CN115404602A - Oil supply mechanism for sewing machine - Google Patents
Oil supply mechanism for sewing machine Download PDFInfo
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- CN115404602A CN115404602A CN202210992312.XA CN202210992312A CN115404602A CN 115404602 A CN115404602 A CN 115404602A CN 202210992312 A CN202210992312 A CN 202210992312A CN 115404602 A CN115404602 A CN 115404602A
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- oil
- pump body
- oil outlet
- supply mechanism
- outlet pipeline
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B71/00—Lubricating or cooling devices
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- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The utility model relates to the technical field of sewing machines, in particular to an oil supply mechanism for a sewing machine, which solves the problem that the oil supply mechanism in the prior art can not supply oil to a needle and/or a rotating rod in a fixed time and a fixed quantity, and the oil supply mechanism for the needle rod of the sewing machine comprises an electromagnetic valve and a pump body, wherein the electromagnetic valve is connected with the oil supply mechanism, the air supply mechanism is used for supplying air to the pump body, the air flows to the pump body through the electromagnetic valve, the pump body comprises a pump cavity, the pump cavity is connected with an oil outlet pipeline, lubricating oil is filled in the pump cavity, the pump cavity supplies oil to the needle rod and/or the rotating rod through the oil outlet pipeline, a piston is arranged in the pump cavity, and the piston can downwards move for a corresponding distance according to the air supply quantity in the pump body; the electromagnetic valve is connected with a control element, and the control element is used for controlling the air supply amount and the air supply time of the electromagnetic valve to the pump body.
Description
Technical Field
The present disclosure relates to sewing machines, and more particularly, to an oil supply mechanism for a sewing machine.
Background
The sewing machine manufacturing industry has been a traditional industry for over a hundred and fifty years, 1845 that american people invented the first sewing machine. In china, the seventies, sewing machines, which are machines that use one or more sewing threads to form one or more tracks in a material to be sewn, to interlace or sew one or more layers of the material. The sewing machine can sew fabrics such as cotton, hemp, silk, wool, artificial fiber and the like and products such as leather, plastic, paper and the like, and the sewed stitches are neat, beautiful, flat and firm, the sewing speed is high, and the use is simple and convenient. The China sewing machine industry is growing at an astonishing speed, china has become the first producing nation with the world in output, and at present, a plurality of places have been opened in China to enable sewing machines to enter the sight of people again from one corner of the society.
The general sewing machine is composed of four parts of a machine head, a machine base, a transmission part and an accessory, wherein the machine head is the main part of the sewing machine and is composed of four mechanisms of material needling, thread hooking, thread picking and feeding and auxiliary mechanisms of winding, material pressing, tooth dropping and the like, the motion of each mechanism is reasonably matched and works circularly to sew up the materials; the machine base is divided into two forms of a bedplate and a machine case, the bedplate of the bedplate type machine base plays a role of supporting the machine head, and the machine case of the machine case type machine base plays a role of supporting and storing the machine head, so that the sewing machine is convenient to carry and store; the transmission part of the sewing machine consists of a frame, a hand crank or a motor and the like, wherein the frame is a support of the machine and supports a bedplate and a pedal; the accessories of the sewing machine comprise a machine needle, a bobbin, a screwdriver, an oil pot and the like.
The sewing machine generally has a cutter for cutting cloth, the cutter is arranged on a rotating rod, and the rotating rod moves up and down or moves circumferentially under the driving of a driving mechanism and a connecting rod mechanism to cut the cloth. The outside cover of dwang is equipped with the axle sleeve usually, and the axle sleeve is motionless during dwang up-and-down motion or circumferential motion, and the relative axle sleeve of dwang moves about, because the dwang needs frequent upper and lower, circumferential motion at work, consequently need regularly to dwang and axle sleeve within a definite time between the oil feed, makes the relative motion of the two become easier, increases the degree of lubrication between the two. However, the oil supply amount and the oil supply time of the oil supply mechanism in the prior art are often not well controlled, and the oil cannot be regularly and quantitatively supplied to the rotating rod and the shaft sleeve room, so that the relative movement of the rotating rod and the shaft sleeve is caused.
The sewing machine needle is also called sewing needle and sewing needle, it is an important component accessory of sewing machine, in the course of sewing, in order to achieve the ideal matching of sewing machine needle with sewing material and sewing thread, it must select proper sewing machine needle, the sewing machine needle is set in the needle bar, the needle bar is set on the fixing sleeve, the needle bar drives the sewing machine needle to make up-and-down reciprocating motion when in use, this needs to add lubricating oil between the needle bar and the fixing sleeve frequently, make the up-and-down operation of the needle bar smoother, avoid the situation of rusting and blocking, however, the oil supply quantity and oil supply time of the oil supply mechanism in the prior art can not be controlled well, and can not supply oil to the sewing machine needle regularly and quantitatively. When the oil supply to the needle rod is too large, the oil can flow downwards along the needle rod or the machine needle and further flow onto a workpiece to pollute the workpiece; the amount of oil supplied to the needle bar is too small, and the needle bar is rusted, stuck, and makes a noise when moving up and down. Therefore, it is highly desirable to develop an oil supply mechanism for supplying oil to a sewing machine.
Disclosure of Invention
The oil supply mechanism for the sewing machine is simple in structure and can supply oil to a needle rod and/or a rotating rod of the sewing machine in a timed and quantitative mode, and therefore the operation of an upper assembly of the sewing machine is smoother.
The technical scheme adopted by the disclosure for solving the technical problems is as follows: the utility model provides an oil feeding mechanism for sewing machine, includes the solenoid valve and the pump body, the solenoid valve is connected with air feed mechanism, air feed mechanism is used for the pump body air feed, and gas flows to the pump body through the solenoid valve, the pump body includes the pump chamber, the pump chamber is connected with oil outlet pipeline, be equipped with lubricating oil in the pump chamber, the pump chamber passes through oil outlet pipeline to needle bar and/or dwang fuel feeding, be provided with the piston in the pump chamber, the piston can be according to the solenoid valve to the corresponding distance of air feed volume downstream in the pump body; the electromagnetic valve is connected with a control element, and the control element is used for controlling the air supply amount and the air supply time of the electromagnetic valve to the pump body.
Compared with the existing products, the beneficial effects of the present disclosure are: the electromagnetic valve is connected with the control element and the pump body, the control element can control the air supply amount and the air supply time of the electromagnetic valve to the pump body, and the piston in the pump cavity can move downwards for a corresponding distance according to the air supply amount of the electromagnetic valve to the pump body, so that the oil supply of the pump body to the needle rod and/or the rotating rod of the sewing machine at regular time and quantity is realized, and the adverse effect caused by too much or too little oil supply amount of the pump body to the needle rod and/or the rotating rod is avoided.
Furthermore, the electromagnetic valve and the pump body are connected with a first pipeline, and the electromagnetic valve supplies air to the pump body through the first pipeline.
Further, the solenoid valve includes at least one first gas outlet, the pump body is provided with first air inlet, first gas outlet is connected to the one end of first pipeline, first air inlet is connected to the other end of first pipeline.
Further, lubricating oil sets up the below of piston, works as the solenoid valve to the pump body supplies the gas of predetermined amount, gaseous promotion the piston lapse, the lubricating oil in the pump chamber receives the extrusion of piston, lubricating oil flow to needle bar and/or dwang through going out oil pipe way, the oil mass that flows to needle bar and/or dwang is corresponding with the gas volume that gets into in the pump body.
Furthermore, the outside of the needle rod is sleeved with a fixed sleeve, the needle rod moves up and down in the fixed sleeve during working, a first liquid inlet hole is formed in the fixed sleeve, and lubricating oil in the oil outlet pipeline flows to the needle rod through the first liquid inlet hole.
Furthermore, a first liquid inlet channel is arranged between the needle rod and the fixed sleeve, the position of the first liquid inlet channel corresponds to that of the first liquid inlet hole, and lubricating oil entering from the first liquid inlet hole flows into the first liquid inlet channel.
Furthermore, the oil outlet pipeline comprises a first oil outlet pipeline, the pump body is provided with an oil inlet/outlet, the first oil outlet pipeline is connected with the oil inlet/outlet, the other end of the first oil outlet pipeline can be connected with a first three-way valve, and the first three-way valve can be connected with a second oil outlet pipeline and a third oil outlet pipeline.
Furthermore, the outside cover of dwang is equipped with the axle sleeve, dwang during operation is upper and lower or circumferential motion in the axle sleeve, be constructed with second feed liquor hole on the axle sleeve, the lubricating oil of play oil pipe way passes through second feed liquor hole flow direction dwang.
Further, the dwang with be provided with the second inlet channel between the axle sleeve, the position of second inlet channel with the second feed liquor hole is corresponding, by the lubricating oil that the second feed liquor hole got into flows into the second inlet channel.
In some embodiments, the second oil outlet pipeline and the third oil outlet pipeline supply oil to different positions of the needle rods, and the arrangement enables the pump body to supply oil to different positions of the needle rods at the same time, so that the oil supply is more efficient.
In some embodiments, the second oil outlet pipeline and the third oil outlet pipeline supply oil to different positions of the rotating rod, and the arrangement can enable the pump body to supply oil to different positions of the rotating rod at the same time.
In some embodiments, one of the second oil outlet pipeline and the third oil outlet pipeline supplies oil to the needle rod, the other is connected with a second three-way valve, the second three-way valve is further connected with a fourth oil outlet pipeline and a fifth oil outlet pipeline, one of the fourth oil outlet pipeline and the fifth oil outlet pipeline supplies oil to the rotating rod, the other of the fourth oil outlet pipeline and the fifth oil outlet pipeline supplies oil to the needle rod, or both the fourth oil outlet pipeline and the fifth oil outlet pipeline supply oil to the rotating rod.
Further, the oil inlet/outlet can be connected with an oil supply part, and the oil supply part is used for supplying oil to the pump body.
Furthermore, an air inlet pipeline is arranged between the air supply mechanism and the electromagnetic valve, and air of the air supply mechanism flows to the electromagnetic valve through the air inlet pipeline and then flows to the pump cavity through the first pipeline.
Further, the control unit may be programmed to control the amount and time of air supplied to the pump body by the solenoid valve.
Furthermore, the lower end of the needle rod is provided with a mounting hole, and the mounting hole is used for mounting a needle head.
Drawings
The present application will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of illustrating the preferred embodiments and should not be taken as limiting the scope of the present application. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.
FIG. 1 is one of the schematic structural views of an oil supply mechanism for a sewing machine according to the present disclosure mounted on a head;
FIG. 2 is one of cross-sectional views showing an oil supplying mechanism for a sewing machine according to the present disclosure mounted on a head;
FIG. 3 is an enlarged view of a portion of the disclosure at FIG. 2A;
FIG. 4 is an enlarged view of a portion of the disclosure at FIG. 2B;
FIG. 5 is a schematic structural view of the pump body and needle bar connection of the present disclosure;
FIG. 6 is a schematic structural view of the needle shaft and hub of the present disclosure;
FIG. 7 is a schematic structural view of the pump body of the present disclosure;
FIG. 8 is a second schematic view of the oil supply mechanism of the present disclosure mounted to the head;
FIG. 9 is a second cross-sectional view of the oil supply mechanism for a sewing machine of the present disclosure mounted on the head;
FIG. 10 is an enlarged view of a portion of the disclosure at FIG. 9C;
FIG. 11 is a third schematic view of a sewing machine oil supply mechanism of the present disclosure mounted to a head;
fig. 12 is a partial enlarged view of the disclosure at fig. 11D.
Description of reference numerals:
1. an electromagnetic valve; 2. a first pipeline; 3. a needle bar; 4. fixing a sleeve; 5. a pump body; 6. a first liquid inlet channel; 7. a first liquid inlet hole; 8. a first oil outlet pipeline; 9. a second oil outlet pipeline; 10. a third oil outlet pipeline; 11. a first air inlet; 12. an oil inlet/outlet; 13. rotating the rod; 14. a shaft sleeve; 15. a fourth oil outlet pipeline; 16. a fifth oil outlet pipeline; 17. a second three-way valve; 18. a first three-way valve; 19. a second liquid inlet channel; 20. a second liquid inlet hole.
Detailed Description
In order to make the technical solutions of the present disclosure better understood by those skilled in the art, the present disclosure will be described in detail, clearly and completely with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the disclosure and are not intended to limit the disclosure.
In the description of the present invention, if there are first and second descriptions for distinguishing technical features, they are not interpreted as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, the above terms should not be construed as limiting the present invention.
The cut-off knife of the sewing machine is arranged on the rotating rod, and the rotating rod moves up and down or moves circumferentially under the driving of the driving mechanism and the connecting rod mechanism to cut cloth. The outside cover of dwang is equipped with the axle sleeve usually, and the axle sleeve is motionless during dwang up-and-down motion or circumferential motion, and the relative axle sleeve of dwang moves about, because the dwang needs frequent upper and lower, circumferential motion at work, consequently needs the oil feed to dwang and axle sleeve room at regular time and quantity, makes the relative motion of the two become easier, increases the degree of lubrication between the two.
When a sewing machine is used for sewing cloth, a machine needle reciprocates up and down, the machine needle is arranged in a needle rod, the needle rod is arranged on a fixed sleeve of the sewing machine, when the cloth is sewn, the machine needle and the needle rod are relatively fixed, the needle rod reciprocates up and down in the fixed sleeve, in order to enable the needle rod to move up and down relative to the fixed sleeve more smoothly, lubricating oil is often required to be added between the needle rod and the fixed sleeve, the adding time and adding amount of the lubricating oil are strictly controlled, the adding time is too much or the time interval is too short, the lubricating oil is likely to drop on the cloth being processed, the adding time of the lubricating oil is too little or the interval time is too long, the needle rod is likely to be blocked during the up and down movement relative to the fixed sleeve, or squeak noise is generated due to too large friction force, therefore, the invention discloses an oil supply mechanism for the sewing machine, which is used for supplying oil to the needle rod and/or a rotating rod, and please refer to fig. 1-12.
The utility model provides an oil feeding mechanism for sewing machine, includes solenoid valve 1 and the pump body 5, solenoid valve 1 and the pump body 5 is installed on sewing machine's aircraft nose, and solenoid valve 1 is connected with the air feed mechanism that is used for the air feed of the pump body 5, is provided with the air inlet pipeline between air feed mechanism and the solenoid valve 1, and air feed mechanism's gas flows to solenoid valve 1 through the air inlet pipeline, is connected with first pipeline 2 between solenoid valve 1 and the pump body 5, and solenoid valve 1 supplies gas to the pump body 5 through first pipeline 2. The pump body 5 includes the pump chamber, and the pump chamber is connected with oil outlet pipeline, is equipped with lubricating oil in the pump chamber, and the pump chamber passes through oil outlet pipeline to the oil supply of needle bar 3 and/or dwang 13, is provided with the piston in the pump chamber, and lubricating oil setting is in the below of piston, and the piston can be according to the corresponding distance of air feed volume downstream in the solenoid valve 1 to the pump body 5, and the lubricating oil in the pump chamber receives the extrusion of piston, lubricating oil flow direction needle bar 3 and/or dwang 13 through oil outlet pipeline, and the oil mass that flows to needle bar 3 and/or dwang 13 is corresponding with the gas volume that gets into in the pump body 5 to this realizes the pump body 5 to the oil feed of needle bar 3 and/or dwang 13 ration regularly, avoids the pump body 5 to the too much or the harmful effects that the too little caused of the oil feed volume of needle bar 3 and/or dwang 13.
In some embodiments, the solenoid valve 1 is provided with a first air outlet, the pump body 5 is provided with a first air inlet 11, one end of the first pipeline 2 is connected with the first air outlet, and the other end of the first pipeline 2 is connected with the first air inlet 11.
In some embodiments, the electromagnetic valve 1 is provided with two first air outlets, the pump body 5 is provided with a first air inlet 11, the two air outlets are respectively connected with a connecting pipeline, the two connecting pipelines are connected with a third three-way valve, and another valve port of the third three-way valve is connected with the first air inlet.
It will be appreciated that the above two embodiments are only set by simply enumerating the number of the first air outlets, and the number of the first air outlets can be selected according to the situation, and is not limited specifically here.
In some embodiments, the outside of the shank 3 is fitted with a fixing sleeve 4, a first inlet opening 7 being formed in one fixing sleeve 4.
In some embodiments, the needle bar 3 is externally engaged by a fixing sleeve 4, one fixing sleeve 4 being provided with a plurality of first access holes 7, which allow to lubricate a plurality of positions of the needle bar 3 simultaneously.
In some embodiments, the plurality of housings 4 are externally engaged by the shank 3, each housing 4 being configured with a first inlet orifice 7, so that the shank 3 is better retained in the housing 4 while the plurality of positions of the shank 3 are lubricated simultaneously.
It can be appreciated that the above three embodiments are only set by simply listing the number of the fixing sleeve 4 and the first liquid inlet hole 7 on the fixing sleeve 4, and the number of the first liquid inlet hole can be selected according to actual requirements, and is not particularly limited herein.
The oil outlet pipeline comprises a first oil outlet pipeline 8, an oil inlet/outlet 12 is formed in the pump body 5, the first oil outlet pipeline 8 is connected with the oil inlet/outlet 12, the other end of the first oil outlet pipeline 8 can be connected with a first three-way valve 18, the first three-way valve 18 can be connected with a second oil outlet pipeline 9 and a third oil outlet pipeline 10, the first oil outlet pipeline 8 is connected with the second oil outlet pipeline 9 and the third oil outlet pipeline 10 through the three-way valve, the second oil outlet pipeline 9 and the third oil outlet pipeline 10 can simultaneously supply oil to different first liquid inlet holes 7, the pump body 5 can simultaneously supply oil to different positions of the needle rods 3 through the arrangement, the needle rods 3 can be supplied with oil more efficiently and in an all-directional manner, and adverse effects caused by overlarge friction force between the needle rods 3 and the fixed sleeve 4 can be effectively avoided.
The outside cover of dwang 13 is equipped with axle sleeve 14, and the dwang 13 during operation is upper and lower or circumferential motion in axle sleeve 14, is constructed at least one second feed liquor hole 20 on the axle sleeve 14, and the lubricating oil of oil outlet pipeline flows to dwang 13 through second feed liquor hole 20. Be provided with second inlet channel 19 between dwang 13 and the axle sleeve 14, second inlet channel 19 is the second annular groove that the interior perisporium of axle sleeve 14 was seted up, second inlet channel 19's position and second feed liquor hole 20 are corresponding, the lubricating oil that gets into by second feed liquor hole 20 flows into second inlet channel 19 and plays lubricated effect, as preferred, second annular groove's highly is greater than the diameter in second feed liquor hole 20, can make lubricating oil have bigger lubricated area like this, it is better to lubricate the effect, and can not cause lubricating oil to overflow.
In some embodiments, one of the second oil outlet pipeline 9 and the third oil outlet pipeline 10 supplies oil to the needle bar 3, the other is connected with a second three-way valve 17, the second three-way valve 17 is further connected with a fourth oil outlet pipeline 15 and a fifth oil outlet pipeline 16, one of the fourth oil outlet pipeline 15 and the fifth oil outlet pipeline 16 supplies oil to the rotating rod 13, and the other supplies oil to the needle bar 3, or both the fourth oil outlet pipeline 15 and the fifth oil outlet pipeline 16 supply oil to the rotating rod 13, such an arrangement can supply oil to different positions of the needle bar 3 and/or the rotating rod 13 at the same time, and when the different positions of the rotating rod 13 and/or the needle bar 3 need lubrication, the present embodiment can be selected.
In some embodiments, one of the second oil outlet pipe 9 and the third oil outlet pipe 10 supplies oil to the needle bar 3, and the other supplies oil to the rotating rod 13, so that oil can be supplied to the needle bar 3 and the rotating rod 13 at the same time, and in this embodiment, oil can be supplied to only one position of the needle bar 3 and the rotating rod 13 at the same time.
In some embodiments, the second oil outlet pipe 9 and the third oil outlet pipe 10 supply oil to different second liquid inlet holes 20 at the same time, and when the oil supply of the needle rods 3 is not needed, the present embodiment can be selected to supply oil only to the rotating rod 13.
It should be understood that the above embodiments only illustrate the oil supply manner of the oil outlet pipeline to the needle bar 3 and/or the rotating rod 13, which may be selected according to actual needs and is not limited herein.
It should be noted that the oil inlet/outlet port 12 may be connected to an oil supply member for supplying oil to the pump body 5, and as the lubricating oil in the pump chamber is consumed, the lubricating oil in the pump chamber is less and less, and at this time, the oil inlet/outlet port 12 and the oil supply member need to be connected to supply oil to the pump body 5.
It is understood that the solenoid valve 1 in the above embodiment is connected with a control element, and the control element can be programmed to control the air supply amount and the air supply time of the solenoid valve 1 to the pump body 5.
The present application has been described in detail above, and specific examples thereof are used herein to explain the principles and implementations of the present application, which are presented solely to aid in understanding the present application and its core concepts. It should be noted that, for those skilled in the art, without departing from the principle of the present application, the present application can also make several improvements and modifications, and those improvements and modifications also fall into the protection scope of the claims of the present application.
Claims (14)
1. The utility model provides an oil feeding mechanism for sewing machine, characterized in that, includes solenoid valve (1) and pump body (5), solenoid valve (1) is connected with air feed mechanism, air feed mechanism is used for pump body (5) air feed, gas flow direction through solenoid valve (1) the pump body (5), pump body (5) are including the pump chamber, the pump chamber is connected with oil outlet pipeline, be equipped with lubricating oil in the pump chamber, the pump chamber passes through oil outlet pipeline to needle bar (3) and/or dwang (13) oil feed, be provided with the piston in the pump chamber, the piston can be according to solenoid valve (1) to corresponding distance is moved downwards to the air feed volume in the pump body (5); the electromagnetic valve (1) is connected with a control element, and the control element is used for controlling the air supply amount and the air supply time of the electromagnetic valve (1) to the pump body (5).
2. Oil supply mechanism for sewing machines according to claim 1, characterized in that a first duct (2) is connected to the solenoid valve (1) and to the pump body (5), the solenoid valve (1) supplying the pump body (5) with air through the first duct (2).
3. Oil supply mechanism for sewing machines according to claim 2, characterized in that said solenoid valve (1) comprises at least a first outlet port, said pump body (5) is provided with a first inlet port (11), one end of said first duct (2) is connected to said first outlet port, the other end of said first duct (2) is connected to said first inlet port (11).
4. The oil supply mechanism according to claim 1, wherein the lubricant is disposed below the piston, when the solenoid valve (1) supplies a predetermined amount of gas to the pump body (5), the gas pushes the piston to slide downward, the lubricant in the pump cavity is pressed by the piston, the lubricant flows to the needle rod (3) and/or the rotating rod (13) through the oil outlet pipeline, and the amount of oil flowing to the needle rod (3) and/or the rotating rod (13) corresponds to the amount of gas entering the pump body (5).
5. Oil feeding mechanism for sewing machines according to claim 1, characterized in that the fixing sleeve (4) is sleeved outside the needle bar (3), the needle bar (3) moves up and down in the fixing sleeve (4) during operation, the fixing sleeve (4) is configured with a first inlet hole (7), and the lubricating oil of the oil outlet pipeline flows to the needle bar (3) through the first inlet hole (7).
6. Oil feeding mechanism for sewing machines according to claim 5, characterized in that a first inlet channel (6) is provided between the needle bar (3) and the fixed sleeve (4), the position of said first inlet channel (6) corresponds to the position of said first inlet hole (7), the lubricating oil entering from said first inlet hole (7) flows into said first inlet channel (6).
7. The oil supply mechanism for the sewing machine according to claim 1, wherein the oil outlet pipeline comprises a first oil outlet pipeline (8), the pump body (5) is provided with an oil inlet/outlet (12), the first oil outlet pipeline (8) is connected with the oil inlet/outlet (12), the other end of the first oil outlet pipeline (8) can be connected with a first three-way valve (18), and the first three-way valve (18) can be connected with a second oil outlet pipeline (9) and a third oil outlet pipeline (10).
8. The oil supply mechanism for the sewing machine according to claim 1, wherein a shaft sleeve (14) is sleeved outside the rotating rod (13), the rotating rod (13) moves up and down or circumferentially in the shaft sleeve (14) when working, a second liquid inlet hole (20) is configured on the shaft sleeve (14), and the lubricating oil of the oil outlet pipeline flows to the rotating rod (13) through the second liquid inlet hole (20).
9. An oil supply mechanism for a sewing machine according to claim 8, wherein a second liquid inlet passage (19) is provided between the rotating rod (13) and the shaft sleeve (14), the position of the second liquid inlet passage (19) corresponds to the second liquid inlet hole (20), and the lubricating oil entering from the second liquid inlet hole (20) flows into the second liquid inlet passage (19).
10. Oil supply mechanism for a sewing machine according to claim 7, characterized in that the second oil outlet duct (9) and the third oil outlet duct (10) supply oil to different positions of the needle bar (3).
11. The oil supply mechanism for the sewing machine according to claim 7, wherein one of the second oil outlet line (9) and the third oil outlet line (10) supplies oil to the needle bar (3), the other one is connected with a second three-way valve (17), the second three-way valve (17) is further connected with a fourth oil outlet line (15) and a fifth oil outlet line (16), one of the fourth oil outlet line (15) and the fifth oil outlet line (16) supplies oil to the rotating lever (13), the other one supplies oil to the needle bar (3), or both the fourth oil outlet line (15) and the fifth oil outlet line (16) supply oil to the rotating lever (13).
12. Oil supply mechanism for sewing machines according to claim 7, characterized in that said oil inlet/outlet (12) can be connected to an oil supply for supplying oil to said pump body (5).
13. Oil supply mechanism for sewing machine according to claim 2, characterized in that an air inlet line is provided between the air supply mechanism and the solenoid valve (1), through which the air of the air supply mechanism flows towards the solenoid valve (1) and then towards the pump chamber through the first line (2).
14. An oil supply mechanism for a sewing machine according to claim 1, characterized in that said control unit can be programmed to control the amount and duration of air supply of said solenoid valve (1) to said pump body (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210992312.XA CN115404602A (en) | 2022-08-18 | 2022-08-18 | Oil supply mechanism for sewing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210992312.XA CN115404602A (en) | 2022-08-18 | 2022-08-18 | Oil supply mechanism for sewing machine |
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| CN115404602A true CN115404602A (en) | 2022-11-29 |
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| CN202210992312.XA Pending CN115404602A (en) | 2022-08-18 | 2022-08-18 | Oil supply mechanism for sewing machine |
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| CN107641913A (en) * | 2016-07-20 | 2018-01-30 | 杜尔克普—阿德勒股份公司 | Feeding lubricating device for sewing machine |
| CN110005480A (en) * | 2019-04-02 | 2019-07-12 | 中国北方发动机研究所(天津) | A kind of TC bearings body structure |
| CN111853511A (en) * | 2020-09-01 | 2020-10-30 | 桐乡市永大机械有限公司 | Pneumatic oil ejector |
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