CN106006216A - Constant-tension control type plying system - Google Patents

Abstract

The invention relates to a constant tension control type doubling system, comprising: two yarn paths arranged side by side, the two yarn paths gather the unwound yarns together and then wind them on the same bobbin yarn, each The yarn paths all include: a buoy with a pushing device at the bottom and a creel arranged near the buoy, the buoy also includes an upper cap and a lower cap that are sheathed together, and a chamber formed by the upper cap and the lower cap is provided with The floating spring, the pushing device is arranged at the bottom of the lower cap, the push rod provided on the pushing device extends into the lower cap and resists the floating spring, and the top of the upper cap is provided with a press for the yarn to pass through. There is also a guide wheel on both sides of the pressure groove, a guide wheel is arranged in the pressure groove, a gravity sensor is arranged on the creel, and the data of the gravity sensor is connected to the pushing device. The creel is provided with an unwinding transmission device.

Description

Constant tension control doubling system

technical field

The invention relates to a weaving device, in particular to a constant tension control type doubling system.

Background technique

Cone cone yarn has many advantages such as easy unwinding, not easy to fall off, etc. In the whole spinning process, cone cone yarn is an indispensable yarn weave form. Due to the needs of the next process, many processes often require the production of cones. shaped yarn.

The doubling machine can usually combine two single yarns to form a plied yarn (twisted ply). Usually the most important issue in plying is to control the two yarns to maintain the same tension during plying, so that the two single yarns form a single yarn. There will be no problem of long and short threads when plying. If there is a problem of long and short threads, the ply yarn will easily break in the next two-for-one twisting stage, and it will also easily appear "small tails" on the twisting thread. Therefore, it is necessary to strictly control the retreat of the two yarns. Winding tension ensures that the lengths of the two single yarns remain the same when plying.

Further, the problem encountered in doubling is that when the two bobbins are unwound and plied at the same time, the remaining yarns in the two bobbins are not necessarily the same, especially when there is very little remaining in one bobbin (yarn bobbins smaller diameter), and there is a lot of remaining yarn in the other package (the diameter of the yarn package is larger), and one meter of yarn is also unwound. Packaged yarn with a larger diameter, further, within the unit unwinding length of the yarn, the number of unwinding turns is more than a few months, the greater the unwinding tension on the upper line. Therefore, when bobbins of different sizes are paralleled, the problem of doubling quality due to factors of different sizes of bobbins needs to be eliminated.

Contents of the invention

The invention overcomes the disadvantages of the prior art and provides a constant tension control type doubling system with simple structure.

In order to achieve the above purpose, the technical solution adopted by the present invention is: a constant tension control type doubling system, including two parallel yarn paths, the two yarn paths gather the unwound yarns together and wind them together On the same bobbin, each yarn path includes: a buoy with a pushing device at the bottom and a creel arranged near the buoy, characterized in that the buoy also includes an upper cap and a lower cap that are sheathed together, so The cavity formed by the upper cap and the lower cap is provided with a floating spring, the pushing device is arranged at the bottom of the lower cap, and the push rod provided on the pushing device extends into the lower cap and resists the floating spring, The top of the upper cap is provided with a pressure groove for the yarn to pass through, and a guide wheel is arranged on both sides of the pressure groove, and a guide wheel is arranged in the pressure groove, and a gravity sensor is arranged on the creel. The data of the gravity sensor is connected to the pushing device, and an unwinding transmission device is arranged on the creel.

In a preferred embodiment of the present invention, the push device includes a drive base with a threaded hole, the push rod is provided with external threads, the push rod is threaded in the threaded hole, and the threaded hole is connected to the threaded hole. The buoys are arranged coaxially.

In a preferred embodiment of the present invention, the push rod is driven by a motor and rotates along the threaded hole.

In a preferred embodiment of the present invention, two yarn guide wheels are arranged symmetrically on both sides of the buoy.

In a preferred embodiment of the present invention, when the guide wheel moves axially with the brim of the buoy, the yarn is kept in a broken line or straight line on the yarn path of guide wheel-guide wheel-guide wheel, And the yarn is pressed and held on the guide wheel all the time.

In a preferred embodiment of the present invention, the gravity sensor detects the weight of the bobbin, and transmits the data of the bobbin weight to the pushing device, and the pushing device adjusts the height of the push rod according to the weight of the bobbin.

In a preferred embodiment of the present invention, the upper end and the lower end of the floating spring are respectively against the inner wall of the top of the upper cap and the top of the push rod.

In a preferred embodiment of the present invention, a top plate is provided on the top of the ejector rod, and the top plate coincides with the inner peripheral structure of the lower cap.

In a preferred embodiment of the present invention, wedge-shaped air holes are also provided on the top plate, the small openings of the wedge-shaped air holes face upwards, and the large openings face downward. The large openings are sealed by a net, and a block is arranged inside the wedge-shaped air holes.

The present invention solves the defect existing in the background technology, and the present invention has the following beneficial effects:

(1) Using the interlocking structure of the upper cap and the lower cap, a quasi-elastic body that can float up and down can be formed. As the unwinding of the same bobbin continues, the thickness of the yarn on the bobbin becomes more and more Smaller, the greater the air pressure filled into the buoy, the higher the upper cap height, the greater the tension to the yarn compensation, that is, the lighter the package, the greater the air pressure, the greater the unwinding tension after compensation; the heavier the package, The smaller the air pressure, the smaller the unwinding tension after compensation, which can ensure that no matter how heavy the package is, a certain unwinding tension will always be compensated, so that the two yarns will eventually have the same unwinding tension.

(2) The upper cap and the lower cap are interlocked together to form a floating structure, which can buffer the fluctuation of yarn tension, and supplement the fluctuation of tension, and further play a damping role.

(3) The two yarn guide wheels cooperate with the pressure groove, and the yarn is carried on it to form a unique running path of the yarn. The bending degree of the yarn path is changed by the floating of the upper cap, and the higher the float is, the compensation is given to The greater the tension of the yarn, the lower the float, the smaller the tension of the yarn compensation. The lower limit of the position of the upper cap can be when the two yarn guide wheels and the three points at the bottom of the pressure groove are collinear. At this time, the yarn compensation Thread tension is almost zero.

(4) The pressure groove forms a hump structure, and by setting the yarn at the bottom of the peak and valley, it is ensured that the yarn will not escape easily.

(5) The position of the push rod-the height of the upper cap-the tension of the yarn during unwinding-the weight of the bobbin and other dynamic factors form a dynamic closed-loop logic structure, and the automatic unwinding constant tension system is formed through the above logic structure.

(6) Through the function of the gravity sensor, the dynamic monitoring of the gravity of the bobbin is realized, and then the position of the push rod in the lower cap is commanded, thereby forming the function of dynamically adjusting the tension.

(7) The guide wheel is set in the pressure groove, which can provide rolling friction instead of sliding friction at the only contact position between the yarn and the buoy, so as to reduce the friction damage of the yarn.

(8) Wedge start When the push rod quickly adjusts the position, the block can be formed upward without affecting the deflation of the inner cavity of the buoy, but it can slow down the suction speed of the inner cavity of the buoy. That is, when the supplementary tension is increased, the feedback speed is faster, and when the compensation tension is decreased, the feedback speed is slower.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention is further described;

Fig. 1 is the structural representation of the preferred embodiment of the present invention;

Fig. 2 is a schematic cross-sectional structure diagram of one side of a buoy in a preferred embodiment of the present invention;

Fig. 3 is a schematic cross-sectional structure diagram of another side of the buoy according to the preferred embodiment of the present invention;

Fig. 4 is a schematic cross-sectional structure diagram of a push rod in a preferred embodiment of the present invention;

Among the figure: 2, upper cap, 4, pressure groove, 6, guide wheel, 8, guide wheel, 9, floating spring, 10, lower cap, 14, creel, 15, gravity sensor, 17, driving seat, 19 , push rod, 21, top disc, 23, wedge-shaped air hole, 25, net, 27, blocking block, 28, bobbin seat, 30, bobbin, 32, yarn.

detailed description

The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present invention in a schematic manner, so it only shows the composition related to the present invention.

As shown in Figure 1-4, a constant tension control doubling system includes two parallel yarn paths. The two yarn paths gather the unwound yarns and wind them into the same bobbin. Each yarn path includes: a buoy with a push device at the bottom and a creel near the buoy, the buoy also includes an upper cap and a lower cap that are sleeved together, and a chamber formed by the upper cap and the lower cap is provided. Floating spring, the pushing device is set at the bottom of the lower cap, the push rod set on the pushing device extends into the lower cap and resists the floating spring, the top of the upper cap is provided with a pressure groove for the yarn to pass through, and a guide is provided on both sides of the pressure groove. The yarn wheel is provided with a guide wheel in the press groove, a gravity sensor is provided on the creel, the data of the gravity sensor is connected to the pushing device, and an unwinding transmission device is provided on the creel.

The interlocking structure of the upper cap and the lower cap can form a quasi-elastic body that can float up and down. As the unwinding of the same bobbin continues, the thickness of the yarn on the bobbin becomes smaller and smaller. The greater the air pressure into the buoy, the higher the height of the upper cap, the greater the tension of the compensation to the yarn, that is, the lighter the package, the greater the air pressure, the greater the unwinding tension after compensation; the heavier the package, the smaller the air pressure , the smaller the unwinding tension after compensation, it can ensure that no matter how heavy the bobbin is, a certain unwinding tension will always be compensated, so that the two yarns will eventually have the same unwinding tension.

The upper cap and the lower cap are interlocked together to form a floating structure, which can buffer the fluctuation of yarn tension, supplement the fluctuation of tension, and further play a damping role.

The two yarn guide wheels cooperate with the pressure groove, and the yarn is carried on it to form a unique running path of the yarn. The bending degree of the yarn path is changed by the floating of the upper cap, and the higher the float is, the compensation is given to the yarn. The greater the tension, the lower the float, the smaller the tension to the yarn. The lower limit of the position of the upper cap can be when the two yarn guide wheels and the three points at the bottom of the pressure groove are collinear. At this time, the tension to the yarn is compensated. almost zero.

The pressure groove forms a hump structure, and by setting the yarn at the bottom of the peak and valley, it is ensured that the yarn will not escape easily.

The position of the push rod-the height of the upper cap-the tension of the yarn during unwinding-the weight of the bobbin and other dynamic factors form a dynamic closed-loop logic structure, and the automatic unwinding constant tension system is formed through the above logic structure.

Through the function of the gravity sensor, the dynamic monitoring of the gravity of the bobbin is realized, and then the position of the push rod in the lower cap is commanded, thereby forming the function of dynamically adjusting the tension.

The guide wheel is set in the pressure groove, which can provide rolling friction instead of sliding friction at the only contact position between the yarn and the float, so as to reduce the friction damage of the yarn.

When the wedge starts to quickly adjust the position of the push rod, the block can be formed upward without affecting the deflation of the inner cavity of the buoy, but it can slow down the suction speed of the inner cavity of the buoy. That is, when the supplementary tension is increased, the feedback speed is faster, and when the compensation tension is decreased, the feedback speed is slower.

The pushing device includes a drive seat with a threaded hole, and the push rod is provided with external threads, and the thread of the push rod is arranged in the threaded hole, and the threaded hole is coaxially arranged with the buoy, and the push rod is rotated by the motor along the threaded hole.

Two yarn guide wheels are arranged symmetrically on both sides of the buoy. When the guide wheel moves axially with the brim of the brim, the yarn is kept in a broken line or straight line on the yarn path of the guide wheel-guide wheel-guide wheel. And the yarn is pressed and held on the guide wheel all the time.

The gravity sensor detects the weight of the bobbin, and transmits the data of the bobbin weight to the pushing device, and the pushing device adjusts the height of the push rod according to the weight of the bobbin.

The upper end and the lower end of the floating spring are respectively against the inner wall of the top of the upper cap and the top of the push rod.

There is a top plate on the top of the ejector rod, which matches the inner circumference of the lower cap. There are also wedge-shaped air holes on the top plate. The small openings of the wedge-shaped air holes face upwards, and the large openings face downward.

The above is inspired by the ideal embodiment of the present invention. Through the above description, relevant personnel can make various changes and modifications within the scope of not departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the description, and must be determined according to the scope of the claims.

Claims (9)

1. null1. a constant-tension controls formula wire system，Including and the Liang Tiaosha road that sets，Liang Tiaosha road is wound on after being pooled together by the yarn each unwind out on same cylinder yarn，Mei Tiaosha road all includes: bottom arranges the floating drum of pusher and is arranged on the creel near floating drum，It is characterized in that，Described floating drum also includes the upper cap that is set-located and lower cap，It is provided with floating spring in the chamber that described upper cap and lower cap are collectively forming，Described pusher is arranged on bottom described lower cap，The push rod arranged on described pusher stretches into described lower cap and props up described floating spring，Described upper crown portion is provided with the indent passed through for yarn，Described indent both sides are also each provided with a yarn guiding wheel，It is provided with guide wheel in described indent，It is provided with gravity sensor on described creel，Pusher described in described gravity sensor data cube computation，Unwinding actuating device it is provided with on described creel.
2. Constant-tension the most according to claim 1 controls formula wire system, it is characterized in that: described pusher includes being threaded the drive seat in hole, arranging external screw thread on described push rod, described push rod screw thread is arranged in described screwed hole, and described screwed hole is coaxially disposed with described floating drum.
3. Constant-tension the most according to claim 2 controls formula wire system, it is characterised in that: described push rod is by motor threadingly hole rotation.
4. Constant-tension the most according to claim 1 controls formula wire system, it is characterised in that: what two yarn guiding wheels were symmetrical is arranged on described floating drum both sides.
5. Constant-tension the most according to claim 4 controls formula wire system, it is characterized in that: described guide wheel is with described in upper shade during floating drum axially-movable, keep yarn to become broken line or linear state on the thread path of yarn guiding wheel-guide wheel-yarn guiding wheel, and the pressure holding all the time of described yarn is on guide wheel.
6. Constant-tension the most according to claim 1 controls formula wire system, it is characterised in that: described gravity sensor detection cylinder yarn weight, and cylinder yarn weight data is transferred to pusher, described pusher is according to the height of cylinder yarn weight regulation push rod.
7. Constant-tension the most according to claim 1 controls formula wire system, it is characterised in that: described floating spring top and bottom are respectively held against the inwall in crown portion and the top of push rod.
8. Constant-tension the most according to claim 1 controls formula wire system, it is characterised in that: described push rod top is provided with, described in take over a business and coincide with described lower cap inner circumferential structure.
9. Constant-tension the most according to claim 8 controls formula wire system, it is characterised in that being additionally provided with wedge shape pore on taking over a business described in:, upward, big mouth down, described big mouth is sealed described wedge shape pore osculum by net, arranges sprue in described wedge shape pore.