CN102182019B - Sewing machine and omni-sealed thread-taking-up mechanism thereof - Google Patents
Sewing machine and omni-sealed thread-taking-up mechanism thereof Download PDFInfo
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- CN102182019B CN102182019B CN 201110113232 CN201110113232A CN102182019B CN 102182019 B CN102182019 B CN 102182019B CN 201110113232 CN201110113232 CN 201110113232 CN 201110113232 A CN201110113232 A CN 201110113232A CN 102182019 B CN102182019 B CN 102182019B
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- tension lever
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Abstract
The invention discloses a sewing machine and an omni-sealed thread-taking-up mechanism thereof. The omni-sealed thread-taking-up mechanism comprises an omni-sealed transmission box, a passive transmission shaft and a thread-taking-up bar which are arranged in a housing of the sewing machine, wherein the passive transmission shaft penetrates in the right side wall of the transmission box; a cam is fixedly arranged at the left end of the passive transmission shaft; a cam slot is arranged on the left end surface of the cam; the lower end of the thread-taking-up bar is hinged on the right side wall of the transmission box; the upper end of the thread-taking-up bar is provided with a threading hole and penetrates out of the upper wall of the transmission box and the upper wall of the housing; the middle part of the thread-taking-up bar is provided with a pin roller; and the pin roller is placed in the cam slot and drives the upper end of the thread-taking-up bar to swing forwards and backwards along with the rotation of the cam. In the omni-sealed thread-taking-up mechanism of the sewing machine, provided by the invention, both the lower part of the thread-taking-up bar and a driving mechanism of the thread-taking-up bar are sealed in the omni-sealed transmission box; the omni-sealed transmission box is filled with machine oil; and therefore, when the sewing machine works, the noise is reduced, the dust cannot fall into the machine oil and the abrasion between the cam and the thread-taking-up bar is reduced.
Description
Technical field
The present invention relates to Sewing machines, particularly Sewing machines and hermetically sealed thread take-up mechanism thereof.
Background technology
In the thread take-up mechanism of tradition Sewing machines; The naked leakage of parts such as cam, thread take-up tension lever outside the transmission case of casing, this structure, Sewing machines when work noise is big; Wear rate is very fast, needs artificial timing to be lubricated to the junction apply oil of cam and thread take-up tension lever or through oily line.Yet, in the process of apply oil, lubricating oil is spilt pollute the sewing material, also make maintenance cost increase.In addition,, working environment is had relatively high expectations,, produce mechanical disorder in case leakage of oil can make the electronic devices and components job insecurity because modern Sewing machines all is the product of electromechanical integration generally.
Summary of the invention
Technical problem to be solved by this invention is that the thread take-up mechanism operating noise of solution Sewing machines is big, pollutes the sewing material during apply oil easily, and machine is easy to generate the problem of fault.
In order to solve the problems of the technologies described above; The technical scheme that the present invention adopted provides a kind of hermetically sealed thread take-up mechanism of Sewing machines; Comprise hermetic transmission case body, passive power transmission shaft and thread take-up tension lever in the casing that is arranged on Sewing machines, said passive power transmission shaft is installed on the right side wall of transmission case body, and the left end of said passive power transmission shaft is fixed with cam; The left side of said cam is provided with cam path; The lower end of said thread take-up tension lever is hinged on the right side wall of transmission case body, and the upper end is provided with through wires hole and passes the upper wall of transmission case body and the upper wall of casing, and the middle part of said thread take-up tension lever is provided with roller; Said roller places in the said cam path, and with the forward and backward swing in upper end of the said thread take-up tension lever of rotating drive of cam.
In the hermetically sealed thread take-up mechanism of above-mentioned Sewing machines, said transmission case body comprises the housing that the front is uncovered, and cover plate for sealing is in the uncovered portion of said housing, and said cover plate is provided with tank filler sleeve.
In the hermetically sealed thread take-up mechanism of above-mentioned Sewing machines; The sealing shroud that also comprises the rubber material; The end face of said transmission case body is provided with the thread take-up tension lever installation through holes; Said sealing shroud is provided with the upper and lower strip gab that communicates and end face is provided with annular lip; Sealing shroud is inserted in the thread take-up tension lever installation through holes and said annular lip is fixed on the end face of said transmission case body, and the upper end of said thread take-up tension lever passes from said strip gab from bottom to top, the body of rod corresponding site sealing of the lower end of said sealing shroud and said thread take-up tension lever.
The present invention also provides a kind of Sewing machines that adopts above-mentioned hermetically sealed thread take-up mechanism; Be provided with wire-threading device, tension disk, anti-coiling sheet and needle bar bracket on the end face of Sewing machines casing from left to right successively; Thread take-up tension lever is positioned at the dead ahead of anti-coiling sheet; Sewing thread passes the right-hand member and the needle bar bracket of wire-threading device, tension disk, the left end of preventing the coiling sheet, the through wires hole on the thread take-up tension lever, anti-coiling sheet successively, and the strip gab on the upper end edge sealing shroud of thread take-up tension lever seesaws.
The hermetically sealed thread take-up mechanism of Sewing machines provided by the invention; The bottom of thread take-up tension lever and driving mechanism thereof all are sealed in the hermetic transmission case body; Can machine oil in the hermetic transmission case body; Therefore noise reduces during Sewing machines work, and dust can not fall in the machine oil, has reduced the wearing and tearing between cam and the thread take-up tension lever.
Description of drawings
Fig. 1 is the hermetically sealed thread take-up mechanism decomposition texture sketch map of Sewing machines provided by the invention;
Fig. 2 is the hermetically sealed thread take-up mechanism scheme of installation of Sewing machines provided by the invention;
Fig. 3 is a Sewing machines structural representation provided by the invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is made detailed explanation.
Like Fig. 1, shown in Figure 2, the hermetically sealed thread take-up mechanism of Sewing machines provided by the invention comprises transmission case body 32 and the thread take-up tension lever 19 that is arranged in the transmission case body 32.
The lower end of thread take-up tension lever 19 is hinged on the right side wall of transmission case body 32 through bearing pin 10; The upper end is provided with the through wires hole that is used to install sewing thread; Thread take-up tension lever 19 the upper end pass the upper wall of transmission case body 32 and the upper wall of casing; The middle part of thread take-up tension lever 19 is provided with roller 18, is set with needle bearing 17 on the roller 18.Needle bearing 17 places in the cam path 15, and like this, along with the rotation of cam 16, roller 18 moves along cam path 15, thereby drives the forward and backward swing in upper end of thread take-up tension lever 19.Passive power transmission shaft 8 is driven through synchronous belt drive mechanism by power transmission shaft 1.
Thread take-up tension lever installation through holes place on transmission case body 32 end faces is provided with sealing shroud 20; The material of sealing shroud 20 is an elastomeric material; Sealing shroud 20 is provided with the upper and lower strip gab that communicates and end face is provided with annular lip; Sealing shroud 20 is inserted in the thread take-up tension lever installation through holes, and annular lip is provided with compressing tablet 21, through screw 22 annular lip and compressing tablet 21 is fixed on the end face of transmission case body 32; The upper end of thread take-up tension lever 19 passes the strip gab from sealing shroud 20 from bottom to top, and the body of rod corresponding site of thread take-up tension lever 19 and the lower end of sealing shroud 20 are sealed into one.The purpose of this structural design is to prevent that machine oil from spilling with dust to fall in the transmission case body.Specifically, for thread take-up tension lever 19 is installed, on the end face of transmission case body 32 the thread take-up tension lever installation through holes must be set; So that thread take-up tension lever 19 extend into through the thread take-up tension lever installation through holes in the inner chamber of transmission case body 32, because the substructure of thread take-up tension lever 19 is bigger, therefore; The thread take-up tension lever installation through holes is also bigger; Like this, the machine oil in the transmission case body 32 spills in the thread take-up tension lever installation through holes easily, and dust also can fall in the transmission case body 32 through the thread take-up tension lever installation through holes.In order to overcome above-mentioned defective; The present invention is provided with sealing shroud 20; Will thread take-up tension lever 19 is extend in the inner chamber of transmission case body 32 through the thread take-up tension lever installation through holes after; Sealing shroud 20 is worn from the upper end of thread take-up tension lever 19, and annular lip is dropped on the end face of transmission case body 32, and is fixed on the end face of casing 32 through compressing tablet 21 and screw 22.Because sealing shroud 20 is that elastomeric material is done, the upper end strip gab is the long and narrow hole that is provided with along front and rear direction simultaneously, and lower end and thread take-up tension lever close-fitting one swing.Therefore, can prevent that machine oil from spilling on the one hand, can prevent also that on the other hand dust from falling in the transmission case body 32.
The present invention also provides a kind of Sewing machines that adopts above-mentioned hermetically sealed thread take-up mechanism, and its external structure sketch map is as shown in Figure 3.Be provided with wire-threading device 2, tension disk 3, anti-coiling sheet 4 and needle bar bracket 5 on the upper surface of the casing 31 of Sewing machines from left to right successively; Owing to adopted above-mentioned hermetically sealed thread take-up mechanism; Therefore; What existing together design was different is that tension disk 3 all is arranged on the end face of casing 31 with the anti-sheet 4 that winds the line; Thread take-up tension lever 19 is positioned at the dead ahead of anti-coiling sheet 4, and sewing thread passes the right-hand member and the needle bar bracket 5 of wire-threading device 2, tension disk 3, the left end of preventing coiling sheet 4, the through wires hole on the thread take-up tension lever 19, anti-coiling sheet 4 successively, and wherein thread take-up tension lever 19 seesaws.Sewing machines provided by the invention, the distance between the upper end of thread take-up tension lever and the anti-coiling sheet is shorter, and take-up is even, can adapt to higher sewing velocity.
The present invention is not limited to above-mentioned preferred forms, and anyone should learn the structural change of under enlightenment of the present invention, making, and every have identical or close technical scheme with the present invention, all falls within protection scope of the present invention.
Claims (4)
1. the hermetically sealed thread take-up mechanism of Sewing machines is characterized in that, comprising:
Hermetic transmission case body is arranged in the casing of Sewing machines;
Passive power transmission shaft is installed on the right side wall of transmission case body, and the left end of said passive power transmission shaft is fixed with cam, and the left side of said cam is provided with cam path;
Thread take-up tension lever; Its lower end is hinged on the right side wall of transmission case body; The upper end is provided with through wires hole and passes the upper wall of transmission case body and the upper wall of casing; The middle part of said thread take-up tension lever is provided with roller, and said roller places in the said cam path, and with the forward and backward swing in upper end of the said thread take-up tension lever of rotating drive of cam.
2. the hermetically sealed thread take-up mechanism of Sewing machines as claimed in claim 1 is characterized in that, said transmission case body comprises the housing that the front is uncovered, and cover plate for sealing is in the uncovered portion of said housing, and said cover plate is provided with tank filler sleeve.
3. the hermetically sealed thread take-up mechanism of Sewing machines as claimed in claim 2; It is characterized in that; The sealing shroud that also comprises the rubber material; The end face of said transmission case body is provided with the thread take-up tension lever installation through holes, and said sealing shroud is provided with the upper and lower strip gab that communicates and end face is provided with annular lip, and sealing shroud is inserted in the thread take-up tension lever installation through holes and said annular lip is fixed on the end face of said transmission case body; The upper end of said thread take-up tension lever passes from said strip gab from bottom to top, the body of rod corresponding site sealing of the lower end of said sealing shroud and said thread take-up tension lever.
4. Sewing machines; It is characterized in that comprising hermetically sealed thread take-up mechanism as claimed in claim 3; Be provided with wire-threading device, tension disk, anti-coiling sheet and needle bar bracket on the end face of Sewing machines casing from left to right successively; Thread take-up tension lever is positioned at the dead ahead of anti-coiling sheet, and sewing thread passes the right-hand member and the needle bar bracket of wire-threading device, tension disk, the left end of preventing the coiling sheet, the through wires hole on the thread take-up tension lever, anti-coiling sheet successively, and the strip gab on the upper end edge sealing shroud of thread take-up tension lever seesaws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110113232 CN102182019B (en) | 2011-05-04 | 2011-05-04 | Sewing machine and omni-sealed thread-taking-up mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110113232 CN102182019B (en) | 2011-05-04 | 2011-05-04 | Sewing machine and omni-sealed thread-taking-up mechanism thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102182019A CN102182019A (en) | 2011-09-14 |
| CN102182019B true CN102182019B (en) | 2012-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110113232 Active CN102182019B (en) | 2011-05-04 | 2011-05-04 | Sewing machine and omni-sealed thread-taking-up mechanism thereof |
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| CN (1) | CN102182019B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106637728A (en) * | 2016-12-20 | 2017-05-10 | 广西风华服饰有限责任公司 | Sewing system and sewing method |
| CN113699706B (en) * | 2020-05-22 | 2022-09-27 | 杰克科技股份有限公司 | Sealed take-up mechanism and sewing machine |
| CN114197119A (en) * | 2021-12-20 | 2022-03-18 | 徐州力达缝纫设备制造有限公司 | Thread take-up mechanism for sewing machine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10211380A (en) * | 1997-01-28 | 1998-08-11 | Juki Corp | Sewing machine |
| JP4450943B2 (en) * | 2000-04-17 | 2010-04-14 | Ｊｕｋｉ株式会社 | Needle thread sewing machine needle thread guide device |
| JP2007097811A (en) * | 2005-10-04 | 2007-04-19 | Brother Ind Ltd | Link thread take-up mechanism of sewing machine |
| CN201241256Y (en) * | 2008-07-17 | 2009-05-20 | 张章生 | Take-up mechanism of sewing machine |
| CN202107882U (en) * | 2011-05-04 | 2012-01-11 | 张章生 | Sewing machine and hermetically sealed thread-taking-up mechanism |
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2011
- 2011-05-04 CN CN 201110113232 patent/CN102182019B/en active Active
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| CN102182019A (en) | 2011-09-14 |
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Effective date of registration: 20170516 Address after: The town of Yongxing high tech Zone Li Jia Yuan Cun 621000 Sichuan city of Mianyang Province Patentee after: Sichuan fine sewing machine Co., Ltd. Address before: Yueqing City, Zhejiang province 325608 Tiancheng Xiang Ma Village Patentee before: Zhang Zhangsheng |
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