CN201276628Y

CN201276628Y - Detection and pressure device of drawer

Info

Publication number: CN201276628Y
Application number: CNU200820190856XU
Authority: CN
Inventors: 夏家兴; 郑强; 徐斯云; 徐鸿
Original assignee: TIANMEN TEXTILE MACHINERY CO Ltd
Current assignee: TIANMEN TEXTILE MACHINERY CO Ltd
Priority date: 2008-09-12
Filing date: 2008-09-12
Publication date: 2009-07-22
Anticipated expiration: 2018-09-12

Abstract

The utility model namely aims at various disadvantages of above device, overcomes the deficiency existed in prior art, provides a pressure loading device which is used to detect a roller and has high precision drive displacement, sensitive action response, and simple operation with stability and reliability. The utility model includes a convex roller with a swing arm, a tensile spring, a displacement sensor, a cylinder and a concave roller and the like. The concave roller which is fixed on a frame is connected with the convex roller which is fixed on the swing arm through a double-sided toothed belt and a toothed belt wheel, a swing cylinder which is fixed on the frame is connected with a thread scale which is fixed on the swing arm by using nuts through a lever and the tensile spring, the displacement sensor which is fixed on the frame is contacted with an adjusting screw which is fixed on the swing arm through a telescopic link thereof.

Description

A kind of detection pressue device of drawing frame

Affiliated technical field

The utility model belongs to field of textile machinery, relates to the textile machine of some product continuous reelings, and the needed embossing roller of particularly a kind of band short autoleveller drawing frame detects pressue device.

Technical background

Drafting is the bottleneck operation in spinning technological process, is that last road has and cooperation is used, and can improve bar and do and weigh irregular critical process.Fast development along with the cotton spinning textile technology, the exploitation of drawing frame is also to a new stage, for be applicable to after the combing or open-end spinning together and close and drawing-off, also be applicable to kinds of processes such as textile spinning process, polyester cotton blending technology, chemical fibre, medium staple chemical fiber and blending technology thereof and close and drawing-off, in drawing frame, disposed short autoleveller, to improve sliver short-term evenness, straightening of fibers degree and the depth of parallelism, the different mixing of quality fiber in sliver more become evenly, for the spun yarn that obtains good quality is created necessary condition.Embossing roller pressurization testing agency then is an important component part in the short autoleveller system, and the precision of its detection directly has influence on spinning quality (bar that comprises yarn is done and be heavy irregular etc.).

Detection roller pressurization when beginning, be spring to be implemented pressurization with a kind of eccentric handle mechanism, this mechanism is that automaticity is not high on the one hand, be that this mechanism self gap easy to wear is big on the other hand, measure error is big behind pressurization and the release of pressure, make and process sliver quality instability, influenced the product quality of whole drawing frame.

Subsequently, abroad some producers have worked out a kind of cylinder pressue device again, utilize compressed air directly to promote piston and piston rod comes transferring power and motion.In this case, because the sealing of piston and piston rod restriction, make its piston transmission displacement accuracy and piston action reaction sensitivity be subjected to very big restriction, when the change in displacement of cylinder piston less than 0.1mm, be difficult to measure with displacement transducer, add the frequency height of change in displacement, the axial rub resistance of common cylinder is also bigger, this transmits displacement accuracy at several microns for needs, and the high service condition of movement response sensitivity can not reach.

Summary of the invention

The utility model is promptly at all drawbacks of above device, overcome the deficiency that prior art exists, adopt the Trinitarian modern Design of electrical-mechanical, a kind of transmission displacement accuracy height is provided, movement response sensitivity, detection roller pressue device reliable and stable, easy and simple to handle.

Technical solution of the present utility model is: a kind of detection pressue device of drawing frame, comprise protruding roller, extension spring, displacement transducer, cylinder and the recessed roller etc. of being with swing arm, the described recessed roller that is fixed on the support is connected through double-sided toothed belt and profile of tooth belt wheel with protruding roller on being fixed on swing arm, the oscillating cylinder that is fixed on the support is connected with the screw thread scale that is fixed on nut in the swing arm with extension spring by lever, and the displacement transducer that is fixed on the support contacts with adjustment screw on being fixed on swing arm through its expansion link.

The beneficial effects of the utility model are: 1, based on to detecting roller diameter and the isoparametric optimal design of extension spring material stiffness, add the pluses and minuses of having considered former detection pressue device, maximize favourable factors and minimize unfavourable ones, a kind of new cylinder spring mixing pressing mechanism, apply to detect to add and press, promptly satisfy the high accuracy and the high sensitivity requirement of serviceability, improved automation again, can fill up this project domestic blank;

2, the utility model is mainly by high-precision spring pressurization, and the sensitive inadequately cylinder of reaction does not directly contact pressure point, by the tiny spring pressurization of lever drives, guarantees that moulding pressure is stable, the reaction sensitivity height;

3, because cylinder is common cylinder, and cost is comparatively cheap, under the situation that automation improves, can additionally not increase machine cost;

4, only need to touch button and can add the release conversion, operate very easy with a finger point.

Description of drawings

Fig. 1 is the utility model structural representation

The specific embodiment

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:

Referring to Fig. 1, a kind of detection pressue device of autoleveller draw frame, comprise protruding roller 6, extension spring 12, displacement transducer 1, cylinder 8 and the recessed roller 10 etc. of being with swing arm, it is characterized in that: the recessed roller 10 that is fixed on the support links through double-sided toothed belt and profile of tooth belt wheel with the protruding roller 6 that is fixed in the swing arm 3, the oscillating cylinder 8 that is fixed on the support is connected with the screw thread scale 7 that is fixed on nut in the swing arm 3 with extension spring 12 by lever 11, and the displacement transducer 1 that is fixed on the support contacts with adjustment screw 2 on being fixed on swing arm through its expansion link.Change the direct pressurization of the cylinder of prior art into cylinder 8 and pressurize by 12 pairs of yarns 9 of extension spring, improved sensitivity greatly by lever 11.

The course of work: yarn 9 passes the jaw that embossing roller (10,6) is formed by the diagram direction of arrow, cylinder 8 is by lever 11 pulling extension springs 12, swing arm 3 is around the O spot wobble, it is close to fixed recessed roller 10 to drive protruding roller 6, thereby yarn 9 is pressurizeed, just strip 9 is compressed, like this, the weight of yarn 9 can be transformed into voltage signal by displacement transducer 1 detected its varied in thickness, the autoleveller control system is sent instruction and is made the servo control mechanism action, change the total draft multiple, thereby the shaping that reaches standard is quantitative.Wherein, regulate adjustment screw 2 and can carry out the demarcation of displacement transducer 1, adjusting nut can change the size of moulding pressure, and its value can be read on scale 7.

As previously mentioned, drawing frame of the present utility model detects the necessary mechanism of drawing frame that pressue device is the band autoleveller, through pressuring method, embossing roller diameter, spring diameter and material etc. are carried out modern optimized design, this device is reliable and stable, under the situation that guarantees serviceability, utilize cylinder to replace handle mechanism, the hommization operation is fully reflected.

Claims

1. the detection pressue device of an autoleveller draw frame, comprise the protruding roller (6) of being with swing arm, extension spring (12), displacement transducer (1), cylinder (8) and recessed roller (10) etc., it is characterized in that: the recessed roller (10) that is fixed on the support links through double-sided toothed belt and profile of tooth belt wheel with the protruding roller (6) that is fixed in the swing arm (3), the oscillating cylinder (8) that is fixed on the support is connected with screw thread scale (7) be fixed on swing arm (3) with nut on by lever (11) and extension spring (12), and the displacement transducer (1) that is fixed on the support contacts with adjustment screw (2) on being fixed on swing arm through its expansion link.