阅读说明：本技术 一种适用于纱架上纱筒头尾线自动接头装置及方法 (Automatic yarn bobbin head and tail yarn splicing device and method suitable for creel ) 是由 毛慧敏 史伟民 孙磊 屠佳佳 周钟岗 顾叶琴 朱婉珍 于 2021-06-11 设计创作，主要内容包括：本发明公开了一种适用于纱架上纱筒头尾线自动接头装置及方法,包括箱体,所述箱体的顶部固定有上盖板,所述上盖板上安装有吸线机构,所述箱体上安装有U型罩壳,所述U型罩壳的一侧安装有旋转机构,所述U型罩壳的另一侧安装有张紧机构,所述张紧机构上安装有引导件,所述箱体的底部安装有下盖板,所述箱体上安装有挑线机构、打结机构、压线机构和引导座。本发明的目的是根据手动打结原理,开发一种适用于纱架上的纱筒头尾纱接头装置及方法,通过模拟人工接头的过程,来实现自动接头,并保证良好的接头情况,真正为实现无人工厂和纺织智能制造提供解决方案。(The invention discloses an automatic yarn bobbin head and tail yarn jointing device and method suitable for a creel, and the automatic yarn bobbin head and tail yarn jointing device comprises a box body, wherein an upper cover plate is fixed at the top of the box body, a yarn sucking mechanism is installed on the upper cover plate, a U-shaped housing is installed on the box body, a rotating mechanism is installed on one side of the U-shaped housing, a tensioning mechanism is installed on the other side of the U-shaped housing, a guide piece is installed on the tensioning mechanism, a lower cover plate is installed at the bottom of the box body, and a yarn picking mechanism, a knotting mechanism, a yarn pressing mechanism and a guide seat are installed on the box body. The invention aims to develop a yarn bobbin head and tail yarn jointing device and method suitable for a creel according to a manual knotting principle, realize automatic jointing by simulating a manual jointing process, ensure good jointing conditions and really provide a solution for realizing unmanned factory and intelligent textile manufacturing.)

1. The utility model provides a be applicable to yarn section of thick bamboo head tail wire automatic joint device on creel, includes box (1), its characterized in that: the top of box (1) is fixed with upper cover plate (3), install on upper cover plate (3) and inhale line mechanism (4), install U type housing (2) on box (1), rotary mechanism (12) are installed to one side of U type housing (2), straining device (6) are installed to the opposite side of U type housing (2), install guide (5) on straining device (6), apron (11) down is installed to the bottom of box (1), install on box (1) and pick line mechanism (7), knot-tying machine constructs (8), line pressing mechanism (9) and guide holder (10).

2. The automatic yarn splicing device for the bobbin head and tail yarns on the creel according to claim 1, wherein: the line suction mechanism (4) comprises a suction nozzle motor (4-1), a suction nozzle mounting seat (4-2), a suction nozzle (4-3), a suction nozzle fixing seat (4-4), a suction nozzle initial position sensor (4-5), a suction nozzle initial position sensing piece (4-6), a suction nozzle tail end position sensor (4-7) and a suction nozzle tail end position sensing piece (4-8);

the suction nozzle mounting seat (4-2) is fixed at the top of the upper cover plate (3), a suction nozzle motor (4-1) connected with the suction nozzle mounting seat (4-2) is installed at the bottom of the upper cover plate (3), a suction nozzle (4-3) is installed at the top of the suction nozzle mounting seat (4-2) through a suction nozzle fixing seat (4-4), a suction nozzle initial position induction sheet (4-6) and a suction nozzle tail end position induction sheet (4-8) are symmetrically installed on the suction nozzle (4-3), and a suction nozzle initial position sensor (4-5) and a suction nozzle tail end position sensor (4-7) are symmetrically installed on the upper cover plate (3).

3. The automatic yarn splicing device for the bobbin head and tail yarns on the creel according to claim 1, wherein: the wire pressing mechanism (9) comprises a crank block (9-1), a wire pressing motor (9-2), a sliding rail (9-3), a connecting rod (9-4), a fixed seat (9-5), a pressing piece (9-6), a lower fixing piece (9-7), a pressing disc (9-8), a spongy cushion (9-9), a wire pressing position sensor (9-10) and a pressing induction sheet (9-11);

the wire pressing motor (9-2) connected with the crank block (9-1) is installed at the rear of the box body (1), the top of the crank block (9-1) is connected with the lower pressing piece (9-6) through a connecting rod (9-4), the lower pressing piece (9-6) is connected onto a sliding rail (9-3) in front of the box body (1) in a sliding mode, a fixing seat (9-5) is installed under the bottom of the lower pressing piece (9-6), the top end of the fixing seat (9-5) is fixed with a pressure plate (9-8) through a lower fixing piece (9-7), sponge cushions (9-9) are correspondingly installed on the lower pressing piece (9-6) and the pressure plate (9-8), and a lower pressing induction piece (9-11) is installed on one side of the tail portion of the lower pressing piece (9-6), and a line pressing position sensor (9-10) is arranged below the lower pressing induction sheet (9-11).

4. The automatic yarn splicing device for the bobbin head and tail yarns on the creel according to claim 1, wherein: the tensioning mechanism (6) comprises a tensioning motor (6-1), an electromagnet (6-2), a tensioning rod (6-3), a tensioning rod connecting column (6-4), a tensioning motor mounting seat (6-5), a tensioning motor pressing plate (6-6) and an electromagnet mounting seat (6-7);

the U-shaped housing is characterized in that a tensioning motor mounting seat (6-5) is fixed on the inner wall of one side of the U-shaped housing (2), a tensioning motor (6-1) is fixed on the tensioning motor mounting seat (6-5) through a tensioning motor pressing plate (6-6), the tensioning motor (6-1) is connected with a tensioning rod (6-3) on the outer wall of the U-shaped housing (2) through a tensioning rod connecting column (6-4), and an electromagnet (6-2) is fixed above the tensioning rod (6-3) through an electromagnet mounting seat (6-7).

5. The automatic yarn splicing device for the bobbin head and tail yarns on the creel according to claim 1, wherein: the take-up mechanism (7) comprises a take-up support (7-1), a take-up device (7-2), a take-up cam (7-3), a ball (7-4), a take-up device fulcrum shaft (7-5), a ball fulcrum shaft (7-6) and a take-up cam mounting seat (7-7);

the thread picker is characterized in that the thread picker (7-2) is fixed on a thread picking support (7-1) through a thread picker support shaft (7-5), the tail end of the thread picker (7-2) is connected with a ball (7-4) through a ball mounting plate, the ball (7-4) is fixed on the box body (1) through a ball support shaft (7-6), the ball (7-4) is in contact with a thread picking cam (7-3), the thread picking cam (7-3) is fixed on the thread picking cam mounting seat (7-7), and the thread picker (7-2) is connected with a spring fixed inside the box body (1).

6. The automatic yarn splicing device for the bobbin head and tail yarns on the creel according to claim 1, wherein: the knotting mechanism (8) comprises a knotting knife (8-1), a knotting knife buckle (8-2), a knotting motor (8-3), a knotting gear (8-4), a knotting motor gear (8-5), a knotting transmission gear (8-6), a bevel gear set (8-7), a knotting knife sleeve (8-8), a knotting sensing piece (8-9), a knotting sensor (8-10), a bevel gear seat (8-11) and a bevel gear supporting seat (8-12);

the knotting knife sleeve (8-8) is fixed on the box body (1), the knotting knife (8-8) is movably connected inside the knotting knife sleeve (8-8), the knotting knife buckle (8-2) which is in contact with the knotting knife (8-1) is fixed at the top end of the knotting knife sleeve (8-8), the tail end of the knotting knife (8-1) is connected with the knotting gear (8-4), the back of the box body (1) is fixed with the knotting motor (8-3) through the bevel gear support seat (8-12), the knotting motor (8-3) is respectively in meshed connection with the knotting gear (8-4) and the knotting transmission gear (8-6) through the knotting motor gear (8-5), and the bevel gear set (8-7) is fixed above the knotting knife sleeve (8-8) through the bevel gear seat (8-11), the bevel gear set (8-7) is respectively connected with a knotting transmission gear (8-6) and a thread take-up cam (7-3) through bearings, and the bevel gear support seat (8-12) is symmetrically provided with a knotting sensor (8-10) and a bevel gear seat (8-11).

7. The automatic yarn splicing device for the bobbin head and tail yarns on the creel according to claim 1, wherein: the rotating mechanism (12) comprises a rotating platform (12-1), a rotating motor (12-2), a rotating platform mounting frame (12-3), a rotating platform mounting plate (12-4) and a copper column (12-5);

one side of the rotary platform mounting rack (12-3) is rotatably connected with a rotary platform (12-1), a rotary motor (12-2) for driving the rotary platform (12-1) is mounted inside the rotary platform mounting rack (12-3), and four corner positions of the rotary platform (12-1) are connected with the U-shaped cover shell (2) through copper columns (12-5).

8. The use method of the automatic yarn bobbin head and tail yarn jointing device suitable for the creel is characterized in that: the method comprises the following steps:

s1, the splicer can perform knotting action and A, B-bit rotation of yarn knotting at any spatial position, and the splicer controller PLC completes data and parameter initialization and origin zeroing operation after being electrified;

s2, after receiving the knotting coordinate information, the controller judges the AB position of the yarn drum at the joint position to realize the turnover of the joint device, the suction nozzle is reset to the initial position, the suction nozzle is connected with the exhaust fan, after the fan is started, the yarn can be sucked into the suction nozzle, and the suction nozzle moves along the outer side of the yarn drum near the yarn drum behind the creel to find the head yarn of the yarn drum;

s3, after the suction nozzle sucks the head thread of the yarn barrel, the splicer moves to the position of the yarn barrel corresponding to the same layer, the suction nozzle reaches the tail end of the yarn barrel, the fan is always in an open state in the process that the suction nozzle moves to the tail end of the yarn barrel on the same layer, so that the head thread in the suction nozzle cannot fall off due to the movement of the knotter device, the suction nozzle moves in a small range at the tail end of the yarn barrel through the splicer, the tail thread of the yarn barrel is searched and sucked, the head thread and the tail thread of the yarn are guided into a tension mechanism of the splicer device through the suction nozzle, a tension mechanism motor is controlled after the head thread and the tail thread are tightly pressed by a thread pressing mechanism, a certain tension is applied to the yarn, the knotting mechanism is controlled to realize the knotting action of the yarn, the fan is closed after the knotting, and the splicer returns to the initial state.

Technical Field

The invention relates to the technical field of automatic tail line splicing, in particular to an automatic bobbin head and tail line splicing device and method suitable for a creel.

Background

In the working process of the circular weft knitting machine, after an empty yarn drum on a creel is replaced by a new yarn drum, the head yarn of the new yarn drum needs to be connected with the tail yarn of the yarn drum which is working on the same layer, so that the circular weft knitting machine can continuously work. At present, yarn section of thick bamboo connects all to adopt artifical the joint basically, and this kind of mode of production not only recruitment is with high costs, and degree of automation is low moreover, can't really realize unmanned mill and intelligent manufacturing.

At present, an automatic splicing device on the market is mainly an air splicer, two yarns are spliced by air, and the automatic splicing device is not suitable for chemical fiber filaments and is also not suitable for yarn splicing on a creel. Therefore, it is necessary to design an automatic yarn bobbin end and tail yarn splicing device and method suitable for a creel.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the automatic yarn bobbin head and tail yarn splicing device and method suitable for the creel.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an automatic piecing devices suitable for yarn section of thick bamboo head tail wire on creel, includes the box, the top of box is fixed with the upper cover plate, install on the upper cover plate and inhale line mechanism, install U type housing on the box, rotary mechanism is installed to one side of U type housing, straining device is installed to the opposite side of U type housing, the last guiding piece of installing of straining device, the apron is installed down to the bottom of box, install thread-picking mechanism, knotting mechanism, line-pressing mechanism and guide holder on the box.

Preferably, the line suction mechanism comprises a suction nozzle motor, a suction nozzle mounting seat, a suction nozzle fixing seat, a suction nozzle initial position sensor, a suction nozzle initial position induction sheet, a suction nozzle tail end position sensor and a suction nozzle tail end position induction sheet;

the suction nozzle mount pad is fixed at the top of upper cover plate, the suction nozzle motor of being connected with the suction nozzle mount pad is installed to the bottom of upper cover plate, the suction nozzle is installed through the suction nozzle fixing base in the top of suction nozzle mount pad, suction nozzle initial position response piece and suction nozzle terminal position response piece are installed to the symmetry on the suction nozzle, suction nozzle initial position sensor and suction nozzle terminal position sensor are installed to the symmetry on the upper cover plate.

Preferably, the wire pressing mechanism comprises a crank block, a wire pressing motor, a slide rail, a connecting rod, a fixed seat, a pressing piece, a lower fixed piece, a pressing plate, a spongy cushion, a wire pressing position sensor and a pressing induction sheet;

the utility model discloses a pressing device of a motor, including box, crank piece, connecting rod, fixing base, corresponding foam-rubber cushion is installed to the top of fixing base, the line ball motor of being connected with the crank piece is installed at the rear of box, the top of crank piece is passed through the connecting rod and is connected with down the piece, down a sliding connection on the slide rail in box the place ahead, install the fixing base under pushing down the piece, the top of fixing base is fixed with the pressure disk through lower mounting, it installs the sponge cushion to correspond on piece and the pressure disk down, the afterbody one side of piece is installed down and is pressed down the response piece, press line position sensor is installed to the below of pressing down the response piece.

Preferably, the tensioning mechanism comprises a tensioning motor, an electromagnet, a tensioning rod connecting column, a tensioning motor mounting seat, a tensioning motor pressing plate and an electromagnet mounting seat;

the U type housing one side inner wall is fixed with tensioning motor mount pad, be fixed with the tensioning motor through tensioning motor pressure strip on the tensioning motor mount pad, the tensioning motor passes through the tensioning rod spliced pole to be connected with the tensioning rod of U type housing outer wall, the top of tensioning rod is fixed with the electro-magnet through the electro-magnet mount pad.

Preferably, the thread take-up mechanism comprises a thread take-up support, a thread take-up device, a thread take-up cam, a ball, a thread take-up device fulcrum shaft, a ball fulcrum shaft and a thread take-up cam mounting seat;

the take-up device is fixed on the take-up support through the take-up device fulcrum shaft, the tail end of the take-up device is connected with the ball through the ball mounting plate, the ball is fixed on the box body through the ball fulcrum shaft, the ball contacts with the take-up cam, the take-up cam is fixed on the take-up cam mounting seat, and the take-up device is connected with the spring fixed in the box body.

Preferably, the knotting mechanism comprises a knotting knife, a knotting knife buckle, a knotting motor, a knotting gear, a knotting motor gear, a knotting transmission gear, a bevel gear set, a knotting knife sleeve, a knotting sensing piece, a knotting sensor, a bevel gear seat and a bevel gear supporting seat;

the utility model discloses a knotting knife sleeve, including knotting knife sleeve, bevel gear supporting seat, bevel gear sensor and bevel gear seat, knotting knife sleeve fixes on the box, knotting knife sleeve's inside swing joint has the knotting knife, knotting knife sleeve's top is fixed with the knotting knife that contacts with the knotting knife and buckles, knotting knife sleeve's tail end is connected with the gear of knoing, the back of box is fixed with the motor of knoing through the bevel gear supporting seat, the motor of knoing is connected with the gear of knoing and the drive gear meshing of knoing respectively through the motor gear of knoing, knotting knife sleeve's top is fixed with bevel gear set through the bevel gear seat, bevel gear set passes through the bearing and is connected with the drive gear of knoing and take-up cam respectively, sensor and bevel gear seat are tied in the symmetry on the bevel gear supporting seat.

Preferably, the rotating mechanism comprises a rotating platform, a rotating motor, a rotating platform mounting frame, a rotating platform mounting plate and a copper column;

one side of rotary platform mounting bracket is rotated and is connected with rotary platform, rotary platform mounting bracket's internally mounted has the rotating electrical machines of drive rotary platform, four turning position departments of rotary platform are connected with U type cover shell through the copper post.

A use method of an automatic yarn bobbin head and tail yarn splicing device suitable for a creel comprises the following steps:

s1, the splicer can perform knotting action and A, B-bit rotation of yarn knotting at any spatial position, and the splicer controller PLC completes data and parameter initialization and origin zeroing operation after being electrified;

s2, after receiving the knotting coordinate information, the controller judges the AB position of the yarn drum at the joint position to realize the turnover of the joint device, the suction nozzle is reset to the initial position, the suction nozzle is connected with the exhaust fan, after the fan is started, the yarn can be sucked into the suction nozzle, and the suction nozzle moves along the outer side of the yarn drum near the yarn drum behind the creel to find the head yarn of the yarn drum;

s3, after the suction nozzle sucks the head thread of the yarn barrel, the splicer moves to the position of the yarn barrel corresponding to the same layer, the suction nozzle reaches the tail end of the yarn barrel, the fan is always in an open state in the process that the suction nozzle moves to the tail end of the yarn barrel on the same layer, so that the head thread in the suction nozzle cannot fall off due to the movement of the knotter device, the suction nozzle moves in a small range at the tail end of the yarn barrel through the splicer, the tail thread of the yarn barrel is searched and sucked, the head thread and the tail thread of the yarn are guided into a tension mechanism of the splicer device through the suction nozzle, a tension mechanism motor is controlled after the head thread and the tail thread are tightly pressed by a thread pressing mechanism, a certain tension is applied to the yarn, the knotting mechanism is controlled to realize the knotting action of the yarn, the fan is closed after the knotting, and the splicer returns to the initial state.

The invention has the beneficial effects that:

1. the splicer adopts a layered and partitioned design according to the principle of yarn splicing, has a clear structure and is beneficial to installation and maintenance of the device;

2. the splicer is small in size, light in overall weight, convenient to integrally install and small in occupied space;

3. the splicer can splice automatically without manual assistance.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the overall front plan structure of the present invention;

FIG. 2 is a schematic diagram of the overall three-dimensional structure of the present invention;

FIG. 3 is a schematic three-dimensional structure of the thread sucking mechanism of the present invention;

FIG. 4 is a schematic three-dimensional structure of the wire pressing mechanism of the present invention;

FIG. 5 is a schematic three-dimensional structure of the tensioning mechanism of the present invention;

FIG. 6 is a schematic view of the overall three-dimensional structure of the thread take-up mechanism and the knot tying mechanism of the present invention;

FIG. 7 is a schematic view of the knotting mechanism drive of the present invention;

FIG. 8 is a schematic three-dimensional structure of a rotary mechanism according to the present invention;

FIG. 9 is a schematic view of the creel configuration of the present invention;

FIG. 10 is a flow chart of the inventive joint process;

FIG. 11 is a flowchart illustrating overall program control in accordance with the present invention;

reference numbers in the figures: 1. a box body; 2. a U-shaped housing; 3. an upper cover plate; 4. a thread suction mechanism; 4-1, a suction nozzle motor; 4-2, a suction nozzle mounting seat; 4-3, a suction nozzle; 4-4, a suction nozzle fixing seat; 4-5, a suction nozzle initial position sensor; 4-6, a suction nozzle initial position induction sheet; 4-7, a suction nozzle tail end position sensor; 4-8, a suction nozzle tail end position induction sheet; 5. a guide; 6. a tensioning mechanism; 6-1, tensioning a motor; 6-2, an electromagnet; 6-3, tensioning rods; 6-4, connecting columns by tensioning rods; 6-5, tensioning a motor mounting seat; 6-6, tensioning a motor pressing plate; 6-7, an electromagnet mounting seat; 7. a thread take-up mechanism; 7-1, a thread take-up support; 7-2, a thread picker; 7-3, a thread take-up cam; 7-4, rolling balls; 7-5, a support shaft of a thread picker; 7-6, ball fulcrum; 7-7, a take-up cam mounting seat; 8. a knotting mechanism; 8-1, knotting knife; 8-2, knotting a cutter buckle; 8-3, a knotting motor; 8-4, knotting gears; 8-5, knotting a motor gear; 8-6, knotting the transmission gear; 8-7, a bevel gear set; 8-8, knotting a knife sleeve; 8-9, knotting the induction sheet; 8-10, a knot sensor; 8-11, a bevel gear seat; 8-12, bevel gear supporting seat; 9. a wire pressing mechanism; 9-1, a crank block; 9-2, a wire pressing motor; 9-3, a sliding rail; 9-4, connecting rod; 9-5, fixing seats; 9-6, pressing piece; 9-7, a lower fixing piece; 9-8, pressing a plate; 9-9 parts of a sponge cushion; 9-10, a line pressing position sensor; 9-11, pressing the induction sheet; 10. a guide seat; 11. a lower cover plate; 12. a rotation mechanism; 12-1, rotating the platform; 12-2, a rotating electrical machine; 12-3, rotating the platform mounting rack; 12-4, rotating the platform mounting plate; 12-5 and copper columns.

Detailed Description

The technical scheme of the invention is clearly and completely described in the following with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance.

As shown in fig. 1 to 8, the present invention provides the following technical solutions: the utility model provides an automatic piecing devices suitable for yarn section of thick bamboo head tail wire on creel, including box 1, the top of box 1 is fixed with upper cover plate 3, install on upper cover plate 3 and inhale line mechanism 4, install U type housing 2 on the box 1, rotary mechanism 12 is installed to one side of U type housing 2, straining device 6 is installed to the opposite side of U type housing 2, straining device 6 is last to be installed guide 5, apron 11 down is installed to the bottom of box 1, install thread-picking mechanism 7 on the box 1, knotting mechanism 8, line-pressing mechanism 9 and guide holder 10, every mechanism is mutually independent, and the installation of being convenient for, dismantle and maintain.

Preferably, the line suction mechanism 4 comprises a suction nozzle motor 4-1, a suction nozzle mounting seat 4-2, a suction nozzle 4-3, a suction nozzle fixing seat 4-4, a suction nozzle initial position sensor 4-5, a suction nozzle initial position sensing piece 4-6, a suction nozzle tail end position sensor 4-7 and a suction nozzle tail end position sensing piece 4-8;

a suction nozzle mounting seat 4-2 is fixed on the top of an upper cover plate 3, a suction nozzle motor 4-1 connected with the suction nozzle mounting seat 4-2 is installed at the bottom of the upper cover plate 3, a suction nozzle 4-3 is installed at the top of the suction nozzle mounting seat 4-2 through a suction nozzle fixing seat 4-4, a suction nozzle initial position induction sheet 4-6 and a suction nozzle tail end position induction sheet 4-8 are symmetrically installed on the suction nozzle 4-3, a suction nozzle initial position sensor 4-5 and a suction nozzle tail end position sensor 4-7 are symmetrically installed on the upper cover plate 3, a camera can be installed above the suction nozzle fixing seat 4-4 and used for detecting whether the suction nozzle 4-3 sucks yarn or not, the tail part of the suction nozzle 4-3 is connected with a fan, negative pressure is formed in the suction nozzle 4-3 when the fan is started to suck head and tail lines in a yarn barrel, after the suction nozzle 4-3 sucks the head and tail lines, the suction nozzle motor 4-1 is started to drive the suction nozzle 4-3 to move and bring the sucked yarn into a joint position, when the suction nozzle 4-3 is at an initial position, the horizontal position of the suction nozzle is parallel to a yarn bobbin rod in a creel, in addition, a suction nozzle initial position sensing piece 4-6 and a suction nozzle tail end position sensing piece 4-8 are respectively arranged at the front and rear positions of the suction nozzle and can sense with a suction nozzle initial position sensor 4-5 and a suction nozzle tail end position sensor 4-7 which are arranged on the upper cover plate 3 to feed back the position of the suction nozzle 4-3.

Preferably, the line pressing mechanism 9 comprises a crank block 9-1, a line pressing motor 9-2, a sliding rail 9-3, a connecting rod 9-4, a fixed seat 9-5, a lower pressing piece 9-6, a lower fixed piece 9-7, a pressure plate 9-8, a spongy cushion 9-9, a line pressing position sensor 9-10 and a lower pressing induction sheet 9-11;

a wire pressing motor 9-2 connected with a crank block 9-1 is arranged at the rear part of the box body 1, the top part of the crank block 9-1 is connected with a lower pressing piece 9-6 through a connecting rod 9-4, the lower pressing piece 9-6 is connected on a slide rail 9-3 in front of the box body 1 in a sliding way, a fixed seat 9-5 is arranged right below the bottom of the lower pressing piece 9-6, a pressure plate 9-8 is fixed at the top end of the fixed seat 9-5 through a lower fixing piece 9-7, sponge pads 9-9 are correspondingly arranged on the lower pressing piece 9-6 and the pressure plate 9-8, a lower pressing induction sheet 9-11 is arranged at one side of the tail part of the lower pressing piece 9-6, a wire pressing position sensor 9-10 is arranged below the lower pressing induction sheet 9-11, and a crank block mechanism is formed by the crank block 9-1, the connecting rod 9-4 and the slide rail 9-3, the lower fixing piece 9-7 is connected with the pressure plate 9-8, the lower fixing piece is arranged in the fixing seat 9-5, the distance between the pressure plate 9-8 and the fixing seat 9-5 can be adjusted, the sponge pads 9-9 are arranged on the pressure plate 9-8 and the cylindrical blocks of the lower fixing piece 9-6, the friction force between yarn and a mechanism is increased, the yarn is not easy to slide after being pressed, the lower fixing piece 9-6 is arranged above the pressure plate 9-8 at a distance of 5mm from the pressure plate initially, when the yarn enters the middle of the pressure plate 9-8 and the lower fixing piece 9-6, the yarn pressing motor 9-2 is started to drive the lower fixing piece 9-6 to move downwards to press the yarn, and the lower pressing induction piece 9-11 arranged on the lower fixing piece 9-6 is inducted by the pressing line position sensor 9-10, and the line pressing motor 9-2 is kept in a power-off state, so that the line pressing motor 9-2 is prevented from being overheated, after knotting is completed, the line pressing motor 9-2 rotates reversely to drive the lower pressing piece 9-6 to move upwards, and when the initial position is restored, the line pressing motor 9-2 stops rotating.

Preferably, the tensioning mechanism 6 comprises a tensioning motor 6-1, an electromagnet 6-2, a tensioning rod 6-3, a tensioning rod connecting column 6-4, a tensioning motor mounting seat 6-5, a tensioning motor pressing plate 6-6 and an electromagnet mounting seat 6-7;

a tensioning motor mounting seat 6-5 is fixed on the inner wall of one side of the U-shaped housing 2, a tensioning motor 6-1 is fixed on the tensioning motor mounting seat 6-5 through a tensioning motor pressing plate 6-6, the tensioning motor 6-1 is connected with a tensioning rod 6-3 on the outer wall of the U-shaped housing 2 through a tensioning rod connecting post 6-4, an electromagnet 6-2 is fixed above the tensioning rod 6-3 through an electromagnet mounting seat 6-7, the tensioning rod connecting post 6-4 is connected with the tensioning rod 6-3 and drives the tensioning rod 6-3 to reciprocate up and down, a triangular block is arranged on the tensioning rod 6-3, on one hand, the electromagnet 6-2 is favorable for sucking the tensioning rod 6-3, on the other hand, yarn is blocked, and the yarn is not allowed to slide down along the tensioning rod 6-3 all the time, the electromagnet 6-2 is fixed on the U-shaped cover shell 2, when the electromagnet 6-2 sucks the tension rod 6-3, the yarn can be completely tensioned, initially, the tension rod 6-3 is in a horizontal position, when the yarn enters the knotting area yarn pressing mechanism 9 to press the yarn tightly, the tensioning motor 6-1 is started, the tensioning rod 6-3 moves upwards to press the yarn backwards and upwards, the main purpose is to make the yarn be positioned at the inner side of the knotting knife 8-1, so that the yarn can form a knotting ring when rotating at the first ring of the knotting knife 8-1, at the moment, the electromagnet 6-2 is electrified to suck the tension rod 6-3, so that the yarn is kept in a tension state for knotting, after knotting is completed, the electromagnet 6-2 is powered off, the tensioning motor 6-1 moves reversely, the tensioning rod 6-3 moves downwards, and the operation is stopped when the horizontal position is reached.

Preferably, the thread take-up mechanism 7 comprises a thread take-up support 7-1, a thread take-up 7-2, a thread take-up cam 7-3, a ball 7-4, a thread take-up fulcrum 7-5, a ball fulcrum 7-6 and a thread take-up cam mounting seat 7-7;

the take-up device 7-2 is fixed on the take-up support 7-1 through a take-up device fulcrum shaft 7-5, an open groove is formed in the middle of the take-up support 7-1, the upper portion and the lower portion of the groove are 1/4 circles, yarn can conveniently enter the groove and can be located in a bonding area, the tail end of the take-up device 7-2 is connected with a ball 7-4 through a ball mounting plate, the ball 7-4 is fixed on the box body 1 through a ball fulcrum shaft 7-6, the ball 7-4 is in contact with a take-up cam 7-3, the take-up cam 7-3 is fixed on the take-up cam mounting seat 7-7, and the take-up device 7-2 is connected with a spring fixed inside the box body 1.

Preferably, the knotting mechanism 8 comprises a knotting knife 8-1, a knotting knife buckle 8-2, a knotting motor 8-3, a knotting gear 8-4, a knotting motor gear 8-5, a knotting transmission gear 8-6, a bevel gear set 8-7, a knotting knife sleeve 8-8, a knotting sensing piece 8-9, a knotting sensor 8-10, a bevel gear seat 8-11 and a bevel gear supporting seat 8-12;

the knotting knife sleeve 8-8 is fixed on the box body 1, the knotting knife 8-1 is movably connected inside the knotting knife sleeve 8-8, the knotting knife buckle 8-2 which is contacted with the knotting knife 8-1 is fixed at the top end of the knotting knife sleeve 8-8, the middle of the knotting knife buckle 8-2 is in an irregular round shape, the knotting knife 8-1 swings forwards and backwards along with the round shape in the middle of the knotting knife buckle 8-2 along with the rotation of the knotting knife 8-1 to form knife edges with different sizes to complete knotting and cut off redundant yarns, the tail end of the knotting knife 8-1 is connected with the knotting gear 8-4, the back of the box body 1 is fixed with a knotting motor 8-3 through a bevel gear support seat 8-12, the knotting motor 8-3 is respectively meshed and connected with the knotting gear 8-4 and a knotting transmission gear 8-6 through a knotting motor gear 8-5, a bevel gear set 8-7 is fixed above the knotting knife sheath 8-8 through a bevel gear seat 8-11, the bevel gear set 8-7 is respectively connected with a knotting transmission gear 8-6 and a thread take-up cam 7-3 through a bearing, and a knotting sensor 8-10 and a bevel gear seat 8-11 are symmetrically arranged on a bevel gear supporting seat 8-12.

The thread-taking-up mechanism 7 and the knotting mechanism 8 are matched with each other to complete knotting, the transmission of the thread-taking-up mechanism and the knotting mechanism is completed by a gear, and the transmission ratio of the knotting knife 8-1 to the thread-taking-up cam 7-3 is 1: 2, namely the thread taking-up cam 7-3 rotates for one circle, the knotting knife 8-1 rotates for 2 circles, the transmission schematic diagram is shown in fig. 7, the knotting motor 8-3 is connected with the knotting motor gear 8-5, the knotting motor gear 8-5 is respectively in transmission with the knotting gear 8-4 and the knotting transmission gear 8-6, the knotting transmission gear 8-6 drives the thread taking-up cam 7-3 through the bevel gear set 8-7, namely the thread taking-up mechanism 7 and the knotting mechanism 8 can be respectively driven through the knotting motor 8-3.

The concrete process of knotting is as follows: when the knotting knife 8-1 is in an initial state, the knife edge of the knotting knife 8-1 is slightly opened and vertically faces upwards, yarns are located below the knotting knife 8-1 and are not in contact with the knotting knife 8-1, when the knotting knife 8-1 rotates clockwise for a first circle, the yarns enter the inner side of the knotting knife 8-1, at the moment, the take-up cam 7-3 starts to work along with the rotation of the knotting knife 8-1 to drive the take-up device 7-2 to move outwards, and the take-up device 7-2 guides the yarns to move towards the front of the splicer, so that the knotting knife 8-1 penetrates through the inner side of the yarns to complete looping action; when the knotting knife 8-1 continuously rotates for the second circle, the knife edge is opened, due to the traction effect of the outer side of the knotting knife 8-1 on the yarn, the yarn close to the yarn pressing mechanism 9 is just positioned below the knife edge, after the yarn enters the knife edge, the knotting knife 8-1 is closed and clamps the yarn, the yarn at the clamping position is cut off by the cutting edge of the knotting knife 8-1 due to the traction effect, the tail end of the clamped yarn moves along with the movement of the knotting knife 8-1 to finish the action of drawing the yarn into the circle, then the picker 7-2 moves inwards under the action of the spring, the tail end yarn passes through the yarn circle due to the clamping effect of the knotting knife 8-1, when the yarn circle is reduced to the utmost, the knotting knife 8-1 rotates to the initial position, the tail end of the yarn is separated from the knife edge of the knotting knife 8-1 to finish the knotting action of two yarns, and the knotting yarn is shown in figure 10, and the automatic joint is completed after knotting.

Preferably, the rotating mechanism 12 comprises a rotating platform 12-1, a rotating motor 12-2, a rotating platform mounting frame 12-3, a rotating platform mounting plate 12-4 and a copper column 12-5;

one side of the rotating platform mounting frame 12-3 is rotatably connected with a rotating platform 12-1, a rotating motor 12-2 for driving the rotating platform 12-1 is arranged in the rotating platform mounting frame 12-3, four corner positions of the rotating platform 12-1 are connected with the U-shaped cover shell 2 through copper columns 12-5, a space reserved by the length of the copper columns 12-5 can enable the suction nozzle 4-3 to rotate to the side edge as much as possible to bring head and tail yarns into a knotting area, the rotating motor 12-2 is connected with the rotating platform 12-1, when the splicer needs to rotate, the rotating motor 12-2 is started, the rotating platform 12-1 drives the splicer to rotate, the reason that the splicer needs to rotate is that yarn barrels on the same layer in a yarn frame are all in a horn mouth shape, and the center position of the yarn barrels faces to a yarn frame upright post, therefore, the left side and the right side of the creel are generally divided into AB positions, as shown in fig. 9, when the A-position bobbin is used up and put into a new bobbin, the splicer is in an initial state to suck the head thread of the A-position bobbin and then suck the tail thread of the B-position bobbin, and when the B-position bobbin is used up, the splicer rotates 180 degrees to suck the head thread of the B-position bobbin and then suck the tail thread of the A-position bobbin, so that the bobbin can leave the shortest tail thread for splicing, and the replacement of the bobbin and the work of other bobbins are not influenced.

The flow of the splicer is mainly divided into two parts, namely after the A position is replaced by a new bobbin, the main process is as follows: the piecing machine is in an initial state → the fan is started, the suction nozzle returns to an initial position → the piecing machine is close to an A-position yarn drum → the suction nozzle sucks a head line → the piecing machine is close to a B-position yarn drum → the suction nozzle sucks a tail line → the suction nozzle motor is started, so that the suction nozzle rotates to bring the yarn into a knotting position → the line pressing motor is started, the pressing component moves downwards to press the yarn → the tensioning motor is started, the tensioning rod moves upwards → the electromagnet is started to suck the tensioning rod, the yarn is in a tensioning state → the knotting motor is started, the knotting → the line pressing motor rotates reversely, the pressing component moves upwards to return to the initial position → the electromagnet is closed, the tensioning motor is started, the tensioning rod moves downwards to return to the initial position → the fan is closed, and the piecing is completed.

When the B position is replaced by a new yarn cylinder, the main process is as follows: the piecing machine rotates 180 degrees clockwise → the fan starts, the suction nozzle returns to the initial position → the piecing machine is close to the yarn barrel at the B position → the suction nozzle sucks the head line → the piecing machine is close to the yarn barrel at the A position → the suction nozzle sucks the tail line → the suction nozzle motor starts, the suction nozzle rotates, the yarn is brought into the knotting position → the line pressing motor starts, the pressing component moves downwards to press the yarn → the tensioning motor starts, the tensioning rod moves upwards → the electromagnet starts, the tensioning rod sucks the tensioning rod, the yarn is in the tensioning state → the knotting motor starts, the knotting is completed → the line pressing motor rotates reversely, the pressing component moves upwards to the initial position → the electromagnet is closed, the tensioning motor starts, the tensioning rod moves downwards to the initial position → the fan is closed, the piecing machine rotates 180 degrees anticlockwise, and returns to the initial state. And the PLC is used for controlling elements such as a motor, a sensor and the like, so that the splicer can finish automatic splicing.

Referring to fig. 11, a method for using an automatic yarn bobbin head and tail yarn splicing device suitable for a creel comprises the following steps:

s1, the splicer can perform knotting action and A, B-bit rotation of yarn knotting at any spatial position, and the splicer controller PLC completes data and parameter initialization and origin zeroing operation after being electrified;

s2, after receiving the knotting coordinate information, the controller judges the AB position of the yarn drum at the joint position to realize the turnover of the joint device, the suction nozzle is reset to the initial position, the suction nozzle is connected with the exhaust fan, after the fan is started, the yarn can be sucked into the suction nozzle, and the suction nozzle moves along the outer side of the yarn drum near the yarn drum behind the creel to find the head yarn of the yarn drum;

s3, after the suction nozzle sucks the head thread of the yarn barrel, the splicer moves to the position of the yarn barrel corresponding to the same layer, the suction nozzle reaches the tail end of the yarn barrel, the fan is always in an open state in the process that the suction nozzle moves to the tail end of the yarn barrel on the same layer, so that the head thread in the suction nozzle cannot fall off due to the movement of the knotter device, the suction nozzle moves in a small range at the tail end of the yarn barrel through the splicer, the tail thread of the yarn barrel is searched and sucked, the head thread and the tail thread of the yarn are guided into a tension mechanism of the splicer device through the suction nozzle, a tension mechanism motor is controlled after the head thread and the tail thread are tightly pressed by a thread pressing mechanism, a certain tension is applied to the yarn, the knotting mechanism is controlled to realize the knotting action of the yarn, the fan is closed after the knotting, and the splicer returns to the initial state.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.