CN205474374U - Actuating mechanism is united with presser foot to embroidery machine needle bar - Google Patents
Actuating mechanism is united with presser foot to embroidery machine needle bar Download PDFInfo
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- CN205474374U CN205474374U CN201620022712.8U CN201620022712U CN205474374U CN 205474374 U CN205474374 U CN 205474374U CN 201620022712 U CN201620022712 U CN 201620022712U CN 205474374 U CN205474374 U CN 205474374U
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- circular gear
- presser foot
- slide block
- presser feet
- shank
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- 230000008878 coupling Effects 0.000 abstract 7
- 238000010168 coupling process Methods 0.000 abstract 7
- 238000005859 coupling reaction Methods 0.000 abstract 7
- 230000033001 locomotion Effects 0.000 description 16
- 230000008859 change Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- WLRMANUAADYWEA-NWASOUNVSA-N (S)-timolol maleate Chemical compound OC(=O)\C=C/C(O)=O.CC(C)(C)NC[C@H](O)COC1=NSN=C1N1CCOCC1 WLRMANUAADYWEA-NWASOUNVSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009956 embroidering Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model discloses an actuating mechanism is united with presser foot to embroidery machine needle bar. The presser foot of current embroidery machine drives hardly to be avoided strikeing when the slider contacts with the presser foot. The utility model discloses an initiative non -circular gear rigid coupling is on the main shaft to with the rigid coupling at driven epaxial driven non - round gear engagement, the one end of first connecting rod is articulated with driven non -circular gear, and the other end is articulated with first slider, first slider constitutes the sliding pair with the vertical slide rail of frame to with the dead point piece rigid coupling of rigid coupling on the needle bar, the cam rigid coupling is on the main shaft, and the roller is vice with cam constitution cam, the three tip of three connecting rods do not be articulated with the one end of roller, frame and second connecting rod, the other end of second connecting rod is articulated with the presser foot drive block, the vertical setting of needle bar, the spring housing is put on the needle bar, second slider and needle bar constitution sliding pair to pass through spring coupling, second slider and presser foot rigid coupling. The utility model discloses there is not the impact in the time of can realizing the presser foot with the contact of presser foot drive block, in presser foot whereabouts in -process realization smooth transition.
Description
Technical field
This utility model belongs to field of mechanical technique, relates to embroidery machine, is specifically related to a kind of embroidery machine having needle stem
Drive mechanism is combined with presser feet.
Background technology
Computerized emboridering machine is state-of-the-art machinery of embroidering in the present age, and it can make traditional craft embroidery obtain at a high speed
Degree, high efficiency realization, and can also realize manual embroider be beyond one's reach " multi-level, multi-functional,
Uniformity and perfection " requirement.
The main motion of computerized emboridering machine is similar with sewing machine, and main embroidery action is divided into upper thread and bottom line
Motion.And the motion of shank is pumping by certain movement rule.In traditional embroidery machine
Ining succession on shank presser feet, shank is driven motion by needle bar drive device, and presser feet is before shank dropping process
Following period of time is together moved with shank, and separates with the slide block of presser foot drive.And falling
After one section of process, presser feet drives slide block contact with presser feet and determine the motion of presser feet.In this mistake contacted
Journey is difficult to avoid impact due to the reason of design, and this is the major reason causing embroidery machine to vibrate.Institute
Reducing impact with needs when design, this is accomplished by from needle bar drive device or presser foot drive as far as possible
Start with.Needle bar drive device typically now is a six-bar mechanism, and presser foot drive is usually one
Individual cam link mechanism.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, proposes a kind of embroidery machine having needle stem and presser feet
Associating drive mechanism, it is achieved shank kinetic characteristic curve, according to the characteristic curve motion being pre-designed, coordinates
The kinetic characteristic of cam link presser foot drive, thus when reducing presser feet and presser feet driving shoe contact
Speed difference, reduces impact.
In order to achieve the above object, the technical solution adopted in the utility model is:
This utility model includes that non-circular gear-crank block needle bar drive device, shank and presser feet drive machine
Structure；Described non-circular gear-crank block needle bar drive device includes actively non-circular gear, main shaft, driven
Non-circular gear, driven shaft, first connecting rod and the first slide block；Described main shaft and driven shaft all pass through bearing
It is bearing in frame；Described active non-circular gear is fixed on main shaft, and be fixed on driven shaft
Driven non-circular gear engages；One end of described first connecting rod is hinged with driven non-circular gear, the other end and
One slide block is hinged；The upright slide rail of the first described slide block and frame constitutes sliding pair, and be fixed in pin
Dead point block on bar is affixed；Described presser foot drive include cam, roller, three connecting rods, second
Connecting rod, presser feet drive block, spring and the second slide block；Described cam is fixed on main shaft, and roller is with convex
It is secondary that wheel constitutes cam；Three ends of described three connecting rods respectively with the one of roller, frame and second connecting rod
Hold hinged；The other end of second connecting rod is hinged with presser feet drive block；Shank is vertically arranged, and spring is nested with
On shank；Second slide block constitutes sliding pair with shank, and is connected by spring；The second described slide block with
Presser feet is affixed.
The center of rotation of described driven non-circular gear is more than or equal to 5mm to the distance of frame upright slide rail.
This utility model has the beneficial effect that
1, this utility model engaged transmission by non-circular gear, makes the uniform rotation of main shaft through non-knuckle-tooth
Wheel set and the transmission of crank block, band movable slider speed change moves back and forth.Make slide block can realize being pre-designed
Speed characteristic curve motion.
2, meeting the advantage being pre-designed is exactly movement velocity and pin after presser feet drive block contacts with presser feet
The movement velocity of bar is identical, and makes the impact reduction of the presser feet being connected on shank by spring, and has one
In individual the most excessively period, the vibration during mechanism kinematic is made to be minimized with impact.
Accompanying drawing explanation
The principle schematic of Tu1Shi this utility model mechanism；
Fig. 2 is ideal velocity characteristic and the presser feet drive block speed of the first slide block tried to achieve by example calculation
Characteristic curve comparison diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment the utility model is described in further detail.
As it is shown in figure 1, embroidery machine having needle stem combines drive mechanism with presser feet, including non-circular gear-crank block
Needle bar drive device, shank 14 and presser foot drive；Non-circular gear-crank block needle bar drive device
Including actively non-circular gear 1, main shaft 2, driven non-circular gear 3, driven shaft 4, first connecting rod 6 and the
One slide block 7；Main shaft 2 and driven shaft 4 are all bearing in frame 8 by bearing；Actively non-circular gear 1 is solid
It is connected on main shaft 2, and engages with the driven non-circular gear 3 being fixed on driven shaft 4；First connecting rod 6
One end and driven non-circular gear 3 hinged by hinge 5 at pin joint, the other end and the first slide block 7
Hinged；First slide block 7 constitutes sliding pair with the upright slide rail of frame, and dead be fixed on shank 14
Point block is affixed；Driven non-circular gear 3 center of rotation is 5mm to the distance of upright slide rail.Presser feet drives machine
Structure includes cam 9, roller 10, three connecting rods 11, second connecting rod 12, presser feet drive block 13, springs
15 and second slide block 16；Cam 9 is fixed on main shaft 2, and it is secondary that roller 10 and cam constitute cam；Three
Three ends of eye connecting rod 11 are hinged with one end of roller 10, frame 8 and second connecting rod 12 respectively；The
The other end of two connecting rods 12 is hinged with presser feet drive block 13；Shank 14 is vertically arranged, and spring 15 is nested with
On shank；Second slide block 16 and shank constitute sliding pair, and are connected by spring 15；Second slide block
16 is affixed with presser feet.
This embroidery machine having needle stem combines the operation principle of drive mechanism with presser feet:
Main shaft 2 is connected with motor, drives non-circular gear-crank block needle bar drive device and presser feet to drive machine
Structure.In non-circular gear-crank block needle bar drive device, main shaft 2 drives actively non-circular gear uniform rotation；
Actively non-circular gear 1 drives driven non-circular gear 3 to rotate, and driven non-circular gear is carried by first connecting rod 6
Dynamic first slide block 7 pumps.In presser foot drive, cam is driven by main shaft 2, thus convex
The rotation of wheel 9 is synchronize with non-circular gear 1, and cam 9 contacts with roller 10, and roller is hinged on three connecting rods
On 11, so cam 9 rotates the rotation driving three connecting rods 11, three connecting rods 11 drive second connecting rod
12 motions；Second connecting rod 12 drives presser feet drive block 13 to pump.Shank 14 is by dead point block
Affixed with the first slide block 7, keep consistent motion.And the second slide block 16 is connecing with presser feet drive block 13
Touching is synkinematic with shank 14 1 before, and the rear spring 15 of contact is compressed, the second slide block 16 and presser feet
Drive block 13 together moves.The motion of the first slide block 7 is to cooperate with what presser foot drive carried out moving.
This embroidery machine having needle stem combines the method for designing of drive mechanism with presser feet: analyze the fortune of presser foot drive
Dynamic characteristic；The ideal speed curve of the first slide block 7 is obtained by the motion analysis of presser foot drive；Logical
The ideal speed curve crossing the first slide block 7 calculates the pitch curve of noncircular gear pair, thus designs two
Non-circular gear.
The design of non-circular gear pitch curve is that the kinetic characteristic according to the first slide block 7 determines, and first
The design of slide block 7 requires it is to make presser feet and the shank can easy motion meet the demand of thorn cloth.Presser feet drives
Motivation structure drives presser feet drive block 13 to slide up and down, and moving downward in beginning a period of time from peak is
Second slide block 16 is synkinematic with shank 14 1, also means that the second slide block 16 and first during this
The motion of slide block 7 keeps consistent, and after being moved through a period of time presser feet drive block 13 and the second slide block
16 contact, in order to when making contact, presser feet drive block 13 and the second slide block 16 do not produce impact, it is achieved flat
Steady transition, in the case of ensureing again not change the kinetic characteristic of presser feet drive block 13, need to be to the first slide block
The kinetic characteristic of 7 is designed calculating.Thorn cloth in conjunction with shank requires the speed with presser feet drive block 13,
Need to ensure that main shaft 2 corner isPresser feet drive block 13 and time (angle that in Fig. 2, III position is corresponding)
Two slide blocks 16 contact, and then design the speed of the first slide block 7, make to keep consistent with the first slide block 7 and move
The second slide block 16 at main shaft 2 corner beTime speed identical with the speed of presser feet drive block 13, from
And do not produce collision, and main shaft 2 fromStart to turn in the range of 30 ° again, the first slide block 7 with
Presser feet drive block 13 speed is identical, it is achieved smooth transition.Can be obtained by above-mentioned analysis: the speed of the first slide block 7
Write music in line and at main shaft 2 corner beExtremelyIn the range of corresponding speed it has been determined that and presser feet
When drive block 13 contacts with the second slide block 16, the position of the first slide block 7 can determine that according to the length of spring 15,
First slide block 7 is in the position of peak and is in minimum point with corresponding main shaft 2 corner, the first slide block 7
Position and corresponding main shaft 2 corner give according to embroidery machine size.As in figure 2 it is shown, main shaft input
When rotating speed is 600rpm, solid line represents the speed change figure line with main axis of the first slide block 7, and empty
Line represents the presser feet drive block 13 change figure line with main axis, wherein III～IV section be the first slide block 7 with
The speed same section of presser feet drive block 13, II～III section is to presser feet drive block 13 and second from peak
Slide block 16 comes into contact with speed change curves a little, IV～V section of process being to continue downwardly to minimum point,
And V～VI section and I～II section to be stitched together be exactly the rate curve from minimum point to peak.First is sliding
Block 7 I～II section, II～III section, the rate curve of IV～V and V～VI section is respectively by satisfied correspondence
The polynomial function of curved section end-point condition determines.
After the ideal speed curve obtaining the first slide block 7, noncircular gear pair can be determined by reverse
Gear ratio, thus calculate the pitch curve of noncircular gear pair.Ideal speed curve according to the first slide block 7,
The contact position of presser feet drive block 13 and the second slide block 16 determines that the first slide block 7 turns over angle at main shaftAfter
Location, the position of the first slide block 7 and angle of eccentricityConcrete functional relationship can be as shown in Figure 2
The rate curve equation integration of the first slide block 7 obtain, the corner that thus can solve driven non-circular gear closes
In angle of eccentricityThe function expression of (i.e. actively non-circular gear corner), and then calculate non-circular gear
The corner corresponding with driven non-circular gear to footpath of secondary gear ratio, actively non-circular gear correspondence angle of eccentricity
Xiang Jing, and then try to achieve the pitch curve equation of noncircular gear pair.
Claims (2)
1. embroidery machine having needle stem combines drive mechanism with presser feet, drives including non-circular gear-crank block shank
Mechanism, shank and presser foot drive, it is characterised in that: described non-circular gear-crank block shank drives
Motivation structure includes actively non-circular gear, main shaft, driven non-circular gear, driven shaft, first connecting rod and first
Slide block；Described main shaft and driven shaft are all bearing in frame by bearing；Described active non-circular gear
It is fixed on main shaft, and engages with the driven non-circular gear being fixed on driven shaft；Described first connecting rod
One end is hinged with driven non-circular gear, and the other end and the first slide block are hinged；The first described slide block and frame
Upright slide rail constitute sliding pair, and affixed with the dead point block being fixed on shank；Described presser feet drives
Mechanism includes cam, roller, three connecting rods, second connecting rod, presser feet drive block, spring and the second slide block；
Described cam is fixed on main shaft, and it is secondary that roller and cam constitute cam；Three ends of described three connecting rods
Portion is hinged with one end of roller, frame and second connecting rod respectively；The other end of second connecting rod drives with presser feet
Block is hinged；Shank is vertically arranged, and spring is nested with on shank；Second slide block constitutes sliding pair with shank,
And connected by spring；The second described slide block is affixed with presser feet.
Embroidery machine having needle stem the most according to claim 1 combines drive mechanism with presser feet, it is characterised in that:
The center of rotation of described driven non-circular gear is more than or equal to 5mm to the distance of frame upright slide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620022712.8U CN205474374U (en) | 2016-01-11 | 2016-01-11 | Actuating mechanism is united with presser foot to embroidery machine needle bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620022712.8U CN205474374U (en) | 2016-01-11 | 2016-01-11 | Actuating mechanism is united with presser foot to embroidery machine needle bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205474374U true CN205474374U (en) | 2016-08-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620022712.8U Expired - Fee Related CN205474374U (en) | 2016-01-11 | 2016-01-11 | Actuating mechanism is united with presser foot to embroidery machine needle bar |
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| Country | Link |
|---|---|
| CN (1) | CN205474374U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105483951A (en) * | 2016-01-11 | 2016-04-13 | 浙江理工大学 | Embroidery machine needle bar and presser foot combined driving mechanism and design method thereof |
| CN106894177A (en) * | 2017-02-24 | 2017-06-27 | 诸暨市英帕斯机械有限公司 | The shank component and machine head of embroidery machine of a kind of embroidery machine |
| CN106906581A (en) * | 2017-03-20 | 2017-06-30 | 杭州经纬电子机械制造股份有限公司 | A kind of three pin disjunctor presser feets driving, Tai Wei mechanisms and its operating method |
| CN112194041A (en) * | 2020-09-29 | 2021-01-08 | 博众精工科技股份有限公司 | Scissor type lifting device and vehicle lifting platform |
-
2016
- 2016-01-11 CN CN201620022712.8U patent/CN205474374U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105483951A (en) * | 2016-01-11 | 2016-04-13 | 浙江理工大学 | Embroidery machine needle bar and presser foot combined driving mechanism and design method thereof |
| CN105483951B (en) * | 2016-01-11 | 2017-08-22 | 浙江理工大学 | Embroidery machine having needle stem combines drive mechanism and its design method with presser feet |
| CN106894177A (en) * | 2017-02-24 | 2017-06-27 | 诸暨市英帕斯机械有限公司 | The shank component and machine head of embroidery machine of a kind of embroidery machine |
| CN106906581A (en) * | 2017-03-20 | 2017-06-30 | 杭州经纬电子机械制造股份有限公司 | A kind of three pin disjunctor presser feets driving, Tai Wei mechanisms and its operating method |
| CN106906581B (en) * | 2017-03-20 | 2023-05-05 | 杭州经纬电子机械制造股份有限公司 | Three-needle integrated presser foot driving and lifting mechanism and operation method thereof |
| CN112194041A (en) * | 2020-09-29 | 2021-01-08 | 博众精工科技股份有限公司 | Scissor type lifting device and vehicle lifting platform |
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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: 20160817 Termination date: 20180111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |