Mini word knife

Abstract

The utility model discloses a mini character cutter, which relates to the field of mechanical cutters, and comprises a cutter body, a plurality of rotary cutting surfaces are arranged at the end part of the cutter body, and a rotary cutting edge is formed at the joint of the plurality of rotary cutting surfaces; when the cutter body carries out lettering or cutting, an object is cut by the rotary cutting edge, generated chippings can be just discharged along the chip groove which is concave inwards, the chippings can gather towards the interior of the chip groove and be discharged in the direction of the chip groove when formed, and the chipping discharging position can be far away from the lettering or cutting position; the lettering or cutting precision cannot be influenced; the mode that when a plane type rotary cutting face is used, chippings are prone to being diffused towards the outside of the cutter body and accumulated near the lettering or cutting position is replaced.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical cutter technical field, concretely relates to a mini character cutter. BACKGROUND

[0002] Mini character cutter is mainly used for carving and cutting work, and is especially suitable for processing high-precision small parts and other devices.

[0003] However, the existing mini character cutter can remove chips when carving or cutting work, but the chips are usually accumulated around the cutter head, affecting the precision of carving or cutting work.

[0004] Therefore, the utility model provides a mini character cutter to solve the above problems. UTILITY MODEL CONTENTS

[0005] In view of the problems existing in the prior art, the utility model provides a mini character cutter to solve the problem that the rotating cutting surface is usually a plane, although it can remove chips, but the chips are usually accumulated around the cutter head, affecting the precision of carving or cutting work.

[0006] In order to achieve the above purpose, the utility model adopts a mini character cutter, which comprises a cutter body, the end of the cutter body is provided with a rotating cutting surface, the rotating cutting surface is provided with a plurality of rotating cutting surfaces, and the connecting part of the plurality of rotating cutting surfaces forms a rotating cutting edge.

[0007] The end of the cutter body close to the rotating cutting surface is provided with a plane, and the edge and corner of the plane are provided with a convex.

[0008] The side of the rotating cutting edge close to the rotating cutting surface forms an inwardly recessed chip removal groove.

[0009] As a further optimization of the above scheme, the single-side taper of the rotating cutting edge is 15°.

[0010] As a further optimization of the above scheme, the rotating cutting angle of the rotating cutting surface is 30°.

[0011] As a further optimization of the above scheme, the convex is provided with a plurality of convexes, and the plurality of convexes are distributed at equal angles.

[0012] As a further optimization of the above scheme, the convex comprises at least one of trapezoidal, triangular and arc-shaped blocks.

[0013] As a further optimization of the above scheme, the cutter body comprises a cutter head and a cutter handle, the cutter head is fixedly provided with a clamping column at one end close to the cutter handle, the cutter handle is provided with a clamping groove at one end close to the cutter head, the clamping column is movably inserted into the clamping groove, the outer circle of the clamping column is provided with a plurality of receiving grooves, the receiving grooves are equiangularly distributed along the axis of the clamping column, the receiving grooves are fixedly provided with elastic sheets on the inner wall of one end away from the cutter head, and the clamping groove is provided with a clamping inclined groove on the inner wall of one end away from the cutter head.

[0014] As a further optimization of the above scheme, the cutter handle is provided with a circular hole corresponding to the clamping inclined groove, one end of the circular hole penetrates the outer circle of the cutter handle, and the other end of the circular hole is in communication with the inside of the clamping inclined groove.

[0015] The mini character cutter has the following beneficial effects:

[0016] The mini character cutter has the following beneficial effects:

[0017] The cutter body cuts the object by the rotary cutting edge when the character is engraved or cut, and the generated debris can be discharged along the inwardly recessed chip removal groove, the debris can be gathered into the chip removal groove and discharged along the direction of the chip removal groove when the debris is formed, and the debris discharge position can be away from the character engraving or cutting position; the accuracy of the character engraving or cutting is not affected; the method of using the flat rotary cutting surface is replaced, and the debris is easily diffused to the outside of the cutter body and accumulated near the character engraving or cutting position;

[0018] The different protrusions are used to contact the object, so that the recess groove formed by the character engraving or cutting has different shapes, and the cutter can be used for processing various characters or recess grooves without replacing the cutter, thereby saving costs;

[0019] When the cutter head is damaged, only the cutter head needs to be replaced, and the whole cutter does not need to be replaced, which is more suitable for the case that the cutter head of the existing cutter is easily damaged.

[0020] The specific embodiments of the utility model are disclosed in detail with reference to the description and drawings below, the principle of the utility model is indicated, and the utility model can be used in the way, and it should be understood that the embodiments of the utility model are not limited in scope, and the embodiments of the utility model include many changes, modifications and equivalents within the scope of the appended claims and clauses. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the structure schematic view of mini letter cutter of the utility model;

[0022] Figure 2 It is the end section view of cutter body of the utility model;

[0023] Figure 3 It is the end surface structure schematic view of cutter body in embodiment 2 of the utility model;

[0024] Figure 4 It is the structure schematic view of mini letter cutter in embodiment 3 of the utility model.

[0025] In the drawing: 1, cutter body; 2, rotary cutting surface; 3, rotary cutting edge; 101, plane; 102, protrusion;

[0026] 11, cutter head; 111, clamping column; 112, elastic sheet; 113, storage groove; 12, cutter handle; 121, round hole; 122, clamping inclined groove; 123, clamping groove; 301, chip removal groove. DETAILED DESCRIPTION

[0027] In embodiment 1, please refer to the structure schematic view of mini letter cutter in the description of the utility model; Figures 1-4 The utility model provides a technical scheme: a kind of mini letter cutter, comprising: cutter body 1, the end of cutter body 1 is provided with rotary cutting surface 2, the setting of rotary cutting surface 2 makes that cutter body 1 is smooth when inscribing or cutting chip.

[0028] In actual use, rotary cutting surface 2 can be provided with two, three or more, and the joint between adjacent rotary cutting surfaces 2 forms rotary cutting edge 3, which is suitable for processing various recessed angles, such as making the recess of the font more three-dimensional when inscribing, with artistic atmosphere.

[0029] In order to improve the service life of cutter body 1, a plane 101 is provided on one end of cutter body 1 near rotary cutting surface 2, which replaces the sharp corner setting, reduces wear when contacting objects, and ensures the smooth formation of recesses on the surface of objects due to the small contact area between plane 101 and the object.

[0030] A protrusion 102 is provided at the corner of plane 101, which can also be used to process various angles of recesses. Further, an inwardly recessed chip removal groove 301 is formed on one side of rotary cutting edge 3 near rotary cutting surface 2, cutter body 1 cuts objects when inscribing or cutting, and the generated debris can be discharged along the inwardly recessed chip removal groove 301, the debris can be gathered inside the chip removal groove 301 and discharged along the direction of the chip removal groove 301 when forming, and the debris discharge position can be away from the inscribing or cutting position; without affecting the precision of inscribing or cutting; instead of the method of using a flat rotary cutting surface, which causes debris to spread outwardly and accumulate near the inscribing or cutting position.

[0031] It should be noted that the single-sided taper of the rotary cutting edge 3 is 15°; the rotary cutting angle of the rotary cutting surface 2 is 30°.

[0032] In Example 2, reference Figure 3 As shown, multiple protrusions 102 are provided, and the multiple protrusions 102 are distributed at equal angles. The protrusions 102 can be set as trapezoidal, triangular or arc-shaped blocks. By using different protrusions 102 to contact the object, the groove shape formed by engraving or cutting can be different. It can be used for processing various fonts or grooves without changing the tool, saving costs and being simple and practical.

[0033] In Example 3, reference Figure 4 As shown, the blade body 1 includes a blade head 11 and a handle 12. A retaining post 111 is fixedly provided at one end of the blade head 11 near the handle 12. A retaining groove 123 is provided at one end of the handle 12 near the blade head 11. The retaining post 111 is movably inserted into the retaining groove 123. A receiving groove 113 is provided on the outer ring of the retaining post 111. Multiple receiving grooves 113 are provided and are distributed at equal angles along the axis of the retaining post 111. An elastic piece 112 is fixedly provided on the inner wall of the end of the receiving groove 113 away from the blade head 11. An engaging groove 122 is provided on the inner wall of the end of the retaining groove 123 away from the blade head 11. The elastic piece 112 engages in the engaging groove 122. A round hole is provided on the handle 12. 121, the round hole 121 is correspondingly set with the engaging groove 122. One end of the round hole 121 passes through the outer ring of the tool holder 12, and the other end of the round hole 121 communicates with the inside of the engaging groove 122. When installing the tool body 1, the retaining post 111 at the end of the tool head 11 is inserted into the retaining groove 123 on the end face of the tool holder 12. The elastic piece 112 can be engaged in the engaging groove 122 by its own elasticity. There are multiple elastic pieces 112, which can stably limit the tool head 11 and the tool holder 12, realizing the splicing of the tool head 11 and the tool holder 12. When the tool head 11 is damaged, only the tool head 11 needs to be replaced. There is no need to replace the entire tool. It is more suitable for the situation where the existing tool head 11 is easily damaged.

[0034] It should be noted that the elastic sheet 112 has high elasticity. When multiple elastic sheets 112 are engaged in the corresponding engagement grooves 122, the cutter head 11 and the cutter handle 12 will be relatively locked and fixed, which will not affect the engraving and cutting work.

[0035] When disassembling the blade head 11, use a tool such as a chuck to insert into the round hole 121 and press the elastic piece 112 against the storage groove 113. The blade head 11 and the handle 12 can then be separated, making it convenient to use.

Claims

1. A mini letter opener characterized by, The utility model relates to a rotary cutting tool, including: A cutter body (1) is provided with rotary cutting surfaces (2) at the end thereof, a plurality of rotary cutting surfaces (2) are provided, and the junctions of the plurality of rotary cutting surfaces (2) form rotary cutting edges (3); The cutter body (1) is provided with a flat surface (101) at one end close to the rotary cutting surfaces (2), and a protrusion (102) is arranged at the corner of the flat surface (101); One side of the rotary cutting edge (3) close to the rotary cutting surface (2) forms an inwardly recessed chip removal groove (301).

2. A mini letter opener according to claim 1, characterized in that: The single-side taper of the rotary cutting edge (3) is 15 degrees.

3. The mini letter opener according to claim 1, wherein: The rotary cutting angle of the rotary cutting surface (2) is 30 degrees.

4. The mini letter opener of claim 1, wherein: The protrusion (102) is arranged in a plurality of equal-angle distribution forms.

5. The mini letter opener according to claim 1, wherein: The protrusion (102) comprises at least one of a trapezoidal shape, a triangular shape, and an arc-shaped block shape.

6. The mini letter opener of claim 1, wherein: The cutter body (1) comprises a cutter head (11) and a cutter handle (12), the cutter head (11) is fixedly provided with a clamping column (111) at one end close to the cutter handle (12), the cutter handle (12) is provided with a clamping groove (123) at one end close to the cutter head (11), the clamping column (111) is movably inserted into the clamping groove (123), the outer ring of the clamping column (111) is provided with a receiving groove (113), the receiving groove (113) is arranged in a plurality of equal-angle distribution forms along the axis of the clamping column (111), the receiving groove (113) is fixedly provided with an elastic sheet (112) on the inner wall of one end away from the cutter head (11), the clamping groove (123) is provided with a clamping inclined groove (122) on the inner wall of one end away from the cutter head (11), and the elastic sheet (112) is clamped in the clamping inclined groove (122).

7. A mini letter opener according to claim 6, wherein: The cutter handle (12) is provided with a round hole (121), the round hole (121) is arranged in correspondence with the clamping inclined groove (122), one end of the round hole (121) penetrates the outer ring of the cutter handle (12), and the other end of the round hole (121) is in communication with the inside of the clamping inclined groove (122).

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