CN208104725U - A kind of mechanism of adjustable needle bar stroke - Google Patents
A kind of mechanism of adjustable needle bar stroke Download PDFInfo
- Publication number
- CN208104725U CN208104725U CN201820431337.1U CN201820431337U CN208104725U CN 208104725 U CN208104725 U CN 208104725U CN 201820431337 U CN201820431337 U CN 201820431337U CN 208104725 U CN208104725 U CN 208104725U
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- crank
- hole
- adjuster
- needle bar
- shank
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Abstract
The utility model relates to sewing machine fields, disclose a kind of mechanism of adjustable needle bar stroke, including crank (3), it further include crank adjuster (6), crank adjuster (6) includes chuck (62) and rotating block (61), chuck (62) is equipped with rotating block (61), chuck (62) is equipped at least one bayonet (621), crank (3) is equipped with positioning pin (32), and positioning pin (32) is caught in bayonet (621) when crank adjuster (6) is connect with crank (3).Crank adjuster (6) further includes mounting post (63), mounting post (63) is arranged on chuck (62), crank (3) is equipped with the first mounting hole (31), and mounting post (63) setting is in the first mounting hole (31) when crank adjuster (6) is connect with crank (3).The utility model has the advantages that sewing easy to adjust, that a variety of needle bar strokes are adjusted, adapt to a variety of sewings, easy to operate.
Description
Technical field
The utility model relates to sewing machine fields, more particularly to a kind of mechanism of adjustable needle bar stroke.
Background technique
Conventional sewing machine, which adjusts needle bar stroke all and is, changes the center of crank adjuster away from therefore different needle bar stroke needs
A variety of crank adjusters are corresponded to, when needing to adjust needle bar stroke for different sewings, crank adjuster are carried out more
It changes, trouble is dismantled in replacement process, it is not easy to adjust, and waste the physical demands of staff.
Utility model content
The utility model adjusts the disadvantage of trouble for needle bar stroke in the prior art, provides a kind of adjustable shank row
The mechanism of journey.
In order to solve the above-mentioned technical problem, the utility model is addressed by following technical proposals：
A kind of mechanism of adjustable needle bar stroke, including crank, further include crank adjuster, and crank adjuster includes chuck
And rotating block, chuck are equipped with rotating block, chuck is equipped at least one bayonet, and crank is equipped with positioning pin, crank adjuster
Positioning pin is caught in bayonet when connecting with crank.
Preferably, crank adjuster further includes mounting post, mounting post is arranged on chuck, and crank is equipped with the first installation
Hole, mounting post is arranged in the first mounting hole when crank adjuster is connect with crank.
Preferably, further include casing and upper axis, casing is equipped with upper axis, and crank is equipped with the second mounting hole, upper axis with
Upper axis is arranged in the second mounting hole when crank connects.
Preferably, further including shank connecting rod, connecting column and shank, shank connecting rod is equipped with first through hole and second and leads to
Hole, rotating block are arranged in first through hole, drive shank connecting rod to move up and down when rotating block rotates in first through hole, connecting column
Across the second through-hole, shank is connect after passing through casing with connecting column.
Preferably, casing is equipped with third through-hole, connecting column is equipped with fourth hole, and shank is extended back across third through-hole
Enter in fourth hole.
Preferably, shank connecting rod includes upper bush, connecting rod and lower sleeve, upper bush and lower sleeve are separately positioned on company
The both ends of extension bar, first through hole are arranged on upper bush, and the second through-hole is arranged on lower sleeve.
Preferably, further including screw and gasket, crank adjuster is equipped with screw hole, and screw passes through gasket and screw hole
Connection, gasket are contacted with shank connecting rod.
Preferably, further including servo motor, servo motor drives upper axis rotation.
The utility model has significant technical effect due to using above technical scheme：Pass through crank adjuster
Rotation, is converted to shank in the up and down motion of certain stroke range, by that will position pin card for the rotary motion of crank adjuster
Enter the mode of the bayonet of crank adjuster, adjust shank connecting rod moves up and down stroke, to adjust the stroke of shank, has and adjusts
Section is convenient, a variety of needle bar strokes is adjusted, the sewing of a variety of sewings of adaptation, advantage easy to operate, does not need frequent demountor
Device reduces the physical demands of staff.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the partial enlarged view of A.
Fig. 3 is the structural schematic diagram of crank.
Fig. 4 is the structural schematic diagram of shank connecting rod.
Fig. 5 is the structural schematic diagram of crank adjuster.
Fig. 6 is the structural schematic diagram of connecting column.
Fig. 7 is structural schematic diagram when crank is connected with crank adjuster.
The toponym that each number designation is referred in the figures above is as follows：Wherein,
1-casing, 11-third through-holes, 2-upper axis, 3-cranks, the 31-the first mounting hole, 32-positioning pins, 33-the
Two mounting holes, 4-shanks, 5-shank connecting rods, 51-upper bushes, 52-first through hole, 53-connecting rods, 54-lower sleeves,
55-the second through-hole, 6-crank adjusters, 61-rotating blocks, 611-screw holes, 62-chucks, 621-bayonets, 63-installations
Column, 7-gaskets, 8-screws, 9-connecting columns, 91-fourth holes.
Specific embodiment
The utility model is described in further detail with embodiment with reference to the accompanying drawing.
Embodiment 1
A kind of mechanism of adjustable needle bar stroke, as shown in figs. 1-7, including crank 3, it further include crank adjuster 6, crank
Adjuster 6 includes chuck 62 and rotating block 61, and chuck 62 is equipped with rotating block 61, sets that there are three bayonet 621, cranks on chuck 62
3 are equipped with positioning pin 32, and positioning pin 32 is caught in bayonet 621 when crank adjuster 6 is connect with crank 3.Crank adjuster 6 also wraps
Mounting post 63 is included, mounting post 63 is arranged on chuck 62, and crank 3 is equipped with the first mounting hole 31, crank adjuster 6 and crank 3
Mounting post 63 is arranged in the first mounting hole 31 when connection.
It further include casing 1 and upper axis 2, casing 1 is equipped with upper axis 2, and crank 3 is equipped with the second mounting hole 33, upper axis 2 and song
Upper axis 2 is arranged in the second mounting hole 33 when handle 3 connects.
It further include shank connecting rod 5, connecting column 9 and shank 4, shank connecting rod 5 is equipped with first through hole 52 and the second through-hole 55,
Rotating block 61 is arranged in first through hole 52, drives shank connecting rod 5 to move up and down when rotating block 61 rotates in first through hole 52,
Connecting column 9 passes through the second through-hole 55, and shank 4 is connect after passing through casing 1 with connecting column 9.Casing 1 is equipped with third through-hole 11, even
Column 9 is connect equipped with fourth hole 91, shank 4 protrudes into fourth hole 91 after passing through third through-hole 11.Shank connecting rod 5 includes upper set
Cylinder 51, connecting rod 53 and lower sleeve 54, upper bush 51 and lower sleeve 54 are separately positioned on the both ends of connecting rod 53, first through hole 52
It is arranged on upper bush 51, the second through-hole 55 is arranged on lower sleeve 54.
It further include screw 8 and gasket 7, crank adjuster 6 is equipped with screw hole 611, and screw 8 passes through gasket 7 and screw hole
611 connections, gasket 7 are contacted with shank connecting rod 5.It further include servo motor, servo motor drives upper axis 2 to rotate.
The course of work is as follows：Bayonet 621 on crank adjuster 6 is caught in positioning pin 32, thus make crank adjuster 6 with
Crank 3 connects；Servo motor drives upper axis 2 to rotate, and upper axis 2 drives crank 3 to rotate, and crank 3 drives crank adjuster 6 to rotate,
Rotating block 61 on crank adjuster 6 rotates in the first through hole 52 on shank connecting rod 5, when crank adjuster 6 rotates, turns
Motion block 61 touches the upper and lower ends of 52 wall of first through hole, so that rotating block 61 drives shank connecting rod 5 to move up and down, shank connecting rod
5 drive shank 4 to move up and down by connecting column 9.
It is caught in due to positioning pin 32 in different bayonets 621, will lead to center and change away from D, thus rotating block 61
Rotation amplitude can change, so that the stroke that moves up and down of shank 4 be made to change, therefore can be adjusted by crank adjuster 6
The stroke of markingoff pin bar 4, to adapt to the sewing of different sewings.
Embodiment 2
With embodiment 1, except that setting on chuck 62, there are five bayonets 621.
In short, the above is only the preferred embodiment of the present invention, it is all according to present utility model application the scope of the patents institute
The equivalent changes and modifications of work should all belong to the covering scope of the utility model patent.
Claims (8)
1. a kind of mechanism of adjustable needle bar stroke, including crank (3), it is characterised in that：It further include crank adjuster (6), it is bent
Handle adjuster (6) includes chuck (62) and rotating block (61), and chuck (62) is equipped with rotating block (61), and chuck (62) is equipped with extremely
A few bayonet (621), crank (3) are equipped with positioning pin (32), positioning pin when crank adjuster (6) is connect with crank (3)
(32) it is caught in bayonet (621).
2. a kind of mechanism of adjustable needle bar stroke according to claim 1, it is characterised in that：Crank adjuster (6) is also
Including mounting post (63), mounting post (63) is arranged on chuck (62), and crank (3) is equipped with the first mounting hole (31), crank tune
Mounting post (63) is arranged in the first mounting hole (31) when section device (6) is connect with crank (3).
3. a kind of mechanism of adjustable needle bar stroke according to claim 1, it is characterised in that：Further include casing (1) and
Upper axis (2), casing (1) are equipped with upper axis (2), and crank (3) is equipped with the second mounting hole (33), and upper axis (2) connect with crank (3)
When on axis (2) setting in the second mounting hole (33).
4. a kind of mechanism of adjustable needle bar stroke according to claim 3, it is characterised in that：It further include shank connecting rod
(5), connecting column (9) and shank (4), shank connecting rod (5) are equipped with first through hole (52) and the second through-hole (55), rotating block (61)
In first through hole (52), rotating block (61) drives shank connecting rod (5) to move up and down in first through hole (52) when rotation for setting,
Connecting column (9) passes through the second through-hole (55), and shank (4) passes through casing (1) and connect afterwards with connecting column (9).
5. a kind of mechanism of adjustable needle bar stroke according to claim 4, it is characterised in that：Casing (1) is equipped with the
Three through-holes (11), connecting column (9) are equipped with fourth hole (91), and shank (4) protrudes into fourth hole after passing through third through-hole (11)
(91) in.
6. a kind of mechanism of adjustable needle bar stroke according to claim 4, it is characterised in that：Shank connecting rod (5) includes
Upper bush (51), connecting rod (53) and lower sleeve (54), upper bush (51) and lower sleeve (54) are separately positioned on connecting rod (53)
Both ends, first through hole (52) be arranged on upper bush (51), the second through-hole (55) be arranged on lower sleeve (54).
7. a kind of mechanism of adjustable needle bar stroke according to claim 4, it is characterised in that：Further include screw (8) and
Gasket (7), crank adjuster (6) are equipped with screw hole (611), and screw (8) passes through gasket (7) and connect with screw hole (611), pad
Piece (7) is contacted with shank connecting rod (5).
8. a kind of mechanism of adjustable needle bar stroke according to claim 3, it is characterised in that：It further include servo motor,
Servo motor drives upper axis (2) rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820431337.1U CN208104725U (en) | 2018-03-28 | 2018-03-28 | A kind of mechanism of adjustable needle bar stroke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820431337.1U CN208104725U (en) | 2018-03-28 | 2018-03-28 | A kind of mechanism of adjustable needle bar stroke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208104725U true CN208104725U (en) | 2018-11-16 |
Family
ID=64123069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820431337.1U Active CN208104725U (en) | 2018-03-28 | 2018-03-28 | A kind of mechanism of adjustable needle bar stroke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208104725U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109972308A (en) * | 2019-04-11 | 2019-07-05 | 杰克缝纫机股份有限公司 | A kind of needle bar stroke adjustment structure and its sewing machine and stroke adjustment method |
| CN110983662A (en) * | 2019-12-23 | 2020-04-10 | 拓卡奔马机电科技有限公司 | Cloth-needling mechanism and sewing equipment with same |
-
2018
- 2018-03-28 CN CN201820431337.1U patent/CN208104725U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109972308A (en) * | 2019-04-11 | 2019-07-05 | 杰克缝纫机股份有限公司 | A kind of needle bar stroke adjustment structure and its sewing machine and stroke adjustment method |
| CN109972308B (en) * | 2019-04-11 | 2021-11-02 | 杰克缝纫机股份有限公司 | Needle bar stroke adjusting structure, sewing machine with needle bar stroke adjusting structure and stroke adjusting method |
| CN110983662A (en) * | 2019-12-23 | 2020-04-10 | 拓卡奔马机电科技有限公司 | Cloth-needling mechanism and sewing equipment with same |
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