CN201089831Y

CN201089831Y - Guide bar shogging mechanism

Info

Publication number: CN201089831Y
Application number: CNU2007200457050U
Authority: CN
Inventors: 王占洪
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-09-10
Filing date: 2007-09-10
Publication date: 2008-07-23
Anticipated expiration: 2017-09-10

Abstract

The utility model provides a guide bar shogging mechanism, comprising a servomotor and a movement device, wherein, the movement device consists of a main movement device and an auxiliary movement device, the auxiliary movement device is fixedly arranged on the outer side of the main movement device in parallel, the servomotor is arranged on a bearing support of the main movement device, a telescopic shaft of the auxiliary movement device is fixedly connected with a push rod shaft of the main movement shaft through a connecting bar. As the push rod shaft and a ball screw are arranged in the same axial line, one side of the push rod shaft is provided with the auxiliary movement device which is connected with the push rod shaft through the connecting rod so as to ensure that the torque force on the push rod shaft is eliminated by the telescopic shaft and is not outputted, the error of the transverse movement of the push rod shaft is reduced as the clearance between the ball screw and a ball nut is diminished, thereby improving the accuracy of the transverse movement and prolonging the service life; meanwhile, both the ball nut and the ball screw are arranged inside a sealed sleeve, thereby not only being favorable to guarantee the product quality and to maintenance and but also preventing dust from entering; moreover, the utility model has the advantages of low cost, simple and compact structure, etc.

Description

Guide bar shogging device

Technical field

The utility model relates to the guide bar shogging device on a kind of warp knitting machine, particularly warp knitting machine, belongs to field of textile machinery.

Background technology

The control device of the guide bar shogging device on original warp knitting machine is made up of floral disc or chain piece, this device have slow, the traversing distance of speed little, ring the changes on slow, change that colored cost is big, circulation line number is few, control sley bar number is few, transverse movement precision is poor (accumulated error is arranged), complex operation, take up room big and shortcoming such as noise is big.And the control device of the guide bar shogging on the existing warp knitting machine mainly is made up of servomotor, screw mandrel, nut and push rod, and nut sleeve is contained on the screw mandrel, Yi Bian push rod one end is fixedlyed connected with nut, the push rod other end is connected with sley bar.Nut can not rotate with screw mandrel because of being fixed on the push rod parallel with screw mandrel, but can be along the screw mandrel moving linearly, so, when servomotor control screw mandrel rotates, can make nut drive push rod and control the traversing of sley bar, overcome above-mentioned shortcomings such as the traversing distance of original tricot machine comb racking-movement device is little, but because this device is too simple, the feed screw nut is directly exposed, is unfavorable for maintaining; The moment of torsion that screw mandrel rotates also can have influence on the push rod moving linearly through nut, simultaneously not only because of push rod and screw mandrel disalignment but also the further adverse effect that strengthens this moment of torsion of meeting; The dust that is scattered has more quickened the wearing and tearing of screw mandrel and nut; And then make the back lash increase between screw mandrel and the nut and cause guide bar shogging inaccurate, make useful life shorter.

Summary of the invention

The purpose of this utility model is in order to solve the weak point of guide bar shogging control device on the above-mentioned existing warp knitting machine, provide a kind of reasonable in design, help maintaining enclosed construction, the screw mandrel moment of torsion do not leak, the guide bar shogging device of transverse movement precision height, long service life.

Guide bar shogging device of the present utility model comprises servomotor and locomotory apparatus, it is characterized in that locomotory apparatus is made up of main motion device and auxilliary locomotory apparatus, the auxilliary parallel outside that is packed in the main motion device of locomotory apparatus, servomotor is contained on the bearing block of main motion device, and auxilliary locomotorial telescopic shaft is fixedlyed connected with the push rod shaft of main motion device through connecting rod.

Described main motion device comprises sleeve, bearing block, ball screw, ball nut, push rod shaft and end cap, described bearing block and end cap are packed in the sleeve two ends respectively, place the ball-screw in the sleeve to go out and be contained on the bearing block through the leading screw shaft extension, ball nut is sleeved on the ball-screw, push rod shaft one end places in the sleeve and the cavity through being provided with is sleeved on the ball-screw and fixedlys connected with ball nut, and the push rod shaft other end stretches out end cap from the sleeve other end and is connected with sley bar.

Described auxilliary locomotory apparatus comprises telescopic shaft, supporting mass, linear bearing and connecting rod, described telescopic shaft one end is installed in the supporting mass parallel with the main motion device through linear bearing, the telescopic shaft other end is connected with connecting rod, and the connecting rod other end is connected with the push rod shaft of stretching out end cap of main motion device.

For the ease of assembling, can between two axis holes of connecting rod, offer the fastening seam of a connection, the connecting rod of fastening seam both sides is provided with the screw that fastening bolt is installed.

During installation, the sleeve of servomotor and main motion device is fixedly mounted on the frame, and the servomotor output shaft is connected with the lead screw shaft of main motion device, and the push rod shaft of main motion device is connected with sley bar.

During work, servomotor drives ball-screw and rotates, the ball nut drive push rod shaft that is sleeved on the ball-screw is done straight reciprocating motion, because of a side of push rod shaft is equipped with auxilliary locomotory apparatus and interconnects through connecting rod, torsion on the push rod shaft is offset by telescopic shaft and no longer output, be contained on same the axis because of push rod shaft and ball-screw again, when ball nut is moved on ball-screw stressed evenly, motion steadily helps reducing the wearing and tearing and the fit clearance of ball-screw and ball nut, reduced the error of the transverse movement that push rod shaft produces because of gap between ball-screw and the ball nut.Improve transverse movement precision and increase the service life; Simultaneously, ball nut and ball-screw are installed in the sleeve of sealing, have both helped guaranteeing that ball-screw and push rod shaft can help maintaining again and prevent that dust from entering on same axis, more help industrially producing the parts product of guaranteeing quality.It is low also to have cost, advantage such as simple in structure and compactness.

Description of drawings

Fig. 1 is a kind of structural representation of guide bar shogging device of the present utility model;

Fig. 2 is the locomotorial a kind of sectional structure schematic diagram among Fig. 1;

Fig. 3 is the structural representation of connecting rod.

The specific embodiment

Accompanying drawing is non-limiting to disclose two specific embodiments of the present utility model, and the utility model will be further described below in conjunction with accompanying drawing.

Referring to accompanying drawing, 1 among the figure is servomotor, the 2nd, and bearing block, the 3rd, ball-screw, the 4th, sleeve, the 5th, ball nut, the 6th, push rod shaft, the 7th, end cap, the 8th, connecting rod, the 9th, telescopic shaft, the 10th, linear bearing, the 11st, supporting mass, the 12nd, communicating slits, the 13rd, screw, the 14th, screw, the 15th, oil filler point, the 16th, tie rod holes.

Guide bar shogging device of the present utility model comprises servomotor 1 and locomotory apparatus, described locomotory apparatus is made up of main motion device and auxilliary locomotory apparatus, the auxilliary parallel outside that is packed in the main motion device of locomotory apparatus, servomotor 1 is contained on the bearing block 2 of main motion device, and auxilliary locomotorial telescopic shaft 9 is fixedlyed connected with the push rod shaft 6 of main motion device through connecting rod 8.

Described main motion device comprises sleeve 4, bearing block 2, ball screw 3, ball nut 5, push rod shaft 6 and end cap 7, described bearing block 2 and end cap 7 are packed in sleeve 4 two ends respectively, place the ball-screw 3 in the sleeve 4 to go out and be contained on the bearing block 2 through the leading screw shaft extension, ball nut 5 is sleeved on the ball-screw 3, push rod shaft 6 one ends place in the sleeve and the cavity through being provided with is sleeved on the ball-screw 3 and fixedlys connected with ball nut 5, and push rod shaft 6 other ends stretch out end cap 7 from the sleeve other end and are connected with sley bar.

Described auxilliary locomotory apparatus comprises telescopic shaft 9, supporting mass 11, linear bearing 10 and connecting rod 8, described telescopic shaft 9 one ends are installed in the supporting mass parallel with the main motion device 11 through linear bearing 10, telescopic shaft 9 other ends are connected with connecting rod 8, and connecting rod 8 other ends are connected with the push rod shaft of stretching out end cap 6 of main motion device.Connect in order to be more convenient for, the connector of telescopic shaft 9 can be made as flat head, and tie rod holes also is made as flat hole accordingly.

In order to be connected and fixed, offer a communicating slits 12 between two axis holes of described connecting rod 8, the connecting rod of communicating slits both sides is provided with the screw 13 that fastening bolt is installed.In order to make communicating slits 12 have enough tensioning abilities, the suitable width of communicating slits is 02-5mm.

During assembling, auxilliary locomotorial supporting mass 11 is fixed on the sleeve 4 of main motion device by screw 14, two axis holes with connecting rod 8 are enclosed within respectively on push rod shaft 6 and the telescopic shaft 9 again, tighten the bolt that is contained in the screw 13 again and can be easily will assist locomotory apparatus and the main motion device links together.

Also can on supporting mass 11 and sleeve 4, be provided with oil filler point 15, be convenient to regularly to add lubricating oil in use and be lubricated.

Claims

1. a guide bar shogging device comprises servomotor and locomotory apparatus, it is characterized in that locomotory apparatus is made up of main motion device and auxilliary locomotory apparatus, the auxilliary parallel outside that is packed in the main motion device of locomotory apparatus, servomotor is contained on the bearing block of main motion device, and auxilliary locomotorial telescopic shaft is fixedlyed connected with the push rod shaft of main motion device through connecting rod.

2. guide bar shogging device as claimed in claim 1, it is characterized in that the main motion device comprises sleeve, bearing block, ball screw, ball nut, push rod shaft and end cap, described bearing block and end cap are packed in the sleeve two ends respectively, place the ball-screw in the sleeve to go out and be contained on the bearing block through the leading screw shaft extension, ball nut is sleeved on the ball-screw, push rod shaft one end places in the sleeve and the cavity through being provided with is sleeved on the ball-screw and fixedlys connected with ball nut, and the push rod shaft other end stretches out end cap from the sleeve other end and is connected with sley bar.

3. guide bar shogging device as claimed in claim 1 or 2, it is characterized in that auxilliary locomotory apparatus comprises telescopic shaft, supporting mass, linear bearing and connecting rod, described telescopic shaft one end is installed in the supporting mass parallel with the main motion device through linear bearing, the telescopic shaft other end is connected with connecting rod, and the connecting rod other end is connected with the push rod shaft of stretching out end cap of main motion device.

4. guide bar shogging device as claimed in claim 3 is characterized in that offering a communicating slits between two axis holes of described connecting rod, and the connecting rod of communicating slits both sides is provided with the screw that fastening bolt is installed.