a drive roller of the conveyor belt 414 through the transmission of a gear set 325.

[0072] It should be noted that the gear set 325 includes two bevel gears and a driven gear. The drive roller of the conveyor belt 414 drives the gear ring 322 to rotate synchronously through the two bevel gears and the driven gear. The gear set 325 adjusts the rotation speed of the gear ring 322, thereby adjusting the peak and trough positions of the incense thread spirally wound on the outer wall of the semi-circular filter rod. At the same time, it adjusts the position of the smoke-blocking component 42 inserting the gas-blocking plate 8 into the semi-circular filter rod, and also adjusts the position of the filling component 43 filling the particulate matter 9 into the semi-circular filter rod, thus preventing the smoke-blocking component 42 and the filling component 43 from cutting the incense thread on the outer wall of the semi-circular filter rod.

[0073] It is worth mentioning that the structure and function of the first rotating disk 317 and the second rotating disk 53 are existing technologies and will not be described in detail here.

[0074] In this embodiment, by using the pre-wrapping assembly 31 and the winding assembly 32 together, the cellulose acetate bundle can be shaped into a semi-circular filter rod, and different flavored fragrance threads are spirally wound on the outer walls of the two semi-circular filter rods, and then the semi-circular filter rods are pre-wrapped.

[0075] In detail, after the cellulose acetate bundle is sprayed with plasticizer, it enters the tobacco tongue 313 through the bundling roller 312 and is shaped into a semi-circular filter rod through the forming channel 314. As the semi-circular filter rod continues to be conveyed forward to the first docking channel 315, a drive roller of the conveyor belt 414 drives two toothed rings 322 to rotate through the gear set 325, so that the incense thread disc 323 revolves around the semi-circular filter rod, so that the incense thread is continuously spirally wound on the outer wall of the semi-circular filter rod. As the semi-circular filter rod continues to be conveyed forward from the first docking channel 315 to the second docking channel 316, the first rotating disc 317 releases wrapping paper to pre-wrap the semi-circular filter rod.

[0076] Furthermore, such as Figure 1 and Figure 6-11 As shown, the transmission assembly 41 includes a connecting frame 411 mounted on the frame 1, two sets of conveying channels 412 mounted on the connecting frame 411 for conveying semi-circular filter rods, a processing window 413 opened on the side of the conveying channel 412, a conveyor belt 414 mounted on the connecting frame 411 via two sets of drive rollers, and an intermediate partition 415 mounted on the conveyor belt 414.

[0077] The smoke-proof component 42 is divided into several groups and alternately arranged on both sides of the middle partition 415. It includes a slotting unit 421 arranged on the middle partition 415 and a pushing unit 422 arranged on the slotting unit 421.

[0078] The slotting unit 421 includes a horizontal rod 4211 that passes through and slidably disposed on the intermediate partition 415, a first elastic member disposed between one end of the horizontal rod 4211 and the side of the intermediate partition 415, a U-shaped frame 4212 that passes through and slidably disposed at the other end of the horizontal rod 4211, a baffle 4213 disposed on the horizontal rod 4211 and attached to the side of the intermediate partition 415, and a grooved element disposed between the side of the baffle 4213 and the U-shaped frame 4212. The second elastic element, two sets of symmetrically connected and slidably arranged L-shaped support rods 4214 on the side wall of the U-shaped frame 4212 with their lower ends contacting the conveyor belt 414, a vertical plate 4215 arranged at one end of the L-shaped support rod 4214, a semi-circular cutter 4216 with a slope arranged on the vertical plate 4215, a third elastic element arranged between the side of the vertical plate 4215 and the L-shaped support rod 4214, and an element arranged at one end of the horizontal rod 4211 and located in the U-shaped frame 4212. The internal components include: a strip plate 4217; two sets of L-shaped hangers 4218 symmetrically arranged at the bottom of the strip plate 4217; drive wedges 4219 located at the ends of the L-shaped hangers 4218 and used to drive the L-shaped support rods 4214 to move to both sides to open the two sets of semi-circular cutters 4216; two sets of limiting channels 42191 symmetrically arranged on the conveyor belt 414 and used to restrict the movement of the lower ends of the L-shaped support rods 4214; and a sliding cavity formed on the inner wall of the limiting channels 42191. The sliding cavity includes a limiting wedge 42192, a fourth elastic element disposed between the limiting wedge 42192 and the inner wall of the sliding cavity, an upper extension rod 42193 disposed on the top of the baffle 4213, a first suspended plate 42194 disposed on the frame 1 by a fixing rod and located above the middle partition plate 415, and two sets of first limiting tracks 42195 alternately disposed on both sides of the first suspended plate 42194 for driving the upper extension rod 42193 to move.

[0079] It is worth mentioning that the function of the limiting channel 42191 is twofold: firstly, to restrict the forward movement of the L-shaped support rod 4214; and secondly, to prevent the lower end of the L-shaped support rod 4214 from advancing to a position where... Figure 10When positioned as shown, the semi-circular cutter 4216 is fully inserted into the semi-circular filter rod, ensuring that the semi-circular cutter 4216 is inserted to the specified depth inside the semi-circular filter rod. This prevents the semi-circular cutter 4216 from cutting through the forming paper wrapped around the arc-shaped part of the outer wall of the semi-circular filter rod, ensuring that the air-blocking plate 8 completely blocks the semi-circular filter rod. Secondly, when the driving wedge 4219 drives the lower end of the L-shaped support rod 4214 to move to both sides within the limiting channel 42191 to open the two semi-circular cutters 4216, allowing the air-blocking plate 8 to be inserted into the semi-circular filter rod... The space inside the rod is opened to facilitate the insertion of the air-insulating plate 8 into the semi-circular filter rod; after the lower end of the L-shaped support rod 4214 disengages from the limiting wedge 42192 of the limiting channel 42191, the limiting wedge 42192 resets to block the lower end of the L-shaped support rod 4214 from moving inward, so as to prevent the L-shaped support rod 4214 from moving inward with the semi-circular cutter 4216 when the semi-circular cutter 4216 disengages from the semi-circular filter rod for reset, thereby preventing the two semi-circular cutters 4216 from clamping the air-insulating plate 8 out of the semi-circular filter rod;

[0080] The pushing unit 422 includes a pushing channel 4221 set inside the U-shaped frame 4212 by a fixing rod, a push rod 4222 set on the strip 4217, a push bar 4223 set at the end of the push rod 4222 and adapted to the pushing channel 4221, an upper clamping plate 4224 set at the top of the pushing channel 4221 and attached to the upper surface of the upright plate 4215, a lower clamping plate 4225 set at the bottom of the pushing channel 4221 and attached to the lower surface of the upright plate 4215, a first material box 4226 set on the upper clamping plate 4224 and containing an air-insulating sheet, and a limiting groove opened on the upper surface of the lower clamping plate 4225 and the lower surface of the upper clamping plate 4224 for limiting the vertical movement of the air-insulating sheet.

[0081] It should be noted that the shape and specifications of the air-blocking plate 8 are the same as the semi-circular cross-section of the semi-circular filter rod, ensuring that the air-blocking plate 8 can completely block the semi-circular filter rod.

[0082] In this embodiment, the smoke-blocking component 42 and the transmission component 41 work together to automatically insert the air-blocking plate 8 into the designated position of the semi-circular filter rod, preventing the air-blocking plate 8 from cutting the aroma thread spirally wound on the outer wall of the semi-circular filter rod, thus preserving the flavor continuity of the aroma thread and ensuring that the air-blocking plate 8 can completely block and block the semi-circular filter rod. On the other hand, the spring force of the semi-circular cutter 4216 when resetting the groove opened inside the semi-circular filter rod can be used to clamp and fix the air-blocking plate 8, preventing the air-blocking plate 8 from detaching from the groove inside the semi-circular filter rod and increasing the firmness of the insertion of the air-blocking plate 8.

[0083] In detail, the pre-wound semi-circular filter rod enters the conveying channel 412. The conveyor belt 414 drives the smoke-blocking assembly 42 and the semi-circular filter rod to move forward synchronously through the intermediate partition 415. After the smoke-blocking assembly 42 passes the position of the first limiting track 42195, the first limiting track 42195 drives the horizontal rod 4211, along with the U-shaped frame 4212 and the semi-circular cutter 4216, to move towards the semi-circular filter rod through the upper extension rod 42193. When the semi-circular cutter 4216 completely cuts into the interior of the semi-circular filter rod, it stops moving. The horizontal rod 4211 continues to move towards the semi-circular filter rod, causing the driving wedge 4219 at the lower end of the L-shaped hanging rod 4218 to drive the lower end of the L-shaped support rod 4214 in the limiting channel 42. The horizontal bar 4211 moves to both sides to open the two semi-circular cutters 4216, causing the semi-circular cutters 4216 to spread the cutting grooves to both sides. The horizontal bar 4211 continues to move towards the semi-circular filter rod, causing the push rod 4222 to push the air-blocking plate 8 in the feeding channel 4221 vertically into the spread cutting groove with the push bar 4223. Then, the smoke-blocking assembly 42 disengages from the position of the first limiting track 42195. Driven by the first elastic element, the horizontal bar 4211 moves the U-shaped frame 4212 and the semi-circular cutter 4216 to return to a horizontal position. After the semi-circular cutter 4216 disengages from the spread cutting groove, the rebound force of the cutting groove return clamps the air-blocking plate 8, thereby installing the air-blocking plate 8 inside the semi-circular filter rod.

[0084] Furthermore, such as Figure 6-7 and Figure 12-17 As shown, the filling component 43 is divided into several groups symmetrically arranged on both sides of the middle partition 415 and located between two adjacent smoke-proof components 42. It includes a grooving unit 431 arranged on the side of the middle partition 415, an injection unit 432 arranged on the grooving unit 431, and a waste recycling unit 433 arranged on the side of the middle partition 415.

[0085] The grooving unit 431 includes a Z-shaped support plate 4311 disposed on the side of the intermediate partition plate 415, a limiting strip hole opened on the Z-shaped support plate 4311, a slider 4312 slidably disposed inside the limiting strip hole, a fifth elastic element disposed between the side of the slider 4312 and the end of the limiting strip hole, a sleeve 4313 that passes through and is raised and lowered on the slider 4312, a semi-circular grooving box 4314 disposed at the lower end of the sleeve 4313, a semi-annular recessed cavity 4315 opened at the bottom of the semi-circular grooving box 4314, a separating blade 4316 disposed at one end of the semi-annular recessed cavity 4315, and a first gear 4317 disposed at the upper end of the sleeve 4313.

[0086] The injection unit 432 includes an L-shaped support plate 4321 slidably mounted on the Z-shaped support plate 4311, an injection pipe 4322 located at the bottom of the L-shaped support plate 4321 and lined inside the sleeve 4313, an injection channel 4323 located at the lower end of the injection pipe 4322 and inside the semi-circular hopper 4314, an injection port 4324 located at the bottom of the injection channel 4323 and above the semi-annular recessed cavity 4315, an injection notch 4325 located at the other end of the semi-annular recessed cavity 4315 and below the injection port 4324, a second material box 4326 containing granules mounted on the L-shaped support plate 4321, and a first material box 4326 located on the injection pipe 4322. The system includes a second gear 4327, a first stepper motor mounted on the L-shaped support plate 4321, a third gear 4328 mounted on the output shaft of the first stepper motor and used to drive the first gear 4317, a second stepper motor mounted on the L-shaped support plate 4321, a fourth gear 4329 mounted on the output shaft of the second stepper motor and used to drive the second gear 4327, a side extension rod 43291 mounted on the outer wall of the second material box 4326, a second suspended plate 43292 mounted on the frame 1 by a fixing rod and located above the middle partition plate 415, and two sets of second limiting rails 43293 symmetrically mounted on both sides of the second suspended plate 43292 and used to drive the side extension rod 43291 to move.

[0087] The waste recycling unit 433 includes a magnet block 4331 slidably disposed inside the semi-annular recessed cavity 4315, a magnet piece embedded in one end of the semi-annular recessed cavity 4315 near the filling notch 4325 and used to position the magnet block 4331, a waste box 4332 disposed on the side of the intermediate partition 415 and located below the semi-circular scoop box 4314 via a fixing rod, a semi-circular bottom plate 4333 disposed on the top of the waste box 4332, a pointer 4334 rotatably disposed on the semi-circular bottom plate 4333, an electromagnet 4335 disposed at the end of the pointer 4334 and used to drive the magnet block 4331 to move, and a third stepper motor disposed on the semi-circular bottom plate 4333 and used to drive the pointer 4334 to rotate.

[0088] It should be noted that a downward slope is provided inside the injection channel 4323 from the injection pipe 4322 to the injection port 4324 to ensure that the particles falling from the injection pipe 4322 can flow from inside the injection channel 4323 to the injection port 4324.

[0089] It is worth mentioning that the function of the magnet 4331 is as follows: On the one hand, when the magnet 4331 is fixed in position under the action of the magnet, after the semi-circular digging box 4314 and the semi-annular sinking cavity 4315 have completely dug through the cavity groove, the semi-circular digging box 4314 and the semi-annular sinking cavity 4315 continue to rotate out the semi-circular filter rod, so that the magnet 4331 can push out the waste dug out by the semi-annular sinking cavity 4315; on the other hand, when the semi-circular digging box 4314 has completely rotated out the semi-circular filter rod and returned to the position of the waste recycling unit 433, the pointer 4334 can move the magnet 4331 along the inside of the semi-annular sinking cavity 4315 through the electromagnet 4335, so that the magnet 4331 moves to the other end of the semi-annular sinking cavity 4315 and stops, so that the magnet 4331 pushes out the waste inside the semi-annular sinking cavity 4315, and the waste falls into the waste box 4332;

[0090] It should also be noted that the function of the injection notch 4325 is that after the semi-circular digging box 4314 and the semi-annular sinking cavity 4315 have completely cut through the cavity, the semi-circular digging box 4314 and the semi-annular sinking cavity 4315 continue to rotate out the semi-circular filter rod. The outer wall of the injection channel 4323 can push and bring out the filter rod part dug out by the semi-circular digging box 4314. At the same time, the particles discharged from the injection port 4324 of the injection channel 4323 fall to the position of the injection notch 4325, so that the particles can fall into the cavity dug out by the semi-annular sinking cavity 4315.

[0091] In this embodiment, the filling component 43 and the transmission component 41 work together to automatically fill the semi-circular filter rod with granules at a designated position, preventing the semi-circular digging box 4314 from breaking the spiral thread wrapped around the outer wall of the semi-circular filter rod. Granules can be injected into the cavity during the digging process, resulting in a high degree of automation and good structural linkage. On the other hand, the waste generated when the semi-annular sinking cavity 4315 digs the cavity inside the semi-circular filter rod can be automatically discharged, ensuring that the semi-annular sinking cavity 4315 can be reused continuously and granules can be continuously filled into the semi-circular filter rod.

[0092] In detail, as the semi-circular filter rod moves forward within the conveying channel 412, the conveyor belt 414 drives the filling assembly 43 and the semi-circular filter rod to move forward synchronously via the intermediate partition 415. After the filling assembly 43 passes the position of the second limiting track 43293, the second limiting track 43293 moves towards the semi-circular filter rod via the side extension rod 43291, carrying the L-shaped support plate 4321 and the semi-circular digging box 4314. The semi-circular digging box 4314 stops moving after reaching the position of the semi-circular filter rod. Then, the first stepper motor and the second stepper motor respectively drive the third gear 4328, the first gear 4317, the fourth gear 4329, and the second gear 4327. The drive sleeve 4313 and the injection tube 4322 rotate synchronously, causing the injection channel 4323 to rotate synchronously with the semi-circular digging box 4314. After the semi-circular digging box 4314 begins to rotate into the semi-circular filter rod, the separating blade 4316 cuts the filter rod portion dug out by the semi-circular digging box 4314 and the semi-annular sinking cavity 4315. When the semi-circular digging box 4314 is completely rotated into the semi-circular filter rod, it continues to rotate out of the semi-circular filter rod. The injection channel 4323 can push and bring out the filter rod portion dug out by the semi-circular digging box 4314. At the same time, the magnetic block 4331 pushes and brings out the waste material dug out by the semi-annular sinking cavity 4315. Meanwhile, the second material box 4326 contains... The particles fall sequentially from the injection pipe 4322, injection channel 4323, injection port 4324, and injection notch 4325 into the cavity groove dug out by the semi-annular sinking chamber 4315. After the semi-circular digging box 4314 rotates out and resets the semi-circular filter rod, the semi-circular digging box 4314 stops rotating. The second stepper motor continues to drive the injection pipe 4322 to rotate along with the injection channel 4323 through the fourth gear 4329 and the second gear 4327. This causes the injection channel 4323 to push the filter rod portion dug out by the semi-circular digging box 4314 back into the semi-circular filter rod for reset. Then, the injection channel 4323 rotates in the opposite direction to reset, and the filling assembly 43... After disengaging from the second limiting track 43293, the semi-circular digging box 4314 is driven away from the semi-circular filter rod by the fifth elastic element to reset. Finally, the third stepper motor drives the pointer 4334 to rotate. The electromagnet 4335 at the end of the pointer 4334 is energized and becomes magnetic, causing the electromagnet 4335 to be attracted by the magnet and move along the interior of the semi-annular sinking cavity 4315 with the magnet 4331. The magnet 4331 moves to the other end of the semi-annular sinking cavity 4315 and stops, thereby causing the magnet 4331 to push out the waste material dug out from the interior of the semi-annular sinking cavity 4315. The waste material falls into the waste box 4332 for unified collection.

[0093] Furthermore, such as Figure 1 and Figure 6As shown, the rewinding mechanism 5 includes two sets of parallel channels 51 disposed on the connecting frame 411 and respectively connected to the output end of the material conveying channel 412; a merging channel 52 disposed on the connecting frame 411 and used to connect the junction of the two parallel channels 51; a second rotary disk 53 disposed on the connecting frame 411 and used to drive the wrapping paper to wrap the circular filter rod at the output end of the merging channel 52; a reel 54 disposed on the connecting frame 411 and wound with air-barrier paper; and two sets of coating rollers 55 disposed on the connecting frame 411 and used to pull the air-barrier paper to the junction of the two parallel channels 51.

[0094] In this embodiment, the rewinding mechanism 5 can rewind two sets of semi-circular filter rods together and bond a layer of air-proof paper between the two sets of semi-circular filter rods to prevent air and odor from mixing between the two sets of semi-circular filter rods.

[0095] In detail, the two sets of semi-circular filter rods coming out of the feeding channel 412 advance through the parallel channel 51 into the merging channel 52. The glue-coating roller 55 pulls the air-barrier paper to the merging point of the two semi-circular filter rods and applies glue to both surfaces of the air-barrier paper. The two sets of semi-circular filter rods and the air-barrier paper are bonded together in the merging channel 52. The second rotating disc 53 then releases the forming paper to wrap the circular filter rods coming out of the merging channel 52.

[0096] Example 2

[0097] like Figure 1 As shown, components that are the same as or corresponding to those in Embodiment 1 are referred to using the same reference numerals as in Embodiment 1. For simplicity, only the differences from Embodiment 1 are described below. The difference between Embodiment 2 and Embodiment 1 is as follows:

[0098] Furthermore, such as Figure 1 As shown, the cutting and collecting mechanism 6 includes a cutting component disposed on the frame 1 and located at the output end of the merging channel 52, and a collecting component disposed on the frame 1 for collecting filter rods.

[0099] In this embodiment, the cutting and collecting components can be used to cut the rolled circular filter rods into segments for unified collection and packaging.

[0100] Example 3

[0101] like Figure 1-21 As shown, a process for a cigarette filter rod production apparatus includes the following steps:

[0102] Step 1, opening and spreading process: the two sets of cellulose acetate bundles are gradually spread by passing through the first opener 23, the second opener 25, and the third opener 28 in sequence. After spreading, the cellulose acetate bundles are sprayed with plasticizer by the plasticizer application system 29.

[0103] Step 2, pre-winding process: After the cellulose acetate bundle is sprayed with plasticizer, it enters the tobacco tongue 313 through the bundling roller 312 and is shaped into a semi-circular filter rod through the forming channel 314. The winding assembly 32 wound the fragrance thread around the outer wall of the semi-circular filter rod. The pre-winding assembly 31 initially winds the semi-circular filter rod.

[0104] Step 3, processing procedure: After initial wrapping, the semi-circular filter rod enters the conveying channel 412. As the semi-circular filter rod moves forward in the conveying channel 412, the smoke-blocking component 42 inserts an air-blocking sheet into a designated position inside the semi-circular filter rod, and the filling component 43 fills the designated position inside the semi-circular filter rod with particulate matter.

[0105] Step four, the re-winding process: the processed semi-circular filter rods enter the parallel track channel 51, the glue-coating roller 55 pulls the air-barrier paper to the junction of the two parallel track channels 51, and applies glue to both surfaces of the air-barrier paper. After the two sets of semi-circular filter rods enter the merging channel 52, the air-barrier paper is bonded to the connection of the two sets of semi-circular filter rods. The second rotating disc 53 performs a second wrapping of the circular filter rods coming out of the merging channel 52.

[0106] Step 5, the cutting and collection process, involves cutting the rolled-up circular filter rods into sections, collecting them uniformly, then packing them into trays, solidifying them, and storing them in the warehouse.

[0107] In the description of this invention, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0108] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0109] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A cigarette filter rod production apparatus, characterized in that, It includes an opening mechanism, a pre-winding mechanism, a processing mechanism, a rewinding mechanism, and a cutting and collecting mechanism, which are sequentially arranged on the frame; The processing mechanism includes a transmission component mounted on the frame and moving at the same speed as the filter rod, a smoke-blocking component mounted on the transmission component and used to separate the filter rod, and a filling component mounted on the transmission component and used to fill the filter rod with particulate matter. The opening mechanism unfolds two sets of cellulose acetate bundles. The pre-winding mechanism wraps the two sets of cellulose acetate bundles, after applying plasticizer, into semi-circular filter rods with a semi-circular cross-section. Before wrapping, two sets of flavored threads with different flavors are spirally wound around the outer wall of the semi-circular filter rod. The conveying component carries the smoke-blocking component and the filling component and moves forward synchronously with the semi-circular filter rod. The smoke-blocking component inserts an air-blocking sheet into a designated position inside the semi-circular filter rod. The filling component fills the designated position inside the semi-circular filter rod with particulate matter. The re-winding mechanism merges the two sets of semi-circular filter rods and wraps them into a circular filter rod. Before merging and wrapping, an air-blocking paper is bonded between the two sets of semi-circular filter rods. The cutting and collecting mechanism cuts and collects the circular filter rod. The transmission assembly includes a connecting frame mounted on the frame, two sets of material conveying channels mounted on the connecting frame for conveying semi-circular filter rods, a processing window opened on the side of the material conveying channels, a conveyor belt mounted on the connecting frame via two sets of drive rollers, and an intermediate partition plate mounted on the conveyor belt. The smoke-proof assembly is divided into several groups and alternately arranged on both sides of the middle partition, including a slotted unit arranged on the middle partition and a pushing unit arranged on the slotted unit. The grooving unit includes a horizontal rod that passes through and slides on the intermediate partition plate, a first elastic element disposed between one end of the horizontal rod and the side of the intermediate partition plate, a U-shaped frame that passes through and slides on the other end of the horizontal rod, a baffle plate disposed on the horizontal rod and attached to the side of the intermediate partition plate, a second elastic element disposed between the side of the baffle plate and the U-shaped frame, two sets of symmetrical L-shaped support rods that pass through and slide on the side wall of the U-shaped frame and whose lower ends contact the conveyor belt, a vertical plate disposed at one end of the L-shaped support rod, a semi-circular cutter with a slope disposed on the vertical plate, and a cutter disposed on the side of the vertical plate. The components include: a third elastic element between the surface and the L-shaped support rod; a strip plate disposed at one end of the horizontal rod and located inside the U-shaped frame; two sets of L-shaped hangers symmetrically disposed at the bottom of the strip plate; a drive wedge block disposed at the end of the L-shaped hanger block and used to drive the L-shaped support rod to move to both sides to open two sets of semi-circular cutters; two sets of limiting channels symmetrically disposed on the conveyor belt and used to restrict the movement of the lower end of the L-shaped support rod; a sliding cavity opened in the inner wall of the limiting channel; a limiting wedge block slidably disposed inside the sliding cavity; a fourth elastic element disposed between the limiting wedge block and the inner wall of the sliding cavity; and an upper extension rod disposed at the top of the baffle plate.

2. The cigarette filter rod production apparatus according to claim 1, characterized in that, The pushing unit includes a pushing channel set inside the U-shaped frame by a fixing rod, a push rod set on the strip, a push bar set at the end of the push rod and adapted to the pushing channel, an upper clamping plate set at the top of the pushing channel and attached to the upper surface of the upright plate, a lower clamping plate set at the bottom of the pushing channel and attached to the lower surface of the upright plate, a first material box set on the upper clamping plate and containing an air-insulating sheet, and a limiting slide groove opened on the upper surface of the lower clamping plate and the lower surface of the upper clamping plate for limiting the vertical movement of the air-insulating sheet.

3. The cigarette filter rod production apparatus according to claim 1, characterized in that, The filling components are divided into several groups symmetrically arranged on both sides of the middle partition and located between two adjacent smoke-proof components. They include a grooving unit arranged on the side of the middle partition, a material injection unit arranged on the grooving unit, and a waste recycling unit arranged on the side of the middle partition. The trenching unit includes a Z-shaped support plate disposed on the side of the intermediate partition, a limiting strip hole opened on the Z-shaped support plate, a slider slidably disposed inside the limiting strip hole, a fifth elastic element disposed between the side of the slider and the end of the limiting strip hole, a sleeve that passes through and is raised and lowered on the slider, a semi-circular trenching box disposed at the lower end of the sleeve, a semi-annular recessed cavity opened at the bottom of the semi-circular trenching box, a separating blade disposed at one end of the semi-annular recessed cavity, and a first gear disposed at the upper end of the sleeve. The injection unit includes an L-shaped support plate slidably mounted on the Z-shaped support plate, an injection pipe mounted at the bottom of the L-shaped support plate and lined inside the sleeve, an injection channel located at the lower end of the injection pipe and inside the semi-circular hopper, an injection port located at the bottom of the injection channel and above the semi-annular sinking cavity, an injection notch located at the other end of the semi-annular sinking cavity and below the injection port, a second material box containing granules mounted on the L-shaped support plate, a second gear mounted on the injection pipe, a first stepper motor mounted on the L-shaped support plate, a third gear mounted on the output shaft of the first stepper motor and used to drive the first gear, a second stepper motor mounted on the L-shaped support plate, a fourth gear mounted on the output shaft of the second stepper motor and used to drive the second gear, and a side extension rod mounted on the outer wall of the second material box.

4. The cigarette filter rod production apparatus according to claim 1, characterized in that, The opening mechanism includes two sets of drums wound with cellulose acetate bundles on the frame, and two sets of guide rings, a first opener, a guide roller, a second opener, a pre-opening roller, an extension roller, a third opener, and a plasticizer application system, which are respectively arranged sequentially on the frame.

5. The cigarette filter rod production apparatus according to claim 1, characterized in that, The pre-winding mechanism includes a pre-winding assembly mounted on the frame for winding a semi-circular filter rod, and a winding assembly mounted on the pre-winding assembly for spirally winding incense thread around the outer wall of the semi-circular filter rod.

6. The cigarette filter rod production apparatus according to claim 1, characterized in that, The rewinding mechanism includes two sets of parallel channels mounted on the connecting frame and respectively connected to the output end of the material conveying channel; a merging channel mounted on the connecting frame for connecting the junction of the two parallel channels; a second rotary disk mounted on the connecting frame for driving the wrapping paper to wrap the circular filter rod at the output end of the merging channel; a reel mounted on the connecting frame and wound with air-barrier paper; and two sets of coating rollers mounted on the connecting frame for pulling the air-barrier paper to the junction of the two parallel channels.

7. The cigarette filter rod production apparatus according to claim 6, characterized in that, The cutting and collecting mechanism includes a cutting component mounted on the frame and located at the output end of the merging channel, and a collecting component mounted on the frame for collecting filter rods.

8. The process of a cigarette filter rod production apparatus according to any one of claims 1-7, characterized in that, Includes the following steps: Step 1, opening and spreading process: the two sets of cellulose acetate bundles pass through the first opener, the second opener and the third opener in sequence to gradually spread out. After spreading out, the cellulose acetate bundles are sprayed with plasticizer by the plasticizer application system. Step 2, pre-winding process: After the cellulose acetate bundle is sprayed with plasticizer, it enters the tobacco tongue through the bundling roller and is shaped into a semi-circular filter rod through the forming channel. The winding assembly spirals the incense thread around the outer wall of the semi-circular filter rod. The pre-winding assembly initially winds the semi-circular filter rod. Step 3, processing procedure: After initial wrapping, the semi-circular filter rod enters the conveying channel. As the semi-circular filter rod moves forward in the conveying channel, the smoke-blocking component inserts an air-blocking sheet into a designated position inside the semi-circular filter rod, and the filling component fills the designated position inside the semi-circular filter rod with particulate matter. Step four, the re-winding process: the processed semi-circular filter rods enter the parallel track channel, the glue-coating roller pulls the air-barrier paper to the junction of the two parallel track channels, and glue is applied to both surfaces of the air-barrier paper. After the two sets of semi-circular filter rods enter the merging channel, the air-barrier paper is bonded to the connection of the two sets of semi-circular filter rods. The second rotating disc performs a second wrapping of the circular filter rods coming out of the merging channel. Step 5, the cutting and collection process, involves cutting the rolled-up circular filter rods into sections, collecting them uniformly, then packing them into trays, solidifying them, and storing them in the warehouse.

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