CN2274196Y

CN2274196Y - Alternate setting-up-yarn type weft accumulator

Info

Publication number: CN2274196Y
Application number: CN 96236209
Authority: CN
Inventors: 叶明�; 赵智凯; 杨京颐; 范卫武; 何科奇
Original assignee: DONGFANG INSTRUMENT FACTORY
Current assignee: DONGFANG INSTRUMENT FACTORY
Priority date: 1996-07-31
Filing date: 1996-07-31
Publication date: 1998-02-11
Anticipated expiration: 2006-07-31

Abstract

The utility model relates to an alternate setting-up-yarn type weft storage device, which is composed of a weft yarn input tensioner, a controlled electrical motor, a yarn winding disc, a yarn winding drum, a sensor used for detecting the predicted winding quantity of weft yarn of the yarn winding drum, a dashpot used for stabilifying the outputted weft yarn, a sheet-shaped yarn gripper and a tension rehabilitation device. The utility model is characterized in that a central axis of the yarn winding drum forms a composite deflection angle alpha with the central axis of the controlled electrical motor. The weft yarn is introduced by the input tensioner, and the yarn winding disc is driven to wind the weft yarn on the yarn winding drum by the controlled electrical motor. The utility model has the advantages that the weft yarn is uniformly arranged on the yarn winding drum so that the quality of the knitted cloth is obviously improved.

Description

Interval setting-up-yarn type weft accumulator

The utility model relates to the weft accumulator in the weaving electromechanical equipment, particularly shuttleless loom.

Existing weft accumulator is generally close around row's yarn around the yarn form, from causing several loop yarns around coming off simultaneously easily, cause that fabric quality is bad like this when the yarn drum is gone up wefting insertion, and this phenomenon is particularly evident in high-grade fabric.The patent application " a kind of weft accumulator of controlled by single chip microprocessor " (notification number 2036184) that Chinese patent literature is announced and " a kind of drum formula weft accumulator " (application number 87208664), its purpose is: the broken yarn phenomenon that reduces weft yarn.

The purpose of this utility model is: utilize eccentric compound motion make weft yarn in the shape of a spiral shape arrange at interval around on yarn drum, during wefting insertion, weft yarn one encloses from taking off around the yarn drum, passes through damper, provide the weft yarn of tension stability to main frame, thereby can significantly improve the quality of the face of weaving cotton cloth.

The realization the technical solution of the utility model is as follows: it comprises weft yarn input tensioner 1, electric-controlled box 2 and the controlled motor 3 and the cone type magnetic suspension mechanism 4 that controlled by electric-controlled box 2,

And by controlled motor drive around yarn dish 5 with around yarn drum 6,

And be used to detect around the yarn drum and go up weft yarn in advance around the sensor 7 of amount,

And be used for stable damper 8, sheet yarn gripper 9 and tension force restoring device 11 compositions of exporting weft yarn, the three is placed in successively after yarn drum 6,

Its architectural feature is:

With respect to the axis of controlled motor 3 a combined deflection angle α is arranged around the axis of yarn drum 6.

Characteristics of the present utility model are:

1, because the axis that rouses around yarn has a combined deflection angle with respect to the controlled motor axis, so when motor 3 drive around the yarn drum around the tongue reciprocating motion time, make around yarn drum around tongue have simultaneously about one to the back rotation of coming of upward and downward, so just, can drive around the bulging yarn of going up of yarn and move, and make the s that keeps at a distance between the yarn, the radian value of this s spacing and above-mentioned angle of deflection is corresponding.

2, owing to increased the cone type magnetic suspension mechanism and, so not only can make yarn be convenient to input to, can play the effect of stablizing yarn simultaneously around the yarn drum around the yarn dish.

The utility model is described in further detail below in conjunction with accompanying drawing:

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

Fig. 2 is that controlled motor drives the mechanical schematic diagram that moves around yarn drum 6 in the utility model,

Fig. 3 is the structural representation of the utility model infrared sensor,

Fig. 4 is the structural representation of the utility model Hall element,

At first with weft yarn on the pin of entrying, the pin of entrying passes the centre bore of input tensioner 1 and controlled motor 3, behind magnetic suspension mechanism 4, pass around yarn dish 5, after connecting power supply, under electric-controlled box control, controlled motor 3 rotation, with weft yarn in the shape of a spiral shape around arranging yarn at interval on the yarn drum, by sensor 7 controls in advance around amount; When the weft yarn storage was full, the loom wefting insertion was waited in controlled motor 3 stalls; During wefting insertion, draw weft yarn by damper 8, sheet tensioner 9, rectangular support plate 10, tension force restoring device 11 and rectangular support plate 12 with holes with holes.

Open loom and draw weft yarn, the weft yarn on the yarn drum constantly reduces, measure no weft yarn signal by sensor after, 3 rotations of electric-controlled box 2 control controlled motors continue to store up latitudes; Then constantly wefting insertion, constantly store up latitude, to satisfy the needs that loom is weaved cotton cloth.

Electric-controlled box 2 can have the single-chip microcomputer frequency control of interchange or two kinds of forms of direct current dutycycle speed governing, joins the AC and DC motor respectively.Controlled motor 3 also has interchange or two kinds of forms of direct current generator.But arranging at interval yarn weft spacings s root a tree name on yarn drum 6 weaves cotton cloth and adjusts.

Sensor 7 has that photoelectricity blocks that formula, infrared electro are reflective, three kinds of hall sensing formulas.Wherein the infrared electro reflection sensor as shown in Figure 3, it is made up of the infrared transmitting tube 17 and the infrared receiving tube 18 that are fixed on around yarn drum 6 tops, hall sensing formula sensor as shown in Figure 4, it comprises around the hall probe 13 of yarn drum top and the magnet 14 that is fixed on the yarn drum and forming, wherein magnet 14 be by spring 15 with join around the yarn drum.Above-mentioned three kinds of sensors can be chosen any one kind of them.

Damper 8 has metal net shaped or two kinds of Brush types, and with S twist with the fingers, Z twists with the fingers, the straight sth. made by twisting, the equal root a tree name of above-mentioned two or more structure fabric needs, and selects a kind of use for use.

Claims

1, a kind of interval setting-up-yarn type weft accumulator, it comprises weft yarn input tensioner (1), electric-controlled box (2), controlled motor (3), cone type magnetic suspension mechanism (4), around yarn dish (5), around yarn drum (6), sensor (7), damper (8), sheet yarn gripper (9) and tension force restoring device (11) composition

It is characterized in that:

Described axis around yarn drum (6) has a combined deflection angle α with respect to the axis of controlled motor (3).