CN207944237U - A kind of fervent presser feet of anti-Bird's Nest device - Google Patents

Abstract

This practicality discloses a kind of fervent presser feet of anti-Bird's Nest device, the fervent presser feet includes presser feet bottom plate, heat tangential knife, the needle passing hole that needlework enter is held in setting on the presser feet bottom plate, the convex block upwardly extended is respectively set in the left and right sides, deep gouge is formed between two convex blocks, it is connected to by conducting wire straight slot between the deep gouge and needle passing hole, prevent setting automatically controlled hot melt tangential knife in the deep gouge, the automatically controlled hot melt tangential knife is made of a high temperature resistant tangent line piece and two fire resistant electric wires, after being powered to the fire resistant electric wire, the high temperature resistant tangent line piece can generate heat to more than sewing thread fusing point, the cutting edge of the high temperature resistant tangent line piece is met to the conducting wire straight slot.Compared with prior art, the case where the utility model is not in plucking, more robust, the end of a thread is shorter.

Description

A kind of fervent presser feet of anti-Bird's Nest device

Technical field

The utility model is related to sewing machine more particularly to a kind of fervent presser feets of anti-Bird's Nest device.

Background technology

General sewing machine typically forms the stitching of a nest like in cloth bottom surface, influences to stitch when starting sewing Quality of threading and appearance.In order to avoid Bird's Nest phenomenon, there are some anti-Bird's Nest devices to clamp the end of a thread after trimming on current market, Using a conventional blade being arranged in presser feet when playing seam, excessive thread ends is cut away or sliced off, remaining the end of a thread is made to the greatest extent may be used Can be short, but the end of a thread for being cut into of this anti-Bird's Nest device the problem is that：

1. tangent line is completed by then passing through the action that conventional blade physics is cut or cut, and line is by many superfine fibres Dimension composition, to cause during the stress cut or cut is pullled, appearance is not the fiber cut or cut off, thus from macroscopic view On see the end of a thread section of appearance " plucking ", unsightly to tangent line.Even new knife can also have the case where slight plucking.

2. blade is not durable, generally plucking problem adjustment or replacement seriously will be needed due to abrasion using 3 months.

3. cutting or cutting off due to pullling stress on cloth cover, so can still pull the end of a thread for leaving 3 millimeters in cloth cover On, influence beauty.

Invention content

The utility model in order to solve problem above, provides a kind of fervent presser feet of anti-Bird's Nest device, and technology path is Conventional cold cut blade is changed to hot melt tangential knife, anti-Bird's Nest device is made.

It is adopted the technical scheme that：

A kind of fervent presser feet of anti-Bird's Nest device, the fervent presser feet include presser feet bottom plate, hot melt tangential knife, the pressure The needle passing hole that needlework enter is held in setting on sole, and the left and right sides is respectively set the convex block upwardly extended, two convex blocks it Between form deep gouge, be connected to by conducting wire straight slot between the deep gouge and needle passing hole, fixed automatically controlled hot melt tangential knife in the deep gouge, The automatically controlled hot melt tangential knife is made of a high temperature resistant tangent line piece and two fire resistant electric wires, logical to the fire resistant electric wire After electricity, the high temperature resistant tangent line piece can generate heat to more than sewing thread fusing point, and the cutting edge of the high temperature resistant tangent line piece is met to described Conducting wire straight slot.

Further, further include tool apron, the tool apron is corresponding to the counterbore shape and is placed in the deep gouge, described The straight slot that two fire resistant electric wires pass through is held in setting in the middle part of tool apron, is opened up on the side wall of the straight slot both sides and holds the resistance to height The slot that warm tangent line piece is inserted into is placed, and can is interference fit, be can also be clearance fit.It can be bonded with viscose glue, it is also non-sticking Knot.

Further, the tool apron includes aluminum or aluminum alloy pedestal, and pedestal outer surface aoxidizes out one layer of insulation and high temperature resistant Alundum (Al2O3) film layer.

Further, one layer of high-temperature Resistance Adhesives are coated at the tool apron and the interface of the deep gouge, by described resistance to The tool apron is installed on the presser feet bottom plate in the deep gouge by high temperature adhesive.

Further, one layer of high-temperature insulation gluing is coated at the tool apron and the interface of the automatically controlled hot melt tangential knife The automatically controlled hot melt tangential knife is installed in the tool apron by agent by the high-temperature insulation adhesive.

Further, two fire resistant electric wires arranged between two convex blocks, not with other component interferingly Power supply and control device are connected after being pierced by the presser feet bottom plate.

Further, the voltage of the power supply within 36V, all may be used by DC voltage, alternating voltage, pulse voltage.

Further, the control device is powered always between controlling two fire resistant electric wires, alternatively, only rising It is just powered between two fire resistant electric wires when seam and is automatically powered off after a period of time that is powered.

Compared with prior art, the utility model has the beneficial effects that：

1. hot melt tangential knife is by heating principle, making the heated fusing of sewing thread, can without pullling for strength Fiber in light cutting line.And due to being the case where hot melt cuts off, is not in plucking.

2. heat tangential knife almost without abrasion, to more more robust than conventional blade, theoretically can permanently use.It saves Repair, the cost replaced.

3. due to sewing thread all characteristics with heat shrinkable itself, play seam face with what hot melt tangential knife was cut out Line the end of a thread, it is also shorter than what conventional blade was cut out.

4. due to having the goose pimples after a little heating on the end of a thread of hot melt cut-out, so, even if the end of a thread cut is very short There is no concern that the another side that the end of a thread counter can take off to cloth is gone.

Description of the drawings

Fig. 1 is the structural schematic diagram of embodiment 1；

Fig. 2 is the vertical view of Fig. 1；

Fig. 3 is the exploded view of Fig. 1；

Fig. 4 is the structural schematic diagram of embodiment 2；

Fig. 5 is the vertical view of Fig. 4；

Fig. 6 is the exploded view of Fig. 4；

Fig. 7 is the partial enlarged view at dashed box in Fig. 3 or Fig. 6.

Specific implementation mode

Embodiment 1, referring to attached drawing 1-3, a kind of fervent concora crush foot of anti-Bird's Nest device, the fervent concora crush foot includes pressure Sole 1 heats tangential knife 2, is arranged on the presser feet bottom plate 1 and holds the needle passing hole 13 that needlework enter, the left and right sides is respectively set The convex block 14 upwardly extended forms deep gouge 15 between two convex blocks 14, by leading between the deep gouge 15 and needle passing hole 13 Line straight slot 16 is connected to, fixed automatically controlled hot melt tangential knife 2 in the deep gouge 15, and described automatically controlled to heat tangential knife U-shaped resistance to by one High temperature tangent line piece 21 and two fire resistant electric wires 22 form, after being powered to the fire resistant electric wire, the high temperature resistant tangent line piece It can generate heat to more than sewing thread fusing point, the cutting edge of the high temperature resistant tangent line piece 21 is met to the conducting wire straight slot 16.It further include knife Seat 3, the tool apron 3 include aluminum or aluminum alloy pedestal, and pedestal outer surface aoxidizes out one layer of insulation and heat safe alundum (Al2O3) Film layer, the tool apron 3 is corresponding to 15 shape of the deep gouge, and the tool apron 3 and one layer of coating at the interface of the deep gouge 15 are resistance to The tool apron 3 is installed on the presser feet bottom plate 1 in the deep gouge 15, institute by high temperature adhesive by the high-temperature Resistance Adhesives It states and coats one layer of high-temperature insulation adhesive at tool apron 3 and the interface of the automatically controlled hot melt tangential knife 2, pass through the high temperature resistant The automatically controlled hot melt tangential knife 2 is installed in the tool apron 3 by insulation adhesive.The resistance to height is held in 3 middle part setting of the tool apron The straight slot 31 that warm electric wire 22 passes through opens up on the side wall of 31 both sides of the straight slot and holds the slot that the high temperature resistant tangent line piece 21 is inserted into 32.The fire resistant electric wire 22 arranges between two convex blocks 14, is not pierced by the pressing sole interferingly with other component Power supply and control device are connected after plate 1.The voltage of the power supply is direct current 1V, and there are two types of tangent control patterns：One is seams One leads directly to electricity when processed, then power-on voltage can be a little bit smaller.Another kind is only just to be powered when playing seam, and be powered certain time After automatically power off, in this way, power-on voltage can be more greatly.

Embodiment 2, it is essentially the same with embodiment 1 referring to attached drawing 4-6, the difference is that it substitutes concora crush foot with high and low press foot.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.Such as：

1. tool apron can be made of other materials.Metal can be used, it can also be with nonmetallic.Surface can use the side of coating Method coats one layer of high-temperature insulation coating, can also be not added with coating, directly assemble automatically controlled hot melt tangential knife.Even if even tool apron is led Electricity could be used that.

2. tool apron can not had to, and automatically controlled hot melt tangential knife is directly installed in the deep gouge of presser feet bottom plate, deep gouge is left no room for manoeuvre Edge processing, or do not do insulation processing and all may be used.

Can also be filiform 3. automatically controlled hot melt tangential knife can be sheet.It even can removing in automatically controlled hot melt tangential knife Directly do high-temperature insulation processing in surface other than cutting edge.

Claims (8)

1. a kind of fervent presser feet of anti-Bird's Nest device, the fervent presser feet includes presser feet bottom plate（1）, hot melt tangential knife（2）, institute State presser feet bottom plate（1）The needle passing hole that needlework enter is held in upper setting（13）, the convex block upwardly extended is respectively set in the left and right sides（14）, It is characterized in that：Two convex blocks（14）Between form deep gouge（15）, the deep gouge（15）With needle passing hole（13）Between pass through Conducting wire straight slot（16）Connection, the deep gouge（15）Interior fixed automatically controlled hot melt tangential knife（2）, the automatically controlled hot melt tangential knife is by one High temperature resistant tangent line piece（21）With two fire resistant electric wires（22）Composition, after being powered to the fire resistant electric wire, the high temperature resistant Tangent line piece can generate heat to more than sewing thread fusing point, the high temperature resistant tangent line piece（21）Cutting edge meet to the conducting wire straight slot （16）.

2. a kind of fervent presser feet of anti-Bird's Nest device according to claim 1, it is characterised in that：It further include tool apron（3）, The tool apron（3）With the deep gouge（15）Shape is corresponding and is placed on the deep gouge（15）Interior presser feet bottom plate（1）On, the knife Seat（3）Two fire resistant electric wires are held in middle part setting（22）The straight slot passed through（31）, the straight slot（31）On the side wall of both sides It opens up and holds the high temperature resistant tangent line piece（21）The slot of insertion（32）.

3. a kind of fervent presser feet of anti-Bird's Nest device according to claim 1, it is characterised in that：Two high temperature resistants Electric wire（22）In two convex blocks（14）Between arrangement, be not pierced by with other component the presser feet bottom plate interferingly after connect electricity Source and control device.

4. a kind of fervent presser feet of anti-Bird's Nest device according to claim 2, it is characterised in that：The tool apron（3）Packet Aluminum or aluminum alloy pedestal is included, pedestal outer surface aoxidizes out one layer of insulation and heat safe alundum (Al2O3) film layer.

5. a kind of fervent presser feet of anti-Bird's Nest device according to claim 2, it is characterised in that：The tool apron（3）With The deep gouge（15）Interface at coat one layer of high-temperature Resistance Adhesives, by the high-temperature Resistance Adhesives by the tool apron（3） It is installed in the deep gouge（15）Interior presser feet bottom plate（1）On.

6. a kind of fervent presser feet of anti-Bird's Nest device according to claim 2, it is characterised in that：The tool apron with it is described One layer of high-temperature insulation adhesive is coated at the interface of automatically controlled hot melt tangential knife, by the high-temperature insulation adhesive by institute Automatically controlled hot melt tangential knife is stated to be installed in the tool apron.

7. a kind of fervent presser feet of anti-Bird's Nest device according to claim 3, it is characterised in that：The voltage of the power supply Within 36V.

8. a kind of fervent presser feet of anti-Bird's Nest device according to claim 3, it is characterised in that：The control device control Make two fire resistant electric wires（22）Between be powered always, alternatively, only rise seam when two fire resistant electric wires（22） Between be just powered and automatically powered off after a period of time that is powered.