CN102286807B

CN102286807B - Comber

Info

Publication number: CN102286807B
Application number: CN201110158895.8A
Authority: CN
Inventors: 新原正己
Original assignee: Toyota Industries Corp
Current assignee: Toyota Industries Corp
Priority date: 2010-06-16
Filing date: 2011-06-14
Publication date: 2015-04-29
Anticipated expiration: 2031-06-14
Also published as: EP2397584A2; CN102286807A; JP5782683B2; EP2397584B1; JP2012001843A; EP2397584A3

Abstract

A comber includes first and second detaching rollers arranged forward of and rearward of each other. The first and second detaching rollers are rotated in a forward direction and a reverse direction in synchronization with swinging motion of a nipper frame. A first roller shaft of the first detaching roller is driven at both axial ends by two first motors, which can rotate in a forward direction and a reverse direction. A second roller shaft of the second detaching roller is driven at both axial ends by two second motors, which can rotate in a forward direction and a reverse direction. The first motors and the second motors are driven in synchronization with each other.

Description

Combing machine

Technical field

The present invention relates to a kind of combing machine, more specifically, relate to a kind of combing machine being characterised in that the structure of detaching roller.

Background technology

Combing machine comprises nipper equipment and combing cylinder.The lap of supply is remained on the retracted position of nipper equipment by nipper equipment.The end of combing lap is by combing cylinder combing.This removes staple fibre from lap, lap is changed into knitting wool (fleece).Along with nipper equipment advances, knitting wool moves towards detaching roller.Detaching roller is in response to before knitting wool and then along counter-rotating, and the knitting wool obtained before (at first knitting wool) is return.Then, overlapping in the front inlet side of the tail end of first knitting wool and the knitting wool (follow-up knitting wool) of new combing.Subsequently, detaching roller rotates with forward direction, thus obtains knitting wool for being joined first knitting wool by follow-up knitting wool from nipper equipment.The tail end of follow-up knitting wool is by top comb combing.

Detaching roller is typically by the rotary actuation of the driving shaft of the combing cylinder driven by main motor, and this rotation is via gear apparatus transmission.Gear apparatus has very complicated structure, and the object with relatively large quality needs to carry out front and back pivotable by detaching roller.Therefore, combing machine that a kind of detaching roller drives by dedicated motor (be the Japanese Laid-Open Patent of 2-216225 see publication number) is proposed.Be that in the combing machine of Japanese Laid-Open Patent announcement of 2-216225, gear 53a, 54a are fixed to the first end of the axle 53,54 of detaching roller 51,52 as shown in Figure 4 in sequence number.Gear 53a, 54a and axle 53,54 are overall rotatable.Gear 53a, 54a engage with gear 57, and gear 57 is driven by motor 55 via V belt translation equipment 56.Motor 55 can rotate along forward direction and reverse direction.In the device, detaching roller 51,52 rotates along forward direction or reverse direction according to the direction of rotation of motor 55.

Sequence number is that the Japanese Laid-Open Patent of 2-216225 announces the structure also disclosing a kind of axle 53,54 and driven by different motor 55.Particularly, the structure shown in Fig. 4 is modified by removing the gear 54a of axle 54, makes motor 55 via V belt translation equipment 56 and gear 57,53a only driving shaft 53.On the other hand, the second motor rotated along forward direction and reverse direction is arranged on the second end place of axle 54.Axle 54 is driven by the second motor via the V belt translation equipment similar with the V belt translation equipment and gear that are arranged on first end place and gear.

Sequence number is that the Chinese patent of CN100999837A announces the configuration proposing a kind of single detaching roller and driven by the motor of one of them be separately positioned in end.Announce according to the Chinese patent that sequence number is CN100999837A, the first detaching roller 61 is driven by the servo motor 62,63 at two ends as shown in Figure 5, and the second detaching roller 64 drives via Timing Belt 65.

Typical combing machine has the operation part being furnished with eight combing heads, and the axle of detaching roller has the length extending the whole length of this operation part.Be the structure of the Japanese Laid-Open Patent announcement of 2-216225 according to sequence number, one end of the axle of each detaching roller is driven.This configuration may produce torsion on axle.In recent years, expect that the speed of combing machine increases, to improve output.But the speed that combing machine increases produces larger torsion.

Be in the configuration of Chinese patent announcement of CN100999837A in sequence number, wherein the end of the first detaching roller driven by motor and the second detaching roller via synchronously bringing driving, the durability of Timing Belt is not enough to rotary speed (such as, corresponding with the combing cylinder rotary speed of 300rpm or higher rotary speed) the rotating separation roller increased.

Summary of the invention

Therefore, the object of the present invention is to provide a kind of combing machine, it can need the detaching roller of high moment of torsion with high-speed driving.

In order to realize aforementioned object, according to an aspect of the present invention, provide a kind of combing machine, it comprises the first and second detaching rollers arranged each other.The oscillating motion of the first and second detaching rollers and nipper framework synchronously rotates along forward direction and reverse direction.The first roller axle of the first detaching roller is driven by two the first motors at two axial end places, and two the first motors can rotate along forward direction and reverse direction.Second roller shaft of the second detaching roller is driven by two the second motors at two axial end places, and two the second motors can rotate along forward direction and reverse direction.First motor and the second motor are by driving synchronized with each other.

In conjunction with the accompanying drawing describing the principle of the invention in an illustrative manner, other aspects and advantages of the present invention will become obvious from explanation below.

Accompanying drawing explanation

By referring to below to description and the accompanying drawing of currently preferred embodiment, the present invention and object thereof and advantage can be understood, in accompanying drawing best:

Fig. 1 is the schematic side elevation that combing head is according to an embodiment of the invention shown;

Fig. 2 A is for illustrating the schematic plan view of the detaching roller shown in Fig. 1;

Fig. 2 B is the diagram of the position relationship illustrated between detaching roller and motor;

Fig. 3 is the diagram corresponding with Fig. 2 B that another embodiment is shown;

Fig. 4 is the schematic plan view that traditional detaching roller drive part is shown; With

Fig. 5 is the schematic plan view that another traditional detaching roller drive part is shown.

Detailed description of the invention

Now with reference to Fig. 1 to Fig. 2 B, one embodiment of the present of invention are described.

Typical combing machine has operation part, is provided with eight combing heads in operation part.As shown in Figure 1, combing head 11 comprises nipper equipment 14, combing cylinder 15 and two pairs of detaching rollers 16,17 with a pair lap roller 12 and feeding roller 13, and often pair of detaching roller is arranged along the longitudinal direction.Nipper equipment 14 has nipper framework 18, and it is positioned at above combing cylinder 15, can wave along advancing and returning direction.Bottom nipper 19 is arranged on the bottom of nipper framework 18.Nipper arm 20 is pivotably connected to nipper framework 18 by back shaft 18a, and top nipper 20a is fixed to the end of nipper arm 20.With nipper framework 18 advance and return direction motion synchronous in, top nipper 20a with predetermined timing open and close, to cooperate with bottom nipper 19 keep lap L.Top comb 21 is attached to nipper framework 18.Top comb 21 is positioned at nipper 19 front, bottom, and performs the predetermined action synchronous with nipper framework 18.

Before and after the tongs plate axis 22 of pivotable be positioned at combing cylinder 15 rear and in the below of nipper framework 18.The first end of nipper framework actuating arm 23 is fixed to tongs plate axis 22, with pivotable overall with tongs plate axis 22.The rear end of nipper framework 18 is supported by the second end of nipper framework actuating arm 23 pivotally by back shaft 23a.Nipper framework 18 is configured to rock back and forth, and the end of bottom nipper 19 is separated close to detaching roller 16,17 with detaching roller 16,17 by the front and back pivotable (oscillating motion) of tongs plate axis 22.

The structure of the drive part of detaching roller 16,17 is described now with reference to Fig. 2 A and 2B.As shown in Figure 2 A, gear-box 24 along the longitudinal direction (left and right directions as observed in Fig. 2 A) be arranged on every one end of combing machine.The axle 25,26 of detaching roller 16,17 is arranged to parallel to each other between gear-box 24.The end of axle 25,26 to put in gear-box 24 and is rotatably supported by gear-box 24 via bearing (not shown).Gear 27,28 is respectively fixed to the end of axle 25,26, with axle 25,26 integral-rotation.Gear 27,28 is formed to have the identical number of teeth and identical diameter.

Two servo motors 29,30 are attached to each gear-box 24 to correspond respectively to axle 25,26.Servo motor 29,30 has motor drive shaft 29a, 30a of putting in gear-box 24 respectively.Driven wheel 31,32 is respectively fixed to motor drive shaft 29a, 30a with integral-rotation.Driven wheel 31,32 is formed to have the identical number of teeth and identical diameter with gear 27,28.Each gear-box 24 has the idle pulley 33 engaged with gear 27 and driven wheel 31 and the idle pulley 34 engaged with gear 28 and driven wheel 32 within it.Idle pulley 33,34 is formed to have the identical number of teeth and identical diameter.Namely, axle 25,26 drives via the gear train between motor drive shaft 29a, 30a and axle 25,26, and this gear train comprises idle pulley 33,34.Axle 25,26 rotates (rotary speed ratio is for 1:1) with rotary speed identical with motor drive shaft 29a, 30a respectively.Servo motor 29,30 is synchronously driven by controller (not shown), to rotate along forward direction or reverse direction.

The operation of the equipment of configuration as mentioned above will be described now.

Tongs plate axis 22 is waved (front and back pivotable) by main motor (not shown).According to the oscillating motion of tongs plate axis 22, bottom nipper 19 rocks back and forth, and top nipper 20a teeters.Therefore, lap L is kept and discharges between top nipper 20a and the end of bottom nipper 19.Because servo motor 29,30 provides driving force, detaching roller 16,17 is via gear train and axle 25,26 Integral rocking.The oscillating motion of detaching roller 16,17 is with the advance of bottom nipper 19 and return synchronous.Detaching roller 16,17 rotates along reverse direction when bottom nipper 19 advances and rotates along forward direction when bottom nipper 19 is return.

Axle 25 is driven by two servo motors 29 at two axial end places.Axle 26 is driven by two servo motors 30 at two axial end places.Servo motor 29 and servo motor 30, by driving synchronized with each other, make axle 25,26 by driving synchronized with each other.In other words, axle 25,26 is driven by four motors.Therefore, if use the motor of identical performance, then can to double the torque drive detaching roller 16,17 of the moment of torsion of prior art.Because axle 25,26 waves (front and back pivotable), so axle 25,26 has larger torsion with constant speed along the situation that a direction rotates than axle 25,26 with high speed (such as 300rpm).But, because the two ends of axle 25,26 are driven by servo motor 29 and servo motor 30 respectively, so the amount of torsion is 1/4th of axle 25,26 torsion that only driven structure produces in side.If the length of axle 25,26 is constant, then the resonant frequency of axle 25,26 driven structure at two ends is higher than the resonant frequency of each at one end driven structure of axle 25,26.Therefore, when the speed of combing machine increases, the rotary speed of each axle 25,26 will be different from resonant frequency.

The present embodiment has the following advantages.

(1) need high moment of torsion to drive detaching roller 16,17.Motor inertia is by expression formula J=MD ²represent, wherein M represents the quality of rotor, and D represents the overall diameter of rotor, and it is substantially equal with the overall diameter of motor.Therefore, in order to reduce the inertia of motor thus allow motor with High Rotation Speed, the overall diameter of motor is preferably manufactured to little as much as possible.In other words, motor torsional moment is multiplied by motor length to determine by motor overall diameter.Therefore, suppose that overall diameter is identical, motor length is longer, then motor torsional moment becomes larger.Such as, but in fact, owing to manufacturing reason, rotor clearance needs to be maintained at steady state value, and therefore the length of motor can not exceed a certain limit.According to prior art, the axle of two detaching rollers is driven by two motors.On the contrary, according to the present invention, the two ends of axle 25,26 are driven by motor 29,30 respectively, make axle 25,26 synchronous.In other words, two axles 25,26 of detaching roller 16,17 are driven by four motors.Therefore, can to double the torque drive detaching roller 16,17 of the moment of torsion of prior art.Therefore, when not increasing the size of independent servomotors 29,30, need the detaching roller 16,17 of high moment of torsion can drive with the speed higher than prior art.

(2) distance between the central axis of typically, pair of separated roller is as short as close to 40mm.On the other hand, in order to drive the axle of detaching roller, need there is high moment of torsion and with the motor of high speed operation.In this case, motor overall diameter than the axle of detaching roller central axis between distance large.Therefore, when the rotation of motor drive shaft to be delivered to the axle of detaching roller via gear, under the configuration that the gear being fixed to motor drive shaft engages with the direct geared of the axle being fixed to detaching roller, the rotary speed of motor drive shaft can not be embodied as 1:1 with the ratio of the rotary speed of the axle of detaching roller.But the axle 25,26 of the present embodiment drives via the gear train between motor drive shaft 29a, 30a of servo motor 29,30 and axle 25,26, and gear train comprises idle pulley 33,34.The driven wheel 31,32 being fixed to motor drive shaft 29a, 30a and the gear 27,28 being fixed to axle 25,26 have the identical number of teeth.Therefore, even if the distance between the central axis of the axle 25,26 of detaching roller 16,17 is as short as close to 40mm, and the overall diameter of servo motor 29,30 is greater than the distance between the axis of axle 25,26, but the rotary speed of motor drive shaft 29a, 30a can be embodied as 1:1 with the ratio of the rotary speed of axle 25,26.In addition, the size (diameter) of motor and rotary speed can be changed more neatly by changing the number of teeth of each gear in gear train.

(3) because the rotary speed of motor drive shaft 29a, 30a is set to 1:1 with the ratio of the rotary speed of axle 25,26, therefore, when the rotary speed of detaching roller 16,17 is changed by changing spinning conditions, the rotary speed of motor drive shaft 29a, 30a can be easily set.

(4) servo motor 29,30 is arranged such that motor drive shaft 29a, 30a are positioned at above axle 25,26, and the imaginary plane comprising the axis of motor drive shaft 29a, 30a and the axis of axle 25,26 is oriented to tilt relative to horizontal direction.Therefore, compared with being provided so that with servo motor 29,30 situation that this imaginary plane is typically oriented horizontally, the space of guaranteeing to hold servo motor 29,30 can be easier to.

The invention is not restricted to above-described embodiment, but such as can be embodied as follows.

Axle 25,26 can be coupled to each other via gear.Such as, as shown in Figure 3, connect gear 35 can be set to engage with gear 27,28.In this case, axle 25,26 can synchronous rotary, because axle 25,26 is coupled to each other via gear, even if the synchronization accuracy between servo motor 29,30 is relatively low.Connect the two ends place that gear 35 is preferably arranged on axle 25,26, but can only arrange at one end.

When axle 25,26 is coupled to each other via gear, can omit and driven wheel 31,32 meshed gears 27,28.Such as, can arrange discretely with gear 27,28 with the integrally rotated gear of axle 25,26, and can arrange with extra gears meshing connect gear.But, use gear 27,28 easier.

When gear 27,28 is not used and axle 25,26 is coupled to each other via gear, the gear for being coupled to each other by axle 25,26 is not arranged on the end of axle 25,26, but can be arranged on the middle part of axle 25,26.But, be easier to guarantee space for connecting gear by connecting end that gear is arranged on axle 25,26 and be conducive to maintenance.

The rotary speed of motor drive shaft 29a, 30a and axle 25,26 is than not needing for 1:1.Namely, the rotary speed of motor drive shaft 29a, 30a can than the rotary speed of axle 25,26 sooner or slower.

Gear train for the rotation of motor drive shaft 29a, 30a being delivered to axle 25,26 need not have idle pulley 33,34.Instead, the gear being fixed to motor drive shaft 29a, 30a can engage with the direct geared being fixed to axle 25,26.

Claims

1. a combing machine, comprise by the first detaching roller of front and back setting each other and the second detaching roller, the oscillating motion of described first detaching roller and the second detaching roller and nipper framework synchronously rotates along forward direction and reverse direction, the feature of described combing machine is, the first roller axle of described first detaching roller is driven by two first motors that can rotate along forward direction and reverse direction at two axial end places, second roller shaft of described second detaching roller is driven by two second motors that can rotate along forward direction and reverse direction at two axial end places, described first motor and described second motor are by driving synchronized with each other, first gear train is arranged between the motor drive shaft of each first motor and described first roller axle, second gear train is arranged between the motor drive shaft of described second motor and described second roller shaft, described first roller axle and each gear train by correspondence of described second roller shaft drive, described first gear train and described each of second gear train have idle pulley, and the first motor described in each and described second motor have the overall diameter larger than the distance between the central axis of described first roller axle and the central axis of described second roller shaft.

2. combing machine as claimed in claim 1, it is characterized in that, described first gear train and each of described second gear train comprise multiple gear, and the number of teeth of described gear is set so that corresponding motor drive shaft is 1: 1 with the rotary speed ratio of corresponding roller shaft.

3. combing machine as claimed in claim 1 or 2, it is characterized in that, described first roller axle and described second roller shaft are coupled to each other via gear.

4. combing machine as claimed in claim 3, is characterized in that, the gear that described first roller axle and described second roller shaft are coupled to each other is set to the gears meshing with the end being fixed to described first roller axle and described second roller shaft.