A transmission mechanism for a circular knitting machine

Abstract

This application provides a transmission mechanism for a circular knitting machine, including a large disc base. A large disc gear is rotatably mounted in a receiving groove on the large disc base and meshes with a drive gear. Several support shafts are provided around the receiving groove, and sleeves are movably mounted thereon. Gears are rotatably mounted on the outer periphery of the sleeves and mesh with the large disc gear. The multiple gears form a multi-point synchronous meshing structure with the large disc gear. The receiving groove also has a slot, and the large disc gear has a protrusion at the position corresponding to the slot. When the large disc gear is in the receiving groove, the protrusion is embedded in the slot, thereby supporting and limiting the large disc gear. One side of the slot has a groove extending into the interior of the large disc base and is equipped with an elastic pulley component. The elastic pulley component includes an elastic element, one end of which is connected to the inner wall of the groove, and the other end is connected to a bearing plate on which a roller component is mounted. When rotating, the elastic element can support the large disc gear and improve the stability of the large disc gear transmission.

Description

Technical Field

[0001] This application relates to the field of circular knitting machines, and more particularly to a transmission mechanism for circular knitting machines. Background Technology

[0002] The large disc gear transmission structure of a circular knitting machine is the core system for power transmission and motion control of the equipment. Its design directly affects the overall machine's operating accuracy, fabric quality, and production efficiency. However, the existing large disc gears transmit power through the meshing of the main drive gear, which is a single-sided partial contact. After long-term use, the weight of the large disc gear itself and the inertial force during rotation can cause radial displacement of the gear's central axis. This leads to the large disc gear shaking due to the deviation, which can easily cause misalignment between the needle cylinder and the cam seat, resulting in a decrease in transmission accuracy and thus affecting fabric quality. Utility Model Content

[0003] The purpose of this invention is to provide a transmission mechanism for a circular knitting machine to solve the above-mentioned problems.

[0004] The technical solution of this application is implemented as follows:

[0005] This application provides a transmission mechanism for a circular knitting machine, including a large disc base, a receiving groove on the large disc base, a large disc gear rotatably disposed on the receiving groove, and a drive gear rotatably disposed on the large disc base, the drive gear meshing with the large disc gear, and several annular slots evenly distributed along the circumference of the receiving groove are provided in the receiving groove.

[0006] A support shaft is provided in the annular slot, and a sleeve is movably installed on the support shaft. A gear is rotatably provided on the outer circumference of the sleeve. When the sleeve is installed on the support shaft, the gear meshes with the large disc gear.

[0007] The receiving groove also has a slot, and the large disc gear has a protrusion at the position corresponding to the slot. When the large disc gear is in the receiving groove, the protrusion is embedded in the slot.

[0008] A slot extending into the large plate base is provided on one side of the card slot. An elastic pulley component is provided in the slot. The elastic pulley component includes an elastic element. One end of the elastic element is connected to the inner wall of the slot, and the other end of the elastic element is connected to a support plate. A support with a support rod is provided on the side of the support plate away from the elastic element. A roller is rotatably mounted on the support rod. Part of the roller is located on the outside of the support. When the protrusion is inserted into the card slot, the outer periphery of the roller abuts against the protrusion.

[0009] In one embodiment, the outer periphery of the support shaft is provided with a threaded protrusion, and the inner wall of the sleeve is provided with a threaded groove corresponding to the threaded protrusion. Through the cooperation of the threaded protrusion and the threaded groove, the sleeve is threadedly connected to the support shaft.

[0010] The gear component moves closer to or further away from the end face of the receiving groove by rotating the sleeve component on the threaded support shaft.

[0011] In one embodiment, the large disc gear has a recessed portion, and the large disc base is also provided with grooves, which are provided in several places and evenly distributed along the circumference of the large disc base.

[0012] A connecting rod is movably mounted in the groove, with one end of the connecting rod located outside the groove and rotatably equipped with a turntable.

[0013] When the large disc gear is located on the large disc base, the outer periphery of the turntable part fits against the inner wall of the recess.

[0014] In one embodiment, side plates are provided on both sides of the slot, and guide rods are provided on the bearing plate at the positions corresponding to the two sets of side plates, with one end of the guide rod passing through the side plate.

[0015] By using elastic elements, the portion of the guide rod that passes through the side plate can be increased or decreased.

[0016] In one embodiment, a magnetic layer is provided on the groove, and a magnetic attraction part is provided at the bottom of the connecting rod that attracts the magnetic layer. Through the cooperation of the magnetic layer and the magnetic attraction part, the connecting rod is magnetically connected to the groove.

[0017] In one embodiment, a receiving plate is also provided on the outer periphery of the sleeve component, the receiving plate being located below the gear component, and the bottom end of the gear component being attached to the top end of the receiving plate.

[0018] In one embodiment, the large disc base also has a cutout for placing the drive shaft, the cutout being located on the side of the drive gear away from the large disc gear.

[0019] The advantages or beneficial effects of the above technical solutions include at least the following:

[0020] This application discloses a transmission mechanism for a circular knitting machine. A large disc gear is placed in a receiving groove within a large disc base. The receiving groove contains a slot, and the bottom of the large disc gear has a protrusion that matches the slot. The slot and protrusion work together to provide initial support for the large disc gear. Furthermore, sleeves mounted on a support shaft and equipped with gears are located around the receiving groove. Therefore, when the large disc gear is mounted on the large disc base, its outer circumference meshes with the drive gear and gear components. Several sleeves are distributed around the large disc gear, creating a multi-point synchronous meshing structure that disperses the driving force on the large disc gear. Simultaneously, an elastic pulley component located within the groove contacts the protrusion of the large disc gear through rollers, reducing friction during rotation and providing a limiting effect. This optimizes the transmission of the large disc gear, solving the problem of existing large disc gears that only achieve single, localized drive while lacking support in other areas, leading to deviations and wobbling. Attached Figure Description

[0021] The accompanying drawings illustrate exemplary embodiments of the present application and, together with the description thereof, serve to explain the principles of the present application. These drawings are included to provide a further understanding of the present application and are incorporated in and constitute a part of this specification.

[0022] Figure 1 A cross-sectional exploded view of the transmission mechanism according to an embodiment of this application is shown;

[0023] Figure 2 A structural schematic diagram of the transmission mechanism according to an embodiment of this application is shown from one perspective;

[0024] Figure 3 A partial cross-sectional view of the large tray base according to an embodiment of this application is shown;

[0025] Figure 4 A schematic diagram of another partial cross-sectional structure of the large disk base according to an embodiment of this application is shown;

[0026] Figure 5 A structural schematic diagram of the sleeve component according to an embodiment of this application is provided;

[0027] Figure 6 A schematic diagram of the structure of the large disc gear according to an embodiment of this application is shown;

[0028] Figure 7 Examples of this application are presented. Figure 1 Enlarged view of point A in the middle;

[0029] Figure 8 Examples of this application are presented. Figure 3 Enlarged view of point B in the middle;

[0030] Reference numerals: 1. Large plate base; 11. Receiving groove; 111. Slot; 112. Groove opening; 1121. Side plate; 12. Drive gear; 13. Annular slot; 14. Groove; 141. Magnetic layer; 15. Hollowed-out part;

[0031] 2. Large disc gear; 21. Protrusion; 22. Recess;

[0032] 3. Support shaft section; 31. Threaded protrusion;

[0033] 4. Sleeve components; 41. Gear components; 42. Threaded grooves; 43. Receiving plate;

[0034] 5. Elastic pulley components; 51. Elastic element; 52. Bearing plate; 521. Guide rod; 53. Support; 531. Support rod; 54. Roller components;

[0035] 6. Connecting rod; 61. Turntable component; 62. Magnetic suction part. Detailed Implementation

[0036] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While some embodiments of this application are shown in the drawings, it should be understood that this application can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this application. It should be understood that the drawings and embodiments of this application are for illustrative purposes only and are not intended to limit the scope of protection of this application.

[0037] It should be noted that, where there is no conflict, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0038] It should be understood that the term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc., mentioned in this application are used only to distinguish different devices, modules, or units, and are not intended to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0039] It should be noted that the terms "a" and "a number" used in this application are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0040] The names of the messages or information exchanged between multiple devices in the embodiments of this application are for illustrative purposes only and are not intended to limit the scope of these messages or information.

[0041] Reference Figures 1-7 A transmission mechanism for a circular knitting machine includes a large disc base 1, a receiving groove 11 on the large disc base 1, a large disc gear 2 rotatably mounted on the receiving groove 11, and a drive gear 12 rotatably mounted on the large disc base 1. The drive gear 12 meshes with the large disc gear 2. The receiving groove 11 of the large disc base 1 provides a precise installation space for the large disc gear 2, ensuring that the large disc gear 2 is always within a preset trajectory during rotation. The meshing of the drive gear 12 and the large disc gear 2 directly realizes power transmission. Several annular slots 13 are evenly distributed along the circumference of the receiving groove 11.

[0042] A support shaft 3 is provided within the annular slot 13. A sleeve 4 is movably mounted on the support shaft 3. A gear 41 is rotatably mounted on the outer circumference of the sleeve 4. The gear 41 is movably fitted onto the sleeve 4, so when the sleeve 4 rotates, the gear 41 remains stationary. When the sleeve 4 is mounted on the support shaft 3, the gear 41 meshes with the large disc gear 2. The sleeve 4, movably mounted on the support shaft 3, can change the meshing state between the gear 41 and the large disc gear 2 by adjusting its position. Several gears 41 are distributed around the large disc gear 2, forming a multi-point synchronous meshing structure. This design can distribute the driving force on the large disc gear 2, avoid excessive load on a single meshing point, reduce wear on the gear tooth surface, and improve the efficiency of power transmission.

[0043] The receiving groove 11 also has a slot 111. The large disc gear 2 is provided with a protrusion 21 corresponding to the position of the slot 111. When the large disc gear 2 is located in the receiving groove 11, the protrusion 21 is embedded in the slot 111. The protrusion 21 embedded in the slot 111 can strictly limit the displacement of the large disc gear 2 in the radial direction, and ensure that the meshing clearance between the large disc gear 2, the drive gear 12 and the gear component 41 is consistent. This precise positioning avoids poor meshing caused by gear misalignment, reduces the impact and wear between gears, and improves the operating accuracy of the transmission mechanism.

[0044] A slot 112 extending into the interior of the large plate base 1 is provided on one side of the slot 111. An elastic pulley component 5 is provided in the slot 112, including an elastic element 51. The elastic element 51 is a pressure spring or a telescopic spring as used in the prior art. One end of the elastic element 51 is connected to the inner wall of the slot 112, and the other end is connected to a support plate 52. A support 53 with a support rod 531 is provided on the side of the support plate 52 away from the elastic element 51. A roller component 54 is rotatably mounted on the support rod 531, with a portion of the roller component 54 located outside the support 53. When the protrusion 21 is inserted into the slot 111... The outer periphery of the roller component 54 abuts against the protrusion 21. The elastic component 51 uses its own elasticity to keep the roller component 54 abutting against the protrusion 21. When the large disc gear 2 rotates, if the protrusion 21 produces a small radial displacement due to load fluctuations or installation errors, the elastic component 51 will absorb the impact energy through extension and contraction, avoiding direct rigid collision between the protrusion 21 and the inner wall of the slot 111, reducing wear on both and extending the service life of the component. At the same time, the contact between the roller component 54 and the protrusion 21 is rolling friction, which can significantly reduce the friction between the two compared to sliding friction, making the rotation of the large disc gear 2 smoother and reducing power loss.

[0045] Based on the above structure, by placing the large disc gear 2 in the receiving groove 11 of the large disc base 1, and embedding the protrusion 21 of the large disc gear 2 into the slot 111 of the receiving groove 111, the large disc gear 2 is initially positioned. When the large disc gear 2 is located in the receiving groove 11, the outer circumference of the large disc gear 2 meshes with the drive gear 12 and the gear 41 on the sleeve 4. Since the sleeve 4 is movably mounted on the support shaft 3, the meshing height between the gear 41 and the large disc gear 2 can be changed. When the large disc gear 2 rotates with the cooperation of the drive gear 12, the large disc gear 2 can drive the other gears 41 to rotate synchronously. Through several gears 41, the force on the large disc gear 2 during rotation can be more balanced, reducing deformation or vibration caused by excessive local force. Furthermore, an elastic pulley component 5 is provided in the slot 112 of the slot 111. When the protrusion 21 is inserted into the slot 111, the support 53 for mounting the roller component 54 can move towards the position of the protrusion 21 under the cooperation of the bearing plate 52 and the elastic component 51, and make the roller component 54 abut against the protrusion 21, so that part of the rotation mode of the large disc gear 2 is converted into rolling friction, thereby improving the stability during rotation. Through the cooperation of the sleeve component 4 installed on the support shaft 3 and the elastic pulley component 5, it is possible to achieve limiting support from both sides of the large disc gear 2, avoid excessive load on a single meshing point, reduce wear on the gear tooth surface, improve the efficiency of power transmission, and solve the problem that the existing large disc gear 2 can only make partial contact on one side when rotating, which easily leads to deviation in rotation.

[0046] In one embodiment, reference is made to Figure 1 , Figure 3 and Figure 5 The outer periphery of the support shaft 3 is provided with a threaded protrusion 31, and the inner wall of the sleeve 4 is provided with a threaded groove 42 corresponding to the threaded protrusion 31. Through the cooperation of the threaded protrusion 31 and the threaded groove 42, the sleeve 4 is threadedly connected to the support shaft 3, realizing the position adjustment of the gear 41. By rotating the sleeve 4 on the support shaft 3, the gear 41 moves closer to or away from the end face of the receiving groove 11. When the sleeve 4 rotates on the support shaft 3, the linear displacement conversion characteristics of the threaded transmission can be used to precisely control the gear 41 to move closer to or away from the end face of the receiving groove 11, thereby adjusting the meshing depth or pressure of the gear 41 with other gears in the transmission system. When the circular knitting machine is running, the gear meshing state can be optimized according to different working conditions, reducing wear between gears, reducing transmission noise, and ensuring the stability of power transmission, avoiding transmission failure caused by improper meshing.

[0047] In one embodiment, reference is made to Figure 1 , Figure 2 , Figure 3 and Figure 8 The large disc gear 2 has a recessed portion 22, and the large disc base 1 is also provided with grooves 14. Several grooves 14 are provided and are evenly distributed along the circumference of the large disc base 1. The grooves 14 and the slots 112 are perpendicularly distributed on the large disc base 1, and the grooves 14 and the slots 112 are interlaced. A connecting rod 6 is movably installed on the groove 14. One end of the connecting rod 6 is located outside the groove 14 and a turntable component 61 is rotatably provided. When the large disc gear 2 is located on the large disc base 1, the outer periphery of the turntable component 61 fits against the inner wall of the recessed portion 22. The turntable component 61 is used to adjust the large disc gear. The rotation of gear 2 is assisted by guidance and limit. In actual operation, when the large disc gear 2 rotates on the large disc seat 1, the turntable part 61 will rotate with the movement of the large disc gear 2 and always fit against the inner wall of the recess 22. This can effectively limit the swaying of the large disc gear 2 in the radial direction. The effect of this design is to significantly improve the coaxiality and stability of the rotation of the large disc gear 2, avoid the decrease in transmission accuracy caused by the offset of the large disc gear 2, reduce the impact during gear meshing, extend the service life of the large disc gear 2 and related transmission components, and ensure the uniformity of the knitting process of the circular knitting machine.

[0048] A magnetic layer 141 is provided on the groove 14, and a magnetic suction part 62 is provided at the bottom of the connecting rod 6, which attracts the magnetic layer 141. When the magnetic suction part 62 and the magnetic layer 141 approach each other, they can attract each other. Through the cooperation of the magnetic layer 141 and the magnetic suction part 62, the connecting rod 6 is magnetically connected to the groove 14, realizing the magnetic connection between the connecting rod 6 and the groove 14. This allows for quick installation, fixing, and disassembly of the connecting rod 6. The magnetic connection method does not require a complex mechanical locking structure, which can make the connecting rod 6 firmly installed in the groove 14, preventing it from loosening or falling off due to vibration during the rotation of the large disc gear 2. At the same time, when maintenance or replacement of the connecting rod 6 is required, only a certain external force needs to be applied to separate the magnetic suction part 62 from the magnetic layer 141. The operation is convenient, improves the maintenance efficiency of the transmission mechanism, reduces the difficulty of disassembly and assembly, and ensures the stability of the connecting rod 6 during operation, indirectly ensuring the guiding effect of the turntable 61 on the large disc gear 2.

[0049] In one embodiment, reference is made to Figure 1 , Figure 4 and Figure 7 Side plates 1121 are provided on both sides of the slot 112. The side plates 1121 are located on both sides of the elastic element 51. Guide rods 521 are provided on the bearing plate 52 corresponding to the positions of the two sets of side plates 1121. One end of the guide rod 521 passes through the side plate 1121. The guide rod 521 is used to provide precise guidance for the movement of the bearing plate 52 and achieves buffer adjustment through the elastic element 51. Through the cooperation of the elastic element 51, the part of the guide rod 521 passing through the side plate 1121 can be increased or decreased. The cooperation between the guide rod 521 and the side plate 1121 can strictly limit the movement trajectory of the bearing plate 52 and prevent it from deviating or tilting during movement. The elastic force of the elastic element 51 can enable the bearing plate 52 to achieve adaptive adjustment when subjected to external force. During the operation of the transmission mechanism, it can absorb the impact force generated by load fluctuation, protect the bearing plate 52 and connected components, and at the same time ensure the smoothness and accuracy of the movement of the bearing plate 52, and ensure that the related transmission links are always in a stable state.

[0050] In one embodiment, reference is made to Figure 1 , Figure 2 and Figure 5 The outer periphery of the sleeve 4 is also provided with a receiving plate 43, which is located below the gear 41. The bottom end of the gear 41 is attached to the top end of the receiving plate 43. The receiving plate 43 provides bottom support for the gear 41, shares the axial pressure borne by the gear 41, and avoids the gear 41 relying solely on the connection part with the sleeve 4 to bear the force, thereby reducing stress concentration at the connection part. Its effect is to enhance the stability of the gear 41 installation, prevent the gear 41 from axially shifting or deforming when rotating at high speed or bearing a large load, ensure the accuracy of the gear 41 meshing with other gears, extend the service life of the gear 41, and maintain the efficient operation of the transmission system.

[0051] In one embodiment, reference is made to Figure 1 and Figure 2 The large plate base 1 also has a hollowed-out section 15 for placing the drive shaft. The hollowed-out section 15 is designed to optimize the spatial layout of the transmission mechanism and provide dedicated installation space for the drive shaft. The hollowed-out section 15 is located on the side of the drive gear 12 away from the large plate gear 2, so that the drive shaft avoids the meshing area of ​​the drive gear 12 and the large plate gear 2, avoiding spatial interference between the drive shaft and other components. At the same time, arranging the drive shaft on the side of the drive gear 12 away from the large plate gear 2 makes the power transmission path simpler, reduces energy loss during transmission, improves the space utilization of the transmission mechanism, makes the overall structure more compact, facilitates the installation, inspection and maintenance of the drive shaft, ensures efficient power transmission from the drive shaft to the drive gear 12, and provides reasonable spatial layout support for the stable operation of the circular knitting machine.

[0052] In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0053] Those skilled in the art should understand that the above embodiments are merely for illustrative purposes and are not intended to limit the scope of this application. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of this application.

Claims

1. A transmission mechanism for a circular knitting machine, comprising a large disc base, the large disc base having a receiving groove, a large disc gear rotatably disposed on the receiving groove, and a drive gear rotatably disposed on the large disc base, the drive gear meshing with the large disc gear, characterized in that: The receiving groove is provided with several annular slots evenly distributed along the circumference of the receiving groove. A support shaft is provided in the annular slot, and a sleeve is movably installed on the support shaft. A gear is rotatably provided on the outer circumference of the sleeve. When the sleeve is installed on the support shaft, the gear meshes with the large disc gear. The receiving groove also has a slot, and the large disc gear has a protrusion corresponding to the position of the slot. When the large disc gear is located in the receiving groove, the protrusion is embedded in the slot. One side of the slot has a groove extending into the interior of the large plate base. The groove is equipped with an elastic pulley component, which includes an elastic element. One end of the elastic element is connected to the inner wall of the groove, and the other end of the elastic element is connected to a support plate. The side of the support plate away from the elastic element is equipped with a support with a support rod. A roller is rotatably mounted on the support rod, with a portion of the roller located outside the support. When the protrusion is inserted into the slot, the outer periphery of the roller abuts against the protrusion.

2. The transmission mechanism for a circular knitting machine according to claim 1, characterized in that: The outer periphery of the support shaft is provided with a threaded protrusion, and the inner wall of the sleeve is provided with a threaded groove corresponding to the threaded protrusion. Through the cooperation of the threaded protrusion and the threaded groove, the sleeve is threadedly connected to the support shaft. The gear component moves closer to or further away from the end face of the receiving groove by rotating the sleeve component along the thread of the support shaft.

3. The transmission mechanism for a circular knitting machine according to claim 1, characterized in that: The large disc gear has a recessed portion, and the large disc base is also provided with grooves. Several grooves are provided and are evenly distributed along the circumference of the large disc base. A connecting rod is movably mounted in the groove, one end of which is located outside the groove and is rotatably mounted on a turntable. When the large disc gear is located on the large disc base, the outer periphery of the turntable component fits against the inner wall of the recess.

4. The transmission mechanism for a circular knitting machine according to claim 1, characterized in that: Side plates are provided on both sides of the slot, and guide rods are provided on the bearing plate at the positions corresponding to the two sets of side plates, with one end of the guide rod passing through the side plate; The amount of the guide rod passing through the side plate can be increased or decreased by the cooperation of the elastic element.

5. The transmission mechanism for a circular knitting machine according to claim 3, characterized in that: A magnetic layer is provided on the groove, and a magnetic attraction part is provided at the bottom of the connecting rod that attracts the magnetic layer. Through the cooperation of the magnetic layer and the magnetic attraction part, the connecting rod is magnetically connected to the groove.

6. The transmission mechanism for a circular knitting machine according to claim 1, characterized in that: The outer periphery of the sleeve is also provided with a receiving plate, which is located below the gear component, and the bottom end of the gear component is attached to the top end of the receiving plate.

7. The transmission mechanism for a circular knitting machine according to claim 1, characterized in that: The large disc base also has a hollowed-out portion for placing the drive shaft, and the hollowed-out portion is located on the side of the drive gear away from the large disc gear.

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