CN2450909Y - Spiral cutter for Chinese cypress paper - Google Patents

Abstract

The utility model relates to a spiral cutter for cutting tipping paper, which belongs to the field of tobacco machinery. The device is characterized in that it has a cutter body, the peripheral wall of the cutter body is fixed with several cutters, a cylindrical cutting drum, the circumference of the cutting drum is wrapped with hard alloy, and the rotation direction of the cutter body is opposite to that of the cutting drum. There are several cemented carbide blocks fixed on the circumference of the drum, and there is a gap S between each cemented carbide block; the cutter body is in the shape of a cone whose diameter at one end is smaller than that of the other end, and its taper α is 3-5 degrees. There are several cutting knives on the top; on one side of each hard alloy block, there is a knife groove, and each hard alloy block is opened with several positioning holes and suction holes; the side of the cutter is opened with A cutting edge, the included angle of the cutting edge is β is 25-40 degree.

Description

Spiral Tipping Paper Cutter

The utility model relates to a spiral cutter for cutting tipping paper, which belongs to the field of tobacco machinery.

The cutting of the tipping paper by the existing cigarette machine is completed by cutting the cutting knife to the cold hard alloy drum or the cutting knife to the hot hard alloy drum. This type of cutting method has the following disadvantages: the first is cutting Knife adjustments are difficult and time consuming. Because the tipping paper cutters of various cigarette machines are composed of eight to fourteen blades, it is very difficult and time-consuming to ensure that these blades are adjusted to the allowable circumferential tolerance range due to the cumulative error of processing and assembly clearance; The second is that the service life of the cutter is short, and the wear of the cemented carbide drum is large. When working hard, the cutter made of cemented carbide and the drum body made of cemented carbide frequently collide with each other. Both parts are easily worn, blunt or chipped. , and the wear of each blade edge is not exactly the same during work. In order to ensure the concentricity of each blade during rotating work, repair personnel often need to continuously debug and use methods such as adding knives to compensate. It also takes a lot of time. The cigarette machine cannot Work efficiently. Chinese patent ZL: 96216716 discloses a "self-centering tipping paper cutter", which makes the support medium bulge by adjusting the screw rod, adjusts the contact pressure between the cutter and the cutter wheel during work, and improves the cutting quality. The time for adjusting the cutter and the paper cutting wheel is saved, but the problem of short service life due to the direct contact between the cutter and the paper cutting wheel is not solved.

The purpose of this utility model is to invent a spiral type tipper that can effectively avoid the loss caused by the mutual contact between the cutter and the hard alloy drum, improve its service life, reduce adjustment time, and cut tipping paper. Paper cutting hob.

The purpose of the present invention can be accomplished by the following structures and measures: the spiral tipping paper cutter has a cutter body, the peripheral wall of the cutter body is fixedly equipped with several cutters, a cylindrical cutting drum, and the cutting drum circumference is wrapped There is hard alloy, the cutter body is opposite to the rotation direction of the cutting drum, and it is characterized in that several hard alloy blocks are fixed on the circumference of the cutting drum, and there is a gap S between each hard alloy block; the cutter body is one end The diameter of the cone is smaller than the diameter of the other end, and its taper α is 3-5 degrees. Several cutting knives are installed on the cutter body; on one side of each hard alloy block, there is a knife groove, and each hard alloy block There are several positioning holes and suction holes on the quality alloy block; there is a cutting edge on the side of the cutting knife, and the included angle of the cutting edge is 25-40 degrees for β.

When working, the cutting drum (2) and the cutter body (1) rotate in opposite directions synchronously, and the paper is evenly adsorbed on the hard alloy block on the outer surface of the cutting drum under the central suction of the cutting drum, and is installed on the cutter body ( 1) The cutting edge (12) with a β angle on the circumference is first inserted into the gap S between the cutting drum (2) and the cemented carbide block (21) to shear the cork adsorbed on the cutting drum (2). paper, the cutting process avoids direct contact between the cutter (11) and the hard alloy block on the cutting drum (2), improving the life of the cutter; the cutter body (1) has a large diameter at one end and a small diameter at the other end When the cutter body (1) rotates, the cutter (11) installed on the cutter body and the hard alloy block (21) in the cutting drum (2) gradually cut the tipping paper in a point contact manner. , the cutter (11) is in a spiral motion during the whole cutting tipping paper process. At least 8-14 cutters (11) and 8-14 cemented carbide blocks (21) are housed at the cutter body (1) and the cutting drum (2), so the water cut by each cutter (11) Loose paper is straight edged. The effect of suction holes (24) in the cemented carbide block (21) is when shearing, and the suction force at the center of the cutting drum (2) can relatively adsorb the paper on the outer surface of the cutting drum (2), which is beneficial to the cutter ( 11) Cut the tipping paper.

Further description will be made below in conjunction with accompanying drawings. But the scope of protection of the utility model is not limited to what is shown in the accompanying drawings and the examples.

Fig. 1 is a schematic diagram of the working state of the original cutter body and the cutting drum.

Fig. 2 is a schematic diagram of the utility model when the cutter body and the cutting drum are working.

Fig. 3 is a structural schematic diagram of a cemented carbide block part installed on the cutting drum.

Fig. 4 is a structural schematic diagram of a cutter part installed on the cutter body.

Fig. 5 is a sectional view along the direction A-A shown in Fig. 4 .

Fig. 6 is a schematic diagram of the working state of the cutter body in the cutter body and the hard alloy block in the cutting drum.

Fig. 7 is a top view of the working state of the cutter body and the cutting drum shown in Fig. 2 .

Embodiment: the cylindrical cone angle α of cutter body circumference is processed to be 4 degree, and the included angle β of cutter edge is processed to be 30 degree, installs 12 cutting knives (11) on a cutter body (1), in a cutting 12 cemented carbide blocks (21) are installed on the drum (2). Taking the PROTO cigarette machine as an example, a pair of adjusted cutters can only be used for 21 days. After that, the cutters must be folded off, and the blades of the cutters will be ground by a special person with a special grinder. It takes about 4 hours, and then Then use the special adjustment tool to adjust each cutter one by one, and it takes 2-3 hours, and a skilled worker can work for at least one day; and using the device structure of the utility model, the service life of each pair of cutters can be extended It is 1 year, and the adjustment of the knife can also be completed at one time by using the calibration knife plate, and it only takes 30 minutes to debug on the machine. This not only reduces the labor intensity of workers, but also improves the effective working time of a single cigarette making machine, thereby saving equipment investment.

The device of the utility model has the advantages of simple structure, ingenious design, completely reliable quality of the tipping paper cut by it, long service life of the cutting knife, and reduced difficulty of adjusting the cutting knife, thus reducing the effective time delayed by the debugging of the cigarette machine, It has obvious use value, economic value and promotion value.

1-cutter body; 11-cutter; 12-cutting edge; 2-cutting drum; 21-tungsten carbide block;

Claims (4)

1. spiral yew paper clipper, has a cutting knife body, cutting knife body circumferential wall fixedly is equipped with several cutting knifes, a cylinder cutter drum, the cutter drum circumference is enclosed with carbide alloy, the direction of rotation of cutting knife body and cutter drum is characterized in that being fixed with several piece hard alloy blocks (21) on cutter drum (2) circumference, leaves gap S between each piece hard alloy blocks (21).

2. spiral yew paper clipper according to claim 1 is characterized in that cutting knife body (1) is the cone shape of an end diameter less than other end diameter, and its tapering α is the 3-5 degree, is equipped with several cutting knife (11) on the cutting knife body (1).

3. spiral yew paper clipper according to claim 1 and 2 is characterized in that having cutter relieving groove (22) on a side of every hard alloy blocks (21), has several locating holes (23) and suction hole (24) on the every hard alloy blocks (21).

4. spiral yew paper clipper according to claim 1 and 2 is characterized in that the side of cutting knife (11) has a cutting edge (12), and the angle of cutting edge (12) is that β is the 25-40 degree.

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