Automatic special-shaped cigarette forming device

Abstract

The present invention relates to an automatic special-shaped cigarette forming device, including a cigarette loading mechanism, a cigarette storage material sorting mechanism, a flipping and blanking mechanism, a tobacco shred returning mechanism, a mold forming mechanism, a shaping length adjustment mechanism and a material receiving mechanism. The present invention can automatically complete the production of filter tip segments and cigarette segments "round sky and square earth" and full square cigarettes. The equipment production speed reaches 250 cigarettes / min, and the appearance is good and the shape does not rebound, which fundamentally solves the technical obstacles of the current large-scale production research of special-shaped cigarettes.

Description

Technical Field

[0001] The invention relates to a cigarette shaping device, in particular to an automatic special-shaped cigarette shaping device. Background Art

[0002] At present, consumers are no longer satisfied with traditional cylindrical cigarettes in response to the increasing demand for cigarettes. In order to enhance consumers' sensory experience, there is currently research on special-shaped cigarettes, which produce cigarettes into square or square and cylindrical "round sky and square earth" cigarettes. However, how to process such cigarettes to meet the requirements of the production line while ensuring good appearance, no rebound shape, and automatic rejection of unqualified products has become a problem that needs to be solved urgently. Summary of the invention

[0003] In order to solve the above problems, the present invention provides an automatic special-shaped cigarette forming device, which can automatically process special-shaped cigarettes according to a certain production volume and separate qualified products from unqualified products.

[0004] The technical solution of the present invention is as follows:

[0005] An automatic special-shaped cigarette forming device comprises a cigarette loading mechanism, a cigarette storage material sorting mechanism, a flipping and blanking mechanism, a tobacco shred returning mechanism, a mold closing and forming mechanism, a shaping length adjustment mechanism and a material receiving mechanism. Cigarettes enter the cigarette storage material sorting mechanism, and the automatically blanked materials are transported for material sorting and are loaded on the cigarette loading mechanism. The shaping length adjustment mechanism adjusts the position to control the shaping length, and then the flipping and blanking mechanism blanks the materials. The cigarettes are subjected to tobacco shred returning during the mold closing and forming process, and finally enter the material receiving mechanism, which separates qualified products from unqualified products.

[0006] Furthermore, the cigarette loading mechanism includes a base plate and a plurality of cigarette push rods arranged in parallel on the base plate, a linear drive device, a linear guide mechanism, and a push rod fixing seat; the proximal ends of the plurality of cigarette push rods arranged in parallel are fixed on the push rod fixing seat, and the push rod fixing seat is connected to the base plate via the linear guide mechanism; the push rod fixing seat is connected to the linear drive device.

[0007] Furthermore, the cigarette storage material organization mechanism includes a material chamber, a material guide trough is provided below the material chamber, a roller sorting mechanism with a plurality of rollers is provided at the bottom of the material guide trough, a cigarette dropping channel is provided correspondingly below the plurality of rollers, a diamond-shaped guide device is provided in the middle of the material guide trough, circular guide devices are provided on both sides, a draw plate is provided at the bottom of the material chamber, the cigarettes in the material chamber fall into the warehouse downward, the diamond-shaped guide device swings left and right to guide the cigarettes, the cigarette aligning mechanism aligns the cigarettes so that the cigarettes are evenly distributed and the ends are aligned, and the weight of the materials in the silo will not all be pressed on the rollers, the roller sorting assembly rotates forward and backward to sort, so that the cigarettes continuously enter the cigarette dropping channel; an air suction trough is arranged at the head along the movement direction of the cigarettes below the cigarette dropping channel, the air suction trough is connected to the front end of the waste suction air duct through a pipe clamp, and the rear end of the waste suction air duct is connected to the waste suction fan through the pipe clamp.

[0008] Furthermore, a roller sorting mechanism includes a motor, a main shaft connected to the motor output shaft, a roller driving bevel gear being provided on the main shaft, the roller driving bevel gear driving the roller to rotate forward and backward, the main shaft is fixed to the back plate of the silo through bearing seats at both ends, the roller driving bevel gear is composed of a plastic bevel gear and a metal bevel gear, the plastic bevel gear is fixed on the main shaft, the metal bevel gear is fixed to the rear end of the roller, the metal bevel gear is arranged below the plastic bevel gear and is driven to rotate by the plastic bevel gear, the roller is fixed to the back plate of the silo through the bearing seat, the front end of the roller passes through the back plate of the silo and extends into the silo, when the motor rotates forward and backward according to the system instruction, the main shaft rotates forward and backward, the roller rotates forward and backward under the transmission of the roller driving bevel gear, the roller drives the cigarette to move left and right in the silo by friction, and when it moves to the top of the cigarette falling channel, the cigarette falls into the cigarette falling channel under the action of the pressure formed by the cigarette's own gravity and the gravity of the cigarette above.

[0009] Furthermore, the diamond guide device is composed of a cigarette storehouse guide assembly swing cylinder, a swing arm and a four-sided diamond block. The swing cylinder of the cigarette storehouse guide assembly is fixed to the back plate of the silo, and the telescopic shaft of the swing cylinder is threadedly connected to the swing arm. The output rotating shaft of the swing arm is eccentrically connected to the four-sided diamond block. The swing cylinder of the cigarette storehouse guide assembly is telescopic and drives the four-sided diamond block to swing freely left and right through the swing arm; the circular guide device is composed of a guide cylinder and an eccentric rotating shaft installed at the bottom of the guide cylinder. The eccentric rotating shaft is fixed to the back plate of the silo through the external thread at the end of the shaft. When the silo is full of cigarettes, the diamond guide device swings left and right at a small angle under the telescopic action of the swing cylinder, thereby driving the cigarettes in the silo to swing left and right at a small angle. The circular guide device swings freely left and right under the squeezing action of the cigarettes and the deadweight of the guide cylinder.

[0010] Furthermore, the cigarette flipping and dropping mechanism includes two flipping supports, and a rotating main shaft arranged between the two flipping supports and connected to the two flipping supports; one end of the rotating main shaft is connected to a rotating drive device; the rotating drive device is fixed on the flipping support; the rotating main shaft is provided with a plurality of cigarette branch tubes fixed in parallel in a direction perpendicular to its axis; the cigarette flipping and dropping mechanism also includes: a linear drive device, a linear guide mechanism, and a guide support; the linear guide mechanism is fixed below the flipping support, and the linear drive device is fixed above the flipping support; the extension direction of the linear guide mechanism is perpendicular to the axis direction of the rotating main shaft; the guide support is fixed between the two flipping supports and arranged parallel to the rotating main shaft, and the guide support is provided with cigarette guide grooves corresponding one to one to the cigarette branch tubes.

[0011] Furthermore, the automatic mold-closing and forming mechanism for cigarettes includes a trough body, a front pressing platen, a rear pressing platen, a forming mold unit, a left pressing mold guide assembly, a right pressing mold guide assembly, a front pressing mold guide assembly, and a rear pressing mold guide assembly; the front pressing platen includes an upper front pressing platen and a lower front pressing platen, and the rear pressing platen includes an upper rear pressing platen and a lower rear pressing platen; the forming mold unit includes: a first forming mold assembly and a second forming mold assembly arranged opposite to each other, and a third forming mold assembly and a fourth forming mold assembly arranged opposite to each other; the front pressing platen and the rear pressing platen are arranged opposite to each other, and a plurality of forming mold units are arranged between the front pressing platen and the rear pressing platen along the length direction; the first forming mold assembly and the second forming mold assembly are respectively fixed on the upper front pressing platen and the upper rear pressing platen, and the third forming mold assembly and the fourth forming mold assembly are respectively fixed on the upper front pressing platen and the upper rear pressing platen, and the third forming mold assembly and the fourth forming mold assembly are respectively fixed on the upper front pressing platen and the upper rear pressing platen. The mold assemblies are respectively fixed on the lower front die plate and the lower rear die plate; the left die guide assembly is connected to the left ends of the upper front die plate and the upper rear die plate, and the right die guide assembly is connected to the right ends of the lower front die plate and the lower rear die plate; the front die guide assembly is connected to the front side of the front die plate, and the rear die guide assembly is connected to the rear side of the rear die plate; the automatic cigarette mold forming mechanism also includes: a left drive device, a right drive device, a front drive device, and a rear drive device; the left drive device is connected to the left die guide assembly through a synchronous wheel and a synchronous belt, the right drive device is connected to the right die guide assembly through a synchronous wheel and a synchronous belt, the front drive device is connected to the front die guide assembly through a synchronous wheel and a synchronous belt, and the rear drive device is connected to the rear die guide assembly through a synchronous wheel and a synchronous belt.

[0012] Furthermore, the tobacco returning mechanism includes a lifting drive device, an upper fixed plate, a lifting plate, a plurality of returning assemblies, a linear optical axis, a linear bearing, a guide shaft support, a screw assembly, and a limiting column; the screw assembly includes a screw and a nut; the two ends of the lifting plate are respectively connected to the linear optical axis through the linear bearing, and the multiple returning assemblies are fixed to the lower surface of the lifting plate; the upper fixed plate is located directly above the lifting plate, and the two ends of the upper fixed plate are respectively connected to the end of the linear optical axis through the guide shaft support; the lifting drive device is fixed to the upper surface of the upper fixed plate, and the driving end of the lifting drive device is connected to the lifting plate through the screw assembly; the screw is connected to the driving end of the lifting drive device through a coupling; the nut is connected to the lifting plate through a screw; the limiting column is located above the lifting plate and fixed to the lower surface of the fixed plate.

[0013] Furthermore, the cigarette shaping length adjustment mechanism includes a bracket with an opening structure on the upper part, a vertical drive device, a screw assembly, an upper fixed plate, a lower guide fixed plate, a guide bearing plate, a linear optical axis, an optical axis clamping sleeve, a linear guide mechanism, a blowing guide seat, and a horizontal drive device; the upper fixed plate is located above the opening of the bracket, and the upper fixed plate is fixedly connected to the bracket; the lower guide fixed plate is located in the opening of the bracket; the guide bearing plate is located above the upper fixed plate; the vertical drive device is fixed to the bottom of the bracket, and the driving end of the vertical drive device is connected to the end of the screw through a synchronous wheel and a synchronous belt, and the screw is connected to the screw through the nut The guide plate is connected to the lower guide fixing plate; the two ends of the lower guide fixing plate are respectively connected to one end of the linear optical axis through the optical axis clamping sleeve, the other end of the linear optical axis is connected to the lower surface of the guide bearing plate, and the middle part of the linear optical axis is connected to the upper fixing plate through a linear bearing; the blowing guide seat comprises a guide plate and a mounting seat; the guide plate is mounted on the mounting seat, the mounting seat is mounted on the guide bearing plate through the linear guide mechanism, and the driving end of the horizontal driving device is connected to the mounting seat; the upper surface of the guide plate is provided with a plurality of cigarette guide grooves and blowing holes, and each of the blowing holes is equipped with a piston push rod with a seal.

[0014] Furthermore, the cigarette receiving mechanism includes a supporting base plate and a U-shaped transmission synchronous belt assembly, a material dropping guide assembly, a visual inspection assembly, and a rejection and discharging assembly arranged on the supporting base plate; the material dropping guide assembly is located directly above one side of the U-shaped transmission synchronous belt assembly to guide the cigarettes into the U-shaped transmission synchronous belt assembly through the material dropping guide assembly; the visual inspection assembly is arranged upstream of the output side of the U-shaped transmission synchronous belt assembly, and is used to detect whether the cigarettes in the U-shaped transmission synchronous belt assembly are qualified; the rejection and discharging assembly is arranged downstream of the output side of the U-shaped transmission synchronous belt assembly, and is used to reject unqualified cigarettes and output qualified cigarettes according to the inspection results of the visual inspection assembly on the cigarettes.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. The special-shaped cigarette forming device of the present invention is independent of the rolling and packaging equipment, and can automatically complete the production of filter segments and cigarette segments "round sky and square earth" and full-square cigarettes. The equipment production speed reaches: 250 cigarettes / min, and the appearance is good, the shape does not rebound, and the product quality of special-shaped cigarettes is guaranteed through the visual inspection function, which fundamentally solves the technical obstacles in the current large-scale production research of special-shaped cigarettes. The design of the special-shaped cigarette forming machine includes functions such as manual cigarette loading, automatic quantitative cigarette feeding, batch pressing and forming, tobacco removal, exposed tobacco returning to the top, finished product visual inspection and rejection, and automatic belt output, which can meet the technical requirements of the project.

[0017] 2. The cigarette loading mechanism drives the push rod fixing seat through the linear drive device, which in turn drives multiple cigarette push rods to perform reciprocating linear motion. When the multiple cigarette push rods are pushed forward, the cigarettes in the U-shaped grooves of the cigarette loading slide plates corresponding to the multiple cigarette push rods in the cigarette storage mechanism are pushed into the cigarette flipping and blanking mechanism (that is, cigarette loading); then the cigarette push rods retract and the next cigarette loading process is carried out. In this way, the cigarette push rods perform reciprocating linear motion to achieve continuous cigarette loading operations.

[0018] 3. The cigarette warehouse material organization mechanism can ensure that the equipment can produce continuously for more than 15 minutes at a time. The cigarette warehouse guide device and cigarette aligning mechanism can make the cigarettes evenly distributed and aligned at the ends, and the weight of the materials in the silo will not be all pressed on the roller, which is conducive to smooth feeding and prevents cigarette bridging and misalignment. The cigarette roller is driven by the servo motor to destroy the bridging state of the cigarettes, so that the cigarettes can enter the blanking channel quickly and orderly, and the roller will not cause damage to the cigarettes. The cigarette warehouse is equipped with multiple blockage sensors to monitor the flow and blockage of cigarettes in real time. The material roller will adjust the speed in real time according to the situation and automatically clear the blockage of the feed silo.

[0019] 4. The cigarette flipping and blanking mechanism drives the rotating main shaft to rotate through the rotating drive device, thereby rotating the cigarettes sent into the cigarette branch tube by the cigarette loading mechanism by 90° to the vertical direction; at the same time, the flip support is driven by the linear drive device, and drives the rotating main shaft and the cigarettes in the multiple cigarette branch tubes arranged on the rotating main shaft to move horizontally to the feeding port of the automatic mold forming mechanism for subsequent operations.

[0020] 5. As the core component of the special-shaped cigarette forming equipment, the automatic mold closing and forming mechanism is located between the tobacco return mechanism and the cigarette shaping length adjustment mechanism inside the equipment. When the cigarette falls into the forming mold assembly, the cigarette shaping length adjustment mechanism is used to limit the falling depth. At the same time, the tobacco return mechanism extends the ejector rod from the direction of the upper cigarette into the forming mold assembly until the ejector rod contacts the cigarette. At this time, the front pressing plate and the rear pressing plate are closed under the guidance of the left, right, front and rear pressing die guide assemblies driven by the left, right, front and rear driving devices, and the real-time closed-loop control of the closing position is achieved through the displacement sensor to ensure the cigarette forming effect. After the mold closing is completed, the front and rear driving devices drive the front and rear pressing die guide assemblies to open the front molding die and the rear molding die, the tobacco return mechanism retracts, and the blowing guide seat of the shaping length adjustment assembly moves backward, and the cigarette falls into the guide groove of the receiving mechanism.

[0021] 6. The tobacco returning mechanism drives the screw assembly to rotate through the lifting drive device to drive the lifting plate to move up and down, and then drives the returning assembly to move up and down, so that after the pre-positioning of the cigarette for special-shaped shaping is completed, the front end of the returning assembly is driven by the lifting drive device to contact the tobacco surface at the end of the cigarette. During the shaping process of the cigarette, the front end of the returning assembly presses the tobacco surface of the cigarette, thereby avoiding the phenomenon of tobacco overflow (that is, tobacco protruding) caused by extrusion deformation during the shaping process; and after the shaping of the cigarette is completed, the lifting drive device drives the lifting plate to retract the returning assembly to wait for the shaping of the next group of cigarettes.

[0022] 7. A cigarette shaping length adjustment mechanism, when the cigarette is undergoing a special-shaped shaping process and when the cigarette falls into the shaping mold of the shaping mechanism, the height of the guide plate can be adjusted by a vertical drive device according to the shaping length requirements of the cigarette, that is, the height of the lower end of the cigarette can be adjusted to control the length of the cigarette inserted into the shaping mold, so that the shaping mechanism can shape the cigarette to a predetermined length; and after the cigarette is shaped, the guide plate is driven backward by a horizontal drive device to release the cigarette from the guide groove of the shaping mold to drop to the next process.

[0023] 8. The falling guide assembly of the cigarette receiving mechanism is located below the cigarette shaping length adjustment mechanism. After the cigarette is shaped, it falls into the U-shaped transmission timing belt assembly through the falling guide assembly, and is inspected by the visual inspection assembly upstream of the output side to see if the cigarette is qualified. After the cigarette moves to the rejection and discharging assembly on the output side, unqualified cigarettes are rejected and qualified cigarettes are output based on the inspection results of the visual inspection assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of a device for forming special-shaped cigarettes;

[0025] Figure 2 It is a structural schematic diagram of the back side of the special-shaped cigarette forming device;

[0026] Figure 3 It is a schematic structural diagram of an automatic special-shaped cigarette forming platform of a special-shaped cigarette forming device;

[0027] Figure 4 It is a structural schematic diagram of a cigarette loading mechanism;

[0028] Figure 5 It is a structural diagram of the material preparation mechanism of the cigarette warehouse;

[0029] Figure 6 This is a front view of the cigarette warehouse material preparation mechanism;

[0030] Figure 7 It is a structural schematic diagram of the rear side of the cigarette warehouse material preparation mechanism;

[0031] Figure 8 It is a structural schematic diagram of the diamond-shaped guide device, the roller sorting mechanism and the cigarette aligning mechanism in the cigarette storage mechanism of the cigarette storage sorting mechanism;

[0032] Fig. 9 It is a schematic diagram of the structure of the cigarette upper slide plate and the air suction slot;

[0033] Fig.10 It is a structural schematic diagram of the cigarette turning and dropping mechanism;

[0034] Fig.11 It is a three-dimensional schematic diagram of the tobacco return mechanism;

[0035] Fig.12 This is the front view of the tobacco return mechanism;

[0036] Fig.13 It is a structural schematic diagram of a return head assembly in a tobacco return mechanism;

[0037] Fig.14 It is a three-dimensional schematic diagram of the automatic cigarette mold forming mechanism;

[0038] Fig.15 for Fig.14 A top view of the automatic cigarette mold forming mechanism;

[0039] Fig.16a for Fig.14 A schematic diagram of a local enlarged structure at the location of the forming die unit;

[0040] Fig.16b It is a structural schematic diagram of a molding die assembly;

[0041] Fig.16c for Fig.16a Schematic diagram of the cross-section structure at position I;

[0042] Fig.16d for Fig.16a Schematic diagram of the cross-section structure at position H;

[0043] Fig.17 It is a structural schematic diagram of the front upper pressure plate;

[0044] Fig.18 It is a cross-sectional schematic diagram of the cigarette automatic mold closing and forming mechanism at the position of the front die guide assembly;

[0045] Fig.19 It is a cross-sectional schematic diagram of the cigarette automatic mold closing and forming mechanism at the position of the left die guide assembly;

[0046] Fig. 20 It is a structural schematic diagram of the cigarette shaping length adjustment mechanism;

[0047] Fig.21 It is a top view of the cigarette receiving mechanism;

[0048] Fig. 22 This is the front view of the cigarette receiving mechanism;

[0049] Fig.23 A bottom view of the cigarette receiving mechanism;

[0050] Fig.24 It is a structural schematic diagram of the falling material guide assembly of the cigarette receiving mechanism;

[0051] Fig.25 It is a partial cross-sectional schematic diagram of a falling material guide assembly of a cigarette receiving mechanism;

[0052] Fig.26 It is a schematic diagram of the structure of the visual detection component of the cigarette receiving mechanism;

[0053] Fig. 27 It is a structural schematic diagram of the rejecting and discharging components of the cigarette receiving mechanism;

[0054] Fig.28 It is a structural schematic diagram of the rejecting and discharging components of the cigarette receiving mechanism;

[0055] Fig.29 This is a process flow chart for the molding of special-shaped cigarettes. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the embodiments of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Install", "connect", "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. "Up", "down", "left", "right", "horizontal" and "vertical" are only used relative to the orientation of the components in the drawings. These directional terms are relative concepts. They are used for description and clarification relative to the components, and they can change accordingly according to the change of the orientation of the components in the drawings.

[0058] like Figure 1 As shown, the special-shaped cigarette forming device of this embodiment is composed of two independent platforms, an automatic special-shaped cigarette forming platform 1 and a special-shaped cigarette conveying and loading platform 3. A defective product collection box 5 is provided at one end of the automatic special-shaped cigarette forming platform 1, and the special-shaped cigarette conveying and loading platform 3 conveys qualified products. An alarm light 4 is provided at the upper end of the automatic special-shaped cigarette forming platform 1. The operation of the device and the setting of parameters are completed through the operation screen 2.

[0059] like Figure 2 As shown, the material receiving structure 1.7 of this embodiment can separate qualified products from unqualified products. Figure 3As shown, the automatic special-shaped cigarette forming platform 1 includes a cigarette loading mechanism 1.1, a cigarette bin material sorting mechanism 1.2, a flipping and blanking mechanism 1.3, a tobacco shred returning mechanism 1.4, a mold forming mechanism 1.5, a shaping length adjustment mechanism 1.6 and a material receiving mechanism 1.7. The material receiving mechanism 1.7 separates qualified products from unqualified products. The qualified products enter the special-shaped cigarette conveying and loading platform 3, and the unqualified products fall into the defective product collection box 5 through the unqualified product output belt 1.8.

[0060] The defective product output belt 1.8 is a customized product for the manufacturer, which is responsible for outputting defective products. The belt adopts green PU flat belt, driven by variable frequency speed regulating motor, and aluminum profile frame.

[0061] The special-shaped cigarette conveying and loading platform 3 is a customized product for the manufacturer. It is responsible for outputting qualified products. People can sit on both sides of the conveyor belt to pack the boxes manually. The belt adopts PVC chain plate conveyor chain transmission, and cigarette baffles are installed at regular intervals to prevent cigarettes from rolling back when climbing. It adopts variable frequency speed regulation motor drive and aluminum profile frame.

[0062] like Figure 4 As shown, the embodiment of the present application provides a cigarette loading mechanism, such as Figure 1 As shown, the cigarette loading mechanism 1.1 comprises a base plate 1.11 and a plurality of cigarette push rods 1.13, a linear drive device 1.12, a linear guide mechanism 1.14 and a push rod fixing seat 1.15 arranged on the base plate 1.11.

[0063] A plurality of cigarette push rods 1.13 are arranged in parallel, and the proximal ends of the plurality of cigarette push rods 1.13 are fixed on a push rod fixing seat 1.15, and the push rod fixing seat 1.15 is connected to the base plate 1.11 via a linear guide mechanism 1.14; a linear drive device 1.12 is connected to the push rod fixing seat 1.15, so that the linear drive device 1.12 drives the push rod fixing seat 1.15 to make reciprocating linear motion along the linear guide mechanism 1.14, and driven by the push rod fixing seat 1.15, the plurality of cigarette push rods 1.13 make reciprocating linear motion, thereby completing the loading of cigarettes from the cigarette storage material organization mechanism 1.2 to the cigarette flipping and blanking mechanism, wherein the cigarette flipping and blanking mechanism is located at the distal end of the cigarette push rod 1.13. Figure 4 Not shown.

[0064] The cigarette loading mechanism provided in the embodiment of the present application is adopted, and the push rod fixing seat is driven by the linear drive device, which in turn drives the multiple cigarette push rods to perform reciprocating linear motion. When the multiple cigarette push rods are pushed forward, the cigarettes in the U-shaped grooves of the cigarette loading slide plate corresponding to the multiple cigarette push rods in the cigarette storage mechanism 1.2 are pushed into the cigarette flipping and blanking mechanism (that is, cigarette loading); then the cigarette push rods are retracted and the next cigarette loading process is carried out. In this way, the cigarette push rods perform reciprocating linear motion to achieve continuous cigarette loading operation.

[0065] In some possible implementations, the linear drive device 1.12 may be one of a pneumatic cylinder, an oil cylinder, and an electric cylinder; for example, the linear drive device 1.12 may be a magnetically coupled pneumatic cylinder, which has an external slider on the outer surface of the cylinder barrel that moves back and forth under the action of a magnetic coupling force, driving the push rod fixing seat 1.15 to perform reciprocating linear motion along the linear guide mechanism 1.14.

[0066] In some possible implementations, the plurality of cigarette pushers 1.13 arranged in parallel are 20 to 40 cigarette pushers 1.13. Schematically, in some embodiments, the number of cigarette pushers 1.13 may be 30.

[0067] Specifically, by setting the number of multi-cigarette push rods 1.13 to be greater than or equal to 20, the efficiency of cigarette loading can be guaranteed and a sufficient number of cigarettes can be loaded in one cigarette loading process; by setting the number of multi-cigarette push rods 1.13 to be less than or equal to 40, the volume of the entire cigarette loading mechanism can be ensured to be moderate, and the control of the entire mechanism is also facilitated.

[0068] In some possible implementations, in order to ensure the smooth movement of the push rod fixing seat 1.15, as Figure 4 As shown, the push rod fixing seat 1.15 and the base plate 1.11 can be connected by two sets of linear guide mechanisms 1.14 arranged in parallel and at intervals.

[0069] As shown, in some embodiments, the linear guide mechanism 1.14 may include: a linear guide rail located on the base plate 1.11, and a slider located on the side of the push rod fixing seat 1.15 facing the base plate 1.11, the slider being located in the linear guide rail, and through the cooperation between the slider and the linear guide rail, the linear reciprocating drive of the push rod fixing seat 1.15 (cigarette push rod 1.13) is completed under the action of the linear drive device 1.12.

[0070] like Figure 5 As shown, the cigarette bin material sorting mechanism 1.2 of the special-shaped cigarette forming machine of this embodiment is arranged above the cigarette loading mechanism 1.1.

[0071] like Figure 6 As shown, the cigarette storage material arrangement mechanism 1 of the special-shaped cigarette forming machine includes a material chamber 1.21, a sheet metal material guide trough 1.23 is provided below the material chamber 1.21, a roller sorting mechanism 1.24 is provided at the bottom of the material guide trough, and the roller sorting mechanism 1.24 includes 29 sorting rollers 1.247 corresponding to the corresponding cigarette dropping sub-channels 1.25. The guide device 1.22 includes a diamond guide device 1.222 and a circular guide device 1.221, a diamond guide device 1.222 is provided in the middle of the material guide trough 1.23, and circular guide devices 1.221 are provided on both sides.

[0072] A raw material tray drawer 1.29 is provided at the bottom of the material chamber 1.21, and the cigarettes in the material chamber 1.21 fall downward into the warehouse. The guide device 1.22 guides the cigarettes and cooperates with the cigarette aligning mechanism 1.26 to make the cigarettes evenly distributed and the ends aligned, and the weight of the materials in the silo will not be all pressed on the sorting roller 1.247. The roller 1.247 swings left and right for sorting, so that the cigarettes enter the cigarette falling sub-channel 1.25.

[0073] An air suction groove is arranged below the cigarette drop channel 1.25 along the cigarette movement direction. The air suction groove is connected to the front end of the exhaust air suction pipe 1.27 through a pipe clamp, and the rear end of the exhaust air suction pipe 1.27 is connected to the exhaust suction fan 1.28 through a pipe clamp.

[0074] The guide chute 1.23 is also provided with a plurality of blockage sensors 1.210, which monitor and transmit the flow and blockage conditions of cigarettes in real time. The controller controls the roller sorting mechanism 1.24 to clear the blockage of the feed bin according to the conditions transmitted by the blockage sensors.

[0075] In this embodiment, high and low level switches can also be provided in the material chamber 1.21 to detect the cigarette capacity in the silo. When the silo is full of cigarettes, the high level switch and the low level switch will detect the cigarette signals at the same time. As cigarettes are continuously produced and consumed, the cigarette level in the silo will gradually decrease. When the high level switch cannot detect the cigarette signals, the system will automatically alarm and prompt the operator to manually load the cigarettes. If the cigarette level continues to drop to the point where the low level switch cannot detect the cigarette signals, the system will automatically alarm and stop the machine and prompt the operator to manually load the cigarettes.

[0076] After the raw material tray is manually loaded into the cigarette warehouse mechanism, the plug plate is manually pulled out, and the cigarettes automatically fall into the material warehouse by their own weight. One loading can ensure that the equipment can produce continuously for more than 15 minutes.

[0077] The raw material tray is manually placed above the material bin, the draw plate is removed, and cigarettes begin to be fed by their own weight. The cigarette bin guide device 1.22 and the cigarette aligning mechanism 1.26 in the cigarette bin mechanism can make the cigarettes evenly distributed and the ends aligned, and the weight of the bin material will not be all pressed on the roller, which is conducive to smooth feeding and prevents cigarette bridging and misalignment.

[0078] like Figure 5-7 As shown, the cigarette storehouse guide device 1.22 includes circular guide devices 1.221 on both sides and a quadrangular diamond guide device 1.222 in the middle. The quadrangular diamond guide device 1.222 is composed of a cigarette storehouse guide component swing cylinder 1.224, a cigarette storehouse guide component swing arm 1.223 and a quadrangular diamond block. The cigarette storehouse guide component swing cylinder 1.224 is fixed to the back plate of the silo by screws, as shown in FIG. Figure 7As shown, the telescopic shaft of the swing cylinder 1.224 of the guide assembly is connected to the swing arm 1.223 of the cigarette bin guide assembly through a thread, and the output rotating shaft of the swing arm 1.223 is eccentrically connected to the four-sided diamond block, so that the swing cylinder 1.224 of the cigarette bin guide assembly can be extended and retracted and drive the four-sided diamond block to swing freely left and right through the swing arm. Figure 8 As shown, the cigarette bin guide assembly swing arm 1.223 is connected to the rhombus guide assembly shaft 1.225, the rhombus guide assembly shaft 1.225 is eccentrically connected to the four-sided rhombus block, and the rhombus guide assembly shaft 1.225 is arranged on the back plate of the silo through a bearing 1.226 and a bearing seat 1.227.

[0079] The circular guide device 1.221 can be composed of a guide cylinder and an eccentric rotating shaft installed at the bottom of the guide cylinder. The eccentric rotating shaft is fixed to the back plate of the material bin through the external thread at the end of the shaft. When the material bin is full of cigarettes, the four-sided diamond guide device swings left and right at a small angle under the telescopic action of the swing cylinder 1.224, thereby driving the cigarettes in the material bin to swing left and right at a small angle. The circular guide devices installed on the left and right sides of the material bin can swing freely left and right under the squeezing action of the cigarettes and the weight of the guide cylinder. The circular guide device is driven, and the middle diamond guide device actively swings left and right freely, allowing the cigarettes to swing left and right to facilitate the falling of the cigarettes. In order to prevent the cigarettes from being deformed, the circular guide device passively swings left and right in accordance with the swinging direction of the cigarettes.

[0080] like Figure 7-8 As shown, the roller sorting mechanism includes a roller servo motor 1.243, a main shaft 1.241 connected to the output shaft of the motor 1.243, a roller driving bevel gear 1.242 is provided on the main shaft 1.241, and the roller driving bevel gear 1.242 drives the roller 1.247 to rotate forward and reversely. The main shaft 1.241 is fixed to the back plate of the silo through bearing seats 1.246 at both ends, and the roller servo motor 1.243 is fixed to the back plate of the silo through the motor seat. The roller driving bevel gear 1.242 consists of a plastic bevel gear 1.2422 and a metal bevel gear 1.2421. The plastic bevel gear 1.2422 is fixed to the main shaft 1.241 through a set screw, and the metal bevel gear is fixed to the rear end of the roller through a set screw. The plastic bevel gear 1.2422 and the metal bevel gear 1.2421 are gear meshing, and the gear shaft direction changes 90 degrees.

[0081] The roller 1.247 is fixed to the back plate of the silo through the bearing seat 1.248. The front end of the roller 1.247 passes through the back plate of the silo and extends into the silo. The synchronous pulleys 1.245 are a pair, one is fixed to the main shaft 1.241, and the other is fixed to the roller servo motor 1.243. The pair of synchronous pulleys 1.245 are connected by a synchronous belt and rotate synchronously. When the servo motor 1.243 rotates forwards and backwards according to the system instruction, the main shaft 1.241 also rotates forwards and backwards under the drive of the synchronous belt and the synchronous pulley 1.245, and the roller 1.247 also rotates forwards and backwards under the drive of the roller driving helical gear. The upper end of the roller sorting mechanism that rotates forwards and backwards drives the cigarettes to move left and right in the silo by friction. When it moves to the top of the cigarette falling channel, it falls into the cigarette falling channel due to the pressure formed by the cigarette's own gravity and the gravity of the cigarettes above. No matter at any time, the movement direction of all the rollers is the same, either moving clockwise or counterclockwise, and the direction depends on the rotation direction of the roller servo motor at that time.

[0082] like Figure 8 As shown, the cigarette aligning mechanism 1.26 is mainly composed of an acrylic door panel 1.264, a flap handle 1.261, a flap connecting rod 1.262, a connecting rod fixing seat 1.265 and a flap cylinder 1.263. The upper and lower acrylic door panels 1.264 are fixed to the silo front panel 1.213 by hinges, the connecting rod fixing seat 1.265 is fixed to the upper acrylic door panel 1.264 by screws, the connecting rod fixing seat 1.265 is connected to the flap connecting rod 1.262 through the flap handle 1.261, the flap connecting rod 1.262 is connected to the telescopic shaft of the flap cylinder 1.263 by threads, and the flap cylinder 1.263 passes through the middle of the four-sided rhombus guide device 1.222 and is fixed to the back plate of the silo. When the telescopic shaft of the flap door cylinder 1.263 is extended and retracted, the telescopic shaft drives the acrylic door panel 1.264 equipped with the connecting rod fixing seat 1.265 to swing forward and backward at a small angle through the flap door connecting rod 1.262, thereby automatically aligning the ends of the cigarettes in the silo. In this embodiment, the cylinder piston of the flap door cylinder 1.263 can be movably connected to the existing buckle assembly (for example, it can include a buckle, a buckle shaft and a torsion spring), which is achieved through the buckle shaft and torsion spring on the buckle assembly. The buckle assembly is connected to the connecting rod fixing seat 1.265, thereby driving the acrylic door panel to move with the hinge as the fulcrum.

[0083] In this embodiment, the diamond-shaped guide device is hollow in design, and the aligning cylinder 1.263 passes through the blank space in the middle of the diamond. Both are independently controlled by two cylinders. In addition, the left and right movement range of the diamond-shaped device and the swing range of the aligning cylinder are very limited and will not interfere with each other.

[0084] like Figure 5 , 6As shown in 9, the cigarette loading slide plate 1.211 is installed by screws just below the 30 blanking sub-channels. The cigarette loading slide plate 1.211 is provided with 30 U-shaped cigarette positioning grooves, which correspond to the 30 blanking sub-channels one by one and are used for positioning and guiding cigarettes to ensure stable and reliable cigarette loading.

[0085] The suction trough 1.2111 of the slideway is used to suck away the tobacco shreds dropped from the cigarette bin in real time through the exhaust suction fan to keep the smoke supply channel unobstructed. The suction wind force is about 20KPA. The exhaust suction fan that provides suction is equipped with a manual speed regulator. A bypass valve with a manually adjustable opening is provided on the suction pipeline. The operator can manually adjust the speed regulator and bypass valve according to the falling conditions of the cigarettes to adjust the suction wind force and air volume, so as not to affect the arrangement and falling of cigarettes.

[0086] In this embodiment, the automatic cigarette sorting mechanism 1.24 is driven by a servo motor, and a plurality of cigarette rollers are installed on the mechanism. The cigarette rollers are driven by the servo motor to destroy the bridging state of the cigarettes, so that the cigarettes can enter the 30 drop-off sub-channels quickly and orderly, and the rollers will not cause damage to the cigarettes.

[0087] The cigarette storage of this embodiment is equipped with multiple blockage sensors to monitor the flow and blockage of cigarettes in real time. The material-discharging roller will adjust the rotation speed in real time according to the situation, and automatically clear the blockage at the opening of the material-dropping sub-channel. All 30 material-dropping sub-channels have undergone precise sliding trajectory simulation, and the channels have been mirror-polished to ensure that cigarettes can move unimpeded in the channels. When manual intervention to clear the blockage is required, the acrylic door panel of the cigarette storage mechanism can be opened to operate. In particular, the slide plate for loading cigarettes is provided with suction grooves arranged along the movement direction of the cigarettes, which can suck away the tobacco shreds dropped in the cigarette storage in real time through the exhaust fan to keep the cigarette loading channel unobstructed.

[0088] When in use, a whole box of cigarettes is manually placed into the raw material tray, the plug plate is pulled out, and the cigarettes fall into the warehouse under their own weight. The guide device swings left and right to guide the cigarettes, and the roller sorting assembly swings left and right to sort the cigarettes into the cigarette falling channel, where they stay in the groove of the cigarette loading slide, waiting for the cigarette loading mechanism to load the cigarettes.

[0089] The cigarettes in the cigarette storage material arrangement mechanism 1.2 are guided by the cigarette storage guide device, the cigarette aligning mechanism and the multiple cigarette drop channels, and fall into the front of the cigarette loading mechanism of the multiple push rods through the action of the rollers and their own weight, completing the cigarette drop.

[0090] like Fig.10 As shown, the cigarette turning and dropping mechanism 1.3 of this embodiment comprises two turning supports 1.33 arranged opposite to each other, and a rotating main shaft 1.32 arranged between the two turning supports 1.33 and connected to the two turning supports.

[0091] One end of the rotating main shaft 1.32 is connected to the rotating driving device 1.35; the rotating driving device 1.35 is fixed on the flip support 1.33; the rotating main shaft 1.32 is fixed with multiple cigarette branch pipes 1.31 (for example, stainless steel pipes) in parallel along the direction perpendicular to its axis; thereby, the rotating main shaft 1.32 is driven to rotate by the rotating driving device 1.35, and the cigarette branch pipes 1.31 are further driven to rotate.

[0092] The cigarette turning and dropping mechanism also includes: a linear drive device 1.34, a linear guide mechanism 1.36, and a guide support 1.37.

[0093] The linear guide mechanism 1.36 is fixed below the flip support 1.33, and the linear drive device 1.36 is fixed above the flip support 1.33; the extension direction of the linear guide mechanism 1.36 is perpendicular to the axial direction of the rotating main shaft 1.31; thereby, the flip support 1.33 is driven to move along the linear guide mechanism 1.36 by the linear drive device 1.36, thereby driving the rotating main shaft 1.32 and the multiple cigarette branch tubes 1.31 arranged on the rotating main shaft 1.32 to perform reciprocating linear motion along the axial direction perpendicular to the rotating main shaft 1.31.

[0094] The guide support 1.37 is fixed between the two flip supports 1.33 and is arranged parallel to the rotating main shaft 1.32, and the guide support 1.37 is provided with cigarette guide grooves corresponding to the cigarette branch tubes 1.31. In this way, when the cigarette branch tubes 1.31 are driven by the rotating main shaft 1.32 to rotate 90 degrees from the horizontal direction to the vertical direction, the ends of the cigarettes in the cigarette branch tubes 1.31 contact the guide support 1.37, and the cigarettes are guided by the cigarette guide grooves on the guide support 1.37.

[0095] The cigarette flipping and dropping mechanism of the present application is adopted, and the rotating main shaft is driven to rotate by the rotating drive device, so that the cigarettes sent into the cigarette branch tube by the cigarette loading mechanism are rotated 90° to the vertical direction; at the same time, the flip support is driven by the linear drive device, and the rotating main shaft and the cigarettes in the multiple cigarette branch tubes arranged on the rotating main shaft are driven to move in the horizontal direction to the feeding port of the automatic mold forming mechanism for subsequent operations.

[0096] In some possible implementations, in order to detect whether there is a cigarette in each cigarette tube 1.31, so as to make corrections, such as Fig.10As shown, the cigarette flipping and dropping mechanism may also include: an optical fiber fixing seat 1.38 fixed to the side of the guide support 1.37; an optical fiber sensor 1.39 corresponding to the cigarette guide groove (or the cigarette branch tube 1.31) is arranged on the optical fiber fixing seat 1.38, so that after the rotating main shaft is driven to rotate by the rotating drive device, the cigarette sent into the cigarette branch tube by the cigarette loading mechanism is rotated 90° to the vertical direction, and the optical fiber sensor 1.39 is used to detect whether there is a cigarette in the cigarette branch tube 1.31.

[0097] As shown, in some possible implementations, the above-mentioned rotation drive device may include a rotation cylinder, and the driving end of the rotation cylinder is connected to the rotation main shaft.

[0098] As shown, in some possible implementations, the linear drive device 1.34 may include a horizontal push-pull cylinder, and a drive end of the horizontal push-pull cylinder is connected to the flip support 1.33.

[0099] As shown, in some possible implementations, the linear guide mechanism 1.36 may include: a slider disposed below the flip support 1.33, and a linear guide rail fixedly disposed on the frame, so that under the drive of the linear drive device 1.34, the flip support 1.33 drives the rotating main shaft 1.32 and the plurality of cigarette branch tubes 1.31 disposed on the rotating main shaft 1.32 to move along the linear guide rail.

[0100] like Fig.11 As shown, the tobacco shreds return mechanism of this embodiment. Fig.12 ( Fig.11 The tobacco top-returning mechanism includes a lifting drive device 1.401, an upper fixing plate 1.44, a lifting plate 1.45, a plurality of top-returning components 1.402, a linear optical axis 1.48, a linear bearing 1.47, a guide shaft support 1.46, a screw assembly 1.49, and a limit column 1.41. The screw assembly 1.49 includes a screw and a nut.

[0101] Illustratively, the plurality of return-to-top components 1.402 may be 20 to 40 return-to-top components 1.402; for example, the plurality of return-to-top components 1.402 may be 30 return-to-top components 1.402.

[0102] like Fig.12 As shown, both ends of the lifting plate 1.45 are connected to the linear optical axis 1.48 through linear bearings 1.47, and a plurality of return top components 1.402 are fixed to the lower surface of the lifting plate 1.45; that is, when the lifting plate 1.45 is moved up and down, the return top components 1.402 can be driven to move up and down at the same time.

[0103] The upper fixing plate 1.44 is located directly above the lifting plate 1.45 (that is, the upper fixing plate 1.44 is located on the side of the lifting plate 1.45 away from the return top assembly 1.402), and both ends of the upper fixing plate 1.44 are respectively connected to the ends of the linear optical axis 1.48 through guide shaft supports 1.46.

[0104] The lifting drive device 1.401 is fixed to the upper surface of the upper fixed plate 1.44 (that is, the lifting drive device 1.401 is fixed to the surface of the upper fixed plate 1.44 away from the lifting plate 1.45), and the driving end of the lifting drive device 1.401 is connected to the lifting plate 1.45 through the screw assembly 1.49; in this way, the lifting drive device 1.401 drives the screw assembly to rotate, thereby driving the lifting plate 1.45 to move up and down, and then driving the return assembly 1.402 to move up and down.

[0105] The limiting column 1.41 is located above the lifting plate 1.45 and fixed to the lower surface of the upper fixed plate 1.44. The limiting column 1.41 is used to limit the upward movement distance of the lifting plate 1.45.

[0106] The screw assembly 1.49 is arranged below the upper fixed plate 1.44, the screw rod is connected to the driving end of the lifting drive device 1.401 through a coupling, and the nut is connected to the lifting plate 1.45 through a screw. Through the cooperation of the lifting drive device 1.401 and the screw assembly 1.49, the downward movement distance of the lifting plate 1.45 can be accurately controlled.

[0107] The tobacco returning mechanism drives the lifting plate to move up and down through the screw assembly via the lifting drive device, thereby driving the returning assembly to move up and down, so that after the pre-positioning of the cigarette for special-shaped shaping is completed, the front end of the returning assembly is driven by the lifting drive device to contact the tobacco surface of the upper end of the cigarette. During the shaping process of the cigarette, the front end of the returning assembly presses the tobacco surface of the cigarette, thereby avoiding the phenomenon of tobacco overflow (that is, tobacco protruding) due to extrusion deformation during the shaping process; and after the cigarette shaping is completed, the lifting plate is driven by the lifting drive device to retract the returning assembly, waiting for the shaping of the next group of cigarettes.

[0108] Among some possible implementations, Fig.12 As shown, a proximity sensor may be provided inside the above-mentioned limiting pillar 1.41 to accurately control the upward movement distance of the lifting plate 1.45 to avoid collision between the lifting plate 1.45 and the limiting pillar 1.41.

[0109] Among some possible implementations, Fig.12As shown, the lifting drive device 1.401 may include a servo motor 1.42. In this case, the driving end of the servo motor 1.42 is connected to a coupling 1.43, and the output end of the coupling 1.43 is connected to the lifting plate 1.45 through a screw assembly 1.49.

[0110] In some possible implementations, such as Fig.12 As shown, the return assembly 1.402 may include: a return connecting rod 1.412, a coupling 1.411, and a return head assembly 1.410. One end of the return connecting rod 1.412 is connected to the lifting plate 1.45, and the other end is connected to the return head assembly 1.410 through the coupling 1.411.

[0111] In some possible implementations, such as Fig.13 As shown, the return head assembly 1.410 may include a return head 1.4101 and a return head fixing member 1.4102; wherein the return head 1.4101 is connected to the coupling 1.411 via the return head fixing member 1.4102.

[0112] In some possible implementations, the coupling 1.411 can be a flexible coupling, and the return head can be made of a flexible plastic material, so as to increase the deflection of the ejector rod and avoid deformation of the return rod 1.412 due to relative position error of the mechanism. On the other hand, due to relative position error, assembly processing, etc., the relative positions of multiple groups (for example, 30 groups) of return head assemblies 1.402 of the tobacco return mechanism will deviate. When the automatic mold-closing and molding mechanism of the cigarette is opened, multiple groups of return head assemblies 1.402 are automatically inserted into the mold cavity. When the automatic mold-closing and molding mechanism of the cigarette is closed, multiple groups of return head assemblies 1.410 have large deflection, so they can automatically perform floating fine-tuning according to the position of their respective mold cavities during the mold closing, ensuring the reliability of the return, while also avoiding the head assembly from being crushed due to position error, ensuring the service life of the return head assembly.

[0113] like Fig.14 As shown, the automatic cigarette mold forming mechanism of this embodiment. Fig.15 ( Fig.14 As shown in the top view of the figure, the automatic cigarette mold forming mechanism includes a groove body 1.51, a front pressing plate 1.52 arranged in the groove body 1.51, a rear pressing plate 1.53, a forming mold unit 1.54, a left pressing die guide assembly 1.55, a right pressing die guide assembly 1.56, a front pressing die guide assembly 1.57, and a rear pressing die guide assembly 1.58.

[0114] like Fig.16aAs shown, the molding die unit 1.54 includes: a first molding die assembly 1.541 and a second molding die assembly 1.542 arranged opposite to each other, and a third molding die assembly 1.543 and a fourth molding die assembly 1.544 arranged opposite to each other. Schematically, the structures of the first molding die assembly 1.541, the second molding die assembly 1.542, the third molding die assembly 1.543, and the fourth molding die assembly 1.544 can be the same; for example, they can all adopt Fig.16b The invention discloses a structure comprising a rod-shaped forming part and a fixing part located at one end of the rod-shaped forming part.

[0115] like Fig.16c ( Fig.16a Schematic diagram of the cross section at position I) and Fig.16d ( Fig.16a In the cross-sectional schematic diagram at the H position), the front pressing plate 1.52 and the rear pressing plate 1.53 are arranged relatively to each other, the front pressing plate 1.52 includes an upper front pressing plate 1.521 and a lower front pressing plate 1.522, and the rear pressing plate 1.53 includes an upper rear pressing plate 1.531 and a lower rear pressing plate 1.532.

[0116] like Fig.15 As shown, a plurality of forming die units 1.54 are arranged along the length direction between the front pressing plate 1.52 and the rear pressing plate 1.53.

[0117] Combination Fig.15 , Fig.16a and Fig.16c As shown, the first molding die assembly 1.541 and the second molding die assembly 1.542 are respectively fixed on the upper front pressing die plate 1.521 and the upper rear pressing die plate 1.531; schematically, in some possible implementation methods, the top ends of the upper front pressing die plate 1.521 and the upper rear pressing die plate 1.531 are provided with a first guide groove and a second guide groove; the first molding die assembly 1.541 is fixed in the first guide groove, and the second molding die assembly 1.542 is fixed in the second guide groove.

[0118] Combination Fig.15 , Fig.16a and Fig.16d As shown, the third molding die assembly 1.543 and the fourth molding die assembly 1.544 are respectively fixed on the lower front pressing plate 1.522 and the lower rear pressing plate 1.532. Schematically, in some possible implementations, the bottoms of the lower front pressing plate 1.522 and the lower rear pressing plate 1.532 are respectively provided with a third guide groove and a fourth guide groove; the third molding die assembly 1.543 is fixed in the third guide groove, and the fourth molding die assembly 1.544 is fixed in the fourth guide groove. That is, the four molding die assemblies in the molding die unit 1.54 are respectively guided and positioned accurately through the guide grooves, and it is also convenient to replace molding die assemblies of different specifications.

[0119] This embodiment does not impose any specific restrictions on the specific configuration of the first guide groove, the second guide groove, the third guide groove, and the fourth guide groove. Fig.17 As shown, the first guide groove w located at the top of the upper front pressing plate 1.521 can adopt a dovetail groove structure. Similarly, the second guide groove, the third guide groove and the fourth guide groove can also adopt a dovetail groove structure.

[0120] In addition, refer to Fig.15 The left die guide assembly 1.55 is connected to the left ends of the upper front die plate 1.521 in the front die plate 1.52 and the upper rear die plate 1.531 in the rear die plate 1.53, and the right die guide assembly 1.56 is connected to the right ends of the lower front die plate 1.522 in the front die plate 1.52 and the lower rear die plate 1.532 in the rear die plate 1.53; the front die guide assembly 1.57 is connected to the front side of the front die plate 1.52 (including 1.521 and 1.522), and the rear die guide assembly 1.58 is connected to the rear side of the rear die plate 1.53 (including 1.531 and 1.532).

[0121] In addition, if Fig.15 As shown, the automatic cigarette mold forming mechanism also includes: a left drive device 1.59 connected to the left die guide assembly 1.55, a right drive device 1.510 connected to the right die guide assembly 1.56, a front drive device 1.511 connected to the front die guide assembly 1.57, and a rear drive device 1.512 connected to the rear die guide assembly 1.58.

[0122] It should be noted that this embodiment does not impose any specific restrictions on the arrangement of the above-mentioned left, right, front and rear drive devices (1.59, 1.510, 1.511, 1.512), and does not impose any specific restrictions on the connection method between the left, right, front and rear drive devices (1.59, 1.510, 1.511, 1.512) and the left, right, front and rear die guide assemblies (1.55, 1.56, 1.57, 1.58); but it can be understood that the left, right, front and rear drive devices (1.59, 1.510, 1.511, 1.512) and the left, right, front and rear die guide assemblies (1.55, 1.56, 1.57, 1.58) must adopt a transmission connection.

[0123] As shown, taking the connection between the left drive device 1.59 and the left die guide assembly 1.55 as an example, in some possible implementations, the left drive device 1.59 can use a servo motor, and the output end of the servo motor is connected to the input end (such as a screw) of the left die guide assembly 1.55 through a synchronous belt and a synchronous wheel. Similarly, the connection between the right, front, and rear drive devices (1.510, 1.511, 1.512) and the right, front, and rear die guide assemblies (1.56, 1.57, 1.58) is not repeated here.

[0124] As the core component of the special-shaped cigarette forming equipment, the automatic mold closing and forming mechanism of cigarettes is located between the tobacco return mechanism and the cigarette shaping length adjustment mechanism inside the equipment. When the cigarette falls into the forming mold assembly, the falling depth is limited by the cigarette shaping length adjustment mechanism. At the same time, the tobacco return mechanism extends the ejector rod from the direction of the upper cigarette into the forming mold assembly until the ejector rod contacts the cigarette. At this time, the front pressing plate and the rear pressing plate close the mold under the guidance of the left, right, front and rear pressing die guide assemblies driven by the left, right, front and rear driving devices, and the real-time closed-loop control of the closing position is realized through the displacement sensor to ensure the cigarette forming effect. After the mold closing is completed, the left, right, front and rear driving devices drive the left, right, front and rear pressing die guide assemblies to open the first, second, third and fourth forming mold assemblies, the tobacco return mechanism retracts, and the blowing guide seat of the shaping length adjustment assembly moves backward, and the cigarette falls into the guide groove of the receiving mechanism.

[0125] According to needs, the depth of the cigarette falling into the forming mold assembly can be adjusted, thereby automatically completing the production of filter segments and cigarette segments with "round sky and square earth" (one end is round and the other end is square) and fully square cigarettes.

[0126] In some embodiments, the production capacity of the special-shaped cigarette forming equipment using the automatic mold closing and forming mechanism of the present application reaches: 250 cigarettes / min.

[0127] The specific configuration of the front die guide assembly 1.57 and the rear die guide assembly 1.58 is further described below. Fig.15 As shown, the front die guide assembly 1.57 and the rear die guide assembly 1.58 have the same structure, and the two are symmetrically arranged front to back. The front die guide assembly 1.57 is taken as an example for explanation.

[0128] like Fig.18 As shown, the front die guide assembly 1.57 includes a screw 1.571, a bearing 1.572, a nut 1.574, a linear guide 1.575, a guide mounting block 1.576 and a limit bump block 1.577.

[0129] The first end of the screw rod 1.571 is connected to the aforementioned front drive device 1.511 through a synchronous wheel and a synchronous belt transmission, the middle part of the screw rod 1.571 is fixed to the groove body 1.51 through a bearing 1.572, and the second end of the screw rod 1.571 is connected to the nut 1.574.

[0130] The left side of the guide mounting block 1.576 is connected to the upper side of the nut 1.574, and the lower side of the guide mounting block 1.576 is connected to the bottom of the trough body 1.51 through a linear guide rail 1.575; the right side of the guide mounting block 1.576 is connected to the upper front pressing plate 1.521 and the lower front pressing plate 1.522 through the linear guide rail of the front pressing plate 1.52.

[0131] In some possible implementations, in order to limit the movement distance of the guide mounting block 1.576 in the direction away from the front pressing plate 1.52, as Fig.18 As shown, the front die guide assembly 1.57 also includes a limit bump block 1.577; the limit bump block 1.577 is arranged on the left side of the guide mounting block 1.576.

[0132] In addition, the specific configuration of the left die guide assembly 1.55 and the right die guide assembly 1.56 is further described below. Fig.15 As shown, the structures of the left die guide assembly 1.55 and the right die guide assembly 1.56 are the same, and the left die guide assembly 1.55 is taken as an example for explanation.

[0133] like Fig.19 As shown, the left die guide assembly 1.55 includes: a screw rod 1.551, a bearing 1.552, a nut 1.553, a guide mounting block 1.554, a front die connecting seat 1.555, and a rear die connecting seat 1.556.

[0134] The first end of the screw rod 1.551 is connected to the left driving device 1.59 through a synchronous wheel and a synchronous belt transmission. The middle part of the screw rod 1.551 is fixed on the groove body 1.51 through a bearing 1.552; the second end of the screw rod 1.551 is installed on the guide mounting block 1.554 through a nut 1.553.

[0135] The front end on the right side of the guide mounting block 1.554 is connected to the front die connecting seat 1.555 through a linear guide rail 1.558, and the front die connecting seat 1.555 is connected to the left end of the upper front die plate 1.521; the rear end on the right side of the guide mounting block 1.554 is connected to the rear die connecting seat 1.556 through a linear guide rail 1.559, and the rear die connecting seat 1.556 is connected to the left end of the upper rear die plate 1.531.

[0136] It should be noted here that the structural settings of the left die guide assembly 1.55 and the right die guide assembly 1.56 are basically the same and will not be repeated here. For the specific structure of the right die guide assembly 1.56, reference can be made to the relevant settings of the aforementioned left die guide assembly 1.55.

[0137] The right die guide assembly 1.56 differs from the left die guide assembly 1.55 in that:

[0138] In the right die guide assembly 1.56, the front end of the left side of the guide mounting block is connected to the front die connecting seat 1.555 through a linear guide rail, and the front die connecting seat 1.555 is connected to the right end of the lower front die plate 1.522; the rear end of the left side of the guide mounting block is connected to the rear die connecting seat 1.556 through a linear guide rail, and the rear die connecting seat 1.556 is connected to the right end of the lower rear die plate 1.532.

[0139] In some possible implementations, in order to ensure the stability of the guide mounting block 1.554 in the left die guide assembly 1.55, as Fig.19 As shown, the front and rear ends of the left side of the guide mounting block 1.554 can be respectively mounted on the tank body 1.51 through linear bearings. Similarly, the front and rear ends of the right side of the guide mounting block 1.554 in the right die guide assembly 1.56 can be respectively mounted on the tank body 1.51 through linear bearings.

[0140] like Fig. 20 As shown, the cigarette shaping length adjustment mechanism 1.6 of this embodiment includes: a bracket 1.61 with an opening structure at the top, a vertical driving device 1.62, a screw assembly 1.63, an upper fixing plate 1.64, a lower guide fixing plate 1.65, a guide bearing plate 1.66, a linear optical axis 1.67, a linear guide mechanism 1.68, an air blowing guide seat 1.69, and a horizontal driving device 1.610. Among them, the screw assembly 1.63 includes a screw and a nut.

[0141] The upper fixing plate 1.64 is located above the opening of the bracket 1.61, and the upper fixing plate 1.64 is fixedly connected to the bracket 1.61; schematically, the upper fixing plate 1.64 can be fixedly connected to the bracket 1.61 by screws. The lower guide fixing plate 1.65 is located in the opening of the bracket 1.61; the guide bearing plate 1.66 is located above the upper fixing plate 1.64.

[0142] The vertical drive device 1.62 is fixed to the bottom of the bracket 1.61, and the driving end of the vertical drive device 1.62 is connected to the end of the screw rod through a synchronous wheel and a synchronous belt, and the screw rod is connected to the lower guide fixing plate 1.65 through a screw nut. Schematically, the vertical drive device 1.62 can be a servo motor, in which case the output end of the servo motor is connected to the input end of the screw rod through a synchronous wheel and a synchronous belt, thereby driving the screw rod to rotate.

[0143] The two ends of the lower guide fixing plate 1.65 are respectively connected to one end (i.e., the lower end) of the linear optical axis 1.67 through an optical axis clamping sleeve 1.612, and the other end (i.e., the upper end) of the linear optical axis 1.67 is connected to the lower surface of the guide bearing plate 1.66, and the middle part of the linear optical axis 1.67 is connected to the upper fixing plate 1.64 through a linear bearing 1.611.

[0144] That is to say, the vertical driving device 1.62 can drive the screw assembly 1.63 to drive the lower guide fixing plate 1.65 to move up and down, thereby driving the guide bearing plate 1.66 to move up and down.

[0145] In addition, the blowing guide seat 1.69 includes a guide plate 1.691 and a mounting seat 1.692.

[0146] The upper surface of the guide plate 1.691 is provided with a plurality of cigarette guide grooves (for example, 30) and blowing holes, each of which is equipped with a sealed piston push rod. The guide plate 1.691 is mounted on a mounting seat 1.692, and the mounting seat 1.692 is mounted on a guide bearing plate 1.66 through a linear guide mechanism 1.68. The driving end of the horizontal driving device 1.610 is connected to the mounting seat 1.692; thus, under the drive of the horizontal driving device 1.610, the guide plate 1.691 can be driven to make linear reciprocating motion along the linear guide mechanism 1.68 by driving the mounting seat 1.692.

[0147] In some possible implementations, the horizontal drive device 1.610 may include a translation cylinder.

[0148] Among some possible implementations, Fig. 20 As shown, the above-mentioned mounting seat 1.692 includes a first connecting portion S1, and a second connecting portion S2 connected to the two side surfaces of the two first extension portions S1 and extending upward; a guide plate 1.691 is fixed on the outer side of the second connecting portion S2; and the lower surfaces of the two first connecting portions S1 are respectively mounted on the guide bearing plate 1.66 through a linear guide mechanism 1.68.

[0149] It should be noted that, for the above-mentioned guide plate 1.691, its upper surface is provided with a plurality of cigarette guide grooves and blowing holes, and each blowing hole is provided with a sealed piston push rod. Specifically, when the cigarette is ready to fall from the flipping and blanking mechanism into the shaping mechanism mold, the horizontal drive device 1.610 will extend the drive guide plate 1.691 in advance, the blowing holes will be ventilated, and the piston push rod will extend after the end face of the cigarette filter hits the upper surface of the guide plate 1.691 (when the filter section also needs to be shaped), and the height of the guide plate 1.691 is adjusted through the vertical drive device 1.62, and the length of the cigarette in the shaping mechanism mold is adjusted through the piston push rod, thereby achieving the purpose of adjusting the shaping length of the cigarette, and then the shaping mechanism mold is closed to start shaping. When the cigarette is being shaped in the shaping mechanism mold, the horizontal drive device 1.610 will automatically retract to drive the guide plate 1.691 to retract, the blowing hole closes the gas, the piston push rod of each blowing hole retracts, and the height of the guide plate 1.691 is adjusted by the vertical drive device 1.62. At this time, the cigarette is shaped in the shaping mechanism mold, the shaping mechanism mold opens, and the cigarette falls into the receiving mechanism through the cigarette guide groove under the action of its own weight, completing the cigarette shaping, and then proceeding to the next cycle.

[0150] In addition, for the blowing holes on the guide plate 1.691, it can be understood that an airflow providing device connected to the blowing holes is provided in the blowing guide seat 1.69, and a sealed piston push rod is installed inside each blowing hole, and the piston push rod can be freely extended and retracted under the action of the airflow.

[0151] It should be noted here that the piston push rod will only start to move under the following special circumstances: in addition to the shaping of the cigarette segment, the filter rod end of the cigarette also needs to be shaped, including partial shaping of the filter end or full shaping of the filter end, the piston push rod will extend upward and push part or all of the filter end of the cigarette into the shaping mold.

[0152] When the cigarette is undergoing the special-shaped shaping process, when the cigarette falls into the shaping mold of the shaping mechanism, the cigarette shaping length adjustment mechanism can adjust the height of the guide plate through the vertical drive device according to the shaping length requirements of the cigarette, that is, adjust the height of the lower end of the cigarette, to control the length of the cigarette inserted into the shaping mold, so that the shaping mechanism can shape the cigarette to a predetermined length; and after the cigarette shaping is completed, the guide plate is driven backward by the horizontal drive device to release the cigarette from the guide groove of the guide plate to drop to the next process.

[0153] In some possible implementations, such as Fig. 20 As shown, the linear guide mechanism 1.68 comprises a slider and a linear guide rail. The linear guide rail is arranged on the upper surface of the guide bearing plate 1.66, and the slider is arranged on the lower surface of the first connecting portion S1.

[0154] like Fig.21As shown, the cigarette receiving mechanism of this embodiment includes a supporting base plate B and a U-shaped transmission timing belt assembly 1.71, a material drop guide assembly 1.72, a visual detection assembly 1.73, and a material removal and discharge assembly 1.74 arranged on the supporting base plate B.

[0155] The drop guide assembly 1.72 is located directly above one side of the U-shaped transmission synchronous belt assembly 1.71 to guide the cigarettes through the drop guide assembly 1.72 into the U-shaped transmission synchronous belt assembly 1.71.

[0156] The visual inspection component 1.73 is arranged upstream of the output side of the U-shaped transmission synchronous belt component 1.71, and is used to detect whether the cigarettes in the U-shaped transmission synchronous belt component 1.71 are qualified.

[0157] The rejecting and discharging component 1.74 is arranged downstream of the output side of the U-shaped transmission synchronous belt component 1.71, and is used to reject unqualified cigarettes and output qualified cigarettes according to the inspection results of the visual inspection component 1.73 on the cigarettes.

[0158] The cigarette receiving mechanism provided in the embodiment has a drop guide assembly located below the cigarette shaping length adjustment mechanism. After the cigarette is shaped, the cigarette falls into the U-shaped transmission timing belt assembly through the drop guide assembly, and is inspected for quality by a visual inspection assembly upstream of the output side. After the cigarette moves to the rejection and discharging assembly on the output side, unqualified cigarettes are rejected and qualified cigarettes are output based on the inspection results of the visual inspection assembly.

[0159] The following is a further description of the U-shaped transmission timing belt assembly 1.71 provided in the embodiment of the present application.

[0160] like Fig. 22 As shown, the U-shaped transmission synchronous belt assembly 1.71 includes: a U-shaped transport block pallet 1.711 located above the supporting base plate B, a falling smoke transport block 1.712, two active synchronous pulleys 1.713, two first tensioning synchronous idler pulleys 1.714, an annular synchronous belt 1.715, and multiple second tensioning synchronous idler pulleys 1.716.

[0161] like Fig. 22 As shown, the lower part of the U-shaped transport block support plate 1.711 is suspended on the support bottom plate B by multiple pillars, and multiple falling smoke transport blocks 1.712 are evenly dispersed and arranged on the U-shaped transport block support plate 1.711. A first tensioning synchronous idler wheel 1.714 is respectively arranged at a group of diagonal angles inside the U-shaped transport block support plate 1.711, and a driving synchronous belt wheel 1.713 is respectively arranged at another group of diagonal angles.

[0162] The annular synchronous belt 1.715 is tightly sleeved on the outer sides of the two active synchronous pulleys 1.713 and the two first tensioning synchronous idler wheels 1.714, and the outer side of the annular synchronous belt 1.715 does not contact the inner side of the U-shaped transport block pallet 1.711. Figure 2 4 of them) are arranged on the inner side of the annular synchronous belt 1.715, corresponding to the position of the rejecting and discharging component 1.74.

[0163] In addition, if Fig.23 As shown, the U-shaped transmission synchronous belt assembly 1.71 also includes a transmission belt 1.717 located below the supporting base plate B, two transmission wheels 1.718, two tensioning wheels 1.719, and a driving device 1.7110.

[0164] The two transmission wheels 1.718 are respectively connected to the rotating shafts of the two active synchronous pulleys 1.713 located above the supporting base plate B. That is to say, the transmission wheel 1.718 located below the supporting base plate B rotates synchronously with the active synchronous pulley 1.713 located above the supporting base plate B.

[0165] In addition, the transmission belt 1.717 is tightly sleeved on the outside of the output shaft of the two transmission wheels 1.718 and the driving device 1.7110 (for example, it can be a servo motor); two tensioning wheels 1.719 are located on both sides of the transmission belt 1.717 in contact with the output shaft of the driving device 1.7110 to tension the transmission belt 1.717.

[0166] The U-shaped transmission synchronous belt assembly drives the transmission wheel to rotate through the driving device, and the transmission wheel drives the active synchronous belt pulley located above the supporting bottom plate, and the active synchronous belt pulley drives the annular synchronous belt to rotate. The falling cigarette transport block is installed on the outer surface of the annular synchronous belt and slides on the U-shaped transport block support plate, so that the cigarettes located in the falling cigarette transport block move toward the downstream visual inspection component and the rejection and discharge component.

[0167] It should be noted that the working process of the U-shaped transmission synchronous belt assembly provided in the embodiment of the present application is divided into three beats: the first beat stops at the blanking guide assembly 1.72 to wait for the blanking to be completed, the second beat transports the cigarettes at a uniform speed through the visual inspection assembly 1.73 to complete the inspection, the third beat stops at the discharging and rejection assembly 1.74 to wait for the discharging and rejection to be completed, and then returns to the first beat and repeats the cycle.

[0168] The blanking guide assembly 1.72 provided in the embodiment of the present application is further described below.

[0169] like Fig.24 and Fig.25 ( Fig.24As shown in the cross-sectional schematic diagram along the AA' position, the blanking guide assembly 1.72 includes: a blanking guide seat 1.721, a buffer bracket 1.722, a bracket telescopic cylinder 1.723, a linear guide rail 1.724, a guide seat opening and closing cylinder 1.725, a falling cigarette handling block positioning plate 1.726, a blanking guide seat fixing block 1.727, a guide support plate 1.728, a fiber optic sensor 1.729, and a limit block 1.7210.

[0170] like Fig.24 and Fig.25 As shown, the blanking guide seat 1.721 includes a first blanking guide plate (also known as a front blanking guide plate) 1.7211 and a second blanking guide plate 1.7212 (also known as a rear blanking guide plate) matched, wherein the first blanking guide plate 1.7211 is provided with a first half guide groove on the side facing the second blanking guide plate 1.7212, and the second blanking guide plate 1.7212 is provided with a second half guide groove on the side facing the first blanking guide plate 1.7211; the first half guide groove and the second half guide groove are matched to form a cigarette guide hole.

[0171] In some possible implementations, the cigarette guide hole of the drop guide seat 1.721 can be set as a conical surface to guide the cigarettes dropped from the previous process into the cigarette drop transport block 1.712 of the U-shaped transmission timing belt assembly 1.71.

[0172] The buffer bracket 1.722 extends from the position between the blanking guide seat 1.721 and the U-shaped transmission synchronous belt assembly 1.71 to the inner side of the blanking guide seat 1.721. A cylinder mounting plate M is fixedly provided on the inner side of the blanking guide seat 1.721, and the bracket telescopic cylinder 1.723 is provided on the cylinder mounting plate M, and the end of the buffer bracket 1.722 is connected to the bracket telescopic cylinder 1.723.

[0173] The buffer bracket 1.722 can be a sheet metal part with a soft buffer pad attached to the surface to absorb the kinetic energy of the falling cigarette and prevent the cigarette from shrinking. The bracket telescopic cylinder 1.723 can extend and retract the buffer bracket 1.722 forward and backward to release the falling cigarette.

[0174] like Fig.24 As shown, the optical fiber sensor 1.729 is arranged at the bottom of the blanking guide seat 1.721, corresponding to the position of the cigarette falling transport block 1.712, so as to determine whether there is a cigarette in the cigarette guide hole of the blanking guide seat 1.721.

[0175] As shown in FIG25, the smoke transport block positioning plate 1.726 is located below the buffer bracket 1.722, and the smoke transport block positioning plate 1.726 includes a front positioning plate 1.7261 and a rear positioning plate 1.7262, so as to position the smoke transport block 1.712 through the front positioning plate 1.7261 and the rear positioning plate 1.7262.

[0176] The cigarette falling transport block positioning plate 1.726 can accurately position the cigarette falling transport block 1.712 in the U-shaped transmission synchronous belt assembly 1.71 to ensure that the cigarettes fall smoothly.

[0177] like Fig.24 and Fig.25 As shown, the guide support plate 1.728 is located below the smoke falling transport block positioning plate 1.726, and the guide support plate 1.728 includes a front support plate 1.7281 and a rear support plate 1.7282; the front support plate 1.7281 and the rear support plate 1.7282 are connected to the support base plate B through a linear guide rail 1.724.

[0178] In addition, if Fig.25 As shown, the first blanking guide plate 1.7211 and the second blanking guide plate 1.7212 are fixed on the front support plate 1.7281 and the rear support plate 1.7282 respectively through the first support column T1, the second support column T2 and the blanking guide seat fixing block 1.727.

[0179] The cylinder body 1.7251 of the guide seat opening and closing cylinder 1.725 is fixedly connected to the rear support plate 1.7282, and the pulling head 1.7252 of the guide seat opening and closing cylinder 1.725 is fixedly connected to the front support plate 1.7281; thereby, the front support plate 1.7281 and the rear support plate 1.7282 are reversely driven by the guide seat opening and closing cylinder 1.725, thereby driving the opening and closing of the first blanking guide plate 1.7211 and the second blanking guide plate 1.7212.

[0180] After all cigarettes have fallen into the cigarette dropping and transporting block 1.712 in the U-shaped transmission synchronous belt assembly 1.71, the guide seat opening and closing cylinder 1.725 opens the first drop guide plate 1.7211 and the second drop guide plate 1.7212 to allow the cigarettes to be output.

[0181] In addition, if Fig.25 As shown, limit blocks fixed on the support base plate B are provided on the front side, rear side and middle part of the guide seat opening and closing cylinder 1.725 to limit the movement displacement of the front support plate 1.7281 driven by the pull head 1.7252 of the guide seat opening and closing cylinder 1.725, ensuring that both the opening and closing states of the cylinder are in the required positions.

[0182] The working process of the blanking guide assembly is roughly as follows: the blanking guide seat is closed, the cigarette falls from the guide hole of the blowing guide seat of the shaping length adjustment assembly to the guide hole of the blanking guide seat of the blanking guide assembly, the buffer bracket extends to absorb the kinetic energy of the falling cigarette, the buffer bracket is retracted, the cigarette falls into the cigarette falling transport block of the U-shaped transmission synchronous belt assembly, the blanking guide seat is opened, and the cigarette is output.

[0183] The following is a further description of the visual detection component 1.73 provided in the embodiment of the present application.

[0184] like Fig.26 As shown, the visual inspection component 1.73 includes: a top surface inspection camera 1.731 fixed on the supporting base plate B, four side inspection cameras 1.732, and a light source 1.733.

[0185] The top surface detection camera 1.731 is arranged on the inner side of the blanking guide assembly 1.72, and the height of the top surface detection camera 1.731 is higher than the height of the blanking guide assembly 1.72.

[0186] Among the four side detection cameras 1.732, two are located on the inner side of the U-shaped transmission timing belt assembly 1.71, and two are located on the outer side of the U-shaped transmission timing belt assembly 1.71; and the photographing sides of the four side detection cameras 1.732 are facing the smoke transport block 1.712 from four opposite directions; the light source 1.733 is set in the middle area of ​​the four side detection cameras 1.732.

[0187] When cigarettes are being transported by the U-shaped synchronous belt assembly 1.71, the visual inspection assembly 1.73 uses a top surface inspection camera 1.731 and four side surface inspection cameras 1.732 to take high-speed continuous photos of the four side surfaces and the top end surface of each cigarette to inspect the molding quality of the cigarettes, and transmits the position information of defective products to the rejection and discharge assembly 1.74.

[0188] The following is a further description of the rejecting and discharging component 1.74 provided in the embodiment of the present application.

[0189] The rejecting and discharging component includes a qualified product output component and a failed product rejecting component.

[0190] like Fig. 27 As shown, the qualified product output assembly includes: a rotary cylinder 1.741, a flap spindle 1.742, a flap 1.743, a smoke falling guide block support plate 1.744, an L-shaped discharge guide groove plate 1.745, a discharge drawer plate 1.746, a cylinder 1.747, a linear bearing 1.748, a linear optical axis 1.749, and a bearing seat 1.7410;

[0191] The flap spindle 1.742 is located outside the smoke-falling handling block 1.712 on the output side of the U-shaped transmission synchronous belt assembly 1.71, and both ends of the flap spindle 1.742 are fixed to the supporting base plate B through bearing mounting seats 1.7410. The rotary cylinder 1.741 is arranged at the end of the flap spindle 1.742.

[0192] like Fig.28As shown, the flap 1.743 is fixed on the upper side of the flap main shaft 1.742, and the flap 1.743 extends to the bottom of the smoke falling transport block 1.712; a plurality of L-shaped discharge guide groove plates 1.745 are arranged in parallel below the flap 1.743, and the vertical extension parts of two adjacent L-shaped discharge guide groove plates 1.745 form a discharge guide groove at the position corresponding to each smoke falling transport block, and the discharge drawer plate 1.746 is arranged below the horizontal extension part of the L-shaped discharge guide groove plate 1.745.

[0193] The four linear optical axes 1.749 are respectively connected to the lateral extensions of the leftmost and rightmost L-shaped discharge guide groove plates 1.745, and linear bearings 1.748 are respectively installed at both ends of the linear optical axes 1.749. The cylinder 1.747 is connected between the two linear bearings 1.748 on the same side, and the two cylinders 1.747 are connected to the outer end faces of the outer L-shaped discharge guide groove plates 1.745.

[0194] like Fig.28 As shown, the reject component includes: a reject solenoid valve island 1.7411, an L-shaped reject flap 1.7412, a rotating shaft 1.7413, a cylinder support 1.7414, a reject cylinder 1.7415, and a cylinder mounting plate 1.7416.

[0195] refer to Fig. 27 and Fig.28 The vertical extension of the L-shaped reject flap 1.7412 is located in the discharge guide groove, and the vertical extension of the L-shaped reject flap 1.7412 is parallel to the vertical extension of the L-shaped discharge guide groove plate 1.745; the lateral extension of the L-shaped reject flap 1.7412 is opposite to the extension direction of the lateral extension of the L-shaped discharge guide groove plate 1.745.

[0196] The rotating shaft passes through all the L-shaped reject flaps 1.7412 and the L-shaped discharge guide groove plate 1.745 at their corners; a cylinder support 1.7414 is provided on the outer side of the vertical extension portion of the L-shaped reject flap 1.7412, and the reject cylinder 1.7415 is located directly below the cylinder support 1.7414, and the telescopic shaft of the reject cylinder 1.7415 is connected to the cylinder support 1.7414 through a thread, and the cylinder body of the reject cylinder 1.7415 is mounted on the cylinder mounting plate 1.7416 through a hinge rotating shaft.

[0197] The reject solenoid valve island 1.7411 is fixed under the supporting base plate B. For example, the reject solenoid valve island 1.7411 can be fixed under the supporting base plate B by screws, but it is not limited to this; the reject valve island 1.7411 includes multiple groups of solenoid valves (for example, 30 groups) corresponding to each reject cylinder 1.7415, and the two air pipe joints of each group of solenoid valves are connected to the two air pipe joints of the corresponding reject cylinder 1.7415 through air pipes.

[0198] Specifically, when the cigarettes are transported by the U-shaped transmission synchronous belt assembly 1.71, are inspected by the visual inspection assembly 1.73, and arrive at the rejection and discharge assembly 1.74, the control system PLC will open the solenoid valve corresponding to the unqualified cigarette channel according to the inspection result of the visual inspection assembly 1.73, thereby controlling the corresponding rejection cylinder 1.7415, driving the L-shaped rejection flip to flip counterclockwise. At the same time, the control system PLC will also power off and close the solenoid valve corresponding to the qualified cigarette channel according to the inspection result of the visual inspection assembly, thereby controlling the corresponding rejection cylinder retractor 1.7415 to retract or maintain a retracted state (the rejection cylinder in the previous process may be in an extended or retracted state), driving the L-shaped rejection flap 1.7412 to flip clockwise or maintain the current state.

[0199] It should be noted that before the cigarette discharge is completed, the rejection solenoid valve island 1.7411 and the L-shaped rejection flap 1.7412 enter the preparatory working state. At this time, the rotary cylinder 1.741 in the qualified product output component rotates, driving the flap 1.743 on the flip spindle 1.742 to flip from horizontal to vertical. The cigarettes pass through the unqualified rejection component under the action of gravity and the guidance of the L-shaped discharge guide plate 1.745, thereby automatically completing the rejection of unqualified products and conveying them to the unqualified product output belt, and the output of qualified products and conveying them to the cigarette conveying and loading platform.

[0200] As an implementation method, all key material processes in this embodiment are equipped with existing detection sensors. The controller collects information from each sensor to determine the process parameters required for each process, and then controls the corresponding actuators to coordinate the connection of all processes to ensure seamless connection of materials between processes.

[0201] In this embodiment, in the visual inspection part, the criteria for judging whether the special-shaped cigarettes are qualified or not are: ① the difference between the longest side and the shortest side of the rectangular end face of the special-shaped cigarette is less than 1mm; ② the deviation value of any angle of the rectangle is within ±10°. Products that meet both of the above conditions will be judged as qualified products by the visual inspection system.

[0202] The visual inspection system is an existing technology, and the relevant parameters can be set according to needs.

[0203] According to user needs and operating requirements, the software functions are customized and developed according to existing technologies, so that the system can display fault alarms and operating status in real time, can perform single-action operation and automatic operation control, and automatically record and store production information and fault alarm information for easy query. The system can set parameters such as: forming length, molding pressure, molding time, molding compression, production speed, etc. At the same time, operators can also customize the process parameters of some processes (molding length, molding time, molding pressure and other parameters) according to their own production habits. The system will automatically adapt to the remaining parameters and make corresponding adjustments. The front part of the molding machine is an automatic special-shaped cigarette molding platform, which can automatically complete the molding production of special-shaped cigarettes such as "round sky and square ground" and "full square cigarettes", and automatically remove unqualified products and output qualified products to the special-shaped cigarette conveying and loading platform. The rear part of the molding machine is a special-shaped cigarette conveying and loading platform, which transports and collects the special-shaped cigarettes conveyed from the special-shaped cigarette molding platform, and finally loads them into trays or boxes manually.

[0204] like Fig.29 As shown, the method for forming special-shaped cigarettes of this embodiment is carried out as follows: after the cigarette warehouse is manually loaded into the cigarette warehouse sorting mechanism 1.2, the cigarettes are automatically dropped and transported for sorting, and then loaded on the cigarette loading mechanism 1.1. The shaping length adjustment mechanism 1.6 adjusts the position to control the shaping length, and then the blanking mechanism 1.3 is turned over to drop the cigarettes. The cigarettes are returned to the top during the mold forming process and finally enter the receiving mechanism 1.7. The receiving mechanism 1.7 sets the qualified standard through the existing visual system to determine whether the special-shaped cigarettes are qualified, separate the qualified products from the unqualified products, and the qualified products enter the special-shaped cigarette conveying and loading platform 3 and are output through the belt. The unqualified products are rejected and fall into the defective product collection box 5 through the unqualified product output belt 1.8, and are manually cleaned at regular intervals. After the controller updates the production data, production continues.

[0205] One of the technical parameters of this embodiment is shown in the following table:

[0206] Table 1

[0207]

[0208]

[0209] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic special-shaped cigarette forming device, characterized in that: It includes a cigarette loading mechanism, a cigarette storage material arrangement mechanism, a flipping and blanking mechanism, a tobacco shred returning mechanism, a mold closing and forming mechanism, a shaping length adjustment mechanism and a material receiving mechanism. The cigarettes enter the cigarette storage material arrangement mechanism, and the materials are automatically transported for sorting and sorting. The cigarettes are loaded on the cigarette loading mechanism. The shaping length adjustment mechanism adjusts the position to control the shaping length, and then the flipping and blanking mechanism is used to blank the materials. The cigarettes are returned to the top during the mold closing and forming process, and finally enter the material receiving mechanism, which separates qualified products from unqualified products. The automatic cigarette mold forming mechanism comprises a trough body, a front pressing platen, a rear pressing platen, a forming mold unit, a left pressing die guide assembly, a right pressing die guide assembly, a front pressing die guide assembly, and a rear pressing die guide assembly arranged in the trough body; the front pressing platen comprises an upper front pressing platen and a lower front pressing platen, and the rear pressing platen comprises an upper rear pressing platen and a lower rear pressing platen; The molding die unit comprises: a first molding die assembly and a second molding die assembly which are arranged opposite to each other, and a third molding die assembly and a fourth molding die assembly which are arranged opposite to each other; the front pressing plate and the rear pressing plate are arranged opposite to each other, and a plurality of molding die units are arranged between the front pressing plate and the rear pressing plate along the length direction; the first molding die assembly and the second molding die assembly are respectively fixed to the upper front pressing plate and the upper rear pressing plate, and the third molding die assembly and the fourth molding die assembly are respectively fixed to the lower front pressing plate and the lower rear pressing plate; the left pressing die guide assembly is connected to the left ends of the upper front pressing plate and the upper rear pressing plate, and the The right die guide assembly is connected to the right ends of the lower front die plate and the lower rear die plate; the front die guide assembly is connected to the front side of the front die plate, and the rear die guide assembly is connected to the rear side of the rear die plate; the automatic cigarette mold forming mechanism also includes: a left drive device, a right drive device, a front drive device, and a rear drive device; the left drive device is connected to the left die guide assembly through a synchronous wheel and a synchronous belt, the right drive device is connected to the right die guide assembly through a synchronous wheel and a synchronous belt, the front drive device is connected to the front die guide assembly through a synchronous wheel and a synchronous belt, and the rear drive device is connected to the rear die guide assembly through a synchronous wheel and a synchronous belt; The tobacco returning mechanism includes a lifting drive device, an upper fixed plate, a lifting plate, a plurality of returning assemblies, a linear optical axis, a linear bearing, a guide shaft support, a screw assembly, and a limit column; the screw assembly includes a screw and a nut; the two ends of the lifting plate are respectively connected to the linear optical axis through the linear bearing, and the multiple returning assemblies are fixed to the lower surface of the lifting plate; the upper fixed plate is located directly above the lifting plate, and the two ends of the upper fixed plate are respectively connected to the end of the linear optical axis through the guide shaft support; the lifting drive device is fixed to the upper surface of the upper fixed plate, and the driving end of the lifting drive device is connected to the lifting plate through the screw assembly; the screw is connected to the driving end of the lifting drive device through a coupling; the nut is connected to the lifting plate through a screw; the limit column is located above the lifting plate and fixed to the lower surface of the fixed plate.

2. The automatic special-shaped cigarette forming device according to claim 1, characterized in that: The cigarette loading mechanism includes a base plate and a plurality of cigarette push rods arranged in parallel on the base plate, a linear drive device, a linear guide mechanism, and a push rod fixing seat; the proximal ends of the plurality of cigarette push rods arranged in parallel are fixed on the push rod fixing seat, and the push rod fixing seat is connected to the base plate through the linear guide mechanism; the push rod fixing seat is connected to the linear drive device.

3. The automatic special-shaped cigarette forming device according to claim 1, characterized in that: The material organization mechanism of the cigarette warehouse includes a material chamber, a material guide trough is arranged below the material chamber, a roller sorting mechanism with a plurality of rollers is arranged at the bottom of the material guide trough, a cigarette dropping channel is arranged correspondingly below the plurality of rollers, a diamond-shaped guide device is arranged in the middle of the material guide trough, circular guide devices are arranged on both sides, a draw plate is arranged at the bottom of the material chamber, the cigarettes in the material chamber fall into the warehouse downward, the diamond-shaped guide device swings left and right to guide the cigarettes, the cigarette aligning mechanism aligns the cigarettes so that the cigarettes are evenly distributed and the ends are aligned, and the weight of the materials in the silo will not all be pressed on the rollers, the roller sorting assembly rotates forward and reversely to sort, so that the cigarettes continuously enter the cigarette dropping channel; an air suction trough is arranged at the head along the movement direction of the cigarettes below the cigarette dropping channel, the air suction trough is connected with the front end of the waste suction air duct through a pipe clamp, and the rear end of the waste suction air duct is connected with the waste suction fan through a pipe clamp.

4. The automatic special-shaped cigarette forming device according to claim 3, characterized in that: The paddle roller sorting mechanism includes a motor, a main shaft connected to the motor output shaft, a paddle roller driving bevel gear being provided on the main shaft, the paddle roller driving bevel gear driving the paddle roller to rotate forward and reversely, the main shaft is fixed to the back plate of the silo through bearing seats at both ends, the paddle roller driving bevel gear is composed of a plastic bevel gear and a metal bevel gear, the plastic bevel gear is fixed on the main shaft, the metal bevel gear is fixed to the rear end of the paddle roller, the metal bevel gear is arranged below the plastic bevel gear and is driven to rotate by the plastic bevel gear, the paddle roller is fixed to the back plate of the silo through the bearing seat, the front end of the paddle roller passes through the back plate of the silo and extends into the silo, when the motor rotates forward and reverse according to the system instruction, the main shaft rotates forward and reverse, the paddle roller rotates forward and reverse under the transmission of the paddle roller driving bevel gear, the paddle roller drives the cigarette to move left and right in the silo by friction, when it moves to the top of the cigarette falling channel, the cigarette falls into the cigarette falling channel under the action of the pressure formed by the cigarette's own gravity and the gravity of the cigarette above.

5. The automatic special-shaped cigarette forming device according to claim 3, characterized in that: The diamond guide device consists of a cigarette storehouse guide assembly swing cylinder, a swing arm and a four-sided diamond block. The cigarette storehouse guide assembly swing cylinder is fixed on the back plate of the silo, and the telescopic shaft of the swing cylinder is connected to the swing arm through a thread. The output rotating shaft of the swing arm is eccentrically connected to the four-sided diamond block. The cigarette storehouse guide assembly swing cylinder is telescopic and drives the four-sided diamond block to swing freely left and right through the swing arm; the circular guide device consists of a guide cylinder and an eccentric rotating shaft installed at the bottom of the guide cylinder. The eccentric rotating shaft is fixed to the back plate of the silo through the external thread at the end of the shaft. When the silo is full of cigarettes, the diamond guide device swings left and right at a small angle under the telescopic action of the swing cylinder, thereby driving the cigarettes in the silo to swing left and right at a small angle. The circular guide device swings freely left and right under the squeezing action of the cigarettes and the deadweight of the guide cylinder.

6. The automatic special-shaped cigarette forming device according to claim 1, characterized in that: The cigarette flipping and dropping mechanism comprises two flipping supports, and a rotating main shaft arranged between the two flipping supports and connected to the two flipping supports; one end of the rotating main shaft is connected to a rotating driving device; the rotating driving device is fixed on the flipping supports; The rotating main shaft is fixedly provided with a plurality of cigarette branch tubes in parallel in a direction perpendicular to its axis; the cigarette flipping and dropping mechanism also includes: a linear drive device, a linear guide mechanism, and a guide support; the linear guide mechanism is fixed below the flip support, and the linear drive device is fixed above the flip support; the extension direction of the linear guide mechanism is perpendicular to the axis direction of the rotating main shaft; the guide support is fixed between the two flip supports and is arranged parallel to the rotating main shaft, and the guide support is provided with cigarette guide grooves corresponding one to one to the cigarette branch tubes.

7. The automatic special-shaped cigarette forming device according to claim 1, characterized in that: The cigarette shaping length adjustment mechanism comprises a bracket with an opening structure at the top, a vertical driving device, a screw assembly, an upper fixing plate, a lower guide fixing plate, a guide bearing plate, a linear optical axis, an optical axis clamping sleeve, a linear guide mechanism, a blowing guide seat, and a horizontal driving device; the upper fixing plate is located above the opening of the bracket, and the upper fixing plate is fixedly connected to the bracket; the lower guide fixing plate is located in the opening of the bracket; the guide bearing plate is located above the upper fixing plate; the vertical driving device is fixed to the bottom of the bracket, and the driving end of the vertical driving device is connected to the end of the screw through a synchronous wheel and a synchronous belt, and the screw is connected to the lower guide fixing plate through a nut; The two ends of the lower guide fixing plate are respectively connected to one end of the linear optical axis through the optical axis clamping sleeve, the other end of the linear optical axis is connected to the lower surface of the guide bearing plate, and the middle part of the linear optical axis is connected to the upper fixing plate through a linear bearing; the blowing guide seat comprises a guide plate and a mounting seat; the guide plate is mounted on the mounting seat, the mounting seat is mounted on the guide bearing plate through the linear guide mechanism, and the driving end of the horizontal driving device is connected to the mounting seat; the upper surface of the guide plate is provided with a plurality of cigarette guide grooves and blowing holes, and each of the blowing holes is equipped with a sealed piston push rod.

8. The automatic special-shaped cigarette forming device according to claim 1, characterized in that: The cigarette receiving mechanism includes a supporting base plate and a U-shaped transmission synchronous belt assembly, a material dropping guide assembly, a visual inspection assembly, and a rejection and discharging assembly arranged on the supporting base plate; the material dropping guide assembly is located directly above one side of the U-shaped transmission synchronous belt assembly to guide the cigarettes into the U-shaped transmission synchronous belt assembly through the material dropping guide assembly; the visual inspection assembly is arranged upstream of the output side of the U-shaped transmission synchronous belt assembly, and is used to detect whether the cigarettes in the U-shaped transmission synchronous belt assembly are qualified; the rejection and discharging assembly is arranged downstream of the output side of the U-shaped transmission synchronous belt assembly, and is used to reject unqualified cigarettes and output qualified cigarettes according to the detection results of the visual inspection assembly on the cigarettes.

Images