A transmission mechanism for a circular knitting machine
By using a split-drive and layered transmission mechanism, the problem of loose layout in traditional circular knitting machines has been solved, achieving more efficient power transmission and a more compact component layout, thus improving knitting accuracy and ease of maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUAN ZHOU VILIKE MASCH IND TRADE CO LTD
- Filing Date
- 2025-08-26
- Publication Date
- 2026-06-30
Smart Images

Figure CN224430900U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of disc knitting equipment, and in particular to a transmission mechanism for a disc knitting machine. Background Technology
[0002] The transmission mechanism of a circular knitting machine is the core component of the equipment's operation, and its transmission efficiency and stability directly affect the knitting effect and the machine's lifespan. Traditional transmission mechanisms often use a single drive shaft combined with a complex gear set design, resulting in a loose layout of the mounting bases for components such as the cylinder and needle plate with the transmission shaft, occupying a large space and making maintenance inconvenient. Utility Model Content
[0003] Therefore, in view of the above problems, this utility model provides a transmission mechanism for a circular knitting machine, which mainly solves the problems of loose layout, large space occupation, and inconvenient maintenance of the transmission mechanism in the prior art.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A transmission mechanism for a circular knitting machine includes a frame, a transmission box, a drive motor, a first transmission shaft, a second transmission shaft, a first transmission assembly, a second transmission assembly, a large disc gear, a large tripod gear, a first gear, a second gear, a large disc, a large tripod, a first connector, a second connector, bearings, a needle plate seat, a center core, and a locking assembly. The transmission box is mounted on the frame, the first transmission shaft is rotatably mounted on the transmission box, the drive motor is connected to the first transmission shaft via the first transmission assembly, and the second transmission shaft is rotatably mounted on the frame. The first transmission shaft is connected to the second transmission shaft via the second transmission assembly. The first gear and the second gear are respectively located on the upper and lower parts of the second transmission shaft. The large disc is located in the middle of the frame and is used to install the lower saddle. The large disc gear is rotatably mounted on the frame and meshes with the first gear for installing the syringe. The large tripod is located on the upper part of the frame, and the large tripod gear is rotatably mounted on the large tripod. The needle plate seat is connected to the large tripod gear through the first connecting member for installing the needle plate. The second connecting member is sleeved on the first connecting member through a bearing. The middle core is located on the second connecting member for installing the upper saddle. The second connecting member is connected to the large tripod through a locking assembly.
[0006] Furthermore, the upper end of the first connector is connected to the large ding gear by a first bolt, and the lower end of the first connector is connected to the needle plate seat by a second bolt. The needle plate seat has a recessed groove in the middle for the first connector to be inserted.
[0007] Furthermore, the large cauldron gear has a first through hole in the middle, and an inverted "U"-shaped mounting component is provided at the first through hole. The opening of the mounting component faces downward, and a second through hole is provided in the middle of the mounting component for the first connector to be inserted.
[0008] Furthermore, the upper part of the outer surface of the second connector is provided with an external thread, and the upper part of the cauldron and near the second connector is provided with a mounting groove. An anti-slip seat is embedded in the mounting groove, and the anti-slip seat is provided with a first internal thread that mates with the external thread.
[0009] Furthermore, the locking assembly includes a locking seat distributed on the upper side of the cauldron, a second internal thread disposed on the locking seat and engaging with the external thread, and a locking bolt connecting the locking seat and the cauldron.
[0010] Furthermore, the upper end of the frame is equipped with a large tripod cover.
[0011] By adopting the aforementioned technical solution, the beneficial effects of this utility model are as follows: The transmission mechanism of this circular knitting machine is driven separately by the first and second transmission shafts. The first and second gears on the second transmission shaft are respectively matched with the large disc gear, the large tripod gear, and the needle plate seat in a layered layout, which realizes the independent transmission of the needle cylinder and the needle plate. This optimizes the power transmission path, reduces the load on a single shaft by dual-axis division of labor, and reduces vibration and wear. Furthermore, the needle cylinder and the needle plate are independently installed on the large disc gear and the large tripod gear, avoiding motion interference and improving knitting accuracy. The first connecting piece and the second connecting piece are connected by bearing sleeves, and the core is set on the second connecting piece for installing the upper saddle. This makes the component layout compact, reduces the space occupied, improves space utilization, and enhances the convenience of maintenance. At the same time, it can install more auxiliary accessories, which facilitates the intelligent improvement of the equipment. Attached Figure Description
[0012] Figure 1 This is a cross-sectional structural schematic diagram of an embodiment of the present utility model;
[0013] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle. Detailed Implementation
[0014] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.
[0015] The embodiment of this utility model is as follows:
[0016] refer to Figure 1 and Figure 2As shown, a transmission mechanism for a circular knitting machine includes a frame 1, a transmission box 2, a drive motor 3, a first transmission shaft 4, a second transmission shaft 5, a first transmission assembly 6, a second transmission assembly 7, a large disc gear 8, a large tripod gear 9, a first gear 10, a second gear 11, a large disc 12, a large tripod 13, a first connecting piece 14, a second connecting piece 15, a bearing 16, a needle plate seat 17, a center core 18, and a locking assembly 19. The transmission box 2 is mounted on the frame 1, and the first transmission shaft 4 is rotatably mounted on the transmission box 2. The drive motor 3 is connected to the first transmission shaft 4 via the first transmission assembly 6, and the second transmission shaft 5 is rotatably mounted on the frame 1. The first transmission shaft 4 is connected to the second transmission shaft 5 via the second transmission assembly 7. 5. The first gear 10 and the second gear 11 are respectively located on the upper and lower parts of the second transmission shaft 5. The large disc 12 is located in the middle of the frame 1 and is used to install the lower saddle. The large disc gear 8 is rotatably mounted on the frame 1 and meshes with the first gear 10 for installing the syringe. The large tripod 13 is located on the upper part of the frame 1. The large tripod gear 9 is rotatably mounted on the large tripod 13. The needle plate seat 17 is connected to the large tripod gear 9 through the first connecting member 14 for installing the needle plate. The second connecting member 15 is sleeved on the first connecting member 14 through the bearing 16. The middle core 18 is located on the second connecting member 15 for installing the upper saddle. The second connecting member 15 is connected to the large tripod 13 through the locking assembly 19.
[0017] The first transmission component 14 and the second transmission component 15 mentioned above are gear components or pulley components, and in this embodiment they are pulley components.
[0018] The transmission mechanism of this circular knitting machine is driven separately by the first transmission shaft 4 and the second transmission shaft 5. The first gear 10 and the second gear 11 on the second transmission shaft 5 are respectively matched with the large disc gear 8, the large tripod gear 9 and the needle plate seat 17 in a layered layout, so as to realize the independent transmission of the needle cylinder and the needle plate. This optimizes the power transmission path, reduces the load on the single shaft by dual-axis division of labor, and reduces vibration and wear. Furthermore, the needle cylinder and the needle plate are independently installed on the large disc gear 8 and the large tripod gear 9 to avoid motion interference and improve knitting accuracy. The first connecting piece 14 and the second connecting piece 15 are sleeved by the bearing 16, and the core is set on the second connecting piece 15 for mounting the upper saddle. This makes the component layout compact, reduces the space occupied, improves the space utilization rate, and improves the convenience of maintenance. At the same time, it can install more auxiliary accessories, which facilitates the intelligent improvement of the equipment.
[0019] In this embodiment, the upper end of the first connector 14 is connected to the large gear 9 by a first bolt 20, and the lower end of the first connector 14 is connected to the needle plate seat 17 by a second bolt 21. The needle plate seat 17 has a recessed relief groove 22 in the middle for the first connector 14 to be embedded. The bolt connection facilitates disassembly and maintenance, and the relief groove 22 accurately positions the first connector 14, reducing installation errors. The split connection structure avoids welding deformation and extends the service life of the components. Furthermore, the large gear 9 has a first through hole 23 in the middle, and the first through hole 23 has an inverted "U"-shaped structure. Mounting member 24, the opening of mounting member 24 faces downward, the middle of mounting member 24 is provided with a second through hole 25 for the first connector 14 to be inserted. The U-shaped mounting member 24 forms a limiting structure to prevent the first connector 14 from radially offset and improve transmission stability. The second through hole 25 cooperates with the relief groove 22 to achieve dual positioning, further reducing the impact of assembly tolerance. At the same time, the installation position of the first connector 14 can be changed by the first bolt 20 and the second thread 21, thereby adjusting the height position of the needle plate seat. In this embodiment, the first connector 14 and the second connector 15 are tubular structures.
[0020] Furthermore, the upper part of the outer surface of the second connector 15 is provided with an external thread 26, and the upper part of the large cauldron 13 near the second connector 15 is provided with a mounting groove. An anti-slip seat 27 is embedded in the mounting groove. The anti-slip seat 27 is provided with a first internal thread 28 that mates with the external thread 26. The threaded engagement provides a self-locking function to prevent the second connector 15 from loosening due to high-speed rotation. The locking assembly 19 includes a locking seat 191 distributed on the upper side of the large cauldron 13, a second internal thread 192 provided on the locking seat 191 and mates with the external thread 26, and a locking bolt 193 connecting the locking seat 191 and the large cauldron 13. After the locking seat 191 is threadedly engaged with the second connector 15, it is locked to the large cauldron 13 by the locking bolt 193, forming a double fixation. The locking force can be adjusted to adapt to the vibration frequency under different working conditions and avoid resonance leading to structural failure.
[0021] In this embodiment, the upper end cover of the frame 1 is provided with a large cauldron cover 29. The closed design prevents dust from entering the gear meshing area, ensures lubrication effect, reduces operating noise, and improves operational safety.
[0022] Furthermore, the terms "first" and "second" 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.
[0023] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0025] Although the invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the invention without departing from the spirit and scope of the invention as defined in the appended claims, all of which shall be within the scope of protection of the invention.
Claims
1. A transmission mechanism for a circular knitting machine, characterized in that: The system includes a frame, a transmission box, a drive motor, a first transmission shaft, a second transmission shaft, a first transmission assembly, a second transmission assembly, a large disc gear, a large tripod gear, a first gear, a second gear, a large disc, a large tripod, a first connector, a second connector, bearings, a pin plate seat, a center core, and a locking assembly. The transmission box is mounted on the frame, and the first transmission shaft is rotatably mounted on the transmission box. The drive motor is connected to the first transmission shaft via the first transmission assembly. The second transmission shaft is rotatably mounted on the frame, and the first transmission shaft is connected to the second transmission shaft via the second transmission assembly. The first gear and the second gear are respectively located on the upper and lower parts of the second drive shaft. The large disc is located in the middle of the frame and is used to install the lower saddle. The large disc gear is rotatably mounted on the frame and meshes with the first gear for installing the syringe. The large tripod is located on the upper part of the frame, and the large tripod gear is rotatably mounted on the large tripod. The needle plate seat is connected to the large tripod gear through the first connecting member for installing the needle plate. The second connecting member is sleeved on the first connecting member through a bearing. The middle core is located on the second connecting member for installing the upper saddle. The second connecting member is connected to the large tripod through a locking assembly.
2. The transmission mechanism of the circular knitting machine according to claim 1, characterized in that: The upper end of the first connector is connected to the large ding gear by a first bolt, and the lower end of the first connector is connected to the needle plate seat by a second bolt. The needle plate seat has a recessed groove in the middle for the first connector to be inserted.
3. The transmission mechanism of the circular knitting machine according to claim 2, characterized in that: The large cauldron gear has a first through hole in the middle, and an inverted "U"-shaped mounting component is provided at the first through hole. The opening of the mounting component faces downward, and a second through hole is provided in the middle of the mounting component for the first connector to be inserted.
4. The drive mechanism for a circular knitting machine according to any one of claims 1 to 3, characterized in that: The upper part of the outer surface of the second connector is provided with an external thread, and the upper part of the cauldron and near the second connector is provided with a mounting groove. An anti-slip seat is embedded in the mounting groove, and the anti-slip seat is provided with a first internal thread that mates with the external thread.
5. The transmission mechanism of the circular knitting machine according to claim 4, characterized in that: The locking assembly includes a locking seat distributed on the upper side of the cauldron, a second internal thread provided on the locking seat and engaging with the external thread, and a locking bolt connecting the locking seat and the cauldron.
6. The transmission mechanism of the circular knitting machine according to claim 1, characterized in that: The upper end of the frame is covered with a large cauldron lid.