CN201762501U

CN201762501U - Yarn drawer for doffers

Info

Publication number: CN201762501U
Application number: CN201020298332XU
Authority: CN
Inventors: 刘光升
Original assignee: XIANGTAN HONGDA TEXTILE MACHINERY PLANT
Current assignee: XIANGTAN HONGDA TEXTILE MACHINERY PLANT
Priority date: 2010-08-20
Filing date: 2010-08-20
Publication date: 2011-03-16
Anticipated expiration: 2020-08-20

Abstract

The utility model discloses a yarn drawer for doffers, which comprises a basal disk and movable yarn-drawing plates, each movable yarn-drawing plate comprises a gripper and a rocker, the gripper is movably articulated with one end of the rocker, a tension spring is arranged at the joint between the gripper and the rocker, the rocker is rotatably articulated with the basal disk through an articulating part, a tension spring is arranged at the joint between the rocker and the basal disk, and the other end of the rocker is contacted with a cam fixed on a central shaft. The utility model has the advantages of reasonable design and low manufacture cost, and is simple and convenient to process, and solves the technical problem that various doffers cannot be widely popularized because spindles and yarns can be injured when the yarns are drawn.

Description

A kind of yarn feeding device that pulls out that is used for doffer

Technical field

The utility model belongs to textile machine, specifically be a kind of be applicable to doffer pull out yarn feeding device.

Background technology

At present in China, doffer is to be widely used in the fine spining machine that spins, weave Pirn winder and twisting machine etc. and substitute the special equipment that manually doffs, this doffer mainly utilizes and pulls out the yarn dish and doff, its structure comprises that a circle that has several similar semi arch teeth groove pulls out the yarn basal disc and be fixed on clamper on the basal disc, pull out yarn basal disc and orbital direction an inclination angle is arranged, when frame when track moves forward, pull out the yarn basal disc and the fine spining machine spindle is meshing, spool squeezes to be driven clamper and compresses into teeth groove, and the rotation of yarn basal disc is pulled out in drive, because certain inclination angle is arranged, the yarn basal disc band that pulls out of rotation spool and is extracted spindle, when spool withdraws from teeth groove, will be held the spool that device is pressed in the teeth groove by the yarn device and pull out.This shortcoming of pulling out that yarn feeding device exists is, cop is pushed in getting into and pull out the teeth groove process repeatedly, damages cop easily and causes broken end to increase, influence yarn qualities, simultaneously, when pulling out yarn, spindle is produced a radial load, cause the spindle blade bending easily, the damage spindle.

Summary of the invention

Be to solve the existing in prior technology problem, the utility model provide a kind of in pulling out the yarn process clamper can copy the action of staff realize unclamping-clamping-keep clamping-unclamp the yarn feeding device that pulls out of working cycles.

The technical scheme that the utility model adopted is: a kind of yarn feeding device that pulls out that is used for doffer, comprise the circular base plate that has several similar semi arch teeth groove, basal disc is positioned on the bearing block, rotate around centre bearing, circumferentially be evenly distributed with the corresponding activity of teeth groove at basal disc and pull out yarn sheet, described activity is pulled out yarn sheet and is comprised clamper and fork, one end of clamper and fork is movably hinged, junction at clamper and fork is provided with extension spring, it is hinged that fork and basal disc form rotation by articulated elements, junction at fork and basal disc is provided with torsion spring, and the other end of fork contacts with cam on being fixed on central shaft.

Described a kind of yarn feeding device that pulls out that is used for doffer, its end that is further characterized in that fork contacts with cam is provided with roller, to reduce the friction between fork and cam.

Advantage of the present utility model and good effect are: 1, the utility model is by utilizing the effect of cam, fork and reduction torsion spring, make clamper can copy the action of staff, realization unclamps-clamps-keep clamping-unclamp working cycles, thereby avoided causing Yarn break, improved yarn qualities because of clamper pushes cop; 2, clamper and fork adopt and are movably hinged, and, further reduced the pressure of clamper, simultaneously to cop by the clamping of extension spring realization to cop, clamper is to the impact of spindle when having reduced striker, thereby bolster displacement, spindle blade bending can not occur causing because of doffing; 3, the utility model is reasonable in design, processes easyly, and cost of manufacture is low.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the vertical view of Fig. 1.

The specific embodiment

Below in conjunction with the drawings and specific embodiments the utility model is further specified.

As Fig. 1, shown in Figure 2, the utility model is a kind of yarn feeding device that pulls out that is used for doffer, comprise the circular base plate 1 that has several similar semi arch teeth groove, basal disc 1 is positioned on the bearing block 10, rotate around centre bearing 7, circumferentially be evenly distributed with the corresponding activity of teeth groove at basal disc 1 and pull out yarn sheet, described activity is pulled out yarn sheet and is comprised clamper 2 and fork 3, clamper 2 is movably hinged with an end of fork 3, junction at clamper 2 and fork 3 is provided with extension spring 8, fork 3 rotates hinged with basal disc 1 by articulated elements 6 formation, junction at fork 3 and basal disc 1 is provided with torsion spring 9, the other end of fork 3 contacts with cam 5 on being fixed on central shaft, and an end that contacts with cam 5 at fork 3 is provided with roller 4.

This yarn process of pulling out of pulling out yarn feeding device is achieved in that cop is before entering the basal disc teeth groove, the roller of fork is positioned at the recess of cam, the activity that is made of clamper and fork is pulled out yarn sheet and is in the nature straight configuration, rotation along with basal disc, cop enters tooth slot position, simultaneously, the roller of fork moves to the bump position of cam, projection promotion activity is pulled out yarn sheet and is turned an angle around pin joint, and clamp cop downwards, because clamper and fork adopt and be movably hinged, during the effect clamping spindle of clamper by extension spring, pressure obtains cushioning, owing to pull out the yarn basal disc and there is certain inclination angle in the doffer direction of advance, the basal disc band of rotation spindle and is extracted spindle, arrives when unloading the yarn station, and the runner of fork moves to the recess of cam once more, fork resets under the torsion spring effect, drive clamper and outwards open, spindle withdraws from from teeth groove, finishes the one action circulation.

Claims

1. yarn feeding device that pulls out that is used for doffer, comprise the circular base plate (1) that has several similar semi arch teeth groove, basal disc (1) is positioned on the bearing block (10), rotate around centre bearing (7), circumferentially be evenly distributed with the corresponding activity of teeth groove at basal disc (1) and pull out yarn sheet, it is characterized in that: described activity is pulled out yarn sheet and is comprised clamper (2) and fork (3), clamper (2) is movably hinged with an end of fork (3), junction at clamper (2) and fork (3) is provided with extension spring (8), fork (3) rotates hinged with basal disc (1) by articulated elements (6) formation, junction at fork (3) and basal disc (1) is provided with torsion spring (9), and the other end of fork (3) contacts with cam (5) on being fixed on central shaft.

2. according to claim 1 described a kind of yarn feeding device that pulls out that is used for doffer, it is characterized in that: an end that contacts with cam (5) at fork (3) is provided with roller (4).