CN1690278A - Roller style angular runway for six-shuttle circular looms - Google Patents

Abstract

The invention provides a new device of roller track which can support six shuttles in high-speed circular motion, which is characterized in changing the relative sliding (drawing) friction between the track steel wires of swinging-arm high-speed four knitting machine and the slide slip of shuttle under plate into rolling friction of rolling bearing, to reduce the temperature rise of steel wires, track, and the shuttles effectively, to operate in improved speed for long time, to avoid plastic deformation of the organzine through the track, while reducing the abrasion of slide plate under shuttle and the rolling bearing. Another character is the improvement of radial accuracy of the track circumference formed by rolling bearing, which makes shuttles run stably and avoid the shake when shuttles in high speed. The speed of main shaft of knitting machine can be increased to 180 r/min, to effectively improve the weaving speed of packet lining to 2.73 m/min (13 plain wires).

Description

Small hexad shuttle circular loom roller bearing type circumference runway

The present invention relates to a kind of can the relative sliding friction of change be the roller bearing type new equipment of pivoting friction.The button door runway structure of high speed four-shuttle circular loom: be to mould casting in the plastics vertical bar in 8 * 8mm cross section, be inlaid in again in the upper and lower runway circumferential groove, thereby button door steel wire can not rotate by φ 4mm steel wire two.In addition, owing to be that to mould the circumference runway radial error that casting and setting-in constitute big, shuttle is walked to have slightly and is beated.High speed circular motion shuttle base plate draw runner is to slide against button door steel wire to transport, and the centrifugal force of steel wire carrying shuttle is also bigger.By the speed of mainshaft is 165 rev/mins of calculating, its linear velocity reaches 570 meters/minute, sliding friction for a long time is enough to make the steel wire temperature rise to reach about 75 °, organizine is to lead into against button door steel wire, the plastic crimping distortion takes place in organizine easily, in order to reduce sliding friction power, adorned two lubricating cup drip lubrication button door steel wires at soft strip, the result weaves out the bagging plane and always has the oil stain phenomenon.

Purpose of the present invention changes relative to sliding friction exactly to rotating friction, and it has not only reduced the temperature rise of button door roller bearing and runway, and can control the radial error of processing position, roller bearing hole high-precisionly, makes the shuttle operation quite steady, has eliminated the situation of beating.Invention is achieved in that the runway with machine-shaping, is installed on the outer omoplate of rolling disc by circle in it, is processed the position, hole of roller bearing on the rolling disc by very simple indexing means, the radial accuracy height of its position, hole, and the error of division is less demanding.

The concrete structure of invention is provided by following implementing process and accompanying drawing 1.

Fig. 1 is a profile of buckleing the door runway according to the roller bearing type circular loom that the present invention proposes.

This device is by roller bearing (1), and two bearings of two close-fitting (4) are contained in the bearing saddle bore of upper and lower runway (2) and (3).Putting tight fixed ring (5) on the interior ring end face of upper and lower two bearings,, screwing through nut (8) and to press on the bearing inner ring, outer race is being fixed in the bearing saddle bore by plain washer (6) and bullet pad (7).In the present hole of outer race tightening, above-mentioned all other parts all follow roller bearing to rotate at a high speed.Roller bearing the higher authorities grow the screw thread at nut position, screw out nut during for the replacing bearing, put down lasso, screw nut again and pull out roller bearing.Roller bearing upper end guard shield (12) is fastened on the soft strip circumferential plane by the M6 screw, guarantees operating personnel's safety.Upper and lower runway is fastening by omoplate on the locating shaft (9) and nut (10).The external diameter of paraphysis pipe (11) is kept apart adjacent two organizine than the big 3mm of roller bearing external diameter, has prevented the possibility of roller bearing coiling organizine.The circular space (13) of every roller bearing top is used for the oil storage lubricating bearings.An extra wide bearing only should respectively be adorned in roller bearing two, if respectively adorn two, because the inside and outside footpath of bearing nonconcentricity and ball and inner and outer ring gap different separately separately all can cause the roller bearing rotation dumb.Upper and lower runway changes the HT300 ironcasting into by original forged steel pieces, has both saved cost, is convenient to the fine finishining and the process velocity in runway top chock hole again.Simultaneously because the indeformable characteristic of cast iron is indeformable after the assembling.

About roller-type small hexad shuttle circular loom, also be palm bar type the first transaction of a day's business monofilament eye, but its cam structure and Japanese type four shuttle machine cam external diameter φ 1056 are similar big, so the speed of mainshaft in the time of 150 rev/mins, weaves also normally, should not raise speed again.In addition, because roller construction is determining: roller is to be sleeved on the outer race, so the column sleeve cylindrical is necessary 〉=φ 19mm, it is many to occupy on the runway circumference, can only reduce roller bar number and guarantee the organizine radical, the consequence that causes thus is very big, because every the moment of shuttle when the roller, have only slide carriage at the bottom of three roller bearing shuttles, shuttle is advanced very not steady.Roller bearing diameter phi 11mm of the present invention can increase the organizine radical, can have six roller bearings every slide carriage at the bottom of the shuttle again simultaneously, makes the shuttle walking more steady.

Claims (5)

1, a cover is by the shuttle runway device of formations such as the axis of rolling (1), following runway (2), soft strip (3), bearing (4), bearing tight fixed ring (5), runway fixed axis (9) and paraphysis pipe (11), it is characterized in that as the circumference runway, supply with shuttle and rotate at high speed, and can carry shuttle and produce bigger centrifugal force.Owing to be rolling friction, resistance is little, and the temperature rise of button door is not high.

2, press the device of claim 1 defined, it is characterized in that the axis of rolling (1) is installed in the bearing saddle bore of up and down runway (3) and (2) by bearing (4) and bearing tight fixed ring (5), constituted the circumference runway of supplying with slide carriage at the bottom of the shuttle, it is characterized in that radially machining accuracy height of circumference, make the shuttle walking quite steady.

3, by the soft strip (3) and the following runway (2) of claim 1 defined, it is characterized in that being processed into the inclined-plane, supply with four shuttle wheel runways that shuttle takes turns to locate usefulness up and down on the shuttle, can not fly shuttle when having guaranteed the shuttle high-speed cruising and beat the shuttle accident near the inner ring limit.The runway material changes cast iron into by forged steel up and down, is convenient to processing and indeformable.

4, by the fixed axis of runway up and down (9) of right 1 regulation, it is characterized in that two side millings are flat vertically, it is effective both can to serve as paraphysis, can have accurate axle to go up omoplate again and fix runway up and down.

5, the paraphysis pipe of stipulating by claim 1 (11), it is characterized in that according to every pair of palm fibre pipe the space between adjacent lays a paraphysis pipe, neither can occupy the position that organizine passes through, can keep apart contacting of footpath silk and the axis of rolling again, avoid roller bearing coiling organizine phenomenon.