Processing and lubricating device for craft sewing machine
By setting up a circular array of oil supply rollers and oil grooves on the process sewing machine, the problem of uneven lubrication is solved, ensuring stable lubrication of the needle bar surface and improving the operational stability and sewing quality of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2026-03-31
AI Technical Summary
Existing lubrication devices for process sewing machines rely on gravity lubrication, which makes it difficult to control the amount of lubricating oil. This results in uneven lubrication of the needle bar, affecting equipment stability and sewing accuracy.
The system employs a lubrication assembly and an oil supply assembly, including an oil supply roller arranged in a ring array inside the needle sleeve. The oil supply roller is rotated by a rotating shaft, and an oil groove is opened on the sealed outer shell to ensure that the lubricating oil is evenly applied to the surface of the needle bar to form a stable oil film layer.
This achieves uniform lubrication of the needle bar surface, reduces mechanical wear, and improves the stability of equipment operation and sewing accuracy.
Smart Images
Figure CN224063056U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sewing machine lubrication technology, and in particular to a lubrication device for process sewing machines. Background Technology
[0002] Processing lubrication devices for sewing machines refer to specialized devices installed on sewing machine equipment to automatically or manually supply lubricating oil to key sewing parts (such as needle bar, shuttle bed, feed dog, etc.) in order to reduce friction of mechanical parts, reduce wear, extend equipment life and ensure sewing quality.
[0003] Existing lubrication devices for industrial sewing machines deliver lubricating oil or grease to the moving parts of the sewing machine to form a lubricating film, reducing the coefficient of friction and minimizing wear caused by direct contact between metal parts. This ensures sewing accuracy and equipment stability in industrial sewing machines that operate continuously for extended periods.
[0004] However, in practical applications, existing lubrication devices typically use gravity lubrication. This method relies mainly on the oil's own weight to drip onto the lubrication points. While simple in construction, the amount of oil supplied is difficult to control. Furthermore, mechanical vibrations, temperature changes, and variations in the liquid level can all alter the amount of oil dripped, making it difficult to ensure uniform lubrication of all parts of the needle bar and hindering the formation of stable ink on the needle bar surface.
[0005] Therefore, this application provides a lubrication device for process sewing machines to meet the requirements. Utility Model Content
[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a lubrication device for sewing machine processing.
[0007] To achieve the above objectives, this utility model adopts the following technical solution: a lubrication device for a sewing machine, comprising a sewing machine body, and further comprising:
[0008] A lubrication assembly is located on one side of the sewing machine body. The lubrication assembly includes a needle sleeve disposed on one side of the sewing machine body. A needle bar is disposed inside the needle sleeve. An oil supply roller is disposed on the side of the needle sleeve near the needle bar. The oil supply roller is drivenly connected to the needle bar. The oil supply rollers are distributed in a circular array along the central axis on the needle sleeve.
[0009] An oil supply assembly is placed outside the lubrication assembly and is used to continuously increase the lubricating oil on the surface of the oil supply roller. The oil supply assembly includes a sealed outer shell fixed to the outside of the needle sleeve. An oil groove is formed inside the sealed outer shell on the side near the needle sleeve. The length of the oil groove is less than the length of the needle sleeve.
[0010] Furthermore, the oil supply roller has a rotating shaft inside, and the oil supply roller is rotatably connected to the needle sleeve through the rotating shaft.
[0011] The beneficial effect of adopting the above-mentioned further solution is that the rotating shaft is fixed inside the oil supply roller, and the rotating shaft drives the oil supply roller to rotate on the needle sleeve, thus ensuring the stability of the oil supply roller during rotation.
[0012] Furthermore, the diameter of the oil supply roller is greater than the thickness of the needle sleeve.
[0013] The beneficial effect of adopting the above-mentioned further solution is that the diameter of the groove on both sides of the needle sleeve is smaller than the diameter of the oil supply roller, thereby confining the oil supply roller inside the needle sleeve, preventing the oil supply roller from separating from the needle sleeve, and preventing damage to the lubrication components.
[0014] Furthermore, the oil supply roller has an arc surface that matches the needle bar.
[0015] The beneficial effect of adopting the above-mentioned further solution is that it increases the area covered by the lubricating oil while making the lubricating oil more evenly distributed.
[0016] Furthermore, an oil box is fixedly connected to the top of the sealed outer shell, and a connecting pipe is fixedly connected to the side of the sealed outer shell near the oil box. The oil tank is fixedly connected to the oil box through the connecting pipe.
[0017] The advantage of adopting the above-mentioned further solution is that it facilitates the replenishment of lubricating oil inside the oil tank and ensures that each oil supply roller can come into contact with lubricating oil.
[0018] Furthermore, the diameter of the sealing shell is the same as the diameter of the oil box, and the sealing shell, the oil box, and the sewing machine body are slidably connected.
[0019] The advantage of adopting the above-mentioned further solution is that it facilitates the installation of the sealing shell and oil box on the sewing machine body from the top of the sewing machine body.
[0020] Furthermore, a connecting plate is fixedly connected to one end of the sealed outer shell near the sewing machine body, and the sealed outer shell is fixedly connected to the sewing machine body through the connecting plate.
[0021] The beneficial effect of adopting the above-mentioned further solution is that it keeps the sealing shell and oil box stable on the sewing machine body and ensures that the sealing shell and needle sleeve are accurately positioned and do not shift.
[0022] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0023] 1. By setting up a lubrication component and uniformly applying lubricating oil to the surface of the oil supply roller, when the needle bar slides back and forth inside the needle sleeve, its movement will drive the oil supply roller to rotate along the inner wall of the needle sleeve, thereby ensuring that the lubricating oil is evenly adhered to the surface of the needle bar. Since the oil supply rollers are distributed in a ring array inside the needle sleeve, and the adjacent layers of oil supply roller groups are staggered in circumferential angle, it ensures that the lubricating oil is more evenly coated in the entire circumferential range of the needle bar. At the same time, the introduction of the oil supply roller changes the traditional sliding friction mode between the needle bar and the needle sleeve. By rolling contact, the mechanical wear between the two is significantly reduced, which helps to form a stable oil film layer on the surface of the needle bar, thereby improving the running stability of the needle bar during high-speed reciprocating motion.
[0024] 2. By setting up an oil supply component, an oil groove is opened on the sealing shell. The length of the oil groove is shorter than that of the needle sleeve. After the needle sleeve is fixed to the sealing shell, the needle sleeve will seal both ends of the oil groove. During the rolling of the oil supply roller, one side of it will first come into contact with the lubricating oil in the oil groove. As the oil supply roller continues to roll, it will carry the lubricating oil on its surface out of the oil groove and apply it to the needle bar, so that the oil groove continuously supplies lubricating oil to the oil supply roller, ensuring a continuous supply of lubricating oil to the needle bar. Attached Figure Description
[0025] Figure 1 This is a front view of a lubrication device for a sewing machine according to the present invention;
[0026] Figure 2 This is a side sectional view of the oil supply component in a lubrication device for a sewing machine according to the present invention.
[0027] Figure 3 This is a side sectional view of the lubrication component in a lubrication device for a sewing machine according to the present invention;
[0028] Figure 4 This is a side sectional view of the oil supply roller in a lubrication device for a sewing machine according to the present invention.
[0029] Figure 5 This is a structural diagram of the oil box in a lubrication device for a sewing machine according to the present invention.
[0030] Figure Labels
[0031] 1. Sewing machine body;
[0032] 2. Lubrication assembly; 21. Needle sleeve; 22. Oil supply roller; 23. Needle bar; 24. Rotating shaft; 25. Arc surface;
[0033] 3. Oil supply assembly; 31. Sealing housing; 32. Oil tank; 33. Oil box; 34. Connecting pipe; 35. Connecting plate. Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0035] like Figures 1-5 As shown, this utility model provides a technical solution: a lubrication device for a sewing machine, including a sewing machine body 1, and further comprising:
[0036] like Figures 1-3 As shown, the lubrication component 2 is located on one side of the sewing machine body 1. The lubrication component 2 includes a needle sleeve 21 located on one side of the sewing machine body 1. A needle bar 23 is located inside the needle sleeve 21. An oil supply roller 22 is located on the side of the needle sleeve 21 near the needle bar 23. The oil supply roller 22 is connected to the needle bar 23 in a drive. The oil supply roller 22 is arranged in a ring array on the needle sleeve 21 along the central axis.
[0037] like Figure 3 As shown, the oil supply assembly 3 is located outside the lubrication assembly 2 and is used to continuously supply lubricating oil to the surface of the oil supply roller 22. The oil supply assembly 3 includes a sealed outer shell 31 fixed to the outside of the needle sleeve 21. An oil groove 32 is formed inside the sealed outer shell 31 on the side near the needle sleeve 21. The length of the oil groove 32 is less than the length of the needle sleeve 21. By applying lubricating oil to the oil supply roller 22, when the needle bar 23 slides inside the needle sleeve 21, the needle bar 23 drives the oil supply roller 22 to rotate on the needle sleeve 21, so that the lubricating oil on the oil supply roller 22 is applied to the needle bar 23. Since the oil supply rollers 22 are arranged in a ring array on the needle sleeve 21, and the angle of each layer of oil supply rollers 22 is staggered, the oil supply rollers 22 can apply lubricating oil to the needle bar 23 more evenly. At the same time, the oil supply rollers 22 change the transmission sliding between the needle bar 23 and the needle sleeve 21. The dynamic connection method allows the oil supply roller 22 to roll and connect with the needle bar 23, thereby reducing the wear caused by the movement of the needle bar 23 inside the needle sleeve 21. This solves the problem of ensuring uniform lubrication of all parts of the needle bar 23, which is conducive to the formation of stable ink on the surface of the needle bar 23 and improves the stability of the needle bar 23 during use. An oil groove 32 is opened on the sealing shell 31. Since the length of the oil groove 32 is less than the length of the needle sleeve 21, the two ends of the oil groove 32 are sealed after the needle sleeve 21 is fixed to the sealing shell 31. When the oil supply roller 22 rolls, one side of the oil supply roller 22 contacts the lubricating oil inside the oil groove 32 first. As the oil supply roller 22 continues to roll, it carries the surface lubricating oil out of the oil groove 32 and coats it on the needle bar 23, so that the oil groove 32 continuously provides lubricating oil to the oil supply roller 22, ensuring a continuous supply of lubricating oil.
[0038] Furthermore, such as Figure 4 As shown, the oil supply roller 22 has a rotating shaft 24 inside. The oil supply roller 22 is rotatably connected to the needle sleeve 21 through the rotating shaft 24. By fixing the rotating shaft 24 inside the oil supply roller 22 and making the rotating shaft 24 drive the oil supply roller 22 to rotate on the needle sleeve 21, the stability of the oil supply roller 22 during rotation is ensured.
[0039] Furthermore, such as Figure 3 As shown, the diameter of the oil supply roller 22 is greater than the thickness of the needle sleeve 21. By opening a groove on the needle sleeve 21 that matches the oil supply roller 22, it is ensured that the oil supply roller 22 can rotate through the groove. Since the diameter of the oil supply roller 22 is greater than the thickness of the needle sleeve 21, the diameters on both sides of the groove on the needle sleeve 21 are smaller than the diameter of the oil supply roller 22, thereby confining the oil supply roller 22 inside the needle sleeve 21, preventing the oil supply roller 22 from separating from the needle sleeve 21, and preventing damage to the lubrication assembly 2.
[0040] Furthermore, such as Figure 4 As shown, the oil supply roller 22 has an arc surface 25 that matches the needle bar 23. By opening the arc surface 25 on the oil supply roller 22, when the oil supply roller 22 contacts the needle bar 23, the arc surface 25 fits against the upper surface of the needle bar 23, increasing the area for applying lubricating oil and making the lubrication distribution more uniform.
[0041] Furthermore, such as Figures 2-5 As shown, an oil box 33 is fixedly connected to the top of the sealing housing 31, and a connecting pipe 34 is fixedly connected to the side of the sealing housing 31 near the oil box 33. The oil trough 32 is fixedly connected to the oil box 33 through the connecting pipe 34. By filling the interior of the oil box 33 with lubricating oil, the lubricating oil then enters the interior of the oil trough 32 along the connecting pipe 34, which facilitates the replenishment of lubricating oil in the oil trough 32 and ensures that each oiling roller 22 can come into contact with lubricating oil.
[0042] Furthermore, such as Figures 2-5 As shown, the diameter of the sealing shell 31 is the same as the diameter of the oil box 33. The sealing shell 31, the oil box 33 and the sewing machine body 1 are slidably connected. By opening a groove on the top of the sewing machine body 1 that matches the oil box 33, since the diameters of the sealing shell 31 and the oil box 33 are the same, it is convenient to install the sealing shell 31 and the oil box 33 on the sewing machine body 1 from the top of the sewing machine body 1.
[0043] Furthermore, such as Figure 2 As shown, a connecting plate 35 is fixedly connected to one end of the sealing housing 31 near the sewing machine body 1. The sealing housing 31 is fixedly connected to the sewing machine body 1 through the connecting plate 35. By using ordinary screws, the connecting plate 35 is fixed to the top of the sewing machine body 1, so that the sealing housing 31 and the oil box 33 remain stable on the sewing machine body 1, and the position of the sealing housing 31 and the needle sleeve 21 is accurate and will not shift.
[0044] Working principle: such as Figures 1-5 As shown, the sealing shell 31 and oil box 33 are inserted into the groove at the top of the sewing machine body 1. The connecting plate 35 is snapped into the sewing machine body 1 and fixed with screws to ensure that the sealing shell 31 and oil box 33 are installed stably. The oil box 33 is filled with lubricating oil, and the lubricating oil then enters the oil trough 32 along the connecting pipe 34. Then, the sewing machine body 1 is started. The crankshaft inside the sewing machine body 1 drives the needle bar 23 to move vertically inside the needle sleeve 21 through the connecting rod. When the needle bar 23 slides inside the needle sleeve 21, the rotating shaft 24 drives the oil supply roller 22 to rotate on the needle sleeve 21. One side of the oil supply roller 22 contacts the lubricating oil inside the oil trough 32 first, supplying oil. Roller 22 continues to roll, carrying the surface lubricating oil out of the oil groove 32 and applying it to the needle bar 23. When the oil roller 22 contacts the needle bar 23, the arc surface 25 fits against the upper surface of the needle bar 23, increasing the area for applying lubricating oil and making the lubrication distribution more uniform. Since the oil rollers 22 are arranged in a ring array on the needle sleeve 21, and the angles of each layer of oil rollers 22 are staggered, the oil rollers 22 can apply the lubricating oil to the needle bar 23 more evenly. At the same time, the oil rollers 22 change the transmission and sliding connection between the needle bar 23 and the needle sleeve 21, making the oil rollers 22 and the needle bar 23 roll together, thereby reducing the wear caused by the needle bar 23 moving inside the needle sleeve 21.
[0045] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A process sewing machine processing lubricating device comprising a sewing machine body (1), characterized in that, Also include: The lubricating assembly (2) is arranged on one side of the sewing machine body (1), the lubricating assembly (2) includes a needle sleeve (21) arranged on one side of the sewing machine body (1), the inside of the needle sleeve (21) is provided with a needle rod (23), one side of the needle sleeve (21) close to the needle rod (23) is provided with an oil roller (22), the oil roller (22) is in driving connection with the needle rod (23), the oil roller (22) is distributed in annular array along the central axis on the needle sleeve (21); The oil feeding assembly (3) is arranged outside the lubricating assembly (2) and is used for continuously providing lubricating oil on the surface of the oil roller (22), the oil feeding assembly (3) includes a sealed shell (31) fixed outside the needle sleeve (21), the inside of the sealed shell (31) is provided with an oil groove (32) close to the needle sleeve (21), the length of the oil groove (32) is less than the length of the needle sleeve (21).
2. A process sewing machine processing lubricating device according to claim 1, characterized in that, The inside of the oil roller (22) is provided with a rotating shaft (24), the oil roller (22) is in rotating connection with the needle sleeve (21) through the rotating shaft (24).
3. A process sewing machine lubricating device according to claim 1, wherein, The diameter of the oil roller (22) is greater than the thickness of the needle sleeve (21).
4. A process sewing machine lubricating device according to claim 1, wherein, An arc surface (25) matched with the needle rod (23) is formed on the oil roller (22).
5. A process sewing machine lubricating device according to claim 1 wherein, The top of the sealed shell (31) is fixedly connected with an oil box (33), one side of the sealed shell (31) close to the oil box (33) is fixedly connected with a communication pipe (34), the oil groove (32) is in fixed communication with the oil box (33) through the communication pipe (34).
6. A process sewing machine processing lubricating device according to claim 5, characterized in that, The diameter of the sealed shell (31) is the same as the diameter of the oil box (33), the sealed shell (31), the oil box (33) and the sewing machine body (1) are in sliding connection.
7. A process sewing machine lubricating apparatus according to claim 5 wherein, One end of the sealed shell (31) close to the sewing machine body (1) is fixedly connected with a connecting plate (35), the sealed shell (31) is fixedly connected with the sewing machine body (1) through the connecting plate (35).