ZJ116A type cigarette making machine set spider hand negative pressure air supply system

Abstract

The utility model discloses a ZJ116A type cigarette making machine set spider hand negative pressure air supply system which comprises a vortex fan, the vortex fan is connected with a spider hand through a negative pressure pipeline, the negative pressure pipeline is provided with a filter, the filter comprises a closed shell, a filter element, a pressure detection piece and a back flushing cleaning unit, the interior of the closed shell is divided into an air inlet cavity and an air outlet cavity, and the air inlet cavity is communicated with the air outlet cavity. The air inlet cavity is connected with the spider hand, and the air outlet cavity is connected with the vortex fan; the filter element is located at the communicating position of the air inlet cavity and the air outlet cavity and used for filtering negative pressure air transmitted by spider hands. The pressure detection piece is used for detecting a negative pressure value in the air inlet cavity; and the back-blowing cleaning unit is connected with the air outlet cavity and is used for blowing and cleaning the filter element. By means of the system, dust and oil in negative pressure air sucked by a spider hand of the cigarette making machine can be separated, smoke dust, smoke powder and oil mist in the negative pressure air suction can be thoroughly filtered, cleanliness of the vortex draught fan is guaranteed, the failure rate of the draught fan is reduced, and the air suction stability of the spider hand is improved.

Description

Technical Field

[0001] This utility model relates to the field of air supply technology for the spider hand of cigarette making machines, specifically to a negative pressure air supply system for the spider hand of a ZJ116A type cigarette making machine. Background Technology

[0002] The negative pressure of the spider-hand vortex blower is supplied to the spider-hand suction claws through the spider-hand rotating arm, gear sleeve, and other parts. Although the spider-hand conveying device cleans the suction claws periodically through the air distribution valve, a small amount of oil mist, dust, and soot inevitably enters the negative pressure channel and reaches the vortex blower when the spider-hand components are rotating at high speed. Over time, the accumulation of oil and soot, due to the very small gap between the impeller and the casing of the spider-hand vortex blower, often causes the negative pressure of the vortex blower to be too low or even jammed, or causes dust accumulation on the impeller, affecting the dynamic balance and thus the stability of the negative pressure. This can easily lead to occasional smoke dropping from the spider-hand during production, affecting equipment operating efficiency and the stability of smoke transfer.

[0003] CN205512317U discloses a novel negative pressure air supply system for the spider hand mechanism of a ZJ112 cigarette making machine. This system eliminates the original vortex fan and connects the negative pressure pipeline of the paper cutting wheel to the negative pressure pipeline of the spider hand mechanism, thereby solving a series of problems caused by oil mist, smoke, and dust entering the vortex fan. However, this method involves significant changes to the negative pressure pipeline, making modification relatively difficult. Therefore, a device is needed that can still solve the problem of dust accumulation on the vortex fan impeller without eliminating the original vortex fan. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a ZJ116A type cigarette making machine spider hand negative pressure air supply system. Without affecting the normal working negative pressure of the spider hand, it achieves the filtration of oil mist, smoke, and soot in the negative pressure air, ensuring the cleanliness of the vortex fan. The stable negative pressure air avoids the phenomenon of low negative pressure or jamming of the vortex fan, and solves the problem of smoke falling from the spider hand.

[0005] Specifically, this utility model provides a negative pressure air supply system for the spider hand of a ZJ116A cigarette making machine, including a vortex blower connected to the spider hand via a negative pressure pipeline. A filter is installed on the negative pressure pipeline, and the filter includes:

[0006] The sealed housing is divided into an air inlet chamber and an air outlet chamber. The air inlet chamber is connected to the spider arm, and the air outlet chamber is connected to the vortex fan. The inner wall of the sealed housing is provided with an anti-stick coating.

[0007] The filter element, located at the connection between the air inlet and outlet chambers, is used to filter the negative pressure gas transmitted by the spider hand; the filter element includes: a filter material composed of an activated carbon fiber layer and a non-woven fabric layer, wherein the non-woven fabric layer is wrapped around the activated carbon fiber layer;

[0008] A pressure detection element is installed on the sealed housing and is used to detect the negative pressure value in the air intake chamber;

[0009] The backflush cleaning unit, connected to the air outlet chamber, is used to clean the filter element by blowing air.

[0010] The sealed housing includes:

[0011] Upper casing;

[0012] The lower housing is provided with a baffle between the upper housing and the lower housing, and the upper housing, the lower housing and the baffle are connected by a flange structure.

[0013] Furthermore, the baffle is provided with a plurality of filter ports, and the filter element is threadedly connected to the filter ports.

[0014] Furthermore, the filter element is in the shape of a straight cylindrical tube, and it further includes:

[0015] The top cap is threaded to the filter port;

[0016] The lower end cap is used to seal the lower end of the filter material.

[0017] Furthermore, three filter elements are provided, arranged in an equilateral triangle, with the center distance between two adjacent filter elements being 1.25 times the diameter of the two filter elements.

[0018] Furthermore, a sealing ring is provided at the connection between the baffle and the lower and upper housings.

[0019] Furthermore, the bottom of the lower housing is provided with a dust outlet, and the dust outlet is provided with a removable sealing component.

[0020] Furthermore, a detachable air distribution hood is provided inside the air intake chamber, which covers the filter element. The air distribution hood has several through holes on its side and a closed bottom plate. Negative pressure gas comes into contact with the filter element after passing through the through holes.

[0021] Furthermore, the closed bottom plate has a conical groove structure.

[0022] Working principle:

[0023] The upper air outlet chamber of the sealed housing is connected to the vortex fan, and the lower air inlet chamber is connected to the spider arm. When the vortex fan is working, it generates negative pressure. The negative pressure gas enters the air inlet chamber from the spider arm and then gathers into the filter element inside the air inlet chamber. Large particles such as soot and dust are filtered by the non-woven fabric layer and blocked outside the filter element. Some oil mist is adsorbed by the non-woven fabric, and some oil mist passes through the non-woven fabric layer and enters the activated carbon fiber layer. The activated carbon fiber layer has a highly developed microporous structure. When oil molecules come into contact with the activated carbon fibers, due to the van der Waals forces between molecules, the oil molecules are adsorbed into the micropores. This can adsorb the oil mist in the negative pressure air and prevent the oil mist from entering the vortex fan and forming oil stains at the fan impeller.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] (1) The ZJ116A type cigarette machine spider hand negative pressure air supply system provided by this utility model can separate the dust and oil in the negative pressure air sucked in by the cigarette machine spider hand, and filter the smoke, dust and oil mist in the negative pressure suction more thoroughly, ensuring the cleanliness of the vortex fan, reducing the failure rate of the fan, and improving the stability of the spider hand suction.

[0026] (2) The three filter chambers are arranged in an equilateral triangle to ensure that there is enough space for airflow between the two filter elements, thereby ensuring the stability of the negative pressure and preventing the problem of "spider hand" cigarette falling.

[0027] (3) The filter element can be cleaned by backflushing with high-pressure gas from the backflushing cleaning unit, which can improve the filtration effect and service life of the filter element. The backflushing cleaning time can be determined by regular cleaning or by the negative pressure value detected by the pressure gauge, which can solve the problem of dust and oil adhesion affecting the stability of negative pressure. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the spider-hand negative pressure air supply system of the ZJ116A cigarette making machine unit in Example 1;

[0029] Figure 2 This is a schematic diagram of the filter structure in Example 1;

[0030] Figure 3 This is an exploded view of the filter in Example 1;

[0031] Figure 4 This is a cross-sectional schematic diagram of the filter in Example 1;

[0032] Figure 5 This is an exploded view of the filter in Example 2;

[0033] Figure 6 This is a schematic diagram showing the usage status of the filter in Example 2;

[0034] Figure 7 for Figure 6 Enlarged view of part A in the image;

[0035] Figure 8 This is a schematic diagram of the filter's usage state during backflushing cleaning in Example 2.

[0036] Figure label:

[0037] 1-Spider hand; 2-Vortex blower; 3-Filter; 31a-Upper housing; 31b-Lower housing; 32-Filter element; 321-Non-woven fabric layer; 322-Activated carbon fiber layer; 323-Upper end cover; 324-Clamping hoop; 33-Baffle; 331-Filter port; 332-Handle; 34-Sealing ring; 35-Dust outlet; 36-Air distribution hood; 361-Sealed bottom plate; 4-Pressure gauge; 51-Backflush cleaning blower; 52-Backflush port. Detailed Implementation

[0038] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0039] Example 1

[0040] like Figure 1 As shown, this embodiment provides a negative pressure air supply system for the spider hand of a ZJ116A type cigarette making unit, including a vortex fan 2, a negative pressure pipeline, and a filter 3. The vortex fan 2 is connected to the spider hand 1 via the negative pressure pipeline, providing only negative pressure for the spider hand 1 to draw in smoke. The filter 3 is installed on the negative pressure pipeline to filter the negative pressure air, thus solving the problem that a small amount of oil mist, smoke, and dust enters the vortex fan 2 from the negative pressure pipeline when the spider hand 1 operates at high speed.

[0041] Specifically, such as Figure 2-4 As shown, the filter 3 includes a sealed housing and a filter element 32. The sealed housing 1 includes an upper housing 31a and a lower housing 31b. A baffle 33 is provided between the upper housing 31a and the lower housing 31b. The upper housing 31a, the lower housing 31b, and the outer edges of the baffle 33 are connected by a flange structure, and the baffle 33 and the rubber sealing ring 34 are tightly pressed in the middle to form a sealed housing, thereby improving its airtightness, ensuring the stability of the negative pressure, and thus improving the smoothness of the suction of the spider hand 1. The sealed housing is cylindrical in shape, with the axis set vertically. The housing material is SUS304 stainless steel, and it is polished inside and out. The inner wall is provided with an anti-stick coating to effectively prevent smoke, dust, and oil mist from adhering to the inner wall of the housing. The sealed housing has a diameter of 500mm, a height of 1200mm, and a wall thickness of 0.5mm. Four support legs are provided on the lower outer side of the lower housing 31b.

[0042] The upper part of the baffle 33 is the air outlet chamber, and the lower part is the air inlet chamber. The air outlet chamber is connected to the vortex blower 2, and the air inlet chamber is connected to the spider arm 1. The filter element 32 is installed in the air inlet chamber. When the vortex blower 2 is working, air enters the air inlet chamber of the filter 3 from the spider arm 1, is filtered by the filter element 32, and then enters the vortex blower 2. A pressure gauge 4 is installed on the side of the air inlet chamber to monitor the negative pressure value on the side of the air inlet chamber. This negative pressure value is the working negative pressure value of the spider arm 1.

[0043] The baffle 33 has three filter ports 331 arranged in an equilateral triangle. Three filter elements 32 are installed on the three filter ports 331 respectively. Each filter element 32 is a straight cylindrical shape with an outer diameter of 180mm, an inner diameter of 130mm, and a length of 400mm. The center-to-center distance between two adjacent filter elements 32 is 1.25 times their diameters to ensure sufficient airflow space between them. This facilitates airflow through the filter elements 32 from all directions, stabilizes the internal air pressure, and improves the smoothness of the suction of the spider-handled air intake. Two handles 332 are welded to the baffle 33 for easy disassembly and assembly of the filter elements 32.

[0044] Each filter element 32 includes: an upper end cap 323, a lower end cap, and filter media. A galvanized stainless steel woven mesh cylinder is installed between the upper end cap 323 and the lower end cap, located inside the filter media to support it. Two clamps 324 are located on the outside of the filter media to secure it, positioned at 1 / 3 and 2 / 3 of the filter element 32, respectively. The upper end cap 323 is threaded to the filter port 331. The lower end cap has no holes and can seal the bottom of the filter element 32, allowing air to enter only from the side of the filter element 32. The filter media consists of a PET non-woven fabric layer and an activated carbon fiber layer. The PET non-woven fabric layer is placed outside the activated carbon fiber layer, with a thickness of 0.2 mm. The activated carbon fiber layer has a thickness of 5 mm. The PET non-woven fabric layer is oil-resistant and is used to filter large particulate impurities such as smoke and dust, as well as block large oil droplets in oil mist, reducing the turbidity of the negative pressure air. Some small oil mist particles can easily enter the activated carbon fiber layer and be adsorbed and filtered by the activated carbon fibers, thus achieving stratified filtration of oil mist, smoke, and dust. The PET non-woven fabric layer also has good rigidity to fix the activated carbon fiber layer. To increase the contact area between the filtered negative pressure air and the activated carbon composite filter element and increase the filter element flow rate, both the activated carbon composite filter media and the PET non-woven fabric have a "◇" shaped pleated structure with a pleat height of 25 mm.

[0045] The negative pressure air supply system also includes a backflushing cleaning unit, which includes a backflushing cleaning fan 51. The backflushing cleaning fan 51 is connected to the air outlet chamber at the top of the sealed housing via a cleaning pipeline. A valve is installed on the cleaning pipeline, and a dust outlet 35 is provided at the bottom of the lower housing 31b. The dust outlet is equipped with a removable sealing element (bolt). The bolt can seal the dust outlet 35, and opening the bolt can open the dust outlet 35 to clean impurities inside the housing. The backflushing cleaning unit can perform backflushing cleaning on the filter element 32, and the backflushed smoke and dust can be cleaned out from the dust outlet 35.

[0046] Example 2

[0047] like Figure 5 As shown, due to the suction effect of the vortex fan 2, the filter element 32 near the air inlet of the lower housing 31b will accumulate more smoke and dust than other parts, which will affect the service life of the filter element 32. Therefore, a removable air distribution hood 36 is installed in the lower air inlet chamber. The air distribution hood 36 covers the filter element 32 and has several through holes on its side to allow air to pass through. The bottom surface is a closed bottom plate 361 with a conical groove structure. The conical structure is used to collect dust during backflushing cleaning, so as to concentrate and clean the smoke and dust.

[0048] Specifically, such as Figure 6-7 As shown, during use, air enters the intake chamber through the spider arm 1, flows upward, and enters the air distribution hood 36 through the through-holes around the hood 36. Finally, it enters the filter element 32 from all sides. This air distribution method ensures that the air is applied to the filter element 32 as evenly as possible, thus solving the problem of uneven adhesion of smoke and dust. This helps to extend the service life of the filter element 32.

[0049] like Figure 8 As shown, during backwashing, the clean air blown out by the backflushing cleaning fan 51 blows the dust and soot adhering to the surface of the filter element 32 off the filter element 32. Most of the dust and soot are collected in the air distribution hood 36, and a portion is blown out from the through holes on the side of the air distribution hood 36, enters the air intake chamber, and is finally discharged from the dust outlet 35 at the bottom of the lower housing 34b.

[0050] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art to which this invention pertains can make various simple deductions, modifications, or substitutions based on the concept of this invention.

Claims

1. A negative pressure air supply system for the spider hand of a ZJ116A type cigarette making machine, comprising a vortex blower (2), wherein the vortex blower (2) is connected to the spider hand (1) via a negative pressure pipeline, characterized in that, The negative pressure pipeline is equipped with a filter (3), and the filter (3) includes: A sealed housing is divided into an air inlet chamber and an air outlet chamber. The air inlet chamber is connected to the spider hand (1), and the air outlet chamber is connected to the vortex fan (2). The inner wall of the sealed housing is provided with an anti-stick coating. The filter element (32) is located at the connection between the air inlet chamber and the air outlet chamber and is used to filter the negative pressure gas transmitted by the spider hand (1). The filter element (32) includes a filter material composed of an activated carbon fiber layer and a non-woven fabric layer, wherein the non-woven fabric layer (321) is wrapped around the activated carbon fiber layer (322). A pressure detection element is installed on the sealed housing and is used to detect the negative pressure value in the air intake chamber; The backflush cleaning unit is connected to the air outlet chamber and is used to blow air to clean the filter element (32); The sealed housing includes: Upper shell (31a); The lower housing (31b) is provided with a baffle (33) between the upper housing (31a) and the lower housing (31b). The upper housing (31a), the lower housing (31b) and the baffle (33) are connected by a flange structure.

2. The ZJ116A type cigarette making machine spider hand negative pressure air supply system as described in claim 1, characterized in that, The baffle (33) is provided with a plurality of filter ports (331), and the filter element (32) is threadedly connected to the filter ports (331).

3. The ZJ116A cigarette making machine spider-hand negative pressure air supply system as described in claim 1, characterized in that, The filter element (32) is in the shape of a straight cylindrical tube, and further includes: The upper end cap (323) is threadedly connected to the filter port (331); The lower end cap is used to seal the lower end of the filter material.

4. The ZJ116A cigarette making machine spider-hand negative pressure air supply system as described in any one of claims 1-3, characterized in that, The filter element (32) is provided in three parts, and the three filter elements (32) are arranged in an equilateral triangle. The center distance between two adjacent filter elements (32) is 1.25 times the diameter of the two filter elements (32).

5. The ZJ116A type cigarette making machine spider hand negative pressure air supply system as described in claim 1, characterized in that, A sealing ring (34) is provided at the connection between the baffle (33) and the lower housing (31b) and the upper housing (31a).

6. The ZJ116A cigarette making machine spider-hand negative pressure air supply system as described in claim 1, characterized in that, The bottom of the lower housing (31b) is provided with a dust outlet (35), and the dust outlet (35) is provided with a removable sealing component.

7. The ZJ116A type cigarette making machine spider hand negative pressure air supply system as described in claim 1, characterized in that, The air intake chamber is detachably provided with an air distribution hood (36), which covers the filter element (32). The air distribution hood (36) has several through holes on its side and a closed bottom plate (361) on its bottom surface. The negative pressure gas comes into contact with the filter element (32) after passing through the through holes.

8. The ZJ116A type cigarette making machine spider hand negative pressure air supply system as described in claim 7, characterized in that, The closed bottom plate (361) has a conical groove structure.

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