Left scraper of tobacco cutter

Abstract

The left scraper (12) is a quadrangular prism formed by sequentially connecting a first knife edge (1), a second knife edge (2), a third knife edge (3) and a fourth knife edge (4), the first knife edge (1) and the third knife edge (3) are respectively perpendicular to the fourth knife edge (4), the included angle between the second knife edge (2) and the third knife edge (3) is a knife point (13), the angle of the knife point (13) ranges from 70 degrees to 80 degrees, and the angle of the knife point (13) ranges from 70 degrees to 80 degrees. An arc-shaped groove (5) is formed in the side of a third knife edge (3) below a knife point (13), a plurality of mounting holes (9) are formed in the plane where a second knife edge (2) is located, screws penetrate through the mounting holes (9) to fix the plane where a fourth knife edge (4) of a left scraper (12) is located on a tobacco cutter knife roll base (11), and the left scraper (12) is divided into an upper scraper (6), a middle scraper (7) and a lower scraper (8) in the length direction of the left scraper (12). When a certain section of the scraper is worn, only the worn scraper is replaced.

Description

Technical Field

[0001] The utility model relates to the field of cigarette processing and shredding equipment, in particular to a left scraper of a shredder. Background Art

[0002] KT3 shredder is a process equipment on the tobacco industry's silk production line. Its function and task is to cut tobacco leaves or stems with certain temperature and humidity conditions into shredded tobacco or shredded stems with a width that meets the process requirements. During the production process, the rotation axis of the knife roller is perpendicular to the material conveying direction, and the rotation trajectory of the blade edge is a cylindrical surface. The rotating knife roller drives the blade to cut the material continuously in sequence. The cut tobacco and scraps will be thrown out along the tangent direction of the knife roller under the action of centrifugal force. A slide plate is provided in the opposite direction of the knife roller to block the tobacco thrown out during shredding. After long-term operation, tobacco scale will be generated on the slide plate. In order to scrape off the tobacco scale on the slide plate, the shredder is provided with scrapers on the left and right sides of the knife roller body. The horizontal reciprocating motion of the grinding wheel drives the slide plate to move left and right to scrape off the tobacco scale on the slide plate.

[0003] The existing left scraper is a rectangular sheet, and the scraper base is installed on the base of the knife roller body. The pressure strip installs the sheet-shaped rectangular blade on the scraper base. The blade has low strength and is easy to wear and deform. After the scraper is worn and deformed, there is a gap between it and the slide plate, which makes it impossible to scrape off the soot on the slide plate, and the slide plate is seriously scaled. After the scraper scrapes off the soot on the slide plate, the soot cannot be discharged in time, and the soot accumulates on the scraper, which aggravates the wear of the scraper and the slide plate, increases the resistance of the grinding wheel during reciprocating motion, and causes the grinding wheel reciprocating device to be stuck or the transmission system to fail and shut down. Summary of the invention

[0004] The utility model aims to provide a left scraper for a wire cutting machine. By changing the structure and installation method of the original scraper, the improved scraper is not only simple in structure and easy to install, but also increases the strength of the scraper, ensuring that the right scraper can effectively scrape off the smoke scale on the grinding wheel slide and discharge it in time during the operation of the wire cutting machine. At the same time, since the original scraper is changed into an upper, middle and lower three-section type, when it is found that a certain section of the scraper is worn to a large extent, it is only necessary to remove the scraper with greater wear and replace it with a new scraper, thereby reducing the maintenance cost.

[0005] Specifically, the purpose of the utility model is achieved in this way:

[0006] The utility model discloses a left scraper of a shredder, which is composed of a quadrangular prism consisting of a first blade edge, a second blade edge, a third blade edge and a fourth blade edge which are connected in sequence, wherein: the first blade edge and the third blade edge are respectively perpendicular to the fourth blade edge, the angle between the second blade edge and the third blade edge is a blade tip, the angle of the blade tip is 70° to 80°, an arc-shaped groove is provided on the side of the third blade edge below the blade tip, a plurality of mounting holes are provided on the plane where the second blade edge is located, and screws are passed through the above mounting holes to fix the plane where the fourth blade edge of the left scraper is located on the blade roller base of the shredder.

[0007] The utility model provides a left scraper for a shredder, wherein: the mounting hole is a countersunk hole.

[0008] The utility model provides a left scraper for a shredder, wherein: a chamfer is respectively provided on the plane where the third blade edge is located and on both end surfaces of the left scraper.

[0009] The utility model discloses a left scraper for a shredder, wherein the left scraper is divided into an upper scraper, a middle scraper and a lower scraper along its length direction, and two mounting holes are opened on the plane where the second blade edges of the upper scraper, the middle scraper and the lower scraper are located.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. The improved scraper is an integrated type. Compared with the prior art in which the scraper base is installed on the blade roller body base, the pressure strip installs the sheet-shaped rectangular blade on the scraper base, which has a simple structure and is easy to install.

[0012] 2. The improved scraper is in the shape of a quadrangular prism, which is stronger, more durable and has a longer service life than the sheet-shaped rectangular blade in the prior art.

[0013] 3. The improved scraper has an arc groove on one side of the scraper edge, so the soot scraped off by the scraper can be discharged in time during operation.

[0014] 4. The improved scraper has three sections: upper, middle and lower. Compared with the integral blade of the prior art, when a certain section of the scraper is found to be severely worn, only the scraper with greater wear needs to be removed and replaced with a new one, thus reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a forward schematic diagram of a left scraper of a shredder of the utility model;

[0016] Figure 2 It is a top view schematic diagram of a left scraper of a shredder of the utility model;

[0017] Figure 3 for Figure 1 A magnified schematic diagram;

[0018] Figure 4 It is a three-dimensional schematic diagram of a left scraper of a shredder of the utility model being installed on the shredder.

[0019] exist Figures 1 to 4 Among them, number 1 is the first blade edge; number 2 is the second blade edge; number 3 is the third blade edge; number 4 is the fourth blade edge; number 5 is the groove; number 6 is the upper scraper; number 7 is the middle scraper; number 8 is the lower scraper; number 9 is the mounting hole; number 10 is the chamfer; number 11 is the base of the shredder roller; number 12 is the left scraper; number 13 is the blade tip. DETAILED DESCRIPTION

[0020] See also Figure 1-4 As shown, the left scraper 12 of the wire cutter of the utility model is composed of a quadrangular prism consisting of a first blade edge 1, a second blade edge 2, a third blade edge 3 and a fourth blade edge 4 which are connected in sequence. The first blade edge 1 and the third blade edge 3 are respectively perpendicular to the fourth blade edge 4, and the angle between the second blade edge 2 and the third blade edge 3 is a blade tip 13, and the angle of the blade tip 13 is 70° to 80°. An arc-shaped groove 5 is provided on the side of the third blade edge 3 below the blade tip 13, and a plurality of mounting holes 9 are provided on the plane where the second blade edge 2 is located. The mounting holes 9 are countersunk holes, and screws pass through the above-mentioned mounting holes 9 to fix the plane where the fourth blade edge 4 of the left scraper 12 is located to the blade roller base 11 of the wire cutter, and a chamfer 10 is provided on the plane where the third blade edge 3 is located and on both end faces of the left scraper 12.

[0021] The left scraper 12 is divided into an upper scraper 6, a middle scraper 7 and a lower scraper 8 along its length direction. Two mounting holes 9 are formed on the plane where the second blade edges 2 of the upper scraper 6, the middle scraper 7 and the lower scraper 8 are located.

[0022] The working principle is: the upper scraper 6, the middle scraper 7 and the lower scraper 8 are directly installed on the KT3 wire cutter knife roller body base 11 by screws. After installation, the scraper edge is parallel to the KT3 wire cutter grinding wheel slide slide. When the KT3 wire cutter is working, the grinding wheel moves horizontally and reciprocatingly, driving the slide to move left and right. The scraper scrapes off the soot on the slide and discharges it along the arc groove 5.

[0023] The above is only a specific implementation of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the present utility model.

Claims

1. A left scraper of a shredder, wherein the left scraper (12) is a quadrangular prism consisting of a first blade edge (1), a second blade edge (2), a third blade edge (3) and a fourth blade edge (4) connected in sequence, characterized in that: The first blade edge (1) and the third blade edge (3) are respectively perpendicular to the fourth blade edge (4); the included angle between the second blade edge (2) and the third blade edge (3) is a blade tip (13); the angle of the blade tip (13) is 70° to 80°; a circular arc groove (5) is provided on the side of the third blade edge (3) below the blade tip (13); a plurality of mounting holes (9) are provided on the plane where the second blade edge (2) is located; screws are passed through the mounting holes (9) to fix the plane where the fourth blade edge (4) of the left scraper (12) is located on the blade roller base (11) of the shredder.

2. The left scraper of a shredder according to claim 1, characterized in that: The mounting hole (9) is a countersunk hole.

3. The left scraper of a shredder according to claim 2, characterized in that: A chamfer (10) is respectively formed on the plane where the third blade edge (3) is located and on both end surfaces of the left scraper (12).

4. The left scraper of a shredder according to claim 3, characterized in that: The left scraper (12) is divided into an upper scraper (6), a middle scraper (7) and a lower scraper (8) along its length direction, and two mounting holes (9) are provided on the plane where the second blade edges (2) of the upper scraper (6), the middle scraper (7) and the lower scraper (8) are located.

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