Automatic yarn feeding machine tube pulling device

Abstract

This utility model relates to a tube-pulling device for an automatic yarn feeding machine, comprising a tube-pulling conveyor belt mechanism, a lower tube-protecting mechanism, a middle tube-protecting mechanism, an upper tube-protecting mechanism, and a tube-discharging mechanism. The tube-pulling conveyor belt mechanism is a vertically arranged conveyor belt. The lower, middle, and upper tube-protecting mechanisms are sequentially arranged from bottom to top, connected end-to-end on the outside of the tube-pulling conveyor belt mechanism. The lower part of the tube-pulling conveyor belt mechanism and the lower tube-protecting mechanism are mounted on an opening and closing drive mechanism, which drives the lower part of the tube-pulling conveyor belt mechanism and the lower tube-protecting mechanism to move away from or towards each other. The upper tube-protecting mechanism is mounted on a tube-discharging drive mechanism, which drives the upper tube-protecting mechanism to move away from or towards the tube-pulling conveyor belt mechanism. The top of the middle tube-protecting mechanism is provided with a tube-discharging slide, which connects to the tube-discharging mechanism. This utility model has simple operation, short tube-pulling interval, and can significantly improve tube-pulling efficiency.

Description

Technical Field

[0001] This utility model relates to a tube-pulling device used in the automatic yarn feeding equipment of an automatic winding machine, belonging to the field of textile machinery and equipment. Background Technology

[0002] For example, Chinese Patent Publication No. CN109368402A describes a yarn feeding system for an automatic winding machine; Chinese Patent Publication No. CN108557584A describes an automatic head-finding device for an automatic winding machine; and Chinese Patent Publication No. CN208292189U describes a yarn sorting device for an automatic head-finding device in an automatic winding machine. To achieve automatic yarn feeding in an automatic winding machine, a dedicated yarn sorting device is installed. In this sorting device, when unqualified yarn tubes or bobbins are generated, the yarn tubes need to be pulled off the base; this is called a tube-pulling device. Figure 1 As shown, remove yarn tube A from base B.

[0003] Yarn tube A, which has fine yarn wrapped around it, often requires a relatively precise tube-pulling device, such as a multi-axis industrial robotic arm, to prevent the yarn from tangling around the equipment and causing malfunctions. This results in higher equipment investment costs.

[0004] Therefore, it is necessary to design a specialized tube removal device to achieve efficient, reliable, and low-cost tube removal operations. Utility Model Content

[0005] The purpose of this invention is to provide a tube-pulling device for an automatic yarn feeding machine. A special tube-pulling device is designed to meet the need to pull the yarn tube off the base, achieving efficient, reliable, and relatively low-cost tube pulling.

[0006] To achieve the above-mentioned utility model objectives, this utility model provides a tube pulling device for an automatic yarn feeding machine, located on a tube yarn conveying device, including a tube pulling conveyor belt mechanism, a lower tube protection mechanism, a middle tube protection mechanism, an upper tube protection mechanism, and a tube discharging mechanism;

[0007] The tube-pulling conveyor belt mechanism is a vertically installed and running conveyor belt. The lower tube protection mechanism, the middle tube protection mechanism, and the upper tube protection mechanism are arranged sequentially from bottom to top, and are connected end to end on the outside of the tube-pulling conveyor belt mechanism.

[0008] The lower part of the tube-pulling conveyor belt mechanism and the lower tube-protecting mechanism are mounted on the opening and closing drive mechanism. The opening and closing drive mechanism drives the lower part of the tube-pulling conveyor belt mechanism and the lower tube-protecting mechanism to move away from each other or closer to each other.

[0009] The upper tube protection mechanism is installed on the tube exit drive mechanism, and the tube exit drive mechanism drives the upper tube protection mechanism away from or close to the tube pulling conveyor belt mechanism.

[0010] The top of the central pipe protection mechanism is equipped with a pipe outlet slide, which is connected to the pipe outlet mechanism.

[0011] As a further improvement of this utility model, the tube pulling conveyor belt mechanism includes a drive motor, a drive pulley, a tube pulling conveyor belt, and a swing pulley and a swing frame located at the bottom.

[0012] The drive motor is connected to the drive pulley;

[0013] The swing frame is located at the bottom, and the top of the swing frame is hinged to the frame via a swing shaft. A swing pulley is installed at the bottom of the swing frame. The middle part of the swing frame is connected to a swing rod in the opening and closing drive mechanism.

[0014] The tube-pulling conveyor belt is installed between the drive pulley and the oscillating pulley.

[0015] As a further improvement of this utility model, the lower tube protection mechanism includes a lower tube protection plate that can be opened and closed.

[0016] Two fixing lugs are installed at intervals on the outer side of the lower protective plate;

[0017] A pivot is fitted onto the fixed ear, and a swing arm is connected to it;

[0018] The upper and lower fixed lugs connect the swing arm to the swing plate;

[0019] The upper corner of the swing plate is hinged to the frame by a pin;

[0020] The middle part of the swing plate is connected to a lever in the opening and closing drive mechanism.

[0021] Furthermore, the bottom of the lower protective plate is folded outward to form a lower guide opening.

[0022] Furthermore, the lower part of the swing plate extends downward to form a pressure plate, and a pressure wheel is installed at the bottom of the pressure plate.

[0023] As a further improvement of this utility model, the opening and closing drive mechanism includes an opening and closing drive element;

[0024] The output end of the opening and closing drive element is connected to a drive swing arm. One end of the drive swing arm is rotatably mounted on the frame through a bearing and passes through the frame. It is connected to the swing head on the other side of the frame. The drive swing arm rotates and swings synchronously with the swing head.

[0025] The swing head has two swing hinge points on both sides of the bearing, which are respectively hinged to the first swing rod and the second swing rod;

[0026] When the oscillating head oscillates, it drives the first and second oscillating arms to move relative to each other;

[0027] The output end of the first swing arm is hinged to the lower tube protection mechanism, driving the lower tube protection mechanism to perform opening and closing movements;

[0028] The output end of the second swing arm is hinged to the lower part of the tube-pulling conveyor belt mechanism, driving the lower part of the tube-pulling conveyor belt mechanism to perform opening and closing movements.

[0029] Furthermore, the opening and closing drive element is a drive cylinder, including a drive cylinder body and a drive piston rod;

[0030] The rear end of the drive cylinder is hinged to the frame, and the front end of the drive piston rod is hinged to the drive rocker arm.

[0031] As a further improvement of this utility model, the middle tube protection mechanism is located above the lower tube protection mechanism;

[0032] The central pipe protection mechanism is equipped with a central pipe protection plate;

[0033] The outer side of the middle protective plate has two fixing ears, one on the top and one on the bottom. A rotating shaft is fitted onto the fixing ears and connected to a swing arm.

[0034] The upper and lower fixed lugs connect the swing arm to the frame;

[0035] A spring is installed between the swing arm and the frame;

[0036] The top of the middle protective pipe plate is provided with an outwardly inclined outlet slide.

[0037] As a further improvement of this utility model, the upper tube protection mechanism is located above the middle tube protection mechanism;

[0038] The upper pipe protection mechanism is equipped with an upper pipe protection plate;

[0039] The upper protective plate has two fixing ears on the outside, one on the top and one on the bottom. A rotating shaft is fitted onto the fixing ear and connected to a swing arm.

[0040] The upper and lower fixed lugs connect the swing arm to the frame;

[0041] A spring is installed between the upper swing arm and the frame;

[0042] The lower swing arm is a swing rod, which extends further to form a drive rod. The connection between the swing rod and the drive rod is connected to the frame via a hinge shaft.

[0043] The end of the drive rod is equipped with a drive shaft;

[0044] The tube outlet drive mechanism includes a tube outlet drive element, which is a cylinder, including a drive cylinder body and a drive piston rod;

[0045] The tail of the drive cylinder is connected to the frame, and a drive plate is installed at the front end of the drive piston rod. An arc-shaped guide groove is opened on the drive plate, and the drive shaft is located in the guide groove.

[0046] Furthermore, the bottom of the upper protective plate folds outward to form a pipe unloading guide, which connects with the top of the pipe outlet slide.

[0047] The automatic yarn feeding machine tube pulling device of this utility model has a tube pulling conveyor belt mechanism that can always keep moving. Through the intermittent movement of the opening and closing drive element, the tube yarn is connected and pulled out. When the tube yarn is transported upward away from the lower tube protection mechanism, the opening and closing drive element can be activated again to connect the tube yarn. When the tube yarn is moved upward through the middle tube protection mechanism and enters the upper tube protection mechanism, the tube exit drive element can be activated in time to output the tube yarn into the tube exit mechanism, thus realizing tube exit.

[0048] The automatic yarn feeding machine tube pulling device of this utility model has simple operation and short tube pulling interval, which can significantly improve tube pulling efficiency. The entire tube pulling device has only one tube pulling conveyor belt and fewer rotating mechanisms, which can effectively avoid the yarn ends on the tube getting tangled and causing equipment jamming. Attached Figure Description

[0049] Figure 1 This is a schematic diagram showing the yarn tube being pulled off the base.

[0050] Figure 2 This is a schematic diagram illustrating the installation and application of the tube-pulling device for the automatic yarn feeding machine of this utility model;

[0051] Figure 3 for Figure 2 A magnified view of a portion of the image;

[0052] Figure 4 This is a schematic diagram of the overall structure of the tube-pulling device for the automatic yarn feeding machine of this utility model;

[0053] Figure 5 This is a schematic diagram of the internal structure of the tube-pulling device for the automatic yarn feeding machine of this utility model. Figure 1 ;

[0054] Figure 6 This is a schematic diagram of the internal structure of the tube-pulling device for the automatic yarn feeding machine of this utility model. Figure 2 ;

[0055] Figure 7 This is a schematic diagram of the lower installation structure of the lower pipe protection mechanism and the lower pipe pulling conveyor belt mechanism;

[0056] Figure 8 This is a schematic diagram of the drive connection for the opening and closing drive mechanism;

[0057] Figure 9 This is a schematic diagram of the drive structure of the opening and closing drive mechanism;

[0058] Figure 10 This is a schematic diagram of the overall structure of the central protection and maintenance mechanism;

[0059] Figure 11 This is a schematic diagram of the overall structure of the upper protective pipe mechanism. Detailed Implementation

[0060] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0061] This utility model is applied to the yarn handling device in the automatic yarn feeding machine of a winding machine. The overall application is as follows: Figure 2 As shown, it includes a bobbin conveying device 1 and a bobbin pulling device 2 installed above it; the bobbin conveying device 1 is equipped with several bobbin positioning devices 11, which can block the base B, so that only one base B and the bobbin A are in the bobbin pulling device 2 for bobbin pulling operation; the base B after the bobbin A has been pulled is continued to be conveyed forward by the bobbin conveying device 1 and flows out of the bobbin pulling device 2; further as... Figure 3 As shown, the lower part of the tube pulling device 2 is equipped with two positioning sensors, namely the base positioning sensor 21 and the tube yarn positioning sensor 22, which are used to detect the status of the base B and the tube yarn A inside the tube pulling device 2, so as to start the tube pulling device 2 and the tube yarn conveying device 1 in a timely manner.

[0062] The automatic yarn feeding machine tube pulling device of this utility model has the following overall structure: Figure 4 As shown, it includes a pipe-pulling conveyor belt mechanism 3, a lower pipe-protecting mechanism 4, a middle pipe-protecting mechanism 6, an upper pipe-protecting mechanism 7, and a pipe-discharging mechanism 8; the specific structure of the pipe-pulling device 2 can be further referred to Figure 5 , Figure 6The tube-pulling conveyor belt mechanism 3 and the lower tube-protecting mechanism 4 are mounted on the opening and closing drive mechanism. The opening and closing drive mechanism drives the lower part of the tube-pulling conveyor belt mechanism 3 and the lower tube-protecting mechanism 4 to move away from each other or closer to each other. When the lower part of the tube-pulling conveyor belt mechanism 3 and the lower tube-protecting mechanism 4 move away from each other, the bottom openings of both become larger, forming a connecting pipe state, which facilitates the tube yarn conveying device 1 to drive the base B carrying the tube yarn A to flow in. The tube yarn A can enter the space between the lower part of the tube-pulling conveyor belt mechanism 3 and the lower tube-protecting mechanism 4 without obstruction. When the base B is stopped by the tube yarn positioning device 11, the base positioning sensor 21 and the tube yarn positioning sensor 22 simultaneously detect the base B and the tube yarn A. At this time, the opening and closing drive mechanism drives the lower part of the tube-pulling conveyor belt mechanism 3 and the lower tube-protecting mechanism 4. When the tube-protecting mechanisms 4 approach each other, the lower part of the tube-pulling conveyor belt mechanism 3 and the lower part of the lower tube-protecting mechanism 4 clamp the tube yarn A. At this time, the tube-pulling conveyor belt mechanism 3 is activated, and the tube yarn A can be conveyed upward by the friction of the conveyor belt, that is, pulled away from the base B. When the tube yarn positioning sensor 22 detects that the tube yarn A has left, it proves that the tube yarn A has completely entered between the driving tube-pulling conveyor belt mechanism 3 and the lower tube-protecting mechanism 4. Then the yarn positioning device 11 can be activated to release the base B away from the current working position and flow out of the tube-pulling device 2. When the tube yarn A enters the middle tube-protecting mechanism 6, the opening and closing drive mechanism can drive the lower part of the tube-pulling conveyor belt mechanism 3 and the lower tube-protecting mechanism 4 to move away from each other again, forming a tube-connecting state, waiting for the next base B and tube yarn A to be pulled.

[0063] Further as Figures 5-11 As shown, the tube-pulling conveyor belt mechanism 3 is a vertically arranged conveyor belt, including a drive motor 31, a drive pulley 32, a tube-pulling conveyor belt 33, and a swing pulley 34 and a swing frame 35 located at the bottom. The drive motor 31 is installed at the top and connected to the drive pulley 32. The swing frame 35 is located at the bottom. The top of the swing frame 35 is hinged to the frame through a swing shaft 36. The swing pulley 34 is installed at the bottom of the swing frame 35. The tube-pulling conveyor belt 33 is installed between the drive pulley 32 and the swing pulley 34. The drive motor 31 drives the drive pulley 32, which in turn drives the tube-pulling conveyor belt 33 to operate. The swing frame 35 is connected to an opening and closing drive mechanism. The opening and closing drive mechanism drives the lower part of the swing frame 35, especially the swing pulley 34 and the lower tube-pulling conveyor belt 33, to swing around the swing shaft 36.

[0064] The lower tube protection mechanism 4, the middle tube protection mechanism 6, and the upper tube protection mechanism 7 are connected to each other in sequence and are located outside the driving surface of the tube pulling conveyor belt 33. They cooperate with the driving surface of the tube pulling conveyor belt 33 to wrap the tube yarn A, press the tube yarn A against the tube pulling conveyor belt 33, and then use the friction force generated between the tube pulling conveyor belt 33 and the tube yarn A to drive the tube yarn A to move upward along the tube pulling conveyor belt 33.

[0065] like Figures 5-9As shown, the lower tube protection mechanism 4 includes a lower tube protection plate 41 that can be opened and closed. The bottom of the lower tube protection plate 41 is folded outward to form a lower guide opening 411. Two fixed ears 42 are installed at intervals on the outer side of the lower tube protection plate 41. A rotating shaft is sleeved on the fixed ears 42 and connected to a swing arm 43. The swing arm 43 connected to the upper and lower fixed ears 42 is hinged to a swing plate 48. The lower part of the swing plate 48 extends downward to form a pressing plate 45. A pressing wheel 44 is installed at the bottom of the pressing plate 45. Preferably, the pressing wheel 44 can rotate freely. The upper corner of the swing plate 48 is hinged to the frame of the tube pulling device 2 by a pin 49.

[0066] The middle part of the swing plate 48 is connected to the opening and closing drive mechanism. The opening and closing drive mechanism pushes the swing plate 48 to swing relative to the frame around the pin 49, thereby driving the upper and lower swing arms 43 and the pressure plate 45 to move, and finally driving the fixed ear 42, the lower protective tube plate 41, and the pressure wheel 44 to move.

[0067] like Figures 7-9 As shown, the opening and closing drive mechanism includes an opening and closing drive element 51, which is preferably a cylinder, including a drive cylinder body 511 and a drive piston rod 512. The tail of the drive cylinder body 511 is hinged to the frame, and the front end of the drive piston rod 512 is hinged to a drive swing rod 52. The other end of the drive swing rod 52 is mounted on the frame via a bearing and passes through the frame, connecting to a swing head 53 on the other side of the frame. The swinging motion of the drive swing rod 52 directly drives the swing head 53 to swing. The swing head 53 has two swing hinge points on both sides of the bearing, respectively hinged to a first swing rod 54 and a second swing rod 55. When the swing head 53 swings, it drives the first swing rod 54 and the second swing rod 55 to move relative to each other, one moving outward and the other moving inward. The end of the first swing rod 54 is hinged to the lower middle part of the swing plate 48, and the end of the second swing rod 55 is hinged to the middle part of the swing frame 35 via a hinge shaft 37.

[0068] like Figure 9As shown, when the drive cylinder of the opening / closing drive element 51 unfolds, the drive piston rod 512 extends outward, causing the drive swing rod 52 and the swing head 53 to rotate counterclockwise. This, in turn, drives the first swing rod 54 to move inward (from the lower tube protection mechanism 4 towards the tube pulling conveyor belt mechanism 3), and the second swing rod 55 to move outward (from the tube pulling conveyor belt mechanism 3 towards the lower tube protection mechanism 4). The first swing rod 54 drives the swing plate 48 to move inward around the pin 49, thereby causing the lower tube protection plate 41 to move inward. Since the clamping wheel 44 is located at the bottom of the swing plate 48, its inward movement distance is greater than that of the lower protective pipe plate 41. Therefore, the clamping wheel 44 also moves inward and presses against the outside of the lower protective pipe plate 41, applying an inward clamping force to the lower protective pipe plate 41. Using the clamping wheel 44 can better adapt to the clamping angle. At the same time, the second swing rod 55 drives the swing frame 35 to move outward through the hinge shaft 37, thereby causing the swing frame 35 to rotate around the swing shaft 36, driving the swing pulley 34 and the lower pipe pulling conveyor belt 33 to move outward together.

[0069] That is, when the drive cylinder of the opening and closing drive element 51 unfolds, the lower protective pipe plate 41 approaches the swing pulley 34 and the lower pipe pulling conveyor belt 33 to achieve clamping; correspondingly, when the drive cylinder of the opening and closing drive element 51 retracts, the lower protective pipe plate 41 moves away from the swing pulley 34 and the lower pipe pulling conveyor belt 33 to achieve opening.

[0070] like Figure 10 As shown, the middle tube protection mechanism 6 is located above the lower tube protection mechanism 4, and is also provided with a middle tube protection plate 61. It also has two fixed ears 62 at the top and bottom. A rotating shaft is sleeved on the fixed ears 62 and connected to a swing arm 63. The swing arm 63 connected to the upper and lower fixed ears 62 is hinged to the frame. A spring 64 is also provided between the swing arm 63 and the frame, so that the middle tube protection plate 61 of the middle tube protection mechanism 6 is always pressed against the tube pulling conveyor belt 33.

[0071] The top of the middle pipe plate 61 of the middle pipe protection mechanism 6 is provided with an outwardly inclined pipe outlet slide 68, which is connected to the pipe outlet mechanism 8.

[0072] like Figure 11 As shown, the upper tube-protecting mechanism 7 is located above the middle tube-protecting mechanism 6, and is also equipped with an upper tube-protecting plate 71. It also has two fixed ears 72 at its top and bottom, with rotating shafts fitted onto the fixed ears 72 and connected to swing arms 73. The swing arms 73, connected to the two fixed ears 72, are hinged to the frame. A spring 74 is also provided between the upper swing arm 73 and the frame, ensuring that the upper tube-protecting plate 71 of the upper tube-protecting mechanism 7 always presses against the tube-pulling conveyor belt 33. The bottom of the upper tube-protecting plate 71 folds outward to form a tube-unloading guide 711, which connects to the top of the tube-exit slide 68.

[0073] The upper tube protection mechanism 7 has a lower swing arm, including a swing rod 751 connected to a fixed lug 72. The bottom of the swing rod 751 is hinged to the fixed lug 72, and the top of the swing rod 751 extends to form a drive rod 753. The connection between the swing rod 751 and the drive rod 753 is connected to the frame via a hinge shaft 752. The end of the drive rod 753 is provided with a drive shaft 754. The upper tube protection mechanism 7 also has a tube outlet drive, including a tube outlet drive element 78. The tube drive element 78 is preferably a cylinder, including a drive cylinder body 781 and a drive piston rod 782. The tail of the drive cylinder body 781 is hinged to the frame, and a drive plate 76 is installed at the front end of the drive piston rod 782. An arc-shaped guide groove 77 is opened on the drive plate 76, and the drive shaft 754 is located in the guide groove 77.

[0074] The drive piston rod 782 of the tube discharge drive element 78 remains extended. At this time, the drive shaft 754 is located in the middle area of ​​the guide groove 77 and can move freely within it. When a tube yarn A is conveyed upward with the tube pulling conveyor belt 33 and reaches the upper tube protection mechanism 7, the tube yarn A will push open the upper tube protection plate 71. As the tube pulling conveyor belt 33 continues to move upward, the drive shaft 754 moves freely within the guide groove 77, and the spring 74 extends and retracts, adaptively adjusting the posture of the upper tube protection plate 71. When the sensor detects that the tube yarn A has completely left the middle tube protection mechanism 6 and the bottom of the tube yarn A has passed the tube discharge slide 68, the tube discharge drive element 78... The action drives the piston rod 782 to retract downwards, causing the drive plate 76 to move downwards. The top of the guide groove 77 drives the drive shaft 754 to move downwards, which in turn drives the drive rod 753 to move downwards. Around the hinge shaft 752, the swing rod 751 is lifted upwards, ultimately driving the fixed ear 72 located below to lift the bottom of the upper tube plate 71 outwards. This causes the tube yarn A located between the upper tube plate 71 and the tube pulling conveyor belt 33 to lose its clamping force. The tube yarn A lacks friction with the tube pulling conveyor belt 33, and the weight of the tube yarn A causes it to fall downwards onto the tube exit slide 68. It then enters the tube exit mechanism 8 along the tube exit slide 68, thus achieving tube exit.

[0075] In the automatic yarn feeding machine tube pulling device of this utility model, the tube pulling conveyor belt mechanism 3 can always keep moving during the process. Through the intermittent movement of the opening and closing drive element 51, the tube yarn A is connected and the tube yarn A is pulled out. When the tube yarn A is moved upward away from the lower tube protection mechanism 4, the opening and closing drive element 51 can be activated again to connect the tube yarn A. When the tube yarn A moves upward through the middle tube protection mechanism 6 and enters the upper tube protection mechanism 7, the tube exit drive element 78 can be activated in time to output the tube yarn A into the tube exit mechanism 8, realizing tube exit.

[0076] The automatic yarn feeding machine tube pulling device of this utility model has a simple operation. Although it is an intermittent operation, the tube pulling interval is short, which can significantly improve the tube pulling efficiency. Moreover, the entire tube pulling device has only one tube pulling conveyor belt 33 and fewer rotating mechanisms, which can effectively avoid the yarn ends on the tube A from getting tangled and causing equipment jamming.

[0077] The preferred embodiments of this utility model have been described in detail above, but this utility model is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this utility model, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A tube-pulling device for an automatic yarn feeding machine, characterized in that, Located on the tube yarn conveying device, it includes a tube pulling conveyor belt mechanism, a lower tube protection mechanism, a middle tube protection mechanism, an upper tube protection mechanism, and a tube exit mechanism; The tube-pulling conveyor belt mechanism is a vertically installed and running conveyor belt. The lower tube protection mechanism, the middle tube protection mechanism, and the upper tube protection mechanism are arranged sequentially from bottom to top, and are connected end to end on the outside of the tube-pulling conveyor belt mechanism. The lower part of the tube-pulling conveyor belt mechanism and the lower tube-protecting mechanism are mounted on the opening and closing drive mechanism. The opening and closing drive mechanism drives the lower part of the tube-pulling conveyor belt mechanism and the lower tube-protecting mechanism to move away from each other or closer to each other. The upper tube protection mechanism is installed on the tube exit drive mechanism, and the tube exit drive mechanism drives the upper tube protection mechanism away from or near the tube pulling conveyor belt mechanism. The top of the central pipe protection mechanism is equipped with a pipe outlet slide, which is connected to the pipe outlet mechanism.

2. The tube-pulling device for an automatic yarn feeding machine as described in claim 1, characterized in that, The tube-pulling conveyor belt mechanism includes a drive motor, a drive pulley, a tube-pulling conveyor belt, and a swing pulley and swing frame located at the bottom. The drive motor is connected to the drive pulley; The swing frame is located at the bottom, and the top of the swing frame is hinged to the frame via a swing shaft. A swing pulley is installed at the bottom of the swing frame. The middle part of the swing frame is connected to a swing rod in the opening and closing drive mechanism. The tube-pulling conveyor belt is installed between the drive pulley and the oscillating pulley.

3. The tube-pulling device for an automatic yarn feeding machine as described in claim 1, characterized in that, The lower pipe protection mechanism includes a lower pipe protection plate that can be opened and closed; Two fixing lugs are installed at intervals on the outer side of the lower protective plate; A pivot is fitted onto the fixed ear, and a swing arm is connected to it; The upper and lower fixed lugs connect the swing arm to the swing plate; The upper corner of the swing plate is hinged to the frame by a pin; The middle part of the swing plate is connected to a lever in the opening and closing drive mechanism.

4. The tube-pulling device for an automatic yarn feeding machine as described in claim 3, characterized in that, The bottom of the lower protective plate is folded outward to form a lower guide opening.

5. The tube-pulling device for an automatic yarn feeding machine as described in claim 3, characterized in that, The lower part of the swing plate extends downward to form a pressure plate, and a pressure wheel is installed at the bottom of the pressure plate.

6. The tube-pulling device for an automatic yarn feeding machine as described in any one of claims 1-3, characterized in that, Opening and closing drive mechanism, including opening and closing drive elements; The output end of the opening and closing drive element is connected to a drive swing arm. One end of the drive swing arm is rotatably mounted on the frame through a bearing and passes through the frame. It is connected to the swing head on the other side of the frame. The drive swing arm rotates and swings synchronously with the swing head. The swing head has two swing hinge points on both sides of the bearing, which are respectively hinged to the first swing rod and the second swing rod; When the oscillating head oscillates, it drives the first and second oscillating arms to move relative to each other; The output end of the first swing arm is hinged to the lower tube protection mechanism, driving the lower tube protection mechanism to perform opening and closing movements; The output end of the second swing arm is hinged to the lower part of the tube-pulling conveyor belt mechanism, driving the lower part of the tube-pulling conveyor belt mechanism to perform opening and closing movements.

7. The tube-pulling device for an automatic yarn feeding machine as described in claim 6, characterized in that, The opening and closing drive element is a drive cylinder, including a drive cylinder body and a drive piston rod; The rear end of the drive cylinder is hinged to the frame, and the front end of the drive piston rod is hinged to the drive rocker arm.

8. The tube-pulling device for an automatic yarn feeding machine as described in claim 1, characterized in that, The middle protection structure is located above the lower protection structure; The central pipe protection mechanism is equipped with a central pipe protection plate; The outer side of the middle protective plate has two fixing ears, one on the top and one on the bottom. A rotating shaft is fitted onto the fixing ears and connected to a swing arm. The upper and lower fixed lugs connect the swing arm to the frame; A spring is installed between the swing arm and the frame; The top of the middle protective pipe plate is provided with an outwardly inclined outlet slide.

9. The tube-pulling device for an automatic yarn feeding machine as described in claim 1 or 8, characterized in that, The upper protective structure is located above the middle protective structure; The upper pipe protection mechanism is equipped with an upper pipe protection plate; The upper protective plate has two fixing ears on the outside, one on the top and one on the bottom. A rotating shaft is fitted onto the fixing ear and connected to a swing arm. The upper and lower fixed lugs connect the swing arm to the frame; A spring is installed between the upper swing arm and the frame; The lower swing arm is a swing rod, which extends further to form a drive rod. The connection between the swing rod and the drive rod is connected to the frame via a hinge shaft. The end of the drive rod is equipped with a drive shaft; The tube outlet drive mechanism includes a tube outlet drive element, which is a cylinder, including a drive cylinder body and a drive piston rod; The tail of the drive cylinder is connected to the frame, and a drive plate is installed at the front end of the drive piston rod. An arc-shaped guide groove is opened on the drive plate, and the drive shaft is located in the guide groove.

10. The tube-pulling device for an automatic yarn feeding machine as described in claim 9, characterized in that, The bottom of the upper protective plate folds outward to form a pipe unloading guide, which connects with the top of the pipe outlet slide.

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