CN203187955U - Independent press foot mechanism for head of embroidery machine - Google Patents
Independent press foot mechanism for head of embroidery machine Download PDFInfo
- Publication number
- CN203187955U CN203187955U CN 201320145997 CN201320145997U CN203187955U CN 203187955 U CN203187955 U CN 203187955U CN 201320145997 CN201320145997 CN 201320145997 CN 201320145997 U CN201320145997 U CN 201320145997U CN 203187955 U CN203187955 U CN 203187955U
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- presser feet
- slide block
- sliding sleeve
- ring
- axle
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Abstract
The utility model discloses an independent press foot mechanism for a head of an embroidery machine. The head of the embroidery machine comprises a casing, a vertical shaft, a needle bar drive slider, a press foot lift slider, a needle bar drive slider driving mechanism and a press foot lift slider driving mechanism, wherein the needle bar drive slider and the press foot lift slider are slidably sleeved on the vertical shaft. The independent press foot mechanism comprises a press foot, a press foot shaft, a shaft sleeve, a lower retainer ring, a spring, a spring sliding sleeve, an upper retainer ring and a spring sliding sleeve driving mechanism. The press foot is fixed at the lower end of the press foot shaft, and the press foot shaft is nested in the shaft sleeve; the shaft sleeve, the lower retainer ring, the spring, the spring sliding sleeve and the upper retainer ring are sequentially sleeved on the press foot shaft from bottom to top; the shaft sleeve is connected with the press foot lift slider; the upper end and lower end of the spring are respectively pressed against the spring sliding sleeve and the lower retainer ring; the upper retainer ring and the lower retainer ring are fixedly connected with the press foot shaft, and the spring sliding sleeve driving mechanism drives the spring sliding sleeve to move upwards and downwards. The stroke of the press foot of the independent press foot mechanism is not affected by that of a needle bar, thereby reducing the load of a main shaft of the embroidery machine, and reducing the noise.
Description
Technical field
The utility model relates to the presser foot of embroidery machine head.
Background technology
With reference to figure 1 and Fig. 2.Existing embroidery machine is made up of a plurality of heads, and each head 100a is furnished with a needle bar frame 80a, and each needle bar frame 80a is provided with among the many shank 81a(figure and only illustrates one as example), every shank is provided with eedle 82a and presser feet 83a.Shank 81a drives presser feet 83a by presser feet spring 84a and is pressed on the cloth, and the lifting of presser feet 83a mainly drives by shank.Fig. 3 shows the internal structure of head, and its shank that comprises that mainly casing 21a, vertical pivot 31a, shank driving slide block 41a, presser feet lifting slide block 51a, driving shank driving slide block 41a move up and down drives the slide block driving mechanism and drives the presser feet lifting slide block driving mechanism that presser feet lifting slide block 51a moves up and down.Shank drives slide block 41a and presser feet lifting slide block 51a all is set on the vertical pivot 31a slidably.Wherein, shank driving slide block driving mechanism comprises cam pack 411a, big connecting rod 412a, three hole connecting rod 413a and two hole connecting rod 414a.Presser feet lifting slide block driving mechanism comprises presser feet lifting cam 511a, crank connecting link 512a and two hole connecting rod 514a.
The operation principle of above-mentioned head is roughly as follows: when spindle motor drive main shaft 70a clockwise rotates, cam pack 411a, presser feet lifting cam 511a rotates thereupon, cam pack 411a drives big connecting rod 412a, three hole connecting rod 413a move reciprocatingly, pass through the transmission of two hole connecting rod 414a again, driving shank driving slide block 41a pumps, presser feet lifting cam 511a drives crank connecting link 512a and moves reciprocatingly, pass through the transmission of two hole connecting rod 514a again, driving presser feet lifting slide block 51a does and pumps, then drive shank, presser feet, eedle moves up and down, thereby cooperates rotating shuttle to finish the embroidery action.The about 30mm of the stroke of presser feet during this time, the about 25mm of the decrement of presser feet spring, presser feet lifting slide block 51a only play the effect of lifting part presser feet stroke, in order to reducing noise, but stressed bigger.
Mainly there is following shortcoming in said structure:
1, the presser feet height is uncontrollable: the presser feet height of existing embroidery machine head is determined by uncertain factors such as cushion pad, felts, and an embroidery machine has more than 100 such presser feet, so can not accurately regulate at any time, be difficult to be suitable for simultaneously the different fabric of thickness to the specific (special) requirements of presser feet height, pressure etc.;
2, noise is big: owing to be subjected to the restriction of needle bar stroke, the have an appointment stroke of 30mm of presser feet causes the excessive compression shock of presser feet, and noise is very big when causing embroidery machine to run up;
3, motor load is not steady: stroke is too big during owing to the presser feet compress, tens very big opposing torques of the common generation of head during the spring pressurized, strengthened canonical loading, hinder the rotation of main shaft, spring produces very big forward moment again when discharging, accelerate the rotation of main shaft, caused the suffered moment of motor extremely unbalanced, thereby hindered the high-speed smooth running of motor;
4, rapid wear: because the reaction force acts of spring is in transmission mechanisms such as slide block, connecting rod and cams, cause these transmission mechanism accelerated wear test, add consumable accessorys such as presser feet sliding sleeve, packing ring, cause the stability decreases of machine operation, so often need these parts be changed, maintain;
5, the embroidery quality is impacted: because presser feet height, uncertainty all around, the unnecessary stroke pressure of spring in addition can produce in various degree impact, influence embroidery quality to fabric.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of independent presser foot device of embroidery machine head, the presser feet stroke of this independent presser foot device is not subjected to the influence of needle bar stroke, thereby be convenient to adopt the presser feet lifting cam of small eccentricity amount, with the main shaft load of the mechanism that reduces to embroider, reduce work noise.
The technical scheme that the utility model adopts is: a kind of independent presser foot device of embroidery machine head, the embroidery machine head comprises that the shank that casing, vertical pivot, shank driving slide block, presser feet lifting slide block, driving shank driving slide block move up and down drives the slide block driving mechanism and drives the presser feet lifting slide block driving mechanism that presser feet lifting slide block moves up and down, and shank driving slide block and presser feet lifting slide block all are set on the vertical pivot slidably; Be characterized in that independent presser foot device comprises presser feet, presser feet axle, axle sleeve, following back-up ring, spring, spring sliding sleeve, goes up back-up ring and spring sliding sleeve driving mechanism; Presser feet is fixed on the lower end of presser feet axle, and the presser feet axle is set in the axle sleeve, and can move up and down; Axle sleeve, following back-up ring, spring, spring sliding sleeve and last back-up ring are set on the presser feet axle from bottom to up in regular turn; Axle sleeve links to each other with presser feet lifting slide block; The top and bottom of spring are against respectively on spring sliding sleeve and the following back-up ring; Following back-up ring is fixedlyed connected with the presser feet axle with last back-up ring, and spring sliding sleeve driving mechanism is used for the driving spring sliding sleeve and moves up and down along the presser feet axle.
The utlity model has following advantage:
1, because presser foot is independent, the stroke of presser feet no longer is subjected to the influence of needle bar stroke, thereby be convenient to adopt small eccentricity piezometric pin lifting cam, make the stroke of presser feet less than the presser feet of prior art, greatly reduced main shaft load, slowed down spring pressure, alleviate the impact to the parts that run up, motor be can smoothly high-speed operate, alleviated the impact to fabric simultaneously, reduce noise, increased operational reliability;
2. one group of head of the present utility model only has a presser feet, and the convenient presser feet height of in time accurately regulating has greatly improved the adaptive capacity that embroidery machine requires difference thick, the sake material;
3, by with the pre-compressive strain of spring, reduced the decrement of spring, made little electric current electromagnet High-speed Control become possibility; In addition; owing to be provided with and drive the second inconsistent projection of first projection on the slider side wall with shank at the sidewall of spring sliding sleeve; when shank drives slide block down; it is descending to drive presser feet automatically; thereby the self-protection under the situations such as the shutdown that can realize cutting off the power supply, electromagnet are malfunctioning, it is impaired that shank bumps against the equipment that presser feet causes when avoiding because of improper running.
Description of drawings
Fig. 1 is that the master of a head of existing embroidery machine looks schematic diagram.
Fig. 2 is the schematic side view of Fig. 1.
Fig. 3 is that the axle of the casing internal structure of existing embroidery machine head is surveyed schematic diagram.
Fig. 4 is the schematic side view according to a head of the embroidery machine of the utility model one embodiment.
Fig. 5 surveys schematic diagram according to the casing internal structure axle of a head of the embroidery machine of the utility model one embodiment.
Fig. 6 is the casing internal structure schematic side view according to a head of the embroidery machine of the utility model one embodiment.
Fig. 7 is the local enlarged diagram according to the presser foot device of the embroidery machine of the utility model one embodiment.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is made and to further specify.
With reference to figure 4 to Fig. 7.Embroidery machine head according to the utility model one embodiment comprises that the shank that casing 21, vertical pivot 31, shank driving slide block 41, presser feet lifting slide block 51, driving shank driving slide block move up and down drives the slide block driving mechanism and drives the presser feet lifting slide block driving mechanism that presser feet lifting slide block moves up and down.Shank drives slide block 41 and presser feet lifting slide block 51 all is set on the vertical pivot 31 slidably.Wherein, shank driving slide block driving mechanism comprises cam pack 411, big connecting rod 412, three hole connecting rods 413 and two hole connecting rods 414.Presser feet lifting slide block driving mechanism comprises presser feet lifting cam 511, crank connecting link 512 and two hole connecting rods 514.Cam pack 411 and presser feet lifting cam 511 all are set on the main shaft 70 of embroidering machine head.Also show needle bar frame 80 among the figure and be arranged on shank 81 on the needle bar frame 80.
Axle sleeve 13, following back-up ring 14, spring 15, spring sliding sleeve 16 and last back-up ring 17 are set on the presser feet axle 12 from bottom to up in regular turn.Axle sleeve 13 links to each other with presser feet lifting slide block 51.The top and bottom of spring 15 are against respectively on spring sliding sleeve 15 and the following back-up ring 14, and preferably, spring 15 has pre-compressive strain.The sidewall that shank drives slide block 41 is provided with first projection 416, the sidewall of spring sliding sleeve 16 be provided with can be inconsistent with first projection 416 second projection 166.Shut down in outage, electromagnet is malfunctioning etc. under the situation, when shank drives slide block 41 when descending, it is descending to drive presser feet 11 automatically, and it is impaired that shank bumps against the equipment that presser feet causes when avoiding because of improper running.
Following back-up ring 14 is fixedlyed connected with presser feet axle 12 with last back-up ring 17, and spring sliding sleeve driving mechanism is used for driving spring sliding sleeve 16 and moves up and down along presser feet axle 12.
In a kind of preferred embodiment, this spring sliding sleeve driving mechanism comprises electromagnet 181 and shift fork 185; Shift fork 185 comprises jaw portion 186 and fork-tail portion 188.Jaw portion 186 has a prong 187, and the outer wall of spring sliding sleeve 16 is provided with a slide block 161, and this slide block 161 is embedded in the prong 187 of shift fork.Fork-tail portion 188 is connected with the iron core 182 of electromagnet.Casing 21 is provided with a guide plate 210, and guide plate 210 is provided with first gathering sill 211 and second gathering sill, 212, the first gathering sills 211 and second gathering sill 212 and vertically extends.Following back-up ring 14 is provided with a projection 141, and slide block 161 is embedded in first gathering sill 211, and the projection 141 of following back-up ring is embedded in second gathering sill 212, thereby can prevent that presser feet axle 12 and spring sliding sleeve 16 from rotating.Preferably, electromagnet 181 is two-way self-sustaining electromagnet.
In another embodiment, this spring sliding sleeve driving mechanism can also adopt mechanisms such as cylinder, motor.
This independent presser foot device also comprises first packing ring 191 and second packing ring 192, this first packing ring 191 and second packing ring 192 all are set on the presser feet axle 12, first packing ring 191 is positioned at the top of back-up ring 17, and second packing ring 192 is between spring sliding sleeve 16 and last back-up ring 17.
The course of work of the present utility model is roughly as follows: before spindle motor rotates, electromagnet 181 downward adhesives, it is descending to drive spring sliding sleeve 16 by shift fork 185, spring sliding sleeve 16 promotes down by spring 15, and back-up ring 14 moves downward, because down back-up ring 14 is fixedlyed connected with presser feet axle 12 with last back-up ring 17, thereby drive presser feet axle 12 moves downward with last back-up ring 17.When back-up ring 14 propped up axle sleeve 13 instantly, presser feet 11 walked to the parking stall, and spring sliding sleeve 16 compression springs 15 continue descending 5mm, to guarantee and to move to the next reliable distance of shank driving slide block 41 reservations.Main shaft 70 clockwise rotates under driven by motor, drives shanks driving slide blocks 41 and pumps together with shank, eedle by cam pack 411 drive big connecting rods 412, three hole connecting rods 413, two hole connecting rods 414.Simultaneously, presser feet lifting cam 511 drives crank connecting link 512,514 motions of two hole connecting rods, drives presser feet lifting slide block 51 promotion presser feets and moves up and down in the 8mm scope, thereby cooperate shank, and rotating shuttle is finished the embroidery action.After embroidery finished, electromagnet 181 upwards adhesives made spring sliding sleeve 16 promote presser feet axle 12 by fork 185 and are up to highest order, drive the about 20mm of pressure foot lifting to upper.Owing to use independent presser feet design, when making the presser feet realization accurate adjustable, stroke has been reduced to below the 8mm by original 30mm, and amount of spring compression has also been reduced to below the 8mm by original 25mm.Alleviate the impact that presser feet, spring cause main shaft, transmission mechanism and fabric greatly, thereby reached the purpose that reduces noise, improves the speed of service and reliability.
Claims (9)
1. the independent presser foot device of an embroidery machine head, described embroidery machine head comprises that the shank that casing, vertical pivot, shank driving slide block, presser feet lifting slide block, the described shank driving of driving slide block move up and down drives the slide block driving mechanism and drives the presser feet lifting slide block driving mechanism that described presser feet lifting slide block moves up and down, and described shank drives slide block and presser feet lifting slide block all is set on the described vertical pivot slidably; It is characterized in that described independent presser foot device comprises presser feet, presser feet axle, axle sleeve, following back-up ring, spring, spring sliding sleeve, goes up back-up ring and spring sliding sleeve driving mechanism;
Described presser feet is fixed on the lower end of described presser feet axle, and the presser feet axle is set in the described axle sleeve, and can move up and down;
Described axle sleeve, following back-up ring, spring, spring sliding sleeve and last back-up ring are set on the described presser feet axle from bottom to up in regular turn; Axle sleeve links to each other with described presser feet lifting slide block; The top and bottom of described spring are against respectively on spring sliding sleeve and the following back-up ring; Described back-up ring is down fixedlyed connected with described presser feet axle with last back-up ring, and described spring sliding sleeve driving mechanism is used for the driving spring sliding sleeve and moves up and down along the presser feet axle.
2. the independent presser foot device of embroidery machine head as claimed in claim 1 is characterized in that, described independent presser foot device comprises for the presser feet height adjustment mechanism of regulating the presser feet height.
3. the independent presser foot device of embroidery machine head as claimed in claim 2, it is characterized in that described presser feet comprises riser portion, link to each other with the bottom of this riser portion and the base plate of extending to a side direction of riser portion and link to each other with the top of this riser portion and to the top plate portion of the opposite side direction extension of riser portion; Described top plate portion is provided with the axis hole that voltage supply pin axle passes;
Described presser feet height adjustment mechanism comprises the through hole that is arranged in the riser portion and vertically extends, screw hole and the set screw that is arranged at presser feet axle lower end, and the upper end of described through hole is communicated with described axis hole;
The presser feet axle passes the axis hole of top plate portion; Set screw is passed through hole and the described screw hole of riser portion, and described presser feet is pressed on the presser feet axle.
4. the independent presser foot device of embroidery machine head as claimed in claim 1 is characterized in that, the sidewall that described shank drives slide block is provided with first projection, the sidewall of described spring sliding sleeve be provided with can be inconsistent with described first projection second projection.
5. the independent presser foot device of embroidery machine head as claimed in claim 1 is characterized in that, described spring has pre-compressive strain.
6. the independent presser foot device of embroidery machine head as claimed in claim 1 is characterized in that, described spring sliding sleeve driving mechanism comprises electromagnet and shift fork;
Described shift fork comprises jaw portion and fork-tail portion; Described jaw portion has a prong, and the outer wall of described spring sliding sleeve is provided with a slide block, and this slide block is embedded in the prong of shift fork; Described fork-tail portion is connected with the iron core of electromagnet.
7. the independent presser foot device of embroidery machine head as claimed in claim 6, it is characterized in that, described casing is provided with a guide plate, and described guide plate is provided with first gathering sill and second gathering sill, and described first gathering sill and second gathering sill vertically extend;
Described back-up ring down is provided with a projection, and described slide block is embedded in first gathering sill, and the described projection of back-up ring down is embedded in second gathering sill.
8. as the independent presser foot device of claim 6 or 7 described embroidery machine heads, it is characterized in that described electromagnet is two-way self-sustaining electromagnet.
9. the independent presser foot device of embroidery machine head as claimed in claim 1, it is characterized in that, described independent presser foot device also comprises first packing ring and second packing ring, this first packing ring and second packing ring all are set on the described presser feet axle, first packing ring is positioned at described top of going up back-up ring, and second packing ring is between spring sliding sleeve and last back-up ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320145997 CN203187955U (en) | 2013-03-28 | 2013-03-28 | Independent press foot mechanism for head of embroidery machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320145997 CN203187955U (en) | 2013-03-28 | 2013-03-28 | Independent press foot mechanism for head of embroidery machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203187955U true CN203187955U (en) | 2013-09-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320145997 Expired - Fee Related CN203187955U (en) | 2013-03-28 | 2013-03-28 | Independent press foot mechanism for head of embroidery machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203187955U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106222904A (en) * | 2016-10-11 | 2016-12-14 | 李红女 | Machine head of embroidery machine |
| CN112411043A (en) * | 2020-10-15 | 2021-02-26 | 诸暨玛雅电器机械有限公司 | Needle bar self-locking mechanism |
| CN113957630A (en) * | 2021-11-23 | 2022-01-21 | 浙江越隆缝制设备有限公司 | Coiling embroidery device |
-
2013
- 2013-03-28 CN CN 201320145997 patent/CN203187955U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106222904A (en) * | 2016-10-11 | 2016-12-14 | 李红女 | Machine head of embroidery machine |
| CN112411043A (en) * | 2020-10-15 | 2021-02-26 | 诸暨玛雅电器机械有限公司 | Needle bar self-locking mechanism |
| CN113957630A (en) * | 2021-11-23 | 2022-01-21 | 浙江越隆缝制设备有限公司 | Coiling embroidery device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20160328 |