CN102729272A

CN102729272A - Chip-free cutting apparatus used for plastic section bar

Info

Publication number: CN102729272A
Application number: CN201210232837XA
Authority: CN
Inventors: 余尚洋
Original assignee: ANHUI NEXTOOL EXTRUSION TECHNOLOGY Co Ltd
Current assignee: ANHUI NAIKE EQUIPMENT TECHNOLOGY Co.,Ltd.
Priority date: 2012-07-06
Filing date: 2012-07-06
Publication date: 2012-10-17
Anticipated expiration: 2032-07-06
Also published as: CN102729272B

Abstract

The invention relates to a chip-free cutting apparatus used for a plastic section bar. The apparatus comprises a worktable, a support, a driving cylinder, a cutting knife and a knife rest. The driving cylinder is fixed on the support, and the cutting knife is fixed at the bottom of the knife rest. The knife rest can horizontally and slidably fixed on bottom end of the driving cylinder along a cutting edge direction of the cutting knife. A guide groove is arranged on the support, wherein the guide groove inclines or bends to one side of the cutting knife from top to bottom. A follower cooperated with the guide groove is fixed on one end of the knife rest. According to the invention, simple upper and lower cutting motion is converted into a cutting motion of cutting while sliding, such that cutting resistance is buffered and tipping of the cutting knife is prevented so as to prolong a service life of the cutting knife, and improve safety performance of the equipment.

Description

The no-chip cutting device that is used for plastic material

Technical field

The present invention relates to a kind of cutter sweep that is used for the processing plastic section bar, is a kind of no-chip cutting device that is used for plastic material specifically.

Background technology

In the present known plastic material no-chip cutting device, normally adopt cutting knife cutting mode vertically, promptly the drive device drives cutting knife cuts section bar vertically downward.The advantage of this cutting mode is that device structure is simple, and shortcoming is that cutting pressure is wayward, if cutting pressure is too small, then can't cut section bar, and perhaps section bar influences the section material appearance quality in cutting part flexural deformation; If cutting pressure is excessive, because cutting knife suffered impulsive force of moment is excessive, then the easy tipping of cutting knife bring great hidden danger for production and maintenance, and utilization rate of equipment and installations is not high, and production cost increases.

Summary of the invention

The objective of the invention is provides a kind of no-chip cutting device that is used for plastic material to the weak point that exists in the prior art, can effectively prevent the cutting knife tipping, prolongs cutting knife service life, and can improve device '.

For realizing above-mentioned purpose; The present invention has adopted following technical scheme: comprise workbench, support, driving cylinder, cutting knife and knife rest; Drive cylinder and be fixed on the support, cutting knife is fixed on the knife rest lower end, and said knife rest can be fixed on the driving cylinder end horizontally slidingly along the cutting knife edge direction; Support is provided with from top to bottom to cutting knife lopsidedness or crooked gathering sill, and knife rest one end is fixed with the follower that cooperates with gathering sill.

Because cutting knife, follower link together with knife rest, when the driving cylinder promoted downwards that knife rest is descending to be cut, follower moved along gathering sill; Make when cutting knife moves downward; Along the horizontal slip of cutting knife edge direction, thereby can cushion the cutting resistance, prevent the cutting knife tipping.

According to the thickness of section bar or the difference of structure, gathering sill can be skewed slot at the uniform velocity, makes that cutting knife is descending to remain a constant speed; Perhaps gathering sill top is set to the vertically-guided groove, and the bottom is set at the uniform velocity skewed slot, makes cutting knife descending fast before near section bar, keeps low speed during the cutting section bar; Perhaps gathering sill is set to curved speed change gathering sill, makes and slows down gradually when cutting knife is descending.

Can know from technique scheme; The present invention can cushion the cutting resistance through changing cutting knife the cutting action of limit slip limit incision into by original simple cutting action up and down, prevents the cutting knife tipping; Thereby can prolong cutting knife service life, improve device '.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is along A-A line cutaway view among Fig. 1;

Fig. 3 is along B-B line cutaway view among Fig. 1;

Fig. 4 is three kinds of embodiment sketch mapes of gathering sill of the present invention.

The specific embodiment

As shown in Figure 1; Support 1 is fixed on workbench 10 1 sides; Drive cylinder 3 and be fixed on the upper end of support 1 by bolt 12, support 1 side is provided with from top to bottom to cutting knife 8 lopsidedness or crooked gathering sill 11, knife rest 1 one ends be fixed with support 1 on the ball bearing follower 2 that cooperates of gathering sill 11; Referring to Fig. 2, cutting knife 8 is fixed on knife rest 7 lower ends.

Knife rest 7 is connected with the cylinder head 31 that drives cylinder 3 through the horizontal slip device; Its structure is as shown in Figure 3; Guide rail bracket 4 is fixed on cylinder head 31 lower ends that drive cylinder through bolt 41, and line slideway 5 is fixed on guide rail bracket 4 lower ends by bolt 51 along the horizontal direction that the cutting knife cutting edge belongs to the plane, and slide block 6 is by bolt 71 immovable supports 7 upper ends; The chute that cooperates with line slideway 5 cross sectional shapes is arranged on the slide block 6, and slide block 6 is suspended on the line slideway 5 through chute.

Gathering sill 11 can adopt three kinds of structures as shown in Figure 4, and gathering sill 11a top is the vertically-guided groove of quick fraction, and cutting knife is descending fast before near section bar 9, and the bottom is set to the at the uniform velocity skewed slot of low speed segment, keeps low speed during the cutting section bar; Gathering sill 11b is curved speed change gathering sill, slows down gradually when cutting knife is descending; Gathering sill 11c is skewed slot at the uniform velocity, and cutting knife remains uniform descending.

During cutting; The cylinder head 31 that drives cylinder 3 is descending;, drive follower 2 and move downwards to knife rest 7 F that exerts pressure through line slideway 5, slide block 6, make knife rest 7 when Z axially moves down along gathering sill 11; Do the horizontal slip of Y direction through slide block 6 along line slideway 5, thus make cutting knife 8 produce along Z axially down perpendicular cut and move along the sliding cutting of Y direction.Cutting forces according to different section bar 9 size is required are different with cutting speed, and the gathering sill track that can select to be fit to is adjusted the movement locus of cutting.

Claims

1. the no-chip cutting device that is used for plastic material; Comprise workbench (10), support (1), drive cylinder (3), cutting knife (8) and knife rest (7); Driving cylinder (3) is fixed on the support (1); Cutting knife (8) is fixed on knife rest (7) lower end, it is characterized in that: said knife rest (7) can be fixed on horizontally slidingly along the cutting knife edge direction and drive cylinder (3) bottom; Support (1) is provided with from top to bottom to cutting knife (8) lopsidedness or crooked gathering sill (11), and knife rest (7) one ends are fixed with the follower (2) that cooperates with gathering sill (11).

2. the no-chip cutting device that is used for plastic material according to claim 1 is characterized in that: gathering sill is skewed slot at the uniform velocity.

3. the no-chip cutting device that is used for plastic material according to claim 1 is characterized in that: gathering sill top is the vertically-guided groove, and the bottom is skewed slot at the uniform velocity.

4. the no-chip cutting device that is used for plastic material according to claim 1 is characterized in that: gathering sill is curved speed change gathering sill.