Cutting insert

Abstract

A cutting blade is composed of a blade body, a cutting blade body and a spring jacking device. Tooth grooves formed by racks are evenly distributed in a middle hole of the blade body, the tooth grooves are matched with the racks on the cutter shaft so that the blade body can be installed on the cutter shaft, the cutting tool bit is embedded in a clamping groove of the blade body, the top face of the cutting tool bit is matched with a right half arc of the blade body, and the cutting tool bit is concaved inwards to form a long cutting edge and a short cutting edge. The spring jacking device is composed of a jacking rod, a spring and a cushion column in sequence and arranged in the penetrating hole in the blade body, and the jacking rod extends into the cutting tool bit. When the cutting blade rotates to cut medicinal material decoction pieces, under the action of cutting pressure, the medicinal material decoction pieces can be compressed into the concave notch in the front portion of the tool bit and can compress the spring jacking device at the same time, after cutting is completed, the cutting pressure disappears, the medicinal material decoction pieces in the concave notch of the tool bit are jacked out through the spring jacking device, and blockage is avoided. The blade is specially used for cutting and processing liana medicinal material decoction pieces.

Description

Technical Field

[0001] The utility model relates to a cutting knife for traditional Chinese medicinal materials, in particular to a cutting blade dedicated to the cutting of medicinal slices of vine plants. Background Art

[0002] The processing of traditional Chinese medicinal materials is divided into three processes: cleaning, cutting and processing. Among them, cutting mainly uses five types of tools: splitting, slicing, planing, rubbing and planing. Circular cutting blades are easy to mechanize, so they play an important role in cutting processing.

[0003] Existing circular saw blades have the following tooth shapes: 1. Left and right teeth: Each saw tooth has a chamfer of 1 / 3, mainly used for sawing wood materials. The saw teeth are separated left and right to form a saw kerf. 2. Vertical cutting teeth: The rake angle of the tooth shape is 15° - 13°, mainly used for cutting the vertical fibers of materials. 3. Universal teeth: Its front inclined surface is used for cross-cutting wood fibers. There are also conical teeth (used in the slot saw blades of panel saws. When sawing double-sided veneer artificial boards, the slot saw completes the grooving processing of the bottom surface, and the main saw completes the sawing processing of the board), flat teeth (used for sawing ordinary wood), trapezoidal teeth (used in combination with flat teeth, suitable for sawing double-sided veneer artificial boards), etc. Since most traditional Chinese medicinal materials are fibrous materials with small bulk density and various shapes, the above circular saw blades are not suitable for cutting such traditional Chinese medicinal materials. The cutting and processing of existing vine plant traditional Chinese medicinal materials mainly still use traditional Chinese medicine chopping knives, scissors, etc., which have the disadvantages of manual operation, high labor intensity, low production efficiency and difficulty in realizing automation. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a cutting blade, which is dedicated to the cutting processing of vine plant traditional Chinese medicinal materials, not easy to block materials, has high cutting efficiency, and is easy to realize mechanization and automation.

[0005] The object of the present utility model is to provide a cutting blade, which is characterized in that it consists of a blade body, a cutting tool head and a spring supporting device. A middle hole is opened on the blade body, and tooth grooves formed by racks are evenly distributed on the circumference of the middle hole. The tooth grooves are used to match with the racks on the tool shaft to install the blade body on the tool shaft. The outer shape of the blade body is a closed curve: the right curve is an arc close to or equal to half an arc formed counterclockwise with the center of the middle hole and a larger radius starting from the 270-degree point; the left curve is an arc greater than or equal to half an arc formed clockwise with a smaller radius starting from the 270-degree point and extending longitudinally to the end point of the right curve, and a card slot for embedding the cutting tool head is provided at the adjacent position of the left curve and the right curve; the cutting tool head has a long cutting edge and a short cutting edge formed by inward depression and a V-shaped opening with one long and one short at the top formed by inward depression; the cutting tool head is embedded on the card slot of the blade body, and the top curve of the cutting tool head and the right curve of the blade body are both on the circumference of the same center of the circle; the structure of the spring supporting device is: the ejector rod is integrally composed of a disc-shaped large head and a round rod. There is a through hole on the cushion column. The spring is placed or fixed between the disc-shaped large head of the ejector rod and the cushion column. The spring supporting device is inserted from the through hole on the blade body. The rear arc surface of the cushion column coincides with the outer surface of the blade body, and then it is fixed on the blade body by using a pin or a bolt through the fixing hole on the blade body and the through hole of the cushion column, and the round rod of the ejector rod extends movably into the concave notch formed by the long cutting edge and the short cutting edge of the cutting tool head.

[0006] A plurality of rotational center of gravity balance holes are opened on the blade body.

[0007] When the cutting blade rotates to cut the medicinal material slices under the drive of the tool shaft, under the action of the cutting pressure, the medicinal material slices will be compressed into the front concave notch of the blade tool head. At the same time, the medicinal material slices will compress the spring supporting device. When the cutting is completed, the cutting pressure disappears, and the medicinal material slices in the concave notch of the cutting tool head are ejected by the spring supporting device to avoid blockage.

[0008] Compared with the prior art, the present utility model has the following technical features and advantages

[0009] 1. Technical features of the cutting blade:

[0010] ⑴. The middle hole of the blade is distributed with uniform racks, corresponding to the racks on the tool shaft. The spacing of the racks matches the designed deflection angle of the blade installed on the tool shaft, which is conducive to installing the blade on the tool shaft according to the designed deflection angle.

[0011] ⑵. The cutting edge of the cutting blade is V-shaped, with one side of the V being long and the other side being short. When cutting the medicinal material slices, the long cutting edge of the cutting edge first contacts and cuts the medicinal material slices, and the short cutting edge then contacts and cuts the medicinal material slices. Thus, the stress condition of the cutting blade can be effectively reduced and the power consumption can be saved.

[0012] (3) Since the woody fibers of the medicinal slices of liana plants are relatively heavy and prone to clogging the cutting edge, a spring support device is provided inside the cutting edge to prevent the medicinal slices after cutting into small pieces from clogging the cutting edge.

[0013] 2. High cutting efficiency: The cutting edges of traditional cutting blades are mostly flat or beveled. Due to the relatively heavy woody fibers of the medicinal slices of liana plants, it is difficult for flat or beveled cutting blades to achieve the expected cutting effect. The design of the long and short sides of the V-shaped cutting edge can effectively reduce the force on the cutting blade, saving power consumption and improving the cutting efficiency at the same time.

[0014] 3. Not easy to clog: The angle of the V-shaped cutting edge is prone to clogging during the cutting of medicinal slices. A spring support device is provided inside the cutting edge of the cutting blade, which can effectively prevent the cutting effect from deteriorating due to clogging of the cutting edge.

[0015] 4. Design novelty: The design of the V-shaped long and short side cutting heads of the cutting blade is both beautiful and practical. While ensuring the cutting effect of the medicinal slices, it also takes into account reducing power consumption, which is relatively reasonable. Description of the Drawings

[0016] Figure 1 Figure 2 Figure 4 They are respectively the front view, top view and three-dimensional view of this cutting blade.

[0017] Figure 3 is Figure 2 The sectional view along line A-A.

[0018] Figure 5 Figure 7 They are respectively Figure 2 The front view and three-dimensional view of the shown spring support device.

[0019] Figure 6 is Figure 5 The sectional view along line A-A. Detailed Implementation Manner

[0020] Figure 4It is shown that it is composed of a blade body 1, a cutting tool head 2 and a spring support device 3. There is a central hole in the blade body. Tooth grooves formed by racks 1e are evenly distributed on the circumference of the central hole. These tooth grooves are used to match with the racks on the tool shaft to install the blade body on the tool shaft. The outer shape of the blade body is a closed curve: the right curve is an arc close to or equal to half a circle formed counterclockwise with the center 1a of the central hole and a larger radius starting from the 270-degree point. The left curve is an arc larger than or equal to half a circle formed clockwise with a smaller radius starting from the 270-degree point and extending longitudinally to the end point of the right curve. And there is a card slot 1d for the cutting tool head to be embedded at the adjacent part of the left curve and the right curve; the cutting tool head 2 has a long cutting edge 2a and a short cutting edge 2b formed by inward depression and a V-shaped opening with one long and one short at the top formed by inward depression; the cutting tool head is embedded on the card slot 1d of the blade body. The top curve of the cutting tool head and the right curve of the blade body are both on the circumference of the same center; the structure of the spring support device 3 is: the ejector rod 3a is integrally composed of a disc-shaped large head and a round rod. There is a through hole 3c1 on the cushion column 3c. The spring 3b is placed or fixed between the disc-shaped large head of the ejector rod and the cushion column. The spring support device is inserted into the through hole 1f on the blade body 1. The rear arc surface of the cushion column fits with the outer surface of the blade body. Then it is fixed on the blade body by a pin or a bolt through the fixing hole 1b on the blade body and the through hole 3c1 of the cushion column. And the round rod of the ejector rod 3a extends into the concave notch formed by the long cutting edge and the short cutting edge of the cutting tool head movably. See Figure 7 Figure 2 , a V-shaped opening with one long side and one short side is formed at the top of the cutting tool head, Figure 3 There are three rotating center balance holes 1c on the blade body 1 in the figure to make the whole center of gravity of the cutting blade located at the center of the central hole, so that the cutting blade is more stable during rotary cutting.

[0021] When the cutting blade rotates to cut the medicinal material slices driven by the tool shaft, under the action of the cutting pressure, the medicinal material slices will be compressed into the front concave notch of the blade tool head. At the same time, the medicinal material slices will compress the spring support device. When the cutting is completed, the cutting pressure disappears, and the medicinal material slices in the concave notch of the cutting tool head are ejected by the spring support device to avoid blockage.

[0022] Working process

[0023] The cutting blade rotates under the drive of the tool shaft. The long side of the V-shaped cutting head first contacts and cuts the medicinal material slices, and the short side then contacts and cuts the medicinal material slices, which can break the medicinal material slices with larger external dimensions into small-sized medicinal material slices with basically the same size. When the cutting edge of the cutting blade cuts the medicinal material slices, under the action of the cutting pressure, the medicinal material slices will be compressed into the concave notch of the cutting edge. At the same time, the medicinal material slices will also compress the spring support device. When the cutting is completed, the cutting pressure disappears, and the medicinal material slices at the concave notch of the cutting edge are ejected by the spring support device to avoid blockage and affect the next cutting of the cutting blade.

[0024] The long cutting edge and the short cutting edge of the cutting head are parallel, and the included angle between the long cutting edge and the tangent line passing through the intersection point of the long cutting edge on the curved surface of the blade body is 60 to 120 degrees.

Claims

1. A cutting insert, characterized in that: The invention comprises a blade body (1) and a cutting head (2). The blade body has a central hole. The central hole has tooth grooves formed by tooth bars (1e) evenly distributed on the circumference. The tooth grooves are used to match the tooth bars on the blade shaft so as to mount the blade body on the blade shaft. The outer shape of the blade body is a closed curve: the right curve is formed by taking the central hole center (1a) and the larger radius and taking the 270 degree point as the starting point and extending in the counterclockwise direction to form a nearly half arc or equal to a half arc; the left curve is formed by taking the 270 degree point as the starting point and extending in the counterclockwise direction to form a smaller radius and extending in the counterclockwise direction to form a half arc; The clockwise direction forms an arc greater than or equal to half an arc and extends longitudinally to the end point of the right curve, and a groove (1d) for the cutting head to be embedded is provided at the junction of the left curve and the right curve; the cutting head (2) has a long cutting edge (2a) and a short cutting edge (2b) formed by being recessed inwards, and a V-shaped opening with one long and one short at the top formed by being recessed inwards; the cutting head is embedded in the groove (1d) of the blade body, and the top curve of the cutting head and the right curve of the blade body are both located on a circumference with the same center.

2. A cutting insert according to claim 1, characterized in that: The invention also comprises a spring supporting device (3), the structure of which is as follows: the push rod (3a) is composed of a disc-shaped large head and a round rod in an integrated manner, a through hole (3c1) is provided on a cushion column (3c), a spring (3b) is arranged or fixedly connected between the disc-shaped large head of the push rod and the cushion column, the spring supporting device is inserted through a through hole (1f) on a blade body (1), a rear arc surface of the cushion column matches the outer surface of the blade body, and then the spring supporting device is fixed to the blade body by a pin or a bolt through a fixing hole (1b) on the blade body and a through hole (3c1) of the cushion column, and the round rod of the push rod (3a) is movably extended into a recessed notch formed by a long cutting edge and a short cutting edge of a cutting head.

3. A cutting insert according to claim 1, characterized in that: The blade body is provided with a plurality of rotation center of gravity balance holes (1c).

4. A cutting insert according to claim 1 or claim 2, characterized in that: When the cutting blade rotates and cuts the medicinal materials under the drive of the blade shaft, the medicinal materials will be compressed into the front concave groove of the blade head under the action of cutting pressure. At the same time, the medicinal materials will be compressed by the spring supporting device. When the cutting is completed, the cutting pressure disappears, and the medicinal materials in the concave groove of the cutting head are pushed out by the spring supporting device to avoid blockage.

5. A cutting insert according to claim 4, characterized in that: The long edge and the short edge of the cutting tool head are parallel, and the angle between the long edge and the tangent line of the intersection of the long edge on the curved surface of the blade body is 60 to 120 degrees.

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