Online flavoring and casing system for cut tobacco on cigarette making machine

Abstract

This utility model discloses an online flavoring and additive system for cigarette making machines, including a flavoring tank, a metering pump, an atomizing nozzle, and a compressed air pipeline. The flavoring tank has a discharge port at its bottom, which is connected to the inlet of the metering pump via a liquid inlet pipe. The outlet of the metering pump is connected to the liquid inlet of the atomizing nozzle via a spray pipe, and the outlet of the compressed air pipeline is connected to the air inlet of the atomizing nozzle. This utility model has a scientific principle, simple structure, and can be easily installed on a cigarette making machine. The metering pump evenly draws in the flavoring and fragrance solution and supplies it to the atomizing nozzle. Simultaneously, compressed air is also injected into the atomizing nozzle. The compressed air atomizes the flavoring and fragrance solution and sprays it onto the tobacco on the cigarette making machine's suction belt, achieving online flavoring of the tobacco. It has the advantages of long-lasting aroma, good flavoring uniformity, and no impact on cigarette production quality.

Description

Technical Field

[0001] This utility model belongs to the field of cigarette industry technology, specifically relating to an online flavoring and additive system for tobacco shreds on a cigarette rolling machine. Background Technology

[0002] Currently, flavoring and additives are mainly done in the tobacco processing workshop. For personalized flavoring and additives applied in small batches, the usual methods are spraying flavorings onto cigarette paper (e.g., CN110258180A discloses a device for online quantitative spraying of solid flavorings onto cigarette paper) or placing flavor capsules in the filter. These two methods have the following drawbacks: 1) the flavorings sprayed onto the cigarette paper have a short retention time; 2) because there is no secondary flavoring and additive application to the tobacco, the aroma uniformity after burning is poor; 3) placing flavor capsules in the filter can result in defective cigarettes due to capsule breakage or misalignment during production. Therefore, adding secondary flavorings and additives to the tobacco on the cigarette rolling machine to meet personalized needs would overcome the above three drawbacks. Utility Model Content

[0003] In order to solve the above-mentioned technical problems in the prior art, this utility model provides an online aroma-adding system for tobacco shreds on a cigarette machine that has a long aroma retention time, maintains good aroma uniformity during cigarette combustion, and improves the cigarette qualification rate.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an online flavoring and additive system for tobacco shreds on a cigarette machine, including a flavoring tank, a metering pump, an atomizing nozzle, and a compressed air pipeline. The bottom of the flavoring tank is provided with a discharge port, which is connected to the inlet of the metering pump through a liquid inlet pipe. The outlet of the metering pump is connected to the liquid inlet of the atomizing nozzle through a spray pipe, and the outlet of the compressed air pipeline is connected to the air inlet of the atomizing nozzle.

[0005] The atomizing nozzle includes an upper connector, an outer cylinder, an inner core, and a lower nozzle.

[0006] The outer cylinder's centerline is set vertically, and an upper annular boss is integrally provided in the middle of the inner circle of the outer cylinder. Several ventilation holes, all of which are open from top to bottom, are opened in the upper annular boss. All ventilation holes are arranged in a circular array along the centerline of the outer cylinder.

[0007] The lower part of the upper connector extends into and is threaded into the upper port of the outer cylinder. The upper end face of the upper connector is provided with a liquid inlet connected to the outlet of the spray pipe and an air inlet connected to the outlet of the compressed air pipeline. The upper connector has a vertical upper liquid inlet hole with the upper end connected to the liquid inlet hole. The center line of the upper liquid inlet hole and the center line of the liquid inlet hole form an obtuse angle. The upper connector has an eccentric upper air inlet hole with the upper end connected to the air inlet hole. The center line of the upper air inlet hole is parallel to the center line of the upper liquid inlet hole and coincides with the center line of the air inlet hole.

[0008] The lower nozzle extends into and is threaded into the lower port of the outer cylinder. The lower end face of the lower nozzle is inclined. The lower nozzle has a multi-stage axial stepped hole that is open to the bottom and is thicker at the top and thinner at the bottom. The lower end of the multi-stage axial stepped hole is a fine spray hole. The lower end face of the lower nozzle has an arc groove around the fine spray hole.

[0009] The inner core is coaxially installed inside the outer cylinder. The upper outer circle of the inner core is fitted inside the upper annular boss, and the lower part of the inner core is provided with a lower annular boss. The lower annular boss has a gas flow channel that is open from top to bottom. The lower annular boss is fitted into the uppermost hole of the multi-stage axial stepped hole. The inner core has a lower liquid inlet hole that is open from top to bottom. The lower end face of the upper connector is pressed and fitted with the upper end face of the inner core. The upper end of the lower liquid inlet hole is connected to the lower end of the upper liquid inlet hole. The lower end face of the lower annular boss is pressed and fitted with the uppermost annular step of the multi-stage axial stepped hole. The lower outer circle of the inner core is a conical surface structure with a thicker upper part and a thinner lower part. The conical surface structure at the lower end of the inner core has a conical gap with the inner wall of the multi-stage axial stepped hole. The lower port of the lower liquid inlet hole corresponds to the upper port of the fine spray hole and has a gap. The diameter of the lower liquid inlet hole is smaller than the diameter of the fine spray hole.

[0010] A first sealing ring is provided between the inner circle of the upper connector and the inner circle of the upper port of the outer cylinder; a second sealing ring is provided between the lower end face of the upper connector and the upper end face of the inner core; a third sealing ring is provided between the outer circle of the inner core and the inner circle of the upper annular boss; and a fourth sealing ring is provided between the outer circle of the lower nozzle and the inner circle of the lower port of the outer cylinder.

[0011] The spice barrel is equipped with a feeding pipe on the upper side, and a feeding valve is installed on the feeding pipe. The discharge port at the bottom of the discharge cylinder is connected to a discharge pipe, and a discharge valve is installed on the discharge pipe. A liquid inlet valve is installed on the liquid inlet pipe, and a pressure regulating valve is installed on the compressed air pipeline.

[0012] The metering pump includes a metering pump body, a coupling, a reducer, and a servo motor. The servo motor has a base at the bottom of the metering pump body, and the servo motor is connected to the power input shaft of the metering pump body in sequence through the reducer and the coupling.

[0013] Using the above technical solution, the principle of flavoring and adding ingredients in this utility model is as follows: before the tobacco leaves the suction belt and enters the cigarette gun on the cigarette machine, the flavoring and fragrance are accurately atomized and evenly sprayed into the tobacco. The amount of flavoring and fragrance applied is driven by the servo motor to the metering pump body, so that the rotation speed of the metering pump body is related to the speed of the suction belt of the cigarette machine, ensuring that the amount of flavoring and adding ingredients is uniform when the speed of the cigarette machine fluctuates.

[0014] The atomizing nozzle employs a binary fluid structure. Under the suction of the metering pump, the flavoring solution in the flavoring tank is sequentially supplied to the fine nozzle orifice of the lower nozzle through the inlet pipe, spray pipe, inlet port, upper inlet hole, and lower inlet hole. Simultaneously, compressed air is injected through the compressed air pipeline sequentially through the air inlet, upper air inlet hole, vent hole, gas flow channel, and conical gap to the fine nozzle orifice. The compressed air atomizes the flavoring solution and sprays it onto the tobacco through the fine nozzle orifice. The pressure of the compressed air is controlled by a pressure regulating valve and is related to the operating speed of the cigarette machine to ensure the stability of the atomization effect.

[0015] The atomizing nozzle is assembled from four parts: an upper connector, an outer cylinder, an inner core, and a lower nozzle. The upper connector and the lower nozzle are threaded into the upper and lower ports of the outer cylinder, respectively. The inner core is coaxially located inside the outer cylinder, and the upper end face of the inner core is pressed against the lower end face of the upper connector. The lower nozzle has a multi-stage axial stepped hole inside, and the uppermost annular step is pressed against the lower end face of the lower annular boss to limit the axial position of the inner core and ensure that the conical surface structure of the lower outer circle of the inner core and the inner wall of the multi-stage axial stepped hole have a conical gap for compressed air to pass through.

[0016] The spice container is made of sanitary-grade stainless steel to ensure that the spices are not affected by the environment. A discharge pipe is installed at the bottom of the container, and a feeding pipe is installed on the top.

[0017] The metering pump uses a high-precision metering pump body. The amount of fragrance added is adjusted by controlling the speed of the servo motor on the metering pump body. The appropriate model of the metering pump body needs to be selected according to the amount of fragrance added. As needed, a metering pump with a single inlet and a single outlet can be selected, or a metering pump with a single inlet and multiple outlets can be selected, with each outlet corresponding to the inlet of one atomizing nozzle.

[0018] The operating speed signal of the cigarette-making machine can be acquired by the coupler or directly by the communication system and transmitted to the PLC controller of this invention. The PLC controller matches the servo motor speed with the operating speed of the equipment, and the two are interconnected to ensure that the amount of flavoring added remains constant at different operating speeds. At the same time, the compressed air flow and pressure are automatically adjusted by the pressure regulating valve according to the amount of material added to ensure a constant "material-to-air ratio".

[0019] In summary, this utility model has a scientific principle, simple structure, and can be installed on a cigarette rolling machine. The metering pump uniformly draws the flavoring solution and supplies it to the atomizing nozzle. At the same time, compressed air is also injected into the atomizing nozzle. The compressed air atomizes the flavoring solution and sprays it onto the tobacco on the cigarette rolling machine's suction belt, achieving online flavoring of the tobacco. It has the advantages of long-lasting aroma, good flavoring uniformity, and no impact on the quality of cigarette production. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 for Figure 1 Schematic diagram of the structure of a metering pump;

[0022] Figure 3 for Figure 1 A schematic diagram of the external structure of a medium-sized atomizing nozzle;

[0023] Figure 4 for Figure 1 Schematic diagram of the internal structure of the atomizing nozzle;

[0024] Figure 5 for Figure 4 Schematic diagram of the upper and middle connector;

[0025] Figure 6 for Figure 4 Schematic diagram of the structure of the inner and outer cylinders;

[0026] Figure 7 for Figure 6 Top view;

[0027] Figure 8 for Figure 4 A three-dimensional structural diagram of the inner core.

[0028] Figure 9 for Figure 4 Schematic diagram of the inner core

[0029] Figure 10 for Figure 9 Top view;

[0030] Figure 11 for Figure 4 Schematic diagram of the middle and lower nozzle;

[0031] Figure 12 for Figure 4 A three-dimensional structural diagram of the lower nozzle. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] like Figures 1-12As shown, the online flavoring and additive system for tobacco shreds on the cigarette machine includes a flavoring tank 1, a metering pump 2, an atomizing nozzle 3, and a compressed air pipeline 4. The flavoring tank 1 has a discharge port at the bottom, which is connected to the inlet of the metering pump 2 through a liquid inlet pipe 5. The outlet of the metering pump 2 is connected to the liquid inlet of the atomizing nozzle 3 through a spray pipe 6. The outlet of the compressed air pipeline 4 is connected to the air inlet of the atomizing nozzle 3.

[0034] The atomizing nozzle 3 includes an upper connector 7, an outer cylinder 8, an inner core 9, and a lower nozzle 10;

[0035] The center line of the outer cylinder 8 is set vertically, and an upper annular boss 11 is integrally provided in the middle of the inner circle of the outer cylinder 8. Several ventilation holes 12 that are open from top to bottom are opened in the upper annular boss 11. All ventilation holes are arranged in a circumferential array along the center line of the outer cylinder 8.

[0036] The lower part of the upper connector 7 extends into and is threadedly connected to the upper port of the outer cylinder 8. The upper end face of the upper connector 7 is provided with a liquid inlet 13 connected to the outlet of the liquid spray pipe 6 and an air inlet 14 connected to the outlet of the compressed air pipeline 4. The upper connector 7 has a vertically opened upper liquid inlet hole 15 with its upper end connected to the liquid inlet 13. The center line of the upper liquid inlet hole 15 and the center line of the liquid inlet 13 form an obtuse angle. The upper connector 7 has an eccentrically opened upper air inlet hole 16 with its upper end connected to the air inlet 14. The center line of the upper air inlet hole 16 is parallel to the center line of the upper liquid inlet hole 15, and the center line of the upper air inlet hole 16 coincides with the center line of the air inlet 14.

[0037] The lower nozzle 10 extends into and is threadedly connected to the lower port of the outer cylinder 8. The lower end face of the lower nozzle 10 is inclined. The lower nozzle 10 has a multi-stage axial stepped hole 17 that is open to the bottom and is thicker at the top and thinner at the bottom. The lower end of the multi-stage axial stepped hole 17 is a fine spray hole 18. The lower end face of the lower nozzle 10 has an arc groove 19 around the fine spray hole 18.

[0038] The inner core 9 is coaxially installed inside the outer cylinder 8. The upper outer circle of the inner core 9 is fitted inside the upper annular boss 11. The lower part of the inner core 9 is provided with a lower annular boss 20. The lower annular boss 20 has a gas flow channel 21 that is open at both ends. The lower annular boss 20 is fitted into the uppermost hole of the multi-stage axial stepped hole 17. The inner core 9 has a lower liquid inlet hole 22 that is open at both ends. The lower end face of the upper connector 7 is press-fitted with the upper end face of the inner core 9. The upper end of the lower inlet hole 22 is connected to the lower end of the upper liquid inlet hole 15. The lower end face of the lower annular boss 20 is pressed into the uppermost annular step of the multi-stage axial stepped hole 17. The lower outer circle of the inner core 9 is a conical surface structure with a thicker upper part and a thinner lower part. The conical surface structure at the lower end of the inner core 9 has a conical gap 23 with the inner wall of the multi-stage axial stepped hole 17. The lower port of the lower liquid inlet hole 22 corresponds to the upper port of the fine spray hole 18 and has a gap. The diameter of the lower liquid inlet hole 22 is smaller than the diameter of the fine spray hole 18.

[0039] A first sealing ring 24 is provided between the inner circle of the upper connector 7 and the inner circle of the upper port of the outer cylinder 8; a second sealing ring 25 is provided between the lower end face of the upper connector 7 and the upper end face of the inner core 9; a third sealing ring 26 is provided between the outer circle of the inner core 9 and the inner circle of the upper annular boss 11; and a fourth sealing ring 27 is provided between the outer circle of the lower nozzle 10 and the inner circle of the lower port of the outer cylinder 8. The sealing rings serve to seal the interior and exterior of the atomizing nozzle, and also to seal the compressed air passage and liquid passage inside the atomizing nozzle.

[0040] The spice barrel 1 is equipped with a feeding pipe 28 on the upper side, and a feeding valve 29 is provided on the feeding pipe 28. The discharge port at the bottom of the discharge cylinder is connected to a discharge pipe 30, and a discharge valve 31 is provided on the discharge pipe 30. A liquid inlet valve 32 is provided on the liquid inlet pipe 5, and a pressure regulating valve 33 is provided on the compressed air pipeline 4.

[0041] The metering pump 2 includes a metering pump body 34, a coupling 35, a reducer 36, and a servo motor 37. The servo motor 37 is located at the bottom of the metering pump body 34 and has a base 38. The servo motor 37 is connected to the power input shaft of the metering pump body 34 in sequence through the reducer 36 and the coupling 35.

[0042] The principle of flavoring and adding ingredients in this utility model is as follows: before the tobacco leaves the suction belt and enters the cigarette gun on the cigarette machine, the flavoring and fragrance are accurately atomized and evenly sprayed into the tobacco. The amount of flavoring and fragrance applied is driven by the servo motor 37 to drive the metering pump body 34, so that the rotation speed of the metering pump body 34 is related to the speed of the suction belt of the cigarette machine, ensuring that the amount of flavoring and adding ingredients is uniform when the speed of the cigarette machine fluctuates.

[0043] The atomizing nozzle 3 adopts a binary fluid structure. Under the suction of the metering pump 2, the flavoring solution in the flavoring tank 1 is sequentially supplied to the fine spray hole 18 of the lower nozzle 10 through the inlet pipe 5, spray pipe 6, inlet port 13, upper inlet hole 15, and lower inlet hole 22. At the same time, compressed air is injected into the fine spray hole 18 through the compressed air pipeline through the air inlet 14, upper air inlet hole 16, vent hole 12, gas flow channel 21, and conical gap 23. The compressed air atomizes the flavoring solution and sprays it onto the tobacco through the fine spray hole 18. The pressure of the compressed air is controlled by the pressure regulating valve 33 and is related to the operating speed of the cigarette machine to ensure the stability of the atomization effect.

[0044] The atomizing nozzle 3 is assembled from four parts: an upper connector 7, an outer cylinder 8, an inner core 9, and a lower nozzle 10. The upper connector 7 and the lower nozzle 10 are threadedly connected to the upper and lower ports of the outer cylinder 8, respectively. The inner core 9 is coaxially arranged inside the outer cylinder 8. The upper end face of the inner core 9 is pressed against the lower end face of the upper connector 7. The lower nozzle 10 has a multi-stage axial stepped hole 17 inside. The uppermost annular step is pressed against the lower end face of the lower annular boss 20 to limit the axial position of the inner core 9 and ensure that the conical surface structure of the lower outer circle of the inner core 9 and the inner wall of the multi-stage axial stepped hole 17 have a conical gap 23 for compressed air to pass through.

[0045] The spice container 1 is made of sanitary-grade stainless steel to ensure that the spices are not affected by the environment. The spice container 1 is equipped with a discharge pipe 30 at the bottom and a feeding pipe 28 on the upper side.

[0046] The metering pump 2 uses a high-precision metering pump body 34. The amount of fragrance added is adjusted by controlling the speed of the servo motor 37 of the metering pump body 34. The metering pump body 34 needs to be selected according to the amount of fragrance added. As needed, a metering pump 2 with a single inlet and a single outlet can be selected, or a metering pump 2 with a single inlet and multiple outlets can be selected, with each outlet corresponding to the liquid inlet 13 of an atomizing nozzle 3.

[0047] The operating speed signal of the cigarette-making machine can be acquired by the coupler or directly by the communication system and transmitted to the PLC controller of this invention. The PLC controller matches the rotational speed of the servo motor 37 with the operating speed of the equipment, and the two are interconnected to ensure that the amount of flavoring added remains constant at different operating speeds. At the same time, the compressed air flow and pressure are automatically adjusted by the pressure regulating valve 33 according to the amount of material added to ensure a constant "material-to-air ratio". The automatic control of the servo motor 37 by the PLC controller in this invention does not involve new computer programs.

[0048] The metering pump 2 and various valves in this utility model are available on the market, and their specific structure and working principle will not be described in detail here.

[0049] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An online flavoring and additive system for tobacco shreds on a cigarette rolling machine, characterized in that: It includes a spice barrel, a metering pump, an atomizing nozzle, and a compressed air pipeline. The bottom of the spice barrel is equipped with a discharge port, which is connected to the inlet of the metering pump through a liquid inlet pipe. The outlet of the metering pump is connected to the liquid inlet of the atomizing nozzle through a spray pipe, and the outlet of the compressed air pipeline is connected to the air inlet of the atomizing nozzle.

2. The online flavoring and additive system for tobacco shreds on a cigarette machine according to claim 1, characterized in that: The atomizing nozzle includes an upper connector, an outer cylinder, an inner core, and a lower nozzle. The outer cylinder's centerline is set vertically, and an upper annular boss is integrally provided in the middle of the inner circle of the outer cylinder. Several ventilation holes, all of which are open from top to bottom, are opened in the upper annular boss. All ventilation holes are arranged in a circular array along the centerline of the outer cylinder. The lower part of the upper connector extends into and is threaded into the upper port of the outer cylinder. The upper end face of the upper connector is provided with a liquid inlet connected to the outlet of the spray pipe and an air inlet connected to the outlet of the compressed air pipeline. The upper connector has a vertical upper liquid inlet hole with the upper end connected to the liquid inlet hole. The center line of the upper liquid inlet hole and the center line of the liquid inlet hole form an obtuse angle. The upper connector has an eccentric upper air inlet hole with the upper end connected to the air inlet hole. The center line of the upper air inlet hole is parallel to the center line of the upper liquid inlet hole and coincides with the center line of the air inlet hole. The lower nozzle extends into and is threaded into the lower port of the outer cylinder. The lower end face of the lower nozzle is inclined. The lower nozzle has a multi-stage axial stepped hole that is open to the bottom and is thicker at the top and thinner at the bottom. The lower end of the multi-stage axial stepped hole is a fine spray hole. The lower end face of the lower nozzle has an arc groove around the fine spray hole. The inner core is coaxially installed inside the outer cylinder. The upper outer circle of the inner core is fitted inside the upper annular boss, and the lower part of the inner core is provided with a lower annular boss. The lower annular boss has a gas flow channel that is open from top to bottom. The lower annular boss is fitted into the uppermost hole of the multi-stage axial stepped hole. The inner core has a lower liquid inlet hole that is open from top to bottom. The lower end face of the upper connector is pressed and fitted with the upper end face of the inner core. The upper end of the lower liquid inlet hole is connected to the lower end of the upper liquid inlet hole. The lower end face of the lower annular boss is pressed and fitted with the uppermost annular step of the multi-stage axial stepped hole. The lower outer circle of the inner core is a conical surface structure with a thicker upper part and a thinner lower part. The conical surface structure at the lower end of the inner core has a conical gap with the inner wall of the multi-stage axial stepped hole. The lower port of the lower liquid inlet hole corresponds to the upper port of the fine spray hole and has a gap. The diameter of the lower liquid inlet hole is smaller than the diameter of the fine spray hole.

3. The online flavoring and additive system for tobacco shreds on a cigarette machine according to claim 2, characterized in that: A first sealing ring is provided between the inner circle of the upper connector and the inner circle of the upper port of the outer cylinder; a second sealing ring is provided between the lower end face of the upper connector and the upper end face of the inner core; a third sealing ring is provided between the outer circle of the inner core and the inner circle of the upper annular boss; and a fourth sealing ring is provided between the outer circle of the lower nozzle and the inner circle of the lower port of the outer cylinder.

4. The online flavoring and additive system for tobacco shreds on a cigarette machine according to claim 1, characterized in that: The spice barrel is equipped with a feeding pipe on the upper side, and a feeding valve is installed on the feeding pipe. The discharge port at the bottom of the discharge cylinder is connected to a discharge pipe, and a discharge valve is installed on the discharge pipe. A liquid inlet valve is installed on the liquid inlet pipe, and a pressure regulating valve is installed on the compressed air pipeline.

5. The online flavoring and additive system for tobacco shreds on a cigarette machine according to claim 1, characterized in that: The metering pump includes a metering pump body, a coupling, a reducer, and a servo motor. The servo motor has a base at the bottom of the metering pump body, and the servo motor is connected to the power input shaft of the metering pump body in sequence through the reducer and the coupling.

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