Recovery device for defective woolen sweater yarn

Abstract

The invention discloses a woolen sweater defective yarn recovery device, and relates to the technical field of woolen sweater processing.The woolen sweater defective yarn recovery device comprises a rack, a power unit is arranged at the bottom of the inner side of the rack, a pressing supporting mechanism is arranged at the top end of the power unit, and a winding recovery mechanism is arranged on the right side of the pressing supporting mechanism; the top and the right side of the winding and recycling mechanism are jointly provided with a yarn separating mechanism, and the right side of the power unit is provided with a woolen sweater placing mechanism. The pressing and supporting mechanism comprises an L-shaped plate, a limiting block, a one-way screw rod, a driven gear, a first moving plate, a rotating disc, a first square magnet and a pressing strip. When yarns are recycled, the ends of the yarns do not need to be manually wound and fixed, yarn rolls can be conveniently taken down subsequently, the operation difficulty is lowered, and meanwhile the defective yarn recycling efficiency can be effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of wool sweater processing, in particular to a recovery device for defective wool sweater yarns. Background Art

[0002] Defective wool sweaters will be produced during the production process. In order to ensure product quality and avoid waste, defective wool sweaters will be disassembled into yarn for recycling. The recycled yarn can be used again in the production of wool sweaters.

[0003] The utility model patent with authorization announcement number CN206477075U discloses a device for recycling defective yarn of wool sweaters, including a base plate, on the top of which a left-rotating recycling platform and a wool sweater placement box are fixedly installed in sequence from left to right, a first support plate and a second support plate are fixedly installed at the front end and the rear end of the top of the left-rotating recycling platform respectively, a limiting hole is provided on the side of the first support plate, a limiting block is fixedly installed on the side of the second support plate, a motor clamp is fixedly installed on the bottom of the inner cavity of the second support plate, a motor is fixedly installed on the side of the motor clamp, and the output shaft of the motor is fixedly connected to an active roller that passes through the second support plate and the limiting block in sequence and extends to the top of the left-rotating recycling platform.

[0004] However, after actual application by technicians skilled in the art, it was found that the above device still has some shortcomings. The most obvious one is that before yarn recovery, in order to ensure the normal winding of the driven roller, the operator needs to manually wind the yarn around the outside of the driven roller for several turns, which is a cumbersome operation. In addition, after the subsequent yarn recovery is completed, since the inner yarn is tightly fitted to the driven roller, it is not convenient to remove the yarn roll from the outside of the driven roller. The overall operation is difficult and has a great impact on the recovery efficiency of defective yarn.

[0005] Therefore, it is necessary to invent a recovery device for defective wool sweater yarn to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide a recovery device for defective yarn of wool sweaters, which is provided with a power unit, a pressing support mechanism, a winding recovery mechanism, a yarn separation mechanism and a wool sweater placing mechanism, so that the power unit can be used to lift the pressing support mechanism, so that the pressing support mechanism cooperates with the winding recovery mechanism to clamp the yarn end, and then the winding recovery mechanism continuously rewinds the yarn. During the rewinding process, the power unit drives the wool sweater placing mechanism to repeatedly move left and right, so that the yarn winding is more uniform, and then the power unit drives the pressing support mechanism, so that the components in the pressing support mechanism are moved by the yarn. The yarn is pulled out from the wire roll to loosen the yarn roll, and then the power unit triggers the yarn disengagement mechanism, which in turn pushes the loose yarn roll to the discharging station to facilitate subsequent discharging, so as to solve the following problems raised in the above background technology: Before the yarn is recovered, in order to ensure the normal winding of the driven roller, the operator needs to manually wrap the yarn around the outside of the driven roller for several turns, which is a cumbersome operation. In addition, after the subsequent yarn recovery is completed, the inner yarn is tightly fitted to the driven roller, so it is not convenient to remove the yarn roll from the outside of the driven roller. The overall operation is difficult and has a great impact on the recovery efficiency of defective yarn.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a recovery device for defective wool sweater yarn, comprising a frame, a power unit is arranged at the bottom of the inner side of the frame, a pressing support mechanism is arranged at the top of the power unit, a winding recovery mechanism is arranged on the right side of the pressing support mechanism, a yarn separation mechanism is arranged on the top and right side of the winding recovery mechanism, and a wool sweater placing mechanism is arranged on the right side of the power unit; The clamping support mechanism includes an L-shaped plate, a limit block, a one-way screw, a driven gear, a first moving plate, a rotating disk, a first square magnet and a clamping strip; The limit block is located at the top of the L-shaped plate and is fixedly connected to the inner wall of the frame, the one-way screw penetrates the L-shaped plate and is rotatably connected to the L-shaped plate through a bearing, the driven gear is fixedly arranged on the left end of the one-way screw, the first movable plate transmission sleeve is arranged on the outside of the one-way screw and is slidably connected to the L-shaped plate, the rotating disk is rotatably nested on the right side of the first movable plate through a bearing, the first square magnet is fixedly nested in the middle of the right side of the rotating disk, and the clamping strip is fixedly arranged on the bottom of the rotating disk.

[0008] Preferably, the power unit includes a base plate, a first reciprocating screw, a first motor, an L-shaped arm, a lifting plate, a guide column, a first spring, a push rod and a rack.

[0009] Preferably, the base plate is fixedly arranged at the inner bottom of the frame, the first reciprocating screw penetrates the base plate and is rotatably connected to the base plate through a bearing, the first motor is fixedly arranged at the bottom of the base plate and is transmission-connected to the first reciprocating screw, the L-shaped arm is sleeved on the outside of the first reciprocating screw and is transmission-connected to the first reciprocating screw, the lifting plate is fixedly connected to the top of the L-shaped arm, the guide column slides through the top of the lifting plate and is fixedly connected to the bottom of the L-shaped plate, the first spring is sleeved on the outside of the guide column and is fixedly connected between the lifting plate and the L-shaped plate, the push rod is fixedly arranged on the left side of the top of the lifting plate, and the rack is fixedly arranged in the middle of the front side of the push rod.

[0010] Preferably, the winding recovery mechanism includes a second movable plate, a second motor, a winding roller and a second square magnet.

[0011] Preferably, the second movable plate is slidably arranged on the top inner side of the frame, the second motor is fixedly arranged on the right side of the second movable plate, the winding roller is located on the left side of the second movable plate and is transmission-connected to the second motor, and the second square magnet is fixedly nested at the left end of the winding roller.

[0012] Preferably, the yarn disengagement mechanism comprises a push plate, an end plate, a sliding rod, a second spring, a connecting arm and a trigger block.

[0013] Preferably, the push plate is slidably sleeved on the outside of the winding roller and fixedly connected to the inner wall of the frame, the end plate is fixedly set at the right end of the inner side of the frame, the sliding rod slides through the end plate and is fixedly connected to the second movable plate, the second spring is sleeved on the outside of the sliding rod and fixedly connected between the end plate and the second movable plate, the connecting arm is fixedly set at the top of the second movable plate, and the trigger block is fixedly set at the end of the connecting arm.

[0014] Preferably, the sweater placement mechanism includes a U-shaped base, a second reciprocating screw, a sliding seat, a sweater placement box, a traction tube and two bevel gears.

[0015] Preferably, the U-shaped base is fixedly arranged on the top of the base plate, the second reciprocating screw penetrates the U-shaped base and is rotatably connected to the U-shaped base through a bearing, the sliding seat transmission sleeve is arranged on the outside of the second reciprocating screw and is slidably arranged on the inside of the U-shaped base, the sweater placement box is fixedly arranged on the top of the sliding seat, and the traction tube is fixedly penetrated and arranged on the rear side of the top of the sweater placement box, the two bevel gears are meshed with each other, one bevel gear is fixedly arranged on the left end of the second reciprocating screw, and the other bevel gear is fixedly sleeved on the bottom end of the outside of the first reciprocating screw.

[0016] The present invention also discloses a yarn recovery method based on the recovery device for defective wool sweater yarns, and the method specifically comprises the following steps: S1. Open the cover of the sweater storage box, place the defective sweaters inside the sweater storage box, and pass the yarn drawn from the defective sweaters through the traction tube, then close the cover, pull the yarn end upwards, and place it on the top of the pressing bar; S2, start the first motor and the second motor. After the first motor is started, it drives the first reciprocating screw to rotate. When the first reciprocating screw rotates, it drives the L-shaped arm to continue to rise. When the L-shaped arm rises, it drives the top rod and the rack to rise through the lifting plate, and drives the L-shaped plate to rise through the first spring. During the rising process, the L-shaped plate moves toward the direction close to the limit block; S3, when the top of the L-shaped plate contacts the bottom of the limit block, the limit block blocks the L-shaped plate, so that the L-shaped plate cannot continue to rise. At this time, as the first reciprocating screw continues to rotate, the L-shaped arm continues to drive the top rod and the rack to rise through the lifting plate, and the first spring is continuously compressed. In addition, due to the rise of the L-shaped plate, the clamping strip drives the end of the yarn to fit the bottom of the winding roller. At this time, the clamping strip cooperates with the winding roller to clamp the yarn, and the first square magnet and the second square magnet are attracted to each other. S4, after the second motor is started, it drives the winding roller and the second square magnet to rotate continuously. During the rotation of the second square magnet, the rotating disk is driven to rotate through the first square magnet. During the rotation of the rotating disk, the pressing strip is driven to rotate synchronously. At this time, the winding roller cooperates with the pressing strip to continuously wind the yarn. During the winding process, the first reciprocating screw drives the second reciprocating screw to rotate continuously through two umbrella gears. During the rotation of the second reciprocating screw, the sweater placement box is driven to move left and right continuously through the sliding seat; S5. When the yarn winding is completed, the rack meshes with the driven gear, and the subsequent rack continues to rise, and the driven gear drives the one-way screw to rotate continuously. When the one-way screw rotates, it drives the first movable plate to move continuously to the left. During the left movement of the first movable plate, the pressing strip is driven by the rotating disk to be gradually pulled out of the yarn roll outside the winding roller; S6, when the pressure strip is fully drawn out, the top of the push rod contacts the bottom inclined surface of the trigger block, and subsequently as the push rod continues to move upward, the trigger block moves rightward under the push of the push rod, and during the rightward movement of the trigger block, the second movable plate is driven to move rightward through the connecting arm, and the second movable plate is compressed when it moves rightward, and at the same time, the winding roller is driven to move rightward, and during the rightward movement of the winding roller, the loose yarn roll on the outer side of the winding roller due to the drawing out of the pressure strip moves toward the left end of the winding roller under the obstruction of the push plate; S7, after the L-shaped arm moves to the top of the reciprocating thread on the outer side of the first reciprocating screw, as the first reciprocating screw continues to rotate, the guide column moves down and resets. During this process, the operator manually takes off the loose yarn located at the left end of the outer side of the winding roller; S8. When the guide column arrives at the initial station, the clamping support mechanism, the winding recovery mechanism, the yarn separation mechanism and the sweater placement mechanism are also reset successively. At this time, the first motor is stopped, and then the new defective sweater is placed inside the sweater placement box, and then the recycling operation is started again.

[0017] Technical effects and advantages of the present invention:

[0018] The present invention is provided with a power unit, a pressing support mechanism, a winding and recovery mechanism, a yarn disengaging mechanism and a sweater placing mechanism, so that the pressing support mechanism can be lifted by the power unit, and the pressing support mechanism cooperates with the winding and recovery mechanism to clamp the yarn end, and then the winding and recovery mechanism continuously rewinds the yarn. During the rewinding process, the power unit drives the sweater placing mechanism to repeatedly move left and right, so that the yarn winding is more uniform. Then the power unit drives the pressing support mechanism, so that the components in the pressing support mechanism are pulled out from the yarn roll to loosen the yarn roll. Then the power unit triggers the yarn disengaging mechanism, so that the yarn disengaging mechanism pushes the loose yarn roll to the discharging station to facilitate subsequent discharging. Compared with the same type of devices and methods in the prior art, the present invention does not need to manually wind and fix the yarn end when recycling the yarn, and the yarn roll can be removed more conveniently later, which reduces the difficulty of operation and effectively improves the efficiency of recycling defective yarn. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the power unit structure of the present invention; Figure 3 It is a structural schematic diagram of the pressing support mechanism of the present invention; Figure 4 It is a schematic diagram of the structure of the winding recovery mechanism and the yarn separation mechanism of the present invention; Figure 5 It is a schematic diagram of the structure of the sweater placing mechanism of the present invention.

[0020] In the figure: 1, frame; 2, power unit; 21, bottom plate; 22, first reciprocating screw; 23, first motor; 24, L-shaped arm; 25, lifting plate; 26, guide column; 27, first spring; 28, top rod; 29, rack; 3, clamping support mechanism; 31, L-shaped plate; 32, limit block; 33, one-way screw; 34, driven gear; 35, first moving plate; 36, rotating disk; 37, first square magnet; 38, clamping strip; 4. Winding and recycling mechanism; 41. Second movable plate; 42. Second motor; 43. Winding roller; 44. Second square magnet; 5. Yarn disengaging mechanism; 51. Push plate; 52. End plate; 53. Sliding rod; 54. Second spring; 55. Connecting arm; 56. Trigger block; 6. Sweater placing mechanism; 61. U-shaped base; 62. Second reciprocating screw; 63. Sliding seat; 64. Sweater placing box; 65. Traction tube; 66. Umbrella gear. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The present invention provides Figure 1-5 A recovery device for defective yarn of wool sweaters shown in the figure comprises a frame 1, a power unit 2 is arranged at the inner bottom of the frame 1, a clamping support mechanism 3 is arranged at the top of the power unit 2, a winding recovery mechanism 4 is arranged on the right side of the clamping support mechanism 3, a yarn separation mechanism 5 is arranged on the top and right side of the winding recovery mechanism 4, and a wool sweater placing mechanism 6 is arranged on the right side of the power unit 2.

[0023] like Figure 2As shown, the power unit 2 includes a base plate 21, a first reciprocating screw 22, a first motor 23, an L-shaped arm 24, a lifting plate 25, a guide column 26, a first spring 27, a push rod 28 and a rack 29, wherein the base plate 21 is fixedly arranged at the inner bottom of the frame 1, the first reciprocating screw 22 penetrates the base plate 21 and is rotatably connected to the base plate 21 through a bearing, the first motor 23 is fixedly arranged at the bottom of the base plate 21 and is transmission-connected to the first reciprocating screw 22, the L-shaped arm 24 is sleeved on the outside of the first reciprocating screw 22 and is transmission-connected thereto, the lifting plate 25 is fixedly connected to the top of the L-shaped arm 24, the guide column 26 slides through the top of the lifting plate 25 and is fixedly connected to the bottom of the L-shaped plate 31, the first spring 27 is sleeved on the outside of the guide column 26 and is fixedly connected between the lifting plate 25 and the L-shaped plate 31, the push rod 28 is fixedly arranged on the left side of the top of the lifting plate 25, and the rack 29 is fixedly arranged in the middle of the front of the push rod 28.

[0024] By setting the above structure, the first motor 23 can drive the first reciprocating screw 22 to rotate after being started. When the first reciprocating screw 22 rotates, it drives the L-shaped arm 24 to continue to rise. When the L-shaped arm 24 rises, it drives the top rod 28 and the rack 29 to rise through the lifting plate 25, and drives the L-shaped plate 31 to rise through the first spring 27.

[0025] like Figure 3 As shown, the clamping support mechanism 3 includes an L-shaped plate 31, a limit block 32, a one-way screw 33, a driven gear 34, a first movable plate 35, a rotating disk 36, a first square magnet 37 and a clamping strip 38, wherein the L-shaped plate 31 is fixedly arranged at the top of the guide column 26, the limit block 32 is located at the top of the L-shaped plate 31 and is fixedly connected to the inner wall of the frame 1, the one-way screw 33 passes through the L-shaped plate 31 and is rotatably connected to the L-shaped plate 31 through a bearing, the driven gear 34 is fixedly arranged at the left end of the one-way screw 33, the first movable plate 35 is transmission-sleeved on the outside of the one-way screw 33 and is slidably connected to the L-shaped plate 31, the rotating disk 36 is rotatably nested on the right side of the first movable plate 35 through a bearing, the first square magnet 37 is fixedly nested in the middle of the right side of the rotating disk 36, and the clamping strip 38 is fixedly arranged at the bottom of the rotating disk 36.

[0026] By setting the above structure, the L-shaped arm 24 can drive the L-shaped plate 31 to rise when it rises. During the rising process, the L-shaped plate 31 moves toward the direction close to the limit block 32. When the top of the L-shaped plate 31 contacts the bottom of the limit block 32, the limit block 32 blocks the L-shaped plate 31, so that the L-shaped plate 31 cannot continue to rise. At this time, as the first reciprocating screw 22 continues to rotate, the L-shaped arm 24 continues to drive the top rod 28 and the rack 29 to rise through the lifting plate 25, and the first spring 27 is continuously compressed. In addition, due to the rise of the L-shaped plate 31, the clamping strip 38 drives the end of the yarn to fit the bottom of the winding roller 43. At this time, the clamping strip 38 cooperates with the winding roller 43 to clamp the yarn, and the first square magnet 37 and the second square magnet 44 are attracted to each other.

[0027] like Figure 4 As shown, the winding recovery mechanism 4 includes a second movable plate 41, a second motor 42, a winding roller 43 and a second square magnet 44, wherein the second movable plate 41 is slidably arranged on the top inner side of the frame 1, the second motor 42 is fixedly arranged on the right side of the second movable plate 41, the winding roller 43 is located on the left side of the second movable plate 41 and is transmission-connected to the second motor 42, and the second square magnet 44 is fixedly nested at the left end of the winding roller 43.

[0028] By setting the above structure, the second motor 42 can drive the winding roller 43 and the second square magnet 44 to rotate continuously after starting. During the rotation of the second square magnet 44, the first square magnet 37 drives the rotating disk 36 to rotate. During the rotation of the rotating disk 36, the pressure strip 38 is driven to rotate synchronously. At this time, the winding roller 43 cooperates with the pressure strip 38 to continuously wind the yarn.

[0029] like Figure 4 As shown, the yarn disengagement mechanism 5 includes a push plate 51, an end plate 52, a sliding rod 53, a second spring 54, a connecting arm 55 and a trigger block 56, wherein the push plate 51 is slidably sleeved on the outside of the winding roller 43 and fixedly connected to the inner wall of the frame 1, the end plate 52 is fixedly arranged at the right end of the inner side of the frame 1, the sliding rod 53 slides through the end plate 52 and is fixedly connected to the second movable plate 41, the second spring 54 is sleeved on the outside of the sliding rod 53 and fixedly connected between the end plate 52 and the second movable plate 41, the connecting arm 55 is fixedly arranged at the top of the second movable plate 41, and the trigger block 56 is fixedly arranged at the end of the connecting arm 55.

[0030] By setting the above structure, after the top end of the push rod 28 contacts the bottom inclined surface of the trigger block 56, as the push rod 28 continues to move upward, the trigger block 56 moves to the right under the push of the push rod 28. During the rightward movement of the trigger block 56, the second movable plate 41 is driven to move to the right through the connecting arm 55. When the second movable plate 41 moves to the right, the second spring 54 is compressed, and the winding roller 43 is driven to move to the right at the same time. During the rightward movement of the winding roller 43, the loose yarn roll on the outside of the winding roller 43 due to the withdrawal of the pressure strip 38 moves toward the left end of the winding roller 43 under the obstruction of the push plate 51, thereby facilitating subsequent manual removal.

[0031] like Figure 5 As shown, the sweater placement mechanism 6 includes a U-shaped base 61, a second reciprocating screw 62, a sliding seat 63, a sweater placement box 64, a traction tube 65 and two bevel gears 66, wherein the U-shaped base 61 is fixedly arranged on the top of the bottom plate 21, the second reciprocating screw 62 passes through the U-shaped base 61 and is rotatably connected to the U-shaped base 61 through a bearing, the sliding seat 63 is transmission sleeved on the outside of the second reciprocating screw 62 and slidably arranged on the inside of the U-shaped base 61, the sweater placement box 64 is fixedly arranged on the top of the sliding seat 63, the traction tube 65 is fixedly penetrated and arranged on the rear side of the top of the sweater placement box 64, the two bevel gears 66 are meshed with each other, one bevel gear 66 is fixedly arranged on the left end of the second reciprocating screw 62, and the other bevel gear 66 is fixedly sleeved on the bottom end of the outer side of the first reciprocating screw 22.

[0032] By setting the above structure, it is convenient to open the box cover of the sweater placement box 64, place the defective sweaters inside the sweater placement box 64, and at the same time pass the yarn drawn out from the defective sweaters through the traction tube 65, then close the box cover and pull the yarn end upward. In the subsequent process of yarn winding, the first reciprocating screw 22 drives the second reciprocating screw 62 to rotate continuously through the two umbrella gears 66. During the rotation of the second reciprocating screw 62, the sweater placement box 64 is driven to move continuously left and right through the sliding seat 63, so that the yarn winding is more uniform.

[0033] The present invention also discloses a yarn recovery method based on the recovery device for defective wool sweater yarns, and the method specifically comprises the following steps: S1, open the cover of the sweater placing box 64, place the defective sweater inside the sweater placing box 64, and pass the yarn drawn from the defective sweater through the traction tube 65, then close the cover, pull the yarn end upward, and place it on the top of the pressing strip 38; S2, start the first motor 23 and the second motor 42. After the first motor 23 is started, it drives the first reciprocating screw 22 to rotate. When the first reciprocating screw 22 rotates, it drives the L-shaped arm 24 to continuously rise. When the L-shaped arm 24 rises, it drives the top rod 28 and the rack 29 to rise through the lifting plate 25, and drives the L-shaped plate 31 to rise through the first spring 27. During the rising process, the L-shaped plate 31 moves toward the direction close to the limit block 32; S3, when the top of the L-shaped plate 31 contacts the bottom of the limit block 32, the limit block 32 blocks the L-shaped plate 31, so that the L-shaped plate 31 cannot continue to rise. At this time, as the first reciprocating screw 22 continues to rotate, the L-shaped arm 24 continues to drive the top rod 28 and the rack 29 to rise through the lifting plate 25, and the first spring 27 is continuously compressed. In addition, due to the rise of the L-shaped plate 31, the clamping strip 38 drives the end of the yarn to fit the bottom of the winding roller 43. At this time, the clamping strip 38 cooperates with the winding roller 43 to clamp the yarn, and the first square magnet 37 and the second square magnet 44 are attracted to each other. S4, after the second motor 42 is started, it drives the winding roller 43 and the second square magnet 44 to rotate continuously. During the rotation of the second square magnet 44, the rotating disk 36 is driven to rotate through the first square magnet 37. During the rotation of the rotating disk 36, the pressing strip 38 is driven to rotate synchronously. At this time, the winding roller 43 cooperates with the pressing strip 38 to continuously wind the yarn. During the winding process, the first reciprocating screw 22 drives the second reciprocating screw 62 to rotate continuously through the two umbrella gears 66. During the rotation of the second reciprocating screw 62, the sweater placement box 64 is driven to continuously move left and right through the sliding seat 63; S5. When the yarn winding is completed, the rack 29 meshes with the driven gear 34. The rack 29 continues to rise, and the driven gear 34 drives the one-way screw 33 to rotate continuously. When the one-way screw 33 rotates, it drives the first movable plate 35 to move left continuously. During the leftward movement of the first movable plate 35, the pressing strip 38 is driven by the rotating disk 36 to be gradually withdrawn from the yarn roll outside the winding roller 43. S6, when the pressing strip 38 is fully withdrawn, the top end of the push rod 28 contacts the bottom inclined surface of the trigger block 56, and subsequently as the push rod 28 continues to move upward, the trigger block 56 moves rightward under the push of the push rod 28, and during the rightward movement of the trigger block 56, the second movable plate 41 is driven to move rightward through the connecting arm 55, and the second movable plate 41 compresses the second spring 54 when it moves rightward, and at the same time drives the winding roller 43 to move rightward, and during the rightward movement of the winding roller 43, the loose yarn roll on the outer side of the winding roller 43 due to the withdrawal of the pressing strip 38 moves toward the left end of the winding roller 43 under the obstruction of the push plate 51; S7, after the L-shaped arm 24 moves to the top of the reciprocating thread on the outside of the first reciprocating screw 22, as the first reciprocating screw 22 continues to rotate, the guide column 26 moves down and resets. During this process, the operator manually winds off the loose yarn located at the left end of the outside of the winding roller 43; S8. When the guide column 26 arrives at the initial workstation, the clamping support mechanism 3, the winding recovery mechanism 4, the yarn separation mechanism 5 and the sweater placement mechanism 6 are also reset successively. At this time, the first motor 23 is stopped, and then the new defective sweater is placed inside the sweater placement box 64, and then the recycling operation is started again.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for recovering defective wool sweater yarn, characterized in that: It comprises a frame (1), a power unit (2) is arranged at the bottom of the inner side of the frame (1), a pressing support mechanism (3) is arranged at the top of the power unit (2), a winding recovery mechanism (4) is arranged on the right side of the pressing support mechanism (3), a yarn separation mechanism (5) is arranged on the top and right side of the winding recovery mechanism (4), and a sweater placement mechanism (6) is arranged on the right side of the power unit (2); The pressing support mechanism (3) comprises an L-shaped plate (31), a limit block (32), a one-way screw (33), a driven gear (34), a first movable plate (35), a rotating disk (36), a first square magnet (37) and a pressing strip (38); The L-shaped plate (31) is fixedly arranged at the top of the guide column (26); the limit block (32) is located at the top of the L-shaped plate (31) and is fixedly connected to the inner wall of the frame (1); the one-way screw (33) passes through the L-shaped plate (31) and is rotatably connected to the L-shaped plate (31) via a bearing; the driven gear (34) is fixedly arranged at the left end of the one-way screw (33); the first movable plate (35) is transmission sleeved and arranged on the outside of the one-way screw (33) and is slidably connected to the L-shaped plate (31); the rotating disk (36) is rotatably nested on the right side of the first movable plate (35) via a bearing; the first square magnet (37) is fixedly nested in the middle of the right side of the rotating disk (36); and the pressing strip (38) is fixedly arranged at the bottom of the rotating disk (36).

2. A recycling device for defective wool sweater yarn according to claim 1, characterized in that: The power unit (2) comprises a base plate (21), a first reciprocating screw rod (22), a first motor (23), an L-shaped arm (24), a lifting plate (25), a guide column (26), a first spring (27), a push rod (28), and a rack (29).

3. A recycling device for defective wool sweater yarn according to claim 2, characterized in that: The bottom plate (21) is fixedly arranged at the bottom inner side of the frame (1); the first reciprocating screw (22) passes through the bottom plate (21) and is rotatably connected to the bottom plate (21) via a bearing; the first motor (23) is fixedly arranged at the bottom of the bottom plate (21) and is transmission-connected to the first reciprocating screw (22); the L-shaped arm (24) is sleeved on the outside of the first reciprocating screw (22) and is transmission-connected thereto; the lifting plate (25) is fixedly connected to the top of the L-shaped arm (24); the guide column (26) slides through the top of the lifting plate (25) and is fixedly connected to the bottom of the L-shaped plate (31); the first spring (27) is sleeved on the outside of the guide column (26) and is fixedly connected between the lifting plate (25) and the L-shaped plate (31); the push rod (28) is fixedly arranged at the left side of the top of the lifting plate (25); and the rack (29) is fixedly arranged at the middle of the front of the push rod (28).

4. A recycling device for defective wool sweater yarn according to claim 3, characterized in that: The winding recovery mechanism (4) comprises a second movable plate (41), a second motor (42), a winding roller (43) and a second square magnet (44).

5. A recycling device for defective wool sweater yarn according to claim 4, characterized in that: The second movable plate (41) is slidably disposed on the top inner side of the frame (1); the second motor (42) is fixedly disposed on the right side of the second movable plate (41); the winding roller (43) is located on the left side of the second movable plate (41) and is transmission-connected to the second motor (42); and the second square magnet (44) is fixedly nested at the left end of the winding roller (43).

6. A recycling device for defective wool sweater yarn according to claim 5, characterized in that: The yarn disengagement mechanism (5) comprises a push plate (51), an end plate (52), a sliding rod (53), a second spring (54), a connecting arm (55) and a trigger block (56).

7. A recycling device for defective wool sweater yarn according to claim 6, characterized in that: The push plate (51) is slidably sleeved on the outside of the winding roller (43) and fixedly connected to the inner wall of the frame (1); the end plate (52) is fixedly arranged at the right end of the inner side of the frame (1); the sliding rod (53) slides through the end plate (52) and is fixedly connected to the second movable plate (41); the second spring (54) is sleeved on the outside of the sliding rod (53) and fixedly connected between the end plate (52) and the second movable plate (41); the connecting arm (55) is fixedly arranged at the top of the second movable plate (41); and the trigger block (56) is fixedly arranged at the end of the connecting arm (55).

8. The device for recovering defective wool sweater yarn according to claim 7, characterized in that: The sweater placement mechanism (6) comprises a U-shaped base (61), a second reciprocating screw (62), a sliding seat (63), a sweater placement box (64), a traction tube (65) and two bevel gears (66).

9. A recycling device for defective wool sweater yarn according to claim 8, characterized in that: The U-shaped base (61) is fixedly arranged on the top of the bottom plate (21); the second reciprocating screw (62) passes through the U-shaped base (61) and is rotatably connected to the U-shaped base (61) via a bearing; the sliding seat (63) is transmission sleeved on the outside of the second reciprocating screw (62) and slidably arranged on the inside of the U-shaped base (61); the sweater placement box (64) is fixedly arranged on the top of the sliding seat (63); the traction tube (65) is fixedly arranged on the rear side of the top of the sweater placement box (64); the two bevel gears (66) are meshed with each other; one bevel gear (66) is fixedly arranged on the left end of the second reciprocating screw (62); and the other bevel gear (66) is fixedly sleeved on the bottom end of the outside of the first reciprocating screw (22).

10. A yarn recycling method based on the recycling device for defective yarn of wool sweaters according to claim 9, characterized in that: The method specifically comprises the following steps: S1, opening the cover of the sweater storage box (64), placing the defective sweater inside the sweater storage box (64), and passing the yarn drawn from the defective sweater through the traction tube (65), then closing the cover, pulling the end of the yarn upward, and placing it on the top of the pressing strip (38); S2, starting the first motor (23) and the second motor (42). After the first motor (23) is started, it drives the first reciprocating screw (22) to rotate. When the first reciprocating screw (22) rotates, it drives the L-shaped arm (24) to continuously rise. When the L-shaped arm (24) rises, it drives the top rod (28) and the rack (29) to rise through the lifting plate (25). The L-shaped plate (31) is driven to rise through the first spring (27). During the rising process, the L-shaped plate (31) moves in a direction close to the limit block (32); S3, when the top of the L-shaped plate (31) contacts the bottom of the limit block (32), the limit block (32) blocks the L-shaped plate (31), preventing the L-shaped plate (31) from continuing to rise. At this time, as the first reciprocating screw (22) continues to rotate, the L-shaped arm (24) continues to drive the top rod (28) and the rack (29) to rise through the lifting plate (25), and at the same time, the first spring (27) is continuously compressed. In addition, due to the rise of the L-shaped plate (31), the clamping strip (38) drives the end of the yarn to fit the bottom of the winding roller (43). At this time, the clamping strip (38) cooperates with the winding roller (43) to clamp the yarn, and at the same time, the first square magnet (37) and the second square magnet (44) are attracted to each other; S4, after the second motor (42) is started, it drives the winding roller (43) and the second square magnet (44) to rotate continuously. During the rotation of the second square magnet (44), the rotating disk (36) is driven to rotate through the first square magnet (37). During the rotation of the rotating disk (36), the pressing strip (38) is driven to rotate synchronously. At this time, the winding roller (43) cooperates with the pressing strip (38) to continuously wind the yarn. During the winding process, the first reciprocating screw (22) drives the second reciprocating screw (62) to rotate continuously through the two umbrella gears (66). During the rotation of the second reciprocating screw (62), the sweater placement box (64) is driven to continuously move left and right through the sliding seat (63); S5, when the yarn winding is completed, the rack (29) meshes with the driven gear (34), and the rack (29) continues to rise, and the driven gear (34) drives the one-way screw (33) to rotate continuously. When the one-way screw (33) rotates, it drives the first movable plate (35) to move continuously to the left. During the leftward movement of the first movable plate (35), the pressing strip (38) is driven by the rotating disk (36) to be gradually withdrawn from the yarn roll outside the winding roller (43); S6, when the pressure strip (38) is fully withdrawn, the top end of the push rod (28) contacts the bottom inclined surface of the trigger block (56), and subsequently, as the push rod (28) continues to move upward, the trigger block (56) moves rightward under the push of the push rod (28), and during the rightward movement of the trigger block (56), the second movable plate (41) is driven to move rightward through the connecting arm (55), and when the second movable plate (41) moves rightward, the second spring (54) is compressed, and the winding roller (43) is driven to move rightward at the same time. During the rightward movement of the winding roller (43), the yarn roll on the outer side of the winding roller (43) that is loosened due to the withdrawal of the pressure strip (38) moves toward the left end of the winding roller (43) under the obstruction of the push plate (51); S7, after the L-shaped arm (24) moves to the top of the reciprocating thread on the outside of the first reciprocating screw (22), as the first reciprocating screw (22) continues to rotate, the guide column (26) moves downward and resets, during which the operator manually takes off the loose yarn located at the left end of the outside of the winding roller (43); S8. When the guide column (26) reaches the initial working position, the pressing support mechanism (3), the winding recovery mechanism (4), the yarn separation mechanism (5) and the sweater placement mechanism (6) are also reset successively. At this time, the first motor (23) is stopped, and then a new defective sweater is placed in the sweater placement box (64), and the recovery operation is started again.

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