CN104264390A - Automatic presser foot lifting electromagnet in self seal sewing machine - Google Patents
Automatic presser foot lifting electromagnet in self seal sewing machine Download PDFInfo
- Publication number
- CN104264390A CN104264390A CN201410537879.3A CN201410537879A CN104264390A CN 104264390 A CN104264390 A CN 104264390A CN 201410537879 A CN201410537879 A CN 201410537879A CN 104264390 A CN104264390 A CN 104264390A
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- CN
- China
- Prior art keywords
- housing
- iron core
- coil
- lifting electromagnet
- rubber ring
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/02—Presser-control devices
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
- D05D2207/00—Use of special elements
- D05D2207/05—Magnetic devices
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention provides an automatic presser foot lifting electromagnet in a self seal sewing machine, and belongs to the technical field of sewing machines. The automatic presser foot lifting electromagnet in the self seal sewing machine solves the problems than safety is low and the like in the prior art. The automatic presser foot lifting electromagnet in the self seal sewing machine comprises a housing, an iron core and a coil, wherein the coil is wound around the outer side portion of the iron core, a cavity is formed in the housing, the coil is arranged in the cavity, two ends of the iron core respectively penetrate through the housing and extend to the exterior of the housing, an interval is formed between the outer side face of the coil and the inner side wall of the housing, the interval is filled with compact insulation materials, an insulation layer which can seal the coil is formed by the compact insulation materials, the coil is further connected with an external guide wire, and the external guide wire penetrates through the insulation layer and the housing and extends to the exterior of the housing. The automatic presser foot lifting electromagnet in the self seal sewing machine not only can guarantee insulation, but also can guarantee that external impurities can not enter the automatic presser foot lifting electromagnet in the self seal sewing machine, further improves damage resistance of the insulation layer, and comprehensively improves use safety and stability.
Description
Technical field
the invention belongs to sewing machine technique field, relate to the automatic needle-foot-lifting electromagnet in a kind of self-packing Sewing machines.
Background technology
at present, the application of electromagnet in Sewing machines widely, the structure adopted is: the framework including shell portion and be arranged on outside shell portion, shell is provided with coil in portion, iron core runs through and to be arranged in shell portion and head and afterbody stretch out outside framework respectively, be formed with the mesopore matched with core configuration in shell portion, the head of iron core is provided with nut; The electromagnet of this structure also exists lower column defects: electromagnet is when stretching, and the iron core round table surface in electromagnet and shell portion madial wall clash into; During contracting, nut can clash into shell portion lateral wall.Above-mentioned various shock produces very large noise, and vibrations are very large, and result of use is poor, and the life-span is short, and assembling trouble, and production efficiency is low.
in order to address this problem, the automatic needle-foot-lifting electromagnet of some producers design a kind of Sewing machines disclosed in CN201320678446.0, the framework including shell portion and be arranged on outside shell portion, shell is provided with coil in portion, the lead-out wire of coil stretches out outside framework, iron core runs through and to be arranged in shell portion and head and afterbody stretch out outside framework respectively, head is provided with nut, buffer spring is set with outside the head of the iron core between nut and framework, first cushion pad of this equipment, second cushion pad can reduce iron core afterbody and framework, collision between iron core and shell portion endoporus and the noise produced, vibrate little, buffer spring can reduce the noise produced because of collision between the head of iron core and framework, structure is simple, and it is convenient to assemble, and result of use is good, extends the service life of electromagnet, improves production efficiency.
but the equipment of this patent also existing defects, cannot ensure the sealing of coil, easily cause the material such as external dust, water to enter, also easily cause the current leakage in coil, cause security incident.
Summary of the invention
the object of the invention is the problems referred to above existed for existing technology, automatic needle-foot-lifting electromagnet in a kind of self-packing Sewing machines is provided, its technical problem to be solved is: " how to realize sealing and the insulating properties of electromagnet outside, thus improve security "
object of the present invention realizes by following technical proposal:
automatic needle-foot-lifting electromagnet in a kind of self-packing Sewing machines, described electromagnet comprises housing, iron core and coil, described coil winding is in the outside portion of iron core, described enclosure interior has cavity, described coil is arranged in cavity, the two ends of described iron core are run through housing respectively and are extended to the outside of housing, it is characterized in that, between the lateral surface of described coil and the madial wall of housing, there is gap, be filled with fine and close insulant in described gap and form the insulating barrier that one deck can seal, described coil is also connected with an external wire, described external wire is through described insulating barrier and housing and extend to the outside of described housing.
its principle is as follows: coil connects outside power supply unit by external wire, makes iron core produce electromagnetic force, thus start working after coil electricity.This device is provided with gap between coil and the madial wall of housing, and be filled with insulant inside, and insulant forms fine and close insulating barrier, thus creating the effect of sealing, the exposed electrical of coil and housing is not only isolated by insulating barrier, and creates the effect of seal isolation simultaneously, insulating properties can not only be ensured, can also ensure that outside impurity can not enter, improve the anti-destructive of insulating barrier further, comprehensively improve safety and stability time this device uses.
in automatic needle-foot-lifting electromagnet in above-mentioned a kind of self-packing Sewing machines, described insulant is working of plastics or silica gel part or rubber parts.Working of plastics or silica gel part or rubber parts are can the insulant of injection moulding.
in automatic needle-foot-lifting electromagnet in above-mentioned a kind of self-packing Sewing machines, described insulant enters in the gap between coil and housing by injection moulding in the molten state, described insulant by the outer surface of hot melting way and described coil and the medial surface of housing fine and close fixing mutually.After fixing by injection moulding and hot melt, not only firmness is high, and middle and contact surface can not produce bubble, the compactness extent of raising insulating barrier, thus improves insulating properties and sealing.
in automatic needle-foot-lifting electromagnet in above-mentioned a kind of self-packing Sewing machines, described iron core comprises the iron core head in column and is shaft-like iron core bar, the inner face of described iron core head and iron core bar is fixed as one and both are coaxially arranged, the two ends of described housing have the first installing hole and the second installing hole that run through, described iron core head is plugged in the first installing hole, described iron core bar is plugged in the second installing hole, the lateral surface of described iron core head and the inwall of the first installing hole fits and both form slipper seal, the seal that can seal described second installing hole is provided with between described iron core bar and housing.Iron core head is that column makes its lateral surface can form slipper seal with the inwall of the first installing hole, seal between iron core bar and housing can ensure the sealing of the second installing hole, coil is thoroughly isolated, improves sealing, ensure that insulating barrier can not be destroyed.
in automatic needle-foot-lifting electromagnet in above-mentioned a kind of self-packing Sewing machines, described seal comprises the first rubber ring and the second rubber ring, described iron core bar have shoulder block and nut, described shoulder block is positioned at housing, described nut is positioned at outside housing, described first rubber ring and the second rubber ring are all set on iron core bar, the medial surface of described first rubber ring and the second rubber ring all fits with the lateral surface of iron core bar, described first rubber ring is positioned at housing and two ends are resisted against on the inwall of shoulder block and housing respectively, one end of described second rubber ring is resisted against on the lateral surface of housing, the other end of the second rubber ring and described nut can be made to lean by moving axially iron core bar.The cooperation of shoulder block and the first rubber ring seals from inside by the second installing hole, and the second rubber ring seals from outside by the second installing hole, and the dual-seal inside and outside formation, improves sealing effectiveness.
in automatic needle-foot-lifting electromagnet in above-mentioned a kind of self-packing Sewing machines, described housing is cuboid, and the lateral surface of this housing is fixed with mounting bracket, and the outer surface of described mounting bracket is coated with one deck insulating lacquer layer.Can insulating properties be had after mounting bracket is coated with insulating lacquer layer, prevent the current leakage of coil on mounting bracket, improve overall insulating properties.
in automatic needle-foot-lifting electromagnet in above-mentioned a kind of self-packing Sewing machines, the outer end of described iron core bar has jointing, described jointing has some keyways for locating.Jointing and keyway are for being connected external equipment.
compared with prior art, advantage of the present invention is as follows: this device is provided with gap between coil and the madial wall of housing, and be filled with insulant inside, and insulant forms fine and close insulating barrier, thus create the effect of sealing, the exposed electrical of coil and housing is not only isolated by insulating barrier, and create the effect of seal isolation simultaneously, insulating properties can not only be ensured, can also ensure that outside impurity can not enter, the anti-destructive of further raising insulating barrier, comprehensively improves safety and stability time this device uses.
Accompanying drawing explanation
fig. 1 is the overall structure stereogram of this automatic needle-foot-lifting electromagnet.
fig. 2 is the overall structure side sectional view of this automatic needle-foot-lifting electromagnet.
fig. 3 is the overall structure vertical view cutaway drawing of this automatic needle-foot-lifting electromagnet.
fig. 4 is the sectional view of mounting bracket.
in figure, 1 housing; 2 iron cores; 3 coils; 4 insulating barriers; 5 external wires; 6 iron core heads; 7 iron core bars; 8 first installing holes; 9 second installing holes; 10 first rubber rings; 11 second rubber rings; 12 shoulder blocks; 13 nuts; 14 mounting brackets; 15 insulating lacquer layer; 16 jointings; 17 keyways.
Detailed description of the invention
be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
as depicted in figs. 1 and 2, electromagnet comprises housing 1, iron core 2 and coil 3, coil 3 is wrapped in the outside portion of iron core 2, housing 1 inside has cavity, coil 3 is arranged in cavity, housing 1 is in cuboid, and the lateral surface of this housing 1 is fixed with mounting bracket 14, the outer surface of mounting bracket 14 is coated with one deck insulating lacquer layer 15.Can insulating properties be had after mounting bracket 14 is coated with insulating lacquer layer 15, prevent the current leakage of coil 3 on mounting bracket 14, improve overall insulating properties.
as shown in Figure 3 and Figure 4, the two ends of iron core 2 are run through housing 1 respectively and are extended to the outside of housing 1, between the lateral surface of coil 3 and the madial wall of housing 1, there is gap, be filled with fine and close insulant in gap and form the insulating barrier 4 that one deck can seal, insulant is working of plastics or silica gel part or rubber parts.Working of plastics or silica gel part or rubber parts are can the insulant of injection moulding.Insulant enters in the gap between coil 3 and housing 1 by injection moulding in the molten state, insulant by the outer surface of hot melting way and coil 3 and the medial surface of housing 1 fine and close fixing mutually.After fixing by injection moulding and hot melt, not only firmness is high, and middle and contact surface can not produce bubble, the compactness extent of raising insulating barrier 4, thus improves insulating properties and sealing.
coil 3 is also connected with an external wire 5, and external wire 5 is through insulating barrier 4 and housing 1 and extend to the outside of housing 1.Iron core 2 comprises the iron core head 6 in column and is shaft-like iron core bar 7, iron core head 6 and the inner face both iron core bar 7 are fixed as one and both are coaxially arranged, the two ends of housing 1 have the first installing hole 8 and the second installing hole 9 run through, iron core head 6 is plugged in the first installing hole 8, iron core bar 7 is plugged in the second installing hole 9, the lateral surface of iron core the head 6 and inwall of the first installing hole 8 fits and both form slipper seal, is provided with the seal that can seal the second installing hole 9 between iron core bar 7 and housing 1.Iron core head 6 makes its lateral surface can form slipper seal with the inwall of the first installing hole 8 in column, seal between iron core bar 7 and housing 1 can ensure the sealing of the second installing hole 9, coil 3 is thoroughly isolated, improves sealing, ensure that insulating barrier 4 can not be destroyed.Seal comprises the first rubber ring 10 and the second rubber ring 11, iron core bar 7 have shoulder block 12 and nut 13, shoulder block 12 is positioned at housing 1, nut is positioned at outside housing 1, first rubber ring 10 and the second rubber ring 11 are all set on iron core bar 7, the medial surface of the first rubber ring 10 and the second rubber ring 11 all fits with the lateral surface of iron core bar 7, first rubber ring 10 is positioned at housing 1 and two ends are resisted against on the inwall of shoulder block 12 and housing 1 respectively, one end of second rubber ring 11 is resisted against on the lateral surface of housing 1, the other end of the second rubber ring 11 and nut 13 can be made to lean by moving axially iron core bar 7.The cooperation of shoulder block 12 and the first rubber ring 10 seals from inside by the second installing hole 9, and the second rubber ring 11 seals from outside by the second installing hole 9, and the dual-seal inside and outside formation, improves sealing effectiveness.The outer end of iron core bar 7 has jointing 16, jointing 16 has some keyways 17 for locating.Jointing 16 and keyway 17 are for being connected external equipment.
coil 3 connects outside power supply unit by external wire 5, and coil 3 makes iron core 2 produce electromagnetic force after being energized, thus starts working.This device is provided with gap between coil 3 and the madial wall of housing 1, and be filled with insulant inside, and insulant forms fine and close insulating barrier 4, thus creating the effect of sealing, the exposed electrical of coil 3 and housing 1 is not only isolated by insulating barrier 4, and creates the effect of seal isolation simultaneously, insulating properties can not only be ensured, can also ensure that outside impurity can not enter, improve the anti-destructive of insulating barrier 4 further, comprehensively improve safety and stability time this device uses.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (7)
1. the automatic needle-foot-lifting electromagnet in a self-packing Sewing machines, described electromagnet comprises housing (1), iron core (2) and coil (3), described coil (3) is wrapped in the outside portion of iron core (2), described housing (1) inside has cavity, described coil (3) is arranged in cavity, the two ends of described iron core (2) are run through housing (1) respectively and are extended to the outside of housing (1), it is characterized in that, between the lateral surface of described coil (3) and the madial wall of housing (1), there is gap, be filled with fine and close insulant in described gap and form the insulating barrier (4) that one deck can seal, described coil (3) is also connected with an external wire (5), described external wire (5) is through described insulating barrier (4) and housing (1) and extend to the outside of described housing (1).
2. the automatic needle-foot-lifting electromagnet in a kind of self-packing Sewing machines according to claim 1, is characterized in that, described insulant is working of plastics or silica gel part or rubber parts.
3. the automatic needle-foot-lifting electromagnet in a kind of self-packing Sewing machines according to claim 2, it is characterized in that, described insulant enters in the gap between coil (3) and housing (1) by injection moulding in the molten state, described insulant by the outer surface of hot melting way and described coil (3) and the medial surface of housing (1) fine and close fixing mutually.
4. the automatic needle-foot-lifting electromagnet in a kind of self-packing Sewing machines according to claim 1 or 2 or 3, it is characterized in that, described iron core (2) comprises the iron core head (6) in column and is shaft-like iron core bar (7), described iron core head (6) and iron core bar (7) both inner faces are fixed as one and both are coaxially arranged, the two ends of described housing (1) have the first installing hole (8) and the second installing hole (9) that run through, described iron core head (6) is plugged in the first installing hole (8), described iron core bar (7) is plugged in the second installing hole (9), the lateral surface of described iron core head (6) and the inwall of the first installing hole (8) fits and both form slipper seal, the seal that can seal described second installing hole (9) is provided with between described iron core bar (7) and housing (1).
5. the automatic needle-foot-lifting electromagnet in a kind of self-packing Sewing machines according to claim 4, it is characterized in that, described seal comprises the first rubber ring (10) and the second rubber ring (11), described iron core bar (7) have shoulder block (12) and nut (13), described shoulder block (12) is positioned at housing (1), described nut is positioned at housing (1) outward, described first rubber ring (10) and the second rubber ring (11) are all set on iron core bar (7), the medial surface of described first rubber ring (10) and the second rubber ring (11) all fits with the lateral surface of iron core bar (7), described first rubber ring (10) is positioned at housing (1) and two ends are resisted against on the inwall of shoulder block (12) and housing (1) respectively, one end of described second rubber ring (11) is resisted against on the lateral surface of housing (1), the other end of the second rubber ring (11) and described nut (13) can be made to lean by moving axially iron core bar (7).
6. the automatic needle-foot-lifting electromagnet in a kind of self-packing Sewing machines according to claim 1 or 2 or 3, it is characterized in that, described housing (1) is in cuboid, the lateral surface of this housing (1) is fixed with mounting bracket (14), the outer surface of described mounting bracket (14) is coated with one deck insulating lacquer layer (15).
7. the automatic needle-foot-lifting electromagnet in a kind of self-packing Sewing machines according to claim 5, it is characterized in that, the outer end of described iron core bar (7) has jointing (16), described jointing (16) has some keyways (17) for locating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410537879.3A CN104264390A (en) | 2014-10-14 | 2014-10-14 | Automatic presser foot lifting electromagnet in self seal sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410537879.3A CN104264390A (en) | 2014-10-14 | 2014-10-14 | Automatic presser foot lifting electromagnet in self seal sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104264390A true CN104264390A (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410537879.3A Pending CN104264390A (en) | 2014-10-14 | 2014-10-14 | Automatic presser foot lifting electromagnet in self seal sewing machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN104264390A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108265417A (en) * | 2018-03-30 | 2018-07-10 | 苏州胜璟电磁科技有限公司 | A kind of use in sewing machine electromagnet |
| CN108315894A (en) * | 2018-04-08 | 2018-07-24 | 苏州胜璟电磁科技有限公司 | A kind of balancing point electromagnet |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2723795Y (en) * | 2004-05-28 | 2005-09-07 | 马卫民 | Double magnetic steel pulse electromagnetic gas valve |
| CN101324179A (en) * | 2008-07-31 | 2008-12-17 | 河北华北石油荣盛机械制造有限公司 | Underwater electrohydraulic control valve |
| CN101728921A (en) * | 2008-10-20 | 2010-06-09 | 昆山恒辉新能源有限公司 | Solar magnetic power device |
| CN203144697U (en) * | 2013-03-11 | 2013-08-21 | 新杰克缝纫机股份有限公司 | Sewing machine backstitch electromagnet |
| CN204199015U (en) * | 2014-10-14 | 2015-03-11 | 浙江银工缝纫机有限公司 | Automatic needle-foot-lifting electromagnet in a kind of self-packing Sewing machines |
-
2014
- 2014-10-14 CN CN201410537879.3A patent/CN104264390A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2723795Y (en) * | 2004-05-28 | 2005-09-07 | 马卫民 | Double magnetic steel pulse electromagnetic gas valve |
| CN101324179A (en) * | 2008-07-31 | 2008-12-17 | 河北华北石油荣盛机械制造有限公司 | Underwater electrohydraulic control valve |
| CN101728921A (en) * | 2008-10-20 | 2010-06-09 | 昆山恒辉新能源有限公司 | Solar magnetic power device |
| CN203144697U (en) * | 2013-03-11 | 2013-08-21 | 新杰克缝纫机股份有限公司 | Sewing machine backstitch electromagnet |
| CN204199015U (en) * | 2014-10-14 | 2015-03-11 | 浙江银工缝纫机有限公司 | Automatic needle-foot-lifting electromagnet in a kind of self-packing Sewing machines |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108265417A (en) * | 2018-03-30 | 2018-07-10 | 苏州胜璟电磁科技有限公司 | A kind of use in sewing machine electromagnet |
| CN108315894A (en) * | 2018-04-08 | 2018-07-24 | 苏州胜璟电磁科技有限公司 | A kind of balancing point electromagnet |
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Application publication date: 20150107 |