CN104894757A - Electromagnet and multiple cylinder combined drive automatic presser foot lifting mechanism - Google Patents
Electromagnet and multiple cylinder combined drive automatic presser foot lifting mechanism Download PDFInfo
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- CN104894757A CN104894757A CN201510336460.6A CN201510336460A CN104894757A CN 104894757 A CN104894757 A CN 104894757A CN 201510336460 A CN201510336460 A CN 201510336460A CN 104894757 A CN104894757 A CN 104894757A
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- electromagnet
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- power multiplying
- lifting mechanism
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Abstract
The invention provides an electromagnet and multiple cylinder combined drive automatic presser foot lifting mechanism. The mechanism comprises an electromagnet, an electromagnetic push rod, a multiple cylinder and a knee controlled lifting lever. The mechanism is characterized in that the electromagnetic push rod stretches into the electromagnet and is in direct or indirect connection with an input shaft of the multiple cylinder, and an output shaft of the multiple cylinder is connected with one end of the knee controlled lifting lever which is driven to rotate by the moving of the output shaft. By means of the mechanism, the presser foot can be lifted automatically, and the problem of wastage of time and energy in the prior art is solved.
Description
Technical field
The present invention relates to a kind of foot lifting mechanism.
Background technology
Existing foot lifting mechanism is manual operation, comprises and pulls lift cam with hand, and with knee top knee control push rod, no matter which kind of mode, and not only labour intensity is large, and the efficiency of work is also lower.
Meanwhile, for the larger machine of some presser feet spring pressures as thick material machine, the drive unit of the automatic needle-foot-lifting mechanism of the link-type that industry uses, size is comparatively large, and not only install and transport inconvenience, profile also unsightly.
Such as CN2828080Y discloses a kind of mechanism for lifting pressre of sewing machine, this mechanism comprises presser foot lifter lobe plate, presser feet and is arranged on the transmission device composition between lobe plate and presser feet, described transmission device is made up of crank, pull bar, due to the pure machine driving of this transmission device, presser foot lifter repeatedly, causes labour intensity larger.
Summary of the invention
In order to solve the above problem existed in background technology, the invention provides a kind of electromagnet and power multiplying cylinder combines the automatic needle-foot-lifting mechanism driven, this automatic needle-foot-lifting mechanism can realize presser foot lifter automatically, solves the problem wasted time and energy in prior art.
For achieving the above object, the present invention adopts following technical scheme:
A kind of electromagnet and power multiplying cylinder combine the automatic needle-foot-lifting mechanism driven, comprise electromagnet, electromagnetism push rod, power multiplying cylinder and knee control lift lever, it is characterized in that: electromagnet has stretched into electromagnetism push rod, electromagnetism push rod is directly or indirectly connected with the power shaft of power multiplying cylinder, the output shaft of power multiplying cylinder is connected with one end of knee control lift lever, the mobile rotation driving knee control lift lever of output shaft.
Described power multiplying cylinder comprises oil cylinder, the inner chamber of two sections of different inner diameters is provided with in oil cylinder, first piston is provided with in the inner chamber of less internal diameter, the second piston is provided with compared with in the inner chamber of large diameter, first piston is provided with the power shaft stretching out oil cylinder, second piston is provided with the output shaft stretching out oil cylinder from opposite side, in the inner chamber between first piston and the second piston, is full of sealing fluid.
Adopt connecting rod to be connected between electromagnetism push rod and the power shaft of power multiplying cylinder, electromagnetism push rod moves the power shaft of rear drive power multiplying cylinder to equidirectional motion.
The output shaft of described power multiplying cylinder adopts rope or connecting rod to be connected with between knee control lift lever.
The other end of described knee control lift lever is provided with presser feet spring, and presser feet spring is vertically arranged.
Described power multiplying cylinder use can realize the double cylinder of pulling force or gas-liquid combination cylinder substitutes.
The invention has the beneficial effects as follows: the present invention can realize presser foot lifter function easily and fast, solve in the market manually and knee control presser foot lifter heaviness, the problem that wastes time and energy, thus effectively improve production efficiency.The present invention simultaneously can reduce again the size of the similar means used of the same trade, is convenient to install and transport.
Accompanying drawing explanation
Fig. 1 is the automatic needle-foot-lifting mechanism structure schematic diagram described in embodiment 1;
Fig. 2 is the automatic needle-foot-lifting mechanism structure schematic diagram described in embodiment 2;
Fig. 3 is the automatic needle-foot-lifting mechanism structure schematic diagram described in embodiment 3;
Detailed description of the invention
As shown in Figure 1, a kind of electromagnet and power multiplying cylinder combine the automatic needle-foot-lifting mechanism driven, comprise electromagnet 1, power multiplying cylinder 4, knee control lift lever and presser feet spring, electromagnet 1 and power multiplying cylinder 4 are arranged side by side, electromagnet 1 is extended with electromagnetism push rod 2, electromagnet 1 can realize the reciprocating motion of electromagnetism push rod 2 after being energized, electromagnetism push rod 2 is known prior aries, does not therefore repeat them here the concrete structure of electromagnet and electromagnetism push rod.Power multiplying cylinder 4 has power shaft 46 and output shaft 44, electromagnetism push rod 2 is fixedly connected with by connecting plate 3 with the power shaft 46 of power multiplying cylinder 4, the output shaft 44 of power multiplying cylinder 4 is connected with knee control lift lever 6 by steel wire rope 5, and the other end of knee control lift lever is provided with presser feet spring 7.
Electromagnetism push rod 2 horizontal movement is promoted left after electromagnet energising, electromagnetism push rod 2 applies a level power F1 left to connecting plate 3, power F1 is passed to the power shaft 46 of power multiplying cylinder 4 by connecting plate 3, by the amplification of power multiplying cylinder 4, make output shaft 44 by steel wire rope 5 to knee control lift lever 6 applying level power F2 left, knee control lift lever 6 rotates under the effect of F2, when after electromagnet power-off, the power of knee control lift lever is disappeared, under the effect of the power F3 straight up of presser feet spring 7, knee control lift lever 6 restPoses, thus complete automatic needle-foot-lifting function.
Power multiplying cylinder is prior art, and it adopts multilayer piston to combine, and realizes the output at double of strength.Power multiplying cylinder 4 in the present embodiment comprises oil cylinder 45, the inner chamber of two sections of different inner diameters is provided with in oil cylinder 45, first piston 41 is provided with in the inner chamber of less internal diameter, compared with being provided with the second piston 43 in the inner chamber of large diameter, first piston 41 is provided with the power shaft 46 stretching out oil cylinder 45, second piston 43 is provided with the output shaft 44 stretching out oil cylinder from opposite side, sealing fluid 42 is full of in inner chamber between first piston 41 and the second piston 43, due at any time, oil liquid pressure on two pistons is equal, therefore the size of power that piston is subject to just is proportional to the cross-sectional area of piston.In this enforcement, being 2 times of less inner chamber internal diameter compared with the internal diameter of major lumen, is namely 4 times of less inner chamber area compared with the area of major lumen, thus this power multiplying cylinder achieves the power amplification of 4 times.
Embodiment 2
As shown in Figure 2, in the present embodiment, the electromagnetism push rod 2 on electromagnet 1 is directly fixedly linked with the power shaft of power multiplying cylinder 4, and the output shaft of power multiplying cylinder 4 is connected with knee control lift lever 6 by steel wire rope 5, and the other end of knee control lift lever is provided with presser feet spring 7.
Electromagnetism push rod 2 horizontal movement is driven left after electromagnet energising, electromagnetism push rod 2 drives the power shaft of power multiplying cylinder 4 to move to left, by the amplification of power multiplying cylinder 4, make the output shaft of power multiplying cylinder by steel wire rope 5 to knee control lift lever 6 applying level power left, knee control lift lever 6 rotates under force, when after electromagnet power-off, the power of knee control lift lever is disappeared, under the effect of the power straight up of presser feet spring 7, knee control lift lever 6 restPoses, thus completes automatic needle-foot-lifting function.
Embodiment 3
As shown in Figure 3, in the present embodiment, the electromagnetism push rod 2 on electromagnet 1 is connected by rope 8 with the power shaft of power multiplying cylinder 4, and the output shaft of power multiplying cylinder 4 is connected with knee control lift lever 6 by steel wire rope 5, and the other end of knee control lift lever is provided with presser feet spring 7.
Electromagnetism push rod 2 horizontal movement is driven left after electromagnet energising, electromagnetism push rod 2 drives the power shaft of power multiplying cylinder 4 to move to left, by the amplification of power multiplying cylinder 4, make the output shaft of power multiplying cylinder by steel wire rope 5 to knee control lift lever 6 applying level power left, knee control lift lever 6 rotates under force, when after electromagnet power-off, the power of knee control lift lever is disappeared, under the effect of the power straight up of presser feet spring 7, knee control lift lever 6 restPoses, thus completes automatic needle-foot-lifting function.
Connection between the power shaft of power multiplying cylinder and knee control lift lever can also adopt the modes such as connecting rod.
It will be recognized by those skilled in the art, under the prerequisite not departing from protection scope of the present invention, various amendment, change and combination can be carried out to above-mentioned embodiment, and think that this amendment, change and combination are within the scope of originality thought.
Claims (6)
1. an electromagnet and power multiplying cylinder combine the automatic needle-foot-lifting mechanism driven, comprise electromagnet, electromagnetism push rod, power multiplying cylinder and knee control lift lever, it is characterized in that: electromagnet has stretched into electromagnetism push rod, electromagnetism push rod is directly or indirectly connected with the power shaft of power multiplying cylinder, the output shaft of power multiplying cylinder is connected with one end of knee control lift lever, the mobile rotation driving knee control lift lever of output shaft.
2. a kind of electromagnet as claimed in claim 1 and power multiplying cylinder combine the automatic needle-foot-lifting mechanism driven, it is characterized in that, described power multiplying cylinder comprises oil cylinder, the inner chamber of two sections of different inner diameters is provided with in oil cylinder, first piston is provided with in the inner chamber of less internal diameter, the second piston is provided with compared with in the inner chamber of large diameter, first piston is provided with the power shaft stretching out oil cylinder, second piston is provided with the output shaft stretching out oil cylinder from opposite side, in the inner chamber between first piston and the second piston, is full of sealing fluid.
3. a kind of electromagnet as claimed in claim 1 and power multiplying cylinder combine the automatic needle-foot-lifting mechanism driven, it is characterized in that, adopt connecting rod to be connected between electromagnetism push rod and the power shaft of power multiplying cylinder, electromagnetism push rod moves the power shaft of rear drive power multiplying cylinder to equidirectional motion.
4. a kind of electromagnet as claimed in claim 1 and power multiplying cylinder combine the automatic needle-foot-lifting mechanism driven, and it is characterized in that, the output shaft of described power multiplying cylinder adopts rope or connecting rod to be connected with between knee control lift lever.
5. a kind of electromagnet as described in as arbitrary in claim 1-4 and power multiplying cylinder combine the automatic needle-foot-lifting mechanism driven, and it is characterized in that, the other end of described knee control lift lever is provided with presser feet spring, and presser feet spring is vertically arranged.
6. a kind of electromagnet as claimed in claim 5 and power multiplying cylinder combine the automatic needle-foot-lifting mechanism driven, and it is characterized in that, described power multiplying cylinder use can realize the double cylinder of pulling force or gas-liquid combination cylinder substitutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510336460.6A CN104894757A (en) | 2015-06-17 | 2015-06-17 | Electromagnet and multiple cylinder combined drive automatic presser foot lifting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510336460.6A CN104894757A (en) | 2015-06-17 | 2015-06-17 | Electromagnet and multiple cylinder combined drive automatic presser foot lifting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104894757A true CN104894757A (en) | 2015-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510336460.6A Pending CN104894757A (en) | 2015-06-17 | 2015-06-17 | Electromagnet and multiple cylinder combined drive automatic presser foot lifting mechanism |
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| CN (1) | CN104894757A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087275A (en) * | 2016-08-22 | 2016-11-09 | 浙江沪龙科技股份有限公司 | Knee joint is by feed arrangement, sewing machine cloth pressing foot driving means and control method thereof |
| CN106498633A (en) * | 2016-12-31 | 2017-03-15 | 杰克缝纫机股份有限公司 | A kind of sewing machine with new type auto presser foot lifter structure |
-
2015
- 2015-06-17 CN CN201510336460.6A patent/CN104894757A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087275A (en) * | 2016-08-22 | 2016-11-09 | 浙江沪龙科技股份有限公司 | Knee joint is by feed arrangement, sewing machine cloth pressing foot driving means and control method thereof |
| CN106498633A (en) * | 2016-12-31 | 2017-03-15 | 杰克缝纫机股份有限公司 | A kind of sewing machine with new type auto presser foot lifter structure |
| CN106498633B (en) * | 2016-12-31 | 2019-05-10 | 杰克缝纫机股份有限公司 | A kind of sewing machine with new type auto presser foot lifter structure |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150909 |