CN113201869A - Contact type sewing thread automatic balanced oiling method and oiling device thereof - Google Patents
Contact type sewing thread automatic balanced oiling method and oiling device thereof Download PDFInfo
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- CN113201869A CN113201869A CN202110557017.7A CN202110557017A CN113201869A CN 113201869 A CN113201869 A CN 113201869A CN 202110557017 A CN202110557017 A CN 202110557017A CN 113201869 A CN113201869 A CN 113201869A
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- oiling
- sewing thread
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B67/00—Devices incorporated in sewing machines for lubricating, waxing, or colouring the threads
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Abstract
The invention discloses a contact type sewing thread automatic balanced oiling method and an oiling device thereof, belonging to the technical field of sewing thread manufacturing. It mainly includes the oiling pond, is equipped with into oil pipe and goes out oil pipe on the oiling pond, still includes photoelectric detection device and central processing unit, and photoelectric detection device is connected with the central processing unit electricity, and oiling pond upper portion is equipped with the roller that oils, and in oiling roller 1/4 periphery immerged the fluid in the oiling pond, oiling pond both sides below was equipped with wire wheel I and wire wheel II respectively, and the roller that oils is connected with servo motor's output, and servo motor passes through servo controller and is connected with central processing unit. The invention ensures that the contact length of the sewing thread and the surface of the oiling roller is unchanged, and the rotating speed of the oiling roller can dynamically change along with the change of the diameter of the sewing thread, thereby ensuring that the oiling rate of the sewing thread is more stable. The oiling device is mainly used for oiling sewing threads.
Description
Technical Field
The invention belongs to the technical field of sewing thread manufacturing, and particularly relates to a contact type sewing thread automatic balanced oiling method and an oiling device thereof.
Background
During sewing, the sewing thread passes through a thread guide and a needle eye of the sewing machine at high speed, and uniform stitches are formed on the cloth surface. The instant temperature of the needle of the sewing machine can reach 400-500 ℃ when the needle is used, meanwhile, most of raw materials of the sewing thread are terylene, and the terylene has poor heat resistance, so that the sewing thread is easy to melt at high temperature, the strength of the sewing thread is reduced, and the sewing thread is easy to break when the sewing thread is used. To improve the above phenomenon, a silicone oil is generally attached to the surface of the sewing thread to reduce the friction coefficient of the sewing thread when contacting the needle, and to form a thermal barrier to improve the heat resistance of the sewing thread.
At present, the common method for applying silicone oil to sewing threads is a contact method, and the technological process is that the sewing threads are contacted with the surface of an oiling roller, the oiling roller is partially immersed in oil, when the oiling roller rotates, a layer of oil is adhered to the surface of the oiling roller, and when the sewing threads are dragged across the surface of the oiling roller, the silicone oil is transferred to the surface of the sewing threads. The existing contact method for applying silicone oil has the advantages of oil saving and the defect that the oil applying rate of sewing threads is difficult to control, if the ideal oil applying rate is 7 percent, the actual oil applying rate can fluctuate by more than +/-20 percent on the basis of the ideal oil applying rate, and the difference between the actual oil applying rate and the set value of the ideal oil applying rate is far away, so that the oil applying rate cannot be ensured. This is because the oil content of the sewing thread of the segment with a larger diameter is generally reduced due to the difference in thickness of the different segments of the sewing thread, and the oil content of the sewing thread is increased when the diameter of the sewing thread is reduced. And when the contact method oils, the sewing thread passes through the surface of the oiling roller at a high speed, and the contact of the sewing thread and the oiling roller can generate a jumping phenomenon, so that the contact length of the sewing thread and the oiling roller is changed, and the oiling rate of the sewing thread is influenced. With the increase of sewing speed of a sewing machine, the requirement on the stability of the oiling rate of sewing threads is higher and higher, and the existing oiling method cannot meet the use requirement.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the method and the device have the advantages that the control is accurate, the contact length between the sewing thread and the surface of the oiling roller is guaranteed to be unchanged, the rotating speed of the oiling roller can be dynamically changed along with the change of the diameter of the sewing thread, and therefore the oiling rate of the sewing thread is more stable.
Contact sewing thread automatic equalization device that oils, including last oil bath, be equipped with into oil pipe and play oil pipe on the oil bath, still include photoelectric detection device and central processing unit, photoelectric detection device is connected with the central processing unit electricity, it is equipped with the roller that oils to go up oil bath upper portion, in the fluid in the oil bath is immersed to the roller 1/4 periphery that oils, it is equipped with wire wheel I and wire wheel II respectively to go up oil bath both sides below, the roller that oils is connected with servo motor's output, servo motor passes through servo controller and is connected with central processing unit.
Preferably, the wrap angle between the upper end of the oiling roller and the circumferential surface of the lower parts of the guide wire wheel I and the guide wire wheel II is 15-30 degrees, the wrap angle is kept unchanged, the problem that the contact length of the sewing thread and the oiling roller is unstable can be solved, and therefore the oiling rate is prevented from being influenced.
Preferably, the mounting position of the oil outlet pipe corresponds to the circumferential surface of the oiling roller 1/4, the vertical distance between the oil outlet pipe and the bottom of the oiling pool is 4-5 cm, and the oil inlet pipe is mounted at the top of the oiling pool.
Preferably, the periphery of the oiling roller is uniformly distributed with grooves or protrusions, the diameter of the oiling roller is 8-10 cm, the grooves or the protrusions increase the contact area of oil and the oiling roller, and meanwhile, the sewing thread is prevented from shaking or jumping when the oiling roller is in contact with oiling, so that the contact length between the sewing thread and the surface of the oiling roller is kept unchanged to the greatest extent.
The contact type sewing thread automatic balanced oiling method comprises the following steps:
(1) oil liquid is injected into the oiling pool, the height of the oil liquid is flush with that of the oil outlet pipe, and the circumferential surface of the oiling roller 1/4 is immersed into the oil liquid in the oiling pool;
(2) sequentially enabling the sewing thread to pass through the photoelectric detection device, the bottom of the thread guide wheel I and the upper part of the oiling roller, and finally leading out the sewing thread from the bottom of the thread guide wheel II;
(3) starting the photoelectric detection device and the servo motor, driving the oiling roller to rotate by the servo motor, and contacting and sewing the sewing thread with the circumferential surface of the oiling roller after the sewing thread is detected by the photoelectric detection deviceThe time required for the threading to contact with the circumferential surface of the oiling roller is the same as the time required for the circumferential surface of the oiling roller to be separated from the oil liquid to contact with the sewing thread, and is t, namely 
v1For the speed of the drag of the sewing thread,/1The length v dragged by the sewing thread after being detected by the photoelectric detection device to the contact point with the circumferential surface of the oiling roller0For surface linear velocity of oiling roller, /)0The arc length of the oiling roller from the oil liquid to the contact with the sewing thread;
(4) the photoelectric detection device detects the diameter of the sewing thread, a detection signal is fed back to the central processing unit for processing, and the central processing unit controls the servo motor to dynamically adjust the rotating speed of the oiling roller after delaying t time according to the detection signal; the change rule of the real-time surface linear velocity v of the oiling roller is as follows:
in the formula: v. of0The average surface linear velocity of the oiling roller, d is the real-time detection diameter of the sewing thread, d0Is the average diameter of the sewing thread.
Preferably, the drawing speed v of said sewing thread1The range of (A) is 100 to 300 m/min.
Preferably, the oiling rate of the sewing thread is 5-9%.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the wrap angle between the sewing thread and the oiling roller is controlled to be 15-30 degrees by arranging the guide wheel I and the guide wheel II, and the wrap angle is kept unchanged, so that the contact length of the sewing thread and the oiling roller is kept unchanged, and the fluctuation of the oiling rate is reduced; meanwhile, the contact length is prevented from changing due to shaking or jumping of the sewing thread during oiling through the grooves or the bulges on the circumference of the oiling roller, and the stability of the oiling rate is improved; the grooves or the bulges can facilitate the oil to be attached to the surface of the oiling roller when the oiling roller rotates, so that the stability of the oiling rate is further improved;
2. The invention adds a photoelectric detection device and a central processing unit, dynamically detects the cross section diameter of the sewing thread in real time, and controls the speed of the oiling roller to change according to the cross section diameter of the sewing thread by the central processing unit, thereby correcting the phenomenon of unstable oiling rate caused by the thickness change of the sewing thread;
3. the invention has accurate control, reduces the fluctuation range of the oiling rate of the sewing thread from the original +/-20 percent to +/-5 percent, and greatly improves the accuracy and the stability of the oiling rate.
Drawings
FIG. 1 is a schematic diagram of the present invention;
fig. 2 is a schematic structural view of a oiling roller.
In the drawings, 1. sewing thread; 2. a photoelectric detection device; 3. a wire guide wheel I; 4. an oil feeding pool; 5. oiling roller; 6. a wire guide wheel II; 7. an oil inlet pipe; 8. an oil outlet pipe; 9. a servo motor; 10. a central processing unit.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
the first embodiment is as follows:
as shown in fig. 1 and fig. 2, the automatic balanced oiling device for contact sewing thread, including oiling pool 4, be equipped with into oil pipe 7 and play oil pipe 8 on oiling pool 4, still include photoelectric detection device 2 and central processing unit 10, photoelectric detection device 2 is connected with central processing unit 10 electricity, oiling pool 4 upper portion is equipped with oiling roller 5, in the 1/4 periphery of oiling roller 5 immerges the fluid of oiling pool 4, oiling pool 4 both sides below is equipped with wire wheel I3 and wire wheel II 6 respectively, oiling roller 5 is connected with servo motor 9's output, servo motor 9 is connected with central processing unit 10 through servo controller.
The wrap angle between the upper end of the oiling roller 5 and the circumferential surface of the lower parts of the wire guide wheel I3 and the wire guide wheel II 6 is 15 degrees; the mounting position of the oil outlet pipe 8 corresponds to the 1/4 circumferential surface of the oiling roller 5, the vertical distance between the oil outlet pipe 8 and the bottom of the oiling pool 4 is 4cm, and the oil inlet pipe 7 is mounted at the top of the oiling pool 4.
Grooves are uniformly distributed on the circumferential surface of the oiling roller 5, and the diameter of the oiling roller 5 is 8 cm.
The contact type sewing thread automatic balanced oiling method adopts the oiling device, and comprises the following steps:
(1) oil is injected into the oiling pool 4, the height of the oil is flush with that of the oil outlet pipe 8, and the 1/4 circumferential surface of the oiling roller 5 is immersed into the oil in the oiling pool 4;
(2) the sewing thread 1 sequentially passes through the photoelectric detection device 2, the circumferential surface of the bottom of the thread guide wheel I3 and the circumferential surface of the upper part of the oiling roller 5 and is finally led out by the circumferential surface of the bottom of the thread guide wheel II 6;
(3) starting the photoelectric detection device 2 and the servo motor 9, driving the oiling roller 5 to rotate by the servo motor 9, detecting the sewing thread 1 by the photoelectric detection device 2, contacting the sewing thread 1 with the circumferential surface of the oiling roller 5, wherein the time required for the sewing thread 1 to contact with the circumferential surface of the oiling roller 5 is the same as the time required for the circumferential surface of the oiling roller 5 to be separated from oil liquid to contact with the sewing thread 1, and is t, namely the time is t 
v1For the speed of the drag of the sewing thread,/1The length v dragged by the sewing thread after being detected by the photoelectric detection device to the contact point with the circumferential surface of the oiling roller0For surface linear velocity of oiling roller, /)0The arc length of the oiling roller from the oil liquid to the contact with the sewing thread;
(4) the photoelectric detection device detects the diameter of the sewing thread, a detection signal is fed back to the central processing unit for processing, and the central processing unit controls the servo motor to dynamically adjust the rotating speed of the oiling roller after delaying t time according to the detection signal; the change rule of the real-time surface linear velocity v of the oiling roller is as follows:
in the formula: v. of0The average surface linear velocity of the oiling roller, d is the real-time detection diameter of the sewing thread, d0Is the average diameter of the sewing thread.
The invention being operated with a speed v of drag of the sewing thread1The oiling rate of the sewing thread can reach 5 percent, and the fluctuation range of the oiling rate of the sewing thread can be reduced to 5 percent.
Example two: the circumferential surface of the oiling roller 5 is uniformly distributed with bulges, the diameter of the oiling roller 5 is 10cm, the vertical distance between the oil outlet pipe 8 and the bottom of the oiling pool 4 is 5cm, and the dragging speed v of sewing threads 1200m/min, the average rotating speed n of the oiling roller is 9.5 r/min; the rest is the same as the first embodiment.
In the embodiment, the oiling rate of the sewing thread can reach 9%, and the fluctuation range of the oiling rate of the sewing thread can be reduced to 3%.
Example three: the diameter of the oiling roller 5 is 9cm, the vertical distance between the oil outlet pipe 8 and the bottom of the oiling pool 4 is 4.5cm, and the dragging speed v of the sewing thread1300m/min, the average rotating speed n of the oiling roller is 12.5 r/min; the rest is the same as the first embodiment.
In the embodiment, the oiling rate of the sewing thread can reach 7%, and the fluctuation range of the oiling rate of the sewing thread can be reduced to 4%.
Claims (7)
1. The utility model provides an automatic balanced device that oils of contact sewing thread, includes last oil bath (4), is equipped with on last oil bath (4) and advances oil pipe (7) and go out oil pipe (8), its characterized in that: still include photoelectric detection device (2) and central processing unit (10), photoelectric detection device (2) are connected with central processing unit (10) electricity, it is equipped with oiling roller (5) to go up oil bath (4) upper portion, the 1/4 periphery of oiling roller (5) is soaked in the fluid of oiling bath (4), it is equipped with wire wheel I (3) and wire wheel II (6) respectively to go up oil bath (4) both sides below, it is connected with the output of servo motor (9) to go up oil roller (5), servo motor (9) are connected with central processing unit (10) through servo controller.
2. The contact sewing thread automatic equalizing oiling device of claim 1, characterized in that: the wrap angle between the upper end of the oiling roller (5) and the circumferential surface of the lower parts of the wire guide wheel I (3) and the wire guide wheel II (6) is 15-30 degrees.
3. The contact sewing thread automatic equalizing oiling device of claim 2, characterized in that: the mounting position of the oil outlet pipe (8) corresponds to the 1/4 circumferential surface of the oiling roller (5), the vertical distance between the oil outlet pipe (8) and the bottom of the oiling pool (4) is 4-5 cm, and the oil inlet pipe (7) is mounted at the top of the oiling pool (4).
4. The contact sewing thread automatic equalizing oiling device of claim 3, characterized in that: grooves or bulges are uniformly distributed on the circumferential surface of the oiling roller (5), and the diameter of the oiling roller (5) is 8-10 cm.
5. A contact type sewing thread automatic balanced oiling method is characterized by comprising the following steps:
(1) oil liquid is injected into the oiling pool, the height of the oil liquid is flush with that of the oil outlet pipe, and the circumferential surface of the oiling roller 1/4 is immersed into the oil liquid in the oiling pool;
(2) sequentially enabling the sewing thread to pass through the photoelectric detection device, the bottom of the thread guide wheel I and the upper part of the oiling roller, and finally leading out the sewing thread from the bottom of the thread guide wheel II;
(3) Starting the photoelectric detection device and the servo motor, driving the oiling roller to rotate by the servo motor, detecting the sewing thread by the photoelectric detection device, contacting the sewing thread with the circumferential surface of the oiling roller, wherein the time required for the sewing thread to contact with the circumferential surface of the oiling roller is the same as the time required for the circumferential surface of the oiling roller to be separated from the oil liquid to contact with the sewing thread, and is t, namely the time is t
v1For the speed of the drag of the sewing thread,/1The length v dragged by the sewing thread after being detected by the photoelectric detection device to the contact point with the circumferential surface of the oiling roller0For surface linear velocity of oiling roller, /)0The arc length of the oiling roller from the oil liquid to the contact with the sewing thread;
(4) the photoelectric detection device detects the diameter of the sewing thread, a detection signal is fed back to the central processing unit for processing, and the central processing unit controls the servo motor to dynamically adjust the rotating speed of the oiling roller after delaying t time according to the detection signal; the change rule of the real-time surface linear velocity v of the oiling roller is as follows:
in the formula: v. of0The average surface linear velocity of the oiling roller, d is the real-time detection diameter of the sewing thread, d0Is the average diameter of the sewing thread.
6. Contact sewing thread automatic equalizing oiling method according to claim 5, characterized in that the dragging speed v of the sewing thread 1The range of (A) is 100 to 300 m/min.
7. The automatic balanced oiling method for the contact sewing thread according to claim 5, wherein the oiling rate of the sewing thread is 5-9%.
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| CN202110557017.7A CN113201869B (en) | 2021-05-21 | 2021-05-21 | Contact type sewing thread automatic balanced oiling method and oiling device thereof |
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| CN202110557017.7A CN113201869B (en) | 2021-05-21 | 2021-05-21 | Contact type sewing thread automatic balanced oiling method and oiling device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113684637A (en) * | 2021-10-09 | 2021-11-23 | 南通斯雅淇纺织品有限公司 | Static DTY weaving silk intellectual detection system device |
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Denomination of invention: Automatic and balanced oiling method and oiling device for contact sewing thread Effective date of registration: 20221130 Granted publication date: 20220208 Pledgee: Postal Savings Bank of China Limited Linyi Branch Pledgor: LINYI AOBO TEXTILE THREAD CO.,LTD. Registration number: Y2022980024221 |
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