Automatic bobbin changing device for roving frame
Through the combined structure of the rotating barrel, lifting bracket and sliding assembly, the shaking and throwing problems of the yarn pipe during the barrel change process are solved, safe and stable replacement of the yarn pipe and energy consumption optimization are achieved, and production continuity and equipment stability are improved.
Patent Information
- Application Number
- CN202311130720.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-08-31
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2043-08-31
AI Technical Summary
The existing automatic cylinder changing device of the roving machine is prone to loosening the cylinder connection, shaking and throwing out of the yarn pipe during the replacement of the yarn pipe, resulting in failure of the cylinder replacement, and high energy consumption and high equipment cost.
The combined structure of rotating barrel, lifting bracket, sliding assembly and flip assembly is adopted. Through the synergy of lifting, rotating and tensioning arms, the stable replacement of the yarn tube is achieved, avoiding shaking and throwing out of the yarn tube, and optimizing the transmission structure to reduce energy consumption.
It realizes safe and stable replacement of yarn pipes, reduces equipment failure rate and energy consumption, and improves production continuity and equipment stability.
Smart Images
Figure CN117262901B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of roving production, in particular to an automatic bobbin changing device for a roving frame. Background Art
[0002] A roving frame is a machine that converts fiber strips into roving and winds them onto empty bobbins. Currently, once a bobbin is full, it is transported to the next process step by a bobbin conveyor system. During this process, an automatic bobbin changer within the bobbin conveyor system automatically switches between empty and full bobbins, switching between the two conveyor lines that feed into and out of the roving frame. This allows for continuous roving production.
[0003] The automatic bobbin changer is equipped with a common vertical cylinder that allows for vertical and rotational movement. It can also be moved horizontally via lateral guide cylinders. The changer can be adjusted horizontally based on the spacing between the slide rails and the bobbin changer, and the bobbin changer can be moved up and down within the vertical guide cylinders. Conical plugs secured within the lateral guide cylinders overlap the loaded bobbins on the roving frame slides on one side and the empty bobbins on the ring spinning frame on the other. The bobbin changer's vertical movement allows the installation and removal of loaded and empty bobbins from the two conveyor lines. The bobbin changer can be replaced by rotating it 180 degrees clockwise or counterclockwise around its vertical axis. However, during the actual bobbin changing process of the above-mentioned automatic bobbin changer, the air tubes connected to the various cylinders are not only prone to winding during the bobbin changing process, but also the continuous bobbin changing action will easily loosen the connection between the air tube and the cylinder, resulting in the cylinder being unable to accurately perform each bobbin changing action. At the same time, since the bobbin changer only fixes the bottom of the bobbin by a conical plug during the bobbin changing process, the bobbin is not only prone to shaking and wearing the bottom of the bobbin as it rotates with the bobbin changer, but also if the bobbin changer rotates too fast, the bobbin will be thrown out, resulting in bobbin changing failure. Summary of the Invention
[0004] The object of the present invention is to provide an automatic bobbin changing device for a roving frame, which has the effect of safely and stably changing bobbins.
[0005] Base comprises support, castor, and frame upper is provided with guide rail, and support and conveyer frames movable end contact site are provided with recoil spring, and castor is arranged on the pin of base bottom four, to carry mobile handler location.
[0006] By adopting the above technical solution, when the full bobbin and the empty bobbin hung by the hangers of the two conveying lines move respectively to just above the two bobbin changing seats on the lifting bracket, the lifting assembly first drives the lifting bracket to rise, so that the bobbin changing seats on the two sliders 1 respectively pass through the lower ends of the full bobbin and the empty bobbin, and simultaneously push both to a certain height, thereby releasing the connection between the hangers and the upper ends of the full bobbin and the empty bobbin. Then the lifting assembly drives the lifting bracket to descend, so that the full bobbin and the empty bobbin respectively move to the bottom of the conveying line, and at the same time the sliding assembly drives the two sleeves 1 to approach the rotating drum respectively. Since the sliding drum on the sleeve 1 slides vertically through the slider 1 and the bobbin changing seat, the sliding drum will not only continue to extend and penetrate into the bobbin, but also pass through the slider 1 and the bobbin changing seat, bringing the full bobbin and the empty bobbin to the middle rotating drum at the same time, so When the lifting bracket is rotated, the lifting assembly and the sliding assembly will rise and unfold the fully loaded bobbin and the empty bobbin respectively, so that the fully loaded bobbin and the empty bobbin are exchanged and hung on the two conveyor lines.
[0007] The present invention is further configured as follows: the lifting bracket includes a sliding sleeve 2 slidably mounted on the rotating cylinder, two pairs of guide rods respectively fixed on both sides of the sliding sleeve 2, the sliding block 1 is located between the pair of guide rods, and sliding sleeves 3 slidably mounted on the guide rods are fixedly installed on both sides of the sliding block 1.
[0008] By adopting the above technical solution, it is possible to ensure that the lifting bracket and the sliding block can move stably on the rotating cylinder.
[0009] The present invention is further configured as follows: the rotating assembly includes a driven ring gear fixed to a rotating cylinder and close to its lower end, a worm gear reduction motor fixedly mounted on a frame, and a driving gear 1 fixedly mounted with an output end of the worm gear reduction motor, and the driving gear 1 and the driven ring gear are engaged with each other.
[0010] By adopting the above technical solution, when it is necessary to drive the rotating cylinder to rotate, the worm gear reduction motor will first drive the driving gear to rotate, then the driving gear will engage and drive the driven ring gear to rotate, and finally the driven ring gear will drive the rotating cylinder and the lifting bracket to rotate together.
[0011] The present invention is further configured as follows: the frame is fixedly provided with a lower support plate at the lower end of the rotating cylinder, a limiting column 1 is fixedly provided on the top of the lower support plate and penetrates into the interior of the rotating cylinder, the limiting column 1 is coaxial with the rotating cylinder and has a diameter smaller than the inner ring of the rotating cylinder, a bearing 1 is installed between the rotating cylinder and the limiting column 1, and the two are respectively fixedly connected to the inner ring and outer ring of the bearing 1, the worm gear reduction motor is located at the bottom of the lower support plate, and the output end passes through the lower support plate and is fixedly connected to the driving gear 1.
[0012] By adopting the above technical solution, the rotation stability of the rotating drum can be further guaranteed without affecting the normal operation of the rotating assembly.
[0013] The present invention is further configured as follows: the lifting assembly includes a pair of flanges respectively fixed to the upper and lower ends of the rotating cylinder, a plurality of screws whose ends are respectively rotatably connected to the two flanges and parallel to the rotating cylinder, a plurality of nuts fixedly mounted on the second sleeve and threadedly connected to each screw, a plurality of driven gears fixed to the upper ends of the screws, a servo motor fixedly mounted on the frame and located at the top of the rotating cylinder, and a driving gear second fixedly mounted on the output end of the servo motor. All the screws evenly surround the rotating cylinder, and the upper ends of the screws respectively rotate to pass through the flanges at the upper end of the rotating cylinder. The driving gear second is located between the driven gears and is respectively meshed with each driven gear. The second sleeve is provided with a plurality of through holes for the screws to pass through, and the nut one is fixedly mounted in the through holes.
[0014] By adopting the above technical solution, when it is necessary to drive the lifting bracket to rise or fall, the servo motor will first drive the driving gear 2 to rotate, and then the driving gear 2 will engage and transmit the driven gear 1 to rotate, and then the driven gear 1 will drive the screw rod to rotate, and finally the nut 1 will drive the sleeve 2 to slide on the rotating cylinder under the rotation of the screw rod, thereby achieving the effect of driving the lifting bracket to rise or fall; when the rotating assembly drives the rotating cylinder to rotate, the driven gear 1 will automatically move and rotate around the driving gear 2, so as to avoid the servo motor rotating with the rotating cylinder, causing the servo motor's wires to get tangled and other problems. Although the screw rod still rotates to drive the nut and sleeve 2 up and down during this process, since the driven gear 1 rotates a small number of times and the subsequent servo motor can also adjust the height of the sleeve 2 accordingly, this effect can be ignored.
[0015] The present invention is further configured as follows: the frame is fixedly provided with an upper support plate at the upper end of the rotating cylinder, a limiting column 2 is fixedly installed at the bottom of the upper support plate, a protective cover is fixedly provided on the flange plate at the upper end of the rotating cylinder and surrounds the limiting column 2, and the inner ring diameter of the protective cover is larger than the limiting column 2, a bearing 2 is installed between the protective cover and the limiting column 1, and the two are fixedly connected to the inner ring and outer ring of the bearing 2 respectively, the driven gear and the driving gear 2 are in the protective cover, the servo motor is installed on the top of the upper support plate, and the output end passes through the upper support plate and is fixedly connected to the driving gear 2.
[0016] By adopting the above technical solution, not only the rotation stability of the rotating drum can be further guaranteed, but also the transmission safety of the driving gear 2 and the driven gear 1 in the lifting assembly can be protected.
[0017] The present invention is further configured as follows: the sliding assembly includes two sections of thread grooves opened on the rotating rod and rotating in opposite directions, a nut second fixedly mounted on the inner ring of the sliding sleeve and threadedly connected to the thread groove, a rotating shaft rotatably arranged in the rotating cylinder and one end rotating through the cylinder wall, a bevel gear first fixedly mounted on the rotating rod and located in the rotating cylinder, a bevel gear second fixedly mounted on the rotating shaft and located in the rotating cylinder, a rack fixedly mounted on the bottom of the sliding sleeve, and a driven gear second rotatably mounted on the rotating shaft and located outside the rotating cylinder, the bevel gear first and the bevel gear second meshing with each other, the rack and the driven gear second meshing with each other, and the two sections of the thread grooves are located on both sides of the rotating cylinder.
[0018] By adopting the above technical solution, when the lifting assembly drives the lifting bracket to rise and fall, the rack at the bottom of the sliding sleeve 2 will engage with the driven gear 2 to rotate during the lifting and lowering process of the lifting bracket. Then, the driven gear 2 will drive the bevel gear 2 to rotate through the rotating shaft, so that the bevel gear 2 engages with the bevel gear 1, and then the bevel gear 1 drives the rotating rod to rotate. Since the thread grooves on both sides of the rotating rod rotate in opposite directions, the two nuts 2 will respectively move along the rotating rod, driving the two sliding sleeves 1 to move in opposite directions, and then cooperate with the sliding cylinder to drive the lifting seat and the slider 1 to approach or move away from the rotating cylinder.
[0019] The present invention is further configured as follows: the flip assembly includes a long rod and a short rod sliding in the sliding cylinder, a connecting column connecting the upper end of the long rod and the lower end of the short rod, a spring installed between the bottom end of the sliding cylinder and the lower end of the long rod, a long hole second opened in the side wall of the sliding cylinder and close to its lower end, a sliding block second fixed to the side wall of the long rod and sliding in the long hole second, a connecting rod first hinged at one end at the upper end of the long hole second, and a connecting rod second hinged at both ends to the sliding block second and the other end of the connecting rod first, the tensioning arm is located between the long rod and the short rod, and the connecting column is located between the tensioning arm
[0020] By adopting the above technical solution, when the lifting assembly drives the lifting bracket to descend to a certain height, the long hole 2 at the bottom end of the sliding cylinder will penetrate into the interior of the lifting seat and the slider 1, and the connecting rod 1 and the connecting rod 2 in the long hole 2 will be unfolded and flattened into the long hole 2, and the long rod will compress the spring downward relative to the sliding cylinder. At the same time, the bottom of the long rod will move downward away from the right-angled groove at the lower end of the tensioning arm, thereby releasing the lock on the rotation of the tensioning arm. Then the long rod pulls the short rod downward through the connecting rod. Since the lower end of the short rod is provided with a chamfer 2 that can contact the side surface of the semi-circular cylindrical head at the upper end of the tensioning arm, during the downward movement of the short rod, all the tensioning arms will be pushed out of the long hole 1 and a certain flip will occur. The rear lifting assembly will drive the lifting bracket to rise to a certain height again, so that the long hole 2 at the bottom end of the sliding cylinder will exit the interior of the lifting seat and the slider 1. At the same time, the long rod will quickly push the long rod upward under the reaction of the spring. Because the tensioning arm must be flipped out of the long hole 1 at this time, and the lower ends of the right-angle groove and the chamfer 1 are flipped to just above the top of the long rod, the top of the long rod will further push the tensioning arm out of the long hole 1 during the upward movement of the long rod. Finally, when the upper end of the tensioning arm contacts the inner wall of the sand pipe, the long rod 1 will be restricted and cannot move further, and the tensioning arm will tighten and fix the inner wall of the sand pipe to ensure that the sand pipe can stably rotate with the rotating cylinder and the lifting bracket. When the lifting assembly drives the lifting bracket to rise to a certain height, the long hole 1 at the upper end of the sliding cylinder will penetrate into the interior of the lifting seat and the slider 1, and the tensioning arm that was previously flipped out of the long hole 1 will flip back to the long hole 1. At the same time, in this process, the right-angle groove at the lower end of the tensioning arm will be re-stuck on the top of the long rod, thereby locking the tensioning arm in the long hole 1.
[0021] The beneficial effects of the present invention are:
[0022] 1. The rotating drum, lifting bracket and rotating rod are respectively matched with the rotating assembly, lifting assembly, sliding assembly and other structures, which can not only realize the automatic bobbin changing actions such as lifting, sliding and rotating of the bobbin changer, but also cooperate with the tensioning arm and flip assembly to stably fix the bobbin on the bobbin changer, thereby reducing the risks of shaking and flying of the bobbin, thereby ensuring safe and stable replacement of the bobbin.
[0023] 2. Through the transmission structure of the screw rod, nut 1 connection structure, driving gear 2 and driven gear in the lifting assembly, not only can the sliding sleeve 1 be effectively controlled to slide up and down on the rotating drum to achieve the effect of driving the bobbin changing seat to lift the bobbin, but the structure also converts the rotation of the rotating drum into a movement in which the driven gear 1 moves around the driving gear 2 and rotates on its own, thereby avoiding the problem that the servo motor rotates with the rotating drum, causing the servo motor's wires to be entangled.
[0024] 3. Through the connection structure of the threaded groove on the rotating rod and the nut 2, the transmission structure of the rack and the driven gear 2, and the transmission structure of the bevel gear 1 and the bevel gear 2 in the sliding assembly, not only can the lifting movement of the lifting bracket be converted into the movement of the sliding sleeve 1, the slider 1 and the cylinder changing seat towards and away from the rotating cylinder to improve energy utilization, but also unnecessary wired drive equipment can be eliminated, thereby reducing the energy consumption and manufacturing cost of the device while effectively avoiding problems such as wire entanglement.
[0025] 4. Through the connection structure of the sliding cylinder, long rod and short rod in the flip assembly, the crank-connecting rod slider mechanism of connecting rod 2, connecting rod 3 and slider 2 can not only effectively realize the effect of automatically expanding and contracting the tensioning arm before and after the rotating bobbin action, but also can be indirectly controlled through the lifting assembly, bobbin changing seat and slider 1, thereby further improving the safety and stability of the device while saving wired equipment such as drive and control, thereby reducing the energy consumption and manufacturing cost of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;
[0028] Figure 2 This is a cross-sectional view of the structure of the rotating cylinder and the lifting bracket of the present invention;
[0029] Figure 3 yes Figure 1 A magnified view of point A;
[0030] Figure 4 This is a schematic diagram of the working of the flip assembly of the present invention controlling the tensioning arm to flip out the long hole 1;
[0031] Figure 5 This is a schematic diagram of the working of the flip assembly of the present invention controlling the tensioning arm to flip back to the elongated hole 1;
[0032] Figure 6 yes Figure 4 Enlarged view of point B;
[0033] Figure 7 yes Figure 4 Enlarged view of point C;
[0034] Figure 8 yes Figure 5 Enlarged view of point D;
[0035] In the figure, 1. frame; 11. lower support plate; 111. limit column 1; 112. bearing 1; 12. upper support plate; 121. limit column 2; 122. bearing 2; 2. rotating cylinder; 3. rotating assembly; 31. driven ring gear; 32. worm gear reduction motor; 33. driving gear 1; 4. lifting bracket; 41. sliding sleeve 2; 42. guide rod; 5. slider 1; 51. cylinder change seat; 52. sliding sleeve 3; 6. lifting assembly; 61. flange; 611. protective cover; 62. screw rod; 63. nut 1; 64. driven gear 1; 65. servo motor; 66. driving gear 2; 7. Rotating rod; 71. Slide sleeve 1; 72. Sliding cylinder; 721. Long hole 1; 722. Long hole 2; 73. Tensioning arm; 731. Right-angle groove; 732. Chamfer 1; 733. Semi-cylinder head; 8. Sliding assembly; 81. Threaded groove; 82. Nut 2; 83. Rotating shaft; 84. Bevel gear 1; 85. Bevel gear 2; 86. Rack; 87. Driven gear 2; 9. Flipping assembly; 91. Long rod; 92. Short rod; 92a. Chamfer 2; 93. Connecting column; 94. Spring; 95. Slider 2; 96. Connecting rod 1; 97. Connecting rod 2; 10. Bobbin. DETAILED DESCRIPTION
[0036] The technical solutions of the present invention will be described clearly and completely below with reference to specific embodiments. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.
[0037] Example: An automatic bobbin changing device for a roving frame, such as Figure 1-5 As shown, it includes a frame 1, a rotating drum 2 that rotates vertically on the frame 1, a rotating assembly 3 that drives the rotating drum 2 to rotate, a lifting bracket 4 that slides on the rotating drum 2, a lifting assembly 6 that drives the lifting bracket 4 to slide up and down on the rotating drum 2, a pair of sliders 5 that slide on the lifting bracket 4 and are respectively located on both sides of the rotating drum 2, a drum changing seat 51 fixed above the sliders 5, a rotating rod 7 that rotates horizontally and passes through the rotating drum 2 and is located parallel to the bottom of the lifting bracket 4, and a pair of sliding sleeves provided on the rotating rod 7 and are respectively located on both sides of the rotating drum 2 The sliding sleeve 71, the sliding assembly 8 that drives the sliding sleeve 71 to slide close to or away from the rotating cylinder 2, the sliding cylinder 72 that is fixed on the sliding sleeve and slides vertically through the slider 5 and the cylinder changing seat 51, a plurality of long holes 721 opened at the top of the sliding cylinder 72 and evenly surrounding it, a plurality of tensioning arms 73 each having one end hinged to the lower end of each long hole 721, and a flipping assembly 9 that drives all the tensioning arms 73 to flip outward or inward of the long hole 721 at the same time, and the tensioning arm 73 does not extend outside the long hole 721 in the vertical state.
[0038] When the bobbin 10 is fully loaded and the empty bobbin 10 is moved to the bottom of the conveyor line, the bobbin 10 is moved to the bottom of the conveyor line. When the bobbin 10 is fully loaded and the empty bobbin 10 is moved to the bottom of the conveyor line, the bobbin 10 is moved to the bottom of the conveyor line. When the bobbin 10 is fully loaded and the empty bobbin 10 is moved to the bottom of the conveyor line, the bobbin 10 is moved to the bottom of the conveyor line. When the bobbin 10 is fully loaded and the empty bobbin 10 is moved to the bottom of the conveyor line, the bobbin 10 is moved to the bottom of the conveyor line. When the bobbin 10 is fully loaded and the empty bobbin 10 is moved to the bottom of the conveyor line, the bobbin 10 is moved to the bottom of the conveyor line. When the bobbin 10 is fully loaded and the empty bobbin 10 is moved to the bottom of the conveyor line, the bobbin 10 is moved to the bottom of the conveyor line. When the bobbin 10 is fully loaded and the empty bobbin 10 is moved to the bottom of the conveyor line, the bobbin 10 is moved to the bottom of the conveyor line. When the bobbin 10 is fully loaded and the empty bobbin 10 is moved to the bottom of the conveyor line, the bobbin 10 is moved to the bottom of the conveyor line. When the bobbin 10 is fully loaded and the empty bobbin 10 is moved to the bottom of the conveyor line , in order to prevent the fully loaded bobbin 10 and the empty bobbin 10 from affecting or interfering with each other's movement between the two conveyor lines during the rotation of the lifting bracket 4. After the lifting bracket 4 is lowered to a certain safe height and a certain safe distance is maintained between the slider 15 and the rotating drum 2, the rotating assembly 3 will drive the rotating drum 2 and the lifting bracket 4 to rotate together, and the positions of the fully loaded bobbin 10 and the empty bobbin 10 will be exchanged. Before that, the turning assembly 9 will drive all the tensioning arms 73 to flip out of the long hole 1 721, so that the upper end of the tensioning arm 73 is unfolded and close to the inner wall of the bobbin 10, and cooperate with the lifting seat to tension and position the upper and lower ends of the bobbin 10 respectively, so as to ensure that the fully loaded bobbin 10 and the empty bobbin 10 can stably follow the rotation of the lifting bracket 4. Finally, after the rotation of the lifting bracket 4 is completed, the lifting assembly 6 and the sliding assembly 8 will rise and unfold the fully loaded bobbin 10 and the empty bobbin 10 respectively, so that the fully loaded bobbin 10 and the empty bobbin 10 can be exchanged and hung on the spindles on the two conveyor lines. Among them, the lifting bracket 4 includes a sliding sleeve 2 41 slidably mounted on the rotating cylinder 2, two pairs of guide rods 42 fixed on both sides of the sliding sleeve 2 41, and the slider 1 5 is located between the pair of guide rods 42, and the two sides of the slider 1 5 are fixedly installed with sliding sleeves 3 52 slidably mounted on the guide rods 42, which can ensure that the lifting bracket 4 and the slider 1 5 move stably on the rotating cylinder 2.
[0039] like Figure 1 、 Figure 2As shown, the rotating assembly 3 includes a driven ring gear 31 fixed to the rotating cylinder 2 and close to its lower end, a worm gear reduction motor 32 fixedly mounted on the frame 1, and a driving gear 1 33 fixedly mounted with the output end of the worm gear reduction motor 32. The driving gear 1 33 and the driven ring gear 31 are engaged with each other. When it is necessary to drive the rotating cylinder 2 to rotate, the worm gear reduction motor 32 will first drive the driving gear 1 33 to rotate, and then the driving gear 1 33 will engage and drive the driven ring gear 31 to rotate. Finally, the driven ring gear 31 drives the rotating cylinder 2 and the lifting bracket 4 to rotate together. Among them, the frame 1 is fixedly provided with a lower support plate 11 at the lower end of the rotating cylinder 2, and a limiting column 111 is fixedly provided on the top of the lower support plate 11, which penetrates into the interior of the rotating cylinder 2. The limiting column 111 and the rotating cylinder 2 are coaxial, and the diameter is smaller than the inner ring of the rotating cylinder 2. A bearing 112 is installed between the rotating cylinder 2 and the limiting column 111, and the two are fixedly connected to the inner ring and outer ring of the bearing 112 respectively. The worm gear reduction motor 32 is located at the bottom of the lower support plate 11, and the output end passes through the lower support plate 11 and is fixedly connected to the driving gear 33, which can further ensure the rotation stability of the rotating cylinder 2 without affecting the normal operation of the rotating component 3.
[0040] like Figure 1 、 Figure 2 As shown, the lifting assembly 6 includes a pair of flanges 61 respectively fixed to the upper and lower ends of the rotating cylinder 2, a plurality of screw rods 62 at both ends of which are respectively rotatably connected to the two flanges 61 and parallel to the rotating cylinder 2, a plurality of nuts 63 fixedly mounted on the second sleeve 41 and threadedly connected to each screw rod 62, a plurality of driven gears 64 fixed to the upper ends of the screw rods 62, a servo motor 65 fixedly mounted on the frame 1 and located at the top of the rotating cylinder 2, and a driving gear 2 66 fixedly mounted on the output end of the servo motor 65. All the screw rods 62 are evenly around the rotating cylinder 2, and the upper ends of the screw rods 62 rotate and pass through the flanges 61 at the upper end of the rotating cylinder 2. , the driving gear 2 66 is located between the driven gear 1 64 and meshes with each driven gear 1 64 respectively. A plurality of through holes for the screw rod 62 to pass through are opened on the slide sleeve 2 41, and the nut 1 63 is fixedly installed in the through hole. When it is necessary to drive the lifting bracket 4 to rise or fall, the servo motor 65 will first drive the driving gear 2 66 to rotate, and then the driving gear 2 66 meshes with the driven gear 1 64 to rotate, and then the driven gear 1 64 drives the screw rod 62 to rotate, and finally the nut 1 63 drives the slide sleeve 2 41 to slide on the rotating cylinder 2 under the rotation of the screw rod 62, thereby achieving the effect of driving the lifting bracket 4 to rise or fall;
[0041] By adopting the above technical solution, when the rotating assembly 3 drives the rotating drum 2 to rotate, the driven gear 1 64 will automatically move and rotate around the driving gear 2 66, so as to avoid the servo motor 65 rotating with the rotating drum 2, which may cause the wires of the servo motor 65 to be entangled. Although the screw rod 62 still rotates to drive the nut and the sliding sleeve 2 41 up and down during this process, since the number of revolutions of the driven gear 1 64 is relatively small and the subsequent servo motor 65 can also adjust the height of the sliding sleeve 2 41 accordingly, this effect can be ignored. Among them, the frame 1 is fixedly provided with an upper support plate 12 at the upper end of the rotating cylinder 2, and a limiting column 2 121 is fixedly installed at the bottom of the upper support plate 12. A protective cover 611 is fixedly provided on the flange 61 at the upper end of the rotating cylinder 2, which surrounds the limiting column 2 121, and the inner ring diameter of the protective cover 611 is larger than the limiting column 2 121. A bearing 2 122 is installed between the protective cover 611 and the limiting column 1 111, and the two are fixedly connected to the inner ring and outer ring of the bearing 2 122 respectively. The driven gear and the driving gear 2 66 are in the protective cover 611. The servo motor 65 is installed on the top of the upper support plate 12, and the output end passes through the upper support plate 12 and is fixedly connected to the driving gear 2 66, which can not only further ensure the rotation stability of the rotating cylinder 2, but also protect the transmission safety of the driving gear 2 66 and the driven gear 1 64 in the lifting assembly 6.
[0042] like Figure 2 、 Figure 3 As shown, the sliding assembly 8 includes two sections of thread grooves 81 opened on the rotating rod 7 and rotating in opposite directions, a nut 82 fixedly mounted on the inner ring of the sliding sleeve 71 and threadedly connected to the thread groove 81, a rotating shaft 83 rotatably set in the rotating cylinder 2 and with one end rotating through the cylinder wall, a bevel gear 1 84 fixedly mounted on the rotating rod 7 and located in the rotating cylinder 2, a bevel gear 2 85 fixedly mounted on the rotating shaft 83 and located in the rotating cylinder 2, a rack 86 fixedly mounted on the bottom of the sliding sleeve 41, and a driven gear 2 87 fixedly mounted on the rotating shaft 83 and located outside the rotating cylinder 2. The bevel gear 1 84 and the bevel gear 2 85 are meshed with each other, and the rack 86 and the driven gear 2 87 are meshed with each other. The segmented thread grooves 81 are located on both sides of the rotating cylinder 2. When the lifting assembly 6 drives the lifting bracket 4 to move up and down, the rack 86 at the bottom of the sliding sleeve 2 41 will engage with the driven gear 2 87 to rotate during the up and down movement of the lifting bracket 4. Then, the driven gear 2 87 will drive the bevel gear 2 85 to rotate through the rotating shaft 83, so that the bevel gear 2 85 engages with the transmission bevel gear 1 84, and then the bevel gear 1 84 drives the rotating rod 7 to rotate. Since the thread grooves 81 on both sides of the rotating rod 7 rotate in opposite directions, the two nuts 2 82 will respectively move along the rotating rod 7 to drive the two sliding sleeves 1 71 in opposite directions, and then cooperate with the sliding cylinder 72 to drive the lifting seat and the slider 1 5 to move closer to or away from the rotating cylinder 2.
[0043] like Figure 4-8As shown, the flip assembly 9 includes a long rod 91 and a short rod 92 that slide in the sliding cylinder 72, a connecting column 93 connecting the upper end of the long rod 91 and the lower end of the short rod 92, a spring 94 installed between the bottom of the sliding cylinder 72 and the lower end of the long rod 91, a second long hole 722 opened on the side wall of the sliding cylinder 72 and close to its lower end, a second slider 95 fixed to the side wall of the long rod 91 and sliding in the second long hole 722, a connecting rod 1 96 hinged at one end to the upper end of the second long hole 722, and a second connecting rod 97 hinged at both ends to the other end of the slider 2 95 and the connecting rod 1 96. The tensioning arm 73 is located on the long rod 9 1 and the short rod 92, and the connecting column 93 is located between the tensioning arm 73. A right-angled groove 731 is provided at a corner of the lower end of the tensioning arm 73 near the inside of the sliding cylinder 72, which can be clamped on the top of the long rod 91. A chamfered corner 732 is provided at the other corner of the lower end of the tensioning arm 73, and the lower end of the chamfered corner 732 coincides with the lower end of the right-angled groove 731. A semi-cylinder head 733 is fixedly provided on the upper end of the tensioning arm 73. A chamfered corner 92a is provided at the bottom of the short rod 92, which can contact the side of the semi-cylinder head 733. The total length of the connecting rod 1 96 and the connecting rod 2 97 does not exceed the length of the long hole 2 722.
[0044] By adopting the above technical solution, when the lifting assembly 6 drives the lifting bracket 4 to descend to a certain height, the elongated hole 2 722 at the bottom end of the sliding cylinder 72 will penetrate into the interior of the lifting seat and the slider 1 5, and the connecting rod 1 96 and the connecting rod 2 97 in the elongated hole 2 722 will be unfolded and flattened into the elongated hole 2 722, and the long rod 91 will compress the spring 94 downward relative to the sliding cylinder 72. At the same time, the bottom of the long rod 91 will move downward away from the right-angled groove 731 at the lower end of the tensioning arm 73, thereby releasing the lock on the rotation of the tensioning arm 73. Then the long rod 91 pulls the short rod 92 downward through the connecting rod. Since the lower end of the short rod 92 is provided with a chamfered corner 2 92a that can contact the side of the semi-circular cylindrical head 733 at the upper end of the tensioning arm 73, during the downward movement of the short rod 92, all the tensioning arms 73 will be pushed out of the elongated hole 1 721 to a certain extent, and a certain When the cam 72 is lifted up, the top of the cam 72 is lifted up and the cam 72 is released, so that the cam 72 is lifted up and the cam 72 is released.
[0045] When the lifting assembly 6 drives the lifting bracket 4 to rise to a certain height, the elongated hole 1 721 at the upper end of the sliding cylinder 72 will penetrate into the interior of the lifting seat and the slider 1 5, and the tensioning arm 73 that was previously flipped out of the elongated hole 1 721 will flip back to the elongated hole 1 721. At the same time, in this process, the right-angled groove 731 at the lower end of the tensioning arm 73 will be re-stuck on the top of the long rod 91, thereby locking the tensioning arm 73 in the elongated hole 1 721.
Claims
1. An automatic bobbin changing device for a roving frame, characterized in that: The invention comprises a frame (1), a rotating cylinder (2) vertically rotating on the frame (1), a rotating assembly (3) driving the rotating cylinder (2) to rotate, a lifting bracket (4) sliding on the rotating cylinder (2), a lifting assembly (6) driving the lifting bracket (4) to slide up and down on the rotating cylinder (2), a pair of sliders (5) sliding on the lifting bracket (4) and respectively located on both sides of the rotating cylinder (2), a cylinder changing seat (51) fixed above the sliders (5), a rotating rod (7) rotating horizontally passing through the rotating cylinder (2) and parallel to the lower side of the lifting bracket (4), a pair of sliding sleeves provided on the rotating rod (7) and respectively located on both sides of the rotating cylinder (2) A sliding sleeve (71) on the side, a sliding assembly (8) for driving the sliding sleeve (71) to slide close to or away from the rotating cylinder (2), a sliding cylinder (72) fixed on the sliding sleeve and vertically sliding through the slider (5) and the cylinder changing seat (51), a plurality of long holes (721) opened at the top of the sliding cylinder (72) and uniformly surrounding the sliding cylinder (72), a plurality of tensioning arms (73) each having one end hinged to the lower end of each long hole (721), and a flip assembly (9) for driving all the tensioning arms (73) to flip outward or inward of the long hole (721) at the same time, wherein the tensioning arms (73) do not extend outside the long hole (721) in the vertical state; The flip assembly (9) includes a long rod (91) and a short rod (92) sliding in the sliding cylinder (72), a connecting column (93) connecting the upper end of the long rod (91) and the lower end of the short rod (92), a spring (94) installed between the bottom of the sliding cylinder (72) and the lower end of the long rod (91), a second long hole (722) opened on the side wall of the sliding cylinder (72) and close to its lower end, a second slider (95) fixed to the side wall of the long rod (91) and sliding in the second long hole (722), a first connecting rod (96) hinged at one end to the upper end of the second long hole (722), and a second connecting rod (97) hinged at both ends to the other end of the slider (95) and the first connecting rod (96), the tensioning arm (73) is located between the long rod (91) and the short rod (92). The short rod (92) and the connecting column (93) are located between the tensioning arms (73). A right-angle groove (731) capable of being stuck on the top of the long rod (91) is provided at a corner of the lower end of the tensioning arm (73) near the inside of the sliding cylinder (72). The other corner of the lower end of the tensioning arm (73) is provided with a chamfer (732), and the lower end of the chamfer (732) coincides with the lower end of the right-angle groove (731). A semi-cylindrical head (733) is fixedly provided at the upper end of the tensioning arm (73). The bottom of the short rod (92) is provided with a chamfer (92a) capable of contacting the side of the semi-cylindrical head (733). The total length of the connecting rod (96) and the connecting rod (97) does not exceed the length of the long hole (722).
2. The automatic bobbin changing device for a roving frame according to claim 1, characterized in that: The lifting bracket (4) includes a second sliding sleeve (41) slidably mounted on the rotating cylinder (2), two pairs of guide rods (42) respectively fixed on both sides of the second sliding sleeve (41), the first sliding block (5) is located between the pair of guide rods (42), and the two sides of the first sliding block (5) are fixedly mounted with a third sliding sleeve (52) slidably mounted on the guide rods (42).
3. The automatic bobbin changing device for a roving frame according to claim 1, characterized in that: The rotating assembly (3) comprises a driven ring gear (31) fixed to the rotating cylinder (2) and close to the lower end thereof, a worm gear reduction motor (32) fixedly mounted on the frame (1), and a driving gear 1 (33) fixedly mounted on the output end of the worm gear reduction motor (32), wherein the driving gear 1 (33) and the driven ring gear (31) are meshed with each other.
4. The automatic bobbin changing device for a roving frame according to claim 3, characterized in that: The frame (1) is fixedly provided with a lower support plate (11) at the lower end of the rotating cylinder (2); a limiting column (111) is fixedly provided on the top of the lower support plate (11) and is inserted into the interior of the rotating cylinder (2); the limiting column (111) and the rotating cylinder (2) are coaxial and have a diameter smaller than the inner ring of the rotating cylinder (2); a bearing (112) is installed between the rotating cylinder (2) and the limiting column (111), and the two are fixedly connected to the inner ring and outer ring of the bearing (112) respectively; the worm gear reduction motor (32) is located at the bottom of the lower support plate (11), and the output end passes through the lower support plate (11) and is fixedly connected to the driving gear (33).
5. The automatic bobbin changing device for a roving frame according to claim 1, characterized in that: The lifting assembly (6) includes a pair of flanges (61) respectively fixed to the upper and lower ends of the rotating cylinder (2), a plurality of screw rods (62) whose ends are respectively connected to the two flanges (61) and are parallel to the rotating cylinder (2), a plurality of nuts (63) fixedly mounted on the second sleeve (41) and threadedly connected to each screw rod (62), a plurality of driven gears (64) fixed to the upper ends of the screw rods (62), a servo motor (65) fixedly mounted on the frame (1) and located at the top of the rotating cylinder (2), and a fixedly mounted The driving gear 2 (66) is located at the output end of the servo motor (65), and all the screw rods (62) are evenly arranged around the rotating cylinder (2), and the upper ends of the screw rods (62) rotate and pass through the flange (61) at the upper end of the rotating cylinder (2). The driving gear 2 (66) is located between the driven gears 1 (64) and is respectively engaged with each driven gear 1 (64). The sliding sleeve 2 (41) is provided with a plurality of through holes for the screw rods (62) to pass through, and the nut 1 (63) is fixedly installed in the through holes.
6. The automatic bobbin changing device for a roving frame according to claim 5, characterized in that: The frame (1) is fixedly provided with an upper support plate (12) at the upper end of the rotating cylinder (2), and a limiting column 2 (121) is fixedly installed at the bottom of the upper support plate (12). A protective cover (611) surrounding the limiting column 2 (121) is fixedly provided on the flange (61) at the upper end of the rotating cylinder (2), and the inner ring diameter of the protective cover (611) is larger than that of the limiting column 2 (121). A bearing 2 (122) is installed between the protective cover (611) and the limiting column 1 (111), and the two are fixedly connected to the inner ring and outer ring of the bearing 2 (122) respectively. The driven gear and the driving gear 2 (66) are in the protective cover (611). The servo motor (65) is installed on the top of the upper support plate (12), and the output end passes through the upper support plate (12) and is fixedly connected to the driving gear 2 (66).
7. The automatic bobbin changing device for a roving frame according to claim 1, characterized in that: The sliding assembly (8) includes two sections of thread grooves (81) opened on the rotating rod (7) and rotating in opposite directions, a nut (82) fixedly mounted on the inner ring of the sliding sleeve (71) and threadedly connected to the thread groove (81), a rotating shaft (83) rotatably arranged in the rotating cylinder (2) and with one end rotating through the cylinder wall, a bevel gear (84) fixedly mounted on the rotating rod (7) and located in the rotating cylinder (2), a bevel gear (85) fixedly mounted on the rotating shaft (83) and located in the rotating cylinder (2), a rack (86) fixedly mounted on the bottom of the sliding sleeve (41), and a driven gear (87) fixedly mounted on the rotating shaft (83) and located outside the rotating cylinder (2), the bevel gear (84) and the bevel gear (85) meshing with each other, the rack (86) and the driven gear (87) meshing with each other, and the two sections of the thread groove (81) are located on both sides of the rotating cylinder (2).
Citation Information
Patent Citations
Swing-arm type lifting thin film packer
CN204280017U
Special creeling machine for textile machine
CN209039656U