Circular knitting machine with automatic lubrication
By designing an automatic lubrication mechanism on the circular knitting machine, the main shaft drives the transmission components to achieve self-lubrication of the main shaft, solving the problem of easy omissions in manual lubrication and extending the service life of the equipment.
Patent Information
- Application Number
- CN202521359992.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-05
- Estimated Expiration
- 2035-06-30
AI Technical Summary
Existing circular knitting machines rely on manual lubrication, which is prone to oversight, leading to increased wear on the main shaft and affecting the equipment's performance.
Design an automatic lubrication mechanism that uses a spindle to drive an arc-shaped rack to rotate intermittently, and a transmission component to deliver lubricating oil from an oil reservoir to the spindle, thus achieving self-lubrication.
It achieves self-lubrication of the spindle, avoids the omissions of manual lubrication, extends the service life of the equipment, and improves the equipment's performance.
Smart Images

Figure CN224325509U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of circular knitting machines, specifically a circular knitting machine with an automatic lubrication mechanism. Background Technology
[0002] The circular knitting machine, also known as a circular weft knitting machine, is an important production equipment in the textile industry. It consists of a frame, transmission system, and cylinder assembly, and features high output, low noise, and a high safety factor. It knits fabrics through circular motion, enabling the creation of complex patterns and textures to meet diverse product needs. It comes in two types: single-jersey and double-jersey. Single-jersey circular knitting machines are suitable for producing simple knitwear, while double-jersey machines can produce more complex and structurally diverse products. Its applications are wide-ranging, playing a crucial role in the production of various textiles, from knitwear, shirts, and underwear to outerwear. It is also widely used in the production of highly elastic knitted outerwear, underwear, and sportswear, resulting in products that combine comfort, fit, style, and versatility.
[0003] An existing patent (publication number: CN220202157U) describes a circular knitting machine that can reduce the impact of a swaying protective door on workers handling fabrics. However, this circular knitting machine usually requires manual application of lubricating oil to the main shaft when needed. Relying on manual lubrication is prone to oversights, leading to increased wear on the main shaft and equipment damage, resulting in poor performance. Utility Model Content
[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a circular knitting machine with an automatic lubrication mechanism, which effectively solves the problem that existing circular knitting machines usually require manual spraying of lubricating oil on the main shaft when needed. However, relying on manual lubrication is prone to omissions, which leads to increased wear of the main shaft, damage to the equipment, and poor performance.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a circular knitting machine with an automatic lubrication mechanism, comprising a main body of the circular knitting machine, a main shaft fixedly installed at the output end of the main body, a needle plate fixedly installed at the top of the main shaft, an arc-shaped rack fixedly installed on the surface of the main shaft, an oil storage tank fixedly installed on one side of the top of the main body of the circular knitting machine, a feed cylinder fixedly installed at the lower part of one side of the oil storage tank, an oil outlet fixedly installed at the lower part of the circumferential surface of the feed cylinder, a feed plate rotatably installed inside the feed cylinder, a plurality of feed grooves being formed on the circumferential surface of the feed plate, a transmission component being provided on one side of the arc-shaped rack, the transmission component being connected to the feed plate for transmission, and when the arc-shaped rack rotates, the power is output to the feed plate through the transmission component, causing the feed plate to rotate and release lubricating oil to achieve self-lubrication.
[0006] Preferably, the transmission assembly includes a first gear, which is meshed with one side of an arc-shaped rack. The top of the first gear is rotatably connected to one side of an oil tank via a positioning bracket. A driving bevel gear is fixedly installed at the bottom of the first gear. A driven bevel gear is meshed with one side of the surface of the driving bevel gear. A shaft is fixedly installed on one side of the driven bevel gear. A bushing is rotatably installed on the surface of the shaft. One side of the bushing is fixedly connected to one side of the oil tank.
[0007] Preferably, a turntable is fixedly installed at one end of the shaft, a pin is rotatably installed on the upper part of one side of the turntable, a hollow strip is sleeved on the surface of the pin, a transmission rack is fixedly installed in the middle of the bottom of the hollow strip, a second gear is meshed on one side of the lower end of the transmission rack, a rotating shaft is fixedly installed on one side of the second gear, the surface of the rotating shaft is rotatably connected to the middle of one side of the feed cylinder through a sealed bearing, and one end of the rotating shaft extends into the interior of the feed cylinder and is fixedly connected to the feed plate.
[0008] Preferably, both ends of the hollow strip are fixedly installed with sliding sleeves, and sliding rods are inserted inside the two sliding sleeves. The bottom ends of the two sliding rods are fixedly connected to the top of the main body of the circular knitting machine.
[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: when the main body of the circular knitting machine is running, the needle plate is rotated by the main shaft for processing; while the main shaft is rotating, the arc rack intermittently drives the first gear to rotate along the positioning frame; when the first gear rotates, the driven bevel gear is driven to rotate by the active bevel gear; when the driven bevel gear rotates, the shaft is driven to rotate inside the bushing; when the shaft rotates, the pin is driven to rotate by the turntable.
[0010] When the pin rotates, the rotational motion is converted into horizontal motion through the cooperation of the hollow strip, thereby driving the hollow strip to move vertically back and forth. When the hollow strip moves, it causes the two sliding sleeves to slide along the surfaces of the two sliding rods, increasing the stability of the hollow strip's movement. The vertical back and forth movement of the hollow strip drives the transmission rack to move vertically back and forth. When the transmission rack moves vertically back and forth, it drives the rotating shaft to rotate inside the sealed bearing through the second gear. When the rotating shaft rotates, it drives the feeding plate to rotate, thereby intermittently sending the lubricating oil in the oil tank to the oil outlet through the feeding groove, thus achieving a self-lubricating effect on the main shaft. This allows the main shaft of this circular knitting machine to be self-lubricated, eliminating the need for manual lubrication, avoiding omissions, and providing excellent performance. Attached Figure Description
[0011] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0012] In the attached diagram:
[0013] Figure 1 This is a schematic diagram of the structure of the circular knitting machine with an automatic lubrication mechanism according to this utility model;
[0014] Figure 2 This is a partial structural diagram of the circular knitting machine with an automatic lubrication mechanism according to this utility model. Figure 1 ;
[0015] Figure 3 This is a partial structural diagram of the circular knitting machine with an automatic lubrication mechanism according to this utility model. Figure 2 ;
[0016] Figure 4 This is a schematic diagram of the transmission component structure of this utility model;
[0017] Figure 5 This utility model Figure 2 Enlarged structural diagram at point A in the middle;
[0018] Figure 6 This utility model Figure 3 Enlarged structural diagram at point B;
[0019] In the diagram: 1. Main body of the circular knitting machine; 2. Main shaft; 3. Needle plate; 4. Arc rack; 5. Oil tank; 6. Feed cylinder; 7. Oil outlet; 8. Feed tray; 9. Feed trough; 10. First gear; 11. Positioning frame; 12. Driving bevel gear; 13. Driven bevel gear; 14. Shaft; 15. Bushing; 16. Turntable; 17. Pin; 18. Hollow strip; 19. Sliding sleeve; 20. Sliding rod; 21. Transmission rack; 22. Second gear; 23. Rotating shaft; 24. Sealed bearing. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0021] Depend on Figures 1 to 6The present invention includes a circular knitting machine body 1, a main shaft 2 fixedly installed at the output end of the circular knitting machine body 1, a needle plate 3 fixedly installed on the top of the main shaft 2, an arc-shaped rack 4 fixedly installed on the surface of the main shaft 2, an oil storage tank 5 fixedly installed on one side of the top of the circular knitting machine body 1, a feed cylinder 6 fixedly installed on the lower part of one side of the oil storage tank 5, an oil outlet 7 fixedly installed on the lower part of the circumferential surface of the feed cylinder 6, a feed plate 8 rotatably installed inside the feed cylinder 6, a plurality of feed grooves 9 are opened on the circumferential surface of the feed plate 8, a transmission component is provided on one side of the arc-shaped rack 4, the transmission component is connected to the feed plate 8 for transmission, when the arc-shaped rack 4 rotates, the power is output to the feed plate 8 through the transmission component, so that the feed plate 8 rotates to release lubricating oil to achieve self-lubrication.
[0022] When the main body 1 of the circular knitting machine is running, the main shaft 2 drives the needle plate 3 to rotate for processing. At the same time as the main shaft 2 rotates, the arc rack 4 drives the transmission component to rotate intermittently. When the transmission component rotates, it drives the feed plate 8 to rotate, thereby sending the lubricating oil in the oil storage tank 5 to the oil outlet 7 through the feed groove 9, thus achieving the effect of self-lubrication of the main shaft 2. This allows the circular knitting machine to self-lubricate the main shaft 2 without relying on manual lubrication, avoiding omissions and achieving very good performance.
[0023] The transmission assembly includes a first gear 10, which is meshed with one side of the arc-shaped rack 4. The top of the first gear 10 is rotatably connected to one side of the oil tank 5 via a positioning bracket 11. A driving bevel gear 12 is fixedly installed at the bottom of the first gear 10. A driven bevel gear 13 is meshed with one side of the surface of the driving bevel gear 12. A shaft 14 is fixedly installed on one side of the driven bevel gear 13. A bushing 15 is rotatably installed on the surface of the shaft 14. One side of the bushing 15 is fixedly connected to one side of the oil tank 5.
[0024] While the main shaft 2 rotates, it drives the arc rack 4 to intermittently drive the first gear 10 to rotate along the positioning frame 11. When the first gear 10 rotates, it drives the driven bevel gear 13 to rotate through the driving bevel gear 12. When the driven bevel gear 13 rotates, it drives the shaft 14 to rotate inside the bushing 15.
[0025] A turntable 16 is fixedly installed at one end of the shaft 14. A pin 17 is rotatably installed on the upper part of one side of the turntable 16. A hollow strip 18 is sleeved on the surface of the pin 17. A transmission rack 21 is fixedly installed in the middle of the bottom of the hollow strip 18. A second gear 22 is meshed and connected to one side of the lower end of the transmission rack 21. A rotating shaft 23 is fixedly installed on one side of the second gear 22. The surface of the rotating shaft 23 is rotatably connected to the middle of one side of the feed cylinder 6 through a sealed bearing 24. One end of the rotating shaft 23 extends into the interior of the feed cylinder 6 and is fixedly connected to the feed tray 8. Sliding sleeves 19 are fixedly installed at both ends of the hollow strip 18. A sliding rod 20 is inserted into the interior of each of the two sliding sleeves 19. The bottom ends of the two sliding rods 20 are fixedly connected to the top of the main body 1 of the circular knitting machine.
[0026] When shaft 14 rotates, it drives pin 17 to rotate via turntable 16. When pin 17 rotates, it converts the rotational motion into horizontal motion through the cooperation of hollow bar 18, thereby driving hollow bar 18 to move vertically back and forth. When hollow bar 18 moves, it drives two sliding sleeves 19 to slide along the surfaces of two sliding rods 20, increasing the stability of hollow bar 18 when it moves. When hollow bar 18 moves vertically back and forth, it drives transmission rack 21 to move vertically back and forth. When transmission rack 21 moves vertically back and forth, it drives shaft 23 to rotate inside sealed bearing 24 through second gear 22. When shaft 23 rotates, it drives feed plate 8 to rotate, thereby intermittently sending lubricating oil from oil tank 5 to oil outlet 7 through feed groove 9, thus achieving self-lubrication effect for main shaft 2.
Claims
1. A circular knitting machine with an automatic lubrication mechanism, comprising a main body (1) of the circular knitting machine, characterized in that: The output end of the main body (1) of the circular knitting machine is fixedly installed with a main shaft (2), a needle plate (3) is fixedly installed on the top of the main shaft (2), an arc rack (4) is fixedly installed on the surface of the main shaft (2), an oil tank (5) is fixedly installed on one side of the top of the main body (1), a feed cylinder (6) is fixedly installed on the lower part of one side of the oil tank (5), an oil outlet (7) is fixedly installed on the lower part of the circumferential surface of the feed cylinder (6), a feed plate (8) is rotatably installed inside the feed cylinder (6), a number of feed grooves (9) are opened on the circumferential surface of the feed plate (8), a transmission component is provided on one side of the arc rack (4), the transmission component is connected to the feed plate (8) for transmission, when the arc rack (4) rotates, the power is output to the feed plate (8) through the transmission component, so that the feed plate (8) rotates to release lubricating oil and achieve self-lubrication.
2. A circular knitting machine with an automatic lubrication mechanism according to claim 1, characterized in that: The transmission assembly includes a first gear (10), which is meshed with one side of the arc rack (4). The top of the first gear (10) is rotatably connected to one side of the oil tank (5) through a positioning frame (11). A driving bevel gear (12) is fixedly installed at the bottom of the first gear (10). A driven bevel gear (13) is meshed with one side of the surface of the driving bevel gear (12). A shaft (14) is fixedly installed on one side of the driven bevel gear (13). A bushing (15) is rotatably installed on the surface of the shaft (14). One side of the bushing (15) is fixedly connected to one side of the oil tank (5).
3. A circular knitting machine with an automatic lubrication mechanism according to claim 2, characterized in that: One end of the shaft (14) is fixedly mounted with a turntable (16). A pin (17) is rotatably mounted on the upper part of one side of the turntable (16). A hollow strip (18) is sleeved on the surface of the pin (17). A transmission rack (21) is fixedly mounted in the middle of the bottom of the hollow strip (18). A second gear (22) is meshed on one side of the lower end of the transmission rack (21). A rotating shaft (23) is fixedly mounted on one side of the second gear (22). The surface of the rotating shaft (23) is rotatably connected to the middle of one side of the feed cylinder (6) through a sealed bearing (24). One end of the rotating shaft (23) extends into the interior of the feed cylinder (6) and is fixedly connected to the feed tray (8).
4. A circular knitting machine with an automatic lubrication mechanism according to claim 3, characterized in that: Both ends of the hollow strip (18) are fixedly installed with sliding sleeves (19), and sliding rods (20) are inserted inside the two sliding sleeves (19). The bottom ends of the two sliding rods (20) are fixedly connected to the top of the main body (1) of the circular knitting machine.
Citation Information
Patent Citations
Circular knitting machine
CN220202157U