Automatic cleaning device for upper screen of fluidized bed of cigarette making machine

Abstract

The utility model provides an automatic cleaning device for an upper screen of a fluidized bed of a cigarette making machine, which comprises a rodless cylinder, an air distribution block, a copper pipe nozzle component, a positive pressure air pipe and a programmable controller, the rodless cylinder is horizontally mounted in a cavity of the upper screen, the air distribution block is fixedly connected with a cylinder slider of the rodless cylinder, and the copper pipe nozzle component is fixedly connected with the cylinder slider of the rodless cylinder. The positive pressure air pipe is connected with an air inlet of the air distribution block, and the copper pipe nozzle assembly is connected with a copper pipe connector of the air distribution block. A two-position three-way electromagnetic valve is arranged on the positive pressure air pipe, a two-position five-way electromagnetic valve is arranged on an air path of the rodless air cylinder, and the two-position three-way electromagnetic valve and the two-position five-way electromagnetic valve are electrically connected with the programmable controller. According to the automatic cleaning device for the upper screen of the fluidized bed of the cigarette making machine, tobacco powder accumulated on the upper screen of the fluidized bed can move, and therefore the upper screen of the fluidized bed of the cigarette making machine can be automatically cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette making machines, in particular to an automatic cleaning device for an upper screen of a fluidized bed of a cigarette making machine. Background Art

[0002] During the operation of the cigarette making machine, the shredded tobacco entering the fluidized bed contains cigarette dust, and the circulating wind system sends the cigarette dust through the upper screen into the vortex dust collector. However, according to fluid mechanics, the airflow in the upper screen cavity of the fluidized bed is not uniform. In areas with smaller airflow, cigarette dust will fall on the screen surface due to its own gravity, and then the cigarette dust will gradually diffuse and accumulate through molecular gravity, causing the upper screen surface of the fluidized bed to be gradually covered by cigarette dust, resulting in a reduction in the effective working area of ​​the screen, which in turn affects the weight deviation and draw resistance of cigarettes.

[0003] In the prior art, in order not to affect the normal operation of the equipment and ensure the quality of cigarettes, it is necessary to manually clean the accumulated cigarette ends during maintenance. There are two obvious disadvantages of manual cleaning: one is that the cleaning cycle is long, which has a significant impact on the intrinsic quality of cigarettes; the other is that the dust hazard is serious during cleaning, which has a significant impact on the health of cleaning personnel. Through the analysis of manual cleaning actions, it can be known that as long as the cigarette ends accumulated on the upper screen of the fluidized bed are moved, they can be sucked away by the circulating wind system. Accordingly, the utility model provides an automatic cleaning device for the upper screen of the fluidized bed of a cigarette making machine, which can make the cigarette ends accumulated on the upper screen of the fluidized bed move. Utility Model Content

[0004] The utility model aims to provide an automatic cleaning device for the upper screen of the fluidized bed of a cigarette making machine, which can move the cigarette dust accumulated on the upper screen of the fluidized bed, thereby realizing automatic cleaning of the upper screen of the fluidized bed of the cigarette making machine.

[0005] The utility model provides an automatic cleaning device for the upper screen of the fluidized bed of a cigarette making machine, comprising a rodless cylinder, an air distribution block, a copper tube nozzle assembly, a positive pressure air pipe and a programmable controller, wherein the rodless cylinder is horizontally installed in an upper screen cavity, the air distribution block is fixedly connected to a cylinder slider of the rodless cylinder, the positive pressure air pipe is connected to an air inlet of the air distribution block, and the copper tube nozzle assembly is connected to a copper tube interface of the air distribution block; a two-position three-way solenoid valve is arranged on the positive pressure air pipe, a two-position five-way solenoid valve is arranged on the air path of the rodless cylinder, and the two-position three-way solenoid valve and the two-position five-way solenoid valve are electrically connected to the programmable controller respectively.

[0006] According to an automatic cleaning device for the upper screen of a fluidized bed of a cigarette making machine provided by the utility model, the gas distribution block includes a gas distribution block body and a gas distribution channel arranged in the gas distribution block body, the air inlet is arranged at the upper end of the gas distribution block body, the copper tube interface includes an upper copper tube interface and a lower copper tube interface respectively arranged at the upper and lower ends of the gas distribution block body, and the air inlet, the upper copper tube interface and the lower copper tube interface are respectively connected to the gas distribution channel.

[0007] According to an automatic cleaning device for the upper screen of the fluidized bed of a cigarette making machine provided by the utility model, blowing channels are respectively provided at positions near the left and right ends inside the gas distribution block body, and the two blowing channels are respectively connected to the gas distribution channels, and two exhaust holes are provided on the gas distribution block body on one side facing the rodless cylinder, and the two rows of air holes respectively correspond to the two blowing channels, and each row of air holes is respectively connected to each blowing channel.

[0008] According to the automatic cleaning device for the upper screen of the fluidized bed of a cigarette making machine provided by the utility model, two connecting through holes are further provided on the gas distribution block body, and two first connecting screws pass through the two connecting through holes to be connected and fixed to the cylinder slider of the rodless cylinder.

[0009] According to the automatic cleaning device for the upper screen of the fluidized bed of a cigarette making machine provided by the utility model, a first copper tube quick connector is installed at the upper copper tube interface, and a second copper tube quick connector is installed at the lower copper tube interface.

[0010] According to an automatic cleaning device for the upper screen of a fluidized bed of a cigarette making machine provided by the utility model, the copper tube nozzle assembly includes a first copper tube and a second copper tube, a plurality of first nozzles are provided on the first copper tube, and a plurality of second nozzles are provided on the second copper tube; the first copper tube is detachably connected to the first copper tube quick connector, and the second copper tube is detachably connected to the second copper tube quick connector.

[0011] According to the automatic cleaning device for the upper screen of the fluidized bed of a cigarette making machine provided by the utility model, the first copper tube is extended horizontally, and the first copper tube and the rodless cylinder are perpendicular to each other; the second copper tube is extended downward.

[0012] According to the automatic cleaning device for the upper screen of the fluidized bed of a cigarette making machine provided by the utility model, the gas distribution block is a nylon gas distribution block.

[0013] According to the utility model, an automatic cleaning device for the upper screen of the fluidized bed of a cigarette making machine is provided with magnetic proximity switches for detecting the stroke of the cylinder slider at both ends of the rodless cylinder, and each of the magnetic proximity switches is electrically connected to the programmable controller.

[0014] According to the utility model, an automatic cleaning device for the upper screen of the fluidized bed of a cigarette making machine is provided, cylinder mounting seats are respectively installed at both ends of the rodless cylinder, and each cylinder mounting seat is respectively connected and fixed to the inner wall of the upper screen cavity by a second connecting screw.

[0015] The utility model provides an automatic cleaning device for the upper screen of the fluidized bed of a cigarette making machine. The rodless cylinder is horizontally installed in the upper screen cavity, the gas distribution block is connected and fixed to the cylinder slider of the rodless cylinder, the positive pressure air pipe is connected to the air inlet of the gas distribution block, the copper tube nozzle assembly is connected to the copper tube interface of the gas distribution block, a two-position three-way solenoid valve is arranged on the positive pressure air pipe, a two-position five-way solenoid valve is arranged on the air path of the rodless cylinder, and the two-position three-way solenoid valve and the two-position five-way solenoid valve are respectively electrically connected to a programmable controller; when in use, the two-position five-way solenoid valve can be controlled by the programmable controller to control the movement of the cylinder slider of the rodless cylinder, thereby driving the gas distribution block and the copper tube nozzle assembly to reciprocate in the upper screen cavity, and the two-position three-way solenoid valve can be controlled by the programmable controller to control the positive pressure air pipe to deliver positive pressure air to the gas distribution block, thereby spraying air to the upper screen of the fluidized bed during the reciprocating motion of the copper tube nozzle assembly, so that the cigarette powder accumulated on the upper screen of the fluidized bed is moved. Therefore, the automatic cleaning device for the upper screen of the fluidized bed of a cigarette making machine provided by the utility model can move the cigarette dust accumulated on the upper screen of the fluidized bed through positive pressure injection, so that the cigarette dust can be sucked away by the circulating wind system, which not only realizes the automatic cleaning of the upper screen of the fluidized bed, but also has a significant promoting effect on improving the intrinsic quality of cigarettes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic structural diagram of the automatic cleaning device for the upper screen of the fluidized bed of a cigarette making machine according to the utility model;

[0018] Figure 2 It is a schematic diagram of the split structure of the rodless cylinder, the gas distribution block, the copper tube nozzle assembly and the cylinder mounting seat in the automatic cleaning device for the upper screen of the fluidized bed of the cigarette making machine of the utility model;

[0019] Figure 3 It is a cross-sectional schematic diagram of the gas distribution block in the automatic cleaning device for the upper screen of the fluidized bed of a cigarette making machine according to the utility model;

[0020] Figure 4 This is a front view of the assembly and installation of the gas distribution block and the copper tube nozzle assembly in the automatic cleaning device for the upper screen of the fluidized bed of a cigarette making machine according to the utility model;

[0021] Figure 5 The utility model is a side view of the assembly and installation of the gas distribution block and the copper tube nozzle component in the automatic cleaning device for the upper screen of the fluidized bed of a cigarette making machine.

[0022] Description of reference numerals:

[0023] 1. Rodless cylinder;

[0024] 2. Gas distribution block; 201. Air inlet; 202A. Upper copper tube interface; 202B. Lower copper tube interface; 203. Gas distribution block body; 204. Gas distribution channel; 205. Air blowing channel; 206. Air hole; 207. Connecting through hole; 208A. First copper tube quick connector; 208B. Second copper tube quick connector;

[0025] 3. Copper tube nozzle assembly; 301. first copper tube; 302. second copper tube; 303. first nozzle; 304. second nozzle;

[0026] 4. Positive pressure air pipe; 5. Programmable controller; 6. Two-position three-way solenoid valve; 7. Air circuit; 8. Two-position five-way solenoid valve; 9. First connecting screw; 10. Cylinder mounting seat; 11. Second connecting screw. DETAILED DESCRIPTION

[0027] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] like Figures 1 to 5 As shown, the automatic cleaning device for the upper screen of the fluidized bed of a cigarette making machine according to an embodiment of the utility model comprises a rodless cylinder 1, a gas distribution block 2, a copper tube nozzle assembly 3, a positive pressure air pipe 4 and a programmable controller 5. The rodless cylinder 1 is horizontally installed in the upper screen cavity (not shown in the figure), the gas distribution block 2 is connected and fixed to the cylinder slider of the rodless cylinder 1, the positive pressure air pipe 4 is connected to the air inlet 201 of the gas distribution block 2, and the copper tube nozzle assembly 3 is connected to the copper tube interface of the gas distribution block 2. A two-position three-way solenoid valve 6 is provided on the positive pressure air pipe 4, and a two-position five-way solenoid valve 8 is provided on the air path 7 of the rodless cylinder 1. The two-position three-way solenoid valve 6 and the two-position five-way solenoid valve 8 are electrically connected to the programmable controller 5 respectively.

[0031] When in use, the two-position five-way solenoid valve 8 can be controlled by the programmable controller 5 to control the cylinder slider of the rodless cylinder 1 to reciprocate, thereby driving the gas distribution block 2 and the copper tube nozzle assembly 3 to reciprocate in the upper screen cavity. The two-position three-way solenoid valve 6 can be controlled by the programmable controller 5 to control the positive pressure air pipe 4 to deliver positive pressure air to the gas distribution block 2, so that the upper screen of the fluidized bed is sprayed during the reciprocating motion of the copper tube nozzle assembly 3, so that the smoke accumulated on the upper screen of the fluidized bed moves.

[0032] Therefore, the automatic cleaning device for the upper screen of the fluidized bed of a cigarette making machine provided by the utility model can move the cigarette dust accumulated on the upper screen of the fluidized bed through positive pressure injection, so that the cigarette dust can be sucked away by the circulating wind system, which not only realizes the automatic cleaning of the upper screen of the fluidized bed, but also has a significant promoting effect on improving the intrinsic quality of cigarettes.

[0033] Through the use of the automatic cleaning device for the upper screen of the fluidized bed of the cigarette making machine in this embodiment, not only the dust hazard caused by manual cleaning of the upper screen of the fluidized bed is eliminated, but also it has strong applicability and is not only suitable for the ZJ112 type cigarette making machine, but also can be applied to various other types of cigarette making machines whose wire suction forming systems are fluidized bed structures.

[0034] In addition, since the programmable controller 5 is used to automatically control the cleaning process of the upper screen, a high degree of control of the cleaning process is achieved. By setting the program of the programmable controller 5, the control of the cleaning time, cleaning action and cleaning speed can be specifically achieved.

[0035] In some embodiments of the present invention, the gas distribution block 2 includes a gas distribution block body 203 and a gas distribution channel 204 disposed in the gas distribution block body 203, wherein the air inlet 201 is disposed at the upper end of the gas distribution block body 203, and the copper tube interface includes an upper copper tube interface 202A and a lower copper tube interface 202B respectively disposed at the upper and lower ends of the gas distribution block body 203, and the air inlet 201, the upper copper tube interface 202A and the lower copper tube interface 202B are respectively connected to the gas distribution channel 204. That is, the positive pressure air delivered by the positive pressure air pipe 4 can enter the gas distribution channel 204 through the air inlet 201, and then be ejected outward through the copper tube nozzle assembly 3 connected to the copper tube interface.

[0036] Among them, blowing channels 205 are respectively provided at positions near the left and right ends of the gas distribution block body 203, and the two blowing channels 205 are respectively connected to the gas distribution channel 204, and two exhaust holes 206 are provided on the side of the gas distribution block body 203 facing the rodless cylinder 1, and the two exhaust holes 206 correspond to the two blowing channels 205, respectively, and each exhaust hole 206 is respectively connected to each blowing channel 205. That is, the positive pressure air in the gas distribution channel 204 can also be discharged through each exhaust hole 206, so that the rodless cylinder 1 can be cleaned.

[0037] Among them, two connecting through holes 207 are also provided on the air distribution block body 203, and two first connecting screws 9 pass through the two connecting through holes 207 to connect and fix with the cylinder slider of the rodless cylinder 1, thereby realizing reliable installation between the air distribution block 2 and the cylinder slider of the rodless cylinder 1.

[0038] Among them, an air pipe quick connector (not shown in the figure) is installed at the air inlet 201, and one end of the positive pressure air pipe 4 is detachably connected to the air pipe quick connector, thereby facilitating the detachable assembly of the positive pressure air pipe 4 and the air distribution block 2.

[0039] Specifically, a first copper tube quick connector 208A is installed at the upper copper tube interface 202A, and a second copper tube quick connector 208B is installed at the lower copper tube interface 202B. The copper tube nozzle assembly 3 includes a first copper tube 301 and a second copper tube 302, a plurality of first nozzles 303 are provided on the first copper tube 301, and a plurality of second nozzles 304 are provided on the second copper tube 302. The first copper tube 301 is detachably connected to the first copper tube quick connector 208A, and the second copper tube 302 is detachably connected to the second copper tube quick connector 208B, so as to facilitate the detachable assembly of the copper tube nozzle assembly 3 and the gas distribution block 2.

[0040] When the copper tube nozzle assembly 3 is installed, the first copper tube 301 is horizontally extended, and the first copper tube 301 and the rodless cylinder 1 are perpendicular to each other, and the second copper tube 302 is downwardly extended. That is, this installation method of the copper tube nozzle assembly 3 can better perform jet cleaning on the upper screen of the fluidized bed.

[0041] Specifically, the gas distribution block 2 is made of nylon material, which is not only easy to process and manufacture but also light in weight.

[0042] In some embodiments of the utility model, magnetic proximity switches (not shown) for detecting the stroke of the cylinder slider are respectively provided at both ends of the rodless cylinder 1, and each magnetic proximity switch is electrically connected to the programmable controller 5. That is, by providing magnetic proximity switches at both ends of the rodless cylinder 1, it is convenient to control the stroke of the cylinder slider.

[0043] In some embodiments of the utility model, cylinder mounting seats 10 are respectively installed at both ends of the rodless cylinder 1, and each cylinder mounting seat 10 is respectively connected and fixed to the inner wall of the upper screen cavity by a second connecting screw 11. Among them, the cylinder mounting seat 10 can be made of angle steel, which is convenient for realizing reliable installation between the rodless cylinder 1 and the upper screen cavity.

[0044] The utility model provides an automatic cleaning device for the upper screen of the fluidized bed of a cigarette making machine. During installation, two reserved holes can be set on the left wall of the upper screen cavity and sealed with nylon plugs. After removing one plug, the pipeline can just pass through. After removing the plug, in order not to affect the stability of the air pressure, a round hole smaller than 0.5 mm in diameter of the pipeline can be processed with a rubber sheet. The pipeline passes through the round hole in an interference fit manner, thereby ensuring the stability of the air pressure in the upper screen cavity.

[0045] In addition, in order to ensure that the cleaning action does not affect the normal operation of the equipment and the intrinsic quality of the product, the programmable controller 5 needs to meet the following functions when setting the program: 1. Cleaning cannot be performed when the equipment is operating normally; 2. Cleaning cannot be performed when the equipment fan is turned off; 3. Cleaning cannot be performed when the interval between two consecutive shutdowns of the equipment is too short; 4. Repeated cleaning cannot be performed after one shutdown; 5. When the equipment is restarted, if the cleaning action has not been completed, the cleaning action will be automatically stopped.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An automatic cleaning device for the upper screen of a fluidized bed of a cigarette making machine, characterized in that: It includes a rodless cylinder, an air distribution block, a copper tube nozzle assembly, a positive-pressure air pipe and a programmable controller. The rodless cylinder is horizontally installed in an upper screen cavity. The air distribution block is fixedly connected to a cylinder slider of the rodless cylinder. The positive-pressure air pipe is connected to an air inlet of the air distribution block. The copper tube nozzle assembly is connected to a copper tube interface of the air distribution block. A two-position three-way solenoid valve is provided on the positive-pressure air pipe, and a two-position five-way solenoid valve is provided on the air path of the rodless cylinder. The two-position three-way solenoid valve and the two-position five-way solenoid valve are electrically connected to the programmable controller respectively.

2. The automatic cleaning device for the upper screen of the fluidized bed of a cigarette making machine according to claim 1, characterized in that: The gas distribution block includes a gas distribution block body and a gas distribution channel arranged in the gas distribution block body, the air inlet is arranged at the upper end of the gas distribution block body, the copper tube interface includes an upper copper tube interface and a lower copper tube interface respectively arranged at the upper and lower ends of the gas distribution block body, and the air inlet, the upper copper tube interface and the lower copper tube interface are respectively connected to the gas distribution channel.

3. The automatic cleaning device for the upper screen of the fluidized bed of a cigarette making machine according to claim 2, characterized in that: Blowing channels are respectively provided at positions near the left and right ends inside the air distribution block body, and the two blowing channels are respectively connected to the air distribution channels. Two exhaust holes are provided on the side of the air distribution block body facing the rodless cylinder, and the two rows of air holes correspond to the two blowing channels respectively, and each row of air holes is respectively connected to each blowing channel.

4. The automatic cleaning device for the upper screen of the fluidized bed of a cigarette making machine according to claim 2, characterized in that: Two connecting through holes are also arranged on the main body of the gas distribution block, and two first connecting screws pass through the two connecting through holes respectively to be connected and fixed to the cylinder slider of the rodless cylinder.

5. The automatic cleaning device for the upper screen of the fluidized bed of a cigarette making machine according to claim 2, characterized in that: An air pipe quick connector is installed at the air inlet, and one end of the positive pressure air pipe is detachably connected to the air pipe quick connector.

6. The automatic cleaning device for the upper screen of the fluidized bed of a cigarette making machine according to claim 2, characterized in that: A first copper tube quick connector is installed at the upper copper tube interface, and a second copper tube quick connector is installed at the lower copper tube interface.

7. The automatic cleaning device for the upper screen of the fluidized bed of a cigarette making machine according to claim 6, characterized in that: The copper tube nozzle assembly includes a first copper tube and a second copper tube, wherein a plurality of first nozzles are arranged on the first copper tube, and a plurality of second nozzles are arranged on the second copper tube; the first copper tube is detachably connected to the first copper tube quick connector, and the second copper tube is detachably connected to the second copper tube quick connector.

8. The automatic cleaning device for the upper screen of the fluidized bed of a cigarette making machine according to claim 7, characterized in that: The first copper tube is extended horizontally, and the first copper tube and the rodless cylinder are perpendicular to each other; the second copper tube is extended downwardly.

9. The automatic cleaning device for the upper screen of the fluidized bed of a cigarette making machine according to any one of claims 1 to 8, characterized in that: Magnetic proximity switches for detecting the stroke of the cylinder slider are respectively provided at both ends of the rodless cylinder, and each of the magnetic proximity switches is electrically connected to the programmable controller.

10. The automatic cleaning device for the upper screen of the fluidized bed of a cigarette making machine according to any one of claims 1 to 8, characterized in that: Cylinder mounting seats are respectively installed at both ends of the rodless cylinder, and each of the cylinder mounting seats is connected and fixed to the inner wall of the upper screen cavity through a second connecting screw.

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