Diameter-adjustable yarn bobbin and fluffy yarn device

Abstract

The invention discloses a diameter-adjustable yarn bobbin and a fluffy yarn device, which belongs to the field of textiles and comprises a yarn bobbin mechanism with adjustable diameter, a pressing die mechanism, a fluffy yarn mechanism and a working frame; a surface of the working frame is provided with a T-shaped notch, and the reverse sides of the working frame surfaces on both sides of the T-shaped notch are downwardly connected to a bottom plate through supporting rods, and a first driving part is provided on the reverse side of the bottom plate; the yarn bobbin mechanism comprises an outer cylinder with multiple slide grooves provided at the upper and lower ends, an inner cylinder which can be vertically moved is provided in the outer cylinder, and a plurality of yarn bobbin outer petals are provided on the outer periphery of the outer cylinder, the yarn bobbin outer petals are movably connected to the outer cylinder, and the first driving part drives the inner cylinder to move up and down so that a scissor mechanism telescopically moves the yarn bobbin outer petals; the top end of the outer cylinder is fixed by a pressing die mechanism; the fluffy yarn mechanism is provided with an adjustable and rotatable rotating cylinder, and the rotating cylinder rotates to loosen the yarn roll of the yarn bobbin mechanism. The diameter of the yarn bobbin mechanism in the device can be freely adjusted, and the yarn roll can be evenly dispersed in conjunction with the fluffy yarn mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of textiles, and in particular to a diameter-adjustable yarn bobbin and a fluffy yarn device. Background Art

[0002] Textile bobbins are essential components in the textile industry, but traditional bobbins have the following drawbacks: The diameter of the bobbin is constant and cannot be adjusted. Once the yarn is wound onto the bobbin, it becomes very tight due to the high tension. Direct dyeing hinders dye penetration, significantly impacting the dyeing effect. Therefore, before dyeing, the larger bobbin must be replaced with a smaller, hollowed-out bobbin to reduce yarn tension and create greater fluff. This process is not only complex, time-consuming, and inefficient, but also results in inconsistent yarn bulk after bobbin replacement, leading to uneven dyeing (color differences between the inner and outer yarns, resulting in poor dye penetration).

[0003] In addition to traditional manual bobbin replacement, patent publication number CN114229095A provides an integrated device for automatically replacing yarn bobbins, cores, and socks. However, this device occupies a large space, is complex, and requires two different cores for each use, which is costly. After replacing a new core, the cotton yarn cannot be guaranteed to have the same fluffiness on the new core, which can lead to poor dyeing results in the next step. Summary of the Invention

[0004] The purpose of the present invention is to provide a diameter-adjustable yarn bobbin and a fluffy yarn device to solve the defects in the prior art that the diameter of the textile yarn bobbin is fixed and cannot be adjusted, and mechanical replacement of the bobbin core cannot ensure that the cotton yarn wrapped on the new bobbin has a consistent fluffy degree.

[0005] To achieve the above object, the present invention is implemented by adopting the following technical solutions: a diameter-adjustable bobbin and fluffy yarn device, comprising a diameter-adjustable bobbin mechanism, a die mechanism, a fluffy yarn mechanism, and a working frame;

[0006] The surface of the work frame is provided with a T-shaped notch, and the reverse side of the work frame table on both sides of the T-shaped notch is connected downwardly to a bottom plate through a support rod, and the reverse side of the bottom plate is provided with a first driving part;

[0007] The yarn drum mechanism includes an outer cylinder with multiple sliding grooves provided on the upper and lower parts, an inner cylinder which can move vertically is provided in the outer cylinder, and a plurality of yarn drum outer petals are provided on the outer circumference of the outer cylinder, the outer cylinder and the inner cylinder are movably connected with the yarn drum outer petals through multiple scissor mechanisms, the bottom of the inner cylinder is rotatably connected to a first screw, a limiting nut is fitted on the first screw, and the limiting nut is fixed to the inner wall of the outer cylinder, one end of the outer cylinder is inserted into the yarn drum fixing seat on the bottom plate, and the first screw is inserted into the first driving part, and the first driving part drives the inner cylinder to move up and down, so that the scissor mechanism telescopically moves the yarn drum outer petals;

[0008] The die pressing mechanism is mounted on the workbench table, and the die pressing mechanism includes a cylinder mounted on the workbench table, and the piston rod of the cylinder is movably connected to the die pressing cover through a connecting rod structure, and the cylinder drives the connecting rod structure to move so that the die pressing cover presses down the top end of the outer cylinder;

[0009] The fluffy yarn mechanism comprises a rotating cylinder which is arranged on the bottom plates on both sides of the yarn drum mechanism and can be translated and rotated. The rotating cylinder rotates to loosen the yarn roll of the yarn drum mechanism.

[0010] The first driving part includes a motor and a second screw placed in a bobbin fixing seat. The motor is fixed to the back of the base plate through a motor mounting frame, and the motor output shaft passes through the motor mounting frame and is fixedly connected to a driving wheel. One end of the second screw is provided with a hexagonal convex body, and the other end spirally passes through the bottom of the bobbin fixing seat and is connected to a driven wheel. The driven wheel and the driving wheel are connected by a belt. A hexagonal groove is provided at the bottom of the first screw, and the hexagonal convex body is placed in the hexagonal groove.

[0011] The scissor mechanism includes a first hinge rod and a second hinge rod;

[0012] The No. 1 hinge rod is rotatably connected to the middle part of the No. 2 hinge rod. The No. 1 hinge rod is placed in the corresponding slide groove and rotatably connected to the inner cylinder, and the other end is correspondingly and movably connected to the outer petal of the yarn tube. One end of the No. 2 hinge rod is rotatably connected to the outer cylinder, and the other end is also correspondingly and movably connected to the outer petal of the yarn tube.

[0013] The upper and lower ends of the outer petals of the yarn cylinder facing the outer cylinder are fixed with convex plates with square grooves, and the other ends of the second hinge rod and the first hinge rod are movably connected to the square grooves through a rotating shaft.

[0014] The inner cylinder is adjustable in length and includes a first inner cylinder with a threaded inner wall and a second inner cylinder with a threaded inner wall. The inner walls of the adjacent ends of the first inner cylinder and the second inner cylinder are connected by a screw connector. The distance between the first inner cylinder and the second inner cylinder is adjusted by rotating the first inner cylinder and the second inner cylinder. The hinge rod No. 1 in the scissors mechanism is rotatably connected to the first inner cylinder or the second inner cylinder.

[0015] The connecting rod structure includes a connecting rod base, which is supported on the table of the workbench through a fixed column. Two groups of connecting seats are provided on the connecting rod base, and an intermediate connecting rod is provided between the two groups of connecting seats. A short connecting rod is rotatably connected to one connecting seat, and a head connecting rod is fixed at one end of the rotating shaft of this connecting seat. The tail connecting rod is rotatably connected to the other connecting seat. The intermediate connecting rod is rotatably connected to the tail connecting rod and the short connecting rod in turn. The tail connecting rod is vertically installed with a die cover through a die rod, and the end of the piston rod of the cylinder is rotatably connected to the head connecting rod.

[0016] A long through hole is provided on the bottom plate of the bottom of each rotating cylinder, and a middle bottom plate is vertically extended upward on the front and rear sides of the long through hole, a pair of support plates are extended upward on the left and right sides of the T-shaped notch, an upper side plate is connected between the left and right side plates of each pair of support plates, and a second adjusting screw is threaded through the upper side plate on the side away from the bobbin mechanism, and one end of the second adjusting screw is rotatably connected to the upper baffle plate between the two upper side plates, and the rotating shaft at one end of the rotating cylinder is rotatably connected to the upper baffle plate;

[0017] The left and right sides of the bottom plate are provided with lower side plates, and the lower side plates are threaded with a first adjusting screw, and the first adjusting screw is rotatably connected to a Z-shaped baffle at one end close to the yarn bobbin mechanism, and a small motor is installed at the bottom of the Z-shaped baffle, and the output shaft of the small motor passes through the Z-shaped baffle and is connected to the rotating shaft at the other end of the rotating cylinder through a coupling.

[0018] A spring is connected between the upper baffle and the upper side plate facing the bobbin mechanism;

[0019] A mounting plate is fixed between one end of each pair of the middle bottom plates close to the bobbin mechanism, a tension-compression force sensor is fixed on the mounting plate, and a spring is also connected between the tension-compression force sensor and the Z-shaped baffle.

[0020] According to the above technical solution, the embodiments of the present invention have at least the following effects:

[0021] 1. The present invention overcomes the drawback of the traditional yarn bobbin diameter that cannot be changed. The motor is started to control the up and down movement of the inner tube. At this time, the two ends of the scissor mechanism move away from or towards each other to control the retraction and expansion of the outer petals of the yarn tube. The overall diameter of the yarn tube mechanism can be adjusted quickly and stably, eliminating the inefficiency caused by frequent replacement of yarn tubes of different diameters during textile operations.

[0022] 2. The length of the inner cylinder in the yarn drum mechanism is also adjustable. By rotating the first inner cylinder and the second inner cylinder relative to each other, the distance between the first inner cylinder and the second inner cylinder can be controlled to achieve length adjustment of the inner cylinder. The outer petals of the yarn drum with appropriate lengths can be matched to wind yarn rolls of different lengths and specifications, which can enhance the practical performance of the device and further strengthen the versatility of the device.

[0023] 3. The present invention also adds a fluffy yarn mechanism, in which the rotatable rotating cylinder inside continuously rubs and hits the yarn roll wrapped on the outer petal of the yarn tube, which can quickly fluff up the tight yarn roll, so that the fluffiness inside and outside the yarn roll remains similar, avoiding uneven dyeing in the later stage.

[0024] 4. The first and second adjusting screws are installed on the upper and lower side plates of the rotating cylinder. Synchronously rotating the first and second adjusting screws can change the distance between the rotating cylinder and the yarn drum mechanism, which can adapt to the fluffing operation of yarn rolls of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 is a side view of the present invention;

[0027] Figure 3 This is a schematic diagram of the installation part of the fluffy yarn mechanism;

[0028] Figure 4 for Figure 3 Front view;

[0029] Figure 5 for Figure 4 Cross-sectional view in BB direction;

[0030] Figure 6 It is a structural diagram of the die pressing mechanism;

[0031] Figure 7 The schematic diagram of the structure of the yarn drum mechanism without the outer petals of the yarn drum;

[0032] Figure 8 for Figure 7 A front view of

[0033] Figure 9 Schematic diagram of the yarn bobbin structure;

[0034] Figure 10 This is a schematic diagram of the installation structure of the yarn drum mechanism (excluding the outer petals of the yarn drum);

[0035] Figure 11 for Figure 10 AA direction cross-sectional view;

[0036] Figure 12 This is a schematic diagram of the structure after the bobbin mechanism is installed;

[0037] Figure 13 for Figure 9 Enlarged view of point A in the middle.

[0038] Including: 1 bobbin mechanism, 2 die pressing mechanism, 3 fluffy yarn mechanism, 4 workbench, 5 bottom plate

[0039] 11 Motor, 12 Second Screw, 13 Yarn Boiler Fixing Seat, 14 First Inner Tube, 15 Scissor Mechanism, 16 Outer Tube, 17 Second Inner Tube, 18 Outer Petal of Yarn Boiler, 19 Bearing, 110 First Screw, 111 Limiting Nut, 112 Middle Bottom Plate, 113 Screw Connector, 114 Driving Wheel, 115 Driven Wheel, 151 No. 1 Hinge Rod, 152 No. 2 Hinge Rod, 181 Protruding Plate, 182 Square Slot

[0040] 21 die cover, 22 die rod, 23 tail connecting rod, 24 middle connecting rod, 25 short connecting rod, 26 bearing seat, 27 cylinder, 28 head connecting rod, 29 connecting rod base, 210 L-shaped bottom plate, 211 fixed column,

[0041] 31 small motor, 32 Z-shaped baffle, 33 upper baffle, 34 rotating cylinder, 36 spring, 37 tension and compression force sensor, 39 upper side plate, 310 lower side plate, 311 first adjusting screw, 312 second adjusting screw DETAILED DESCRIPTION

[0042] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0043] Reference Attachment Figures 1 to 12 The present invention provides a diameter-adjustable bobbin and fluffy yarn device, which includes a diameter-adjustable bobbin mechanism 1, a die pressing mechanism 2, a fluffy yarn mechanism 3 and a working frame 4; the working frame 4 has a T-shaped notch on its surface, and the reverse side of the working frame 4 on both sides of the T-shaped notch is connected to a bottom plate 5 downwardly through a support rod, and a first driving part is provided on the reverse side of the bottom plate 5; the bobbin mechanism 1 includes an outer cylinder 16 with four slide grooves on the upper and lower sides, an inner cylinder 16 that can move vertically is provided inside the outer cylinder 16, and four bobbin outer petals 18 are provided on the outer periphery of the outer cylinder 16, the outer cylinder 16 and the inner cylinder are movably connected to the bobbin outer petals 18 through a plurality of scissor mechanisms, the bottom of the inner cylinder is rotatably connected to a first screw 110, a bearing 19 is installed at the bottom of the inner cylinder, the first screw 110 is fixed to the inner ring of the bearing 19, and a limiting nut 111 is cooperated with the first screw 110 , the limiting nut 111 is fixed to the inner wall of the outer tube 16, one end of the outer tube 16 is inserted into the yarn tube fixing seat 13 of the bottom plate 5, and the first screw 110 is inserted into the first driving part, and the first driving part drives the inner tube to move up and down, so that the scissors mechanism telescopically moves the outer petal 18 of the yarn tube; the pressing mold mechanism 2 is installed on the table top of the working frame 4, and the pressing mold mechanism 2 includes a cylinder 27 installed on the table top of the working frame 4, and the piston rod of the cylinder 27 is movably connected to the pressing mold cover 21 through a connecting rod structure, and the cylinder 27 drives the connecting rod structure to move so that the pressing mold cover 21 presses down the top end of the outer tube 16; the fluffy yarn mechanism 3 includes a rotating cylinder 34 which can be translated and rotatably arranged on the bottom plates 5 on both sides of the yarn tube mechanism 1, and the rotating cylinder 34 rotates to loosen the yarn roll of the yarn tube mechanism 1.

[0044] Reference Attachment Figure 10 and Figure 11, the specific components of the first driving part can be seen from the attached drawings. The first driving part includes a motor 11 and a second screw 12 placed in a bobbin fixing seat 13. The motor 11 is fixed to the reverse side of the bottom plate 5 through a motor mounting frame, and the output shaft of the motor 11 passes through the motor mounting frame and is fixedly connected to a driving wheel 114. One end of the second screw 12 is provided with a hexagonal convex body, and the other end spirally passes through the bottom of the bobbin fixing seat 13 and is connected to a driven wheel 115. The driven wheel 115 is connected to the driving wheel 114 through a belt. The bottom of the first screw 110 is provided with a hexagonal groove, and the hexagonal convex body is placed in the hexagonal groove. When actually used, the bobbin mechanism 1 is inserted into the bobbin fixing seat 13. At this time, the hexagonal convex body at the top of the second screw 12 The hexagonal convex body is inserted into the hexagonal groove at the bottom of the first screw 110, and then the die cover 21 in the die mechanism 2 is pressed to the top of the outer tube 16 to limit the axial position of the yarn tube mechanism 1. At this time, the motor 11 is started to rotate the second screw 12 and the first screw 110 through the belt transmission. The forward and reverse rotation of the motor 11 controls the second screw 12 and the first screw 110 to move up and down, and finally controls the inner tube to move up and down in the outer tube 16, so that the scissors mechanism drives the outer petals 18 of the yarn tube to retract or unfold. It should be noted here that the driven wheel 115 will follow the second screw 12 to move up and down after the motor 11 is started. The moving distance here is small, and the use of a belt can realize the transmission between the driven wheel 115 and the driving wheel 114.

[0045] Specifically, the scissor mechanism can refer to the attached Figure 7 The scissors mechanism includes a No. 1 hinge rod 151 and a No. 2 hinge rod 152; the No. 1 hinge rod 151 is rotatably connected to the middle part of the No. 2 hinge rod 152, the No. 1 hinge rod 151 is placed in the corresponding slide groove and rotatably connected to the inner cylinder, and the other end is movably connected to the outer petal 18 of the yarn tube, and one end of the No. 2 hinge rod 152 rotates the outer cylinder 16, and the other end is also movably connected to the outer petal 18 of the yarn tube. Through the up and down movement of the inner cylinder, the No. 1 hinge rod 151 and the No. 2 hinge rod 152 make a scissor-like motion to control the outer petal 18 of the yarn tube; specifically, the upper and lower ends of the outer petal 18 of the yarn tube facing the outer cylinder 16 are fixed with a convex plate 181 with a square groove 182, and the other ends of the No. 2 hinge rod 152 and the No. 1 hinge rod 151 are movably connected to the square groove 182 through a rotating shaft.

[0046] In actual production, a pair of small ear plates can be installed at both ends of the No. 1 hinge rod 151 and the No. 2 hinge rod 152 at intervals. The No. 1 hinge rod 151 and the No. 2 hinge rod 152 have the same end and are connected to the inner cylinder and the outer cylinder 16 by corresponding rotation through the mounting seat and the rotating shaft. The other end of the No. 1 hinge rod 151 and the No. 2 hinge rod 152 will use the rotating shaft to insert the two ear plates, the square groove 182 and the convex plate 181 between the two ear plates, so that the No. 1 hinge rod 151 and the No. 2 hinge rod 152 can rotate and slide at the connection end with the outer petal 18 of the yarn tube.

[0047] To further improve the practical performance of the device, the length of the inner tube is designed to be adjustable. Figure 11 The structure of the inner cylinder is clearly disclosed. The inner cylinder includes a first inner cylinder 14 with a threaded inner wall and a second inner cylinder 17 with a threaded inner wall. The inner walls of the adjacent ends of the first inner cylinder 14 and the second inner cylinder 17 are connected by a screw connector 113. The distance between the first inner cylinder 14 and the second inner cylinder 17 is adjusted by rotating the first inner cylinder 14 and the second inner cylinder 17. The No. 1 hinge rod 151 in the scissor mechanism is rotatably connected to the first inner cylinder 14 or the second inner cylinder 17. When adjusting the length of the inner cylinder, it is only necessary to relatively twist the second inner cylinder 17 and the first inner cylinder 14 so that the two produce relative displacement, thereby controlling the size of the distance between the two.

[0048] Observation attachment Figure 6 The connecting rod structure includes a connecting rod base 29, which is supported on the table of the workbench 4 by a fixed column 211. Two sets of connecting seats can be provided on the connecting rod base 29, and an intermediate connecting rod 24 is provided between the two sets of connecting seats. A short connecting rod 25 is rotatably connected to one connecting seat, and a head connecting rod 28 is fixed to one end of the rotating shaft of this connecting seat. In actual production, a bearing seat 26 is installed on one side of this connecting seat, and one end of the rotating shaft in the connecting seat is interference fit and passes through the inner ring of the bearing in the bearing seat 26, and then the head connecting rod 28 is fixedly connected to the outlet end of the rotating shaft.

[0049] The tail connecting rod 23 is rotatably connected to the other connecting seat, and the intermediate connecting rod 24 is rotatably connected to the tail connecting rod 23 and the short connecting rod 25 in turn. The tail connecting rod 23 is vertically installed with the die cover 21 through the die rod. The end of the piston rod of the cylinder 27 is rotatably connected to the head connecting rod 28. The cylinder 27 is started to extend its piston rod to push the head connecting rod 28 to rotate clockwise, thereby driving the short connecting rod 25 to push the intermediate connecting rod 24 forward, and finally causing the tail connecting rod 23 to drive the die cover 21 clockwise to press down the top of the bobbin mechanism 1. In the optimized solution, an L-shaped bottom plate 210 is also fixed between the fixed column 211 and the connecting rod base 29. A rectangular groove is provided on the tail connecting rod 23. When the tail connecting rod 23 moves clockwise, the stability of the die cover 21 is improved.

[0050] Combined with attachment Figure 3 、 Figure 4 、 Figure 5 、 Figure 12The bottom plate 5 at the bottom of each rotating cylinder 34 is provided with a long through hole, and a middle bottom plate 112 is vertically extended upward on the front and rear sides of the long through hole. A pair of support plates are extended upward on the left and right sides of the T-shaped notch, and an upper side plate 39 is connected between the left and right side plates of each pair of support plates. The area between each pair of upper side plates 39 and between each pair of middle bottom plates 112 can be used for the rotating cylinder 34 to move laterally. The upper side plate 39 away from the side of the bobbin mechanism 1 is threaded with a second adjusting screw 312, and one end of the second adjusting screw 312 is rotatably connected to the upper baffle 33 between the two upper side plates 39. The rotating shaft at one end of the rotating cylinder 34 is rotatably connected to the upper baffle 33. In actual production, the two upper side plates 39 and the tops of the two support plates are sealed to increase the aesthetics.

[0051] The left and right sides of the bottom plate 5 are provided with lower side plates 310, and the lower side plates 310 are threaded with a first adjusting screw 311, and the first adjusting screw 311 is rotatably connected to a Z-shaped baffle 32 at one end close to the bobbin mechanism 1, and a small motor 31 is installed at the bottom of the Z-shaped baffle 32, and the output shaft of the small motor 31 passes through the Z-shaped baffle 32 and is connected to the other end of the rotating cylinder 34 through a coupling; the second adjusting screw 312 and the first adjusting screw 311 are rotated synchronously to adjust the distance between the rotating cylinder 34 and the bobbin mechanism 1.

[0052] Preferably, a spring 36 is connected between the upper baffle 33 and the upper side plate 39 facing the bobbin mechanism 1. A mounting plate is fixed between each pair of middle bottom plates 112 at the end closest to the bobbin mechanism 1. A tension-compression force sensor 37 is fixed to the mounting plate. A spring 36 is also connected between the tension-compression force sensor 37 and the Z-shaped baffle 32. In actual production, a control system is connected, and the pressure applied to the bobbin mechanism 1 can be reflected when adjusting the rotating cylinder 34, achieving digitalization and controllability in production.

[0053] The use of this device and its working principle:

[0054] 1) In the initial state, the outer petals 18 of the yarn tube mechanism 1 are in a closed state. At this time, the outer tube 16 of the yarn tube mechanism 1 is inserted into the yarn tube fixing seat 13 until the second screw 12 and the first screw 110 are plugged and fixed. The cylinder 27 is started to push the connecting rod mechanism to move, and the die cover 21 is pressed against the top of the outer tube 16. At this time, the motor 11 is started to rotate forward to drive the second screw 12 and the first screw 110 to rotate. The first screw 110 pushes the inner tube upward, so that the two ends of the No. 1 hinge rod 151 and the No. 2 hinge rod 152 in the scissors mechanism 15 are close to each other, forcing the outer petals 18 of each yarn tube to expand. At this time, the first screw 110 is axially limited by the limiting nut 111, so the outer petals 18 of the yarn tube are self-locking.

[0055] 2) Install the bobbin mechanism 1 in step 1) in the winding device, and wind the yarn onto the outer petal 18 of the bobbin until a yarn roll of suitable diameter is achieved.

[0056] 3) The bobbin mechanism 1 with the yarn roll wound in step 2) is inserted into the bobbin fixing seat 13 again until the second screw 12 and the first screw 110 are plugged and fixed. At this time, the motor 11 is rotated in the reverse direction. After step 1), the first screw 110 and the scissor mechanism 15 reversely move, so that the outer petals 18 of each yarn bobbin are retracted and locked, and the yarn inside the yarn roll begins to loosen.

[0057] 4) Based on the actual yarn roll diameter on the bobbin mechanism 1 in step 3), the second adjusting screw 312 and the first adjusting screw 311 are synchronously rotated and adjusted to adjust the distance between the two rotating cylinders 34 and the yarn roll. The small motor 31 is started to drive the rotating cylinder 34 to rotate and rotate to break up the yarn roll, which can greatly increase the fluffy and uniformity of the yarn roll.

[0058] It is understood from common technical knowledge that the present invention may be implemented by other embodiments that do not depart from its spirit or essential features. Therefore, the embodiments disclosed above are, in all respects, merely illustrative and not exclusive. All modifications within the scope of the present invention or equivalent to the scope of the present invention are intended to be encompassed by the present invention.

Claims

1. A diameter-adjustable bobbin device, characterized in that: It comprises a yarn bobbin mechanism (1) with adjustable diameter, a die pressing mechanism (2), a fluffy yarn mechanism (3) and a working frame (4); The surface of the work frame (4) is provided with a T-shaped notch, and the reverse side of the work frame (4) table on both sides of the T-shaped notch is connected downwardly to a bottom plate (5) through a support rod, and the reverse side of the bottom plate (5) is provided with a first driving part; The yarn drum mechanism (1) includes an outer drum (16) with multiple sliding grooves provided on the upper and lower parts, an inner drum that can be moved vertically is provided inside the outer drum (16), and multiple yarn drum outer petals (18) are provided on the outer periphery of the outer drum (16), the outer drum (16) and the inner drum are movably connected to the yarn drum outer petals (18) through multiple scissor mechanisms, the bottom of the inner drum is rotatably connected to a first screw (110), a limiting nut (111) is mounted on the first screw (110), and the limiting nut (111) is fixed to the inner wall of the outer drum (16), one end of the outer drum (16) is plugged into the yarn drum fixing seat (13) of the bottom plate (5), and the first screw (110) is plugged into the first driving part, and the first driving part drives the inner drum to move up and down, so that the scissor mechanism telescopically moves the yarn drum outer petals (18); The die pressing mechanism (2) is mounted on the table of the work frame (4), and the die pressing mechanism (2) includes a cylinder (27) mounted on the table of the work frame (4), and the piston rod of the cylinder (27) is movably connected to the die pressing cover (21) through a connecting rod structure, and the cylinder (27) drives the connecting rod structure to move so that the die pressing cover (21) presses down the top end of the outer cylinder (16); The fluffy yarn mechanism (3) comprises a rotating cylinder (34) which is arranged on the bottom plates (5) on both sides of the yarn drum mechanism (1) and can be translated and rotated. The rotating cylinder (34) rotates to loosen the yarn roll of the yarn drum mechanism (1).

2. A diameter-adjustable bobbin device according to claim 1, characterized in that: The first driving part comprises a motor (11) and a second screw (12) placed in a bobbin fixing seat (13); the motor (11) is fixed to the back side of the base plate (5) through a motor mounting frame, and the output shaft of the motor (11) passes through the motor mounting frame and is fixedly connected to a driving wheel (114); one end of the second screw (12) is provided with a hexagonal convex body, and the other end spirally passes through the bottom of the bobbin fixing seat (13) and is connected to a driven wheel (115); the driven wheel (115) and the driving wheel (114) are connected by a belt; the bottom of the first screw (110) is provided with a hexagonal groove, and the hexagonal convex body is placed in the hexagonal groove.

3. The diameter-adjustable bobbin device according to claim 1, characterized in that: The scissor mechanism comprises a first hinge rod (151) and a second hinge rod (152); The first hinge rod (151) is rotatably connected to the middle of the second hinge rod (152). The first hinge rod (151) is placed in the corresponding slide groove and is rotatably connected to the inner cylinder, and the other end is correspondingly and movably connected to the outer petal (18) of the yarn cylinder. One end of the second hinge rod (152) rotates the outer cylinder (16), and the other end is also correspondingly and movably connected to the outer petal (18) of the yarn cylinder.

4. The diameter-adjustable bobbin device according to claim 3, characterized in that: A convex plate (181) with a square groove (182) is fixed to the upper and lower ends of the outer petal (18) of the yarn tube facing the outer tube (16), and the other ends of the second hinge rod (152) and the first hinge rod (151) are movably connected to the square groove (182) via a rotating shaft.

5. The diameter-adjustable bobbin device according to claim 3, characterized in that: The inner cylinder is adjustable in length and comprises a first inner cylinder (14) having an inner wall provided with a thread and a second inner cylinder (17) having an inner wall provided with a thread. The inner walls of the adjacent ends of the first inner cylinder (14) and the second inner cylinder (17) are connected by a screw connector (113). The distance between the first inner cylinder (14) and the second inner cylinder (17) is adjusted by rotating the first inner cylinder (14) and the second inner cylinder (17). The hinge rod (151) in the scissor mechanism is rotatably connected to the first inner cylinder (14) or the second inner cylinder (17).

6. The diameter-adjustable bobbin device according to claim 1, characterized in that: The connecting rod structure includes a connecting rod base (29), which is supported on the table of the workbench (4) through a fixed column (211). Two groups of connecting seats are provided on the connecting rod base (29), and an intermediate connecting rod (24) is provided between the two groups of connecting seats. A short connecting rod (25) is rotatably connected to one connecting seat, and a head connecting rod (28) is fixed at one end of the rotating shaft of the connecting seat. The tail connecting rod (23) is rotatably connected to the other connecting seat. The intermediate connecting rod (24) rotatably connects the tail connecting rod (23) and the short connecting rod (25) in sequence. The tail connecting rod (23) is vertically mounted with a die cover (21) through a die rod. The end of the piston rod of the cylinder (27) is rotatably connected to the head connecting rod (28).

7. The diameter-adjustable bobbin device according to claim 1, characterized in that: A long through hole is provided on the bottom plate (5) at the bottom of each rotating cylinder (34), and a middle bottom plate (112) extends vertically upward on both the front and rear sides of the long through hole. A pair of support plates extend upward on both the left and right sides of the T-shaped notch. An upper side plate (39) is connected between the left and right side plates of each pair of support plates. A second adjusting screw (312) is threadedly passed through the upper side plate (39) on the side away from the bobbin mechanism (1). One end of the second adjusting screw (312) is rotatably connected to the upper baffle (33) and one end of the rotating cylinder (34) is rotatably connected to the upper baffle (33). The bottom plate (5) is provided with lower side plates (310) on the left and right sides, and a first adjusting screw (311) is threadedly passed through the lower side plate (310). One end of the first adjusting screw (311) close to the bobbin mechanism (1) is rotatably connected to a Z-shaped baffle (32). A small motor (31) is installed at the bottom of the Z-shaped baffle (32), and the output shaft of the small motor (31) passes through the Z-shaped baffle (32) and is connected to the other end of the rotating shaft of the rotating cylinder (34) through a coupling.

8. The diameter-adjustable bobbin device according to claim 7, characterized in that: A spring (36) is connected between the upper baffle (33) and the upper side plate (39) facing the bobbin mechanism (1); A mounting plate is fixed between one end of each pair of the middle bottom plates (112) close to the bobbin mechanism (1), a tension-compression force sensor (37) is fixed on the mounting plate, and a spring (36) is also connected between the tension-compression force sensor (37) and the Z-shaped baffle (32).

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