CN1948585A - Differential material feeding device of sewing machine - Google Patents

Differential material feeding device of sewing machine Download PDF

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Publication number
CN1948585A
CN1948585A CN 200610117968 CN200610117968A CN1948585A CN 1948585 A CN1948585 A CN 1948585A CN 200610117968 CN200610117968 CN 200610117968 CN 200610117968 A CN200610117968 A CN 200610117968A CN 1948585 A CN1948585 A CN 1948585A
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China
Prior art keywords
differential
rod
feeding
handle
mentioned
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Pending
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CN 200610117968
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Chinese (zh)
Inventor
张春木
王挺
蔡景眼
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Zhongjie Sewing Machine Co Ltd
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Zhongjie Sewing Machine Co Ltd
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Application filed by Zhongjie Sewing Machine Co Ltd filed Critical Zhongjie Sewing Machine Co Ltd
Priority to CN 200610117968 priority Critical patent/CN1948585A/en
Publication of CN1948585A publication Critical patent/CN1948585A/en
Pending legal-status Critical Current

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Abstract

The invention offers a differential feeder of sewing machine, which belongs to the field of mechanical technique. It solves problems of laboursome operation and low stability of existing technique. The device contains feed dental frame and differential dental frame which are set on framework of sewing machine. There are feed tooth and differential tooth on feed dental frame and differential dental frame separately. The sewing machine also has power main shaft and drive shaft. Power main shaft drives drive shaft to roll by drive structure. Feed structure is set between drive shaft and feed dental frame, which can translate feed dental frame on framework with drive shaft rotating. There is no similar differential structure between drive shaft and differential dental frame. The differential feeder has simple and compact structure, high using stability and simple processing production.

Description

The differential material feeding device of Sewing machines
Technical field
The invention belongs to field of mechanical technique, relate to the differential material feeding device on a kind of Sewing machines, particularly Sewing machines.
Background technology
The position of side seam and so under the overseam of the eckband of T-shirt, the cuff of clothes, the long sleeves mouth is that the operator manually makes and finishes fully on common Sewing machines.As can be seen, the feasible like this intensity of making is big, and operating efficiency is also lower.
Through long-term exploration and research, at the problems referred to above people differential material feeding device is set on Sewing machines, realize differential feed by it, thereby reduce working strength, and increase work efficiency.
Just provide a kind of " the differential cloth-feeding device of cylindricality platform-type Sewing machines " as China Patent No. 87206463.8, it comprises active retainer and the differential retainer that is installed on the sewing machine frame, and is respectively equipped with main feed dog and differential cloth-feeding tooth on active retainer and differential retainer.The Sewing machines machine is in the process of making, and initiatively the translational speed of feed dog and differential cloth-feeding tooth is inconsistent, thereby realizes differential feed.Differential retainer in this patent and active retainer drive its action by a transmission mechanism respectively.That is to say that transmission mechanism is two groups, make differential cloth-feeding apparatus structure complexity like this, simultaneously, make that so also required drive is bigger in the Sewing machines use.
In addition, adjust for the differential feed to the differential cloth-feeding device, be provided with a guiding mechanism in this device, this guiding mechanism mainly is to stir the sliding part that is positioned at its prong by fork.As can be seen, such structure makes that the frictional force between fork and the sliding part is bigger, requires great effort in operating process.Certainly, may wear and tear between fork and the sliding part after use a period of time, and influence is to the normal adjustment of differential feed.
The differential cloth-feeding device of existing other Sewing machines also exists similar problem.
Summary of the invention
The objective of the invention is at existing in prior technology the problems referred to above, a kind of differential material feeding device of simple in structure, Sewing machines that stability in use is high is provided.
Purpose of the present invention can realize by following technical proposal: a kind of differential material feeding device of Sewing machines, comprise feeding retainer and the differential retainer be located on the sewing machine frame, be respectively equipped with feeding tooth and differential tooth on feeding retainer and the differential retainer, also be provided with power spindle and power transmission shaft on the Sewing machines, power spindle drives power transmission shaft by transmission mechanism and rotates, be provided with between power transmission shaft and the above-mentioned feeding retainer when power transmission shaft and rotate the feed mechanism that can make the translation on frame of feeding retainer, it is characterized in that, be provided with between described power transmission shaft and the above-mentioned differential retainer when power transmission shaft and rotate the differential attachment that can make the translation on frame of differential retainer.
In the differential material feeding device of this Sewing machines, can drive power transmission shaft by transmission mechanism in the power spindle rotation process and rotate.Because above-mentioned feeding retainer is by feed mechanism and propeller shaft couplings, differential retainer is by differential attachment and propeller shaft couplings.Therefore, just make feeding retainer and differential retainer in the power transmission shaft rotation process, and realize differential conveying the material of being made by the differential tooth on it and feeding tooth along with translation on frame.
In the differential material feeding device of above-mentioned Sewing machines, described differential attachment comprises differential handle and drive link one, one end of differential handle and above-mentioned power transmission shaft are connected, and an end of drive link one is hinged on the other end of differential handle, and the other end of drive link one and above-mentioned differential retainer are hinged.Power transmission shaft differential handle in rotation process can drive the hinged place deflection certain angle of drive link one around it and differential handle along with swing in the differential handle swing process, just can drive above-mentioned differential retainer translation on frame after drive link one deflection.
As another kind of situation, in the differential material feeding device of above-mentioned Sewing machines, described differential attachment is differential handle, and an end of differential handle is connected on the power transmission shaft, and the other end is provided with bar hole, and above-mentioned differential retainer is provided with plush copper, and plush copper is positioned at bar hole.Power transmission shaft differential handle in rotation process can be stirred plush copper along with swing by the bar hole position on it in the differential handle swing process, thereby drives above-mentioned differential retainer translation on frame.
In the differential material feeding device of above-mentioned Sewing machines, described feed mechanism comprises feeding handle and drive link two, one end of feeding handle and above-mentioned power transmission shaft are connected, and an end of drive link two is hinged on the other end of feeding handle, and the other end of drive link two and above-mentioned feeding retainer are hinged.Power transmission shaft feeding handle in rotation process can drive the hinged place deflection certain angle of drive link two around it and feeding handle along with swing in the feeding handle swing process, just can drive above-mentioned feeding retainer translation on frame after drive link two deflections.
As another kind of situation, in the differential material feeding device of above-mentioned Sewing machines, described feed mechanism is the feeding handle, and an end of feeding handle is connected on the power transmission shaft, and the other end is provided with bar hole, and above-mentioned feeding retainer is provided with plush copper, and plush copper is positioned at bar hole.Power transmission shaft feeding handle in rotation process can be stirred plush copper along with swing by the bar hole position on it in the feeding handle swing process, thereby drives above-mentioned feeding retainer translation on frame.
In the differential material feeding device of above-mentioned Sewing machines, described transmission mechanism is the cam and the crank connecting link that is connected on the power transmission shaft that is connected on the power spindle, is provided with the swing mechanism that can make the crank connecting link swing along with the rotation of cam between cam and the crank connecting link.
Power spindle rotation process cam is being followed and is being rotated, and can make the crank connecting link swing by swing mechanism, because crank connecting link is connected on the power transmission shaft.That is to say, just drive power transmission shaft in the crank connecting link swing process and rotate.
Swing mechanism has two kinds of schemes to adopt, as first kind of scheme, described swing mechanism comprises connecting rod one and connecting rod two, one end of connecting rod one is provided with the cooperation circular hole that its aperture is slightly larger than the cam external diameter, and the cooperation circle hole sleeve of connecting rod one is connected on the above-mentioned cam, one end of the other end of connecting rod one and connecting rod two is hinged, and the other end of connecting rod two and above-mentioned crank connecting link are hinged.
Cam can promote the cooperation circular hole place of connecting rod one in rotation process, that is to say to make that connecting rod one can knee-action under action of cam.Just can drive the crank connecting link swing by connecting rod two in connecting rod one course of action.
As second kind of scheme, described swing mechanism comprises connecting rod one, connecting rod two, be with spring on the connecting rod one, be resisted against the sidepiece of cam at an end of the elastic force effect lower link one of spring, one end of the other end of connecting rod one and connecting rod two is hinged, and the other end of connecting rod two and above-mentioned crank connecting link are hinged.Same, because an end of connecting rod one is resisted against on the cam, obviously, will make connecting rod one knee-action by roof pressure connecting rod one in the cam rotation process under the effect of spring, just driven the crank connecting link swing by connecting rod two.
In the differential material feeding device of above-mentioned Sewing machines, described swing mechanism also comprises driving crank connecting rod and the connecting rod of being located between connecting rod two and the crank connecting link three, the middle part of driving crank connecting rod is hinged on the frame, one end of driving crank connecting rod and above-mentioned connecting rod two are hinged, one end of the other end of driving crank connecting rod and connecting rod three is hinged, and the other end of connecting rod three and above-mentioned crank connecting link are hinged.Drive the driving crank connecting rod in the connecting rod two knee-action processes around its hinged place swing, swing by the connecting rod three final crank connecting links that drive in the driving crank connecting rod swing process with frame.Simultaneously, this structure has also increased transmission stability.
In the differential material feeding device of above-mentioned Sewing machines, movable sleeve is connected to one and adjusts piece on the described differential handle, above-mentioned differential attachment is arranged on to be adjusted between piece and the differential retainer, and the adjustment piece is connected with a guiding mechanism that the adjustment piece is slided on differential handle.
By preceding structure as can be seen, differential handle and feeding handle all are connected on the power transmission shaft.Oscillator arc in the point-to-point speed of feeding retainer and power transmission shaft unit interval is invariable.Can adjust its position on differential handle owing to adjust piece by guiding mechanism, just make the point-to-point speed of differential retainer and the oscillator arc of power transmission shaft in the unit interval to change by guiding mechanism.That is to say, make that finally the point-to-point speed on frame of feeding retainer and differential retainer is different.
In the differential material feeding device of above-mentioned Sewing machines, described guiding mechanism is the adjusting rod that is shaft-like, and an end of adjusting rod is hinged on the frame, and its middle part is hinged with above-mentioned adjustment piece, also be provided with positioner on frame, the other end of adjusting rod is positioned at the positioner place.Pull adjusting rod and make it, in swing process, can drive the adjustment piece and on differential handle, slide around swinging with the hinged place of frame.Certainly,, just adjusting rod can be fixed, prevent the adjusting rod swing by positioner in case adjust piece after the position on the differential handle is determined.
In the differential material feeding device of above-mentioned Sewing machines, described positioner is the adjustable plate that is connected in the frame outside, has curved bar shaped locating hole on the adjustable plate, and screw is through on the bar shaped locating hole and can links together with above-mentioned adjusting rod.Adjusting rod and adjustable plate can be fixed together firmly by such structure.
In the differential material feeding device of above-mentioned Sewing machines, described guiding mechanism also comprises regulates connecting rod one, adjusting connecting rod two, handle and connecting axle, connecting axle is through on the frame its end and handle that is in the frame outside and is connected, the end that is in the frame inboard is connected with adjusting connecting rod one, the other end of regulating connecting rod one is hinged with an end of regulating connecting rod two, regulates the other end of connecting rod two and above-mentioned adjusting rod and is hinged.Pull handle and drive one swing of adjusting connecting rod, just can drive the adjusting rod swing by regulating connecting rod two in connecting rod one swing process by connecting axle.
In the differential material feeding device of above-mentioned Sewing machines, also be provided with the scale hole that is bar shaped on the described adjustable plate, above-mentioned handle is provided with index line, and the position that has index line on the handle is in place, scale hole.Can make the operator get information about the amount of regulating by scale hole and handle with index line.
In the differential material feeding device of above-mentioned Sewing machines, also be fixed with the limited location fork that top has prong on the described frame, the width of prong is slightly larger than the width of above-mentioned adjusting rod, and adjusting rod is positioned at the prong of limited location fork.In the hinged place swing process of adjusting rod around it and frame, it is up and down in the prong of limited location fork.Just can prevent that by limited location fork adjusting rod from shaking in swing process.
Compared with prior art, the differential material feeding device of this Sewing machines drives differential retainer and the translation on frame of feeding retainer by same transmission mechanism.Therefore, such structure makes this apparatus structure simply compact.
Simultaneously, adjust in the differential amount process by guiding mechanism and realize that guiding mechanism is similar to a linkage, therefore, its stable drive, and it is less to drive the dynamics of its action, and processing and manufacturing is also fairly simple.
Description of drawings
Fig. 1 is the perspective view of the differential material feeding device of this Sewing machines.
Fig. 2 is the structural representation at adjustable plate and handle place in the differential material feeding device of this Sewing machines.
Fig. 3 is the structural representation at differential attachment place among the embodiment two.
Fig. 4 is the structural representation at feed mechanism place among the embodiment three.
Fig. 5 is the structural representation at transmission mechanism place among the embodiment four.
Among the figure, 1, frame; 2, feeding retainer; 2a, feeding tooth; 2b, plush copper; 3, differential retainer; 3a, differential tooth; 3b, plush copper; 4, power spindle; 5, power transmission shaft; 6, differential handle; 6a, bar hole; 7, drive link one; 8, feeding handle; 8a, bar hole; 9, drive link two; 10, cam; 11, crank connecting link; 12, connecting rod one; 12a, cooperation circular hole; 13, connecting rod two; 14, spring; 15, connecting rod three; 16, driving crank connecting rod; 17, adjust piece; 18, adjusting rod; 19, adjustable plate; 19a, bar shaped locating hole; 19b, scale hole; 20, handle; 20a, index line; 21, limited location fork; 21a, prong; 22, regulate connecting rod one; 23, regulate connecting rod two; 24, connecting axle.
The specific embodiment
Embodiment one
As shown in Figure 1, the differential material feeding device of this Sewing machines is located at frame 1 place of Sewing machines, thereby can realize that by it differential feed makes the position of side seam and so under the overseam of the cuff of the eckband of T-shirt, clothes, the long sleeves mouth.
The differential material feeding device of this Sewing machines comprises power spindle 4, power transmission shaft 5, feeding tooth 2a and differential tooth 3a etc.In the present embodiment, be fixed with belt pulley on the power spindle 4, motor drives power spindle 4 by belt and rotates.Feeding tooth 2a is connected on the feeding retainer 2, and differential tooth 3a is connected on the differential retainer 3, and feeding retainer 2 and differential retainer 3 all are on the frame 1 of Sewing machines.
Power spindle 4 drives power transmission shaft 5 by transmission mechanism and rotates, and is provided with feed mechanism between power transmission shaft 5 and the feeding retainer 2, is provided with differential attachment between power transmission shaft 5 and the differential retainer 3.
Transmission mechanism comprises cam 10, crank connecting link 11, connecting rod 1 and connecting rod 2 13, and cam 10 is connected on the above-mentioned power spindle 4, and crank connecting link 11 is connected on the power transmission shaft 5.One end of connecting rod 1 is provided with the cooperation circle 12a hole that its aperture is slightly larger than cam 10 external diameters, and the cooperation circular hole 12a place of connecting rod 1 is socketed on the above-mentioned cam 10.One end of the other end of connecting rod 1 and connecting rod 2 13 is hinged, and the other end of connecting rod 2 13 and crank connecting link 11 are hinged.In the present embodiment, in order to increase the transmission stability of transmission mechanism, between connecting rod 2 13 and crank connecting link 11, also be provided with connecting rod 3 15 and driving crank connecting rod 16, driving crank connecting rod 16 is hinged in the frame 1, one end and the driving crank connecting rod 16 of connecting rod 2 13 are hinged, the other end of driving crank connecting rod 16 and connecting rod 3 15 are hinged, and the other end of connecting rod 3 15 and crank connecting link 11 are hinged.
Differential attachment comprises differential handle 6 and drive link 1, and an end of differential handle 6 is connected on the power transmission shaft 5, and the other end of differential handle 6 and drive link 1 are hinged, and the other end of drive link 1 and above-mentioned differential retainer 3 are hinged.
Feed mechanism comprises feeding handle 8 and drive link 29, and an end of feeding handle 8 is connected on the power transmission shaft 5, and the other end of feeding handle 8 and drive link 2 13 are hinged, and the other end of drive link 2 13 and above-mentioned feeding retainer 2 are hinged.
In driven by motor power spindle 4 rotation processes, cam 10 is being followed the cooperation circular hole 12a that rotates and push on the connecting rod 1, make connecting rod 1 move up and down along with the rotation of cam 10, driving driving crank connecting rods 16 by connecting rod 2 13 in connecting rod one 12 moving process swings around it and the hinged place of frame 1, drive crank connecting link 11 swings by connecting rod 3 15 in driving crank connecting rod 16 swing process, because crank connecting link 11 is connected on the power transmission shaft 5.Obviously, just make that finally power transmission shaft 5 can be along with rotation.That is to say that power spindle 4 can drive power transmission shaft 5 by above-mentioned transmission mechanism and rotate.
Drive above-mentioned differential handle 6 and 8 swings of feeding handle in power transmission shaft 5 rotation processes.Drive the translation on the frame 1 of Sewing machines of differential retainer 3 by drive link 1 in differential handle 6 swing process, drive the translation on the frame 1 of Sewing machines of feeding retainer 2 by drive link 29 in feeding handle 8 swing process.Obviously, differential tooth 3a and feeding tooth 2a be also along with translation on frame 1, thereby reach the purpose of differential feed.
In order to change the translational speed of differential tooth 3a, movable sleeve is followed one and is adjusted piece 17 on differential handle 6, and the kinematic link 1 in the differential attachment just is hinged on to be adjusted on the piece 17, and the other end of kinematic link 1 and differential retainer 3 are hinged.Adjust piece 17 and also be connected, can adjust piece 17 by this guiding mechanism and be in position on the differential handle 6 with a guiding mechanism.
Guiding mechanism comprises an adjusting rod 18, and adjusting rod 18 is shaft-like.One end of adjusting rod 18 is hinged on the frame 1, and above-mentioned adjustment piece 17 is hinged on the middle part of adjusting rod 18.Also be provided with positioner on frame 1, the other end of adjusting rod 18 just is in the positioner place, adjusting rod 18 can be fixed by positioner.In the present embodiment,, also be provided with in the guiding mechanism and regulate connecting rod 1, regulate connecting rod 2 23, handle 20 and connecting axle 24 in order to increase transmission stability and to be convenient to practical operation.Connecting axle 24 is located on the frame 1 and its two ends lay respectively at the inside and outside of frame 1, handle 20 is connected on the connecting axle 24 that is positioned at the frame outside, regulating connecting rod 1 is connected on the connecting axle 24 that is positioned at frame 1 inside, the other end of regulating connecting rod 1 is hinged with adjusting connecting rod 2 23, and the other end of adjusting connecting rod 2 23 and above-mentioned adjusting rod 18 are hinged.
Like this, pull handle 20 and drive adjusting connecting rod 1 around the swing of connecting axle 24 places, regulate in connecting rod one 22 swing process by regulating 18 swings of connecting rod 2 23 drive adjusting rods by connecting axle 24.Adjusting rod 18 just can drive adjustment piece 17 during around the hinged place swing of it and frame 1 and slide on differential handle 6.In case after adjusting piece 17 and being in position on the differential handle 6 and determining, by being positioned at the swing that positioner on the frame 1 just can limit adjusting rod 18.
As depicted in figs. 1 and 2, positioner is the adjustable plate 19 that is connected in frame 1 outside, and adjustable plate 19 is provided with bar shaped locating hole 19a, and 19a is curved for the bar shaped locating hole.Bar shaped locating hole 19a place is provided with screw, and when handle 20 turned to the bar shaped locating hole 19a of adjustable plate 19, screw connects just to have been fixed handle 20 thereon, makes handle 20 not pull again.Simultaneously, above-mentioned adjustment piece 17 is in position on the differential handle 6 also along with fixing.
In order to make the operator get information about the angle of pulling of handle 20, on adjustable plate 19, also be provided with the scale hole 19b that is bar shaped.Handle 20 is provided with index line 20a, and the position that has index line 20a on the handle 20 is in 19b place, scale hole.That is to say that index line 20a can be aligned in the scale at 19b place, adjustable plate 19 scale hole.
In addition, to rock in order preventing to produce in adjusting rod 19 swing process, also be fixed with a limited location fork 21 on frame 1, the top of limited location fork 21 has fork 21a, and the width of this prong 21a is greater than the width of above-mentioned adjusting rod 18.That is to say that adjusting rod 18 is to swing in the prong 21a of limited location fork 21.Obviously, limited location fork 21 just can play the guiding role to the swing of adjusting rod 18, and prevents that it from shaking.
Embodiment two
Present embodiment is basic identical with mechanism and the principle of embodiment one, different place is that differential attachment is differential handle 6, one end of differential handle 6 is connected on the power transmission shaft 5, the other end is provided with bar hole 6a, above-mentioned differential retainer 3 is provided with plush copper 3b, and plush copper 3b is positioned at bar hole 6a, sees shown in Figure 3.
Embodiment three
Present embodiment is basic identical with mechanism and the principle of embodiment one, different place is that feed mechanism is a feeding handle 8, one end of feeding handle 8 is connected on the power transmission shaft 5, the other end is provided with bar hole 8a, above-mentioned feeding retainer 2 is provided with plush copper 2b, and plush copper 2b is positioned at bar hole 8a, sees shown in Figure 4.
Embodiment four
Present embodiment is basic identical with mechanism and the principle of embodiment one, to be connecting rod 1 with the hinged end opposite of connecting rod 2 13 be not provided with in different place cooperates circular hole 12a, but on connecting rod 1 sheathed spring 14, the end opposite that the elastic force of spring 14 makes connecting rod 1 and connecting rod 2 13 be hinged is resisted against on the cam 10, sees shown in Figure 5.
When its highest point contacted with connecting rod 1 in cam 10 rotation processes, connecting rod 1 moved down; On the contrary, cam 10 turns to its lowest part when contacting with connecting rod 1, and connecting rod 1 moves under the effect of spring 14 and the lowest part that is resisted against cam 10 tightly.Obviously, just make in cam 10 rotation processes and move or move down on the connecting rod 1.

Claims (13)

1, a kind of differential material feeding device of Sewing machines, comprise feeding retainer (2) and the differential retainer (3) be located on the sewing machine frame (1), be respectively equipped with feeding tooth (2a) and differential tooth (3a) on feeding retainer (2) and the differential retainer (3), also be provided with power spindle (4) and power transmission shaft (5) on the Sewing machines, power spindle (4) drives power transmission shaft (5) by transmission mechanism and rotates, being provided with between power transmission shaft (5) and the above-mentioned feeding retainer (2) when power transmission shaft (5) rotates to make feeding retainer (2) go up the feed mechanism of translation in frame (1), it is characterized in that, be provided with between described power transmission shaft (5) and the above-mentioned differential retainer (3) when power transmission shaft (5) rotates and make differential retainer (3) go up the differential attachment of translation in frame (1).
2, the differential material feeding device of Sewing machines according to claim 1, it is characterized in that, described differential attachment comprises differential handle (6) and drive link one (7), one end of differential handle (6) and above-mentioned power transmission shaft (5) are connected, one end of drive link one (7) is hinged on the other end of differential handle (6), and the other end of drive link one (7) and above-mentioned differential retainer (3) are hinged.
3, the differential material feeding device of Sewing machines according to claim 1, it is characterized in that, described differential attachment is differential handle (6), one end of differential handle (6) is connected on the power transmission shaft (5), the other end is provided with bar hole (6a), above-mentioned differential retainer (3) is provided with plush copper (3b), and plush copper (3b) is positioned at bar hole (6a).
4, according to the differential material feeding device of claim 1 or 2 or 3 described Sewing machiness, it is characterized in that, described feed mechanism comprises feeding handle (8) and drive link two (9), one end of feeding handle (8) and above-mentioned power transmission shaft (5) are connected, one end of drive link two (9) is hinged on the other end of feeding handle (8), and the other end of drive link two (9) and above-mentioned feeding retainer (2) are hinged.
5, according to the differential material feeding device of claim 1 or 2 or 3 described Sewing machiness, it is characterized in that, described feed mechanism is feeding handle (8), one end of feeding handle (8) is connected on the power transmission shaft (5), the other end is provided with bar hole (8a), above-mentioned feeding retainer (2) is provided with plush copper (2b), and plush copper (2b) is positioned at bar hole (8a).
6, according to the differential material feeding device of claim 1 or 2 or 3 described Sewing machiness, it is characterized in that, described transmission mechanism is provided with the swing mechanism that crank connecting link (11) is swung for being connected in the cam (10) on the power spindle (4) and being connected in crank connecting link (11) on the power transmission shaft (5) between cam (10) and the crank connecting link (11).
7, the differential material feeding device of Sewing machines according to claim 6, it is characterized in that, described swing mechanism comprises connecting rod one (12) and connecting rod two (13), one end of connecting rod one (12) is provided with the cooperation circular hole (12a) that its aperture is slightly larger than cam (10) external diameter, and the cooperation circular hole (12a) of connecting rod one (12) is socketed on the above-mentioned cam (10), one end of the other end of connecting rod one (12) and connecting rod two (13) is hinged, and the other end of connecting rod two (13) and above-mentioned crank connecting link (11) are hinged.
8, the differential material feeding device of Sewing machines according to claim 7, it is characterized in that, described swing mechanism also comprises driving crank connecting rod (16) and the connecting rod of being located between connecting rod two (13) and the crank connecting link (11) three (15), the middle part of driving crank connecting rod (16) is hinged on the frame (1), one end of driving crank connecting rod (16) and above-mentioned connecting rod two (13) are hinged, one end of the other end of driving crank connecting rod (16) and connecting rod three (15) is hinged, and the other end of connecting rod three (15) and above-mentioned crank connecting link (11) are hinged.
9, according to the differential material feeding device of claim 1 or 2 or 3 described Sewing machiness, it is characterized in that, described differential handle (6) is gone up movable sleeve and is connected to an adjustment piece (17), above-mentioned differential attachment is arranged on to be adjusted between piece (17) and the differential retainer (3), and adjustment piece (17) is connected with a guiding mechanism that can make adjustment piece (17) go up slip at differential handle (6).
10, the differential material feeding device of Sewing machines according to claim 9, it is characterized in that, described guiding mechanism is the adjusting rod (18) that is shaft-like, one end of adjusting rod (18) is hinged on the frame (1), its middle part is hinged with above-mentioned adjustment piece (17), also be provided with positioner on frame (1), the other end of adjusting rod (18) is positioned at the positioner place.
11, the differential material feeding device of Sewing machines according to claim 10, it is characterized in that, described positioner is for being connected in the adjustable plate (19) outside the frame (1), have curved bar shaped locating hole (19a) on the adjustable plate (19), screw is through on the bar shaped locating hole (19a) and can links together with above-mentioned adjusting rod (18).
12, differential material feeding device according to claim 10 or 11 described Sewing machiness, it is characterized in that, described guiding mechanism also comprises regulates connecting rod one (22), regulate connecting rod two (23), handle (20) and connecting axle (24), the frame (1) that is through connecting axle (24) goes up its end and handle (20) that is in frame (1) outside and is connected, being in the inboard end of frame (1) is connected with adjusting connecting rod one (22), the other end of regulating connecting rod one (22) is hinged with an end of regulating connecting rod two (23), regulates the other end of connecting rod two (23) and above-mentioned adjusting rod (18) and is hinged.
13, the differential material feeding device of Sewing machines according to claim 11, it is characterized in that, also be provided with the scale hole (19b) that is bar shaped on the described adjustable plate (19), above-mentioned handle (20) is provided with index line, and the position that has index line on the handle (20) is in scale hole (19b) and locates.
CN 200610117968 2006-11-03 2006-11-03 Differential material feeding device of sewing machine Pending CN1948585A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102296429A (en) * 2011-08-25 2011-12-28 中屹机械工业有限公司 Cloth feeding device dedicated for elastic cloth
CN101634085B (en) * 2008-07-25 2012-05-23 中国标准缝纫机公司上海惠工缝纫机三厂 Differential mechanism of motor-direct-drive type lower differential sewing machine
CN101792956B (en) * 2009-02-02 2012-11-14 中国标准缝纫机公司上海惠工缝纫机三厂 Upper differential feeding mechanism with contraction joint function of sewing machine and upper feeding wrinkling mechanism using same
CN105734841A (en) * 2014-12-08 2016-07-06 曾贤长 Sewing machine cloth feeding tooth differential mechanism
CN106012321A (en) * 2016-08-03 2016-10-12 杰克缝纫机股份有限公司 Differential cloth-feed adjusting structure and sewing machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101634085B (en) * 2008-07-25 2012-05-23 中国标准缝纫机公司上海惠工缝纫机三厂 Differential mechanism of motor-direct-drive type lower differential sewing machine
CN101792956B (en) * 2009-02-02 2012-11-14 中国标准缝纫机公司上海惠工缝纫机三厂 Upper differential feeding mechanism with contraction joint function of sewing machine and upper feeding wrinkling mechanism using same
CN102296429A (en) * 2011-08-25 2011-12-28 中屹机械工业有限公司 Cloth feeding device dedicated for elastic cloth
CN105734841A (en) * 2014-12-08 2016-07-06 曾贤长 Sewing machine cloth feeding tooth differential mechanism
CN105734841B (en) * 2014-12-08 2018-04-10 曾贤长 The cloth conveying teeth differential attachment of sewing machine
CN106012321A (en) * 2016-08-03 2016-10-12 杰克缝纫机股份有限公司 Differential cloth-feed adjusting structure and sewing machine

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