CN209211062U - A kind of sewing machine and its needle changing device - Google Patents
A kind of sewing machine and its needle changing device Download PDFInfo
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- CN209211062U CN209211062U CN201822070620.9U CN201822070620U CN209211062U CN 209211062 U CN209211062 U CN 209211062U CN 201822070620 U CN201822070620 U CN 201822070620U CN 209211062 U CN209211062 U CN 209211062U
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- needle
- guide sleeve
- shank
- hole
- bar frame
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Abstract
The utility model discloses a kind of sewing machine and its needle changing devices, it include: shank component, needle bar frame, guide sleeve and driving device, guide sleeve is rotatably connected on needle bar frame, guide sleeve is equipped with multiple pilot holes, multiple pilot holes are distributed along the circumferential direction of guide sleeve, and the axis of axis and guide sleeve is parallel to each other, each pilot hole is interspersed with a shank component, shank component, which slides up and down, to be connected in pilot hole, for driving device for driving guide sleeve to rotate on needle bar frame, needle bar frame is equipped with the positioning element for restricted guidance set rotation.When needing some shank component, by starting driving device, rotate guide sleeve, until the shank component of needs rotate in place, the rotation of positioning element locking guide sleeve at this time, to improve the rotation precision of guide sleeve, improve the switching precision of shank component, wherein when switching shank component, guide sleeve rotation, therefore the fairly simple convenience of needle exchange are controlled by starting driving device.
Description
Technical field
The utility model relates to technical field of sewing machines, in particular to a kind of needle changing device further relates to a kind of include above-mentioned
The sewing machine of needle changing device.
Background technique
Existing sewing machine generallys use mold positioning, in several styles when sewing the different colours of the same style
The style of different colours is sewed on machine, or on same pattern sewing machine, after the style for sewing a kind of good color, then thread-changing sewing
Another style of color.Above-mentioned sewing mode causes sewing efficiency lower, additionally, due to the manufacture and position error of mold, meeting
Cause style unsightly.
Therefore, how a kind of needle changing device of sewing machine is provided, is that those skilled in the art are current to improve sewing efficiency
The technical issues that need to address.
Utility model content
In view of this, a purpose of the utility model is to provide a kind of needle changing device, needle exchange efficiency can be effectively improved,
And then sewing efficiency is improved, another purpose is to provide a kind of sewing machine including above-mentioned needle changing device.
To achieve the above object, the utility model provides the following technical solutions:
A kind of needle changing device, comprising: shank component, needle bar frame, guide sleeve and driving device, the guide sleeve rotation connection
On the needle bar frame, the guide sleeve is equipped with multiple pilot holes, and multiple pilot holes are along the circumferential direction side of the guide sleeve
It being parallel to each other to the axis of distribution, and axis and the guide sleeve, each pilot hole is interspersed with the shank component,
The shank component, which slides up and down, to be connected in the pilot hole, and the driving device is for driving the guide sleeve in the needle
It is rotated on pole socket, the needle bar frame is equipped with the positioning element for limiting the guide sleeve rotation.
Preferably, the positioning element includes retaining spring and top and the positioning being arranged on the guide sleeve side wall
Hole, the quantity of the location hole is identical as the quantity of the pilot hole, and one end of the retaining spring is fixed on the needle bar frame
On, the other end is fixedly connected with the top, and the location hole is protruded into the top under the action of retaining spring.
Preferably, the top is that ball-type comes directly towards.
Preferably, the adjusting screw for adjusting the retaining spring pretightning force is additionally provided on the needle bar frame.
Preferably, the driving device includes motor, transmission shaft and driving gear and is arranged on the outside of the guide sleeve
Driven gear on wall, the driven gear are engaged with the driving gear.
Preferably, further include one and slide up and down the actuating sleeve being connected on multiple shank components, the actuating sleeve
It is arranged with drive ring outside, the drive ring and the actuating sleeve are rotatablely connected, and the lateral wall of the drive ring is equipped with along its axis
The drive rod extended to direction.
Preferably, the shank component includes shank set, needle holder, needle road axis, adjustable spring, upper ball and lower ball,
The needle holder is fixed on the lower end of shank set, and the needle road axis is sleeved in the shank set, and upper end is from the needle
Rod set is stretched out, and the both ends of the adjustable spring are pushed against the lower end of the needle road axis and the upper end of the needle holder respectively, described
Needle road axis is equipped with side wall tapered ramp and side wall tapered lower inclined plane downwards upwards, the shank put on be equipped with it is described
The corresponding upper hole location of ramp and lower hole location corresponding with the lower inclined plane, when the needle road axis moves up, it is described on
Ball protrudes from the upper hole location, discharge recessed entrance of the lower ball in the lower inclined plane under the extruding of the ramp
The lower hole location；When the needle road axis moves down, the upper ball is recessed into the upper hole in the discharge of the ramp
Position, the lower ball protrude from the lower hole location under the extruding of the lower inclined plane, and the bottom of the actuating sleeve is equipped with lower card bead
Slot, the upper ball are caught in the lower card bead slot when protruding from the upper hole location, and the top of the pilot hole is equipped with upper card bead
Slot, the lower ball are caught in the upper card bead slot when protruding from the lower hole location.
Preferably, the top of the needle bar frame is equipped with position-arresting disk, the upper end of the needle road axis of the shank component to be converted
It is pushed against the bottom of the position-arresting disk, the position-arresting disk is equipped with through-hole, has converted the needle road axis of the shank component in place
By the through-hole by discharge, needle road axis moves up under the action of the adjustable spring, and the upper ball is caught in described
In lower card bead slot.
Preferably, the guide sleeve includes upper guide sleeve and lower guide sleeve, and the upper card bead slot is arranged in the lower guiding
On the pilot hole of set, the upper guide sleeve is between the position-arresting disk and the lower guide sleeve.
A kind of sewing machine, including needle changing device described in any of the above embodiments.
Compared with prior art, above-mentioned technical proposal has the advantage that
A kind of sewing machine and its needle changing device provided by the utility model, comprising: shank component, needle bar frame, guide sleeve
And driving device, guide sleeve are rotatably connected on needle bar frame, guide sleeve is equipped with multiple pilot holes, and multiple pilot holes are along guide sleeve
Circumferential direction distribution, and the axis of axis and guide sleeve is parallel to each other, and each pilot hole is interspersed with a shank component, shank
Component, which slides up and down, to be connected in pilot hole, and for driving guide sleeve to rotate on needle bar frame, needle bar frame is equipped with driving device
Positioning element for restricted guidance set rotation.When needing some shank component, by starting driving device, turn guide sleeve
It is dynamic, until the shank component of needs rotate in place, the rotation of positioning element locking guide sleeve at this time, to improve guide sleeve
Rotation precision improves the switching precision of shank component, wherein passing through starting driving device control when switching shank component
Needle exchange, therefore the fairly simple convenience of needle exchange can be realized in guide sleeve rotation.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is a kind of schematic view of the front view of needle changing device provided by a kind of specific embodiment of the utility model；
Fig. 2 is a kind of diagrammatic side-view cross-sectional structural representation of needle changing device provided by a kind of specific embodiment of the utility model
Figure；
Fig. 3 is a kind of section view knot of the shank component of needle changing device provided by a kind of specific embodiment of the utility model
Structure schematic diagram；
Fig. 4 shows for a kind of structure of the lower guide sleeve of needle changing device provided by a kind of specific embodiment of the utility model
It is intended to；
Fig. 5 is a kind of structural representation of the actuating sleeve of needle changing device provided by a kind of specific embodiment of the utility model
Figure.
Appended drawing reference is as follows:
1 is needle bar frame, and 2 be lower guide sleeve, and 3 be actuating sleeve, and 4 be drive rod, and 5 be fixing sleeve, and 6 be upper guide sleeve, and 7 be needle
Bar assembly, 7.1 be shank set, and 7.2 be needle holder, and 7.3 be fixing screws, and 7.4 be positioning support pin, and 7.5 be adjustable spring,
7.6 be needle road axis, and 7.7 be upper ball, and 7.8 be guide cylinder, and 7.9 be lower ball, and 8 be mounting screw, and 9 be position-arresting disk, and 9.1 be logical
Hole, 10 be motor, and 11 be transmission shaft, and 12 be driving gear, and 13 be attachment screw, and 14 be fastening screw, and 15 be top, and 16 be fixed
Position spring, 17 is adjust screw, and 18 be pilot hole, and 19 be upper card bead slot, and 20 be location hole, and 21 be lower card bead slot.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-Fig. 5 is please referred to, Fig. 1 is a kind of master of needle changing device provided by a kind of specific embodiment of the utility model
Depending on structural schematic diagram；Fig. 2 is a kind of diagrammatic side-view cross-sectional knot of needle changing device provided by a kind of specific embodiment of the utility model
Structure schematic diagram；Fig. 3 is a kind of section view of the shank component of needle changing device provided by a kind of specific embodiment of the utility model
Structural schematic diagram；Fig. 4 is a kind of knot of the lower guide sleeve of needle changing device provided by a kind of specific embodiment of the utility model
Structure schematic diagram；Fig. 5 shows for a kind of structure of the actuating sleeve of needle changing device provided by a kind of specific embodiment of the utility model
It is intended to.
A kind of needle changing device provided by the utility model embodiment, comprising: shank component 7, needle bar frame 1, guide sleeve and
Driving device, guide sleeve are rotatably connected on needle bar frame 1, and wherein guide sleeve preferably includes the structure of two sections of different-diameters, small end
It is rotatablely connected with needle bar frame 1, big end is located on needle bar frame 1, to play the role of restricted guidance set axial movement, sets on guide sleeve
There are multiple pilot holes 18, multiple pilot holes 18 are distributed along the circumferential direction of guide sleeve, and the axis of axis and guide sleeve is mutually flat
Row, wherein pilot hole 18 is preferably uniformly distributed around the axis of guide sleeve, and each pilot hole 18 is interspersed with a shank component 7, needle
Bar assembly 7, which slides up and down, to be connected in pilot hole 18, and driving device is for driving guide sleeve to rotate on needle bar frame 1, needle bar frame 1
It is equipped with the positioning element for restricted guidance set rotation.When needing some shank component 7, by starting driving device, make
Guide sleeve rotation, until the shank component 7 of needs rotate in place, the rotation of positioning element locking guide sleeve at this time, to mention
The rotation precision of high guide sleeve improves the switching precision of shank component 7, wherein passing through starting when switching shank component 7
Needle exchange, therefore the fairly simple convenience of needle exchange can be realized in driving device control guide sleeve rotation.
Further, positioning element includes retaining spring 16 and top 15 and the location hole being arranged on guide sleeve side wall
20, wherein preferably spherical top 15, top 15, the quantity of location hole 20 is identical as the quantity of pilot hole 18, retaining spring 16
One end is fixed on needle bar frame 1, wherein being arranged on the side wall for the mounting hole that can be used to be rotatablely connected for guide sleeve on needle bar frame 1
Slot, the end of retaining spring 16 are pushed against the inside of slot, and the other end of retaining spring 16 is fixedly connected with top 15, comes directly towards
15 protrude into location hole 20 under the action of retaining spring 16.When for Spherical plug 15, when the position that guide sleeve rotation needs,
Spherical plug 15 can automatically extend into location hole 20, and when rotating guide sleeve again, Spherical plug 15 can be automatically from location hole 20
In skid off, therefore can realize the purpose of automatic positioning, and then improve needle exchange efficiency.
Further, the adjusting screw 17 for adjusting 16 pretightning force of retaining spring is additionally provided on needle bar frame 1.On wherein
Stating slot is preferably through-hole 9.1, and adjusting screw 17 can be screwed into the slot by outside, and one end of spring is pushed against adjusting screw
On 17, it is screwed into screw 17 is adjusted, the pretightning force of retaining spring 16 is bigger,
Specifically, driving device includes motor 10, transmission shaft 11 and driving gear 12 and is arranged in guide sleeve lateral wall
On driven gear, driven gear engages with driving gear 12.Driven gear can be wherein arranged in the outside of guide sleeve big end
On wall, driving gear 12 and driven gear can be fixed by attachment screw 13, secondly the preferred stepper motor of motor 10, and steering can
It, can also be with reciprocating rotation to rotate in one direction always.It should be noted that only excellent by the set rotation of gear band action-oriented
A kind of mode of choosing, can also be used other driving methods to drive, specifically depends on the circumstances.
A kind of needle changing device provided by one embodiment of the utility model further includes one and slides up and down and be connected to
Actuating sleeve 3 on multiple shank components 7, actuating sleeve 3 are arranged with drive ring outside, and drive ring and actuating sleeve 3 are rotatablely connected, drive ring
Lateral wall be equipped with the drive rod 4 that extends along its axial direction.Wherein drive rod 4 can follow drive ring to turn on actuating sleeve 3
Dynamic, in addition to preventing drive ring from moving axially on actuating sleeve 3, actuating sleeve 3 is externally provided with the shaft shoulder, and drive ring is set in driving
It is limited after on set 3 by the shaft shoulder, is then being arranged fixing sleeve 5, the movement of drive ring is limited from axial direction, wherein fixing sleeve
5 can be fixed on actuating sleeve 3 by fastening screw 14.Since drive ring is rotatably connected on actuating sleeve 3, drive rod 4
It is not rotated with the rotation of the runner assembly of shank, so the position of drive rod 4 can remain unchanged after multiple needle exchange.
Further, shank component 7 includes that shank covers 7.1, needle holder 7.2, needle road axis 7.6, adjustable spring 7.5, upper rolling
Pearl 7.7 and lower ball 7.9, needle holder 7.2 are fixed on the lower end of shank set 7.1, and it is fixed specifically can to cover the setting of 7.1 lower ends in shank
Position supporting pin 7.4, positioning support pin 7.4 can extend radially through shank set 7.1 by fixing screws 7.3 and positioning support pin 7.4 is solid
It is scheduled on shank set 7.1, needle holder 7.2 is connected on positioning support pin 7.4 from bottom, and needle road axis 7.6 is sleeved on shank set 7.1
It is interior, and upper end is stretched out from shank set 7.1, wherein for the ease of the sliding of 7.6 upper end of needle road axis, it can be in the upper end of shank set 7.1
Inside setting guide cylinder 7.8, the both ends of adjustable spring 7.5 be pushed against respectively needle road axis 7.6 lower end and needle holder 7.2 it is upper
End, can specifically be pushed against the upper end of positioning support pin 7.4, and needle road axis 7.6 is equipped with side wall upward tapered ramp and side
The downward tapered lower inclined plane of wall, wherein ramp and lower inclined plane are preferably tapered surface, and shank set 7.1 is equipped with opposite with ramp
The upper hole location and lower hole location corresponding with lower inclined plane answered, when needle road axis 7.6 moves up, upper ball 7.7 is squeezed ramp
Pressure protrudes from hole location, and lower ball 7.9 is recessed into lower opening position in the discharge of lower inclined plane；When needle road axis 7.6 moves down, on
Ball 7.7 is recessed into upper hole location in the discharge of ramp, and lower ball 7.9 protrudes from lower hole location under the extruding of lower inclined plane, drives
The bottom of dynamic set 3 is equipped with lower card bead slot 21, and upper ball 7.7 is caught in lower card bead slot 21 when protruding from hole location, pilot hole 18
Top is equipped with upper card bead slot 19, and lower ball 7.9 is caught in card bead slot 19 when protruding from lower hole location.Wherein upper ball 7.7 is under
The quantity of ball 7.9 can be to be multiple, and the circumferencial direction preferably along shank set 7.1 is uniformly distributed.
Further, the top of needle bar frame 1 is equipped with position-arresting disk 9, and specifically needle bar frame 1 includes bottom plate, riser and top plate, erects
The upper and lower ends of plate are separately fixed at the avris of bottom plate and top plate, i.e. top plate constitutes above-mentioned position-arresting disk 9, and wherein position-arresting disk 9 can lead to
It crosses mounting screw 8 to be fixed on the riser of needle bar frame 1, the upper end of the needle road axis 7.6 of shank component 7 to be converted is pushed against limit
The bottom of disk 9, position-arresting disk 9 are equipped with through-hole 9.1, and the needle road axis 7.6 for having converted shank component 7 in place passes through 9.1 quilt of through-hole
Discharge, needle road axis 7.6 move up under the action of adjustable spring 7.5, and upper ball 7.7 is caught in lower card bead slot 21.Pass through
The through-hole 9.1 being arranged on position-arresting disk 9 can be such that the shank component 7 converted in place moves down automatically, while can realize shank component
7 with the automatic clamping of actuating sleeve 3, therefore transfer efficiency can be improved.
Specifically, guide sleeve includes upper guide sleeve 6 and lower guide sleeve 2, and the guiding of lower guide sleeve 2 is arranged in upper card bead slot 19
On hole 18, upper guide sleeve 6 is located between position-arresting disk 9 and lower guide sleeve 2.I.e. needle bar frame 1 is E font structure, and lower guide sleeve 2 is arranged
In 1 bottom of needle bar frame, the upper setting of guide sleeve 6 also is provided with driven gear on the outside of 1 middle part of needle bar frame, upper guide holder, accordingly
A driving gear 12 is additionally provided on transmission shaft 11, therefore two driven gears can realize synchronous rotation, to improve shank component 7
Conversion stability.
One embodiment of the utility model additionally provides a kind of sewing machine, the needle exchange provided including any of the above-described embodiment
Device.Its advantages refer to above-mentioned needle changing device, and details are not described herein again.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
A kind of sewing machine provided by the utility model and its needle changing device are described in detail above.It answers herein
The principles of the present invention and embodiment are expounded with specific case, the explanation of above example is only intended to sides
Assistant solves the method and its core concept of the utility model.It should be pointed out that for those skilled in the art,
Without departing from the principle of this utility model, several improvements and modifications can be made to this utility model, these improvement
It is also fallen into the protection scope of the utility model claims with modification.
Claims (10)
1. a kind of needle changing device characterized by comprising shank component, needle bar frame, guide sleeve and driving device, the guiding
Set is rotatably connected on the needle bar frame, and the guide sleeve is equipped with multiple pilot holes, and multiple pilot holes are along the guiding
The circumferential direction of set is distributed, and the axis of axis and the guide sleeve is parallel to each other, and each pilot hole is interspersed with an institute
Shank component is stated, the shank component, which slides up and down, to be connected in the pilot hole, and the driving device is for driving described lead
It is rotated on the needle bar frame to covering, the needle bar frame is equipped with the positioning element for limiting the guide sleeve rotation.
2. needle changing device according to claim 1, which is characterized in that the positioning element include retaining spring and top with
And the location hole on the guide sleeve side wall is set, the quantity of the location hole is identical as the quantity of the pilot hole, described
One end of retaining spring is fixed on the needle bar frame, and the other end is fixedly connected with the top, and the top is in the positioning
The location hole is protruded under the action of spring.
3. needle changing device according to claim 2, which is characterized in that the top is that ball-type comes directly towards.
4. needle changing device according to claim 3, which is characterized in that it is described fixed for adjusting to be additionally provided on the needle bar frame
The adjusting screw of position initial tension of spring.
5. needle changing device according to claim 4, which is characterized in that the driving device includes motor, transmission shaft and master
Moving gear and the driven gear being arranged on the guide sleeve lateral wall, the driven gear are engaged with the driving gear.
6. needle changing device according to any one of claims 1 to 5, which is characterized in that further include one and slide up and down connection
Actuating sleeve on multiple shank components, the actuating sleeve are arranged with drive ring, the drive ring and the actuating sleeve outside
Rotation connection, the lateral wall of the drive ring are equipped with the drive rod extended along its axial direction.
7. needle changing device according to claim 6, which is characterized in that the shank component includes shank set, needle holder, needle
Bar axis, adjustable spring, upper ball and lower ball, the needle holder are fixed on the lower end of the shank set, the needle road axis suit
In shank set, and upper end covers from the shank and stretches out, and the both ends of the adjustable spring are pushed against the needle road axis respectively
Lower end and the needle holder upper end, the needle road axis is equipped with side wall, and tapered ramp and side wall is tapered downwards upwards
Lower inclined plane, the shank, which is put on, is equipped with upper hole location corresponding with the ramp and lower opening corresponding with the lower inclined plane
Position, when the needle road axis moves up, the upper ball protrudes from the upper hole location under the extruding of the ramp, under described
Ball is recessed into the lower hole location in the discharge of the lower inclined plane；When the needle road axis moves down, the upper ball is in institute
The discharge for stating ramp is recessed into the upper hole location, and the lower ball protrudes from the lower opening under the extruding of the lower inclined plane
The bottom of position, the actuating sleeve is equipped with lower card bead slot, and the upper ball is caught in the lower card bead slot when protruding from the upper hole location
In, the top of the pilot hole is equipped with upper card bead slot, and the lower ball is caught in the upper card bead slot when protruding from the lower hole location
In.
8. needle changing device according to claim 7, which is characterized in that the top of the needle bar frame is equipped with position-arresting disk, wait turn
The upper end of the needle road axis of the shank component changed is pushed against the bottom of the position-arresting disk, and the position-arresting disk is equipped with through-hole,
The needle road axis of the shank component of conversion in place is by the through-hole by discharge, effect of the needle road axis in the adjustable spring
Under move up, the upper ball is caught in the lower card bead slot.
9. needle changing device according to claim 8, which is characterized in that the guide sleeve includes upper guide sleeve and lower guiding
Set, the upper card bead slot is arranged on the pilot hole of the lower guide sleeve, and the upper guide sleeve is located at the position-arresting disk and described
Between lower guide sleeve.
10. a kind of sewing machine, which is characterized in that including the described in any item needle changing devices of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822070620.9U CN209211062U (en) | 2018-12-10 | 2018-12-10 | A kind of sewing machine and its needle changing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822070620.9U CN209211062U (en) | 2018-12-10 | 2018-12-10 | A kind of sewing machine and its needle changing device |
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| Publication Number | Publication Date |
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| CN209211062U true CN209211062U (en) | 2019-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822070620.9U Active CN209211062U (en) | 2018-12-10 | 2018-12-10 | A kind of sewing machine and its needle changing device |
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| CN (1) | CN209211062U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110682007A (en) * | 2019-09-11 | 2020-01-14 | 芜湖德锐电子技术有限公司 | Cutting device for chip processing |
-
2018
- 2018-12-10 CN CN201822070620.9U patent/CN209211062U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110682007A (en) * | 2019-09-11 | 2020-01-14 | 芜湖德锐电子技术有限公司 | Cutting device for chip processing |
| CN110682007B (en) * | 2019-09-11 | 2021-12-17 | 前海晶方云(深圳)测试设备有限公司 | Cutting device for chip processing |
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Address after: 318000 no.1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318010 No. 15 Airport South Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: JACK SEWING MACHINE Co.,Ltd. |