Cheese feeding and discharging device for circular knitting machine and control method of cheese feeding and discharging device

Abstract

The invention discloses a cheese feeding and discharging device for a circular knitting machine and a control method of the cheese feeding and discharging device, and belongs to the field of spinning equipment.The cheese feeding and discharging device comprises a creel body, a plurality of low-position material frames and a plurality of high-position material frames are arranged on the creel body in the height direction of the creel body, and a plurality of mounting rods are fixedly arranged on the low-position material frames and the high-position material frames; a rotating motor is fixedly arranged on the creel main body, the output end of the rotating motor is in transmission connection with the high-position material frame, a feeding mechanism is arranged on the creel main body, the feeding mechanism is movably connected with the creel main body through a lifting assembly, and the feeding mechanism comprises a base, a translation assembly and a plurality of material boxes; the horizontal moving assembly can promote the material box to move in the direction close to the mounting rod, a waste material box is arranged on the creel body in a sliding mode, and by arranging the feeding mechanism and the waste material box, an operator can complete waste material cleaning by controlling a rotating motor and complete feeding of a high-position material frame located at a high position through the feeding mechanism; and people can climb to a high place without tools such as ladders.

Description

Technical Field

[0001] This invention discloses a bobbin loading and unloading device and its control method for a circular knitting machine, belonging to the field of textile equipment. Background Technology

[0002] Circular knitting machine, also known as circular weft knitting machine, is characterized by its numerous loop-forming systems (referred to as yarn feed paths or loop-forming paths in enterprises, or simply paths), high speed, high output, rapid pattern changes, good fabric quality, fewer processes, and strong product adaptability.

[0003] When operating a circular knitting machine, the yarn used is packaged yarn. Before operation, the packaged yarn needs to be placed on the yarn rack, and then guided from the yarn rack into the circular knitting machine. In order to accommodate more packaged yarn, the yarn rack is designed with a multi-layer structure. This means that when operators load or unload materials (install new packaged yarn or remove used packaged yarn) on the higher layers of the yarn rack, they often need to use ladders or other tools because it is difficult to reach such heights. This not only poses a safety hazard but is also inefficient.

[0004] In response to the above problems, a new improvement plan is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a bobbin loading and unloading device and its control method for a large circular knitting machine in order to solve the above-mentioned problems.

[0006] This invention achieves the above objective through the following technical solution: a bobbin loading and unloading device for a circular knitting machine, comprising: The main body of the yarn rack is used to hold the yarn cones for production on the circular knitting machine; A low-position material rack is fixedly installed on the yarn frame body. Several low-position material racks are set along the height direction of the yarn frame body, and mounting rods are fixedly connected to the low-position material racks. A high-level material rack is rotatably mounted on the yarn frame body. Several high-level material racks are arranged along the height direction of the yarn frame body. All high-level material racks are located above the low-level material racks. Mounting rods are also fixedly connected to the high-level material racks. A rotating motor is fixedly mounted on the yarn frame body, and the output end of the rotating motor is connected to the high-position material rack for transmission. The feeding mechanism is used to load and unload the yarn package, and the feeding mechanism is movably connected to the yarn frame body; The lifting assembly is used to move the feeding mechanism on the yarn frame body; The feeding mechanism includes a base, a translation component, and several material boxes. The base is connected to the lifting component, and the material boxes are slidably connected to the base. The translation component can cause the material boxes to move towards the mounting rod. A waste box is slidably disposed on the yarn frame body. A sliding component is disposed on the yarn frame body, which can cause the waste box to slide on the yarn frame body. The rotating motor can drive the high-position material rack to rotate and cause the mounting rod to move towards the waste box. A controller is fixedly disposed on the yarn frame body. The controller is electrically connected to the rotating motor, the lifting component, the translation component, and the sliding component.

[0007] Preferably, the material box includes a placement component and a limiting component. The placement component is slidably connected to the base and is drivenly connected to the translation component. A slider is fixedly connected to the limiting component. A sliding groove is provided on the placement component, and the slider slides in the sliding groove. An clearance groove is provided on the placement component, and the clearance groove allows the installation rod to pass through.

[0008] Preferably, a positioning rod is fixedly connected to the limiting member, and the end of the positioning rod is chamfered.

[0009] Preferably, the translation component includes a first motor, a first lead screw, and a first transmission component. The first motor is fixedly connected to the base and electrically connected to the controller. One end of the first lead screw is rotatably connected to the base, and the other end of the first lead screw is drively connected to the first motor. The first transmission component is fixedly connected to all the placement components and forms a lead screw drive with the first lead screw.

[0010] Preferably, the lifting assembly includes a second motor, a second lead screw, and a second transmission component. The second motor is fixedly connected to the yarn frame body and electrically connected to the controller. The second transmission component is fixedly connected to the base. One end of the second lead screw is rotatably connected to the yarn frame body, and the other end of the second lead screw is drively connected to the second motor. The second lead screw passes through the base and forms a lead screw drive with the second transmission component.

[0011] Preferably, the sliding assembly includes a third motor, a third lead screw, and a third transmission component. The third motor is fixedly connected to the yarn frame body and electrically connected to the controller. The third transmission component is fixedly connected to the waste box. One end of the third lead screw is rotatably connected to the yarn frame body, and the other end of the third lead screw is drively connected to the third motor. The third lead screw passes through the waste box and forms a lead screw drive with the third transmission component.

[0012] Preferably, a soft pad is fixedly connected inside the waste box.

[0013] A control method for a bobbin loading and unloading device for a circular knitting machine includes the following steps: Step 1: When the yarn on the high-level material rack at the top of the yarn frame is used up, the operator uses the controller to control the sliding component to move the waste material box to the bottom of the high-level material rack. Step 2: Use the controller to control the rotating motor, so that it drives the high-position material rack to rotate until the mounting rod faces the waste box. At this time, the mounting rod is at a downward tilt angle. The used yarn packages slide off the mounting rod into the waste box under the action of gravity to complete the unloading. Step 3: Use the controller to operate the lifting component to lower the feeding mechanism to the lowest position for easy use by the operator. Then, the operator puts new yarn bobbins into the material box. Step 4: Use the controller to operate the lifting assembly to raise the feeding mechanism to the high-position material rack where the yarn in Step 1 has been used up; Step 5: Use the controller to operate the rotating motor, so that it drives the high-position material rack to rotate toward the material box; Step 6: Use the controller to operate the translation component, so that it moves the material box towards the mounting rod, thereby loading the yarn on the material box onto the mounting rod to complete the feeding. Step 7: Use the controller to operate the rotating motor to rotate the high-level material rack after loading to a certain angle and raise it. Then operate the lifting component to lower the loading mechanism to a lower position for easy loading next time.

[0014] Compared with the prior art, the beneficial effects of the present invention are: By setting the high-level material rack at a height to be rotatable and setting a waste box that can move up and down, when the yarn on a material rack is used up, the rotation motor can be started to make the high-level material rack rotate, so that it tilts downward and toward the waste box, so that the used yarn slides from the mounting rod into the waste box to complete the unloading.

[0015] By setting up a feeding mechanism that includes a base, a material box, and a translation component, when installing new yarn packages, the new yarn packages are placed in the material box, and the feeding mechanism is raised to the required installation height using the lifting component. Then, the translation component is activated, causing the material box to move towards the installation rod, thereby placing the new yarn packages onto the installation rod to complete the feeding. This eliminates the need for workers to climb to high places, improving safety. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the front structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention from another perspective; Figure 3 For the present invention Figure 1 Schematic diagram of the cross-sectional structure along the middle AA direction; Figure 4This is a schematic diagram of the structure of the present invention when the mounting rod is facing the waste box; Figure 5 This is a schematic diagram of the feeding mechanism of the present invention in the feeding state; Figure 6 This is an exploded structural diagram of the feeding mechanism of the present invention.

[0017] Reference numerals in the attached drawings: 1. Main body of the yarn frame; 2. Low-position material rack; 3. High-position material rack; 4. Mounting rod; 5. Rotating motor; 6. Base; 7. Material box; 71. Placement component; 72. Limiting component; 73. Sliding block; 74. Slide groove; 75. Clearance groove; 76. Positioning rod; 8. Waste box; 9. Controller; 10. First motor; 11. First lead screw; 12. First transmission component; 13. Second motor; 14. Second lead screw; 15. Second transmission component; 16. Third motor; 17. Third lead screw; 18. Third transmission component; 19. Soft pad. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. In this description, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figure 1 , Figure 2 and Figure 3 As shown, a bobbin loading and unloading device for a large circular knitting machine includes: Yarn frame body 1, used to hold yarn cones for production on the circular knitting machine; The low-position material rack 2 is fixedly installed on the yarn frame body 1. Several low-position material racks 2 are set along the height direction of the yarn frame body 1. An installation rod 4 is fixedly connected to the low-position material rack 2. The low-position material rack 2 is located at a lower position in the vertical direction and can be directly reached by the operator. The high-level material rack 3 is rotatably mounted on the yarn frame body 1. Several high-level material racks 3 are set along the height direction of the yarn frame body 1. All high-level material racks 3 are located above the low-level material racks 2. Mounting rods 4 are also fixedly connected to the high-level material racks 3. The high-level material racks 3 are located at a high position in the vertical direction, which is difficult for operators to reach. During the operation, the yarn package is sleeved on the mounting rods 4. The yarn is guided to the corresponding equipment through the yarn package. After being pulled by the equipment, the yarn package will continuously rotate on the mounting rods 4 to release the yarn. The rotating motor 5 is fixedly mounted on the yarn frame body 1, and the output end of the rotating motor 5 is connected to the high-position material rack 3 for transmission. The feeding mechanism is used to load and unload the yarn package, and the feeding mechanism is movably connected to the yarn frame body 1; The lifting assembly is used to cause the feeding mechanism to move on the yarn frame body 1; The feeding mechanism includes a base 6, a translation component, and several material boxes 7. The base 6 is connected to the lifting component, and the material boxes 7 are slidably connected to the base 6. The translation component can cause the material boxes 7 to move towards the mounting rod 4. A waste box 8 is slidably arranged on the yarn frame body 1. A sliding component is arranged on the yarn frame body 1. The sliding component can cause the waste box 8 to slide on the yarn frame body 1. The rotating motor 5 can drive the high-position material rack 3 to rotate and cause the mounting rod 4 to face the waste box 8. A controller 9 is fixedly arranged on the yarn frame body 1. The controller 9 is electrically connected to the rotating motor 5, the lifting component, the translation component, and the sliding component. The controller 9 of this product includes a control box, an operation panel, a processor, and a signal terminal. The operation panel is fixedly arranged on the control box. A main board is arranged between the operation panel, the processor, and the signal terminal to form a signal communication between them. The rotating motor 5, the lifting component, the translation component, and the sliding component are controlled by corresponding sensors. When using this product, the feeding mechanism and waste box 8 are initially positioned at the lower part of the yarn frame body 1 for easy access by operators. When the yarn on the high-level material rack 3 is used up, the paper tubes used for winding the yarn will remain on the mounting rod 4. At this time, the controller 9 can control the sliding component to move the waste box 8 below the corresponding high-level material rack 3. Then, the rotating motor 5 is controlled to drive the high-level material rack 3 to rotate, causing the mounting rod 4 of the high-level material rack 3 to point towards the waste box 8 and tilt downwards. Under the action of gravity, the paper tubes slide off the mounting rod 4, thus achieving the effect of automatic feeding. Without the need for personnel to climb to a high place for replacement, after the waste material is cleaned up, the operator can put the new yarn package into the material box 7, and then temporarily fix the yarn end on the new yarn package at a low position, or tie it to the end of the yarn used in the previous batch. Then, the lifting component is used to move the feeding mechanism to the position of the high-level material rack 3, and then the rotation motor 5 is controlled to rotate the high-level material rack 3 to the position where the mounting rod 4 faces the material box 7. Then, the translation component is used to move the material box 7 towards the mounting rod 4, so that the yarn package on the material box 7 can be fitted onto the mounting rod 4 to achieve the purpose of feeding, without the need for the operator to climb to a high place for feeding.

[0020] like Figure 4 , Figure 5 and Figure 6As shown, the material box 7 includes a placement component 71 and a limiting component 72. The placement component 71 is slidably connected to the base 6 and is drivenly connected to the translation component. A slider 73 is fixedly connected to the limiting component 72. A groove 74 is provided on the placement component 71, and the slider 73 slides in the groove 74. An clearance groove 75 is provided on the placement component 71, which allows the mounting rod 4 to pass through. When using the material box 7, the limiting component 72 is pulled open, a new yarn package is placed in it, and then the limiting component 72 is pushed in to press down one side of the yarn package. Furthermore, a positioning rod 76 is fixedly connected to the limiting member 72. The end of the positioning rod 76 is chamfered. Since the yarn package is formed by winding yarn around a paper tube, the positioning rod 76 on the limiting member 72 can be inserted into the paper tube to form a positioning, thereby positioning the yarn package and preventing it from moving. At this time, under the positioning action of the positioning rod 76, the paper tube of the yarn package is located in the clearance groove 75 of the placement member 71 to facilitate the insertion of the installation rod 4. After the yarn package is placed, the lifting assembly can be activated by the controller 9. The base 6 is raised to the position of the corresponding high-level material rack 3. Then, the controller 9 controls the rotating motor 5 to rotate the corresponding high-level material rack 3 to the angle where the mounting rod 4 faces the material box 7. At this time, the controller 9 is used to start the translation component to move the material box 7. During the movement of the material box 7, the mounting rod 4 first passes through the clearance groove 75 on the placement part 71 and then inserts into the paper tube of the yarn package. As the material box 7 continues to move, the end of the mounting rod 4 will abut the end of the positioning rod 76. Since the limiting part 72 is slidably connected to the placement part 71, the mounting rod 4 will push the positioning rod 76 out of the yarn package as the material box 7 moves, thereby releasing the positioning effect of the positioning rod 76 on the yarn package. At this time, the lifting component is controlled to descend, so that the feeding mechanism leaves the high-level material rack 3 and leaves the yarn package on the high-level material rack 3, thus completing the feeding. After the feeding is completed, the rotating motor 5 can be controlled to rotate the high-level material rack 3 at a certain angle to raise it and prevent the yarn package on the mounting rod 4 from falling off.

[0021] like Figures 2-6As shown, the translation component of this product includes a first motor 10, a first lead screw 11, and a first transmission component 12. The first motor 10 is fixedly connected to the base 6 and electrically connected to the controller 9. One end of the first lead screw 11 is rotatably connected to the base 6, and the other end of the first lead screw 11 is drive-connected to the first motor 10. The first transmission component 12 is fixedly connected to all the placement components 71 and forms a lead screw drive with the first lead screw 11. When the first motor 10 is started, the first motor 10 will drive the first lead screw 11 to rotate. Since the first lead screw 11 and the first transmission component 12 are driven by a lead screw, when the first lead screw 11 rotates, it will drive the first transmission component 12 to move linearly. Lead screw drive is a mature technology and will not be elaborated here. Since the first transmission component 12 is fixedly connected to all the placement components 71, when the first transmission component 12 moves linearly, it will drive the placement components 71 to move linearly, which can achieve the effect of moving closer to or further away from the mounting rod 4.

[0022] The lifting assembly of this product includes a second motor 13, a second lead screw 14, and a second transmission component 15. The second motor 13 is fixedly connected to the yarn frame body 1 and electrically connected to the controller 9. The second transmission component 15 is fixedly connected to the base 6. One end of the second lead screw 14 is rotatably connected to the yarn frame body 1, and the other end of the second lead screw 14 is drively connected to the second motor 13. The second lead screw 14 passes through the base 6 and forms a lead screw drive with the second transmission component 15. When using the lifting assembly to control the rising and falling of the feeding mechanism, the controller 9 controls the second motor 13. When the second motor 13 is working, it outputs rotational motion and drives the second lead screw 14 to rotate. The second transmission component 15 forms a screw drive, so the second transmission component 15 can move linearly under the rotational motion of the second screw 14. That is, the second transmission component 15 drives the base 6 to move linearly, which achieves the effect of raising and lowering the base 6. Furthermore, the moving distance of the base 6, or where the base 6 is in the height direction of the yarn frame body 1 after moving a certain distance, can be obtained by embedding corresponding software in the controller 9 or by adding corresponding sensors to the base 6. The user can accurately move the base 6 to the material box 7 to align with the position of the mounting rod 4 based on this data, so as to ensure that the mounting rod 4 can be smoothly inserted into the new yarn package.

[0023] The sliding assembly of this product includes a third motor 16, a third lead screw 17, and a third transmission component 18. The third motor 16 is fixedly connected to the yarn frame body 1 and electrically connected to the controller 9. The third transmission component 18 is fixedly connected to the waste box 8. One end of the third lead screw 17 is rotatably connected to the yarn frame body 1, and the other end of the third lead screw 17 is drive-connected to the third motor 16. The third lead screw 17 passes through the waste box 8 and forms a lead screw drive with the third transmission component 18. Similarly, after the controller 9 starts the third motor 16, the third lead screw 17 begins to rotate under the drive of the third motor 16, and the third transmission component 18, which performs the lead screw drive with it, rotates along the third lead screw 17. Driven by the linear motion, the waste box 8 slides and rises and falls on the main body of the material rack. Similarly, a sensor can be added to the waste box 8, or corresponding software can be embedded in the controller 9 to clearly know where the waste box 8 is moving, so as to ensure that the waste box 8 can stop below the high material rack 3 when the yarn is used up, so as to catch the paper tubes sliding down from the high material rack 3. In addition, a soft pad 19 is fixedly connected inside the waste box 8. The soft pad 19 can be a pad filled with cotton or a sponge pad. When the paper tube falls into the waste box 8 under the action of gravity, the soft pad 19 can absorb its impact and prevent it from rebounding and falling out of the waste box 8.

[0024] This product also includes a control method for a bobbin loading and unloading device for a circular knitting machine, comprising the following steps: Step 1: When the yarn on the high-position material rack 3 at the top of the yarn frame 1 is used up, the operator uses the controller 9 to control the sliding component to move the waste box 8 below the high-position material rack 3. In this step, the position data can be obtained by embedding relevant software in the controller 9, such as reading the speed of the third motor 16 and calculating the distance moved based on the number of revolutions of the third lead screw 17 driven by the motor, or by adding corresponding sensors to the waste box 8 to obtain position data to ensure the accuracy of the movement position. Step 2: Use controller 9 to control the rotating motor 5, so that it drives the high-position material rack 3 to rotate until the mounting rod 4 faces the waste box 8. At this time, the mounting rod 4 is at a downward tilt angle. The used yarn packages slide from the mounting rod 4 into the waste box 8 under the action of gravity to complete the unloading. In this step, the angle at which the rotating motor 5 drives the high-position material rack 3 to rotate can be obtained by reading the angle of rotation of the rotating motor 5 through controller 9. Step 3: Use controller 9 to operate the lifting component to lower the feeding mechanism to the lowest position for easy use by the operator. Then the operator puts new yarn bobbins into the material box 7. Step 4: Use controller 9 to operate the lifting assembly to raise the feeding mechanism to the high-position material rack 3 where the yarn bobbins were used up in step 1. In steps 3 and 4, the moving distance can be calculated by reading the number of rotations of the second motor 13 driving the second lead screw 14 by embedding the corresponding software and hardware in controller 9, or by adding corresponding sensors on the base 6 to acquire data, thereby achieving the effect of accurately moving the feeding mechanism. Step 5: Use controller 9 to operate the rotating motor 5, so that it drives the high-position material rack 3 to rotate toward the material box 7; Step 6: Use controller 9 to operate the translation component, so that it moves the material box 7 toward the mounting rod 4, thereby loading the yarn on the material box 7 onto the mounting rod 4. Step 7: Use controller 9 to operate motor 5 to rotate the high-level material rack 3 after loading is completed and raise it to a certain angle. Then operate the lifting component to lower the loading mechanism to a lower position for easy loading next time.

[0025] Working principle: In the initial state, the feeding mechanism is located at the bottom of the yarn frame body 1, at the low-level material rack 2 of the yarn frame body 1. Operators can directly install the yarn packages manually. When installing the yarn packages on the high-level material rack 3, the yarn packages are placed on the placement part 71 of the material box 7. Then, the positioning rod 76 on the limiting part 72 provides a certain limit to the yarn packages. Next, the controller 9 controls the lifting component to raise the feeding mechanism to the high-level material rack 3 where the yarn packages need to be installed. Then, the controller 9 controls the high-level material rack 3 to rotate so that the installation rod 4 faces the material box 7. Finally, the controller 9 controls the translation component. The material box 7 is moved closer to the mounting rod 4, so that the mounting rod 4 is inserted into the paper tube of the yarn package and the limiting member 72 is pushed out. Then, the lifting component is controlled to lower the feeding mechanism to leave the yarn package on the high-level material rack 3 and put the next batch of yarn package into the feeding mechanism. When the yarn package on the high-level material rack 3 is used up, the sliding component is controlled to move the waste box 8 below it. Then, the rotating motor 5 is controlled to drive the high-level material rack 3 to rotate, so that the mounting rod 4 faces the waste box 8 and is tilted downwards, so that the paper tube of the yarn package slides down into the waste box 8 under the action of gravity, thus completing the unloading.

[0026] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bobbin loading and unloading device for a drum machine, characterized in that, The utility model provides a yarn frame, including: Yarn frame body for placing the cheese for the production of circular knitting machine; Low position rack fixedly arranged on the yarn frame body, the low position rack is arranged as a plurality of along the height direction of the yarn frame body, the low position rack is fixedly connected with the installation rod; High position rack rotatably arranged on the yarn frame body, the high position rack is arranged as a plurality of along the height direction of the yarn frame body, the high position rack is located above the low position rack, the high position rack is also fixedly connected with the installation rod; Rotary motor fixedly arranged on the yarn frame body, the output end of rotary motor is drivingly connected with the high position rack; Feeding mechanism for feeding and discharging the cheese, the feeding mechanism is movably connected with the yarn frame body; Lifting assembly for moving the feeding mechanism on the yarn frame body; Wherein, the feeding mechanism includes base, translation assembly and a plurality of material boxes, the base is drivingly connected with the lifting assembly, the material box is slidingly connected with the base, the translation assembly can move the material box to the direction close to the installation rod, the waste box is slidingly arranged on the yarn frame body, the sliding assembly is arranged on the yarn frame body, the sliding assembly can slide the waste box on the yarn frame body, the rotary motor can drive the high position rack to rotate and make the installation rod towards the waste box, the controller is fixedly arranged on the yarn frame body, the controller is electrically connected with the rotary motor, the lifting assembly, the translation assembly and the sliding assembly.

2. The cheese loading and unloading device for a drum machine according to claim 1, characterized in that: The material box includes placing part and limiting part, the placing part is slidingly connected with the base and drivingly connected with the translation assembly, the limiting part is fixedly connected with the sliding block, the placing part is provided with the sliding slot, the sliding block slides in the sliding slot, the placing part is provided with the avoiding slot, and the avoiding slot allows the installation rod to pass through.

3. The cheese loading and unloading device for a drum machine according to claim 2, characterized in that: The limiting part is fixedly connected with the positioning rod, and the end of the positioning rod is formed with a chamfer.

4. The cheese loading and unloading device for a drum machine according to claim 3, characterized in that: The translation assembly includes a first motor, a first screw rod and a first transmission part, the first motor is fixedly connected with the base and electrically connected with the controller, one end of the first screw rod is rotatably connected with the base, the other end of the first screw rod is drivingly connected with the first motor, and the first transmission part is fixedly connected with all placing parts and forms screw rod transmission with the first screw rod.

5. The cheese loading and unloading device for a drum machine according to claim 1, characterized in that: The lifting assembly includes a second motor, a second screw rod and a second transmission part, the second motor is fixedly connected with the yarn frame body and electrically connected with the controller, the second transmission part is fixedly connected with the base, one end of the second screw rod is rotatably connected with the yarn frame body, the other end of the second screw rod is drivingly connected with the second motor, the second screw rod penetrates through the base and forms screw rod transmission with the second transmission part.

6. The cheese loading and unloading device for a drum machine according to claim 1, characterized in that: The sliding assembly includes a third motor, a third screw rod and a third transmission part, the third motor is fixedly connected with the yarn frame body and electrically connected with the controller, the third transmission part is fixedly connected with the waste box, one end of the third screw rod is rotatably connected with the yarn frame body, the other end of the third screw rod is drivingly connected with the third motor, the third screw rod penetrates through the waste box and forms screw rod transmission with the third transmission part.

7. The cheese loading and unloading device for a drum machine according to claim 6, characterized in that: The waste box is fixedly connected with the soft pad.

8. A method for controlling a bobbin loading and unloading device for a circular knitting machine, for controlling a bobbin loading and unloading device for a circular knitting machine according to any one of claims 1 to 7, characterized in that: The utility model provides a yarn frame, including: The following steps are included: Step one, when the bobbin on the high position rack at the high position of the creel body is used up, the operator controls the sliding assembly to drive the waste box to move below the high position rack; Step two, the operator controls the rotating motor to drive the high position rack to rotate to the direction of the waste box, at this time the installation rod is in the downward inclined angle, the used bobbin slides from the installation rod to the waste box under the action of gravity to complete the discharging; Step three, the operator controls the lifting assembly to make the feeding mechanism descend to the low position to facilitate the operator to use, and then the operator puts the new bobbin into the material box; Step four, the operator controls the lifting assembly to make the feeding mechanism ascend to the high position rack where the bobbin is used up in step one; Step five, the operator controls the rotating motor to drive the high position rack to rotate to the direction of the material box; Step six, the operator controls the translation assembly to drive the material box to move to the direction close to the installation rod, so that the bobbin on the material box is sleeved on the installation rod to complete the feeding; Step seven, the operator controls the rotating motor to make the high position rack where the feeding is completed rotate to the lifting state, and then controls the lifting assembly to make the feeding mechanism descend to the low position to facilitate the next feeding.

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