TECHNICAL FIELD

The present invention relates to an apparatus which provides adjustment of tension of yarn in warping creels, in other words, in warping machines.

The present invention relates to a mechanism which provides realization of adjustment in a synchronized manner with each other in the same group and which provides realization of adjustment in an independent manner in alternative usage, and relates to an apparatus where this mechanism is kept.

PRIOR ART

In weaving, transfer of warp yarns to the beams is realized as required by means of warping machines. Within the scope of serial warping, the yarns coming from the warping creel are wrapped to beams in a parallel manner. Within this scope, the yarns on the bobbins collected in the warping creel are collected in a parallel manner to each other in a regular manner and with equal tension, and they are wrapped onto the beam. In conical warping machines, the yarns coming from the warping creel are wrapped onto cylinder in the form of groups, and afterwards they are transferred to the beam.

During weaving, the parameter, which directly affects wrapping during transfer of the yarn from the bobbins, is the yarn wrapping tension. This leads to over-abrading of the yarn during the transfer or loosening of the yarn, and depending on this, quality faults occur in the product. Moreover, in case of breakage due to high tension, monetary losses can also occur.

In the known art, tension apparatus are used for providing constant and determined tension to the yarn during transfer of yarn through the bobbins which exist on the warping creel machine. However, the present tension apparatus cannot provide an exact solution to the problem, and in some developed machines, the present technical problem is tried to be solved by means of sensor structures. However, another problem in the related art is the high-cost of the related machines. In the EPO patent document with publication number EP2572023B1 , an apparatus is described which provides adjustment of the tension during transfer of yarns. In the related study, the yarn rotates around the roller, and transfer is aimed to be realized at fixed tension by means of spring mechanisms used in this section.

In the USPTO patent document with publication number US5329822A, a sensor embodiment is described which provides measurement of tension during transfer of yarn through the bobbins. Said sensor has a form which is similar to structure of pin which is controlled magnetically on a body, and measurement is made by exerting force on the yarn while the yarn is passing.

In the USPTO patent document with publication number US6095449A, a mechanism is described which provides controlling the tension during transfer of the yarn.

In the USPTO patent document with publication number US4010915A, apparatus/ mechanism design is described which provides determination of the tension of the yarn in a similar manner. The related mechanism creates braking effect on the yarn and provides usage of the yarn with the desired tension. Within the scope of the embodiment, yarn is circulated around a roller, and movement speed of the yarn is limited by means of the tension element which is similar to a spring, and thereby the tension is adjusted.

As a result, because of the abovementioned problems, an improvement is required in the related technical field.

OBJECT OF THE INVENTION

The present invention is provided for eliminating the abovementioned disadvantages and for realizing a novelty in the related technical field.

The main object of the present invention is to provide a tension adjustment apparatus structure which provides realization of transfer of the yarns, unwrapped from the bobbins in warping machines, in a balanced manner and at the determined tension.

Another object of the present invention is to provide a tension adjustment apparatus structure which operates synchronously with each other on the determined groups in warping creels. Another object of the present invention is to provide transfer of yarn to weaving without affecting yarn quality in warp.

Another object of the present invention is to prevent affecting of the weaving quality in a dependent manner on the warp.

Another object of the present invention is to provide a tension adjustment apparatus structure which can be adapted to present warping machines.

Another object of the present invention is to provide an apparatus structure which provides realization of tension adjustment, by realizing force transfer from a single center, on the bobbins which exist in the same row.

BRIEF DESCRIPTION OF THE INVENTION

In order to realize the abovementioned objects and the objects which are to be deducted from the detailed description below, the present invention is a tension adjustment apparatus which is suitable for use in warping creels.

The present invention relates to apparatus which provides exertion of force, which can be electronically controlled, onto the yarn in order to provide unwrapping of yarns, taken from the yarn bobbins in warping machines, at equal tension, said apparatus is characterized by comprising tension adjustment wheel group which has fixed wheel and adjustment wheel structures which are at least two parts and which provide adjustment of the tension by exerting force onto the yarn and positioned on the main casing body formed by at least one part; at least one main movement gear positioned at the same axis in order to provide rotation of said tension adjustment wheel group in the direction of the movement of the yarn; an inner body which provides controlling of the distance between said fixed wheel and said adjustment wheel and which has magnetic field region on the outer part; and inner movement bobbin positioned at the inner part of said inner body and which provides control of said distance by means of electrical current applied thereon.

In another preferred embodiment of the present invention, the subject matter apparatus comprises at least one transfer gear having axis positioned orthogonally to said main movement gear axis and which provides force transfer to the main movement gear in order to provide rotation of the tension adjustment wheel group in the same direction as the movement direction of the yarn. In another preferred embodiment of the present invention, the subject matter apparatus comprises opening at the inner part of said transfer gear and at least one shaft connected to the transfer gear through said opening, in order to provide force transfer.

In another preferred embodiment of the present invention, the subject matter apparatus has transfer gear comprising an opening which has the same cross-section as the geometric form which exists at the cross-section of the shaft.

In another preferred embodiment of the present invention, the subject matter apparatus comprises at least two shaft bearing bushings which enable bedding of the shaft on said main casing body and which provide bedding of the transfer gear on the main casing body and at the same time which provide force transfer to said transfer gear.

In another preferred embodiment of the present invention, the subject matter apparatus comprises a shaft bearing bushing which enables filling of the gap which remains between the transfer gear and two mutual bearing housings which enable realization of bedding on the main casing body.

In another preferred embodiment of the present invention, the subject matter apparatus comprises a main body which provides force transfer by means of the same shaft in a synchronous manner to all transfer gears of the mechanisms positioned in the same direction, and which provides enclosing of said mechanisms.

In another preferred embodiment of the present invention, the subject matter apparatus comprises a tension adjustment wheel group where at least one of the fixed wheel or the adjustment wheel is made of copper material.

In another preferred embodiment of the present invention, the subject matter apparatus comprises a tension adjustment wheel group where at least one of the fixed wheel thereof or the adjustment wheel thereof is copper and which has coating structure, which prevents magnetic field, on said copper.

Within the scope of the present invention, there are tension adjustment wheels which can be controlled independently from the mechanism design on the tension box which is the main body. As the position of said adjustment wheels is controlled, the tension of the passing yarn is determined. Within this scope, the control is preferably realized by means of PLC, and the weight information of the total yarn, which passes through cross combs which exist in front of the warping machine, reaches the warping creel by means of load cell. Thanks to this, the same weight information of the mechanisms reaches to all tension compartments from a single center.

In the preferred embodiment of the present invention, the control of said wheels can be realized simultaneously with each other or said control can be independently realized.

In the preferred embodiment of the present invention, the apparatus is vertically positioned Thanks to this, said wheels (fixed wheel and adjustment wheel) function in a vertical position. Thus, holding of yarn piles or dust is prevented.

In the preferred embodiment of the present invention, the distance between the two wheels (adjustment wheel) is controlled magnetically in accordance with the information coming through the PLC. Within the scope of the present invention, the measurement of said information is realized through the load cell. Thanks to this, tension adjustment is automatically realized in accordance with the weight of the yarn which passes through the warping machine.

The protection scope of the present invention is set forth in the annexed claims and cannot be restricted to the illustrative disclosures given above, under the detailed description. It is because a person skilled in the relevant art can obviously produce similar embodiments under the light of the foregoing disclosures, without departing from the main principles of the present invention.

BRIEF DESCRIPTION OF THE FIGURES

In Figure 1 , the representative view of the subject matter apparatus is given.

In Figure 2, the exploded perspective view of the outer body of the apparatus is given.

In Figure 3, the perspective view which shows the mechanism of the apparatus is given.

In Figure 4, the perspective view which shows the interrelation of the mechanism is given.

In Figure 5A and Figure 5B, the perspective views of a part of the mechanism are given.

In Figure 6, the exploded view of the mechanism is given. In Figure 7, the cross-sectional view of the mechanism is given.

In Figure 8, the cross-sectional view of the wheel structure of the mechanism is given.

REFERENCE NUMBERS

10. Main body

11 . Body cover

20. Mechanism

201 . Main casing body

2011 . Bearing housing

202. Intermediate casing body

21 . Main movement gear

22. Transfer gear

23. Shaft bearing bushing

24. Inner body

25. Inner movement bobbin

26. Tension adjustment wheel group

261 . Fixed wheel

2610. Fixed wheel curve

262. Adjustment wheel

2620. Movable wheel curve

27. Outer heading part

271. Pin

30. Connection shaft

A. Apparatus

DETAILED DESCRIPTION OF THE INVENTION

In this detailed description, the subject matter tension adjustment apparatus (A), which is suitable for use in the warping creels, is explained with references to examples without forming any restrictive effect only in order to make the subject more understandable.

The subject matter relates to an apparatus (A) which provides adjustment of tension of yarn in warping creels, in other words, in warping machines. The present invention is characterized by comprising tension adjustment wheel group (26) which has fixed wheel (261 ) and adjustment wheel (262) structures which are at least two parts and which provide adjustment of the tension by exerting force onto the yarn and positioned on the main casing body (201 ) formed by at least one part; at least one main movement gear (21) positioned at the same axis in order to provide rotation of said tension adjustment wheel group (26) in the direction of the movement of the yarn; an inner body (24) which provides controlling of the distance between said fixed wheel (261) and said adjustment wheel (262) and which has magnetic field region on the outer part; and inner movement bobbin (25) positioned at the inner part of said inner body (24) and which provides control of said distance by means of electrical current applied thereon.

In Figure 1 , the perspective view of the apparatus (A) is given; in Figure 2, the exploded perspective view of the apparatus (A) is given. In the preferred embodiment of the present invention, the mechanism (20), which provides tension adjustment, is fixed in the body (10) and the cover (11). Thanks to this, the mechanism (20) is positioned in the same direction, and can be controlled by means of the rotation force exerted through a single point by means of at least one shaft (30).

In Figure 5A and 5B, the perspective view of the mechanism of the subject matter apparatus (A) is given. The mechanism (20) has been fixed onto the main casing body (201 ) and onto the intermediate casing body (202) at the outer part. Said intermediate casing body (202) is connected onto the main casing body (201) and a gap is formed between said two parts. In said gap, the main movement gear (21) is bedded between the main casing body (201 ) and the intermediate casing body (202). At least two bearing housings (2011) of the main casing body (201 ) of the present invention are positioned in the same direction with each other, and the transfer gear (22) is positioned in the same direction. Said transfer gear (22) is positioned in a manner realizing movement transfer to said main movement gear (21 ) preferably in a manner orthogonal to the axis of the main movement gear (21) on the main casing body (201 ). By means of this, the direction of the movement, taken by means of the shaft (30) positioned orthogonally to the main casing body (201 ), is changed and can be transferred to the tension adjustment wheel group (26) through the main movement gear (21).

In the preferred embodiment of the present invention, there is shaft bearing bushing (23) for bedding the shaft (30) on each bearing housing (2011 ) provided on the main casing body (201 ). In the preferred embodiment of the present invention, the shaft bearing bushings (23) extend in a manner closing the gap between the transfer gear (21 ) and the side panels of the main casing body (201) where the bearing housing (2011 ) exists. Thanks to this, the position of the transfer gear (22) can stay fixed. As seen in Figure 5B, the rotational movement on transfer gear (22) is transferred to the main movement gear (21), which is tangent, in an orthogonal manner to the threads of said gear.

In the preferred embodiment of the present invention, movement is provided onto the mechanism (20) through the transfer gear (22) by means of the shaft (30). Said shaft (30) is placed to the inner part of the transfer gear (22). For the purpose of realization of force transfer, the form of the inner gap of the transfer gear (22) is equivalent to the form of the shaft (30). In the preferred embodiment of the present invention, the outer surface of the shaft (30) can have triangular, quadrangular or polygonal form. In the preferred embodiment, the shaft (30) has a hexagonal cross-section. In a similar manner, the opening which exists at the inner part of the transfer gear (22) has hexagonal form.

The present invention has inner body (24) at the outer part at the upper section of the intermediate casing body (202), inner movement bobbin (25) in said inner body, and tension adjustment wheel group (26) at the upper part. In the preferred embodiment, there is the outer heading part (27) comprising at least one pin (271 ) on the upper part of the tension adjustment wheel group (26) of the invention. Said outer heading part (27) provides observation of the movement of the tension adjustment wheel group (26).

In Figure 6, the exploded view of the mechanism (20) is given. The tension adjustment wheel group (26) of the present invention is positioned at the upper section of the inner body (24) such that the fixed wheel (261 ) and the movable wheel (262) are at the same center.

There is the housing embodiment which provides bedding of said inner movement bobbin (25) and which is suitable for the placement of the inner movement bobbin (25) in the inner body (24) of the present invention.

In the preferred embodiment of the present invention, magnetic field is formed at the inner part of the inner body (24). In the preferred embodiment, PM (permanent magnet) is used along the outer wall, at the inner part of the inner body (24). In alternative embodiment, bobbin embodiment which provides formation of magnetic field can be used. The inner movement bobbin (25) is positioned at the inner part of the inner body (24) which provides formation of magnetic field thereon and which functions as the core. The movable adjustment wheel (262) is moved in an orthogonal manner to the fixed wheel (261) by means of said inner movement bobbin (25). Said movement is controlled by means of the electrical current direction and intensity applied to the inner movement bobbin (25). Within the scope of the invention, said inner body (24) is preferably an automat without lead.

In the preferred embodiment of the present invention, the fixed wheel (261 ), which provides adjustment of the tension of the yarn and positioned preferably at fixed position, has been coated with nickel without current. Thanks to this, magnetic field formation thereon is prevented or minimized.

In the preferred embodiment of the present invention, the intermediate casing body (202) is made of aluminum material. Thanks to this, the heat coming through the inner body (24) heated depending on operation conditions and provided on said intermediate casing body (202) is distributed more easily.

In Figure 8, the cross-sectional view of the tension adjustment wheel group (26) of the present invention is given. The tension adjustment wheel group (26) has curve form positioned in opposite directions with each other. Within this scope, there is movable wheel curve (2620) in the structure of the adjustment wheel (262) provided at the upper part, and there is fixed wheel curve (2610) in the structure of the fixed wheel (261 ) provided at the inner part. Thanks to the form also seen in the figure, the yarn is positioned between the two wheels. As the distance between said fixed wheel (261 ) and said adjustment wheel (262) is changed, the force (friction force) exerted to the yarn which remains in the curved form can be controlled. Thanks to this, the tension of the yarn unwrapped from the bobbins in the warping creel is adjusted.

In the preferred embodiment of the present invention, during passing of the yarn between the fixed wheel (261) and the adjustment wheel (262), said wheels are rotated in the same direction as the movement direction of the yarn in order for the yarn not to be damaged. Said rotation action is realized through the main movement gear (21) of the mechanism (20).

In the preferred embodiment of the present invention, since two different movement transfers are provided to the tension adjustment wheel group (26), transfer shaft embodiment can be used which are telescopically positioned and which can be controlled independently from each other.

In the preferred embodiment of the present invention, coating, which prevents the effect of magnetic field, is used on the tension adjustment wheel group (26). In the preferred embodiment of the present invention, at least one of the fixed wheel (261) or the adjustment wheel (262) is made of copper material.