Fixed knife structure for leaf threshing machine

Abstract

The utility model provides a stationary knife structure for a leaf threshing machine, which comprises a rectangular stationary knife, one side of the stationary knife is provided with a triangular blade along the length direction, one side of the end part of the stationary knife is provided with a mounting hole, one side surface of the stationary knife is provided with a strip-shaped limiting cylinder along the width direction of the stationary knife, a sliding rod is arranged in the limiting cylinder, and the sliding rod is connected with the fixed knife. The top of the sliding rod is horizontally connected with a push plate, the push plate is located on the side of the cutting edge, the sliding rod in the limiting barrel is sleeved with a compression spring, the top face of the compression spring is fixedly connected with the top of the limiting barrel, and the bottom face of the compression spring is fixedly connected with the sliding rod. The free end of the sliding rod abuts against the suction cup type electromagnet, and a control element of the suction cup type electromagnet is connected with the controller through a signal line. The stationary knife structure can prevent materials from being accumulated on the stationary knife when the threshing machine tears the leaves, so that the blocking of a frame channel is avoided, and the leaf tearing efficiency is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of leaf-cutting machine technology, specifically relating to a fixed blade structure for a leaf-cutting machine. Background Technology

[0002] Leaf threshing machines are a type of equipment used in the leaf threshing process of tobacco re-drying production lines to process large leaves separately. They reduce the content of leaves larger than 1 inch square separated during the threshing process, increasing the number of leaves between 1 / 2 inch and 1 inch square. Simultaneously, they reduce the proportion of tobacco stems in the leaves. This benefits the processing efficiency and cost reduction of slim cigarettes in the cigarette industry. With the increasing demand for slim cigarettes in the cigarette industry, the requirement for a higher proportion of large leaves in the re-drying process is also increasing, while maintaining a certain percentage of large and medium-sized leaves. However, under the tearing action of the leaf threshing machine, over time, the material on the fixed blades accumulates. When it reaches a certain amount, the accumulated material clumps suddenly break down and fall. This non-linear load impact not only causes instability in the transmission system but also triggers instantaneous blockage of the frame channel, forcing the equipment to frequently enter overload protection shutdown mode, directly resulting in lost effective working time and severely restricting the overall efficiency and economic benefits of the production line.

[0003] In view of this, in order to solve the above problems, this utility model proposes an improved fixed blade structure, which can avoid the accumulation of material on the fixed blade when the leaf-tearing machine is tearing the blade, causing blockage of the frame channel, and effectively improving the blade tearing efficiency. Summary of the Invention

[0004] This utility model provides a fixed blade structure for a blade shredder, which can prevent material accumulation on the fixed blade during blade tearing, thus avoiding blockage of the frame channel and effectively improving blade tearing efficiency. The specific solution is as follows:

[0005] A fixed blade structure for a leaf trimmer includes a rectangular fixed blade with a triangular cutting edge on one side along its length. A mounting hole is provided on one end of the fixed blade. An elongated limiting cylinder is provided on one side of the fixed blade along its width. A sliding rod is provided inside the limiting cylinder. A push plate is horizontally connected to the top of the sliding rod, and the push plate is located on the side of the cutting edge. A compression spring is fitted onto the sliding rod inside the limiting cylinder. The top surface of the compression spring is fixedly connected to the top of the limiting cylinder, and the bottom surface is fixedly connected to the sliding rod. A miniature suction cup electromagnet is provided at the end of the limiting cylinder away from the push plate. The free end of the sliding rod abuts against the suction cup electromagnet. The suction cup electromagnet control element is connected to a controller via a signal line.

[0006] Furthermore, the triangular blade has an isosceles triangle cross-section, with the high end located on one side of the push plate.

[0007] Furthermore, a pressure sensor is provided on the side of the push plate away from the blade, and the pressure sensor is connected to the controller via a signal line.

[0008] Furthermore, there are two limiting cylinders, which are spaced apart on one side of the fixed blade and their top ends are connected to the push plate respectively. There are two corresponding slide rods, compression springs and suction cup electromagnets.

[0009] Furthermore, a long strip-shaped wire-guiding groove is provided on the fixed blade on the lower side of the suction cup electromagnet.

[0010] Furthermore, the length of the push plate is the same as the length of the blade, and a baffle plate is connected to the side of the push plate that is inclined downwards away from the fixed blade.

[0011] Furthermore, the initial position of the upper surface of the push plate is located below the blade.

[0012] The beneficial effects of this utility model are:

[0013] This utility model discloses a fixed blade structure for a blade-breaking machine. By setting one side of the fixed blade into an isosceles triangular blade, a miniature suction cup electromagnet, a limiting cylinder, a pressure sensor, a sliding rod, and a compression spring are used to control the movement of the push plate. When the blade is tearing, the blade slows down the accumulation of material on the fixed blade. As the material gradually accumulates and is compressed onto the push plate, the pressure sensor transmits a signal to the controller, which then de-energizes the suction cup electromagnet. At this time, the sliding rod moves upward instantaneously under the elastic action of the compression spring, causing the push plate to push the blade upward and drop it to the other side of the fixed blade. This avoids the continuous accumulation of material on the fixed blade, which could cause blockage of the frame channel and ensures the continuity of blade tearing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is an exploded view of the present invention.

[0016] Figure 3 This is a side view of the present invention.

[0017] Explanation of reference numerals in the attached drawings: 1. Fixed blade; 2. Blade; 3. Mounting hole; 4. Limiting cylinder; 5. Slide rod; 6. Push plate; 7. Compression spring; 8. Suction cup electromagnet; 9. Pressure sensor; 10. Cable management groove; 11. Baffle. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] See Figure 1-3A fixed blade structure for a leaf trimmer includes a rectangular fixed blade 1. A triangular blade 2 is provided on one side of the fixed blade 1 along its length. A mounting hole 3 is provided on one side of the fixed blade 1. A long strip-shaped limiting cylinder 4 is provided on one side of the fixed blade 1 along its width. The limiting cylinder 4 is detachably connected to the fixed blade 1. A sliding rod 5 is provided inside the limiting cylinder 4. The outer diameter of the sliding rod 5 is smaller than the inner diameter of the limiting cylinder 5. A push plate 6 is horizontally connected to the top of the sliding rod 5. The push plate 6 is connected to the top of the sliding rod 5 by screws and is located on the side of the blade 2. A compression spring 7 is sleeved on the sliding rod 5 inside the limiting cylinder 4. The top surface of the compression spring 7 is fixedly connected to the top of the limiting cylinder 4, and the bottom surface is fixedly connected to the sliding rod 5. A miniature suction cup electromagnet 8 is provided at the end of the limiting cylinder 4 away from the push plate 6. The free end of the sliding rod 5 is abutted against the suction cup electromagnet 8. The control element of the suction cup electromagnet 8 is connected to the controller through a signal line.

[0020] The preferred triangular blade 2 has an isosceles triangle cross section, with the upper end located on one side of the push plate 6. The design of the isosceles triangle blade 2 helps to avoid tobacco leaves getting stuck and accumulating.

[0021] A pressure sensor 9 is provided on the side of the push plate 6 away from the blade 2. The pressure sensor 9 is connected to the controller via a signal line. The design of the pressure sensor 9 makes it easier to transmit a signal to the controller when a certain weight of tobacco leaves accumulates on the push plate 6, making it more intelligent.

[0022] The preferred limiting cylinder 4 consists of two cylinders, which are spaced apart on one side of the fixed blade 1 and their top ends are connected to the push plate 6 respectively. Correspondingly, there are two slide rods 5, two compression springs 7, and two suction cup electromagnets 8. The setting of two limiting cylinders 4 and slide rods 5 can make the push plate 6 more stable during movement.

[0023] The preferred suction cup electromagnet 8 has a long strip-shaped cable management groove 10 on the fixed blade 1 on the lower side. The cable management groove 10 is designed to facilitate the arrangement of the connecting wires of the suction cup electromagnet 8 and the pressure sensor 9 to avoid them from becoming tangled and being touched by tobacco leaves.

[0024] The preferred push plate 6 has the same length as the blade 2. The push plate 6 is inclined downward on the side away from the fixed blade 1 and connected to a baffle 11, which can ensure that all the tobacco leaves on the blade 2 are pushed off.

[0025] The preferred position of the upper surface of the push plate 6 is located below the blade 2.

[0026] The working principle of this utility model is as follows: First, in the initial state, the top surface of the push plate 6 is located below the blade 2 (i.e., away from the blade), the suction cup electromagnet 8 is energized, the bottom end of the slide rod 5 abuts against the suction cup electromagnet 8, and the compression spring 7 is in a stretched state. When the leaf-cutting machine starts and tears the leaves, the sharp blade 2 can directly cut the leaves into segments or slow down the accumulation speed as more leaves are torn. When leaves gradually accumulate on the blade 2 and press against the push plate 6, the pressure sensor 9 senses the signal and transmits it to the controller. At this time, the controller controls... When the suction cup electromagnet 8 is de-energized, the slide rod 5 moves rapidly upward under the action of the compression spring 7. At the same time, the push rod 6 also moves upward. At this time, the push plate 6 can push the blades accumulated on the blade 2 to the other side of the fixed blade 1 and drop them downward. After the push plate 6 pushes the blades to the other side, the controller controls the suction cup electromagnet 8 to be energized and the bottom end of the slide rod 5 is attached to the suction cup. At this time, the slide rod 5 pulls the push plate 6 downward and away from the blade 2. By repeating this reciprocating motion, material can be prevented from accumulating on the fixed blade to avoid blocking the frame channel, thereby ensuring the continuity of blade tearing.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fixed blade structure for a blade trimmer, characterized in that: The device includes a rectangular fixed blade (1), a triangular blade (2) on one side along its length, a mounting hole (3) on one side of the end of the fixed blade (1), a long strip-shaped limiting cylinder (4) on one side of the fixed blade (1) along its width, a sliding rod (5) inside the limiting cylinder (4), a push plate (6) horizontally connected to the top of the sliding rod (5), and the push plate (6) located on the side of the blade (2), a compression spring (7) sleeved on the sliding rod (5) inside the limiting cylinder (4), the top surface of the compression spring (7) being fixedly connected to the top of the limiting cylinder (4) and the bottom surface being fixedly connected to the sliding rod (5), a miniature suction cup electromagnet (8) on one end of the limiting cylinder (4) away from the push plate (6), the free end of the sliding rod (5) abutting against the suction cup electromagnet (8), and the control element of the suction cup electromagnet (8) being connected to the controller through a signal line.

2. The fixed blade structure for a blade trimmer according to claim 1, characterized in that: The triangular blade (2) has an isosceles triangle cross section, with the high end located on one side of the push plate (6).

3. The fixed blade structure for a blade trimmer according to claim 1, characterized in that: A pressure sensor (9) is provided on the side of the push plate (6) away from the blade (2), and the pressure sensor (9) is connected to the controller through a signal line.

4. The fixed blade structure for a blade trimmer according to claim 1, characterized in that: The limiting cylinder (4) consists of two parts, which are arranged at intervals on one side of the fixed knife (1). Their top ends are connected to the push plate (6) respectively. There are two corresponding slide rods (5), compression springs (7) and suction cup electromagnets (8).

5. The fixed blade structure for a blade trimmer according to claim 1, characterized in that: A long strip-shaped wire channel (10) is provided on the fixed blade (1) on the lower side of the suction cup electromagnet (8).

6. The fixed blade structure for a blade trimmer according to claim 1, characterized in that: The length of the push plate (6) is the same as the length of the blade (2), and a baffle (11) is connected to the push plate (6) on the side away from the fixed blade (1) at an angle downward.

7. The fixed blade structure for a blade trimmer according to claim 1, characterized in that: The initial position of the upper surface of the push plate (6) is located below the blade (2).

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