CN102011274A - Two-gear type stitch length adjusting device of sewing machine - Google Patents
Two-gear type stitch length adjusting device of sewing machine Download PDFInfo
- Publication number
- CN102011274A CN102011274A CN201010610347XA CN201010610347A CN102011274A CN 102011274 A CN102011274 A CN 102011274A CN 201010610347X A CN201010610347X A CN 201010610347XA CN 201010610347 A CN201010610347 A CN 201010610347A CN 102011274 A CN102011274 A CN 102011274A
- Authority
- CN
- China
- Prior art keywords
- needle gage
- lower shaft
- ratchet
- regulating wheel
- eccentric
- Prior art date
- 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.)
- Granted
Links
Images
Abstract
The invention provides a two-gear type stitch length adjusting device of a sewing machine, which belongs to the technical field of machines and can solve the problems that the existing stitch length adjusting mechanism has a small adjustment range and can not carry out gear-shift adjustment. The two-gear type stitch length adjusting device of the sewing machine comprises a stitch length regulating wheel which is sheathed on a lower shaft and eccentric and a feed cam, one end of the feed cam is sheathed on the stitch length regulating wheel, a guide mechanism for leading the feed cam to slip is arranged between the other end of the feed cam and the lower shaft, a stitch length regulating ratchet wheel is detachably connected on the lower shaft, and a ratchet is arranged on the stitch length regulating ratchet wheel; and a stitch length regulating sliding block which can slip radially relative to the stitch length regulating wheel is arranged between the stitch length regulating wheel and the stitch length regulating ratchet wheel, wheel teeth are arranged on the stitch length regulating sliding block, and the wheel teeth can be meshed with the ratchet through an elastic positioning mechanism. The two-gear type stitch length adjusting device can carry out stitch length adjustment in two positions and has the two-gear stitch length adjusting range, thereby meeting the needs of different sewing operations on the same sewing machine.
Description
Technical field
The invention belongs to field of mechanical technique, relate to the two retaining formula needle gage regulators of using on a kind of Sewing machines, particularly Sewing machines.
Background technology
When stitching sewing machine, usually need adjust that (distance between needle point tracers claims needle gage again according to the difference of sewing operation to the distance between needle point tracers of eedle, be meant the distance of eedle between the adjacent trace that stings out on the sewing), and the horizontal movement amount of distance between needle point tracers by feed dog decides, institute thinks and satisfies demand of practical production, occurred adjusting the guiding mechanism of the horizontal movement amount of feed dog on the market.
Traditional guiding mechanism comprises the interior eccentric wheel that is arranged on the rotating shaft, be enclosed within outer eccentric wheel and work feed connecting rod on the eccentric wheel, work feed connecting rod one end is connected on the outer eccentric wheel, the other end is connected on the work feed retainer by crank assemblies, and feed dog is connected on the work feed retainer.Outer eccentric wheel rotated when rotating shaft rotated, and by the effect drive work feed connecting rod swing of eccentric throw between outer eccentric wheel and the rotating shaft, the amplitude of oscillation of work feed connecting rod drives the horizontal movement of work feed retainer by crank assemblies, is the horizontal movement of feed dog.Therefore, the eccentric throw that only need adjust outer eccentric wheel and rotating shaft can be adjusted the horizontal movement amount of feed dog, and the eccentric throw between outer eccentric wheel and the rotating shaft can realize by eccentric wheel in adjusting and outer eccentric relative position.This guiding mechanism can be realized the needle gage adjustment, but the distance between needle point tracers of this guiding mechanism can only be adjusted in more among a small circle.And the high efficiency sewing operation that the thickness material changes on same Sewing machines has appearred on the market requiring, so traditional distance between needle point tracers guiding mechanism does not satisfy the market demand.
Summary of the invention
The objective of the invention is to have the problems referred to above, proposed a kind of simple in structure, easy to adjust and have two retaining formula needle gage regulators that two-stage is adjusted the Sewing machines of function at existing technology.
Purpose of the present invention can realize by following technical proposal: two retaining formula needle gage regulators of Sewing machines, be arranged on the lower shaft, comprise the needle gage regulating wheel and the feed eccentric that are enclosed within on the lower shaft, described needle gage regulating wheel and feed eccentric are eccentric wheel, one end of described feed eccentric is enclosed within on the needle gage regulating wheel, be provided with the guiding mechanism that can make the relative lower shaft slippage of the circumferential fixed radial energy of feed eccentric and lower shaft between the other end and the lower shaft, it is characterized in that, described lower shaft is provided with and can regulates ratchet with the needle gage that lower shaft removably connects, and described needle gage is regulated on the ratchet and offered ratchet; Above-mentioned needle gage regulating wheel and needle gage regulate be provided with between the ratchet can with the circumferential fixed radial of needle gage regulating wheel can the slippage of relative needle gage regulating wheel the needle gage adjusting slider, have the gear teeth that can cooperate on the described needle gage adjusting slider, and between described needle gage regulating wheel and described needle gage adjusting slider, be provided with the elastic positioning structure that the described gear teeth are meshed with described ratchet with above-mentioned ratchet.
One end of work feed connecting rod is set on the feed eccentric of the present invention, and the other end is connected on the work feed retainer by the cloth feeding crank assembly and drives the work feed retainer and move forward and backward.Therefore, when lower shaft rotated among the present invention, feed eccentric rotated and can drive the work feed connecting rod swing, and the amplitude of oscillation of work feed connecting rod has directly determined the size of needle gage, and the amplitude of oscillation of work feed connecting rod greatly then needle gage is big, and the little then needle gage of the amplitude of oscillation is little.Feed eccentric is circumferentially fixedlyed connected with lower shaft by guiding mechanism and can be along the radial slippage of lower shaft, so when the needle gage regulating wheel rotates, eccentric distance between needle gage regulating wheel and the lower shaft makes the radial slippage of feed eccentric along lower shaft, and the slippage of feed eccentric has directly determined the amplitude of oscillation of work feed connecting rod, the slippage of the feed eccentric greatly then amplitude of oscillation is big, the little then amplitude of oscillation of slippage is little, and the slippage of feed eccentric decides by the eccentric distance between feed eccentric and the lower shaft.
When the needle gage regulating wheel was regulated the mating reaction of ratchet, needle gage adjusting slider and elastic positioning structure and lower shaft and formed a fixed connection by needle gage, the eccentric distance between feed eccentric and the lower shaft was the eccentric throw between needle gage regulating wheel and the lower shaft and the stack of the eccentric distance between feed eccentric and the needle gage regulating wheel.This moment is if the eccentric distance that will adjust between feed eccentric and the lower shaft can be by the two-stage adjustment: a kind ofly make needle gage regulate ratchet and lower shaft unclamps, making lower shaft to regulate ratchet relative to needle gage rotates, feed eccentric feasible and that lower shaft circumferentially is connected can rotate relative to the needle gage regulating wheel, thereby change the eccentric distance between feed eccentric and the following distance, this kind adjustment mode just can be adjusted after need tearing machine open; Another kind is that the active force that only needs to make the needle gage adjusting slider overcome elastic positioning structure for active force of needle gage adjusting slider makes the gear teeth and needle gage regulate the ratchet disengagement of ratchet, make feed eccentric to rotate relative to the needle gage regulating wheel, thereby change the eccentric distance between feed eccentric and the following distance, this kind adjustment mode can be carried out under the state of not tearing machine open.
In two retaining formula needle gage regulators of above-mentioned Sewing machines, radially offer chute on the end face of described needle gage regulating wheel, above-mentioned needle gage adjusting slider is arranged in the chute and the one end stretches out chute.The needle gage adjusting slider is arranged in the chute and is connected with circumferential formation of needle gage regulating wheel, radially can move along chute.
In two retaining formula needle gage regulators of above-mentioned Sewing machines, the projection that has projection on the described needle gage adjusting slider, described projection stretch out the end face of above-mentioned needle gage regulating wheel, and the above-mentioned gear teeth are opened on the projection.The gear teeth are arranged on the projection of needle gage adjusting slider, can regulate ratchet engagement on the ratchet with needle gage when making things convenient for the needle gage adjusting slider to move, and are connected thereby make needle gage regulating wheel and lower shaft form.
In two retaining formula needle gage regulators of above-mentioned Sewing machines, described elastic positioning structure comprises a spacing spring, and an end of described spacing spring is connected on the needle gage regulating wheel, and the other end passes through the elastic force roof pressure to the needle gage adjusting slider.Elastic acting force by spacing spring makes needle gage adjusting slider and needle gage regulate the ingear under normal conditions state of ratchet.
In two retaining formula needle gage regulators of above-mentioned Sewing machines, described needle gage adjusting slider offers stopper slot, and above-mentioned spacing spring is positioned at stopper slot.This setting is positioned in the stopper slot spacing spring, avoids that spacing spring moves in the use.
In two retaining formula needle gage regulators of above-mentioned Sewing machines, described needle gage is regulated ratchet sleeve on lower shaft, offer the screwed hole that several run through on the outer peripheral face of needle gage adjusting ratchet, be provided with stop screw in the described screwed hole, the inner energy roof pressure of described stop screw is on lower shaft.When needle gage adjusting ratchet was connected by stop screw and lower shaft formation, the relative position between feed eccentric and the needle gage regulating wheel can be fixed, and the eccentric distance between feed eccentric and the lower shaft also can be fixed at this moment; When unclamping stop screw, needle gage is regulated ratchet and is separated with lower shaft, and this moment, feed eccentric can rotate relative to the needle gage regulating wheel, thereby can adjust the eccentric distance between feed eccentric and the lower shaft.
In two retaining formula needle gage regulators of above-mentioned Sewing machines, described needle gage is regulated to be provided with between ratchet and the described needle gage regulating wheel and can be limited the limiting structure that relatively rotates angle that needle gage is regulated ratchet and needle gage regulating wheel.This limiting structure setting has been limited the scope that relatively rotates between feed eccentric and the needle gage regulating wheel, thereby limits the adjusting range of needle gage.
In two retaining formula needle gage regulators of above-mentioned Sewing machines, described limiting structure comprises and is installed on the needle gage regulating wheel end face and divides two spacer pins that are arranged and be arranged on needle gage and regulate backing pin on the ratchet outer peripheral face that described backing pin is between two spacer pins.
In two retaining formula needle gage regulators of above-mentioned Sewing machines, on described guiding mechanism comprises the feed eccentric seat that is connected on the lower shaft and is opened in the feed eccentric end face and the guide channel offered of vertical lower shaft axial line, has the guide pad that cooperates with guide channel on the described feed eccentric seat.It is circumferentially fixing that the mating reaction of guide pad and guide channel makes that feed eccentric and lower shaft form, and radially can slide along guide pad.
In two retaining formula needle gage regulators of above-mentioned Sewing machines, described feed eccentric cover for seat is provided with dog screw on the feed eccentric seat on lower shaft, and described feed eccentric seat is connected on the lower shaft by screw.The feed eccentric seat forms a fixed connection by dog screw and lower shaft.
As another kind of situation, in two retaining formula needle gage regulators of above-mentioned Sewing machines, described feed eccentric seat inboard has locating surface one, the corresponding locating surface two that cooperates with locating surface one that is provided with on the described lower shaft.The feed eccentric seat forms a fixed connection with lower shaft by locating surface one and the locating surface two that cooperates.
Compared with prior art, two of Sewing machines of the present invention retaining formula needle gage regulators have the following advantages:
1, thereby this installs the adjustment of passing through adjustment needle gage regulating wheel and these two eccentric relative positions realization needle gage sizes of feed eccentric, and this regulator has adjustment position, two places, i.e. place's adjustment of needle gage adjusting ratchet and the adjustment of needle gage adjusting slider place.The ratchet place is adjusted into needle gage block selecting adjustment, and promptly selected big retaining needle gage or little retaining needle gage are to adapt to different sewing operations; The adjustment of needle gage adjusting slider then is the needle gage inching behind the selected retaining, can directly adjust in the process of making.The needle gage regulator needle gage of this structure is easy to adjust, can adapt to multiple different sewing operation demand, uses wider.
2, needle gage is regulated ratchet, needle gage adjusting slider and spacing spring and not only can be satisfied two places adjustment needs cooperating of needle gage regulating wheel simultaneously, and need not to change parts during adjustment, and is reasonable in design, the positioning accuracy height, and flexible operation, easy to adjust.
3, feed eccentric by with the moving radially between realization and the lower shaft that cooperate of eccentric bushing and feed eccentric seat, this amount of movement changes into the amount of moving horizontally of feed dog by work feed connecting rod and cloth feeding crank assembly again, thereby changes into the size of needle gage.Such project organization letter is gathered, and needle gage positioning phenomenon can not occur.
Description of drawings
Fig. 1 is the perspective view one of two retaining formula needle gage regulators of Sewing machines of the present invention.
Fig. 2 is the cross-sectional view of two retaining formula needle gage regulators of Sewing machines of the present invention.
Fig. 3 is the perspective view two of two retaining formula needle gage regulators of Sewing machines of the present invention.
Fig. 4 is the three-dimensional decomposition texture schematic diagram of two retaining formula needle gage regulators of Sewing machines of the present invention.
Fig. 5 is the front view of two retaining formula needle gage regulator mid-cut regulating wheels of Sewing machines of the present invention.
Fig. 6 is the vertical view that two of Sewing machines of the present invention keeps off Fig. 5 in the formula needle gage regulators.
Fig. 7 is the front view that two of Sewing machines of the present invention keeps off feed eccentric in the formula needle gage regulators.
Fig. 8 is the left view that two of Sewing machines of the present invention keeps off Fig. 7 in the formula needle gage regulators.
Fig. 9 is the rearview that two of Sewing machines of the present invention keeps off Fig. 7 in the formula needle gage regulators.
Figure 10 is the front view that two of Sewing machines of the present invention keeps off feed eccentric seat in the formula needle gage regulators.
Figure 11 is the left view that two of Sewing machines of the present invention keeps off Figure 10 in the formula needle gage regulators.
Figure 12 is the front view of two retaining formula needle gage regulator mid-cut adjusting sliders of Sewing machines of the present invention.
Figure 13 is the front view that two of Sewing machines of the present invention keeps off eccentric bushing in the formula needle gage regulators.
Figure 14 is the cross section view that two of Sewing machines of the present invention keeps off Figure 13 in the formula needle gage regulators.
Figure 15 is the schematic diagram that two of Sewing machines of the present invention keeps off the eccentric throw of formula needle gage regulators adjustment.
Among the figure, lower shaft 1, needle gage regulating wheel 2, stage 1, stage 2 22, locating hole 22a, circular hole 22b, chute 22c, open slot 22d, V-arrangement graduation mark 22e, feed eccentric 3, active section 1, working hole 31a, locating surface 31b, active section 2 32, guide channel 32a, needle gage is regulated ratchet 4, ratchet 41, screwed hole 42, needle gage adjusting slider 5, projection 51, stopper slot 52, the gear teeth 53, recess 54, through hole 55, spacing spring 6, stop screw 7, spacer pin 8, eccentric bushing 9, working face 91, oil groove 92, oilhole 93, feed eccentric seat 10, guide pad 10a, linkage section 10b, V-arrangement groove 10c, screw hole one 10d, dog screw 10e, screw hole two 10f, needle gage button 101a, shoulder block 101b, needle gage button panel 101c, spring 101d, catch 101e, needle plate connecting plate 102, work feed connecting rod 103, cloth feeding crank assembly 104, roller 104a, feeding connecting rod 104b, cloth feeding crank one 104c, cloth feeding crank pin 104d, feed spool 104e, cloth feeding crank two 104f, feeding connecting rod screw 104g, work feed retainer 105, feed dog 106, backing pin 107.
The specific embodiment
Below be specific embodiments of the invention and in conjunction with the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, two retaining formula needle gage regulators of Sewing machines of the present invention, be arranged on the lower shaft 1, comprise needle gage regulating wheel 2, needle gage adjusting ratchet 4, needle gage adjusting slider 5, elastic positioning structure, limiting structure, eccentric bushing 9, feed eccentric 3, guiding mechanism and operating assembly.
As shown in Figure 5 and Figure 6, needle gage regulating wheel 2 comprises stage 1 and stage 2 22, and the stage 1 is the eccentric wheel of tubular, offers the chute 22c perpendicular with center line on the end face in stage 2 22.It axially offers open slot 22d in the outer circumference surface upper edge in stage 2 22, and open slot 22d is positioned at the end of chute 22c and is communicated with chute 22c, has V-arrangement graduation mark 22e in the bottom of open slot 22d, the contrast sign when V-arrangement graduation mark 22e is adjustment; Also offer a circular hole 22b and two locating hole 22a on the end face in stage 2 22, two locating hole 22a are positioned at the both sides of chute 22c.
Needle gage is regulated ratchet 4 and is had the endoporus that can be set on the lower shaft 1, offers ratchet 41 and two screwed holes 42 that are provided with along excircle on its excircle, and screwed hole 42 is communicated with endoporus, and stop screw 7 is by being threaded in screwed hole 42 places; Needle gage regulate screw when ratchet 4 is enclosed within on the lower shaft 1 the inner that stop screw 7 can make stop screw 7 all roof pressure on lower shaft 1, form a fixed connection with lower shaft 1 thereby make needle gage regulate ratchet 4.Another screwed hole 42 is provided with backing pin 107, and the outer circumference surface of regulating ratchet 4 is stretched out in the outer end of backing pin 107.
As Fig. 3 and shown in Figure 12, needle gage adjusting slider 5 is the interior and chute 22c matched in clearance of chute 22c that bulk can be arranged on needle gage regulating wheel 2, the through hole 55 that needle gage adjusting slider 5 middle parts offer strip is used to be set in lower shaft 1, one end of needle gage adjusting slider 5 offers recess 54, has the projection 51 of projection on the side of the other end.Projection 51 stretches out the end face of needle gage regulating wheel 2, and an end of projection 51 offers the gear teeth 53 that can cooperate with the ratchet 41 on the needle gage regulating wheel 2, and the other end offers stopper slot 52.The opening depth as shallow of the open slot 22d of the opening depth ratio needle gage regulating wheel 2 of recess 54, this is arranged so that needle gage adjusting slider 5 can regulate ratchet 4 with needle gage and throw off.
Elastic positioning structure comprises a spacing spring 6, the two ends of spacing spring 6 bend up, the one end is plugged in the circular hole 22b of needle gage regulating wheel 2, the other end extend into the stopper slot 52 of needle gage adjusting slider 5 and the roof pressure bottom at stopper slot 52, this setting is positioned in the stopper slot 52 spacing spring 6, avoids that spacing spring 6 moves in the use.The elastic acting force of spacing spring 6 acts on the needle gage adjusting slider 5 from the bottom up, thereby the gear teeth of installing on the projection 51 of back 53 can be meshed with the ratchet 41 on the needle gage regulating wheel 2.
Limiting structure comprises two spacer pins 8 and the backing pin 107 that is arranged on needle gage adjusting ratchet 4 outer peripheral faces on the locating hole 22a that is installed in needle gage regulating wheel 2 end faces, the outer end of backing pin 107 stretches out that needle gage is regulated the excircle of ratchet 4 and between two spacer pins 8, when needle gage adjusting ratchet 4 and needle gage regulating wheel 2 relatively rotated, backing pin 107 energy roof pressures were on two spacer pins 8.This limiting structure requires to be provided with according to default needle gage adjusting range.
As Figure 13 and shown in Figure 14, eccentric bushing 9 has two symmetrically arranged working faces 91 in the form of a ring on the outer circumference surface of eccentric bushing 9, axially offering oil groove 92, radially offer oilhole 93 with internal communication at working face 91 upper edge eccentric bushings 9.Oil groove 92 and oilhole 93 are set, and to be convenient to part lubricated, working face 91 is set is convenient to cooperate drive feed eccentric 3 to move radially with locating surface 31b.
As Fig. 7, Fig. 8 and shown in Figure 9, feed eccentric 3 comprises active section 1 and active section 2 32.Active section 1 is an eccentric wheel cylindraceous, offers the working hole 31a of strip shape in active section 1, has in the working hole 31a to inner process and symmetrically arranged two locating surface 31b; Offer on the end face of active section 2 32 and lower shaft 1 center line vertical guiding groove 32a.
The feed eccentric seat 10 that guiding mechanism comprises the guide channel 32a on the feed eccentric 3 and is set on the lower shaft 1 and is connected with lower shaft 1, as shown in Figure 10 and Figure 11, the guide pad 10a that feed eccentric seat 10 comprises linkage section 10b and is used for cooperating with guide channel 32a.Offer V-arrangement groove 10c, screw hole one 10d and screw hole two 10f on the linkage section 10b.Be provided with dog screw 10e in screw hole one 10d and screw hole two 10f, feed eccentric 3 forms by dog screw 10e and lower shaft 1 and is connected.The corresponding relative position that is used for determining feed eccentric 3 and needle gage regulating wheel 2 that is provided with of the V-arrangement graduation mark 22e of the positioning screw hole 10e at V-arrangement groove 10c and screw hole two 10f places bottom the open slot 22d of needle gage regulating wheel 2.It is circumferentially fixing that the mating reaction of guide pad 10a and guide channel 32a makes that feed eccentric 3 and lower shaft 1 form, and radially can slide along guide pad 10a.
Operating assembly is arranged on the open slot 22d top of the recess 54 and the needle gage regulating wheel 2 of needle gage adjusting slider 5, comprise needle gage button 101a, spring 101d, needle gage button panel 101c and catch 101e, needle gage button panel 101c is arranged on the below of needle plate connecting plate 102, needle gage button 101a lower end has the cannelure that is used to be provided with catch 101e, this end stretches into needle gage button panel 101c and can pass through catch 101e roof pressure below needle gage button panel 101c, needle gage knob upper end has shoulder block 101b, spring 101d is arranged between the shoulder block 101b and needle gage button panel 101c of needle gage button 101a, shoulder block 101b is concordant with needle plate connecting plate 102 under the effect of spring 101d power, if give downward active force of needle gage button 101a, needle gage button 101a can overcome spring 101d power and move down.
Work feed connecting rod 103 1 ends among the present invention are enclosed within on the active section 1 of feed eccentric 3, and the other end is connected on the cloth feeding crank assembly 104, and cloth feeding crank assembly 104 is connected with work feed retainer 105, and feed dog 106 is connected on the work feed retainer 105.Cloth feeding crank assembly 104 among the present invention comprises roller 104a, feeding connecting rod 104b, cloth feeding crank one 104c, feeding connecting rod screw 104g, feed spool 104e, cloth feeding crank two 104f and cloth feeding crank pin 104d.The two ends of feed spool 104e are connected with cloth feeding crank two 104f with cloth feeding crank one 104c respectively; Cloth feeding crank one 104c is connected with feeding connecting rod 104b, and feeding connecting rod 104b is connected with work feed retainer 105 with feeding connecting rod screw 104g by roller 104a; Cloth feeding crank two 104f form hinged by cloth feeding crank pin 104d and work feed connecting rod 103.
The feed eccentric seat 10 of needle gage adjusting device of the present invention, feed eccentric 3, eccentric bushing 9, work feed connecting rod 103, needle gage regulating wheel 2, needle gage adjusting slider 5, needle gage are regulated ratchet 4 and all are enclosed within on the lower shaft 1, its installation steps: at first, feed eccentric seat 10 is formed a fixed connection by dog screw 10e and lower shaft 1; Secondly, the guide channel 32a of feed eccentric 3 active sections 2 32 ends is cooperated with the guide pad 10a of feed eccentric seat 10, and allow work feed connecting rod 103 be enclosed within on the active section 1 of feed eccentric 3, more flexible for feed eccentric 3 is rotated, between work feed connecting rod 103 and feed eccentric 3, also be provided with bearing; The 3rd, eccentric bushing 9 is enclosed within on the stage 1 of needle gage regulating wheel 2, and promotion needle gage regulating wheel 2 makes eccentric bushing 9 be positioned at the working hole 31a of the active section 1 of feed eccentric 3, this moment, the working face 91 on the eccentric bushing 9 cooperated with the locating surface 31b at working hole 31a places in the active section 1, thus this when being arranged so that 2 rotations of needle gage regulating wheel active force can pass to locating surface 31b drive feed eccentric 3 by working face 91 and slide along guide pad 10a; The 4th, needle gage adjusting slider 5 is arranged in the chute 22c of needle gage regulating wheel 2, recess 54 is arranged on same end with open slot 22d, needle gage is regulated ratchet 4 roof pressures on needle gage adjusting slider 5, after making needle gage regulate ratchet 41 on the ratchet 4 to nibble with the gear teeth 53 on the needle gage adjusting slider 5, spacing spring 6 one ends are affixed in the circular hole 22b of needle gage regulating wheel 2, and other end roof pressure is screwed stop screw 7 needle gage adjusting ratchet 4 is connected on the lower shaft 1 in stopper slot 52 bottoms of needle gage adjusting slider 5; The 5th, the other end of work feed connecting rod 103 is connected on the work feed retainer 105 by cloth feeding crank assembly 104, and feed dog 106 is connected on the work feed retainer 105.
Needle gage adjusting device of the present invention has two place's adjusting positions, and has two retaining needle gage adjustable ranges.Its two places adjusting position is respectively to regulate and back down needle gage adjusting slider 5 by needle gage button 101a and regulate by unclamping needle gage adjusting ratchet 4.Its two retainings needle gage adjustable range is select two basic eccentric throws between feed eccentric 3 and the lower shaft 1 by the needs of actual needle gage size in producing, thereby realizes that by limiting structure two keep off the needle gage adjustment again.The set-up procedure that it is concrete:
One, little retaining needle gage is adjusted: screw stop screw 7 and make needle gage adjusting ratchet 4 be in releasing orientation with lower shaft 1, rotate lower shaft 1 this moment, feed eccentric 3 rotates with lower shaft 1, treat on the needle gage regulating wheel 2 V-arrangement graduation mark 22e with align as the positioning screw hole 10e on screw hole two 10f on Fig. 4 and the feed eccentric seat 10 shown in Figure 10, rotating needle gage again regulates ratchet 4 and backing pin 107 is leaned on the spacer pin 8 in left side as shown in Figure 1, screwing stop screw 7 makes stop screw 7 roof pressures be connected in 1 formation of lower shaft 1 up and down axle, be the first retaining needle gage this moment, and this retaining is little needle gage retaining.Behind the selected little needle gage retaining, by roof pressure needle gage button 101a, the lower end energy roof pressure of needle gage button 101a is in recess 54 bottoms of needle gage adjusting slider 5, after needle gage adjusting slider 5 overcomes spacing spring 6 and acts on the power of giving needle gage adjusting slider 5 from the bottom up and move down, the gear teeth 53 are thrown off with ratchet 41, and make needle gage button 101a withstand on recess 54 bottoms and open slot 22d bottom simultaneously, needle gage regulating wheel 2 is fixed motionless, rotation lower shaft 1 can be adjusted the relative position of feed eccentric 3 and needle gage regulating wheel 2, change the eccentric distance between feed eccentric 3 and the lower shaft 1, thereby realize the inching in the little retaining needle gage; Because needle gage adjusting ratchet 4 rotates synchronously with lower shaft 1 when adjusting by this, so the scope of this inching is the angle of two spacer pins 8.This two retainings formula is adjusted structure behind selected little needle gage retaining, can carry out the needle gage inching in the little needle gage retaining scope, and need not to tear open machine, and is easy to adjust.
Two, keep off the needle gage adjustment greatly: screw stop screw 7 and make needle gage adjusting ratchet 4 be in releasing orientation with lower shaft 1, rotate lower shaft 1 this moment, feed eccentric 3 rotates with lower shaft 1, treat that V-arrangement graduation mark 22e on the needle gage regulating wheel 2 is when aliging as the V-arrangement groove 10c on Fig. 4 and the feed eccentric seat 10 shown in Figure 10, rotating needle gage again regulates ratchet 4 and wherein backing pin 107 is leaned on the spacer pin 8 in left side as shown in Figure 1, screwing stop screw 7 makes stop screw 7 roof pressures be connected in 1 formation of lower shaft 1 up and down axle, be the second retaining needle gage this moment, and this retaining is the big needle distance retaining.Behind the selected big needle distance retaining, by roof pressure needle gage button 101a, the lower end energy roof pressure of needle gage button 101a is in recess 54 bottoms of needle gage adjusting slider 5, after needle gage adjusting slider 5 overcomes spacing spring 6 and acts on the power of giving needle gage adjusting slider 5 from the bottom up and move down, the gear teeth 53 are thrown off with ratchet 41, and make needle gage button 101a withstand on recess 54 bottoms and open slot 22d bottom simultaneously, needle gage regulating wheel 2 is fixed motionless, rotation lower shaft 1 can be adjusted the relative position of feed eccentric 3 and needle gage regulating wheel 2, change the eccentric distance between feed eccentric 3 and the lower shaft 1, thereby realize the inching in the big retaining needle gage; Because needle gage adjusting ratchet 4 rotates synchronously with lower shaft 1 when adjusting by this, so the maximum magnitude of this adjustment is the angle of two spacer pins 8.This two retainings formula is adjusted structure behind selected big needle distance retaining, also can carry out the needle gage inching in the big needle distance retaining scope, and need not to tear open machine, and is easy to adjust.
Mn is the offset of needle gage regulating wheel 2 relative lower shafts 1 as shown in figure 15, and ne is the offset of feed eccentric 3 relative needle gage regulating wheels 2, and me is that the vector superposed of mn and ne is total offset of feed eccentric 3 relative lower shafts 1.The movement locus that n is ordered is the circular arc of radius with mn for being the center of circle with m, and the movement locus that n is ordered among the present invention is as the circular arc between the BC among the figure.Promote e when the n point moves and slide between B1 and C1 between track circular arc BC, promptly total offset minimum of a value of feed eccentric 3 relative lower shafts 1 is mB1, and maximum is mC1.
When adjusting in little needle gage retaining scope, the movement locus that n is ordered is between circular arc BA, and total offset of feed eccentric 3 relative lower shafts 1 is mB1 to mA1; When adjusting in big needle distance retaining scope, the movement locus that n is ordered is between circular arc DC, and total offset of feed eccentric 3 relative lower shafts 1 is mC1 to mD1.Hence one can see that, and there are overlapping needle gage in adjustment of little needle gage retaining and big needle distance retaining when adjusting, and is provided with like this in the time of avoiding needle gage to adjust neutral to occur, can be connected two retaining needle gages preferably.
Present embodiment is close with embodiment 1 26S Proteasome Structure and Function, and wherein feed eccentric seat 10 inboards have locating surface one, the corresponding locating surface two that cooperates with locating surface one that is provided with on the lower shaft 1.Feed eccentric seat 10 forms a fixed connection with lower shaft 1 by locating surface one and the locating surface two that cooperates, and is carved with two V-arrangement groove 10c on the linkage section 10b of feed eccentric seat 10, is used for the selected usefulness of large and small retaining with V-arrangement graduation mark 22e contrast respectively.
Specific embodiment described herein only is that the present invention's spirit is illustrated.The technical staff of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used lower shaft 1 morely, needle gage regulating wheel 2, stage 1, stage 2 22, locating hole 22a, circular hole 22b, chute 22c, open slot 22d, V-arrangement graduation mark 22e, feed eccentric 3, active section 1, working hole 31a, locating surface 31b, active section 2 32, guide channel 32a, needle gage is regulated ratchet 4, ratchet 41, screwed hole 42, needle gage adjusting slider 5, projection 51, stopper slot 52, the gear teeth 53, recess 54, through hole 55, spacing spring 6, stop screw 7, spacer pin 8, eccentric bushing 9, working face 91, oil groove 92, oilhole 93, feed eccentric seat 10, guide pad 10a, linkage section 10b, V-arrangement groove 10c, screw hole one 10d, dog screw 10e, screw hole two 10f, needle gage button 101a, shoulder block 101b, needle gage button panel 101c, spring 101d, catch 101e, needle plate connecting plate 102, work feed connecting rod 103, cloth feeding crank assembly 104, roller 104a, feeding connecting rod 104b, cloth feeding crank one 104c, cloth feeding crank pin 104d, feed spool 104e, cloth feeding crank two 104f, feeding connecting rod screw 104g, work feed retainer 105, feed dog 106, backing pin 107 terms such as grade, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; They are construed to any additional restriction all is contrary with spirit of the present invention.
Claims (10)
1. two of Sewing machines keep off formula needle gage regulators, be arranged on the lower shaft (1), comprise the needle gage regulating wheel (2) and the feed eccentric (3) that are enclosed within on the lower shaft (1), described needle gage regulating wheel (2) and feed eccentric (3) are eccentric wheel, one end of described feed eccentric (3) is enclosed within on the needle gage regulating wheel (2), be provided with the guiding mechanism that can make feed eccentric (3) and the slippage of the circumferential fixed radial energy of lower shaft (1) relative lower shaft (1) between the other end and the lower shaft (1), it is characterized in that, described lower shaft (1) is provided with and can regulates ratchet (4) with the needle gage that lower shaft (1) removably connects, and described needle gage is regulated on the ratchet (4) and offered ratchet (41); Above-mentioned needle gage regulating wheel (2) and needle gage regulate be provided with between the ratchet (4) can with needle gage regulating wheel (2) the needle gage adjusting slider (5) that circumferentially fixed radial can relative needle gage regulating wheel (2) slippage, have the gear teeth (53) that can cooperate on the described needle gage adjusting slider (5), and between described needle gage regulating wheel (2) and described needle gage adjusting slider (5), be provided with the elastic positioning structure that the described gear teeth (53) are meshed with described ratchet (41) with above-mentioned ratchet (41).
2. keep off formula needle gage regulators according to two of right 1 described Sewing machines, it is characterized in that, radially offer chute (22c) on one end face of described needle gage regulating wheel (2), above-mentioned needle gage adjusting slider (5) is arranged in the chute (22c) and the one end stretches out chute (22c).
3. keep off formula needle gage regulators according to two of right 1 described Sewing machines, it is characterized in that, the projection (51) that has projection on the described needle gage adjusting slider (5), described projection (51) stretch out the end face of above-mentioned needle gage regulating wheel (2), and the above-mentioned gear teeth (53) are opened on the projection (51).
4. keep off formula needle gage regulators according to two of right 1 or 2 or 3 described Sewing machiness, it is characterized in that, described elastic positioning structure comprises a spacing spring (6), one end of described spacing spring (6) is connected on the needle gage regulating wheel (2), and the other end arrives on the needle gage adjusting slider (5) by the elastic force roof pressure.
5. according to two retaining formula needle gage regulators of right 4 described Sewing machiness, it is characterized in that described needle gage adjusting slider (5) offers stopper slot (52), above-mentioned spacing spring (6) is positioned at stopper slot (52).
6. keep off formula needle gage regulators according to two of right 1 or 2 or 3 described Sewing machiness, it is characterized in that, described needle gage is regulated ratchet (4) and is enclosed within on the lower shaft (1), on the outer peripheral face of needle gage adjusting ratchet (4), offer several screwed holes that runs through (42), be provided with stop screw (7) in the described screwed hole (42), the inner energy roof pressure of described stop screw (7) is on lower shaft (1).
7. keep off formula needle gage regulators according to two of right 6 described Sewing machiness, it is characterized in that described needle gage is regulated to be provided with between ratchet (4) and the described needle gage regulating wheel (2) and can be limited the limiting structure that relatively rotates angle that needle gage is regulated ratchet (4) and needle gage regulating wheel (2).
8. keep off formula needle gage regulators according to two of right 7 described Sewing machiness, it is characterized in that, described limiting structure comprises and is installed on needle gage regulating wheel (2) end face and divides two spacer pins (8) that are arranged and be arranged on backing pin (107) on needle gage adjusting ratchet (4) outer peripheral face that described backing pin (107) is positioned between two spacer pins (8).
9. keep off formula needle gage regulators according to two of right 1 or 2 or 3 described Sewing machiness, it is characterized in that, on described guiding mechanism comprises the feed eccentric seat (10) that is connected on the lower shaft (1) and is opened in feed eccentric (3) end face and the guide channel (32a) offered of vertical lower shaft (1) axial line, has the guide pad (10a) that cooperates with guide channel (32a) on the described feed eccentric seat (10).
10. keep off formula needle gage regulators according to two of right 9 described Sewing machiness, it is characterized in that, described feed eccentric seat (10) is enclosed within on the lower shaft (1), be provided with dog screw (10e) on feed eccentric seat (10), described feed eccentric seat (10) is connected on the lower shaft (1) by dog screw (10e).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010610347 CN102011274B (en) | 2010-12-28 | 2010-12-28 | Two-gear type stitch length adjusting device of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010610347 CN102011274B (en) | 2010-12-28 | 2010-12-28 | Two-gear type stitch length adjusting device of sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102011274A true CN102011274A (en) | 2011-04-13 |
| CN102011274B CN102011274B (en) | 2013-01-30 |
Family
ID=43841592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010610347 Expired - Fee Related CN102011274B (en) | 2010-12-28 | 2010-12-28 | Two-gear type stitch length adjusting device of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102011274B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828352A (en) * | 2012-08-27 | 2012-12-19 | 吴江市中盛机械有限公司 | Feeding oscillating bar seat for industrial sewing machine |
| CN103451857A (en) * | 2012-05-31 | 2013-12-18 | Juki株式会社 | Sewing machine |
| CN104862884A (en) * | 2015-06-10 | 2015-08-26 | 杰克缝纫机股份有限公司 | Needle pitch adjusting mechanism of platform type flat seaming machine |
| CN105734849A (en) * | 2016-04-27 | 2016-07-06 | 杰克缝纫机股份有限公司 | Stitch length adjusting mechanism of lockstitch sewing machine |
| CN105908386A (en) * | 2016-06-24 | 2016-08-31 | 杰克缝纫机股份有限公司 | Stitch length adjusting device and sewing machine |
| CN106702602A (en) * | 2016-10-10 | 2017-05-24 | 阮晨航 | Lockstitch sewing machine |
| CN107012597A (en) * | 2017-04-28 | 2017-08-04 | 杰克缝纫机股份有限公司 | A kind of simple needle gage governor motion of sewing machine and sewing machine |
| CN107099938A (en) * | 2017-04-28 | 2017-08-29 | 杰克缝纫机股份有限公司 | A kind of simple needle gage governor motion of sewing machine and sewing machine |
| CN107973236A (en) * | 2017-11-11 | 2018-05-01 | 华强方特（芜湖）文化科技有限公司 | The Multi-stage regulating type single-point that a kind of stage is in a row performed hangs guidance system |
| CN111850845A (en) * | 2019-04-24 | 2020-10-30 | 杰克缝纫机股份有限公司 | Sewing machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0424061A (en) * | 1990-05-18 | 1992-01-28 | Brother Ind Ltd | Feed pitch detector for sewing machine |
| JPH0626780U (en) * | 1992-09-07 | 1994-04-12 | ジューキ株式会社 | Sewing machine pitch adjuster |
| CN1259474C (en) * | 2001-08-03 | 2006-06-14 | 重机公司 | Cup seaming machine |
| CN201473720U (en) * | 2009-06-16 | 2010-05-19 | 浙江恒一科技有限公司 | Fabric-feeding eccentric wheel component of sewing machine |
-
2010
- 2010-12-28 CN CN 201010610347 patent/CN102011274B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0424061A (en) * | 1990-05-18 | 1992-01-28 | Brother Ind Ltd | Feed pitch detector for sewing machine |
| JPH0626780U (en) * | 1992-09-07 | 1994-04-12 | ジューキ株式会社 | Sewing machine pitch adjuster |
| CN1259474C (en) * | 2001-08-03 | 2006-06-14 | 重机公司 | Cup seaming machine |
| CN201473720U (en) * | 2009-06-16 | 2010-05-19 | 浙江恒一科技有限公司 | Fabric-feeding eccentric wheel component of sewing machine |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103451857A (en) * | 2012-05-31 | 2013-12-18 | Juki株式会社 | Sewing machine |
| CN103451857B (en) * | 2012-05-31 | 2017-03-01 | Juki株式会社 | Sewing machine |
| CN102828352A (en) * | 2012-08-27 | 2012-12-19 | 吴江市中盛机械有限公司 | Feeding oscillating bar seat for industrial sewing machine |
| CN104862884A (en) * | 2015-06-10 | 2015-08-26 | 杰克缝纫机股份有限公司 | Needle pitch adjusting mechanism of platform type flat seaming machine |
| CN105734849B (en) * | 2016-04-27 | 2019-03-01 | 杰克缝纫机股份有限公司 | Flush joint needle pitch regulating mechanism |
| CN105734849A (en) * | 2016-04-27 | 2016-07-06 | 杰克缝纫机股份有限公司 | Stitch length adjusting mechanism of lockstitch sewing machine |
| CN105908386A (en) * | 2016-06-24 | 2016-08-31 | 杰克缝纫机股份有限公司 | Stitch length adjusting device and sewing machine |
| CN105908386B (en) * | 2016-06-24 | 2020-11-24 | 杰克缝纫机股份有限公司 | Needle pitch adjusting device and sewing machine |
| CN106702602B (en) * | 2016-10-10 | 2020-05-01 | 阮晨航 | Flush joint machine |
| CN106702602A (en) * | 2016-10-10 | 2017-05-24 | 阮晨航 | Lockstitch sewing machine |
| CN107099938A (en) * | 2017-04-28 | 2017-08-29 | 杰克缝纫机股份有限公司 | A kind of simple needle gage governor motion of sewing machine and sewing machine |
| CN107099938B (en) * | 2017-04-28 | 2019-06-04 | 杰克缝纫机股份有限公司 | A kind of simple needle gage regulating mechanism of sewing machine and sewing machine |
| CN107012597A (en) * | 2017-04-28 | 2017-08-04 | 杰克缝纫机股份有限公司 | A kind of simple needle gage governor motion of sewing machine and sewing machine |
| CN107973236A (en) * | 2017-11-11 | 2018-05-01 | 华强方特（芜湖）文化科技有限公司 | The Multi-stage regulating type single-point that a kind of stage is in a row performed hangs guidance system |
| CN107973236B (en) * | 2017-11-11 | 2023-06-06 | 华强方特（芜湖）文化科技有限公司 | Multistage regulation type single-point crane guiding system for stage row performance |
| CN111850845A (en) * | 2019-04-24 | 2020-10-30 | 杰克缝纫机股份有限公司 | Sewing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102011274B (en) | 2013-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102011274B (en) | Two-gear type stitch length adjusting device of sewing machine | |
| CN104233644B (en) | The sewing machine of top and bottom feed | |
| CN104233635B (en) | Edge-pulling machine | |
| CN101545179A (en) | Sewing machine | |
| CN109355814B (en) | Cloth feeding tooth rack adjusting method | |
| CN101649529B (en) | Adjusting device for differential mechanism of straight flat seaming machine | |
| CN104562456B (en) | Auxiliary feeding device for sewing machine | |
| CN202292209U (en) | Work fixture | |
| CN201473719U (en) | Adjustor of differential mechanism of straight tubular flat seaming machine | |
| CN104131422B (en) | Sewing machine with adjustable needle bar stroke | |
| CN206521587U (en) | A kind of upper feed mechanism of sewing machine | |
| CN107974770A (en) | A kind of zigzag stitching device based on flat seam machine | |
| CN205035620U (en) | Transmission mechanism of sewing machine | |
| CN208035410U (en) | Displacement formula clamping and pressing device | |
| CN201872876U (en) | Controllable positioning type accelerator handle for micro tractor | |
| CN205291878U (en) | Circular screen printer's register device | |
| CN201024280Y (en) | Yarn moving regulation device for computerized flat knitting machine | |
| CN206545102U (en) | A kind of needle gage self-checking device of sewing machine | |
| CN204058912U (en) | The Sewing machines that needle bar stroke is adjustable | |
| CN202107886U (en) | Transmission mechanism of manual stitch sewing machine | |
| CN207227720U (en) | A kind of template rotating mechanism of cutter template sewing machine | |
| CN205556998U (en) | Domestic sewing machine's tailor gauge needle adjusts structure | |
| CN205934320U (en) | Linking machine transmission system | |
| CN203333971U (en) | Upper pulling machine | |
| US2000929A (en) | Work supporting means for sewing machines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151204 Address after: Taizhou City, Zhejiang province 318000 Jiaojiang Xiachen street, Airport Road No. 1 Patentee after: ZHEJIANG GEMSY MECHANICAL & ELECTRICAL CO., LTD Address before: 318000, No. 638, East Ring Road, Taizhou Economic Development Zone, Jiaojiang District, Zhejiang, Taizhou Patentee before: Zhejiang Gemsy Mechanical and Electrical Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20181228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |