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CN108589061A - A kind of sewing machine and its differential regulating mechanism - Google Patents

A kind of sewing machine and its differential regulating mechanism Download PDF

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Publication number
CN108589061A
CN108589061A CN201810488284.1A CN201810488284A CN108589061A CN 108589061 A CN108589061 A CN 108589061A CN 201810488284 A CN201810488284 A CN 201810488284A CN 108589061 A CN108589061 A CN 108589061A
Authority
CN
China
Prior art keywords
differential
swing rod
regulating mechanism
retainer
shaft
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
Application number
CN201810488284.1A
Other languages
Chinese (zh)
Other versions
CN108589061B (en
Inventor
李卫超
杨聪聪
王志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jack Technology Co Ltd
Original Assignee
Jack Sewing Machine Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jack Sewing Machine Co Ltd filed Critical Jack Sewing Machine Co Ltd
Priority to CN201810488284.1A priority Critical patent/CN108589061B/en
Publication of CN108589061A publication Critical patent/CN108589061A/en
Application granted granted Critical
Publication of CN108589061B publication Critical patent/CN108589061B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B27/00Work-feeding means
    • D05B27/02Work-feeding means with feed dogs having horizontal and vertical movements
    • D05B27/08Work-feeding means with feed dogs having horizontal and vertical movements with differential feed motions

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

The application discloses a kind of differential regulating mechanism of sewing machine, including differential retainer, adjusting part and differential shaft, further include the oscillating bar assembly that both ends are hingedly connected between the differential retainer and the adjusting part and the wobble drive bar for being connected with cloth feeding mechanism, and for differential slide block assembly that the differential shaft is passed through and is hinged respectively with the one end of the wobble drive bar and the oscillating bar assembly far from the differential retainer.Using the differential regulating mechanism, since the differential slide block assembly is hinged with the oscillating bar assembly and the wobble drive bar respectively, prismatic pair is substituted using revolute pair, solve because sliding block is relative to sliding slot clamping stagnation cause fluctuation of service the problems such as, therefore the functional reliability of differential regulating mechanism provided herein is promoted.Disclosed herein as well is a kind of sewing machine, working efficiency is higher.

Description

A kind of sewing machine and its differential regulating mechanism
Technical field
The present invention relates to technical field of textile equipment, more particularly to the differential regulating mechanism of a kind of sewing machine.The present invention is also It is related to a kind of sewing machine.
Background technology
The operation principle of existing sewing machine is that shank drives lead to be passed through under the drive of the drive set on textile fabric bottom The looper that portion is installed with coiling makes lead with coiling weave in realize sewing.It is former in view of the special work of existing sewing machine Reason, makes it have that stitching speed is fast, suture quality is good, the advantages such as easy to operate, deep to be favored by people, is widely used in The fields such as clothes, household.
Existing sewing machine generally includes shank thorn material and jumper mechanism, differential regulating mechanism, cloth feeding mechanism, looper hooking machine Structure etc..Wherein, differential regulating mechanism is the mechanism being adjusted to complete work feed function and the various elastic fabrics of adaptation, main Will by adjust former and later two feeding teeth feeding speed and feeding away from, with overcome upper layer and lower layer sewing because it is sliding prolong or shorten due to produce Change shape, is specially adapted to the suture of various slips and elastic sewing.
Attached drawing 1 is please referred to, Fig. 1 is the structural schematic diagram of existing differential regulating mechanism.By attached drawing 1 it is found that existing difference Dynamic regulating mechanism includes differential shift fork 01, Differential Driving connecting rod 02 and differential slide block assembly 03, wherein differential slide block assembly 03 wraps Include differential frame 031 and differential sliding block 032.The differential arc slide bar of differential frame 031 passes through differential sliding block 032, differential sliding block 032 to lean on The side of nearly differential fork 01 is equipped with sliding block, and correspondingly, differential fork 01 is equipped with the sliding slot slided for sliding block.It is adjusted when manual When spanner, it is connected to the differential connecting rod adjusted between spanner and differential fork 01 and transmits torque to differential fork 01, it is differential to pull out Fork 01 drives differential sliding block 032 to rotate around differential shaft, and differential sliding block 032 drives differential frame 031 to act, differential frame 031 drive with Connected 02 action of Differential Driving connection, to make differential retainer act, to change differential tooth between feed dog Effective work feed distance ratio, realize it is differential.
It can be seen that the differential regulating mechanism of existing sewing machine usually relies on sliding slot slide block mechanism to realize power transmission, In practical work process, when sliding block is moved relative to sliding slot, there are severe frictions between sliding block and sliding slot, lead to sliding block clamping stagnation In the stable operation in sliding slot, seriously affecting differential regulating mechanism, therefore, the work of the differential regulating mechanism of existing sewing machine can It is poor by property.
Invention content
In view of this, the purpose of the present invention is to provide a kind of differential regulating mechanism of sewing machine, operation is relatively stablized, work It is higher to make reliability.Another object of the present invention is to provide a kind of sewing machine, working efficiency is higher.
Its concrete scheme is as follows:
The application provides a kind of differential regulating mechanism of sewing machine, including differential retainer, adjusting part and differential shaft, also wraps It includes:
Both ends are hingedly connected to the oscillating bar assembly between the differential retainer and the adjusting part;
Wobble drive bar for being connected with cloth feeding mechanism;
It is passed through for the differential shaft and respectively with the wobble drive bar and the oscillating bar assembly far from the differential retainer The differential slide block assembly that is hinged of one end.
Preferably, the differential slide block assembly includes:
The differential sliding block being hinged with the oscillating bar assembly;
It is installed on the differential shaft and has across the differential arc slide bar of the differential sliding block and driven with the swing The differential frame for the differential crank that lever is hinged.
Preferably, the oscillating bar assembly includes:
The first swing rod being hinged below the differential shaft and with the adjusting part;
Positioned at the outside of the differential shaft and both ends are respectively with the differential sliding block and first swing rod far from the tune The second swing rod that one end of section component is hinged;
Above the differential shaft and both ends are connected with the difference with the differential retainer and second swing rod respectively The third swing rod that one end of movable slider is hinged.
Preferably, second swing rod be close to the differential shaft side be equipped with kept away for avoiding the arc of the differential shaft Allow slot.
Preferably, further include:
Positioned at the lower section of the one end of the differential retainer far from the third swing rod, for guiding the differential retainer movement Differential guide pad;
Crankshaft group across the differential guide pad, for driving the differential guide pad movement.
Preferably, further include:
Synchronization steering slot set on the one end of the differential retainer far from the differential guide pad;
In the synchronization steering slot, it is same for guiding the differential retainer to move synchronously with the differential guide pad Walk guide pad.
Preferably, further include being set between the adjusting part and first swing rod and consolidating with what the differential shaft was connected Fixed board.
Preferably, the adjusting part includes:
It is fixed on dial of the fixed plate far from first swing rod side;
The fixed plate is articulated with far from first swing rod side and between the dial and the fixed plate Adjusting spanner;
Sequentially pass through the dial and the adjusting for adjusting spanner and being detachably secured on the adjusting spanner Fastener.
Preferably, further include:
One end is fixedly arranged on the adjusting spanner and is articulated with first pendulum close to one end of first swing rod and the other end On bar, across the fixed plate and for connecting the adjusting swing connecting bar for adjusting spanner and first swing rod.
The application also provides a kind of sewing machine, including cloth feeding mechanism, further includes any one of them as above and the work feed The connected differential regulating mechanism of mechanism.
With respect to the background art, differential regulating mechanism provided herein, including differential retainer, adjusting part and differential Axis further includes oscillating bar assembly that both ends are hingedly connected between the differential retainer and the adjusting part and is used for and cloth feed machine The connected wobble drive bar of structure, and pass through for the differential shaft and remote with the wobble drive bar and the oscillating bar assembly respectively The differential slide block assembly that one end from the differential retainer is hinged.
Wherein, one end of the differential slide block assembly is hinged with the wobble drive bar, in order to cloth feeding mechanism phase Even;The other end of the differential slide block assembly is hinged with the oscillating bar assembly, and the both ends of the oscillating bar assembly are divided into and do not cut with scissors It is connected between the differential retainer and the adjusting part.
When adjusting the adjusting part, the adjusting part drives the differential retainer dynamic by the oscillating bar assembly Make, while the oscillating bar assembly drives the differential slide block assembly to be rotated around the differential shaft, with the differential slide block assembly phase The wobble drive bar even drives cloth feeding mechanism action, to keep distance of the differential retainer between cloth feeding mechanism real It now adjusts, realizes differential.
It follows that under the premise of can realize differential function, the differential slide block assembly passes through hinged mode point It is not connected with the oscillating bar assembly and the wobble drive bar, namely original prismatic pair is substituted using revolute pair, avoids using The prismatic pair formed by sliding slot and sliding block, fluctuation of service etc. is asked caused by overcome due to sliding slot is relative to sliding block clamping stagnation Topic, the kind of drive is more reasonable, and therefore, the functional reliability of differential regulating mechanism provided herein is higher.
The sewing machine for including the differential regulating mechanism, because of functional reliability height, the probability of failure becomes smaller, safeguard and Service time shortens, and is conducive to shorten the non-productive work time, is correspondingly conducive to extend the working time, to make its work imitate Rate is promoted.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis The attached drawing of offer obtains other attached drawings.
Fig. 1 is the structural schematic diagram of existing differential regulating mechanism;
Fig. 2 is a kind of structural schematic diagram for the differential regulating mechanism that specific embodiment is provided of the present invention;
Fig. 3 is the second view of Fig. 2;
Fig. 4 is the third view of Fig. 2;
Fig. 5 is the structural schematic diagram of section components in Fig. 2;
Fig. 6 is the structural schematic diagram of oscillating bar assembly, wobble drive bar and differential slide block assembly in Fig. 5;
Fig. 7 is the structural schematic diagram of oscillating bar assembly in Fig. 5;
Fig. 8 is the structural schematic diagram of differential slide block assembly in Fig. 5;
Fig. 9 is the structural schematic diagram of adjusting part in Fig. 2;
Reference numeral is as follows:
Differential shift fork 01, Differential Driving connecting rod 02 and differential slide block assembly 03;
Differential frame 031 and differential sliding block 032;
Differential retainer 1, oscillating bar assembly 3, wobble drive bar 4, differential shaft 5, differential slide block assembly 6, is fixed adjusting part 2 Plate 7 and cloth feeding mechanism 8;
Differential tooth 11, synchronization steering slot 12 and synchronization steering block 13;
Dial 21 adjusts spanner 22, adjusts fastener 23 and adjusts swing connecting bar 24;
First swing rod 31, the second swing rod 32 and third swing rod 33;
Arc escape groove 321;
Differential sliding block 61 and differential frame 62;
Differential arc slide bar 621 and differential crank 622;
Hinged sliding block 611 and sliding block baffle 612;
Feed dog frame 81, feed dog 82, differential guide pad 83 and crankshaft group 84.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
In order to enable those skilled in the art to better understand the solution of the present invention, right in the following with reference to the drawings and specific embodiments The present invention is described in further detail.
It please refers to Fig.2 to Fig. 5, Fig. 2 and shows for a kind of structure for the differential regulating mechanism that specific embodiment is provided of the present invention It is intended to;Fig. 3 is the second view of Fig. 2;Fig. 4 is the third view of Fig. 2;Fig. 5 is the structural schematic diagram of section components in Fig. 2.
The embodiment of the invention discloses a kind of differential regulating mechanisms of sewing machine, including differential retainer 1, adjusting part 2, pendulum Bar assembly 3, wobble drive bar 4, differential shaft 5 and differential slide block assembly 6 further include being set between oscillating bar assembly 3 and adjusting part 2 And the fixed plate 7 being connected with differential shaft 5.Wherein, differential slide block assembly 6 is cut with scissors with oscillating bar assembly 3 and 4 phase of wobble drive bar respectively It connects, substitutes prismatic pair using revolute pair, solve the problems such as clamping stagnation caused by original sliding block slide way mechanism, make its reliable operation Property is promoted.
Wherein, differential retainer 1 and the feed dog frame 81 of cloth feeding mechanism 8 are arranged in parallel, and are set close to one end of cloth feeding mechanism 8 There is differential tooth 11, correspondingly, respective end is equipped with feed dog 82, the distance between differential tooth 11 and feed dog 82 on feed dog frame 81 Adjusting is realized by differential retainer 1 and feed dog frame 81, and differential retainer 1 and the mutual cooperation of feed dog frame 81 are adjusted with suitable It should be in the sewing of various elastic fabrics.
Fig. 6 to Fig. 9 is please referred to, Fig. 6 is the structural representation of oscillating bar assembly, wobble drive bar and differential slide block assembly in Fig. 5 Figure;Fig. 7 is the structural schematic diagram of oscillating bar assembly in Fig. 5;Fig. 8 is the structural schematic diagram of differential slide block assembly in Fig. 5;Fig. 9 is Fig. 2 The structural schematic diagram of middle adjusting part.
Adjusting part 2 is mainly used for inputting differential amount to differential adjustment structure provided herein.In the specific implementation In example, adjusting part 2 includes dial 21, adjusts spanner 22 and adjust fastener 23.
It is subject to the active view of attached drawing 2, fixed plate 7 is the inside of fixed plate 7 close to the side of oscillating bar assembly 3, fixed Plate 7 is the outside of fixed plate 7 close to the side of spanner 22 is adjusted, and the interior outside of fixed plate 7 discussed below is taken this as the standard.
Dial 21 is fixed on side namely dial 21 of the fixed plate 7 far from oscillating bar assembly 3 and is fixed on fixed plate 7 Outside.The one end for adjusting spanner 22 is articulated with the outside of fixed plate 7, and adjust spanner 22 be located at dial 21 and fixed plate 7 it Between.It adjusts fastener 23 to sequentially pass through dial 21 and adjust spanner 22, and is detachably secured to adjust on spanner 22.At this In specific embodiment, dial 21 is in substantially arc-shaped, and both ends are fixed on fixation by fasteners such as holding screw or rivets On the lateral surface of plate 7, among it be equipped with two radially direction be in staggered distribution it is arc-shaped run through slot, one of them is to be used for Arc-shaped via is passed through for adjusting fastener 23, the other is outer is equipped with scale value adjusts spanner 22 relative to quarter to observe The arc-shaped peep hole for the rotational angle that scale 21 rotates.It is that bottom is articulated with length in fixed plate 7 by axis pin to adjust spanner 22 Stripe board.It adjusts spanner 22 and corresponds to the position of arc-shaped via equipped with the threaded hole for secured adjusted fastener 23, tune Section spanner 22 corresponds to the pointer for being equipped with the position of arc-shaped peep hole and being used to indicate scale value.Adjusting fastener 23 is specially Head radius is more than the arc-shaped fillister head screw for crossing hole width, is typically provided with for anti-skidding in the peripheral surface of the fillister head screw Embossing.Certainly, dial 21, the structure of adjusting spanner 22 and adjusting fastener 23 and type are without being limited thereto, using other Similar scheme substitute have no effect on realize the application purpose.
The both ends of oscillating bar assembly 3 are hingedly connected between differential retainer 1 and adjusting part 2.Wobble drive bar 4 and cloth feed machine Structure 8 is connected, and differential slide block assembly 6 is passed through for differential shaft 5, and is hinged respectively with oscillating bar assembly 3 and wobble drive bar 4.
Wherein, differential slide block assembly 6 includes differential sliding block 61 and differential frame 62, and differential sliding block 61 is cut with scissors with 3 phase of oscillating bar assembly It connects, differential frame 62 is mounted on differential shaft 5, and with across the differential arc slide bar 621 of differential sliding block 61 and and wobble drive The differential crank 622 that bar 4 is hinged.
In this specific embodiment, differential sliding block 61 includes hinged sliding block 611 and for the differential arc slide bar of backstop 621 Sliding block baffle 612.Specifically, hinged sliding block 611 includes with the slider body for being substantially in long waist type, further includes being set to the sliding block Sliding block shaft of the ontology close to the side of oscillating bar assembly 3 keeps slider body opposite so that the sliding block shaft passes through oscillating bar assembly 3 It is rotated in oscillating bar assembly 3.Sliding block 611 is hinged to further comprise being set to arc chute of the slider body far from sliding block shaft side, It is moved for use in differential arc slide bar 621 is guided.Certainly, the structure of hinged sliding block 611 is without being limited thereto.
Differential frame 62 further includes the differential frame ontology for being used to support differential arc slide bar 621 and differential crank 622, this is differential Frame ontology is specially cylindrical support sleeve, and center is equipped with the centre bore for being passed through for differential shaft 5, so that differential frame 62 is around difference Moving axis 5 is moved relative to differential sliding block 61.Differential arc slide bar 621 and differential crank 622 are set to the both ends of differential frame ontology, The two is in staggered distribution and is arranged in parallel along the central axis of differential frame 62.It is subject to the active view of attached drawing 2, differential arc slide bar 621 are located at the left side of differential crank 622.Certainly, the structure of differential frame 62 is without being limited thereto, and concrete foundation actual parameter can be made suitable When adjustment.
In this specific embodiment, it is subject to the active view of attached drawing 2, differential shaft 5 claims close to the direction of the first swing rod 31 For the lower section of differential shaft 5, differential shaft 5 is known as the top of differential shaft 5 close to the direction of third swing rod 33, and differential shaft 5 is close to second The direction of swing rod 32 is known as the outside of differential shaft 5, and orientation related with differential shaft 5 discussed below is taken this as the standard.
Oscillating bar assembly 3 includes the first swing rod 31, the second swing rod 32 and third swing rod 33.Wherein, the first swing rod 31 is located at poor The lower section of moving axis 5, and be hinged with adjusting part 2.Second swing rod 32 is located at the outside of differential shaft 5, and the two of the second swing rod 32 End is hinged with differential sliding block 61 and first one end of swing rod 31 far from adjusting part 2 respectively.Third swing rod 33 is located at differential shaft 5 Top, and the both ends of third swing rod 33 are connected with one end phase of differential sliding block 61 with differential retainer 1 and the second swing rod 32 respectively It is hinged.
In the specific implementation, the both ends of the first swing rod 31 are hingedly connected between the second swing rod 32 and adjusting spanner 22, Not on the same line due to two hinge joints, therefore the first swing rod 31 is strip bends swing rod.Specifically, the first swing rod 31 leans on The corresponding end of one end of nearly second swing rod 32 and the second swing rod 32 is equipped with round hinge hole, will pass through axis pin by the first swing rod 31 and second swing rod 32 be hinged together.First swing rod 31 is equipped with bending end close to the one end for adjusting spanner 22, which passes through It is bent to form round hinge hole, while bending to be respectively equipped on end head and interlude corresponding with bending end head and mutually pass through Logical circular mounting hole, to facilitate the fasteners such as installation bolt nut or holding screw, to finely tune the round hinge on bending end Connect the outer diameter in hole.Correspondingly, it adjusts to be additionally provided between spanner 22 and the bending end of the first swing rod 31 and adjusts swing connecting bar 24.It adjusts One end of swing connecting bar 24, which is fixedly arranged on, adjusts spanner 22 close to one end of the first swing rod 31, and the other end is articulated with the first swing rod 31 Bending end on.It adjusts swing connecting bar 24 and passes through fixed plate 7, spanner 22 and the first swing rod 31 are adjusted for use in connection.Specifically Ground, the one end for adjusting swing connecting bar 24 are welded on adjusting spanner 22, and the other end directly passes through holding screw or bolt and nut etc. Fastener is fixed in the bending end of the first swing rod 31.Certainly, the first swing rod 31 and the structure of swing connecting bar 24 and hinged is adjusted Mode is without being limited thereto.
Second swing rod, 32 one end is articulated with the end of the first swing rod 31, and the other end is articulated with third swing rod 33 and differential simultaneously On sliding block 61.The side of differential shaft 5 is close to equipped with the arc escape groove 321 for avoiding differential shaft 5 in the second swing rod 32.Specifically Ground, the first swing rod 31 are articulated with the bottom end of the second swing rod 32 by axis pin, and third swing rod 33 and differential sliding block 61 are articulated with second The top of swing rod 32, and third swing rod 33 and differential sliding block 61 are distributed in the both sides at 32 top of the second swing rod.Second swing rod 32 Substantially elongated, arc escape groove 321 is located on 32 inside top face of the second swing rod.It is worth noting that, the second swing rod 32 Any point to the minimum range between 5 central axis of differential shaft on medial surface should be greater than the radius equal to differential shaft 5, to prevent hair Raw interference.Certainly, the structure of the second swing rod 32 is without being limited thereto.
33 one end of third swing rod is articulated with the top of the second swing rod 32, and the other end is articulated on differential retainer 1.It is specific at this In implementation, third swing rod 33 is in substantially long waist type, and both ends are respectively equipped with round hinge hole.It is worth noting that, third swing rod 33 It is articulated with bottom of the differential retainer 1 far from 8 one end of cloth feeding mechanism by axis pin, certainly, the position of hinge joint is without being limited thereto.
In addition, the application further includes differential guide pad 83 and crankshaft group 84, in fact, differential guide pad 83 and bent axle group Part 84 can also belong to a part for cloth feeding mechanism 8.Differential guide pad 83 is located at one of differential retainer 1 far from third swing rod 33 The lower section at end is mainly used for guiding the movement of differential retainer 1.Crankshaft group 84 includes the bent axle across differential guide pad 83, main It is used to drive differential guide pad 83 to act.In this specific embodiment, the bottom of differential retainer 1 is set for accommodating differential guiding The rectangular guide groove of block 83, correspondingly, the outer profile of differential guide pad 83 is also rectangular.Certainly, the foreign steamer of differential guide pad 83 Exterior feature can be the shapes such as arc or regular polygon, and the guide groove Internal periphery of differential retainer 1 and 83 outer profile of differential guide pad are equal Corresponding adjustment can be made according to actual parameter.The contact facial contour that the bent axle of crankshaft group 84 is in contact with differential guide pad 83 For the cam contour with misconduct cambered surface, will pass through differential guide pad 83, to drive differential retainer 1 to realize differential.
The application further includes synchronization steering slot 12 and synchronization steering block 13, and it is separate that synchronization steering slot 12 is set to differential retainer 1 One end of differential guide pad 83, specially rectangular synchronization steering slot.Synchronization steering block 13 is set in synchronization steering slot 12, main to use It is moved synchronously with differential guide pad 83 in guiding differential retainer 1.In this specific embodiment, synchronization steering block 13 is specially and side Just as the corresponding square slider of step guide groove.Certainly, the structure of synchronization steering slot 12 and synchronization steering block 13 is without being limited thereto.
The operation principle of the differential regulating mechanism of sewing machine provided herein is as follows:
It unscrews and adjusts fastener 23, rotated relative to dial 21 and adjust spanner 22;
It adjusts spanner 22 and drives first to swing 31 rotations by adjusting swing connecting bar 24, the first swing rod 31 transmits torque to Second swing rod 32;
Second swing rod 32 drives third swing rod 33 to act, and third swing rod 33 drives differential retainer 1 relative to feed dog frame 81 Action, to adjust the distance between differential tooth 11 and feed dog 82;
The second swing rod 32 drives differential sliding block 61 to be slided along the differential arc slide bar 621 of differential frame 62 simultaneously, differential frame 62 It is rotated relative to differential shaft 5, differential crank 622 drives wobble drive bar 4 to act, and wobble drive bar 4 drives cloth feeding mechanism 8 dynamic Make, to adjust feed dog frame 81 relative to differential retainer 1, further adjusts the distance between differential tooth 11 and feed dog 82;
Differential adjusting is completed, tightens and adjusts fastener 23.
In conclusion the differential regulating mechanism of sewing machine provided herein, including differential retainer 1, adjusting part 2, Oscillating bar assembly 3, wobble drive bar 4, differential shaft 5 and differential slide block assembly 6, wherein differential slide block assembly 6 respectively with oscillating bar assembly 3 and wobble drive bar 4 be hinged, using revolute pair substitute prismatic pair, solve and cause to transport because sliding block is relative to sliding slot clamping stagnation The problems such as row is unstable, therefore the functional reliability of differential regulating mechanism provided herein is promoted.
The application also provides a kind of sewing machine, including cloth feeding mechanism 8, further includes being connected as described above with cloth feeding mechanism 8 Differential regulating mechanism.Because the functional reliability of differential regulating mechanism is higher, failure rate is low, and the non-productive work time shortens, effectively Working time increases, therefore its working efficiency is higher.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning Covering non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only that A little elements, but also include other elements that are not explicitly listed, or further include for this process, method, article or The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged Except there is also other identical elements in the process, method, article or apparatus that includes the element.
Sewing machine provided by the present invention and its differential regulating mechanism are described in detail above, it is used herein Principle and implementation of the present invention are described for specific case, and the explanation of above example is only intended to help to understand this The method and its core concept of invention;Meanwhile for those of ordinary skill in the art, according to the thought of the present invention, specific There will be changes in embodiment and application range, in conclusion the content of the present specification should not be construed as to the present invention's Limitation.

Claims (10)

1. a kind of differential regulating mechanism of sewing machine, including differential retainer (1), adjusting part (2) and differential shaft (5), feature It is, further includes:
Both ends are hingedly connected to the oscillating bar assembly (3) between the differential retainer (1) and the adjusting part (2);
Wobble drive bar (4) for being connected with cloth feeding mechanism (8);
It is passed through for the differential shaft (5) and respectively with the wobble drive bar (4) and the oscillating bar assembly (3) far from described differential The differential slide block assembly (6) that one end of retainer (1) is hinged.
2. differential regulating mechanism according to claim 1, which is characterized in that the differential slide block assembly (6) includes:
The differential sliding block (61) being hinged with the oscillating bar assembly (3);
Be installed on the differential shaft (5) and with across the differential sliding block (61) differential arc slide bar (621) and with institute State the differential frame (62) for the differential crank (622) that wobble drive bar (4) is hinged.
3. differential regulating mechanism according to claim 2, which is characterized in that the oscillating bar assembly (3) includes:
The first swing rod (31) being hinged below the differential shaft (5) and with the adjusting part (2);
Positioned at the outside of the differential shaft (5) and both ends it is separate with the differential sliding block (61) and first swing rod (31) respectively The second swing rod (32) that one end of the adjusting part (2) is hinged;
Above the differential shaft (5) and both ends are connected with the differential retainer (1) and second swing rod (32) respectively The third swing rod (33) that one end of the differential sliding block (61) is hinged.
4. differential regulating mechanism according to claim 3, which is characterized in that second swing rod (32) is close to described differential The side of axis (5) is equipped with the arc escape groove (321) for avoiding the differential shaft (5).
5. differential regulating mechanism according to claim 3, which is characterized in that further include:
Positioned at the lower section of the one end of the differential retainer (1) far from the third swing rod (33), for guiding the differential retainer (1) the differential guide pad (83) moved;
Crankshaft group (84) across the differential guide pad (83), for driving differential guide pad (83) movement.
6. differential regulating mechanism according to claim 5, which is characterized in that further include:
Synchronization steering slot (12) set on the one end of the differential retainer (1) far from the differential guide pad (83);
In the synchronization steering slot (12), for guiding the differential retainer (1) synchronous with the differential guide pad (83) The synchronization steering block (13) of movement.
7. differential regulating mechanism according to claim 3, which is characterized in that further include be set to the adjusting part (2) with The fixed plate (7) being connected between first swing rod (31) and with the differential shaft (5).
8. differential regulating mechanism according to claim 7, which is characterized in that the adjusting part (2) includes:
It is fixed on dial (21) of the fixed plate (7) far from the first swing rod (31) side;
The fixed plate (7) is articulated with far from the first swing rod (31) side and positioned at the dial (21) and the fixation Adjusting spanner (22) between plate (7);
It sequentially passes through the dial (21) and the adjusting spanner (22) and is detachably secured to the adjusting spanner (22) On adjusting fastener (23).
9. differential regulating mechanism according to claim 8, which is characterized in that further include:
One end is fixedly arranged on the adjusting spanner (22) and is articulated with described the close to one end of first swing rod (31) and the other end On one swing rod (31), pass through the fixed plate (7) and for connecting the adjusting spanner (22) and first swing rod (31) Adjust swing connecting bar (24).
10. a kind of sewing machine, including cloth feeding mechanism (8), which is characterized in that further include as described in any one of claim 1 to 9 The differential regulating mechanism being connected with the cloth feeding mechanism (8).
CN201810488284.1A 2018-05-21 2018-05-21 Sewing machine and differential adjusting mechanism thereof Active CN108589061B (en)

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Application Number Priority Date Filing Date Title
CN201810488284.1A CN108589061B (en) 2018-05-21 2018-05-21 Sewing machine and differential adjusting mechanism thereof

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CN108589061A true CN108589061A (en) 2018-09-28
CN108589061B CN108589061B (en) 2020-11-13

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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WO2021064582A1 (en) * 2019-10-01 2021-04-08 Vi.Be.Mac. S.P.A. Fabric advancement device for sewing machines
CN114990791A (en) * 2021-03-01 2022-09-02 杰克科技股份有限公司 Stepping differential and tooth adjusting mechanism of sewing machine

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CN109487446A (en) * 2018-12-17 2019-03-19 浙江翔科缝纫机股份有限公司 A kind of sewing machine
CN111485331A (en) * 2019-01-28 2020-08-04 浙江中捷缝纫科技有限公司 Differential adjusting mechanism and sewing machine with same
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CN114990791A (en) * 2021-03-01 2022-09-02 杰克科技股份有限公司 Stepping differential and tooth adjusting mechanism of sewing machine
CN114990791B (en) * 2021-03-01 2023-08-11 杰克科技股份有限公司 Step differential and tooth adjusting mechanism of sewing machine

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