CN104593958B - Needle-bar switching mechanism for sewing machine - Google Patents
Needle-bar switching mechanism for sewing machine Download PDFInfo
- Publication number
- CN104593958B CN104593958B CN201510083747.2A CN201510083747A CN104593958B CN 104593958 B CN104593958 B CN 104593958B CN 201510083747 A CN201510083747 A CN 201510083747A CN 104593958 B CN104593958 B CN 104593958B
- Authority
- CN
- China
- Prior art keywords
- shank
- sewing machine
- needle
- position control
- bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B55/00—Needle holders; Needle bars
- D05B55/10—Needle bars for multiple-needle sewing machines
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B55/00—Needle holders; Needle bars
- D05B55/14—Needle-bar drives
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention provides a needle-bar switching mechanism for a sewing machine. The needle-bar switching mechanism is characterized by comprising a needle-bar pressing component (1), a needle-bar position control component (2) and a needle-bar positioning component (3), wherein the needle-bar pressing component (1) is used for pressing two needle bars or any one of a pair of needle bars arranged on the sewing machine; the needle-bar position control component (2) is used for controlling the connection or disconnection of one needle bar or two needle bars of a pair of needle bars arranged on the sewing machine with or from the needle-bar pressing component (1); the needle-bar positioning component (3) is fixed on the casing of the sewing machine and is used for positioning the needle-bar position control component, so that one needle bar or the two needle bars can be controlled to work or not to work during sewing. The needle-bar switching mechanism provided by the invention has the advantages of simple structure and easy operation.
Description
Technical field
The present invention relates to sewing machine technique field is and in particular to a kind of needle bar of sewing machine switching mechanism.
Background technology
With the high speed development of technology, the structure of sewing machine also becomes increasingly complex, the two-needle sewing machine such as occurring on market,
I.e. the shank of this sewing machine has two, realizes the conversion of single needle or crosspointer；But this shank changes complex structure, takes up room
Greatly, and complex operation it has not been convenient to.
Content of the invention
The present invention is directed to the above-mentioned deficiency of prior art, provides a kind of structure simple it is easy to the needle bar of sewing machine of operation is cut
Converting mechanism.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is: a kind of needle bar of sewing machine switching mechanism, bag
Include:
Shank press component, it is used for two shanks in a pair of shank being arranged on sewing machine or any one are entered
Row applies pressing force；
Shank position control assembly, its be used in a pair of shank being arranged on sewing machine or two shanks with
Shank press component connects or disengages；
Shank positioning component, it is fixed on the housing of sewing machine, for positioning the position of shank position control assembly, real
Show one of during two shanks sewings of sewing machine or two work or do not work.
Shank press component of the present invention includes guide table, and the side wall of described guide table is provided with limit shaft sleeve,
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
Set turning set is together in the bottom setting in the fixing axle being fixed on sewing machine housing, described fixing axle being located at limit shaft sleeve
There is pad, the cover plate of its axial displacement restricted is set positioned at the top of limit shaft sleeve；It is provided with kidney-shaped in described guide table
Through hole, guide table axial direction (length direction) is provided with the axially extending bore of insertion waist through hole, near mounting hole in axially extending bore
One end is provided with the first pin, and the other end is provided with the first screw, is provided with the first bullet between the first pin and the first screw
Spring, kidney-shaped in the hole is axially disposed guide finger, and the guide finger left and right sides is leant with the first pin；The lower end setting of guide finger
There is the axis of guide, the axis of guide is connected with the conversion crank for pressing needle bar of sewing machine upper end；It is provided with described conversion crank
The through hole closing with the axle sleeve of needle bar of sewing machine, the energy that the described lower surface of conversion crank is provided with one end open houses sewing
The groove of eedle bar.
Shank position control assembly of the present invention, including shank position control bar, the lower end of shank position control bar
Portion is provided with handle part, upper end is connected with shift shaft, and the other end of shift shaft is connected with connecting rod crank；Described connecting rod
The upper end of crank is connected with the first double threaded screw assembly, and the first double threaded screw assembly passes through double threaded screw and the second double threaded screw group
Part connects；The first described double threaded screw assembly and the second double threaded screw assembly by be arranged in head, be threaded hole
Bulb rotate with connecting rod crank or shank press component respectively and be connected.
Shank positioning component of the present invention, including the installing plate being fixed on sewing machine housing, sets outside installing plate
It is equipped with shank changing lever, shank changing lever is provided with limit shaft near the side of installing plate, limit shaft is sheathed with spring,
Both ends of the spring is leant with installing plate and shank changing lever respectively；It is provided with shank position outside described shank changing lever
Target, described shank position control bar be provided with handle part place end be located at shank changing lever and shank position target it
Between, be provided with inside described shank position control bar shank position control bar left and right mobile when offset with shank changing lever
By realizing spacing ladder pin.
Preferably, the described shank position target lateral surface top of the present invention arranges wired hook；Using this structure, side
Just the line on sewing machine is guided, and is difficult to be wound around, breaks.
Preferably, being provided with kidney slot on described guide table lower surface, length direction is provided with and kidney slot insertion
Axially extending bore, described axis through bore is provided with pin near one end of kidney slot, the other end is provided with screw, described pin
It is provided with second spring between nail and screw；Described sewing machine housing is upper to be provided with fillister head screw below kidney slot,
Described fillister head screw stretches in kidney slot, both sides and pin lean；Using said structure, can to guide table admittedly
On housing, the pretightning force between the requirement according to rotational angle and second spring and pin realizes the angle of wire platform simultaneously
Change.
The above-mentioned needle bar of sewing machine switching mechanism of the present invention, structure simply it is easy to operation, can effectively realize sewing machine crosspointer
Conversion and work.
Brief description
Fig. 1 needle bar of sewing machine of the present invention switching mechanism structural representation.
Fig. 2 needle bar of sewing machine of the present invention guide table structural representation.
Fig. 3 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 machine.
Specific embodiment
With reference to the accompanying drawings and detailed description the present invention is described in more detail, but is not limited only to following reality
Apply example.
As Figure 1-4: a kind of needle bar of sewing machine switching mechanism, comprising: shank press component 1, it is used for being arranged at
Two shanks in a pair of shank on sewing machine or any one carry out applying pressing force；
Shank position control assembly 2, it is used in a pair of shank being arranged on sewing machine or two shanks
It is connected with shank press component 1 or disengage；
Shank positioning component 3, it is fixed on the housing of sewing machine, for positioning the position of shank position control assembly,
Realize one of during two shank sewings of sewing machine or two work or do not work.
Described shank press component 1 includes guide table 39, and the side wall of described guide table is provided with limit shaft sleeve 39.1,
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 turning set, together in the fixing axle 39.2 being fixed on sewing machine housing, described fixing axle 39.2 is located at
The bottom of limit shaft sleeve 39.1 is provided with pad 33, arranges the lid of its axial displacement restricted positioned at the top of limit shaft sleeve 39.1
Plate 33.1；It is provided with waist through hole 39.3, the axially arranged axial direction having insertion waist through hole of guide table in described guide table 39
Through hole 39.4, in axially extending bore, the one end near mounting hole is provided with the first pin 38, and the other end is provided with the first screw 38.1,
It is provided with the first spring 37 between the first pin and the first screw, kidney-shaped in the hole is axially disposed guide finger 31, guide finger
The left and right sides is leant with the first pin；The lower end of guide finger is provided with the axis of guide 31.1, and the axis of guide is connected with for by tooled joint
The conversion crank 30 of needle of sewing machine bar upper end；Through hole with axle 41 fit of needle bar of sewing machine is provided with described conversion crank,
The energy being provided with one end open on the described lower surface of conversion crank houses the groove 30.1 of needle bar of sewing machine.
Described shank position control assembly 2, including shank position control bar 14, the bottom of shank position control bar sets
It is equipped with handle part 14a, upper end is connected with shift shaft 11, the other end of shift shaft is connected with connecting rod crank 8；Described company
The upper end of pole crank is connected with the first double threaded screw assembly 2a, and the first double threaded screw assembly passes through double threaded screw 5 and the second double end
Screw arbor assembly 2b connects；The first described double threaded screw assembly 2a and the second double threaded screw assembly 2b is by being arranged in head
, the bulb 2c being threaded hole rotated with connecting rod crank or shank press component 1 respectively and is connected.
Described shank positioning component 3, including the installing plate 27 being fixed on sewing machine housing, is provided with outside installing plate
Shank changing lever 23, shank changing lever is provided with limit shaft 24 near the side of installing plate, and limit shaft is sheathed with spring,
Both ends of the spring is leant with installing plate and shank changing lever respectively；It is provided with shank position outside described shank changing lever
Target 20, the place end that described shank position control bar 14 is provided with handle part is located at shank changing lever and shank position mark
Between plate, be provided with inside described shank position control bar shank position control bar left and right mobile when with shank changing lever
Lean and realize spacing ladder pin 18.
The described shank position target lateral surface top of the present invention arranges wired hook 15；Using this structure, convenient sewing
Line on machine is guided, and is difficult to be wound around, breaks.
It is provided with kidney slot 9.1, kidney slot 9.1 is length direction vertically on guide table 9 lower surface of the present invention
It is provided with the axially extending bore with kidney slot insertion, described axially extending bore is provided with pin 34, another near one end of kidney slot
End is provided with screw 36, is provided with second spring 35 between described pin 34 and screw 36；Described sewing machine housing is upper
It is provided with fillister head screw 29 below kidney slot, described fillister head screw 29 stretches in kidney slot, both sides and pin 34
Lean；Using said structure, can will be fixed on housing to guide table, the requirement according to rotational angle simultaneously and the second bullet
Pretightning force between spring 35 and pin 34 realizes the angle change of wire platform.
As shown in figure 5, when using, shift shaft 11 being horizontally through sewing machine housing and realizes fixing, guide table passes through lid
Plate is fixed with sewing machine housing；Then after all parts of needle bar of sewing machine switching mechanism being connected according to said structure description,
The bottom that workman holds shank position control bar 14 is provided with handle part 14a and moves to the left, now shank position control bar
The ladder pin 18 of 14 inner sides is just intercepted the l position of positioning Yu's shank position target by shank changing lever 23, and the control of shank position
Bar 14 processed drivening rod crank lateral movement to the right, drives guide table lateral movement to the left by double threaded screw assembly and double threaded screw,
Now, the guide finger of guide table kidney-shaped in the hole, with guide table lateral movement to the left, drives the conversion crank sidesway to the left of its underpart
Dynamic, push the needle bar of sewing machine positioned at left side, then left side shank quits work, and right side shank is located at the groove of conversion crank
30.1, not depressed power, still can move up and down under the drive of the driving wheel of sewing machine.In the same manner, right side is also identical.This
The said structure of invention is easily easy to operate.
As shown in figure 4, the needle bar of sewing machine structure of the present invention, the horizontal power transmission shaft 50 being wherein connected with two shanks, its
It is in transmission connection with the driving wheel of sewing machine, thus making power transmission shaft 50 drive shank to move up and down by the drive of driving wheel, when
One of shank is in stationary state after being pressed by the conversion crank 30 in shank press component, then now power transmission shaft is just
Another shank not being pressed can only be driven to move up and down, thus realizing the map function of shank；The concrete inside of shank
Structure refers to the application documents of Application No. 200610151828.2, as long as realize shank freely converting under pressing force effect
Realize action or the structure of the sewing machine crosspointer bar being failure to actuate all goes for the present invention.
Claims (3)
1. a kind of needle bar of sewing machine switching mechanism it is characterised in that: include
Shank press component (1), it is used for two shanks in a pair of shank being arranged on sewing machine or any one are entered
Row applies pressing force；
Shank position control assembly (2), its be used in a pair of shank being arranged on sewing machine or two shanks with
Shank press component (1) connects or disengages；
Shank positioning component (3), it is fixed on the housing of sewing machine, for positioning the position of shank position control assembly, real
Show one of during two shanks sewings of sewing machine or two work or do not work；
Described shank press component (1) includes guide table (39), and the side wall of described guide table is provided with limit shaft sleeve
(39.1), the bulb (2c) of the second double threaded screw assembly (2b) in the end of limit shaft sleeve and shank position control assembly (2)
It is connected；Described limit shaft sleeve (39.1) turning set is together in the fixing axle (39.2) being fixed on sewing machine housing, described
The upper bottom being located at limit shaft sleeve (39.1) of fixing axle (39.2) be provided with pad (33), upper positioned at limit shaft sleeve (39.1)
Portion arranges the cover plate (33.1) of its axial displacement restricted；It is provided with waist through hole (39.3) in described guide table (39), lead
To the axially arranged axially extending bore (39.4) having insertion waist through hole of platform, in axially extending bore, the one end near waist through hole is provided with
First pin (38), the other end is provided with the first screw (38.1), is provided with the first bullet between the first pin and the first screw
Spring (37), axially disposed in waist through hole have guide finger (31), and the guide finger left and right sides is leant with the first pin；Guide finger
Lower end be provided with the axis of guide (31.1), the axis of guide is connected with the conversion crank (30) for pressing needle bar of sewing machine upper end；Institute
Through hole with axle (41) fit of needle bar of sewing machine is provided with the conversion crank stated, the described lower surface of conversion crank sets
The energy being equipped with one end open houses the groove (30.1) of needle bar of sewing machine；Described shank position control assembly (2), including 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), 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), the first double threaded screw assembly is connected with the second double threaded screw assembly (2b) by double threaded screw (5)；Described first
Double threaded screw assembly (2a) and the second double threaded screw assembly (2b) are by being arranged at bulb (2c) in head, being threaded hole
Rotate with connecting rod crank or shank press component (1) respectively and be connected；Described shank positioning component (3), including being fixed on sewing
Installing plate (27) on casing body, is provided with shank changing lever (23), shank changing lever is near installing plate outside installing plate
Side be provided with limit shaft (24), limit shaft is sheathed with spring, both ends of the spring respectively with installing plate and shank changing lever
Lean；It is provided with shank position target (20), described shank position control bar (14) outside described shank changing lever
The place end being provided with handle part is located between shank changing lever and shank position target, in described shank position control bar
Side be provided with shank position control bar left and right mobile when lean and realize spacing ladder pin (18) with shank changing lever.
2. needle bar of sewing machine switching mechanism according to claim 1 it is characterised in that: described shank position target (20)
Lateral surface top arranges wired hook (15).
3. needle bar of sewing machine switching mechanism according to claim 1 it is characterised in that: described guide table (39) lower surface
On be provided with kidney slot (39.5), the axially arranged axially extending bore having with kidney slot insertion of guide table (39), described axial direction is led to
Hole is provided with the second pin (34) near one end of kidney slot, the other end is provided with the second screw (36), described the second pin
With second be provided with second spring (35) between screw；Described sewing machine housing is upper to be provided with socket cap below kidney slot
Screw (29), described fillister head screw stretches in kidney slot, both sides are leant with the second pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510083747.2A CN104593958B (en) | 2015-02-16 | 2015-02-16 | Needle-bar switching mechanism for sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510083747.2A CN104593958B (en) | 2015-02-16 | 2015-02-16 | Needle-bar switching mechanism for sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104593958A CN104593958A (en) | 2015-05-06 |
| CN104593958B true CN104593958B (en) | 2017-01-25 |
Family
ID=53119996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510083747.2A Expired - Fee Related CN104593958B (en) | 2015-02-16 | 2015-02-16 | Needle-bar switching mechanism for sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104593958B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105926171B (en) * | 2016-06-23 | 2019-03-12 | 青岛坤宇工艺品有限公司 | A kind of sewing machine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2743521B2 (en) * | 1989-10-14 | 1998-04-22 | ブラザー工業株式会社 | Sewing machine needle bar separation device |
| JP2005348871A (en) * | 2004-06-09 | 2005-12-22 | Juki Corp | Double-needle sewing machine |
| JP2007075253A (en) * | 2005-09-13 | 2007-03-29 | Juki Corp | Single needle switching device |
| IT1391048B1 (en) * | 2008-07-04 | 2011-10-27 | Vi Be Mac Spa | SEWING MACHINE |
| DE102009004219A1 (en) * | 2009-01-09 | 2010-07-15 | Dürkopp Adler AG | Switchable needle bar drive device |
| CN202430454U (en) * | 2011-09-14 | 2012-09-12 | 新杰克缝纫机股份有限公司 | Needle bar of double needle sewing machine and switching mechanism thereof |
| CN204530155U (en) * | 2015-02-16 | 2015-08-05 | 宁波缝纫机实业有限公司 | Needle bar of sewing machine switching mechanism |
-
2015
- 2015-02-16 CN CN201510083747.2A patent/CN104593958B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104593958A (en) | 2015-05-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 315153 Fengjia village, Shiqi street, Haishu District, Ningbo City, Zhejiang Province Patentee after: NINGBO SEWING MACHINE INDUSTRIAL Co.,Ltd. Address before: Yinzhou District Shiqi street in Zhejiang city of Ningbo Province Feng Village 315153 Patentee before: NINGBO SEWING MACHINE INDUSTRIAL Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170125 Termination date: 20210216 |