Cigarette making wheel

Abstract

The present application belongs to the technical field of cigarette manufacturing equipment, and discloses a cigarette equipment suction forming wheel, which comprises a first supporting wheel, a second supporting wheel and a plurality of blades, the first supporting wheel is provided with a first driving hole in the axial direction, the second supporting wheel is provided with a second driving hole in the axial direction, the second driving hole is aligned with the first driving hole, the second supporting wheel is coaxially arranged with the first supporting wheel, one side of the plurality of blades is arranged on one side of the first supporting wheel in the radial direction of the first supporting wheel, the other side of the plurality of blades is arranged on one side of the second supporting wheel in the radial direction of the second supporting wheel, an air duct is formed between two adjacent blades, one end of the blade away from the first driving hole forms a suction slot with the first supporting wheel and the second supporting wheel, and the suction slot is communicated with the air duct. The cigarette equipment suction forming wheel changes the suction forming process from linear motion of the net belt suction forming to rotary wheel suction forming, and the number of cigarette suction channels can be increased by increasing the number of the cigarette equipment suction forming wheels.

Description

Technical Field

[0001] This invention relates to the field of cigarette manufacturing equipment technology, and in particular to a cigarette-feeding forming wheel. Background Technology

[0002] Tobacco bundle forming technology is a key technology in the development of cigarette equipment. The most critical component of the tobacco forming equipment is the tobacco forming mesh belt. Tobacco is adsorbed onto the tobacco forming mesh belt by negative pressure wind to form tobacco strips. The tobacco strips are then conveyed forward in a straight line by the movement of the tobacco forming mesh belt wheel, and the weight of the tobacco strips is evenly controlled by the leveling device. Then, the tobacco strips are sent to the cigarette gun inlet and wrapped into continuous tobacco strips by cigarette paper.

[0003] Because mesh belt suction forming requires complex airflow and feeding system designs, the complexity of the equipment increases exponentially with the number of channels. This leads to a geometric increase in the difficulty of designing, manufacturing, and maintaining the equipment, as well as a significantly higher price. A single-channel cigarette machine has approximately 3,000 parts, while a double-channel cigarette machine has approximately 5,000 parts. This demonstrates that increasing the number of channels significantly increases the design and manufacturing difficulty of cigarette equipment, and the price increases exponentially. Therefore, currently, the four-channel cigarette machine based on the mesh belt suction forming principle represents the technical and economic limit for increasing the number of channels. Summary of the Invention

[0004] The purpose of this invention is to provide a cigarette-feeding forming wheel that changes the cigarette-feeding forming process from a linear mesh belt to a rotary wheel. By increasing the number of the forming wheels, the number of cigarette-feeding channels can be increased, reaching the limit of the cigarette-feeding equipment's rotation length.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A cigarette-making equipment suction and forming wheel, comprising:

[0007] A first support wheel, wherein the first support wheel has a first drive hole along the axial direction;

[0008] The second support wheel has a second drive hole along the axial direction that aligns with the first drive hole, and the second support wheel is coaxially arranged with the first support wheel.

[0009] A plurality of blades are provided, with one side of the blades arranged radially along the first support wheel and the other side of the blades arranged radially along the second support wheel. An air duct is formed between two adjacent blades. The end of the blade facing away from the first drive hole forms a wire suction groove with the first support wheel and the second support wheel. The wire suction groove communicates with the air duct.

[0010] Optionally, the end of the blade facing away from the first drive hole is provided with an arc-shaped portion.

[0011] Optionally, the arc-shaped portion has a semi-circular structure.

[0012] Optionally, a plurality of support rings are provided on the side of the first support wheel near the second support wheel. The support rings are distributed radially along the first support wheel. A plurality of positioning grooves are formed on the support rings in the circumferential direction. The blade passes through the positioning grooves. The end of the support ring opposite to the first support wheel is connected to the second support wheel.

[0013] Optionally, the first support wheel has a plurality of first annular grooves on the side near the second support wheel, and the first annular grooves are aligned with the support ring; the second support wheel has a plurality of second annular grooves on the side near the first support wheel, which are aligned with the first annular grooves, and the two ends of the support ring extend into the first annular grooves and the second annular grooves, respectively.

[0014] Optionally, the first driving hole has a first limiting groove, and the second driving hole has a second limiting groove that aligns with the first limiting groove.

[0015] Optionally, a wire-absorbing mesh is provided at the bottom of the wire-absorbing groove.

[0016] Optionally, the thickness of the blade gradually decreases from the end of the blade near the first driving hole to the end of the blade near the wire suction groove.

[0017] Optionally, a plurality of the blades are evenly distributed along the axial direction of the first support wheel on one side of the first support wheel.

[0018] The beneficial effects of this invention are:

[0019] The cigarette forming device provided by this invention has a suction-forming wheel installed inside the suction-forming cigarette device. The rotating end of the driving component inside the suction-forming cigarette device passes through the first driving hole and the second driving hole, thereby driving the first support wheel and the second driving wheel to rotate. The negative pressure suction channel, the low pressure positive pressure blowing channel, and the high pressure positive pressure blowing channel inside the suction-forming cigarette device are distributed sequentially along the rotation direction of the first support wheel and the second support wheel. During rotation, the air duct is sequentially connected to the negative pressure suction channel, the low pressure positive pressure blowing channel, and the high pressure positive pressure blowing channel, and the air duct is connected to the negative pressure suction channel in sequence. The incoming tobacco shreds are drawn into the suction groove and shaped. Then, the weight of the tobacco shreds is precisely controlled by a leveling device within the tobacco-forming cigarette equipment, forming a uniformly distributed tobacco bundle. At the critical point between the negative pressure suction channel and the low-pressure positive pressure blowing channel, the incoming tobacco shreds are thrown out of the suction groove under the action of inertia, low-pressure positive pressure air, and the tobacco-removing knife. The incoming tobacco shreds are then fed into the cigarette gun, preparing for cigarette rolling. After the incoming tobacco shreds have been fed, the air duct connected to the suction groove passes through the high-pressure positive pressure blowing channel. The high-pressure positive pressure blower blows off any remaining tobacco shreds from the suction groove, preventing clogging of the air duct. This cigarette equipment's tobacco-forming wheel changes the tobacco-forming process from a linear mesh belt suction to a rotary wheel suction. Furthermore, by increasing the number of suction forming wheels, the number of tobacco-forming channels can be increased, allowing the number of tobacco-forming channels to be increased to the maximum rotational length of the cigarette equipment. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the cigarette-feeding forming wheel provided by the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the first support wheel in this invention;

[0023] Figure 3 This is a schematic diagram of the structure of the second support wheel in this invention;

[0024] Figure 4 This is a schematic diagram of the structure when the blade and the support ring are assembled in this invention;

[0025] Figure 5 This is a schematic diagram of the blade structure in this invention;

[0026] Figure 6This is a diagram showing the distribution of the negative pressure suction channel, low-pressure positive pressure blowing channel, and high-pressure positive pressure blowing channel within the cigarette forming equipment.

[0027] Figure 7 This is a schematic diagram of the operation of the cigarette-suction forming wheel provided by the present invention.

[0028] In the picture:

[0029] 10. Negative pressure suction channel; 20. Low-pressure positive pressure blowing channel; 30. High-pressure positive pressure blowing channel; 40. Leveling device; 50. Silk-taking knife; 60. Tobacco gun;

[0030] 100, First support wheel; 110, First drive hole; 111, First limiting groove; 120, First annular groove; 200, Second support wheel; 210, Second drive hole; 211, Second limiting groove; 220, Second annular groove; 300, Blade; 310, Air duct; 320, Wire suction groove; 330, Arc-shaped part; 340, Support ring. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0032] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0035] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0036] like Figures 1 to 7 As shown, the present invention provides a cigarette-feeding forming wheel, including a first support wheel 100, a second support wheel 200, and a plurality of blades 300. The first support wheel 100 has a first driving hole 110 along its axial direction; the second support wheel 200 has a second driving hole 210 aligned with the first driving hole 110 along its axial direction, and the second support wheel 200 is coaxially arranged with the first support wheel 100; one side of each of the plurality of blades 300 is radially disposed on one side of the first support wheel 100, and the other side of each of the plurality of blades 300 is radially disposed on one side of the second support wheel 200; an air duct 310 is formed between two adjacent blades 300; one end of each blade 300 facing away from the first driving hole 110 forms a suction groove 320 with the first support wheel 100 and the second support wheel 200, and the suction groove 320 communicates with the air duct 310.

[0037] The cigarette forming device provided by this invention has a suction forming wheel installed inside the suction forming cigarette device. The rotating end of the driving component inside the suction forming cigarette device passes through the first driving hole 110 and the second driving hole 210, thereby driving the first support wheel 100 and the second driving wheel to rotate. The negative pressure suction channel 10, the low pressure positive pressure blowing channel 20, and the high pressure positive pressure blowing channel 30 inside the suction forming cigarette device are sequentially distributed along the rotation direction of the first support wheel 100 and the second support wheel 200. During rotation, the air duct 310 is sequentially connected to the negative pressure suction channel 10, the low pressure positive pressure blowing channel 20, and the high pressure positive pressure blowing channel 30. The incoming tobacco shreds are drawn into the suction groove 320 and shaped. Then, the weight of the tobacco shreds is precisely controlled by the leveling device 40 in the tobacco shred forming cigarette rolling equipment to form a tobacco bundle with a uniform flow rate. Then, at the critical point between the negative pressure suction channel 10 and the low pressure positive pressure blowing channel 20, the incoming tobacco shreds are thrown out of the suction groove 320 under the action of inertia, low pressure positive pressure air and the tobacco taking knife 50. The incoming tobacco shreds are sent into the cigarette gun 60 to prepare for cigarette rolling. Then, the air duct 310 connected to the suction groove 320 after the incoming tobacco shreds have been fed passes through the high pressure positive pressure blowing channel 30. The high pressure positive pressure blower blows off the tobacco shreds remaining in the suction groove 320 to prevent the tobacco shreds from clogging the air duct 310. The cigarette equipment's suction forming wheel changes the suction forming process from a linear mesh belt suction forming to a rotary wheel suction forming. Furthermore, by increasing the number of suction forming wheels in the cigarette equipment, the number of cigarette suction channels can be increased, allowing the number of cigarette suction channels to be increased to the limit length of the cigarette equipment's rotation.

[0038] In some embodiments, a plurality of support rings 340 are provided on the side of the first support wheel 100 near the second support wheel 200. The support rings 340 are radially distributed along the first support wheel 100. A plurality of positioning grooves are provided on the support rings 340 in the circumferential direction. The blade 300 passes through the positioning grooves. The end of the support ring 340 away from the first support wheel 100 is connected to the second support wheel 200. The support rings 340 are used to support the blade 300 between the first support wheel 100 and the second support wheel 200 to ensure the stability of the blade 300.

[0039] The first support wheel 100 has a plurality of first annular grooves 120 on the side near the second support wheel 200, and the first annular grooves 120 are aligned with the support ring 340. The second support wheel 200 has a plurality of second annular grooves 220 on the side near the first support wheel 100, which are aligned with the first annular grooves 120. Both ends of the support ring 340 extend into the first annular grooves 120 and the second annular grooves 220 respectively. Through the above structure, the first annular grooves 120 and the second annular grooves 220 support and limit the support ring 340, which can ensure the structural stability of the support ring 340.

[0040] In some embodiments, the first drive hole 110 is provided with a first limiting groove 111, and the second drive hole 210 is provided with a second limiting groove 211 that aligns with the first limiting groove 111. By providing the first limiting groove 111 and the second limiting groove 211, the rotating end of the drive member is engaged in the first limiting groove 111 and the second limiting groove 211, thereby preventing circumferential slippage.

[0041] In some embodiments, the end of the blade 300 facing away from the first driving hole 110 is provided with an arc-shaped portion 330, making the suction groove 320 an annular groove to ensure the suction forming effect. For example, the arc-shaped portion 330 has a semi-circular structure. To ensure the structural strength of the blade 300, the thickness of the blade 300 gradually decreases from the end of the blade 300 near the first driving hole 110 to the end of the blade 300 near the suction groove 320. Several blades 300 are evenly distributed along the axial direction of the first support wheel 100 on one side of the first support wheel 100, making the structure of each air duct 310 uniform.

[0042] To prevent tobacco from entering the air duct 310 and causing blockage, a tobacco suction screen is installed at the bottom of the tobacco suction groove 320. The mesh size of the tobacco suction screen is 10-90 mesh, and the surface in contact with the tobacco is appropriately polished to make it easier to pick up the tobacco.

[0043] The manufacturing method of the cigarette-making equipment suction forming wheel provided by the present invention is as follows:

[0044] Using titanium-aluminum alloy, 265 blades 300 are manufactured by hot forging. Three fixing plates are forged and brazed to form support rings 340. The diameters of the support rings 340 are 180mm, 260mm and 340mm respectively. After being polished smooth, 265 positioning grooves are uniformly cut by laser to fit the blades 300.

[0045] The blade 300 and the support ring 340 are spliced ​​into a radial circle with a hollow circumference diameter of 100mm. Then, the contact points are brazed together to form a hollow radial ring, and the weld points are polished smooth.

[0046] Molds are made using abrasive steel to process the first support wheel 100 and the second support wheel 200. Then, 7075-T651 aluminum alloy is heated and melted to 750±10℃. A hollow radiating ring and a wire-absorbing mesh formed by blades 300 and support rings 340 are placed in the mold, and the initial blank of the wire-absorbing forming wheel of the cigarette equipment is cast. At this temperature, a strong thermal bond is formed at the contact points of blades 300, wire-absorbing mesh and aluminum alloy. The initial blank of the wire-absorbing forming wheel of the cigarette equipment is then precisely polished to ensure that there is no air leakage between the blades 300 between the first support wheel 100 and the second support wheel 200.

[0047] The external shape of the cigarette-feeding forming wheel and the feeding groove 320 are precisely ground. The first driving hole 110 is cut into the first support wheel 100 and the second driving hole 210 is cut into the second support wheel 200.

[0048] The cigarette-making equipment suction forming wheel provided by this invention has the following advantages:

[0049] Overcoming the limitations of traditional mesh belt tobacco suction forming cigarette machines in terms of increasing cigarette channels, this method increases the number of cigarette channels by increasing the number of tobacco suction forming wheels. It also reduces the design and manufacturing complexity of cigarette machines. Since the wheel-type tobacco suction forming machine has only one key operating component, the tobacco suction forming wheel, the equipment structure is simpler. Compared to mesh belt tobacco suction machines, it significantly reduces the complexity of the equipment and the number of operating parts, thus lowering the design and manufacturing difficulty. Furthermore, it improves the stability of cigarette quality. The suction groove 320 and the suction net of the wheel-type tobacco suction forming machine move synchronously and fixedly with the wheel, eliminating frictional resistance during tobacco transport. This solves the problem of friction in the movement of tobacco bundles in mesh belt tobacco suction forming machines, allowing for further improvement in cigarette weight control and machine speed. Maintenance is also easier. During the tobacco suction forming process, there is almost no friction between the tobacco and the wheel body, solving the quality problems caused by friction between tobacco and the equipment in traditional cigarette machines. The suction net uses a wear-resistant metal mesh, significantly reducing the frequency of replacement and maintenance.

[0050] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A cigarette-making equipment suction and forming wheel, characterized in that, include: A first support wheel, wherein the first support wheel has a first drive hole along the axial direction; The second support wheel has a second drive hole along the axial direction that aligns with the first drive hole, and the second support wheel is coaxially arranged with the first support wheel. A plurality of blades are provided, with one side of each blade arranged radially along the first support wheel and the other side of each blade arranged radially along the second support wheel. An air duct is formed between two adjacent blades. The end of each blade away from the first drive hole forms a suction groove with the first and second support wheels. The suction groove is connected to the air duct. The air duct is connected to a negative pressure suction channel, a low pressure positive pressure blowing channel, and a high pressure positive pressure blowing channel, which are sequentially distributed along the rotation direction of the first and second support wheels. The negative pressure suction channel draws the raw tobacco into the suction groove and shapes it. The low pressure positive pressure blowing channel throws the raw tobacco out of the suction groove, and the high pressure positive pressure blowing channel blows off any remaining tobacco in the suction groove. The first support wheel has a plurality of support rings on the side near the second support wheel. The support rings are radially distributed along the first support wheel. The support rings have a plurality of positioning grooves circumferentially formed. The blade passes through the positioning grooves. The end of the support ring opposite to the first support wheel is connected to the second support wheel. The first support wheel has a plurality of first annular grooves on the side near the second support wheel, and the first annular grooves are aligned with the support ring; the second support wheel has a plurality of second annular grooves on the side near the first support wheel, which are aligned with the first annular grooves, and the two ends of the support ring extend into the first annular grooves and the second annular grooves, respectively.

2. The cigarette-making equipment suction and forming wheel according to claim 1, characterized in that, The blade has an arc-shaped portion at the end opposite to the first drive hole.

3. The cigarette-making equipment suction forming wheel according to claim 2, characterized in that, The arc-shaped part has a semi-circular structure.

4. The cigarette-making equipment suction and forming wheel according to claim 1, characterized in that, The first driving hole has a first limiting groove, and the second driving hole has a second limiting groove that is aligned with the first limiting groove.

5. The cigarette-making equipment suction and forming wheel according to claim 1, characterized in that, The bottom of the wire suction groove is provided with a wire suction mesh.

6. The cigarette-making equipment suction and forming wheel according to claim 1, characterized in that, The thickness of the blade gradually decreases from the end of the blade near the first driving hole to the end of the blade near the wire suction groove.

7. The cigarette-making equipment suction and forming wheel according to any one of claims 1-6, characterized in that, Several blades are evenly distributed along the circumference of the first support wheel on one side of the first support wheel.

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