Oil supply mechanism of sewing machine and sewing machine

Abstract

The utility model relates to an oil supply mechanism of a sewing machine and the sewing machine, and the oil supply mechanism of the sewing machine comprises a driving assembly which is arranged on a shell of the sewing machine; the transmission assembly is matched with the driving assembly; the oil storage pool assembly comprises an oil storage pool and an oil pump structure, at least part of the oil pump structure is located in the oil storage pool, and the oil pump structure is matched with the transmission assembly; the axis of the driving assembly and the axis of the transmission assembly are arranged at an angle. According to the technical scheme, the problem that in the prior art, lubricating oil conveying of a sewing machine is not stable is effectively solved.

Description

Technical Field

[0001] The present application relates to the technical field of the oil supply structure of sewing machines, and more specifically, to an oil supply mechanism and a sewing machine for a sewing machine. Background Art

[0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material, so as to interweave or sew together one or more layers of sewing materials. Sewing machines include sewing machines, stitching machines, embroidery machines, quilting machines, etc.

[0003] A sewing machine needs the reciprocating motion of the sewing needle and the rotating shuttle to cooperate, that is, there are multiple moving parts inside the sewing machine, and there is relative motion between the moving parts and other components or themselves, so lubrication is required to reduce friction and wear.

[0004] Some existing sewing machines are connected with the moving parts of the sewing needle to an oil supply pool, and the lubricating oil is transported to the positions that need to be lubricated. Such a structure will cause that when the running speed of the sewing needle is slow, the power of the lubricating oil cannot reach the parts that need to be lubricated, resulting in an increase in friction and wear; when the running speed of the sewing needle is fast, the amount of lubricating oil transported is large, causing waste of lubricating oil and even polluting the sewing thread with the lubricating oil. Summary of the Utility Model

[0005] The present application provides an oil supply mechanism and a sewing machine for a sewing machine to solve the problem of unstable lubricating oil transportation in the existing sewing machines.

[0006] An oil supply mechanism for a sewing machine according to the present application includes: a driving component, which is arranged on the housing of the sewing machine; a transmission component, which cooperates with the driving component; an oil storage pool component, which includes an oil storage pool and an oil pump structure, at least part of the oil pump structure is located in the oil storage pool, and the oil pump structure cooperates with the transmission component; the axis of the driving component and the axis of the transmission component are arranged at an angle.

[0007] Further, the driving component includes an oil pump driving motor and a first bevel gear, the first bevel gear is connected to the output shaft of the oil pump driving motor, the transmission component includes a second bevel gear and a transmission shaft, the second bevel gear is arranged at the first end of the transmission shaft, and the first bevel gear meshes with the second bevel gear.

[0008] Further, the oil pump driving motor is located outside the housing of the sewing machine, and the first bevel gear and the second bevel gear are both located inside the housing of the sewing machine.

[0009] Further, the rotating shaft of the oil pump driving motor passes through the housing of the sewing machine, and a shaft sleeve is arranged between the rotating shaft of the oil pump driving motor and the housing of the sewing machine.

[0010] Further, the transmission assembly further includes a first gear. The oil pump structure includes blades, an oil pump shaft, and a second gear. The first gear is disposed at the second end of the transmission shaft. The second gear is disposed at the first end of the oil pump shaft. The blades are disposed at the second end of the oil pump shaft. The blades are located inside the oil storage tank. The first gear and the second gear cooperate with each other.

[0011] Further, the transmission assembly further includes a third gear. The third gear is disposed between the first gear and the second gear and meshes with the first gear and the second gear respectively.

[0012] Further, the transmission assembly further includes a bracket. The bracket is connected to the inner wall of the sewing machine housing. The transmission shaft, the rotating shaft of the second gear, and the rotating shaft of the third gear are rotatably passed through the bracket.

[0013] According to another aspect of the present application, there is also provided a sewing machine. The sewing machine includes a sewing machine main body, a sewing machine housing, and a sewing machine oil supply mechanism. The sewing machine oil supply mechanism is disposed on the sewing machine housing and lubricates the sewing machine main body. The sewing machine oil supply mechanism is the above-mentioned sewing machine oil supply mechanism.

[0014] Further, the oil pump drive motor of the sewing machine oil supply mechanism is located between the needle motor and the forward and reverse rack motors.

[0015] Further, the oil supply mechanism further includes an oil supply pipeline and an oil supply cotton. Both the oil supply pipeline and the oil supply cotton are connected to the oil storage tank. The oil supply pipeline and the oil supply cotton lubricate the sewing machine main body.

[0016] Applying the technical solution of the present application, the sewing machine oil supply mechanism is driven by the driving assembly provided therein. In this way, whether the sewing machine is running at high speed or low speed, the oil supply and lubrication of the sewing machine are relatively stable. The axis of the driving assembly is arranged at an angle with the axis of the transmission assembly. In this way, the setting of the sewing machine oil supply mechanism is relatively flexible, and there is no need to set the driving assembly at a certain specific position, which results in an increase in the local structure of the sewing machine. That is, the sewing machine structure of the applied oil supply mechanism is compact. The technical solution of the present application effectively solves the problem of unstable lubricating oil delivery in the existing sewing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application.

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 Shows a three - dimensional structural schematic diagram of the oil supply mechanism of the sewing machine according to an embodiment of the present application;

[0020] Figure 2 Shows Figure 1 a planar structural schematic diagram of the oil supply mechanism of the sewing machine;

[0021] Figure 3 Shows a schematic diagram of the overall structure of the sewing machine of the present application;

[0022] Figure 4 Shows Figure 3 a planar structural schematic diagram of the sewing machine;

[0023] Among them, the above - mentioned drawings include the following reference numerals:

[0024] 10. Driving assembly; 11. Oil pump driving motor; 12. First bevel gear; 20. Transmission assembly; 21. Second bevel gear; 22. Transmission shaft; 23. First gear; 24. Third gear; 25. Bracket; 30. Oil storage tank assembly; 31. Oil storage tank; 32. Oil pump structure; 100. Sewing machine housing. Detailed implementation manners

[0025] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0026] It should be pointed out that the following detailed description is exemplary and is intended to provide further description of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0027] For the sake of convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "upper" etc. can be used here to describe the spatial positional relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation shown in the figure for the device. For example, if the device in the figure is inverted, the device described as "above other devices or structures" or "over other devices or structures" will be positioned as "below other devices or structures" or "under other devices or structures" afterwards. Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned or rotated in other different ways by 90 degrees or in other orientations, and corresponding explanations will be made for the spatial relative descriptions used here.

[0028] AsFigure 1 and Figure 2 As shown in Figure 2 , the oil supply mechanism of the sewing machine in this embodiment includes: a driving component 10, a transmission component 20, and an oil storage tank component 30. The driving component 10 is arranged on the sewing machine housing 100. The transmission component 20 is cooperated with the driving component 10. The oil storage tank component 30 includes an oil storage tank 31 and an oil pump structure 32. At least part of the oil pump structure 32 is located in the oil storage tank 31, and the oil pump structure 32 is cooperated with the transmission component 20. The axis of the driving component 10 and the axis of the transmission component 20 are arranged at an angle.

[0029] Applying the technical solution of this embodiment, the oil supply mechanism of the sewing machine is driven by the driving component 10 provided by itself. In this way, whether the sewing machine is running at high speed or low speed, the oil supply and lubrication of the sewing machine are relatively stable. The axis of the driving component 10 and the axis of the transmission component 20 are arranged at an angle, which makes the setting of the oil supply mechanism of the sewing machine more flexible, without setting the driving component at a certain specific position, resulting in an increase in the local structure of the sewing machine. That is, the sewing machine structure of the applied oil supply mechanism is compact. The technical solution of this embodiment effectively solves the problem of unstable lubricating oil transmission in the existing sewing machine.

[0030] It should be noted that the oil storage tank 31 has a lubricating oil outlet and a lubricating oil filling port. Generally, the lubricating oil outlet is arranged on the side wall of the oil storage tank 31, and the lubricating oil filling port is located on the top wall of the oil storage tank. A filter screen is also arranged on the lubricating oil filling port, which can avoid impurities, dust, etc. from entering the oil storage tank. A rubber plug is arranged on the lubricating oil filling port. When lubricating oil needs to be filled, the rubber plug is opened. When lubricating oil is not filled, the rubber plug covers the lubricating oil filling port. A sealing structure is arranged between the oil storage tank 31 and the oil pump structure 32, which can effectively prevent the overflow and splash of lubricating oil.

[0031] As Figure 1 and Figure 2 shown in Figure 2 , in the technical solution of this embodiment, the driving component 10 includes an oil pump driving motor 11 and a first bevel gear 12. The first bevel gear 12 is connected to the output shaft of the oil pump driving motor 11. The transmission component 20 includes a second bevel gear 21 and a transmission shaft 22. The second bevel gear 21 is arranged at the first end of the transmission shaft 22, and the first bevel gear 12 is meshed with the second bevel gear 21. The setting of the first bevel gear 12 and the second bevel gear 21 makes the setting position range between the oil pump driving motor 11 and the oil storage tank 31 wider. There is no need to set the position of the oil pump driving motor 11 directly opposite to the oil storage tank 31. For example, directly arranging the oil pump driving motor 11 directly above the oil storage tank 31 will affect the internal structure of the sewing machine.

[0032] As Figure 3As shown, in the technical solution of this embodiment, the oil pump drive motor 11 is located outside the sewing machine housing 100, and both the first bevel gear 12 and the second bevel gear 21 are located inside the sewing machine housing 100. The oil pump drive motor 11 is arranged outside the sewing machine housing 100, which can save the internal space of the sewing machine housing 100. The first bevel gear 12 and the second bevel gear 21 are arranged inside the sewing machine housing 100, which can effectively prevent the first bevel gear 12 and the second bevel gear 21 from being contaminated by dust, fibers, thread ends, etc.

[0033] As Figure 3 shown, in the technical solution of this embodiment, the rotating shaft of the oil pump drive motor 11 penetrates through the sewing machine housing 100, and a shaft sleeve is arranged between the rotating shaft of the oil pump drive motor 11 and the sewing machine housing 100. The arrangement of the shaft sleeve makes the cooperation between the drive assembly 10 and the sewing machine housing 100 more stable. It should be noted that the shaft sleeve can be press-fitted through the sewing machine housing 100. Other fixing methods for the shaft sleeve and the sewing machine housing 100 are also possible, such as fixing with fasteners, welding, etc. The oil pump drive motor 11 is fixed on the sewing machine housing 100. The rotating shaft of the oil pump drive motor 11 can be the rotating shaft of the oil pump drive motor 11 itself or a rotating shaft connected to the rotating shaft of the oil pump drive motor 11. The rotating shaft of the oil pump drive motor 11 is directly connected to the first bevel gear 12, or the oil pump drive motor 11 is connected to the first bevel gear 12 through a connecting shaft, which is also possible.

[0034] As Figure 1 and Figure 2 shown, in the technical solution of this embodiment, the transmission assembly 20 further includes a first gear 23. The oil pump structure 32 includes blades, an oil pump shaft, and a second gear. The first gear 23 is arranged at the second end of the transmission shaft 22. The second gear is arranged at the first end of the oil pump shaft. The blades are arranged at the second end of the oil pump shaft. The blades are located inside the oil storage tank 31. The first gear 23 and the second gear cooperate with each other. Both the first gear 23 and the second gear are spur gears. The first gear 23 is directly meshed with the second gear, or meshed with the second gear through other gears, which is also possible. The first gear 23 drives the second gear to rotate. The rotation of the second gear drives the blades to rotate. The rotation of the blades makes the lubricating oil have centrifugal force. In this way, the lubricating oil is thrown out through the lubricating oil outlet under the action of centrifugal force.

[0035] As Figure 1 and Figure 2As shown, in the technical solution of this embodiment, the transmission assembly 20 further includes a third gear 24. The third gear 24 is disposed between the first gear 23 and the second gear, and meshes with the first gear 23 and the second gear respectively. The setting of the third gear 24 can effectively change the transmission distance, so that there is a buffering force between the gears. It should be noted that the axes of the first gear 23, the second gear, the third gear 24, and the second bevel gear 21 are parallel; the axis of the first bevel gear 12 is perpendicular to the axis of the second bevel gear 21.

[0036] As Figure 1 shown, in the technical solution of this embodiment, the transmission assembly 20 further includes a bracket. The bracket is connected to the inner wall of the sewing machine housing 100. The transmission shaft 22, the rotating shafts of the second gear and the third gear 24 are rotatably disposed through the bracket. The setting of the bracket makes the transmission shaft 22, the rotating shafts of the second gear and the third gear 24 more stable.

[0037] As Figure 3 and Figure 4 shown, according to another aspect of the present application, there is also provided a sewing machine. The sewing machine includes a sewing machine housing 100, a sewing machine main body, and a sewing machine oil supply mechanism. The sewing machine oil supply mechanism is disposed on the sewing machine housing 100 and lubricates the sewing machine main body. The sewing machine oil supply mechanism is the above-mentioned sewing machine oil supply mechanism. The sewing machine of the present application has a relatively stable oil supply and lubrication mechanism. It should be noted that the sewing machine oil supply mechanism of the sewing machine of the present application analyzes factors such as the distance of the lubrication position to be lubricated and the amount of oil used. For example, for a lubrication position that is relatively close, the oil outlet hole of the oil supply pipeline is set smaller to meet the lubrication requirement. For a lubrication position that is relatively far, the diameter of the oil supply pipe is set larger to minimize the resistance loss of the lubricating oil, so as to ensure the lubrication effect of each lubrication position.

[0038] The oil pump drive motor 11 of the sewing machine oil supply mechanism of the present application is located between the needle motor and the forward and reverse feed dog motor. Such a structure is relatively compact, and the three motors are arranged together for convenient unified management.

[0039] The sewing machine oil supply mechanism of the present application further includes an oil supply pipeline and an oil supply cotton. Both the oil supply pipeline and the oil supply cotton are connected to the oil storage tank 31, and the oil supply pipeline and the oil supply cotton lubricate the sewing machine main body. For some positions, the lubricating oil needs to be transported to the lubrication position through the oil supply pipeline, such as the lubrication of the rotary hook shaft. For some positions, good lubrication can be achieved through the oil supply cotton, such as the lubrication of the gears. It should be noted that the sewing machine oil supply mechanism of the present application also includes the lubrication of the sewing machine oil supply mechanism itself.

[0040] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0041] It should be noted that the terms "first", "second", etc. in the description and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0042] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A sewing machine oil supply mechanism, characterized in that: include: A driving assembly (10), wherein the driving assembly (10) is arranged on a sewing machine housing (100); A transmission assembly (20), the transmission assembly (20) cooperates with the drive assembly (10); An oil reservoir assembly (30), the oil reservoir assembly (30) comprising an oil reservoir (31) and an oil pump structure (32), the oil pump structure (32) being at least partially located in the oil reservoir (31), and the oil pump structure (32) being matched with the transmission assembly (20); The axis of the driving assembly (10) is arranged at an angle to the axis of the transmission assembly (20).

2. The oil supply mechanism for a sewing machine according to claim 1, characterized in that: The drive assembly (10) comprises an oil pump drive motor (11) and a first bevel gear (12), wherein the first bevel gear (12) is connected to an output shaft of the oil pump drive motor (11), and the transmission assembly (20) comprises a second bevel gear (21) and a transmission shaft (22), wherein the second bevel gear (21) is arranged at a first end of the transmission shaft (22), and the first bevel gear (12) is meshed with the second bevel gear (21).

3. The oil supply mechanism for a sewing machine according to claim 2, characterized in that: The oil pump driving motor (11) is located outside the sewing machine housing (100), and the first bevel gear (12) and the second bevel gear (21) are both located inside the sewing machine housing (100).

4. The oil supply mechanism for a sewing machine according to claim 3, characterized in that: The rotating shaft of the oil pump driving motor (11) is passed through the sewing machine housing (100), and a shaft sleeve is arranged between the rotating shaft of the oil pump driving motor (11) and the sewing machine housing (100).

5. The oil supply mechanism for a sewing machine according to claim 2, characterized in that: The transmission assembly (20) further comprises a first gear (23), the oil pump structure (32) comprises a blade, an oil pump shaft and a second gear, the first gear (23) being arranged at the second end of the transmission shaft (22), the second gear being arranged at the first end of the oil pump shaft, the blade being arranged at the second end of the oil pump shaft, the blade being located inside the oil storage tank (31), and the first gear (23) and the second gear being matched with each other.

6. The oil supply mechanism for a sewing machine according to claim 5, characterized in that: The transmission assembly (20) further comprises a third gear (24), wherein the third gear (24) is arranged between the first gear (23) and the second gear, and is meshed with the first gear (23) and the second gear respectively.

7. The oil supply mechanism for a sewing machine according to claim 6, characterized in that: The transmission assembly (20) further comprises a bracket (25), the bracket (25) being connected to the inner wall of the sewing machine housing (100), and the transmission shaft (22), the rotating shaft of the second gear and the rotating shaft of the third gear (24) are all rotatably disposed on the bracket (25).

8. A sewing machine, characterized in that: The sewing machine comprises a sewing machine body and a sewing machine housing (100) and a sewing machine oil supply mechanism, wherein the sewing machine oil supply mechanism is arranged on the sewing machine housing (100) and lubricates the sewing machine body, and the sewing machine oil supply mechanism is the sewing machine oil supply mechanism according to any one of claims 1 to 7.

9. The sewing machine according to claim 8, characterized in that The oil pump driving motor (11) of the oil supply mechanism of the sewing machine is located between the needle motor and the forward and reverse tooth frame motor.

10. The sewing machine according to claim 8, characterized in that The oil supply mechanism also includes an oil supply pipeline and oil supply cotton. The oil supply pipeline and the oil supply cotton are both connected to the oil storage tank (31). The oil supply pipeline and the oil supply cotton lubricate the sewing machine body.

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