CN212450095U

CN212450095U - Automatic yarn cutting equipment

Info

Publication number: CN212450095U
Application number: CN202020309282.4U
Authority: CN
Inventors: 王新明; 曲芸
Original assignee: Qingdao Yixin Industrial Automation Co ltd
Current assignee: Qingdao Yixin Industrial Automation Co ltd
Priority date: 2020-03-12
Filing date: 2020-03-12
Publication date: 2021-02-02
Anticipated expiration: 2030-03-12

Abstract

The utility model relates to the field of textile machinery, in particular to an automatic yarn cutting device, which comprises a frame, a bobbin slide way, a first box body and a second box body for driving cutters, a bobbin clamp and a clamp conveying mechanism; the first box body is arranged below the bobbin slide way and comprises a bobbin transferring device, and the second box body and the first box body are symmetrically arranged relative to the bobbin and comprise moving mechanisms of all cutters. The utility model discloses replaced the artifical operation mode that cuts the yarn in the past, utilized this equipment to accomplish the spool location, got and put, cut the yarn and got the whole processes of hard waste, effectively improved machining efficiency and processingquality to the human input has been reduced. The thread cutting is finished by adopting a mode of extruding and dragging the cutter ring, so that the damage to the bobbin is prevented.

Description

Automatic yarn cutting equipment

Technical Field

The utility model belongs to the technical field of spinning machine and specifically relates to an automatic cut yarn equipment.

Background

After the textile bobbin is used, tail yarns with irregular shapes and areas can remain on the bobbin, and the tail yarns need to be removed before the bobbin is reused. At present, a manual operation mode is usually adopted, the residual yarn on the bobbin is clear by using a grinding wheel or a blade, the labor intensity is high, the efficiency is low, and the production requirement is difficult to meet.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the above problem, provide an automatic cut yarn equipment, cut the tail yarn on the spool through the mode of machine tooling, effectively improve and cut yarn efficiency and processingquality. The technical scheme is as follows:

an automatic yarn cutting device comprises a frame, a bobbin slide way for placing bobbins, a first box body, a second box body, a mandril mechanism, a bobbin clamp and a clamp conveying mechanism, wherein the mandril mechanism is arranged on the frame and used for controlling the bobbins to move axially; the first box body and the second box body are symmetrically arranged relative to a yarn cutting station of the yarn tube, and the yarn tube slide ways are arranged above the first box body;

the first box body comprises a bobbin transfer device used for transferring the bobbins falling from the bobbin slide ways to a thread cutting station; the bobbin clamp is arranged above the bobbin thread cutting station and moves up and down under the driving of the clamp conveying mechanism; the first box body also comprises a moving mechanism of a first yarn cutting knife and a yarn returning knife; the second box body comprises a positioning knife cylinder and a moving mechanism of the positioning knife.

Preferably, the bobbin slide way comprises a slide plate, a large-head limiting plate, a small-head limiting plate and a limiting vertical plate; the sliding plate is obliquely arranged towards a yarn cutting station of the bobbin, a limiting vertical plate is arranged between the sliding plate and the yarn cutting station, the limiting vertical plate is arranged in parallel with the front edge of the sliding plate, and a gap is reserved between the limiting vertical plate and the front edge of the sliding plate and is larger than the maximum diameter of the bobbin;

the big end limiting plate and the small end limiting plate are U-shaped bending plates, and the end faces of the U-shaped bending plates are respectively arranged in parallel with the sliding plate; the gap between the end surface below the big end limiting plate and the sliding plate is larger than the diameter of the big end of the bobbin, and the gap between the end surface below the small end limiting plate and the sliding plate is larger than the diameter of the small end of the bobbin and larger than the diameter of the big end of the bobbin.

Preferably, the large-head limiting plate vertical surface is arranged in parallel with the limiting vertical plate, and the small-head limiting plate vertical surface is arranged perpendicular to the limiting vertical plate; a first side plate and a second side plate which are parallel to the sliding plate are respectively arranged on two sides of the sliding plate, and gaps between the first side plate and the sliding plate and between the second side plate and the sliding plate are not more than 2 times of the diameter of the large end of the bobbin; the height of the limiting vertical plate is higher than the upper end surfaces of the big head limiting plate and the small head limiting plate.

Preferably, the bobbin transfer device comprises a bobbin cylinder arranged in the first box body, a fixed plate is arranged above a piston rod of the bobbin cylinder, and the fixed plate can move along the direction vertical to the axis of the bobbin along with the piston rod; the fixed plate is fixedly connected with a vertical plate, the vertical plate is provided with a groove, and the groove is arranged below the bobbin slide way.

Preferably, a first yarn cutting knife cylinder and a yarn returning knife cylinder are arranged in the first box body, and the end parts of piston rods of the first yarn cutting knife cylinder and the yarn returning knife cylinder are respectively connected with a yarn cutting knife and a yarn returning knife; a second yarn cutting knife cylinder and a positioning knife cylinder are arranged in the second box body, and the end parts of piston rods of the second yarn cutting knife cylinder and the positioning knife cylinder are respectively connected with a yarn cutting knife and a positioning knife; the two yarn cutting knives are arranged in a centering mode in the same plane, the yarn returning knife and the positioning knife are arranged in a centering mode in the same plane, and the yarn cutting knives are arranged in front of the yarn returning knife in the advancing direction of the yarn bobbin.

On the basis of the scheme, the yarn cutting knife is provided with a first knife ring and a second knife ring which are parallel along the axial direction of the bobbin, the first knife ring and the second knife ring are arc-shaped, and a knife groove is arranged between the first knife ring and the second knife ring.

Preferably, the section of the knife edge area of the yarn returning knife is triangular, and the gap between one end of the knife edge area close to the yarn cutting knife and the yarn tube is smaller than that between the other end of the knife edge area and the yarn tube.

Preferably, the clamp conveying mechanism comprises a vertically arranged slide way, a slide way motor at the end part of the slide way and a slide block which moves back and forth along the slide way, and the slide block is connected with the bobbin clamp through a fixing block.

On the basis of the scheme, the bobbin clamp comprises an upper cover, a mounting seat, springs and grabbing arms, wherein the grabbing arms are mounted on two sides of the mounting seat in pairs, the springs are arranged between the upper portions of the grabbing arms and the mounting seat, the middle portions of the grabbing arms are hinged with the mounting seat, an obtuse angle is formed between the lower edge of the inner side of each grabbing arm and the vertical direction, and an acute angle is formed between the contact surface of the bobbin on the inner side of each grabbing arm and the vertical direction; the upper cover covers the upper part of the mounting seat and is connected with the fixing block.

Preferably, the ejector rod mechanism comprises an ejector rod motor, an ejector rod driving device and an ejector rod, the ejector rod is connected to the end of the ejector rod driving device and arranged along the axis of the yarn bobbin, and the ejector rod driving device drives the ejector rod to move along the axis of the yarn bobbin under the driving of the ejector rod motor.

The utility model has the advantages that: the device replaces the operation mode of manual yarn cutting in the prior art, and is used for completing the whole processes of positioning the bobbin, taking and placing the bobbin, cutting the yarn and removing the broken yarns, so that the processing efficiency and the processing quality are effectively improved, and the manpower input is reduced. The thread cutting is finished by adopting a mode of extruding and dragging the cutter ring, so that the damage to the bobbin is prevented.

Drawings

FIG. 1: the utility model has a schematic structure;

FIG. 2: the structure schematic diagram of the bobbin slide of the utility model;

FIG. 3: the structure of the fixing plate of the utility model is shown schematically;

FIG. 4: the structure schematic diagram of the first box body, the second box body and the ejector rod mechanism of the utility model;

FIG. 5: the structure of the yarn cutter of the utility model is schematically shown;

FIG. 6: the structure of the wire returning knife of the utility model is shown schematically;

FIG. 7: the structure schematic diagram of the clamp conveying mechanism of the utility model;

FIG. 8: the structure schematic diagram of the bobbin clamp of the utility model;

FIG. 9: the utility model discloses spool anchor clamps internally mounted structure schematic diagram.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

in the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it is to be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and 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 therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1 to 9, an automatic yarn cutting device includes a frame 1, a bobbin slide 2 for placing a bobbin, a first box 3, a second box 4 and a push rod mechanism 7 for controlling axial movement of the bobbin 8, the bobbin clamp 6 for clamping the bobbin 8, and a clamp conveying mechanism 5 for moving the bobbin clamp 6, which are disposed on the frame 1. The first box body 3 and the second box body 4 are symmetrically arranged relative to a yarn cutting station of the bobbin 8, and the bobbin slide way 2 is arranged above the first box body 3; the first box body 3 comprises a bobbin transfer device used for transferring a bobbin 8 falling from the bobbin slide way 2 to a thread cutting station; the bobbin clamp 6 is arranged above a bobbin 8 thread cutting station and moves up and down under the driving of the clamp conveying mechanism 5; the first box body 3 also comprises a moving mechanism of a first yarn cutting knife 34 and a yarn returning knife 36; the second casing 4 includes a positioning blade cylinder 42 and a moving mechanism of a positioning blade 43.

As shown in fig. 2, the bobbin slide 2 includes a sliding plate 21, a large-end limit plate 22, a small-end limit plate 24, and a limit vertical plate 26. Slide 21 sets up to 8 secant stations slopes of spool, is convenient for spool 8 to glide under the action of gravity, sets up the side guard plate through slide 21 both sides and prevents spool 8 roll-off slide 21. A limiting vertical plate 26 is arranged between the sliding plate 21 and the thread cutting station, the limiting vertical plate 26 is arranged in parallel with the front edge of the sliding plate 21 and is provided with a gap, the gap is larger than the maximum diameter of the bobbin 8, and the front part of the sliding plate 21 is bent downwards, so that the bobbin 8 falls to a specified position along the gap. The big head limiting plate 22 and the small head limiting plate 24 are U-shaped bending plates, and the end faces of the U-shaped bending plates are respectively arranged in parallel with the sliding plate 21; the gap between the end face below the big end limiting plate 22 and the sliding plate 21 is larger than the diameter of the big end of the bobbin 8, so that the big end of the bobbin 8 can pass through conveniently, the gap between the end face below the small end limiting plate 24 and the sliding plate 21 is larger than the diameter of the small end of the bobbin 8 and larger than the diameter of the big end of the bobbin 8, only the small end of the bobbin 8 can pass through conveniently, the placing and rolling directions of the bobbin 8 are limited, and the bobbin can be taken out conveniently by an operator when the directions are reversed.

For preventing spool 8 rolls the in-process and takes place to beat, slide 21 both sides set up first curb plate 23 and the second curb plate 25 parallel with it respectively, the space between first curb plate 23 and second curb plate 25 and slide 21 is not more than 2 times of spool 8 main aspects diameter, can also guarantee that spool 8 can fall in proper order at slide 21 front end when preventing that spool 8 from beating. When the direction of the bobbin 8 is reversed, the bobbin 8 is easy to have the problem that the small end is tilted and then falls to the position above the thread cutting station to damage elements because the large end of the bobbin 8 is clamped at the small end limiting plate 24 and is extruded by the bobbin to be processed at the rear part. In order to avoid the problems, the vertical surface of the big-end limiting plate 22 is arranged in parallel with the limiting vertical plate 26, and the vertical surface of the small-end limiting plate 24 is arranged vertically with the limiting vertical plate; the height of the limiting vertical plate 26 is higher than the upper end surfaces of the big head limiting plate 22 and the small head limiting plate 24. When the direction of the bobbin 8 is reversed, the tilted small end is blocked by the vertical surface of the large end limiting plate 22 and the limiting vertical plate 26 and stays on the sliding plate 21, so that an operator can take the bobbin directly.

As shown in fig. 3, the bobbin transfer device includes a bobbin cylinder 31 disposed in the first box 3, a fixing plate 32 is disposed above a piston rod of the bobbin cylinder 31, and the fixing plate 32 can move along the axis direction perpendicular to the bobbin 8 along with the piston rod; a vertical plate 321 is fixedly connected to the fixed plate 32, a groove 322 is formed in the vertical plate 321, and the groove 322 is arranged below the bobbin slide way 2, so that the bobbin 8 falling from the bobbin slide way 2 is received and is transferred forward to a yarn cutting station.

As shown in fig. 4, a first yarn cutting knife cylinder 33 and a yarn returning knife cylinder 35 are arranged in the first box 3, and the ends of the piston rods of the first yarn cutting knife cylinder 33 and the yarn returning knife cylinder 35 are respectively connected with a yarn cutting knife 34 and a yarn returning knife 36; a second yarn cutting knife cylinder 41 and a positioning knife cylinder 42 are arranged in the second box body 4, and the end parts of piston rods of the second yarn cutting knife cylinder 41 and the positioning knife cylinder 42 are respectively connected with a yarn cutting knife 34 and a positioning knife 43; the two yarn cutting knives 34 are arranged in a centering way in the same plane, the yarn returning knife 36 and the positioning knife 43 are arranged in a centering way in the same plane, and the yarn cutting knife 34 is arranged in front of the yarn returning knife 36 along the advancing direction of the bobbin 8. The positions of different cutters are controlled through the movement of the piston rod of the air cylinder during operation, and the pushing force of the cutters on the bobbin is adjusted through setting the pressure in the air cylinder, so that the positions and the acting force of the cutters are automatically adjusted according to the shapes of the bobbin and tail yarns in the pushing process of the bobbin 8, and the bobbin is prevented from being scratched while the yarn cutting is completed.

As shown in fig. 5, the yarn cutting knife 34 is provided with a first knife ring 341 and a second knife ring 342 which are parallel to each other in the axial direction of the bobbin 8, and the first knife ring 341 and the second knife ring 342 are arc-shaped, and a knife groove 343 is provided therebetween. The bobbin 8 is pushed forward and the tail yarn is axially extruded and dragged by the first cutter ring 341, the tail yarn is clamped into the cutter groove 343 after the winding diameter of the tail yarn is increased, the yarn is prevented from moving relative to the cutter ring, and then the tail yarn is completely stripped from the bobbin 8 through the extrusion and dragging effects of the first cutter ring 341 and the second cutter ring 342 on the tail yarn.

As shown in fig. 6, the section of the cutting edge area of the yarn returning cutter 36 is triangular, the cutting edge area has a certain thickness, and the gap between one end of the cutting edge area close to the yarn cutting cutter 34 and the bobbin 8 is smaller than that between the other end of the cutting edge area and the bobbin 8, that is, the cutting edge area is closer to the bobbin 8, and the tail yarn wound on the mandril 73 in the yarn cutting process is cleaned by the yarn returning cutter 36.

As shown in fig. 7, the clamp conveying mechanism 5 includes a vertically arranged slide way 52, a slide way motor 51 at the end of the slide way 52, and a slide block 53 reciprocating along the slide way 52, and the slide block 53 is connected with the bobbin clamp 6 through a fixing block 54, so as to drive the bobbin clamp 6 to lift and lower along the slide way 52 above the thread cutting station.

As shown in fig. 8 and 9, the bobbin clamp 6 includes an upper cover 61, a mounting seat 62, a spring 63, and a gripping arm 64, the gripping arms 64 are mounted on two sides of the mounting seat 62 in pairs, the spring 63 is disposed between the upper portion of the gripping arm 64 and the mounting seat 62, the middle portion of the gripping arm 64 is hinged to the mounting seat 62, the inner lower edge of the gripping arm 64 forms an obtuse angle with the vertical direction, the contact surface of the bobbin 8 inside the gripping arm 64 forms an acute angle with the vertical direction, with the above structure, when the bobbin clamp 6 moves down, the inner lower edge of the gripping arm 64 expands outwards along the outer surface of the bobbin 8, the upper portion of the gripping arm 64 presses the spring 63 inwards, so that the bobbin 8 is gripped by the inner side of the gripping arm 64. The upper cover 61 covers the mounting seat 62 and is connected with the fixing block 54.

As shown in fig. 4, the ejector mechanism 7 includes an ejector motor 71, an ejector driving device 72, and an ejector 73, the ejector 73 is connected to an end of the ejector driving device 72 and is disposed along an axis of the bobbin 8, and the ejector driving device 72 drives the ejector 73 to move along the axis of the bobbin 8 under the driving of the ejector motor 71.

During operation, an operator places the bobbin 8 into the bobbin slide 2 in a set direction and takes out the bobbin which is clamped due to the reverse direction. The bobbin 8 falls into the groove 322 on the vertical plate 321 through the gap between the limiting vertical plate 26 and the sliding plate 21, is driven by the bobbin air cylinder 31 and is transferred to the upper part of the yarn cutting station. The bobbin clamp 6 is driven by the clamp conveying mechanism 5 to move downwards and grab the bobbin, the bobbin cylinder 31 drives the fixing plate 32 to move backwards, the bobbin clamp 6 drives the bobbin 8 to continuously move downwards into the cutter ring of the yarn cutting cutter 34, each cutter moves forwards under the action of the cylinder and clamps the bobbin 8, and the bobbin clamp 6 moves upwards to loosen the bobbin 8. The push rod motor 71 drives the push rod 73 to push against the tail end of the bobbin 8 through the push rod driving device 72 until the bobbin 8 is completely pushed out of the position of the yarn cutting knife 34 and then retreats, meanwhile, the yarn cutting knife 34 retreats, the yarn returning knife 36 moves forwards, and residual tail yarns on the push rod 73 are removed. Finally, the mandril 73 and the wire returning knife 36 are retracted to the initial position for the next working cycle.

The present invention has been described above by way of example, but the present invention is not limited to the above-mentioned embodiments, and any modification or variation based on the present invention is within the scope of the present invention.

Claims

1. An automatic yarn cutting device is characterized by comprising a rack (1), a bobbin slide way (2) for placing bobbins, a first box body (3) and a second box body (4) which are arranged on the rack (1), an ejector rod mechanism (7) for controlling the bobbins (8) to move axially, bobbin clamps (6) for clamping the bobbins (8) and a clamp conveying mechanism (5) for moving the bobbin clamps (6); the first box body (3) and the second box body (4) are symmetrically arranged relative to a yarn cutting station of the yarn bobbin (8), and the yarn bobbin slide way (2) is arranged above the first box body (3);

the first box body (3) comprises a bobbin transfer device used for transferring a bobbin (8) falling from the bobbin slide way (2) to a thread cutting station; the bobbin clamp (6) is arranged above a bobbin (8) thread cutting station and moves up and down under the driving of the clamp conveying mechanism (5); the first box body (3) also comprises a moving mechanism of a first yarn cutting knife (34) and a yarn returning knife (36); the second box body (4) comprises a positioning knife cylinder (42) and a moving mechanism of a positioning knife (43).

2. The automatic yarn cutting equipment according to claim 1, wherein the bobbin slide way (2) comprises a sliding plate (21), a large-head limiting plate (22), a small-head limiting plate (24) and a limiting vertical plate (26); the sliding plate (21) is obliquely arranged towards a yarn cutting station of the bobbin (8), a limiting vertical plate (26) is arranged between the sliding plate (21) and the yarn cutting station, the limiting vertical plate (26) is arranged in parallel with the front edge of the sliding plate (21) and a gap is reserved, and the gap is larger than the maximum diameter of the bobbin (8);

the big head limiting plate (22) and the small head limiting plate (24) are U-shaped bending plates, and the end faces of the U-shaped bending plates are respectively arranged in parallel with the sliding plate (21); the gap between the end surface below the big end limiting plate (22) and the sliding plate (21) is larger than the diameter of the big end of the bobbin (8), and the gap between the end surface below the small end limiting plate (24) and the sliding plate (21) is larger than the diameter of the small end of the bobbin (8) and larger than the diameter of the big end of the bobbin (8).

3. The automatic yarn cutting equipment according to claim 2, wherein the vertical surface of the big-end limiting plate (22) is arranged in parallel with the limiting vertical plate (26), and the vertical surface of the small-end limiting plate (24) is arranged perpendicular to the limiting vertical plate; a first side plate (23) and a second side plate (25) which are parallel to the sliding plate (21) are respectively arranged on two sides of the sliding plate (21), and gaps between the first side plate (23) and the sliding plate (21) and between the second side plate (25) and the sliding plate (21) are not more than 2 times of the diameter of the large end of the bobbin (8); the height of the limiting vertical plate (26) is higher than the upper end surfaces of the big head limiting plate (22) and the small head limiting plate (24).

4. The automatic yarn cutting equipment is characterized in that the bobbin transfer device comprises a bobbin cylinder (31) arranged in the first box body (3), a fixing plate (32) is arranged above a piston rod of the bobbin cylinder (31), and the fixing plate (32) can move along the axial direction vertical to the bobbin (8) along with the piston rod; a vertical plate (321) is fixedly connected to the fixing plate (32), a groove (322) is formed in the vertical plate (321), and the groove (322) is formed in the lower portion of the bobbin slide way (2).

5. The automatic yarn cutting device according to claim 1, characterized in that a first yarn cutting knife cylinder (33) and a yarn returning knife cylinder (35) are arranged in the first box body (3), and the ends of piston rods of the first yarn cutting knife cylinder (33) and the yarn returning knife cylinder (35) are respectively connected with a yarn cutting knife (34) and a yarn returning knife (36); a second yarn cutting knife cylinder (41) and a positioning knife cylinder (42) are arranged in the second box body (4), and the end parts of piston rods of the second yarn cutting knife cylinder (41) and the positioning knife cylinder (42) are respectively connected with a yarn cutting knife (34) and a positioning knife (43); the two yarn cutting knives (34) are arranged in a centering mode in the same plane, the yarn returning knife (36) and the positioning knife (43) are arranged in a centering mode in the same plane, and the yarn cutting knives (34) are arranged in front of the yarn returning knife (36) in the advancing direction of the yarn bobbin (8).

6. An automatic yarn cutting device according to claim 5, characterized in that the yarn cutting knife (34) is provided with a first knife ring (341) and a second knife ring (342) which are parallel along the axial direction of the bobbin (8), the first knife ring (341) and the second knife ring (342) are arc-shaped, and a knife groove (343) is arranged between the first knife ring (341) and the second knife ring (342).

7. An automatic yarn cutting device according to claim 5, characterized in that the blade area of the yarn returning blade (36) is triangular in cross section, and the gap between one end of the blade area close to the yarn cutting blade (34) and the bobbin (8) is smaller than that between the other end of the blade area and the bobbin.

8. The automatic yarn cutting device according to claim 1, wherein the clamp conveying mechanism (5) comprises a vertically arranged slide way (52), a slide way motor (51) arranged at the end part of the slide way (52) and a slide block (53) moving back and forth along the slide way (52), and the slide block (53) is connected with the bobbin clamp (6) through a fixing block (54).

9. The automatic yarn cutting equipment is characterized in that the bobbin clamp (6) comprises an upper cover (61), a mounting seat (62), springs (63) and grabbing arms (64), the grabbing arms (64) are mounted on two sides of the mounting seat (62) in pairs, the springs (63) are arranged between the upper portions of the grabbing arms (64) and the mounting seat (62), the middle portions of the grabbing arms (64) are hinged to the mounting seat (62), the lower inner edges of the grabbing arms (64) form an obtuse angle with the vertical direction, and the contact surface of the bobbin (8) on the inner side of the grabbing arms (64) forms an acute angle with the vertical direction; the upper cover (61) covers the upper part of the mounting seat (62) and is connected with the fixed block (54).

10. The automatic yarn cutting equipment is characterized in that the ejector rod mechanism (7) comprises an ejector rod motor (71), an ejector rod driving device (72) and an ejector rod (73), the ejector rod (73) is connected to the end part of the ejector rod driving device (72) and is arranged along the axis of the bobbin (8), and the ejector rod driving device (72) drives the ejector rod (73) to move along the axis direction of the bobbin (8) under the driving of the ejector rod motor (71).