Cutter for cutting stems of tobacco leaves

Abstract

The utility model discloses a tobacco leaf stem cutting cutter which comprises a first blade and a second blade which are symmetrically arranged, a first cutting edge is formed at the peripheral edge of the first blade, a second cutting edge is formed at the peripheral edge of the second blade, a gear cutter is arranged between the first blade and the second blade, the gear cutter comprises a cutter holder, and the cutter holder is provided with a first cutting edge and a second cutting edge. The tool bits are arranged on the periphery of the tool apron at intervals, the interval between every two adjacent tool bits and the inner wall of the first blade and the inner wall of the second blade jointly form a chip containing groove with an opening in the top, and third cutting edges connected between the first cutting edges and the second cutting edges are formed in the tops of the tool bits. The two sides of each third cutting edge are connected with the first cutting edge and the second cutting edge respectively, and each third cutting edge is flush with the first cutting edge and the second cutting edge on the two sides of the third cutting edge. According to the scheme, the flatness of the tobacco cutting position can be ensured, meanwhile, cutter abrasion is avoided, the machining precision is improved, and cutter blockage is avoided.

Description

Technical Field

[0001] The utility model relates to the field of tobacco leaf processing equipment, in particular to a tool for cutting tobacco leaf stems. Background Art

[0002] During the tobacco leaf cutting process, the tobacco stem part is hard, so it is usually necessary to cut the tobacco stem part and process the tobacco leaf and the tobacco stem separately. Especially for the cutting of cigar tobacco stems, since cigar tobacco leaves are large and expensive, the tobacco stems are usually chopped into shredded tobacco after cutting the cigar tobacco leaves to improve the utilization rate of tobacco leaves. The existing tobacco leaf stem cutting tools usually only have the function of separating the tobacco stems from the tobacco leaves, and cannot process the tobacco stems at the same time.

[0003] To solve the above problems, the utility model patent with authorization announcement number CN219515273U provides a tobacco stem cutting gear knife, which separates tobacco leaves and stems through teeth on both sides, and controls the length of cut stems through the blade of the gear-shaped blade in the middle. While the tobacco stem cutting gear knife rotates, the blade of the gear-shaped blade can also cut the tobacco stems to improve processing efficiency. However, this tool still has the following problems: 1. The blade of the gear-shaped blade is different from the tooth height of the teeth of the teeth on both sides. After the teeth on both sides contact the tobacco leaves, the tool needs to be further pressed down to ensure that the teeth cut the tobacco stems. Therefore, in actual use, the tobacco stems are prone to be unable to be effectively chopped, resulting in an increase in the subsequent tobacco stem processing steps and reduced processing efficiency; 2. The teeth on both sides cut the tobacco leaves through the teeth, and tooth grooves are formed on both sides of the teeth. Therefore, the cutting height of the outer periphery of the tooth piece is uneven. In the processing of some tobacco leaves that require high-precision technology, the flatness of the separation position of the tobacco leaves and the tobacco stems is required to be high, but there are a large number of transverse ribs distributed on both sides of the tobacco stems, and the sizes of the tobacco leaves are different. Most of the tobacco leaves are uneven in shape. The tooth groove structure of the tool tooth piece easily leads to uneven and uniform or incomplete cutting at the separation position of the tobacco leaves and the tobacco stems, affecting the appearance of the tobacco leaves and low work efficiency. During the cutting process, it will also cause the tobacco leaves to shift or the tobacco leaves / tool ​​vibration. The teeth are very easy to wear in long-term use, thereby shortening the service life of the tool. Utility Model Content

[0004] Therefore, in order to solve the above problems, the utility model provides a knife for cutting tobacco stems.

[0005] The utility model is realized by the following technical solutions:

[0006] A tool for cutting tobacco stems, comprising a first blade and a second blade symmetrically arranged, the first blade and the second blade are both circular blades, a first cutting edge is formed at the outer peripheral edge of the first blade, a second cutting edge is formed at the outer peripheral edge of the second blade, a gear cutter is arranged between the first blade and the second blade, the gear cutter comprises a cutter seat coaxially arranged with the first blade and the second blade, and at least two cutter heads arranged at intervals on the outer periphery of the cutter seat, a chip groove with a top opening is formed between the interval between two adjacent cutter heads and the inner walls of the first blade and the second blade, the bottom of the cutter head is connected to the cutter seat, and the top of the cutter head extends to the outside of the cutter seat and forms a third cutting edge connected between the first cutting edge and the second cutting edge at the top of the cutter head, the two sides of the third cutting edge are respectively connected to the first cutting edge and the second cutting edge, and each of the third cutting edges is flush with the first cutting edge and the second cutting edge on both sides thereof.

[0007] Preferably, a plurality of cutter heads of the same shape are arranged at equal angles on the outer periphery of the cutter seat of the gear cutter, so that the spacing distance between two adjacent third cutting edges is the same, and a plurality of chip grooves of the same size are formed.

[0008] Preferably, the blade seat of the gear blade and the blade head on the outer periphery of the blade seat are integrally formed.

[0009] Preferably, the third cutting edge is linearly connected to the first cutting edge and the second cutting edge.

[0010] Preferably, screw holes are correspondingly arranged on the knife seats of the first blade, the second blade and the gear knife, and the first blade, the second blade and the gear knife are fastened by screws passing through the screw holes.

[0011] Preferably, a first mounting seat is provided on the outer side of the first blade, a second mounting seat is provided on the outer side of the second blade, a positioning sleeve is provided on the inner side of the second mounting seat, and axial holes are provided on the first blade, the gear cutter and the second blade, and the positioning sleeve passes through the axial hole and is fixed to the inner side of the first mounting seat.

[0012] Preferably, a positioning bolt is provided on the first mounting seat, and the positioning bolt is coaxial with the first mounting seat.

[0013] Preferably, a positioning piece is further provided on the side wall of the positioning sleeve, and the axis of the positioning piece is perpendicular to the axis of the positioning sleeve.

[0014] The beneficial effects of the technical solution of the utility model are mainly reflected in:

[0015] 1. A gear cutter is arranged between the first blade and the second blade. The two sides of the third cutting edge of the gear cutter are respectively connected to the first cutting edge and the second cutting edge, which can be used to control the length of the cut stems. The cutting heights of the first cutting edge and the second cutting edge are consistent, which can avoid tobacco leaf / cutting tool vibration caused by uneven cutting height during the cutting process, ensure the flatness of the tobacco leaf cutting position, avoid tool wear, and extend the service life of the tool. Each third cutting edge is flush with the first cutting edge and the second cutting edge on both sides thereof, which can ensure that while the first cutting edge and the second cutting edge are cutting tobacco leaves on both sides of the tobacco stems, the third cutting edge can continuously chop the tobacco stems, and there will be no situation where the third cutting edge cannot contact the tobacco stems, which effectively improves the processing efficiency of tobacco leaves. The multiple third cutting edges are arranged at equal distances, which can ensure the uniformity of the cutting size of the tobacco stems and improve the processing accuracy.

[0016] 2. A chip groove to prevent clogging is formed between the interval between two adjacent cutter heads and the inner walls of the first blade and the second blade, which can accommodate some of the chopped tobacco stems during the stem cutting process. The top of the chip groove is open, and the chopped tobacco stems contained in the chip groove can fall out when the tool rotates to avoid clogging of the tool.

[0017] 3. The mounting groove on the first mounting seat and the axial holes on the second mounting seat, the first blade, the second blade and the gear cutter are used to connect the tool to the rotating shaft. At the same time, the tool is tightly connected to the rotating shaft through the positioning bolts coaxially arranged with the mounting groove and the positioning pin holes arranged on the side walls of the mounting groove, thereby ensuring that the tool can cut the tobacco stems quickly, stably and accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a stereoscopic image of a knife used for cutting tobacco stems in the first perspective;

[0019] Figure 2 It is a side view of a knife for cutting tobacco stems;

[0020] Figure 3 is a stereoscopic image of a knife for cutting tobacco stems from a second perspective;

[0021] Figure 4 It is a cross-sectional view of a knife used for cutting tobacco stems;

[0022] Figure 5 is a schematic diagram of the structure of a tobacco stem cutting tool (the second mounting base is omitted in this case);

[0023] Figure 6 It is a three-dimensional diagram of a gear cutter used in tobacco stem cutting. DETAILED DESCRIPTION

[0024] In order to make the purpose, advantages and features of the utility model more clearly and in detail, the following preferred embodiments are illustrated and explained through non-limiting descriptions. This embodiment is only a typical example of the application of the technical solution of the utility model. Any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection required by the utility model.

[0025] At the same time, it is stated that in the description of the scheme, it should be noted that the directions or positional relationships indicated by the terms "center", "up", "down", "left", "right", "front", "back", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0026] In addition, the terms "first" and "second" in this solution are only used for descriptive purposes and cannot be understood as indicating or implying the order of importance, or implicitly indicating the number of technical features shown. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In this utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] The utility model discloses a knife for cutting tobacco stems, such as Figure 1 , Figure 2 As shown, it includes a first blade 1 and a second blade 2 which are symmetrically arranged, both of which are circular blades, a first cutting edge 101 is formed at the peripheral edge of the first blade 1, and a second cutting edge 201 is formed at the peripheral edge of the second blade 2, the first cutting edge 101 and the second cutting edge 201 are symmetrically arranged, and are used for longitudinally cutting tobacco leaves on both sides of the tobacco stems, wherein the longitudinal direction refers to the length direction of the tobacco stems, the first cutting edge 101 and the second cutting edge 201 are both arc-shaped cutting edges, and the cutting height is consistent, which can effectively cut the transverse ribs near the tobacco stems, avoid tobacco leaf / tool ​​vibration caused by uneven cutting height during cutting, ensure the flatness of the tobacco leaf cutting position, and avoid tool wear.

[0028] like Figure 1 , Figure 2 , Figure 5 As shown in FIG. 1 , a gear cutter 3 is provided between the first blade 1 and the second blade 2, so that the tobacco stem cutting tool is wheel-shaped as a whole. Figure 6As shown, the gear cutter 3 includes a cutter seat 301 coaxially arranged with the first blade 1 and the second blade 2, and at least two cutter heads 302 spaced apart and arranged on the periphery of the cutter seat 301, wherein the bottom of the cutter head 302 is connected to the cutter seat 301, and the top thereof extends to the outside of the cutter seat 301 and forms a third cutting edge 303 connected between the first cutting edge 101 and the second cutting edge 201 on the top of the cutter head 302, and the two sides of the third cutting edge 303 are respectively connected to the first cutting edge 101 and the second cutting edge 201, and the cutter head 30 The third cutting edge 303 at the top is used for cutting tobacco stems horizontally. During the rotation of the cutter, the multiple cutter heads 302 continuously cut the tobacco stems to achieve further processing of the tobacco stems. When the tobacco stems reach the required cutting length, the cutter can be driven to leave the tobacco leaf surface, thereby controlling the cut stem length. Each of the third cutting edges 303 is flush with the first cutting edge 101 and the second cutting edge 201 on both sides thereof, thereby ensuring that the third cutting edge 303 contacts and effectively cuts the tobacco stems while the first cutting edge 101 and the second cutting edge 201 are cutting tobacco leaves.

[0029] like Figure 1-Figure 3 As shown, the interval between two adjacent cutter heads 302 and the inner walls of the first blade 1 and the second blade 2 together form a chip groove 4 with a top opening, and the chip groove 4 is located between the two adjacent cutter heads 302. When the cutter head 302 cuts tobacco stems, tobacco leaf fragments are brought into the chip groove 4 as the cutter rotates, thereby avoiding the tobacco leaf fragments from splashing. When the cutter rotates and drives the opening of the chip groove 4 downward, the tobacco leaf fragments in the chip groove 4 fall down, thereby completing the recovery and simultaneously completing the cleaning of the chip groove 4.

[0030] like Figure 1 , Figure 5 As shown, in some embodiments, a plurality of cutter heads 302 of the same shape are arranged at equal angles on the periphery of the cutter seat 301 of the gear cutter 3. At this time, the spacing distance between two adjacent third cutting edges 303 is the same, which can ensure the consistency of the lateral cutting distance of the tobacco stems, thereby ensuring the accuracy and stability of the tobacco stem cutting, and obtaining tobacco with relatively similar length and width. At the same time, a plurality of chip grooves 4 of the same size can be formed on the periphery of the tool to ensure the stability of the tool at all locations.

[0031] like Figure 5 As shown, in some embodiments, the blade seat 301 of the gear cutter 3 and the blade head 302 on the periphery of the blade seat 301 are integrally formed, thereby improving the firmness and stability of the combination of various structures of the gear cutter 3 and avoiding the loosening of the blade head 302 due to long-term use.

[0032] like Figure 1 , Figure 2As shown, in some embodiments, the third cutting edge 303 is connected to the first cutting edge 101 and the second cutting edge 201 in a straight line, forming a plurality of H-shaped cutting edges on the periphery of the tool, and further ensuring the flatness of the tobacco stem cutting surface. In some other embodiments, the third cutting edge 303 can also be tilted between the first cutting edge 101 and the second cutting edge 201 according to the requirements of the tobacco stem cutting shape, which will not be elaborated here.

[0033] like Figure 3-Figure 5 As shown, in some embodiments, screw holes are correspondingly arranged on the knife seat 301 of the first blade 1, the second blade 2 and the gear knife 3, and the first blade 1, the second blade 2 and the gear knife 3 are fastened by screws 5 passing through the screw holes. There may be multiple screw holes on the knife seat 301 of the first blade 1, the second blade 2 and the gear knife 3. In one embodiment, two screw holes are symmetrically arranged on the knife seat 301 of the first blade 1, the second blade 2 and the gear knife 3, and each screw hole is fastened by a screw 5, thereby ensuring the stability of the connection between the blades.

[0034] like Figure 1-Figure 5 As shown, in some embodiments, a first mounting seat 6 is provided on the outer side of the first blade 1, and a second mounting seat 7 is provided on the outer side of the second blade 2, wherein the outer sides of the first blade 1 and the second blade 2 refer to the sides away from the gear cutter 3, and the inner sides refer to the sides of the first blade 1 and the second blade 2 close to the gear cutter 3, and a positioning sleeve 701 is provided on the inner side of the second mounting seat 7, and the first blade 1, the gear cutter 3 and the second blade 2 are all provided with an axial hole 10, and the positioning sleeve 701 is coaxial with the first blade 1, the gear cutter 3 and the second blade 2, so that the positioning sleeve 701 passes through the axial hole 10 and is fixed to the inner side of the first mounting seat 6, wherein the positioning sleeve 701 is interference fit with the first mounting seat 6 or is fixed by screw fastening or the like, which will not be repeated here, and the positioning sleeve 701 is used to connect the rotating shaft that drives the tool to rotate, wherein a positioning bolt 8 is passed through the first mounting seat 6, and the positioning bolt 8 is coaxial with the first mounting seat 6 and is used to fix the end of the rotating shaft.

[0035] like Figure 3 , Figure 4 As shown, in order to further fix the tool on the rotating shaft, a positioning member 9 is further provided on the side wall of the positioning sleeve 701, and the axis of the positioning member 9 is perpendicular to the axis of the positioning sleeve 701, thereby ensuring that the positioning member 9 abuts against the outer periphery of the rotating shaft, thereby improving the stability of the connection of the tool on the rotating shaft; in some embodiments, the positioning member 9 is a positioning pin, and a pin hole corresponding to the position of the positioning pin can be provided on the rotating shaft, thereby further improving the tightness of the connection between the tool and the rotating shaft.

[0036] There are many implementation methods of the utility model, and all technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of the utility model.

Claims

1. A tool for cutting tobacco stems, characterized in that: The invention comprises a first blade and a second blade which are symmetrically arranged, wherein the first blade and the second blade are both circular blades, a first cutting edge is formed at the peripheral edge of the first blade, a second cutting edge is formed at the peripheral edge of the second blade, a gear cutter is arranged between the first blade and the second blade, the gear cutter comprises a cutter seat which is coaxially arranged with the first blade and the second blade, and at least two cutter heads which are arranged at intervals at the periphery of the cutter seat, a chip groove with a top opening is formed between the interval between two adjacent cutter heads and the inner walls of the first blade and the second blade, the bottom of the cutter head is connected to the cutter seat, the top of the cutter head extends to the outside of the cutter seat and forms a third cutting edge connected between the first cutting edge and the second cutting edge at the top of the cutter head, the two sides of the third cutting edge are respectively connected to the first cutting edge and the second cutting edge, and each of the third cutting edges is flush with the first cutting edge and the second cutting edge on both sides thereof.

2. The tobacco stem cutting tool according to claim 1, characterized in that: The outer periphery of the tool seat of the gear cutter is provided with a plurality of cutter heads of the same shape at equal angles, so that the interval distance between two adjacent third cutting edges is the same, and a plurality of chip grooves of the same size are formed.

3. The tobacco stem cutting tool according to claim 1, characterized in that: The blade seat of the gear blade and the blade head on the outer periphery of the blade seat are integrally formed.

4. The tobacco stem cutting tool according to claim 1, characterized in that: The third cutting edge is connected to the first cutting edge and the second cutting edge in a straight line.

5. The tobacco stem cutting tool according to claim 1, characterized in that: Screw holes are correspondingly arranged on the knife seats of the first blade, the second blade and the gear knife, and the first blade, the second blade and the gear knife are fastened by screws passing through the screw holes.

6. The tobacco stem cutting tool according to claim 1, characterized in that: A first mounting seat is arranged on the outer side of the first blade, a second mounting seat is arranged on the outer side of the second blade, a positioning sleeve is arranged on the inner side of the second mounting seat, and axial holes are arranged on the first blade, the gear cutter and the second blade. The positioning sleeve passes through the axial hole and is fixed to the inner side of the first mounting seat.

7. The tobacco stem cutting tool according to claim 6, characterized in that: A positioning bolt is passed through the first mounting seat, and the positioning bolt is coaxial with the first mounting seat.

8. The tobacco stem cutting tool according to claim 6, characterized in that: A positioning piece is also provided on the side wall of the positioning sleeve, and the axis of the positioning piece is perpendicular to the axis of the positioning sleeve.

Images