CN204530155U - Needle bar of sewing machine switching mechanism - Google Patents
Needle bar of sewing machine switching mechanism Download PDFInfo
- Publication number
- CN204530155U CN204530155U CN201520113979.3U CN201520113979U CN204530155U CN 204530155 U CN204530155 U CN 204530155U CN 201520113979 U CN201520113979 U CN 201520113979U CN 204530155 U CN204530155 U CN 204530155U
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- shank
- sewing machine
- position control
- needle bar
- sewing machines
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Abstract
A kind of needle bar of sewing machine switching mechanism, it is characterized in that, shank press component (1), it is for the shank press component (1) be arranged on Sewing machines, and it is for carrying out applying pressing force to two shanks in a pair shank be arranged on Sewing machines or any one; Shank position control assembly (2), it is for being connected in a pair shank be arranged on Sewing machines or two shanks with shank press component (1) or throwing off; Shank positioning component (3), it is fixed on the housing of Sewing machines, for locating the position of shank position control assembly, to realize when Sewing machines two shanks are made one of them or two work or not working.It is simple that the utility model has structure, is easy to the advantage operated.
Description
Technical field
The present invention relates to sewing machine technique field, be specifically related to a kind of needle bar of sewing machine switching mechanism.
Background technology
Along with the high speed development of technology, the structure of Sewing machines also becomes increasingly complex, and as the two-needle sewing machine that market occurs, namely the shank of this Sewing machines has two, realizes the conversion of single needle or crosspointer; But this shank change complex structure, takes up room large, and complex operation, inconvenient.
Summary of the invention
The present invention is directed to the above-mentioned deficiency of prior art, provide a kind of structure simple, be easy to the needle bar of sewing machine switching mechanism operated.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of needle bar of sewing machine switching mechanism, comprising:
Shank press component, it is for carrying out applying pressing force to two shanks in a pair shank be arranged on Sewing machines or any one;
Shank position control assembly, it is for be connected with shank press component in a pair shank be arranged on Sewing machines or two shanks or to throw off;
Shank positioning component, it is fixed on the housing of Sewing machines, for locating the position of shank position control assembly, to realize when Sewing machines two shanks are made one of them or two work or not working.
Shank press component of the present invention comprises guide table, and the sidewall of described guide table is provided with limit shaft sleeve, and the end of limit shaft sleeve is connected with the bulb of the second double threaded screw assembly in shank position control assembly; Described limit shaft sleeve rotates on the fixed axis that is sleeved on and is fixed on Sewing machines housing, and the bottom described fixed axis being positioned at limit shaft sleeve is provided with pad, and the top being positioned at limit shaft sleeve is provided with the cover plate limiting its axial displacement; Described guide table is provided with waist through hole, guide table axially (length direction) is provided with the axially extending bore of through waist through hole, one end near mounting hole in axially extending bore is provided with the first pin, the other end is provided with the first screw, the first spring is provided with between the first pin and the first screw, be provided with guide finger vertically in mounting hole, the guide finger left and right sides and the first pin lean; The lower end of guide finger is provided with the axis of guide, and the axis of guide is connected with the conversion crank for pressing needle bar of sewing machine upper end; Described conversion crank is provided with the through hole closed with the axle sleeve of needle bar of sewing machine, the lower surface of described conversion crank is provided with the groove of the accommodating needle bar of sewing machine of energy of one end open.
Shank position control assembly of the present invention, comprises shank position control bar, shank position control bar bottom is provided with handle part, upper end is connected with shift shaft, the other end of shift shaft is connected with connecting rod crank; The upper end of described connecting rod crank is connected with the first double threaded screw assembly, and the first double threaded screw assembly is connected with the second double threaded screw assembly by double threaded screw; The first described double threaded screw assembly and the second double threaded screw assembly are rotationally connected with connecting rod crank or shank press component respectively by being arranged at bulb in head, that be threaded hole.
Shank positioning component of the present invention, comprise the installing plate be fixed on Sewing machines housing, installing plate arranged outside has shank changing lever, shank changing lever is provided with limit shaft near the side of installing plate, limit shaft is sheathed with spring, and both ends of the spring leans with installing plate and shank changing lever respectively; Described shank changing lever arranged outside has shank position target, described shank position control bar is provided with the place end of handle part between shank changing lever and shank position target, be provided with inside described shank position control bar shank position control bar left and right mobile time and shank changing lever lean and realize spacing ladder pin.
As preferably, described target lateral surface top, shank position of the present invention arranges wired hook; Adopt this structure, facilitate the line on Sewing machines to lead, and be not easily wound around, break.
As preferably, guide table lower surface of the present invention is provided with kidney slot, guide table is axially provided with the axially extending bore through with kidney slot, described axially extending bore is provided with the second pin near one end of kidney slot, the other end is provided with the second screw, is provided with the second spring between the second described pin and the second screw; Described Sewing machines housing is positioned at below kidney slot and is provided with fillister head screw, described fillister head screw stretches in kidney slot, both sides and the second pin lean; Adopt said structure, can be fixed on housing by guide table, the angle simultaneously realizing wire platform according to the requirement of rotational angle and the pretightning force between the second spring and the second pin changes.
The needle bar of sewing machine switching mechanism that the present invention is above-mentioned, structure is simple, is easy to operation, effectively can realizes conversion and the work of Sewing machines crosspointer.
Accompanying drawing explanation
Fig. 1 needle bar of sewing machine switching mechanism of the present invention structural representation.
Fig. 2 needle bar of sewing machine guide table of the present invention structural representation.
Fig. 3 the present invention converts crank structure schematic diagram.
The structural representation that Fig. 4 guide table of the present invention is connected with needle bar of sewing machine.
Fig. 5 switching mechanism of the present invention is arranged at the structural representation on Sewing machines.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in more detail, but is not limited only to following examples.
As Figure 1-4: a kind of needle bar of sewing machine switching mechanism, comprising: shank press component 1, it is for carrying out applying pressing force to two shanks in a pair shank be arranged on Sewing machines or any one;
Shank position control assembly 2, it is for be connected with shank press component 1 in a pair shank be arranged on Sewing machines or two shanks or to throw off;
Shank positioning component 3, it is fixed on the housing of Sewing machines, for locating the position of shank position control assembly, to realize when Sewing machines two shanks are made one of them or two work or not working.
Described shank press component 1 comprises guide table 39, and the sidewall of described guide table is provided with limit shaft sleeve 39.1, and the end of limit shaft sleeve is connected with the bulb 2c of the second double threaded screw assembly 2b in shank position control assembly 2; Described limit shaft sleeve 39.1 rotates on the fixed axis 39.2 that is sleeved on and is fixed on Sewing machines housing, the bottom described fixed axis 39.2 being positioned at limit shaft sleeve 39.1 is provided with pad 33, and the top being positioned at limit shaft sleeve 39.1 is provided with the cover plate 33.1 limiting its axial displacement; Described guide table 39 is provided with waist through hole 39.3, guide table is axially provided with the axially extending bore 39.4 of through waist through hole, one end near mounting hole in axially extending bore is provided with the first pin 38, the other end is provided with the first screw 38.1, the first spring 37 is provided with between the first pin and the first screw, be provided with guide finger 31 vertically in mounting hole, the guide finger left and right sides and the first pin lean; The lower end of guide finger is provided with the axis of guide 31.1, and the axis of guide is connected with the conversion crank 30 for pressing needle bar of sewing machine upper end; Described conversion crank is provided with the through hole with axle 41 fit of needle bar of sewing machine, the lower surface of described conversion crank is provided with the groove 30.1 of the accommodating needle bar of sewing machine of energy of one end open.
Described shank position control assembly 2, comprises shank position control bar 14, and the bottom of shank position control bar is provided with handle part 14a, upper end is connected with shift shaft 11, and the other end of shift shaft is connected with connecting rod crank 8; The upper end of described connecting rod crank is connected with the first double threaded screw assembly 2a, and the first double threaded screw assembly is connected with the second double threaded screw assembly 2b by double threaded screw 5; The first described double threaded screw assembly 2a and the second double threaded screw assembly 2b is rotationally connected with connecting rod crank or shank press component 1 respectively by being arranged at bulb 2c in head, that be threaded hole.
Described shank positioning component 3, comprise the installing plate 27 be fixed on Sewing machines housing, installing plate arranged outside has shank changing lever 23, shank changing lever is provided with limit shaft 24 near the side of installing plate, limit shaft is sheathed with spring, and both ends of the spring leans with installing plate and shank changing lever respectively; Described shank changing lever arranged outside has shank position target 20, described shank position control bar 14 is provided with the place end of handle part between shank changing lever and shank position target, be provided with inside described shank position control bar shank position control bar left and right mobile time and shank changing lever lean and realize spacing ladder pin 18.
Described target lateral surface top, shank position of the present invention arranges wired hook 15; Adopt this structure, facilitate the line on Sewing machines to lead, and be not easily wound around, break.
Guide table 39 lower surface of the present invention is provided with kidney slot 39.5, guide table 39 is axially provided with the axially extending bore through with kidney slot, described axially extending bore is provided with the second pin 34 near one end of kidney slot, the other end is provided with the second screw 36, is provided with the second spring 35 between the second described pin and the second screw; Described Sewing machines housing is positioned at below kidney slot and is provided with fillister head screw 29, described fillister head screw stretches in kidney slot, both sides and the second pin lean; Adopt said structure, can be fixed on housing by guide table, the angle simultaneously realizing wire platform according to the requirement of rotational angle and the pretightning force between the second spring 35 and the second pin 34 changes.
As shown in Figure 5, during use, shift shaft 11 is horizontally through Sewing machines housing and realizes fixing, guide table is fixed by cover plate and Sewing machines housing, then after all parts of needle bar of sewing machine switching mechanism being described connection according to said structure, the bottom that workman holds shank position control bar 14 is provided with handle part 14a and moves to the left, ladder pin 18 inside now shank position control bar 14 is just positioned the L position of shank position target by shank changing lever 23 interception, and shank position control bar 14 drivening rod crank moves to the right, guide table is driven to move to the left by double threaded screw assembly and double threaded screw, now, guide finger in guide table mounting hole moves to the left along with guide table, the conversion crank of its underpart is driven to move to the left, press down the needle bar of sewing machine being positioned at left side, then left side shank quits work, right side shank is positioned at the groove 30.1 of conversion crank, be not subject to pressing force, still can move up and down under the drive of the driving wheel of Sewing machines.In like manner, right side is also identical.Said structure of the present invention is easily easy to operate.
As shown in Figure 4, needle bar of sewing machine structure of the present invention, the horizontal power transmission shaft 50 be wherein connected with two shanks, the driving wheel of itself and Sewing machines is in transmission connection, thus make power transmission shaft 50 drive shank to move up and down by the drive of driving wheel, after one of them shank is pressed by the conversion crank 30 in shank press component, be in stationary state, then the shank that now power transmission shaft just can only drive another root not to be pressed moves up and down, thus realizes the map function of shank; The concrete internal structure of shank can application reference number be 200610151828.2 application documents, freely convert under pressing force effect realize action or the structure of Sewing machines crosspointer bar of being failure to actuate all goes for the present invention as long as realize shank.
Claims (6)
1. a needle bar of sewing machine switching mechanism, is characterized in that: comprise
Shank press component (1), it is for carrying out applying pressing force to two shanks in a pair shank be arranged on Sewing machines or any one;
Shank position control assembly (2), it is for being connected in a pair shank be arranged on Sewing machines or two shanks with shank press component (1) or throwing off;
Shank positioning component (3), it is fixed on the housing of Sewing machines, for locating the position of shank position control assembly, to realize when Sewing machines two shanks are made one of them or two work or not working.
2. needle bar of sewing machine switching mechanism according to claim 1, it is characterized in that: described shank press component (1) comprises guide table (39), the sidewall of described guide table is provided with limit shaft sleeve (39.1), and the end of limit shaft sleeve is connected with the bulb (2c) of the second double threaded screw assembly (2b) in shank position control assembly (2); Described limit shaft sleeve (39.1) rotates on the fixed axis (39.2) that is sleeved on and is fixed on Sewing machines housing, the bottom described fixed axis (39.2) being positioned at limit shaft sleeve (39.1) is provided with pad (33), and the top being positioned at limit shaft sleeve (39.1) is provided with the cover plate (33.1) limiting its axial displacement; Described guide table (39) is provided with waist through hole (39.3), guide table is axially provided with the axially extending bore (39.4) of through waist through hole, one end near mounting hole in axially extending bore is provided with the first pin (38), the other end is provided with the first screw (38.1), the first spring (37) is provided with between the first pin and the first screw, be provided with guide finger (31) in mounting hole vertically, the guide finger left and right sides and the first pin lean; The lower end of guide finger is provided with the axis of guide (31.1), and the axis of guide is connected with the conversion crank (30) for pressing needle bar of sewing machine upper end; Described conversion crank is provided with the through hole with the axle of needle bar of sewing machine (41) fit, the lower surface of described conversion crank is provided with the groove (30.1) of the accommodating needle bar of sewing machine of energy of one end open.
3. needle bar of sewing machine switching mechanism according to claim 1, it is characterized in that: described shank position control assembly (2), comprise shank position control bar (14), the bottom of shank position control bar is provided with handle part (14a), upper end is connected with shift shaft (11), and the other end of shift shaft is connected with connecting rod crank (8); The upper end of described connecting rod crank is connected with the first double threaded screw assembly (2a), and the first double threaded screw assembly is connected with the second double threaded screw assembly (2b) by double threaded screw (5); The first described double threaded screw assembly (2a) and the second double threaded screw assembly (2b) are rotationally connected with connecting rod crank or shank press component (1) respectively by being arranged at bulb (2c) in head, that be threaded hole.
4. needle bar of sewing machine switching mechanism according to claim 1, it is characterized in that: described shank positioning component (3), comprise the installing plate (27) be fixed on Sewing machines housing, installing plate arranged outside has shank changing lever (23), shank changing lever is provided with limit shaft (24) near the side of installing plate, limit shaft is sheathed with spring, and both ends of the spring leans with installing plate and shank changing lever respectively; Described shank changing lever arranged outside has shank position target (20), described shank position control bar (14) is provided with the place end of handle part between shank changing lever and shank position target, be provided with inside described shank position control bar shank position control bar left and right mobile time and shank changing lever lean and realize spacing ladder pin (18).
5. needle bar of sewing machine switching mechanism according to claim 1, is characterized in that: described target (20) lateral surface top, shank position arranges wired hook (15).
6. needle bar of sewing machine switching mechanism according to claim 2, it is characterized in that: described guide table (39) lower surface is provided with kidney slot (39.5), guide table (39) is axially provided with the axially extending bore through with kidney slot, described axially extending bore is provided with the second pin (34) near one end of kidney slot, the other end is provided with the second screw (36), is provided with the second spring (35) between the second described pin and the second screw; Described Sewing machines housing is positioned at below kidney slot and is provided with fillister head screw (29), described fillister head screw stretches in kidney slot, both sides and the second pin lean.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520113979.3U CN204530155U (en) | 2015-02-16 | 2015-02-16 | Needle bar of sewing machine switching mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520113979.3U CN204530155U (en) | 2015-02-16 | 2015-02-16 | Needle bar of sewing machine switching mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204530155U true CN204530155U (en) | 2015-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520113979.3U Expired - Fee Related CN204530155U (en) | 2015-02-16 | 2015-02-16 | Needle bar of sewing machine switching mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204530155U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104593958A (en) * | 2015-02-16 | 2015-05-06 | 宁波缝纫机实业有限公司 | Needle-bar switching mechanism for sewing machine |
| CN113078470A (en) * | 2021-04-06 | 2021-07-06 | 北京有竹居网络技术有限公司 | Antenna control device and terminal |
-
2015
- 2015-02-16 CN CN201520113979.3U patent/CN204530155U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104593958A (en) * | 2015-02-16 | 2015-05-06 | 宁波缝纫机实业有限公司 | Needle-bar switching mechanism for sewing machine |
| CN113078470A (en) * | 2021-04-06 | 2021-07-06 | 北京有竹居网络技术有限公司 | Antenna control device and terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20160216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |