阅读说明：本技术 一种用于涤纶长丝的拉伸假捻装置 (Stretching false twisting device for polyester filament yarn ) 是由 喻英 万紫艳 张甲迎 张伟 于 2021-09-16 设计创作，主要内容包括：本发明公开了一种用于涤纶长丝的拉伸假捻装置,包括能转动的筒体,筒体内设置有三节管,三节管包括链节状首尾连接的第一管体、第二管体和第三管体；三节管的第一管体或第三管体受驱动沿第一方向滑动使所述拉伸假捻装置分别表现状态一,该状态一下,第一管体、第二管体和第三管体形成“S”或“Z”型,且筒体端部设置的导线环呈打开状态；三节管的第一管体或第三管体受驱动沿第二方向滑动使所述拉伸假捻装置分别表现状态二,该状态二下,第一管体、第二管体和第三管体形成“S”或“Z”型,且筒体端部设置的导线环呈夹紧状态将纱线固定。本发明的拉伸假捻装置可以用于纱线导向、纱线假捻和纱线拉伸,大大丰富了原来假捻装置的功能性。(The invention discloses a stretching false twisting device for polyester filament yarns, which comprises a rotatable barrel, wherein three sections of pipes are arranged in the barrel, and each three section of pipe comprises a first pipe body, a second pipe body and a third pipe body which are connected end to end in a chain-shaped manner; the first tube body or the third tube body of the three-section tube is driven to slide along a first direction so that the stretching false twisting device respectively shows a first state, wherein the first tube body, the second tube body and the third tube body form an S shape or a Z shape, and a wire guide ring arranged at the end part of the tube body is in an open state; the first tube body or the third tube body of the three-section tube is driven to slide along the second direction, so that the stretching false twisting device respectively shows a second state, in the second state, the first tube body, the second tube body and the third tube body form an S shape or a Z shape, and a guide wire ring arranged at the end part of the tube body fixes the yarns in a clamping state. The stretching false twisting device can be used for yarn guiding, yarn false twisting and yarn stretching, and greatly enriches the functionality of the original false twisting device.)

1. A stretching false twisting device for polyester filament yarns comprises a cylinder body (100), wherein the cylinder body (100) can rotate around an axial direction, and is characterized in that a three-section pipe (200) is arranged in the cylinder body (100), and the three-section pipe (200) comprises a first pipe body (210), a second pipe body (220) and a third pipe body (230) which are connected end to end in a chain-shaped manner;

the first tube (210) or the third tube (230) of the three-section tube (200) is driven to slide along the first direction, so that the stretching false twisting device respectively shows a first state, wherein the first tube (210), the second tube (220) and the third tube (230) form an S shape or a Z shape, and a wire guide ring (300) arranged at the end part of the tube body (100) is in an open state;

the first tube (210) or the third tube (230) of the three-section tube (200) is driven to slide along the second direction, so that the stretching false twisting device respectively shows a second state, in the second state, the first tube (210), the second tube (220) and the third tube (230) form an S shape or a Z shape, and a yarn is fixed by a yarn guiding ring (300) arranged at the end part of the tube body (100) in a clamping state.

2. The draw false twisting device for polyester filament yarn as claimed in claim 1, wherein the upper and lower end surfaces of the cylinder (100) are provided with sliding grooves (110), the sliding grooves (110) are slidably provided with sliding blocks (120), the sliding blocks (120) are provided with through holes for accommodating the first tube (210) or the third tube (230), the first tube (210) extends upwards through the through holes and penetrates through the upper end surface of the cylinder (100), the third tube (230) extends downwards through the through holes and penetrates through the lower end surface of the cylinder (100), and the side wall of the second tube (220) is rotatably connected with the cylinder (100).

3. The draw false twisting device for polyester filament yarn as claimed in claim 2, wherein the slider (120) is provided with a sensor (410) along a path of the sliding groove (110) to the second direction, the upper and lower sections of the cylinder (100) are provided with the mounting seat (400), the mounting seat (400) is provided with a clamping plate (430) and a driving motor (420), the sensor (410) is in signal connection with the driving motor (420), the clamping plate (430) is formed by crossing two plate bodies in an "X" shape, the driving motor (420) can drive the clamping plate (430) to clamp, and the wire guide ring (300) is arranged on a clamping surface of the clamping plate (430).

4. The draw false twisting device for polyester filament yarn as claimed in claim 2, wherein the cylinder (100) is provided therein with a servo motor (121) and a lead screw nut for driving the slider (120) to slide.

5. The draw false twisting device for polyester filament yarn as claimed in claim 3 or 4, wherein the outer cylindrical wall of the cylinder (100) is provided with a conductive ring (122), and the conductive ring (122) is externally provided with a brush (123) in sliding contact with the conductive ring.

Technical Field

The invention belongs to the technical field of spinning, and particularly relates to a stretching false twisting device for polyester filament yarns.

Background

In the textile industry, false twisting is a special processing technology, both ends of yarn are controlled, twisting is carried out between the two ends, equal number of turns with opposite twisting directions can be generated on the sliver, finally, the twist degree of the yarn integrally added is kept to be zero, the strength of the same section as the designed twisting direction of the sliver can be increased on a roving frame, namely, the strength of a roving spinning section is increased, but the strength of the other section, a roving winding section, is subjected to untwisting: in the chemical fiber field, a section of yarn which is temporarily twisted is subjected to heat setting, then two ends of the yarn are combined and untwisted, and the integral twist is kept zero.

In addition, in the textile industry, false twisting also involves preceding and subsequent steps, such as heating, stretching, and the like.

In order to simplify the structure of the false twisting device, the patent application with the application number of 201310523536.7 and the name of bend false twister discloses a false twister formed by connecting a bend and a rotary drum, wherein the rotary drum is fixedly connected with the inner wall of the bend, the cross section of the bend is circular, and at least one bend is arranged, and the bend provided with multiple bends can softly hold yarns in each tiny local section; 201610698684.6 patent application entitled false twister discloses a false twister formed by connecting a bent tube, a hard tube, an upper tube and a lower tube, which changes the angle of the bent tube at two corners by adjusting the relative position of the upper tube and the lower tube, and further can apply different holding forces to different yarns, so that the false twister can meet the false twisting effect of different yarns.

The false twisting device disclosed in the above application can be used only for false twisting, and the function is relatively simple, and the present application aims to enrich the functionality by improving the structural characteristics of the false twisting device.

Disclosure of Invention

The invention provides a stretching false twisting device for polyester filament yarn aiming at the problems in the prior art.

The invention solves the technical problems through the following technical means:

a stretching false twisting device for polyester filament yarns comprises a barrel body, wherein the barrel body can rotate around the axial direction, three sections of pipes are arranged in the barrel body, and each three section of pipe comprises a first pipe body, a second pipe body and a third pipe body which are connected end to end in a chain-shaped manner;

the first tube body or the third tube body of the three-section tube is driven to slide along a first direction, so that the stretching false twisting device respectively shows a first state, wherein in the first state, the first tube body, the second tube body and the third tube body form an S shape or a Z shape, and a guide wire ring arranged at the end part of the tube body is in an open state;

the first tube body or the third tube body of the three-section tube is driven to slide along the second direction, so that the stretching false twisting device respectively shows a second state, in the second state, the first tube body, the second tube body and the third tube body form an S shape or a Z shape, and a guide ring arranged at the end part of the tube body fixes yarns in a clamping state.

Furthermore, the upper and lower terminal surface of barrel all is provided with the spout, it is provided with the slider to slide in the spout, have the through-hole that holds first body or third body on the slider, first body upwards extends to run through barrel up end through this through-hole, third body downwardly extending runs through terminal surface under the barrel through this through-hole, the lateral wall and the barrel of second body rotate to be connected.

Furthermore, a sensor is arranged on a path of the sliding block sliding towards the second direction along the sliding groove, mounting seats are mounted on the upper section and the lower section of the cylinder body, a clamping plate and a driving motor are mounted in the mounting seats, the sensor is in signal connection with the driving motor, the clamping plate is formed by two X-shaped plate bodies in a crossed mode, the driving motor can drive the clamping plate to clamp tightly, and the wire ring is arranged on a clamping surface of the clamping plate.

Furthermore, a servo motor and a lead screw nut which drive the sliding block to slide are arranged in the cylinder.

Furthermore, a conducting ring is arranged on the outer cylinder wall of the cylinder body, and an electric brush in sliding abutting connection is arranged outside the conducting ring.

The invention has the beneficial effects that: the stretching false twisting device can provide different functional effects under different scenes, can be used for yarn guiding, yarn false twisting and yarn stretching, can be set into corresponding modes according to different requirements, and greatly enriches the functionality of the original false twisting device.

Drawings

FIG. 1 is a schematic view showing the whole structure of a draw false twisting device;

FIG. 2 is a schematic view showing an internal structure of a draw false twisting device;

FIG. 3 is a schematic view illustrating a state in which the slider slides in a first direction;

FIG. 4 is a schematic view of the slider sliding in a second direction;

FIG. 5 is a schematic view of a clamping control structure of the wire loop;

FIG. 6 is a schematic view of a driving structure of the top block;

FIG. 7 is a schematic view of a driving structure of the slider;

fig. 8 is an external structure view of the cartridge.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

As shown in fig. 1 and 2, the draw false twisting device comprises a cylindrical barrel 100 and a three-section tube 200 arranged in the barrel 100, the three-section tube 200 is connected end to end in a chain-shaped manner, the three-section tube 200 comprises a first tube 210, a second tube 220 and a third tube 230 which are connected in sequence, the upper end surface and the lower end surface of the barrel 100 are respectively provided with a sliding chute 110, a sliding block 120 is arranged in the sliding chute 110 in a sliding manner, the sliding block 120 is provided with a through hole for accommodating the first tube 210 or the third tube 230, the first tube 210 extends upwards to penetrate through the sliding block 120 on the upper end surface of the barrel 100 through the through hole, the first tube 210 can slide relative to the through hole of the sliding block 120, the third tube 230 extends downwards to penetrate through the sliding block 120 on the lower end surface of the barrel 100 through the through hole, the third tube 230 can also slide relative to the through hole of the sliding block 120, the side wall of the second tube 220 is rotatably connected with the barrel 100, in particular, a convex supporting part 130 is arranged on the inner wall of the barrel 100, the second tube 220 has a rotation pin on a side wall thereof, the pin extending to a pin hole provided on the support portion 130 so that the second tube 220 can rotate with respect to the cylinder 100, and the pin is disposed at the middle of the second tube 220.

Based on the improved structural characteristics of the stretching false twisting device, the stretching false twisting device can realize different functions by changing the state of the three-section pipe 200, and the structure is as follows:

when the first, second and third bodies 210, 220, 230 are coaxial, the three-section tube 200 acts as a straight through conduit, and the yarn can pass directly through the three-section tube 200, where the three-section tube 200 is used for yarn guiding.

As shown in fig. 3, when the slider 120 on the upper end surface of the cylinder 100 slides along the sliding slot 110 in the first direction (i.e., direction a in fig. 1), the first tube 210 deflects, the second tube 220 is pulled to deflect clockwise, and further the third tube 230 is driven to slide in the direction a in the opposite direction, the first tube 210, the second tube 220, and the third tube 230 form an "S" or "Z" shape, and the joints of the first tube 210, the second tube 220, and the third tube 230 have a bent structure, so as to grip the yarn, control the cylinder 100 to rotate around the axial direction, and achieve false twisting.

As shown in fig. 4, when the sliding block 120 on the upper end surface of the cylinder 100 slides along the sliding groove 110 in the second direction (e.g., direction B in fig. 1), the first tube 210 is deflected, the second tube 220 is pulled to be deflected counterclockwise, and the third tube 230 is further driven to slide in the direction B, so that the first tube 210, the second tube 220, and the third tube 230 form an "S" or "Z" shape. Meanwhile, when the sliding block 120 on the upper end surface of the cylinder 100 starts to slide in the second direction, the wire loop 300 outside the upper end surface and the lower end surface of the cylinder 100 is triggered to clamp and close, so that the yarn passing through the wire loop 300 is clamped and fixed, the sliding block 120 continuously slides and deviates after the yarn is clamped and fixed by the wire loop 300, and along with the deviation of the sliding block 120, the wire loop 300, the first tube 210, the second tube 220 and the third tube 230 form an S-shaped bending path, so that the passing path of the part of yarn is prolonged, and the yarn stretching effect can be generated.

Through the stretching false twisting device, different functional effects can be provided under different scenes, namely the stretching false twisting device can be used for yarn guiding, yarn false twisting and yarn stretching, corresponding modes can be set according to different requirements, and the functionality of the original false twisting device is greatly enriched.

As shown in fig. 5 and 6, the present embodiment also provides a control structure for clamping the wire loop 300, which includes a sensor 410 and a driving motor 420, where the sensor 410 may select, for example, a proximity switch or a grating sensor, the sensor 410 is disposed on a path along which the slider 120 slides along the sliding slot 110 in the second direction, and is used to detect a sliding motion of the slider 120 in the second direction, and when the sensor 410 detects that the slider 120 slides in the second direction, a level signal is transmitted to the driving motor 420, and the driving motor 420 generates a control action to drive the wire loop 300 to be clamped after receiving the level signal.

Specifically, the mounting seat 400 is installed on the upper and lower sections of the cylinder 100, the mounting seat 400 is internally provided with a clamping plate 430 and a driving motor 420, the clamping plate 430 is formed by two plate bodies in an X shape in a crossed manner, the crossed portion of the clamping plate 430 is a hinged point, the clamping plate 430 is connected with the mounting seat 400 through a rotating pin arranged on the hinged point, the driving motor 420 is arranged outside the horizontal sweeping area of the clamping plate 430, the lead screw 440 is fixedly installed on an output shaft of the driving motor 420, the lead screw 440 is a bidirectional lead screw, two sections of threaded portions of the lead screw 440 are provided with a top block 450 through a lead screw nut, the top block 450 is limited by a flat plate 460 arranged at the bottom of the bottom, and the part of the top block 450 is located in the horizontal sweeping area of the clamping plate 430. When the driving motor 420 receives the level signal, it starts to work, so that the top block 450 is driven towards the clamp plate 430 by means of screw transmission, and continues to act after the top block 450 contacts the clamp plate 430, so as to drive the clamp plate 430 to rotate, forming a tightening movement trend, and the wire ring 300 is fixed on the inner sides of the two plate bodies of the clamp plate 430, and is deformed and tightened by the rotation of the clamp plate 430, and finally the yarn is clamped. The wire loop 300 is a flexible deformable material such as polyurethane, rubber, etc. that may be fixedly attached to the clamping plate 430 by gluing.

In order to facilitate the resetting of the clamping plates 430, a spring 431 is generally disposed between the clamping plates 430, and both ends of the spring 431 are respectively connected to different plate bodies, so that the spring 431 can be reset and limited.

In addition, as shown in fig. 7, a corresponding driving structure is also provided for the slider 120 on the upper end surface of the cylinder 100, the slider 120 itself is slidably disposed in the sliding groove 110, the sliding groove 110 has a limiting effect on the slider 120, the slider 120 is also driven by a transmission manner of a lead screw nut, a lead screw is disposed in the cylinder 100, the lead screw penetrates through the slider 120, the slider 120 is matched with the lead screw through the nut, the lead screw is driven by a servo motor 121, and the servo motor 121 is fixedly mounted in the cylinder 100.

In this embodiment, as shown in fig. 8, in order to achieve the rotation of the cylinder 100 for false twisting, the cylinder 100 may be driven by a gear, that is, a driven gear is fixedly installed outside the cylinder 100, and the cylinder 100 is driven to rotate by arranging a driving gear to mesh with the driven gear.

Further, in order to solve the problem of supplying power to the servo motor 121 and the driving motor 420 when the cylinder 100 rotates, the conductive ring 122 is arranged on the outer cylinder wall of the cylinder 100, the brush 123 which is in sliding abutting contact with the conductive ring 122 is arranged outside the conductive ring 122, the brush 123 is connected with an external power supply system, and a conducting wire is led out of the conductive ring 122 and is connected with the servo motor 121 and the driving motor 420, so that uninterrupted power supply to the servo motor 121 and the driving motor 420 can be realized in the rotating process of the cylinder 100.

It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.