CN104233662A

CN104233662A - Embroidery machine

Info

Publication number: CN104233662A
Application number: CN201410240794.9A
Authority: CN
Inventors: 松田安央
Original assignee: CANDART Corp Ltd
Current assignee: CANDART; CANDART Corp Ltd
Priority date: 2013-06-13
Filing date: 2014-05-30
Publication date: 2014-12-24
Also published as: HK1202903A1; JP2015000082A; KR20140145546A; JP6151979B2

Abstract

The invention provides an embroidery machine. The structure is as follows: an actuator is employed to carry out an action changing the lower limit position of a pressure plate and an action that a cut surface wire is hooked and held in a wire holding mechanism. In the embroidery machine, by utilization of rotation within 180 degrees of an eccentric pin on a flange tail end surface driven to rotate by the actuator, the up and down position of an adjusting plate is limited within a distance a. The pressure device drives a bearing, embedded into the L-shaped groove, of a connection rod to buckle with a horizontal groove when embroidery is carried out and limits the lower limit position of the pressure device within the distance a. When another color wire is switched, a needle rod driving section stops a needle rod and moves to the uppermost position. The bearing of the pressure driving connection rod is moved to a vertical groove from the horizontal groove, and is pulled to the uppermost position with the pressure driving section namely the pressure device. The actuator is driven, a hook goes under the pressure plate rising for a distance b from the embroidery surface and the cut surface wire is hooked.

Description

Embroidery machine

Technical field

The present invention relates to embroidery machine, the action that described embroidery machine carries out the lower position of presser foot is changed and the upper thread after hooking cut-out are also received into the action of line accommodating mechanism.

Background technology

In the past, the embroidery machine possessing Multi-head machine or single head machine was known to.For embroidery machine, existing arm and head structure integrally or the structure etc. making the structure of split detachably fit.

No matter any, be all utilize the driving force up and down that produced by the drive system of arm to limit the action of the shank of head, presser foot, sky equality.

But, the elemental motion moved up and down of presser foot is undertaken by the driving transmission from spindle cam, and the action of the trickle adjustment correspondingly making the lower position of presser foot (bottom dead center position) change with the thickness of processing cloth of embroidery object such as uses actuator to carry out as Japanese Unexamined Patent Publication 2008-006088 publication, the publicity of Japanese Unexamined Patent Publication 2000-042271 publication institute.

It is structure as follows in Japanese Unexamined Patent Publication 2008-006088 publication: the guiding mechanism being provided with the height of the bottom dead center position for adjusting compress leg (presser foot) on multiple sewing machine heads of multi-head embroidery machine, utilize connection shaft to link each guiding mechanism, and utilize actuator to drive connection shaft.

And, structure as follows in Japanese Unexamined Patent Publication 2000-042271 publication: in order to regulate the height of the bottom dead center position of the compress of lifting along with sewing speed, for the elevating mechanism of the elevating movement rotary motion of main shaft being transformed to compress bar, the governor motion of the height of the bottom dead center position for regulating compress is set, and utilizes stepper motor to adjust to drive this governor motion.

But, for embroidery machine, except embroidering with monochromatic line as the mark embroidery of Work Clothes, normally use the line of multiple color accordingly with the pattern of embroidery.Therefore, the shank of the quantity of coincideing with the number of colors of the line used in embroidery is assembled with at sewing machine head.

In the past, when switching color line, previous upper thread being reserved several centimeters from pin hole and cuts off, sewing machine arm directly selects the shank of next color line to proceed embroidery.

Therefore, there is following problems: embroidering in the process of carrying out, deviating from from pin hole at previous cut-off upper thread, and when again will continue embroidery with this color line, hollow joint (empty Sew い) occurs thus this embroidery becomes defective work.

In order to solve this problem, needing the end of the upper thread after by cut-out to be pressed into or to put into suitable position in the mode not making it deviate from from pin hole until when next time uses, but needing the actuator of the device action for making this press-in or storage in addition.

Because the adjustment of the lower position (bottom dead center position) for presser foot and the pressing of cut-off upper thread are provided with actuator respectively, therefore, not only produce the problem that the larger-scale unit of sewing machine arm side is such, also produce the problem causing cost increase such because electric actuator is expensive.

Summary of the invention

The invention solves above-mentioned existing problem, its object is to provide a kind of embroidery machine, the action that this embroidery machine uses 1 actuator to carry out the lower position of presser foot is changed and the upper thread after hooking cut-out also receive the action of both actions of online accommodating mechanism.

In order to solve the problem, embroidery machine of the present invention correspondingly makes the height change of the lower position of presser foot with the thickness as the processing cloth of object of embroidering, and wherein, described embroidery machine possesses by the driving mechanism formed with lower component: electric actuator, rotating shaft, the power of this electric actuator is delivered to above-mentioned rotating shaft by transmission mechanism, thus described rotating shaft rotates, cam pin, it is arranged on the terminal surface of this rotating shaft, adjustable plate, it engages with this cam pin, and moves up and down in the scope of regulation along with the rotation of this cam pin, L word groove, it is formed with vertical channel, band fillet square groove, level trough continuously on a face of this adjustable plate, and presser foot driven roller, it links coaxially with interlock roller, above-mentioned interlock roller with shank drive division for fulcrum and compress drive division link, above-mentioned presser foot driven roller is embedded in above-mentioned L word groove, when performing embroidery and making, above-mentioned presser foot driven roller above-mentioned level trough part reciprocating motion and follow the upper-lower position of above-mentioned adjustable plate, when not performing embroidery and making, above-mentioned presser foot driven roller follows the upper-lower position of above-mentioned interlock roller in the part of above-mentioned vertical channel, above-mentioned embroidery machine is configured to, above-mentioned electric actuator is correspondingly controlled with the thickness of the processing cloth as above-mentioned embroidery object, the lower position moved up and down of the above-mentioned presser foot transmitted via above-mentioned driving mechanism by the above-mentioned interlock roller from above-mentioned shank drive division is thus adjusted to the height corresponding to the thickness of the processing cloth as above-mentioned embroidery object.

This embroidery machine is such as configured to, also possesses hook mechanism, above-mentioned hook mechanism is retreated by the power transmitted via above-mentioned transmission mechanism from above-mentioned electric actuator, when presser foot driven roller above-mentioned when not performing above-mentioned embroidery and making is in the part of the above-mentioned vertical channel of above-mentioned L word groove, the moving up and down independently to be positioned at together with the pin of shank end of the rotation of above-mentioned presser foot and above-mentioned cam pin and above-mentioned adjustable plate makes the top position of required upper limit position than embroidering, the hook of above-mentioned hook mechanism hooks the above-mentioned upper thread from above-mentioned pin to downward-extension after the upper thread of above-mentioned pin is cut off and is received into line accommodating mechanism.Further, in this embroidery machine, such as above-mentioned electric actuator is impulse motor or servo motor.

Like this, in the present invention, the upper thread after cut-out can be hooked and receive online accommodating mechanism, therefore, it is possible to play following effect: eliminate previous cut-off upper thread deviate from from pin hole and for again utilizing other color lines to continue embroidery time, there is hollow joint thus embroidery becomes the such undesirable condition of defective work.

And, the action that the present invention uses 1 actuator to carry out the lower position of presser foot is changed and the upper thread after hooking cut-out are also received into the action of both actions of line accommodating mechanism, therefore, without the need to possessing 2 actuators in order to different 2 actions, the effect of economy is played.

Accompanying drawing explanation

Fig. 1 is the stereogram of the outward appearance of the embroidery machine that embodiments of the invention 1 are shown.

Fig. 2 is a part for the sewing machine arm of the embroidery machine that embodiment 1 is shown and the stereogram of the outward appearance of sewing machine head that engages with this sewing machine arm.

(a) in Fig. 3 is the figure of the sewing machine arm of the embroidery machine that embodiment 1 is only shown and the major part of sewing machine head, and (b) makes the shank portion drive division of sewing machine arm 90-degree rotation and the figure illustrated left.

(a) in Fig. 4 ~ (c) is the figure that the compress Height Adjustment plate of sewing machine arm, the snap-fit relationship between cam pin and the bearing of compress drive link are shown, d () ~ (f) is the figure of the action that the presser foot linked with the action of compress Height Adjustment plate is shown, (g) ~ (i) is the figure of the relation illustrated between the action of presser foot and the action of hook portion.

(a) in Fig. 5 illustrates the figure of the state of the pin after the stitching step of end 1 color and upper thread, b () is the figure that the state cutting off upper thread is shown, c () illustrates that hook portion hooks the figure of the state of the upper thread after cut-out, (d) illustrates the upper thread ends accept that the hooks figure in the state of incorporating section.

Label declaration

1: embroidery machine;

2: sewing machine table;

3: embroidery frame;

4: lower shuttle portion;

5: sewing machine head;

6: sewing machine arm;

7 (7a, 7b): erect setting unit;

8: bridge portion;

9: main shaft;

11: colour changing portion;

12: colour changing axle;

13: upper thread platform;

14: tube placing device;

15: threading apparatus;

16: balance portion;

17: tensioning setting unit;

18: shank;

19: presser foot;

21: pin;

22: head rail;

23: actuator;

24: drive source system;

25: shank portion drive division;

26: shank portion;

27: Timing Belt;

28: hook portion maintaining part;

28a: driving belt clamping part;

29: hook;

31: point supporting plate;

32: eccentric pin shaft;

33: cam pin flange;

34: adjustable plate;

35: toothed belt is taken turns;

36: cam pin;

37: elongated slot;

38: guiding groove;

39: directing pin;

41: lowermost position is put;

42: uppermost position in fig-ure;

43:L word groove;

43a: vertical channel;

43b: band fillet square groove;

43c: level trough;

44: arm power transmission shaft;

45: shank drive division;

45a: snap openings;

46: compress drive division;

46a: level trough;

46b: engaging teat;

47: shank drive division actuating arm;

47a: force axle;

48: compress drive link;

49: upper end bolt;

51 (51a, 51b): bearing;

52: shank driven part;

52a: engaging teat;

53: compress driven part;

53a: snap openings;

54: presser foot maintaining part;

55: spline axle;

56: power transmission shaft;

57: bearing uppermost position in fig-ure;

58: lowermost position is put;

59: uppermost position in fig-ure;

61: do not perform needlework location;

62: upper thread;

63: active blade;

64: line end incorporating section.

Detailed description of the invention

Below, with reference to accompanying drawing, embodiments of the present invention are described.

1st embodiment

Fig. 1 is the stereogram of the outward appearance of the embroidery machine that embodiments of the invention 1 are shown.As shown in Figure 1, embroidery machine 1 possesses: sewing machine table 2 and embroidery frame 3, and this embroidery frame 3 is expanded significantly at the central portion of this sewing machine table 2.

Shuttle portion 4 under the inner side of embroidery frame 3 is provided with multiple (in the example of Fig. 1 being 4).Embroidery frame 3 freely moves on ground, left and right forwards, backwards according to the program of embroidery Letter of Instructions after tensioning arranges embroidery medium.

Further, be configured with multiple (in the example of Fig. 1 being 4) sewing machine head 5 in the top position corresponding with lower shuttle portion 4, the head rail described later of sewing machine head 5 is held in the guide rail maintaining part of sewing machine arm 6.

The sewing machine table 2 of embroidery machine 1 is formed with gate framework, and this gate framework is by the erecting setting unit 7 (7a, 7b) and these 2 are erected the bridge portion 8 that setting unit 7 links up and form of both ends, left and right being arranged on sewing machine table 2.

Though be not particularly illustrated, 4 sewing machine arms 6 utilize the fixed part arranged overleaf to be fixed on the bridge portion 8 of gate framework.1 main shaft 9 has been inserted in these 4 sewing machine arms 6.

What one end of main shaft 9 (being the end of right in Fig. 1) was supported on a side (being right in Fig. 1) of gate framework by axle erects setting unit 7 (7b).In the one end of the main shaft 9 supported by axle, although be hidden in the inside that erects setting unit 7b in FIG and cannot see, this one end of main shaft 9 is fixedly installed belt wheel, hangs with driving belt at the spaced winding with the belt wheel eliminating illustrated motor.Utilize this motor to carry out driving main shaft 9 to rotate.

Further, the bridge portion 8 of gate framework be fixed with sewing machine arm 6 face the same face on be equipped with colour changing portion 11, multiple shanks of the 11 pairs of sewing machine heads 5 in colour changing portion are alternatively selected.Colour changing portion 11 by insert in 4 sewing machine heads colour changing axle 12 move axially the shank being selected to alternative.

Further, be equipped with upper thread platform 13 at the upper surface in the bridge portion 8 of gate framework, this upper thread platform 13 has the length of the length direction roughly corresponding with the arrangement width of the sewing machine head 5 being arranged with 4.Upper thread platform 13 is made up of flat tube placing device 14 and shaft-like threading apparatus 15.

Fig. 2 is a part for the sewing machine arm 6 of the embroidery machine 1 that Fig. 1 is shown and the stereogram of the outward appearance of sewing machine head 5 that engages with this sewing machine arm 6.This sewing machine head 5 possesses 9 shank portions.That is, this embroidery machine 1 can carry out the embroidery that is made up of the line of 9 kinds of colors.

Above-mentioned shank portion possesses balance portion 16, tensioning setting unit 17, shank 18 and presser foot 19.At the end of shank 18, pin 21 is installed.Though be not particularly illustrated, in the tube placing device 14 shown in Fig. 1, be placed with the upper thread of shades of colour for embroidering on pipes such as being wound in paper tube.

The line of drawing from pipe is drawn after threading apparatus 14 further at lodge, by the sky flat hole in the balance portion 16 of the sewing machine head 5 shown in Fig. 2, and drawn further along shank portion, be wound in tensioning setting unit 17 and the setting that is tensioned, eventually through the pin hole of the pin 21 of the end of shank 18.

This sewing machine head 5 by the back side head rail 22 and be held in guide rail maintaining part in the mode that can slide, this guide rail maintaining part is hidden in the back side and cannot sees in the figure of sewing machine arm 6.

Though be not particularly illustrated, but the rotation of the spindle cam be fixed on the main shaft 9 of Fig. 1 and sky periphery cam is converted to by means of respective cam follower with the arm mechanism of cam follower interlock the driving force moved up and down by sewing machine arm 6, and this upper and lower driving force is delivered to the shank 18 in shank portion and balance 16 and shank 18 and balance 16 are moved up and down.

The details of presser foot 19 describes later, presser foot 19 is embedded in the shank 18 in shank portion from outside, and move up and down in linkage with moving up and down of shank 18, and presser foot 19 utilizes and is controlled by the guiding mechanism described later that electric actuator 23 drives the lower position that moves up and down.

(a) of Fig. 3 is the figure that the sewing machine arm 6 shown in Fig. 2 of the embroidery machine 1 shown in Fig. 1 and the major part of sewing machine head 5 are only shown, (b) of Fig. 3 makes the shank portion drive division of sewing machine arm 6 90-degree rotation and the figure illustrated left.

(a) ~ (c) of Fig. 4 is the figure that the compress Height Adjustment plate of sewing machine arm 6, the snap-fit relationship between cam pin and the bearing of compress drive link are shown, (d) ~ (f) of Fig. 4 is the figure of the action that the presser foot 19 linked with the action of compress Height Adjustment plate is shown, (g) ~ (i) of Fig. 4 is the figure of the relation that the action of presser foot 19 and the action of hook are shown.

(a) of Fig. 3 illustrates drive source system 24 and shank portion drive division 25 structure as the major part of the action carrying out making the lower position of the presser foot of sewing machine arm 6 change with 1 actuator and both actions of hooking the upper thread after cut-out, and the structure of shank portion 26 as the major part of sewing machine head 5 is shown.

Drive source system 24 possesses with lower part as Suo Shi (a) of Fig. 3: the electric actuator 23 that stepper motor is as shown in Figure 2 formed, Timing Belt 27, hook maintaining part 28, hook 29, point supporting plate 31, eccentric pin shaft 32, cam pin flange 33 and adjustable plate 34.

The synchronous pulley 35 of the rotating shaft synchronous pulley that Timing Belt 27 hangs around being in the back side in the drawings of electric actuator 23 and cannot see and eccentric pin shaft 32, and by driving reciprocating rotary.

Hook maintaining part 28 utilizes band clamping part 28a to be fixed on Timing Belt 27, and along with Timing Belt 27 reciprocating rotary then hook 29 is retreated.

The back of the コ font of point supporting plate 31 is fixed in the not shown housing of sewing machine arm 6, utilizes the two-arm of the コ font of point supporting plate 31 that eccentric pin shaft 32 is held in and can be rotated.Projecting as shown in Fig. 4 (a), (b), (c) on the end face of the cam pin flange 33 of eccentric pin shaft 32 have cam pin 36.

This cam pin 36 is embedded at the elongated slot 37 that formed of the longer ground of the lower, transverse of adjustable plate 34.When that is cam pin flange 33 rotates eccentric pin shaft 32, cam pin 36 eccentric rotary.

The directing pin 39 utilizing guiding groove shown in (a) of Fig. 3 38 and be embedded in this guiding groove 38 to limit adjustable plate 34 due to the eccentric rotary of cam pin 36 transverse shifting, as shown in (a), (b) of Fig. 4, move lowermost position according to the control of regulation up and down and put distance a between 41 and uppermost position in fig-ure 42.Distance a is such as 5mm ~ 7mm.

Adjustable plate 34 is parts of the compress height for adjusting presser foot, when performing embroidery, as shown in (d), (e) of Fig. 4, move up and down between distance a according to the control corresponding with the thickness of cloth (below also referred to as medium of embroidering) of embroidery object.

As shown in (a) of Fig. 3 and (a), (b), (c) of Fig. 4, a face of this adjustable plate 34 is provided with the L word groove 43 formed continuously by vertical channel 43a, band fillet square groove 43b and level trough 43c.

A side corresponding thereto, the shank portion drive division 25 shown in (a), (b) of Fig. 3 possesses arm power transmission shaft 44, is embedded in shank drive division 45 and the compress drive division 46 in the outside of this arm power transmission shaft 44.Shank drive division 45 possesses the snap openings 45a engaged with the engaging protrusion of shank driven part at front surface, the upper end of shank drive division actuating arm 47 engages with the back side of shank drive division 45.

The force axle 47a of shank drive division actuating arm 47 and cam follower link, this cam follower with to be linked and the side face being fixed on the not shown spindle cam of the main shaft 9 shown in Fig. 1 slidingly contacts, the bottom of shank drive division actuating arm 47 is supported on the housing of sewing machine arm 6 by axle by arm axle.

Shank drive division actuating arm 47 amplifies being delivered to moving up and down of force axle 47a from cam follower and being delivered to shank drive division 45 from terminal part.The upper end of compress drive link 48 is linked to this shank drive division 45 by bolt 49.

Pair of bearings 51 (51a, 51b) is co-axially mounted on the bottom of compress drive link 48.Bearing 51b is embedded in the level trough 46a of a side of compress drive division 46.The front surface of compress drive division 46 is formed the engaging teat 46b engaged with the compress driven part in shank portion.

Another bearing 51a in pair of bearings 51 is embedded in the L word groove 43 of adjustable plate 34 as Suo Shi (a), (b), (c) of Fig. 4.In addition, in (a) of Fig. 3, in order to illustrate the shape of the L word groove 43 of adjustable plate 34, adjustable plate 34 and the snap-fit relationship of eccentric pin shaft 32, the bearing 51a of adjustable plate 34 and compress drive link 48 is illustrated dividually.

On the other hand, the shank portion 26 of sewing machine head 5 is made up of shank 18, shank driven part 52, compress driven part 53 and presser foot maintaining part 54.

Shank driven part 52 is fixed on shank 18.This shank driven part 52 possesses engaging teat 52a.Engaging teat 52a engages with the snap openings 45a of the shank drive division 45 of the shank portion drive division 25 of sewing machine arm 6.

Compress driven part 53 is being embedded in shank 18 than shank driven part 52 position on the lower in the mode that can slide.Compress driven part 53 possesses snap openings 53a on the upper end of the opposed faces with sewing machine arm 6.Snap openings 53a engages with the engaging teat 46b of the compress drive division 46 of the shank portion drive division 25 of sewing machine arm 6.

Further, compress driven part 53 forms the holding section with spline axle 55 in the side contrary with the snap openings 53a of upper end.Shank driven part 52 is fixed in the upper end of spline axle 55, makes the bottom of spline axle 55 be sticked in the holding section with compress driven part 53 in the mode that can slide, thus forbid the rotation of compress driven part 53 cast-over bar 18.

Presser foot maintaining part 54 is fixed by short power transmission shaft 56 and is linked to compress driven part 53, and presser foot maintaining part 54 keeps presser foot 19 in bottom, and moves up and down along with moving up and down of compress driven part 53.

The shank drive division 45 of the shank portion drive division 25 shown in (a), (b) of Fig. 3 is in order to move to uppermost position in fig-ure when switching to other color lines to make shank 18 stop.Thus, compress drive link 48 is also lifted to uppermost position in fig-ure together with compress drive division 46.

At this moment, adjustable plate 34 can only move up and down as described above cam pin 36 rotating eccentricity difference (distance between 41 and uppermost position in fig-ure 42 is put a) in lowermost position, and the bearing 51a of the bottom of compress drive link 48 as Suo Shi (c) of Fig. 4 by lift to putting the bearing uppermost position in fig-ure 57 that 41 leave the distance b larger than distance a from lowermost position.

Thus, as described above, the distance a between 41 and uppermost position in fig-ure 42 is put in the lowermost position shown in (a), (b) that adjustable plate 34 can only move up and down Fig. 4, therefore, bearing 51a cannot stay in the part of the level trough 43c of the L word groove 43 of the adjustable plate 34 when performing embroidery, but moves to the part of vertical channel 43a along band fillet square groove 43b as shown in (c) of Fig. 4.

Correspondingly, presser foot 19 is also by bearing 51a, bearing 51b, level trough 46a, compress drive division 46, compress drive division 53 and shift position in putting between 58 and uppermost position in fig-ure 59 distance a from the lowermost position shown in (d), (e) of Fig. 4, and what move to the distance b significantly upwards left does not perform needlework location 61.

In this condition, even if actuator 23 is driven, Timing Belt 27 reciprocating rotary then eccentric pin shaft 32 is rotated, even if be that is installed on cam pin 36 eccentric rotary of cam pin flange 33, even if that is adjustable plate 34 moves up and down, bearing 51a is also embedded in the vertical channel 43a of L word groove 43, and therefore, compress driven part 52 i.e. presser foot 19 can not move from the uppermost position in fig-ure 61 shown in (f) of Fig. 4.

In this moment drive actuator 23, Timing Belt 27 reciprocating rotary, hook maintaining part 28 i.e. hook 28a is retreated by driving.Thus, as shown in (f), (i) of Fig. 4, hook 28a inserts the mode action in the gap of the distance b of the below in hole 58 and hooks the end extended from the pin hole of pin 21 of cut-off upper thread downwards with the pin being drilled into presser foot 19.

(a) of Fig. 5 is the figure of the state of pin 21 after the stitching step that end 1 color is shown and upper thread 62, (b) of Fig. 5 illustrates the figure utilizing the active blade 63 in lower shuttle portion 4 to cut off the state before upper thread 62, (c) of Fig. 5 illustrates that hook 28a hooks the figure of the state of the upper thread 62 after cut-out, and (d) of Fig. 5 illustrates the figure upper thread end 62a hooked being received into the state of line end incorporating section 64.Like this, hook 28a by the upper thread ends accept that hooks in line end incorporating section.

When the shank portion 26 shown in (a) of Fig. 3 performs embroidery, the shank drive division 45 of the shank portion drive division 25 shown in (a), (b) of Fig. 3 declines downwards and moves up and down.As shown in (a), (b) of Fig. 4, bearing 51a engages with the level trough 43c of L word groove 43 and slides in the horizontal direction.Thus, presser foot 19 presses embroidery medium in mode lower position being limited in the position corresponding with the upper-lower position of adjustable plate 34.

Here, when the thickness with embroidery medium utilizes controlling organization drive actuator 23 accordingly, the anglec of rotation of rotary distance, the i.e. eccentric pin shaft 32 corresponding to this driving of Timing Belt 27, be namely passed to adjustable plate 34 with corresponding the moving up and down of eccentric rotary amount of cam pin 36.

Moving up and down via the level trough 46a of bearing 51a, the 51b of the level trough 43c of L word groove 43, compress drive link 48, compress drive division 46, compress drive division 46, engaging teat 46b, snap openings 53a, compress driven part 53 and be delivered to presser foot 19 of adjustable plate 34.Thereby, it is possible to make the lower position of presser foot 19 change at any time.

Like this, according to embodiments of the invention 1, the action that 1 actuator can be used to carry out the lower position of presser foot is changed and the upper thread after hooking cut-out are also received into the action of both actions of line accommodating mechanism.

Like this, the present invention can use and carries out making the action of the lower limit variation of presser foot and the upper thread after hooking cut-out and be received in the embroidery machine of the action of line accommodating mechanism.

Claims

1. an embroidery machine, it correspondingly makes the height change of the lower position of presser foot with the thickness as the processing cloth of object of embroidering, and it is characterized in that,

Described embroidery machine possesses by the driving mechanism formed with lower component:

Electric actuator;

Rotating shaft, the power of this electric actuator is delivered to described rotating shaft by transmission mechanism, thus described rotating shaft rotates;

Cam pin, it is arranged on the terminal surface of this rotating shaft;

Adjustable plate, it engages with this cam pin, and moves up and down in the scope of regulation along with the rotation of this cam pin;

L word groove, it is formed with vertical channel, band fillet square groove, level trough continuously on a face of this adjustable plate; And

Presser foot driven roller, it links coaxially with interlock roller, described interlock roller with shank drive division for fulcrum and compress drive division link, described presser foot driven roller is embedded in described L word groove, when performing embroidery and making, described presser foot driven roller described level trough part reciprocating motion and follow the upper-lower position of described adjustable plate, when not performing embroidery and making, described presser foot driven roller follows the upper-lower position of described interlock roller in the part of described vertical channel

Correspondingly control described electric actuator with the thickness of the processing cloth as described embroidery object, the lower position moved up and down of the described presser foot transmitted via described driving mechanism by the described interlock roller from described shank drive division is thus adjusted to the height corresponding to the thickness of the processing cloth as described embroidery object.

2. embroidery machine according to claim 1, is characterized in that,

Described embroidery machine also possesses hook mechanism, and described hook mechanism is retreated by the power transmitted via described transmission mechanism from described electric actuator,

When presser foot driven roller described when not performing described embroidery and making is in the part of the described vertical channel of described L word groove, the moving up and down independently to be positioned at together with the pin of shank end of the rotation of described presser foot and described cam pin and described adjustable plate makes the top position of required upper limit position than embroidering

The hook of described hook mechanism hooks the described upper thread from described pin to downward-extension after the upper thread of described pin is cut off and is received into line accommodating mechanism.

3. embroidery machine according to claim 1 and 2, is characterized in that,

Described electric actuator is impulse motor or servo motor.