A device for improving wire supply uniformity

Abstract

The present invention provides a device for improving the uniformity of wire supply, which includes a wind chamber, a bottom blowing air chamber, a wire throwing roller located in a wire throwing chamber, and an air flow channel. It also includes a crossflow impeller, a deflector, and a rotating drive member located outside the bottom blowing air chamber. The crossflow impeller is arranged on one side of the bottom blowing air chamber close to the air flow channel, and the crossflow impeller is parallel to the wire throwing roller; one end of the crossflow impeller is rotationally connected to one side of the bottom blowing air chamber through a first rotating shaft, and the other end of the crossflow impeller is rotationally connected to the other side of the bottom blowing air chamber through a second rotating shaft; the rotating drive member is connected to the first rotating shaft of the crossflow impeller; the deflector is parallel to the crossflow impeller; the deflector is arranged in the middle position of the connection between the air flow channel and the bottom blowing air chamber, and is close to the crossflow impeller, and the two ends of the deflector are respectively transitionally matched with the fixing holes on both sides of the bottom blowing air chamber through the connecting shaft. The present invention can make the air flow channel obtain more uniform blowing, and effectively avoid the phenomenon of tobacco blocking the wind chamber.

Description

Technical Field

[0001] The invention relates to the technical field of cigarette equipment, and in particular to a device for improving the uniformity of shredded cigarette supply. Background Art

[0002] like Figure 1 As shown, the bottom blowing air chamber 11, the throwing roller 12 and the air flow channel 13 of the ZJ17 tobacco-making unit are important components of the tobacco supply system. The throwing roller 12 throws the tobacco into the air flow channel through its own rotation and transports the tobacco to the wind chamber 14 with the help of the air flow provided by the bottom blowing air chamber 11. Among them, a low-pressure fan is used to supply air with a pressure of 12Mbar through the bottom blowing air chamber 11. However, during the operation of the equipment, the wind chamber is often blocked by tobacco, which seriously affects the effective operation rate of the equipment. After analysis, it is found that the main reason for the blockage of tobacco is that the bottom blowing air chamber provides uneven blowing to the air flow channel, resulting in uneven tobacco. Therefore, how to make the air flow channel get more uniform blowing has become a problem that technicians in this field urgently need to solve. Summary of the invention

[0003] The object of the present invention is to provide a device for improving the uniformity of silk supply so that the air flow channel can be blown more evenly.

[0004] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions:

[0005] A device for improving wire feeding uniformity, comprising a wind chamber, a bottom blowing air chamber, a wire throwing chamber located above the bottom blowing air chamber, a wire throwing roller located in the wire throwing chamber, and an air flow channel, one end of the air flow channel is connected to the bottom blowing air chamber, the other end of the air flow channel is connected to the wind chamber, the wire throwing chamber has a wire throwing port connected to the air flow channel, and further comprises a crossflow impeller, a deflector extending in the same direction as the crossflow impeller, and a rotating drive member located outside the bottom blowing air chamber, the crossflow impeller is arranged on one side of the bottom blowing air chamber close to the air flow channel , the cross-flow impeller is parallel to the wire throwing roller; one end of the cross-flow impeller is rotatably connected to one side of the bottom blowing air chamber through a first rotating shaft, and the other end of the cross-flow impeller is rotatably connected to the other side of the bottom blowing air chamber through a second rotating shaft; the rotary drive member is connected to the first rotating shaft of the cross-flow impeller; the deflector is parallel to the cross-flow impeller; the deflector is arranged in the middle position of the connection between the air flow channel and the bottom blowing air chamber, and is close to the cross-flow impeller, and the two ends of the deflector are transitionally matched with the fixing holes on both sides of the bottom blowing air chamber through a connecting shaft.

[0006] Preferably, it further comprises an adjusting knob, wherein the adjusting knob is connected to the connecting shaft and the adjusting knob is located outside the bottom blowing air chamber.

[0007] Preferably, the deflector is provided with a plurality of paddles, and the paddles are evenly distributed in the extension direction of the deflector; and the extension direction of the paddles is perpendicular to the extension direction of the deflector.

[0008] Preferably, the paddle is connected to the deflector via an adjusting screw.

[0009] Preferably, it also includes an airflow guide plate, the airflow channel includes a first channel and a second channel, the airflow guide plate includes a left guide plate located on the left side of the wire throwing chamber, and a right guide plate located above the wire throwing chamber, the left guide plate includes an upper guide plate and a lower guide plate; the first channel is formed between the upper guide plate and the right guide plate, the second channel is formed between the lower guide plate and the lower protective arc plate of the wire throwing chamber, the wire throwing port is a connecting port between the first channel and the wire throwing chamber; one end of the second channel is connected to the first channel, and the other end of the second channel is connected to the bottom blowing air chamber; the deflector is located between the lower protective arc plate and the lower guide plate.

[0010] Preferably, a plurality of first ultrasonic vibration generators are provided on the upper guide plate, and the first ultrasonic vibration generators are evenly distributed in the extension direction of the upper guide plate.

[0011] Preferably, a plurality of second ultrasonic vibration generators are provided on the right guide plate, and each of the second ultrasonic vibration generators is evenly distributed in the extension direction of the right guide plate.

[0012] Preferably, the upper guide plate includes a first guide plate and a second guide plate located below the first guide plate, and a plurality of the first ultrasonic vibration generators are evenly distributed in an extension direction of the first guide plate.

[0013] Preferably, a plurality of the first ultrasonic vibration generators are evenly distributed in the extension direction of the second guide plate.

[0014] Preferably, the rotary drive member is a motor.

[0015] The beneficial effects of the present invention are:

[0016] The device for improving the uniformity of tobacco supply of the present invention has a cross-flow impeller that rotates at high speed under the drive of a rotary drive member, so that the air entering the bottom blowing air chamber forms a wind curtain under the action of the cross-flow impeller. At the same time, when the wind curtain passes through the deflector, the air forms a relatively uniform and stable wind curtain in the extension direction of the deflector, and then blows toward the air flow channel, so that the air flow channel obtains relatively uniform blowing, and the tobacco can flow to the wind chamber relatively evenly, thereby effectively avoiding the phenomenon of tobacco blocking the wind chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the embodiments, and further describe the specific embodiments of the present invention in detail in conjunction with the drawings, wherein

[0018] Figure 1 It is a schematic diagram of an existing wire feeding device;

[0019] Figure 2 A schematic diagram of a device for improving wire feeding uniformity provided by an embodiment of the present invention;

[0020] Figure 3 Another schematic diagram of a device for improving wire feeding uniformity provided by an embodiment of the present invention;

[0021] Figure 4 A schematic diagram of a cross-flow impeller provided in an embodiment of the present invention;

[0022] Figure 5 A schematic diagram of the installation of the deflector and the paddle provided in an embodiment of the present invention;

[0023] Figure 6 Another schematic diagram of the device for improving wire feeding uniformity provided in an embodiment of the present invention.

[0024] Markings in the accompanying drawings:

[0025] 11. Bottom blowing chamber 12. Wire throwing roller 13. Air flow channel 14. Wind chamber

[0026] 21, bottom blowing chamber 22, air inlet 31, wire throwing roller 32, lower protective arc plate

[0027] 41, cross-flow impeller 42, first rotating shaft 51, guide 52, paddle

[0028] 53, adjusting knob 61, first guide plate 62, second guide plate 63, lower guide plate

[0029] 64, right guide plate 65, first ultrasonic vibrator 66, second ultrasonic vibrator

[0030] 71, first channel 72, second channel 81, motor DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the solution will be further described in detail below in conjunction with specific embodiments.

[0032] like Figures 2 to 6As shown, an embodiment of the present invention provides a device for improving the uniformity of wire feeding, which includes a wind chamber, a bottom blowing air chamber 21, a wire throwing chamber located above the bottom blowing air chamber, a wire throwing roller 31 located in the wire throwing chamber, and an air flow channel, one end of the air flow channel is connected to the bottom blowing air chamber, and the other end of the air flow channel is connected to the wind chamber, the wire throwing chamber has a wire throwing port connected to the air flow channel, and further includes a crossflow impeller 41, a deflector 51 with the same extension direction as the crossflow impeller, and a rotating drive member located outside the bottom blowing air chamber, the crossflow impeller 41 is arranged in the bottom blowing air chamber near the air flow The crossflow impeller is parallel to the casting roller 31; one end of the crossflow impeller 41 is rotationally connected to one side of the bottom blowing air chamber through a first rotating shaft, and the other end of the crossflow impeller 41 is rotationally connected to the other side of the bottom blowing air chamber through a second rotating shaft; the rotary drive member is connected to the first rotating shaft of the crossflow impeller; the deflector 51 is parallel to the crossflow impeller; the deflector 51 is arranged in the middle of the connection between the airflow channel and the bottom blowing air chamber 21, and is close to the crossflow impeller, and the two ends of the deflector 51 are respectively transitionally matched with the fixing holes on both sides of the bottom blowing air chamber through the connecting shaft. It can be understood that during installation, since the connecting shaft and the fixing holes on both sides of the bottom blowing air chamber are transitionally matched, the posture of the deflector can be adjusted by rotating the connecting shaft, that is, the deflector is located in the middle of the connection between the airflow channel and the bottom blowing air chamber without blocking the airflow channel.

[0033] The device for improving the uniformity of tobacco supply provided by the embodiment of the present invention has a cross-flow impeller 41 that rotates at high speed under the drive of the rotary drive member, so that the air entering the bottom blowing chamber forms a wind curtain under the action of the cross-flow impeller 41, and when the wind curtain passes through the deflector 51, the air forms a relatively uniform and stable wind curtain in the extension direction of the deflector 51, and then blows toward the air flow channel, so that the air flow channel obtains relatively uniform blowing, so that the tobacco shreds flow toward the wind chamber more evenly, thereby effectively avoiding the phenomenon of tobacco shreds blocking the wind chamber. Moreover, since the unevenness of tobacco shreds will also affect the weight of the cigarette, the present invention can also better avoid the weight of the cigarette being affected.

[0034] Furthermore, the device for improving the uniformity of wire feeding provided by the embodiment of the present invention further comprises an adjusting knob 52, the adjusting knob 52 is connected to the connecting shaft, the adjusting knob is located outside the bottom blowing air chamber, so that the connecting shaft can be easily rotated by the adjusting knob, so that the posture of the deflector can be adjusted. Specifically, the deflector can be an arc-shaped structure with a large middle cross-section and pointed ends, and the cross-section of the deflector can be preferably an elliptical shape.

[0035] like Figure 5As shown, in order to make the air blown toward the air flow channel more uniform and smooth, a plurality of paddles 53 are provided on the deflector 51, and each of the paddles 53 is evenly distributed in the extension direction of the deflector 51; the extension direction of the paddles 53 is perpendicular to the extension direction of the deflector 51.

[0036] Specifically, the paddle 53 is connected to the deflector through an adjusting screw, so that the posture of the paddle on the deflector 51 can be adjusted by adjusting the screw so that the paddle 53 is tilted to the right at a certain angle in the horizontal direction, that is, Figure 5 The airflow passing through the deflector 51 is tilted to the right at a certain angle, so that the airflow passing through the deflector 51 can have a forward component speed while moving upward, that is, the airflow is forced to flow to the upper right. It can be understood that the airflow direction is shown in Figure 6 In the middle, it flows to the upper left, that is, Figure 6 The arrow in the figure shows the airflow direction. This design is because the suction belt in the air chamber absorbs the tobacco and moves forward, and the air flowing out through the deflector 51 should be slightly forward, so that the tobacco moves upward while having a forward component speed, which matches the suction belt and facilitates the tobacco to be absorbed on the suction belt.

[0037] Furthermore, the device for improving wire feeding uniformity provided by an embodiment of the present invention also includes an airflow guide plate, the airflow channel includes a first channel 71 and a second channel 72, the airflow guide plate includes a left guide plate located on the left side of the wire throwing chamber, and a right guide plate 64 located above the wire throwing chamber, the left guide plate includes an upper guide plate and a lower guide plate 63; the first channel 71 is formed between the upper guide plate and the right guide plate, the second channel 72 is formed between the lower guide plate and the lower protective arc plate 32 of the wire throwing chamber, the wire throwing port is a connecting port between the first channel and the wire throwing chamber; one end of the second channel is connected to the first channel, and the other end of the second channel is connected to the bottom blowing air chamber; the deflector is located between the lower protective arc plate and the lower guide plate.

[0038] Specifically, a plurality of first ultrasonic vibration generators 65 are arranged on the upper guide plate, and each of the first ultrasonic vibration generators is evenly distributed in the extension direction of the upper guide plate. With this solution, the first ultrasonic vibration generator 65 is arranged on the upper guide plate through which the tobacco and air flow pass. During normal operation, the first ultrasonic vibration generator drives each upper guide plate to generate ultrasonic vibrations with a small amplitude but a high frequency, so that the contact between the tobacco and the upper guide plate changes from continuous contact to intermittent contact when the tobacco passes through, thereby reducing the friction between the tobacco and the upper guide plate, that is, using the ultrasonic friction reduction effect to reduce the friction between the tobacco and the upper guide plate, thereby effectively reducing the upper guide plate's obstruction to the flow of tobacco, further reducing the possibility of uneven supply of tobacco, and greatly reducing the possibility of tobacco blocking the wind chamber.

[0039] In order to effectively reduce the friction between the right guide plate 64 and the tobacco, further reduce the resistance of the tobacco when flowing through the first channel, and better improve the uniformity of tobacco supply, the right guide plate is provided with a plurality of second ultrasonic vibration generators 66, each of which is evenly distributed in the extension direction of the right guide plate. It can be understood that the function of the second ultrasonic vibration generator is the same as that of the first ultrasonic vibration generator, which will not be repeated here.

[0040] Preferably, the upper guide plate includes a first guide plate 61 and a second guide plate 62 located below the first guide plate, and a plurality of the first ultrasonic vibration generators are evenly distributed in the extension direction of the first guide plate 61. Preferably, a plurality of the first ultrasonic vibration generators are evenly distributed in the extension direction of the second guide plate.

[0041] Specifically, the rotary driving member is a motor 81 .

[0042] The device for improving the uniformity of tobacco supply provided by the embodiment of the present invention, when in use, air enters the bottom blowing air chamber 21 from the air flow inlet, and the crossflow impeller 41 rotates at a high speed driven by the motor. The air forms a wind curtain under the action of the crossflow impeller, and the wind curtain will pass through the deflector 51. Under the action of the deflector 51 and the paddle 53, the air forms a uniform and stable wind curtain in the length direction of the entire air flow channel, that is, the extension direction of the deflector, and flows to the first channel through the second channel. The tobacco is thrown upward under the action of the throwing roller, and the tobacco is uniformly blown under the action of the wind curtain. The tobacco shreds pass through the first channel downward, and there is suction in the wind chamber. Under the combined action of the wind curtain and the suction, the tobacco shreds move upward through the first channel 71. During the movement, the tobacco shreds contact the plates on both sides of the first channel 71, namely the first guide plate 61, the second guide plate 62 and the right guide plate 64, which are respectively provided with the first ultrasonic vibration generator 65 and the second ultrasonic vibration generator 66. After adjustment by the adjustment device, the above three plates form ultrasonic vibrations with smaller amplitude and higher frequency. When the tobacco shreds pass through, the original continuous contact will be changed to intermittent contact, which effectively reduces the flow resistance of the tobacco shreds.

[0043] The condition for the uniform and stable flow of tobacco is that the air volume delivered by the wind curtain and the air volume sucked by the wind chamber are balanced and matched to ensure that the air volume does not affect the movement of tobacco due to leakage or lack. Therefore, the speed of the crossflow impeller should be adjusted first. The device for improving the uniformity of tobacco supply provided by the embodiment of the present invention has the following installation and adjustment methods:

[0044] Matching of wind speed and volume: adjust the speed of the crossflow impeller 41 until there is no wind overflow or wind inhalation when the equipment is idling. At this time, record the speed of the crossflow impeller 41 (or the speed, current, voltage, etc. of the motor) as the initial adjustment value. When the equipment is running with materials, adjust it in combination with the posture adjustment of the deflector 51. The speed of the crossflow impeller is adjusted from the speed near the initial adjustment value, increase or decrease the speed, and observe the movement of the tobacco until the tobacco flow moves upward steadily;

[0045] Attitude adjustment of the deflector: Analyze the airflow direction through three-dimensional fluid mechanics analysis software (such as SolidWorks FlowSimulation). When the deflector is parallel to the middle of the second channel and rotates 8° clockwise, the wind curtain is stable, which is the initial angle; the angle of the paddle 53 on the deflector 51 tilting to the right is 20°. When the equipment is running with material, adjust the speed of the crossflow impeller 41, continuously increase or decrease the angle, and observe the movement state of the tobacco until the tobacco flow moves upward steadily and has a forward component speed matching the suction belt pulley;

[0046] The frequency of each first ultrasonic vibration generator and the second ultrasonic vibration generator is adjusted and matched with each other: the initial vibration frequency is 20000Hz, and the frequency and phase are gradually increased so that the tobacco runs smoothly during the belt running, and the plates on both sides of the first channel do not resonate themselves and do not resonate with the tobacco;

[0047] The amplitude of each first ultrasonic vibration generator and second ultrasonic vibration generator is adjusted and matched with each other: the initial amplitude is 2μm, and the frequency and phase are gradually increased or decreased to ensure smooth operation of the tobacco during belt operation, and the plates on both sides of the first channel do not resonate themselves or with the tobacco.

[0048] The device for improving the uniformity of wire supply provided by the embodiment of the present invention can effectively avoid frequent wire blockage caused by uneven wire supply in existing devices, reduce equipment operating efficiency, and cause problems such as excessive weight of cigarette products, empty cigarettes, and bamboo cigarettes. At the same time, the structure of the present invention is simple, which ensures stability and reliability, can meet the needs of continuous operation of the cigarette making machine, ensure product quality and stable operation of equipment, reduce the labor intensity of maintenance workers and operators, and improve work efficiency.

[0049] The above are only preferred embodiments of the present invention. It should be pointed out that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. Moreover, after reading the contents of the present invention, relevant technical personnel in the field may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.

Claims

1. A device for improving the uniformity of wire feeding, comprising a wind chamber, a bottom blowing air chamber, a wire throwing chamber located above the bottom blowing air chamber, a wire throwing roller located in the wire throwing chamber, and an air flow channel, one end of the air flow channel is connected to the bottom blowing air chamber, the other end of the air flow channel is connected to the wind chamber, the wire throwing chamber has a wire throwing port connected to the air flow channel, characterized in that: It also includes a cross-flow impeller, a deflector extending in the same direction as the cross-flow impeller, and a rotating drive member located outside the bottom blowing air chamber, wherein the cross-flow impeller is arranged on one side of the bottom blowing air chamber close to the air flow channel, and the cross-flow impeller is parallel to the wire throwing roller; one end of the cross-flow impeller is rotatably connected to one side of the bottom blowing air chamber through a first rotating shaft, and the other end of the cross-flow impeller is rotatably connected to the other side of the bottom blowing air chamber through a second rotating shaft; The rotary drive member is connected to the first rotating shaft of the cross-flow impeller; the deflector is parallel to the cross-flow impeller; the deflector is arranged in the middle of the connection between the air flow channel and the bottom blowing air chamber and is close to the cross-flow impeller, and the two ends of the deflector are transitionally matched with the fixing holes on both sides of the bottom blowing air chamber through the connecting shaft respectively; It also includes an adjusting knob, the adjusting knob is connected to the connecting shaft, and the adjusting knob is located outside the bottom blowing air chamber; The deflector is provided with a plurality of paddles, each of which is evenly distributed in the extension direction of the deflector; the extension direction of the paddles is perpendicular to the extension direction of the deflector; It also includes an airflow guide plate, the airflow channel includes a first channel and a second channel, the airflow guide plate includes a left guide plate located on the left side of the wire throwing chamber, and a right guide plate located above the wire throwing chamber, the left guide plate includes an upper guide plate and a lower guide plate; the first channel is formed between the upper guide plate and the right guide plate, the second channel is formed between the lower guide plate and the lower protective arc plate of the wire throwing chamber, the wire throwing port is a connecting port between the first channel and the wire throwing chamber; one end of the second channel is connected to the first channel, and the other end of the second channel is connected to the bottom blowing air chamber; the deflector is located between the lower protective arc plate and the lower guide plate; A plurality of first ultrasonic vibration generators are arranged on the upper guide plate, and each of the first ultrasonic vibration generators is evenly distributed in the extension direction of the upper guide plate; A plurality of second ultrasonic vibration generators are arranged on the right guide plate, and each of the second ultrasonic vibration generators is evenly distributed in the extension direction of the right guide plate.

2. The device for improving wire feeding uniformity according to claim 1, characterized in that: The paddle is connected to the deflector via an adjusting screw.

3. The device for improving wire feeding uniformity according to claim 1, characterized in that: The upper guide plate includes a first guide plate and a second guide plate located below the first guide plate, and a plurality of the first ultrasonic vibration generators are evenly distributed in an extension direction of the first guide plate.

4. The device for improving wire feeding uniformity according to claim 3, characterized in that: A plurality of the first ultrasonic vibration generators are evenly distributed in the extension direction of the second guide plate.

5. The device for improving wire feeding uniformity according to any one of claims 1 to 4, characterized in that: The rotating drive member is a motor.

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