CN220789056U

CN220789056U - Quantitative oil supply control device for rotating shuttle

Info

Publication number: CN220789056U
Application number: CN202322501036.5U
Authority: CN
Inventors: 林建刚; 奥智; 李保青; 宋国庆
Original assignee: Jack Technology Co Ltd
Current assignee: Jack Technology Co Ltd
Priority date: 2023-09-14
Filing date: 2023-09-14
Publication date: 2024-04-16
Anticipated expiration: 2033-09-14

Abstract

The rotary shuttle quantitative oil supply control device comprises an oil pump, wherein the oil pump is communicated with an oil supply pipe II through an oil supply pipe I, and an electromagnetic valve is arranged between the oil supply pipe I and the oil supply pipe II; the electromagnetic valve is arranged on the outer side wall of the oil pan, the oil pump and the first oil supply pipe are arranged in the oil pan, the second oil supply pipe is used for supplying oil to lubricate the rotating shuttle moving part, and the rotating shuttle moving part stretches into the oil pan through the oil return pipe; the solenoid valve includes valve body, coil, armature, iron core, spring, sealing washer, and the inside slidable of valve body sets up the iron core, and the outer wall of valve body sets up the coil, and the one end of iron core is contradicted by the spring, makes the sealed oil circuit of breaking the valve body in the other end laminating valve body internal port department of iron core, and the inside of armature is provided with the oil circuit and is used for the outside of intercommunication iron core and the oil circuit between the valve body.

Description

Quantitative oil supply control device for rotating shuttle

Technical Field

The utility model relates to the technical field of precise oil supply of a rotating shuttle which is a core part of a lock type sewing machine, in particular to a quantitative oil supply control device of the rotating shuttle.

Background

The rotating shuttle is an important component part in a thread hooking mechanism of the sewing machine; when the sewing machine works, the rotating shuttle is in a high-speed running state, and the rotating shuttle is formed by combining an outer shuttle frame and an inner shuttle frame; when in sewing, the inner shuttle frame is in a static state relative to the outer shuttle frame, the outer shuttle frame rotates at a high speed along with the lower shaft, the inner shuttle frame and the outer shuttle frame are connected together through a guide rail, high-speed sliding friction occurs at the guide rail, and the rotating speed is up to ten thousand revolutions per minute; so the position of the rotating shuttle guide rail needs to be lubricated to ensure the normal operation of the rotating shuttle;

the existing rotating shuttle oil supply system is provided by an oil pump with a power source from a main shaft, and the structure can ensure the reliability of the oil pump but also brings partial limitation, and the power of the oil pump is bound with the main shaft of the machine; the most direct result is that the machine starts to work the oil pump to start to supply oil and the oil quantity is uncontrollable; a large number of use result feedback: the oil supply system can cause excessive oil supply quantity and difficult oil quantity adjustment, and cause redundant oil quantity at the rotating shuttle to pollute the fabric.

Chinese patent application No. 2022221480846 discloses a rotating shuttle ration oil supply controlling means, adopts a plurality of curved surface shapes according to the bumper of compressing tightly the post to take place the deformation of different degree respectively to all compress tightly the sealing ring, make the sealing ring keep away from the one end that compresses tightly the post and laminate more and compress tightly the bumper, and then improved sealed effect, but do not improve the mounted position, still have above-mentioned defect, the technical measure of prior art lack of solution.

With the increasing demands of users on clothing processing, the technical demands cannot be met by using the original oil supply system, and a solution is needed to be provided.

Disclosure of Invention

In view of the above, the present utility model aims to provide a quantitative oil supply control device for rotating shuttles, which can realize controllable and quantitative oil supply, and avoid excessive supply overflow and pollution to fabrics while satisfying lubrication.

The technical scheme adopted by the utility model is that in order to achieve the above purpose and other related purposes, the following technical scheme is provided:

the rotary shuttle quantitative oil supply control device comprises an oil pump, wherein the oil pump is communicated with an oil supply pipe II through an oil supply pipe I, and an electromagnetic valve is arranged between the oil supply pipe I and the oil supply pipe II; the electromagnetic valve is arranged on the outer side wall of the oil pan, the oil pump and the first oil supply pipe are arranged in the oil pan, the second oil supply pipe is used for supplying oil to lubricate the rotating shuttle moving part, and the rotating shuttle moving part stretches into the oil pan through the oil return pipe;

the solenoid valve includes valve body, coil, armature, iron core, spring, sealing washer, and the inside slidable of valve body sets up the iron core, and the outer wall of valve body sets up the coil, and the one end of iron core is contradicted by the spring, makes the sealed oil circuit of breaking the valve body in the other end laminating valve body internal port department of iron core, and the inside of armature is provided with the oil circuit and is used for the outside of intercommunication iron core and the oil circuit between the valve body.

The application provides a technical scheme still has following technical feature:

preferably, the coil is used for magnetizing the armature and the iron core when the coil is electrified, the armature and the iron core overcome the elastic force of the spring to be attracted, the magnetic force overcomes the elastic force of the spring to attract the armature and the iron core, and the contact surfaces of the valve body and the iron core are separated to lead the oil way to be conducted.

Preferably, the outer ends of the valve body and the armature are provided with interface grooves.

Preferably, the first oil supply pipe is communicated with the electromagnetic valve through the inner side wall of the oil pan.

Preferably, an annular cavity oil path is formed between the outer side of the iron core and the valve body.

Preferably, the contact surface A of the valve body is closely attached to the contact surface B of the iron core, and no sealing element exists between the contact surface A of the valve body and the contact surface B of the iron core.

Preferably, the contact surface A of the valve body is closely attached to the contact surface B of the iron core, and no rubber piece exists between the contact surface A of the valve body and the contact surface B of the iron core.

Preferably, the contact surface A of the valve body is tightly attached to the contact surface B of the iron core, and a rubber sealing gasket is arranged between the contact surface A of the valve body and the contact surface B of the iron core.

The utility model has the beneficial effects that:

according to the utility model, the electromagnetic valve is arranged between the first oil supply pipe and the second oil supply pipe, and is arranged on the outer side wall of the oil pan, so that the electromagnetic valve can be controlled, the structure of the electromagnetic valve is added at the joint of the first oil supply pipe and the second oil supply pipe, namely the oil pan, the installation and transformation have little influence on the original structure, the layout of other parts is not influenced, quantitative and controllable oil supply is realized for the rotating shuttle moving part through the structure, trace oil supply can be realized when the working pressure of the oil pump is overlarge, quantitative required oil supply lubrication is realized, and the fabric is effectively prevented from being polluted by oil;

overall, the structure of the present application is simple: the part quantity is small and the part comprises a part of standard components; the universality of the application is good: the integrated level is high, the suitability is good, and the device can be directly matched and installed on the conventional lockstitch sewing machine oil pan.

Drawings

FIG. 1 is a schematic diagram of a rotary shuttle oil supply system in which a rotary shuttle quantitative oil supply control device of the present utility model is located;

FIG. 2 is an assembly schematic diagram of a rotary shuttle quantitative oil supply control device according to the present utility model;

FIG. 3 is an overall sectional view of an assembled rotary shuttle quantitative oil supply control device according to the present utility model;

FIG. 4 is an overall sectional view of an assembled rotary shuttle quantitative oil supply control device according to the present utility model;

FIG. 5 is a view of a conduction oil path of a rotary shuttle quantitative oil supply control device according to the present utility model;

in the figure:

1. oil pump

2. Oil supply pipe I

3. Electromagnetic valve

31. Valve body

32. Coil

33. Armature iron

34. Iron core

35. Spring

36. Sealing ring

4. Oil supply pipe II

5. Oil return pipe

6. Oil pan

7. Valve body contact surface A

8. Iron core contact surface B

9. Armature and core attraction

10. Direction of oil feeding

11. And (5) oil outlet direction.

Detailed Description

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present utility model and are not intended to be limiting.

In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

1-5, a rotary shuttle quantitative oil supply control device comprises an oil pump 1, wherein the oil pump 1 is communicated with an oil supply pipe II 4 through an oil supply pipe I2, and an electromagnetic valve 3 is arranged between the oil supply pipe I2 and the oil supply pipe II 4; the electromagnetic valve 3 is arranged on the outer side wall of the oil pan 6, the oil pump 1 and the oil supply pipe I2 are arranged in the oil pan 6, the oil supply pipe II 4 is used for supplying oil to lubricate the rotating shuttle motion part, and the rotating shuttle motion part extends into the oil pan 6 through the oil return pipe 5;

the electromagnetic valve 3 comprises a valve body 31, a coil 32, an armature 33, an iron core 34, a spring 35 and a sealing ring 36, wherein the iron core 34 is slidably arranged in the valve body 31, the coil 32 is arranged on the outer wall of the valve body 31, one end of the iron core 34 is abutted against the spring 35, the other end of the iron core 34 is attached to the inner end of the valve body 31 to seal and disconnect an oil way of the valve body 31, and the oil way used for communicating the outer side of the iron core 34 and the oil way between the valve bodies 31 is arranged in the armature 33.

Specifically, the working principle of the application is as follows: the coil 32 is used for magnetizing the armature 33 and the iron core 34 when being electrified, the armature 33 and the iron core 34 are attracted against the elastic force of the spring 35, the magnetic force overcomes the elastic force of the spring 35 to attract the armature 33 and the iron core 34, and the contact surfaces of the valve body 31 and the iron core 34 are separated to lead the oil way to be conducted; the outer ends of the valve body 31 and the armature 33 are provided with interface grooves; the first oil supply pipe 2 passes through the inner side wall of the oil pan 6 and is communicated with the electromagnetic valve 3; an annular cavity oil path is formed between the outer side of the iron core 34 and the valve body 31;

specifically, the contact surface a of the valve body 31 and the contact surface B of the iron core 34 are tightly attached, and no sealing element exists between the contact surface a and the contact surface B; the sealing structure design can be made on the valve body contact surface A and the iron core contact surface B to the traditional on-off electromagnetic valve, liquid or gas leakage is prevented, the sealing structure can be canceled, the traditional rubber piece sealing structure is replaced by two processing surfaces with good surface roughness and flatness, and the sealing requirement is met between the valve body contact surface A and the iron core contact surface B through the processing surfaces.

Specifically, the contact surface a of the valve body 31 and the contact surface B of the iron core 34 are tightly attached, and no rubber member exists between the two; similarly, the sealing element is omitted, and a rubber element is not needed; the structure can generate trace oil drainage under the condition that the oil pump generates larger oil pressure, and can achieve the effect of supplying trace oil to the rotating shuttle. The effect can not only meet the lubrication of the rotating shuttle, but also meet the use of customers with extremely high oil pollution requirements.

Specifically, the contact surface a of the valve body 31 and the contact surface B of the iron core 34 are tightly attached, a rubber gasket is arranged between the contact surface a and the contact surface B, and the added rubber gasket is used for completely cutting off lubricating oil and adapting to the needs of special users.

In general, an electromagnetic valve is added into the original oil supply system to form a rotating shuttle oil supply system: the oil pump 1 arranged in the oil pan 6 is connected to one side end of the side wall of the oil pan 6 through the first oil supply pipe 2, the other side end of the side wall of the oil pan 6 is connected to the second oil supply pipe 4 through the electromagnetic valve 3, the second oil supply pipe 4 is connected to the rotating shuttle motion member, and the rotating shuttle motion member passes through the side wall of the oil pan 6 through the oil return pipe 5;

the electromagnetic valve mainly applies an electromagnetic principle, an electromagnetic valve is shown as an oil inlet direction 10 and an oil outlet direction 11 in fig. 5, when a coil 32 of the electromagnetic valve 3 is electrified, an armature 33 and an iron core 34 are magnetized, and the magnetic force overcomes the elastic force of a spring 35 to enable the armature 33 and the iron core 34 to be attracted; as shown in fig. 5, the armature and core actuation 9 is illustrated; the contact surface A of the valve body 31 and the contact surface B of the iron core 34 are separated to be communicated with an internal oil circuit; lubricating oil enters from an oil inlet of the armature 33, is guided to a structural cavity of the iron core 34 and the valve body 31 through an oil path in the iron core 34, and then reaches a contact surface A of the valve body 31 and a contact surface B of the iron core 34 through the cavity, and after the armature and the iron core are magnetized, the armature pulls away the contact surface A7 of the valve body and the contact surface B8 of the iron core, so that the lubricating oil can be smoothly sprayed out from an oil outlet of the valve body to a rotating shuttle position through cavities at the two contact positions. After the power is off, the armature 33 and the iron core 34 are demagnetized, the spring presses the iron core 33 to be attached to the valve body 31, so that the contact surface A of the valve body 31 is tightly attached to the contact surface B of the iron core 34, and the oil way of the rotating shuttle is cut off;

of course, the oil supply device can be combined with other innovations, such as a structure for realizing accurate oil supply for the rotating shuttle in a mode of on-off of an oil supply end, such as a direct external oil pump.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.

Claims

1. The rotary shuttle quantitative oil supply control device is characterized by comprising an oil pump (1), wherein the oil pump (1) is communicated with an oil supply pipe II (4) through an oil supply pipe I (2), and an electromagnetic valve (3) is arranged between the oil supply pipe I (2) and the oil supply pipe II (4); the electromagnetic valve (3) is arranged on the outer side wall of the oil pan (6), the oil pump (1) and the first oil supply pipe (2) are arranged in the oil pan (6), the second oil supply pipe (4) is used for supplying oil to input a lubricating rotating shuttle motion part, and the rotating shuttle motion part extends into the oil pan (6) through the oil return pipe (5)

A section;

the electromagnetic valve (3) comprises a valve body (31), a coil (32), an armature (33), an iron core (34), a spring (35) and a sealing ring (36), wherein the iron core (34) is arranged in the valve body (31) in a sliding mode, the coil (32) is arranged on the outer wall of the valve body (31), one end of the iron core (34) is abutted against the spring (35), the other end of the iron core (34) is attached to the inner end of the valve body (31) to seal and disconnect an oil way of the valve body (31), and the oil way is arranged in the armature (33) and used for communicating the outer side of the iron core (34) and the oil way between the valve body (31).

2. The rotary shuttle quantitative oil supply control device according to claim 1, wherein the coil (32) is used for magnetizing the armature (33) and the iron core (34) when the coil is electrified, the armature (33) and the iron core (34) are attracted against the elastic force of the spring (35), and the contact surfaces of the valve body (31) and the iron core (34) are separated to lead the oil path to be conducted.

3. A rotary shuttle quantitative oil supply control device as claimed in claim 1, characterized in that the outer ends of the valve body (31) and the armature (33) are provided with interface grooves.

4. A rotary shuttle dosing control apparatus according to claim 1, wherein the first oil supply pipe (2) is connected to the solenoid valve (3) through the inner side wall of the oil pan (6).

5. A rotary shuttle dosing control apparatus according to claim 1, characterized in that an annular chamber oil passage is formed between the outside of the core (34) and the valve body (31).

6. A rotary shuttle dosing control apparatus according to claim 1, wherein the contact surface a of the valve body (31) and the contact surface B of the core (34) are in close contact with each other without a seal therebetween.

7. A rotary shuttle dosing oil supply control apparatus as claimed in claim 1, wherein the contact surface a of the valve body (31) and the contact surface B of the iron core (34) are closely adhered without rubber therebetween.

8. A rotary shuttle quantitative oil supply control device as claimed in claim 1, characterized in that the contact surface a of the valve body (31) and the contact surface B of the iron core (34) are closely attached, and a rubber sealing gasket is arranged between the contact surface a and the contact surface B.