CN103469471B - Yarn broken signal trigger mechanism for yarn tension adjusting device - Google Patents

Abstract

The invention discloses a yarn broken signal trigger mechanism for a yarn tension adjusting device and belongs to a computerized flat knitting machine. The yarn tension adjusting device comprises a case body, a case cover which is matched with the case body, a circuit board which is arranged inside the case chamber, a yarn broken signal generating mechanism which is corresponding to the circuit board, a yarn pre-tension adjusting mechanism which is arranged on a yarn pre-tension adjusting mechanism installation seat, a large and small yarn knot signal collecting mechanism, a yarning-free mechanism; one end of the case body is provided with an indicator-lamp cover chamber; the other end of the case boy extends to be provided with a yarn pre-tension adjusting mechanism installation seat; the yarning-free mechanism and the case body lower portion which is towards the case cover are fixed; a yarn embedding cleat is arranged at one end of the case body; the yarn broken signal trigger mechanism comprises a yarn broken signal collecting rod with one end being formed into a free end and the other end being connected to the other end of the case body; the yarn broken signal generating mechanism compromises a rotary arm shaft seat, a yarn broken signal rocker arm, a torsional spring and a yarn broken collector. The yarn broken signal trigger mechanism for the yarn tension adjusting device has the advantages of guaranteeing reliability and stability of the yarn broken generating mechanism actions, simplifying structures of the yarn broken signal generating mechanism and not needing to adjust the yarn broken signal generating mechanism.

Description

The broken signal trigger mechanism for yarn of device for adjusting tension of yarn

Technical field

The invention belongs to computer plain flat knitter technical field, be specifically related to a kind of broken signal trigger mechanism for yarn of device for adjusting tension of yarn, give the computer controller of computer plain flat knitter when yarn breakage to signal, send signal by computer controller and the knitting mechanism of computer plain flat knitter is quit work.

Background technology

Aforesaid device for adjusting tension of yarn also claims feed carrier, and due to the usual upper lateral part being arranged on one end of computer plain flat knitter, thus industry is also referred to as sky, side wire tension adjustment arrangement visually, is even directly called " side antenna platform ".Known, tension force due to yarn is not constant, because both namely form the impact of the fibrous raw material of yarn by own material, climate is as the impact of environment temperature and/or humidity again, therefore usually need to adjust in time according to tension force that is a certain or a few or whole yarns in knitting mechanism braiding process, use the yarn feeding effect ensured knitting mechanism.

As shown in the above description, although device for adjusting tension of yarn differs in appellation nominally, but be tending towards identical with regard to its function, and be no lack of in published Chinese patent literature and be seen in, slightly with " the broken yarn alarm mechanism of the yarn pretension regulator of computer plain flat knitter " that " yarn break alarming device of the yarn pretension adjusting mechanism of computer plain flat knitter " as Authorization Notice No. CN202011960U recommendation that exemplify and CN202011961U provide, etc.

" there is the feed carrier of the computer plain flat knitter of yarn knuckle warning function " that " feed carrier of computer plain flat knitter " that " device for adjusting tension of yarn of computer plain flat knitter " that typical case introduces as application for a patent for invention publication number CN102888705A, CN102888706A disclose and CN102888707A disclose.These three patent applications all overcome the shortcoming of aforementioned CN202011960U and CN202011961U, specifically can see the description of these three patent applications the 0003rd and 0004 section.

Be not limited to the patent that exemplifies above and patent application scheme all has broken signal trigger mechanism for yarn, although and broken signal trigger mechanism for yarn there are differences in form, but the mechanism of action is tending towards identical, with aforesaid CN102888705A, CN102888706A and CN102888707A is example, broken signal trigger mechanism for yarn comprises lever jack, guide pole socket and guide porcelain circle, lever jack adopts the steel wire with excellent resilience, guide porcelain circle is fixed on one end of lever jack, guide pole socket is fixed on the other end of lever jack and is connected with broken yarn alarm mechanism, broken yarn alarm mechanism is arranged in the box chamber of box body.During use, the yarn of drawing on yarn dish is successively by way of yarn pretension adjusting mechanism, the head that knitting mechanism introduced by guide porcelain circle is passed after yarn major tubercle signals collecting mechanism and yarn lesser tubercle signals collecting mechanism, the one end being namely provided with the lever jack of guide porcelain circle as free end is made to be in finite-state by yarn, so, in knitting mechanism braiding process, once there is yarn breakage situation, because yarn loses the tube bank (yarn is escaped in guide porcelain circle) to guide porcelain circle, thus namely one end speed that namely one end of lever jack has a guide porcelain circle upwarp or claim to be upturned, thus drive the guide pole socket of the other end to turn round certain angle by lever jack in the process be upturned, because guide pole socket is connected with broken yarn alarm mechanism, thus broken yarn alarm mechanism is driven to turn round corresponding angle by guide pole socket, make the broken yarn signal picker (magnet) on the broken yarn signal lever of broken yarn alarm mechanism corresponding with the broken yarn signal response device (tongue tube) on the circuit board be arranged in box body, by broken yarn signal response device by signal feedback to computer controller, signal is sent to knitting mechanism by computer controller, knitting mechanism is made to be in the state of quitting work, the yarn of fracture is connected by the personnel of working online, then knitting mechanism is resumed work.

There is following shortcoming in the broken signal trigger mechanism for yarn of said structure form: one, free end due to lever jack is restrained it by the tension force of yarn, thus (also broken yarn signal generation mechanism must be claimed by supporting broken yarn alarm mechanism, as follows), and be necessary for broken yarn alarm mechanism and be equipped with a spring, by spring by broken yarn signal lever (also claiming broken yarn signals collecting bar, as follows) to the active force that guide pole socket applies and yarn tension balances each other (specifically can see the description of the description of these three patents to broken yarn alarm mechanism).It can thus be appreciated that the mode of action upwarped with lever jack drives broken yarn alarm mechanism that total can be made to be tending towards complicated; They are two years old, because broken yarn alarm mechanism must be equipped with spring, and the critical defect of spring easily produces fatigue because time is of a specified duration, thus affect the reliability of broken yarn warning, that is the broken yarn signal picker (magnet) on the broken yarn signal lever of broken yarn alarm mechanism can not with the broken yarn signal response device (tongue tube) on wiring board reliably to time corresponding so computer controller cannot obtain the broken yarn signal coming from circuit board, and knitting mechanism is braiding as usual, easily makes fabric occur flaw; Its three, due to the spring force of the spring to broken yarn alarm mechanism adjustment need operated by rich experiences person, thus operate and comparatively bother, and be difficult to hold appropriateness.

In view of above-mentioned prior art, very there is necessity of improvement, the applicant has carried out lasting and useful exploration for this reason, finally find a way to resolve the problem, define technical scheme described below, and carried out simulated test in the applicant plant area taking under secrecy provision, result shows beyond thought technique effect.

Summary of the invention

Task of the present invention is to provide a kind of and contributes to making broken yarn signals collecting bar to move when there is broken yarn naturally to fall mode and use the Reliability of Microprocessor that ensures broken yarn signal generation mechanism and stability, be conducive to significantly simplifying the structure of broken yarn signal generation mechanism and use and significantly reduce component number, be of value to and avoid carrying out loaded down with trivial details adjustment to broken yarn signal generation mechanism and use the broken signal trigger mechanism for yarn embodying device for adjusting tension of yarn simple to operate.

Task of the present invention has been come like this, a kind of broken signal trigger mechanism for yarn of device for adjusting tension of yarn, described device for adjusting tension of yarn comprises the box body being configured with box body chamber, one end of this box body is configured with an indicator-lamp cover chamber, and is extended with a yarn pretension adjusting mechanism mount pad in the below of the other end of this box body, one for covering to described box body chamber the lid protected, and this lid matches with box body, one circuit board, this circuit board is arranged in described box body chamber, and is electrically connected by the computer controller of circuit and computer plain flat knitter, one broken yarn signal generation mechanism, this broken yarn signal generation mechanism is arranged in described box body chamber in the position of the described other end corresponding to described box body, and corresponding with described circuit board, one yarn pretension adjusting mechanism, this yarn pretension adjusting mechanism is arranged on described yarn pretension adjusting mechanism mount pad, in the middle part of the box body chamber being arranged on described box body and a yarn major tubercle signals collecting mechanism corresponding with described circuit board and a yarn lesser tubercle signals collecting mechanism, yarn major tubercle signals collecting mechanism is between yarn lesser tubercle signals collecting mechanism and described broken yarn signal generation mechanism, one exempts from mechanism of entrying, this exempt to entry mechanism and described box body are fixed towards the below of the side of described lid, and match with described yarn major tubercle signals collecting mechanism and yarn lesser tubercle signals collecting mechanism simultaneously, in the end of described one end of described box body and the embedding yarn hook seat that takes the shape of the letter U of the shape that the below being positioned at this end is extended with an opening upwards, the embedding yarn hook that the shape that this embedding yarn hook seat is embedded with an opening upwards takes the shape of the letter U, described broken signal trigger mechanism for yarn comprises a broken yarn signals collecting bar, one end of this broken yarn signals collecting bar is configured to free end and described one end towards described box body is stretched, and the other end pivotable of this broken yarn signals collecting bar is connected to the described other end of box body, and be connected with described broken yarn signal generation mechanism, wherein: the end, described one end of described broken yarn signals collecting bar be configured with that a shape is identical with described embedding yarn hook seat and position is corresponding but opening towards under shape be the broken yarn signals collecting bar yarn hook of n shape, this broken yarn signals collecting bar yarn hook is also corresponding with the described mechanism that exempts to entry, described broken yarn signal generation mechanism comprises pivoted arm axle bed, the swing arm of broken yarn signal, torsion spring and broken yarn signal picker, pivoted arm axle bed is directly formed in the box body chamber of described box body, the middle part of broken yarn signal swing arm offers a signal swing arm connecting hole, the position that this signal swing arm connecting hole is corresponding to described pivoted arm axle bed is connected with the described other end of described broken yarn signals collecting bar, and a torsion spring support foot is configured with in one end of broken yarn signal swing arm, torsion spring is nested with on pivoted arm axle bed, one of them torsion spring pin in a pair torsion spring pin of this torsion spring is bearing on described torsion spring support foot, and another torsion spring pin in a pair torsion spring pin is bearing on the chamber wall in the box body chamber of described box body, broken yarn signal picker is embedded in the other end of broken yarn signal swing arm, and it is corresponding with described circuit board.

In a specific embodiment of the present invention, a broken yarn signal swing arm limited post is extended with in the position of the described other end corresponding to the swing arm of broken yarn signal in described box body chamber, broken yarn signals collecting lever arm is configured with at the described other end of described broken yarn signals collecting bar, at the end of this broken yarn signals collecting lever arm and the side towards box body is fixed with a tumbler shaft, this tumbler shaft probes into described pivoted arm axle bed and coordinates with pivoted arm axle bed pivotable, described signal swing arm connecting hole and pivoted arm the tip of the axis are fixed, and limit screw by the swing arm be disposed in the distal end faces of tumbler shaft to limit.

In another specific embodiment of the present invention, offer a major tubercle signals collecting catch to step down groove and offer a lesser tubercle signals collecting catch in the position corresponding to described yarn lesser tubercle signals collecting mechanism and to step down groove on the lower edge of described box body and corresponding to the position of described yarn major tubercle signals collecting mechanism, on described lid and correspond to described major tubercle signals collecting catch step down the position of groove offer one with major tubercle signals collecting catch step down major tubercle signals collecting catch slot to make way that groove 15a matches and correspond to described lesser tubercle signals collecting catch step down the position of groove offer one and lesser tubercle signals collecting catch to step down the lesser tubercle signals collecting catch slot to make way of fit depressions, the described mechanism that exempts to entry groove and lesser tubercle signals collecting catch groove of stepping down of simultaneously stepping down with major tubercle signals collecting catch is corresponding, greatly, lesser tubercle signals collecting catch is stepped down groove, major tubercle signals collecting catch slot to make way and lesser tubercle signals collecting catch slot to make way all communicate with described box body chamber, described circuit board is provided with broken yarn signal response device, yarn major tubercle signal response device and yarn lesser tubercle signal response device, corresponding with the described broken yarn signal generation mechanism that the described other end of described broken yarn signals collecting bar connects and broken yarn signal response device, yarn major tubercle signals collecting mechanism is corresponding with yarn major tubercle signal response device, yarn lesser tubercle signals collecting mechanism is corresponding with yarn lesser tubercle signal response device, a lever jack axle holder is configured with on described yarn pretension adjusting mechanism mount pad and towards the side of described yarn pretension adjusting mechanism, yarn pretension adjusting mechanism is arranged on this lever jack axle holder, the direction of described embedding yarn hook is towards upper, and the direction of described broken yarn signals collecting bar yarn hook towards under.

In another specific embodiment of the present invention, described yarn pretension adjusting mechanism comprises lever jack axle, in, outer yarn clipping dish, yarn clipping dish twizzle, pretension regulating spring, pretension regulating spring seat and pretension adjusting knob, one end and the described lever jack axle holder of lever jack axle are fixed, the other end is configured to horizontal boom end and is also configured with lever jack male thread on surface, in, outer yarn clipping dish is fitted to each other and is nested with on lever jack axle, yarn clipping dish twizzle to be nested with on lever jack axle and to be positioned at, between outer yarn clipping dish, pretension regulating spring and pretension regulating spring cover for seat are put on lever jack axle, wherein, one end of pretension regulating spring is bearing on outer yarn clipping dish, and the other end is bearing on pretension regulating spring seat, pretension adjusting knob be positioned at lever jack axle the described other end and with lever jack male thread threaded engagement, wherein: be configured with spring base damping tooth at pretension regulating spring seat towards a side surface of pretension adjusting knob, and pretension adjusting knob is configured with knob damping tooth towards a side surface of pretension regulating spring seat, knob damping tooth matches with spring base damping tooth, the top of described yarn clipping dish twizzle is configured with the yarn clipping dish twizzle guide inclined-plane for importing to for yarn in yarn clipping dish twizzle chamber, described yarn clipping dish twizzle chamber is corresponding with described embedding yarn hook.

In another specific embodiment of the present invention, described yarn major tubercle signals collecting mechanism comprises adjustment knob, adjustment screw shaft, adjustment spring, major tubercle catch holder, holder support column, fulcrum post, supporting key seat, the swing arm of major tubercle signals collecting and reset tension spring, adjustment knob is positioned at the side of described box body back to described box body chamber, adjustment screw shaft is connected towards one end of adjustment knob with described adjustment knob, and the other end adjusting screw shaft is equipped with a nut regulating sleeve with thread fiting mode, this nut regulating sleeve is configured with an adjustment spring-loaded chamber towards the side of adjustment spring, and on the outer wall of nut regulating sleeve, be configured with a pair nut sleeve shift fork, region between this pair nut sleeve shift fork is configured to holder axle and steps down chamber, adjustment spring is nested with on adjustment screw shaft, one end of this adjustment spring is bearing in the side of box body towards box body chamber, and the other end to probe in described adjustment spring-loaded chamber and is bearing on nut regulating sleeve, major tubercle catch holder is nested with on major tubercle catch holder pivotal axis in the position in chamber of stepping down corresponding to described holder axle rotationally, and this major tubercle catch holder pivotal axis is directly formed in box body towards on the wall body of the side in box body chamber, and probing into described holder axle steps down in chamber, a shake-up pin is configured with on this major tubercle catch holder pivotal axis and corresponding to the position of major tubercle signals collecting swing arm, and be fixed with the upper end of a major tubercle catch in the bottom of major tubercle catch holder with longitudinal cantilever position, and the lower end of this major tubercle catch is being stretched over outside described box body chamber corresponding to the described major tubercle signals collecting catch position of stepping down between groove and described major tubercle catch slot to make way, and it is corresponding with the described mechanism that exempts to entry, the yarn coming from described yarn pretension adjusting mechanism is by way of described major tubercle catch and to exempt to entry between mechanism and to be stopped by major tubercle catch when yarn existing major tubercle, major tubercle catch holder towards holder support column the narrow contracting in one end and be configured with a supporting head, supporting key seat is directly formed in box body towards in a sidewall bodies in box body chamber with horizontal boom state, and be configured with a fulcrum post mating groove at this supporting key seat towards the length direction of the side of fulcrum post, holder support column has a tube chamber, a support spring is provided with in this tube chamber, fulcrum post to insert towards one end of holder support column in the described tube chamber of holder support column and contacts with support spring, and fulcrum post is bearing in fulcrum post mating groove towards the one end of supporting key seat, the end face of holder support column towards one end of major tubercle catch holder is arranged with a supporting head and coordinates nest, described supporting head probes into supporting head and coordinates in nest, the middle part of major tubercle signals collecting swing arm is arranged on swing arm pivotal axis rotationally, this swing arm pivotal axis is directly formed in box body towards on the wall body of the side in box body chamber, one end of major tubercle signals collecting swing arm is corresponding with described shake-up pin, and the other end is connected with one end of reset tension spring, the other end of reset tension spring is fixed on reset tension spring axle, and reset tension spring axle is directly formed in box body towards on the wall body of the side in box body chamber, direction at the middle part of major tubercle signals collecting swing arm and towards described yarn lesser tubercle signals collecting mechanism is extended with a major tubercle signal picker seat, a major tubercle signal picker is equipped with on this major tubercle signal picker seat and towards the side of described circuit board, this major tubercle signal picker is corresponding with described yarn major tubercle signal response device, described major tubercle catch is corresponding with described embedding yarn hook, what be positioned on described box body is greatly described, lesser tubercle signals collecting catch slot to make way and the major tubercle signals collecting catch slot to make way be positioned on described lid and lesser tubercle signals collecting catch slot to make way are rectangular channel.

Also have in a specific embodiment of the present invention, described yarn lesser tubercle signal picker comprises adjusting knob, adjusting screw(rod) axle, regulating spring, lesser tubercle catch holder, the swing arm of lesser tubercle signals collecting and back-moving spring, adjusting knob is positioned at the side of described box body back to described box body chamber, adjusting screw(rod) axle is connected towards one end of adjusting knob with adjusting knob, a nut sleeve is equipped with thread fiting mode at the other end of adjusting screw(rod) axle, this nut sleeve is configured with regulating spring supporting cavity towards the side of regulating spring, and on the outer wall of nut sleeve, be configured with a pair pusher dog, space between a pair pusher dog is configured to fixed axis and steps down cavity, regulating spring is nested with on adjusting screw(rod) axle, and one end of this regulating spring is bearing in described box body towards on the wall body of side, box body chamber, and the other end probes into regulating spring supporting cavity and is bearing in nut sleeve, lesser tubercle catch holder is nested with on lesser tubercle catch holder pivotal axis in the position of cavity of stepping down corresponding to described fixed axis rotationally, and this lesser tubercle catch holder pivotal axis is directly formed in box body on the wall body of the side in box body chamber is stretched over fixed axis and steps down cavity, a haptic element is configured with on this lesser tubercle catch holder and corresponding to the position of lesser tubercle signals collecting swing arm, and be fixed with the upper end of a lesser tubercle catch in the bottom of lesser tubercle catch holder with cantilever position, and the lower end of lesser tubercle catch is being stretched over outside described box body chamber corresponding to the described lesser tubercle signals collecting catch position of stepping down between groove and described lesser tubercle catch slot to make way, and with described exempt to entry mechanism and described embedding yarn hook corresponding, the yarn coming from described yarn pretension adjusting mechanism by way of described major tubercle catch and exempt to entry after between mechanism from lesser tubercle catch and exempt to entry between mechanism by and responded by lesser tubercle catch when yarn exists lesser tubercle, exempt to entry between mechanism by and responded by lesser tubercle catch when yarn existing lesser tubercle, the middle part of lesser tubercle signals collecting swing arm is arranged on swing arm hub setting axle rotationally, this swing arm hub setting axle is directly formed in box body towards on the wall body of side, box body chamber, one end of lesser tubercle signals collecting swing arm is corresponding with described haptic element, and the other end is connected with one end of back-moving spring, the other end of back-moving spring is fixed on back-moving spring axle, this back-moving spring axle is directly formed in box body towards on the wall body of side, box body chamber, a lesser tubercle signal picker seat is extended with at the middle part of lesser tubercle signals collecting swing arm, a lesser tubercle signal picker is embedded with on this lesser tubercle signal picker seat and towards the side of described circuit board, this lesser tubercle signal picker is corresponding with described yarn lesser tubercle signal response device, described lesser tubercle catch with to state embedding yarn hook corresponding, and it is corresponding with described major tubercle catch.

More of the present invention and in a specific embodiment, the described mechanism that exempts to entry comprises and exempts from threading board, by yarn plate and draw yarn spoon, exempt from threading board and described box body is fixed, exempt from the end, one end of the length direction of threading board at this and be configured with one towards the side of box body and draw yarn spoon seat, draw yarn spoon to be plugged on this and to draw on yarn spoon seat and corresponding with described embedding yarn hook, be fixed on by yarn plate and exempt from threading board towards the side of box body and be positioned at the middle part of the length direction of exempting from threading board, should one end of yarn plate be leaned on and be configured with a lesser tubercle catch fitting projection in the position corresponding to described lesser tubercle catch, and lean on the other end of yarn plate and be configured with a major tubercle catch fitting projection in the position corresponding to described major tubercle catch, be configured with a yarn pretension adjusting mechanism at the other end of the length direction of exempting from threading board to step down chamber, exempt from threading board towards the side of box body and correspond to described by the position above yarn plate be configured with one for yarn is imported to simultaneously between major tubercle catch fitting projection and major tubercle catch and between lesser tubercle catch fitting projection and lesser tubercle catch by yarn plate guide inclined-plane, and to step down the top of chamber wall in chamber and the yarn pretension adjusting mechanism guide inclined-plane be configured with towards the side of box body for the yarn pretension adjusting mechanism described in yarn is imported at yarn pretension adjusting mechanism, the described incline direction by yarn plate guide inclined-plane and yarn pretension adjusting mechanism guide inclined-plane all towards under, wherein: between described major tubercle catch and major tubercle catch fitting projection, maintain the major tubercle catch gap for stoping the major tubercle on yarn to pass through, and between described lesser tubercle catch and lesser tubercle catch fitting projection, maintain the lesser tubercle catch gap that the lesser tubercle on yarn is scraped, major tubercle catch gap is greater than lesser tubercle catch gap.

In an of the present invention and then specific embodiment, described draw yarn spoon is configured with one for yarn is imported to draw yarn spoon to draw in yarn spoon chamber and entry deterrence to be escaped in what draw yarn spoon chamber to the yarn drawn in yarn spoon chamber and is drawn yarn spoon guide sealing sheet simultaneously; Described embedding yarn hook is configured with one for yarn is imported to embedding yarn hook embedding yarn hook chamber in and simultaneously entry deterrence escape in the embedding yarn hook guide sealing sheet in embedding yarn hook chamber to the yarn in embedding yarn hook chamber.

Of the present invention again more and in a specific embodiment, one is being configured with by yarn plate earthing pin holder towards the side of described box body and corresponding to the described position by yarn plate at described threading board of exempting from, grounding leg fixed leg is configured with in this seat chamber by yarn plate earthing pin holder, by line plate being extended with one by line plate earthing pin, should fix by line plate earthing pin and grounding leg fixed leg.

In an again of the present invention and then specific embodiment, to exempt from threading board described and be configured with a pair by yarn plate support column corresponding to the described position by yarn plate, this a pair by one of them in yarn plate support column by yarn plate support column and the side contacts of described lesser tubercle catch fitting projection back to described lesser tubercle catch, and a pair is leaned on yarn plate support column and described major tubercle catch fitting projection back to a side contacts of described major tubercle catch by another in yarn plate support column.

Technical scheme provided by the invention due in the end, one end of broken yarn signals collecting bar and correspond to the position of embedding yarn hook seat be configured with an opening towards under shape be the broken yarn signals collecting bar yarn hook of n shape, thus by the yarn by way of broken yarn signals collecting bar yarn hook broken yarn signals collecting bar can be in and lift outstanding shape, and once yarn breakage, one end of broken yarn signals collecting bar is then made naturally to fall, and drive broken yarn signal generation mechanism by its other end, ensure that the reliable in action of broken yarn signal generation mechanism is with stable; Because the motion mode of broken yarn signals collecting bar falls naturally for during broken string, thus significantly simplify the structure of broken yarn signal generation mechanism, and in use without the need to regulating broken yarn signal generation mechanism.

Accompanying drawing explanation

Fig. 1 is embodiments of the invention structure chart.

Fig. 2 is the schematic diagram of box body back to the side in box body chamber of Fig. 1.

The adjustment knob that Fig. 3 is the yarn major tubercle signals collecting mechanism shown in Fig. 1 and the matching chart adjusting screw shaft.

Fig. 4 is the schematic diagram of the embedding yarn hook shown in Fig. 1.

Fig. 5 is the front schematic view after Fig. 1 removes lid.

Detailed description of the invention

In order to enable the auditor of Patent Office especially the public clearly understand technical spirit of the present invention and beneficial effect, applicant will elaborate below by way of example, but be not all the restriction to the present invention program to the description of embodiment, any conceive according to the present invention done be only pro forma but not substantial equivalent transformation and all should be considered as technical scheme category of the present invention.

In the following description every likely relate to upper and lower, left, center, right, front and rear directionality or claim directionality concept to be all for the location status residing for current figure, thus can not be interpreted as the restriction to the present invention program according to this.

Refer to Fig. 1, Fig. 2 and Fig. 5, give and preferably use plastics and via the molded and shaped box body 1 of mould, this box body 1 has a box body chamber 11, an indicator-lamp cover chamber 12 is configured with in one end (left end of state shown in Fig. 1) of box body 1, an indicator-lamp cover 121 is fixed with to insert embedding mode in the position in this indicator-lamp cover chamber 12, the color of indicator-lamp cover 121 is preferably red or yellow, on box body 1 and corresponding to the position above indicator-lamp cover 121, offering an alarm lamp caulking groove 16.Be extended with a yarn pretension adjusting mechanism mount pad 13 in the below of the other end (right-hand member namely shown in Fig. 1) of box body 1, on this yarn pretension adjusting mechanism mount pad 13 and towards the side of the yarn pretension adjusting mechanism 6 also will described in detail, be configured with a lever jack axle holder 131 below.Again, on the lower edge in the box body chamber 11 of box body 1 and the position being positioned at the middle part of the length direction of box body 1 substantially offers the rectangular major tubercle signals collecting catch of a shape steps down groove 15a, and offer a shape and the major tubercle catch identical lesser tubercle catch of groove 15a of stepping down to step down groove 15b in the step down left side (for location status shown in Fig. 1) of groove 15a of this major tubercle signals collecting catch.And, aforementioned one end of box body 1 end and the below being positioned at the end of this one end is extended with an embedding yarn hook seat 14, the shape of this embedding yarn hook seat 14 is the U-shaped of opening upwards, and on the chamber wall in the embedding yarn hook seat chamber of this embedding yarn hook seat 14, be configured with the embedding yarn hook mating flanges 142 that is raised in chamber wall, in the embedding yarn hook seat chamber of embedding yarn hook seat 14, be embedded with an embedding yarn hook 141.

Refer to Fig. 4 and continue composition graphs 1, Fig. 2 and Fig. 3, aforesaid embedding yarn hook 141 being configured with one for being imported to by yarn 10 in the embedding yarn hook chamber 1411 of embedding yarn hook 141 and play entry deterrence and escape in the embedding yarn hook guide sealing sheet 1412 in embedding yarn hook chamber 1411 to the yarn in embedding yarn hook chamber 1411 simultaneously.Shown in Fig. 1 and Fig. 4, the shape of embedding yarn hook guide sealing sheet 1412 is the shape of olecranon, yarn 10 can only show from the sealing sheet probe hole 1413(Fig. 4 the end of embedding yarn hook guide sealing sheet 1412 and embedding yarn hook 141) between passage in enter embedding yarn hook chamber 1411, and can not exit embedding yarn hook chamber 1411, this is because guide arc surface 14121(Fig. 4 that embedding yarn hook guide sealing sheet 1412 is configured to tilt towards the direction of sealing sheet probe hole 1413 back to the surface of the side in embedding yarn hook chamber 1411 indicates).Because the shape of embedding yarn hook seat 14 is U-shaped, and in embedding yarn hook seat chamber, be configured with embedding yarn hook mating flanges 142, thus the shape of embedding yarn hook 141 is equally in U-shaped, and on the outer wall of embedding yarn hook 141, be configured with embedding yarn hook mating flanges groove 1414, this embedding yarn hook mating flanges groove 1414 matches with embedding yarn hook mating flanges 142, thus embedding yarn hook 141 is located in the embedding yarn hook seat chamber of embedding yarn hook seat 14.

In the box body chamber 11 of box body 1 and the right-hand member corresponding to the length direction of box body 1 to be configured with level a pair wiring board socket 112 that position corresponds to each other towards the direction of lid 2, respectively offer a wiring board socket groove 1121 in the side faced each other of this pair wiring board socket 112.Lid 2 matches with box body 1, protect for covering box body chamber 11, lid 2 offers one group of (figure is shown with four) lid fixing hole 22 with space state, this group of lid fixing hole 22 lid hold-down screw 221(and lid fixing hole hold-down screw) be directly formed in box body 1 and fix towards the lid hold-down screw post 17a on the chamber wall of the side in box body chamber 11.Offer a shape and size and major tubercle signals collecting catch and to step down the consistent major tubercle signals collecting catch slot to make way 21a of groove 15a on lid 2 and corresponding to the step down position of groove 15a of aforesaid major tubercle signals collecting catch, and offer a shape and size and lesser tubercle signals collecting catch in the position of the groove 15b that steps down corresponding to lesser tubercle signals collecting catch and to step down the consistent lesser tubercle signals collecting catch slot to make way 21b of groove 15b.Major tubercle signals collecting catch groove 15a and the major tubercle signals collecting catch 21a complete catch that cooperates with the other to form of stepping down is stepped down vallecular cavity, equally, lesser tubercle signals collecting catch groove 15b and the lesser tubercle signals collecting catch slot to make way 21b complete catch that cooperates with the other to form of stepping down is stepped down vallecular cavity, and large and small tubercle signals collecting catch is stepped down, the shape of groove 15a, 15b, major tubercle signals collecting catch slot to make way 21a and lesser tubercle signals collecting catch slot to make way 21b is preferably consistent with size, the nicked form more particularly all taken the shape of the letter U.

Give a broken yarn signals collecting bar 3, one end of this broken yarn signals collecting bar 3 and the left end shown in Fig. 1, namely also the right-hand member of location status shown in Fig. 2 is configured to free end and towards aforementioned one end (left end of box body 1, Fig. 1 is example) stretch, and the other end of this broken yarn signal lever 3 (right-hand member of positive Fig. 1, the left end of Fig. 2) pivotable is connected on box body 1, and namely pivotable is connected to the right-hand member (right-hand member of Fig. 1) of box body 1.

Shown in figure, but the end, one end of aforementioned broken yarn signals collecting bar 3 be configured with the direction of a shape and embedding yarn hook seat 14 identical with the shape of aforesaid embedding yarn hook seat 14 contrary or claims to put upside down mutually be opening towards under the broken yarn signals collecting bar yarn hook 31 of (inverted U-shaped) of n font, this broken yarn signals collecting bar yarn hook 31 with also want below detail specifications bright to exempt from mechanism 9 of entrying relative.A broken yarn signals collecting lever arm 32 is configured with at the aforementioned other end of broken yarn signals collecting bar 3, at the end of this broken yarn signals collecting lever arm 32 and the side towards box body 1 is fixed with a tumbler shaft 321, this tumbler shaft 321 is insinuated in box body chamber 11 and is connected with broken yarn signal generation mechanism 5 pivotable that will describe below.

According to the reason that industry is known, there is a certain or a few one thread in the course of the work and be in the situation of temporarily stopping using in computer plain flat knitter, such as in the process of braiding color pattern fabric, when the coloured yarn of tool having in the yarn of different colours wherein or more when not needing to make a group participates in braiding, so the broken yarn signals collecting bar 3 of correspondence can be in holding state, that is broken yarn signals collecting bar 3 is made to be in positioning states, therefore in scheme provided by the invention, in aforementioned one end of box body 1 and extendedly on the outer wall of side, box body chamber 11 have a broken yarn signal lever limit flange 17b(Fig. 2 to show), and a flange hole 33 is offered in aforementioned one end (i.e. aforesaid free end) of broken yarn signals collecting bar 3, because this flange hole 33 is corresponding with broken yarn signal lever limit flange 17b, therefore when broken yarn signal lever limit flange 17b protrudes in flange hole 33, so broken yarn signals collecting bar 3 just limits, vice versa.

Give a circuit board 4, this circuit board 4 is arranged in box body chamber 11, is limited on lid hold-down screw post 17a by circuit board 4 while this lid 2 is fixing with aforesaid lid hold-down screw post 17a.Circuit board 4 is electrically connected with the computer controller of computer plain flat knitter, this circuit board 4 is provided with broken yarn signal response device 41, yarn major tubercle signal response device 42 and yarn lesser tubercle signal response device 43, broken yarn signal response device 41, yarn major tubercle signal response device 42 and yarn lesser tubercle signal response device 43 are tongue tube, concept about tongue tube can propose > see this patent of broken yarn alarm mechanism < of the yarn pretension regulator of invention patent mandate notification number CN102191625B(computer plain flat knitter by the applicant).Again, be provided with an alarm lamp 44 on the circuit board 4, the position that this alarm lamp 44 is corresponding to aforementioned indicator-lamp cover 121 is embedded in aforesaid alarm lamp caulking groove 16, is namely positioned in alarm lamp caulking groove 16.As shown in Figure 1, circuit board 4 is connected on terminal plate 451 by one group of circuit 45, and terminal plate 451 and the wiring board socket groove 1121 on aforesaid a pair wiring board socket 112 plug and coordinate, be electrically connected by the computer controller of the terminal plate plug terminal (not shown) that terminal plate 451 is drawn and aforementioned computer plain flat knitter.

The broken yarn signal generation mechanism 5 mentioned above correspond to box body 1 the aforementioned other end position and be arranged in box body chamber 11, and to connect with the tumbler shaft 321 of the broken yarn signals collecting lever arm 32 of broken yarn signals collecting bar and corresponding with aforesaid broken yarn signal response device 41.

Aforementioned broken yarn signal generation mechanism 5 preferably but not the structure be definitely limited to is as follows: comprise pivoted arm axle bed 51, broken yarn signal swing arm 52, torsion spring 53 and broken yarn signal picker 54, pivoted arm axle bed 51 is directly formed in the box body chamber 11 of aforementioned box body 1, and it is corresponding with aforesaid tumbler shaft 321, the middle part of broken yarn signal swing arm 52 offers the signal swing arm connecting hole 521 that a shape is preferably rectangle, the position of this signal swing arm connecting hole 521 is corresponding with aforesaid tumbler shaft 321, that is tumbler shaft 321 inserts in this signal swing arm connecting hole 521 after passing pivoted arm axle bed 51, and limit screw 3211 in the end swing arm of tumbler shaft 321 to limit.Preferably, the rectangular tumbler shaft connector 3212 of a shape of cross section is configured with at the end of tumbler shaft 321, this tumbler shaft connector 3212 is connected with signal swing arm connecting hole 521, and the restriction screw hole 3212 that swing arm limits in screw 3211 and tumbler shaft connector 3212 distal end faces is fixed.A torsion spring support foot 522 is configured with in one end of broken yarn signal swing arm 52 and towards the side of pivoted arm axle bed 51.Torsion spring 53 is nested with on the step of pivoted arm axle bed 51, one of them torsion spring pin supporting in a pair torsion spring pin of this torsion spring 53 is kept out shortly on torsion spring support foot 522, and another torsion spring pin in a pair torsion spring pin is bearing on the chamber wall in the box body chamber 11 of box body 1, as preferred scheme, on the supporting key seat 77 of the yarn major tubercle signals collecting mechanism 7 that also will describe in detail below also this another torsion spring pin can being bearing in.Broken yarn signal picker 54 is embedded in the other end of broken yarn signal swing arm 52, and corresponding with aforesaid broken yarn signal response device 41, and this broken yarn signal picker 54 is magnet steel.

In order to spacing to the swing arm 52 of aforementioned broken yarn signal, thus in box body chamber 11, a broken yarn signal swing arm limited post 111 is extended with in the position of the aforementioned other end corresponding to broken yarn signal swing arm 52, this broken yarn signal swing arm limited post 111 corresponds to the top of broken yarn signal swing arm 52, to limit the extreme position that broken yarn signal swing arm 52 is moved counterclockwise.

When the yarn 10 illustrated in figure ruptures, the broken yarn signals collecting bar yarn hook 31 previously having been carried the yarn signal signals collecting bar 3 poised by yarn 10 falls, thus aforementioned one end of broken yarn signals collecting bar 3 and aforesaid free end are had a down dip, and the tumbler shaft 321 of the broken yarn signals collecting lever arm 32 of the other end of broken yarn signals collecting bar 3 produces rotation (for state shown in Fig. 2) clockwise, because tumbler shaft 321 is connected with the signal swing arm connecting hole 521 of broken yarn signal swing arm 52 by the tumbler shaft connector 3212 of its end, therefore just make broken yarn signal swing arm 52 rotate under the active force of torsion spring 53 when tumbler shaft 321 rotates, make the broken yarn signal picker 54 that is embedded in broken yarn signal swing arm 52 corresponding with broken yarn signal response device 41, thus by broken yarn signal response device 41 perception broken yarn signal, and by broken yarn signal feedback to the computer controller of computer plain flat knitter, make the knitting mechanism break-off of computer plain flat knitter, work is entered again after the yarn 10 of fracture connects by workman.

When using of the present invention, when that is the present invention being installed on computer plain flat knitter, as long as by shown in the box body fixing feet 17c(Fig. 2 being formed in box body 1 right-hand member (shown in Fig. 1 state) bottom) and will be formed on lid 2 and lid fixing feet that position is corresponding with box body fixing feet 17c 23 is fixing with the upper lateral part of one end of computer plain flat knitter.

Please emphasis see Fig. 1, in order to adjust by yarn feeder or by the tension force of the yarn 10 that yarn dish is drawn, the present invention recommends there is a yarn pretension adjusting mechanism 6, and this yarn pretension adjusting mechanism 6 is arranged on aforesaid yarn pretension adjusting mechanism mount pad 13.

Above mentioned yarn pretension adjusting mechanism 6 preferably but not the structure be definitely limited to is as follows: comprise lever jack axle 61, in, outer yarn clipping dish 62, 63, yarn clipping dish twizzle 64, pretension regulating spring 65, pretension regulating spring seat 66 and pretension adjusting knob 67, one end and the aforesaid lever jack axle holder 131 of lever jack axle 61 are fixed, the other end is configured to horizontal boom end and is configured with lever jack male thread 611 on the surface of this horizontal boom end, in, outer yarn clipping dish 62, 63 are fitted to each other and are nested with on lever jack axle 61, yarn clipping dish twizzle 64 is nested with equally on lever jack axle 61, and be positioned at, outer yarn clipping dish 62, between 63, pretension regulating spring 65 and pretension regulating spring seat 66 are nested with on lever jack axle 61.As shown in Figure 1, one end of pretension regulating spring 65 is bearing on outer yarn clipping dish 63, and the other end is bearing on pretension regulating spring seat 66.Pretension adjusting knob 67 be positioned at the aforementioned other end of lever jack axle 61 end and with lever jack male thread 611 threaded engagement.Spring base damping tooth 661 is configured with towards a side surface of pretension adjusting knob 67 and around the circumferencial direction of pretension regulating spring seat 67 with radiation regimes at pretension regulating spring seat 66, and pretension adjusting knob 67 towards pretension regulating spring seat 66 a side surface and circumferencial direction around pretension adjusting knob 67 is configured with knob damping tooth 671 with radial patterning equally, knob damping tooth 671 is meshed with spring base damping tooth 661.As shown in Figure 1, the top of aforesaid yarn clipping dish twizzle 64 is configured with the yarn clipping dish twizzle guide inclined-plane 642 for importing to for yarn in yarn clipping dish twizzle chamber 641, and wherein, yarn clipping dish twizzle chamber 641 is corresponding with aforesaid embedding yarn hook 141.

The yarn major tubercle signals collecting mechanism 7 mentioned above is positioned at the left side of aforesaid broken yarn signal generation mechanism 5, the left side of this yarn major tubercle signals collecting mechanism 7 is yarn lesser tubercle signals collecting mechanism 8, and that is yarn major tubercle signals collecting mechanism 7 is between yarn lesser tubercle signals collecting mechanism 8 and broken yarn signal generation mechanism 5.

Refer to Fig. 3, and continue composition graphs 1, Fig. 2 and Fig. 5, yarn major tubercle signals collecting mechanism 7 is for gathering the major tubercle on yarn 10, comprise adjustment knob 71, adjustment screw shaft 72, adjustment spring 73, major tubercle catch holder 74, holder support column 75, fulcrum post 76, supporting key seat 77, major tubercle signals collecting swing arm 78 and reset tension spring 79, adjustment knob 71 is positioned at the side of box body 1 back to box body chamber 11, the same side is in aforementioned broken yarn signals collecting bar 3, on box body 1 and correspond to adjustment knob 71 position be configured with a knob base 17d, adjustment knob 71 coordinates with this knob base 17d pivotable, a rotation axis block set 18 is configured with towards the side in box body chamber 11 and corresponding to the position of knob base 17d at box body 1, and be configured with a knob axle sleeve 711 at adjustment knob 71 towards the middle position of the side of box body 1, the hole wall of the rotation axis trepanning 7111 of this knob axle sleeve 711 respectively offers an adjustment screw shaft flange hole 71111 in the position of correspond to each other (facing each other), knob axle sleeve 711 is inserted in the axle sleeve bore 181 of sleeve block 18.Adjustment screw shaft 72 is configured with a pair position screw shaft flange 722 corresponding with adjusting screw shaft flange hole 71111 towards one end of adjustment knob 71, this a pair screw shaft flange 722 protrudes in adjustment screw shaft flange hole 71111, thus is realized one end of adjustment screw shaft 72 and adjust the connection rotated.Preferably, be configured with at the nearly middle part of length direction of adjustment screw shaft 72 one be raised in the surface of adjustment screw shaft 72 for the nut sleeve position-arresting disk 723 spacing to nut regulating sleeve 721, nut regulating sleeve 72 is by adjustment screw shaft screw thread 724 threaded engagement of its regulating sleeve screw thread 7213 with the other end of adjustment screw shaft 72, namely this nut regulating sleeve 721 is configured with an adjustment spring-loaded chamber 7211 towards the side of adjustment knob 71 towards the side of adjustment spring 73, and on the outer wall of nut regulating sleeve 721, be configured with a pair nut sleeve shift fork 7212, region between this pair nut sleeve shift fork 7212 or claim space to be configured to fixed axis to step down chamber 72121.Adjustment spring 73 is nested with on adjustment screw shaft 72, one end of this adjustment spring 73 is bearing in the side of box body 1 towards box body chamber 11, and the other end probes in described adjustment spring-loaded chamber 7211 and be bearing in box body 1 towards on the chamber wall of the side in box body chamber 11, more precisely be bearing in aforesaid rotation axis block set 18 (namely the present embodiment is), the other end of adjustment spring 73 is insinuated into and adjusts in spring-loaded chamber 7211 and be bearing on nut regulating sleeve 721, is namely bearing on nut regulating sleeve 721 by inserting adjustment spring-loaded chamber 7211.Major tubercle catch holder 74 is nested with on major tubercle catch holder pivotal axis 741 in the position in chamber 72121 of stepping down corresponding to aforesaid holder axle rotationally, and this major tubercle catch holder pivotal axis 741 is directly formed in box body 1 towards on the chamber wall of the side in box body chamber 11 with horizontal boom state, and the holder axle be stretched over is stepped down in chamber 72121, a shake-up pin 742 is configured with on this major tubercle catch holder pivotal axis 741 and corresponding to the position of major tubercle signals collecting swing arm 78, and be fixed with a major tubercle catch 743(in the bottom of major tubercle catch holder 74 with longitudinal cantilever position and also can claim yarn major tubercle catch) upper end, and the lower end of this major tubercle catch 743 is aforesaidly stretched over outside box body chamber 11 by the step down position of vallecular cavity that groove 15a and major tubercle catch slot to make way 21a forms jointly of major tubercle signals collecting catch corresponding to, and match with exempting from of also will describing in detail below mechanism 9 of entrying or claim with the mechanism 9 that exempts to entry corresponding, the yarn 10 coming from aforementioned yarn pretension adjusting mechanism 6 is by way of the major tubercle catch gap that major tubercle catch 743 and exempting from is entried between mechanism 9 and stopped by major tubercle catch 743 when yarn 10 existing major tubercle, major tubercle catch holder 74 towards holder support column 75 the narrow contracting in one end and be configured with a supporting head 744.Supporting key seat 77 is directly formed in box body 1 towards on the wall body (i.e. chamber wall) of the side in box body chamber 11 with horizontal boom state, and be configured with a fulcrum post mating groove 771 at this supporting key seat 77 towards the length direction of the side of fulcrum post 76, holder support column 75 has a tube chamber, a support spring 751 is provided with in this tube chamber, fulcrum post 76 to insert towards one end of holder support column 75 in the tube chamber of holder support column 75 and contacts with support spring 751, namely be bearing on support spring 751, and fulcrum post 76 is bearing in fulcrum post mating groove 771 towards the one end of supporting key seat 77.The end face of holder support column 75 towards one end of major tubercle catch holder 74 is arranged with a supporting head and coordinates nest 752, aforesaid supporting head 744 probes into and is bearing in supporting head and coordinates in nest 752.The middle part of major tubercle signals collecting swing arm 78 is arranged on swing arm pivotal axis 781 rotationally, this swing arm pivotal axis 781 is directly formed in box body 1 towards on the wall body of the side in box body chamber 11, one end of major tubercle signals collecting swing arm 78 is corresponding with aforesaid shake-up pin 742, and the other end is connected with one end of reset tension spring 79, the other end of reset tension spring 79 is fixed on reset tension spring axle 791, and reset tension spring axle 791 is directly formed in box body 1 towards on the wall body (i.e. chamber wall) of the side in box body chamber 11, a major tubercle signal picker seat 782 is extended with at the middle part of major tubercle signals collecting swing arm 78 and towards the direction of yarn lesser tubercle signals collecting mechanism 8, a major tubercle signal picker 7821 is equipped with on this major tubercle signal picker seat 782 and towards the side of aforementioned circuit plate 4, this major tubercle signal picker 7821 is corresponding with aforesaid yarn major tubercle signal response device 42.In the present embodiment, major tubercle signal picker 7821 is magnet steel.Aforesaid major tubercle catch 743 is corresponding with embedding yarn hook 141.

The yarn lesser tubercle signal picker 8 mentioned above preferably but not the structure be limited to is as follows: comprise adjusting knob 81, adjusting screw(rod) axle 82, regulating spring 83, lesser tubercle catch holder 84, lesser tubercle signals collecting swing arm 85 and back-moving spring 86, adjusting knob 81 is positioned at the side of box body 1 back to described box body chamber 11, be in the same side with the aforesaid position of adjustment knob 71 on box body 1, and adjusting knob 81 is identical with the fit system of box body 1 with adjustment knob 71 with the fit system of box body 1.Adjusting screw(rod) axle 82 is connected towards one end of adjusting knob 81 with adjusting knob 81, because the structure of adjusting screw(rod) axle 82 is identical with aforementioned adjustment screw shaft 72, therefore the connected mode of itself and adjusting knob 81 is as to adjusting the description of screw shaft 72 with the connection of adjustment knob 71.Be equipped with a nut sleeve 821 at the other end of adjusting screw(rod) axle 82 with thread fiting mode, this nut sleeve 821 coordinates as the description of nut regulating sleeve 721 with adjustment screw shaft 72 with adjusting screw(rod) axle 82.Regulating spring supporting cavity 8211 is configured with towards the side of regulating spring 83 in nut sleeve 821, the structure of regulating spring supporting cavity 8211 and function identical with aforesaid adjustment spring-loaded chamber 7211, the outer wall of nut sleeve 821 is configured with the pusher dog 8212 being equivalent to aforementioned nut cover shift fork 7212 for a pair, and the space between a pair pusher dog 8212 is configured to fixed axis and steps down cavity 82121.Regulating spring 83 is nested with on adjusting screw(rod) axle 82, and one end of this regulating spring 83 is bearing in box body 1 towards on the wall body of side, box body chamber 11, and the other end probes into regulating spring supporting cavity 8211 and is bearing in nut sleeve 821.It should be noted that: because the support pattern of regulating spring 83 is identical with adjustment spring 73, therefore applicant no longer launches explanation to it.Lesser tubercle catch holder 84 is nested with on lesser tubercle catch holder pivotal axis 841 in the position of cavity 82121 of stepping down corresponding to fixed axis rotationally, and this lesser tubercle catch holder pivotal axis 841 is directly formed in box body 1 on the wall body of the side in box body chamber 11 is stretched over fixed axis and steps down in cavity 82121, again, on this lesser tubercle catch holder 84 and corresponding to the position of lesser tubercle signals collecting swing arm 85, a haptic element 842 is configured with.And, be fixed with the upper end of a lesser tubercle catch 843 in the bottom of lesser tubercle catch holder 84 with longitudinal cantilever position, and the lower end of lesser tubercle catch 843 correspond to by aforesaid lesser tubercle signals collecting catch step down the position between groove 15b with lesser tubercle catch slot to make way 21b or claims the position of the vallecular cavity jointly formed be stretched over box body chamber 11 outward and with exempt to entry mechanism 9 and embedding yarn hook 141 corresponding.The yarn 10 coming from yarn pretension adjusting mechanism 6 passes through behind the lesser tubercle catch gap that major tubercle catch 743 and exempting from is entried between mechanism 9 from the lesser tubercle catch gap that lesser tubercle catch 843 and exempting from is entried between mechanism 9, in this process when yarn 10 exists lesser tubercle, then responded by lesser tubercle catch 843, namely drive lesser tubercle catch 843 by lesser tubercle.The middle part of lesser tubercle signals collecting swing arm 85 is arranged on swing arm hub setting axle 851 rotationally, this swing arm hub setting axle 851 is directly formed in box body 1 towards on the wall body of side, box body chamber 11, one end of lesser tubercle signals collecting swing arm 85 is corresponding with aforesaid haptic element 842, and the other end is connected with one end of back-moving spring 86, the other end of back-moving spring 86 is fixed on back-moving spring axle 861, this back-moving spring axle 861 is directly formed in box body 1 towards on the wall body of side, box body chamber 11, a lesser tubercle signal picker seat 852 is extended with at the middle part of lesser tubercle signals collecting swing arm 85 and towards the side of aforementioned indicator-lamp cover 121, a lesser tubercle signal picker 8521 filled the post of by magnet steel is embedded with on this lesser tubercle signal picker seat 852 and towards the side of aforementioned circuit plate 4, this lesser tubercle signal picker 8521 is corresponding with aforesaid yarn lesser tubercle signal response device 43.The lower end of lesser tubercle catch 843 is corresponding with embedding yarn hook 141, and corresponding with major tubercle catch 743.

Please see Fig. 1 by emphasis, exempting from of repeatedly mentioning above mechanism 9 of entrying is fixed towards the below of the side of lid 2 with aforementioned box body 1, and match with the large and small tubercle signal picker 8 of yarn, more precisely match with aforesaid large and small tubercle catch 743,843 simultaneously. simultaneously

The aforesaid mechanism 9 that exempts to entry preferably but not the structure be definitely limited to is as follows: comprise and exempt from threading board 91, by yarn plate 92 with draw yarn spoon 93, exempt from threading board 91 to be fixed by fixed bolt 917 and the box body stud 17e on box body 1, specifically adopt stud screw 9171 to be fixed with box body stud 17e by hold-down screw post 917.Exempt from threading board 91 length direction end, one end and be configured with one towards the side of box body 1 and draw yarn spoon seat 911, draw yarn spoon 93 and insert and be embedded in this and draw on yarn spoon seat 911, and corresponding with aforesaid embedding yarn hook 141.Be fixed on by yarn plate 92 and exempt from the side of threading board 91 towards box body 1, and be positioned at the middle part of the length direction of exempting from threading board 91, should one end of yarn plate 92 be leaned on and be configured with a lesser tubercle catch fitting projection 921 in the position corresponding to aforementioned lesser tubercle catch 843, and lean on the other end of yarn plate 92 and be configured with a major tubercle catch fitting projection 922 in the position corresponding to aforementioned major tubercle catch 743, also form a yarn pretension adjusting mechanism at the described other end of the length direction of exempting from threading board 91 to step down chamber 912, exempt from threading board 91 towards the side of box body 1 and correspond in the major tubercle catch gap be configured with by the position above yarn plate 92 for yarn 10 being imported between major tubercle catch fitting projection 922 and major tubercle catch 743 simultaneously and import in the lesser tubercle catch gap between lesser tubercle catch fitting projection 921 and lesser tubercle catch 843 by yarn plate guide inclined-plane 913, and to step down the top of chamber wall in chamber 912 and the yarn pretension adjusting mechanism guide inclined-plane 914 be configured with towards the side of box body 1 in the yarn clipping dish twizzle chamber 641 of the yarn clipping dish twizzle 64 for yarn being imported aforementioned yarn pretension adjusting mechanism 6 at yarn pretension adjusting mechanism.By yarn plate guide inclined-plane 913 and yarn pretension adjusting mechanism guide inclined-plane 914 incline direction all towards under.Wherein, the aforementioned major tubercle catch gap for stoping the major tubercle on yarn 10 to pass through is maintained between major tubercle catch 743 and major tubercle catch fitting projection 922, and between lesser tubercle catch 843 and lesser tubercle catch fitting projection 921, maintaining the lesser tubercle catch gap that the lesser tubercle on yarn 10 is scraped, major tubercle catch gap is greater than lesser tubercle catch gap.

Preferably, aforesaid draw yarn spoon 93 is configured with one for yarn is imported to draw yarn spoon 93 to draw in yarn spoon chamber 931 and entry deterrence to be escaped in what draw yarn spoon chamber 931 to the yarn 10 drawn in yarn spoon chamber 931 and is drawn yarn spoon guide sealing sheet 932 simultaneously.Because the structure of drawing yarn spoon 93 is identical with aforesaid embedding yarn hook 141, therefore applicant its detailed description is omitted.Shown in figure, draw yarn spoon 93 corresponding with embedding yarn hook 141.

Preferably, one is being configured with by yarn plate earthing pin holder 915 by the position of yarn plate 92 exempting from threading board 91 towards the side of box body 1 and corresponding to, grounding leg fixed leg 9151 is configured with in this seat chamber by yarn plate earthing pin holder 915, by yarn plate 92 being extended with one by yarn plate earthing pin 923, should fix by yarn plate earthing pin 923 and grounding leg fixed leg 9151.

And then preferably, to exempt from threading board 91 aforesaid and be configured with a pair by yarn plate support column 916 by the position of yarn plate 92 corresponding to, this a pair by one of them in yarn plate support column 916 by yarn plate support column and the side contacts of aforementioned lesser tubercle catch fitting projection 921 back to lesser tubercle catch 813, and a pair is leaned on yarn plate support column and aforesaid major tubercle catch fitting projection 922 back to a side contacts of major tubercle catch 743 by another in yarn plate support column 916.

More and preferably, lever jack axle 61 is connected with a lever jack axle earth lead 612, the box body earth lead 19 that this lever jack axle earth lead 612 is laid on box body 1 is electrically connected, and is electrically connected by line plate earthing pin 923 with aforesaid, and box body earth lead 19 and circuit board 4 are electrically connected.

When yarn 10 being introduced yarn pretension adjusting mechanism 6, major tubercle catch gap between major tubercle catch 743 and major tubercle catch fitting projection 922, lesser tubercle catch gap between lesser tubercle catch 843 and lesser tubercle catch fitting projection 921, time in the embedding yarn hook chamber 1411 of drawing yarn spoon chamber 931 and embedding yarn hook 141 of drawing yarn spoon 93, as long as so yarn 10 is in exceptionally straight state by its both hands by operator, and under the aforesaid state leaning on yarn plate guide inclined-plane 913 and yarn pretension adjusting mechanism guide inclined-plane 914 of aligning, yarn 10 is strangled downwards and draw, thus yarn 10 is entered simultaneously be positioned at, outer yarn clipping dish 62, the yarn clipping dish twizzle chamber 641 of the yarn clipping dish twizzle 64 between 63, aforesaid major tubercle catch gap, lesser tubercle catch gap, draw in the embedding yarn hook chamber 1411 of drawing yarn spoon chamber 931 and embedding yarn hook 141 of yarn spoon 93, lift outstanding by yarn 10 pairs of broken yarn signals collecting bar yarn hooks 31 simultaneously.In above process, owing to need not connect yarn 10 in the mode of trying to make a match, thus there is the technique effect referred in the superincumbent technique effect hurdle of applicant.

Due to the structure of yarn large and small tubercle signals collecting mechanism 7,8 and operation principle substantially identical with CN10288705A, CN10288706A and CN10288707A that applicant mentions in background technology hurdle, therefore applicant repeats no more.

Claims (10)

1. a kind of broken signal trigger mechanism for yarn of device for adjusting tension of yarn, described device for adjusting tension of yarn comprises the box body (1) being configured with box body chamber (11), one end of this box body (1) is configured with an indicator-lamp cover chamber (12), and is extended with a yarn pretension adjusting mechanism mount pad (13) in the below of the other end of this box body (1); One for covering the lid (2) protected to described box body chamber (11), this lid (2) matches with box body (1); One circuit board (4), this circuit board (4) is arranged in described box body chamber (11), and is electrically connected by the computer controller of circuit and computer plain flat knitter; One broken yarn signal generation mechanism (5), this broken yarn signal generation mechanism (5) is arranged in described box body chamber (11) in the position of the described other end corresponding to described box body (1), and corresponding with described circuit board (4); One yarn pretension adjusting mechanism (6), this yarn pretension adjusting mechanism (6) is arranged on described yarn pretension adjusting mechanism mount pad (13); Be arranged on described box body (1) box body chamber (11) middle part and yarn major tubercle signals collecting mechanism (7) corresponding with described circuit board (4) and yarn lesser tubercle signals collecting mechanism (8), yarn major tubercle signals collecting mechanism (7) is positioned between yarn lesser tubercle signals collecting mechanism (8) and described broken yarn signal generation mechanism (5); one exempts from mechanism (9) of entrying, this mechanism (9) that exempts to entry is fixed towards the below of the side of described lid (2) with described box body (1), and match with described yarn major tubercle signals collecting mechanism (7) and yarn lesser tubercle signals collecting mechanism (8) simultaneously, in the end of described one end of described box body (1) and the embedding yarn hook seat (14) that takes the shape of the letter U of the shape that the below being positioned at this end is extended with an opening upwards, the embedding yarn hook (141) that the shape that this embedding yarn hook seat (14) is embedded with an opening upwards takes the shape of the letter U, it is characterized in that described broken signal trigger mechanism for yarn comprises a broken yarn signals collecting bar (3), one end of this broken yarn signals collecting bar (3) is configured to free end and described one end towards described box body (1) is stretched, and the other end pivotable of this broken yarn signals collecting bar (3) is connected to the described other end of box body (1), and be connected with described broken yarn signal generation mechanism (5), wherein: the end, described one end of described broken yarn signals collecting bar (3) be configured with that a shape is identical with described embedding yarn hook seat (14) and position is corresponding but opening towards under shape be broken yarn signals collecting bar yarn hook (31) of n shape, this broken yarn signals collecting bar yarn hook (31) is also corresponding with the described mechanism (9) that exempts to entry, described broken yarn signal generation mechanism (5) comprises pivoted arm axle bed (51), broken yarn signal swing arm (52), torsion spring (53) and broken yarn signal picker (54), pivoted arm axle bed (51) is directly formed in the box body chamber (11) of described box body (1), the middle part of broken yarn signal swing arm (52) offers a signal swing arm connecting hole (521), the position that this signal swing arm connecting hole (521) is corresponding to described pivoted arm axle bed (51) is connected with the described other end of described broken yarn signals collecting bar (3), and a torsion spring support foot (522) is configured with in one end of broken yarn signal swing arm (52), torsion spring (53) is nested with on pivoted arm axle bed (51), one of them torsion spring pin in a pair torsion spring pin of this torsion spring (53) is bearing on described torsion spring support foot (522), and another torsion spring pin in a pair torsion spring pin is bearing on the chamber wall in box body chamber (11) of described box body (1), broken yarn signal picker (54) is embedded in the other end of broken yarn signal swing arm (52), and it is corresponding with described circuit board (4).

2. the broken signal trigger mechanism for yarn of device for adjusting tension of yarn according to claim 1, to it is characterized in that in described box body chamber (11) and to be extended with broken yarn signal swing arm limited post (111) in the position of the described other end corresponding to broken yarn signal swing arm (52), broken yarn signals collecting lever arm (32) is configured with at the described other end of described broken yarn signals collecting bar (3), at the end of this broken yarn signals collecting lever arm (32) and the side towards box body (1) is fixed with a tumbler shaft (321), this tumbler shaft (321) probes into described pivoted arm axle bed (51) and coordinates with pivoted arm axle bed (51) pivotable, described signal swing arm connecting hole (521) is fixed with the end of tumbler shaft (321), and limit screw (3211) by the swing arm be disposed in the distal end faces of tumbler shaft (321) to limit.

3. the broken signal trigger mechanism for yarn of device for adjusting tension of yarn according to claim 1, it is characterized in that on the lower edge of described box body (1) and offer a major tubercle signals collecting catch and to step down groove (15a) and offer a lesser tubercle signals collecting catch in the position corresponding to described yarn lesser tubercle signals collecting mechanism (8) and to step down groove (15b) corresponding to the position of described yarn major tubercle signals collecting mechanism (7), upper and offer one and to step down major tubercle signals collecting catch slot to make way (21a) that groove (15a) matches and offer in the position of groove (15b) of stepping down corresponding to described lesser tubercle signals collecting catch and to step down lesser tubercle signals collecting catch slot to make way (21b) that groove (15b) matches with lesser tubercle signals collecting catch with major tubercle signals collecting catch corresponding to the step down position of groove (15a) of described major tubercle signals collecting catch at described lid (2), the described mechanism (9) that exempts to entry groove (15a) and lesser tubercle signals collecting catch groove (15b) of stepping down of simultaneously stepping down with major tubercle signals collecting catch is corresponding, greatly, lesser tubercle signals collecting catch is stepped down groove (15a, 15b), major tubercle signals collecting catch slot to make way (21a) and lesser tubercle signals collecting catch slot to make way (21b) all communicate with described box body chamber (11), described circuit board (4) is provided with broken yarn signal response device (41), yarn major tubercle signal response device (42) and yarn lesser tubercle signal response device (43), corresponding with the described broken yarn signal generation mechanism (5) that the described other end of described broken yarn signals collecting bar (3) connects and broken yarn signal response device (41), yarn major tubercle signals collecting mechanism (7) is corresponding with yarn major tubercle signal response device (42), yarn lesser tubercle signals collecting mechanism (8) is corresponding with yarn lesser tubercle signal response device (43), upper at described yarn pretension adjusting mechanism mount pad (13) and side towards described yarn pretension adjusting mechanism (6) is configured with a lever jack axle holder (131), yarn pretension adjusting mechanism (6) is arranged on this lever jack axle holder (131), the direction of described embedding yarn hook (141) is towards upper, and the direction of described broken yarn signals collecting bar yarn hook (31) towards under.

4. the broken signal trigger mechanism for yarn of device for adjusting tension of yarn according to claim 3, it is characterized in that described yarn pretension adjusting mechanism (6) comprises lever jack axle (61), in, outer yarn clipping dish (62, 63), yarn clipping dish twizzle (64), pretension regulating spring (65), pretension regulating spring seat (66) and pretension adjusting knob (67), one end of lever jack axle (61) and described lever jack axle holder (131) are fixed, the other end is configured to horizontal boom end and is also configured with lever jack male thread (611) on surface, in, outer yarn clipping dish (62, 63) be fitted to each other and be nested with on lever jack axle (61), yarn clipping dish twizzle (64) is nested with at lever jack axle (61) upper and be positioned at, outer yarn clipping dish (62, 63) between, pretension regulating spring (65) and pretension regulating spring seat (66) are nested with on lever jack axle (61), wherein, one end of pretension regulating spring (65) is bearing on outer yarn clipping dish (63), and the other end is bearing on pretension regulating spring seat (66), pretension adjusting knob (67) be positioned at lever jack axle (61) the described other end and with lever jack male thread (611) threaded engagement, wherein: be configured with spring base damping tooth (661) at pretension regulating spring seat (66) towards a side surface of pretension adjusting knob (67), and pretension adjusting knob (67) is configured with knob damping tooth (671) towards a side surface of pretension regulating spring seat (66), knob damping tooth (671) matches with spring base damping tooth (661), the top of described yarn clipping dish twizzle (64) is configured with yarn clipping dish twizzle guide inclined-plane (642) for importing to for yarn in yarn clipping dish twizzle chamber (641), described yarn clipping dish twizzle chamber (641) is corresponding with described embedding yarn hook (141).

5. the broken signal trigger mechanism for yarn of device for adjusting tension of yarn according to claim 3, it is characterized in that described yarn major tubercle signals collecting mechanism (7) comprises adjustment knob (71), adjustment screw shaft (72), adjustment spring (73), major tubercle catch holder (74), holder support column (75), fulcrum post (76), supporting key seat (77), major tubercle signals collecting swing arm (78) and reset tension spring (79), adjustment knob (71) is positioned at the side of described box body (1) back to described box body chamber (11), adjustment screw shaft (72) is connected towards one end of adjustment knob (71) with described adjustment knob (71), and the other end adjusting screw shaft (72) is equipped with a nut regulating sleeve (721) with thread fiting mode, this nut regulating sleeve (721) is configured with an adjustment spring-loaded chamber (7211) towards the side of adjustment spring (73), and on the outer wall of nut regulating sleeve (721), be configured with a pair nut sleeve shift fork (7212), region between this pair nut sleeve shift fork (7212) is configured to holder axle and steps down chamber (72121), adjustment spring (73) is nested with in adjustment screw shaft (72), one end of this adjustment spring (73) is bearing in the side of box body (1) towards box body chamber (11), and the other end probes in described adjustment spring-loaded chamber (7211) and be bearing on nut regulating sleeve (721), major tubercle catch holder (74) is nested with on major tubercle catch holder pivotal axis (741) in the position in chamber (72121) of stepping down corresponding to described holder axle rotationally, and this major tubercle catch holder pivotal axis (741) is directly formed in box body (1) towards on the wall body of the side of box body chamber (11), and probing into described holder axle steps down in chamber (72121), go up at this major tubercle catch holder pivotal axis (741) and be configured with a shake-up pin (742) in the position corresponding to major tubercle signals collecting swing arm (78), and be fixed with the upper end of a major tubercle catch (743) with longitudinal cantilever position in the bottom of major tubercle catch holder (74), and the lower end of this major tubercle catch (743) is being stretched over described box body chamber (11) outward corresponding to the described major tubercle signals collecting catch position of stepping down between groove (15a) and described major tubercle catch slot to make way (21a), and it is corresponding with the described mechanism (9) that exempts to entry, the yarn coming from described yarn pretension adjusting mechanism (6) is by way of described major tubercle catch (743) and to exempt to entry between mechanism (9) and to be stopped by major tubercle catch (743) when yarn existing major tubercle, major tubercle catch holder (74) towards holder support column (75) the narrow contracting in one end and be configured with a supporting head (744), supporting key seat (77) is directly formed in box body (1) towards in a sidewall bodies of box body chamber (11) with horizontal boom state, and be configured with a fulcrum post mating groove (771) at this supporting key seat (77) towards the length direction of the side of fulcrum post (76)Holder support column (75) has a tube chamber, a support spring (751) is provided with in this tube chamber, fulcrum post (76) towards holder support column (75) one end insert holder support column (75) described tube chamber in and contact with support spring (751), and fulcrum post (76) is bearing in fulcrum post mating groove (771) towards the one end of supporting key seat (77), the end face of holder support column (75) towards one end of major tubercle catch holder (74) is arranged with a supporting head and coordinates nest (752), described supporting head (744) probes into supporting head and coordinates in nest (752), the middle part of major tubercle signals collecting swing arm (78) is arranged on swing arm pivotal axis (781) rotationally, this swing arm pivotal axis (781) is directly formed in box body (1) towards on the wall body of the side of box body chamber (11), one end of major tubercle signals collecting swing arm (78) is corresponding with described shake-up pin (742), and the other end is connected with one end of reset tension spring (79), the other end of reset tension spring (79) is fixed on reset tension spring axle (791), and reset tension spring axle (791) is directly formed in box body (1) towards on the wall body of the side of box body chamber (11), a major tubercle signal picker seat (782) is extended with at the middle part of major tubercle signals collecting swing arm (78) and towards the direction of described yarn lesser tubercle signals collecting mechanism (8), upper at this major tubercle signal picker seat (782) and side towards described circuit board (4) is equipped with a major tubercle signal picker (7821), this major tubercle signal picker (7821) is corresponding with described yarn major tubercle signal response device (42), described major tubercle catch (743) is corresponding with described embedding yarn hook (141), what be positioned on described box body (1) is greatly described, lesser tubercle signals collecting catch slot to make way (15a, 15b) and major tubercle signals collecting catch slot to make way (21a) be positioned on described lid (2) and lesser tubercle signals collecting catch slot to make way (21b) be rectangular channel.

6. the broken signal trigger mechanism for yarn of device for adjusting tension of yarn according to claim 5, it is characterized in that described yarn lesser tubercle signal picker (8) comprises adjusting knob (81), adjusting screw(rod) axle (82), regulating spring (83), lesser tubercle catch holder (84), lesser tubercle signals collecting swing arm (85) and back-moving spring (86), adjusting knob (81) is positioned at the side of described box body (1) back to described box body chamber (11), adjusting screw(rod) axle (82) is connected towards one end of adjusting knob (81) with adjusting knob (81), a nut sleeve (821) is equipped with thread fiting mode at the other end of adjusting screw(rod) axle (82), this nut sleeve (821) is configured with regulating spring supporting cavity (8211) towards the side of regulating spring (83), and on the outer wall of nut sleeve (821), be configured with a pair pusher dog (8212), space between a pair pusher dog (8212) is configured to fixed axis and steps down cavity (82121), regulating spring (83) is nested with on adjusting screw(rod) axle (82), and one end of this regulating spring (83) is bearing in described box body (1) towards on the wall body of box body chamber (11) side, and the other end probes into regulating spring supporting cavity (8211) and is bearing in nut sleeve (821), lesser tubercle catch holder (84) is nested with on lesser tubercle catch holder pivotal axis (841) in the position of cavity (82121) of stepping down corresponding to described fixed axis rotationally, and this lesser tubercle catch holder pivotal axis (841) is directly formed in box body (1) on the wall body of the side of box body chamber (11) is stretched over fixed axis and steps down cavity (82121), go up at this lesser tubercle catch holder (84) and be configured with a haptic element (842) in the position corresponding to lesser tubercle signals collecting swing arm (85), and be fixed with the upper end of a lesser tubercle catch (843) with cantilever position in the bottom of lesser tubercle catch holder (84), and the lower end of lesser tubercle catch (843) is being stretched over described box body chamber (11) outward corresponding to the described lesser tubercle signals collecting catch position of stepping down between groove (15b) and described lesser tubercle catch slot to make way (21b), and with described exempt to entry mechanism (9) and described embedding yarn hook (141) corresponding, the yarn coming from described yarn pretension adjusting mechanism (6) by way of described major tubercle catch (743) and exempt to entry after between mechanism (9) from lesser tubercle catch (843) and exempt to entry between mechanism (9) by and responded by lesser tubercle catch (843) when yarn exists lesser tubercle, exempt to entry between mechanism (9) by and responded by lesser tubercle catch (843) when yarn existing lesser tubercle, the middle part of lesser tubercle signals collecting swing arm (85) is arranged on swing arm hub setting axle (851) rotationally, this swing arm hub setting axle (851) is directly formed in box body (1) towards on the wall body of box body chamber (11) side, one end of lesser tubercle signals collecting swing arm (85) is corresponding with described haptic element (842), and the other end is connected with one end of back-moving spring (86), the other end of back-moving spring (86) is fixed on back-moving spring axle (861), this back-moving spring axle (861) is directly formed in box body (1) towards on the wall body of box body chamber (11) side, a lesser tubercle signal picker seat (852) is extended with at the middle part of lesser tubercle signals collecting swing arm (85), upper at this lesser tubercle signal picker seat (852) and side towards described circuit board (4) is embedded with a lesser tubercle signal picker (8521), this lesser tubercle signal picker (8521) is corresponding with described yarn lesser tubercle signal response device (43), described lesser tubercle catch (843) is corresponding with described embedding yarn hook (141), and it is corresponding with described major tubercle catch (743).

7. the broken signal trigger mechanism for yarn of device for adjusting tension of yarn according to claim 6, it is characterized in that the described mechanism (9) that exempts to entry comprises and exempt from threading board (91), by yarn plate (92) with draw yarn spoon (93), exempt from threading board (91) to fix with described box body (1), exempt from the end, one end of the length direction of threading board (91) at this and be configured with one towards the side of box body (1) and draw yarn spoon seat (911), draw yarn spoon (93) to be plugged on this to draw yarn spoon seat (911) upper and corresponding with described embedding yarn hook (141), be fixed on by yarn plate (92) and exempt from threading board (91) towards the side of box body (1) and be positioned at the middle part of the length direction of exempting from threading board (91), should one end of yarn plate (92) be leaned on and be configured with a lesser tubercle catch fitting projection (921) in the position corresponding to described lesser tubercle catch (843), and lean on the other end of yarn plate (92) and be configured with a major tubercle catch fitting projection (922) in the position corresponding to described major tubercle catch (743), be configured with a yarn pretension adjusting mechanism at the other end of the length direction of exempting from threading board (91) to step down chamber (912), to be configured with one towards the side of box body (1) and in the position corresponding to the described top by yarn plate (92) and to lean on yarn plate guide inclined-plane (913) for being imported to by yarn simultaneously between major tubercle catch fitting projection (922) and major tubercle catch (743) and between lesser tubercle catch fitting projection (921) and lesser tubercle catch (843) exempting from threading board (91), and to step down the top of chamber wall in chamber (912) and the yarn pretension adjusting mechanism guide inclined-plane (914) be configured with towards the side of box body (1) for the yarn pretension adjusting mechanism (6) described in yarn is imported at yarn pretension adjusting mechanism, the described incline direction by yarn plate guide inclined-plane (913) and yarn pretension adjusting mechanism guide inclined-plane (914) all towards under, wherein: between described major tubercle catch (743) and major tubercle catch fitting projection (922), maintain the major tubercle catch gap for stoping the major tubercle on yarn to pass through, and between described lesser tubercle catch (843) and lesser tubercle catch fitting projection (921), maintain the lesser tubercle catch gap that the lesser tubercle on yarn is scraped, major tubercle catch gap is greater than lesser tubercle catch gap.

8. the broken signal trigger mechanism for yarn of device for adjusting tension of yarn according to claim 7, it is characterized in that described draw yarn spoon (93) is configured with one for yarn is imported to draw yarn spoon (93) to draw in yarn spoon chamber (931) and entry deterrence to be escaped in what draw yarn spoon chamber (931) to the yarn drawn in yarn spoon chamber (931) and is drawn yarn spoon guide sealing sheet (932) simultaneously; Described embedding yarn hook (141) is configured with one for yarn is imported to embedding yarn hook (141) embedding yarn hook chamber (1411) in and simultaneously entry deterrence escape in embedding yarn hook guide sealing sheet (1412) of embedding yarn hook chamber (1411) to the yarn in embedding yarn hook chamber (1411).

9. the broken signal trigger mechanism for yarn of device for adjusting tension of yarn according to claim 7, it is characterized in that being configured with one by yarn plate earthing pin holder (915) at described threading board (91) of exempting from towards the side of described box body (1) and corresponding to the described position by yarn plate (92), grounding leg fixed leg (9151) is configured with in this seat chamber by yarn plate earthing pin holder (915), line plate earthing pin (923) is being leaned on by line plate (92) being extended with one, should fix by line plate earthing pin (923) and grounding leg fixed leg (9151).

10. the broken signal trigger mechanism for yarn of device for adjusting tension of yarn according to claim 7, it is characterized in that going up at described threading board (91) of exempting from and being configured with a pair by yarn plate support column (916) corresponding to the described position by yarn plate (92), this a pair by one of them in yarn plate support column (916) by yarn plate support column and described lesser tubercle catch fitting projection (921) side contacts back to described lesser tubercle catch (843), and a pair by another in yarn plate support column (916) by yarn plate support column and described major tubercle catch fitting projection (922) side contacts back to described major tubercle catch (743).