CN201406522Y

CN201406522Y - Force amplifier of cloth winding device of loom

Info

Publication number: CN201406522Y
Application number: CN2009200453364U
Authority: CN
Inventors: 钱志良; 秦乐宁
Original assignee: Suzhou University
Current assignee: Suzhou University
Priority date: 2009-05-15
Filing date: 2009-05-15
Publication date: 2010-02-17
Anticipated expiration: 2019-05-15

Abstract

The utility model discloses a force amplifier of a cloth winding device of a loom, belonging to the technical field of textile machinery. The force amplifier comprises a force-amplifying lever and a loading lever, wherein the force-amplifying lever (17) is movably articulated on a fixed shaft (22) of the force-amplifying lever; one end of the force-amplifying lever is under the action of the spring force of a pressure spring (19), and the other end thereof is provided with an adjusting screw (16); the end of the adjusting screw butts against one end of the loading lever (15); the other end ofthe loading lever is movably articulated and fixed on a fixed shaft (29) of the loading lever; the middle part of the loading lever is fixedly connected on a pin; and a loading bearing which is arranged on the pin is closely pressed on a driving friction disc (10) of a friction clutch. In the utility model, the length of force arms of the two levers are simultaneously changed by changing the position of the adjusting screw on the force-amplifying lever, a loading mechanism has great output force adjustment range under a certain input force, and the requirements of controllable tension cloth winding for different fabrics are met.

Description

A kind of force-increasing mechanism of cloth-rolling device of weaving machine

Technical field

The utility model relates to a kind of control device of regulating batching tension force in the loom machine, is specifically related to a kind of force-increasing mechanism of cloth-rolling device of weaving machine, belongs to technical field of textile machine.

Background technology

Cloth-rolling device of weaving machine is the isolated plant that every loom all need be equipped with, and its effect is with regular being wound on the cloth beam of the woven fabric of loom, avoids the unordered accumulation of fabric to influence spinner's operation and causes fabric contamination, wrinkle or damage.The main design objective of cloth rewinder is the tension force basically identical of each layer cloth in neat, the middle no wrinkle in yardage roll two ends, the yardage roll, because only in this way, the fabric tension substantially constant that could keep loom take-up roll to draw, to help weaving and the raising of fabric quality of fabric, can make things convenient for post processings such as fabric inspection simultaneously again.Cloth rewinder will realize that above-mentioned design objective need solve the problem of following several respects: the first, and the multifactorial influence of length audient of institute's woven fabric is not a constant in the loom unit interval, so the cloth winding amout of cloth beam unit interval neither constant; The second, in the batching process, the diameter of yardage roll increases gradually, and the length of the cloth that makes cloth beam whenever go around to be reeled also increases thereupon gradually, and corresponding cloth beam rotating speed must slow down gradually; The 3rd, for making the tension force substantially constant of cloth in the batching process, the driving moment on the cloth beam must increase with the increase of cloth coil diameter.

In order to address the above problem, the technical scheme of disclosed cloth-rolling device of weaving machine mainly contains at present: Chinese invention patent " cloth rewinder of loom " (CN1271263C) adopts the drive unit of controllable rotation speed to order about the cloth beam rotation, but structure is complicated, and price is higher; Chinese invention patent " loom take up " (CN100376734C) adopts slip clutch to detect with the cloth coil diameter and combines with load maintainer, drives the control that cloth beam rotated and realized batching tension force, and structure is simpler, and is easily manufactured, and price is cheaper.The target of this technical scheme is the constant tension of realizing in the batching process, its working mechanism is: under the initial installation situation of no cloth on the cloth beam, by regulating first adjusting nut, second adjusting nut and adjustment screw, the friction coupling device is applied an initial normal pressure, make it produce an initial output torque; In batching process thereafter, increase along with the cloth coil diameter, again by compress roller, compress roller fork, perception guide rod, perception stage clip, perception fork and press fork etc. that the external friction plate of friction coupling device is applied a normal pressure that increases progressively gradually, so that the output torque of friction coupling device can increase with the increase of cloth coil diameter, thereby keep batching tension force substantially constant.Yet the woven fabric variety of loom is diversified, as batching tension force should be less when weaving silk class cloister fabric, otherwise can cause damage to fabric; Batching tension force should be bigger when weaving cowboy's dry goods heavily fabric, otherwise the fabric in the yardage roll can produce wrinkle, influences the post processing of fabric.The perception fork of this technical scheme rotates around same fixed hinge point with pressing fork, after installation, actual leverage of above-mentioned two members, this lever is fixed the reinforcement effect of the spring force of perception spring, press fork that the loading effect of friction coupling device external friction dish is also fixed, can not change with the change of fabric variety; So this technology is relatively poor to the adaptability of fabric.

Summary of the invention

The utility model purpose provides the force-increasing mechanism of the cloth-rolling device of weaving machine that a kind of controlled tension force batching that is applicable to various different fabrics needs.

For achieving the above object, the technical solution adopted in the utility model is: a kind of force-increasing mechanism of cloth-rolling device of weaving machine, cloth rewinder comprises slip clutch, cloth coil diameter testing agency and load maintainer, and described load maintainer comprises reinforcement bar, load bar, adjustment screw, load bearings and bearing pin; Described reinforcement bar is movably hinged in reinforcement bar fixed axis, and its end is connected with push rod clearance in the cloth coil diameter testing agency, is subjected to the spring force effect of stage clip, and the other end is equipped with the adjustment screw, and an end of load bar is withstood in the end of adjusting screw; The other end of described load bar is movably hinged in being fixed in the load bar fixed axis, and the middle part of load bar is fixedly connected on the bearing pin, and the load bearings that is installed on the bearing pin is pressed on the active frictional disk of slip clutch.

Described reinforcement bar, the end at mounting screw is provided with the screwed hole that several are used to adjust screw position, or has microscler groove.

Because the technique scheme utilization, the advantage that the utility model compared with prior art has is:

1, forms by reinforcement bar and two levers of load bar owing to load maintainer of the present utility model, change and adjust the position of screw on the reinforcement bar, can change the arm of force length of two levers simultaneously, thereby significantly change the ratio of power output with the input power of load maintainer, make load maintainer have very big power output (being that load maintainer acts on the normal pressure on the active frictional disk) adjustable range under the certain situation of input power.

2, because the output torque (or driving moment of cloth beam) of slip clutch is proportional to the normal pressure between the driving and driven frictional disk, so, corresponding with the power output of load maintainer, the output torque of slip clutch has also obtained very big adjustable range, thereby cloth rewinder provided by the invention can be satisfied be thinned on the lenient side the controlled tension force batching needs of thick and heavy various different fabrics.

3, the cloth rewinder that provides of the utility model is pure mechanical device, and is simple in structure, makes, installation and maintenance is convenient, with low cost, therefore, very has application value.

Description of drawings

Accompanying drawing 1 is the cutaway view of the force-increasing mechanism of the cloth-rolling device of weaving machine that provides of the embodiment of the invention;

Accompanying drawing 2 is front views of the force-increasing mechanism load bar that provides of inventive embodiments, and it is that the A of Fig. 1 is to view;

Among the figure: 1, bearing; 2, power shaft; 3, thrust bearing; 4, needle bearing; 5, output shaft; 6, radial thrust bearing; 7, attachment screw; 8, driven friction disk; 9, pilot pin; 10, active frictional disk; 11, friction plate; 12, friction plate stage clip; 13, packing ring; 14, nut; 15, load bar; 16, adjust screw; 17, reinforcement bar; 18, loom side; 19, stage clip; 20, adjust nut; 21, cam follower; 22, reinforcement bar fixed axis; 23, cloth beam; 24, yardage roll; 25, compress roller; 26, compress roller fork; 27, load bearings; 28, bearing pin; 29, load bar fixed axis.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further described:

Embodiment:

Referring to accompanying drawing 1, the slip clutch of the power shaft in the present embodiment, output shaft and two between centers by axle 1 hold, power shaft 2, thrust bearing 3, needle bearing 4, output shaft 5, radial thrust bearing 6, attachment screw 7, driven friction disk 8, pilot pin 9 initiatively form by frictional disks 10, friction plate 11, friction plate stage clip 12, packing ring 13 and nut 14 etc., fixing by loom side 18, specific embodiments is as follows: power shaft 2 is by the loom main shaft transmission; Cloth beam 23 by output shaft 5 by chain or band drivings such as (not drawing among the figure) synchronously; On power shaft 2, the diaxon dead in line also can relatively rotate hollow output shaft 5 by needle bearing 4 kinks; The active frictional disk 10 of slip clutch connects with power shaft 2 by spline, can move axially on power shaft 2; The driven friction disk 8 usefulness attachment screws 7 of slip clutch connect firmly with output shaft 5, and remaining driven friction disk is circumferentially fixing by pilot pin 9 relative driven friction disks 8, but can move axially along pilot pin 9; Friction plate 11 is transmitted frictional force by driving and driven frictional disk clamping between driving and driven frictional disk; Fastening nut 14 can apply a normal pressure by friction plate stage clip 12 between driving and driven frictional disk and friction plate.Like this, when power shaft 2 rotated, output shaft 5 can obtain one and the proportional output torque of above-mentioned normal pressure.

As shown in Figure 1, the specific embodiments of the cloth coil diameter testing agency in the present embodiment is: the compress roller 25 that is crimped on the yardage roll 24 is movably hinged with compress roller fork 26, can freely rotate around self axis; Compress roller fork 26 orders about push rod 21 and moves; Stage clip 19 1 ends that are enclosed within on the push rod 21 withstand adjustment nut 20, and the other end withstands reinforcement bar 17.When the yardage roll diameter increased, compress roller 25 ordered about fork 26 and clockwise rotates around axle, and moves down by push rod, the mobile decrement that can change stage clip of push rod, and then change the active force of stage clip to the reinforcement bar.

Referring to Fig. 1, Fig. 2, the specific embodiments of the slip clutch load maintainer among the present invention is: load maintainer is made up of load bar 15, adjustment screw 16, reinforcement bar 17, load bearings 27 and bearing pin 28 etc.The reinforcement bar is articulated in reinforcement bar fixed axis 22, can rotate around the axis; One end of reinforcement bar is connected with push rod 21 gaps in the cloth coil diameter testing agency, and be equipped with by the spring force effect of stage clip 19, the other end to adjust screw 16; The position-adjustable of screw 16 on the reinforcement bar, its end heads on load bar 15; Load bar 15 is movably hinged in load bar fixed axis 29, is fixedly connected on the bearing pin 27 at load bar middle part bearing 28 is housed, and bearing 28 is pressed on initiatively on the frictional disk 10; Tighten screw 16, can eliminate the gap in cloth coil diameter testing agency and the load maintainer, also can change the active force of load maintainer slip clutch active frictional disk.

As shown in Figure 2, one of control method of the position of reinforcement bar screwing 16 is: but reinforcement bar one end is shaped on the screwed hole of a plurality of mounting screws 16, each screwed hole axis has nothing in common with each other to the distance of reinforcement bar rotating shaft, or have a microscler groove, screw is installed in the different screwed holes or the diverse location of elongate slots, and screw axis is to the distance of axle and also different to the distance of the rotating shaft of load bar.For identical spring force, change the position of screw 16, can obtain the loading force of 28 pairs of actives of different bearings frictional disk 10.For cloister fabric, desired fabric tension is less in the batching process, can be installed in screw 16 at a distance from reinforcement bar fixed axis 22, the loading force of 28 pairs of actives of bearing frictional disk 10 reduces, the output torque of slip clutch reduces, the cloth beam driving moment decreases, and finally obtains desired less batching tension force; For heavily fabric, desired fabric tension is bigger in the batching process, can be installed in screw 16 from reinforcement bar fixed axis 22 more nearby, 28 pairs of initiatively loading force increases of frictional disk 10 of bearing, the output torque of slip clutch improves, the cloth beam driving moment improves thereupon, finally obtains desired bigger batching tension force.

Claims

1. the force-increasing mechanism of a cloth-rolling device of weaving machine, cloth rewinder comprises slip clutch, cloth coil diameter testing agency and load maintainer, it is characterized in that: described load maintainer comprises reinforcement bar [17], load bar [15], adjusts screw [16], load bearings [27] and bearing pin [28]; Described reinforcement bar is movably hinged in reinforcement bar fixed axis [22], its end is connected with push rod [21] gap in the cloth coil diameter testing agency, be subjected to the spring force effect of stage clip [19], the other end is equipped with the adjustment screw, and an end of load bar is withstood in the end of adjusting screw; The other end of described load bar is movably hinged in being fixed in load bar fixed axis [29], and the middle part of load bar is fixedly connected on the bearing pin, and the load bearings that is installed on the bearing pin is pressed on the active frictional disk [10] of slip clutch.

2. the force-increasing mechanism of a kind of cloth-rolling device of weaving machine according to claim 1, it is characterized in that: described reinforcement bar at an end of mounting screw, is provided with at least 2 screwed holes that are used to adjust screw position, or has microscler groove.