JPS5826771A - Device which inspect knot of bobbin machine and control lower stream from slab capturer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention examines knots in a thread winding machine and
The present invention relates to a device for controlling all downstream from a 7y grub catcher.

More specifically, the present invention makes it possible to inspect the quality of the knot as soon as the knot is made, and prevents the spun yarn rising toward the yarn cage during winding from becoming tangled and slubbing. ), it is possible to check whether it contains pieces of thread or other similar defects.

Several devices are known that perform the work of a slab catcher and inspect knots as soon as they are formed.

Infact search conducted at the European Patent Office
nfaat 5earch) R8643711T is.

German Patent-A-No. 2.70 No. 80, German Patent-B-No. 293 Table 544, British Patent-A-No. 72
&294, British Patent-A-No.59&999, Swiss Patent-A-No.507.145 and German Patent-B
- discloses various devices of this type, such as those described in No. 154 &983.

Nevertheless, these known devices are rather complex and require complex actuation means.

In addition, some of the above-mentioned devices, in parallel, provide appropriate control downstream from the slab catcher and remove tangles in the yarn rising towards the yarn and spool for good results. Other devices are needed to enable and thereby improve upon the control already provided by slab grabbers.

SUMMARY OF THE INVENTION It is an object of the present invention to embody an improved device for tightening knots and controlling downstream from a slab catcher, said device being simple in construction and easy to use. ] and provides easy operation and adjustment.

Another object of the invention is that the control over the spun yarn to be wound is
The above-mentioned spun yarn makes a knot (knattisg) 1&
t, while being conveyed to the location of the slab trapper.

This provides continuous inspection of the spun yarn during the entire winding cycle, which may be included.

To accomplish its purpose, the apparatus of the present invention extends over the knottar and over the slab catcher to cooperate with both the knottar and the slab catcher. Two blade means are provided for controlling and guiding the yarn.

Besides, one of the above grades is grisset (pra
- set ) position and possibly an adjustable position, whereby the other blade can be moved or rotated from a static open position to its closed working position.

The length of time in the stationary or active state can be varied by varying the mutual position of the mutually cooperating leading (r-αdO) means and the two-cam means, whereby said leading The position of the means can be adjusted axially.

Accordingly, the present invention provides an apparatus for inspecting knots in a thread winding machine and controlling downstream from a slab catcher, said apparatus comprising: - means for inspecting spun yarn by means of a blade; - a blade. and means for effecting the opening of the blade means, thereby including repositioning means and means for adjusting the opening of the blade means.

BRIEF DESCRIPTION OF THE DRAWINGS Preferred embodiments of the invention will now be described, by way of non-limiting example, with reference to the accompanying drawings.

In the drawings, identical parts or parts having the same function are provided with the same reference numerals.

In particular, the apparatus 10 of the present invention comprises means for inspecting the spun yarn 121r using two blade means 13, whereby said blade means 13Vi and the fixed blade means 14 can be moved. , and a grading means 15 which can be rotated at least partially], so that said two blades complement each other (rae
iproaally) positionable.

The above-mentioned two 21 on which the spun yarn 12 is guided and slides
16t
'i, by adjusting the relative position of said blade means 14-15 by means of suitable adjustment means 17.

Specifically, said opening is sized to match its basic diameter and is related to the size of the defect and knot to be removed.

For this purpose, a threaded through hole 43 in the blade 14
It is sufficient to adjust the axial position of the screw 4o which is engaged with and connected to the corresponding fixing structure 26.

The positions of said grade 14 and said fixed structure 26 are temporarily maintained by the action of a thrust spring 41, so that said grade 14 is suspended above said fixed structure 26 (hingttd) (42). Deoshi,
Then, as shown in FIG. 4, it rotates as a result of an axial displacement of the screw 4 DEG so that the width of the long slit 16 can be varied.

1 and 2 show the means 18 for fully opening the blades 14-15, which is shown in exploded view and connected to a cam 19 wedged to a horizontal knotting shaft. and the leading pier 21 passing through the transverse arm 22.

The position of the leading pin 21 in the axial direction is such that the leading pin 21 is located between one of the two inner peripheral tops 23-123 and WIb.
IiI! The two circumferential apices 23-123 of the front 6d are stacked one on top of the other in a semi-focused rotation, and rotate in the direction A (see Fig. 1). and FIG. 2) The cam 19 is divided to obtain different lengths of time for opening and closing the two raids 14-15.

In an embodiment of the invention, a circumferential apex 23 allows said blade to be closed for a period limited to the knot tying stage, whereas a top region 123 allows said blade to be closed during a V# thread winding stage. 14-15 Fully close.

When the leading pin 21 acts on the sloped portion 24 of the radial top 23 (FIG. 1), (2) the fixed structure 26
The swinging arm 22, which is hinged at its apex s25, is kept in its rest position by suitable positioning means 39tlC, consisting of the piston 29, which is pressurized by a thrust spring 27 coaxially cooperating with the piston 29. dripping

In particular, said spring 27 is under axial compression between the end 30 of said piston 29 pushing against said swing arm 22 and a point of resistance 28 on fixed structure 26. is maintained.

The other end 130 of the piston 29 is at the point where the rotary blade 15 is retracted (31), to which said end 130 is hinged! t
% or in the inactive position.

The rotation grade (15) is the pivot 310 described above.
It is equipped with 2 pits and 32 nearby bacteria.

Said pivot 32 thereby allows said blade 15
i, two pivots 31, whose length is placed at the end 45 of said rotational grade 15! =32(!:) with a rotating arm equal to the distance between the fixed structure 260.

FIG. 1 shows the rest position of the device lO, and vice versa the second
The figure shows the device in its operating position.

Specifically, in FIG. 2 the leading beam 21 cooperates with the sector 124 of the circumferential top 123 of the double cam 19 and, more particularly, with the front part 33 of the cam 19.

Under these operating conditions, the swing arm 122 is rotated in the direction B and pushes the screw yg9, thereby compressing the thrust spring 27.

Furthermore, said piston/29 is hinged 31 on said grade 15 by its end 130.

Said grade 15 is rotated to the closed position, i.e. to the working position.

An inspection of the just-formed knot can be carried out above the knotttr 36 in the region of the long slit 16 at the position vU.

As shown in FIG.
34 can be carried by sliding tangentially on the fixed blade 14.

Said region 134 corresponds to the position through which said spun yarn 12 passes during the winding stage. In Figure 3.

The movable blade 15 is shown in dashed lines when it is in its rest (open) position, and when it is in its (
closed) when in the operating position.

Indicated by the east line.

Said fixed 21/-P14i, tangential surface
al) A magnetic guide 35 is provided in said area, which allows said fixed grade 14 to cooperate better with the spun yarn thereon, and also a protruding end store.
f (terminal 5top) 3 g, which prevents said spun yarn from escaping the control of the blade means 13.

When the leading pin 12 acts on the radial area 23 of the cam 19, the movable blade means 15.

As soon as said leading pin 21 enters the sector 24, it is returned to its retracted position.

Instead, the leading pin 21 is connected to the circumferential top portion 123 and W
jJIiII, the rotating blade 15 remains closed relative to the stationary blade 14 so as to exercise its control downstream from the slab catcher.

Although applicants have herein described a preferred implementation of the invention, various modifications may be made by those skilled in the art.

As a matter of fact, the shape and size may vary. It is possible to include the cooperation of different systems between the 39 means of repositioning the grade, or otherwise foresee the stiffness of the means, although mechanically different, which may result in the described function. It is possible to do.

It is also possible to envisage the use of multiple cam means with a number of circumferential crests other than two.

These and other modifications are all possible by those skilled in the art within the scope of the inventive solution idea.

[Brief explanation of the drawing]

FIG. 1 shows a three-dimensional view of the device of the invention in the rest position. FIG. 2 shows a three-dimensional view of the device of the invention in the operating position. Figure i31!3 is a plan view of the two-blade means for inspecting the spun yarn. Fig. 4 C- of the means for adjusting the opening of the two blades
It is a detailed 41A side view when cut along the C line. 12...Spun yarn 13...Blade means 14.15...Blade 16...Slit 19...Cam 22...・Swinging arm 29... Piston patent comparison figure 3 Offisine Savio Nis B Ane 3 Figure 4

Claims (1)

[Claims] 1. A device (10) for inspecting knots in a thread winding machine and controlling downstream from a slab catcher, wherein the spun yarn (12) passes through the slab catcher (37). Afterwards, in the device capable of inspecting the spun yarn (12); one blade means (13) 1! - means (11) for testing using; One blade hand! (13) Means for opening (18)
It is equipped with all the necessary functions, thereby providing a means of repositioning (39)
and a device (1G ). 2 Means for inspecting using the blade (13) (
11) with fixed grade means (14). and corresponding blade means (15) which are movable and at least partially rotatable. Thereby, the blade means (14-15) can be positioned at least partially complementary to each other, and the knotting machine (36) and slab catcher (37) of the winding machine
) are aligned on top of the spun blade means (14-1!1) and thereby a slint (16) for inspection and sliding of the yarn is positioned between the temporarily closed blade means (14-1!1). A device (10) for inspecting knots and controlling downstream from a slab catcher in a thread winding machine according to claim 1. The movable blade means (15) is connected to two points (31-3).
2), and at one end (45) thereof respectively a fixing structure (26) and a repositioning device! 1t(3
9), thereby connecting the two points (31-
The end hinged at the movable blade means (15)
) in a thread winding machine according to claims 1 and 2, which acts as a rotating arm for a winding machine. and equipment for controlling downstream from the slab catcher (lO
). 4. According to any one of claims 1 to 3, the fixed blade (14) is provided with a protruding stop (38) defining the limits of the lateral movement of the yarn (12). a device (10) for inspecting knots in a yarn winding machine and for controlling downstream from a slab catcher (10) ) long guide for (35
) [(10)
. a said means (18) for causing the opening of said blade means (13) to have at least one unique circumferential apex ( 23-123), thereby causing the leading pin (21
) is located at the top of the circumference (23-12) of the cam (19).
Any one of claims 1 to 5 can be adjusted to cooperate with or interfere with at least one of 3).
A device (lO) for inspecting knots and controlling downstream from a slab catcher in a thread winding machine according to paragraph 1. 7. The repositioning means (39) is located at one of its ends (30
) a piston (29) cooperating with said swinging arm (22);
, whereby the other end (13G) is pushed onto the movable blade (15), and thereby the piston (29) holds the movable blade (15) in the retracted or open position. so that the piston (29) is positioned coaxially with the piston (29) and the end (30) and the fixing structure (2
6) in a peg winding machine according to any one of claims 1 to 6, which is operated by the action of a thrust spring (27) compressed in the axial direction between the upper resistance point 28); Device (10) for inspecting knots and controlling downstream from the slab catcher. 8. The hand Pi (1) that adjusts the opening of the blade (13)
7) has a threaded through hole (4) in the fixed blade (14).
3) and correspondingly (44) said fixation structure (
a screw (40) connected to the blade (14) and the fixation structure (26), whereby the position of the grade (14) and the fixation structure is fixed to the screw between the blade (14) and the fixation structure (26); (40) and is temporarily maintained by the action of a thrust spring (41) which is previously arranged on the coaxial line. and thereby the blade (14) is hinged to the fixed structure (26) and as a result of the axial displacement of the screw (40) the width of the long slit (16) can be varied. Claim 1-
Apparatus (10) for inspecting knots and controlling downstream from the slab catcher in a thread winding machine according to any one of clauses 7.