CN213371635U - Cutter placing part and cutter holder - Google Patents

Abstract

The application discloses put sword portion and blade holder, wherein it includes to put sword portion: a frame body; the cutter inserting beams are arranged in the frame body at intervals and are connected with the inner wall of the frame body, and an inserting gap for inserting a cutter is formed between every two adjacent cutter inserting beams; the clamping rows are arranged at the bottoms of the slotting tool beams, the clamping rows between the adjacent slotting tool beams are also adjacent, and the clamping rows are provided with a plurality of elastic sheets arranged at intervals along the length direction of the slotting tool beams; the elastic sheets of adjacent clamping rows are distributed in a staggered way. The elastic pieces of each clamping row are arranged at intervals, and the elastic pieces of adjacent clamping rows are distributed in a staggered mode, so that enough space is reserved between the elastic pieces, and when a cutter falls, the cutter point of the cutter can be prevented from being stuck to damage the cutter point or the cutter edge.

Description

Cutter placing part and cutter holder

Technical Field

The application relates to the technical field of kitchen utensils, in particular to a knife placing part and a knife holder.

Background

The knife holder is a common tool combination in a kitchen and has the function of accommodating knives and scissors with various sizes.

The structure mainly comprises: the tool rest comprises a plurality of elastic tool rest beams, an insertion gap is formed between the tool rest beams, and an elastic component is arranged at the lower part of the tool rest beams. The effect of fixing the cutter is achieved by matching the elastic component at the lower end of the cutter holder beam. However, the prior tool apron still has the defects that: because the elastic components are arranged oppositely, gaps among the elastic components are also distributed oppositely, a tiny gap space is formed, when the cutter is inserted, the cutter point and the cutter edge are easy to slide into the gap space to block the insertion of the cutter, the structure of the cutter point and the cutter edge is easy to damage, and the service life of the cutter is shortened.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of the present invention is to provide a tool holder and a tool tip, which can solve the problem that the tool tip and the tool edge of the tool are easily damaged.

In order to achieve the above technical object, the present application provides a knife placing part, including:

a frame body;

the cutter inserting beams are arranged in the frame body at intervals and are connected with the inner wall of the frame body, and an inserting gap for inserting a cutter is formed between every two adjacent cutter inserting beams;

the clamping rows are arranged at the bottoms of the cutter inserting beams, the clamping rows between the adjacent cutter inserting beams are also adjacent, and the clamping rows are provided with a plurality of elastic sheets arranged at intervals along the length direction of the cutter inserting beams;

the elastic sheets of the adjacent clamping rows are distributed in a staggered manner.

Further, the slotting tool beam comprises a guide part;

the guide parts are provided with guide inclined planes, and the insertion gap formed between the guide parts of the adjacent cutter insertion beams is reduced from top to bottom;

the inclined plane area at the top end of the guide inclined plane extends towards the inside of the insertion gap to form an arc surface.

Further, the width of the space between the adjacent elastic sheets of the clamping row is not larger than the width of the elastic sheets.

Further, the elastic piece includes a ramp portion;

one end of the sliding inclined part is connected with the tail end of the guide part of the slotting tool beam, and the elastic piece is connected with the slotting tool beam through the sliding inclined part;

the side face of the inclined sliding part close to the insertion gap is a transition side face, and the transition side face extends along the inclined plane angle direction of the guide inclined plane of the guide part.

Further, the elastic piece further comprises a clamping part;

one end of the clamping part is connected with the tail end of the inclined part of the elastic sheet;

the side surface of the clamping part close to the insertion gap is a clamping side surface, and the clamping side surface is a straight surface;

the included angle between the clamping side face and the ground vertical line is smaller than the included angle between the transition side face of the sliding inclined part and the ground vertical line;

when the clamping part clamps the cutter, the clamping side face of the clamping part is in surface contact with the surface of the blade of the cutter.

Further, the thickness of the ramp portion decreases in a direction from the end connected to the guide portion to the end connected to the clamping portion, and the width of the ramp portion decreases in a direction from the end connected to the guide portion to the end connected to the clamping portion.

Further, the thickness of the clamping portion decreases in a direction from one end connected with the ramp portion to the tip thereof, and the width of the clamping portion decreases in a direction from one end connected with the ramp portion to the tip thereof.

A tool holder, comprising:

a barrel;

the knife placing part is arranged on the barrel.

Further, the cartridge includes a sidewall and a cartridge opening defined by a top of the sidewall;

the edge of the outer side wall of the frame body of the knife placing part extends outwards to form a convex edge;

the bottom of the convex edge is abutted to the opening of the cylinder body, and the cutter placing part is arranged at the opening of the cylinder body.

Further, the convex edges are positioned at the top of the edge of the outer side wall of the frame body and distributed around the circumference of the frame body.

According to the technical scheme, the cutter placing part provided by the application forms an insertion gap for inserting the cutter between the adjacent cutter inserting beams, the clamping rows which are oppositely arranged at the bottoms of the cutter inserting beams and used for clamping the cutter are provided with the elastic pieces which are arranged at a plurality of intervals, and the elastic pieces of the adjacent clamping rows are mutually staggered. The elastic pieces of each clamping row are arranged at intervals, and the elastic pieces of the adjacent clamping rows are distributed in a staggered manner, so that enough space is reserved between the elastic pieces, and even if a tool nose enters the space between the elastic pieces when the tool falls, enough space is reserved for the tool nose structure, and the tool nose of the tool is prevented from being stuck to damage the tool nose or the cutting edge. Although the elastic pieces of the same clamping row are arranged at intervals, the elastic pieces of different clamping rows are arranged closely, so that the cutter can be clamped in the falling process, but the blade and the cutter point are easily damaged due to the contact of the elastic pieces which are too clamped. Compared with the existing tool apron, the elastic pieces of the scheme have enough space, so that the damage to the tool caused by the fact that the internal structure of the tool apron is dense in the falling process of the tool is avoided.

The application still provides a blade holder, including the barrel and put sword portion, have and put the same beneficial effect of sword portion.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic overall structure diagram of a knife placing part provided in the present application;

fig. 2 is a first partial structural schematic view of a blade placing part provided in the present application;

FIG. 3 is a schematic structural view of a knife rest beam with clamping rows of a knife rest provided in the present application;

FIG. 4 is a second partial structural view of a blade-placing portion provided in the present application;

FIG. 5 is a third partial structural view of a blade-placing portion provided in the present application;

FIG. 6 is a first cross-sectional view of a blade-positioning portion provided herein;

FIG. 7 is a cross-sectional view of a blade receiving portion of a tool insert beam with clamping rows as provided herein;

FIG. 8 is a cross-sectional view of a knife rest of the present application in combination with two knife rest beams with clamping rows;

FIG. 9 is a schematic view of a first structure of a knife holder with a knife inserted therein according to the present application;

FIG. 10 is a second structural view of a knife holder with a knife inserted therein according to the present application;

FIG. 11 is a schematic view of a third structure of a knife holder with a knife inserted therein according to the present application;

FIG. 12 is a schematic view of an overall construction of a tool holder provided herein;

FIG. 13 is an exploded view of a tool holder provided herein;

FIG. 14 is a partial cross-sectional view of a tool holder provided herein;

in the figure: a. a knife placing part; b. a barrel; 1. a frame body; 11. a convex edge; 100. inserting the gap; 200. a clamping gap; 300. a cutter; 301. a blade; 302. a knife handle; 2. a cutter insertion beam; 21. a ridge portion; 22. a guide portion; 221. a guide slope; 3. an elastic sheet; 31. a ramp portion; 32. a clamping portion.

Detailed Description

The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.

In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.

The embodiment of the application discloses a knife placing part and a knife holder.

Referring to fig. 1 to 4, an embodiment of a knife holder and a knife seat provided in an embodiment of the present application includes:

a frame body 1; the cutter inserting device comprises at least two cutter inserting beams 2, wherein the cutter inserting beams 2 are arranged in a frame body 1 at intervals and connected with the inner wall of the frame body 1, and an inserting gap 100 for inserting a cutter 300 is formed between every two adjacent cutter inserting beams 2; the clamping rows are arranged at the bottoms of the slotting tool beams 2, the clamping rows between the adjacent slotting tool beams 2 are also adjacent, and the clamping rows are provided with a plurality of elastic sheets 3 arranged at intervals along the length direction of the slotting tool beams 2; the elastic sheets 3 of adjacent clamping rows are distributed in a staggered way.

Specifically, an insertion gap 100 is formed between adjacent tool beams 2, and clamping rows for clamping a tool 300 are oppositely arranged at the bottom of the tool beams 2, each clamping row is provided with a plurality of elastic pieces 3 arranged at intervals, and the elastic pieces 3 on the adjacent clamping rows are distributed in a staggered manner. The elastic pieces 3 of each clamping row are arranged at intervals, and the elastic pieces 3 of adjacent clamping rows are distributed in a staggered manner, so that enough space is reserved between the elastic pieces 3, and when the cutter 300 falls, the cutter point of the cutter 300 can be prevented from being stuck to damage the cutter point or the cutter edge. Although the elastic pieces of the same clamping row are arranged at intervals, the elastic pieces of different clamping rows are arranged closely, so that the cutter can be clamped in the falling process, but the cutting edge and the cutter tip are easy to contact with the elastic pieces to cause damage. In the scheme, the elastic pieces 3 of the adjacent clamping rows are distributed in a staggered manner, so that enough space is reserved between the elastic pieces 3, and the damage to the cutter 300 caused by the dense internal structure of the cutter holder in the falling process of the cutter is avoided. Furthermore, the clamping bar and the slotting tool beam 2 in the embodiment can be integrally connected/formed, that is, the elastic piece 3 and the slotting tool beam 2 can be integrally formed, so that the processing and the assembly are more convenient, and the limitation is not particularly made. The centre gripping row can only be become by a plurality of flexure strips 3, also perhaps a connecting beam bottom is fixed a plurality of flexure strips 3, and 3 rethread connecting beams of flexure strip are fixed in the bottom position of slotting tool roof beam 2, and wherein flexure strip 3 can be same material with slotting tool roof beam 2, through integrated into one piece, can simplify production technology, reduction in production cost improves life.

The above is a first embodiment of a knife placing portion provided in the present application, and the following is a second embodiment of a knife placing portion provided in the present application, specifically referring to fig. 1 to 11.

A blade placement section comprising: a frame body 1; the cutter inserting device comprises at least two cutter inserting beams 2, wherein the cutter inserting beams 2 are arranged in a frame body 1 at intervals and connected with the inner wall of the frame body 1, and an inserting gap 100 for inserting a cutter 300 is formed between every two adjacent cutter inserting beams 2; the clamping rows are arranged at the bottoms of the slotting tool beams 2, the clamping rows between the adjacent slotting tool beams 2 are also adjacent, and the clamping rows are provided with a plurality of elastic sheets 3 arranged at intervals along the length direction of the slotting tool beams 2; the elastic sheets 3 of adjacent clamping rows are distributed in a staggered way.

In the present application, in order to make the space in the housing 1 fully available, the bayonet beams 2 may be provided on both inner end walls of the housing 1 as shown in fig. 5, so that the space in the housing 1 close to the side end walls can also be used. The slotting tool beam 2 is arranged on the side end wall, so that the slotting tool beam 2 is in a half-and-half structure, and is not limited in particular.

Further, as shown in fig. 3, 7 and 8, the insert beam 2 may include a guide portion 22; the guide part 22 is provided with a guide inclined surface 221, and an insertion gap 100 formed between the guide parts 22 of adjacent cutter beams 2 is reduced from top to bottom; the slope area of the tip of the guide slope 221 extends inward of the insertion gap 100 to form a curved surface.

In particular, the slotting cutter beam 2 in the present application may also include a ridge portion; the ridge part 21 is connected with the guide part 22 and arranged on the top of the guide part 22; the ridge portion 21 may be equal in length to the guide portion 22, and the end portions are connected to the two inner end walls of the frame, respectively. For convenience of integral processing, the ridge portion 21 and the guide portion 22 have equal length, end faces are flush and connected to the inner wall of the frame 1 respectively, and the connection mode may be a mode such as a fastening piece or glue, and is not limited specifically. The ridge 21 may be square as shown in fig. 3, 7, 8, etc., and the upper surface may be flush with the upper surface of the frame 1 when the ridge is mounted, and the connecting portion between the upper surface and the two sides is rounded to avoid the sharp corner from accidentally scraping the tool 300. The guide portion 22 may be an isosceles trapezoid as shown in the figure, that is, both sides may form the guide slope 221, so as to provide a guiding function for the inserted tool 300, and the tool 300 can be inserted slidably along the guide slope 221. The insertion gap 100 formed between the guide slopes 221 of the adjacent guide portions 22 may be narrowed as a whole from the top to the bottom, satisfying the guide function. In addition, the curved surface arranged on the guide inclined surface 221 has the effect that the tool tip of the tool 300 slides down after being contacted with the guide inclined surface 221, and the slightly arched curved surface part on the guide inclined surface 221 contacts with the side surface of the tool 300 in the sliding down process, so that the tool tip leaves the surface of the guide inclined surface 221, the friction between the tool tip and the surface of the guide inclined surface 221 in the whole sliding down process is avoided, the structure of the tool tip is damaged, and the curved surface can be arranged at the position close to the ridge beam part 21, and the tool tip is favorably kept away from the.

Further, as shown in fig. 3, 4, 6 and 8, the width of the space between adjacent elastic sheets 3 of the nip row is not greater than the width of the elastic sheets 3. Wherein the width of the space is preferably equal to the width of the elastic sheet 3, and is not particularly limited. The elastic pieces 3 on different sides of the same blade beam 2 are also staggered, and the elastic pieces 3 on the opposite side of the adjacent blade beam 2 are staggered to form a similar tooth/'concave-convex' matching shape between the elastic pieces 3 of two clamping rows at the bottom of an insertion gap 100, so that the elastic pieces 3 at all positions in the length direction in the same insertion gap 100 can provide clamping force.

Further, as shown in fig. 3, 6, 7, 8, the elastic piece 3 may include a ramp portion 31; one end of the inclined sliding part 31 is connected with the tail end of the guide part 22 of the slotting tool beam 2, and the elastic sheet 3 is connected with the slotting tool beam 2 through the inclined sliding part 31; the side of the ramp 31 close to the insertion gap 100 is a transition side, which extends in the direction of the ramp angle of the guide ramp 221 of the guide 22.

Specifically, the transition side of the ramp 31 may be connected with the guide slope 221 on the guide 22 to form a continuous surface, which can provide a better guiding function for the tool 300, so that the tool 300 can easily slide along the guide slope 221 and the ramp 31 smoothly.

Further, the elastic sheet 3 further includes a clamping portion 32; one end of the clamping part 32 is connected with the tail end of the inclined part 31 of the elastic sheet 3; the side of the clamping portion 32 close to the insertion gap 100 is a clamping side, and the clamping side is a flat side; the included angle between the clamping side surface and the ground vertical line is smaller than the included angle between the transition side surface of the inclined sliding part 31 and the ground vertical line; when the clamping portion 32 clamps the tool 300, the clamping side surface of the clamping portion 32 comes into surface contact with the surface of the insert 301 of the tool 300.

Specifically, this design is more likely to form a vertical state when the clamping portion 32 is deformed by a pressing force, and the entire flat surface thereof can be in surface contact with the insert surface of the tool 300, increasing the contact area with the tool 300 and the frictional force, thereby further improving the clamping effect.

Further, as shown in fig. 3, 6, 7, and 8, the thickness of the ramp portion 31 decreases in a direction from the end connected to the guide portion 22 to the end connected to the clamping portion 32, and the width of the ramp portion 31 decreases in a direction from the end connected to the guide portion 22 to the end connected to the clamping portion 32. Like this when the portion of cunning to one side 31 receives the extrusion force to produce the deformation, the connection structure that the portion of cunning to one side 31 and direction inclined plane 221 link to each other is thicker wider can provide better material elasticity, makes the connection cross-section of portion of cunning to one side 31 and direction inclined plane 221 bigger moreover, promotes the bending strength of connecting portion, has better resistant loss effect.

Further, as shown in fig. 3, 6, 7, and 8, the thickness of the clamping portion 32 decreases in the direction from the end connected to the ramp portion 31 to the distal end thereof, and the width of the clamping portion 32 decreases in the direction from the end connected to the ramp portion 31 to the distal end thereof. When clamping part 32 receives the extrusion force to produce deformation, the thicker wider connection structure of clamping part 32 and the portion that slides and incline 31 linking to each other can provide better material elasticity, makes clamping part 32 and the connection cross-section of portion that slides and incline 31 bigger moreover, promotes the bending strength of connecting portion, has better resistant loss effect.

Further, as shown in fig. 8, the nip gap 200 formed between the nip portions 32 of adjacent nip rows may have a width of 0.6mm to 1.2 mm. The width of the clamping gap 200 is preferably 0.8mm, but may also be smaller than 0.6mm, or larger than 1.2mm, and may be adjusted appropriately according to actual needs.

In addition, the widths of the adjacent insertion gaps 100 in the present application may be the same or different, and similarly, the clamping gaps 200 formed between the clamping portions 32 of the elastic pieces 3 in adjacent rows may also be the same or different, and are not limited specifically.

Referring to fig. 9 to 11, when the knife placing portion a is in a non-clamping state, that is, when the knife 300 is not placed, each component of the knife placing portion a is in an unstressed state, at this time, the adjacent knife inserting beams 2 are parallel to each other, and the elastic piece 3 is in an open state. The clamping gaps 200 formed by the clamping parts 32 of the elastic pieces 3 oppositely arranged between the adjacent cutter beams 2 in the same insertion gap 100 are the same in width.

When the cutting tool 300 is placed in the tool placing part a, if the cutting tool tip touches the ridge beam part 21 or the guide inclined surface 221 in the insertion process, the arc surface formed by the extension of the fillet of the ridge beam part 21 and the guide inclined surface 221 towards the insertion gap 100 guides the cutting tool tip to slide down, so that the contact between the cutting tool tip and other parts of the tool placing part is reduced, and the damage of the cutting tool tip is avoided. As the insertion length of the tool 300 increases, the tool tip moves towards the bottom of the insertion gap 100, and since the elastic pieces 3 of the clamping rows on both sides of the same insertion gap 100 are staggered and the staggered interval width is smaller than the width of a single elastic piece 3, the tool tip inevitably contacts with a certain elastic piece 3 and continuously slides downwards along the inclined part 31 of the elastic piece 3 until the surface of the blade 301 of the tool 300 contacts with the elastic pieces 3 on both sides of the same insertion gap 100, and at this time, the two side walls of the blade 301 press the elastic pieces 3. The elastic sheet 3 is deformed by the blade 301 side wall squeezing the backward inclined portion 31 to be bent backward in the axial direction by the connecting portion with the guide inclined surface 221, and drives the lower clamping portion 32 to move backward, and simultaneously the clamping portion 32 is deformed by being bent backward in the axial direction by the connecting portion with the inclined portion 31. In the process that the inclined part 31 and the clamping part 32 are bent backwards to generate deformation, the included angle between the surface of the clamping part 32 and the vertical direction is gradually reduced, the contact area between the clamping side surface of the clamping part 32 and the surface of the blade 301 is gradually increased, and the friction force generated by the clamping part 32 for inserting the blade 301 is gradually increased, so that the sliding speed of the cutter 300 is reduced. After the cutting tool 300 is completely inserted, the deformation generated by the backward bending of the inclined part 31 and the clamping part 32 reaches the maximum value, at this time, the clamping side surface of the clamping part 32 coincides with the vertical direction and is abutted against the surface of the insert 301, and at this time, the contact area between the clamping side surface of the clamping part 32 and the surface of the insert 301 is the maximum. The inclined part 31 and the clamping part 32 generate a material elastic force opposite to the deformation direction, the material elastic force has a movement tendency of restoring the elastic piece 3 to an original shape so as to generate pressure to the side wall of the blade 301, and at the moment, the clamping part 32 of the elastic piece 3 generates the maximum pressure to the surface of the blade 301, so as to generate a fastening effect of clamping the cutter 300. The adjacent ridge portions 21 can also be used for supporting the shank 302 of the tool 300, thereby further improving the stability of fixing the tool 300.

As shown in fig. 12-14, the present application further provides a tool holder, comprising: a cylinder b; a knife placing part, wherein the knife placing part a is arranged on the cylinder b.

Further, the cartridge b comprises a side wall and a cartridge opening defined by a top of the side wall; the edge of the outer side wall of the frame body 1 of the knife placing part a extends outwards to form a convex edge 11; the bottom of the convex edge 11 is abutted against the opening of the cylinder body, and the knife placing part a is arranged at the opening of the cylinder body. The matching structure design has simple installation and disassembly and convenient use.

Further, the convex edge 11 is located on the top of the edge of the outer side wall of the frame body 1 and distributed around the circumference of the frame body 1. Increase the matching contact surface and improve the matching firmness. Of course, the inner side wall of the cylinder b may be provided with a supporting edge distributed around the cylinder b, and the supporting edge is contacted and abutted against the bottom frame edge of the knife placing part a for supporting and fixing the knife placing part a.

While the present disclosure has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present disclosure.

Claims (10)

1. A knife placing part is characterized by comprising:

a frame body;

the cutter inserting beams are arranged in the frame body at intervals and are connected with the inner wall of the frame body, and an inserting gap for inserting a cutter is formed between every two adjacent cutter inserting beams;

the clamping rows are arranged at the bottoms of the cutter inserting beams, the clamping rows between the adjacent cutter inserting beams are also adjacent, and the clamping rows are provided with a plurality of elastic sheets arranged at intervals along the length direction of the cutter inserting beams;

the elastic sheets of the adjacent clamping rows are distributed in a staggered manner.

2. The blade rest of claim 1, wherein the insert beam comprises a guide;

the guide parts are provided with guide inclined planes, and the insertion gap formed between the guide parts of the adjacent cutter insertion beams is reduced from top to bottom;

the inclined plane area at the top end of the guide inclined plane extends towards the inside of the insertion gap to form an arc surface.

3. The blade disposing section according to claim 1, wherein a width of a space between adjacent ones of said elastic pieces of said clamping row is not greater than a width of said elastic pieces.

4. The blade disposing section of claim 2 wherein said resilient tab includes a ramp portion;

one end of the sliding inclined part is connected with the tail end of the guide part of the slotting tool beam, and the elastic piece is connected with the slotting tool beam through the sliding inclined part;

the side face of the inclined sliding part close to the insertion gap is a transition side face, and the transition side face extends along the inclined plane angle direction of the guide inclined plane of the guide part.

5. The blade-placing portion of claim 4, wherein the elastic piece further comprises a clamping portion;

one end of the clamping part is connected with the tail end of the inclined part of the elastic sheet;

the side surface of the clamping part close to the insertion gap is a clamping side surface, and the clamping side surface is a straight surface;

the included angle between the clamping side face and the ground vertical line is smaller than the included angle between the transition side face of the sliding inclined part and the ground vertical line;

when the clamping part clamps the cutter, the clamping side face of the clamping part is in surface contact with the surface of the blade of the cutter.

6. The knife holder according to claim 5, wherein the thickness of the ramp decreases from the end connected to the guide portion to the end connected to the holding portion, and the width of the ramp decreases from the end connected to the guide portion to the end connected to the holding portion.

7. The knife holder of claim 5, wherein the thickness of the clamping portion decreases from the end connected to the ramp portion to the distal end thereof, and the width of the clamping portion decreases from the end connected to the ramp portion to the distal end thereof.

8. A tool holder, comprising:

a barrel;

the blade placement portion of any of claims 1 to 7, mounted to the barrel.

9. The tool holder of claim 8 wherein the cartridge includes a sidewall and a cartridge opening defined by a top of the sidewall;

the edge of the outer side wall of the frame body of the knife placing part extends outwards to form a convex edge;

the bottom of the convex edge is abutted to the opening of the cylinder body, and the cutter placing part is arranged at the opening of the cylinder body.

10. The tool holder of claim 9, wherein the ledge is located at a top portion of an outer sidewall edge of the frame and is circumferentially distributed around the frame.

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