CN1284581A

CN1284581A - Warp Knitting machine

Info

Publication number: CN1284581A
Application number: CN00124276A
Authority: CN
Inventors: H·J·赫尼; K·米斯塔
Original assignee: Karl Mayer Textilmaschinenfabrik GmbH
Current assignee: Karl Mayer Textilmaschinenfabrik GmbH
Priority date: 1999-08-17
Filing date: 2000-08-17
Publication date: 2001-02-21
Anticipated expiration: 2020-08-17
Also published as: JP3443079B2; JP2001073264A; EP1077278B1; KR20010049797A; EP1077278A1; KR100363950B1; CN1145722C; DE19938871C1; DE50002153D1

Abstract

A warp knitting machines has a guide bar which can be shifted along a given path, and in the both ends of which there is a motor(4, 7). A control unit (18) sets the first motor (4 or 7) to shift the guide bar in one racking direction and the other motor to move the guide bar in the opposite direction. The motors apply the directional tension forces (S1,S2) on the bar movement lines. The bar is a strip (1), and allows high speed and/or small pull.

Description

Warp knitting machine

The present invention relates to a kind of warp knitting machine, it has the first controllable motor at least one sley bar that moves predetermined approach, the end that is held in sley bar, and the restoring device on other end that is held in sley bar.

In a known this warp knitting machine (DE 29 26 018 C2), motor has a belt, and its length can shorten by the pressurizing member mobile perpendicular to belt, and its adopts spring as restoring device.This structure needs bigger pulling force for the displacement of sley bar, and needs a very firm frame when particularly being provided with many this sley bars in warp knitting machine.Its operating rate also is restricted in addition.

Know also from DE 30 06 636 A1 that in addition the sley bar of warp knitting machine is to make a folding band, and makes it hard by moulding.

Task of the present invention is to provide a kind of foregoing warp knitting machine, and it can carry out work with less pulling force, and is applicable to high operating rate.

According to the present invention, this task solves like this, it adopts one second controllable motor to be used as restoring device, and make the dilatory sley bar of first motor move predetermined approach by a direction of displacement by a control device, the then dilatory sley bar of second motor moves predetermined approach by another direction of displacement, and another motor applies a reciprocal tension force on sley bar at every turn.

Mainly having a bigger power in this structure is used for quickening.Therefore motor not only will provide in a moving direction and quicken required pulling force before, but also will overcome the identical retraction force of an order of magnitude.And locomotivity only need overcome the tension force that can keep very little now.Therefore, for acceleration rapidly provides obviously very too much pulling force, thereby provide higher operating rate.For this reason, can also the lower frame of stability in use, because the power that up to the present force rate that is taken place in the work that belt moves is kept is much smaller.

It is very favorable that sley bar is made belt.The quality of sley bar is minimum, and therefore will reach once moving required acceleration rapidly only needs very little pulling force enough.The tension force that is kept also can be less in addition, because it only needs to keep the elongation of pliable and tough band in the ordinary course of things.

Control device is provided with a proportional and integral controller and is used for controlling first and second motor and adjuster that is worked by proportional parts and is used for each another motor of control, and it is favourable doing like this.Therefore proportional and integral controller is as main system, and the adjuster that is worked by proportional parts is as slave system.Can constitute the combination of two Duty of Electric Motors by the method.According to the method, tension force can be all the time less than pulling force.This all is effective to two moving directions.

Recommendablely be, control device has an adjuster, and it provides as absolute value the actual value and the setting value of sley bar position.Because each being equipped with a suitable absolute value here matches, so warp knitting machine can be from the operation of any position.Can save a zero-bit like this regulates.

Interestingly in this relation be that the scale of sley bar position actual value indicator is mounted on the belt.Belt has an even curface, so scale can be contained in above it easily.

Also have other advantages, promptly the total displacement approach of sley bar is 150mm at least.In practicality, often reach 180 or 200mm.Big like this total displacement approach is impossible in the past, because retraction spring does not allow so big length variations.But can within big total displacement approach, move the actual shift scope of for example 16mm and need not machine is changed now.

What have special advantage is that motor adopts linear motor.They can be directly match and do not need reversing arrangement with the elongation of belt.

If without linear motor, also can adopt turning motor.It for example can rotate a disk.On it, be provided with a drag rope and guide the belt end.

Also arrange like this in an embodiment who recommends, promptly carry a thread-guide element on the belt, it can be placed in and form on the needed position of style.

In a same favourable another program, have many perforates that are used for guide on the belt.

The present invention is described in detail according to the preferred embodiment shown in the accompanying drawings below, wherein:

Fig. 1 schematically represents the sley bar by a belt shape of these people use, and affiliated control device,

Fig. 2 represents another embodiment of belt,

Fig. 3 represents another embodiment of belt,

Expression one pliable and toughly is with 1 in Fig. 1, and it can be as the sley bar of warp knitting machine.The termination 2 of belt 1 is connected with the rotor 3 of a straight line motor 4, and 5 of the terminations of belt 1 are connected with the rotor 6 of a straight line motor 7.These two motor 4 and 7 only apply a pulling force to belt 1.If belt 1 will be when shifting left, motor 4 is the dilatory left corresponding displacement approach of belt, and motor 7 is controlled so simultaneously, makes it apply a less tension force, so that make belt keep stretching.When if belt 1 is wanted right shift, then motor 7 applies the required pulling force of a displacement, and motor 4 then produces one and is used for keeping the tension force of belt 1 stretching.

In order on two motor 4 and 7 are aspect described, to control, be provided with a control device 8, it determines the signal of the power of motor 4 by lead 9, and determines the signal of the power of motor 7 by lead 10.Control device 8 has a proportional and integral controller 11, and it is imported the setting value of a shift movement by importing 12 from a program transmitter 13 in the mode of absolute value.Program transmitter 13 has connection ground to carry out work with the speed of mainshaft of warp knitting machine.In addition, proportional and integral controller 11 is imported the actual value of the position of belt 1 by one second input 14.For this purpose, a scale 15 is installed on the belt 1, it by a read head 16 with optics or other modes scan.By first output 17 the power of electric motor data by the direction of displacement index are transported to a conversion equipment 18.By 19 pairs one subordinate adjuster 20 generation effects of second output.The proportional parts of its proportion of utilization integral controller 11, and in output 21 to conversion equipment 18 carry one with the corresponding signal of power of electric motor that produces a useful small tension receiving coil.Conversion equipment 18 is according to knowing just by the symbol of 17 input signals of lead needs to which direction are shifted.

Therefore, when shift movement left, motor 4 produces a pulling force P1, and motor 7 produces an obvious less tension force S1, as shown in the arrow among Fig. 1.In contrast, when needs produced to the right a displacement, motor 7 produced a pulling force P2, and motor 4 then produces a tension force S2, as shown in the dotted arrow among Fig. 1.

In embodiment, be provided with a belt 22 that thread-guide element 23 is housed on it according to Fig. 2.It also can adopt other knitting implements, for example pusher jack.Here adopt turning

motor

24 and 25 to replace linear motor 4 and 5.They are expression roughly only, is used for driving a rope capstan winch.Also expression in addition, belt 22 can move on the bolt 27 that is fixed on the bearing 28 by cylinder seat 26.

In the embodiment according to Fig. 3, belt 29 is connected with a turning motor 30 at its end, and is connected with a turning motor 31 at the other end, and belt is provided with many perforates 32 and is used for guide.Also be provided with some guide grooves 33 in addition, respectively hold a support roller 34 by them.

Claims

1. warp knitting machine, has the sley bar that at least one can move predetermined approach, a first controllable motor that is contained in sley bar one end, with a restoring device that is contained on the sley bar other end, it is characterized in that: restoring device adopts one second controllable motor, by a control device (18), and first motor (4,24,30 or 7,25,31) approach that sley bar is scheduled to by a direction of displacement (pulling force P1 or P2) traction, and second motor (7,25,31 or 4,24,30) approach that sley bar is scheduled to by another direction of displacement (pulling force P2 or P1) traction, and another motor applies the opposite tension force of a direction (S1 or S2) on sley bar at every turn.

2. according to the warp knitting machine of claim 1, it is characterized in that: sley bar is to be designed to a belt (1,22,29).

3. according to the warp knitting machine of claim 1 or 2, it is characterized in that: control device (18) has that a proportional and integral controller (11) is used for controlling first or second motor (4 or 7) and an adjuster that is worked by a proportional parts (20) is used for controlling another each motor (7 or 4).

4. according to the warp knitting machine one of in the claim 1～3, it is characterized in that: control device (18) has an adjuster (11), and wherein the actual value of sley bar position and setting value provide as absolute value.

5. according to the warp knitting machine of claim 4, it is characterized in that: the scale of the transmitter of the actual value of sley bar position (15) is installed on the belt (1).

6. according to the warp knitting machine one of in the claim 1～5, it is characterized in that: the total displacement approach of sley bar is at least 150mm.

7. according to the warp knitting machine one of in the claim 1～6, it is characterized in that: motor (4,7) is a linear motor.

8. according to the warp knitting machine one of in the claim 1～7, it is characterized in that: motor (24,25; 30,31) be turning motor.

9. according to the warp knitting machine one of in the claim 2～8, it is characterized in that: be loaded with thread-guide element (23) on the belt (22).

10. according to the warp knitting machine one of in the claim 2～9, it is characterized in that: belt (29) is provided with the perforate (32) that guide is used.