阅读说明：本技术 一种智能化全自动纱线连接装置 (Intelligent full-automatic yarn connecting device ) 是由 石志伟 史伟民 王俊茹 朱婉珍 孙磊 于 2020-11-09 设计创作，主要内容包括：本发明属于纱线连接技术领域,具体涉及一种智能化全自动纱线连接装置,包括底座、固定块、滚柱、和控制器；所述底座的下端固连有支脚；所述底座的上端固连有四个竖板；其中两个所述竖板之间固连有滑杆；所述滑杆滑动连接着两个滑板；另两个所述竖板之间转动连接着螺杆；所述螺杆与滑板滑动连接；两个所述滑板对称分布在螺杆的两端；本发明通过一号电机带动两个滑板沿着滑杆相靠近滑动与二号电机带动滑块将纱线夹紧相配合,使得两个纱线的端部融化过后能够粘在一起,从而实现了纱线连接的过程,同时通过三号电机带动滚柱对纱线接口处的焊渣进行打磨相配合,从而使得纱线焊接过后表面更加光洁,进而提高了纱线连接过后的品质。(The invention belongs to the technical field of yarn connection, and particularly relates to an intelligent full-automatic yarn connecting device which comprises a base, a fixed block, a roller and a controller, wherein the fixed block is arranged on the base; the lower end of the base is fixedly connected with a support leg; the upper end of the base is fixedly connected with four vertical plates; a sliding rod is fixedly connected between the two vertical plates; the sliding rod is connected with the two sliding plates in a sliding manner; a screw rod is rotatably connected between the other two vertical plates; the screw rod is connected with the sliding plate in a sliding manner; the two sliding plates are symmetrically distributed at two ends of the screw rod; the first motor drives the two sliding plates to slide along the sliding rods in a manner of approaching to each other, and the second motor drives the sliding blocks to clamp and match yarns, so that the end parts of the two yarns can be adhered together after being melted, and therefore the process of yarn connection is realized.)

1. The utility model provides a full-automatic yarn connecting device of intellectuality which characterized in that: comprises a base (1), a fixed block (2), a roller (3) and a controller; the lower end of the base (1) is fixedly connected with a support leg (11); the upper end of the base (1) is fixedly connected with four vertical plates (12); a sliding rod (13) is fixedly connected between the two vertical plates (12); the sliding rod (13) is connected with two sliding plates (14) in a sliding way; a screw (15) is rotationally connected between the other two vertical plates (12); the screw (15) is connected with the sliding plate (14) in a sliding way; the two sliding plates (14) are symmetrically distributed at two ends of the screw (15); threads at two ends of the screw (15) are arranged oppositely; a first motor (121) is mounted on the outer side of one of the vertical plates (12); the output shaft of the first motor (121) is connected with one end of the screw (15); the middle parts of the upper ends of the two sliding plates (14) are fixedly connected with fixed blocks (2); one end face of the fixed block (2) is rotatably connected with a screw rod (21); the screw rod (21) is in threaded connection with a sliding block (22); one end face of the fixed block (2) is fixedly connected with a slide bar (23); the slide bar (23) is connected with the slide block (22) in a sliding way; the section specification of the sliding block (22) is consistent with that of the fixed block (2); a second motor (24) is arranged on the other end face of the fixed block (2); the output shaft of the second motor (24) is connected with one end of the screw rod (21); the upper end of the base (1) is fixedly connected with a first electric push rod (4); the first electric push rod (4) is positioned between the two sliding plates (14), and the end part of the first electric push rod (4) is fixedly connected with a melting disc (41); the end surfaces of the melting discs (41) face the corresponding sliding blocks (22), and resistance wires (42) are installed inside the melting discs (41); the upper end of the base (1) is fixedly connected with two support plates (5); the two support plates (5) are positioned between the two sliding plates (14), the two support plates (5) are symmetrically distributed on two sides of the first electric push rod (4), and the opposite surfaces of the two support plates (5) are fixedly connected with a second electric push rod (51); the end part of the second electric push rod (51) is fixedly connected with a connecting plate (52); a third motor (53) is arranged on one surface of each of the two connecting plates (52) opposite to each other; the output shaft of the third motor (53) is connected with the roller (3); an annular groove (31) is formed in the outer wall of the roller (3); the section of the annular groove (31) is semicircular, and the section radius of the annular groove (31) is consistent with the radius of the yarn; the controller is used for controlling the yarn connecting device to automatically operate.

2. The intelligent full-automatic yarn connecting device according to claim 1, characterized in that: a rectangular groove (25) is formed in one surface, close to the sliding block (22), of the fixed block (2); the rectangular groove (25) is connected with the baffle (251) in a sliding way, and a first spring (252) is also arranged in the rectangular groove (25); one end of the first spring (252) is connected with the bottom of the rectangular groove (25), and the other end of the first spring is connected with the baffle (251).

3. An intelligent full-automatic yarn connecting device according to claim 2, characterized in that: a through hole (26) is formed in one surface, far away from the sliding block (22), of the fixed block (2); the through hole (26) is communicated with the bottom of the rectangular groove (25); an air pipe (27) is fixedly connected with the orifice of the through hole (26); the other end of the air pipe (27) faces the end of the corresponding yarn.

4. An intelligent full-automatic yarn connecting device according to claim 3, characterized in that: a circular groove (32) is arranged in the annular groove (31); the circular grooves (32) are uniformly distributed in the annular groove (31), the circular grooves (32) are connected with the scraping rods (321) in a sliding mode, and second springs (322) are further arranged in the circular grooves (32); one end of the second spring (322) is connected with the bottom of the circular groove (32), and the other end is connected with the scraping rod (321).

5. An intelligent full-automatic yarn connecting device according to claim 4, characterized in that: a strip-shaped groove (323) is formed in the end part of the scraping rod (321); the strip-shaped grooves (323) are arranged in a crossed mode, and the cross section of each strip-shaped groove (323) is semicircular.

6. An intelligent full-automatic yarn connecting device according to claim 5, characterized in that: an air hole (33) is also arranged in the annular groove (31); the air holes (33) are uniformly distributed on the annular groove (31), and the other ends of the air holes (33) are communicated with the bottom of the circular groove (32).

Technical Field

The invention belongs to the technical field of yarn connection, and particularly relates to an intelligent full-automatic yarn connecting device.

Background

The yarn is a textile, various textile fibers are processed into products with certain fineness, is used for weaving, rope making, thread making, knitting, embroidery and the like, and is divided into short staple yarn, continuous filament yarn and the like; in the process of cloth spinning by using yarns more than 0.5 cm, when one yarn is used up, the other yarn can be connected with the original yarn so as to continue spinning, the yarn connection method comprises two methods, one method is usually knotted, but the joint yarn tails at the yarn interface after knotting are distributed on two sides of the yarn so as to influence the attractiveness of the cloth, and the other method is used for melting and sticking the ends of the two yarns together after heating so as to achieve the purpose of connection.

Some technical solutions related to intelligent fully automatic yarn connecting devices have appeared in the prior art, for example, a chinese patent with application number CN200580030344.6 discloses a yarn splicing device, which includes a splicing column having splicing grooves to which pneumatic pressure can be applied, and a control element which can be driven by a single motor; connected to the control element, by means of an actuating element, at least one yarn tensioning/cutting unit for fixing the ends to be spliced and cutting them, and a yarn feeder for positioning the ends to be prepared in the splicing slot, in which the control element consists of a pivotally mounted control element comprising external teeth meshing with the drive pinion of a single drive, which can be controlled in a defined manner, and to which the actuating elements for the yarn tensioning/cutting unit and the yarn feeder are rotationally fixed, this solution enabling, on the one hand, variable remote adjustment of the pivoting path of the yarn feeder, and, on the other hand, a manufacturing cost that is significantly lower than that of the known yarn splicing devices; but this technical scheme still can not solve present yarn and connect the back interface welding slag thick, influences the homogeneity on yarn surface to influence the problem of the feel of whole cloth, and then cause this technical scheme's limitation.

In view of this, in order to overcome the above technical problems, the present invention provides an intelligent full-automatic yarn connecting device, which adopts a special connecting device to solve the above technical problems.

Disclosure of Invention

In order to make up for the defects of the prior art, the invention provides an intelligent full-automatic yarn connecting device, wherein a first motor drives two sliding plates to slide along a sliding rod in a manner of approaching to each other, and a second motor drives a sliding block to clamp and match yarns, so that the end parts of the two yarns can be adhered together after being melted, the yarn connecting process is realized, and meanwhile, a third motor drives a roller to polish and match welding slag at a yarn interface, so that the surface of the welded yarn is smoother, and the quality of the connected yarns is improved.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an intelligent full-automatic yarn connecting device, which comprises a base, a fixed block, a roller and a controller, wherein the fixed block is arranged on the base; the lower end of the base is fixedly connected with a support leg; the upper end of the base is fixedly connected with four vertical plates; a sliding rod is fixedly connected between the two vertical plates; the sliding rod is connected with the two sliding plates in a sliding manner; a screw rod is rotatably connected between the other two vertical plates; the screw rod is connected with the sliding plate in a sliding manner; the two sliding plates are symmetrically distributed at two ends of the screw rod; the threads at the two ends of the screw rod are arranged oppositely; a first motor is arranged on the outer side of one of the vertical plates; the output shaft of the first motor is connected with one end of the screw rod; the middle parts of the upper ends of the two sliding plates are fixedly connected with fixed blocks; one end face of the fixed block is rotatably connected with a screw rod; the screw rod is in threaded connection with the sliding block; one end face of the fixed block is fixedly connected with a slide bar; the slide bar is connected with the slide block in a sliding way; the section specification of the sliding block is consistent with that of the fixed block; a second motor is arranged on the other end face of the fixed block; the output shaft of the second motor is connected with one end of the screw rod; the upper end of the base is fixedly connected with a first electric push rod; the first electric push rod is positioned between the two sliding plates, and the end part of the first electric push rod is fixedly connected with a melting disc; the end surfaces of the melting disks face the corresponding sliding blocks, and resistance wires are arranged inside the melting disks; the upper end of the base is fixedly connected with two support plates; the two support plates are positioned between the two sliding plates, the two support plates are symmetrically distributed on two sides of the first electric push rod, and the opposite surfaces of the two support plates are fixedly connected with the second electric push rod; the end part of the second electric push rod is fixedly connected with a connecting plate; a third motor is arranged on the opposite surface of each of the two connecting plates; the output shaft of the third motor is connected with the roller; an annular groove is formed in the outer wall of the roller; the section of the annular groove is semicircular, and the radius of the section of the annular groove is consistent with that of the yarn; the controller is used for controlling the yarn connecting device to automatically operate;

during working, the ends of the two yarns are heated and melted and adhered together in the yarn connection process, so that the connection purpose is achieved, welding slag exists at the joint of the two yarns in the connection method, the welding slag can affect the uniformity of the surfaces of the yarns, and the hand feeling of the whole cloth is affected; therefore, in the invention, a worker places two yarns to be connected between the corresponding sliding block and the corresponding fixed block, the controller is started to control the second motor to rotate, the second motor can drive the fixedly connected screw rod to rotate, the screw rod can drive the sliding block to slide along the sliding rod, the sliding block slides along the sliding rod to clamp the yarns, the length of the clamped yarns, which is exposed out of the sliding block and the fixed block, is adjusted according to the actual condition, so that the central axis of the yarns is vertical to the melting disc, the controller energizes resistance wires in the melting disc, so that the melting disc is heated to the melting point of the yarns, the first electric push rod can control the melting disc to move between the two yarns, then the first motor drives the screw rod to rotate, the screw rod rotates to drive the two sliding plates to slide close along the sliding rod, so that the two sliding plates drive the corresponding yarns to move close, the end parts of the two yarns are, then the first electric push rod can control the melting disc to be far away from the position between two yarns, the two sliding plates can control the end parts of the two yarns to be contacted, the two yarns are welded together along with the cooling of the end parts of the yarns, the controller can control the second electric push rod to extend, so that the annular groove on the roller is driven to be contacted with the yarns through the second electric push rod, the third motor can drive the roller to rotate, welding slag on the yarns can fall off under the friction action of the roller, the smoothness of the surface after the two yarns are connected is ensured, the two yarns are connected, the second electric push rod drives the roller to be far away from the yarns after the yarns are connected, and the second motor drives the sliding block to be far away from the fixed block, so that the process of taking the yarns down can be; the first motor drives the two sliding plates to slide along the sliding rods in a manner of approaching to each other, and the second motor drives the sliding blocks to clamp and match yarns, so that the end parts of the two yarns can be adhered together after being melted, and therefore the process of yarn connection is realized.

Preferably, a rectangular groove is formed in one surface, close to the sliding block, of the fixed block; the rectangular groove is connected with a baffle in a sliding manner, and a first spring is also arranged in the rectangular groove; one end of the first spring is connected with the bottom of the rectangular groove, and the other end of the first spring is connected with the baffle; when the device works, a worker needs to control two yarns to be at the same horizontal height every time when clamping the yarns, otherwise, the problem of welding deviation of the two yarns is caused; therefore, the baffle plate slides along the rectangular groove through the first spring, so that the edge of the baffle plate is abutted against the sliding block, and a worker only needs to place yarns on the baffle plate to ensure that the two yarns are at the same horizontal height, so that the working efficiency of the worker is greatly improved, and meanwhile, in the process that the second motor drives the sliding block to be close to the fixed block, the baffle plate can slide along the rectangular groove, so that the baffle plate cannot obstruct the use of the sliding block; according to the yarn connecting device, the yarn is blocked by the baffle plate and is matched with the baffle plate in a sliding manner along the rectangular groove, so that workers do not need to control the yarn to be clamped at the same level before welding each time, the yarn connecting efficiency is greatly improved, and the practicability of the yarn connecting device is improved.

Preferably, a through hole is formed in one surface, far away from the sliding block, of the fixed block; the through hole is communicated with the bottom of the rectangular groove; the orifice of the through hole is fixedly connected with an air pipe; the other end of the air pipe faces the end part of the corresponding yarn; during working, impurities at the ends of the yarns can influence the connection effect between the two yarns after welding; therefore, in the process that the baffle plate slides along the rectangular groove, the space in the rectangular groove is reduced, so that the air pressure in the rectangular groove is increased, the air in the rectangular groove is discharged along the through hole, the gas discharged from the through hole is discharged along the other end of the air pipe, the discharged gas can impact the end part of the yarn, impurities on the end part of the yarn fall off under the action of the impact of the air flow, and the cleanness of the end part of the yarn is ensured; according to the invention, the second motor drives the sliding block to extrude the baffle and the baffle is matched with the baffle in a sliding manner along the rectangular groove, so that gas in the rectangular groove impacts the end part of the yarn, impurities on the end part of the yarn fall off under the impact of the gas, the cleanness of the yarn is further improved, and the connection effect of the yarn is improved.

Preferably, a circular groove is arranged in the annular groove; the circular grooves are uniformly distributed in the annular groove, the scraping rods are connected in the circular grooves in a sliding mode, and second springs are further arranged in the circular grooves; one end of the second spring is connected with the bottom of the circular groove, and the other end of the second spring is connected with the scraping rod; when the roller type yarn polishing device works, if yarns with different diameters need to be connected, the effect of polishing the yarns by the roller can be achieved only by ensuring that the section radius of the annular groove is consistent with the radius of the yarns; therefore, the second spring drives the scraping rod to slide along the circular groove, so that the scraping rod is abutted against the outer wall of the yarn under the action of the second spring, the roller can drive the scraping rod to polish the interface of the yarn, the effect of polishing the yarn with different diameters by the roller is realized, and the practicability of the roller is enhanced.

Preferably, the end part of the scraping rod is provided with a strip-shaped groove; the strip-shaped grooves are arranged in a crossed manner, and the cross sections of the strip-shaped grooves are semicircular; when the scraping rod is in operation, in the process that the roller drives the scraping rod to polish the outer wall of the yarn, the end part of the scraping rod is provided with the strip-shaped groove, so that the contact area between the end part of the scraping rod and the outer surface of the yarn is reduced, the friction force between the end part of the scraping rod and the outer wall of the yarn is increased, the effect of scraping welding slag by the scraping rod is improved, the welding slag at the interface of the yarn is scraped to fall off more quickly, and the actual application effect of the scraping rod is enhanced.

Preferably, the annular groove is internally provided with an air hole; the air holes are uniformly distributed on the annular groove, and the other end of each air hole is communicated with the bottom of the circular groove; the during operation, the roller drives the scraper and polishes the in-process to the welding slag of yarn kneck, and the scraper of keeping away from the yarn receives can slide to the notch along the circular recess under the effect of No. two springs, and the scraper that is close to the yarn receives the extrusion of yarn and slides to the tank bottom along the circular recess down to make the gas in the circular recess discharge along the other end of gas pocket, thereby make the welding slag of yarn kneck can also realize the function of clearance when polishing, has further improved the cleaning nature after the yarn is connected.

The invention has the following beneficial effects:

1. the first motor drives the two sliding plates to slide along the sliding rods in a manner of approaching to each other, and the second motor drives the sliding blocks to clamp and match yarns, so that the end parts of the two yarns can be adhered together after being melted, and therefore the process of yarn connection is realized.

2. According to the yarn connecting device, the yarn is blocked by the baffle plate and is matched with the baffle plate in a sliding manner along the rectangular groove, so that workers do not need to control the yarn to be clamped at the same level before welding each time, the yarn connecting efficiency is greatly improved, and the practicability of the yarn connecting device is improved.

3. According to the invention, the second motor drives the sliding block to extrude the baffle and the baffle is matched with the baffle in a sliding manner along the rectangular groove, so that gas in the rectangular groove impacts the end part of the yarn, impurities on the end part of the yarn fall off under the impact of the gas, the cleanness of the yarn is further improved, and the connection effect of the yarn is improved.

Drawings

The invention is further described with reference to the following figures and embodiments.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is an enlarged view at B in FIG. 1;

FIG. 4 is a perspective view of a fixed block and a slider in the present invention;

FIG. 5 is a perspective view of the roller of the present invention;

FIG. 6 is an enlarged view at C of FIG. 5;

FIG. 7 is a cross-sectional view of the roller of the present invention;

FIG. 8 is an enlarged view at D of FIG. 7;

in the figure: the device comprises a base 1, support legs 11, a vertical plate 12, a first motor 121, a sliding rod 13, a sliding plate 14, a screw rod 15, a fixed block 2, a screw rod 21, a sliding block 22, a sliding rod 23, a second motor 24, a rectangular groove 25, a baffle 251, a first spring 252, a through hole 26, an air pipe 27, a roller 3, an annular groove 31, a circular groove 32, a scraping rod 321, a second spring 322, a strip-shaped groove 323, an air hole 33, a first electric push rod 4, a melting disc 41, a resistance wire 42, a support plate 5, a second electric push rod 51, a connecting plate 52 and a third motor 53.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 8, the intelligent full-automatic yarn connecting device of the present invention comprises a base 1, a fixing block 2, a roller 3, and a controller; the lower end of the base 1 is fixedly connected with a support leg 11; the upper end of the base 1 is fixedly connected with four vertical plates 12; a sliding rod 13 is fixedly connected between the two vertical plates 12; the sliding rod 13 is connected with two sliding plates 14 in a sliding way; a screw 15 is rotatably connected between the other two vertical plates 12; the screw rod 15 is connected with the sliding plate 14 in a sliding way; the two sliding plates 14 are symmetrically distributed at two ends of the screw rod 15; the threads at the two ends of the screw rod 15 are arranged oppositely; a first motor 121 is arranged on the outer side of one of the vertical plates 12; the output shaft of the first motor 121 is connected with one end of the screw rod 15; the middle parts of the upper ends of the two sliding plates 14 are fixedly connected with fixed blocks 2; one end face of the fixed block 2 is rotatably connected with a screw rod 21; the screw rod 21 is in threaded connection with a sliding block 22; one end face of the fixed block 2 is fixedly connected with a slide bar 23; the slide bar 23 is connected with the slide block 22 in a sliding way; the section specification of the sliding block 22 is consistent with that of the fixed block 2; a second motor 24 is arranged on the other end face of the fixed block 2; the output shaft of the second motor 24 is connected with one end of the screw rod 21; the upper end of the base 1 is fixedly connected with a first electric push rod 4; the first electric push rod 4 is positioned between the two sliding plates 14, and the end part of the first electric push rod 4 is fixedly connected with a melting disc 41; the end surfaces of the melting disks 41 face the corresponding sliding blocks 22, and resistance wires 42 are arranged inside the melting disks 41; the upper end of the base 1 is fixedly connected with two support plates 5; the two support plates 5 are positioned between the two sliding plates 14, the two support plates 5 are symmetrically distributed on two sides of the first electric push rod 4, and the opposite surfaces of the two support plates 5 are fixedly connected with a second electric push rod 51; the end part of the second electric push rod 51 is fixedly connected with a connecting plate 52; a third motor 53 is arranged on one opposite surface of each of the two connecting plates 52; the output shaft of the third motor 53 is connected with the roller 3; an annular groove 31 is formed in the outer wall of the roller 3; the section of the annular groove 31 is semicircular, and the section radius of the annular groove 31 is consistent with the radius of the yarn; the controller is used for controlling the yarn connecting device to automatically operate;

during working, the ends of the two yarns are heated and melted and adhered together in the yarn connection process, so that the connection purpose is achieved, welding slag exists at the joint of the two yarns in the connection method, the welding slag can affect the uniformity of the surfaces of the yarns, and the hand feeling of the whole cloth is affected; therefore, in the invention, a worker places two yarns to be connected between the corresponding sliding block 22 and the corresponding fixed block 2, the controller is started to control the second motor 24 to rotate, the second motor 24 can drive the fixedly connected screw rod 21 to rotate, the screw rod 21 can drive the sliding block 22 to slide along the sliding rod 23, so that the sliding block 22 slides along the sliding rod 23 and then clamps the yarns, the length of the clamped yarns exposed out of the sliding block 22 and the fixed block 2 is adjusted according to actual conditions, thereby ensuring that the central axis of the yarns is vertical to the melting disc 41, the controller energizes the resistance wire 42 in the melting disc 41, so that the melting disc 41 is heated to the melting point of the yarns, the first electric push rod 4 can control the melting disc 41 to move between the two yarns, then the first motor 121 drives the screw rod 15 to rotate, the screw rod 15 rotates to drive the two sliding plates 14 to slide close to the sliding rod 13, so that the two sliding plates 14 drive the corresponding yarns, the ends of two yarns are contacted with the melting disc 41 and then melted, then the melting disc 41 is controlled by the electric push rod 4 to be far away from the position between the two yarns, the ends of the two yarns are controlled by the two sliding plates 14 to be contacted, the two yarns are welded together along with the cooling of the ends of the yarns, the controller controls the electric push rod 51 to extend, so that the annular groove 31 on the roller 3 is driven by the electric push rod 51 to be contacted with the yarns, the roller 3 is driven by the motor 53 to rotate, welding slag on the yarns falls off under the friction action of the roller 3, the smoothness of the surface after the two yarns are connected is ensured, the two yarns are connected, after the yarns are connected, the electric push rod 51 drives the roller 3 to be far away from the yarns, and the motor 24 drives the sliding block 22 to be far away from the fixed block 2, so that the yarns can be taken down; according to the invention, the first motor 121 drives the two sliding plates 14 to slide close to each other along the sliding rod 13, and the second motor 24 drives the sliding block 22 to clamp and match yarns, so that the end parts of the two yarns can be adhered together after being melted, thereby realizing the process of yarn connection, and meanwhile, the third motor 53 drives the roller 3 to polish and match welding slag at the yarn interface, so that the surface of the yarn after being welded is smoother, and the quality of the yarn after being connected is improved.

As an embodiment of the present invention, a rectangular groove 25 is formed on one side of the fixed block 2 close to the slider 22; the rectangular groove 25 is connected with a baffle 251 in a sliding manner, and a first spring 252 is also arranged in the rectangular groove 25; one end of the first spring 252 is connected with the bottom of the rectangular groove 25, and the other end is connected with the baffle 251;

when the device works, a worker needs to control two yarns to be at the same horizontal height every time when clamping the yarns, otherwise, the problem of welding deviation of the two yarns is caused; therefore, in the invention, the baffle 251 slides along the rectangular groove 25 through the first spring 252, so that the edge of the baffle 251 is abutted against the slider 22, and a worker only needs to place yarns on the baffle 251 to ensure that the two yarns are at the same horizontal height, thereby greatly improving the working efficiency of the worker, and meanwhile, in the process that the slider 22 is driven by the second motor 24 to be close to the fixed block 2, the baffle 251 can slide along the rectangular groove 25, so that the baffle 251 cannot obstruct the use of the slider 22; according to the yarn connecting device, the yarn is blocked by the baffle 251 and is matched with the baffle 251 in a sliding manner along the rectangular groove 25, so that workers do not need to control the yarn to be clamped at the same level before welding each time, the yarn connecting efficiency is greatly improved, and the practicability of the yarn connecting device is improved.

As an embodiment of the present invention, a through hole 26 is provided on a side of the fixed block 2 away from the slider 22; the through hole 26 is communicated with the bottom of the rectangular groove 25; the orifice of the through hole 26 is fixedly connected with an air pipe 27; the other end of the air pipe 27 faces the end of the corresponding yarn;

during working, impurities at the ends of the yarns can influence the connection effect between the two yarns after welding; therefore, in the process that the baffle 251 slides along the rectangular groove 25, the space in the rectangular groove 25 is reduced, so that the air pressure in the rectangular groove 25 is increased, the air in the rectangular groove 25 is discharged along the through hole 26, the air discharged from the through hole 26 is discharged along the other end of the air pipe 27, the discharged air can impact the end part of the yarn, impurities on the end part of the yarn fall off under the impact of the air flow, and the cleanness of the end part of the yarn is ensured; according to the invention, the second motor 24 drives the sliding block 22 to extrude the baffle 251 and the baffle 251 is matched with the baffle 251 in a sliding manner along the rectangular groove 25, so that gas in the rectangular groove 25 impacts the end part of the yarn, impurities on the end part of the yarn fall off under the impact of the gas, the cleanness of the yarn is further improved, and the connection effect of the yarn is improved.

As an embodiment of the present invention, a circular groove 32 is provided in the annular groove 31; the circular grooves 32 are uniformly distributed in the annular groove 31, the scraping rods 321 are connected in the circular grooves 32 in a sliding manner, and a second spring 322 is also arranged in the circular grooves 32; one end of the second spring 322 is connected with the bottom of the circular groove 32, and the other end is connected with the scraping rod 321;

when the roller type yarn polishing machine works, if yarns with different diameters need to be connected, the effect of polishing the yarns by the roller 3 can be achieved only by ensuring that the section radius of the annular groove 31 is consistent with the radius of the yarns; therefore, in the invention, the second spring 322 drives the scraping rod 321 to slide along the circular groove 32, so that the scraping rod 321 is abutted against the outer wall of the yarn under the action of the second spring 322, the roller 3 can drive the scraping rod 321 to polish the interface of the yarn, the effect of polishing the yarns with different diameters by the roller 3 is realized, and the practicability of the roller 3 is enhanced.

As an embodiment of the present invention, the end of the scraping bar 321 is provided with a strip-shaped groove 323; the strip-shaped grooves 323 are arranged in a crossed manner, and the cross section of each strip-shaped groove 323 is semicircular; in the working process, in the roller 3 drives the scraping rod 321 to polish the outer wall of the yarn, the strip-shaped groove 323 is formed in the end portion of the scraping rod 321, so that the contact area between the end portion of the scraping rod 321 and the outer surface of the yarn is reduced, the friction force between the end portion of the scraping rod 321 and the outer wall of the yarn is increased, the effect of scraping the welding slag by the scraping rod 321 is improved, the welding slag at the yarn interface is scraped to fall off more quickly, and the actual application effect of the scraping rod 321 is enhanced.

As an embodiment of the present invention, the annular groove 31 is further provided with an air hole 33 therein; the air holes 33 are uniformly distributed on the annular groove 31, and the other ends of the air holes 33 are communicated with the bottom of the circular groove 32; the during operation, roller 3 drives the scum 321 of yarn kneck and polishes the in-process, the scum 321 of keeping away from the yarn receives can slide to the notch along circular slot 32 under the effect of No. two spring 322, the scum 321 that is close to the yarn receives the extrusion of yarn and slides to the tank bottom along circular slot 32 down, thereby make the gas in the circular slot 32 discharge along the other end of gas pocket 33, thereby make the scum of yarn kneck can also realize the function of clearance when polishing, the cleanability after the yarn is connected has further been improved.

When the yarn welding machine works, a worker places two yarns to be connected between the corresponding sliding block 22 and the corresponding fixed block 2, the controller is started to control the second motor 24 to rotate, the second motor 24 can drive the fixedly connected screw rod 21 to rotate, the screw rod 21 can drive the sliding block 22 to slide along the sliding rod 23, the sliding block 22 slides along the sliding rod 23 to clamp the yarns, the length of the clamped yarns, which is exposed out of the sliding block 22 and the fixed block 2, is adjusted according to actual conditions, so that the central axis of the yarns is perpendicular to the melting disc 41, the controller energizes the resistance wire 42 in the melting disc 41, so that the melting disc 41 is heated to the melting point of the yarns, the first electric push rod 4 can control the melting disc 41 to move between the two yarns, then the first motor 121 drives the screw rod 15 to rotate, the screw rod 15 rotates to drive the two sliding plates 14 to slide close to the sliding rod 13, so that the two sliding plates 14 drive the corresponding yarns, the ends of two yarns are contacted with the melting disc 41 and then melted, then the melting disc 41 is controlled by the electric push rod 4 to be far away from the position between the two yarns, the ends of the two yarns are controlled by the two sliding plates 14 to be contacted, the two yarns are welded together along with the cooling of the ends of the yarns, the controller controls the electric push rod 51 to extend, so that the annular groove 31 on the roller 3 is driven by the electric push rod 51 to be contacted with the yarns, the roller 3 is driven by the motor 53 to rotate, welding slag on the yarns falls off under the friction action of the roller 3, the smoothness of the surface after the two yarns are connected is ensured, the two yarns are connected, after the yarns are connected, the electric push rod 51 drives the roller 3 to be far away from the yarns, and the motor 24 drives the sliding block 22 to be far away from the fixed block 2, so that the yarns can be taken down; the baffle 251 slides along the rectangular groove 25 through the first spring 252, so that the edge of the baffle 251 is abutted against the sliding block 22, and a worker only needs to place yarns on the baffle 251 to ensure that the two yarns are at the same horizontal height, so that the working efficiency of the worker is greatly improved, and meanwhile, in the process that the second motor 24 drives the sliding block 22 to be close to the fixed block 2, the baffle 251 can slide along the rectangular groove 25, so that the baffle 251 cannot obstruct the use of the sliding block 22; when the baffle 251 slides along the rectangular groove 25, the space in the rectangular groove 25 is reduced, so that the air pressure in the rectangular groove 25 is increased, the air in the rectangular groove 25 is discharged along the through hole 26, the air discharged from the through hole 26 is discharged along the other end of the air pipe 27, the discharged air can impact the end of the yarn, impurities on the end of the yarn fall off under the impact of the air flow, and the cleanness of the end of the yarn is ensured; the second spring 322 drives the scraping rod 321 to slide along the circular groove 32, so that the scraping rod 321 is supported against the outer wall of the yarn under the action of the second spring 322, the roller 3 can drive the scraping rod 321 to polish the interface of the yarn, the effect of polishing the yarns with different diameters by the roller 3 is realized, the contact area between the end part of the scraping rod 321 and the outer surface of the yarn is reduced by arranging the strip-shaped groove 323 at the end part of the scraping rod 321, the friction force between the end part of the scraping rod 321 and the outer wall of the yarn is increased, the effect of scraping the welding slag by the scraping rod 321 is improved, the welding slag at the interface of the yarn is scraped to fall off more quickly, the roller 3 drives the scraping rod 321 to polish the welding slag at the interface of the yarn, the scraping rod 321 far away from the yarn can slide to the notch along the circular groove 32 under the action of the second spring 322, the scraping rod 321 close to the yarn slides to the bottom of the circular groove 32 under the extrusion of the yarn, therefore, the gas in the circular groove 32 is discharged along the other end of the air hole 33, and the welding slag at the yarn interface can be polished and cleaned at the same time.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.