Micro-oil self-lubricating guide rail structure and sewing machine

Abstract

The utility model discloses a micro oil self -lubricating guide rail structure and sewing machine of sewing machine technical field, including guide rail, be provided with the sliding slot and the oil -holding groove on the guide rail, and the oil -holding groove sets up at both sides of the sliding slot, and the oil -holding groove is passed through the oil -passing hole intercommunication with the sliding slot, sliding block, the sliding block can be set in the sliding slot reciprocatingly, lubricating grease, lubricating grease sets up in the oil -holding groove, follow -up sealant, follow -up sealant sets up in the oil -holding groove, and follow -up sealant is located lubricating grease far from the one end of oil -passing hole, steel ball, steel ball sets up in the oil -passing hole, and part steel ball is located in the sliding slot, to make the sliding block when moving in the sliding slot can extrude and make steel ball move in the oil -passing hole. The utility model not only has realized the automatic addition of lubricating grease, has guaranteed the lubrication of micro oil machine, has reduced the influence of friction high temperature and friction noise, has also improved the overall quality of sewing machine, has promoted the use experience of customer, has broad market prospect.

Description

Technical Field

[0001] This utility model relates to the field of sewing machine technology, specifically to a micro-oil self-lubricating guide rail structure and a sewing machine. Background Technology

[0002] As consumers demand higher quality clothing, the problem of oil stains on sewing machines must also be addressed. This requires the sewing machine head to be in an oil-free, slightly oily, or low-oil operating condition.

[0003] The mainstream type of oil-free sewing machine head is grease lubrication, which involves applying high-temperature resistant grease between the guide rail and the slider. This lubrication method can ensure that the sewing machine head is completely oil-free. However, in actual production activities, grease lubrication has poor durability and requires frequent grease replenishment (every 2-3 days). This not only affects normal sewing operations, but once the grease is depleted and not replenished in time, it will also cause the friction temperature between the guide rail and the slider to rise and the friction noise to increase, thus affecting sewing operations.

[0004] Therefore, how to achieve automatic addition of lubricating grease between the guide rail and the slider has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of this utility model is to provide a micro-oil self-lubricating guide rail structure to address the above-mentioned technical problems, so as to realize the automatic addition of lubricating grease between the guide rail and the slider, and extend the cycle of manual lubricating grease addition.

[0006] The technical solution adopted in this utility model is: a micro-oil self-lubricating guide rail structure, comprising:

[0007] The guide rail is provided with a sliding groove and an oil groove. The oil groove is provided on both sides of the sliding groove, and the oil groove is connected to the sliding groove through an oil passage hole.

[0008] A slider, which is reciprocatingly disposed within a groove;

[0009] Lubricating grease, wherein the lubricating grease is disposed in an oil reservoir;

[0010] A follow-up sealant is disposed in an oil reservoir and located at the end of the lubricating grease away from the oil passage hole;

[0011] A steel ball is disposed in an oil passage hole. The radial dimension of the oil passage hole near the end of the slide groove is smaller than the radial dimension of the steel ball, and part of the steel ball is located in the slide groove, so that the slider can squeeze and move the steel ball in the oil passage hole when it moves in the slide groove.

[0012] Preferably, steel ball grooves that cooperate with steel balls are provided on both sides of the slider.

[0013] Preferably, the oil passage hole is disposed on the guide rail in the transverse direction, and the radial dimension of the oil passage hole is larger than the radial dimension of the steel ball.

[0014] Preferably, the plurality of oil-containing grooves are symmetrically arranged on both sides of the chute.

[0015] Preferably, an upper oil trough and a lower oil trough are provided on both sides of the chute, with the upper oil trough opening upward and the lower oil trough opening downward.

[0016] Preferably, the chute and the oil reservoir are arranged along the length of the guide rail.

[0017] Preferably, the lubricating grease is white oil.

[0018] The second objective of this invention is to provide a sewing machine that includes the aforementioned micro-oil self-lubricating guide rail structure.

[0019] The beneficial effects of this utility model are:

[0020] This invention employs a self-lubricating method. A groove and an oil-receiving groove are provided on the guide rail, and a steel ball is placed in the oil passage hole connecting the oil-receiving groove and the groove. The oil-receiving groove is filled with lubricating grease and a follow-up sealant. When the slider moves within the groove and compresses the steel ball, the steel ball moves within the oil passage hole, increasing the gap between the steel ball and the hole wall. Under atmospheric pressure and the action of the follow-up sealant, the lubricating grease, along with the rolling of the steel ball, fills the gap between the guide rail and the slider, ensuring lubrication of the micro-oil machine, reducing the impact of frictional high temperatures and frictional noise, achieving automatic grease replenishment, and extending the manual grease replenishment cycle. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the micro-oil self-lubricating guide rail structure of this utility model;

[0022] Figure 2 This is one of the structural schematic diagrams of the micro-oil self-lubricating guide rail structure of this utility model;

[0023] Figure 3 for Figure 2 A magnified view of a portion of the image;

[0024] Figure 4 This is the second structural schematic diagram of the micro-oil self-lubricating guide rail structure of this utility model;

[0025] Figure 5 This is a three-dimensional schematic diagram of the guide rail;

[0026] Figure 6 This is a 3D schematic diagram of the slider.

[0027] Explanation of the reference numerals in the figure:

[0028] 10. Guide rail; 11. Slide groove; 12. Oil reservoir; 12a. Upper oil reservoir; 12b. Lower oil reservoir; 13. Oil passage hole; 131. Narrow section; 132. Straight section; 14. Mounting hole;

[0029] 20. Slider; 21. Ball groove; 22. Rounded chamfer; 23. Connecting hole.

[0030] 30. Lubricating grease;

[0031] 40. Follow-up sealant;

[0032] 50. Steel balls. Detailed Implementation

[0033] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. These embodiments are only used to illustrate this utility model and are not intended to limit it.

[0034] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0037] Examples, such as Figures 1-6 As shown, a micro-oil self-lubricating guide rail structure includes: a guide rail 10, a slider 20, a lubricating grease 30, a follower sealant 40, and a steel ball 50.

[0038] A slide groove 11 and an oil reservoir 12 are provided on the guide rail 10. The oil reservoir 12 is located on both sides of the slide groove 11, and the oil reservoir 12 is connected to the slide groove 11 through an oil passage hole 13.

[0039] The slider 20 is configured to reciprocate within the slide groove 11.

[0040] The lubricating grease 30 is placed in the oil reservoir 12.

[0041] The follower sealant 40 is disposed in the oil reservoir 12, and the follower sealant 40 is located at the end of the lubricating grease 30 away from the oil passage 13.

[0042] The steel ball 50 is disposed in the oil passage hole 13. The radial dimension of the oil passage hole 13 near the end of the slide groove 11 is smaller than the radial dimension of the steel ball 50, and part of the steel ball 50 is located in the slide groove 11, so that the slider 20 can squeeze and move the steel ball 50 in the oil passage hole 13 when it moves in the slide groove 11.

[0043] This invention employs a self-lubricating method. A sliding groove 11 and an oil-containing groove 12 are provided on the guide rail 10. A steel ball 50 is placed in an oil passage hole 13 connecting the oil-containing groove 12 and the sliding groove 11. The oil-containing groove 12 is filled with lubricating grease 30 and a follow-up sealant 40. When the slider 20 moves within the sliding groove 11 and squeezes the steel ball 50, the steel ball 50 moves within the oil passage hole 13, increasing the gap between the steel ball 50 and the wall of the oil passage hole 13. Under atmospheric pressure and the action of the follow-up sealant 40, the lubricating grease 30, along with the rolling of the steel ball 50, fills the gap between the guide rail 10 and the slider 20, ensuring lubrication of the micro-oil machine, reducing the impact of frictional high temperatures and frictional noise, achieving automatic addition of the lubricating grease 30, and extending the manual addition cycle of the lubricating grease 30.

[0044] Specific embodiment 1, such as Figures 1-6 As shown, a micro-oil self-lubricating guide rail structure includes: a guide rail 10, a slider 20, a lubricating grease 30, a follower sealant 40, and a steel ball 50.

[0045] like Figure 1 , Figure 2 and Figure 5 As shown, a slide groove 11 and an oil-containing groove 12 are provided on the guide rail 10 along the length direction. There are multiple oil-containing grooves 12. In the width direction of the slide groove 11, multiple oil-containing grooves 12 are arranged on both sides of the slide groove 11.

[0046] Specifically, such as Figure 2As shown, there are two oil tanks 12, which are symmetrically arranged on both sides of the slide 11. The oil tanks 12 are arranged along the length direction of the guide rail 10, that is, the axial direction of the oil tank 12 is parallel to the length direction of the guide rail 10, and one end of the oil tank 12 extends axially and passes through the top of the guide rail 10, that is, the top opening of the oil tank 12.

[0047] like Figure 2 and Figure 3 As shown, an oil passage hole 13 is provided on the guide rail 10. One end of the oil passage hole 13 is connected to the oil receiving groove 12, and the other end of the oil passage hole 13 is connected to the slide groove 11. That is, an oil passage hole 13 is provided on the guide rail 10 on both sides of the slide groove 11. One end of the oil passage hole 13 is connected to the slide groove 11, and the other end of the oil passage hole 13 extends axially and is connected to the bottom end of the oil receiving groove 12.

[0048] Preferably, the oil passage 13 is arranged along the width direction of the guide rail 10, that is, the axial direction of the oil passage 13 is parallel to the width direction of the guide rail 10.

[0049] like Figure 1 and Figure 2 As shown, the slider 20 is reciprocatingly disposed in the slide groove 11, that is, the slider 20 is installed in the slide groove 11, and the slider 20 can reciprocate along the length direction of the guide rail 10 within the slide groove 11.

[0050] like Figure 2 As shown, the lubricating grease 30 is disposed in the oil reservoir 12, that is, the lubricating grease 30 is filled in the oil reservoir 12.

[0051] like Figure 2 As shown, the follower sealant 40 is disposed within the oil reservoir 12, and is located at the end of the lubricating grease 30 furthest from the oil passage 13; that is, the follower sealant 40 fills the oil reservoir 12, and is located at the top of the oil reservoir 12. The follower sealant 40 is used to seal the lubricating grease 30 within the oil reservoir 12. Under atmospheric pressure, the follower sealant 40 can move synchronously with the lubricating grease 30. This follower sealant 40 is existing technology and will not be described in detail here.

[0052] like Figure 2 and Figure 3As shown, the steel ball 50 is installed in the oil passage 13. The radial dimension of the oil passage 13 near the slide groove 11 is smaller than the radial dimension of the steel ball 50. That is, the oil passage 13 includes a constricted section 131 and a straight section 132 that are fixedly connected. The constricted section 131 is connected to the slide groove 11, and the closer it is to the slide groove 11, the smaller the radial dimension of the constricted section 131. That is, from the direction from the oil groove 12 to the slide groove 11, the radial dimension of the constricted section 131 gradually decreases until the radial dimension of the constricted section 131 is smaller than the radial dimension of the steel ball 50.

[0053] The radial dimension of the straight section 132 is larger than the radial dimension of the steel ball 50. The steel ball 50 is housed in the straight section 132, and under atmospheric pressure, the lubricating grease 30 pushes the steel ball 50 to the constriction section 131. Part of the steel ball 50 is located in the slide groove 11, that is, a part of the steel ball 50 extends out from the oil passage hole 13 and enters the slide groove 11, so that when the slider 20 moves in the slide groove 11, it can squeeze and move the steel ball 50 in the oil passage hole 13, so that the lubricating grease 30 in the oil groove 12 can enter the slide groove 11 through the oil passage hole 13 under atmospheric pressure, thereby realizing the lubrication between the guide rail 10 and the slider 20.

[0054] It should be noted that selecting steel balls 50 with different radial dimensions will change the size of the steel balls 50 extending into the slide groove 11, thereby adjusting the amount of lubricating grease 30 output.

[0055] Specific embodiment 2, such as Figures 1-6 As shown, a micro-oil self-lubricating guide rail structure includes: a guide rail 10, a slider 20, a lubricating grease 30, a follower sealant 40, and a steel ball 50.

[0056] like Figure 1 and Figure 4 As shown, a slide groove 11 and an oil-containing groove 12 are provided on the guide rail 10 along the length direction. There are multiple oil-containing grooves 12. In the width direction of the slide groove 11, multiple oil-containing grooves 12 are arranged on both sides of the slide groove 11.

[0057] Specifically, such as Figure 4 As shown, there are four oil collection grooves 12. The four oil collection grooves 12 are symmetrically arranged on both sides of the slide groove 11. That is, two oil collection grooves 12 are opened on the guide rail 10 on one side of the slide groove 11 in the width direction. These two oil collection grooves 12 are the upper oil collection groove 12a and the lower oil collection groove 12b, and the axial direction of the upper oil collection groove 12a and the lower oil collection groove 12b is parallel to the length direction of the guide rail 10.

[0058] One end of the upper oil tank 12a extends axially and passes through the top of the guide rail 10, which is the top opening of the upper oil tank 12a; one end of the lower oil tank 12b extends axially and passes through the bottom of the guide rail 10, which is the bottom opening of the lower oil tank 12b.

[0059] An oil passage hole 13 is provided on the guide rail 10. The oil passage hole 13 corresponds one-to-one with the oil receiving groove 12. One end of the oil passage hole 13 is connected to the oil receiving groove 12, and the other end of the oil passage hole 13 is connected to the slide groove 11.

[0060] like Figure 1 and Figure 4 As shown, the slider 20 is reciprocatingly disposed in the slide groove 11, that is, the slider 20 is installed in the slide groove 11, and the slider 20 can reciprocate along the length direction of the guide rail 10 within the slide groove 11.

[0061] Preferred, such as Figure 4 and Figure 6 As shown, ball grooves 21 are provided on both sides of the slider 20 in the width direction to cooperate with the ball 50. The ball grooves 21 are responsible for frictional lubrication with the ball 50. The ball grooves 21 are arranged along the length direction of the slider 20, and the depth of the ball grooves 21 is smaller than the depth of the ball 50 extending into the groove 11. This allows the ball 50 to contact the groove wall of the ball groove 21 during the reciprocating sliding of the slider 20 in the groove 11, so that the slider 20 can squeeze the ball 50 in the width direction of the guide rail 10, thereby causing the ball 50 to move in the oil passage hole 13, so that the lubricating grease 30 can flow into the ball groove 21 from the gap between the ball 50 and the wall of the oil passage hole 13. At the same time, after the slider 20 contacts the ball 50, the reciprocating sliding of the slider 20 can also drive the ball 50 to roll, further allowing the lubricating grease 30 to flow into the groove 11.

[0062] More preferably, such as Figure 6 As shown, both ends of the slider 20 along its length are provided with rounded chamfers 22 that connect to the ball groove 21, so that the ball 50 can smoothly enter the ball groove 21 during the movement of the slider 20.

[0063] like Figure 4 As shown, the lubricating grease 30 is disposed in the oil reservoir 12, that is, the lubricating grease 30 is filled in the oil reservoir 12.

[0064] Preferably, the lubricating grease 30 is white oil. Different viscosity grades of white oil can be used to meet the requirements of various machine models; higher grade white oil is selected for high loads and high speeds, while lower grade white oil is selected for low loads and low speeds.

[0065] like Figure 4As shown, the follower sealant 40 is disposed within the oil reservoir 12, and is located at the end of the lubricating grease 30 furthest from the oil passage 13; that is, the follower sealant 40 fills the upper oil reservoir 12a, and is located at the top of the upper oil reservoir 12a, and the follower sealant 40 fills the lower oil reservoir 12b, and is located at the bottom of the lower oil reservoir 12b. The follower sealant 40 is used to seal the lubricating grease 30 within the oil reservoir 12, and under atmospheric pressure, the follower sealant 40 can move synchronously with the lubricating grease 30.

[0066] like Figure 3 and Figure 4 As shown, the steel ball 50 is installed in the oil passage hole 13. The radial dimension of the oil passage hole 13 near the slide groove 11 is smaller than the radial dimension of the steel ball 50, and part of the steel ball 50 is located in the slide groove 11. That is, part of the steel ball 50 extends out of the oil passage hole 13 and enters the slide groove 11, so that when the slider 20 moves in the slide groove 11, it can squeeze and move the steel ball 50 in the oil passage hole 13, so that the lubricating grease 30 in the oil reservoir 12 can enter the slide groove 11 through the oil passage hole 13 under the action of atmospheric pressure, thereby realizing the lubrication between the guide rail 10 and the slider 20.

[0067] It should be noted that: the guide rail 10 has mounting holes 14 for mounting and fixing the guide rail 10; and the slider 20 has connecting holes 23 for mounting and fixing the slider 20.

[0068] An example is a sewing machine that includes the above-described micro-oil self-lubricating guide rail structure.

[0069] The working process of the micro-oil self-lubricating guide rail structure of this utility model is as follows:

[0070] When the slider 20 is in the groove 11 of the guide rail 10 along the length direction of the guide rail 10 ( Figure 4 When sliding in the up and down direction, the steel ball 50 installed inside the guide rail 10 contacts and rubs with the slider 20 and rotates accordingly. White oil adheres to the surface of the steel ball 50 and contacts and rubs with the slider 20, thereby realizing the self-lubricating function of the guide rail 10. As the white oil decreases, the follower sealant 40 pushes the white oil into the slide groove 11 under the action of atmospheric pressure.

[0071] Compared with the prior art, the present invention has at least the following beneficial technical effects:

[0072] This invention fills the oil groove of the guide rail with No. 26 white oil and a follow-up sealant for sealing. This ensures that while the white oil is consumed, the follow-up sealant decreases as the white oil level drops. Under atmospheric pressure, the rolling of the steel ball and the slider fills the gap between the guide rail and the slider with white oil. This not only achieves automatic addition of lubricating grease, ensuring the lubrication of the micro-oil machine and reducing the impact of frictional high temperature and frictional noise, but also improves the overall quality of the sewing machine, enhances the customer's user experience, and has broad market prospects.

[0073] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A micro-oil self-lubricating guide rail structure, characterized in that, include: The guide rail (10) is provided with a sliding groove (11) and an oil groove (12). The oil groove (12) is provided on both sides of the sliding groove (11), and the oil groove (12) and the sliding groove (11) are connected through an oil passage hole (13). A slider (20) is provided in a slide groove (11) and is capable of reciprocating movement; Lubricating grease (30) is disposed in an oil reservoir (12); Follow-up sealant (40), the follow-up sealant (40) is disposed in the oil reservoir (12), and the follow-up sealant (40) is located at the end of the lubricating grease (30) away from the oil passage (13); A steel ball (50) is disposed in an oil passage hole (13). The radial dimension of the oil passage hole (13) near the end of the slide groove (11) is smaller than the radial dimension of the steel ball (50), and part of the steel ball (50) is located in the slide groove (11) so that the slider (20) can squeeze and move the steel ball (50) in the oil passage hole (13) when it moves in the slide groove (11).

2. The micro-oil self-lubricating guide rail structure according to claim 1, characterized in that, Steel ball grooves (21) that cooperate with steel balls (50) are provided on both sides of the slider (20).

3. The micro-oil self-lubricating guide rail structure according to claim 1, characterized in that, The oil passage hole (13) is arranged on the guide rail (10) in the transverse direction, and the radial dimension of the oil passage hole (13) is greater than the radial dimension of the steel ball (50).

4. The micro-oil self-lubricating guide rail structure according to claim 1, characterized in that, Multiple oil-containing grooves (12) are symmetrically arranged on both sides of the slide groove (11).

5. The micro-oil self-lubricating guide rail structure according to claim 1, characterized in that, An upper oil trough (12a) and a lower oil trough (12b) are provided on both sides of the chute (11). The upper oil trough (12a) opens upward and the lower oil trough (12b) opens downward.

6. The micro-oil self-lubricating guide rail structure according to claim 1, characterized in that, The chute (11) and the oil reservoir (12) are arranged along the length of the guide rail (10).

7. The micro-oil self-lubricating guide rail structure according to claim 1, characterized in that, The lubricating grease (30) is white oil.

8. A sewing machine, characterized in that, Includes the micro-oil self-lubricating guide rail structure as described in any one of claims 1-7.

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