CN216860057U

CN216860057U - Woodworking tool with bottom cleaning knife and convenient chip removal function

Info

Publication number: CN216860057U
Application number: CN202123214659.1U
Authority: CN
Inventors: 沈小红
Original assignee: Chengdu Hengcheng Tools Manufacturing Co ltd
Current assignee: Chengdu Hengcheng Tools Manufacturing Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-07-01
Anticipated expiration: 2031-12-21

Abstract

The utility model discloses a woodworking tool with a bottom clearing cutter and convenient chip removal, and relates to the technical field of woodworking tools, and the woodworking tool comprises a tool shank, a tool bar, a blade and a bottom clearing cutter; the cutter handle is connected with the cutter bar, a plurality of blades are arranged, each blade is arranged on the cutter bar along the length direction of the cutter bar, and the top end of each blade protrudes out of the top end surface of the cutter bar; the bottom clearing cutter is arranged on the top end face of the cutter rod and protrudes out of the top end face of the cutter rod, the top end faces of the cutter rod around the bottom clearing cutter are all inclined planes, and an included angle between each inclined plane and the protruding portion of the bottom clearing cutter is an obtuse angle. According to the woodworking tool provided by the utility model, as the top end surface of the tool bar is an inclined surface, the distance from the inclined surface to the bottom end of the drilled wood hole is gradually increased from inside to outside, wood chips generated by back drilling are extruded outwards under the rotating cutting action of the bottom cleaning tool, so that the wood chips are smoothly discharged from the narrower inner end of the chip removal cavity to the wider outer end and are not clamped in the chip removal cavity, and the bottom cleaning tool normally rotates to perform drilling operation.

Description

Woodworking tool with bottom cleaning knife and convenient chip removal function

Technical Field

The utility model relates to the technical field of woodworking tools, in particular to a woodworking tool with a bottom cleaning knife and convenient chip removal.

Background

Woodworking tools are tools that machine wood into a desired shape and size by cutting methods. Woodworking tools are used both manually and mechanically, and machine tools are used in both batch and mass production. Woodworking tools for machines are classified into 5 types of saws, blades, milling cutters, drills, and mortise machining tools.

In the prior art, a Chinese utility model patent document with publication number CN206357371U discloses a blanking and forming integrated woodworking tool, which relates to the field of tools and comprises a tool handle and a tool bit, wherein the tool bit comprises a reinforced bottom cleaning tool, a blade, a reinforcing rib and a tool platform; the sword platform is cylindrical, sets up between handle of a knife and strengthening rib, strengthens the top of clear bed knife setting at the strengthening rib, and the blade setting is on the strengthening rib, and the edge of strengthening rib is the same with the marginal shape of blade, and blade one end protrusion in the top of strengthening rib, and the other end of blade extends to the sword platform on, and ligneous unloading and corner processing, saving manufacturing procedure can be accomplished simultaneously to this kind of unloading shaping integral type wood cutter.

In the patent, the strengthening bottom cleaning cutter is arranged for drilling the wood, so that the designated position of the wood is convenient to process without being limited to cutting from the edge. The top end face of the reinforcing rib is a plane which is perpendicular to the reinforced bottom clearing cutter, the reinforced bottom clearing cutter extends towards the front end of the plane, the plane and the bottom end of the drilled wood hole form a chip removal cavity, and wood chips generated by drilling of the reinforced bottom clearing cutter are discharged outwards from the chip removal cavity.

However, because the top end surface of the reinforcing rib is a plane, the distance between the plane and the bottom end of the drilled wood hole is constant, and the wood chips are extremely easy to be blocked in the chip removal cavity and are not discharged. The saw-dust card can cause certain resistance to the advancing of strengthening clear bed knife after in the chip removal cavity, and then makes and strengthen clear bed knife and advance obstructed, and drilling effect reduces.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model aims to provide the woodworking tool with the bottom cleaning knife and convenient chip removal, so as to solve the problem that the wood chips generated by drilling of the reinforced bottom cleaning knife are easy to clamp chips, and further the drilling effect is reduced.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

a woodworking tool with a bottom cleaning knife and convenient for chip removal comprises a tool shank, a tool bar, a blade and a bottom cleaning knife;

the cutter handle is connected with the cutter bar, a plurality of blades are arranged, each blade is installed on the cutter bar along the length direction of the cutter bar, and the top end of each blade protrudes out of the top end face of the cutter bar; the bottom cleaning cutter is arranged on the top end face of the cutter rod and protrudes out of the top end face of the cutter rod, the top end faces of the cutter rod on the periphery of the bottom cleaning cutter are inclined planes, and an included angle between each inclined plane and the protruding portion of the bottom cleaning cutter is an obtuse angle.

Furthermore, one end of the inclined plane is connected to the outer side wall of the bottom cleaning cutter, and the other end of the inclined plane is connected to the outer side wall of the cutter bar.

Further, the included angle between the inclined plane and the protruding part of the bottom cleaning knife is 100-110 degrees.

Further, on the top end face of the cutter bar, the bottom cleaning cutter is located in the middle of the top end face of the cutter bar and located among the plurality of blades.

Furthermore, the knife edges of the bottom clearing knife comprise a first knife edge and a second knife edge which are symmetrical and have opposite knife edge directions.

Further, a bottom cleaning knife mounting groove is formed in the top end face of the knife bar, and the bottom cleaning knife is welded to the bottom cleaning knife mounting groove.

Further, the cutter arbor is cylindric to seted up L type mouth along cutter arbor length direction, the blade welding is in L type mouth department and hug closely the both ends face of L type mouth, and the lateral wall of outside protrusion cutter arbor.

Further, the plurality of blades are mounted on the outer side wall of the cutter bar along the circumferential direction of the cutter bar.

Furthermore, the number of the L-shaped openings is two, and the number of the blades is two and the blades are respectively welded at the two L-shaped openings.

Further, the knife handle and the knife bar are integrally formed.

The utility model has the beneficial effects that:

the woodworking tool provided by the utility model is characterized in that the bottom clearing cutter is arranged on the top end surface of the cutter bar and protrudes out of the top end surface of the cutter bar, the top end surfaces of the cutter bar around the bottom clearing cutter are inclined surfaces, the included angle between the inclined surface and the protruding part of the bottom clearing cutter is an obtuse angle, when the bottom clearing cutter drills, the inclined surface and the bottom end of a drilled wood hole form a chip removal cavity, saw dust generated by drilling of the bottom clearing cutter is discharged outwards from the chip removal cavity, the distance between the inclined surface and the bottom end of the drilled wood hole gradually increases from inside to outside, namely the chip removal cavity is gradually widened from inside to outside, and under the rotary cutting action of the bottom clearing cutter, the saw dust generated by back drilling extrudes the saw dust generated by first drilling outwards, so that the saw dust is smoothly discharged from the narrower inner end of the chip removal cavity to the wider outer end without being clamped in the chip removal cavity, and the bottom clearing cutter normally rotates to perform drilling operation.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a schematic view of the top end of the tool holder of the present invention;

FIG. 4 is a schematic view of the top end of the tool holder of the present invention from another perspective;

reference numerals:

1. a knife handle; 2. a cutter bar; 3. a blade; 4. clearing a bottom cutter; 5. a bevel; 6. a first blade edge; 7. a second knife edge; 8. clearing a bottom cutter mounting groove; 9. an L-shaped opening.

Detailed Description

The conception, the specific structure and the technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features and the effects of the present invention.

Example 1

A woodworking tool with a bottom cleaning knife and convenient for chip removal is shown in figures 1-4 and comprises a tool shank 1, a tool bar 2, a blade 3 and a bottom cleaning knife 4.

The knife handle 1 is connected with the knife bar 2, a plurality of blades 3 are arranged, each blade 3 is arranged on the knife bar 2 along the length direction of the knife bar 2, and the top end of each blade 3 protrudes out of the top end surface of the knife bar 2; the bottom clearing cutter 4 is arranged on the top end face of the cutter bar 2 and protrudes out of the top end face of the cutter bar 2, the top end faces of the cutter bar 2 around the bottom clearing cutter 4 are inclined faces 5, and an included angle between the inclined faces 5 and the protruding portion of the bottom clearing cutter 4 is an obtuse angle.

In this embodiment, handle of a knife 1 is used for installing the cutter on the blade holder, and cutter arbor 2 is used for installing blade 3 and clear bottom sword 4, and blade 3 is used for the normal rotatory cutting of carpenter's cutter, and clear bottom sword 4 is used for drilling timber, conveniently processes timber assigned position and does not confine to and must begin to cut into from the edge. The top end of each blade 3 protrudes out of the top end surface of the cutter bar 2, so that sawdust in the hole can be driven to rotate, and the sawdust is discharged in a rotating manner.

The bottom cleaning knife 4 is arranged on the top end face of the knife rod 2 and protrudes out of the top end face of the knife rod 2, the top end faces of the knife rod 2 around the bottom cleaning knife 4 are all inclined planes 5, and an included angle between each inclined plane 5 and the protruding portion of the bottom cleaning knife 4 is an obtuse angle. When the bottom cleaning knife 4 drills, the inclined plane and the bottom end of the drilled wood hole form a chip removal cavity, the chips generated by the drilling of the bottom cleaning knife 4 are discharged from the chip removal cavity outwards, the distance from the inclined plane to the bottom end of the drilled wood hole gradually increases from inside to outside, namely the chip removal cavity is gradually widened from inside to outside, and the chips generated by the back drilling and the chips generated by the first drilling are extruded outwards under the action of the rotary cutting of the bottom cleaning knife 4, so that the chips are smoothly discharged from the narrower inner end of the chip removal cavity to the wider outer end and are not clamped in the chip removal cavity.

Example 2

In this embodiment, a further improvement is made on the basis of embodiment 1, as shown in fig. 3 and 4, one end of the inclined surface 5 is connected to the outer side wall of the bottom cleaning knife 4, and the other end is connected to the outer side wall of the knife holder 2, so as to form a chip removal cavity with a narrow inside and a wide outside. The included angle between the inclined plane 5 and the convex part of the bottom cleaning knife 4 is 100-110 degrees.

On the top end face of the cutter rod 2, the bottom cleaning cutter 4 is located in the middle of the top end face of the cutter rod 2 and located among the plurality of blades 3, and a cutter edge of the bottom cleaning cutter 4 comprises a first cutter edge 6 and a second cutter edge 7 which are symmetrical and opposite in cutter edge direction, so that the bottom cleaning cutter 4 can conveniently perform drilling operation. The top end face of the cutter rod 2 is provided with a bottom cleaning cutter mounting groove 8, and the bottom cleaning cutter 4 is welded on the bottom cleaning cutter mounting groove 8.

The cutter arbor 2 is cylindric to seted up L type mouth 9 along cutter arbor 2 length direction, the blade 3 welds in L type mouth 9 department and hugs closely L type mouth 9 both ends face, and outside protrusion cutter arbor 2's lateral wall. A plurality of blades 3 are installed on the outer side wall of the cutter bar 2 along the circumferential direction of the cutter bar 2. In this embodiment, there are two L-shaped openings 9, and the two blades 3 are welded to the two L-shaped openings 9 respectively. The knife handle 1 and the knife bar 2 are integrally formed.

This embodiment separately sets up cutter arbor 2, blade 3 and clear bed knife 4, and blade 3 and clear bed knife 4 all weld on cutter arbor 2, have avoided the higher problem of alloy cost who leads to the fact with the integrative setting of three.

For a better understanding of the present invention, the following is a complete description of the working principle of the present invention:

when the wood cutting machine is used, the cutter holder drives the cutter handle 1 to rotate, the cutter handle 1 drives the cutter rod 2 to rotate, and then the cutter blade 3 welded on the cutter rod 2 and the bottom cleaning cutter 4 are driven to rotate to process wood.

When wood is machined, the blade 3 cuts wood, the bottom clearing cutter 4 drills the wood, when the bottom clearing cutter 4 drills, a chip removal cavity is formed between the inclined surface and the bottom end of a drilled wood hole, wood chips generated by drilling of the bottom clearing cutter 4 are discharged outwards from the chip removal cavity, the end surface is the inclined surface, the distance between the inclined surface and the bottom end of the drilled wood hole is gradually increased from inside to outside, namely the chip removal cavity is gradually widened from inside to outside, the wood chips generated by drilling after the wood chips are extruded outwards under the rotary cutting action of the bottom clearing cutter 4, the wood chips are smoothly discharged from the narrower inner end of the chip removal cavity to the wider outer end and are not clamped in the chip removal cavity.

The embodiments of the present invention have been described in detail, but the present invention is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and the equivalents or substitutions are included in the scope of the present invention defined by the claims.

Claims

1. The utility model provides a woodworking tool with clear bed knife just makes things convenient for chip removal which characterized in that: comprises a knife handle (1), a knife bar (2), a blade (3) and a bottom clearing knife (4);

the cutter handle (1) is connected with the cutter bar (2), a plurality of blades (3) are arranged, each blade (3) is installed on the cutter bar (2) along the length direction of the cutter bar (2), and the top end of each blade (3) protrudes out of the top end face of the cutter bar (2); the bottom clearing cutter (4) is installed on the top end face of the cutter bar (2) and protrudes out of the top end face of the cutter bar (2), the top end faces of the cutter bars (2) on the periphery of the bottom clearing cutter (4) are inclined planes (5), and an included angle between each inclined plane (5) and the protruding portion of the bottom clearing cutter (4) is an obtuse angle.

2. The woodworking tool of claim 1, wherein: one end of the inclined plane (5) is connected to the outer side wall of the bottom cleaning cutter (4), and the other end of the inclined plane is connected to the outer side wall of the cutter bar (2).

3. The woodworking tool of claim 1, wherein: the included angle between the inclined plane (5) and the protruding part of the bottom cleaning knife (4) is 100 degrees and 110 degrees.

4. The woodworking tool of claim 1, wherein: the bottom cleaning knife (4) is positioned in the middle of the top end face of the knife rod (2) and between the plurality of blades (3).

5. The woodworking tool of claim 1, wherein: the knife edge of the bottom clearing knife (4) comprises a first knife edge (6) and a second knife edge (7) which are symmetrical and have opposite knife edge directions.

6. The woodworking tool of claim 1, wherein: the top end face of the cutter bar (2) is provided with a bottom cleaning cutter mounting groove (8), and the bottom cleaning cutter (4) is welded on the bottom cleaning cutter mounting groove (8).

7. The woodworking tool of claim 1, wherein: the cutter arbor (2) is cylindric to L type mouth (9) have been seted up along cutter arbor (2) length direction, blade (3) welding is in L type mouth (9) department and hug closely the both ends face of L type mouth (9), and the lateral wall of outside protrusion cutter arbor (2).

8. The woodworking tool of claim 7, wherein: the plurality of blades (3) are arranged on the outer side wall of the cutter bar (2) along the circumferential direction of the cutter bar (2).

9. The woodworking tool of claim 8, wherein: the two L-shaped openings (9) are arranged, and the two blades (3) are welded at the two L-shaped openings (9) respectively.

10. The woodworking tool of claim 1, wherein: the knife handle (1) and the knife bar (2) are integrally formed.