CN206382608U - A kind of TCT sawing sheet straight knives with three cutting edges - Google Patents

Abstract

The utility model relates to a TCT cutting straight knife with three cutting edges, and aims to provide a TCT cutting straight knife with three cutting edges, which has good wear resistance, long service life, easy cutting and high cutting surface finish. Knife, the utility model includes a handle, a transition part, and a cutting edge in turn, wherein: the cutting edge includes a first cutting edge, a second cutting edge, and a third cutting edge, and the end of the cutting edge is provided with a first end cutting edge, a second end cutting edge, a third end cutting edge and a chisel edge, the first cutting edge is provided with a first chip breaker, the second cutting edge is provided with a second chip breaker, and the third The cutting edge is provided with a third chip breaker, and the first chip breaker, the second chip breaker and the third chip breaker are not on the same axis.

Description

A TCT cutting straight knife with three cutting edges

technical field

The utility model relates to cutting and grooving non-metallic materials such as solid wood, multi-layer boards, large core boards, particle boards, and medium-fiber boards, in particular to a straight TCT cutting knife with three cutting edges.

Background technique

With the rapid development of the woodworking machinery industry in recent years, the computer engraving machines and machining centers used in the furniture industry have become more and more intelligent, and most of them have developed into a multi-functional situation. The speed is improved to another level compared with single-function computer engraving, and the stability is also better. The new machining center can automatically complete a series of actions such as feeding, positioning, and comparison. The operator only needs to sort and arrange the cut parts. Therefore, the requirements for the tools used in processing are getting higher and higher. Traditionally, this kind of knives are mainly welded blade straight knives, that is, the knives are made of steel, and only the cutting edge is made of cemented carbide. When applied to this kind of equipment, the knives often break, easy to wear, and the tool life is not long. The disadvantage is that it is often necessary to replace the tool, which greatly wastes the actual cutting time. With the increase in labor costs, depreciation costs of various machines, and maintenance costs, large-scale integrated machining centers will also be the development trend of the woodworking machinery and furniture manufacturing industries in the future. And this kind of welded blade knives will gradually withdraw from the market stage as they enter the era of "intelligence".

Utility model content

The purpose of this utility model is to provide a TCT cutting straight knife with three cutting edges, which has good wear resistance, long service life, easy cutting and high cutting surface finish.

In order to achieve the purpose of the utility model, the utility model adopts the following technical scheme: a TCT cutting straight knife with three cutting edges, which sequentially includes a handle, a transition part, and a cutting edge, wherein: the cutting edge includes a first Cutting edge, second cutting edge, third cutting edge, the end of the cutting edge is provided with a first end edge, a second end edge, a third end edge and a chisel edge, the chisel edge forming a drill point The form makes it have the function of drilling vertically downward with the cutter belt, which can meet the functions of material cutting, repairing, bottom cleaning, engraving, grooving and drilling.

Preferably, the first cutting edge is provided with a first chip breaker, the second cutting edge is provided with a second chip breaker, the third cutting edge is provided with a third chip breaker, and the first chip breaker The groove, the second chip breaker, and the third chip breaker are not on the same axis, and are staggered from each other, so that the tool can break chips quickly during use, the cutting speed is faster, the cutting is easier, and the processed surface is smoother.

Preferably, the cutting edge at the first end, the cutting edge at the second end, and the cutting edge at the third end are all provided with a relief angle, and the relief angle is 12°-18°, so that the machining accuracy is higher.

Preferably, the first end blade, the second end blade, and the third end blade are all provided with end edge angles, and the end edge angles are 3°-5°, so that the machining accuracy is higher.

Preferably, the first end blade, the second end blade, and the third end blade are all provided with an end edge relief angle, and the end edge relief angle is 10°-15°, so that the machining accuracy is higher.

Preferably, the knife handle is made of steel body material, and the cutting edge is ground with ultra-fine particle solid carbide round rod, which has better wear resistance, longer service life, and the tip of the knife is not easy to crack.

Preferably, the transition part is provided with a hole to cooperate with the cutting edge, and the cutting edge is welded to the transition part through the hole, so that the connection is more firm.

Preferably, the transition portion is a circular arc transition portion.

Beneficial effects of the utility model: the cutting edge of the product includes a first cutting edge, a second cutting edge, and a third cutting edge; The end cutting edge and the chisel edge, the first cutting edge is provided with a first chip breaker, the second cutting edge is provided with a second chip breaker, the third cutting edge is provided with a third chip breaker, and the first cutting edge is provided with a third chip breaker. The first chip breaker, the second chip breaker, and the third chip breaker are not on the same axis, and they are staggered from each other, so the cutting effect is smoother, it is not easy to cause sticking of burning knives, and the cutting surface is smooth; When cutting and grooving non-metallic materials such as solid wood, multi-layer board, large core board, particle board, MDF, etc., it can effectively prevent the phenomenon of edge bursting and improve the cutting efficiency; the cutting edge is made of ultra-fine grain solid carbide round rod The knife handle is made of steel body material, which improves the rigidity of the cutting part. It is not easy to break the knife during use, has good wear resistance, and has a long service life; it can achieve accurate, light, efficient, and efficient arc cutting with engraving machines. For the purpose of material saving, compared with the traditional welding straight knife, the speed is increased by 3-5 times, the service life is increased by 3-5 times, and the machining efficiency of the workpiece is improved while reducing the tool changing time.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a structural schematic diagram of the first chip breaker, the second chip breaker and the third chip breaker of the present invention;

Fig. 3 is a partial structural diagram of the utility model.

1 is the handle, 2 is the transition part, 3 is the cutting edge, 4 is the end edge relief angle, 5 is the end edge angle, 6 is the relief angle, 7 is the first cutting edge, 71 is the first chip breaker, 8 is The second cutting edge, 81 is the second chip breaker, 9 is the third cutting edge, 91 is the third chip breaker, 10 is the first end edge, 11 is the second end edge, 12 is the third end Blade, 13 is a hole, and 14 is a chisel edge.

detailed description

Further explain below in conjunction with accompanying drawing:

As shown in the accompanying drawings 1-3: the utility model includes a handle, a transition part, and a cutting edge in sequence, wherein: the cutting edge includes a first cutting edge, a second cutting edge, and a third cutting edge, and the cutting edge The end is provided with a first end blade, a second end blade, a third end blade and a chisel edge, the first cutting edge is provided with a first chip breaker, and the second cutting edge is provided with a second breaker The chip groove and the third cutting edge are provided with a third chip breaker, the first chip breaker, the second chip breaker, and the third chip breaker are not on the same axis, and the first end cutting edge , the second end blade, the third end blade are all provided with relief angle, the angle of the relief angle is 12°-18°, the first end blade, the second end blade, the third end blade are all An end edge angle is provided, and the angle of the end edge angle is 3°-5°. The first end blade, the second end blade, and the third end blade are all provided with an end edge relief angle, and the end edge The relief angle is 10°-15°, the handle is made of steel body, the cutting edge is made of ultra-fine particle solid carbide round rod, and the transition part is equipped with cutting The cutting edge is welded together with the transition part through the hole, and the transition part is a circular arc transition part.

Embodiment 1: A TCT cutting straight knife with three cutting edges sequentially includes a handle, a circular arc transition part, and a cutting edge, wherein: the cutting edge includes a first cutting edge, a second cutting edge, a third Chip cutting edge, the end of the cutting edge is provided with a first end cutting edge, a second end cutting edge, a third end cutting edge and a chisel edge, the first cutting edge is provided with a first chip breaker, the second The second cutting edge is provided with a second chip breaker, the third cutting edge is provided with a third chip breaker, and the first chip breaker, the second chip breaker, and the third chip breaker are not on the same axis , the blade at the first end, the blade at the second end, and the blade at the third end are all provided with a relief angle, and the angle of the relief angle is 12°. The blade at the first end, the blade at the second end, the The three end blades are all provided with end edge angles, and the angle of the end edge angles is 3°, and the first end blade, the second end blade, and the third end blade are all provided with end edge relief angles, and the The back angle of the end blade is 10°, the handle is made of steel material, the cutting edge is made of ultra-fine particle solid carbide round rod, and the transition part is equipped with a cutting edge A mating hole through which the cutting edge is welded to the transition section.

Embodiment 2: A TCT cutting straight knife with three cutting edges sequentially includes a handle, a transition part, and a cutting edge, wherein: the cutting edge includes a first cutting edge, a second cutting edge, and a third cutting edge , the end of the cutting edge is provided with a first end cutting edge, a second end cutting edge, a third end cutting edge and a chisel edge, and the first cutting edge is provided with a first chip breaker, the second cutting edge The cutting edge is provided with a second chip breaker, the third cutting edge is provided with a third chip breaker, and the first chip breaker, the second chip breaker, and the third chip breaker are not on the same axis, so The blade at the first end, the blade at the second end, and the blade at the third end are all provided with a relief angle, and the angle of the relief angle is 16°. The blade at the first end, the blade at the second end, and the blade at the third end The end blades are all provided with an end edge angle, and the angle of the end edge angle is 4°. The first end blade, the second end blade, and the third end blade are all provided with an end edge relief angle, and the end edge The relief angle is 12°, the handle is made of steel material, the cutting edge is made of ultra-fine particle solid carbide round rod, and the transition part is equipped with a A hole through which the cutting edge is welded to the transition portion.

Embodiment 3: A TCT cutting straight knife with three cutting edges sequentially includes a handle, a circular arc transition part, and a cutting edge, wherein: the cutting edge includes a first cutting edge, a second cutting edge, a third Chip cutting edge, the end of the cutting edge is provided with a first end cutting edge, a second end cutting edge, a third end cutting edge and a chisel edge, the first cutting edge is provided with a first chip breaker, the second The second cutting edge is provided with a second chip breaker, the third cutting edge is provided with a third chip breaker, and the first chip breaker, the second chip breaker, and the third chip breaker are not on the same axis , the blade at the first end, the blade at the second end, and the blade at the third end are all provided with a relief angle, and the angle of the relief angle is 18°. The blade at the first end, the blade at the second end, the The three end blades are all provided with end edge angles, and the angle of the end edge angles is 5°, and the first end blade, the second end blade, and the third end blade are all provided with end edge relief angles, and the The back angle of the end blade is 15°, the handle is made of steel material, the cutting edge is made of ultra-fine particle integral hard alloy round rod, and the transition part is equipped with a cutting edge A mating hole through which the cutting edge is welded to the transition section.

The purpose, features and advantages of the utility model will be further described with reference to the accompanying drawings in conjunction with the embodiments. The examples will help to understand the utility model, but do not limit the content of the utility model. All deformations that a person skilled in the art can derive or associate directly from the content disclosed in the utility model shall be considered as the protection scope of the utility model.

Claims (8)

1. a kind of TCT sawing sheet straight knives with three cutting edges, successively including handle of a knife, transition portion, cutting edge, its feature exists In：The cutting edge includes the first cutting blade, the second chip blade, the 3rd chip blade, and the end of the cutting edge is provided with First end blade, the second end blade, the 3rd opposite end edges and chisel edge.

2. the TCT sawing sheet straight knives with three cutting edges according to claim 1, it is characterised in that：First cutting Blade breaks provided with the first chip-breaker, second cutting blade provided with the second chip-breaker, the 3rd cutting blade provided with the 3rd Consider groove to be worth doing, first chip-breaker, the second chip-breaker, the 3rd chip-breaker be not on same axis.

3. the TCT sawing sheet straight knives with three cutting edges according to claim 2, it is characterised in that：The first end Blade, the second end blade, the 3rd opposite end edges are equipped with relief angle, and the relief angles are 12 ° -18 °.

4. the TCT sawing sheet straight knives with three cutting edges according to claim 3, it is characterised in that：The first end Blade, the second end blade, the 3rd opposite end edges are equipped with the end basil, and the end basil angle is 3 ° -5 °.

5. the TCT sawing sheet straight knives with three cutting edges according to claim 4, it is characterised in that：The first end Blade, the second end blade, the 3rd opposite end edges are equipped with end clearance angle, and the end clearance angle angle is 10 ° -15 °.

6. the TCT sawing sheet straight knives with three cutting edges according to claim 5, it is characterised in that：The handle of a knife is used Steel body material is made, and the cutting edge is ground using ultra-fine grain whole hard alloy pole and formed.

7. the TCT sawing sheet straight knives with three cutting edges according to claim 6, it is characterised in that：The transition portion Interior to be provided with the hole coordinated with cutting edge, the cutting edge is welded together by hole with transition portion.

8. the TCT sawing sheet straight knives with three cutting edges according to claim 7, it is characterised in that：The transition portion For arc transition part.