Filter stick insert adding device

Abstract

The invention provides a filter stick plug-in adding device. The filter stick plug-in adding device comprises a rack, a strip unwinding unit, a strip winding unit, a winding driving mechanism, a cutting unit and an adsorption transfer unit. The strip unwinding unit is sleeved with a new strip coil, and a strip head led out of the new strip coil is connected to the strip winding unit. The cutting unit is used for punching the strip between the strip unwinding unit and the strip winding unit to obtain a circular insert; the adsorption transfer unit is used for adsorbing and transferring the filter stick base sticks in the composite filter sticks, so that the filter stick base sticks are transferred between a base stick adsorption and release position and an insertion piece butt joint position; according to the invention, the cutting process and the adding process of the inserts are integrated together, so that the consistency of the adding amount of the inserts and the cutting amount of the inserts is ensured, and the defect of excessive or insufficient inserts caused by the separation of the traditional process is avoided.

Description

Technical Field

[0001] This invention belongs to the field of cigarette manufacturing technology, specifically relating to a filter rod insert adding device. Background Technology

[0002] To enhance the cigarette consumer experience, manufacturers add one or more functional materials to the filter rods during production to achieve functions such as aroma release and / or harm reduction during smoking. These functional materials are typically added to the filter rod in the form of flavor capsules (i.e., capsules containing functional materials) or embedded components (i.e., functional materials built into the components). However, these methods generally suffer from drawbacks such as large amounts of functional materials added and limited contact area, which not only increases the manufacturing cost of cigarettes but also fails to adequately guarantee the sensory experience for smokers. Therefore, inserts loaded with functional materials have emerged.

[0003] Currently, the methods for manufacturing and adding inserts include: cutting sheet-like substrates coated with functional materials to obtain circular inserts; then stacking and transferring a large number of cut inserts to an insert feeding device for insert addition; since substrate cutting and insert addition are carried out separately, and a large number of inserts are involved in the stacking and sorting, it is easy to have problems with over-cutting or under-cutting of inserts. Excessive inserts will increase additional storage costs, while insufficient inserts will affect the production efficiency of composite filter rods. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of this invention is to provide a new filter rod insert adding device, which integrates the cutting and adding of inserts and then docks with the filter rod composite device, which not only ensures the consistency of the insert cutting amount and the insert adding amount, but also improves the automation level of composite filter rod production.

[0005] To achieve the above and other related objectives, the present invention provides a filter rod insert adding device, comprising a frame, a strip unwinding unit, a strip winding unit, a winding drive mechanism, a cutting unit, and an adsorption and transfer unit; the strip unwinding unit is located below the strip winding unit; a new strip roll of wrapped strip is fitted onto the strip unwinding unit, and the strip head of the new roll is connected to the strip winding unit; the cutting unit is used to punch the strip between the strip unwinding unit and the strip winding unit to obtain circular inserts; the cutting unit includes a cutting seat. The system includes a strip clamping mechanism and a strip punching mechanism. The bottom of the cutting seat has a strip hole for the strip to pass through. The strip clamping mechanism clamps the strip at the strip hole. The strip punching mechanism punches the clamped strip to obtain circular inserts. The strip punching mechanism includes a punch located on the cutting seat, a punch that mates with the punch, and a punching cylinder that drives the punch. The punch communicates with the strip hole, and the centerline of the punch is perpendicular to the centerline of the strip hole. The adsorption and transfer unit is used to adsorb and transfer the filter rod base rod in the composite filter rod, so that the filter rod... The base rod is transferred between the base rod suction and release position and the insert docking position; the present invention guides the strip head of the new strip roll from the strip unwinding unit through the strip hole of the cutting seat to the strip winding unit, so that the automatic winding action of the strip winding unit completes the release of the new strip roll and the automatic recycling of the waste strip; during this process, the released strip continuously enters the cutting seat and is punched by the strip punching mechanism to obtain circular inserts; the adsorption and transfer unit adsorbs the filter rod base rod in the composite filter rod and transfers the adsorbed filter rod base rod to the punching position for punching. The inserted plates are then joined together, and the filter rod base with the joined plates is transferred back into the composite filter rod to complete the addition of the plates. By integrating the cutting and adding processes of the plates together, the consistency between the amount of plates added and the amount obtained from cutting can be effectively ensured, avoiding the defects of excessive or insufficient plates caused by the separation of traditional processes. This invention utilizes the automatic supply and recycling of strip material to realize the automatic continuous punching of strip material, and feeds the punched plates to the filter rod composite unit to complete the automatic addition of the plates, effectively improving the automation level of composite filter rod production.

[0006] Preferably, the strip punching mechanism is arranged on the same side of the strip unwinding unit and the strip winding unit; a strip guiding mechanism is installed on the frame; the strip guiding mechanism includes two first rollers spaced apart along the height direction; the strip head drawn from the new roll passes around each of the first rollers in sequence and connects to the strip winding unit, and the two first rollers cooperate to make the strip pass vertically through the strip hole of the cutting seat; since the strip punching mechanism is arranged on the side of the strip winding and unwinding units, the distance between the strip unwinding unit and the strip winding unit can be effectively shortened, and the compactness in the height direction can be increased; the setting of the first rollers can avoid the strip from being damaged by friction with the cutting seat during the transmission process, which not only ensures the quality of the insert, but also avoids the strip from being broken by friction and affecting the continuous supply of strip.

[0007] Preferably, the frame is equipped with a gluing unit for applying glue to the strip after unwinding but before it enters the strip hole. The gluing unit includes a glue box, a rotatably mounted gluing wheel, and a glue wheel drive assembly for driving the gluing wheel to rotate. The gluing wheel is located above the glue box, and the top of the glue box has a through hole for the gluing wheel to partially extend into. When the strip clamping mechanism releases the strip, the strip will not stick to the cutting seat. Thus, the gluing wheel will continuously pick up glue from the glue box during rotation and apply the glue to the strip that has passed through the gluing wheel, so that the inserts to be cut later can be directly adhered to the filter rod base bars picked up by the adsorption and transfer unit through the glue, improving the convenience of gluing. In addition, since the strip will not stick to the cutting seat through the glue, the smoothness of the strip supply is effectively guaranteed.

[0008] Preferably, the coating unit includes a scraper assembly located between the coating roller and the strip unwinding unit; a glue-passing gap is formed between the scraper assembly and the coating roller, and the scraper assembly controls the glue layer thickness through the glue-passing gap; the strip guiding mechanism includes a second roller located above the scraper assembly; the second roller lifts the strip between the strip unwinding unit and the adjacent first roller upward to form a receiving area for accommodating the coating roller and the scraper assembly; the scraper assembly can scrape off excessive glue on the coating roller, thus ensuring uniform glue application to the strip by the coating roller; in addition, the setting of the second roller allows the coating unit to be moved upward as a whole, improving the compactness of the structural layout.

[0009] Preferably, the adsorption and transfer unit includes an adsorption mechanism and a multi-axis drive mechanism; the multi-axis drive mechanism is mounted on the frame and drives the adsorption mechanism to move between the base rod adsorption / discharge position and the insert docking position; the adsorption mechanism includes a pick-up seat and a hollow connecting tube; the pick-up seat is mounted at the bottom of the hollow connecting tube, and the side of the pick-up seat near the cutting unit is provided with an adsorption hole communicating with the hollow connecting tube; the hollow connecting tube is connected to the movable part of the multi-axis drive mechanism through an adapter, and the top end of the hollow connecting tube is connected to the suction device.

[0010] Preferably, the multi-axis drive mechanism includes a lifting assembly and a first horizontal drive assembly; the first horizontal drive assembly is mounted on the frame and drives the lifting assembly to move horizontally along the punching direction of the punch; the lifting assembly includes a lifting box and a lifting drive component; the lifting box is provided with a suction connector that connects to the suction device; the hollow connecting pipe is slidably disposed on the lifting box in the vertical direction; the upper end of the hollow connecting pipe extends into the lifting box and is connected to the movable end of the lifting drive component through an adapter; the suction connector is connected to the upper end of the hollow connecting pipe via a flexible hose; since the position of the suction connector remains unchanged, the suction pipe of the suction device is effectively prevented from moving up and down with the part-taking seat, thus avoiding interference with the material suction action of the part-taking seat.

[0011] Preferably, the strip guiding mechanism includes a third roller located below the first horizontal drive assembly; the third roller pushes the strip between the strip winding unit and the adjacent first roller downward to form a clearance area to avoid the movement of the lifting assembly, thereby preventing the lifting assembly from squeezing the strip during horizontal movement, which would cause some strip to be recycled without being cut, thus improving the utilization rate of the strip.

[0012] Preferably, the top of the lifting box is provided with a first reset sensor to confirm whether the sensing adapter has been reset to the correct position, and the first reset sensor is used to confirm whether the picking seat has reached the picking height.

[0013] Preferably, the frame is slidably mounted on the bottom platform, and the bottom platform is provided with a second horizontal drive assembly connected to the frame; the sliding direction of the frame is consistent with the moving direction of the lifting assembly; in this way, the problem of the first horizontal drive assembly bearing a large bending moment when it extends too far can be avoided, and the service life of the first horizontal drive assembly can be guaranteed.

[0014] Preferably, both the strip unwinding unit and the strip winding unit include a fixed shaft, a sleeve, a limiting baffle, and an adjusting locking assembly; the sleeve is rotatably sleeved on the fixed shaft for installing the strip roll; the limiting baffle is installed on the sleeve and located at one end of the strip roll; the adjusting locking assembly is threaded on the sleeve and cooperates with the limiting baffle to restrict the axial movement of the strip roll, thereby meeting the installation requirements of strip rolls of different thicknesses.

[0015] Preferably, the adjusting and locking assembly includes an adjusting sleeve and a locking nut; the adjusting sleeve is slidably sleeved on the coil sleeve, and the outer periphery of the adjusting sleeve is formed with a tapered guide surface; the small end of the tapered guide surface is close to the limiting baffle, and the tapered guide surface extends into the inner hole of the coil; the locking nut is threaded on the coil sleeve to compress the adjusting sleeve to move axially toward the limiting baffle; during this process, the tapered guide surface of the adjusting sleeve will push the coil to move axially and upward at the same time until the coil is pressed against the limiting baffle and the coil is adjusted to a position coaxial with the adjusting sleeve.

[0016] As described above, the filter rod insert adding device of the present invention has the following beneficial effects:

[0017] This application guides the strip head from the new strip unwinding unit through the strip hole of the cutting seat to the strip winding unit, thus achieving automatic strip supply and recovery. During this process, the released strip continuously enters the cutting seat and is continuously punched by the strip punching mechanism to obtain circular inserts. Simultaneously, the adsorption and transfer unit adsorbs the filter rod base from the composite filter rod and transfers the adsorbed filter rod base to the punching point to mate with the punched inserts. Then, the filter rod base with the inserted inserts is transferred back into the composite filter rod, completing the addition of the inserts. In this way, the strip can be automatically supplied and recovered. The cutting and loading of inserts are integrated, which not only has a high level of automation, but also ensures the consistency of the amount of inserts acquired and added, avoiding additional insert storage and handling costs. In addition, the setting of the glue coating unit can further improve the automation level of the device. The setting of the strip guiding mechanism helps to ensure the structural compactness of the entire device and reduce the space occupied by the device. Furthermore, the filter rod insert adding device of the present invention can directly interface with the composite filter rod conveying unit of the existing filter rod composite device, improving the automation level of filter rod production with inserts. Attached Figure Description

[0018] Figure 1 A perspective view of the device for adding filter rod inserts.

[0019] Figure 2 Right view of the device for adding filter rod inserts.

[0020] Figure 3 This is a 3D view of the rack.

[0021] Figure 4 Right view of the strip unwinding unit, strip winding unit, and strip guiding mechanism mounted on the mounting plate.

[0022] Figure 5 This is a vertical axial cross-sectional view of the strip unwinding unit and the strip winding unit.

[0023] Figure 6 This is a top view of the cut unit.

[0024] Figure 7 for Figure 6 AA-direction cross-section.

[0025] Figure 8 This is a partial sectional view of the cut unit.

[0026] Figure 9 This is a right view of the glue application unit.

[0027] Figure 10 for Figure 9 BB-direction cross-section.

[0028] Figure 11This is a right view of the adsorption-transfer unit.

[0029] Figure 12 To improve the vertical cross-sectional view of the component.

[0030] Explanation of reference numerals in the attached figures

[0031] Filter rod base 01, frame 1, horizontal base plate 11, mounting plate 12, reinforcing plate 13, strip unwinding unit 2a, strip winding unit 2b, mounting shaft 21, sleeve 22, drum 221, sleeve body 222, first bearing 23, limit baffle 24, adjusting locking assembly 25, adjusting sleeve 251, locking nut 252, winding drive unit 3, cutting unit 4, cutting seat 41, strip hole 411, punch 412, front cover plate 413, pressing cylinder 421, pressing head 422, punch 431, punching cylinder 432, guide sleeve 44, adsorption and transfer unit 5, adsorption mechanism 51, part taking seat 511, hollow connecting pipe 512. Adapter 513, lifting assembly 52, lifting box 521, suction connector 5211, first reset sensor 5212, vertical lead screw 5213, lead screw nut 5214, lead screw motor 5215, first horizontal drive assembly 53, strip guiding mechanism 6, first roller 61, second roller 62, third roller 63, glue application unit 7, glue box 71, glue application wheel 72, glue wheel fixing shaft 721, second bearing 722, glue wheel drive assembly 73, glue wheel drive motor 731, driving wheel 732, driven wheel 733, synchronous belt 734, glue scraping assembly 74, glue scraping seat 741, glue scraping knife 742, bottom platform 8, second horizontal drive assembly 9. Detailed Implementation

[0032] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0033] Please see Figures 1 to 12 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0034] For ease of description, this application defines the length direction of the mounting plate 12 as the front-to-back direction, the width direction of the mounting plate 12 as the left-to-right direction, and the height direction of the mounting plate 12 as the up-to-down direction. Based on this, in Figure 2 In the diagram, the top of the paper is the up direction, the bottom of the paper is the down direction, the left side of the paper is the front direction, the right side of the paper is the back direction, the inside of the paper is the left direction, and the outside of the paper is the right direction.

[0035] like Figure 1 , Figure 2 , Figure 3 , Figures 6 to 8 As shown, the filter rod insertion device involved in this application includes a frame 1, a strip unwinding unit 2a, a strip winding unit 2b, a winding drive mechanism 3, a cutting unit 4, and an adsorption transfer unit 5; the frame 1 includes a horizontal base plate 11 and a mounting plate 12 vertically fixed on the horizontal base plate 11; the strip unwinding unit 2a, the strip winding unit 2b, the winding drive mechanism 3, the cutting unit 4, and the adsorption transfer unit 5 are all located on the same side (i.e., the right side) of the mounting plate 12, and the strip unwinding unit 2a... Unit 2a is located below the strip winding unit 2b; a new roll of strip material is mounted on the strip unwinding unit 2a, and the strip head of the new roll is connected to the strip winding unit 2b; thus, when the winding drive mechanism 3 drives the strip winding unit 2b to perform the winding action, the new roll mounted on the strip unwinding unit 2a will release the strip material, realizing automatic strip supply; the cutting unit 4 is used to punch the strip material between the strip unwinding unit and the strip winding unit to obtain circular inserts; the cutting unit... Unit 4 includes a cutting seat 41, a strip clamping mechanism, and a strip punching mechanism; the bottom of the cutting seat 41 has a strip hole 411 for the strip to pass through; the strip clamping mechanism is used to clamp the strip at the strip hole 411 onto the cutting seat 41, and the strip punching mechanism punches the strip clamped onto the cutting seat 41 to obtain a circular insert; wherein, the strip punching mechanism includes a punch hole 412 located on the cutting seat 41, a punch 431 that cooperates with the punch hole 412, and a punching cylinder 432 that drives the punch 431. The punch 412 is connected to the strip hole 411, and the center line of the punch 412 is perpendicular to the center line of the strip hole 411; the adsorption and transfer unit 5 is used to adsorb and transfer the filter rod base rod 01 in the composite filter rod, so that the filter rod base rod 01 is transferred between the base rod adsorption and release position and the insert docking position; in this embodiment, the frame 1 includes a side plate 13 that is vertically connected to the horizontal base plate 11 and the mounting plate 12, so as to facilitate the use of the side plate 13 to realize the reinforced connection between the horizontal base plate 11 and the mounting plate 12.

[0036] The tape involved in this application is a flexible tape loaded with functional materials such as fragrances and harm-reducing agents. The flexible tape is made of materials such as paper and fabric that can be easily rolled and bent.

[0037] The filter rod insert addition device involved in this application can be connected to the composite filter rod conveying unit of the filter rod composite device. The composite filter rod conveying unit has multiple composite filter rods to be implanted with inserts arranged on it, and conveys the arranged composite filter rods. The conveying direction of the composite filter rod conveying unit must be perpendicular to the axial direction of the composite filter rod, and the composite filter rod is a combination structure of at least one filter rod base rod arranged according to a preset process. When the composite filter rod is conveyed to the filter rod insert addition device, the adsorption and transfer unit 5 will pick up the corresponding filter rod base rod 01 according to the insertion position of the insert, and transfer the picked-up filter rod base rod 01 to the punching hole 412 (i.e., the insert docking position) so that the punched insert can be directly glued to the end of the filter rod base rod 01 (the end of the filter rod base rod 01 or the insert is pre-applied with glue). Finally, the filter rod base rod with the insert glued is transferred back to the corresponding composite filter rod, thus completing the insertion of the composite filter rod.

[0038] like Figure 7 and Figure 8 As shown, in order to ensure the punching stability of the insert, two strip clamping mechanisms are provided; the two strip clamping mechanisms are arranged vertically and symmetrically about the center line of the punch 431; the strip clamping mechanism includes a clamping cylinder 421, which directly clamps the strip or indirectly clamps the strip through a pressure block 422.

[0039] Furthermore, such as Figures 6 to 8 As shown, the strip hole 411 communicates with the front wall of the cutting seat 41 to form an opening, and a front cover plate 413 corresponding to the opening position is detachably installed on the front wall of the cutting seat 41; a punch 412 is arranged on the front cover plate 413; when it is necessary to cut inserts, the clamping cylinder 421 extends and clamps the strip onto the front cover plate 413. At this time, the punching cylinder 432 starts to complete the insert punching. In this way, without replacing the entire cutting unit 4, only the corresponding punch 421 and front cover plate 413 need to be replaced to achieve the cutting and feeding of inserts of other diameters, improving the versatility of the device.

[0040] It is understood that the strip unwinding unit 2a and the strip winding unit 2b can adopt existing structures; in this embodiment, the specific structures of the strip unwinding unit 2a and the strip winding unit 2b are as follows: Figure 5As shown, each includes a fixed shaft 21, a sleeve 22, a limiting baffle 24, and an adjusting locking assembly 25. The sleeve 22 is rotatably mounted on the fixed shaft 21 and is used to mount the strip roll. The limiting baffle 24 is mounted on the sleeve 22 and located at one end of the strip roll. The adjusting locking assembly 25 is threaded onto the sleeve 22 and cooperates with the limiting baffle 24 to restrict the axial movement of the strip roll. By adjusting the locking assembly 25, strip rolls of different thicknesses can be pressed against the limiting baffle 24, causing the strip roll to rotate with the sleeve 22, ensuring smooth winding or unwinding of the strip roll. The winding drive mechanism 3 includes a winding motor, which is connected to the sleeve 22 of the strip winding unit 2b via a synchronous belt assembly, synchronous chain assembly, or gear assembly to drive the drum 22 to rotate, thereby realizing the automatic recycling and release of the strip.

[0041] To meet the installation requirements of tape rolls with different inner diameters, such as Figure 5 As shown, the drum 22 includes a rotating drum 221 and a drum body 222; the rotating drum 221 is rotatably mounted on the fixed shaft 21 via a first bearing 23; the drum body 222 is detachably fixed to the rotating drum 221 by bolts; thus, only by replacing the drum body 222 with a different outer diameter can the installation requirements of different inner diameter tape rolls be met.

[0042] Furthermore, such as Figure 5 As shown, the adjusting and locking assembly 25 includes an adjusting sleeve 251 and a locking nut 252 that are separately disposed; wherein, the adjusting sleeve 251 is slidably sleeved on the winding sleeve 22; the locking nut 252 is threadedly installed on the winding sleeve 22 and is used to press the adjusting sleeve 251 to move it axially closer to the limiting baffle 24, thereby using the axial movement of the adjusting sleeve 251 to press the strip roll onto the limiting baffle 24; since the adjusting sleeve 251 does not rotate with the locking nut 252, friction between the adjusting sleeve 251 and the strip roll is effectively avoided.

[0043] If each specification of strip coil is equipped with a separate coil body 222, it will inevitably increase the cost of accessories for the coil body 222. To reduce accessory costs, coil bodies 222 can be equipped according to the size range of the inner diameter of the strip coil. For example, a strip coil with an inner diameter of 6cm to 10cm corresponds to a coil body 222 with an outer diameter of 5cm. In this case, when the strip coil is sleeved on the body 222, it will be eccentric under the action of gravity, affecting the uniformity of strip release. To ensure the coaxiality of the strip coil installation, an adjusting sleeve can be used. The outer periphery of the 251 is formed with a tapered guide surface; the small end of the tapered guide surface is close to the limiting baffle 24, and the tapered guide surface extends into the inner hole of the roll to support the roll. Thus, when the adjusting sleeve 251 approaches the limiting baffle 24 under the squeezing action of the locking nut 252, the tapered guide surface will push the roll to move upward and axially until the roll and the sleeve 22 are coaxially set and pressed on the limiting baffle 24, thereby ensuring the installation effect of the roll while reducing the number of accessories of the roll body 222.

[0044] To ensure compactness in the height direction, such as Figure 2 and Figure 4 As shown, the cutting unit 4 is arranged on the same side (i.e., the front side) of the strip unwinding unit 2a and the strip winding unit 2b; and a strip guiding mechanism 6 is installed on the mounting plate 12; the strip guiding mechanism 6 includes two first rollers 61 spaced apart along the height direction; the strip head of the new roll passes through the lower first roller 61, the strip hole 411 of the cutting seat 41 and the upper first roller 61 in sequence and then connects to the strip winding unit 2b; in this way, the two first rollers 61 can cooperate to make the strip pass vertically through the strip hole 411 of the cutting seat 41, avoiding friction damage between the strip and the cutting seat 41.

[0045] like Figure 1 and Figure 2 As shown, the mounting plate 12 is equipped with a gluing unit 7; the gluing unit 7 is used to apply glue to the unwound strip; wherein, the gluing unit 7 includes a glue box 71, a rotatably mounted gluing wheel 72, and a glue wheel drive assembly 73 for driving the gluing wheel 72 to rotate; the gluing wheel 72 is located above the glue box 71 and is tangent to the strip between the strip unwinding unit 2a and the first roller 61 below; the top of the glue box 71 is provided with a through hole for the gluing wheel 72 to partially extend into; thus, when the gluing wheel 72 rotates, the gluing wheel 72 will move from the glue box... 71 dips in glue and applies it to the strip; the glue wheel drive assembly 73 includes a glue wheel motor 731, which drives the glue application wheel 72 to rotate to complete the automatic glue application action of the strip; since the strip will be tightly attached to the front cover plate 413 when it is pressed by the strip pressing mechanism, in order to prevent the glued strip from sticking to the front cover plate 413 and affecting the normal supply and recycling of the strip, the side of the front cover plate 413 facing the strip needs to be coated with a non-adhesive coating such as Teflon or nano-coating that does not stick to the glue.

[0046] like Figure 9 and Figure 10 As shown, the mounting plate 12 is provided with a rubber wheel fixing shaft 721, and the glue-applying wheel 72 is rotatably mounted on the rubber wheel fixing shaft 721 through a second bearing 722; the rubber wheel drive assembly 73 includes a driving wheel 732 and a driven wheel 733. The driving wheel 732 is fixed on the motor shaft of the rubber wheel motor 731, and the driven wheel 733 is fixed on the glue-applying wheel 72; the driving wheel 732 is connected to the driven wheel 733 through gear teeth, a synchronous belt 734 or a synchronous chain to drive the glue-applying wheel 72 to rotate; in order to improve the compactness of the arrangement, the rubber wheel motor 731 is preferably arranged in the area above the glue-applying wheel 72 and in the empty area behind the cutting unit 4.

[0047] Furthermore, such as Figure 9 and Figure 10As shown, the coating unit 7 includes a scraper assembly 74, which is located between the coating roller 72 and the strip unwinding unit 2a. The scraper assembly 74 includes a scraper blade 742, which is fixed to the mounting plate 12 by a scraper seat 741. A glue-passing gap is formed between the scraper blade 742 and the coating roller 72, and the scraper blade 742 controls the glue layer thickness through the glue-passing gap to ensure uniform coating. To avoid damage to the strip from friction with the scraper assembly 74 during release and to improve the compactness of the arrangement, the strip guiding mechanism 6 includes a second roller 62 located above the scraper assembly 74. The second roller 62 lifts the strip between the strip unwinding unit 2a and the adjacent first roller 61 (i.e., the upper first roller 61) upward to form a receiving area for accommodating the coating roller 72 and the scraper assembly 74.

[0048] like Figure 2 and Figure 12 As shown, the adsorption and transfer unit 5 includes an adsorption mechanism 51 and a multi-axis drive mechanism. The multi-axis drive mechanism is mounted on the mounting plate 12 and drives the adsorption mechanism 51 to transfer between the base rod adsorption and release position and the insert docking position. The adsorption mechanism includes a pick-up seat 511 and a hollow connecting tube 512. The pick-up seat 511 is mounted on the bottom of the hollow connecting tube 512, and the side of the pick-up seat 511 near the cutting unit 4 is provided with an adsorption hole communicating with the hollow connecting tube 512. The adsorption hole is used to adsorb the filter rod base rod 01. The hollow connecting tube 512 is connected to the movable part of the multi-axis drive mechanism through a connector 513, and the top end of the hollow connecting tube 512 is connected to the suction device. The multi-axis drive mechanism is an existing multi-axis manipulator. Since multi-axis manipulators have various structural forms, such as rectangular coordinate manipulators (which can realize linear movement in two or three coordinate axes), cylindrical coordinate manipulators (including manipulators that can lift up and down and swing horizontally), and multi-joint manipulators, users can choose according to their needs.

[0049] In this way, by first adjusting the position of the pick-up seat 511 so that the filter rod base 01 picked up by the pick-up seat 511 is close to the punch 412 and aligned with the punch 431, and then punching the insert, it can be ensured that the punched insert can be successfully bonded to the end of the filter rod base 01, thus improving the accuracy of insert bonding.

[0050] Furthermore, in this embodiment, the multi-axis drive mechanism is a Cartesian coordinate robot; such as Figure 11 and Figure 12As shown, the multi-axis drive mechanism includes a lifting assembly 52 and a first horizontal drive assembly 53 that drives the lifting assembly 52 to move horizontally. The first horizontal drive assembly 53 is mounted on the mounting plate 12 and drives the lifting assembly 52 to move horizontally along the punching direction of the punch 431, ensuring that the lifting assembly 52 can drive the take-up seat 511 to move between the base rod suction and release position and the insert docking position. The lifting assembly 52 includes a lifting box 521 and a lifting drive component. The lifting box 521 is provided with a suction connector 5211 that docks with the suction device. The hollow connecting pipe 512 is slidably disposed on the lifting box 521 in the vertical direction, and the upper end of the hollow connecting pipe 512 extends into the lifting box 521 and passes through it. The adapter 513 is connected to the movable end of the lifting drive component; the suction connector 5211 is connected to the upper end of the hollow connecting pipe 512 via a hose; since the suction connector 5211 does not move up and down with the picking seat 511, the stacking of the suction pipes of the suction device is effectively avoided to prevent interference with the action of the picking seat 511, ensuring the smooth transfer of the insert adsorption; the first horizontal drive component 53 and the lifting drive component can be existing linear drive devices such as cylinders, hydraulic cylinders, and motor screw mechanisms. Based on the consideration of control accuracy, the lifting drive component in this embodiment preferably uses a motor screw mechanism, which includes a vertical screw 5213, a screw nut 5214, and a screw motor 5215 that drives the vertical screw 5213 to rotate.

[0051] Preferably, such as Figure 12 As shown, the top of the lifting box 521 is provided with a first reset sensor 5212 to determine whether the sensing adapter 513 has been reset to the correct position. The first reset sensor 5212 limits the maximum stroke position of the picking seat 511. The first reset sensor 5212 can be a proximity sensor or a distance sensor. In this embodiment, a proximity sensor is preferred.

[0052] The first horizontal drive assembly 53 is preferably a cylinder, and the lifting box 521 is slidably mounted on the mounting plate 12 via a slide rail. To avoid the cylinder extending too far and bearing a large bending moment, the frame 1 needs to be slidably mounted on the bottom platform 8, and the bottom platform 8 is provided with a second horizontal drive assembly 9 connected to the frame 1. The sliding direction of the frame 1 is consistent with the horizontal movement direction of the lifting assembly 42, and the third horizontal drive assembly is equipped with a second reset sensor. The second horizontal drive assembly 9 drives the frame 1 to move horizontally, and the movement direction of the frame 1 is consistent with the movement direction of the lifting assembly 52. ​​The second horizontal drive assembly 9 is a linear drive mechanism such as a cylinder, hydraulic cylinder, or motor screw structure, and there is no limitation on this. In this embodiment, the second horizontal drive assembly 9 is preferably a motor screw structure.

[0053] like Figure 2As shown, the strip guiding mechanism 6 includes a third roller 63 located below the first horizontal drive assembly 53; the third roller 63 pushes the strip between the strip winding unit 2b and the adjacent first roller 61 downward to form a clearance area to avoid the movement of the lifting assembly 53, effectively avoiding interference between the lifting assembly 53 and the strip during the movement, thus affecting the conveying stability of the strip.

[0054] When the composite filter rod conveying unit delivers a composite filter rod to the filter rod insert addition position, the pick-up seat 511 picks up the filter rod base rod 01 from the composite filter rod and aligns the picked-up filter rod base rod 01 with the punch 431 at the punch hole 412. At the same time, the winding drive mechanism 3 is activated to automatically release and recycle the strip. The strip released by the strip unwinding unit 2a is coated with glue by the gluing unit 7 and enters the cutting seat 41. The clamping cylinder 421 extends to clamp the strip entering the cutting seat 41, and the punching cylinder 432 is activated to extend the punch 431 to complete the insert punching. The punched insert will approach the filter rod base rod 01 on the pick-up seat 511 under the action of the punch 431 to adhere to the end of the filter rod base rod 01 near the punch 431. The first horizontal drive assembly 53 drives the lifting box 521 to move forward, and the second horizontal drive assembly 9 drives the frame 1. The device moves forward, bringing the filter rod base with inserts adsorbed on the pick-up seat 511 above the composite filter rod. At this point, the lifting drive moves the pick-up seat 511 downwards, approaching the base rod suction / release position. The pick-up seat 511 unloads the adsorbed filter rod base, allowing it to insert into the composite filter rod at that position, completing the insertion of the filter rod. The composite filter rod conveying unit then transports the next composite filter rod to the filter rod insertion position, allowing for the insertion of the next composite filter rod. This process is repeated to sequentially add inserts to each composite filter rod. Because this invention integrates the glue application, cutting, and insertion processes, it effectively avoids the costs associated with storing, organizing, and transporting inserts that exist in traditional separate processes. Furthermore, the device has a compact structure, facilitating integration with existing composite filter rod devices and enabling the expansion and removal of the insert addition function. Therefore, this invention effectively overcomes the various shortcomings of the prior art and has high industrial applicability.

[0055] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A filter rod insert adding device, characterized in that, The system includes a frame (1), a strip unwinding unit (2a), a strip winding unit (2b), a winding drive mechanism (3), a cutting unit (4), and an adsorption transfer unit (5). The strip unwinding unit (2a) is located below the strip winding unit (2b). A new roll of strip material is mounted on the strip unwinding unit (2a), and the strip head of the new roll is connected to the strip winding unit (2b). The cutting unit (4) is used to punch the strip between the strip unwinding unit (2a) and the strip winding unit (2b) to obtain circular inserts. The cutting unit (4) includes a cutting seat (41), a strip pressing mechanism, and a strip punching mechanism. The bottom of the cutting seat (41) has a strip opening for the strip material to pass through. The strip clamping mechanism is used to clamp the strip at the strip hole (411); the strip punching mechanism punches the clamped strip to obtain a circular insert; the strip punching mechanism includes a punch (412) located on the cutting seat (41), a punch (431) cooperating with the punch (412), and a punching cylinder (432) that drives the punch (431) to move; the punch (412) is connected to the strip hole (411), and the center line of the punch (412) is perpendicular to the center line of the strip hole (411); the adsorption and transfer unit (5) is used to adsorb and transfer the filter rod base rod (01) in the composite filter rod, so that the filter rod base rod (01) is transferred between the base rod adsorption and release position and the insert docking position.

2. The filter rod insert adding device according to claim 1, characterized in that, The strip punching mechanism is arranged on the same side of the strip unwinding unit (2a) and the strip winding unit (2b); a strip guiding mechanism (6) is installed on the frame (1); the strip guiding mechanism (6) includes two first rollers (61) spaced apart along the height direction; the strip head drawn out from the new strip roll passes around each of the first rollers (61) in sequence and is connected to the strip winding unit (2b), and the two first rollers (61) cooperate to make the strip pass vertically through the strip hole (411) of the cutting seat (41).

3. The filter rod insert adding device according to claim 2, characterized in that, The frame (1) is provided with a gluing unit (7), which is used to apply glue to the strip after unwinding and before it enters the strip hole (411). The gluing unit (7) includes a glue box (71), a rotating gluing wheel (72), and a glue wheel drive assembly (73) for driving the gluing wheel (72) to rotate. The gluing wheel (72) is located above the glue box (71), and the top of the glue box (71) is provided with a through hole for the gluing wheel (72) to partially extend into. When the strip pressing mechanism releases the strip, the strip will not stick to the cutting seat (41).

4. The filter rod insert adding device according to claim 3, characterized in that, The coating unit (7) includes a scraper assembly (74) located between the coating roller (72) and the strip unwinding unit (2a); a glue passage gap is formed between the scraper assembly (74) and the coating roller (72), and the scraper assembly (74) controls the glue layer thickness through the glue passage gap; the strip guiding mechanism (6) includes a second roller (62) located above the scraper assembly (74); the second roller (62) lifts the strip between the strip unwinding unit (2a) and the adjacent first roller (61) upward to form a receiving area for accommodating the coating roller (72) and the scraper assembly (74).

5. A filter rod insert adding device according to claim 3, characterized in that, The adsorption and transfer unit (5) includes an adsorption mechanism (51) and a multi-axis drive mechanism; the multi-axis drive mechanism is installed on the frame (1) and drives the adsorption mechanism (51) to transfer between the base rod adsorption and release position and the insert docking position; the adsorption mechanism (51) includes a pick-up seat (511) and a hollow connecting tube (512); the pick-up seat (511) is installed at the bottom of the hollow connecting tube (512), and the pick-up seat (511) is provided with an adsorption hole communicating with the hollow connecting tube (512) on the side near the cutting unit (4); the hollow connecting tube (512) is connected to the movable part of the multi-axis drive mechanism through an adapter (513), and the top end of the hollow connecting tube (512) is connected to the suction device.

6. A filter rod insert adding device according to claim 5, characterized in that, The multi-axis drive mechanism includes a lifting assembly (52) and a first horizontal drive assembly (53); the first horizontal drive assembly (53) is mounted on the frame (1) and drives the lifting assembly (52) to move horizontally along the punching direction of the punch (431); the lifting assembly (52) includes a lifting box (521) and a lifting drive component; the lifting box (521) is provided with a suction connector (5211) that is connected to the suction device; the hollow connecting pipe (512) is slidably disposed on the lifting box (521) in the vertical direction; the upper end of the hollow connecting pipe (512) extends into the lifting box (521) and is connected to the movable end of the lifting drive component through an adapter (513); the suction connector (5211) is connected to the upper end of the hollow connecting pipe (512) through a hose.

7. A filter rod insert adding device according to claim 6, characterized in that, The strip guiding mechanism (6) includes a third roller (63) located below the first horizontal drive assembly (53); the third roller (63) pushes the strip between the strip winding unit (2b) and the adjacent first roller (61) downward to form a clearance area to avoid the movement of the lifting assembly (52).

8. A filter rod insert adding device according to claim 6 or 7, characterized in that, The top of the lifting box (521) is provided with a first reset sensor (5212) to check whether the sensing adapter (513) has been reset to the correct position.

9. A filter rod insert adding device according to claim 6, characterized in that, The frame (1) is slidably mounted on the bottom platform (8), and the bottom platform (8) is provided with a second horizontal drive assembly (9) connected to the frame (1); The sliding direction of the frame (1) is consistent with the moving direction of the lifting assembly (52).

10. A filter rod insert adding device according to claim 1, characterized in that, The strip unwinding unit (2a) and strip winding unit (2b) both include a fixed shaft (21), a sleeve (22), a limiting baffle (24), and an adjusting locking assembly (25); the sleeve (22) is rotatably sleeved on the fixed shaft (21) for mounting the strip roll; the limiting baffle (24) is mounted on the sleeve (22) and located at one end of the strip roll; the adjusting locking assembly (25) is threaded onto the sleeve (22) and cooperates with the limiting baffle (24) to restrict the axial movement of the strip roll.

11. A filter rod insert adding device according to claim 10, characterized in that, The adjusting locking assembly (25) includes an adjusting sleeve (251) and a locking nut (252); the adjusting sleeve (251) is slidably sleeved on the coil sleeve (22), and the outer periphery of the adjusting sleeve (251) is formed with a conical guide surface; the small end of the conical guide surface is close to the limiting baffle (24), and the conical guide surface extends into the inner hole of the coil; the locking nut (252) is threaded on the coil sleeve (22) to compress the adjusting sleeve (251) to move axially toward the limiting baffle (24).

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