Tobacco rod making machine for supplying tobacco to a cigarette maker

Abstract

The utility model discloses a cigarette machine silk supply system suitable for disordered heating cigarette, mainly includes tobacco shred input box, steep angle conveyer belt, the rationing roller and paddle roller who are located respectively at both sides of steep angle conveyer belt, the main metering needle roller, the auxiliary metering needle roller of being located in the material bin below tobacco shred input box, the conveying device of being located at one side of main metering needle roller and the silk recovery roller between main metering needle roller and conveying device, be equipped with negative pressure silk suction channel in conveying device rear end one side, and be equipped with recovery mechanism in conveying device rear end and be located below negative pressure silk suction channel, including second vibrating groove, the silk collection funnel of being located below second vibrating groove one end and the first spiral silk recovery device of being located below silk collection funnel. The utility model combines the characteristics of the sheet tobacco used in heating cigarette, improves the key components of cigarette machine silk supply system, not only avoids the use of winnowing, improves the quality of cigarette product, and replaces the stem removing and impurity removing device for recovery tobacco shred mechanism, greatly improves the effective utilization of material.

Description

Technical Field

[0001] The utility model relates to the field of cigarette manufacturing, in particular to a cigarette feeding system for a cigarette making machine suitable for disordered heated cigarettes. Background Art

[0002] In cigarette enterprises, disordered heated cigarettes generally use modified PASSIM and PROTOS series cigarette making machines to roll the cigarette rod blanks. The modification is mainly based on the circumference and length of the disordered heated cigarettes to modify the corresponding mechanisms, but the characteristics of the raw materials used for the heated cigarettes are not considered, resulting in high raw material consumption and poor rolling quality.

[0003] Firstly, the raw materials used for disordered heated cigarettes are significantly different from traditional cigarettes. Generally, reconstituted tobacco filaments using improved processes such as the roll pressing method, thick slurry method, and papermaking method are used. Its thickness is 10% - 60% higher than that of tobacco leaves, the long filament rate is more than 50% higher, the microstructure is relatively dense, and the softness is poor. The filling value of the roll pressing method and thick slurry method reconstituted tobacco filaments is only 50% - 70% of that of tobacco leaves. The existing modified cigarette equipment cannot well adapt to the production and processing of disordered heated cigarettes; secondly, the cut tobacco used for traditional cigarettes contains a certain amount of stem chips, and the stem chips need to be selected by air separation to prevent them from entering the cigarette rod and affecting the sensory quality or piercing the cigarette rod. However, the reconstituted tobacco filaments used for disordered heated cigarettes do not contain stem chips. The air separation process will cause a decrease in the moisture of the reconstituted tobacco filaments and form breakage, and the centralized stem removal and dust removal system配套 with the cigarette making machine is likely to carry away the reconstituted tobacco filaments, resulting in waste.

[0004] In the actual application process, it is found that the weight deviation of the cigarette rods produced by the current cigarette making machine is 20% higher than that of traditional cigarettes, and the effective utilization rate of the reconstituted tobacco filaments is only 60% - 90% of that of traditional cut tobacco. Moreover, the occurrence ratios of quality defects such as cigarette rod空头 and bamboo joint cigarettes are also relatively high. Even if attempts are made to readjust the wire feeding transmission part of the machine, the speeds, clearances, and negative pressure air suction of each component, the improvement effect is still not obvious. Content of the Utility Model

[0005] In view of the above, the utility model aims to provide a cigarette feeding system for a cigarette making machine suitable for disordered heated cigarettes to solve the aforementioned technical problems.

[0006] The technical solution adopted by the utility model is as follows:

[0007] This utility model provides a cigarette machine feeding system suitable for disordered heated cigarettes, including: a tobacco input box, a steep-angle conveyor belt located at the entrance of the tobacco input box, a metering roller and a paddle roller located on both sides of the steep-angle conveyor belt; a main metering needle roller and an auxiliary metering needle roller located in a hopper below the tobacco input box; a conveying device located on one side of the main metering needle roller, and a spring roller located between the main metering needle roller and the conveying device; and a negative pressure suction channel is provided on one side of the rear end of the conveying device.

[0008] Additionally, a recovery mechanism is provided at the rear end of the conveying device and below the negative pressure suction channel. The recovery mechanism includes a second vibrating groove, a wire collecting funnel located below one end of the second vibrating groove, and a first spiral wire returner located below the wire collecting funnel.

[0009] In at least one of the possible implementations, a first vibrating trough and an adjustable baffle are provided in the hopper at the rear of the cigarette machine, the adjustable baffle dividing the hopper into two parts:

[0010] The front hopper, formed by the main metering needle roller and the adjustable baffle, is used to collect the thin filaments conveyed by the steep-angle conveyor belt and the return filaments fed into the first vibrating trough.

[0011] The rear hopper, formed by the adjustable baffle and the silo storage box plate, is used to collect thin shreds and tobacco dust that slip through the gaps between components.

[0012] In at least one possible implementation, the recycling mechanism further includes a second spiral rewinder, the two ends of which correspond to the first vibrating groove and the first spiral rewinder, respectively.

[0013] In at least one of the possible implementations, two pairs of photoelectric detection devices are provided in the front hopper;

[0014] The first photoelectric detection device is located on the upper part of the auxiliary metering needle roller and is used to detect the stacking height of the thin sheet filaments at the angle between the main metering needle roller and the auxiliary metering needle roller.

[0015] The second photoelectric detection device is located at the upper part between the main metering needle roller and the adjustable baffle, and is used to detect the stacking height of the thin sheet filaments in the area between the main metering needle roller and the adjustable baffle.

[0016] In at least one possible implementation, the conveying device employs a high-frequency vibrating groove, which is used to comb the sheet filaments into the same direction during the forward conveying of the sheet filaments.

[0017] In at least one possible implementation, the surface of the high-frequency vibration groove is provided with a plurality of openings, and the openings are connected to positive pressure air.

[0018] In at least one possible implementation, the surface of the conveying device is provided with a plurality of patterns or protrusions.

[0019] In at least one possible implementation, a guide vane is provided at the tail end of the conveying device. The guide vane is connected to positive pressure air to provide airflow to the sheet filaments so that the sheet filaments are loosened and fed into the negative pressure suction channel.

[0020] Compared with the prior art, the main design concept of this utility model is as follows: It includes a tobacco shred input box, a steep-angle conveyor belt located at the entrance of the tobacco shred input box, a metering roller and a paddle roller located on both sides of the steep-angle conveyor belt; a main metering needle roller and an auxiliary metering needle roller located in a hopper below the tobacco shred input box; a conveying device located on one side of the main metering needle roller, and a spring roller located between the main metering needle roller and the conveying device; a negative pressure suction channel is provided on one side of the rear end of the conveying device; and a recycling mechanism is also provided at the rear end of the conveying device and below the negative pressure suction channel. The recycling mechanism includes a second vibrating trough, a tobacco collecting funnel located below one end of the second vibrating trough, and a first spiral tobacco returner located below the tobacco collecting funnel. This utility model, taking into account the characteristics of the thin tobacco shreds used in heated cigarettes, improves the key components of the cigarette machine's tobacco feeding system. It not only avoids the use of air separation, improving the quality of cigarette products, but also replaces the stem removal and impurity removal device with a tobacco recycling mechanism, significantly improving the effective utilization rate of materials. Attached Figure Description

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the utility model will be further described below with reference to the accompanying drawings, wherein:

[0022] Figure 1 A front view schematic diagram of a cigarette machine feeding system for disordered heated cigarettes provided in an embodiment of this utility model (some components are shown in perspective).

[0023] Figure 2 A side view schematic diagram of a cigarette machine feeding system suitable for disordered heated cigarettes provided in an embodiment of this utility model (some components are shown in perspective).

[0024] Explanation of reference numerals in the attached drawings: 1-Tobacco input box; 2-Quantitative roller; 3-Magnet; 4-Steep angle conveyor belt; 5-Paddle roller; 6-First vibrating trough; 7-Returning tobacco; 8-Adjustable baffle; 9-Storage box plate; 10-Hopper; 11-Main metering needle roller; 12-Cleaning roller; 13-Auxiliary metering needle roller; 14-Elastic tobacco roller; 15-Conveying device; 16-Air guide plate; 17-Second vibrating trough; 18-Tobacco collection funnel; 19-Front spiral returning tobacco; 20-Side spiral returning tobacco; 21-Negative pressure suction duct; 22-Suction mesh belt. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] This utility model proposes an embodiment of a cigarette machine tobacco feeding system suitable for disordered heated cigarettes, specifically, as follows: Figure 1 and Figure 2 As shown, it includes: a tobacco input box 1, a steep-angle conveyor belt 4 located at the entrance of the tobacco input box 1, a metering roller 2 and a paddle roller 5 located on both sides of the steep-angle conveyor belt 4; a main metering needle roller 11 and an auxiliary metering needle roller 13 located in a hopper 10 below the tobacco input box 1; a conveying device 15 located on one side of the main metering needle roller 11, and a spring roller 14 located between the main metering needle roller 11 and the conveying device 15; and a negative pressure suction channel 21 provided on one side of the rear end of the conveying device 15.

[0027] Additionally, a recycling mechanism is provided at the rear end of the conveying device 15 and below the negative pressure suction channel 21. The recycling mechanism includes a second vibrating groove 17, a wire collecting funnel 18 located below one end of the second vibrating groove 17, and a first spiral wire returner 19 located below the wire collecting funnel 18.

[0028] The working process of this utility model is as follows: After the tobacco shreds are transported to the tobacco shred input box 1 through the pipeline or manually, the tobacco shreds are lifted by the steep angle conveyor belt 4, and the excess tobacco shreds are initially quantified by the metering roller 2;

[0029] Preferably, a magnet 3 is provided on the upper part of the steep-angle conveyor belt 4 to remove magnetic impurities such as iron filings from the tobacco.

[0030] A paddle roller 5 is provided on the side of the steep angle conveyor belt 4. The paddle roller 5 brushes off the tobacco shreds carried by the steep angle conveyor belt 4. The tobacco shreds fall into the main metering needle roller 11 in the hopper 10 at the rear of the cigarette machine under the action of gravity.

[0031] It can be added here that, in some preferred embodiments of this utility model, a first vibrating groove 6 and an adjustable baffle 8 are provided in the rear feed bin 10 of the cigarette machine. The adjustable baffle 8 divides the feed bin into front and rear parts. The front feed bin formed by the main metering needle roller 11 and the adjustable baffle 8 is used to collect the thin filaments conveyed by the steep-angle conveyor belt 4 and the return filaments 7 (mainly excess thin filaments cut by the splitting knife) from the first vibrating groove 6. The rear feed bin formed by the adjustable baffle 8 and the filament storage box plate 9 of the feed bin 10 is used to collect the thin filaments and tobacco dust that slip through the gaps between the parts and prevent them from falling to the ground. The angle of the adjustable baffle 8 is adjustable, and the gap between its tail and the main metering needle roller 11 is 0.5-1.0 mm. The adjustment of the angle of the adjustable baffle 8 can be achieved by means of an angle actuator, a handle, or other mechanisms (preferably an angle actuator; an optional electronic control implementation method is provided later). This utility model will not elaborate on this aspect. Furthermore, setting an adjustable baffle with an adjustable angle can effectively solve the problem that thin filaments are straight and uncurled, making them difficult to lift and convey effectively.

[0032] Continuing from the previous text, the main metering needle roller 11 feeds the sheet shreds forward by rotating, while the auxiliary metering needle roller 13 measures the amount of sheet shreds. Excess tobacco shreds form a tobacco bundle between the main metering needle roller 11 and the auxiliary metering needle roller 13, ensuring a sufficient supply of tobacco shreds. More preferably, a cleaning roller 12 can be provided above the auxiliary metering needle roller 13 to brush off the small amount of tobacco shreds carried by the auxiliary metering needle roller 13.

[0033] The spring roller 14, which acts as a connector, throws out the tobacco shreds carried by the main metering needle roller 11 and feeds them forward to the conveying device 15. It can be noted that the conveying device 15 can be a high-speed belt or a high-frequency vibrating trough (the vibration frequency can be set by the trough driving component; "high frequency" is a relative concept, and a higher vibration frequency can be set as needed). During the forward conveying of the thin shreds, the high-frequency vibrating trough can gradually comb the thin shreds into the same direction, which helps to improve the orderliness of the tobacco shreds to a certain extent. Based on this concept, the surface of the high-frequency vibrating trough can also be provided with openings, with a diameter of 0.5-1.0 mm, facing the direction of movement of the thin shreds (tobacco shreds). Positive pressure air can be connected to the openings, keeping the tobacco shreds in a "semi-boiling" state, which is more conducive to the conveying and direction adjustment of the thin shreds. Therefore, the use of a high-frequency vibrating trough conveying method not only simplifies the mechanism and reduces tobacco breakage, but also improves the orderliness of the thin shreds in heated cigarettes by combing the consistency of the thin shreds' direction through vibration, thus improving product quality and facilitating the insertion of the core rod in the heated cigarette device.

[0034] In addition, the surface of the conveying device 15 may be provided with a number of patterns or protrusions with a certain structural shape to increase friction and facilitate the conveying of thin filaments. For example, the height of the surface pattern or protrusions may be set to 0.5-2mm.

[0035] Continuing from the previous description, the conveying device 15 transports the thin sheet filaments to the negative pressure suction duct 21. The negative pressure suction duct 21 uses suction air to transport the thin sheet filaments to the suction mesh belt 22, after which they enter the subsequent processes of the cigarette machine, such as being shaped by a splitting knife, wrapped with cigarette paper, slit, fitted with filter rods, and slit again to form cigarettes. Preferably, a guide plate 16 can be provided at the tail of the conveying device 15. The guide plate 16 is connected to positive pressure air to provide additional air force for the thin sheet filaments, which helps to loosen the thin sheet filaments and carry them away by the negative pressure suction duct 21.

[0036] The remaining tobacco shreds not carried away by the negative pressure fall onto the second vibrating trough 17, which transports them to the shred collection funnel 18, and then they fall to the first spiral recycler 19. The first spiral recycler 19 is used to recycle the tobacco shreds, and the recycling path can be set as needed, for example, recycling to an external waste trough, or more preferably, combined with the first vibrating trough 6 mentioned above. Figure 2 The recycling mechanism further includes a second spiral rewinder 20, with its two ends corresponding to the first vibrating trough 6 and the first spiral rewinder 19, respectively. Thus, the sheet fibers recovered by the first spiral rewinder 19 can be directly fed to the first vibrating trough 6 via the second spiral rewinder 20, and then evenly fed into the hopper 10 via the first vibrating trough 6. More preferably, it is fed into the front hopper formed by the main metering needle roller 11 and the adjustable baffle 8. Therefore, the sheet fibers that fall off and are not used in subsequent processes are directly returned to the hopper, ensuring that the moisture content and physical state of these recovered sheet fibers remain almost unchanged. This not only helps reduce breakage but also effectively avoids raw material waste, significantly improving the effective utilization rate of the sheet fibers.

[0037] Finally, it can be added that two pairs of photoelectric detection devices (not shown in the figure) can be installed in the front hopper. The first photoelectric detection device is preferably installed on the upper part of the auxiliary metering needle roller 13 to detect the stacking height of the thin shreds at the angle between the main metering needle roller 11 and the auxiliary metering needle roller 13. The second photoelectric detection device is preferably installed on the upper part between the main metering needle roller 11 and the adjustable baffle 8 to detect the stacking height of the thin shreds in the area between the main metering needle roller 11 and the adjustable baffle 8. The angle of the adjustable baffle 8 can be electrically adjusted by the two pairs of photoelectric detection devices to avoid excessive accumulation of tobacco shreds at the angle or in the area, which could lead to poor operation or material loss.

[0038] In summary, the main design concept of this utility model includes a tobacco shred input box, a steep-angle conveyor belt located at the entrance of the tobacco shred input box, a metering roller and a paddle roller located on both sides of the steep-angle conveyor belt; a main metering needle roller and an auxiliary metering needle roller located in the hopper below the tobacco shred input box; a conveying device located on one side of the main metering needle roller, and a spring roller located between the main metering needle roller and the conveying device; a negative pressure suction channel is provided on one side of the rear end of the conveying device; and a recycling mechanism is provided at the rear end of the conveying device and below the negative pressure suction channel. The recycling mechanism includes a second vibrating trough, a tobacco collecting funnel located below one end of the second vibrating trough, and a first spiral tobacco returner located below the tobacco collecting funnel. This utility model, taking into account the characteristics of the thin tobacco shreds used in heated cigarettes, improves the key components of the cigarette machine's tobacco feeding system. It not only avoids the use of air separation, improving the quality of cigarette products, but also replaces the stem removal and impurity removal device with a tobacco recycling mechanism, significantly improving the effective utilization rate of materials.

[0039] In this embodiment of the invention, any use of terms expressing location is based on a relative concept of the embodiment. Furthermore, "at least one" refers to one or more, and "more than one" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent the existence of A alone, A and B simultaneously, or B alone. A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, and c can represent: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, and c can be single or multiple.

[0040] The above description of the structure, features, and effects of this utility model is based on the embodiments shown in the drawings. However, the above are only preferred embodiments of this utility model. It should be noted that the technical features involved in the above embodiments and their preferred methods can be reasonably combined and matched by those skilled in the art to form a variety of equivalent solutions without departing from or changing the design concept and technical effects of this utility model. Therefore, this utility model is not limited to the scope of implementation shown in the drawings. Any changes made in accordance with the concept of this utility model, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and drawings, should be within the protection scope of this utility model.

Claims

1. A cigarette machine tobacco feeding system suitable for disordered heating of cigarettes, characterized in that, include: The tobacco input box, the steep-angle conveyor belt located at the entrance of the tobacco input box, and the metering roller and the paddle roller located on both sides of the steep-angle conveyor belt respectively; The main metering needle roller and the auxiliary metering needle roller are located in the hopper below the tobacco input box; a conveying device is located on one side of the main metering needle roller; and a spring roller is located between the main metering needle roller and the conveying device; a negative pressure suction channel is provided on one side of the rear end of the conveying device. Additionally, a recovery mechanism is provided at the rear end of the conveying device and below the negative pressure suction channel. The recovery mechanism includes a second vibrating groove, a wire collecting funnel located below one end of the second vibrating groove, and a first spiral wire returner located below the wire collecting funnel.

2. The cigarette feeding system for unordered heated cigarettes according to claim 1, characterized in that, A first vibrating trough and an adjustable baffle are installed in the material bin at the rear of the cigarette machine. The adjustable baffle divides the material bin into two parts: The front hopper, formed by the main metering needle roller and the adjustable baffle, is used to collect the thin filaments conveyed by the steep-angle conveyor belt and the return filaments fed into the first vibrating trough. The rear hopper, formed by the adjustable baffle and the silo storage box plate, is used to collect thin shreds and tobacco dust that slip through the gaps between components.

3. The cigarette feeding system for unordered heated cigarettes according to claim 2, characterized in that, The recycling mechanism further includes a second spiral rewinder, the two ends of which correspond to the first vibrating groove and the first spiral rewinder, respectively.

4. The cigarette feeding system for unordered heated cigarettes according to claim 2, characterized in that, Two pairs of photoelectric detection devices are installed in the front hopper; The first photoelectric detection device is located on the upper part of the auxiliary metering needle roller and is used to detect the stacking height of the thin sheet filaments at the angle between the main metering needle roller and the auxiliary metering needle roller. The second photoelectric detection device is located at the upper part between the main metering needle roller and the adjustable baffle, and is used to detect the stacking height of the thin sheet filaments in the area between the main metering needle roller and the adjustable baffle.

5. The cigarette feeding system for unordered heated cigarettes according to claim 1, characterized in that, The conveying device employs a high-frequency vibrating groove, which is used to comb the thin sheet filaments into the same direction during the forward conveying process.

6. The cigarette feeding system for disordered heated cigarettes according to claim 5, characterized in that, The surface of the high-frequency vibration groove is provided with several openings, and the openings are connected to positive pressure air.

7. The cigarette feeding system for unordered heated cigarettes according to claim 1, characterized in that, The surface of the conveying device is provided with several patterns or protrusions.

8. The cigarette feeding system for unordered heated cigarettes according to any one of claims 1 to 7, characterized in that, A guide plate is provided at the tail of the conveying device. The guide plate is connected to positive pressure air and is used to provide air force to the thin filaments so that the thin filaments are loosened and sent into the negative pressure suction channel.

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