Cap embroidery shuttle box with lubricating function

Abstract

The cap embroidery shuttle box with the lubricating function comprises a shuttle box body, a rotating shuttle shaft used for being connected with a rotating shuttle, two rotating shuttle shaft sleeves and a lubricating assembly, the two rotating shuttle shaft sleeves are coaxially arranged and arranged on the shuttle box body, and the two rotating shuttle shaft sleeves are rotationally connected to the two ends of the rotating shuttle shaft respectively; the lubricating assembly comprises two lubricating pipes and a lubricating pump, the two lubricating pipes correspond to the two rotating shuttle shaft sleeves, one ends of the two lubricating pipes are arranged at two pump openings of the lubricating pump respectively, and the other ends of the lubricating pipes are used for pumping lubricating oil between the rotating shuttle shaft and the rotating shuttle shaft sleeves. The rotating shuttle shaft has the effect that lubricating oil can be conveniently added between the rotating shuttle shaft sleeve and the rotating shuttle shaft.

Description

Technical Field

[0001] The present application relates to the field of embroidery machines, and in particular to a cap embroidery shuttle box with a lubricating function. Background Art

[0002] The cap embroidery shuttle box is part of the embroidery machine. It is an important component of the cap embroidery garment embroidery machine and is used for the supply and management of thread during the embroidery process.

[0003] At present, the Chinese invention patent with publication number CN114000274A discloses an embroidery machine shuttle box mechanism, including a rotary hook assembly, and a movable knife, which has a first hole body rotatably connected to the rotary hook seat, a second hole body, a hook groove for hooking embroidery thread, and a knife tip portion for inserting between two surface threads; a fixed knife connected to the rotary hook seat and provided with a blade portion; the hook groove passes through the blade tip portion during the rotation of the movable knife; a movable knife rotation driving component is connected to the second hole body and to a control device, and is used to drive the movable knife to rotate along the first hole body. The rotary hook assembly includes a rotary hook shaft and two rotary hook shaft sleeves, the rotary hook shaft sleeves are arranged on the shuttle box body, and the two rotary hook shaft sleeves are rotatably connected to the two ends of the rotary hook shaft. This application can realize the embroidery thread cutting operation by cooperating with the rotary hook assembly through a specific movable knife, fixed knife, and movable knife rotation driving component structure. The thread cutting success rate is extremely high, and no additional thread buckling mechanism is required, thereby reducing costs.

[0004] Nowadays, the rotation speed of the high-speed hook shaft is 2500-5000 stitches per minute. The hook shaft and the hook sleeve will generate frictional heat, which will cause the lubricating oil to fail and the lubrication performance to decline. It is necessary to stop the machine to add lubricating oil between the hook shaft and the hook sleeve. The operation is relatively cumbersome and requires skilled staff to operate. If the lubricating oil is not added in time, the hook shaft and the hook sleeve will be stuck, resulting in a significant increase in subsequent maintenance costs. Summary of the Invention

[0005] In order to facilitate the addition of lubricating oil between the rotary hook sleeve and the rotary hook shaft, the present application provides a cap embroidery shuttle box with a lubricating function.

[0006] The present application provides a cap embroidery shuttle box with a lubricating function, which adopts the following technical solutions: A cap embroidery shuttle box with a lubrication function comprises a shuttle box body, a shuttle shaft for connecting to a rotary shuttle, two shuttle shaft sleeves and a lubrication assembly, wherein the two shuttle shaft sleeves are coaxially arranged and arranged on the shuttle box body, and the two shuttle shaft sleeves are respectively rotatably connected to the two ends of the shuttle shaft; the lubrication assembly comprises two lubrication pipes and a lubrication pump, the two lubrication pipes correspond to the two shuttle shaft sleeves, one end of the two lubrication pipes is respectively arranged at the two pump ports of the lubrication pump, and the other end of the lubrication pipe is used to pump lubricating oil into between the shuttle shaft and the shuttle shaft sleeve.

[0007] By adopting the above technical solution, the lubrication pump can continuously pump lubricating oil between the hook shaft and the hook sleeve through the lubrication pipe box, solving the problem of having to stop the machine to manually add lubricating oil, reducing downtime, improving production efficiency, and avoiding the degradation of lubrication performance due to lubricating oil failure, reducing the risk of the hook shaft and the sleeve being stuck due to friction heat, and reducing maintenance costs.

[0008] Optionally, a limiting groove is provided on the side wall of the shuttle box body, and a lubrication pipe for lubricating the rotary hook sleeve near the rotary hook position is located in the limiting groove, and the limiting groove can control and limit the direction of the lubrication pipe.

[0009] By adopting the above technical solution, the layout of the lubrication pipe is standardized to avoid interference with other components during equipment operation, thereby ensuring the stability of equipment operation and reducing problems with the lubricating oil output rate caused by contact during operation of the cap embroidery shuttle box.

[0010] Optionally, the rotary hook sleeve includes a rotary hook outer sleeve and a rotary hook inner sleeve, the rotary hook outer sleeve is provided with an oil inlet hole, the oil inlet hole is connected to a corresponding lubrication pipe, the rotary hook outer sleeve is provided with an oil outlet hole, the shuttle box body is provided with an overflow hole, the oil outlet hole is connected to the overflow hole, the inner side wall of the rotary hook outer sleeve is provided with an annular groove, the rotary hook outer sleeve and the rotary hook inner sleeve form a cavity for accommodating lubricating oil, and the rotary hook inner sleeve is provided with a plurality of lubrication holes connected to the rotary hook shaft.

[0011] By adopting this technical solution, the oil inlet of the hook's outer sleeve connects to the lubrication pipe, and the oil outlet connects to the overflow hole of the shuttle box body, forming a lubricating oil circulation path. During its flow, the lubricating oil removes frictional heat generated by the rotation of the hook shaft, reducing component temperatures and slowing the rate at which the lubricating oil loses its effectiveness due to high temperatures. The annular groove on the inner wall of the hook's outer sleeve cooperates with the lubrication hole of the hook's inner sleeve to evenly distribute the lubricating oil across the friction surface between the hook shaft and the inner sleeve, improving both uniformity and sufficiency of lubrication. Furthermore, the cavity formed by the outer and inner sleeves temporarily holds the lubricating oil, ensuring continuous lubrication. Excess lubricating oil is discharged through the overflow hole, preventing accumulation.

[0012] Optionally, a spiral groove is provided on the rotary hook shaft, and the spiral groove allows the lubricating oil to flow through the lubrication hole.

[0013] By adopting the above technical solution, the spiral groove on the hook shaft can guide the lubricating oil passing through the lubrication hole to flow evenly along the axial direction, so that the lubricating oil covers a larger contact area, further improving the lubrication effect and reducing local friction overheating. The structure of the spiral groove helps the lubricating oil form a dynamic lubricating film when the hook shaft rotates, thereby improving the reliability and efficiency of lubrication.

[0014] Optionally, an auxiliary part for increasing the flow of lubricating oil is further provided on the inner sleeve of the rotating hook, the auxiliary part comprising an auxiliary push plate, an auxiliary spring and a sealing gasket, an auxiliary cavity is provided on the inner sleeve of the rotating hook, the auxiliary push plate is located in the auxiliary cavity, the auxiliary push plate is slidably connected to the auxiliary cavity along the axial direction of the inner sleeve of the rotating hook, the auxiliary push plate divides the auxiliary cavity into a sealing cavity and a control cavity, the sealing cavity is filled with an inert gas that expands when heated, the sealing gasket is located in the sealing cavity, the sealing gasket is arranged on the auxiliary push plate, the sealing gasket abuts against the inner side wall of the auxiliary cavity, an auxiliary oil inlet hole is provided on the auxiliary push plate, a connecting hole for communicating with the auxiliary oil inlet hole is provided on the inner sleeve of the rotating hook, the auxiliary spring is located in the control cavity, and the auxiliary spring is used to make the connecting hole and the auxiliary oil inlet hole in a staggered state under normal temperature.

[0015] By adopting the above technical solution, the auxiliary component utilizes the characteristic of inert gas expanding when it encounters heat. When the temperature rises due to frictional heat, the inert gas in the sealing cavity expands and pushes the auxiliary push plate, so that the auxiliary oil inlet hole is aligned with the connecting hole, thereby increasing the flow of lubricating oil, automatically enhancing lubrication at high temperatures, adapting to temperature changes during equipment operation, and preventing insufficient lubrication due to temperature increases. At room temperature, the auxiliary spring causes the connecting hole and the auxiliary oil inlet hole to be misaligned, thereby avoiding excessive delivery of lubricating oil and ensuring that the lubrication system can operate stably at different temperatures.

[0016] Optionally, a gas filling hole for adding inert gas into the sealing cavity is further provided on the inner sleeve of the rotary shuttle, the gas filling hole is connected to the control cavity, a sealing part is provided in the gas filling hole, the sealing part includes a sealing head, a sealing rod and a sealing spring, an avoidance ring groove is provided on the side wall of the gas filling hole, the sealing rod is slidably connected to the gas filling hole along the axis of the gas filling hole, the sealing head is located in the avoidance ring groove, the diameter of the sealing head is smaller than the diameter of the avoidance ring groove but larger than the diameter of the gas filling hole, and the sealing spring is used for the sealing head to abut against the inner side wall of the avoidance ring groove away from the sealing cavity.

[0017] By adopting the above technical solution, the air adding hole is used to add inert gas into the sealing cavity, ensuring the amount of inert gas in the sealing cavity, so that the auxiliary push plate can correctly respond to temperature changes and maintain the stability and reliability of the auxiliary lubrication function. The sealing part can seal the air adding hole to prevent the leakage of inert gas and ensure the reliability of the auxiliary part.

[0018] Optionally, two blocking pieces for limiting the movement of the rotary hook sleeve are further provided on the rotary hook shaft, and two snap ring grooves are provided on the rotary hook shaft, and the two blocking pieces correspond to the two snap ring grooves, and the blocking pieces are snapped onto the snap ring grooves, and the two blocking pieces respectively abut against the two side walls of the rotary hook shaft.

[0019] By adopting the above technical solution, the blocking piece is clamped on the clamping ring of the rotary hook shaft and abuts against the two side walls of the rotary hook sleeve, thereby limiting the axial movement of the rotary hook sleeve, avoiding poor lubrication or increased friction caused by sleeve displacement, ensuring the relative position of the rotary hook shaft and the sleeve is stable, and ensuring the operation accuracy of the equipment.

[0020] Optionally, the blocking plate includes two blocking half rings, and the two blocking half rings are connected by bolts.

[0021] By adopting the above technical solution, the blocking plate is connected by two blocking half rings through bolts, which facilitates the installation and removal of the hook sleeve and improves the convenience of equipment maintenance.

[0022] Optionally, the blocking half ring is provided with a mating part for reducing the friction with the rotary hook sleeve, and the mating part includes a pushing half ring, a plurality of pushing balls and a pushing spring. The pushing half ring is slidably connected to the blocking half ring along the radial direction of the blocking half ring, and the plurality of pushing balls are distributed along the axial direction of the pushing ring. The pushing balls are rollingly connected to the pushing half ring, and the pushing spring is used to push the pushing half ring and make the pushing balls abut against the side wall of the rotary hook sleeve.

[0023] By adopting the above technical solution, the matching piece enables the blocking half ring and the hook shaft sleeve to contact through the ball, thereby converting the sliding friction into rolling friction, reducing the resistance of the blocking piece to the rotation of the hook shaft sleeve, ensuring smooth rotation of the hook shaft and reducing energy loss.

[0024] Optionally, a clamping block is provided at one end of the pushing half ring, and a clamping groove is provided at the other end of the pushing half ring, and the two pushing half rings form a complete pushing ring through the clamping block and the clamping groove.

[0025] By adopting the above technical solution, the pushing half ring is connected to the clamping groove through the clamping block to form a complete pushing ring, which is convenient for quick splicing during installation and improves assembly efficiency. The clamping structure makes the pushing ring form a whole, ensuring that the pushing ball evenly abuts the side wall of the sleeve and maintains the consistency of the friction reduction effect.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The lubrication assembly consisting of a lubrication pump and a lubrication pipe can automatically pump lubricating oil between the hook shaft and the hook sleeve, reducing the risk of the hook shaft and sleeve getting stuck due to untimely lubrication. 2. The oil inlet and outlet holes of the hook's outer sleeve form a circulation path with the overflow hole of the shuttle box body. This, combined with the inner ring groove and the lubrication hole of the hook's inner sleeve, reduces the possibility of lubricating oil failure caused by frictional heat. 3. The auxiliary parts utilize the thermal expansion characteristics of inert gas to achieve temperature-sensitive lubrication quantity adjustment through auxiliary push plates and auxiliary springs, reducing the situation of insufficient lubrication at high temperatures or excess oil at room temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural diagram of a cap embroidery shuttle box with a lubrication function.

[0028] Figure 2 yes Figure 1 Schematic diagram of the structure of the middle hook sleeve.

[0029] Figure 3 yes Figure 2 Cross-sectional view of the outer sleeve of the central hook.

[0030] Figure 4 yes Figure 3 Cross-sectional view of the inner sleeve of the hook.

[0031] Figure 5 yes Figure 4 The enlarged view of point A in the middle is used to show the matching relationship between the sealing part and the air hole.

[0032] Figure 6 yes Figure 2 Schematic diagram of the structure of the middle blocking plate.

[0033] Figure 7 yes Figure 1 Schematic diagram of the structure of the lubrication component.

[0034] Figure 8 yes Figure 1 Schematic diagram of the bottom of the shuttle box body, used to show the limit groove and lubrication Reference numerals: 1, shuttle box body; 11, overflow hole; 12, limit groove; 2, rotary hook shaft; 21, spiral groove; 22, snap ring groove; 3, rotary hook sleeve; 31, rotary hook outer sleeve; 311, ring groove; 312, oil inlet hole; 313, oil outlet hole; 32, rotary hook inner sleeve; 321, lubrication hole; 322, auxiliary cavity; 323, air filling hole; 324, avoidance ring groove; 33, auxiliary component; 331, auxiliary push plate; 332, auxiliary spring; 333. Sealing gasket; 334. Sealing chamber; 335. Control chamber; 336. Auxiliary oil inlet hole; 337. Connecting hole; 4. Lubrication assembly; 41. Lubrication pump; 42. Lubrication pipe; 5. Sealing piece; 51. Sealing head; 52. Sealing rod; 53. Sealing spring; 6. Blocking piece; 61. Blocking half ring; 62. Fitting piece; 621. Pushing half ring; 622. Pushing ball; 623. Pushing spring; 624. Snap-in block; 625. Snap-in groove. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1 -Attached Figure 8 This application is described in further detail.

[0036] The embodiment of the present application discloses a cap embroidery shuttle box with lubrication function. Figure 1 and Figure 2 A cap embroidery shuttle box with a lubrication function includes a shuttle box body 1, a shuttle shaft 2 for connecting with the shuttle, two shuttle shaft sleeves 3 and a lubricating assembly 4. The two shuttle shaft sleeves 3 are distributed along the length direction of the shuttle box body 1, the axial direction of the shuttle shaft sleeve 3 is parallel to the length direction of the shuttle box body 1, the length direction of the shuttle shaft 2 is parallel to the distribution direction of the two shuttle shaft sleeves 3, the two ends of the shuttle shaft 2 are respectively rotatably connected to the shuttle shaft sleeve 3, and the lubricating assembly 4 is used to lubricate the shuttle shaft 2 and the shuttle shaft sleeve 3 by passing lubricating oil.

[0037] Reference Figure 2 and Figure 3 The rotary hook sleeve 3 includes a rotary hook outer sleeve 31 and a rotary hook inner sleeve 32. The axis direction of the rotary hook outer sleeve 31 is parallel to the length direction of the shuttle box body 1. The rotary hook outer sleeve 31 is fixedly arranged on the rotary hook body. The rotary hook inner sleeve 32 is coaxially arranged with the rotary hook outer sleeve 31. The rotary hook inner sleeve 32 is rotatably connected to the inner side wall of the rotary hook outer sleeve 31. The rotary hook inner sleeve 32 is provided with a plurality of lubrication holes 321. The plurality of lubrication holes 321 are evenly distributed on the rotary hook. An annular groove 311 is formed on the outer wall of the shuttle inner sleeve 32 and the inner wall of the rotary hook outer sleeve 31. The rotary hook outer sleeve 31 and the rotary hook inner sleeve 32 form a cavity for accommodating lubricating oil, and the cavity is connected to the lubrication hole 321. The rotary hook outer sleeve 31 is formed with an oil inlet hole 312 and an oil outlet hole 313, both of which are connected to the cavity. The shuttle box body 1 is formed with an overflow hole 11, and the oil outlet hole 313 is connected to the overflow hole 11.

[0038] Reference Figure 3 and Figure 4 The inner sleeve 32 of the rotary hook is provided with four auxiliary cavities 322. The auxiliary cavity 322 extends along the axial direction of the inner sleeve 32 of the rotary hook. An auxiliary part 33 is provided in the auxiliary cavity 322. The auxiliary part 33 includes an auxiliary push plate 331, an auxiliary spring 332 and a sealing gasket 333. The auxiliary push plate is slidably connected to the auxiliary cavity 322 along the axial direction of the inner sleeve 32 of the rotary hook. The auxiliary push plate divides the auxiliary cavity 322 into a sealing cavity 334 and a control cavity 335. The sealing cavity 334 is filled with an inert gas that expands when heated. The inert gas is helium. The sealing gasket 333 is located in the sealing cavity 334. The sealing gasket 333 is fixedly arranged on the auxiliary push plate 331. The sealing gasket 333 abuts against the inner side wall of the auxiliary cavity 322. The auxiliary spring 332 is located in the control cavity 335. The length of the auxiliary spring 332 is parallel to the auxiliary push plate 331. In the sliding direction of the movable plate, one end of the auxiliary spring 332 is fixedly mounted on the auxiliary push plate, and the other end of the auxiliary spring 332 is fixedly mounted on the inner side wall of the auxiliary cavity 322. The auxiliary push plate 331 is provided with three auxiliary oil inlet holes 336, which are distributed along the sliding direction of the auxiliary push plate 331. The inner sleeve 32 of the rotary hook is provided with three connecting holes 337, which correspond to the three auxiliary oil inlet holes 336. When the temperature of the rotary hook shaft 2 rises, the expansion of the inert gas drives the auxiliary push plate 331 to move, so that the auxiliary oil inlet holes 336 and the connecting holes 337 are connected, and lubricating oil can enter the rotary hook shaft 2 through the auxiliary oil inlet holes 336. When the rotary hook shaft 2 is at room temperature, the connecting holes 337 and the auxiliary oil inlet holes 336 are misaligned under the action of the auxiliary spring 332.

[0039] Reference Figure 4 and Figure 5The side wall of the inner sleeve 32 of the rotary hook is provided with a gas filling hole 323 for filling the sealing cavity 334 with inert gas. The gas filling hole 323 extends along the axial direction of the inner sleeve 32 of the rotary hook. The gas filling hole 323 is connected to the sealing cavity 334. The inner side wall of the gas filling hole 323 is provided with an avoidance ring groove 324. A sealing member 5 is provided in the avoidance ring groove 324. The sealing member 5 includes a sealing head 51, a sealing rod 52 and a sealing spring 53. The length direction of the sealing rod 52 is parallel to the axial direction of the gas filling hole 323. The sealing rod 52 is slidably connected to the gas filling hole 323 along the axial direction of the gas filling hole 323 to seal. The plugging head 51 is fixedly arranged at the end of the blocking rod 52 away from the sealing cavity 334. The peripheral side wall of the blocking head 51 and the end of the blocking head 51 away from the blocking rod 52 are provided with abutting inclined surfaces. The abutting inclined surfaces are used to abut against the inner side wall of the avoidance ring groove 324 away from the sealing cavity 334. The diameter of the blocking head 51 is smaller than the avoidance ring groove 324, and the diameter of the blocking head 51 is larger than the diameter of the air filling hole 323. The blocking spring 53 is sleeved on the length direction of the blocking rod 52. One end of the blocking spring 53 is fixedly arranged on the blocking head 51, and the other end of the blocking spring 53 is fixedly arranged on the inner sleeve 32 of the rotary hook.

[0040] Reference Figure 4 and Figure 6 , a spiral groove 21 is provided on the rotary hook shaft 2, and the inner sleeve 32 of the rotary hook covers the spiral groove 21. The rotary hook shaft 2 is provided with two blocking pieces 6 that limit the movement of the rotary hook shaft 2 along the length direction of the inner sleeve 32 of the rotary hook. The rotary hook shaft 2 is provided with two snap ring grooves 22, and the two snap ring grooves 22 are located on both sides of the inner sleeve 32 of the rotary hook. The two blocking pieces 6 correspond to the two snap rings. The blocking piece 6 includes two blocking half rings 61. The inner side walls of the two blocking half rings 61 are used to snap into the snap ring grooves 22. The two ends of the two blocking half rings 61 are fixed and tightened by bolts. The blocking half ring 61 is provided with a mating piece 62 that reduces the friction force with the outer sleeve 31 of the rotary hook. The mating piece 62 includes a pushing half ring 621, a plurality of pushing balls 622 and a pushing spring 623. The pushing half ring 621 slides along the axial direction of the blocking half ring 61 and is connected to the blocking On the blocking half ring 61, several pushing balls 622 are distributed along the arc direction of the pushing half ring 621. The pushing balls 622 are rollingly connected to the side wall of the pushing half ring 621 facing the outer shaft sleeve 31 of the rotary hook, and the pushing balls 622 abut against the side wall of the outer shaft sleeve 31 of the rotary hook. The length of the pushing spring 623 is parallel to the axial direction of the blocking half ring 61. The pushing spring 623 is located on the side of the pushing half ring 621 away from the outer shaft sleeve 31 of the rotary hook. One end of the pushing spring 623 is fixedly provided on the pushing half ring 621, and the other end of the pushing spring 623 is fixedly provided on the blocking half ring 61. One end of the pushing half ring 621 is fixedly provided with a clamping block 624, and the other end of the pushing half ring 621 is provided with a clamping groove 625. The two pushing half rings 621 are clamped together by the clamping block 624 and the clamping groove 625 to form a complete pushing ring.

[0041] Reference Figure 7 and Figure 8 The lubrication assembly 4 includes a lubrication pump 41 and two lubrication pipes 42. The two lubrication pipes 42 correspond to the two rotary hook sleeves 3. One end of the two lubrication pipes 42 is respectively fixedly arranged at the pump port of the lubrication pump 41. One end of the lubrication pipe 42 corresponding to the rotary hook outer sleeve 31 farther away from the rotary hook is directly communicated with the oil inlet hole 312 of the rotary hook outer sleeve 31. The other end of the lubrication pipe 42 corresponding to the rotary hook outer sleeve 31 closer to the selected rotary hook is passed through the shuttle box body 1 and then communicated with the oil inlet hole 312 of the corresponding rotary hook outer sleeve 31. Both side walls of the shuttle box body 1 are provided with limiting grooves 12, which are used to limit the movement of the corresponding lubrication pipe 42 and limit the lubrication pipe 42 from being exposed to the shuttle box body 1.

[0042] The implementation principle of the cap embroidery shuttle box with lubrication function in the embodiment of the present application is as follows: the staff can perform lubrication operation between the rotary hook shaft 2 and the rotary hook sleeve 3 through the lubrication component 4. As the rotation time of the rotary hook shaft 2 increases and the rotation speed of the rotary hook shaft 2 is faster, the rotary hook shaft 2 and the rotary hook sleeve 3 generate a large amount of friction heat, and the temperature of the rotary hook sleeve 3 increases. At this time, the inert gas in the auxiliary cavity 322 of the sleeve 32 inside the rotary hook expands due to heat, so that the auxiliary spring 332 is compressed, so that the auxiliary oil inlet hole 336 is connected with the connecting hole 337, forming a new channel for the flow of lubricating oil, thereby increasing the flow rate of the lubricating oil between the rotary hook shaft 2 and the rotary hook sleeve 3, increasing the flow rate of the lubricating oil, so that a large amount of heat is taken away by the lubricating oil, thereby reducing the temperature rise of the rotary hook sleeve 3.

[0043] The blocking piece 6 is used to limit the slippage of the hook shaft 2 relative to the hook sleeve 3, and the blocking piece 6 converts the sliding friction with the hook outer sleeve 31 into rolling friction through the matching piece 62, further reducing the friction of the hook sleeve 3 and reducing the temperature rise of the hook sleeve 3.

[0044] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A cap embroidery shuttle box with lubrication function, characterized by: The invention comprises a shuttle box body (1), a rotary shuttle shaft (2) for connecting with a rotary shuttle, two rotary shuttle shaft sleeves (3) and a lubricating assembly (4), wherein the two rotary shuttle shaft sleeves (3) are coaxially arranged, the rotary shuttle shaft sleeves (3) are arranged on the shuttle box body (1), the two rotary shuttle shaft sleeves (3) are rotatably connected to the two ends of the rotary shuttle shaft (2), and the lubricating assembly (4) comprises two lubricating pipes (42) and a lubricating pump (41), the two lubricating pipes (42) correspond to the two rotary shuttle shaft sleeves (3), one end of the two lubricating pipes (42) is respectively arranged at the two pump ports of the lubricating pump (41), and the other end of the lubricating pipe (42) is used to pump lubricating oil into between the rotary shuttle shaft (2) and the rotary shuttle shaft sleeve (3).

2. The cap embroidery shuttle box with lubrication function according to claim 1, characterized in that: A limiting groove (12) is provided on the side wall of the shuttle box body (1), and a lubricating tube (42) for lubricating the rotary shuttle sleeve (3) near the rotary shuttle is located in the limiting groove (12). The limiting groove (12) can control and limit the direction of the lubricating tube (42).

3. The cap embroidery shuttle box with lubrication function according to claim 1, characterized in that: The rotary hook shaft sleeve (3) comprises a rotary hook outer shaft sleeve (31) and a rotary hook inner shaft sleeve (32); the rotary hook outer shaft sleeve (31) is provided with an oil inlet hole (312), the oil inlet hole (312) is communicated with a corresponding lubrication pipe (42); the rotary hook outer shaft sleeve (31) is provided with an oil outlet hole (313); the shuttle box body (1) is provided with an overflow hole (11), the oil outlet hole (313) is communicated with the overflow hole (11); an annular groove (311) is provided on the inner side wall of the rotary hook outer shaft sleeve (31); the rotary hook outer shaft sleeve (31) and the rotary hook inner shaft sleeve (32) form a cavity for accommodating lubricating oil; the rotary hook inner shaft sleeve (32) is provided with a plurality of lubrication holes (321) communicated with the rotary hook shaft (2).

4. The cap embroidery shuttle box with lubrication function according to claim 3, characterized in that: A spiral groove (21) is provided on the rotary hook shaft (2), and the spiral groove (21) allows lubricating oil to flow through the lubrication hole (321).

5. The cap embroidery shuttle box with lubrication function according to claim 3, characterized in that: The hook inner shaft sleeve (32) is also provided with an auxiliary part (33) for increasing the flow rate of lubricating oil. The auxiliary part (33) includes an auxiliary push plate (331), an auxiliary spring (332) and a sealing gasket (333). The hook inner shaft sleeve (32) is provided with an auxiliary cavity (322). The auxiliary push plate (331) is located in the auxiliary cavity (322). The auxiliary push plate (331) is connected to the auxiliary cavity (322) by sliding along the axis direction of the hook inner shaft sleeve (32). The auxiliary push plate (331) divides the auxiliary cavity (322) into a sealing cavity (334) and a control cavity (335). The sealing cavity (334) is provided with an auxiliary cavity (322). The auxiliary cavity (322) is filled with an inert gas that expands when heated. The sealing gasket (333) is located in the sealing cavity (334). The sealing gasket (333) is arranged on the auxiliary push plate (331). The sealing gasket (333) abuts against the inner wall of the auxiliary cavity (322). The auxiliary push plate (331) is provided with an auxiliary oil inlet hole (336). The hook inner sleeve (32) is provided with a connecting hole (337) for communicating with the auxiliary oil inlet hole (336). The auxiliary spring (332) is located in the control cavity (335). The auxiliary spring (332) is used to keep the connecting hole (337) and the auxiliary oil inlet hole (336) in a misaligned state under normal temperature.

6. The cap embroidery shuttle box with lubrication function according to claim 5, characterized in that: The hook inner shaft sleeve (32) is further provided with a gas-filling hole (323) for adding inert gas into the sealing cavity (334). The gas-filling hole (323) is communicated with the control cavity (335). A blocking member (5) is provided in the gas-filling hole (323). The blocking member (5) includes a blocking head (51), a blocking rod (52) and a blocking spring (53). A sidewall of the gas-filling hole (323) is provided with an avoidance ring groove (324). The blocking rod (52) is slidably connected to the air filling hole (323) along the axis of the air filling hole (323), and the blocking head (51) is located in the avoidance ring groove (324). The diameter of the blocking head (51) is smaller than the diameter of the avoidance ring groove (324) but larger than the diameter of the air filling hole (323). The blocking spring (53) is used for the blocking head (51) to abut against the inner side wall of the avoidance ring groove (324) away from the sealing cavity (334).

7. The cap embroidery shuttle box with lubrication function according to claim 1, characterized in that: The rotary hook shaft (2) is further provided with two blocking pieces (6) for limiting the movement of the rotary hook sleeve (3); the rotary hook shaft (2) is provided with two snap ring grooves (22); the two blocking pieces (6) correspond to the two snap ring grooves (22); the blocking pieces (6) are snapped onto the snap ring grooves (22); and the two blocking pieces (6) respectively abut against the two side walls of the rotary hook shaft (2).

8. The cap embroidery shuttle box with lubrication function according to claim 7, characterized in that: The blocking plate (6) comprises two blocking half rings (61), and the two blocking half rings (61) are connected by bolts.

9. The cap embroidery shuttle box with lubrication function according to claim 8, characterized in that: The blocking half ring (61) is provided with a matching piece (62) for reducing the friction force with the rotary hook sleeve (3). The matching piece (62) includes a pushing half ring (621), a plurality of pushing balls (622) and a pushing spring (623). The pushing half ring (621) is connected to the blocking half ring (61) by sliding along the radial direction of the blocking half ring (61). The plurality of pushing balls (622) are distributed along the axial direction of the pushing ring. The pushing balls (622) are rollingly connected to the pushing half ring (621). The pushing spring (623) is used to push the pushing half ring (621) and make the pushing balls (622) abut against the side wall of the rotary hook sleeve (3).

10. The cap embroidery shuttle box with lubrication function according to claim 9, characterized in that: One end of the pushing half ring (621) is provided with a clamping block (624), and the other end of the pushing half ring (621) is provided with a clamping groove (625). The two pushing half rings (621) form a complete pushing ring through the clamping block (624) and the clamping groove (625).

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