CN1003527B

CN1003527B - Spindle-driving arrangement in mule

Info

Publication number: CN1003527B
Application number: CN87106866.4A
Authority: CN
Inventors: 堀田; 京市
Original assignee: Kyowa Machinery Co Ltd
Current assignee: Kyowa Machinery Co Ltd
Priority date: 1986-10-14
Filing date: 1987-10-12
Publication date: 1989-03-08
Also published as: KR880005300A; JPS6364782U; CN87106866A

Abstract

To enable high-speed printing over a long useful life time and make it possible to cope with an increase in the number of sheets simultaneously copied, by using a sintered high speed tool steel as a base material for a wore, and firmly attaching a sintered hard alloy to the tip of a printing part of the wire. When a small diameter wire of a sintered high speed tool steel is quench hardened from 1,100-1,260 deg.C and then tempered, an arbitrary hardness of Hv 800-1,000 can be obtained, enabling a wire to endure abrasion due to frictional contact thereof with a guide member. A sintered hard alloy 2 is firmly attached to the tip of a printing part of the wire of the sintered high speed tool steel 1. Brazing can be performed in air by light beam welding, and may be performed also by laser beam welding, high-frequency welding, torch heating or the like. When brazing is performed in an inert atmosphere, a stronger and stabler brazed part can be obtained. The print wire thus obtained is capable of being used for high-speed printing and enduring friction with the guide member.

Description

Spindle-driving in the seflactor

The present invention relates to the spindle-driving in the weaving knitting wool usefulness seflactor.

Traditional seflactor, arrive shown in Figure 11 as Fig. 9, comprise a driving mechanism, the wherein rotation of motor 100, be to be delivered to main shaft 102 by belt pulley 101, main shaft 102 is delivered to rotational motion a small diameter pulleys 104 or a major diameter belt pulley 105 with one-way clutch again, and two belt pulleys of size are by friction clutch 103 optional one of them drive.Endless-belt 120 is around small diameter pulleys 104, major diameter belt pulley 105 and numerous mute pulleies 106,107,108,110 and 111 move in the approach of turning everywhere of a complexity, and drive a clutch pulley 109 that has differential gear train, rotatablely move to provide.The rotation of clutch pulley 109 passes among the spindle 117(figure by twist thread change gear case 112 and a series of belt pulley and only to illustrate one).The output speed of clutch pulley 109 and input speed thereof are then changed by the small diameter pulleys 104 or the transmission of major diameter belt pulley 105.Spindle 117 just can alternate its rotating speed to twist thread and to recoil like this.

In such spindle driving mechanism, the strip winding condition of belt 120 is too complicated, and it comprises many tiltedly scratch part and tortuous reversing, and belt 120 is also oversize simultaneously, so belt 120 just was worn in not long service time.In addition, when changing the speed of spindle 117, the Tension Difference of belt 120 on tensioning one side and loose one side can cause the unstable transmission to spindle 117.Also have, when spindle 117 changed speed, the operation of conversion belt pulley was very heavy.

The objective of the invention is for a kind of spindle-driving of seflactor is provided, it can eliminate above-mentioned shortcoming, and simplifies the transmission mechanism that drives spindle.

Spindle-driving in the seflactor that this invention is provided comprises a transmission mechanism that more is applicable to the spindle rotation.This spindle-driving comprises a control motor that is contained in the transmission system, and when changing and spinning the spindle rotation state that adapts, the control motor is controlled rotating speed according to the signal of spindle velocity variations.The clutch device of band differential gear train is between control motor and spindle, and it is suitable for being used for transmitting or cutting off the controlled rotation of control driven by motor spindle.

Like this, this of this invention device just can be reached by the output speed that changes the control motor and change and the spindle rotating speed that adapts and the purpose of rotation direction of spinning.Above-mentioned control department of electrical engineering is contained in the transmission mechanism that drives spindle rotation.

In accessory rights requirement and the description of the drawings, this invention will be clearer.

Brief description of drawings: Fig. 1 is the plane of the first embodiment major part of this invention;

Fig. 2 is the side view of Fig. 1;

The clutch pulley vertical cross-section diagram of Fig. 3 for amplifying;

Fig. 4 is the diagram of spindle velocity variations;

Fig. 5 is the plane of the second embodiment major part of this invention;

Fig. 6 is the side view of Fig. 5;

Fig. 7 is the plane of the 3rd embodiment major part of this invention;

Fig. 8 is the side view of Fig. 7;

Fig. 9 is the side view of traditional spindle-driving;

Figure 10 is the major part plane of Fig. 9;

Figure 11 is along the view of the X-X line direction of arrow among Fig. 9.

Fig. 1 is to first embodiment that Figure 4 shows that this invention.In seflactor, only illustrate one among a large amount of spindle 12(figure) all be contained in the mule carriage 14, and rotatable.Mule carriage 14 can be borrowed mule carriage wheel 16 in front and back to do laterally with respect to fixed frame 18 and be moved back and forth.

Transmission mechanism D is used for making spindle 12 to rotate.It comprises control motor 1, and this motor 1 comprises that power source all is contained near the frame 18.By the requirement that spins, it is used for changing the rotating speed of spindle 12.The output speed of control motor 1 can as DC control and change-over switch control, be controlled according to the signal of spindle velocity variations automatically by the electronic control mode (not shown).

Endless-belt 17 was scratched the belt pulley 2 on the axle that is contained in control motor 1, last lower tumbler 4,3, guide wheel 20, clutch pulley 6 and guide wheel 19.Guide wheel 4 and 3 wherein, be contained in a near end of the frame 18 the control motor 1 by support 5, guide wheel 20 rotatably is supported in the mule carriage 14 by support 15, clutch pulley 6 has differential gear train and rotatably is supported in the mule carriage 14, and guide wheel 19 rotatably is contained in the other end of frame 18 and can laterally moves.When belt 17 operations, the output of control motor 1 is rotated and is just passed to clutch pulley 6, and the rotation of clutch pulley 6 is again by change gear case 7 and belt pulley 8 and 9 to 10 and 11 of twisting thread, to drive the spindle band of spindle, like this, each spindle 12 just is driven to rotate.

Therefore, twist thread and the recoil process in, the rotating speed of spindle 12 by clutch pulley 6 and control motor 1 control.Control procedure is by the district T that twists thread as shown in the spindle velocity variations diagram of Fig. 4 ₁And recoil and distinguish T ₂Calculate.Along with the interval of time T, changing spindle speed R length by length.This variation is illustrated with reference to Fig. 3.

In clutch pulley 6, along with cone friction clutch 21 holdback clutchs wheel 22a, clutch wheel 22a throws off brake block 23, and making clutch wheel 24a throw off brake block 25a further, a series of planetary gear 26 will dally, therefore, a series of row amount gears 26 rotate not transmission central gear 20b, so although pulley body 6a is also rotating, it is motionless that Pulley shaft 20a still keeps.

When the startup signal of twisting thread occurs, conical friction clutch 21 is meshed with clutch wheel 22a, the gear 22b differential that links to each other with clutch wheel 22a rotates, and makes Pulley shaft 20a and conical friction clutch 21 together slowly running, thereby drives spindle 12 with low speed R ₁Rotate.After this state keeps one to give the interval of fixing time, conical friction clutch 21 and clutch wheel 22a throw off mutually, clutch wheel 22a is braked brake shoe 23a and brakes, thereby the rotation of a series of planetary gears 26 is passed to central gear 20b, make Pulley shaft 20a rotate, thereby the rotating speed of spindle 12 also become middling speed R with middling speed ₂After this state keeps one to give the interval of fixing time, spindle rotation speed change signal sends, and the output speed of controlling motor 1 is become at a high speed by low speed, and the rotating speed of pulley body 6a is quickened, make Pulley shaft 20a with high speed rotating, thereby the rotating speed of spindle 12 also is converted into high speed R ₃After this, this state kept one give fix time at interval after, the rotating speed of control motor 1 becomes low speed.At this moment, conical friction clutch 21 is thrown off mutually with clutch wheel 22a, and clutch wheel 22a and brake block 23a throw off mutually, and brake block 25a brakes braked wheel 24a.Subsequently, the rotation of a series of planetary gears 26 is passed to central gear 20b, makes it produce differential along counterturn and rotates, thereby cause Pulley shaft 20a to reversely rotate at low speed, and spindle 12 turns to and also changes and with low speed R ₄Rotate, realize the recoil that spins.At this moment, spin under the effect of tension force and to recoil a segment length and make simple sub-tensioning.In the process of tensioning that spins, Pulley shaft 20a is disengaged braking and is rotated by drive power source, and this power source is not shown in the drawings.

The transmission and the implementation process of said apparatus are described as follows.In this device, the transmission mechanism D that is used for driving spindle 12 comprises clutch pulley 6 that has differential gear train and the control motor 1 that is used for controlling according to spindle rapid change signal rotating speed, changes thereby make the rotating speed of spindle and turn to woolspinning process.

Adopt the result of this device, the transmission mechanism D that drives commentaries on classics spindle 12 is simplified.Simultaneously, shortened and to have controlled the length that motor 1 rotates the belt 17 that is passed to clutch pulley 6, and then tension variation amplitude and local Tension Difference that belt 17 is produced when speed change are dwindled.Therefore, the rotating speed of spindle 12 is able to accurately stably control.In addition, owing to do not twist, can prevent the wearing and tearing of belt 17 effectively around belt.

With reference to Fig. 5 and shown in Figure 6, second embodiment in this invention, control motor 1A is installed on the mule carriage 14A, and belt 17A is on motor pulley 2A and clutch pulley 6A.But in transmission mechanism D, do not adopt the mute pulley 3,4,19 and 20 that on embodiment 1, is adopted, thereby make the length of belt 17A reduce to minimum.

Fig. 7 and Figure 8 shows that the third embodiment of the present invention.Its control motor 1B is loaded on the mule carriage 14B, and the change gear case 7B that twists thread is directly connected on the motor shaft of control motor 1B, among the transmission mechanism D that control spindle 12B rotates, and no-clutch belt pulley and belt.The rotating speed of control motor 1B and turning to according to spindle rapid change signal changes, so that drive spindle 12B with slow-speed of revolution R ₁, medium speed R ₂, high rotating speed R ₂With recoil slow-speed of revolution R ₄Rotate continuously.

Every other effect as for second and third embodiment is almost the same with first embodiment, and therefore narration is omitted.

As mentioned above, the transmission mechanism D that drives spindle is equipped with the control motor of controlling rotating speed according to spindle rapid change signal, and changes the rotating speed of spindle according to woolspinning process.Therefore, the transmission mechanism of control spindle rotation can obtain simplifying.Simultaneously, the spindle rotating speed is able to accurately stably control.

Though this invention is narrated by several most preferred embodiments shown in the drawings, should be clear and definite, this specific device can be done various modifications and variations, and these versions deviate from the not described category of the format appended invention claim of literary composition.

Claims

1, a kind of spindle-driving of seflactor, it comprises a differential gear mechanism, and has clutch and transmission component to the controlled transmission of spindle transmission or cut-out control motor, it is characterized in that; This drive unit comprises that also is installed in the control motor that being used in the transmission mechanism finished the controlled rotation that produces according to spindle rotation speed change signal, and above-mentioned clutch is installed between control motor and the spindle.