Cigarette making mechanism for cigarette making machine

Abstract

The utility model relates to a cigarette making mechanism for a cigarette making machine, which comprises a large pressing plate and a cigarette gun bottom plate, the cigarette gun bottom plate is provided with a semicircular working surface, the large pressing plate comprises an arc-shaped working surface and a cigarette paper containing groove, and the arc-shaped working surface and the semicircular working surface of the cigarette gun bottom plate jointly form a round rolling forming channel of cigarettes. The first side of the arc-shaped working face is connected with the side wall of the cigarette paper containing groove, the side, used for making contact with the non-glued paper edge of cigarette paper, in the round rolling forming channel is the non-glued side, a continuous arc face is arranged between the first side and the second side of the arc-shaped working face, and the central angle theta corresponding to the arc-shaped working face is larger than 0.5 pi and smaller than 0.75 pi. The first side of the arc-shaped working face is located on the side, close to the non-gluing side, of the vertex of the round rolling forming channel, and the central angle alpha between the first side of the arc-shaped working face and the vertex of the round rolling forming channel is larger than 0 and smaller than 0.25 pi.

Description

Technical Field

[0001] The utility model relates to the field of tobacco machinery, in particular to a cigarette rolling mechanism used in a cigarette rolling machine. Background Art

[0002] The rolling mechanism of the conventional cigarette 3 is shown in the attached figure Figure 3 As shown, it is mainly composed of components such as a large pressing plate 1, a cigarette gun bottom plate 2 and a cloth belt 4. The working surface of the large pressing plate 1 and the working surface of the cigarette gun bottom plate 2 together form a circular rolling and forming channel for the cigarette 3. The circular rolling and forming channel compresses the tobacco bundle 301 so that the tobacco bundle 301 meets the specified size, and the cigarette paper 302 is rolled and pressed on the tobacco bundle 301 to form the cigarette 3.

[0003] The conventional large pressing plate 1 is shown in the attached figure Figure 4 As shown, a cigarette paper receiving groove 102, a cloth belt groove 103 and a conventional working surface 105 are provided. The conventional working surface 105 is provided on one side of the cigarette paper receiving groove 102, and the cloth belt groove 103 is provided on the conventional working surface 105. The extending direction of the cloth belt groove 103 is inclined to the extending direction of the cigarette paper receiving groove 102. When the cigarette 3 is located in the circular rolling molding channel, as shown in the accompanying drawings, Figure 5 As shown, the un-glued paper edge 3021 is located in the cigarette paper receiving groove 102, and the glued paper edge 3022 is rolled and pressed by the conventional working surface 105, and overlaps with the un-glued paper edge 3021 and is bonded to the outer peripheral surface of the tobacco bundle 301. Figure 6 As shown, the distance between the conventional working surface 105 and the side adjacent to the cigarette paper containing groove 102 and the cloth tape 4 is relatively close. When the conventional working surface 105 rolls the glued paper edge 3022, the glue 5 on the glued paper edge 3022 overflows. Although the conventional working surface 105 can block the glue 5 to a certain extent, the glue 5 will still flow along the outer peripheral surface of the cigarette paper 302 to the cloth tape. Therefore, the cloth tape groove 103 is provided to separate the glued paper edge 3022 and the cloth tape 4, so that the cloth tape 4 is away from the glued paper edge 3022, thereby preventing the glue 5 from flowing to the cloth tape 4 and causing damage to the cloth tape 4.

[0004] However, in actual production, the effect of the cloth tape groove 103 is very limited, and it can only reduce the adhesion of the glue 5 to the cloth tape 4 to a certain extent, while the cloth tape groove 103 will cause a gap to appear on the continuous working surface of the traditional working surface 105. On the one hand, once the glue 5 flows to the gap, due to the lack of the obstruction of the traditional working surface 105, the glue 5 will continue to flow along the outer peripheral surface of the cigarette paper 302, and finally flow to the cloth tape 4; on the other hand, the gap cannot impose constraints and restrictions on the tobacco bundle 301. The tobacco bundle 301 will expand at the gap due to its own elasticity, causing the paper edge of the cigarette paper 302 to move, resulting in uncontrollable fluctuations in the circumference of the cigarette and fluctuating standard deviations, making it difficult for the production of cigarettes to meet the requirement of a single-piece qualified rate of 91.5%. Among them, the circumference of the cigarette refers to the circumference of the cross-section of the cigarette. When the circumference of the cigarette fluctuates, it will not only affect the quality of the cigarette 3, but also cause a large amount of waste of raw materials. Utility Model Content

[0005] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a cigarette rolling mechanism for a cigarette making machine, which can prevent the paper edge of the cigarette paper from floating and improve the stability of the circumference of the cigarette.

[0006] To achieve the above-mentioned purpose, the utility model provides a cigarette rolling mechanism for a cigarette making machine, comprising a large pressing plate and a cigarette gun bottom plate, the cigarette gun bottom plate is provided with a semicircular working surface, the large pressing plate comprises an arcuate working surface and a cigarette paper receiving groove, the arcuate working surface and the semicircular working surface of the cigarette gun bottom plate jointly form a circular rolling and molding channel for cigarettes, the radius of the circular rolling and molding channel is R, the length extension direction of the arcuate working surface is parallel to the length extension direction of the cigarette paper receiving groove, the first side of the arcuate working surface is connected to the side wall of the cigarette paper receiving groove, the side of the circular rolling and molding channel for contacting the unglued paper edge of the cigarette paper is the unglued side, the first side and the second side of the arcuate working surface are continuous arcuate surfaces, and the central angle θ corresponding to the arcuate working surface is 0.5π<θ<0.75π, and the first side of the arcuate working surface is located at the side of the circular rolling and molding channel vertex close to the unglued side, and the central angle α between the first side of the arcuate working surface and the vertex of the circular rolling and molding channel is 0<α<0.25π.

[0007] Furthermore, when the large pressing plate is installed on the bottom plate of the cigarette gun, the second side of the arc-shaped working surface is connected to the semicircular working surface of the bottom plate of the cigarette gun.

[0008] Furthermore, the large pressure plate is made of steel.

[0009] Furthermore, the large pressing plate is provided with a plurality of connecting holes, and the large pressing plate is mounted on the bottom plate of the smoke gun by means of bolts, and the bolts pass through the large pressing plate and are mounted in the connecting holes.

[0010] As described above, the large pressing plate structure for a cigarette making machine according to the utility model has the following beneficial effects:

[0011] By setting up an arc-shaped working surface, it can completely wrap the glued paper edge of the cigarette paper, so that the tobacco bundle is always constrained in the circular rolling and forming channel, which can prevent the tobacco bundle from expanding, avoid fluctuations in the circumference of the cigarette, make the circumference of the cigarette more stable, and improve the product quality of the cigarette. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the large pressing plate in the utility model.

[0013] Figure 2 It is a schematic diagram of cigarette rolling in the utility model.

[0014] Figure 3 It is a schematic diagram of the structure of the traditional large pressure plate and the bottom plate of the smoke gun.

[0015] Figure 4 It is a schematic diagram of the structure of a traditional large pressure plate.

[0016] Figure 5 This is a diagram of the traditional cigarette rolling process.

[0017] Figure 6 Schematic diagram of glue overflow on a traditional large press plate.

[0018] Figure 7 It is a schematic diagram of glue overflow in the utility model.

[0019] Description of Figure Numbers

[0020] 1. Large pressing plate, 101. Arc-shaped working surface, 1011. First side, 1012. Second side, 102. Cigarette paper receiving groove, 103. Cloth belt groove, 104. Connecting hole, 105. Traditional working surface, 2. Bong bottom plate, 3. Cigarette, 301. Tobacco bundle, 302. Cigarette paper, 3021. Unglued paper edge, 3022. Glued paper edge, 4. Cloth belt, 5. Glue. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the specific implementations of the present invention in conjunction with the accompanying drawings. These implementations are only used to illustrate the present invention, but not to limit the present invention.

[0022] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In addition, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0025] See also Figures 1 to 7 The utility model provides a cigarette rolling mechanism for a cigarette making machine, comprising a large pressing plate 1 and a cigarette gun bottom plate 2, the cigarette gun bottom plate 2 is provided with a semicircular working surface, the large pressing plate 1 comprises an arcuate working surface 101 and a cigarette paper receiving groove 102, the arcuate working surface 101 and the semicircular working surface of the cigarette gun bottom plate 2 jointly form a circular rolling and forming channel for a cigarette 3, the radius of the circular rolling and forming channel is R, the length extension direction of the arcuate working surface 101 is parallel to the length extension direction of the cigarette paper receiving groove 102, the first side 1011 of the arcuate working surface 101 is connected to the side wall of the cigarette paper receiving groove 102, and the circular rolling and forming channel is formed. The side of the molding channel that is used to contact the unglued paper edge 3021 of the cigarette paper 302 is the unglued side, and the first side 1011 and the second side 1012 of the arcuate working surface 101 are continuous and complete arcuate surfaces without structures such as grooves, and the central angle θ corresponding to the arcuate working surface 101 is 0.5π<θ<0.75π, and the first side 1011 of the arcuate working surface 101 is located on the side of the apex of the circular rolling molding channel close to the unglued side, and the central angle α between the first side 1011 of the arcuate working surface 101 and the apex of the circular rolling molding channel is 0<α<0.25π.

[0026] The basic working principle of the large pressing plate structure for a cigarette making machine involved in the utility model is as follows: by making the first side 1011 and the second side 1012 of the arc-shaped working surface 101 into a continuous arc surface, and setting the center angle θ corresponding to the arc-shaped working surface 101 to 0.5π<θ<0.75π; on the one hand, the first side 1011 of the arc-shaped working surface 101 is kept away from the cloth belt 4, and the end of the cloth belt 4 is shorter than the glue paper edge 3022, thereby increasing the distance between the first side 1011 of the arc-shaped working surface 101 and the cloth belt 4. When the glue 5 on the glue paper edge 3022 overflows and flows toward the cloth belt 4 along the outer circumference of the cigarette paper 302, the glue 5 first passes through the first side 1011 of the arc-shaped working surface 101. When the arc-shaped working surface 101 plays a certain blocking role, the distance between the arc-shaped working surface 101 and the cloth belt 4 is long, and it is difficult for the glue 5 to reach the cloth belt 4, thereby greatly reducing the glue 5 from flowing to the cloth belt 4. On the other hand, since there is no gap in the traditional cloth tape groove 103, when the arc-shaped working surface 101 rolls the cigarette paper 302, the arc-shaped working surface 101 can completely wrap the cloth tape 4 and the glued paper edge 3022, press the cloth tape 4 and the cigarette paper 302 tightly on the tobacco bundle 301, and further squeeze the cigarette paper 302 through the cloth tape 4, so that the tobacco bundle 301 is always constrained in the circular rolling molding channel, preventing the tobacco bundle 301 from expanding, avoiding fluctuations in the circumference of the cigarette, and improving the stability of the circumference of the cigarette; by setting the arc length of the arc-shaped working surface 101 to 0.5π<θ<0.75π, it is ensured that the arc-shaped working surface 101 and the glued paper edge 3022 of the cigarette paper 302 can have the largest contact area, maximize the contact area between the arc-shaped working surface 101 and the glued paper edge 3022 of the cigarette paper 302, and stabilize the circumference of the cigarette.

[0027] In this embodiment, see Figure 2 As a preferred design, when the large pressing plate 1 is installed on the cigarette gun bottom plate 2, the second side 1012 of the arc-shaped working surface 101 is connected to the semicircular working surface of the cigarette gun bottom plate 2, so that the large pressing plate 1 and the cigarette gun bottom plate 2 can jointly form a circular rolling channel for the cigarette 3.

[0028] In this embodiment, see Figure 2 As a preferred design, the large pressure plate 1 is made of steel, which has high strength and is not easily deformed when subjected to external force, and can ensure the stability of the size of the arc-shaped working surface 101.

[0029] In this embodiment, see Figure 1 As a preferred design, a plurality of connecting holes 104 are provided on the large pressing plate 1. The large pressing plate 1 is installed on the bottom plate 2 of the smoke gun by bolts, and the bolts pass through the large pressing plate 1 and are installed in the connecting holes 104, which is convenient for installation and greatly improves the convenience of maintenance of the large pressing plate 1.

[0030] As can be seen from the above, the cigarette rolling mechanism for a cigarette making machine of the utility model has the following beneficial effects:

[0031] By providing the arc-shaped working surface 101, the glued paper edge 3022 of the cigarette paper 302 can be completely wrapped, so that the tobacco bundle 301 is always constrained in the circular rolling channel, which can prevent the tobacco bundle 301 from expanding, avoid fluctuations in the circumference of the cigarette, make the circumference of the cigarette more stable, and improve the product quality of the cigarette 3. In addition, the cigarette rolling mechanism has a simple structure, with little improvement on the existing structure, low manufacturing cost, and obvious working effect.

[0032] In summary, the utility model effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0033] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A cigarette rolling mechanism for a cigarette making machine, comprising a large pressing plate (1) and a cigarette gun bottom plate (2), the cigarette gun bottom plate (2) being provided with a semicircular working surface, the large pressing plate (1) comprising an arcuate working surface (101) and a cigarette paper receiving groove (102), the arcuate working surface (101) and the semicircular working surface of the cigarette gun bottom plate (2) jointly forming a circular rolling and molding channel for cigarettes (3), the radius of the circular rolling and molding channel being R, the length extension direction of the arcuate working surface (101) being parallel to the length extension direction of the cigarette paper receiving groove (102), the first side (1011) of the arcuate working surface (101) being connected to the side wall of the cigarette paper receiving groove (102), the side of the circular rolling and molding channel for contacting the un-glued paper edge (3021) of the cigarette paper (302) being the un-glued side, characterized in that: A continuous arc surface is formed between the first side (1011) and the second side (1012) of the arc-shaped working surface (101), and a center angle θ corresponding to the arc-shaped working surface (101) is 0.5π<θ<0.75π, and the first side (1011) of the arc-shaped working surface (101) is located on a side of the circular rolling forming channel vertex close to the non-glued side, and a center angle α between the first side (1011) of the arc-shaped working surface (101) and the vertex of the circular rolling forming channel is 0<α<0.25π.

2. The cigarette rolling mechanism for a cigarette making machine according to claim 1, characterized in that: When the large pressing plate (1) is mounted on the bottom plate (2) of the cigarette gun, the second side (1012) of the arc-shaped working surface (101) is connected to the semicircular working surface of the bottom plate (2) of the cigarette gun.

3. The cigarette rolling mechanism for a cigarette making machine according to claim 1, characterized in that: The large pressing plate (1) is made of steel.

4. The cigarette rolling mechanism for a cigarette making machine according to claim 1, characterized in that: The large pressing plate (1) is provided with a plurality of connecting holes (104), and the large pressing plate (1) is mounted on the bottom plate (2) of the cigarette gun by means of bolts, and the bolts pass through the large pressing plate (1) and are mounted in the connecting holes (104).

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