An automatic yarn winder and a winding method

Abstract

The application provides an automatic yarn winding machine and a winding method, which comprise a feeding mechanism, a conveying mechanism, a cradle mechanism and a winding mechanism, the feeding mechanism comprises a hopper and an inclined conveying mechanism, the conveying mechanism comprises a horizontal conveying mechanism and a grabbing mechanism; the hopper is internally provided with a paper tube, the lower end of the inclined conveying mechanism is obliquely inserted into the hopper, and the paper tube in the hopper is conveyed from the lower end to the upper end to the initial end of the horizontal conveying mechanism; the horizontal conveying mechanism conveys the paper tube to the terminal end of the horizontal conveying mechanism along the horizontal direction; the grabbing mechanism grabs the paper tube at the terminal end of the horizontal conveying mechanism and grabs the paper tube to the cradle mechanism; the cradle mechanism is used for clamping the paper tube, the winding mechanism is used for conveying the yarn to the paper tube of the cradle mechanism, and the cradle mechanism and the winding mechanism cooperate to wind the yarn on the paper tube clamped by the cradle mechanism. The application is a full-automatic device, does not need to consume manpower in work, can reduce the labor intensity and production cost of workers, has high work efficiency, and can uniformly wind the yarn.

Description

Technical Field

[0001] This invention relates to the field of textile machinery and equipment technology, and in particular to an automatic yarn winding machine and winding method. Background Technology

[0002] Yarn winding involves pre-winding a portion of yarn onto an empty paper tube, and is a step in the yarn spinning production chain. Currently, domestic spinning mills rely on manual winding by workers or semi-automatic, simple equipment. This method is labor-intensive and inefficient. Therefore, there is an urgent need for an automatic yarn winding machine and method that can reduce labor intensity, improve work efficiency, and lower production costs. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: in order to overcome the shortcomings of the prior art, the present invention provides an automatic yarn winding machine and winding method, which solves the problem that manual winding or semi-automatic equipment winding requires workers to operate, and the yarn is wound evenly, which can effectively reduce the production cost of spinning mills and improve product production efficiency and quality.

[0004] The technical solution adopted by this invention to solve its technical problem is: an automatic yarn winding machine, including a main frame, and a feeding mechanism, a conveying mechanism, a cradle mechanism, and a winding mechanism disposed on the main frame. The feeding mechanism includes a hopper and an inclined conveying mechanism, and the conveying mechanism includes a transverse conveying mechanism and a gripping mechanism. The hopper contains paper tubes. The lower end of the inclined conveying mechanism is inserted into the hopper at an angle, and the upper end extends to the beginning of the transverse conveying mechanism. The inclined conveying mechanism conveys the paper tubes in the hopper from bottom to top to the beginning of the transverse conveying mechanism. The feeding mechanism starts close to the upper end of the inclined conveying mechanism. The gripping mechanism is located at the end of the transverse conveying mechanism. The transverse conveying mechanism conveys the paper tube to the end of the transverse conveying mechanism in a horizontal direction. The gripping mechanism grips the paper tube at the end of the transverse conveying mechanism and grips the paper tube to the cradle mechanism. The cradle mechanism and the winding mechanism are arranged sequentially below the gripping mechanism. The cradle mechanism is used to clamp the paper tube, and the winding mechanism is used to convey the yarn to the paper tube under the cradle mechanism. The cradle mechanism and the winding mechanism cooperate to wind the yarn onto the paper tube clamped by the cradle mechanism.

[0005] Furthermore, the inclined conveying mechanism includes an inclined support, an inclined belt, and a first motor. The inclined belt is rotatably supported on the inclined support, and the first motor drives the inclined belt to rotate. Several guide strips for supporting paper tubes are evenly spaced on the surface of the inclined belt. A side baffle is provided on the inclined support on one side of the inclined belt, and a top baffle is provided on the inclined support at the upper end of the inclined belt. The top baffle is connected to the inclined support through a baffle bracket, and the height of the baffle bracket must ensure that the top baffle is not higher than the axial height of one paper tube.

[0006] Furthermore, the side baffle is L-shaped, inverted above the inclined belt, and has a structure that is narrower at the bottom and wider at the top; the end of the guide bar away from the side baffle has a downwardly inclined bend for guiding the paper tube during screening.

[0007] Furthermore, the transverse conveying mechanism includes a transverse support, a transverse belt, and a second motor. The transverse belt is rotatably supported on the transverse support, and the second motor drives the transverse belt to rotate. The second motor is fixed to the transverse support via a motor bracket. A front paper tube guide plate and a rear paper tube guide plate are respectively provided on the transverse supports on both sides of the transverse belt conveying direction. The front paper tube guide plate is located on one side of the inclined conveying mechanism, and a feed port corresponding to the upper end of the inclined belt is opened on the front paper tube guide plate. The front paper tube guide plate on the side of the feed port in the conveying direction has an outwardly folding guide portion to facilitate adjustment of the paper tube conveying direction. A first proximity switch and a second proximity switch are also provided on the transverse support. The first proximity switch is located at the end of the transverse support and is used to detect whether there is a paper tube. The second proximity switch is located at a position opposite to the end of the feed port and is used to detect whether there is a paper tube.

[0008] Furthermore, to prevent the paper tube from falling from the inclined belt onto the transverse belt and then being ejected from the rear paper tube guide plate due to inertia, a transverse baffle is provided above the rear paper tube guide plate, extending above its top edge. The position of the transverse baffle is opposite to the feed inlet.

[0009] Furthermore, in order to facilitate the gripping mechanism and avoid interference between the paper tube clamp and the guide plate, both the front paper tube guide plate and the rear paper tube guide plate are provided with clearance openings near the end of the transverse belt.

[0010] Furthermore, the gripping mechanism includes a gripping bracket, a rodless cylinder, a double-rod cylinder, a finger cylinder, and a paper tube clamping plate. The rodless cylinder is horizontally fixed on the gripping bracket, and the moving body of the rodless cylinder can move horizontally. The double-rod cylinder is vertically arranged and fixed to the moving body of the rodless cylinder. The finger cylinder is connected to the lower end of the push rod of the double-rod cylinder, and a paper tube clamping plate is connected to each of the two fingers of the finger cylinder. Preferably, the paper tube clamping plate is an arc shape that matches the shape of the paper tube, and a clamping cavity for the paper tube is formed between the two paper tube clamping plates.

[0011] To facilitate electrical wiring connections, a cable chain is also included, which is positioned above the gripping bracket.

[0012] During the gripping process, the moving part of the rodless cylinder moves to above the leftmost clearance opening. Then, the push rod of the double-rod cylinder pushes downward, causing the finger cylinder and paper tube clamp to descend. Simultaneously, the finger cylinder controls the paper tube clamp to open, allowing the paper tube at the end of the transverse belt to enter the clamp. The finger cylinder then controls the paper tube clamp to tighten the paper tube. The push rod of the double-rod cylinder retracts, causing the finger cylinder and paper tube to rise. After reaching the appropriate height, the moving part of the rodless cylinder moves the double-rod cylinder, finger cylinder, and paper tube together laterally to the right above the cradle mechanism. Then, the push rod of the double-rod cylinder pushes downward, causing the paper tube to descend between the left and right clamps of the cradle mechanism. The left and right opening / closing cylinders then drive the left and right clamps inward, clamping the paper tube. Finally, the finger cylinder controls the paper tube clamp to open, the push rod of the double-rod cylinder rises, and the moving part of the rodless cylinder returns to above the clearance opening, awaiting the next paper tube gripping.

[0013] Furthermore, the cradle mechanism includes a support frame, a cradle, a left clamp, a right clamp, a clamp opening and closing drive cylinder, a lifting cylinder, a rocking arm, and a rocking shaft. Both ends of the rocking shaft are rotatably connected to the support frame via bearings. One end of the rocking arm is connected to the rocking shaft. The lifting cylinder is located on one side of the rocking arm and connected to it, enabling the rocking arm to swing up and down around the rocking shaft. The cradle has a U-shaped structure, with its bottom fixed to the body of the rocking arm. Two extension arms extend outwards, with opposing left and right clamps at their ends, forming a paper tube clamping space between them. At least one of the left and right clamps is connected to a clamp opening and closing drive cylinder for driving the left and right clamps closer to or further apart.

[0014] The rocker arm includes a main body, on which there are adapter rods and lifting rods. There are two adapter rods, which are respectively located at both ends of the rocker arm. The ends of the adapter rods are also provided with bushings to facilitate connection with the rocker shaft. The lifting rod is located between the two adapter rods, as close to the middle as possible, to ensure that the force of the lifting cylinder can be balanced.

[0015] Furthermore, the winding mechanism includes a grooved cylinder, a third motor, a rocker arm, a pen-shaped cylinder, a nozzle, a yarn guide rod, a yarn detector, a tensioner, and a support platform. The grooved cylinder has shaft connections at both ends, which are rotatably connected to the main frame via bearing seats. One side of the shaft connection is connected to the third motor, which drives the grooved cylinder to rotate. The support platform is connected to the main frame below the grooved cylinder. The lower end of the nozzle seat is fixed to the support platform and located at a lower position on the front side of the grooved cylinder. The nozzle is obliquely connected to the nozzle seat, with its upper end facing the grooved cylinder, and is connected to compressed air to eject yarn. The yarn guide rod, yarn detector, and tensioner are sequentially arranged on the support platform in front of the nozzle seat. The yarn guide rod guides the yarn, the yarn detector detects the yarn, and the tensioner controls the yarn tension. The pen-shaped cylinder is fixed to the main frame in front of the grooved cylinder. One end of the rocker arm is rotatably connected to the actuating end of the pen-shaped cylinder, and the other end of the rocker arm extends towards the grooved cylinder with a hook portion at its end.

[0016] Furthermore, to facilitate the cutting of the yarn, the winding mechanism also includes a yarn cutting assembly, which includes scissors, a scissor support, and a scissor cylinder. The scissor support is fixed on the main frame below the grooved cylinder, the scissors are connected to the scissor support, and the handle of the scissors is connected to the actuator of the scissor cylinder. The scissor cylinder can drive the scissors to open and close to achieve the cutting action.

[0017] An automatic yarn winding method, using the aforementioned automatic yarn winding machine, further includes the following steps:

[0018] S1: The worker pours empty paper tubes into the hopper. After starting the machine, the inclined conveyor mechanism begins to lift the empty paper tubes upward via the inclined belt. After being guided by the side guide plates, the paper tubes in the wrong direction will be screened out by gravity and fall into the hopper. The paper tubes in the correct direction continue to move upward. The top baffle will screen out the vertical paper tubes and let them fall into the hopper. Only the paper tubes in the correct direction will be conveyed to the top and then fall onto the horizontal belt of the transverse conveyor mechanism. The transverse belt is equipped with front paper tube guide plates and rear paper tube guide plates on both sides. The transverse conveyor mechanism transports the paper tubes to the position of the gripping mechanism. At the same time, the arrangement of the conveyed paper tubes and whether they have reached the position of the gripping mechanism are detected in real time by proximity switches.

[0019] S2: When a paper tube is detected to have reached the gripping mechanism, the vertically arranged double-rod cylinder drives the finger cylinder to move downward to grip the paper tube. After the finger cylinder clamps the paper tube, the double-rod cylinder retracts upward, and the horizontally arranged rodless cylinder drives it to move horizontally. After reaching the designated position, the lifting cylinder of the cradle mechanism controls the cradle 6.1 to lift. At the same time, the clamping plate opening and closing drive cylinder controls the left and right clamping plates to open, so that the paper tube is located in the paper tube clamping space between the left and right clamping plates.

[0020] S3: The tail of the yarn passes through the tensioner, yarn detector, yarn guide rod, and nozzle in sequence. The end of the yarn is sprayed out from the nozzle by compressed air, so that the tail of the yarn is blown between the end of the paper tube and the clamping plate on one side. Then, the clamping plate opening and closing drive cylinder drives the clamping plate to clamp the paper tube and clamp the tail of the yarn between the paper tube and the clamping plate. The finger cylinder releases, the double rod cylinder retracts upward, and the horizontal rodless cylinder drives it to move laterally back to the other end, ready to clamp the next paper tube.

[0021] S4: The third motor controls the rotation of the slotted drum. At this time, the lifting cylinder controls the cradle to descend, so that the empty paper tube contacts the slotted drum. After the yarn completes the specified tail-leaving action, the pen-shaped cylinder drives the rocker arm to rotate. The rocker arm moves the yarn to the winding point at the bottom of the slotted drum. The slotted drum drives the yarn to wind evenly on the paper tube. After completing the winding action of the specified length, the scissors start to cut the yarn. The rocker arm rotates to the initial position, the lifting cylinder controls the cradle to lift, and at the same time, the left and right clamps open. The wound paper tube falls into the bottom cotton sliver tube for storage. This process is completed, and then the next cycle begins. The beneficial effects of this invention are: The automatic yarn winding machine and winding method provided by this invention are fully automatic equipment. They do not require manpower during operation, which can reduce the labor intensity of workers and production costs. They also have high work efficiency and produce even yarn winding. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram of the automatic yarn winding machine of the present invention.

[0024] Figure 2 This is a schematic diagram of the automatic yarn winding machine of the present invention.

[0025] Figure 3 This is a schematic diagram of the transverse conveying mechanism.

[0026] Figure 4 This is a schematic diagram of the transverse conveying mechanism.

[0027] Figure 5 This is a schematic diagram of the gripping mechanism.

[0028] Figure 6 This is a schematic diagram of the swing mechanism.

[0029] Figure 7 This is a schematic diagram of the swing mechanism and the winding mechanism.

[0030] Figure 8 This is a schematic diagram of the shearing component.

[0031] Figure 9 This is a schematic diagram of the yarn tail being sprayed onto the inside of the clamp in step S3.

[0032] Figure 10 This is a schematic diagram of the contact between the paper tube and the groove cylinder in step S4.

[0033] Figure 11 This is a side view of the winding point at the bottom of the drum in step S4, where the yarn is moved.

[0034] Figure 12 This is a front view of the winding point at the bottom of the drum in step S4, where the yarn is moved.

[0035] In the diagram: 1. Hopper; 2. Inclined conveyor mechanism, 2.1. Inclined belt, 2.2. Guide bar, 2.3. Side baffle, 2.4. Top baffle, 2.5. Baffle bracket, 2.6. First motor; 3. Paper tube; 4. Lateral conveyor mechanism, 4.1. Lateral belt, 4.2. Second motor, 4.3. Lateral baffle, 4.4. Front paper tube guide plate, 4.5. Rear paper tube guide plate, 4.6. First proximity switch, 4.7. Second proximity switch, 4.8. Feed inlet, 4.9. Guide section, 4.10. Clearance opening; 5. Gripping mechanism, 5.1. Gripping bracket, 5.2. Rodless cylinder, 5.3. Double-rod cylinder, 5.4. Finger cylinder, 5.5. Paper tube clamp, 5.6. Cable chain; 6. Cradle mechanism, 6.1. Cradle, 6.2. 6.3 Left clamping plate; 6.4 Right clamping plate; 6.5 Left opening and closing cylinder; 6.6 Right opening and closing cylinder; 6.7 Lifting cylinder; 6.8 Swinging arm; 6.9 Swinging shaft; 6.10 Cylinder mounting plate; 6.11 Support frame; 7. Winding mechanism; 7.1 Groove cylinder; 7.2 Bearing seat; 7.3 Third motor; 7.4 Rocker arm; 7.5 Nozzle; 7.6 Pen-shaped cylinder; 7.7 Nozzle seat; 7.8 Yarn guide rod; 7.9 Yarn detector; 7.10 Tensioner; 7.11 Scissors; 7.12 Shearing cylinder; 7.13 Support platform; 7.14 Yarn guide rod bracket; 7.15 Scissors support seat; 8. Main frame; 9. Electrical cabinet; 10. Sliver can; 11. Yarn; 12. Winding section. Detailed Implementation

[0036] The invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention in a schematic manner. Therefore, they only show the components relevant to the invention. Orientations and references (e.g., up, down, left, right, etc.) are only used to aid in the description of the features in the drawings. Therefore, the following specific embodiments are not intended to be restrictive, and the scope of the claimed subject matter is defined solely by the appended claims and their equivalents.

[0037] like Figure 1 and Figure 2As shown, an automatic yarn winding machine of the present invention includes a main frame 8, and a feeding mechanism, a conveying mechanism, a cradle mechanism 6, and a winding mechanism 7 disposed on the main frame 8. The main frame 8 is the supporting component of the entire equipment and is mainly constructed of profiles. The gripping bracket 5.1 of the gripping mechanism 5 and the support frame 6.11 of the cradle mechanism are both part of the main frame 8. The feeding mechanism is used for feeding paper tubes 3, and the conveying mechanism is used for conveying paper tubes 3, including a transverse conveying mechanism 4 and a gripping mechanism 5; the beginning of the transverse conveying mechanism 4 is close to the upper end of the inclined conveying mechanism 2, and the gripping mechanism 5 is located at the end of the transverse conveying mechanism 4. The transverse conveying mechanism 4 conveys paper tubes 3 to the end of the transverse conveying mechanism 4 in a horizontal direction; the gripping mechanism 5 grips the paper tubes 3 at the end of the transverse conveying mechanism 4 and grips the paper tubes 3 to the cradle mechanism 6; the cradle mechanism 6 is used to clamp the paper tubes 3 and cooperates with the winding mechanism 7 to realize the winding of yarn 11. The winding mechanism 7 is used for feeding yarn 11 and cooperates with the cradle mechanism 6 to realize the winding of yarn 11. The cradle mechanism 6 and the winding mechanism 7 are sequentially arranged below the gripping mechanism 5. The cradle mechanism 6 clamps the paper tube 3, and the winding mechanism 7 feeds the yarn 11 to the paper tube 3 under the cradle mechanism 6. The cradle mechanism 6 and the winding mechanism 7 cooperate to wind the yarn 11 onto the paper tube 3 clamped by the cradle mechanism 6. In addition, the main frame 8 is also equipped with an electrical cabinet 9 for installing the electrical components of the entire device. A noodle cylinder is placed below the winding mechanism 7 to hold the paper tube after winding.

[0038] like Figure 1As shown, the feeding mechanism includes a hopper 1 and an inclined conveying mechanism 2. The hopper 1 is generally bucket-shaped and contains empty paper tubes 3. The lower end of the inclined conveying mechanism 2 is inserted into the hopper 1 at an angle, and the upper end extends to the beginning of the transverse conveying mechanism 4. The inclined conveying mechanism 2 conveys the paper tubes 3 in the hopper 1 from bottom to top to the beginning of the transverse conveying mechanism 4. Specifically, the inclined conveying mechanism 2 includes an inclined support, an inclined belt 2.1, and a first motor 2.6. The inclined belt 2.1 is rotatably supported on the inclined support, and the first motor 2.6 drives the inclined belt 2.1 to rotate. The connection between the inclined belt 2.1 and the inclined support is feasible in existing technologies, including but not limited to structures using support rollers at both ends. The inclined belt 2.1 has several guide strips 2.2 evenly spaced on its surface to support the paper tubes 3. A side baffle 2.3 is provided on one side of the inclined support of the inclined belt 2.1. The side baffle 2.3 is L-shaped, inverted above the inclined belt 2.1, and has a structure that is narrower at the bottom and wider at the top. The end of the guide strip 2.2 away from the side baffle 2.3 has a downward-sloping bend for guiding the paper tubes 3 during screening, facilitating their fall under gravity. A top baffle 2.4 is provided on the inclined support at the upper end of the inclined belt 2.1. The top baffle 2.4 is connected to the inclined support via a baffle bracket 2.5. The baffle bracket 2.5 is U-shaped, and its height must ensure that the top baffle 2.4 is not higher than the axial height of one paper tube 3, facilitating the screening of vertical paper tubes 3. Paper tube 3 has a tapered structure with one end larger than the other. Therefore, when designing the feeding mechanism, a screening function in the direction of paper tube 3 was added.

[0039] like Figure 3 and Figure 4As shown, the transverse conveying mechanism 4 includes a transverse support, a transverse belt 4.1, and a second motor 4.2. The transverse belt 4.1 is rotatably supported on the transverse support, and the second motor 4.2 drives the transverse belt 4.1 to rotate. The second motor 4.2 is fixed to the transverse support by a motor bracket. A front paper tube guide plate 4.4 and a rear paper tube guide plate 4.5 are respectively provided on the transverse support on both sides of the transverse belt 4.1 in the conveying direction. The front paper tube guide plate 4.4 is located on one side of the inclined conveying mechanism 2, and a feed port 4.8 corresponding to the upper end of the inclined belt 2.1 is opened on the front paper tube guide plate 4.4 on the side of the feed port 4.8 in the conveying direction is provided with an outwardly folding guide part 4.9 to facilitate the adjustment of the conveying direction of the paper tube 3. The transverse support is also provided with a first proximity switch 4.6 and a second proximity switch 4.7. The first proximity switch 4.6 is located at the end of the transverse support and is used to detect whether there is a paper tube 3. The second proximity switch 4.7 is located at a position opposite to the end of the feed port 4.8 and is used to detect whether there is a paper tube 3. In this embodiment, both proximity switches are mounted on the rear paper tube guide plate 4.5. To prevent the paper tube 3 from falling from the inclined belt 2.1 onto the transverse belt 4.1 and then being ejected from one side of the rear paper tube guide plate 4.5 due to inertia, a transverse baffle 4.3 extending above its top edge is provided on the rear paper tube guide plate 4.5, and the position of the transverse baffle 4.3 is opposite to the feed inlet 4.8. To facilitate the gripping mechanism 5 and avoid interference between the paper tube clamping plate 5.5 and the guide plate, clearance openings 4.10 are provided on both the front paper tube guide plate 4.4 and the rear paper tube guide plate 4.5 near the end of the transverse belt 4.1.

[0040] like Figure 1 and Figure 5 As shown, the gripping mechanism 5 includes a gripping bracket 5.1, a rodless cylinder 5.2, a double-rod cylinder 5.3, a finger cylinder 5.4, and a paper tube clamping plate 5.5. The rodless cylinder 5.2 is horizontally fixed to the gripping bracket 5.1, and its movable body can move horizontally. The double-rod cylinder 5.3 is vertically arranged and fixed to the movable body of the rodless cylinder 5.2. The finger cylinder 5.4 is connected to the lower end of the push rod of the double-rod cylinder 5.3, and a paper tube clamping plate 5.5 is connected to each of the two fingers of the finger cylinder 5.4. Preferably, the paper tube clamping plate 5.5 is an arc shape matching the shape of the paper tube 3, and a clamping cavity for the paper tube is formed between the two paper tube clamping plates 5.5. To facilitate electrical wiring connections, a cable chain 5.6 is also included, which is located above the gripping bracket 5.1.

[0041] During the grasping process, the moving part of the rodless cylinder 5.2 moves to above the leftmost clearance opening 4.10. Then, the push rod of the double-rod cylinder 5.3 pushes down, causing the finger cylinder 5.4 and the paper tube clamp 5.5 to descend. At the same time as the descent, the finger cylinder 5.4 controls the paper tube clamp 5.5 to open, allowing the paper tube 3 at the end of the transverse belt 4.1 to enter the clamp. Then, the finger cylinder 5.4 controls the paper tube clamp 5.5 to clamp the paper tube 3. The push rod of the double-rod cylinder 5.3 retracts, causing the finger cylinder 5.4 and the paper tube 3 to rise. After rising to a suitable height, the moving part of the rodless cylinder 5.2 moves the double-rod cylinder 5.3, the finger cylinder 5.4, and the paper tube 3 together to the right and laterally move above the cradle mechanism 6. Then, the push rod of the double-rod cylinder 5.3 pushes downward, causing the paper tube 3 to descend between the left clamping plate 6.2 and the right clamping plate 6.3 of the cradle mechanism 6. Then, the left opening and closing cylinder 6.4 and the right opening and closing cylinder 6.5 drive the left clamping plate 6.2 and the right clamping plate 6.3 to move inward respectively, clamping the paper tube 3. Then, the finger cylinder 5.4 controls the paper tube clamping plate 5.5 to open, the push rod of the double-rod cylinder 5.3 lifts up, and the moving body of the rodless cylinder 5.2 returns to above the clearance opening 4.10, waiting for the next paper tube 3 to be gripped.

[0042] like Figure 6 and Figure 7As shown, the rocker arm mechanism 6 includes a support frame 6.11, a rocker arm 6.1, a left clamping plate 6.2, a right clamping plate 6.3, a clamping plate opening and closing drive cylinder, a lifting cylinder 6.6, a rocking arm 6.7, and a rocking shaft 6.8. The two ends of the rocking shaft 6.8 are rotatably connected to the support frame 6.11 via bearings 6.9. The rocking arm 6.7 has a connecting rod on its body, and a bushing on the connecting rod connects to the rocking shaft 6.8. The length of the connecting rod is approximately equal to the length of the rocking radius, i.e., the length of the rocking shaft. The distance from 6.8 to the rocker arm is specified. The rocker arm 6.7 is also equipped with a lifting rod, the end of which is connected to the push rod of the lifting cylinder 6.6. The cylinder body of the lifting cylinder 6.6 is hinged to the cylinder mounting plate 6.10, which is fixed to the support frame 6.11. The lifting cylinder 6.6 can be located above or below the rocker shaft 6.8, as long as it can drive the rocker shaft 6.8 to rotate, thereby causing the rocker arm to swing. Its position is not limited. In this embodiment, the lifting cylinder 6.6 is preferably located on the support frame 6.11 below the rocker shaft 6.8. The clamping plate opening and closing drive cylinder can be one or two. In this embodiment, two clamping plate opening and closing drive cylinders are used, namely a left opening and closing cylinder 6.4 and a right opening and closing cylinder 6.5. The rocker arm 6.1 has a U-shaped structure, with its bottom fixed to the body of the rocker arm 6.7. The two extension arms extend outward, and the ends are respectively fixed with the left opening and closing cylinder 6.4 and the right opening and closing cylinder 6.5. The actuating end of the left opening and closing cylinder 6.4 is connected to the left clamping plate 6.2, and the actuating end of the right opening and closing cylinder 6.5 is connected to the right clamping plate 6.3. The left clamping plate 6.2 and the right clamping plate 6.3 are arranged opposite to each other, forming a paper tube clamping space between them. The left clamping plate 6.2 and the right clamping plate 6.3 can move closer to each other or further away from each other under the drive of the left opening and closing cylinder 6.4 and the right opening and closing cylinder 6.5.

[0043] like Figure 7As shown, the winding mechanism 7 includes a grooved cylinder 7.1, a third motor 7.3, a rocker arm 7.4, a pen-shaped cylinder 7.6, a nozzle 7.5, a yarn guide rod 7.8, a yarn detector 7.9, a tensioner 7.10, and a support platform 7.13. The grooved cylinder 7.1 has shaft connections at both ends, which are rotatably connected to the main frame 8 via bearing seats 7.2. One side of the shaft connection is connected to the third motor 7.3, which drives the grooved cylinder. 7.1 Rotation: The support platform 7.13 is connected to the main frame 8 below the grooved cylinder 7.1. The lower end of the nozzle seat 7.7 is fixed on the support platform 7.13 and located at the lower front side of the grooved cylinder 7.1. The nozzle 7.5 is obliquely connected to the nozzle seat 7.7, with its upper end facing the grooved cylinder 7.1. The nozzle 7.5 is connected to compressed air to spray yarn 11. Since the yarn tail of yarn 11 needs to be clamped on the side of the paper tube 3 for easy retrieval in subsequent processes, compressed air is connected to the nozzle 7.5 to spray yarn 11 between the paper tube 3 and the clamping plate. Then, the clamping plate clamps the yarn tail on the side of the paper tube 3. This solution has the advantages of simple structure, low cost, small size, simple control, and short action time. The yarn guide rod 7.8, yarn detector 7.9, and tensioner 7.10 are sequentially arranged on the support platform 7.13 in front of the nozzle seat 7.7. The yarn guide rod 7.8 is used for yarn... The yarn 11 is guided and supported on the support platform 7.13 by the yarn guide rod bracket 7.14; the yarn detector 7.9 is used to detect the yarn 11, and automatically stops the machine and alarms when the yarn breaks; the tensioner 7.10 is used to control the tension of the yarn 11; the pen-shaped cylinder 7.6 is fixed on the main frame 8 on the front side of the groove cylinder 7.1, one end of the rocker arm 7.4 is rotatably connected to the actuating end of the pen-shaped cylinder 7.6, and the other end of the rocker arm 7.4 extends towards the groove cylinder 7.1 and is provided with a hook part at the end.

[0044] like Figure 8 As shown, to facilitate cutting the yarn, the winding mechanism also includes a yarn cutting assembly for cutting the yarn 11. The yarn cutting assembly is mounted on the main frame below the grooved cylinder 7.1. The yarn cutting assembly can be implemented in various ways; this embodiment provides one implementation to illustrate its function. The yarn cutting assembly includes scissors 7.11, a scissor support 7.15, and a cutting cylinder 7.12. The scissor support 7.15 is fixed to the main frame 8 below the grooved cylinder 7.1. The scissors 7.11 are connected to the scissor support 7.15. The handle of the scissors 7.11 is connected to the actuator of the cutting cylinder 7.12, which drives the scissors 7.11 to open and close, thus performing the cutting action.

[0045] An automatic yarn winding method, using the aforementioned automatic yarn winding machine, further includes the following steps:

[0046] S1: The worker pours empty paper tubes 3 into hopper 1. After starting the machine, the inclined conveyor 2 begins to lift the empty paper tubes 3 upward via the inclined belt 2.1. After being guided by the side guide plates, the paper tubes 3 in the wrong direction will be screened out by gravity and fall into hopper 1. The paper tubes 3 in the correct direction continue to move upward. The top baffle 2.4 will screen out the vertical paper tubes 3 and let them fall into hopper 1. Only the paper tubes 3 in the correct direction will be conveyed to the top and then fall onto the transverse belt 4.1 of the transverse conveyor 4. The transverse belt 4.1 is equipped with a front paper tube guide plate 4.4 and a rear paper tube guide plate 4.5 on both sides. The transverse conveyor 4 transports the paper tubes 3 to the set position, that is, the position of the gripping mechanism 5. Two proximity switches are installed along the length of the transverse belt 4.1. The first proximity switch 4.6 is located at the end of the transverse belt 4.1, and the second proximity switch 4.7 is located in the middle of the transverse belt 4.1. They can detect the arrangement of the paper tubes 3 being conveyed and whether they have reached the position of the gripping mechanism in real time.

[0047] S2: When a paper tube 3 is detected to have reached the gripping mechanism, the vertically arranged double-rod cylinder 5.3 drives the finger cylinder 5.4 to move downward to grip the paper tube 3. After the finger cylinder 5.4 clamps the paper tube, the double-rod cylinder 5.3 retracts upward, and the horizontally arranged rodless cylinder 5.2 drives it to move horizontally. After reaching the designated position, the lifting cylinder 6.6 of the cradle mechanism 6 controls the cradle 6.1 to lift. At the same time, the left opening and closing cylinder 6.4 and the right opening and closing cylinder 6.5 control the left clamping plate 6.2 and the right clamping plate 6.3 to open respectively, so that the paper tube 3 is located in the paper tube clamping space between the left clamping plate 6.2 and the right clamping plate 6.3.

[0048] S3: As Figure 9 As shown, the tail of yarn 11 passes sequentially through tensioner 7.10, yarn detector 7.9, yarn guide rod 7.8, and nozzle 7.5. Then, yarn 11 is ejected from nozzle 7.5 by compressed air to the inside of left clamping plate 6.2 and right clamping plate 6.3. At this time, the longitudinally arranged double-rod cylinder 5.3 lowers and places paper tube 3 at the designated position between left clamping plate 6.2 and right clamping plate 6.3. After paper tube 3 is in place, left opening and closing cylinder 6.4 and right opening and closing cylinder 6.5 retract, left clamping plate 6.2 and right clamping plate 6.3 clamp paper tube 3 and yarn 11, finger cylinder 5.4 releases, double-rod cylinder 5.3 retracts upward, and transverse rodless cylinder 5.2 drives it to move laterally back to the other end, ready to clamp the next paper tube 3.

[0049] S4: As Figure 10 As shown, the third motor 7.3 controls the rotation of the slotted drum 7.1. At this time, the lifting cylinder 6.6 controls the cradle 6.1 to descend, so that the empty paper tube 3 contacts the slotted drum 7.1. After the yarn 11 completes the specified tail-holding action, as shown... Figure 11 and Figure 12As shown, the pen-shaped cylinder 7.6 drives the rocker arm 7.4 to rotate, and the rocker arm 7.4 moves the yarn 11 to the winding point at the bottom of the grooved cylinder 7.1. At this time, the cutting angle α of the yarn 11 is preferably between 10° and 30°. The grooved cylinder 7.1 drives the yarn 11 to wind evenly on the paper tube 3. After completing the winding action of the specified length, the scissors 7.11 starts to cut the yarn 11. The rocker arm 7.4 rotates to the initial position, and the lifting cylinder 6.6 controls the rocker arm 6.1 to lift. At the same time, the left clamp 6.2 and the right clamp 6.3 open, and the paper tube with the finished winding falls into the bottom cotton sliver tube 10 for storage. This process is completed, and then the next cycle begins.

[0050] This invention solves the problem of manual or semi-automatic winding requiring worker operation, and the yarn 11 is wound evenly, which can effectively reduce the production cost of spinning mills and improve product production efficiency and quality.

[0051] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of the present invention. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An automatic yarn winding machine, characterized in that: The system includes a main frame, and a feeding mechanism, a conveying mechanism, a cradle mechanism, and a winding mechanism mounted on the main frame. The feeding mechanism includes a hopper and an inclined conveying mechanism, while the conveying mechanism includes a transverse conveying mechanism and a gripping mechanism. The hopper contains paper tubes. The lower end of the inclined conveying mechanism is inserted into the hopper at an angle, and the upper end extends to the beginning of the transverse conveying mechanism. The inclined conveying mechanism conveys the paper tubes from the hopper upwards to the beginning of the transverse conveying mechanism. The beginning of the transverse conveying mechanism is close to the upper end of the inclined conveying mechanism. The gripping mechanism is located at the end of the transverse conveying mechanism, and the transverse conveying mechanism conveys the paper tubes horizontally to its end. The gripping mechanism grips the paper tubes at the end of the transverse conveying mechanism and moves them to the cradle mechanism. The cradle mechanism and the winding mechanism are sequentially located below the gripping mechanism. The cradle mechanism clamps the paper tubes, and the winding mechanism conveys yarn to the paper tubes under the cradle mechanism. The cradle mechanism and the winding mechanism work together to wind the yarn onto the paper tubes clamped by the cradle mechanism. The winding mechanism includes a grooved cylinder, a third motor, a rocker arm, a pen-shaped cylinder, a nozzle, a yarn guide rod, a yarn detector, a tensioner, and a support platform. The grooved cylinder has shaft connections at both ends, which are rotatably connected to the main frame via bearing seats. One side of the shaft connection is connected to the third motor, which drives the grooved cylinder to rotate. The support platform is connected to the main frame below the grooved cylinder. The lower end of the nozzle seat is fixed to the support platform and located on the lower front side of the grooved cylinder. The nozzle is obliquely connected to the nozzle seat, with its upper end facing the grooved cylinder, and is connected to compressed air to eject yarn. The yarn guide rod, yarn detector, and tensioner are sequentially arranged on the support platform in front of the nozzle seat. The yarn guide rod guides the yarn, the yarn detector detects the yarn, and the tensioner controls the yarn tension. The pen-shaped cylinder is fixed to the main frame in front of the grooved cylinder. One end of the rocker arm is rotatably connected to the actuating end of the pen-shaped cylinder, and the other end of the rocker arm extends towards the grooved cylinder and has a hook portion at its end. The winding mechanism also includes a yarn cutting assembly for cutting the yarn, which is disposed on the main frame below the grooved drum.

2. The automatic yarn winding machine as described in claim 1, characterized in that: The inclined conveying mechanism includes an inclined support, an inclined belt, and a first motor. The inclined belt is rotatably supported on the inclined support, and the first motor drives the inclined belt to rotate. Several guide strips are evenly spaced on the surface of the inclined belt. A side baffle is provided on the inclined support on one side of the inclined belt, and a top baffle is provided on the inclined support at the upper end of the inclined belt. The top baffle is connected to the inclined support through a baffle bracket, and the height of the baffle bracket must ensure that the top baffle is not higher than the axial height of a paper tube.

3. The automatic yarn winding machine as described in claim 2, characterized in that: The side baffle is L-shaped and is upside down above the inclined belt, with a structure that is narrower at the bottom and wider at the top; the end of the guide bar away from the side baffle has a downwardly inclined bend for guiding the paper tube during screening.

4. The automatic yarn winding machine as described in claim 1, characterized in that: The transverse conveying mechanism includes a transverse support, a transverse belt, and a second motor. The transverse belt is rotatably supported on the transverse support, and the second motor drives the transverse belt to rotate. A front paper tube guide plate and a rear paper tube guide plate are respectively provided on the transverse support on both sides of the transverse belt conveying direction. The front paper tube guide plate is located on one side of the inclined conveying mechanism, and a feed port corresponding to the upper end of the inclined belt is opened on the front paper tube guide plate. A first proximity switch and a second proximity switch are also provided on the transverse support. The first proximity switch is located at the end of the transverse support and is used to detect whether there is a paper tube. The second proximity switch is located at a position opposite to the end of the feed port and is used to detect whether there is a paper tube.

5. The automatic yarn winding machine as described in claim 4, characterized in that: Above the rear paper tube guide plate, there is a transverse baffle that extends above its top edge, and the position of the transverse baffle is opposite to the feed inlet; both the front paper tube guide plate and the rear paper tube guide plate have clearance openings near the end of the transverse belt.

6. The automatic yarn winding machine as described in claim 1, characterized in that: The gripping mechanism includes a gripping bracket, a rodless cylinder, a double-rod cylinder, a finger cylinder, and a paper tube clamping plate. The rodless cylinder is horizontally fixed on the gripping bracket, and its movable body can move horizontally. The double-rod cylinder is vertically arranged and fixed to the movable body of the rodless cylinder. The finger cylinder is connected to the lower end of the push rod of the double-rod cylinder, and a paper tube clamping plate is connected to each of the two fingers of the finger cylinder. A paper tube clamping cavity is formed between the two paper tube clamping plates.

7. The automatic yarn winding machine as described in claim 1, characterized in that: The cradle mechanism includes a support frame, a cradle, a left clamp, a right clamp, a clamp opening and closing drive cylinder, a lifting cylinder, a rocking arm, and a rocking shaft. Both ends of the rocking shaft are rotatably connected to the support frame. One end of the rocking arm is connected to the rocking shaft. The lifting cylinder is located on one side of the rocking arm and connected to it, enabling the rocking arm to swing up and down around the rocking shaft. The cradle has a U-shaped structure, with its bottom fixed to the body of the rocking arm. Two extension arms extend outwards, with opposing left and right clamps at their ends, forming a paper tube clamping space between them. At least one of the left and right clamps is connected to a clamp opening and closing drive cylinder for driving the left and right clamps closer to or further apart.

8. An automatic yarn winding method, characterized in that: The automatic yarn winding machine as described in any one of claims 1-7 further includes the following steps: S1: The worker pours empty paper tubes into the hopper. After starting the machine, the inclined conveyor mechanism begins to lift the empty paper tubes upward via the inclined belt. After being guided by the side guide plates, the paper tubes in the wrong direction will be screened out by gravity and fall into the hopper. The paper tubes in the correct direction continue to move upward. The top baffle will screen out the vertical paper tubes and let them fall into the hopper. Only the paper tubes in the correct direction will be conveyed to the top and then fall onto the horizontal belt of the transverse conveyor mechanism. The transverse belt is equipped with front paper tube guide plates and rear paper tube guide plates on both sides. The transverse conveyor mechanism transports the paper tubes to the position of the gripping mechanism. At the same time, the arrangement of the conveyed paper tubes and whether they have reached the position of the gripping mechanism are detected in real time by proximity switches. S2: When a paper tube is detected to have reached the gripping mechanism, the vertically arranged double-rod cylinder drives the finger cylinder to move downward to grip the paper tube. After the finger cylinder clamps the paper tube, the double-rod cylinder retracts upward, and the horizontally arranged rodless cylinder drives it to move horizontally. After reaching the designated position, the lifting cylinder of the cradle mechanism controls the cradle to lift up. At the same time, the clamping plate opening and closing drive cylinder controls the left and right clamping plates to open, so that the paper tube is located in the paper tube clamping space between the left and right clamping plates. S3: The tail of the yarn passes through the tensioner, yarn detector, yarn guide rod, and nozzle in sequence. The end of the yarn is sprayed out from the nozzle by compressed air, so that the tail of the yarn is blown between the end of the paper tube and the clamping plate on one side. Then, the clamping plate opening and closing drive cylinder drives the clamping plate to clamp the paper tube and clamp the tail of the yarn between the paper tube and the clamping plate. The finger cylinder releases, the double rod cylinder retracts upward, and the horizontal rodless cylinder drives it to move laterally back to the other end, ready to clamp the next paper tube. S4: The third motor controls the rotation of the slotted drum. At this time, the lifting cylinder controls the rocker arm to descend, so that the empty paper tube contacts the slotted drum. After the yarn completes the specified tail-keeping action, the pen-shaped cylinder drives the rocker arm to rotate. The rocker arm moves the yarn to the winding point at the bottom of the slotted drum. The slotted drum drives the yarn to wind evenly on the paper tube. After completing the winding action of the specified length, the scissors start to cut the yarn. The rocker arm rotates to the initial position, the lifting cylinder controls the rocker arm to lift up, and at the same time the left and right clamps open. The paper tube with the yarn wound falls into the bottom cotton sliver tube for storage. This process is completed, and then the next cycle begins.

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