Knife sharpening mechanism of tobacco cutter

Abstract

The utility model relates to the technical field of tobacco processing, in particular to a knife sharpening mechanism of a tobacco cutter, which is characterized in that a displacement laser sensor is arranged in a cutting system of the tobacco cutter, detects the displacement distance of a knife sharpening grinding wheel in real time, and sends detected displacement data to a grinding wheel position controller; the grinding wheel position controller comprises an alarm module, the displacement laser sensor sends displacement data obtained through detection to the grinding wheel position controller, and therefore grinding wheel position error alarm information is fed back, the blade grinding precision is guaranteed, and the shredding quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco processing, in particular to a knife sharpening mechanism of a tobacco cutter. Background Art

[0002] The shredding process is a key step in tobacco silk production. The function of the shredder is to cut the processed tobacco leaves into shreds of a width that meets the requirements of the silk production process specifications. The shredding width and discharge uniformity of the shredder have an important impact on the continuous production, product efficiency and product quality of subsequent processes.

[0003] like Figure 1 As shown, the shredder operates as follows: a certain flow of loose material is fed through a feeding system 300 and into a feed system 200. The feed system 200 conveys and compresses the material, gradually forming a compact "tobacco cake" that is then fed to a cutting system 100 for shredding. The cutting system 100 includes a knife roller and a sharpening mechanism. The knife roller cuts the continuously fed "tobacco cake" into shredded tobacco of the desired width, while the sharpening mechanism grinds the cutter blades on the knife roller to maintain a sharp edge.

[0004] At present, the sharpening mechanism has problems such as inaccurate axial positioning and radial runout, which cause the cutter to have "rounded" and irregular blades, resulting in unstable gaps between the blade and the knife gate, poor matching of various parameters, and increased phenomenon of raw tobacco running, which greatly affects the cut width and its uniformity.

[0005] In view of the above problems, the inventors of the present invention finally obtained the present invention after a long period of research and practice. Utility Model Content

[0006] In order to solve at least one aspect of the above technical problems, the present invention provides a cutting machine sharpening mechanism, which can accurately feedback the grinding wheel position, thereby avoiding the grinding defects of the cutting blade, thereby ensuring the cutting quality.

[0007] The technical solution adopted in this utility model is:

[0008] Provided is a blade sharpening mechanism for a shredder, comprising a blade sharpening wheel, a grinding wheel feeding unit, and a grinding wheel position controller; the blade sharpening wheel is connected to the grinding wheel feeding unit, and the grinding wheel position controller is electrically connected to the grinding wheel feeding unit;

[0009] It is characterized in that the sharpening mechanism also includes a displacement laser sensor installed on the wire cutter, and the displacement laser sensor is electrically connected or signal-connected to the grinding wheel position controller; the laser sensor is used to detect the displacement distance of the sharpening wheel in real time.

[0010] Furthermore, the detection range of the laser sensor is less than 60 mm.

[0011] Furthermore, the grinding wheel position controller includes an alarm module.

[0012] Furthermore, the grinding wheel feeding unit includes a grinding wheel sliding frame, the grinding wheel is in sliding cooperation with the grinding wheel sliding frame, and the grinding wheel position controller is used to control the displacement of the grinding wheel along the grinding wheel sliding frame.

[0013] Furthermore, the displacement laser sensor includes at least an axial displacement laser sensor and a radial displacement laser sensor. The axial displacement laser sensor is used to detect the axial displacement of the grinding wheel, and the radial displacement laser sensor is used to detect the radial displacement of the grinding wheel.

[0014] Furthermore, the knife sharpening mechanism further comprises a blade displacement sensor for detecting the displacement distance of the blade on the knife roller, and the blade displacement sensor is electrically connected or signal-connected to the grinding wheel position controller.

[0015] Furthermore, the knife sharpening mechanism further comprises a knife door position sensor for detecting the position of the knife door, and the knife door position sensor is electrically connected or signal-connected to the grinding wheel position controller.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] This new blade sharpening mechanism features a displacement laser sensor that detects the real-time displacement of the grinding wheel, monitoring its position and ensuring blade grinding accuracy, thereby improving cut quality. A blade displacement sensor monitors blade feed in real time, while a gate position sensor monitors gate position, providing feedback on the gap between the blade and the gate. This sharpening mechanism reduces the risk of raw tobacco slippage, allowing the cut width to be adjusted within a controllable range, ensuring uniform cut width. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 Shows a structural schematic diagram of an existing shredder;

[0020] Figure 2 A schematic diagram showing the principle of a knife sharpening mechanism according to an embodiment of the present utility model is shown;

[0021] Figure 3A schematic diagram showing the position of a displacement laser sensor of a knife sharpening mechanism according to an embodiment of the present utility model is shown. DETAILED DESCRIPTION

[0022] The above and other technical features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0024] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0025] like Figure 2 、 Figure 3 As shown, in the feeding system 200, the upper and lower conveyor chains squeeze the material, gradually forming a compact "tobacco cake" that is then delivered to the cutter gate 1. The cutter roller 2 rotates the blades on it, cutting the "tobacco cake" continuously fed from the cutter gate 15 into tobacco shreds of the desired width. A grinding wheel 3, mounted on a sliding grinding wheel frame 4, reciprocates parallel to the axis of rotation of the cutter roller 2. The grinding wheel 3 rotates at high speed, grinding the continuously fed cutter blade. A grinding wheel position controller (not shown) controls the feed motion of the grinding wheel 3.

[0026] In the cutting system 100, a displacement laser sensor 5 is provided. The displacement laser sensor 5 detects the displacement distance of the grinding wheel 3 in real time and sends the detected displacement data to the grinding wheel position controller. The grinding wheel position controller includes a display unit that can display the displacement data, so that the operator can determine whether the grinding wheel movement position is within a reasonable range based on the displacement data. When the grinding wheel movement position exceeds the reasonable range, the operator can shut down the machine for maintenance or adjust the grinding wheel position controller to ensure the blade grinding accuracy and improve the cutting quality. Preferably, the detection range of the laser sensor is less than 60 mm, the size of the laser sensor is less than 100 mm × 60 mm, and it has high sensitivity and resolution.

[0027] More specifically, the grinding wheel feed unit includes a grinding wheel slide 4, with the grinding wheel 3 slidingly engaged with the grinding wheel slide 4. A grinding wheel position controller is used to control the displacement of the grinding wheel 3 along the grinding wheel slide 4. Multiple blades are evenly and tangentially mounted on the circumference of the cutter roller 2. The grinding wheel 3 moves along the grinding wheel slide 4 to grind the blades on the cutter roller 2.

[0028] Preferably, the displacement laser sensor includes at least an axial displacement laser sensor and a radial displacement laser sensor. The axial displacement laser sensor is used to detect the axial displacement of the grinding wheel, and the radial displacement laser sensor is used to detect the radial displacement of the grinding wheel.

[0029] In some embodiments, the grinding wheel position controller includes an alarm module. The displacement laser sensor 5 transmits the detected displacement data to the grinding wheel position controller. When the grinding wheel movement position exceeds a reasonable range, the alarm module issues an alarm. It is understood that the reasonable range of grinding wheel movement can be pre-set, that is, the alarm module issues an alarm when the displacement data exceeds the predetermined range.

[0030] In some embodiments, the sharpening mechanism further includes a blade displacement sensor for detecting the displacement distance of the blade on the knife roller and / or a knife door position sensor for detecting the position of the knife door; the blade displacement sensor is electrically connected or signal-connected to the grinding wheel position controller, and the knife door position sensor is electrically connected or signal-connected to the grinding wheel position controller. The gap between the blade and the knife door of the shredder directly affects the width of the tobacco. During the operation of the shredder, the knife door, blade, etc. are constantly worn, and the gap between the blade and the knife door needs to be adjusted. It can be understood that the knife door position, blade position and the position of the sharpening wheel are interrelated. The blade displacement distance information and the knife door position information provide a basis for adjusting the sharpening wheel, so that the grinding wheel movement position is accurate and stable, and the technical parameters of the shred width are accurately adjusted within a controllable range.

[0031] For example, the blade displacement sensor sends the detected displacement data to the grinding wheel position controller. When the blade displacement exceeds a reasonable range, the alarm module issues an alarm. Similarly, the knife door position sensor sends the detected knife door position data to the grinding wheel position controller. When the knife door position exceeds a reasonable range, the alarm module issues an alarm.

[0032] The above are only preferred embodiments of the present invention and are intended to be illustrative rather than restrictive. The structures and connection methods of the components of the present invention are subject to change, and any equivalent transformations and improvements based on the technical solution of the present invention should not be excluded from the scope of protection of the present invention.

Claims

1. A blade sharpening mechanism for a shredder, comprising a grinding wheel, a grinding wheel feed unit, and a grinding wheel position controller; the grinding wheel is connected to the grinding wheel feed unit, and the grinding wheel position controller is electrically connected to the grinding wheel feed unit; It is characterized in that The sharpening mechanism also includes a displacement laser sensor installed on the shredder, which is electrically connected or signal-connected to the grinding wheel position controller; the laser sensor is used to detect the displacement distance of the sharpening wheel in real time.

2. A blade sharpening mechanism for a shredder according to claim 1, characterized in that: The detection range of the laser sensor is less than 60 mm.

3. The blade sharpening mechanism of a shredder according to claim 1, characterized in that: The grinding wheel position controller includes an alarm module.

4. The blade sharpening mechanism of a shredder according to claim 1, wherein: The grinding wheel feeding unit comprises a grinding wheel sliding frame, the grinding wheel is in sliding cooperation with the grinding wheel sliding frame, and the grinding wheel position controller is used for controlling the grinding wheel to move along the grinding wheel sliding frame.

5. The blade sharpening mechanism of a shredder according to claim 1, characterized in that: The displacement laser sensor comprises at least an axial displacement laser sensor and a radial displacement laser sensor. The axial displacement laser sensor is used to detect the axial displacement of the grinding wheel, and the radial displacement laser sensor is used to detect the radial displacement of the grinding wheel.

6. The blade sharpening mechanism of a shredder according to claim 1, characterized in that: It also includes a blade displacement sensor for detecting the displacement distance of the blade on the knife roller, and the blade displacement sensor is electrically connected or signal-connected to the grinding wheel position controller.

7. The blade sharpening mechanism of a shredder according to claim 1, characterized in that: It also includes a knife door position sensor for detecting the position of the knife door, and the knife door position sensor is electrically connected or signal-connected to the grinding wheel position controller.

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