Cigarette gap bridge conveying system

Abstract

The utility model provides a cigarette bridge-crossing conveying system. The cigarette bridge-crossing conveying system comprises a lifting channel for lifting cigarettes from an upstream machine to a conveying channel, the conveying channel formed by an open conveying belt, a discharging head and a descending channel for descending the cigarettes from the conveying channel to a downstream machine. Compared with a closed gap bridge channel used in the prior art, on one hand, by means of the open type conveying channel, the cigarette conveying process is more visual, the maintenance process is more convenient, and disassembly of a large number of protective covers is avoided. On the other hand, due to the fact that the open type conveying channel is not provided with a protective cover, the situation that the cigarettes are stacked due to resistance of the protective cover to form a reverse step-shaped cigarette pile with the thickness increased in the conveying direction is avoided, and transverse cigarettes and wrinkled cigarettes are greatly reduced. And on the other hand, compared with chain type conveying, belt type conveying is more continuous and stable, and the phenomena of jumping, jamming and breakage are avoided when flow is abnormal, and overload or cigarette jamming occurs.

Description

Technical Field

[0001] This utility model relates to the field of cigarette production technology, and in particular to a cigarette bridge conveying system. Background Technology

[0002] Cigarette bridge conveying systems are a common conveying solution used to connect upstream and downstream machines at different heights in cigarette production, such as connecting the discharge port of the unloading machine and the inlet of the packaging machine.

[0003] Existing cigarette conveying systems have the following problems: First, they generally use a chain conveyor system, where a chain is driven by a sprocket to run along a guide rail. If abnormal flow, overload, or cigarette jamming occurs, the chain may jump, jam, or break, causing the cigarettes to be squeezed, resulting in a large number of wrinkled or broken cigarettes, and even damaging the conveying channel. Second, existing systems use a fully enclosed conveying channel. The gaps on both sides of the enclosed channel have a significant impact on cigarette conveying. If the gaps are too small, cross-flow cigarettes are easily carried into downstream machines, such as the packaging machine's cigarette storage compartment; if the gaps are too large, cigarette leveling and guiding effects are poor, and reverse step-like cigarette piles can easily form at the connection points of the enclosed channel, leading to obstructed and disordered cigarette conveying, resulting in wrinkled or poorly packaged cigarettes and machine shutdowns. Furthermore, this enclosed channel is inconvenient to maintain in daily operations, and repairs and replacements require disassembling a large number of protective covers, which is time-consuming and labor-intensive.

[0004] Chinese patent CN202120158780.8 discloses a cigarette conveying device, including a conveying channel. The conveying channel consists of two side walls and guide belts and conveyor belts arranged on the upper and lower sides of the two side walls. The conveyor belts and guide belts move in the same direction on opposite sides. The conveying channel includes an input section, a ramp section, and an output section arranged sequentially. While the belt drive mechanism can alleviate the problem of cigarette wrinkling to some extent, it is essentially still a closed-loop channel and fails to overcome the aforementioned technical problems.

[0005] Therefore, providing a superior cigarette conveying system is a technical problem that urgently needs to be solved in this field. Utility Model Content

[0006] The purpose of this application is to provide a superior cigarette conveying system that solves at least one of the aforementioned technical problems.

[0007] The solution to the above problems in this application is: a cigarette bridge conveying system for conveying cigarettes from an upstream machine to a downstream machine, characterized in that it sequentially includes: a lifting channel, a conveying channel, a discharge head, and a descending channel along the cigarette conveying direction; the lifting channel lifts the cigarettes from the upstream machine to the conveying channel; the conveying channel is composed of an open conveyor belt that can horizontally convey cigarettes; the discharge head guides the cigarettes conveyed by the conveying channel to the descending channel; and the descending channel lowers the cigarettes to the downstream machine.

[0008] Furthermore, the conveying channel is disposed on the conveying channel support frame.

[0009] Furthermore, the conveyor belt is equipped with a drive pulley and at least one tension pulley.

[0010] Furthermore, the conveyor belt is an anti-slip flat belt, and the conveyor belt is driven by a knurled pulley.

[0011] Furthermore, it includes a leveler for flushing the sides of the smoke layer within the conveying channel.

[0012] Furthermore, the leveler includes a base, a rotating shaft, and a roller. The base is fixedly disposed on both sides of the conveying channel perpendicular to the conveying direction. The rotating shaft is vertically disposed on the base. The roller is rotatably disposed on the rotating shaft and can abut against the end of the cigarette stick on its side.

[0013] Furthermore, it includes a receiving tray for catching cigarettes that fall from the conveyor channel.

[0014] Furthermore, the material drop head is provided with a support, which includes a first support and a second support located on both sides of the center of gravity of the material drop head.

[0015] Furthermore, the upstream machine is a tray unloading machine.

[0016] Furthermore, the downstream machine is a packaging machine.

[0017] The beneficial effects of this application are as follows:

[0018] 1. This application provides a cigarette conveying system, comprising: a lifting channel for lifting cigarettes from an upstream machine to a conveying channel; a conveying channel formed by an open conveyor belt; a discharge head; and a descent channel for lowering cigarettes from the conveying channel to a downstream machine. Compared to the closed conveying channels used in the prior art, the open conveying channel of this application makes the cigarette conveying process more intuitive and the maintenance process more convenient, avoiding the need to disassemble a large number of protective covers. Furthermore, since the open conveying channel of this application does not have protective covers, it avoids the formation of reverse stepped cigarette piles with increasing thickness along the conveying direction due to the resistance of the protective covers, significantly reducing the generation of horizontal and wrinkled cigarettes. Moreover, belt conveying is more continuous and stable than chain conveying, and will not experience jumping, jamming, or breakage when there are abnormal flow rates, overloads, or cigarette jams.

[0019] 2. In cigarette conveying systems, the discharge port of the upstream machine and the inlet of the downstream machine often have different heights. Using a sloping conveyor channel has limited applicability. Setting up lifting and lowering channels can effectively overcome this height difference. In some production environments, placing the conveyor channel of the cigarette conveying system at a higher level helps reduce the floor space occupied, minimizes personnel exposure during cigarette transport, and lowers the risk of quality incidents or accidental injuries. This is particularly suitable for optimizing production line layout within limited space.

[0020] 3. This application also provides several preferred embodiments, including: providing a preferred specific scheme for the conveying channel; setting a leveler to make the two sides of the smoke layer in the conveying channel flush, avoiding quality problems caused by the lack of sidewalls in the conveying channel; setting a support frame to make the operation of the conveying channel more stable; setting a smoke receiving tray to receive the smoke sticks; and setting a bracket for multiple dropping heads to reduce vibration during the operation of the dropping heads. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In these drawings, similar reference numerals are used to denote similar elements. The drawings described below are some embodiments of the present invention, but not all embodiments. Other drawings will be readily available to those skilled in the art based on these drawings without any inventive effort.

[0022] Figure 1 This is a schematic diagram of a specific embodiment of the present invention.

[0023] Figure 2 for Figure 1 A schematic diagram of the leveling device 22.

[0024] Figure 3 for Figure 1 A schematic diagram of the middle conveyor channel 2.

[0025] Figure 4 for Figure 1 A schematic diagram of the support method for the material drop head 3.

[0026] In the picture:

[0027] 1. Lifting channel; 2. Conveying channel; 3. Drop head; 4. Descending channel;

[0028] 201. Conveyor belt; 202. Drive wheel; 203. Tensioner wheel;

[0029] 21. Conveying channel support frame; 22. Leveler; 221. Base; 222. Rotating shaft; 223. Roller; 23. Receiving tray; 31. First support; 32. Second support. Detailed Implementation

[0030] 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, not all, of the embodiments of this utility model. 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.

[0031] Please refer to Figure 1-4 Some embodiments of this application provide a cigarette conveying system, which includes, in sequence along the cigarette conveying direction: a lifting channel 1, a conveying channel 2, a dropping head 3, and a descending channel 4; the lifting channel 1 lifts the cigarette from the upstream machine to the conveying channel 2; the conveying channel 2 is composed of an open conveyor belt that can horizontally convey cigarettes; the dropping head 3 guides the cigarettes conveyed by the conveying channel 2 to the descending channel 4; the descending channel 4 lowers the cigarette to the downstream machine.

[0032] Compared to the enclosed bridge channels used in existing technologies, the open conveyor channel 2 of this application makes the cigarette conveying process more intuitive and the maintenance process more convenient, avoiding the need to disassemble a large number of protective covers. Furthermore, since the open conveyor channel 2 of this application does not have protective covers, it avoids the formation of reverse stepped cigarette piles with increasing thickness along the conveying direction due to the resistance of the protective covers, significantly reducing the generation of horizontal and wrinkled cigarettes. Moreover, belt conveying is more continuous and stable than chain conveying; abnormal flow, overload, or cigarette jamming will not cause jumping, jamming, or breakage.

[0033] In cigarette conveying systems, the discharge port of the upstream machine and the inlet of the downstream machine often have different heights. The usable area by setting a sloping conveyor channel 2 is limited. Setting an lifting channel 1 and a descending channel 4 can overcome the height difference between the upstream and downstream machines. Furthermore, in some production environments, placing the conveyor channel 2 of the cigarette conveying system at a higher position helps reduce the floor space occupied in the production environment, reduces personnel exposure during cigarette transport, and lowers the risk of quality incidents or accidental injuries. It is particularly suitable for optimizing production line layout in limited spaces, as the lifting channel 1 and descending channel 4 allow cigarettes to be transported in the higher conveyor channel 2. It is understood that, in implementing this application, the conveyor channel 2 can also be made with a certain slope as needed.

[0034] It should be noted that the discharge head 3 is used to guide the cigarettes conveyed by the conveying channel 2 to the descending channel 4. Its specific structure is existing technology, for example, including a discharge cavity for the cigarette material to fall, an expansion device disposed within the discharge cavity, and a material level detection device disposed within the discharge cavity. The expansion device includes an expansion baffle and a baffle shaft, the expansion baffle being rotatably disposed within the discharge cavity via the baffle shaft. The material level detection device is rotatably disposed within the discharge cavity via a detection device shaft. The specific structure of the lifting channel 1 is also existing technology, for example, it is configured as a chain conveyor belt. The specific structure of the descending channel 4 is also existing technology, for example, it is configured as a channel adapted to the size of the cigarettes, excluding power equipment.

[0035] In some embodiments, the conveyor belt 201 is provided with a drive pulley 202 and at least one tension pulley 203. The drive pulley 202 is used to drive the conveyor belt 201 or guide the conveyor belt 201. The tension pulley 203 facilitates the adjustment of belt tension and ensures conveying efficiency.

[0036] In some embodiments, the conveyor belt 201 is an anti-slip flat belt, and the drive pulley 202 and tension pulley 203 are both knurled pulleys. This provides the conveyor channel 2 with a certain overload protection capability during operation, greatly reducing the risk of cigarette quality issues and preventing damage to the cigarette bridge conveying system, thus reducing spare parts costs.

[0037] In some embodiments, the conveying channel 2 is disposed on a conveying channel support frame 21. The conveying channel support frame 21 is used to provide support for the conveying channel 2, making the operation of the conveying channel 2 more stable.

[0038] Since the open conveying channel 2 lacks sidewalls, unevenness may occur on the sides of the smoke layer on the conveying channel 2 due to various reasons during the production process. This means that the ends of some cigarettes may protrude or sink into the smoke pile, leading to cigarettes falling off, wrinkling, breaking, or even damaging downstream components of the conveying channel 2. Therefore, in some embodiments, the open conveying channel 2 also includes a leveler 22, which is used to level the cigarettes so that the two sides of the smoke layer in the conveying channel 2 are flush. One or more levelers 22 can be installed on the conveying channel 2 along the conveying direction.

[0039] The implementation of the leveler 22 is not limited. As a preferred embodiment, the leveler 22 includes a base, a rotating shaft, and a roller. The base is fixedly disposed on both sides of the conveying channel 2 perpendicular to the conveying direction. The rotating shaft is vertically disposed on the base. The roller is rotatably disposed on the rotating shaft, and its side can abut against the end of the cigarette. When the roller rotates, its side is always in a position that limits the side of the cigarette pile. Rolling and leveling with a cylindrical side is more gentle and less likely to damage the cigarette.

[0040] Since the open conveyor channel 2 has no sidewalls, cigarettes may fall during production and leveling, affecting the production environment. Therefore, in some embodiments, the open conveyor channel 2 includes a cigarette receiving tray to collect cigarettes falling from the conveyor channel 2. Preferably, the shape and size of the cigarette receiving tray in the vertical direction are basically the same as those of the conveyor channel 2, but the size of the projection perpendicular to the conveying direction is slightly larger than that of the conveyor channel 2.

[0041] Since the material drop head 3 described in this application does not have a rigid support like a closed bridge channel, the technical solution of using only one bracket to support the material drop head 3 will result in large vibrations. Therefore, in some embodiments, the material drop head 3 is provided with a bracket, including at least two brackets respectively located on both sides of the center of gravity of the buffer mechanism, to reduce vibrations.

[0042] This application is used for conveying cigarettes. The specific types of upstream and downstream machines connected to it are not limited. As a common approach, the upstream machine is a tray unloading machine and the downstream machine is a packaging machine.

[0043] The following is combined Figure 1-3 Specific embodiments of this application are listed, such as Figure 1 As shown, a specific embodiment of this application includes: a cigarette bridge conveying system for connecting the unloading machine 100 and the packaging machine 200, comprising: a lifting channel 1, a conveying channel 2, a dropping head 3, and a descending channel 4. The conveying channel 2 is disposed on a conveying channel support frame 21, and a receiving tray 23 is provided on the lower side of the conveying channel 2.

[0044] A pair of levelers 22 are provided on both sides of the conveying channel 2. Each leveler 22 includes a base 221, a rotating shaft 222, and a roller 223. The base is fixedly installed on both sides of the conveying channel 2 perpendicular to the conveying direction. The rotating shaft is vertically installed on the base. The roller is rotatably installed on the rotating shaft, and its side can abut against the end of the cigarette. When the roller rotates, its side is always in a position that limits the side of the cigarette pile. Rolling and leveling with a cylindrical side is more gentle and less likely to damage the cigarette.

[0045] After the cigarettes are discharged from the unloading machine, they are horizontally conveyed to the lifting channel 1, and then lifted into the conveying channel 2. A cigarette layer is formed on the conveying channel 2, and then conveyed to the dropping head 3. The dropping head 3 guides the cigarettes into the descending channel 4, and then sends them into the packaging machine.

[0046] like Figure 3 As shown, the conveying channel 2 in this embodiment is composed of an open conveyor belt 201. The conveyor belt 201 is provided with two drive wheels 202 and two tension wheels 203. The conveyor belt 201 is an anti-slip flat belt, and the drive wheels 202 and tension wheels 203 are both knurled pulleys.

[0047] like Figure 4 As shown, the material discharge head 3 in this embodiment is provided with a first support 31 and a second support 32. The first support 31 is a common support scheme for the material discharge head 3 in the prior art. The first support 31 is L-shaped, with its shorter side firmly connected to the material discharge head 3 and its longer side connected to the ground. The second support 32 is connected to the material discharge head 3 on the side of the material discharge section away from the first support 31, serving to provide support and reduce vibration.

[0048] The above-described contents can be implemented individually or in combination in various ways, and all such variations are within the protection scope of this utility model.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0050] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific embodiments of the present invention are limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications or substitutions should be considered within the protection scope of the present invention.

Claims

1. A cigarette conveying system for transporting cigarettes from an upstream machine to a downstream machine, characterized in that, The system includes, in sequence along the cigarette conveying direction: a lifting channel (1), a conveying channel (2), a dropping head (3), and a descending channel (4); the lifting channel (1) lifts the cigarette from the upstream machine to the conveying channel (2); the conveying channel (2) is composed of an open conveyor belt (201) that can horizontally convey cigarettes; the dropping head (3) guides the cigarettes conveyed by the conveying channel (2) to the descending channel (4); the descending channel (4) lowers the cigarettes to the downstream machine; it also includes a leveler (22) for leveling the sides of the cigarette layer in the conveying channel (2); the leveler (22) includes a base (221), a rotating shaft (222), and a roller (223); the base (221) is fixedly installed on both sides of the conveying channel (2) perpendicular to the conveying direction; the rotating shaft (222) is vertically installed on the base (221); and the roller (223) is rotatably installed on the rotating shaft (222) and its side can abut against the end of the cigarette.

2. The cigarette conveying system according to claim 1, characterized in that, The conveying channel (2) is provided on the conveying channel support frame (21).

3. The cigarette conveying system according to claim 1, characterized in that, The conveyor belt (201) is provided with a drive wheel (202) and at least one tensioning wheel (203).

4. The cigarette conveying system according to claim 1, characterized in that, The conveyor belt (201) is an anti-slip flat belt, and the conveyor belt (201) is driven by a knurled pulley.

5. The cigarette conveying system according to claim 1, characterized in that, Includes a receiving tray (23) for receiving cigarettes that fall from the conveying channel (2).

6. The cigarette conveying system according to claim 1, characterized in that, The material drop head (3) is provided with a support, which includes a first support (31) and a second support (32) located on both sides of the center of gravity of the material drop head (3).

7. The cigarette conveying system according to claim 1, characterized in that, The upstream machine is a tray unloading machine.

8. The cigarette conveying system according to claim 1, characterized in that, The downstream machine is a packaging machine.

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