A bobbin automatic yarn feeding machine

Abstract

The application relates to the technical field of automatic yarn feeding machines, and discloses a bobbin automatic yarn feeding machine which comprises a rack, three tail yarn suction ports are formed in the rack, a conveying device is installed on the rack and used for conveying bobbins, three through holes are formed in the frame of the conveying device and used for the tail yarns of the bobbins to pass through, a feeding manipulator is installed on the rack and used for grabbing and feeding the bobbins, a negative pressure fan is installed on the rack, a head yarn processing assembly is arranged on the rack and used for processing the head yarns of the bobbins, and a cylinder is arranged in the head yarn processing assembly. The head yarn processing and the tail yarn processing are integrated in the same station, the tail yarn is first sucked through the second vertical pipe when the bobbin reaches directly below the feeding manipulator, then the head yarn processing assembly controls the telescopic pipe to be sleeved into the bobbin and simultaneously adsorbs the head yarn, the two are sequentially completed in the same station, the bobbin does not need to be additionally moved to an independent tail yarn processing module by the mechanical arm, and the execution action of the mechanical arm and the single cycle time are reduced.

Description

Technical Field

[0001] This invention relates to the field of automatic yarn feeding machine technology, and more particularly to an automatic yarn feeding machine for winding. Background Technology

[0002] An automatic yarn feeding machine is an auxiliary device used to automatically transport and feed bobbins into the yarn magazine of a winding machine. It typically includes a yarn magazine, a conveyor belt, and a yarn handling mechanism.

[0003] In existing technology, automatic yarn feeding machines have the function of processing the beginning and end yarns of winding. Specifically, when the winding bobbin moves to the grasping position, the beginning yarn processing module automatically processes the beginning yarn. Subsequently, the robotic arm grasps the winding bobbin and inserts the end of the winding bobbin into the end yarn processing module on the device. The end yarn processing module automatically processes the end yarn of the winding bobbin. After processing, the robotic arm then places the winding bobbin into the subsequent workstation. In this process, the robotic arm needs to move sequentially between the beginning yarn processing, end yarn processing, and placement workstations, which increases the motion links and waiting time in a single processing cycle, thus extending the overall cycle time and limiting the number of winding bobbins that can be processed per unit time. The end yarn processing module and the beginning yarn processing module are spatially separated. After completing the beginning yarn processing, the robotic arm needs to carry the winding bobbin for an independent journey to complete the end yarn processing. This journey not only consumes additional motion time but also requires the end trajectory of the robotic arm to cover a larger area, increasing the complexity of path planning and positioning control.

[0004] Therefore, it is necessary to design an automatic yarn feeding machine for winding to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to solve the problem that existing automatic yarn feeding machines have separate head yarn and tail yarn processing stations, and the robotic arm needs to carry the winding drum to independently complete the tail yarn insertion process, which increases the execution steps and running time. Therefore, an automatic yarn feeding machine with winding drum is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An automatic yarn feeding machine for winding, comprising: The frame has three tail yarn suction ports; A conveying device, installed on the frame, is used to convey the winding yarn. The frame of the conveying device has three through openings for the tail yarn of the winding yarn to pass through. A robotic arm, mounted on a frame, is used to grab and deliver winding cylinders; The negative pressure fan is mounted on the frame; A yarn processing assembly, arranged on the frame, is used to process wound yarns, and the yarn processing assembly includes a cylinder; A tail yarn processing assembly is arranged on the frame, facing the head yarn processing assembly, and is used to process the tail yarn of the winding. A tail yarn cutting assembly is arranged on the frame, located between the head yarn processing assembly and the tail yarn processing assembly, and is used to cut the tail yarn. The drive assembly, arranged on the frame, includes a sliding structure and a linkage structure. The sliding structure is used to actuate the tail yarn cutting assembly, and the cylinder drives the sliding structure to actuate through the linkage structure.

[0007] As a preferred embodiment of the present invention, the veil processing assembly further includes a first negative pressure suction tube, which is fixed on the frame and arranged horizontally. The first negative pressure suction tube is connected to the suction end of a negative pressure fan via a pipeline. Three first vertical pipes are connected to the first negative pressure suction tube, each of which is arranged vertically. A telescopic pipe is connected to the end of each of the three first vertical pipes away from the first negative pressure suction tube. The cylinder is mounted on the frame, and a connecting frame is fixed to the telescopic end of the cylinder. A connecting plate is fixed to the connecting frame, and the connecting plate is connected to the end of each of the three telescopic pipes away from the corresponding first vertical pipe.

[0008] As a preferred embodiment of the present invention, the tail yarn processing assembly includes a second negative pressure suction pipe, which is fixed on the frame and arranged horizontally. The second negative pressure suction pipe is connected to the suction end of a negative pressure fan through a pipeline. Three second vertical pipes are connected to the second negative pressure suction pipe, and the three second vertical pipes are respectively arranged opposite to the three first vertical pipes.

[0009] As a preferred embodiment of the present invention, the three tail yarn adsorption ports are respectively arranged facing the three second vertical tubes, and the three tail yarn adsorption ports are respectively arranged facing the three through ports.

[0010] As a preferred embodiment of the present invention, the tail yarn cutting assembly is composed of three cutting structures, and the three cutting structures are respectively positioned opposite the three tail yarn adsorption ports; The cutting structure includes a mounting frame, which is fixed to the machine frame by a support column. A fixed blade is fixed on the bottom surface of the mounting frame. The cutting structure also includes a movable blade and a shaft. The movable blade is located directly below the mounting frame. The shaft is rotatably mounted on the machine frame, and the movable blade is fixedly sleeved on the shaft.

[0011] As a preferred embodiment of the present invention, the sliding structure includes three gears and a rack. The three gears are respectively fixedly sleeved on three shafts. The rack is slidably mounted on the frame. A limit track is provided on the rack. A limit block is provided in the limit track. The limit block is fixed on the frame. A retaining ring is fixed at the top of the limit block.

[0012] As a preferred embodiment of the present invention, the bottom surface of the rack is fitted with the frame, and the top surface of the rack is fitted with the retaining ring.

[0013] As a preferred embodiment of the present invention, the linkage structure includes a guide rail fixed to the frame and arranged vertically. A slide block is slidably disposed on the guide rail, and a crossbar is fixed to the side of the slide block. The crossbar is connected to the frame by a tension spring. A first movable sleeve is rotatably sleeved on the crossbar. The linkage structure also includes two supports, both of which are fixed to the top surface of a rack. A pin is fixed between the two supports, and a second movable sleeve is rotatably sleeved on the pin. The first movable sleeve and the second movable sleeve are connected by a connecting rod. The crossbar is located directly below the connecting frame.

[0014] As a preferred embodiment of the present invention, in the initial state, the slide is located at the top of the guide rail, and the connecting rod is inclined.

[0015] The present invention has the following beneficial effects: This automatic yarn feeding machine integrates the head yarn processing and tail yarn processing in the same station. When the winding machine reaches the bottom of the feeding robot, the tail yarn is first sucked in by the negative pressure of the second vertical tube. Then, the head yarn processing component controls the telescopic tube to fit into the winding machine and simultaneously pick up the head yarn. The two are completed sequentially in the same station, eliminating the need for the robot arm to carry the winding machine to an independent tail yarn processing module, thus reducing the robot arm's execution actions and single cycle time. In the tail yarn cutting assembly, the movable blade rotates in conjunction with the drive assembly when the head yarn processing cylinder is pressed down, thus cutting the tail yarn. The entire cutting action is completed by the cylinder drive linkage, eliminating the need for a separate power source and independent control timing, which helps to simplify the control logic and equipment structure. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an automatic yarn feeding machine for winding proposed in this invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of an automatic yarn feeding machine for winding proposed in this invention. Figure 2 ; Figure 3 This is a structural diagram of the frame and the negative pressure fan; Figure 4 A schematic diagram of the head yarn processing component, tail yarn processing component, and tail yarn cutting component; Figure 5 This is a schematic diagram of the conveying device. Figure 6 This is a structural diagram of the drive assembly and the tail yarn cutting assembly; Figure 7 This is a schematic diagram of the structure of the veil processing component; Figure 8 This is a schematic diagram of the planar structure of the head yarn processing component and the tail yarn processing component; Figure 9 for Figure 4 Enlarged view of the structure at point A.

[0017] In the diagram: 1. Frame; 2. Conveying device; 21. Through-hole; 3. Dispatch robot; 4. Negative pressure fan; 51. First negative pressure suction pipe; 52. First vertical pipe; 53. Telescopic pipe; 54. Cylinder; 55. Connecting frame; 56. Connecting plate; 61. Second negative pressure suction pipe; 62. Second vertical pipe; 71. Mounting frame; 72. Support column; 73. Fixed blade; 74. Movable blade; 75. Shaft; 81. Gear; 82. Rack; 83. Limiting slide; 84. Limiting block; 85. Retaining ring; 91. Guide rail; 92. Slide seat; 93. Crossbar; 94. Tension spring; 95. First movable sleeve; 96. Connecting rod; 97. Bracket; 98. Pin; 99. Second movable sleeve. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] Example 1: This example discloses an automatic yarn feeding machine for winding, referring to... Figure 1-5 The system includes a frame 1, on which a conveying device 2 and a delivery robot 3 are mounted. The conveying device 2 carries the winding cylinders and transports them from the previous station to directly below the delivery robot 3. During the conveying process, the conveying device 2 adjusts the position of the winding cylinders to ensure that the three winding cylinders can move accurately to the area below the delivery robot 3. The delivery robot 3 automatically delivers the adjusted winding cylinders to the subsequent station. The number of winding cylinders delivered at one time is usually three. The frame of the conveying device 2 has three through-holes 21, all of which are located directly below the delivery robot 3. When the three winding cylinders are in place, the delivery robot 3 descends to grab the winding cylinders and delivers them to the subsequent station. The specific structure and working principle of the conveying device 2 and the delivery robot 3 are existing technologies, and the implementation method uses conventional means, which will not be elaborated on here.

[0020] A negative pressure fan 4 is installed inside the frame 1. A veil processing assembly is mounted on the frame 1, including a first negative pressure suction pipe 51. The first negative pressure suction pipe 51 is fixed to the upper part of the frame 1, with its axis extending horizontally. The first negative pressure suction pipe 51 is connected to the suction end of the negative pressure fan 4 via a pipe. Three first vertical pipes 52 are connected to the first negative pressure suction pipe 51, extending vertically downwards from the bottom of the first negative pressure suction pipe 51. The three first vertical pipes 52 are evenly spaced along the length of the first negative pressure suction pipe 51, and the center distance between two adjacent first vertical pipes 52 is the same as the center distance between two adjacent winding cylinders on the conveying device 2. A telescopic pipe 53 is connected to the bottom end of each first vertical pipe 52. The telescopic pipe 53 adopts a telescopic corrugated pipe structure. (The text abruptly ends here, so the translation stops as well.) The assembly also includes a cylinder 54, which is mounted on the frame 1. A connecting frame 55 is fixed to the telescopic end of the cylinder 54, and a connecting plate 56 is fixed to the connecting frame 55. The connecting plate 56 is connected to the end of the three telescopic tubes 53 away from the corresponding first vertical tube 52. Three annular openings are opened on the connecting plate 56, and the three telescopic tubes 53 are respectively fixed in the three annular openings. When the telescopic end of the cylinder 54 extends, the connecting frame 55 and the connecting plate 56 move downward together, stretching the three telescopic tubes 53 so that their lower ends extend downward and fit on the winding cylinder. When the telescopic end of the cylinder 54 retracts, the connecting frame 55 and the connecting plate 56 move upward together, compressing the three telescopic tubes 53 so that their lower ends retract upward and separate from the winding cylinder. When the winding cylinder, after being positioned, moves to directly below the delivery robot 3, the three winding cylinders are exactly positioned directly opposite the three telescopic tubes 53.

[0021] When the device is running, the negative pressure fan 4 operates synchronously, drawing air from the first negative pressure suction pipe 51 and the three first vertical pipes 52 through the pipeline, keeping the three first vertical pipes 52 in a negative pressure adsorption state at all times. When processing the yarn on the winding cylinder, the cylinder 54 operates, controlling the extension of the three telescopic pipes 53. As the telescopic pipes 53 extend and fit onto the winding cylinder, the lower opening of the telescopic pipe 53 gradually approaches the yarn at the top of the winding cylinder. When the telescopic pipe 53 completely fits onto the winding cylinder, a local negative pressure zone is formed inside the telescopic pipe 53. Under the action of the negative pressure difference, the yarn is sucked into the telescopic pipe 53 and enters the first vertical pipe 52. Subsequently, the cylinder 54 resets, causing the telescopic pipe 53 to contract, forming a gap between the lower end of the telescopic pipe 53 and the winding cylinder. At this time, most of the yarn has been detached from the winding cylinder and sucked into the first vertical pipe 52, completing the automatic yarn finding. Since the three telescopic pipes 53 operate synchronously, the yarn processing of the three winding cylinders is completed simultaneously, ensuring the consistency of processing efficiency.

[0022] A tail yarn processing assembly is installed on the frame 1. The tail yarn processing assembly includes a second negative pressure suction pipe 61, which is fixed to the frame 1 and is arranged horizontally. The second negative pressure suction pipe 61 is connected to the suction end of the negative pressure fan 4 through a pipeline. Three second vertical pipes 62 are connected to the second negative pressure suction pipe 61, and the three second vertical pipes 62 are respectively positioned opposite the three first vertical pipes 52. Three tail yarn suction ports are opened on the frame 1, and the three tail yarn suction ports are respectively positioned opposite the three second vertical pipes 62 and the three tail yarn suction ports are respectively positioned opposite the three through ports 21. The second negative pressure suction pipe 61 is fixed at the lower part of the frame 1, and its axis is horizontal. Extending upwards and parallel to the axis of the first negative pressure suction pipe 51, three second vertical pipes 62 extend vertically upwards from the top of the second negative pressure suction pipe 61, and their positions are directly opposite the positions of the three first vertical pipes 52. The tail yarn adsorption port is opened on the workbench of the frame 1, located directly above the second vertical pipe 62. Its opening size is larger than the size of the through port 21, which can cover the swing range of the tail yarn at the bottom of the winding drum, ensuring that the tail yarn can pass smoothly through the through port 21 and the tail yarn adsorption port under the action of negative pressure and be sucked into the second vertical pipe 62. The second negative pressure suction pipe 61 and the three second vertical pipes 62 are continuously in a negative pressure state during the operation of the negative pressure fan 4, ready to adsorb the tail yarn at the bottom of the winding drum at any time.

[0023] During the process of the winding cylinder being transported to the position directly below the delivery robot 3, the winding cylinder will approach the position of the through-hole 21. When the winding cylinder reaches the predetermined position, the tail yarn is already close to the through-hole 21. The negative pressure suction in the second vertical tube 62 pulls the tail yarn out from the bottom of the winding cylinder, allowing it to enter the interior of the second vertical tube 62 through the through-hole 21 and the tail yarn adsorption port. Since the telescopic tube 53 has not yet descended at this time, the distance between the first vertical tube 52 and the top of the winding cylinder is relatively large, and the negative pressure suction of the first vertical tube 52 has little effect on the head yarn at the top of the winding cylinder. The head yarn will not be sucked into the first vertical tube 52 at this stage, thus achieving the design goal of prioritizing the processing of the tail yarn. After the telescopic tube 53 descends and covers the winding cylinder, the head yarn at the top of the winding cylinder will be subjected to the negative pressure suction of the first vertical tube 52. At this time, the tail yarn at the bottom of the winding cylinder has been adsorbed by the second vertical tube 62, and the tail yarn will not be sucked into the first vertical tube 52.

[0024] A tail yarn cutting assembly is installed on the frame 1. The tail yarn cutting assembly consists of three cutting structures, each facing one of the three tail yarn suction ports. Each cutting structure includes a mounting frame 71, which is fixed to the frame 1 by support columns 72. A fixed blade 73 is fixed to the bottom surface of the mounting frame 71. The cutting structure also includes a movable blade 74 and a shaft 75. The movable blade 74 is located below the mounting frame 71, and the fixed blade 73 is fixed to the bottom surface of the mounting frame 71 with its cutting edge facing the movable blade 74 and opposite to the cutting edge of the movable blade 74. The shaft 75... The movable blade 74 is fixedly sleeved on the shaft 75 and rotates on the frame 1. When the shaft 75 rotates, the movable blade 74 rotates synchronously with the shaft 75. During the rotation, the blade of the movable blade 74 passes through the blade position of the fixed blade 73, forming a shearing action. When the movable blade 74 rotates to the position where it intersects with the fixed blade 73, the tail yarn passing between the two is cut off. The mounting frame 71 is set between the tail yarn suction port and the second vertical tube 62. Its interior is hollow, allowing the tail yarn to pass through the tail yarn suction port, then through the mounting frame 71 and into the second vertical tube 62.

[0025] When the winding coil moves directly below the delivery robot 3, the tail yarn of the winding coil is sucked into the second vertical pipe 62. At this time, the tail yarn passes through the mounting frame 71. When the tail yarn is cut, the shaft 75 rotates and drives the movable blade 74 to rotate. When the movable blade 74 rotates, it passes through the fixed blade 73 and cuts the tail yarn that has passed through the mounting frame 71. The cut tail yarn is directly sucked into the second negative pressure suction pipe 61 and finally sucked into the tail yarn processing module. The tail yarn processing module is prior art and is not shown in the figure. It will not be described in detail here. Therefore, with this design, the present invention can complete the processing of the winding tail yarn while processing the winding head yarn, without the need for additional processing of the tail yarn. This reduces the number of steps of the delivery robot 3 and improves work efficiency. During the entire head yarn processing and tail yarn processing process, the negative pressure fan 4 keeps running continuously, and the three first vertical pipes 52 and the three second vertical pipes 62 always maintain a negative pressure adsorption state.

[0026] The implementation principle of this embodiment is as follows: The conveying device 2 simultaneously conveys the three winding cylinders, after their positions have been arranged, to the area directly below the delivery robot 3. The three winding cylinders correspond to the working positions of the three through-holes 21, the three tail yarn suction ports, and the three first vertical pipes 52 and the second vertical pipe 62, respectively. The negative pressure fan 4 runs continuously, keeping the first vertical pipes 52 and the second vertical pipes 62 in a negative pressure suction state. After the winding cylinders are in place, the tail yarn is first sucked into the second vertical pipe 62 through the through-holes 21 and the tail yarn suction ports under the negative pressure suction, and then passes through the mounting frame 71. The cylinder 54 drives the connecting frame 55 to move downwards. The three telescopic tubes 53 extend and fit over the top of the three winding cylinders. The negative pressure suction of the first vertical tube 52 draws the yarn at the top of the winding cylinder into the first vertical tube 52. Then, the shaft 75 rotates, causing the movable blade 74 to rotate. The movable blade 74 cooperates with the fixed blade 73 to cut the tail yarn passing through the mounting frame 71. The cut tail yarn is then drawn into the second negative pressure suction tube 61 for collection. Furthermore, the cylinder 54 resets, causing the telescopic tubes 53 to retract, and the yarn is drawn into the first negative pressure suction tube 51 for concentrated traction. The processing of the yarn and the tail yarn is completed within the same working cycle, without the need for additional steps, thus improving the working efficiency of the yarn feeding machine.

[0027] Example 2: Based on Example 1, this example discloses an automatic yarn feeding machine for winding, referring to... Figure 6-9 A drive assembly is installed on the frame 1. The drive assembly includes a sliding structure and a linkage structure. The drive assembly is used to control the rotation of three shafts 75. The sliding structure includes three gears 81 and a rack 82. The three gears 81 are respectively fixedly sleeved on the three shafts 75. The rack 82 is slidably mounted on the frame 1. A limit slide 83 is provided on the rack 82. A limit block 84 is provided in the limit slide 83. The limit block 84 is fixed on the frame 1. A retaining ring 85 is fixed to the top of the limit block 84. The bottom surface of the rack 82 is in contact with the frame 1, and the top surface of the rack 82 is in contact with the retaining ring 85. The limit slide 83 is opened in the length direction of the rack 82 and extends along the extension direction of the rack 82. The limit block 84 is fixed on the frame 1 and passes through the limit slide 85. In the sliding track 83, the limiting block 84 cooperates with the limiting track 83 to keep the rack 82 in a straight line during movement, preventing it from deviating or coming off. The retaining ring 85 is fixed to the top of the limiting block 84, and its lower surface is in contact with the top surface of the rack 82 to prevent the rack 82 from jumping up and coming off the limiting block 84 due to vibration or uneven force during operation. The three gears 81 have the same tooth shape and number of teeth, and the installation positions of the three gears 81 on the shaft 75 are corresponding and located at the same horizontal height. The rack 82 is arranged horizontally on the frame 1, and its tooth surface meshes with the three gears 81 respectively. When the rack 82 moves horizontally, the three gears 81 rotate synchronously in the same direction, thereby driving the three shafts 75 to rotate synchronously.

[0028] The linkage structure includes a guide rail 91, which is fixed on the frame 1 and is arranged vertically. A slide block 92 is slidably mounted on the guide rail 91. The guide rail 91 is vertically fixed on the side wall of the frame 1 to provide vertical guidance for the slide block 92. The slide block 92 is embedded in the guide rail 91 and can slide up and down along the guide rail 91. A crossbar 93 is fixed to the side of the slide block 92 and extends horizontally outward. The position of the crossbar 93 is directly below the connecting frame 55. When the connecting frame 55 moves downward under the drive of the cylinder 54, the connecting frame 55 will contact and press down the crossbar 93. The crossbar 93 is connected to the frame 1 through a tension spring 94. The tension spring 94 is always in a stretched state and applies an upward pulling force to the crossbar 93 so that the crossbar 93 is kept in the upper limit position when it is not subjected to external downward pressure. A first movable sleeve 95 is rotatably mounted on the crossbar 93.

[0029] The linkage structure also includes two supports 97, both of which are fixed to the top surface of the rack 82. A pin 98 is fixed between the two supports 97. A second movable sleeve 99 is rotatably sleeved on the pin 98. A first movable sleeve 95 is rotatably sleeved on the crossbar 93 and can rotate freely on the crossbar 93. A second movable sleeve 99 is rotatably sleeved on the pin 98 and can also rotate freely on the pin 98. The first movable sleeve 95 and the second movable sleeve 99 are connected by a connecting rod 96. The crossbar 93 is located directly below the connecting frame 55. When the crossbar 93 moves up and down, the first movable sleeve 95 moves up and down with the crossbar 93, and the motion is transmitted to the second movable sleeve 99 through the connecting rod 96, so that the second movable sleeve 99 drives the rack 82 to move in the horizontal direction.

[0030] When the yarn at the end of the winding is adsorbed, cylinder 54 operates, driving connecting frame 55 to move downward, so that the three telescopic tubes 53 are respectively fitted onto the three winding tubes. During this process, connecting frame 55 presses down on crossbar 93, causing crossbar 93 to move downward. When connecting frame 55 moves downward, its bottom surface first contacts crossbar 93, and then continues to apply downward pressure to crossbar 93 as it continues to move downward, causing crossbar 93 to overcome the tension of tension spring 94 and move downward. When crossbar 93 moves downward, first movable sleeve 95 moves downward synchronously with crossbar 93, and connecting rod 96... One end descends, while the other end pushes the second movable sleeve 99 to move horizontally, thereby driving the rack 82 to slide horizontally. The sliding of the rack 82 causes the three gears 81 to rotate synchronously, which in turn drives the three shafts 75 and the movable blade 74 fixed on the shafts 75 to rotate synchronously, completing the cutting of the tail yarn. When the cylinder 54 resets and the connecting frame 55 moves upward, the crossbar 93 resets upward under the action of the tension spring 94, and pulls the rack 82 to move in the opposite direction through the connecting rod 96, causing the three gears 81 to rotate in the opposite direction. The movable blade 74 returns to its initial position, preparing for the next cutting action.

[0031] Through the linkage structure, the cutting action and the downward pressing action of the telescopic tube 53 are completed synchronously. The power source for cutting and the driving power source for telescopic tube 53 are the same cylinder 54. There is no need to configure a separate motor or cylinder 54 for the tail yarn cutting component, which simplifies the power system of the whole machine, reduces manufacturing costs, and ensures precise synchronization of the head yarn processing and tail yarn cutting in time.

[0032] The implementation principle of this embodiment is as follows: During the process of cylinder 54 driving connecting frame 55 to move downward, causing three telescopic tubes 53 to extend and be sleeved on three winding cylinders for yarn adsorption, the downward movement of connecting frame 55 synchronously presses down crossbar 93; crossbar 93 moves vertically through guide rail 91 and slide block 92, and the first movable sleeve 95 on it transmits the motion to the second movable sleeve 99 through connecting rod 96, and the second movable sleeve 99 drives rack 82 to slide horizontally; when rack 82 slides, it meshes with three gears 81, driving the three gears 81 to rotate synchronously, thereby causing the three shafts 75 to synchronously drive the three movable blades 74 to rotate; during the rotation, the movable blades 74 cooperate with the fixed blades 73 to cut the tail yarn passing through the mounting frame 71. The tail yarn cutting action and the yarn adsorption action are driven by the same cylinder 54, forming a linkage effect, and there is no need to set up a separate power source for the cutting action.

[0033] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automatic yarn feeding machine for winding, characterized in that, include: The frame (1) has three tail yarn adsorption ports; The conveying device (2) is installed on the frame (1) for conveying the winding yarn. The frame of the conveying device (2) has three through holes (21) for the tail yarn of the winding yarn to pass through. A delivery robot (3) is mounted on a frame (1) for gripping and delivering winding cylinders; Negative pressure fan (4) is installed on frame (1); A yarn processing assembly, arranged on the frame (1), is used to process the wound yarn, and the yarn processing assembly includes a cylinder (54). A tail yarn processing assembly is arranged on the frame (1) and is positioned opposite the head yarn processing assembly. It is used to process the tail yarn of the winding machine. The tail yarn cutting assembly is arranged on the frame (1) and located between the head yarn processing assembly and the tail yarn processing assembly, and is used to cut the tail yarn; The drive assembly, arranged on the frame (1), includes a sliding structure and a linkage structure. The sliding structure is used to make the tail yarn cutting assembly move, and the cylinder (54) drives the sliding structure to move through the linkage structure.

2. The automatic yarn feeding machine for winding as described in claim 1, characterized in that, The veil processing assembly also includes a first negative pressure suction tube (51), which is fixed on the frame (1). The first negative pressure suction tube (51) is arranged in a horizontal direction and is connected to the suction end of the negative pressure fan (4) through a pipeline. Three first vertical tubes (52) are connected to the first negative pressure suction tube (51). Each first vertical tube (52) is arranged in a vertical direction. The end of each of the three first vertical tubes (52) away from the first negative pressure suction tube (51) is connected to a telescopic tube (53). The cylinder (54) is mounted on the frame (1). A connecting frame (55) is fixed to the telescopic end of the cylinder (54). A connecting plate (56) is fixed on the connecting frame (55). The connecting plate (56) is connected to the end of each of the three telescopic tubes (53) away from the corresponding first vertical tube (52).

3. The automatic yarn feeding machine for winding according to claim 2, characterized in that, The tail yarn processing assembly includes a second negative pressure suction tube (61), which is fixed on the frame (1). The second negative pressure suction tube (61) is arranged in a horizontal direction and is connected to the suction end of the negative pressure fan (4) through a pipeline. Three second vertical pipes (62) are connected to the second negative pressure suction tube (61), and the three second vertical pipes (62) are respectively arranged opposite to the three first vertical pipes (52).

4. The automatic yarn feeding machine for winding according to claim 3, characterized in that, The three tail yarn adsorption ports are respectively positioned opposite the three second vertical tubes (62), and the three tail yarn adsorption ports are respectively positioned opposite the three through ports (21).

5. An automatic yarn feeding machine for winding according to claim 3, characterized in that, The tail yarn cutting assembly consists of three cutting structures, each of which is positioned directly opposite a tail yarn suction port. The cutting structure includes a mounting frame (71), which is fixed to the frame (1) by a support column (72). A fixed blade (73) is fixed on the bottom surface of the mounting frame (71). The cutting structure also includes a movable blade (74) and a shaft (75). The movable blade (74) is located directly below the mounting frame (71). The shaft (75) is rotatably mounted on the frame (1). The movable blade (74) is fixedly sleeved on the shaft (75).

6. An automatic yarn feeding machine for winding according to claim 5, characterized in that, The sliding structure includes three gears (81) and a rack (82). The three gears (81) are respectively fixedly sleeved on three shafts (75). The rack (82) is slidably mounted on the frame (1). A limit slide (83) is provided on the rack (82). A limit block (84) is provided in the limit slide (83). The limit block (84) is fixed on the frame (1). A retaining ring (85) is fixed at the top of the limit block (84).

7. An automatic yarn feeding machine for winding according to claim 6, characterized in that, The bottom surface of the rack (82) is in contact with the frame (1), and the top surface of the rack (82) is in contact with the retaining ring (85).

8. An automatic yarn feeding machine for winding according to claim 7, characterized in that, The linkage structure includes a guide rail (91), which is fixed on the frame (1) and is arranged in a vertical direction. A slide block (92) is slidably arranged on the guide rail (91). A crossbar (93) is fixed on the side of the slide block (92). The crossbar (93) is connected to the frame (1) through a tension spring (94). A first movable sleeve (95) is rotatably sleeved on the crossbar (93). The linkage structure also includes two brackets (97). Both brackets (97) are fixed on the top surface of the rack (82). A pin (98) is fixed between the two brackets (97). A second movable sleeve (99) is rotatably sleeved on the pin (98). The first movable sleeve (95) and the second movable sleeve (99) are connected by a connecting rod (96). The crossbar (93) is located directly below the connecting frame (55).

9. An automatic yarn feeding machine for winding according to claim 8, characterized in that, In the initial state, the slide (92) is located at the top of the guide rail (91), and the connecting rod (96) is inclined.

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