Gear displacement mechanism and machine for automatically winding bottom line and automatically assembling bobbin case

Abstract

The invention discloses a gear shifting mechanism and an automatic bobbin thread winding and automatic bobbin case assembling machine, and relates to the embroidery technology.The gear shifting mechanism comprises a shifting gear assembly, a transmission gear assembly and a shifting driver, the shifting gear assembly comprises a shifting gear shaft and a shifting gear axially and movably installed on the shifting gear shaft, and the shifting gear is connected with the transmission gear assembly; the deflection gear is driven by a deflection gear shaft to rotate; the transmission gear assembly comprises a transmission gear shaft and at least two transmission gears rotationally mounted on the transmission gear shaft, and the transmission gear shaft is parallel to the deflection gear shaft; the displacement driver drives the displacement gear to move in the axial direction of the displacement gear shaft so as to change stations, and separation or meshing of the displacement gear and the transmission gear is achieved.

Description

Technical Field

[0001] This invention belongs to the technical field of embroidery equipment, specifically relating to an automatic bobbin wrapping machine and an automatic bobbin assembly machine. Background Technology

[0002] Currently, some automatic bobbin winding and automatic bobbin case assembly machines have appeared on the market. Referring to Chinese invention patent application CN111379094 A, a bobbin and bobbin separation type automatic bobbin winding and de-threading integrated equipment and process method are disclosed. This aims to overcome the shortcomings of existing technologies where bobbin excess thread removal and rewinding, as well as bobbin and bobbin case assembly and bobbin case winding, still require manual labor. It provides an automated equipment that replaces the tedious manual work of bobbin excess thread removal, bobbin winding, bobbin case winding, bobbin and bobbin case assembly, thread clamping, and thread breaking. Its structure includes a base and a main board mounted on the base. The base has a gripping device positioned relative to the main board. The main board is equipped with a winding device, a de-threading device, a thread supply device, and a thread breaking mechanism. The winding device includes a winding spindle that drives the bobbin to rotate, a spindle drive motor that drives the winding spindle to rotate, a movable top head, and a rotating winder. The de-threading device includes a de-threading wheel assembly, a separating thread guide, and a thread suction mechanism.

[0003] Each of the winding device, wire removal device, and wire supply device requires a motor, resulting in numerous motor components and high costs. To reduce the number of motors, the applicant proposes that multiple devices share a single motor. However, to achieve this, the transmission relationship between the main motor and multiple devices needs to be switched. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the technical problem to be solved by this invention is to provide a gear shifting mechanism and an automatic bobbin winding and automatic shuttle assembly machine, which solves the problem of switching the transmission relationship between the main motor and multiple devices when multiple devices are driven by the same motor.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: First, a gear shifting mechanism is provided, comprising: A shift gear assembly, comprising a shift gear shaft and a shift gear axially movably mounted on the shift gear shaft, wherein the shift gear is driven to rotate by the shift gear shaft; A transmission gear assembly, the transmission gear assembly including a transmission gear shaft and at least two transmission gears rotatably mounted on the transmission gear shaft, the transmission gear shaft and the modified gear shaft being parallel; A positioner actuator drives a positioner gear to move axially along the positioner gear shaft to change the working position and realize the separation or engagement of the positioner gear and the transmission gear.

[0006] Preferably, the gear shifting mechanism further includes a gear limiting block, which has limiting teeth extending axially along the shifting gear shaft. The limiting teeth have limiting notches. The gear limiting block is driven by the shifting driver to move axially synchronously with the shifting gear. The limiting teeth engage with the transmission gear to prevent the transmission gear from rotating when it is in a disengaged state. The limiting notches correspond to the axial position of the transmission gear in a meshed state to avoid the transmission gear in a meshed state.

[0007] Preferably, the transmission gear assembly has two transmission gear shafts arranged side by side, and the shift gear shaft has two shift gears. The two shift gears mesh with the transmission gears on the two transmission gear shafts respectively. When one shift gear meshes with the transmission gear on one of the transmission gear shafts, the other shift gear disengages from the transmission gear on the other transmission gear shaft.

[0008] Preferably, the two displacement gears are integrally slidably mounted on the displacement gear shaft.

[0009] Preferably, the modified gear shaft is provided with a spline, and the modified gear is provided with a spline groove that slides with the spline.

[0010] Preferably, the displacement actuator includes a displacement motor and a displacement lead screw and nut assembly. The displacement motor drives the lead screw in the displacement lead screw and nut assembly to rotate. The nut in the displacement lead screw and nut assembly is connected to the displacement drive frame. The displacement drive frame is connected to the displacement gear.

[0011] Preferably, a shift transmission pulley assembly is provided between the shift motor and the shift lead screw.

[0012] Preferably, the gear shifting mechanism further includes a shifting sensor assembly for detecting the axial position of the shifting gear.

[0013] Preferably, the displacement sensor assembly includes a displacement optical coupler sensing sheet that moves axially with the displacement gear and at least two optical couplers provided at each station of the displacement gear, wherein the optical couplers cooperate with the displacement optical coupler sensing sheet.

[0014] In addition, the present invention also provides an automatic bobbin winding machine and an automatic shuttle shell assembly machine, including the aforementioned gear shifting mechanism.

[0015] The present invention adopts the above technical solution and has the following technical effects: The main motor drives the positioner gear shaft to rotate. In order to enable one main motor to drive multiple devices, a positioner gear assembly is used for position changes. The positioner gear is axially mounted on the positioner gear shaft and is driven to rotate by the positioner gear shaft. The positioner drive drives the positioner gear to move axially along the positioner gear shaft to change the working position and realize the separation or engagement of the positioner gear and the transmission gear. The positioner gear mechanism can smoothly realize position changes, is reliable, and has a long service life.

[0016] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0017] The invention will be further described below with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the overall structure of the automatic bobbin winding and automatic shuttle shell assembly machine of the present invention; Figure 2 This is a partially enlarged structural schematic diagram of the automatic bobbin winding and automatic shuttle shell assembly machine of the present invention; Figure 3 This is a schematic diagram of one of the states of the invention of an automatic bobbin wrapping machine and an automatic shuttle shell assembly machine; Figure 4 This is a schematic diagram of one state of the automatic bobbin winding and automatic shuttle shell assembly machine of the present invention; Figure 5 This is a schematic diagram of one state of the automatic bobbin winding and automatic shuttle shell assembly machine of the present invention; Figure 6 This is a schematic diagram of one state of the automatic bobbin winding and automatic shuttle shell assembly machine of the present invention; Figure 7 This is a partial structural schematic diagram of the automatic bobbin winding and automatic shuttle shell assembly machine of the present invention; Figure 8 This is a partial structural schematic diagram of the automatic bobbin winding and automatic shuttle shell assembly machine of the present invention; Figure 9 This is a partial structural schematic diagram of the automatic bobbin winding and automatic shuttle shell assembly machine of the present invention; Figure 10 This is a partial structural schematic diagram of the automatic bobbin winding and automatic shuttle shell assembly machine of the present invention; Figure 11 This is a partial structural schematic diagram of the automatic bobbin winding and automatic shuttle shell assembly machine of the present invention; Figure 12 This is a schematic diagram of the arrangement structure of the optocoupler and the optocoupler sensor. Figure 13 This is a schematic diagram of the gear shifting mechanism; Figure 14 This is an exploded structural diagram of the gear shifting mechanism; Figure 15 This is a schematic diagram of the structure of the guide rod moving up and down at the winding position; Figure 16 This is a schematic diagram of the wire bonding mechanism; Figure 17 This is a schematic diagram of the mechanism for the left and right movement of the guide rod at the winding position; Figure 18 This is a schematic diagram of the structure of the linear tensioner swing mechanism; Figure 19 This is a schematic diagram of the structure of the linear tensioner swing mechanism; Figure 20 This is a structural schematic diagram of the winding and pulling components; Figure 21 This is a structural schematic diagram of the winding and pulling components; Figure 22 This is a structural schematic diagram of the winding and pulling components; Figure 23 This is a schematic diagram of the winding mechanism; Reference numerals: 100-line, 200-frame, 300-line reel, 400-line support rod, 500-winding mechanism, 600-winding device, 700-storage tray frame device, 800-robotic arm device, 900-waste collection bag; 1-Vacuum suction tube, 2-Threading rod, 3-Thread pulling wheel opening and closing mechanism, 4-Scissors mechanism, 5-Winding mechanism, 6-Hoop shell guide rod, 7-Winding position guide rod, 8-Thread quantity detection mechanism, 9-Thread pressing mechanism, 10-Thread hooking mechanism, 11-Material tray thread clamp, 12-Bobbin and bobbin shell assembly, 13-Robot gripping component, 14-Robot control motor, 15-Bobbin pressing guide wheel, 16-Robot position control motor, 17-Third drive bevel gear, 171-First bevel gear, 172-Second bevel gear, 18-Thread tensioning rod, 21-Positioning motor, 22-Position sensing circuit board, 23-Main motor; 28-No. 1 Variable displacement pulley, 29-Pulley No. 2, 30-Pulley No. 3, 31-Pulley No. 4, 32-Pulley No. 5, 33-Pulley No. 6, 36-Pulley No. 7, 37-Pulley No. 8, 38-Pulley No. 9, 39-Pulley No. 10, 42-Optical coupler at position 1, 43-Optical coupler at position 2, 44-Optical coupler at position 3, 45-Optical coupler at position 4, 46-Optical coupler at position 5, 47-Variable displacement optical coupler sensor, 48-Variable displacement lead screw, 49-Variable displacement drive frame, 491-Drive fork, 492-Limit block fixing part, 50-Gear limit block one, 501-Limit tooth, 502-Limit notch, 511-Transmission gear shaft, 51-Third transmission gear. 52-Third adapter pulley, 521-Driving bevel gear, 53-Main drive spline shaft, 54-First transmission gear, 55-Second transmission gear, 56-Displacement screw and nut assembly, 57-Fourth transmission gear, 58-Fifth transmission gear, 59-Gear limit block two, 60-Displacement gear, 601-Displacement fork groove, 602-Displacement gear shaft, 603-Spline, 61-Fifth adapter pulley, 62-Fifth bevel gear, 63-Upper and lower linear transmission screw and nut assembly, 64-Fourth adapter pulley, 65-Fourth drive pulley, 66-Second adapter pulley, 67-Second drive bevel gear, 68-Second circular... 69-Second rack, 77-First adapter pulley, 78-Screw for forward and backward movement of shuttle guide rod, 79-Screw for shuttle guide rod moving frame, 80-Screw for shuttle guide rod rotation drive gear shaft, 81-Winding rotor, 82-Drawing wheel drive shaft, 83-Rotor drive pulley, 84-Screw for shuttle guide rod rotation drive motor, 85-Screw for shuttle guide rod rotating wheel, 86-Drawing wheel opening pin, 87-Linear shaft, 88-Linear bearing component, 89-Screw for shuttle guide rod forward and backward movement nut, 91-Bearing one, 92-Bearing two, 93-Bearing three; 94-Drawing wheel lever, 95-Drawing wheel closing tension spring, 96-Winding drive motor. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present invention.

[0019] Those skilled in the art will understand that, without conflict, the features in the following embodiments and implementations can be combined with each other.

[0020] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as "upper," "lower," "front," and "rear" that indicate orientation or positional relationship are based solely on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0021] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0024] like Figure 1As shown, the overall structure of the automatic bobbin winding and automatic shuttle assembly machine includes a frame 200, a platform on the frame, a wire support rod 400, a winding mechanism 500, a winding device 600, a storage tray frame device 700, and a robotic arm device 800 above the platform. Below the platform are a wire reel 300 and a waste collection bag 900. The wire 100 is led out from the wire reel 300, passes upward through the wire support rod 400, then passes through the winding mechanism 500, and finally is wound in the winding device 600.

[0025] The storage tray rack device 700 stores multiple storage trays, including trays for storing used bobbin and bobbin case assemblies 12, and trays for storing bobbin and bobbin case assemblies 12 with the bobbin thread wound. The robotic arm device 800 is equipped with a robotic arm gripping component 13, a robotic arm control motor 14, and a robotic arm position control motor 16. The robotic arm control motor 14 is used to control the robotic arm gripping component 13 to perform gripping actions, and the robotic arm position control motor 16 is used to control the robotic arm gripping component 13 to move in multiple directions.

[0026] like Figure 2 As shown, the winding device 600 includes a mechanism for the up-and-down movement of the winding position guide rod 7, a mechanism for the left-and-right movement of the winding position guide rod 7, a thread-tapping mechanism, a mechanism for the swinging of the thread tension rod 18, a mechanism for the forward and backward movement of the bobbin guide rod, a thread-pulling wheel opening and closing mechanism 3, a winding mechanism 5, and a thread quantity detection mechanism 8. Additionally, a thread-pressing mechanism 9 and a thread-hooking mechanism 10 are provided to work in conjunction with the winding device 600, and a scissor mechanism 4 is used to cut the thread. The mechanism for the up-and-down movement of the winding position guide rod 7 drives the winding position guide rod 7 to move up and down; the mechanism for the left-and-right movement of the winding position guide rod 7 drives the winding position guide rod 7 to move left and right; the thread-tapping mechanism drives the thread-tapping rod 2 to rotate; the mechanism for the swinging of the thread tension rod 18 drives the thread tension rod 18 to swing; the mechanism for the forward and backward movement of the bobbin guide rod drives the thread-pulling wheel to move forward and backward; and the winding mechanism 5 is used for winding the bobbin.

[0027] The winding mechanism 5 includes a winding wheel and a bobbin guide wheel 15 arranged on the same axial direction opposite the winding wheel. The pull wheel opening and closing mechanism 3 has two pull wheels that can be opened and closed.

[0028] After threading the string, as follows Figure 3 As shown, the robotic arm 800 removes the used bobbin and bobbin case assembly 12 from the storage tray and places it onto the winding wheel of the winding mechanism 5. Figure 4 As shown, at this time, the robotic arm 800 grasps the bobbin case and moves it backward, separating the bobbin case from the bobbin core. The thread-beating lever 2 rotates one revolution to pull the thread connecting the bobbin core and the bobbin case out of the bobbin case thread channel. The vacuum suction tube 1 is activated, sucking the pulled-out thread end into the vacuum suction tube. The thread-pulling wheel opening and closing mechanism 3 closes to clamp the thread. Figure 5As shown, the bobbin guide wheel 15 moves to the concentric position of the winding wheel and presses down the bobbin. At this time, the winding wheel reverses and drives the pulling wheel to rotate. The auxiliary vacuum suction tube 1 pulls out the waste thread on the bobbin and puts it into the waste collection bag 900.

[0029] The thread quantity detection mechanism 8 moves towards the bobbin to detect the amount of thread in the bobbin. When it detects that all the waste thread in the bobbin has been pulled out, the winding mechanism 5 stops operating, the bobbin pressing guide wheel 15 retracts to leave a distance between itself and the bobbin, the winding position guide rod 7 moves, moving the threaded thread to the position where the bobbin pressing guide wheel 15 just clamps the thread when pressing the bobbin. At this time, the bobbin pressing guide wheel 15 presses down on the threaded thread and the bobbin, and the winding mechanism 5 (winding wheel) begins to rotate forward, winding the thread onto the bobbin. Figure 6 As shown, when the thread detection mechanism 8 detects that the bobbin is fully wound, the robotic arm grabs the bobbin case and inserts the bobbin into it. At this time, the bobbin case guide rod 6 will pour the thread into the bobbin case guide groove according to the bobbin case thread loading method of the sewing equipment, completing the assembly of the bobbin case and bobbin. Then, the robotic arm grabs the bobbin case assembly and puts it back on the storage tray. At this time, the thread pressing mechanism 9 is driven by the cylinder to press the thread end, the thread hooking mechanism 10 hooks the thread into the material tray thread clamp 11, and the scissors of the scissors mechanism 4 cut it, completing the thread pulling, winding, and assembly work of a bobbin case.

[0030] After the bobbin case and bobbin assembly is returned to the storage tray, the storage tray rotates one station to begin the winding assembly of the next bobbin case and bobbin. Once the winding assembly of all bobbin cases and bobbins on one storage tray is completed, the entire storage tray frame will rotate one station to begin the winding assembly of bobbin cases and bobbins on the next storage tray.

[0031] In existing technologies, the winding position guide rod up-and-down movement mechanism, the wire-tapping mechanism, the wire tensioning rod swing mechanism, the winding position guide rod left-and-right movement mechanism, and the shuttle case guide rod forward-and-backward movement mechanism are all driven by separate motors, resulting in an excessive number of motors. To address the problem of excessive cost due to the large number of motors, such as... Figures 1 to 23 As shown, the above-mentioned winding position guide rod 7 up and down movement mechanism, wire-tapping mechanism, wire tensioning rod 18 swing mechanism, winding position guide rod 7 left and right movement mechanism, and wire-pulling wheel opening and closing mechanism 3 are driven by a main motor 23, which drives the above mechanisms through a gear shifting mechanism.

[0032] The gear shifting mechanism includes: A shift gear assembly, comprising a shift gear shaft 602 and a shift gear 60 axially movably mounted on the shift gear shaft, wherein the shift gear 60 is driven to rotate by the shift gear shaft 602. A transmission gear assembly, comprising a transmission gear shaft 511 and at least two transmission gears rotatably mounted on the transmission gear shaft, wherein the transmission gear shaft 511 is parallel to the displacement gear shaft 602. A positioner actuator drives a positioner gear 60 to move axially along a positioner gear shaft 602 to change the working position and realize the separation or engagement of the positioner gear and the transmission gear.

[0033] The up-and-down movement mechanism of the winding position guide rod 7 includes a fifth adapter pulley 61, a fifth bevel gear 62, and an up-and-down linear transmission screw and nut assembly 63. The up-and-down linear transmission screw and nut assembly 63 includes an up-and-down linear transmission screw and an up-and-down linear transmission nut. The transmission gear assembly includes a fifth transmission gear 58, which is integrally connected to a fifth transmission pulley. A transmission belt is provided between the fifth transmission pulley and the fifth adapter pulley 61. The bevel gear coaxially arranged on the fifth adapter pulley meshes with the fifth bevel gear 62. The fifth bevel gear is mounted on the up-and-down linear transmission screw and drives the screw to rotate. The up-and-down linear transmission nut drives the winding position guide rod 7 to move up and down.

[0034] The wire-punching mechanism includes a fourth adapter pulley 64 and a wire-punching rod drive shaft. The transmission gear assembly includes a fourth transmission gear 57, which is integrally connected to a fourth transmission pulley. A transmission belt is provided between the fourth transmission pulley and the fourth adapter pulley. A transmission belt assembly is provided between the shaft of the fourth adapter pulley and the wire-punching rod drive shaft. The transmission belt assembly includes a fourth drive pulley 65 located on the wire-punching rod drive shaft. The wire-punching rod drive shaft drives the wire-punching rod 2 to rotate.

[0035] The oscillating mechanism of the wire tensioner 18 includes a third adapter pulley 52, a third bevel gear shaft, and a third drive bevel gear 17. The third bevel gear shaft has a first bevel gear 171 and a second bevel gear 172 at both ends. The third adapter pulley 52 is integrally connected to a drive bevel gear 521. The transmission gear assembly includes a third transmission gear 51, which is integrally connected to a third transmission pulley. A transmission belt is provided between the third transmission pulley and the third adapter pulley 52. ​​The drive bevel gear 521 integrally mounted on the third adapter pulley meshes with the first bevel gear 171 at the first end of the third bevel gear shaft, and the second bevel gear 172 at the second end of the third bevel gear shaft meshes with the third drive bevel gear 17. Furthermore, the wire tensioner 18 is connected to a wire tensioner drive shaft, which is connected to or coaxially mounted with the third drive bevel gear 17. The wire tensioner 18 is connected to a wire tensioner torsion spring, and the third drive bevel gear 17 can drive the wire tensioner 18 to oscillate.

[0036] The winding position guide rod 7's left-right movement mechanism includes a second adapter pulley 66, a second drive bevel gear 67, a second cylindrical gear 68, and a second rack 69. The transmission gear assembly includes a second transmission gear 55, which is integrally connected to a second transmission pulley. A transmission belt is provided between the second transmission pulley and the second adapter pulley 66. The bevel gear integrally mounted on the second adapter pulley meshes with the second drive bevel gear 67. The second drive bevel gear is coaxially mounted with a second cylindrical gear 68, which meshes with the second rack 69. The second rack 69 drives the winding position guide rod 7 to move horizontally left and right.

[0037] The shuttle housing guide rod forward and backward movement mechanism includes a first adapter pulley 77 and a first transmission pulley assembly. The transmission gear assembly includes a first transmission gear 54, which is integrally connected to the first transmission pulley. A transmission belt is provided between the first transmission pulley and the first adapter pulley 77, and the first adapter pulley 77 drives the first transmission pulley assembly. The first transmission pulley assembly includes a fifth pulley 32 and a sixth pulley 33, and a transmission belt connecting the fifth pulley 32 and the sixth pulley 33. The fifth pulley 32 and the first adapter pulley 77 are coaxially arranged and can be an integral structure. The first transmission pulley assembly is connected to the shuttle housing guide rod forward and backward movement screw assembly. Specifically, the sixth pulley 33 is connected to the shuttle housing guide rod forward and backward movement screw 78, and the shuttle housing guide rod forward and backward movement nut 89 is connected to the shuttle housing guide rod forward and backward movement frame 79. The shuttle housing guide rod forward and backward movement frame 79 is connected to the shuttle housing guide rod rotating wheel 85. The shuttle housing guide rod rotating wheel 85 is slidably mounted on the shuttle housing guide rod rotation drive gear shaft 80. The shuttle housing guide rod rotating wheel 85 is connected to the shuttle housing guide rod 6. The shuttle housing guide rod forward and backward moving frame 79 drives the shuttle housing guide rod rotating wheel 85 to slide axially on the shuttle housing guide rod rotation drive gear shaft 80, thus realizing the forward and backward movement of the shuttle housing guide rod 6.

[0038] Additionally, the shuttle housing guide rod rotating gear shaft 80 is driven to rotate by the shuttle housing guide rod rotating drive motor 84. A second transmission pulley assembly is provided between the shuttle housing guide rod rotating drive motor 84 and the shuttle housing guide rod rotating gear shaft 80. A winding rotor 81 is coaxially connected to the shuttle housing guide rod rotating gear shaft 80, and the winding rotor 81 can rotate relatively independently. The second transmission pulley assembly includes a No. 7 pulley 36 coaxially connected to the shuttle housing guide rod rotating gear shaft, so that the second transmission pulley assembly can drive the shuttle housing guide rod rotating gear shaft 80 to rotate. The shuttle housing guide rod rotating gear shaft 80 is supported by bearing 2 92. The winding mechanism includes the winding rotor 81, the winding drive motor 96, and the rotor drive pulley 83. The winding rotor shaft moves through the hollow center of the shuttle housing guide rod rotating gear shaft 80 and is supported by bearings, specifically bearing 1 91 and bearing 3 93. The winding drive motor 96 drives the winding rotor shaft through the rotor drive pulley 83 and the transmission belt. In addition, the shuttle housing guide rod front and rear moving frame 79 is connected to a linear shaft 87 and a linear bearing component 88, which provides linear guidance for the shuttle housing guide rod front and rear moving frame 79.

[0039] A third transmission pulley assembly is provided between the winding rotor shaft and the wire pulling wheel drive shaft 82. The third transmission pulley assembly includes a No. 8 pulley 37 located on the winding rotor shaft and a No. 9 pulley 38 located on the wire pulling wheel drive shaft 82. ， A transmission belt is provided between pulley No. 8 37 and pulley No. 9 38, so that the winding rotor shaft can drive the wire pulling wheel drive shaft to rotate through the third transmission pulley assembly, and the wire pulling wheel drive shaft drives one of the wire pulling wheels to rotate.

[0040] Specifically, the shuttle housing guide rod rotating wheel 85 may be provided with an annular groove, and the shuttle housing guide rod forward and backward moving frame 79 may be provided with a drive fork, which engages with the annular groove. With this engagement structure, the drive fork can drive the shuttle housing guide rod rotating wheel 85 to slide axially without affecting the rotation of the shuttle housing guide rod rotating wheel 85.

[0041] Furthermore, the shuttle housing guide rod rotating wheel 85 is connected to a wire-pulling wheel opening pin 86. The wire-pulling wheel opening pin 86 rotates with the shuttle housing guide rod rotating wheel and drives the opening and closing mechanism of the wire-pulling wheel. This facilitates the smooth entry and pulling of excess wire.

[0042] Furthermore, the gear shifting mechanism also includes a gear limiting block. The gear limiting block has limiting teeth 501 extending axially along the shaft of the shifted gear. The limiting teeth 501 have limiting notches 502. The gear limiting block is driven by the shifting driver to move axially synchronously with the shifted gear 60. The limiting teeth 501 engage with the transmission gear to prevent rotation of the transmission gear when it is disengaged from the shifted gear. The limiting notches 502 correspond to the axial position of the transmission gear when it is engaged, thus preventing rotation of the transmission gear when it is engaged. Therefore, the gear limiting block can restrict the rotation of the transmission gear when it is disengaged from the shifted gear, ensuring accurate engagement with the transmission gear after the shifted gear is shifted; simultaneously, the limiting notches prevent the transmission gear when it is engaged, allowing the transmission gear to rotate normally.

[0043] If multiple transmission gears, such as four or more, are installed on the same transmission gear shaft, the shaft length becomes excessively long. However, due to space limitations, this is often difficult to implement in practice. To avoid this space limitation, in this embodiment, the transmission gear assembly has two transmission gear shafts 511 arranged side by side. Two displacement gears 60 are installed on the displacement gear shaft, and each displacement gear 60 meshes with a transmission gear on one of the two transmission gear shafts 511. Furthermore, when one displacement gear meshes with a transmission gear on one of the transmission gear shafts, the other displacement gear disengages from the transmission gear on the other transmission gear shaft. That is, after each displacement of the displacement gear mechanism, only one displacement gear can drive one of the transmission gears. Corresponding to the transmission gears on the two transmission gear shafts 511, two gear limiting blocks are provided: gear limiting block one 50 and gear limiting block two 59.

[0044] Furthermore, a spline 603 is provided on the modified gear shaft 602 to form the main drive spline shaft 53, and the modified gear 60 is provided with a spline groove that slides with the spline.

[0045] Specifically, the displacement actuator includes a displacement motor 21 and a displacement lead screw and nut assembly 56. The displacement motor 21 drives the displacement lead screw 48 in the displacement lead screw and nut assembly to rotate. The displacement nut in the displacement lead screw and nut assembly is connected to a displacement drive frame 49, and the displacement drive frame 49 is connected to a displacement gear 60. Gear limit block one 50 and gear limit block two 59 are both mounted on the displacement drive frame 49. The displacement drive frame 49 is provided with limit block fixing parts 492 for fixing gear limit block one 50 and gear limit block two 59, which can be fixed with bolts. A displacement transmission pulley assembly is provided between the displacement motor 21 and the displacement lead screw 48. The displacement transmission pulley assembly includes a first pulley 28 connected to the output shaft of the displacement motor 21, a second pulley 29 connected to the displacement lead screw in the displacement lead screw and nut assembly 56, and a displacement transmission belt connecting the first pulley 28 and the second pulley 29.

[0046] Furthermore, two displacement gears 60 are integrally slidably mounted on the displacement gear shaft 602. A displacement fork groove 601 is provided between the two displacement gears 60, and the displacement drive frame 49 is provided with a drive fork 491, which engages with the displacement fork groove 601. This engagement structure allows the drive fork to drive the displacement gears axially without affecting their rotation.

[0047] It is understandable that the aforementioned transmission gears are all integrally equipped with transmission pulleys to facilitate transmission through the transmission pulley assembly.

[0048] Furthermore, the gear shifting mechanism also includes a shifting sensor assembly for detecting the axial position of the shifting gear 60. The shifting sensor assembly includes a shifting optocoupler sensing element 47 that moves axially with the shifting gear, and at least two optocouplers provided at each station of the shifting gear. The optocouplers cooperate with the shifting optocoupler sensing element. The shifting optocoupler sensing element 47 is mounted on the dynamic shifting drive frame 49. In this embodiment, five optocouplers are provided at the five stations of the shifting gear: position 1 optocoupler 42, position 2 optocoupler 43, position 3 optocoupler 44, position 45, and position 5 optocoupler 46. These five optocouplers are located on the position sensing circuit board 22.

[0049] The main motor 23 is connected to the main drive spline shaft 53 by a main drive pulley assembly, which includes a third pulley 30, a fourth pulley 31 and a corresponding main drive belt. The third pulley 30 is connected to the output shaft of the main motor, and the fourth pulley 31 is connected to the main drive spline shaft 53. Thus, the main motor 23 drives the main drive spline shaft 53 to rotate through the main drive pulley assembly, and drives the shift gear 60 to rotate through the spline. When the equipment is powered on, the positioner motor 21 drives the first pulley 28 and the second pulley 29, which in turn drives the positioner screw 48 to rotate. Under the force of the positioner screw nut assembly 56, the positioner drive frame 49, the gear limit block 1 50, the gear limit block 2 59, and the positioner gear 60 move. At the same time, the positioner optocoupler sensor 47 installed on the positioner drive frame 49 also moves. If the notch on the positioner optocoupler sensor 47 aligns with a sensor on the position sensing circuit board 22 (position optocoupler 42, position optocoupler 43, position optocoupler 44, position optocoupler 45, and position optocoupler 46), the equipment control system can determine the working position of the positioner gear and then perform subsequent work.

[0050] When the notch on the position-changing optocoupler sensor 47 corresponds to the fifth position optocoupler 46 on the position sensing circuit board 22, the position-changing gear 60 meshes with the fifth transmission gear 58. At this time, the main motor 23 can drive the third pulley 30, the fourth pulley 31, the main drive spline shaft 53, and the position-changing gear 60 to rotate. The position-changing gear 60 can drive the corresponding fifth transmission gear 58 to rotate. The fifth transmission gear 58 drives the fifth adapter pulley 61, the fifth bevel gear 62, and the lead screw in the upper and lower linear transmission lead screw nut assembly 63 to rotate, thereby controlling the up and down movement of the winding position guide rod 7, which plays the role of controlling the up and down position of the wire.

[0051] When the notch on the position-changing optocoupler sensor 47 corresponds to the fourth position optocoupler 45 on the position sensing circuit board 22, the position-changing gear 60 meshes with the fourth transmission gear 57. At this time, the main motor 23 can drive the third pulley 30, the fourth pulley 31, the main drive spline shaft 53, and the position-changing gear 60 to rotate. The position-changing gear 60 drives the corresponding fourth transmission gear 57 to rotate. The fourth transmission gear 57 drives the fourth adapter pulley 64 and the fourth drive pulley 65, thereby driving the wire-punching rod 2 to rotate, which can activate the wire-punching function.

[0052] When the notch on the position-shifting optocoupler sensor 47 corresponds to the third position optocoupler 44 on the position sensing circuit board 22, the position-shifting gear 60 meshes with the third transmission gear 51. At this time, the main motor 23 can drive the third pulley 30, the fourth pulley 31, the main drive spline shaft 53, and the position-shifting gear 60 to rotate. The position-shifting gear 60 drives the corresponding third transmission gear 51 to rotate. The third transmission gear 51 drives the third adapter pulley 52, the first bevel gear 171, the second bevel gear 172, and the third drive bevel gear 17, thereby driving the cable tensioning rod 18 to rotate. During normal winding, the tension rod 18 swings to the right, corresponding to the upper and lower guide rail grooves. When the bobbin thread is fully wound, the tension rod 18 swings to the left, and the thread is clamped. At this time, the bobbin case guide rod 6 can be started to move, completing the winding and guiding work of the bobbin case guide rail groove after the bobbin case and bobbin assembly. During the movement of the bobbin case guide rod 6, because the source of the thread is clamped, no excess thread will be pulled out. At the same time, under the action of the torsion spring, the tension rod 18 will swing left and right with the operation of the bobbin case guide rod 6, keeping the thread in a taut state to ensure that the bobbin case guide rod 6 can complete its work smoothly.

[0053] When the notch on the position-changing optocoupler sensor 47 corresponds to the second position optocoupler 43 on the position sensing circuit board 22, the position-changing gear 60 meshes with the second transmission gear 55. The position-changing gear 60 drives the corresponding second transmission gear 55 to rotate. The second transmission gear 55 drives the second adapter pulley 66, the second drive bevel gear 67, and the second cylindrical gear 68 to rotate, thereby driving the second rack 69 and the winding position guide rod 7 to move left and right, thus controlling the left and right position of the line.

[0054] When the notch on the position-changing optocoupler sensor 47 corresponds to the first position optocoupler 42 on the position sensing circuit board 22, the position-changing gear 60 meshes with the first transmission gear 54. At this time, the main motor 23 can drive the third pulley 30, the fourth pulley 31, the main drive spline shaft 53, and the position-changing gear 60 to rotate. The position-changing gear 60 drives the corresponding first transmission gear 54 to rotate. The first transmission gear 54 drives the fifth pulley 32, the sixth pulley 33, the first adapter pulley 77, and the shuttle housing guide rod forward and backward movement screw 7. 8. Rotation, under the force of the moving nut 89 on the shuttle guide rod, drives the shuttle guide rod 6, the shuttle guide rod moving frame 79, the shuttle guide rod rotating wheel 85, the thread-pulling wheel opening pin 86, and the linear bearing 88 to move back and forth. This, in conjunction with the shuttle guide rod rotation drive motor controlling the rotation of pulley 36, pulley 39, and the shuttle guide rod rotation drive gear shaft 80, drives the rotation of the shuttle guide rod 6, the shuttle guide rod rotating wheel 85, and the thread-pulling wheel opening pin 86, completing the shuttle guide rod 6's shuttle guide work. Simultaneously, the thread-pulling wheel opening pin 86 moves back and forth to the thread-pulling wheel lever 94. One of the thread-pulling wheels is installed on the thread-pulling wheel lever 94, which is connected to the thread-pulling wheel closing spring 95. Rotation of the thread-pulling wheel lever 94 controls the opening and closing of the thread-pulling wheel opening and closing mechanism, facilitating the smooth entry and pulling of excess thread.

[0055] The above describes the working principle of a gear shifting mechanism with 5 shift positions.

[0056] Understandably, throughout the entire motion process, the rotation and stopping cycles of the main motor 23 are based on the angle between the teeth of the shift gear 60, so as to align with other gears during shifting and facilitate the shifting operation.

[0057] like Figures 20 to 23 As shown, the winding mechanism is driven by the winding drive motor 96 to rotate the wire pulling wheel drive shaft 82, which in turn drives the No. 8 pulley 37, the No. 9 pulley 38, and the winding rotor 81 to rotate. The winding is done in the forward direction and the wire pulling is done in the reverse direction.

[0058] The above description is merely a specific embodiment of the invention, but the scope of protection of the invention is not limited thereto. Those skilled in the art should understand that the invention includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the invention will be included within the scope of the claims.

Claims

1. A gear shifting mechanism, characterized in that, include: A shift gear assembly, comprising a shift gear shaft and a shift gear axially movably mounted on the shift gear shaft, wherein the shift gear is driven to rotate by the shift gear shaft; A transmission gear assembly, the transmission gear assembly including a transmission gear shaft and at least two transmission gears rotatably mounted on the transmission gear shaft, the transmission gear shaft and the modified gear shaft being parallel; A positioner actuator drives a positioner gear to move axially along the positioner gear shaft to change the working position and realize the separation or engagement of the positioner gear and the transmission gear.

2. The gear shifting mechanism according to claim 1, characterized in that, The gear shifting mechanism further includes a gear limiting block, which has limiting teeth extending axially along the shifting gear shaft. The limiting teeth have limiting notches. The gear limiting block is driven by the shifting driver to move axially synchronously with the shifting gear. The limiting teeth cooperate with the transmission gear to prevent the transmission gear from rotating when it is in a disengaged state. The limiting notches correspond to the axial position of the transmission gear in a meshed state to avoid the transmission gear in a meshed state.

3. The gear shifting mechanism according to claim 2, characterized in that, The transmission gear assembly has two transmission gear shafts arranged side by side. The modified gear shaft has two modified gears, and the two modified gears mesh with the transmission gears on the two transmission gear shafts respectively. When one of the modified gears meshes with the transmission gear on one of the transmission gear shafts, the other modified gear disengages from the transmission gear on the other transmission gear shaft.

4. The gear shifting mechanism according to claim 3, characterized in that, Two displacement gears are integrally and slidably mounted on the displacement gear shaft.

5. The gear shifting mechanism according to claim 1, characterized in that, The modified gear shaft is provided with a spline shaft, and the modified gear is provided with a spline groove that slides with the spline shaft.

6. The gear shifting mechanism according to claim 1, characterized in that, The displacement actuator includes a displacement motor and a displacement lead screw and nut assembly. The displacement motor drives the lead screw in the displacement lead screw and nut assembly to rotate. The nut in the displacement lead screw and nut assembly is connected to the displacement drive frame. The displacement drive frame is connected to the displacement gear.

7. The gear shifting mechanism according to claim 6, characterized in that, A shift transmission pulley assembly is provided between the shift motor and the shift lead screw.

8. The gear shifting mechanism according to claim 1, characterized in that, The gear shifting mechanism also includes a shifting sensor assembly for detecting the axial position of the shifting gear.

9. The gear shifting mechanism according to claim 8, characterized in that, The displacement sensor assembly includes a displacement optical coupler sensing sheet that moves axially with the displacement gear and at least two optical couplers provided at each station of the displacement gear, wherein the optical couplers cooperate with the displacement optical coupler sensing sheet.

10. An automatic bobbin winding and automatic shuttle assembly machine, characterized in that, Includes the gear shifting mechanism as described in any one of claims 1 to 9.

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