Self-cleaning laser impurity removal equipment

Abstract

The utility model relates to the technical field of cigarette manufacturing, in particular to self-cleaning laser impurity removal equipment. The device comprises a rack and two reference rollers arranged on the rack in parallel, a channel allowing tobacco to pass through is formed between the two reference rollers, the device further comprises a purging assembly used for purging the reference rollers, the purging assembly comprises an air pipe and an air part, the length direction of the air pipe is parallel to the reference rollers, and the air part is used for providing positive pressure air for the air pipe; the air pipe is arranged on the side, away from the channel, of the reference roller, and a plurality of air nozzles are arranged on the face, close to the reference roller, of the air pipe in the length direction of the air pipe. According to the reference roller cleaning device, the air pipe parallel to the reference roller in the length direction is arranged to conduct comprehensive blowing on the reference roller, and the cleaning effect on the reference roller is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cigarette manufacturing technical field especially, relate to a kind of self-cleaning laser impurity removal equipment. BACKGROUND

[0002] Tobacco laser impurity removal machine is an advanced efficient tobacco purification equipment, mainly used for removing sundries and foreign matters in tobacco. Its product structure includes laser, scanning system, control system, rejection system, vacuum system and other parts. The existing laser impurity removal machine is dependent on reference roll reflection laser imaging, and the sundries in the leaf are removed by the calculation and analysis of the background system. In the production process, leaves and dust are easy to fall on the reference roll, that is, during the rotation of the reference roll, although large leaves and other materials will normally fall, dust and sticky materials will still adhere to the reference roll. If the reference roll is not clean, it will cause imaging error and analysis system misjudgment, resulting in good product rejection.

[0003] The patent file with publication number CN217094761U discloses a kind of for optical channel's blowing device and laser impurity removal device, the structure of for optical channel's blowing device includes blowing component, the blowing component is set in the optical channel;Blowing valve, the blowing valve is connected with the blowing component;And control part, the control part is connected with the blowing valve.

[0004] In the prior art, the blowing component is fixedly arranged at one end of the optical channel for blowing, however, the optical channel is usually long, and the fixedly arranged blowing component has the problem of incomplete cleaning. UTILITY MODEL CONTENT

[0005] The utility model solves the above problems, and provides a self-cleaning laser impurity removal equipment with comprehensive cleaning.

[0006] The technical scheme for solving the problem of the utility model is to provide a self-cleaning laser impurity removal equipment, which includes a rack, two reference rolls arranged side by side on the rack, a channel formed between the two reference rolls for tobacco to pass through, and a blowing assembly for blowing the reference rolls, the blowing assembly includes an air pipe parallel to the reference rolls in the length direction, and an air component for providing positive pressure gas to the air pipe;The air pipe is arranged on the side of the reference roll away from the channel, and the air pipe is provided with a plurality of air nozzles on the side close to the reference roll along the length direction.

[0007] As a preferred embodiment of the utility model, the air outlet direction of the air nozzle is tangent to the reference roll.

[0008] As a preferred embodiment of the utility model, the air pipe includes a plurality of blowing sections along the length direction, the adjacent blowing sections are not connected, and the blowing sections are respectively provided with air inlets communicated with the air component.

[0009] As the preferred embodiment of the utility model, it further comprises a control member for controlling the distance between the air pipe and the reference roller.

[0010] As the preferred embodiment of the utility model, the control member comprises a pneumatic cylinder, which is arranged on the rack through a mounting plate, and the air pipe is connected with the piston rod of the pneumatic cylinder.

[0011] As the preferred embodiment of the utility model, the two ends of the air pipe in the length direction are respectively connected with connecting pipes, and the connecting pipes are connected with the control member.

[0012] As the preferred embodiment of the utility model, the mounting plate is detachably connected with the rack.

[0013] As the preferred embodiment of the utility model, the mounting plate is provided with a waist-shaped hole, and the length direction of the waist-shaped hole is perpendicular to the length direction of the reference roller and perpendicular to the extension direction of the piston rod of the pneumatic cylinder.

[0014] As the preferred embodiment of the utility model, it further comprises an angle adjusting structure for controlling the rotation angle of the air pipe.

[0015] As the preferred embodiment of the utility model, the air pipe is rotationally connected with the connecting pipe, the angle adjusting structure comprises a servo motor, the servo motor is installed on the mounting plate, and the output shaft of the servo motor is connected with the air pipe through a speed reducer.

[0016] The utility model has the advantages of:

[0017] 1. In the application, the air pipe parallel to the reference roller in the length direction is arranged to comprehensively blow the reference roller, thereby improving the cleaning effect of the reference roller.

[0018] 2. In some embodiments, the distance between the air pipe and the reference roller is controlled by the control member, which can adjust the blowing strength of the air pipe on the reference roller on the one hand, and can retract the air pipe after cleaning without affecting the original equipment laser impurity removal on the other hand.

[0019] 3. In some embodiments, the blowing direction of the compressed air sprayed by the air nozzle is along the tangent direction of the side surface of the reference roller, which can improve the blowing quality and blowing efficiency and prevent damage to the reference roller. On this basis, in some embodiments, the rotation angle of the air pipe is adjusted by the angle adjusting structure, so that the angle of the air nozzle is adjusted, so that the blowing direction of the compressed air sprayed by the air nozzle is along the tangent direction of the side surface of the reference roller under different distances between the air pipe and the reference roller. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a part structure schematic view of the laser impurity removal equipment in the prior art;

[0021] Figure 2 is a structural schematic diagram of a self-cleaning laser impurity removal device;

[0022] Figure 3 is a top view of a self-cleaning laser impurity removal device;

[0023] Figure 4 is a side view of a self-cleaning laser impurity removal device;

[0024] In the figure: reference roller 1, frame 11, air pipe 2, air nozzle 21, air inlet 22, connecting pipe 23, control member 3, mounting plate 31. DETAILED DESCRIPTION

[0025] The following is a specific implementation of the present application, and the technical solution of the present application is further described in combination with the drawings, but the present application is not limited to these embodiments.

[0026] A self-cleaning laser impurity removal device, as shown in Figure 1 , first, as in the prior art laser impurity removal device, including frame 11, two parallel rotatingly arranged between the frame 11 reference roller 1, two reference rollers 1 between the passage for tobacco. In addition, the two reference rollers 1 on both sides are respectively provided with front-end laser generator and rear-end laser generator, and the passage is provided with a checkpoint; above the passage is further provided with a feeding slot, and below the passage is further provided with an ejection module and a conveyor. In use, the sorted product is conveyed to the machine by the resonant vibration table, which can disperse the sorted product over the entire width, and the product then falls into the feeding slot of the machine. The feeding slot ensures that all products obtain a constant speed and direction in order to obtain a good image. All products will pass through the checkpoint in the passage, and the front-end laser generator and the rear-end laser generator will check the various optical characteristics of the product. After the inspection is completed, the ejection module separates the product according to the selected setting mode. The qualified product will continue to enter the discharge chute, and the intercepted product (defective product) will deviate from the original route and enter the defective product conveyor. Among them, since the product material is easy to fall onto the reference roller 1, it is necessary to clean the reference roller 1.

[0027] As shown in Figure 2 , it further comprises a blowing assembly for blowing the reference roller 1, the blowing assembly comprising an air pipe 2 parallel to the reference roller 1 in the length direction and having a length substantially the same as that of the reference roller 1, the air pipe 2 being arranged on the side of the reference roller 1 away from the passage, and a plurality of air nozzles 21 being arranged on the side of the air pipe 2 close to the reference roller 1 along the length direction of the air pipe 2. The blowing assembly further comprises a gas member (not shown in the figure) for providing positive pressure gas to the air pipe 2, and the positive pressure gas can be sprayed from the air nozzles 21 to the reference roller 1, thereby achieving comprehensive blowing and cleaning of the reference roller 1. In some embodiments, a collection box for collecting blowing impurities is arranged below the passage.

[0028] In some embodiments, as shown in Figure 4 The air outlet direction of the air nozzle 21 is tangent to the lower side of the reference roller 1, so that the blowing direction of the positive pressure air sprayed by the air nozzle 21 is along the tangent direction of the side of the reference roller 1. This tangential air flow mode makes the air flow cover the entire roller surface more uniformly, ensuring that every corner can be fully blown and improving the blowing quality; it can also generate greater shear force, which helps to quickly blow away the materials, dust or other impurities attached to the roller surface, improving the blowing efficiency; at the same time, it can reduce the impact of the air flow on the roller surface, preventing damage to the reference roller.

[0029] In some embodiments, as shown in Figure 2 The air pipe 2 includes a plurality of blowing sections along the length direction, and the adjacent blowing sections are not connected, that is, a plurality of partitions can be provided in the air pipe 2, and the blowing sections are formed between adjacent partitions. Each blowing section is provided with an air inlet 22 connected to the air pipe, so that the blowing of each blowing section can be controlled independently, thereby enabling the blowing section corresponding to the part of the reference roller 1 with impurities to be opened for blowing and cleaning, which is more targeted and energy-saving.

[0030] Since the distance between the air pipe 2 and the reference roller 1 is relatively close during blowing and cleaning to ensure the blowing effect, in order to avoid the influence of the air pipe 2 on the reference roller 1 during laser impurity removal, and to adjust the distance between the air pipe 2, or the air nozzle 21, and the reference roller 1 to obtain different blowing strengths, in some embodiments, the self-cleaning laser impurity removal device further comprises a control member 3 for controlling the distance between the air pipe 2 and the reference roller 1.

[0031] The control member 3 controls the air pipe 2 to move closer to or away from the reference roller 1, and in some embodiments, as shown in Figure 2 and Figure 3 The control member 3 includes an air cylinder, the body of the air cylinder is arranged on the rack 11 through a mounting plate 31, the air pipe 2 is connected to the piston rod of the air cylinder, and the extension direction of the piston rod of the air cylinder is perpendicular to the length direction of the reference roller 1, thereby driving the air pipe 2 to move closer to or away from the reference roller 1.

[0032] In some embodiments, as shown in Figure 3 The air pipe 2 is provided with an air cylinder at each end in the length direction; the two ends of the air pipe 2 are respectively connected with a connecting pipe 23 perpendicular to the air pipe 2, and the two connecting pipes 23 are respectively connected with the piston rods of the two air cylinders. On the one hand, the two ends of the air pipe 2 are controlled to move by the air cylinders, improving the stability of the movement of the air pipe 2; on the other hand, the air pipe 2 itself is not connected with the air cylinders, so that the length and outer diameter of the air pipe 2 do not change, facilitating the insertion of the air pipe 2 into the rack 11 to approach the reference roller 1. The connecting pipe 23 can be connected with the air pipe 2 or not connected. In some embodiments, in order to further improve the stability of the movement of the air pipe 22, as shown in Figure 4As shown, the connecting pipe 23 is connected with the cylinder through a connecting piece, which comprises a push plate arranged on the piston rod of the cylinder and a receiving plate vertically connected with the push plate, the connecting pipe 23 is overlapped on the receiving plate, and the receiving plate is further provided with a clamp for fixing the connecting pipe 23.

[0033] The cylinder can adjust the relative distance between the air pipe 2 and the reference roller 1 in the horizontal direction, but cannot adjust the position of the air pipe 2 in the vertical direction. On the premise that the air outlet direction of the air nozzle 21 is tangent to the reference roller 1, the air pipe 2 at different heights relative to the reference roller 1 will make the air nozzle 21 have different inclination angles relative to the horizontal plane, and will make the air blowing direction of the air nozzle 21 tangent to different positions of the side bottom of the reference roller 1, which affects the direction of the impurities carried by the airflow. In order to facilitate the collection of impurities, in some embodiments, the mounting plate 31 is detachably connected with the rack 11, the mounting plate 31 is provided with a waist-shaped hole, the length direction of the waist-shaped hole is perpendicular to the length direction of the reference axis 1 and perpendicular to the extension direction of the piston rod of the cylinder. Correspondingly, the rack 11 is provided with a mounting hole, by sequentially passing the screw through the mounting hole and the waist-shaped hole and connecting with the nut, the installation of the mounting plate 31 can be completed, and by adjusting the position of the screw in the waist-shaped hole, the installation height of the mounting plate 31 can be adjusted to adjust the installation height of the air pipe 2, so as to control the air blowing direction of the air nozzle 21 of the air pipe 2 to be tangent to the reference roller 1 and in the direction of the impurity collection box, facilitating the collection of impurities.

[0034] Since when the relative distance between the air pipe 2 and the reference roller 1 changes, the air outlet direction of the air nozzle 21 is tangent to the reference roller 1, the air blowing direction of the air nozzle 21 also needs to be adjusted, for example, according to the direction in Figure 4 When the air pipe 2 moves a certain distance to the right, the air nozzle 21 needs to rotate a certain angle clockwise, and then the air outlet direction of the air nozzle 21 can continue to be tangent to the reference roller 1. Therefore, in some embodiments, first, the air pipe 2 is not communicated with the connecting pipe 23, the end of the connecting pipe 23 is provided with a sleeve, and the air pipe 2 is rotatably inserted into the sleeve. Secondly, an angle adjusting structure for controlling the rotation of the air pipe 2 is further included. In some embodiments, the angle adjusting structure comprises a servo motor connected with the air pipe 2 through a speed reducer, the servo motor is installed on the mounting plate 31, and the rotation of the air pipe 2 is controlled by the output shaft of the servo motor to adjust the air outlet direction of the air nozzle 21.

[0035] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.

Claims

1. A self-cleaning laser impurity removal device, comprising a frame (11), two reference rollers (1) arranged side by side on the frame (11), and a channel formed between the two reference rollers (1) for passing tobacco, characterized in that: it further comprises a blowing assembly for blowing the reference rollers (1), the blowing assembly comprising an air pipe (2) parallel to the reference rollers (1) in the length direction and an air component for providing positive pressure gas to the air pipe (2); the air pipe (2) is arranged on the side of the reference rollers (1) away from the channel, and a side of the air pipe (2) close to the reference rollers (1) is provided with a plurality of air nozzles (21) along the length direction. The air outlet direction of the air nozzle (21) is tangent to the reference roller (1).

2. The self-cleaning laser deflasher of claim 1, wherein: The air pipe (2) comprises a plurality of blowing sections along the length direction, the adjacent blowing sections are not communicated, and the blowing sections are respectively provided with air inlets (22) communicated with the air component.

3. The self-cleaning laser deflasher of claim 1, wherein: It further comprises a control component (3) for controlling the distance between the air pipe (2) and the reference rollers (1).

4. The self-cleaning laser deflasher of claim 1, wherein: The control component (3) comprises an air cylinder, the air cylinder is arranged on the frame (11) through a mounting plate (31), and the air pipe (2) is connected with a piston rod of the air cylinder.

5. The self-cleaning laser deflasher of claim 4, wherein: Both ends of the air pipe (2) in the length direction are respectively connected with a connecting pipe (23) perpendicularly, and the connecting pipe (23) is connected with the control component (3).

6. The self-cleaning laser deflasher of claim 5, wherein: The mounting plate (31) is detachably connected with the frame (11).

7. The self-cleaning laser deflasher of claim 5, wherein: The mounting plate (31) is provided with a waist-shaped hole, the length direction of the waist-shaped hole is perpendicular to the length direction of the reference rollers (1) and perpendicular to the extension direction of the piston rod of the air cylinder.

8. The self-cleaning laser deflasher of claim 7, wherein: It further comprises an angle adjusting structure for controlling the rotation of the air pipe (2).

9. The self-cleaning laser deflasher of claim 6, wherein: The air pipe (2) is rotationally connected with the connecting pipe (23), the angle adjusting structure comprises a servo motor, the servo motor is mounted on the mounting plate (31), and an output shaft of the servo motor is connected with the air pipe (2) through a speed reducer.

10. The self-cleaning laser deflasher of claim 9, wherein: ​

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