CN2234833Y

CN2234833Y - Wire-feeding mechanism for double-cone spring coiling machine

Info

Publication number: CN2234833Y
Application number: CN 95239844
Authority: CN
Inventors: 徐庆恩
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-05-31
Filing date: 1995-05-31
Publication date: 1996-09-11
Anticipated expiration: 2005-05-31

Abstract

The utility model provides a wire-feeding mechanism for a double-cone spring coiling machine, which is composed of a constant pressure wire-feeding part and a cam pressure relief part, wherein the constant pressure wire-feeding part is provided with a movable bearing seat (14) which is clamped in a gap of a wallboard (19), the movable bearing seat (14) is sheathed on an upper shaft (8) through a rolling bearing, a pressure spring (15) is arranged on the movable bearing seat, and a pressure regulating screw bolt (16) is arranged on the pressure spring. The cam pressure relief part is formed by using the way that a teleflex (3) is arranged on a lower shaft (5), two wire-feeding cams (11) (12) are arranged on the teleflex (3), and a shaft lifting roller (13) which is formed from the rolling bearing is arranged on the upper shaft (8). The utility model has the characteristics of simple structure, low cost, good manufacturability, high wire-feeding precision, long service life, etc.

Description

The wire feeder of biconial spring torsion machine

The utility model proposes the wire feeder that to control each spring steel wire length in a kind of bicone or the cylindrical springs torsion machine.

The wire feed of home and abroad torsion machine send before the wire feed rolls clamping steel wire that mostly adopts a pair of coupling to rotate is forced at present, and its control mode commonly used is referring to Fig. 1.It is by cam (01) control rocking arm (02), when the lug boss of cam lifts rocking arm one end, the upper wire feeding hose wheel (03) that is connected in the rocking arm other end just drops to lower wire feeding hose wheel (04) and locates, and compress and send before steel wire makes it with the rotation of wire feed rolls, when cam turns over lug boss, the upper wire feeding hose wheel breaks away from the lower wire feeding hose wheel, and steel wire halts.Also have following defective in practicality: 1, pressure is adjusted more complicated.2, for guaranteeing the reliable of wire feed, often adopt the measure of intensified pressure, cause complex structure, strengthen rotary resistance and power consumption, the wearing and tearing aggravation that wire feed rolls, roller, cam and axle, hole etc. are located.Pressure changes, and influences wire feed.3, change the new steel wire of a dish in the processing, wire feed also occurs now and then with regard to abnormal phenomenon, makes troubles for production and operation.4, mechanism's complexity, part is many, the requirement on machining accuracy height.

The purpose of this utility model is to overcome the defective of above-mentioned existence, proposes a kind of wire feeder of new biconial spring torsion machine.

Technical solution of the present utility model: persevering force feed silk and cam release two parts are formed, constant voltage wire-feeding part wherein is that the movable axis bearing 14 that is installed in wallboard 19 breach is arranged, movable axis bearing 14 is to be sleeved on the axle 8 by rolling bearing, stage clip 15 is housed on the movable axis bearing, regulator bolts 16 is housed on the stage clip; The cam release partly is that pivoted housing 3 is housed on the lower shaft 5, establishes two wire feed cams 11,12 on the pivoted housing 3, and dress is lifted shaft roller 13 by what rolling bearing constituted on the last axle 8.

The utility model can change in the spring specification, cause that wire-feeder resistance changes, or the steel wire size need not to adjust or adjust also very convenient when changing; When wire feed length need be adjusted, also can easily operate, because cancellation rocking arm and bearing so simplify the structure, have reduced manufacturing cost, good manufacturability, wire feed precision height, long service life.

Accompanying drawing 1 is the prior art constructions schematic diagram;

Accompanying drawing 2 is structural representations of the present utility model;

Accompanying drawing 3 is A-A cutaway views of Fig. 2.

Further provide structure of the present utility model and working condition below in conjunction with accompanying drawing:

Be installed with on front wallboard 19 and the rear wall plate 1 lower shaft 5 and on axle 8.

Gear 4 and lower wire feeding hose wheel 18 in the packing of lower shaft two ends, in the middle of the lower shaft pivoted housing 3 is housed, and is installing " pivoted housing driven gear " 6 at the pivoted housing left end with key, two wire feed cams 11 and 12 that right-hand member is then installing chopping cam 10 with key and is being attached thereto with bolt.Gear 7 and upper wire feeding hose wheel 17 in last axle two ends and the packing of lower shaft correspondence position, and " driving gear " 9 adorned with pivoted housing institute cogged 6 corresponding positions in its middle part; Adorning wire feed cam 11,12 corresponding positions with pivoted housing is adorning and is lifting shaft roller 13.Last axle is the biserial double row self aligning ball bearings with rear wall plate junction dress, and axle has a small amount of swing in the permission; Last axle then is by movable axis bearing 14 with being connected of front wallboard, and dress stage clip 15 has regulator bolts 16 on the bearing block 14 on the stage clip, and when last axle does not have other outside masterpiece sometimes, stage clip 15 will reach upward spool with the downward wire feed rolls of upper wire feeding hose wheel load by the movable axis bearing.Lift shaft roller 13 and do not contact with cam 11,12 this moment.When reduction gearing 2 driven gears 4, lower shaft and lower wire feeding hose wheel 18 clockwise rotate, do counterclockwise to rotate with axle 8 and upper wire feeding hose wheel 17 in 7 drives of gear 4 meshed gears.Be arranged in the wire feed rolls groove as existing steel wire, then two wire feed rolls do not contact because of accompanying steel wire, and the upper and lower wire feed rolls that is rotating just relies on the friction that power produced that is pressed on the steel wire to force to deliver to the spring shaped portion before the steel wire.When last axle rotates, gear 9 on it just promotes gear 6 and drives pivoted housings 3, chopping cam 10 and two wire feed cams 11,12 rotations, when the lug boss of cam forward to roller 13 contact positions after, to force roller to lift the upper wire feeding hose wheel of axle and end thereof, thereby stopped this wire feed process.The protuberance that thereupon cuts off cam 10 will cut off steel wire by other part, finish the processing of this spring.When wire feed rolls continued to forward to lug boss and breaks away from roller 13, stage clip 15 promptly pressed down the wire feed process of the next spring of upper wire feeding hose wheel beginning, when roller 13 lifts once more till ...Machine does not stop, and the wire feed process promptly continues always.When the spring specifications vary, when needing the change steel wire to send length to,, wire feed cam 11,12 is respectively changeed an angle as long as unclamp two bolts that cut off on the cam 10, at this moment the lug boss of two cams just can extend or shorten.By aforementioned process as can be known, when lug boss extended, it is long that last axle lifts the time, and wire feed length has just shortened, and after the adjustment, tightens two bolts again and gets final product.Complete when overlapping when cam 11,12, it is the shortest to lift a time, can obtain the maximum wire feed length of machine.

Claims

1, the wire feeder of biconial spring torsion machine, it is characterized in that persevering force feed silk and cam release two parts composition, constant voltage wire-feeding part wherein is that the movable axis bearing 14 that is installed in wallboard 19 breach is arranged, movable axis bearing 14 is to be sleeved on the axle 8 by rolling bearing, stage clip 15 is housed on the movable axis bearing, regulator bolts 16 is housed on the stage clip; The cam release partly is that pivoted housing 3 is housed on the lower shaft 5, establishes two wire feed cams 11,12 on the pivoted housing 3, and dress is lifted shaft roller 13 by what rolling bearing constituted on the last axle 8.