CN2122866U

CN2122866U - Fibre cutter

Info

Publication number: CN2122866U
Application number: CN 92206234
Authority: CN
Inventors: 王俊
Original assignee: Shishou City No1 Textile Machinery Factory
Current assignee: Shishou City No1 Textile Machinery Factory
Priority date: 1992-04-01
Filing date: 1992-04-01
Publication date: 1992-11-25

Abstract

The utility model relates to a fiber cutter, at least comprising an engine block, a fiber input mechanism, a fiber output device, a fixed knife and a movable knife which can relatively rotate corresponding to the fixed knife, and the movable knife is provided at least two cutting edges. The utility model is characterized in that the directions of shear angles of any two contiguous cutting edges of the movable knife are mutually contrary. The utility model can be used for cutting cotton, hemp, wool, silk and chemical fiber fabric, and the service life of the cutting edge is long.

Description

Fibre cutter

The utility model relates to a kind of equipment of cut staple, especially for the fibre cutting machine that cuts off cotton, fiber crops, hair, silk, chemical fibre.

Existing fibre cutting machine comprises the moving knife that fiber input mechanism, fiber output device, stationary knife and relative stationary knife rotate at least, power has 2,4 or 6 blades usually, in order to reduce the required torque of arbitrary instantaneous trip fiber, reduce power consumption and vibrations, the general relative stationary knife sword of moving knife sword has an inclination angle, be the angle of shear so that in when work, the moving knife sword can be successively with the fibre cutting that is arranged between it and the stationary knife.But the problem of bringing therefrom is, described angle of shear regular meeting passes (especially when blade is more blunt) with fiber towards the subtended angle direction, and the time one is long, and just the side at cutting machine causes fiber accumulations, thereby quickened that this side is moved, the wearing and tearing of stationary knife sword.

For this reason, the purpose of this utility model is to avoid above-mentioned the deficiencies in the prior art, and a kind of improved fibre cutting machine is provided, and it can be because of the angle of shear cause fiber accumulations in a side of blade, with guarantee to move, the uniform wear of stationary knife sword each point.

The technical scheme that realizes the utility model purpose is: a kind of fibre cutting machine, at least comprise the moving knife that body, fiber input mechanism, fiber output device, stationary knife and relative stationary knife rotate, moving knife has two blades at least, it is characterized in that: the direction of the angle of shear of any two adjacent moving knife blades is opposite each other.

And the angle of the angle of shear is 4 °～5 °.

And, above the fiber input mechanism, be provided with hard thing detector.

By analysis to above-mentioned formation, the applicant thinks: because the direction of the angle of shear of any two adjacent moving knife swords is opposite each other, like this, when a certain moving knife sword with fiber when direction is passed, the next angle of shear direction moving knife sword opposite that so then rotates and come with it, fiber will be passed to another way, thereby overcome the deficiency that fiber is easily piled up towards a side, also guarantee the uniform wear of each point on moving, the stationary knife sword simultaneously.

The utility model is described in further detail below with reference to accompanying drawing:

Fig. 1 is the integrally-built front view of this fibre cutting machine of signal.

Fig. 2 is along Fig. 1 " A-A " enlarged drawing of locating.

With reference to Fig. 1, Fig. 2, be provided with fiber input mechanism ［ 4 ］ in the body ［ 1 ］, this mechanism can be by motor (be positioned at after the speed changer, show among the figure), speed changer ［ 11 ］, chain-drive mechanism ［ 14 ］, conveyer belt ［ 2 ］ and the pressure roller ［ 17 ］ and carrying roller ［ 15 ］ formation of dredging fiber.Carrying roller ［ 15 ］ is positioned at the end of conveyer belt ［ 2 ］, stationary knife ［ 5 ］ is right after at carrying roller ［ 15 ］ afterwards, the moving knife that rotates ［ 8 ］ is positioned at the side top of stationary knife ［ 5 ］, the movement locus of moving knife blade ［ 7 ］ and stationary knife blade ［ 6 ］ the spacing at approaching place are-0.1～0 millimeter (being regulated by screw mandrel ［ 16 ］), that is by move, stationary knife blade ［ 6,7 ］ relative shear campaign to each other comes cut staple.During work, treat that cut staple should evenly be layered on the conveyer belt ［ 2 ］, speed changer ［ 11 ］, chain-drive mechanism ［ 14 ］ change rotatablely moving of motor into the rectilinear motion of conveyer belt ［ 2 ］.The shearing length of fiber is to realize that by the speed (promptly adjusting the speed of speed changer) of adjusting conveyer belt ［ 2 ］ speed of conveyer belt ［ 2 ］ is fast more, and the fiber of cut-out is just long more, otherwise then short more.Generally, speed adjustable range should satisfy fibre fixed-length can be regulated between 2～180 millimeters, and preferably can realize the continuous variation of fibre fixed-length with stepless speed regulation.

Moving knife ［ 8 ］ is by two bearing blocks ［ 18 ］ supportings that are fixed on the body ［ 1 ］, and drives its rotation by motor ［ 12 ］ by belt gear ［ 13 ］, a side of moving knife ［ 8 ］ spool energy storage flywheel ［ 20 ］ that also is being connected.On 360 ° of circumference of moving knife ［ 8 ］, can uniform 2 or 4 or 6 blades ［ 7 ］, the angle of each blade ［ 7 ］ angle of shear ［ 19 ］ is 4 °～5 °, and the direction of the angle of shear ［ 19 ］ of per two adjacent edge ［ 7 ］ is opposite each other, piles up towards a side of blade ［ 6,7 ］ to avoid fiber.

In order to prevent that hard thing is strayed into the fibre cutting district, suggestion is set up a hard thing detector ［ 3 ］ in the top of conveyer belt ［ 2 ］, as permanent magnet or electromagnet, when the hard thing of metal species thereunder desire with conveyer belt ［ 2 ］ by the time, magnet can be in time with its sucking-off; Meanwhile; this hard thing detector ［ 3 ］ can also be a kind of certificate is sent signal ［ 10 ］ by thing density a sensor; pass through thing (except that metal when what have a certain degree of hardness; also comprise wooden unit that stone or density are bigger etc.) during through detector ［ 3 ］; it just in time sends the signal ［ 10 ］ that makes the motor shutdown that drives conveyer belt ［ 2 ］, to avoid hard thing damage blade ［ 6,7 ］.

Be provided with one in below moving, stationary knife blade ［ 6,7 ］ the fiber that cuts off sent output device ［ 9 ］ outside the machine, this device can be an oblique guide groove, also can be a conveyer belt ［ 2 ］ that is similar to input mechanism ［ 4 ］.

Claims

1, a kind of fibre cutting machine, at least comprise body [1], fiber input mechanism [4], the moving knife [8] that fiber output device [9], stationary knife [5] and relative stationary knife [5] rotate, moving knife [8] has two blades [7] at least, it is characterized in that: the direction of the angle of shear [19] of any two adjacent moving knife blades [7] is opposite each other.

2, fibre cutting machine according to claim 1 is characterized in that: the angle of the angle of shear (18) is 4 °～5 °.

3, fibre cutting machine according to claim 1 and 2 is characterized in that: the top in fiber input mechanism (2) is provided with hard thing detector (3).