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] The present invention belongs to the technical field of embroidery equipment, and particularly relates to an automatic bobbin thread winding and automatic bobbin case assembling machine.

Background Art

[0002] At present, some automatic bobbin thread winding and automatic bobbin case assembling machines have appeared on the market. Referring to the Chinese invention patent application with the publication number CN111379094 A, it discloses a bobbin case and bobbin core separation type automatic thread removing and winding integrated device and process method, aiming to overcome the deficiencies in the prior art that the remaining thread removal and rewinding work of the bobbin core, as well as the bobbin case winding work of the bobbin core and bobbin case assembly, need to be completed manually, and provides a series of automated work for bobbin core remaining thread removal, bobbin core winding, bobbin case winding, bobbin core and bobbin case assembly, thread clamping, and thread breaking, replacing the cumbersome work originally completed manually with an automated device. Its structure includes a base and a main board arranged on the base. The base is provided with a grasping device at a relative position of the main board. The main board is provided with a winding device, a thread removing device, a wire supply device, and a thread breaking mechanism; the winding device includes a winding main shaft that can drive the bobbin core to rotate, a main shaft drive motor that drives the winding main shaft to rotate, a movable top head, and a rotating winding device; the thread removing device includes a thread removing wheel assembly, a separating wire deflecting piece, and a wire sucking mechanism.

[0003] Among them, a motor needs to be set for each of the winding device, the thread removing device, the wire supply device, etc. There are many motor components and the cost is relatively high. In order to reduce the number of motors, the applicant plans to share one motor for multiple devices. In order to achieve sharing one motor for the winding device and the like, it is necessary to switch the transmission relationship between the main motor and multiple devices.

Summary of the Invention

[0004] Aiming at the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a gear modification mechanism, an automatic bobbin thread winding and automatic bobbin case assembling machine, to solve 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 technical problem, the present invention adopts the following technical solutions:

[0006] First, a gear modification mechanism is provided, including:

[0007] A modified gear assembly, the modified gear assembly includes a modified gear shaft and a modified gear axially movably installed on the modified gear shaft, and the modified gear is driven to rotate by the modified gear shaft;

[0008] A transmission gear assembly, the transmission gear assembly includes a transmission gear shaft and at least two transmission gears rotatably installed on the transmission gear shaft, and the transmission gear shaft is parallel to the modified gear shaft;

[0009] A position-changing driver drives a position-changing gear to move axially along a position-changing gear shaft to change work positions, so as to realize the separation or meshing of the position-changing gear and a transmission gear.

[0010] Preferably, the gear position-changing mechanism further includes a gear limiting block. The gear limiting block is provided with limiting teeth extending axially along the position-changing gear shaft. The limiting teeth are provided with limiting notches. The gear limiting block is driven by the position-changing driver to axially move synchronously with the position-changing gear. The limiting teeth are in limiting cooperation with the transmission gear to prevent the transmission gear in a separated state from rotating with the position-changing gear. The limiting notches correspond to the axial positions of the transmission gear in a meshing state to avoid the transmission gear in a meshing state.

[0011] Preferably, two transmission gear shafts are arranged side by side in the transmission gear assembly. Two position-changing gears are arranged on the position-changing gear shaft, and the two position-changing gears are respectively meshed with the transmission gears on the two transmission gear shafts. When one position-changing gear is meshed with the transmission gear on one transmission gear shaft, the other position-changing gear is separated from the transmission gear on the other transmission gear shaft.

[0012] Preferably, the two position-changing gears are integrally and slidably arranged on the position-changing gear shaft.

[0013] Preferably, the position-changing gear shaft is provided with a spline, and the position-changing gear is provided with a spline groove that slidably cooperates with the spline.

[0014] Preferably, the position-changing driver includes a position-changing motor and a position-changing screw-nut assembly. The position-changing motor drives the screw in the position-changing screw-nut assembly to rotate. The nut in the position-changing screw-nut assembly is connected to a position-changing driving frame, and the position-changing driving frame is connected to the position-changing gear.

[0015] Preferably, a position-changing belt pulley assembly is arranged between the position-changing motor and the position-changing screw.

[0016] Preferably, the gear position-changing mechanism further includes a position-changing sensor assembly for detecting the axial position of the position-changing gear.

[0017] Preferably, the position-changing sensor assembly includes a position-changing optocoupler sensing piece that axially moves with the position-changing gear and at least two optocouplers arranged corresponding to each work position of the position-changing gear. The optocouplers cooperate with the position-changing optocoupler sensing piece.

[0018] In addition, the present invention also provides an automatic bobbin thread winding and automatic shuttle shell assembling machine, including the above-mentioned gear position-changing mechanism.

[0019] The present invention adopts the above technical solutions and has the following technical effects:

[0020] The main motor drives the profile shifted gear shaft to rotate. In order to achieve driving multiple devices with one main motor, profile shifting is carried out using a profile shifted gear assembly. Among them, the profile shifted gear is axially movably installed on the profile shifted gear shaft. The profile shifted gear is driven by the profile shifted gear shaft to rotate, and is driven by a profile shifting driver to move axially along the profile shifted gear shaft to change the working position, so as to realize the separation or engagement of the profile shifted gear and the transmission gear. The profile shifted gear mechanism can smoothly achieve profile shifting drive, with reliable profile shifting and a long service life.

[0021] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.

Description of the Drawings

[0022] The present invention will be further described below in conjunction with the drawings:

[0023] Figure 1 It is a schematic diagram of the overall structure of the automatic bobbin thread winding and automatic shuttle case assembling machine of the present invention;

[0024] Figure 2 It is a schematic diagram of a partially enlarged structure of the automatic bobbin thread winding and automatic shuttle case assembling machine of the present invention;

[0025] Figure 3 It is a schematic diagram of one state of the automatic bobbin thread winding and automatic shuttle case assembling machine of the invention;

[0026] Figure 4 It is a schematic diagram of one state of the automatic bobbin thread winding and automatic shuttle case assembling machine of the present invention;

[0027] Figure 5 It is a schematic diagram of one state of the automatic bobbin thread winding and automatic shuttle case assembling machine of the present invention;

[0028] Figure 6 It is a schematic diagram of one state of the automatic bobbin thread winding and automatic shuttle case assembling machine of the present invention;

[0029] Figure 7 It is a schematic diagram of a partial structure of the automatic bobbin thread winding and automatic shuttle case assembling machine of the present invention;

[0030] Figure 8 It is a schematic diagram of a partial structure of the automatic bobbin thread winding and automatic shuttle case assembling machine of the present invention;

[0031] Figure 9 It is a schematic diagram of a partial structure of the automatic bobbin thread winding and automatic shuttle case assembling machine of the present invention;

[0032] Figure 10 It is a schematic diagram of a partial structure of the automatic bobbin thread winding and automatic shuttle case assembling machine of the present invention;

[0033] Figure 11It is a schematic diagram of the partial structure of the automatic bobbin winding and automatic shuttle case assembling machine of the present invention;

[0034] Figure 12 It is a schematic diagram of the setting structure of the optocoupler and the optocoupler sensing sheet;

[0035] Figure 13 It is a schematic diagram of the structure of the gear modification mechanism;

[0036] Figure 14 It is an exploded schematic diagram of the gear modification mechanism;

[0037] Figure 15 It is a schematic diagram of the structure of the up and down movement mechanism of the wire guiding rod at the winding position;

[0038] Figure 16 It is a schematic diagram of the structure of the wire punching mechanism;

[0039] Figure 17 It is a schematic diagram of the structure of the left and right movement mechanism of the wire guiding rod at the winding position;

[0040] Figure 18 It is a schematic diagram of the structure of the wire tensioning rod swing mechanism;

[0041] Figure 19 It is a schematic diagram of the structure of the wire tensioning rod swing mechanism;

[0042] Figure 20 It is a schematic diagram of the structure of the winding and pulling wire components;

[0043] Figure 21 It is a schematic diagram of the structure of the winding and pulling wire components;

[0044] Figure 22 It is a schematic diagram of the structure of the winding and pulling wire components;

[0045] Figure 23 It is a schematic diagram of the structure of the winding mechanism;

[0046] Reference numerals: 100 - wire, 200 - frame, 300 - wire reel, 400 - wire support rod, 500 - detouring mechanism, 600 - winding device, 700 - storage tray rack device, 800 - manipulator device, 900 - waste collection bag;

[0047] 1 - Vacuum suction pipe, 2 - Thread laying rod, 3 - Thread pulling wheel opening and closing mechanism, 4 - Scissor mechanism, 5 - Winding mechanism, 6 - Bobbin case wire guiding rod, 7 - Winding position wire guiding rod, 8 - Wire quantity detection mechanism, 9 - Pressing wire mechanism, 10 - Hook wire mechanism, 11 - Spool clamp, 12 - Bobbin and bobbin case assembly, 13 - Manipulator grasping part, 14 - Manipulator control motor, 15 - Bobbin pressing guide wheel, 16 - Manipulator position control motor, 17 - Third driving bevel gear, 171 - First bevel gear, 172 - Second bevel gear, 18 - Wire tensioning rod, 21 - Position changing motor, 22 - Position induction circuit board, 23 - Main motor; 28 - First position changing belt pulley, 29 - Second belt pulley, 30 - Third belt pulley, 31 - Fourth belt pulley, 32 - Fifth belt pulley, 33 - Sixth belt pulley, 36 - Seventh belt pulley, 37 - Eighth belt pulley, 38 - Ninth belt pulley, 39 - Tenth belt pulley, 42 - First position optocoupler, 43 - Second position optocoupler, 44 - Third position optocoupler, 45 - Fourth position optocoupler, 46 - Fifth position optocoupler, 47 - Position changing optocoupler sensing piece, 48 - Position changing lead screw, 49 - Position changing drive frame, 491 - Drive fork, 492 - Limit block fixing part, 50 - Gear limit block 1, 501 - Limit tooth, 502 - Limit notch, 511 - Transmission gear shaft, 51 - Third transmission gear, 52 - Third transfer belt pulley, 521 - Driving bevel gear, 53 - Main driving spline shaft, 54 - First transmission gear, 55 - Second transmission gear, 56 - Position changing lead screw nut assembly, 57 - Fourth transmission gear, 58 - Fifth transmission gear, 59 - Gear limit block 2, 60 - Position changing gear, 601 - Position changing fork groove, 602 - Position changing gear shaft, 603 - Spline, 61 - Fifth transfer belt pulley, 62 - Fifth bevel gear, 63 - Up and down linear transmission lead screw nut assembly, 64 - Fourth transfer belt pulley, 65 - Fourth driving belt pulley, 66 - Second transfer belt pulley, 67 - Second driving bevel gear, 68 - Second cylindrical gear, 69 - Second rack, 77 - First transfer belt pulley, 78 - Bobbin case wire guiding rod front and back moving lead screw, 79 - Bobbin case wire guiding rod moving frame, 80 - Bobbin case wire guiding rod rotation driving gear shaft, 81 - Winding rotor, 82 - Thread pulling wheel driving shaft, 83 - Rotor driving belt pulley, 84 - Bobbin case wire guiding rod rotation driving motor, 85 - Bobbin case wire guiding rod rotating wheel, 86 - Thread pulling wheel opening pin, 87 - Linear shaft, 88 - Linear bearing part, 89 - Bobbin case wire guiding rod front and back moving nut, 91 - Bearing 1, 92 - Bearing 2, 93 - Bearing 3; 94 - Thread pulling wheel lever, 95 - Thread pulling wheel closing tension spring, 96 - Winding driving motor.

Detailed implementation manners

[0048] The technical solutions of the embodiments of the present invention will be explained and illustrated below with reference to the accompanying drawings of the embodiments of the present invention. However, the following embodiments are only the preferred embodiments of the present invention and not all of them. Based on the embodiments in the implementation manners, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present invention.

[0049] Those skilled in the art can understand that, without conflict, the features in the following embodiments and implementation manners can be combined with each other.

[0050] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. For example, the terms indicating orientation or positional relationship such as "upper", "lower", "front", "rear", etc. are only based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as a limitation to the present invention.

[0051] In the present invention, unless otherwise clearly defined and limited, terms such as "installed", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature can include the direct contact between the first and second features, or can also include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0053] In addition, terms such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second" can explicitly or implicitly include at least one such feature.

[0054] Such as Figure 1As shown in the figure, the overall structure of the automatic bottom thread winding and automatic shuttle shell assembling machine includes a frame 200. The frame is provided with a table board. Above the table board, there are a thread support rod 400, a detouring mechanism 500, a winding device 600, a storage tray rack device 700, and a manipulator device 800. Below the table board, there are a thread spool 300 and a waste collection bag 900. The thread 100 is led out from the thread spool 300 upwards through the thread support rod 400, then passes through the detouring mechanism 500, and finally winds around the winding device 600.

[0055] Among them, the storage tray rack device 700 stores multiple storage trays, including storage trays for used bobbin and shuttle shell assemblies 12, and also including storage trays for bobbin and shuttle shell assemblies 12 with the bottom thread wound. The manipulator device 800 is provided with a manipulator gripping component 13, a manipulator control motor 14, and a manipulator position control motor 16. The manipulator control motor 14 is used to control the manipulator gripping component 13 to perform the gripping action, and the manipulator position control motor 16 is used to control the manipulator gripping component 13 to move in multiple directions.

[0056] As Figure 2 shown in the figure, the winding device 600 includes a vertical movement mechanism of the winding position guide rod 7, a horizontal movement mechanism of the winding position guide rod 7, a wire laying mechanism, a swinging mechanism of the wire tensioning rod 18, a front and back movement mechanism of the shuttle shell guide rod, a closing and opening mechanism 3 of the wire pulling wheel, as well as a winding mechanism 5, a wire quantity detection mechanism 8, etc. In addition, there are also a wire pressing mechanism 9 and a thread hooking mechanism 10 that cooperate with the winding device 600 to work, and a scissors mechanism 4 for cutting the wire. The vertical movement mechanism of the winding position guide rod 7 is used to drive the winding position guide rod 7 to move up and down, the horizontal movement mechanism of the winding position guide rod 7 is used to drive the winding position guide rod 7 to move left and right, the wire laying mechanism is used to drive the wire laying rod 2 to rotate, the swinging mechanism of the wire tensioning rod 18 is used to drive the wire tensioning rod 18 to swing, the front and back movement mechanism of the shuttle shell guide rod is used to drive the wire pulling wheel to move back and forth, and the winding mechanism 5 is used for winding the bobbin.

[0057] Among them, the winding mechanism 5 is provided with a winding wheel and a presser bobbin guide wheel 15 arranged in the same axis direction relative to the winding wheel. The closing and opening mechanism 3 of the wire pulling wheel is provided with two wire pulling wheels that can be opened and closed.

[0058] After threading the wire, as Figure 3 shown in the figure, the manipulator device 800 takes out the used bobbin and shuttle shell assembly 12 from the storage tray and places it on the winding wheel of the winding mechanism 5. As Figure 4 shown in the figure, at this time, the manipulator device 800 grabs the shuttle shell and moves it backward to separate the shuttle shell from the bobbin. The wire laying rod 2 rotates one week to draw out the wire connecting the bobbin and the shuttle shell from the shuttle shell wire channel. The vacuum suction pipe 1 is started to suck the drawn wire end into the vacuum suction pipe, and the closing and opening mechanism 3 of the wire pulling wheel closes to clamp the wire. Figure 5As shown, the presser bobbin guide wheel 15 moves to the concentric position with the winding wheel, pressing the bobbin. At this time, the winding wheel rotates in reverse to drive the thread pulling wheel to operate, and the auxiliary vacuum suction pipe 1 pulls out the waste thread on the bobbin and puts it into the waste material collection bag 900.

[0059] The thread amount detection mechanism 8 moves towards the bobbin to detect the thread amount situation of the bobbin. When it detects that the waste thread on the bobbin has been completely drawn out, the winding mechanism 5 stops operating. The presser bobbin guide wheel 15 retracts to leave a certain distance from the bobbin. The wire guiding rod 7 at the winding position moves to move the threaded wire to the position where it can just clamp the wire when the presser bobbin guide wheel 15 presses the bobbin. At this time, the presser bobbin guide wheel 15 presses the threaded wire and the bobbin, and the winding mechanism 5 (winding wheel) starts to rotate forward to wind the wire around the bobbin. As Figure 6 shown, when the thread amount detection mechanism 8 detects that the bobbin is full, the manipulator grabs the bobbin case and sets the bobbin into it. At this time, the wire guiding rod 6 of the bobbin case will pour the wire into the wire guiding groove of the bobbin case according to the wire loading method of the sewing equipment bobbin case, completing the assembly of the bobbin case and bobbin. Then the manipulator grabs the bobbin case and bobbin assembly and places it back on the storage tray. At this time, the wire pressing mechanism 9 is driven by the cylinder to press the thread end, and the thread hooking mechanism 10 hooks the thread into the thread clamping device 11 of the tray. The scissors of the scissor mechanism 4 cut it off, completing the work of drawing, winding, and assembling a bobbin case and bobbin.

[0060] After returning the bobbin case and bobbin assembly to the storage tray, the storage tray rotates one station, and the winding and assembling work of the next bobbin case and bobbin can be carried out. When the winding and assembling work of all the bobbin cases and bobbins on a storage tray is completed, the entire storage tray rack will rotate one station to carry out the winding and assembling work of the bobbin cases and bobbins on the next storage tray.

[0061] In the prior art, the up-and-down movement mechanism of the wire guiding rod at the winding position, the thread hitting mechanism, the swinging mechanism of the thread tensioning rod, the left-and-right movement mechanism of the wire guiding rod at the winding position, and the front-and-back movement mechanism of the wire guiding rod of the bobbin case are all driven by a single motor separately, resulting in too many motors. To solve the problem of high cost caused by too many motors. As Figures 1 to 23 shown, the above-mentioned up-and-down movement mechanism of the wire guiding rod 7 at the winding position, the thread hitting mechanism, the swinging mechanism of the thread tensioning rod 18, the left-and-right movement mechanism of the wire guiding rod 7 at the winding position, and the thread pulling wheel opening and closing mechanism 3 are driven by a main motor 23, and the main motor 23 drives the above-mentioned mechanisms through a gear modification mechanism.

[0062] The gear modification mechanism includes:

[0063] A modified gear assembly, the modified gear assembly includes a modified gear shaft 602 and a modified gear 60 axially movably installed on the modified gear shaft. The modified gear 60 is driven to rotate by the modified gear shaft 602;

[0064] A transmission gear assembly, which includes a transmission gear shaft 511 and at least two transmission gears rotatably mounted on the transmission gear shaft, and the transmission gear shaft 511 is parallel to the profile shifted gear shaft 602;

[0065] A profile shifting driver, which drives the profile shifted gear 60 to axially move along the profile shifted gear shaft 602 to change the working position and realize the separation or engagement between the profile shifted gear and the transmission gear.

[0066] Among them, the up-and-down movement mechanism of the wire guiding rod 7 at the winding position includes a fifth transfer pulley 61, a fifth bevel gear 62, and an up-and-down linear transmission screw-nut assembly 63. The up-and-down linear transmission screw-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 with a fifth transmission pulley. There is a transmission belt between the fifth transmission pulley and the fifth transfer pulley 61. The bevel gear coaxially arranged with the fifth transfer pulley meshes with the fifth bevel gear 62. The fifth bevel gear is arranged on the up-and-down linear transmission screw and drives the screw to rotate. The up-and-down linear transmission nut drives the wire guiding rod 7 at the winding position to move up and down.

[0067] Among them, the wire punching mechanism includes a fourth transfer pulley 64 and a wire punching rod drive shaft. The transmission gear assembly includes a fourth transmission gear 57, which is integrally connected with a fourth transmission pulley. There is a transmission belt between the fourth transmission pulley and the fourth transfer pulley. There is a transmission belt assembly between the fourth transfer pulley shaft and the wire punching rod drive shaft. The transmission belt assembly includes a fourth drive pulley 65 arranged on the wire punching rod drive shaft, and the wire punching rod drive shaft drives the wire punching rod 2 to rotate.

[0068] Among them, the swinging mechanism of the wire tensioning rod 18 includes a third transfer pulley 52, a third bevel gear shaft, and a third driving bevel gear 17. The two ends of the third bevel gear shaft are respectively provided with a first bevel gear 171 and a second bevel gear 172. The third transfer pulley 52 is integrally connected with a driving bevel gear 521. The transmission gear assembly includes a third transmission gear 51, which is integrally connected with a third transmission pulley. There is a transmission belt between the third transmission pulley and the third transfer pulley 52. The driving bevel gear 521 integrally arranged on the third transfer pulley meshes with the first bevel gear 171 at the first end of the third bevel gear shaft. The second bevel gear 172 at the second end of the third bevel gear shaft meshes with the third driving bevel gear 17. In addition, the wire tensioning rod 18 is connected to the wire tensioning rod drive shaft. The wire tensioning rod drive shaft is connected to or coaxially arranged with the third driving bevel gear 17. The wire tensioning rod 18 is connected with a wire tensioning rod torsion spring. The third driving bevel gear 17 can drive the wire tensioning rod 18 to swing.

[0069] Among them, the left and right movement mechanism of the wire rod 7 at the winding position includes a second transfer pulley 66, a second driving bevel gear 67, a second cylindrical gear 68, and a second rack 69. The transmission gear assembly includes a second transmission gear 55. The second transmission gear 55 is integrally connected with a second transmission pulley. A transmission belt is provided between the second transmission pulley and the second transfer pulley 66. The bevel gear integrally provided on the second transfer pulley meshes with the second driving bevel gear 67. The second driving bevel gear is coaxially provided with a second cylindrical gear 68. The second cylindrical gear 68 meshes with the second rack 69. The second rack 69 drives the wire rod 7 at the winding position to move horizontally left and right.

[0070] Among them, the front and back movement mechanism of the bobbin case wire rod includes a first transfer pulley 77 and a first transmission pulley assembly. The transmission gear assembly includes a first transmission gear 54. The first transmission gear 54 is integrally connected with a first transmission pulley. A transmission belt is provided between the first transmission pulley and the first transfer pulley 77. The first transfer pulley 77 drives the first transmission pulley assembly. The first transmission pulley assembly includes a fifth pulley 32, a sixth pulley 33, and a transmission belt connecting the fifth pulley 32 and the sixth pulley 33. Among them, the fifth pulley 32 is coaxially arranged with the first transfer pulley 77 and can be an integral structure. The first transmission pulley assembly is connected to the front and back movement screw rod assembly of the bobbin case wire rod. Specifically, the sixth pulley 33 is connected to the front and back movement screw rod 78 of the bobbin case wire rod. The front and back movement nut 89 of the bobbin case wire rod is connected to the front and back movement frame 79 of the bobbin case wire rod. The front and back movement frame 79 of the bobbin case wire rod is connected with a bobbin case wire rod rotating wheel 85. The bobbin case wire rod rotating wheel 85 is slidably installed on the bobbin case wire rod rotation drive gear shaft 80. The bobbin case wire rod rotating wheel 85 is connected with a bobbin case wire rod 6. The front and back movement frame 79 of the bobbin case wire rod drives the bobbin case wire rod rotating wheel 85 to axially slide on the bobbin case wire rod rotation drive gear shaft 80. Therefore, the front and back movement of the bobbin case wire rod 6 is realized.

[0071] In addition, the bobbin case wire guide rod rotating gear shaft 80 is driven to rotate by a bobbin case wire guide rod rotating drive motor 84. A second belt pulley assembly is provided between the bobbin case wire guide rod rotating drive motor 84 and the bobbin case wire guide rod rotating gear shaft 80. A winding rotor 81 is coaxially connected to the bobbin case wire guide rod rotating gear shaft 80, and the winding rotor 81 can rotate relatively independently. The second belt pulley assembly includes a seventh belt pulley 36 coaxially connected to the bobbin case wire guide rod rotating gear shaft, so that the second belt pulley assembly can drive the bobbin case wire guide rod rotating gear shaft 80 to rotate. The bobbin case wire guide rod rotating gear shaft 80 is supported by a second bearing 92. The winding mechanism includes a winding rotor 81, a winding drive motor 96, and a rotor drive pulley 83. The winding rotor shaft passes through the central hollow part of the bobbin case wire guide rod rotating gear shaft 80 and is supported by bearings, specifically including a first bearing 91 and a third bearing 93. The winding drive motor 96 drives the winding rotor shaft through the rotor drive pulley 83 and a transmission belt. In addition, a linear shaft 87 and a linear bearing member 88 are connected to the bobbin case wire guide rod front and rear moving frame 79 to provide linear guidance for the bobbin case wire guide rod front and rear moving frame 79.

[0072] A third belt pulley assembly is provided between the winding rotor shaft and the thread pulling wheel drive shaft 82. The third belt pulley assembly includes an eighth belt pulley 37 provided on the winding rotor shaft and a ninth belt pulley 38 provided on the thread pulling wheel drive shaft 82. A transmission belt is provided between the eighth belt pulley 37 and the ninth belt pulley 38. In this way, the winding rotor shaft can drive the thread pulling wheel drive shaft to rotate through the third belt pulley assembly, and the thread pulling wheel drive shaft drives one of the thread pulling wheels to rotate.

[0073] Specifically, the bobbin case wire guide rod rotating wheel 85 is provided with an annular groove, and the bobbin case wire guide rod front and rear moving frame 79 is provided with a driving fork, and the driving fork is engaged with the annular groove. With this engagement structure, the driving fork can drive the bobbin case wire guide rod rotating wheel 85 to slide axially and does not affect the rotation of the bobbin case wire guide rod rotating wheel 85.

[0074] Furthermore, the bobbin case wire guide rod rotating wheel 85 is connected with a thread pulling wheel opening pin 86. The thread pulling wheel opening pin 86 rotates with the bobbin case wire guide rod rotating wheel and drives the opening of the thread pulling wheel opening and closing mechanism. This facilitates the smooth entry of the remaining thread and the pulling of the thread.

[0075] Further, the gear modification mechanism further includes a gear limit block. The gear limit block is provided with a limit tooth 501 extending along the axial direction of the modified gear shaft. The limit tooth 501 is provided with a limit notch 502. The gear limit block is driven by a modification driver to axially move synchronously with the modified gear 60. The limit tooth 501 is in limit cooperation with the transmission gear to prevent the transmission gear in a separated state from the modified gear from rotating. The limit notch 502 corresponds to the axial position of the transmission gear in an engaged state to avoid the rotation of the transmission gear in an engaged state. Therefore, the gear limit block can limit the rotation of the transmission gear in a separated state from the modified gear, so that the modified gear can be guaranteed to be accurately engaged with the transmission gear after modification; at the same time, the transmission gear in an engaged state is avoided through the limit notch, and the transmission gear can rotate normally.

[0076] If multiple transmission gears are arranged on the same transmission gear shaft, for example, more than four, it will cause the transmission gear shaft to be too long. However, due to space limitations, it is often difficult to implement the actual technical solution. To avoid such space limitations, in this embodiment, two transmission gear shafts 511 are arranged side by side in the transmission gear assembly. Two modified gears 60 are provided on the modified gear shaft, and the two modified gears 60 are respectively engaged with the transmission gears on the two transmission gear shafts 511. Moreover, when one modified gear is engaged with the transmission gear on one transmission gear shaft, the other modified gear is separated from the transmission gear on the other transmission gear shaft. That is, after each modification of the modified gear mechanism, only one modified gear can drive one of the transmission gears. Two gear limit blocks are provided corresponding to the transmission gears on the two transmission gear shafts 511, namely, gear limit block one 50 and gear limit block two 59.

[0077] Further, a spline 603 is provided on the modified gear shaft 602, constituting a main drive spline shaft 53. The modified gear 60 is provided with a spline groove that slidably cooperates with the spline.

[0078] Specifically, the position-changing driver includes a position-changing motor 21 and a position-changing screw-nut assembly 56. The position-changing motor 21 drives the rotation of a position-changing screw 48 in the position-changing screw-nut assembly. A position-changing nut in the position-changing screw-nut assembly is connected to a position-changing drive frame 49, and the position-changing drive frame 49 is connected to a position-changing gear 60. A first gear limiting block 50 and a second gear limiting block 59 are both installed on the position-changing drive frame 49. The position-changing drive frame 49 is provided with a limiting block fixing part 492 for fixing the first gear limiting block 50 and the second gear limiting block 59, and bolt fixing can be adopted. A position-changing belt pulley assembly is provided between the position-changing motor 21 and the position-changing screw 48. The position-changing belt pulley assembly includes a first belt pulley 28 connected to the output shaft of the position-changing motor 21, a second belt pulley 29 connected to the position-changing screw in the position-changing screw-nut assembly 56, and a position-changing transmission belt connecting the first belt pulley 28 and the second belt pulley 29.

[0079] Furthermore, two position-changing gears 60 are integrally and slidably arranged on a position-changing gear shaft 602. And a position-changing fork groove 601 is provided between the two position-changing gears 60. The position-changing drive frame 49 is provided with a drive fork 491, and the drive fork 491 is matched with the position-changing fork groove 601. With this matching structure, the drive fork can drive the axial sliding of the position-changing gear shaft and will not affect the rotation of the position-changing gear.

[0080] It can be understood that the above-mentioned transmission gears are all integrally provided with belt pulleys to facilitate transmission through the belt pulley assembly.

[0081] Furthermore, the gear position-changing mechanism further includes a position-changing sensor assembly for detecting the axial position of the position-changing gear 60. The position-changing sensor assembly includes a position-changing opto-coupler sensing piece 47 that moves axially with the position-changing gear and at least two opto-couplers provided corresponding to each working position of the position-changing gear. The opto-couplers are matched with the position-changing opto-coupler sensing piece. The position-changing opto-coupler sensing piece 47 is installed on the moving position-changing drive frame 49. In this embodiment, corresponding to the five working positions of the position-changing gear, five opto-couplers are provided, namely a first-position opto-coupler 42, a second-position opto-coupler 43, a third-position opto-coupler 44, a fourth-position opto-coupler 45, and a fifth-position opto-coupler 46. The above five opto-couplers are arranged on a position sensing circuit board 22.

[0082] Among them, a main transmission pulley assembly is provided between the main motor 23 and the main drive spline shaft 53. The main transmission pulley assembly includes a third pulley 30, a fourth pulley 31 and a corresponding main transmission 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 transmission pulley assembly, and drives the indexing gear 60 to rotate through the spline. After the equipment is powered on, the indexing motor 21 drives the first pulley 28 and the second pulley 29, and then drives the indexing lead screw 48 to rotate. Under the force of the indexing lead screw nut assembly 56, it drives the indexing drive frame 49, the first gear limit block 50, the second gear limit block 59 and the indexing gear 60 to move. At the same time, the indexing opto-coupler sensing piece 47 installed on the indexing drive frame 49 will also move accordingly. At this time, if the notch on the indexing opto-coupler sensing piece 47 aligns with a certain sensor (the first-position opto-coupler 42, the second-position opto-coupler 43, the third-position opto-coupler 44, the fourth-position opto-coupler 45, the fifth-position opto-coupler 46) on the position sensing circuit board 22, the equipment control system can determine the working position of the indexing gear at this time, and then proceed with subsequent operations.

[0083] When the notch on the indexing opto-coupler sensing piece 47 corresponds to the fifth-position opto-coupler 46 on the position sensing circuit board 22, the indexing gear 60 correspondingly meshes with the fifth transmission gear 58 at this time. Then the main motor 23 can drive the third pulley 30, the fourth pulley 31, the main drive spline shaft 53 and the indexing gear 60 to rotate. The indexing gear 60 can drive the corresponding fifth transmission gear 58 to rotate. The fifth transmission gear 58 drives the fifth transfer pulley 61, the fifth bevel gear 62 and the lead screw in the up-and-down linear transmission lead screw nut assembly 63 to rotate, and then controls the up-and-down movement of the wire winding position guide rod 7, playing a role in controlling the up-and-down position of the wire.

[0084] When the notch on the indexing opto-coupler sensing piece 47 corresponds to the fourth-position opto-coupler 45 on the position sensing circuit board 22, the indexing gear 60 correspondingly meshes with the fourth transmission gear 57 at this time. Then the main motor 23 can drive the third pulley 30, the fourth pulley 31, the main drive spline shaft 53 and the indexing gear 60 to rotate. The indexing gear 60 drives the corresponding fourth transmission gear 57 to rotate. The fourth transmission gear 57 drives the fourth transfer pulley 64 and the fourth drive pulley 65, and then drives the wire punching rod 2 to rotate, and the wire punching function can be started.

[0085] When the notch on the displacement optocoupler sensing piece 47 corresponds to the No. 3 position optocoupler 44 on the position sensing circuit board 22, at this time, the displacement gear 60 corresponds to and meshes with the third transmission gear 51. At this time, the main motor 23 can drive the No. 3 pulley 30, the No. 4 pulley 31, the main drive spline shaft 53, and the displacement gear 60 to rotate. The displacement gear 60 drives the corresponding third transmission gear 51 to rotate. The third transmission gear 51 drives the third transfer pulley 52, the first bevel gear 171, the second bevel gear 172, and the third drive bevel gear 17, thereby driving the wire tensioning rod 18 to swing left and right. During normal winding, the wire tensioning rod 18 swings to the right and corresponds to the upper and lower wire grooves. When the bobbin thread is full, the wire tensioning rod 18 swings to the left, and then the wire is clamped. At this time, the shuttle shell wire guide rod 6 can be started to complete the wire winding and guiding work of the shuttle shell wire groove after the shuttle shell and bobbin are assembled. During the movement of the shuttle shell wire guide rod 6, because the source of the wire is clamped, no extra wire will be drawn out. At the same time, under the action of the torsion of the torsion spring, the wire tensioning rod 18 will swing left and right during the working process of the shuttle shell wire guide rod 6, so that the wire is in a tensioned state to ensure the smooth completion of the work of the shuttle shell wire guide rod 6.

[0086] When the notch on the displacement optocoupler sensing piece 47 corresponds to the No. 2 position optocoupler 43 on the position sensing circuit board 22, at this time, the displacement gear 60 corresponds to and meshes with the second transmission gear 55. The displacement gear 60 drives the corresponding second transmission gear 55 to rotate. The second transmission gear 55 drives the second transfer pulley 66, the second drive bevel gear 67, and the second cylindrical gear 68 to rotate, thereby driving the second rack 69 and the wire winding position guide rod 7 to move left and right, playing a role in controlling the left and right positions of the wire.

[0087] When the notch on the displacement optocoupler sensing piece 47 corresponds to the first-position optocoupler 42 on the position sensing circuit board 22, at this time, the displacement gear 60 corresponds to and 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 displacement gear 60 to rotate. The displacement 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 transfer pulley 77, and the front and rear movement screw rod 78 of the bobbin thread guide rod to rotate. Under the force of the front and rear movement nut 89 of the bobbin thread guide rod, it drives the bobbin thread guide rod 6, the bobbin thread guide rod moving frame 79, the bobbin thread guide rod rotating wheel 85, the thread pulling wheel opening pin 86, and the linear bearing member 88 to move back and forth. In cooperation with the rotation of the seventh pulley 36, the tenth pulley 39, and the bobbin thread guide rod rotation drive gear shaft 80 controlled by the bobbin thread guide rod rotation drive motor, it drives the rotation actions of the bobbin thread guide rod 6, the bobbin thread guide rod rotating wheel 85, and the thread pulling wheel opening pin 86 to complete the bobbin thread guiding work of the bobbin thread guide rod 6. At the same time, 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. The thread pulling wheel lever 94 is connected with a thread pulling wheel closing tension spring 95. The rotation of the thread pulling wheel lever 94 can control the opening and closing of the thread pulling wheel opening and closing mechanism, facilitating the smooth entry and pulling of the surplus thread.

[0088] The above is the working principle of the gear displacement mechanism with 5-speed displacement.

[0089] It can be understood that during the entire movement process, the rotation stop cycle of the main motor 23 is based on the angle between the teeth of the displacement gear 60, so as to align with other gears during displacement and facilitate the displacement work.

[0090] As Figures 20 to 23 shown, the winding work of the winding mechanism is completed by the winding drive motor 96 driving the thread pulling wheel drive shaft 82 to rotate, and then driving the eighth pulley 37, the ninth pulley 38, and the winding rotor 81 to rotate, for the work of forward winding and reverse pulling of the surplus thread.

[0091] The above is only the specific implementation manner of the invention, but the protection scope of the invention is not limited thereto. Those skilled in the art should understand that the invention includes but is not limited to the content described in the drawings and the above specific implementation manner. Any modification that does not deviate from the functional and structural principles of the invention will be included in the scope of the claims.

Claims

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

2. The gear shifting mechanism according to claim 1, characterized in that: The gear shifting mechanism also includes a gear limit block, which is provided with a limit tooth extending axially along the shifting gear shaft, and the limit tooth is provided with a limit notch. The gear limit block is driven by the shifting driver to move axially synchronously with the shifting gear, and the limit tooth cooperates with the transmission gear to prevent the transmission gear in a separated state from the shifting gear from rotating, and the limit notch corresponds to the axial position of the transmission gear in a meshing state to avoid the transmission gear in a meshing state.

3. The gear shifting mechanism according to claim 2, characterized in that: The transmission gear assembly is provided with two transmission gear shafts in parallel, and the shift gear shaft is provided with two shift gears, and the two shift gears are respectively meshed with the transmission gears on the two transmission gear shafts, and when one of the shift gears is meshed with the transmission gear on one of the transmission gear shafts, the other shift gear is separated from the transmission gear on the other transmission gear shaft.

4. The gear shifting mechanism according to claim 3, characterized in that: The two shift gears are integrally and slidably arranged on the shift gear shaft.

5. The gear shifting mechanism according to claim 1, characterized in that: The shift gear shaft is provided with a spline shaft, and the shift gear is provided with a spline groove which is slidably matched with the spline shaft.

6. The gear shifting mechanism according to claim 1, characterized in that: The position changing driver comprises a position changing motor and a position changing lead screw nut assembly. The position changing motor drives the lead screw in the position changing lead screw nut assembly to rotate. The nut in the position changing lead screw nut assembly is connected to a position changing driving frame, and the position changing driving frame is connected to the position changing gear.

7. The gear shifting mechanism according to claim 6, characterized in that: A position-changing transmission pulley assembly is provided between the position-changing motor and the position-changing 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 comprises a displacement optical coupling sensing piece that moves axially with the displacement gear and at least two optical couplers arranged corresponding to each station of the displacement gear, and the optical couplers cooperate with the displacement optical coupling sensing piece.

10. Automatic bobbin winding and bobbin case assembly machine, characterized in that: It comprises the gear shifting mechanism as described in any one of claims 1 to 9.

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