Full-automatic bobbin tail yarn removing machine

Abstract

The full-automatic yarn drum tail yarn removing machine comprises a tail yarn removing unit provided with a guide roller frame, a blocking rod, a thermal spray gun and a yarn suction pipe and an automatic feeding unit provided with a feeding box, a material guiding plate, a lifting mechanism, a material distributing rod and an ironing plate, an inclined roller way is arranged on the guide roller frame, and the blocking rod is arranged on the roller way in a liftable and penetrating mode, so that the tail yarn removing unit can be used for removing the tail yarn. The thermal spray gun is arranged above the cutting area in a left-right moving mode, the yarn suction pipe is arranged between the roller ways and corresponds to the cutting area, the thermal spray gun can spray hot air flow to fuse the tail yarn, and when the thickness of the tail yarn is increased, the yarn suction pipe can be used for adsorbing broken ends of the residual tail yarn and pulling the yarn barrel to enable the yarn barrel to be kept in the cutting area to wait for secondary fusing. The automatic yarn drum tail yarn removing device is suitable for batch yarn drum tail yarn removing operation, the material distributing rods are arranged on the material guiding plate in a penetrating mode in a liftable mode, the ironing plate is erected at the top ends of the two material distributing rods, the adjacent yarn drums on the material guiding plate can be separated through lifting of the material distributing rods, the tail yarn wound between the adjacent yarn drums can be ironed off through the ironing plate, and automatic feeding is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of textiles, and in particular relates to a fully automatic yarn removal machine for yarn bobbin tails. Background Art

[0002] The bobbin is the main component for winding yarn in the textile field. There are huge numbers of them and they generally need to be reused. However, there are usually tail yarns on the used bobbins, and the amount of tail yarns on different machines and different production processes is different. Before the bobbin is reused, the tail yarn needs to be removed. The traditional removal methods can be roughly divided into three categories: First, insert one end of the bobbin into a baffle with a round hole, press the tail yarn against the edge of the round hole, and then forcefully push the other end of the bobbin out. This solution requires the bobbin to have sufficient strength to resist the friction caused by the winding of the tail yarn. If the bobbin strength is insufficient, the tail yarn will not be removed. Or the tail yarn is wrapped too tightly, which may easily cause the yarn tube to deform or be damaged; secondly, the cutting depth of the tail yarn on the yarn tube is difficult to control by cutting off the tail yarn on the yarn tube with a blade, which may result in incomplete removal of the tail yarn or scratching of the yarn tube; thirdly, the tail yarn on the yarn tube is melted by blowing hot air with a hot air gun. This solution basically does not damage the yarn tube, but the hot air temperature, hot air intensity and other parameters need to be precisely controlled to ensure that the tail yarn is in a melted state, and the winding thickness of the tail yarn on each yarn tube is not the same, so the parameters need to be adjusted frequently, making it difficult to remove the tail yarn of the yarn tube in batches. At the same time, when collecting yarn tubes with tail yarns, they are usually piled up in the corner of the workshop or in the collection box. The tail yarns on adjacent yarn tubes are easy to entangle with each other. When they are taken out normally, there is a phenomenon of "sticking" of multiple yarn tubes, making it difficult to achieve automatic loading in the above removal method. Summary of the invention

[0003] The object of the present invention is to overcome one or more disadvantages in the prior art and to provide a fully automatic yarn removal machine for yarn bobbin tails.

[0004] To achieve the above-mentioned purpose, the product in the technical solution adopted by the present invention is a fully automatic yarn tail removal machine for yarn bobbins, including a yarn tail removal unit and an automatic feeding unit, the yarn tail removal unit including a guide roller frame, a blocking rod, a hot spray gun, and a yarn suction tube, the upper ends of the guide roller frame are provided with rollers for the yarn supply bobbins to roll on both sides, the rollers extend obliquely from the front upper direction to the rear lower direction, the blocking rod can be lifted and passed through the rollers, when the blocking rod is raised, the yarn bobbins on the rollers can be blocked in the cutting area in front of the blocking rod, the hot spray gun can be moved left and right and is arranged on the cutting area Above the cutting area, the heat spray gun is used to spray hot air downward to melt the tail yarn on the yarn drum located in the cutting area, the yarn suction tube is located between the rollers and lower than the rollers, the yarn suction tube is arranged corresponding to the cutting area, the upper opening of the yarn suction tube extends from the rollers on one side to the other side, and the lower opening of the yarn suction tube is connected to a vacuum, when the heat spray gun fails to melt all the tail yarns on the yarn drum during the initial movement, the broken ends of the tail yarns remaining on the yarn drum are absorbed by the yarn suction tube, and the yarn drum is pulled to keep it in the cutting area waiting for secondary melting;

[0005] The automatic feeding unit includes a feeding box, a guide plate, a lifting mechanism, a dividing rod, and an ironing plate. The feeding box is used to store yarn tubes with tail yarns, and its top is open to form an opening. The guide plate extends obliquely from the upper front to the lower rear, and the front end of the guide plate is connected to the front edge of the opening, and the rear end of the guide plate is connected to the roller. The lifting mechanism is arranged in the feeding box, and is used to lift the yarn tubes in the feeding box one by one onto the guide plate. There are two dividing rods, which are arranged near the two side edges of the guide plate. The dividing rods can be lifted and lowered on the guide plate, and the ironing plate is mounted on the top of the two dividing rods. When the dividing rods are lifted and lowered, they can separate the adjacent yarn tubes on the guide plate, so that they can roll to the roller in sequence. During this process, the ironing plate is energized and heated to cut the tail yarn wrapped between the two adjacent yarn tubes.

[0006] Preferably, the inclination angle of the roller is 15 to 25 degrees, and the roller includes a first support plate for supporting the outer circumferential surface of both ends of the yarn tube and a second support plate for leveling the two ends of the yarn tube, and the second support plate is vertically connected to the side of the first support plate.

[0007] Preferably, there are two blocking rods, which are respectively passed through the two rollers, and the bottoms of the two blocking rods are connected with T-shaped struts, which extend in the vertical direction and are located below the rollers, and the bottoms of the T-shaped struts are connected to the first driving mechanism that drives the blocking rod to rise and fall through the first transmission plate, and the first driving mechanism is fixed to one side of the guide roller frame.

[0008] Further preferably, the tail yarn removing unit also includes a material storage plate which is liftably arranged in front of the cutting area, the material storage plate and the blocking rod are lifted and lowered synchronously, the rear end of the material guide plate is connected to the roller through the material storage plate, the yarn tube flowing out of the material guide plate rolls onto the material storage plate, and is transferred to the cutting area on the roller by lifting the material storage plate.

[0009] Further preferably, the storage plate extends in the left-right direction, and its two ends protrude upward to form a support platform, and the upper end surface of the support platform extends obliquely from the upper front to the lower rear, and the inclination degree of the upper end surface of the support platform is the same as the inclination degree of the roller.

[0010] Preferably, the thermal spray gun is arranged on an up-and-down moving mechanism, and the up-and-down moving mechanism is connected to the guide roller frame through a left-and-right moving mechanism, so that the thermal spray gun can move left-and-right relative to the cutting area, and can move left-and-right relative to the cutting area.

[0011] Preferably, the projection of the upper opening in the up-down direction is rectangular, and the width of the upper opening in the front-back direction is one-half to two-thirds of the diameter of the yarn tube.

[0012] Preferably, the tail yarn removing unit further comprises a box for supporting the guide roller frame and the yarn suction tube, the interior of the box is hollow and communicated with the lower opening of the yarn suction tube, and the box is provided with a vacuum pump for maintaining negative pressure inside the box.

[0013] Preferably, the loading box is arranged in front of the guide roller frame, and the bottom of the loading box is provided with a bottom plate which extends obliquely from the upper front to the lower rear, and the front edge of the bottom plate is connected to the inner wall of the loading box.

[0014] Further preferably, a notch is provided at the rear of the base plate, and the lifting mechanisms are symmetrically distributed on the left and right sides of the notch.

[0015] Further preferably, the lifting mechanism includes a lifting block whose upper end surface extends obliquely from the upper front to the lower rear, the lifting block is divided into a fixed block and a movable block, the movable block can be raised and lowered, the movable block and the fixed block are staggered, and the lifting blocks located at the front and rear are both movable blocks.

[0016] Further preferably, the inclination of the upper end surface of the lifting block, the inclination of the bottom plate and the inclination of the roller are the same, and the inclination of the guide plate is smaller than the inclination of the roller.

[0017] Further preferably, the movable block and the material dividing rod are raised and lowered asynchronously.

[0018] Further preferably, the lower ends of all the movable blocks are connected to the same connecting plate, the bottom of the connecting plate is connected to a first extension rod extending vertically downward, the bottoms of the two dividing rods are connected to a cross beam, the cross beam is located below the material guide plate, the bottom of the cross beam is connected to a second extension rod extending vertically downward, the lower end of the second extension rod is connected to the lower end of the first extension rod through a transmission plate, and the transmission plate is rotatably arranged to enable the movable block and the dividing rod to rise and fall asynchronously.

[0019] Further preferably, the automatic loading unit also includes a support frame for supporting the loading box, and a second driving mechanism for driving the first extension rod to lift and lower, the transmission plate is rotatably arranged on the support frame, the rotation axis of the transmission plate extends in the left and right directions, and the second driving mechanism is fixed to the side wall of the support frame.

[0020] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0021] 1. Rollers for the yarn supply bobbin are arranged on both sides of the upper end of the guide roller frame, so that the rollers extend obliquely from the upper front to the lower rear, and the blocking rod is raised and lowered on the rollers, so that the hot spray gun can be moved left and right above the cutting area, and the yarn suction tube is located between the rollers and arranged corresponding to the cutting area, so that the upper opening extends from one side of the roller to the other side, and the upper opening is connected to a vacuum. When the blocking rod is raised, the yarn bobbin on the roller can be blocked in the cutting area, and the hot spray gun can be moved to remove the tail yarn. When the thickness of the tail yarn increases and fails to be completely melted, the yarn suction tube can be used to absorb the broken ends of the remaining tail yarn on the yarn bobbin, and the yarn bobbin is pulled to keep it in the cutting area waiting for secondary melting. There is no need to adjust parameters frequently, which is particularly suitable for batch removal of the tail yarn of the yarn bobbin.

[0022] 2. By making the guide plate extend obliquely from the upper front to the lower rear, so that the front end is connected to the front edge of the opening of the loading box, and the rear end is connected to the roller, the lifting mechanism is arranged in the loading box, and the yarn tubes in the loading box are lifted one by one onto the guide plate by the lifting mechanism, so that there are two dividing rods and they are arranged close to the two sides of the guide plate, so that the dividing rods can be lifted and lowered on the guide plate, and the ironing plate is set on the top of the two dividing rods. The adjacent yarn tubes on the guide plate can be separated by the lifting of the dividing rods, so that they can be rolled onto the roller one by one in sequence, and the tail yarns entangled between the adjacent yarn tubes can be cut by heating the ironing plate to avoid "sticking" and realize automatic loading. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 , Figure 2 It is a three-dimensional schematic diagram of a preferred embodiment of the present invention.

[0024] Figure 3 yes Figure 1 Schematic top view of .

[0025] Figure 4 yes Figure 3 A three-dimensional enlarged schematic diagram of the middle guide roller frame.

[0026] Figure 5 yes Figure 3 Schematic cross-sectional view along the AA direction.

[0027] Figure 6 yes Figure 3 Schematic cross-sectional view along the BB direction.

[0028] Among them: 1. Tail yarn removal unit; 2. Automatic feeding unit; 10. Guide roller frame; 11. Roller; 111. First support plate; 112. Second support plate; 12. First linear bearing; 13. First transmission plate; 14. First driving mechanism; 15. Storage plate; 151. Support platform; 152. Connecting rod; 16. Second linear bearing; 20. Blocking rod; 21. T-shaped support rod; 30. Hot spray gun; 31. Up and down moving mechanism; 32. Left and right moving mechanism; 40. The yarn suction tube; 41. the first opening; 42. the second opening; 43. the box body; 44. the vacuum pump; 50. the loading box; 51. the opening; 52. the bottom plate; 53. the notch; 54. the supporting frame; 55. the second driving mechanism; 56. the third transmission plate; 60. the guide plate; 71. the fixed block; 72. the movable block; 73. the connecting plate; 731. the first extension rod; 80. the material dividing rod; 81. the cross beam; 811. the second extension rod; 82. the second transmission plate; 90. the ironing plate. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art.

[0030] like Figures 1 to 6As shown, the fully automatic tail yarn removal machine provided by the present invention comprises a tail yarn removal unit 1 and an automatic feeding unit 2, wherein the tail yarn removal unit 1 comprises a guide roller frame 10, a blocking rod 20, a hot spray gun 30, and a yarn suction tube 40, and rollers 11 for rolling the yarn supply tube are arranged on both sides of the upper end of the guide roller frame 10, and the rollers 11 extend obliquely from the upper front to the lower rear, and the inclination angle of the rollers 11 is 15 to 25 degrees (the angle between the plane where the rollers 11 are located and the horizontal plane), so that the yarn tube can roll spontaneously along the rollers 11 under the action of its own weight, specifically The roller 11 includes a first support plate 111 for supporting the outer circumferential surfaces of both ends of the yarn tube and a second support plate 112 for leveling the two ends of the yarn tube, and the second support plate 112 is vertically connected to the outer side of the first support plate 111; the blocking rod 20 can be lifted and passed through the roller 11, and there are two blocking rods 20, which are respectively passed through the first support plates 111 of the two rollers 11, and the blocking rod 20 divides the area on the roller 10 into a cutting area located in front of the blocking rod 20 and a rolling area located behind the blocking rod 20. When the blocking rod 20 is raised, the yarn tube rolling down from the top of the roller 10 can be blocked in the cutting zone. When the blocking rod 20 is lowered, the yarn tube in the cutting zone can smoothly roll to the rolling zone and finally roll out of the roller 10. The hot spray gun 30 is arranged above the cutting zone and can be moved left and right. The hot spray gun 30 is used to spray a hot air flow downward to melt the tail yarn on the yarn tube in the cutting zone. The yarn suction tube 40 is located between the rollers 11 on both sides and is lower than the rollers 11. The yarn suction tube 40 is arranged corresponding to the cutting zone. The correspondence refers to the left and right directions. The upper opening 41 of the yarn suction tube 40 extends from the roller 11 on one side to the other side so as to absorb the tail yarn melted from the cutting area. The lower opening 42 of the yarn suction tube 40 is smaller than the upper opening 41, so that the yarn suction tube 40 is trumpet-shaped. The lower opening 42 of the yarn suction tube 40 is connected to a vacuum (normally open). When the hot spray gun 30 fails to melt all the tail yarns on the yarn tube in the initial movement, the broken ends of the tail yarn remaining on the yarn tube are absorbed by the yarn suction tube 40, forming a pulling force, pulling the yarn tube to keep it in the cutting area waiting for the hot spray gun 30 to move again for secondary melting.The automatic feeding unit 2 includes a feeding box 50, a guide plate 60, a lifting mechanism, a dividing rod 80, and an ironing plate 90. The feeding box 50 is used to store yarn tubes with tail yarns, and its top is open to form an opening 51. The guide plate 60 extends obliquely from the upper front to the lower rear, and the front end of the guide plate 60 is connected to the front edge of the opening 51. The rear end of the guide plate 60 is connected to the roller 11. The lifting mechanism is arranged in the feeding box 50, and is used to lift the yarn tubes in the feeding box 50 one by one onto the guide plate 60. There are two dividing rods 80, which are arranged near the two side edges of the guide plate 60. The dividing rods 80 can be lifted and lowered through the guide plate 60 and lifted to the guide plate by the lifting mechanism. The yarn tubes on the plate 60 can roll backward and downward along the guide plate 60 under the action of their own weight. When the dividing rod 80 is raised, the yarn tubes in front of the dividing rod 80 can be blocked so that they cannot continue to roll backward and downward. When the dividing rod 80 is lowered, the yarn tubes on the guide plate 60 can smoothly roll backward and downward. Then, when the dividing rod 80 is raised or lowered, the adjacent yarn tubes corresponding to the dividing rod 80 on the guide plate 60 can be separated and rolled to the roller 11 in sequence. The ironing plate 90 (electric heating plate) is mounted on the top of the two dividing rods 80. When the dividing rod 80 moves up and down to separate the adjacent yarn tubes, the ironing plate 90 is powered on to heat and cut the tail yarns wound between the two adjacent yarn tubes. ;

[0031] The advantages of this setting are:

[0032] 1. The hot spray gun can be moved left and right to melt the tail yarn on the yarn bobbin. When the thickness of the tail yarn increases and fails to be completely melted, the yarn suction tube can be used to absorb the broken ends of the remaining tail yarn on the yarn bobbin, and the yarn bobbin can be pulled to keep it in the cutting area waiting for the second melting. There is no need to adjust the parameters frequently, which is particularly suitable for batch removal of the tail yarn of the yarn bobbin.

[0033] 2. It can separate the adjacent yarn tubes on the guide plate by lifting the dividing rod, so that they can roll onto the roller in sequence one by one. In the process of the dividing rod separating the adjacent yarn tubes, the ironing plate can be powered on to heat up and cut off the tail yarns entangled between the adjacent yarn tubes to avoid "sticking" and realize automatic feeding.

[0034] To ensure that the two blocking rods 20 are lifted synchronously and smoothly, in the present embodiment, the bottoms of the two blocking rods 20 are commonly connected to the T-shaped support rod 21, the T-shaped support rod 21 is located below the roller table 11, and the vertical rod of the T-shaped support rod 21 extends in the vertical direction. A first linear bearing 12 is fixedly provided on the guide roller frame 10, and the lower end of the vertical rod of the T-shaped support rod 21 can be movably arranged in the first linear bearing 12 up and down. The bottom of the vertical rod of the T-shaped support rod 21 is connected to the first driving mechanism 14 that drives the blocking rod 20 to lift and lower through the first transmission plate 13. The first driving mechanism 14 is fixedly arranged on one side of the guide roller frame 10. The first driving mechanism 14 is a combination of a stepping motor and a screw pair to facilitate amplitude modulation and speed regulation. In the present embodiment, the middle part of the first transmission plate 13 is rotatably connected to the guide roller frame 10, and its rotation axis extends horizontally in the front-rear direction. Its two end portions are respectively rotatably and slidably connected with the nut of the screw pair and the lower end of the vertical rod of the T-shaped support rod 21 to form a lever structure, thereby further improving the accuracy of amplitude modulation and speed regulation.

[0035] To avoid material accumulation, in the present embodiment, the tail yarn removal unit 1 further comprises a material storage plate 15 which is liftably arranged in front of the cutting area, and the material storage plate 15 is lifted and lowered synchronously with the blocking rod 20. The synchronous lifting means that when the blocking rod 20 rises, the material storage plate 15 also rises, and when the blocking rod 20 falls, the material storage plate 15 also falls, and the lifting amplitude of the material storage plate 15 is the same as the lifting amplitude of the blocking rod 20. The rear end of the material guide plate 60 is connected to the roller 11 through the material storage plate 15, and the yarn tube flowing out of the material guide plate 60 rolls onto the material storage plate 15, and is transferred to the cutting area on the roller 11 by the lifting of the material storage plate 15. Specifically, when the material storage plate 15 falls to the limit position, the upper end surface of the material storage plate 15 Not higher than the rear edge of the guide plate 60, when the storage plate 15 rises to the limit position, the upper end surface of the storage plate 15 is not lower than the front edge of the roller 11, further, the storage plate 15 extends in the left and right directions, and its left and right ends protrude upward to form a support platform 151, and the upper end surface of the support platform 151 extends obliquely from the front upper direction to the rear lower direction, and the inclination degree of the upper end surface of the support platform 151 is the same as the inclination degree of the roller 11, when the storage plate 15 rises to the limit position, the upper end surface of the support platform 151 and the upper end surface of the first support plate 111 on the roller 11 are located on the same inclined plane, and when the storage plate 15 descends to the limit position, the front edge of the upper end surface of the support platform 151 is flush with the rear edge of the guide plate 60.

[0036] In order to achieve the synchronous lifting and lowering of the storage plate 15 and the blocking rod 20, in the present embodiment, a connecting rod 152 extending vertically downward is connected to the bottom center of the storage plate 15, and the lower end of the connecting rod 152 is also rotatably and slidably connected to the end of the first transmission plate 13. Specifically, the end portion of the first transmission plate 13 away from the first driving mechanism 14 has two branches, one of which is rotatably and slidably connected to the lower end of the connecting rod 152, and the other branch is rotatably and slidably connected to the bottom of the vertical rod of the T-shaped support rod 21. In order to ensure the smooth lifting and lowering of the connecting rod 152, a second linear bearing 16 is also provided on the guide roller frame 10, and the lower end of the connecting rod 152 can be slidably inserted into the second linear bearing 16 up and down.

[0037] In order to facilitate the adjustment of the effect of the hot air flow sprayed by the hot spray gun 30, in this embodiment, the hot spray gun 30 is arranged on an up and down moving mechanism 31, and the up and down moving mechanism 31 is connected to the guide roller frame 10 through a left and right moving mechanism 32, so that the hot spray gun 30 can move left and right relative to the cutting area, and can also move left and right relative to the cutting area.

[0038] To ensure the yarn suction effect of the yarn suction tube 40, in the present embodiment, the projection of the upper opening 41 of the yarn suction tube 40 in the up and down directions is rectangular, and the width of the upper opening 41 in the front and back directions is one half to two thirds of the diameter of the yarn tube. At the same time, the plane where the upper opening 41 of the yarn suction tube 40 is located is parallel to the plane where the first support plate 111 of the roller 11 is located, and the distance between the plane where the upper opening 41 of the yarn suction tube 40 is located and the plane where the first support plate 111 is located is 1.1 to 2.0 times the thickness of the tail yarn layer on the yarn tube. Furthermore, the tail yarn removing unit 1 also includes a box body 43 for supporting the guide roller frame 10 and the yarn suction tube 40. The interior of the box body 43 is hollow and connected to the lower opening 42 of the yarn suction tube 40. The box body 43 is provided with a vacuum pump 44 for maintaining a negative pressure inside the box body 43.

[0039] To facilitate the lifting of the yarn bobbins in the loading box 50 and the setting of the lifting mechanism, in the present embodiment, the loading box 50 is arranged in front of the guide roller frame 10, and the bottom of the loading box 50 is provided with a bottom plate 52 which extends obliquely from the upper front to the lower rear, and the inclination degree of the bottom plate 52 is the same as the inclination degree of the roller 11. The front edge of the bottom plate 52 is connected to the inner wall of the loading box 50, and a notch 53 is provided at the rear of the bottom plate 52, and the lifting mechanism is symmetrically distributed on the left and right sides of the notch 53.

[0040] The lifting mechanism is a step-type lifting mechanism. Specifically, the lifting mechanism includes a lifting block whose upper end surface extends obliquely from the upper front to the lower rear. The lifting block is divided into a fixed block 71 and a movable block 72. The fixed block 71 is fixed to the inner wall surface of the loading box 50, and the movable block 72 can be raised and lowered. The movable block 72 is staggered with the fixed block 71. The lifting blocks located at the front and rear are both movable blocks 72. Furthermore, the inclination of the upper end surface of the lifting block, the inclination of the bottom plate 52 and the inclination of the roller 11 are all the same, and the inclination of the guide plate 60 is smaller than the inclination of the roller 11. There are movable blocks 72 that rise and fall synchronously. When they fall to the extreme position, the front edge of the upper end face of the frontmost movable block 72 is flush with the rear edge of the bottom plate 52, and the upper end face of any movable block 72 is not higher than the upper end face of the fixed block 71 in front of it. When they rise to the extreme position, the rear edge of the upper end face of the rearmost movable block 72 is flush with the front edge of the guide plate 60, and the upper end face of any movable block 72 is not lower than the upper end face of the fixed block 71 in front of it. In this way, through the synchronous lifting of all movable blocks 72, the yarn bobbins in the loading box 50 can be lifted onto the guide plate 60 in sequence.

[0041] In order to achieve synchronous lifting of all movable blocks 72, further, the lower ends of all movable blocks 72 are connected to the same connecting plate 73, and the bottom of the connecting plate 73 is connected to a first extension rod 731 extending vertically downward. The synchronous lifting of all movable blocks 72 can be achieved by driving the first extension rod 731 to rise and fall.

[0042] Furthermore, the movable block 72 and the dividing rod 80 are raised and lowered asynchronously, which means that when the dividing rod 80 rises, the movable block 72 falls, and when the dividing rod 80 falls, the movable block 72 rises, and the lifting amplitude of the movable block 72 can be the same as or different from the lifting amplitude of the dividing rod 80.

[0043] To achieve the asynchronous lifting, in the present embodiment, the bottom of the two dividing rods 80 is connected with a cross beam 81, and the cross beam 81 is located below the material guide plate 60. The bottom of the cross beam 81 is connected with a second extension rod 811 extending vertically downward. The lower end of the second extension rod 811 is connected to the lower end of the first extension rod 731 through the second transmission plate 82. The second transmission plate 82 is rotatably arranged, and its two ends are respectively rotatably and slidingly connected with the lower end of the first extension rod 731 and the lower end of the second extension rod 811 to form a lever structure, so that the movable block 72 and the dividing rod 80 can be lifted and lowered asynchronously.

[0044] To facilitate setting and driving, the automatic loading unit 2 further includes a support frame 54 for supporting the loading box 50, and a second driving mechanism 55 for driving the first extension rod 731 to rise and fall. The second transmission plate 82 is rotatably arranged on the support frame 54, and the rotation axis of the second transmission plate 82 extends along the left and right directions. The second driving mechanism 55 drives the bottom of the first extension rod 731 to rise and fall through the third transmission plate 56. The second driving mechanism 55 is fixed to the side wall of the support frame 54. The second driving mechanism 55 is also realized by a combination of a stepping motor and a screw pair to achieve precision control.

[0045] It should be noted that, in this embodiment, the rotational sliding connection can be achieved by the cooperation of the pin shaft and the waist-shaped hole, which is the existing technology and will not be described in detail here.

[0046] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A fully automatic yarn tail removal machine for yarn bobbins, comprising a yarn tail removal unit and an automatic feeding unit, characterized in that: The tail yarn removing unit comprises a guide roller frame, a blocking rod, a hot spray gun and a yarn suction tube, wherein rollers for supplying yarn to roll are arranged on both sides of the upper end of the guide roller frame, and the rollers extend obliquely from the upper front to the lower rear, and the blocking rod can be lifted and passed through the rollers. When the blocking rod is raised, the yarn drum on the rollers can be blocked in the cutting area in front of the blocking rod. The hot spray gun can be movably arranged above the cutting area left and right, and the hot spray gun is used for spraying hot air flow downward to melt the tail yarn on the yarn drum located in the cutting area. The yarn suction tube is located between the rollers and lower than the rollers, and the yarn suction tube is arranged corresponding to the cutting area. The upper opening of the yarn suction tube extends from the rollers on one side to the other side, and the lower opening of the yarn suction tube is connected with a vacuum. When the hot spray gun fails to melt all the tail yarns on the yarn drum in the first movement, the broken ends of the remaining tail yarns on the yarn drum are adsorbed by the yarn suction tube, and the yarn drum is pulled to keep it in the cutting area waiting for secondary melting. The automatic feeding unit includes a feeding box, a guide plate, a lifting mechanism, a dividing rod, and an ironing plate. The feeding box is used to store yarn tubes with tail yarns, and its top is open to form an opening. The guide plate extends obliquely from the upper front to the lower rear, and the front end of the guide plate is connected to the front edge of the opening, and the rear end of the guide plate is connected to the roller. The lifting mechanism is arranged in the feeding box, and is used to lift the yarn tubes in the feeding box one by one onto the guide plate. There are two dividing rods, which are arranged near the two side edges of the guide plate. The dividing rods can be lifted and lowered on the guide plate, and the ironing plate is mounted on the top of the two dividing rods. When the dividing rods are lifted and lowered, they can separate the adjacent yarn tubes on the guide plate, so that they can roll to the roller in sequence. During this process, the ironing plate is energized and heated to cut the tail yarn wrapped between the two adjacent yarn tubes.

2. The fully automatic yarn removal machine for yarn bobbin tails according to claim 1 is characterized in that: The inclination angle of the roller is 15 to 25 degrees. The roller includes a first support plate for supporting the outer circumferential surface of both ends of the yarn tube and a second support plate for leveling the two ends of the yarn tube. The second support plate is vertically connected to the side of the first support plate.

3. The fully automatic yarn removal machine for yarn bobbin tails according to claim 1 is characterized in that: There are two blocking rods, which are respectively passed through the two rollers. The bottoms of the two blocking rods are connected with T-shaped struts, which extend in the vertical direction and are located below the rollers. The bottoms of the T-shaped struts are connected to the first driving mechanism that drives the blocking rod to rise and fall through the first transmission plate. The first driving mechanism is fixed on one side of the guide roller frame.

4. The fully automatic yarn removal machine for yarn bobbin tails according to claim 3 is characterized in that: The tail yarn removing unit also includes a material storage plate which is liftably arranged in front of the cutting area. The material storage plate and the blocking rod are lifted and lowered synchronously. The rear end of the material guide plate is connected to the roller through the material storage plate. The yarn tube flowing out of the material guide plate rolls onto the material storage plate and is transferred to the cutting area on the roller by lifting the material storage plate.

5. The fully automatic yarn removal machine for yarn bobbin tails according to claim 4 is characterized in that: The material storage plate extends in the left-right direction, and its two ends protrude upward to form a support platform. The upper end surface of the support platform extends obliquely from the upper front to the lower rear, and the inclination degree of the upper end surface of the support platform is the same as the inclination degree of the roller.

6. The fully automatic yarn removal machine for yarn bobbin tails according to claim 1 is characterized in that: The thermal spray gun is arranged on an up-and-down moving mechanism, and the up-and-down moving mechanism is connected to the guide roller frame through a left-and-right moving mechanism, so that the thermal spray gun can move left-and-right relative to the cutting area, and can also move left-and-right relative to the cutting area.

7. The fully automatic yarn tail removal machine according to claim 1 is characterized in that: The projection of the upper opening in the up-down direction is rectangular, and the width of the upper opening in the front-back direction is one-half to two-thirds of the diameter of the yarn tube.

8. The fully automatic yarn removal machine for yarn bobbin tails according to claim 1 is characterized by: The tail yarn removing unit also includes a box body for supporting the guide roller frame and the yarn suction tube, the interior of the box body is hollow and communicated with the lower opening of the yarn suction tube, and the box body is provided with a vacuum pump for maintaining negative pressure inside the box body.

9. The fully automatic yarn removal machine for yarn bobbin tails according to claim 1 is characterized in that: The feeding box is arranged in front of the guide roller frame, and the bottom of the feeding box is provided with a bottom plate which extends obliquely from the upper front to the lower rear, and the front edge of the bottom plate is connected to the inner wall of the feeding box.

10. The fully automatic yarn removal machine for yarn bobbin tails according to claim 9, characterized in that: A notch is arranged at the rear of the bottom plate, and the lifting mechanisms are symmetrically distributed on the left and right sides of the notch.

11. The fully automatic yarn removal machine for yarn bobbin tails according to claim 9, characterized in that: The lifting mechanism includes a lifting block whose upper end surface extends obliquely from the upper front to the lower rear. The lifting block is divided into a fixed block and a movable block. The movable block can be raised and lowered. The movable block is staggered with the fixed block. The lifting blocks located at the front and rear are both movable blocks.

12. The fully automatic yarn removal machine for yarn bobbin tails according to claim 11, characterized in that: The inclination degree of the upper end surface of the lifting block, the inclination degree of the bottom plate and the inclination degree of the roller are the same, and the inclination degree of the guide plate is smaller than the inclination degree of the roller.

13. The fully automatic yarn removal machine for yarn bobbin tails according to claim 11, characterized in that: The movable block and the material dividing rod are asynchronously lifted and lowered.

14. The fully automatic yarn removal machine for yarn bobbin tails according to claim 13, characterized in that: The lower ends of all the movable blocks are connected to the same connecting plate, the bottom of the connecting plate is connected to a first extension rod extending vertically downward, the bottoms of the two material dividing rods are connected to a cross beam, the cross beam is located below the material guide plate, the bottom of the cross beam is connected to a second extension rod extending vertically downward, the lower end of the second extension rod is connected to the lower end of the first extension rod through a transmission plate, and the transmission plate is rotatably arranged to enable the movable block and the material dividing rod to rise and fall asynchronously.

15. The fully automatic yarn removal machine for yarn bobbin tails according to claim 14, characterized in that: The automatic loading unit also includes a support frame for supporting the loading box and a second driving mechanism for driving the first extension rod to rise and fall. The transmission plate is rotatably arranged on the support frame, and the rotation axis of the transmission plate extends in the left and right directions. The second driving mechanism is fixed to the side wall of the support frame.

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