Shuttle race and rotating shuttle

Abstract

The utility model relates to the technical field of rotating shuttles, in particular to a shuttle race and a rotating shuttle, the shuttle race comprises a shuttle race body, the shuttle race body is provided with a mounting hole and a track groove, the shuttle race body is provided with a first oil supply channel, the two ends of the first oil supply channel are communicated with the track groove and the mounting hole respectively, and the shuttle race body is further provided with a second oil supply channel. On the axial projection of the shuttle race body, an included angle alpha is formed between the first oil supply channel and the second oil supply channel, the second oil supply channel is communicated with the mounting hole, at least part of the second oil supply channel is formed in the inner circumferential wall of the shuttle race body to form a channel, and the end, away from the mounting hole, of the channel is communicated with the rail groove; the track groove is equivalent to two spaced oil inlet points, so that when the rotating shuttle is used, oil inlet in the track groove can be increased, lubricating oil can exist in the whole track groove, and it is guaranteed that the lubricating oil in the track groove is sufficient.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary shuttles, in particular to a shuttle bed and a rotary shuttle. Background Art

[0002] The rotary shuttle is a key component on an industrial sewing machine that plays a role in winding and locking threads. The rotary shuttle mainly consists of a shuttle bed and a shuttle frame, etc. A guide rail groove that surrounds the shuttle bed for one week is provided on the inner wall of the upper middle part of the shuttle bed, and a guide rail that fits with the guide rail groove is provided on the outer periphery of the middle part of the shuttle frame. During operation, the shuttle bed rotates and the shuttle frame is stationary, and the two rotate relative to each other at a high speed. An installation hole is provided at the lower center of the shuttle bed for fixing with the installation shaft on the sewing machine.

[0003] In the related art, in order to achieve lubrication between the guide rail and the track groove during relative rotation, an oil supply channel is generally provided on the shuttle bed. One end of the oil supply channel is communicated with the installation hole of the shuttle bed, and the other end is communicated with the guide rail groove of the shuttle bed. During operation, through the oil hole in the center of the sewing machine installation shaft, oil is stored in the upper part of the shuttle bed installation hole, and then under the action of centrifugal force and the oil pump, the lubricating oil is supplied to the guide rail groove of the shuttle bed through the oil supply channel, so as to form an oil film between the relatively rotating shuttle bed guide rail groove and the shuttle frame guide rail to achieve lubrication.

[0004] However, affected by the shapes of the shuttle bed and the shuttle frame, the lubricating oil can only form an oil film with a relatively small area on the surface of the guide rail groove or the guide rail, that is, the lubricating oil is more at the position closer to the oil outlet end of the oil supply channel, and conversely, there will be a shortage or even lack of oil at the position farther from the oil outlet end, which severely shortens the service life of the rotary shuttle. Summary of the Utility Model

[0005] In order to solve at least one technical problem mentioned in the background art, the purpose of the utility model is to provide a shuttle bed and a rotary shuttle.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] On the one hand, the utility model provides a shuttle bed, including a shuttle bed body, an installation hole and a track groove are provided on the shuttle bed body, a first oil supply channel with two ends respectively communicated with the track groove and the installation hole is provided on the shuttle bed body, a second oil supply channel is further provided on the shuttle bed body. An included angle α is formed between the first oil supply channel and the second oil supply channel in the axial projection of the shuttle bed body. The second oil supply channel is communicated with the installation hole, and at least part of the second oil supply channel is opened on the inner peripheral wall of the shuttle bed body to form a groove, and the end of the groove far from the installation hole is communicated with the track groove.

[0008] As an optional implementation manner of the utility model, the included angle α is between 140° and 150°.

[0009] As an alternative embodiment of the present utility model, the included angle α is 145°.

[0010] As an alternative embodiment of the present utility model, the second oil supply channel further includes an oil inlet channel, one end of the oil inlet channel is communicated with the mounting hole, and the other end is communicated with the groove.

[0011] As an alternative embodiment of the present utility model, the cross-section of the groove is semi-circular.

[0012] As an alternative embodiment of the present utility model, an oil cavity is further provided on the peripheral wall of the bobbin body, and the first oil supply channel is communicated with the track groove through the oil cavity.

[0013] As an alternative embodiment of the present utility model, an oil storage component capable of absorbing lubricating oil is provided in the oil cavity.

[0014] As an alternative embodiment of the present utility model, the oil storage component includes a wool felt.

[0015] As an alternative embodiment of the present utility model, the first oil supply channel includes a first channel and a second channel; the first channel is provided on the bottom wall of the bobbin body, one end of which is communicated with the mounting hole, and the other end is communicated with one end of the second channel; the second channel is provided on the peripheral wall of the bobbin body, and the end far from the first channel is communicated with the track groove.

[0016] On the other hand, the present utility model provides a rotating bobbin, including a bobbin and a bobbin holder, and the bobbin adopts the above-mentioned bobbin.

[0017] Compared with the prior art, the advantages of adopting this solution are as follows:

[0018] Based on the first oil supply channel, a second oil supply channel is additionally provided on the bobbin body in this solution, and the two oil supply channels are arranged at an included angle α, so that the track groove is equivalent to having two spaced oil inlet points. Therefore, when the rotating bobbin is in use, the oil supply to the track groove can be increased, so that lubricating oil exists in the entire track groove, ensuring sufficient lubricating oil in the track groove.

[0019] In addition, in this solution, part of the second oil supply channel is designed as a groove, and under the action of the groove, the problem of delayed oil supply speed of the first oil supply channel can be effectively avoided. Specifically:

[0020] Without the existence of the second oil supply channel and only setting the first oil supply channel, such a problem will occur. After the guide rail of the bobbin holder is installed in the track groove of the bobbin, due to the relatively tight fit between the guide rail and the track groove, when the bobbin rotates at a high speed, a short-term vacuum state will be formed between the track groove and the track, thus hindering the oil supply speed of the first oil supply channel to the track groove;

[0021] A second oil supply passage is designed. In particular, the existence of the groove enables the groove to communicate with the track groove and connect to the internal space of the shuttle bed, so that the air pressure in the track groove is balanced with the internal space of the shuttle bed body, thus achieving the effect of breaking the vacuum and avoiding the problem of obstruction when the first oil supply passage supplies oil into the track groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is an axial sectional view of the shuttle bed of the present invention;

[0023] Figure 2 is a top view of the shuttle bed of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions of the embodiments of the present invention will be explained and described below with reference to the drawings of the embodiments of the present invention. However, the following embodiments are only the preferred embodiments of the present invention, not all of them. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present invention.

[0025] In the following description, terms such as "inner", "outer", "upper", "lower", "left", "right", etc. indicating directions or positional relationships are only for the convenience of describing the embodiments and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention.

[0026] Embodiment 1

[0027] Please refer to Figure 1 and Figure 2 As shown, this embodiment provides a shuttle bed 1, including a shuttle bed body 10. The shuttle bed body 10 is provided with a mounting hole 13 and a track groove 14. The mounting hole 13 is mainly used for the mating installation of the mounting shaft of the sewing machine, and the track groove 14 is used to fit with the guide rail on the shuttle frame of the rotating shuttle. That is, the guide rail on the shuttle frame is slidably installed in the track groove 14, so that the shuttle frame and the shuttle bed 1 can rotate relative to each other.

[0028] The shuttle bed body 10 is provided with a first oil supply passage 11 and a second oil supply passage 12. The two oil supply passages are mainly used to transport lubricating oil into the track groove 14 to achieve lubrication between the track groove 14 and the guide rail.

[0029] Among them, the two ends of the first oil supply passage 11 are respectively communicated with the track groove 14 and the mounting hole 13.

[0030] In some embodiments, the first oil supply passage 11 includes a first passage 111 and a second passage 112; the first passage 111 is provided on the bottom wall of the shuttle bed body 10, and the second passage 112 is provided on the peripheral wall of the shuttle bed body 10. One end of the first passage 111 communicates with the mounting hole 13, and the other end communicates with one end of the second passage 112; the other end of the second passage 112 (i.e., the end far from the first passage 111) communicates with the track groove 14.

[0031] The second oil supply passage 12 communicates with the mounting hole 13, and at least a part of the second oil supply passage 12 is provided on the inner peripheral wall of the shuttle bed body 10 to form a channel 122, and the end of the channel 122 far from the mounting hole 13 communicates with the track groove 14.

[0032] It should be noted that the channel 122 here can be understood as cutting a notch on the inner peripheral wall of the shuttle bed body 10 as the channel 122, so that the side of the channel 122 facing the center of the shuttle 1 is an open structure.

[0033] The reason for directly cutting the channel 122 on the inner peripheral wall of the shuttle bed body 10 instead of directly drilling a hole inside the inner peripheral wall of the shuttle bed body 10 to form a hole structure similar to the aforementioned second passage 112 is that, firstly, in the existing shuttle bed of the rotating shuttle, the wall thickness of the peripheral wall of the shuttle bed body 10 is not uniform, and the thickness of some regions of its peripheral wall is relatively thin. In these regions, it is very difficult to directly drill a hole to form an oil supply channel. Therefore, in this embodiment, a channel 122 is directly cut on the inner peripheral wall of the shuttle bed body 10 as a part of the second oil supply passage 12.

[0034] In addition, this design of the open channel 122, in addition to the aforementioned considerations in the processing technology, can also facilitate the oil supply of the first oil supply passage 11, specifically reflected in:

[0035] Without the existence of the channel 122 of the second oil supply passage 12, only setting the first oil supply passage 11 will cause such a problem that after the guide rail of the shuttle frame is installed in the track groove 14 of the shuttle bed 1, due to the relatively tight fit between the guide rail and the track groove 14, when the shuttle bed 1 rotates at a high speed, a short-term vacuum state will be formed between the track groove 14 and the track, thus hindering the oil supply speed of the first oil supply passage 11 to the track groove 14;

[0036] The existence of the designed channel 122 enables the channel 122 to communicate with the track groove 14 and the internal space of the shuttle bed 1, so that the air pressure in the track groove 14 is balanced with the internal space of the shuttle bed body 10, thereby achieving the effect of breaking the vacuum to ensure the oil supply speed of the first oil supply passage 11 to the track groove 14.

[0037] The specific structure of the second oil supply channel 12 is as follows: The second oil supply channel 12 further includes an oil inlet channel 121, and the oil inlet channel 121 is provided on the bottom wall of the shuttle body 10; one end of the oil inlet channel 121 is communicated with the mounting hole 13, and the other end is communicated with the channel 122.

[0038] During operation, the oil pump pumps oil to the upper part of the mounting hole 13. With the high-speed rotation of the shuttle 1, a centrifugal force is generated. Under the action of the centrifugal force, the lubricating oil is relatively evenly distributed into the two oil supply channels, and finally the two oil supply channels introduce the lubricating oil into the track groove 14 to achieve lubrication between the track groove 14 and the guide rail.

[0039] In some embodiments, in order to reduce the resistance of the lubricating oil flowing in the channel 122, the cross-section of the channel 122 can be designed as a semi-circle. Here, the cross-section can also be understood as the cross-section of the channel 122 in the radial direction of the rotating shuttle.

[0040] In addition, in this embodiment, an angle α is formed between the first oil supply channel 11 and the second oil supply channel 12 in the axial projection of the shuttle body 10; here, the angle α can also be understood as:

[0041] For the first channel 111 and the second channel 112 in the first oil supply channel 11, the central axes of the two are in the same vertical plane, and this vertical plane is denoted as the first plane; for the channel 122 and the oil inlet channel 121 in the second oil supply channel 12, the central axes of the two are also in the same vertical plane, and this vertical plane is denoted as the second plane. As Figure 2 shown, in the top view state (that is, in the axial projection of the shuttle body 10 mentioned above), the angle between the first plane and the second plane is the aforementioned angle α.

[0042] In this embodiment, the reason for setting the two oil supply channels at an angle α is that in this way, the track groove 14 is equivalent to having two spaced oil inlet points (respectively, the connection point between the first oil supply channel 11 and the track groove 14, and the connection point between the second oil supply channel 12 and the track groove 14). Therefore, when the rotating shuttle is in use, the oil inlet in the track groove 14 can be increased, so that lubricating oil exists in the entire track groove 14, ensuring sufficient lubricating oil in the track groove 14.

[0043] Among them, the angle α is between 140° and 150°. Here, the range of the angle α includes 140° and 150°, and preferably it is 145°.

[0044] In some embodiments, the specific connection structure between the first oil supply passage 11 and the track groove 14 is as follows: An oil cavity 15 is further provided on the peripheral wall of the shuttle bed body 10. The first oil supply passage 11 is connected to the track groove 14 through the oil cavity 15. Specifically, one end of the second passage 112 away from the first passage 111 is connected to the oil cavity 15, and the oil cavity 15 is connected to the track groove 14.

[0045] The specific formation of the oil cavity 15 can be achieved by radially drilling a hole inward on the outer peripheral wall of the shuttle bed body 10 to connect to the track groove 14, and then installing a blanking cover 16 outside the hole to seal the hole. In this way, the oil cavity 15 is formed in the hole under the sealing of the blanking cover 16.

[0046] In addition, an oil storage component (not shown in the figure) capable of absorbing lubricating oil is provided in the oil cavity 15. For example, the oil storage component can be made of a component such as wool felt that can absorb oil. In this way, the wool felt can absorb and store part of the lubricating oil in the oil cavity 15, and the lubricating oil is coated on the track by contacting the guide rail in the track groove 14 to achieve lubrication.

[0047] Embodiment 2

[0048] Combined with Figure 1 and Figure 2 As shown, on the basis of Embodiment 1, this embodiment further provides a rotating shuttle, which includes a shuttle bed 1 and a shuttle frame (not shown in the figure) installed in the shuttle bed 1. Among them, the shuttle bed 1 in this embodiment adopts the shuttle bed 1 provided in Embodiment 1; and a guide rail adapted to the track groove 14 of the shuttle bed 1 is provided on the shuttle frame. In the assembled state, the guide rail is installed in the track groove 14 and can rotate in the track groove 14, so as to realize the relative rotation of the shuttle frame and the shuttle bed 1.

[0049] Regarding the specific structures of the shuttle frame and the shuttle bed 1, there are many descriptions and applications in the existing rotating shuttles, and no more details will be elaborated here.

[0050] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention.

Claims

1. A bobbin case, comprising a bobbin case body, wherein an installation hole and a track groove are provided on the bobbin case body, and a first oil supply channel with two ends respectively communicating with the track groove and the installation hole is provided on the bobbin case body, characterized in that, A second oil supply passage is further provided on the bobbin body. An included angle α is formed between the first oil supply passage and the second oil supply passage in the axial projection of the bobbin body. The second oil supply passage is communicated with the mounting hole, and at least part of the second oil supply passage is formed as a channel on the inner peripheral wall of the bobbin body. One end of the channel away from the mounting hole is communicated with the track groove.

2. A shuttle bed according to claim 1, characterized in that, The included angle α is between 140° and 150°.

3. A shuttle bed according to claim 2, characterized in that, The included angle α is 145°.

4. A shuttle bed according to claim 1, characterized in that, The second oil supply passage further includes an oil inlet passage. One end of the oil inlet passage is communicated with the mounting hole, and the other end is connected with the channel.

5. A shuttle bed according to claim 1, characterized in that, The cross section of the channel is semicircular.

6. A shuttle bed according to claim 1, characterized in that, An oil cavity is further provided on the peripheral wall of the bobbin body. The first oil supply passage is communicated with the track groove through the oil cavity.

7. A bobbin case according to claim 6, characterized in that, An oil storage component capable of absorbing lubricating oil is provided in the oil cavity.

8. A shuttle bed according to claim 7, characterized in that, The oil storage component includes wool felt.

9. A shuttle bed according to claim 1, characterized in that The first oil supply passage includes a first passage and a second passage; the first passage is provided on the bottom wall of the bobbin body, one end of which is communicated with the mounting hole, and the other end is connected with one end of the second passage; the second passage is provided on the peripheral wall of the bobbin body, and the end away from the first passage is connected with the track groove.

10. A rotating shuttle, comprising a shuttle bed and a shuttle frame, characterized in that, The bobbin adopts the bobbin according to any one of claims 1-9.

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