CN216397678U

CN216397678U - Be applied to cutting scrap puncture knife of preventing on drawing die

Info

Publication number: CN216397678U
Application number: CN202121767553.1U
Authority: CN
Inventors: 李汉圻
Original assignee: Wuhan Qizhongbang Technology Co ltd
Current assignee: Wuhan Qizhongbang Technology Co ltd
Priority date: 2021-07-31
Filing date: 2021-07-31
Publication date: 2022-04-29
Anticipated expiration: 2031-07-31

Abstract

The utility model discloses a chip-preventing puncture knife applied to a drawing die, which comprises a puncture knife body and a sheath body, wherein a telescopic rod is installed on the inner top wall of the puncture knife body, a spring is installed on the outer wall of the telescopic rod, a round block is installed at one end of the spring, a limiting block is installed on the inner top wall of the puncture knife body, and the limiting block is located on one side of the telescopic rod. According to the utility model, the round block, the telescopic rod and the puncture cutter body are arranged, the puncture cutter body moves downwards, when the bottom of the round block contacts with a raw material, the round block is blocked by the raw material, the round block stops moving downwards, the puncture cutter body continues to move downwards, when the cutting edge contacts with the raw material, the round block is resisted by the limiting block, the puncture cutter body starts to cut the raw material, the round block is pushed by the limiting block and also moves downwards along with the puncture cutter, the outer wall of the puncture cutter body and the inner wall of the sheath body mutually extrude the raw material, so that the raw material is cut off, chips attached to the cutting edge are driven by the power-accumulating spring to pop out the round block, and the chips fall into the collection box along the inner wall of the sheath body.

Description

Be applied to cutting scrap puncture knife of preventing on drawing die

Technical Field

The utility model relates to the technical field of a piercing cutter of a drawing die, in particular to a scrap cutting prevention piercing cutter applied to the drawing die.

Background

The drawing die is called drawing die, the part of the non-developable surface workpiece is locally stretched or drawn in the drawing process, so the drawing die is called drawing die or drawing die by some people, the drawing die mainly comprises five parts, a fixed seat, a blank holder, an ejector, a female die and a male die, and a piercing cutter is used for punching the inner side to make the plate easy to flow.

The existing piercing knife of the drawing die has the defects that:

1. the utility model discloses a comparative document CN209465518U, which discloses a chip-cutting-prevention piercing knife applied to a drawing die, and the protection right' of the utility model relates to a chip-cutting-prevention piercing knife applied to a drawing die. The chip-cutting-preventing piercing cutter comprises a piercing cutter male die and a piercing cutter female die, wherein the piercing cutter male die is installed in a drawing female die, the piercing cutter female die is installed in the drawing male die, and the cutting edge of the piercing cutter male die matched with the piercing cutter female die is a round angle. Compared with the traditional drawing puncture knife, the scrap cutting prevention puncture knife changes the shape of the cutting edge of a punch of the puncture knife, the original shape is a right angle, the existing shape is changed into an R2 round angle, the original blanking and cutting of a plate material is changed into tearing and cutting, and a large amount of scrap iron generated in the blanking and cutting process is avoided; the blanking gap between the traditional piercing cutter male die and the piercing cutter female die is 0.08mm, and is changed into 1mm at present, so that the material flowing space is ensured; the puncturing time can be adjusted by changing the thickness of the adjusting shim, so that the punching process requirement is met, but the cutting chips can be attached to the cutting edge after the puncturing knife is used for cutting, and if the cutting is not processed, the influence can be caused when the knife is lifted for secondary cutting;

2. when the cutting time of the existing drawing die puncture knife is long, the temperature of the knife body is high, and the knife body can be damaged.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a chip-puncture-preventing knife applied to a drawing die, so as to solve the problems of chip treatment and temperature rise of a knife body in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a chip-preventing piercing cutter applied to a drawing die comprises a piercing cutter body and a sheath body, wherein a telescopic rod is mounted on the top wall of the inner part of the piercing cutter body;

the outer wall of the telescopic rod is provided with a spring, one end of the spring is provided with a round block, the inner top wall of the puncture cutter body is provided with a limiting block, and the limiting block is positioned on one side of the telescopic rod.

Preferably, the inner wall of the sheath body is provided with a guide rail groove, a guide rail is installed on the inner wall of the guide rail groove, a fixing rod is installed on the outer wall of the guide rail, a sliding block is installed on the outer wall of the other side of the guide rail, and the box body is installed on the outer wall of the sliding block.

Preferably, the top of the box body is provided with a motor, and the output end of the motor extends into the box body.

Preferably, the output end of the motor is provided with a gear, the outer wall of the gear is connected with the outer wall of the fixing rod, and the outer wall of the box body is provided with a friction plate.

Preferably, the outer wall of the sheath body is provided with a drawing die male die, the bottom of the sheath body is provided with a collecting box, the bottom of the piercing cutter body is provided with a cutting edge, and the top of the piercing cutter body is provided with a water tank.

Preferably, the inside diapire of water tank is equipped with the round hole, and the bottom of round hole extends out the bottom of water tank, and the dog is installed at the top of round hole.

Preferably, the water pipe is installed at the top of the round block of telling, and the top of water pipe extends into the inside of round block, and the outer wall and the top of round block are equipped with the apopore.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the round block, the telescopic rod and the puncture cutter body are arranged, the puncture cutter body moves downwards, when the bottom of the round block is contacted with a raw material, the round block is blocked by the raw material, the round block stops moving downwards, the puncture cutter body continues moving downwards, at the moment, the spring starts to accumulate force, when the cutting edge is contacted with the raw material, the round block is resisted by the limiting block, the cutting edge starts to cut the raw material, the round block is pushed by the limiting block and also moves downwards along with the puncture cutter, the cutting edge and the inner wall of the sheath body are mutually extruded to cut off the raw material, the chip attached to the cutting edge is driven by the spring accumulating force to pop up the round block, and the popped up chip falls into the collecting box along the inner wall of the sheath body, so that the possibility that the chip affects next work is eliminated;

2. according to the utility model, the water tank and the water outlet hole are arranged, when the round block is propped by the limiting block, the water outlet pipe at the top of the round block pushes the stop block at the bottom wall inside the water tank to enable water in the water tank to flow into the inner wall of the round block along the water pipe, the water outlet hole at the top of the round block starts to flow out of water, the round block is propped by the raw material to store the water at the top of the round block, the effect of cooling the inner wall of the piercing cutter body is achieved, after the raw material is cut off, the round block is not propped by the raw material, the round block is driven by the elastic force of the spring to move downwards, the water flows into the inner wall of the sheath body from a gap between the round block and the cutting edge, and the water flows into the collecting box along the inner wall of the sheath body.

Drawings

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

FIG. 2 is a schematic view of the piercing blade body of the present invention;

FIG. 3 is a schematic structural diagram of the case of the present invention;

fig. 4 is a schematic view of the appearance structure of the present invention.

In the figure: 1. piercing the knife body; 101. a sheath body; 102. cutting edges; 103. drawing a male die; 104. a collection box; 2. a round block; 201. a limiting block; 202. a spring; 203. a telescopic rod; 3. a guide rail groove; 301. a box body; 302. a guide rail; 303. fixing the rod; 304. a slider; 305. a motor; 306. a gear; 307. a friction plate; 4. a water tank; 401. a stopper; 402. a water pipe; 403. a water outlet hole; 404. a circular hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, fig. 2 and fig. 4, an embodiment of the present invention: a chip-preventing piercing knife applied to a drawing die comprises a piercing knife body 1 and a sheath body 101, a drawing die male die 103 is mounted on the outer wall of the sheath body 101, a collecting box 104 is mounted at the bottom of the sheath body 101, a cutting edge 102 is mounted at the bottom of the piercing knife body 1, a water tank 4 is mounted at the top of the piercing knife body 1, the piercing knife body 1 plays a role in fixing the cutting edge 102, cutting of raw materials is completed through shearing force between the sheath body 101 and the cutting edge 102, collection of chips and waste water is completed through the collecting box 104, and the drawing die male die 103 plays a role in fixing the sheath body 101.

Referring to fig. 1 and 2, the inner top wall of the lancet body 1 is provided with a telescopic rod 203, the outer wall of the telescopic rod 203 is provided with a spring 202, one end of the spring 202 is provided with a round block 2, the inner top wall of the lancet body 1 is provided with a limiting block 201, and the limiting block 201 is positioned at one side of the telescopic rod 203, the piercing cutter body 1 moves downwards, when the bottom of the round block 2 contacts the raw material, the round block 2 is stopped by the raw material, the round block 2 stops moving downwards, the piercing cutter body 1 continues moving downwards, the spring 202 starts to accumulate force, when the cutting edge 102 contacts with the raw material, the round block 2 is supported by the limiting block 201, the cutting edge 102 starts to cut the raw material, the piercing cutter body 1 fixes the limiting block 201, the limiting block 201 moves downwards to push the round block 2 to move downwards, the outer wall of the cutting edge 102 and the inner wall of the sheath body 101 are mutually extruded to cut off the raw material, the power-accumulating spring 202 extends to drive the round block 2 to move, and the cutting chips attached to the cutting edge 102 are ejected.

Referring to fig. 1 and 3, the inner wall of the sheath 101 is provided with a guide rail groove 3, the inner wall of the guide rail groove 3 is provided with a guide rail 302, the outer wall of the guide rail 302 is provided with a fixing rod 303, the outer wall of the other side of the guide rail 302 is provided with a sliding block 304, the outer wall of the sliding block 304 is provided with a box body 301, the top of the box body 301 is provided with a motor 305, and the output end of the motor 305 extends into the interior of the cabinet 301, the output end of the motor 305 is provided with a gear 306, and the outer wall of the gear 306 is connected with the outer wall of the fixing rod 303, the outer wall of the box body 301 is provided with a friction plate 307, when the outer wall of the cutter body 1 is punctured and moves to the inner wall of the sheath body 101, the motor 305 rotates to drive the gear 306 to rotate, the gear 306 rotates to drive the box body 301 to move on the outer wall of the guide rail 302, the friction plate 307 on the outer wall of the box body 301 is matched with the outer wall of the piercing cutter body 1, fine chips on the outer wall of the piercing cutter body 1 are rubbed and dropped by the friction plate 307, and the guide rail groove 3 plays a role in fixing the guide rail 302.

Please refer to fig. 2, the inner bottom wall of the water tank 4 is provided with a circular hole 404, and the bottom of the circular hole 404 extends out of the bottom of the water tank 4, a stop block 401 is installed at the top of the circular hole 404, a water pipe 402 is installed at the top of the round block 2, and the top of the water pipe 402 extends into the round block 2, the outer wall and the top of the round block 2 are provided with a water outlet 403, when the round block 2 is supported by the limiting block 201, the water outlet pipe 402 at the top of the round block 2 pushes the stop block 401 at the inner bottom wall of the water tank 4, so that the water tank 4 flows into the inner wall of the round block 2 through the water pipe 402, the water outlet 403 at the top of the round block 2 starts to flow water, which has a cooling effect on the inner wall of the piercing cutter body 1, and the circular hole 404 provides a passage for the pushing out of the water pipe 402.

The working principle is that the piercing cutter body 1 moves downwards, when the bottom of the round block 2 contacts with the raw material, the round block 2 is blocked by the raw material, the round block 2 stops moving downwards, the piercing cutter body 1 continues moving downwards, the spring 202 starts to accumulate force, when the cutting edge 102 contacts with the raw material, the round block 2 is resisted by the limiting block 201, the cutting edge 102 starts to cut the raw material, the piercing cutter body 1 fixes the limiting block 201, the limiting block 201 moves downwards to push the round block 2 to move downwards, the raw material is cut off due to mutual extrusion of the outer wall of the cutting edge 102 and the inner wall of the sheath body 101, the spring 202 with accumulated force extends to drive the round block 2 to move, chips attached to the cutting edge 102 are ejected, the chips fall into the collecting box 104, when the round block 2 is resisted by the limiting block 201, the water outlet pipe 402 at the top of the round block 2 props against the stop 401 at the inner bottom wall of the water tank 4, water in the water tank 4 flows into the inner wall of the round block 2, and the water outlet hole 403 at the top of the round block 2 starts to flow out, at this time, the round block 2 is supported by the raw material, the water flow is stored at the top of the round block 2, the effect of cooling the inner wall of the knife body 1 is achieved, after the raw material is cut off, the round block 2 is driven by the elastic force of the spring 202 to move downwards, the water flow flows into the inner wall of the sheath body 101 from the gap between the round block 2 and the cutting edge 102, and the water flow flows into the collecting box 104 along the inner wall of the sheath body 101.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a be applied to cutting waste puncture sword on drawing die, includes puncture cutter body (1) and sheath body (101), its characterized in that: the top wall of the inner part of the piercing cutter body (1) is provided with a telescopic rod (203);

the outer wall of the telescopic rod (203) is provided with a spring (202), one end of the spring (202) is provided with a round block (2), the inner top wall of the puncture cutter body (1) is provided with a limiting block (201), and the limiting block (201) is positioned on one side of the telescopic rod (203).

2. A chip-piercing-preventing knife applied to a drawing die as set forth in claim 1, wherein: the inner wall of the sheath body (101) is provided with a guide rail groove (3), a guide rail (302) is installed on the inner wall of the guide rail groove (3), a fixing rod (303) is installed on the outer wall of the guide rail (302), a sliding block (304) is installed on the outer wall of the other side of the guide rail (302), and a box body (301) is installed on the outer wall of the sliding block (304).

3. A chip-piercing-preventing knife applied to a drawing die as set forth in claim 2, wherein: the top of box (301) is installed motor (305), and the output of motor (305) extends into the inside of box (301).

4. A chip-piercing-preventing knife applied to a drawing die as set forth in claim 3, wherein: the output end of the motor (305) is provided with a gear (306), the outer wall of the gear (306) is connected with the outer wall of the fixing rod (303), and the outer wall of the box body (301) is provided with a friction plate (307).

5. A chip-piercing-preventing knife applied to a drawing die as set forth in claim 1, wherein: the drawing die male die (103) is installed on the outer wall of the sheath body (101), the collecting box (104) is installed at the bottom of the sheath body (101), the cutting edge (102) is installed at the bottom of the puncture cutter body (1), and the water tank (4) is installed at the top of the puncture cutter body (1).

6. A chip-piercing-preventing knife applied to a drawing die as set forth in claim 5, wherein: the inside diapire of water tank (4) is equipped with round hole (404), and the bottom of round hole (404) extends out the bottom of water tank (4), and dog (401) are installed at the top of round hole (404).

7. A chip-piercing-preventing knife applied to a drawing die as set forth in claim 1, wherein: the water pipe (402) is installed at the top of the round block (2), the top of the water pipe (402) extends into the round block (2), and the outer wall and the top of the round block (2) are provided with water outlet holes (403).