CN204370148U - Rear-mounted presser feet lifts pressure device - Google Patents
Rear-mounted presser feet lifts pressure device Download PDFInfo
- Publication number
- CN204370148U CN204370148U CN201420814447.8U CN201420814447U CN204370148U CN 204370148 U CN204370148 U CN 204370148U CN 201420814447 U CN201420814447 U CN 201420814447U CN 204370148 U CN204370148 U CN 204370148U
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- China
- Prior art keywords
- arm
- drive source
- presser feet
- lever
- sewing machine
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- Withdrawn - After Issue
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Abstract
The utility model provides a kind of rear-mounted presser feet to lift pressure device, comprises drive source, activation lever, lifting connecting rod and presser feet arm; Drive source is fixed by the outer wall of drive source gripper shoe and sewing machine case rear end, and drive source comprises the flexible telescopic shaft of fore-and-aft direction; Activation lever is located at the top of drive source, comprises balance pivot, the first lever arm and the second lever arm, balance pivot and a supporting seat hinged, supporting seat is fixed on the outer wall of sewing machine case rear end; The end of the first lever arm is flexibly connected with the end of telescopic shaft; Presser feet arm comprises horizontal arm, be located at vertical linking arm above horizontal arm, the junction of horizontal arm and vertical linking arm and the inwall of sewing machine case front end hinged; Promote connecting rod and be located at sewing machine case inside, the end promoting one end and the vertical linking arm of connecting rod is hinged, and the end of the lifting other end of connecting rod and the second lever arm of activation lever is hinged.The utility model is convenient to assembling and dismounting, for debugging, subsequent maintenance, maintenance provide conveniently.
Description
Technical field
The presser feet that the utility model relates to Sewing machines lifts pressure technical field, particularly relates to a kind of rear-mounted presser feet and lifts pressure device.
Background technology
In prior art, the pressure of lifting of sewing-machine foot is mainly adopted and is realized in two ways: a kind of be adopt driven by motor mechanical structure to realize presser feet lift pressure, such mechanical structure is often very complicated, need configuration driven device, gear pair, cam etc., make the parts of mechanical structure very many, cause the deployment cost of parts high, the workload of assembling and setting is also large, thus it is also large to control difficulty, causes very large difficulty to follow-up maintenance.Also have a kind of mode be adopt built-in air cylinder driving device structure to realize presser feet lift pressure, the inefficiency of this mode, often there is the problems such as cylinder dynamics is inadequate, poor stability in actual use, in addition because cylinder needs the inside being contained in sewing machine case, make whole sewing-machine foot lift the assembling of pressing system and dismantle not easily, be also unfavorable for follow-up maintenance.
Summary of the invention
The shortcoming of prior art in view of the above, the technical problems to be solved in the utility model is to provide a kind of rear-mounted presser feet being convenient to assemble and dismantle to lift pressure device, to overcome the above-mentioned defect of prior art.
In order to solve the problems of the technologies described above, the utility model provides a kind of rear-mounted presser feet to lift pressure device, comprises drive source, activation lever, lifting connecting rod and presser feet arm;
Described drive source is fixed by the outer wall of drive source gripper shoe and sewing machine case rear end, and described drive source comprises the flexible telescopic shaft of fore-and-aft direction;
Described activation lever is located at the top of described drive source, comprises balance pivot, the first lever arm and the second lever arm, described balance pivot and a supporting seat hinged, described supporting seat is fixed on the outer wall of sewing machine case rear end; The end of described first lever arm is flexibly connected with the end of described telescopic shaft;
Described presser feet arm comprises horizontal arm, be located at vertical linking arm above horizontal arm, the junction of described horizontal arm and vertical linking arm and the inwall of sewing machine case front end hinged;
Sewing machine case inside is located at by described lifting connecting rod, one end of described lifting connecting rod and the end of described vertical linking arm hinged, the end of the other end of described lifting connecting rod and the second lever arm of described activation lever is hinged.
Preferably, described drive source is cylinder, the piston rod of described cylinder and the telescopic shaft of described drive source.
Preferably, described drive source and described drive source gripper shoe are fixed by securing member, and described drive source gripper shoe is provided with the pilot hole installing described drive source, and described pilot hole is long lumbar hole.
Preferably, the end of described telescopic shaft is provided with a U-shaped fork, is provided with a bearing pin between the two side of described U-shaped fork; Described first lever arm end is provided with the long lumbar hole of a lower ending opening, and described long lumbar hole coordinates with described bearing pin, forms the end of the first lever arm and being flexibly connected of described telescopic shaft end.
Preferably, the length of described first lever arm is 2 times of the length of the second lever arm.
Preferably, the front of described second lever arm is provided with a caging bolt, and described caging bolt coordinates with the screwed hole of sewing machine case rear end, and the screw rod of described caging bolt is also provided with a nut.
As mentioned above, rear-mounted presser feet of the present utility model lifts pressure device, has following beneficial effect:
Drive source, activation lever are all positioned at the outside of sewing machine case rear end, make the coupling part of whole device almost all external, thus are convenient to assembling and dismounting, for debugging, subsequent maintenance, maintenance provide conveniently; Overall structure is simple, occupy little space, deployment cost is low.
Accompanying drawing explanation
Fig. 1 is shown as the structural representation that rear-mounted presser feet of the present utility model lifts pressure device.
Fig. 2 is shown as rear-mounted presser feet of the present utility model and lifts pressure device and remove the structural representation after sewing machine case.
Fig. 3 is shown as the partial enlarged drawing of I view in Fig. 2.
Fig. 4 is shown as the partial enlarged drawing of II view in Fig. 2.
Fig. 5 is shown as the schematic front view that rear-mounted presser feet of the present utility model lifts pressure device.
Fig. 6 is shown as the partial enlarged drawing of III view in Fig. 5.
Fig. 7 is shown as the partial enlarged drawing of IV view in Fig. 5.
Element numbers explanation
1 sewing machine case 100 drive source
110 telescopic shaft 120 U-shaped forks
130 bearing pin 200 activation lever
201 balance pivot 210 first lever arms
211 long lumbar hole 220 second lever arms
300 promote connecting rod 400 presser feet arm
410 horizontal arms 420 are linking arm vertically
500 drive source gripper shoe 600 supporting seats
610 bearing pin 700 caging bolts
710 nut 800 limit bases
810 bearing pins
Detailed description of the invention
By particular specific embodiment, embodiment of the present utility model is described below, person skilled in the art scholar the content disclosed by this description can understand other advantages of the present utility model and effect easily.
Refer to Fig. 1 to Fig. 7.Notice, structure, ratio, size etc. that this description institute accompanying drawings illustrates, content all only in order to coordinate description to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the utility model can produce and the object that can reach, still all should drop on technology contents that the utility model discloses and obtain in the scope that can contain.The upside observing paper during Fig. 5 in following examples is upper direction, and the downside of paper is lower direction, to be rear to the right side of, paper be the left side of paper front to.
In view of prior art sewing-machine foot lift pressure device, or adopt driven by motor, complicated in mechanical structure, not only deployment cost is high, and the workload of assembling and setting is large, causes very large difficulty to subsequent maintenance maintenance; Adopt built-in air cylinder driving device structure, not only inefficiency, poor stability, and assemble and dismantle very inconvenient, be also unfavorable for that subsequent maintenance is maintained.Inventor of the present utility model designs a kind of rear-mounted presser feet and lifts pressure device, the actuator and transmission mechanism of lifting pressure device are arranged on the outside of sewing machine case rear end, thus the case opening Sewing machines rear end can carry out assembling and dismantling, make subsequent maintenance very convenient, and overall structure is simple, thus take up room little and deployment cost is also low.
Below will lift pressure device by specific embodiment to rear-mounted presser feet of the present utility model to be described in detail.
As shown in Figure 1 and Figure 2, a kind of rear-mounted presser feet lifts pressure device, comprises drive source 100, activation lever 200, promotes connecting rod 300 and presser feet arm 400.
As shown in Figure 1, shown in Figure 5, described drive source 100 is fixed by the outer wall of drive source gripper shoe 500 with sewing machine case 1 rear end, and as shown in Figure 6, described drive source 100 comprises the flexible telescopic shaft 110 of fore-and-aft direction.
As shown in Fig. 3, Fig. 6, described activation lever 200 is located at the top of described drive source 100, comprise balance pivot 201, first lever arm 210 and the second lever arm 220, described balance pivot 201 is a circular hole, described balance pivot 201 by bearing pin 610 and a supporting seat 600 hinged, described supporting seat 600 is fixed on the outer wall of sewing machine case 1 rear end; The end of described first lever arm 210 is flexibly connected with the end of described telescopic shaft 110.
As shown in Fig. 3, Fig. 6, the end of described first lever arm 210 realizes by following structure with being flexibly connected of end of described telescopic shaft 110: the end of described telescopic shaft 110 is provided with a U-shaped and pitches 120, is provided with a bearing pin 130 between the two side of described U-shaped fork 120; Described first lever arm 210 end is provided with the long lumbar hole 211 of a lower ending opening, and described long lumbar hole 211 coordinates with described bearing pin 130.Certainly, described flexible connection also can realize in other way, such as, a connecting rod is set again, make the end of one end of connecting rod and the first lever arm 210 hinged, make the end of the other end of connecting rod and telescopic shaft 110 hinged, being flexibly connected of the end of the first lever arm 210 and the end of described telescopic shaft 110 can be realized equally.
As shown in Fig. 4, Fig. 5, Fig. 7, described presser feet arm 400 comprises horizontal arm 410, be located at vertical linking arm 420 above horizontal arm 410, and the junction of described horizontal arm 410 and vertical linking arm 420 is hinged with the inwall of sewing machine case 1 front end by bearing pin 810.
As shown in Fig. 1, Fig. 3 to Fig. 7, it is inner that sewing machine case 1 is located at by described lifting connecting rod 300, one end of described lifting connecting rod 300 and the end of described vertical linking arm 420 hinged, the end of the other end of described lifting connecting rod 300 and the second lever arm 220 of described activation lever is hinged.
As shown in Fig. 2, Fig. 5, because promote connecting rod 300 to reach front end by the rear end of sewing machine case 1 always, length is longer, for the ease of installing, avoid promoting connecting rod 300 simultaneously and produce larger vibration in the course of the work, the middle part of described lifting connecting rod 300 is also provided with at least two limit bases 800, described limit base 800 is fixed on the inwall of described sewing machine case 1, the spacing hole that described limit base 800 coordinates with lifting connecting rod is the long lumbar hole of above-below direction, to meet the motion of described lifting connecting rod 300 above-below direction.
Described drive source 100 of the present utility model preferably adopts cylinder, then the piston rod of described cylinder and the telescopic shaft 110 of described drive source.Certain described drive source 100 also can adopt electromagnet structure, arranges the iron core of rectilinear motion in the inside of electromagnet, then the iron core of rectilinear motion also can as the telescopic shaft 110 of drive source 100.
Described drive source 100 of the present utility model is fixed by securing member with described drive source gripper shoe 500, then described drive source gripper shoe 500 should be provided with the pilot hole installing described drive source 100, described pilot hole is preferably long lumbar hole, so that the adjustment of drive source 100 position, thus the high and low position of presser foot lifter is adjusted, make the utility model be convenient to adjustment and installation.
The length of described first lever arm 210 of the present utility model is preferably designed as 2 times of the length being the second lever arm 220, to make the power output of described activation lever 200 larger, be about the twice of the driving force of the telescopic shaft 110 of drive source 100, thus ensure that the power of presser foot lifter is enough large, avoid driving force to cause the problem of presser foot lifter poor stability not.
The utility model is preferably also provided with a caging bolt 700, described caging bolt 700 is located at the front of described second lever arm 220, described caging bolt 700 coordinates with the screwed hole of sewing machine case 1 rear end, the screw rod of described caging bolt 700 is also provided with a nut 710, described nut 710 is tight against sewing machine case 1, to play locking effect to the connection of caging bolt 700 on sewing machine case 1.The swing of described caging bolt 700 to described second lever arm 220 is carried out spacing, thus presser feet is limited lifting the highest lifting position pressed through in journey, makes the utility model be convenient to debugging after mounting.
The operation principle that rear-mounted presser feet of the present utility model lifts pressure device is: first, the telescopic shaft 110 of drive source 100 is in retracted mode, first lever arm 210 of described activation lever 200 is under the drive of the telescopic shaft 110 of drive source 100, the position of in the end holding is swung around balance pivot 201 (i.e. bearing pin 610), correspondingly, second lever arm 220 of described activation lever 200 swings in position foremost around balance pivot 201 (i.e. bearing pin 610), thus drive lifting connecting rod 300, promote connecting rod 300 and drive presser feet arm 400 again, the horizontal arm 410 of presser feet arm 400 is made to swing to position bottom around bearing pin 810, now, presser feet is in pressed status.When presser feet needs lifting, signal is sent to drive source 100, the telescopic shaft 110 of drive source 100 is stretched out forward, first lever arm 210 of described activation lever 200 under the drive of telescopic shaft 110 around balance pivot 201 forward rocking motion, correspondingly, second lever arm 220 of described activation lever 200 swings backward around balance pivot 201 (i.e. bearing pin 610), presser feet arm 400 is driven by promoting connecting rod 300, the horizontal arm 410 of presser feet arm 400 is upwards swung around bearing pin 810, thus realizes the lifting of presser feet.When presser feet needs to press down, the telescopic shaft 110 of drive source 100 is again made to bounce back.
In sum, rear-mounted presser feet of the present utility model lifts pressure device, and drive source and activation lever are all located at the outside of sewing machine case rear end, makes the coupling part of whole device almost all external, thus be convenient to assembling and dismounting, for debugging, subsequent maintenance, maintenance provide conveniently; Rear-mounted presser feet of the present utility model lift pressure device overall structure simple, occupy little space, deployment cost is low.So the utility model effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all without prejudice under spirit of the present utility model and category, can modify above-described embodiment or changes.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that the utility model discloses, must be contained by claim of the present utility model.
Claims (6)
1. rear-mounted presser feet lifts a pressure device, it is characterized in that, comprises drive source (100), activation lever (200), promotes connecting rod (300) and presser feet arm (400);
Described drive source (100) is fixed by the outer wall of drive source gripper shoe (500) with sewing machine case (1) rear end, and described drive source (100) comprises the flexible telescopic shaft (110) of fore-and-aft direction;
Described activation lever (200) is located at the top of described drive source (100), comprise balance pivot (201), the first lever arm (210) and the second lever arm (220), described balance pivot (201) is hinged with a supporting seat (600), and described supporting seat (600) is fixed on the outer wall of sewing machine case (1) rear end; The end of described first lever arm (210) is flexibly connected with the end of described telescopic shaft (110);
Described presser feet arm (400) comprises horizontal arm (410), be located at the vertical linking arm (420) of horizontal arm (410) top, the junction of described horizontal arm (410) and vertical linking arm (420) and the inwall of sewing machine case (1) front end hinged;
It is inner that described lifting connecting rod (300) is located at sewing machine case (1), one end of described lifting connecting rod (300) and the end of described vertical linking arm (420) hinged, the end of the other end of described lifting connecting rod (300) and second lever arm (220) of described activation lever is hinged.
2. rear-mounted presser feet according to claim 1 lifts pressure device, it is characterized in that: described drive source (100) is cylinder, the piston rod of described cylinder and the telescopic shaft (110) of described drive source.
3. rear-mounted presser feet according to claim 1 lifts pressure device, it is characterized in that: described drive source (100) and described drive source gripper shoe (500) are fixed by securing member, described drive source gripper shoe (500) is provided with the pilot hole installing described drive source (100), and described pilot hole is long lumbar hole.
4. rear-mounted presser feet according to claim 1 lifts pressure device, it is characterized in that: the end of described telescopic shaft (110) is provided with U-shaped fork (120), is provided with a bearing pin (130) between the two side of described U-shaped fork (120); Described first lever arm (210) end is provided with the long lumbar hole (211) of a lower ending opening, described long lumbar hole (211) coordinates with described bearing pin (130), forms the end of the first lever arm (210) and being flexibly connected of described telescopic shaft (110) end.
5. rear-mounted presser feet according to claim 1 lifts pressure device, it is characterized in that: the length of described first lever arm (210) is 2 times of the length of the second lever arm (220).
6. the rear-mounted presser feet according to any one of claim 1 to 5 lifts pressure device, it is characterized in that: the front of described second lever arm (220) is provided with a caging bolt (700), described caging bolt (700) coordinates with the screwed hole of sewing machine case (1) rear end, the screw rod of described caging bolt (700) is also provided with a nut (710).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420814447.8U CN204370148U (en) | 2014-12-19 | 2014-12-19 | Rear-mounted presser feet lifts pressure device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420814447.8U CN204370148U (en) | 2014-12-19 | 2014-12-19 | Rear-mounted presser feet lifts pressure device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204370148U true CN204370148U (en) | 2015-06-03 |
Family
ID=53326381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420814447.8U Withdrawn - After Issue CN204370148U (en) | 2014-12-19 | 2014-12-19 | Rear-mounted presser feet lifts pressure device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204370148U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104562457A (en) * | 2014-12-19 | 2015-04-29 | 拓卡奔马机电科技有限公司 | Rear-mounted presser foot lifting and pressing device |
| CN106216563A (en) * | 2016-07-27 | 2016-12-14 | 姜勇 | A kind of linear feeding compresses hoop bender |
-
2014
- 2014-12-19 CN CN201420814447.8U patent/CN204370148U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104562457A (en) * | 2014-12-19 | 2015-04-29 | 拓卡奔马机电科技有限公司 | Rear-mounted presser foot lifting and pressing device |
| CN104562457B (en) * | 2014-12-19 | 2017-07-14 | 拓卡奔马机电科技有限公司 | Rear-mounted presser feet lifts pressure device |
| CN106216563A (en) * | 2016-07-27 | 2016-12-14 | 姜勇 | A kind of linear feeding compresses hoop bender |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150603 Effective date of abandoning: 20170714 |
|
| AV01 | Patent right actively abandoned |