阅读说明：本技术 一种细纱收卷机构 (Spun yarn winding mechanism ) 是由 江涛 于 2019-12-05 设计创作，主要内容包括：本发明涉及细纱机技术领域,具体是涉及一种细纱收卷机构,包括有机架、卷绕筒、第二旋转驱动器,卷绕筒的轴部与机架可旋转连接并且水平设置,第二旋转驱动器与机架固定连接并且其输出轴与卷绕筒的轴部传动连接,卷绕筒的输入侧设置有与机架固定连接的直线往复滑台,直线往复滑台的活动部安装有活动引导架,活动引导架上设置有沿着水平并且垂直于卷绕筒轴线方向贯穿活动引导架的第二圆孔,第二圆孔与活动引导架的连接处圆滑过渡,直线往复滑台的行程等于卷绕筒的工作部轴向长度；该技术方案解决了细纱可能聚集在卷绕筒一处,导致卷绕筒受力不均、寿命下降的问题。(The invention relates to the technical field of spinning frames, in particular to a spun yarn winding mechanism which comprises a rack, a winding drum and a second rotary driver, wherein the shaft part of the winding drum is rotatably connected with the rack and is horizontally arranged, the second rotary driver is fixedly connected with the rack, the output shaft of the second rotary driver is in transmission connection with the shaft part of the winding drum, the input side of the winding drum is provided with a linear reciprocating sliding table fixedly connected with the rack, the movable part of the linear reciprocating sliding table is provided with a movable guide frame, the movable guide frame is provided with a second round hole penetrating through the movable guide frame along the horizontal direction and the direction vertical to the axial line of the winding drum, the joint of the second round hole and the movable guide frame is in smooth transition, and the stroke of the linear reciprocating sliding table is equal to the axial length of the; the technical scheme solves the problems that spun yarns are possibly gathered at one position of the winding drum, so that the winding drum is uneven in stress and reduced in service life.)

1. A spun yarn winding mechanism comprises a frame (1), a winding drum (8) and a second rotary driver (9), wherein the shaft part of the winding drum (8) is rotatably connected with the frame (1) and horizontally arranged, the second rotary driver (9) is fixedly connected with the frame (1) and the output shaft of the second rotary driver is in transmission connection with the shaft part of the winding drum (8), the winding device is characterized in that a linear reciprocating sliding table (7) fixedly connected with a rack (1) is arranged on the input side of a winding drum (8), a movable guide frame (6) is installed on the movable part of the linear reciprocating sliding table (7), a second round hole (6 a) penetrating through the movable guide frame (6) along the horizontal direction and perpendicular to the axial direction of the winding drum (8) is formed in the movable guide frame (6), the joint of the second round hole (6 a) and the movable guide frame (6) is in smooth transition, and the stroke of the linear reciprocating sliding table (7) is equal to the axial length of the working part of the winding drum (8).

2. The spun yarn winding mechanism according to claim 1, wherein a first feeding wheel (2), a tension wheel (3) and a second feeding wheel (4) are arranged on the input side of the movable guide frame (6) in the order of the spun yarn input direction, the first feeding wheel (2), the tension wheel (3) and the second feeding wheel (4) are located on the same vertical plane, the shaft parts of the first feeding wheel (2) and the second feeding wheel (4) are rotatably connected with the frame (1) and horizontally arranged, the shaft part of the tension wheel (3) is horizontally arranged and always moves in a direction away from the first feeding wheel (2) and the second feeding wheel (4), and the spun yarn passes through the second circular hole (6 a) after bypassing the working parts of the first feeding wheel (2), the tension wheel (3) and the second feeding wheel (4).

3. The spun yarn winding mechanism according to claim 2, wherein the first feeding wheel (2) comprises a first fine grinding wheel (2 a) and first bearing seats (2 b) arranged at two ends of the shaft part of the first fine grinding wheel (2 a), the first bearing seats (2 b) are fixedly connected with the frame (1), and the shaft part of the first fine grinding wheel (2 a) is horizontally arranged; the second feeding wheel (4) and the first feeding wheel (2) have the same structure, and the axes of the second feeding wheel (4) and the first feeding wheel (2) are positioned on the same horizontal plane.

4. The spun yarn winding mechanism according to claim 2, wherein the tension wheel (3) comprises a second fine grinding wheel (3 a), a second bearing seat (3 b), a swing arm (3 c), a first hinge (3 d) and a rebound mechanism, the second bearing seat (3 b) is installed at two ends of a shaft part of the second fine grinding wheel (3 a), the second bearing seat (3 b) is fixedly connected with one end of the swing arm (3 c), the other end of the swing arm (3 c) is rotatably installed on the frame (1) through the first hinge (3 d), and a fixed end and a movable end of the rebound mechanism are respectively hinged with the middle parts of the frame (1) and the swing arm (3 c).

5. The spun yarn winding mechanism according to any one of claims 3 or 4, wherein the working surface of the first fine grinding wheel (2 a) is in a shape of a smooth groove, and the working surface of the second fine grinding wheel (3 a) is in a shape of a smooth groove.

6. The spun yarn winding mechanism according to claim 4, wherein the rebound mechanism comprises a second hinge (3 e), a tension gas spring (3 f) and a pin (3 g), one end of the tension gas spring (3 f) is rotatably mounted at the middle part of the swing arm (3 c) through the pin (3 g), and the other end of the tension gas spring (3 f) is rotatably mounted on the frame (1) through the second hinge (3 e).

7. The spun yarn winding mechanism according to claim 2, wherein a fixed guide ring (5) fixedly connected with the frame (1) is arranged between the second feeding wheel (4) and the movable guide frame (6), a first circular hole (5 a) horizontally penetrating through the fixed guide ring (5) is formed in the fixed guide ring (5), the axis of the first circular hole (5 a) and the axis of the second feeding wheel (4) are located on the same horizontal plane, the axis of the first circular hole (5 a) is perpendicular to the axis of the second feeding wheel (4), the axis of the first circular hole (5 a) is located on the symmetrical plane of the second feeding wheel (4), and the connection between the first circular hole (5 a) and the fixed guide ring (5) is in smooth transition.

8. The spun yarn winding mechanism as claimed in claim 1, wherein the linear reciprocating sliding table (7) comprises a sliding table (7 a), a sliding block (7 b), a link mechanism (7 c), a crankshaft (7 d) and a first rotary driver (7 e), the sliding table (7 a) is horizontally arranged and fixedly connected with the frame (1), the sliding block (7 b) is in sliding fit with the sliding table (7 a), the movable guide frame (6) is fixedly connected with the sliding block (7 b), the shaft part of the crankshaft (7 d) is horizontally arranged and rotatably connected with the frame (1), the output shaft of the first rotary driver (7 e) is in transmission connection with the shaft part of the crankshaft (7 d), and two ends of the link mechanism (7 c) are respectively hinged with the sliding block (7 b) and the driving shaft of the crankshaft (7 d).

9. The spun yarn winding mechanism of claim 8, wherein the link mechanism (7 c) comprises a connecting rod (7 c 1), a third bearing seat (7 c 2) and a fourth bearing seat (7 c 3) which are fixedly arranged at two ends of the connecting rod (7 c 1), a driven shaft (7 b 1) extending outwards along an axis parallel to the crankshaft (7 d) is arranged on one surface of the sliding block (7 b), the third bearing seat (7 c 2) is sleeved on the driving shaft of the crankshaft (7 d), and the fourth bearing seat (7 c 3) is sleeved on the driven shaft (7 b 1).

10. The spun yarn winding mechanism as claimed in claim 9, wherein a thread (7 b 2) is arranged at the tail end of the driven shaft (7 b 1), a locking nut (7 f) is sleeved on the thread (7 b 2), the locking nut (7 f) comprises a hexagonal barrel (7 f 1) and a cylindrical barrel (7 f 2) which are coaxially connected, inner holes of the hexagonal barrel (7 f 1) and the cylindrical barrel (7 f 2) are round holes, an inner hole of the hexagonal barrel (7 f 1) is provided with an inner thread (7 f 3) which is in threaded connection with the thread (7 b 2), the inner hole of the cylindrical barrel (7 f 2) is in clearance fit with the driven shaft (7 b 1), and the bottom surface of the cylindrical barrel (7 f 2) abuts against a bearing inner ring of the fourth bearing seat (7 c 3).

Technical Field

The invention relates to the technical field of spinning frames, in particular to a spun yarn winding mechanism.

Background

The spinning frame is a main machine for spinning, and the winding device is a main mechanism of the spinning frame.

At present, the coiling mechanism stores the yarn on one's own, but the yarn gathering can appear in one for the wind-up roll atress on the coiling mechanism is inhomogeneous, can lead to the life-span decline of wind-up roll for a long time, influences the consequence of rolling efficiency.

Disclosure of Invention

The invention aims to solve the technical problem of providing a spun yarn winding mechanism, which solves the problems that spun yarns are likely to gather at one position of a winding drum, so that the stress of the winding drum is uneven, and the service life of the winding drum is reduced.

In order to solve the technical problems, the invention provides the following technical scheme:

the utility model provides a spun yarn winding mechanism, which comprises a frame, the winding reel, the rotatory driver of second, the axial region and the frame rotatable coupling of winding reel and level setting, the rotatory driver of second and frame fixed connection and its output shaft and the axial region transmission of winding reel are connected, the input side of winding reel is provided with the reciprocal slip table of straight line with frame fixed connection, the activity guide frame is installed to the movable portion of the reciprocal slip table of straight line, be provided with along the level on the activity guide frame and perpendicular to winding reel axial direction run through the second round hole of activity guide frame, the second round hole is in smooth and smooth transition with the junction of activity guide frame, the stroke of the reciprocal slip table of straight line equals the working section axial length of winding reel.

Preferably, the input side of the movable guide frame is provided with a first feeding wheel, a tensioning wheel and a second feeding wheel which are arranged in sequence according to the input direction of the spun yarn, the first feeding wheel, the tensioning wheel and the second feeding wheel are positioned on the same vertical surface, the shaft parts of the first feeding wheel and the second feeding wheel are both rotatably connected with the frame and horizontally arranged, the shaft part of the tensioning wheel is horizontally arranged and always moves towards the direction far away from the first feeding wheel and the second feeding wheel, and the spun yarn passes through a second round hole after bypassing the working parts of the first feeding wheel, the tensioning wheel and the second feeding wheel and is wound on the winding drum.

Preferably, the first feeding wheel comprises a first fine grinding wheel and first bearing seats arranged at two ends of the shaft part of the first fine grinding wheel, the first bearing seats are fixedly connected with the frame, and the shaft part of the first fine grinding wheel is horizontally arranged; the second feeding wheel has the same structure as the first feeding wheel, and the axes of the second feeding wheel and the first feeding wheel are positioned on the same horizontal plane.

Preferably, the take-up pulley is including the thin emery wheel of second, second bearing seat, swing arm, first hinge, resilience mechanism, and second bearing seat installs at the axial region both ends of the thin emery wheel of second, and second bearing seat and the one end fixed connection of swing arm, the other end of swing arm rotatably installs in the frame through first hinge, and resilience mechanism's stiff end and expansion end are articulated with the middle part of frame, swing arm respectively.

Preferably, the working surface of the first fine grinding wheel has a smooth groove shape, and the working surface of the second fine grinding wheel has a smooth groove shape.

Preferably, the rebounding mechanism comprises a second hinge, a tension gas spring and a pin shaft, one end of the tension gas spring is rotatably arranged in the middle of the swing arm through the pin shaft, and the other end of the tension gas spring is rotatably arranged on the rack through the second hinge.

Preferably, be provided with between second material loading wheel and the activity guide frame with frame fixed connection's fixed guide ring, be provided with the level on the fixed guide ring and run through the first round hole of fixed guide ring, the axis of first round hole is located same horizontal plane with the axis of second material loading wheel, the axis of first round hole is perpendicular with the axis of second material loading wheel, the axis of first round hole is located the plane of symmetry of second material loading wheel, the junction rounding off of first round hole and fixed guide ring.

Preferably, the reciprocal slip table of straight line is including slip table, slider, link mechanism, bent axle, first rotary actuator, the slip table level set up and with frame fixed connection, slider and slip table sliding fit, activity guide frame and slider fixed connection, the axial region level of bent axle sets up and rotatably connects with the frame, the output shaft of first rotary actuator is connected with the axial region transmission of bent axle, link mechanism's both ends are articulated with the drive shaft of slider, bent axle respectively.

Preferably, the link mechanism comprises a connecting rod, and a third bearing seat and a fourth bearing seat which are fixedly installed at two ends of the connecting rod, wherein a driven shaft which extends outwards along an axis parallel to the crankshaft is arranged on one surface of the sliding block, the third bearing seat is sleeved on a driving shaft of the crankshaft, and the fourth bearing seat is sleeved on the driven shaft.

Preferably, the end of the driven shaft is provided with a thread, the thread is sleeved with a locking nut, the locking nut comprises a hexagonal cylinder and a cylinder which are coaxially connected, inner holes of the hexagonal cylinder and the cylinder are round holes, an inner hole of the hexagonal cylinder is provided with an inner thread connected with the thread, the inner hole of the cylinder is in clearance fit with the driven shaft, and the bottom surface of the cylinder abuts against the inner ring of the bearing of the fourth bearing seat.

Compared with the prior art, the invention has the beneficial effects that:

the spun yarn passes through the second round hole and is wound on the winding drum, the second rotary driver is a first servo motor, an output shaft of the first servo motor is in transmission connection with a shaft portion of the winding drum through a V-shaped belt pulley transmission mechanism, the first servo motor works to drive the winding drum to rotate through the V-shaped belt pulley transmission mechanism, so that the winding drum is pulled from an input side and is wound on the outer circumferential surface of the winding drum, the linear reciprocating sliding table drives the movable guide frame to perform linear reciprocating movement, the second round hole pulls the spun yarn to perform reciprocating movement on two ends of the winding drum, and therefore the spun yarn is uniformly wound on each position of the working portion of the winding drum.

The invention solves the problems that spun yarns are possibly gathered at one position of the winding drum, so that the stress of the winding drum is uneven, and the service life of the winding drum is reduced.

Drawings

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

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a front view of the present invention;

FIG. 4 is a top view of the present invention;

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

FIG. 6 is a top view of a first rotary drive, crankshaft, of the present invention;

FIG. 7 is a perspective sectional view taken along line B-B of FIG. 6;

FIG. 8 is an exploded perspective view of the slide table, slide block and link mechanism of the present invention;

FIG. 9 is a co-view cross-sectional view of FIG. 8;

fig. 10 is a cross-sectional view of the lock nut of the present invention.

The reference numbers in the figures are:

1-a frame;

2-a first feeding wheel; 2 a-a first fine grinding wheel; 2 b-a first bearing seat;

3-a tension wheel; 3 a-a second fine grinding wheel; 3 b-a second bearing block; 3 c-a swing arm; 3 d-a first hinge; 3 e-a second hinge; 3 f-a tension gas spring; 3 g-pin shaft;

4-a second feeding wheel;

5-fixing a guide ring; 5 a-a first circular aperture;

6-movable guide frame; 6 a-a second circular aperture;

7-linear reciprocating sliding table; 7 a-a slide; 7 b-a slide block; 7b1 — driven shaft; 7b 2-threads; 7 c-a linkage mechanism; 7c 1-link; 7c 2-third bearing seat; 7c 3-fourth bearing seat; 7 d-crankshaft; 7d1 — spindle; 7d 2-rotating disk; 7d3 — drive shaft; 7 e-a first rotary drive; 7e1 — second servomotor; 7e 2-speed reducer; 7 f-locking the nut; 7f 1-hexagonal cylinder; 7f 2-cylinder; 7f 3-internal thread;

8-a winding drum;

9-a second rotary drive; 9 a-a first servomotor; 9b-V type belt pulley transmission mechanism.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, 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 relative importance.

Referring to fig. 1 to 10, the spun yarn winding mechanism includes a frame 1, a winding drum 8, and a second rotary driver 9, wherein a shaft portion of the winding drum 8 is rotatably connected with the frame 1 and horizontally disposed, the second rotary driver 9 is fixedly connected with the frame 1 and an output shaft thereof is in transmission connection with a shaft portion of the winding drum 8, an input side of the winding drum 8 is provided with a linear reciprocating sliding table 7 fixedly connected with the frame 1, a movable guide frame 6 is mounted on a movable portion of the linear reciprocating sliding table 7, a second circular hole 6a penetrating through the movable guide frame 6 along a direction horizontal and perpendicular to an axial direction of the winding drum 8 is disposed on the movable guide frame 6, a joint of the second circular hole 6a and the movable guide frame 6 is in smooth transition, and a stroke of the linear reciprocating sliding table 7 is equal to an axial length of a working portion of the winding drum 8.

The spun yarn passes through the second round hole 6a and is wound on the winding drum 8, the second rotary driver 9 comprises a first servo motor 9a and a V-shaped belt pulley transmission mechanism 9b, an output shaft of the first servo motor 9a is in transmission connection with a shaft part of the winding drum 8 through the V-shaped belt pulley transmission mechanism 9b, the first servo motor 9a works to drive the winding drum 8 to rotate through the V-shaped belt pulley transmission mechanism 9b, so that the spun yarn is pulled and wound on the outer circumferential surface of the first servo motor from the input side, the linear reciprocating sliding table 7 drives the movable guide frame 6 to linearly reciprocate, the second round hole 6a pulls the spun yarn to reciprocate at two ends of the winding drum 8, and the spun yarn is uniformly wound on each position of the working part of the winding drum 8.

The input side of the movable guide frame 6 is provided with a first feeding wheel 2, a tensioning wheel 3 and a second feeding wheel 4 which are arranged in sequence according to the input direction of spun yarns, the first feeding wheel 2, the tensioning wheel 3 and the second feeding wheel 4 are positioned on the same vertical surface, the shaft parts of the first feeding wheel 2 and the second feeding wheel 4 are both rotatably connected with the frame 1 and horizontally arranged, the shaft part of the tensioning wheel 3 is horizontally arranged and always moves towards the direction far away from the first feeding wheel 2 and the second feeding wheel 4, and the spun yarns pass through a second round hole 6a and are wound on the winding drum 8 after passing through the working parts of the first feeding wheel 2, the tensioning wheel 3 and the second feeding wheel 4.

The first and second feeding wheels 2 and 4 are used for guiding the spun yarn to move towards the second round hole 6a, and the tension wheel 3 is used for tensioning the spun yarn, so that when the linear reciprocating sliding table 7 drives the movable guide frame 6 to linearly reciprocate, the spun yarn at the input side of the second round hole 6a is always in a tensioned state.

The first feeding wheel 2 comprises a first fine grinding wheel 2a and first bearing seats 2b arranged at two ends of the shaft part of the first fine grinding wheel 2a, the first bearing seats 2b are fixedly connected with the rack 1, and the shaft part of the first fine grinding wheel 2a is horizontally arranged; the second feeding wheel 4 has the same structure as the first feeding wheel 2, and the axes of the second feeding wheel 4 and the first feeding wheel 2 are positioned on the same horizontal plane.

The first fine grinding wheel 2a is horizontally disposed by a first bearing housing 2b and rotatably mounted on the frame 1, the first fine grinding wheel 2a guides the movement of the spun yarn on the working surface thereof, and the second feed wheel 4 guides the movement of the spun yarn by the same mechanism.

Tensioning wheel 3 is including the fine emery wheel 3a of second, second bearing frame 3b, swing arm 3c, first hinge 3d, resilient means, second bearing frame 3b is installed at the axial region both ends of the fine emery wheel 3a of second, second bearing frame 3b and swing arm 3 c's one end fixed connection, swing arm 3 c's the other end is rotatably installed on frame 1 through first hinge 3d, resilient means's stiff end and expansion end respectively with frame 1, swing arm 3 c's middle part is articulated.

The first hinge 3d is two coaxially arranged bearing seats provided with a rotating shaft, the bearing seats are fixedly connected with the rack 1, one end of the swing arm 3c is provided with a through hole in clearance fit with the rotating shaft, one end of the swing arm 3c can rotate on the rack 1 through the first hinge 3d, and then the swing arm 3c can drive the second bearing seat 3b to swing around a hinged shaft of the second bearing seat and the rack 1, the rebound mechanism drives the swing arm 3c to always move towards a direction close to the rack 1, namely a direction away from the first feeding wheel 2 and the second feeding wheel 4, the swing arm 3c drives the second bearing seat 3b and the second fine grinding wheel 3a to move towards a direction close to the rack 1, and then spun yarns sequentially bypassing the first feeding wheel 2, the tensioning wheel 3 and the second feeding wheel 4 are tensioned by the second fine grinding wheel 3 a.

The working surface of the first fine grinding wheel 2a is a smooth groove shape, and the working surface of the second fine grinding wheel 3a is a smooth groove shape.

The smooth groove is used for limiting the spun yarn to be always positioned at the center of the working surface of the first fine grinding wheel 2a or the second fine grinding wheel 3a so as not to deviate toward the edge of the first fine grinding wheel 2a or the second fine grinding wheel 3 a.

The rebounding mechanism comprises a second hinge 3e, a tension gas spring 3f and a pin shaft 3g, one end of the tension gas spring 3f is rotatably arranged in the middle of the swing arm 3c through the pin shaft 3g, and the other end of the tension gas spring 3f is rotatably arranged on the rack 1 through the second hinge 3 e.

The middle part of swing arm 3c is provided with circular through-hole, round pin axle 3g including with this circular through-hole clearance fit's bolt, the bolt passes one side of first hinge 3d in proper order, the through-hole at swing arm 3c middle part, the opposite side and the nut threaded connection of first hinge 3d, it does not have the screw thread to be located the inside position of swing arm 3c on the bolt, thereby make it act as the round pin axle, second hinge 3e is the same with first hinge 3d structure, pulling force that makes its orientation second hinge 3e direction remove is applyed to swing arm 3c to pulling force air spring 3f, thereby make the direction that first material loading wheel 2 and take-up pulley 3 were kept away from to second fine grinding wheel 3a all the time towards and remove.

Be provided with between second material loading wheel 4 and the activity guide frame 6 with frame 1 fixed connection's fixed guide ring 5, be provided with the first round hole 5a that the level runs through fixed guide ring 5 on the fixed guide ring 5, the axis of first round hole 5a is located same horizontal plane with the axis of second material loading wheel 4, the axis of first round hole 5a is perpendicular with the axis of second material loading wheel 4, the axis of first round hole 5a is located the plane of symmetry of second material loading wheel 4, the junction rounding off of first round hole 5a and fixed guide ring 5.

When the linear reciprocating sliding table 7 drives the movable guide frame 6 to linearly reciprocate, the second circular hole 6a pulls the spun yarn to enable the spun yarn to reciprocate from the output end of the second feeding wheel 4 to the two ends of the winding drum 8, in order to avoid the second circular hole 6a pulling the spun yarn off the second feeding wheel 4, a fixed guide ring 5 with different fixation is arranged, so that the spun yarn passes through the first circular hole 5a from the output end of the second feeding wheel 4 and then passes through the second circular hole 6a to be wound on the winding drum 8, the second circular hole 6a pulls the spun yarn to enable the spun yarn to reciprocate from the output end of the first circular hole 5a to the two ends of the winding drum 8, and the spun yarn cannot be pulled to the outer side of the first circular hole 5a because the first circular hole 5a is a circular hole.

The linear reciprocating sliding table 7 comprises a sliding table 7a, a sliding block 7b, a connecting rod mechanism 7c, a crankshaft 7d and a first rotary driver 7e, wherein the sliding table 7a is horizontally arranged and fixedly connected with the rack 1, the sliding block 7b is in sliding fit with the sliding table 7a, the movable guide frame 6 is fixedly connected with the sliding block 7b, the shaft part of the crankshaft 7d is horizontally arranged and rotatably connected with the rack 1, the output shaft of the first rotary driver 7e is in transmission connection with the shaft part of the crankshaft 7d, and two ends of the connecting rod mechanism 7c are respectively hinged with the sliding block 7b and the driving shaft of the crankshaft 7 d.

The first rotary driver 7e comprises a second servo motor 7e1 and a speed reducer 7e2, the crankshaft 7d comprises two main shafts 7d1 which are coaxially arranged through bearing seats and rotatably mounted on the frame 1, the adjacent surfaces of the two main shafts 7d1 are provided with rotary tables 7d2 which are symmetrical to each other, the two rotary tables 7d2 are fixedly connected through a driving shaft 7d3 which is eccentrically mounted on the adjacent surfaces of the rotary tables 7d2, the second servo motor 7e1 drives the main shafts 7d1 to rotate through the speed reducer 7e2, the main shafts 7d1 drive the driving shaft 7d3 to make circular motion around the axis of the main shaft 7d1 through the rotary tables 7d2, and the driving shaft 7d3 drives the link mechanism 7c to move so that the sliding block 7b is driven to make linear reciprocating motion on the sliding table 7 a.

The link mechanism 7c comprises a connecting rod 7c1, a third bearing seat 7c2 and a fourth bearing seat 7c3 which are fixedly installed at two ends of a connecting rod 7c1, a driven shaft 7b1 which extends outwards along an axis parallel to the crankshaft 7d is arranged on one surface of the sliding block 7b, the third bearing seat 7c2 is sleeved on a driving shaft of the crankshaft 7d, and the fourth bearing seat 7c3 is sleeved on the driven shaft 7b 1.

The driving shaft 7d3 makes a circular motion around the axis of the main shaft 7d1, the driving shaft 7d3 drives the third bearing seat 7c2 and the connecting rod 7c1 to move, the connecting rod 7c1 drives the fourth bearing seat 7c3 to pull the driven shaft 7b1 to move, the driven shaft 7b1 and the sliding block 7b are an integral piece, so the sliding block 7b drives the movable guide frame 6 to make a circular reciprocating linear motion on the sliding table 7 a.

The tail end of the driven shaft 7b1 is provided with a thread 7b2, a locking nut 7f is sleeved on the thread 7b2, the locking nut 7f comprises a hexagonal cylinder 7f1 and a cylinder 7f2 which are coaxially connected, inner holes of the hexagonal cylinder 7f1 and the cylinder 7f2 are round holes, an inner hole of the hexagonal cylinder 7f1 is provided with an internal thread 7f3 which is in threaded connection with the thread 7b2, the inner hole of the cylinder 7f2 is in clearance fit with the driven shaft 7b1, and the bottom surface of the cylinder 7f2 abuts against a bearing inner ring of the fourth bearing seat 7c 3.

The worker rotates the hexagonal barrel 7f1 through a wrench to enable the internal thread 7f3 to be in threaded connection with the thread 7b2, so that the lock nut 7f is installed on the driven shaft 7b1, the bottom surface of the barrel 7f2 abuts against the bearing inner ring of the fourth bearing seat 7c3, and relative rotation between the driven shaft 7b1 and the bearing outer ring of the fourth bearing seat 7c3 is not affected while the lock nut 7f limits the fourth bearing seat 7c3 on the sliding block 7 b.

The working principle of the invention is as follows:

the spun yarn sequentially rounds a first feeding wheel 2, a tensioning wheel 3 and a second feeding wheel 4, then passes through a fixed guide ring 5 and a movable guide frame 6 and is wound on a winding drum 8, the tensioning wheel 3 drives a swing arm 3c through a rebound mechanism to drive a second bearing seat 3b and a second fine grinding wheel 3a to move towards the direction far away from the first feeding wheel 2 and the tensioning wheel 3, so that the spun yarn on the input side of the fixed guide ring 5 is always kept in a tensioning state, a linear reciprocating sliding table 7 drives a crankshaft 7d to rotate through a first rotary driver 7e so as to drive a connecting rod mechanism 7c to pull a sliding block 7b to linearly reciprocate on the sliding table 7a, further, the movable guide frame 6 pulls the spun yarn output through a first circular hole 5a through a second circular hole 6a to linearly reciprocate at two ends of the winding drum 8, and the spun yarn is uniformly wound on each position on the winding drum 8.