CN201236268Y - Motor direct drive type under differential sewing machine - Google Patents

Motor direct drive type under differential sewing machine Download PDF

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Publication number
CN201236268Y
CN201236268Y CNU2008201512401U CN200820151240U CN201236268Y CN 201236268 Y CN201236268 Y CN 201236268Y CN U2008201512401 U CNU2008201512401 U CN U2008201512401U CN 200820151240 U CN200820151240 U CN 200820151240U CN 201236268 Y CN201236268 Y CN 201236268Y
Authority
CN
China
Prior art keywords
differential
crank
shaft
feed
cloth
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.)
Expired - Lifetime
Application number
CNU2008201512401U
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Chinese (zh)
Inventor
邓倩
罗一明
赵春花
王冰
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.)
Shanghai Huigong No3 Sewing Machine Factory China Standard Sewing Machine Co
Original Assignee
Shanghai Huigong No3 Sewing Machine Factory China Standard Sewing Machine Co
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 Shanghai Huigong No3 Sewing Machine Factory China Standard Sewing Machine Co filed Critical Shanghai Huigong No3 Sewing Machine Factory China Standard Sewing Machine Co
Priority to CNU2008201512401U priority Critical patent/CN201236268Y/en
Application granted granted Critical
Publication of CN201236268Y publication Critical patent/CN201236268Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a direct-drive structure of an electromotor direct-drive type lower differential sewing machine and a lower differential regulating mechanism thereof. For the electromotor direct-drive type lower differential sewing machine, a direct-drive electromotor (5) is transmitted into a feed lifting rock shaft (43) through a belt, a rod-shaped retainer (37) and one end of a differential retainer (32) are sleeved on the feed lifting rock shaft (43), and the other ends of the rod-shaped retainer (37) and the differential retainer (32) are sleeved on a cloth feeding shaft (26) and a differential cloth feeding shaft (19) that are coaxial inside and outside and are capable of mutually rotating through a retainer crank (27) and a differential retainer crank (29); the regulation angles of a cloth feeding regulating shaft (14) and a differential cloth feeding regulating shaft (17) are respectively controlled through an angle between a regulating crank (15) and a differential crank (16) which are fixed on the cloth feeding regulating shaft (14) and the differential cloth feeding regulating shaft (17), and then the angle regulation of the cloth feeding regulating shaft (14) and the differential cloth feeding regulating shaft (17) can be realized through the stroke regulation of a stitch-length regulating swing link (50) and a differential regulating screw rod (11). The utility model has the advantages of compact structure, smaller volume, luculent action transfer, reliability, less faults and convenient maintenance and is suitable for being arranged inside the electromotor direct-drive type lower differential sewing machine.

Description

Motor-direct-drive type lower moves Sewing machines
(1) technical field
The utility model relates to a kind of Sewing machines, and the direct-drive type structure of the moving Sewing machines of particularly a kind of motor-direct-drive type lower reaches differential governor motion down.
(2) background technology
As everyone knows, though the quantity that the differential type Sewing machines is used in the Sewing machines industry is not very many, because of its effect uniqueness still can not lack suddenly.
The differential type Sewing machines divides upward differential or differential down, its operation principle is, rotate in the process of operation at Sewing machines, one of above or below the needlework pressing plate, divide two actions at work feed forward, wherein one fast one is slow, caused the effect of pleating wrinkle, this processing mode mainly is the decoration place, part that is used in clothes, locates as the shirtfront of skirt, the bottom of clothes etc.
Specifically, the last differential attachment of differential Sewing machines mainly comprises the work feed presser feet of a range-adjustable, and when the stroke adjustment of presser feet was consistent with the feed dog stroke, sewing efficiency was smooth sewing, when the adjustment of presser feet stroke is inconsistent with feed dog, just reached the effect of pleating wrinkle sewing; The following differential sewing mechanism of differential Sewing machines mainly comprises the feed dog of two self-movements, when the stroke of two feed dogs is adjusted into unanimity, sewing efficiency is smooth sewing, adjusts when inconsistent when two feed dog strokes, has just reached the effect of pleating wrinkle sewing.In sewing, exempt the trouble that the sewing person must send and draw the work feed material with hand push, the person that makes the sewing need not learn to send and draw with hand push the operation skill of work feed material, does not also need to possess abundant sewing experience, just can carry out the operation of pleating wrinkle sewing easily.
The differential type Sewing machines since its consumption on market few, so its improvement, the improvement also wait a moment relatively less.As type of drive, artificial for a long time pin is stepped on and is provided, and changes into gradually thereafter by outboard motor rotating, and the driving wheel by belt drive differential type Sewing machines has improved operating rate and efficient.
Raising along with people's living standard, enriching of apparel design, the development of sewing industry, market has had new improvement requirement again to the differential type Sewing machines, does not wish large-scale drive motors is configured in the outside, and it is big to take volume, belt transmits easily loosening being out of order, inconvenience is moved in carrying, and wishes a kind of compact conformation can be provided, and drives the type that power directly is configured in head of sewing machine.And the relative clutch motor power saving of direct driving motor is about about 50%, directly drives and has reduced the loss in the transmission process.
Existing down differential Sewing machines is general to adopt the electronic motor that is installed in platen under or clutch motor as power source, and adopts oil pump feed to lubricate.Described mechanism is bulky, uses electronic motor or clutch motor, can exist power consumption to produce the problem that cost improves greatly, adopts oil pump feed lubricated, though reduced friction, can bring the phenomenon of leakage of oil, thereby makes product quality decline; In this case, in order to put forward product quality, and it is energy-saving and cost-reducing, if adopt direct-drive motor and adopt little oil tech, to effectively solve the above problems, but huge transmission mechanism can't dispose on the moving Sewing machines of direct-drive type lower, at present, does not still have differential Sewing machines under the little oil of suitable direct-drive type on the market.
In order to address the above problem, must effectively to integrate improvement to differential feed adjustment structure and normal feed mechanism, thereby realize being fit to be applied under the little oil of direct-drive type on the differential flat seam machine.
(3) utility model content
The purpose of this utility model is that a kind of differential type mechanism on the differential flat seam machine under the little oil of direct-drive type that is fit to be applied to will be provided.
The purpose of this utility model is realized by following structure.
Motor-direct-drive type lower moves Sewing machines, comprises direct driving motor 5, it is characterized in that:
Described direct driving motor 5 is given feed lifting rock shaft 43 by belt 3 transmissions, fixedly connected feed eccentric 44 and be nested with work feed connecting rod 45 on the feed lifting rock shaft 43;
Be a shaft-like retainer 37 and an end of differential retainer 32 and be socketed on the feed lifting rock shaft 43, both other ends are socketed in inside and outside concentric by crank of tooth frame 27 and differential crank of tooth frame 29 respectively, on mutual rotating cloth pushing shaft 26 and the differential cloth-feeding axle 19;
45 swings of feed eccentric 44 and work feed connecting rod are connected the differential cloth-feeding axle crank right side 22 that is nested with on the cloth pushing shaft crank right side 24 that is nested with on the cloth pushing shaft 26 and the differential cloth-feeding axle 19;
The pendulum angle on the cloth pushing shaft crank right 24 and the differential cloth-feeding axle crank right side 22 is by inside and outside concentric, and mutual rotating work feed regulating shaft 14 and differential cloth-feeding regulating shaft 17 are placed restrictions on;
The adjusting angle of work feed regulating shaft 14 and differential cloth-feeding regulating shaft 17 is respectively by the angle control of 16 on adjusting crank fixed thereon right 15 and differential crank, and the stroke adjustment of regulating fork 50 and differential adjusting screw(rod) 11 by needle gage realizes then.
Described belt 3 is a synchronous belt.
Adopt the utility model, drive lower shaft by direct driving motor through the synchronous belt transferring power, the rotation of the feed eccentric 44 on the lower shaft divides two-way, the work feed connecting rod 45 of leading up to drives crank long connecting rod 23,21 sustained oscillations of crank short connecting rod, thereby makes the cloth pushing shaft crank right side 24 with a certain amplitude sustained oscillation.Another road drives crank long connecting rod 23,21 sustained oscillations of crank short connecting rod by work feed connecting rod 45, this also makes the differential cloth-feeding axle crank right side 22 with the different amplitude sustained oscillation of a certain and cloth pushing shaft crank right 24, and finally the stroke adjustment of regulating fork 50 and differential adjusting screw(rod) 11 by needle gage realizes retainer 37 and differential retainer 32 reciprocally swinging angles.
The beneficial effects of the utility model find expression in: the technical program compact conformation, volume is less, and the suitable motor-direct-drive type lower that is configured in moves Sewing machines inside, and the motion of feed dog is to be finished by two cover transmission mechanisms, action is transmitted distinct, reliably, fault is few, and maintaining is convenient, and made full use of the traditional workpiece of prior art, only part has carried out increasing configuration, and improvement cost is low, is easy to apply.
(4) description of drawings
Fig. 1 is the profile and the partial sectional view of the moving Sewing machines of the utility model motor-direct-drive type lower;
Fig. 2 is the following differential feed structural representation of Sewing machines described in the utility model;
Fig. 3 is the expansion schematic diagram of the following differential feed structure of Sewing machines described in the utility model.
Among the figure,
1. go up 3. belts on axle 2. synchronous pulleys
4. take turns on shaft coupling 5. direct driving motors 6.
7. following differential pointer 8. spanners 9. spanner springs
10. extension spring frame 11. differential adjusting screw(rod) 12. differential feed cranks
13. needle gage connecting rod 14. work feed regulating shafts 15. are regulated the crank right side
16. differential crank 17. differential cloth-feeding regulating shafts 18. crank connecting links
19. differential cloth-feeding axle 20. needle gages are regulated crank 21. crank short connecting rods
22. the right 23. crank long connecting rods of the differential cloth-feeding axle crank 24. cloth pushing shaft crank right sides
25. differential connecting rod 26. cloth pushing shafts 27. crank of tooth frame
28. crank of tooth frame eccentric shaft 29. differential crank of tooth frame 30. differential crank of tooth frame eccentric shafts
31. feed lifting rock shaft crank 32. differential retainer 33. eccentric shafts
34. differential retainer pin 35. differential feed lifting rock shaft crank connecting rod 36. feed lifting rock shaft crank connecting rods
37. retainer 38. retainer pins 39. tooth lifting cam connecting rods
40. feed lifting rock shaft crank minor axis 41. feed dogs 42. differential cloth-feeding teeth
43. feed lifting rock shaft 44. feed eccentrics 45. work feed connecting rods
46. regulate under 47. differential adjusting crank 48. synchronous pulleys of a crank left side
49. differential needle gage connecting rod 50. needle gages are regulated fork 51. tooth lifting cams
52. differential pin
(5) specific implementation method
Further describe structure of the present utility model below in conjunction with accompanying drawing.
As shown be the structural representation of differential feed under the Sewing machines described in the utility model, when the needle gage adjusting screw(rod) was adjusted at a certain position, needle gage was regulated fork 50 and is fixed on a certain position.The swing that needle gage is regulated fork 50 makes the adjusting crank right side 15 swing to a certain angle by needle gage connecting rod 13.All be fixed on the work feed regulating shaft 14 with regulating the crank right side 15 because of regulating a crank left side 46,, also swing to a certain position so regulate a crank left side 46 with the swing of regulating the crank right side 15.Regulate a crank left side 46 and drive crank connecting link 18 swings again, crank connecting link 18 makes needle gage regulate crank 20 around a spot wobble again.The swing of regulating crank 20 drives the cloth pushing shaft crank right side 24 and swings to a certain position by crank short connecting rod 21, crank long connecting rod 23.
Direct driving motor 5 is passed to axle 1 to torque by shaft coupling 4, and last axle 1 drives 2 rotations on the synchronous pulley, by belt 3, makes 48 rotations under the synchronous pulley.48 rotation makes feed eccentric 44 rotations by the rotation of feed lifting rock shaft 43 again under the synchronous pulley, the rotation of feed eccentric 44 drives crank long connecting rod 23,21 sustained oscillations of crank short connecting rod by work feed connecting rod 45, thereby makes the cloth pushing shaft crank right side 24 with a certain amplitude sustained oscillation.
The cloth pushing shaft crank right side 24 is clamped on the cloth pushing shaft 26, the swing on the cloth pushing shaft crank right side 24 makes crank of tooth frame 27 sustained oscillations that are clamped on the cloth pushing shaft 26 by cloth pushing shaft 26, the swing of crank of tooth frame 27 drives retainer 37 swings by crank of tooth frame eccentric shaft 28, makes the feed dog 41 that is fixed on the retainer 37 with certain amplitude sustained oscillation feeding.
48 rotation is again by feed lifting rock shaft 43 under the synchronous pulley, make tooth lifting cam 51 rotations, the rotation of tooth lifting cam 51 moves up and down tooth lifting cam connecting rod 39, tooth lifting cam connecting rod 39 move through feed lifting rock shaft crank connecting rod 36, pass to retainer 37 moving up and down, thereby make the feed dog 41 that is fixed on the retainer 37 continue to lift up and down tooth.
Rotate differential adjusting screw(rod) 11, make down differential pointer 7 swing to a certain position, be clamped in down the also and then swing of differential feed crank 12 on the differential pointer 7.Differential feed crank 12 drives differential crank 16 swings, differential crank 16 all is fixed on the differential cloth-feeding regulating shaft 17 with differential adjusting crank 47, the swing of differential crank 16 makes differential connecting rod 25 move forward and backward a certain position by the swing of differential adjusting crank 47, and the mobile of differential connecting rod 25 changes the position differential pin 52 thereupon in the groove on the differential cloth-feeding axle crank right side 22.
As previously mentioned, the rotation of feed eccentric 44 drives crank long connecting rods 23,21 sustained oscillations of crank short connecting rod by work feed connecting rod 45, and this also makes the differential cloth-feeding axle crank right side 22 with the different amplitude sustained oscillation in a certain and the cloth pushing shaft crank right side 24.
When right 22 swings of differential cloth pushing shaft crank, drive 19 swings of differential cloth-feeding axle, thereby drive differential crank of tooth frame 29 swings, make differential retainer 32 and the differential cloth-feeding tooth 42 fixed on it can be with a certain amplitude sustained oscillation feeding different with feed dog 41.
As previously mentioned, 48 rotation is again by feed lifting rock shaft 43 under the synchronous pulley, make tooth lifting cam 51 rotations, the rotation of tooth lifting cam 51 moves up and down tooth lifting cam connecting rod 39, tooth lifting cam connecting rod 39 move through differential feed lifting rock shaft crank connecting rod 35, pass to differential retainer 32 moving up and down, thereby make the feed dog 42 that is fixed on the differential retainer 32 continue to lift up and down tooth.

Claims (2)

1. the moving Sewing machines of motor-direct-drive type lower comprises direct driving motor (5), it is characterized in that:
Described direct driving motor (5) is given feed lifting rock shaft (43) by belt (3) transmission, and feed lifting rock shaft (43) is gone up fixedly connected feed eccentric (44) and is nested with work feed connecting rod (45);
Being a shaft-like retainer (37) and an end of differential retainer (32) is socketed on the feed lifting rock shaft (43), both other ends are socketed in inside and outside concentric by crank of tooth frame (27) and differential crank of tooth frame (29) respectively, on mutual rotating cloth pushing shaft (26) and the differential cloth-feeding axle (19);
The swing of feed eccentric (44) and work feed connecting rod (45) is connected the differential cloth-feeding axle crank right side (22) that is nested with on the cloth pushing shaft crank right side (24) that is nested with on the cloth pushing shaft (26) and the differential cloth-feeding axle (19);
The pendulum angle on the cloth pushing shaft crank right side (24) and the differential cloth-feeding axle crank right side (22) is by inside and outside concentric, and mutual rotating work feed regulating shaft (14) and differential cloth-feeding regulating shaft (17) are placed restrictions on;
By the adjusting crank right side (15) fixed thereon and the control of the angle between differential crank (16), the stroke adjustment by needle gage adjusting fork (50) and differential adjusting screw(rod) (11) realizes the adjusting angle of work feed regulating shaft (14) and differential cloth-feeding regulating shaft (17) then respectively.
2. according to the moving Sewing machines of the described motor-direct-drive type lower of claim 1, it is characterized in that described belt (3) is a synchronous belt.
CNU2008201512401U 2008-07-25 2008-07-25 Motor direct drive type under differential sewing machine Expired - Lifetime CN201236268Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008201512401U CN201236268Y (en) 2008-07-25 2008-07-25 Motor direct drive type under differential sewing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008201512401U CN201236268Y (en) 2008-07-25 2008-07-25 Motor direct drive type under differential sewing machine

Publications (1)

Publication Number Publication Date
CN201236268Y true CN201236268Y (en) 2009-05-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008201512401U Expired - Lifetime CN201236268Y (en) 2008-07-25 2008-07-25 Motor direct drive type under differential sewing machine

Country Status (1)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101634085B (en) * 2008-07-25 2012-05-23 中国标准缝纫机公司上海惠工缝纫机三厂 Differential mechanism of motor-direct-drive type lower differential sewing machine
CN104727026A (en) * 2015-03-17 2015-06-24 蔡金财 Adjustable lower differential feed mechanism of industrial sewing machine and differential adjustment method of adjustable lower differential feed mechanism
TWI506173B (en) * 2014-01-10 2015-11-01 Chee Siang Ind Co Ltd Sewing machine differential feeding device
CN112726031A (en) * 2019-07-03 2021-04-30 莆田城厢晟铭网络有限公司 Textile flat sewing machine and method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101634085B (en) * 2008-07-25 2012-05-23 中国标准缝纫机公司上海惠工缝纫机三厂 Differential mechanism of motor-direct-drive type lower differential sewing machine
TWI506173B (en) * 2014-01-10 2015-11-01 Chee Siang Ind Co Ltd Sewing machine differential feeding device
CN104727026A (en) * 2015-03-17 2015-06-24 蔡金财 Adjustable lower differential feed mechanism of industrial sewing machine and differential adjustment method of adjustable lower differential feed mechanism
CN112726031A (en) * 2019-07-03 2021-04-30 莆田城厢晟铭网络有限公司 Textile flat sewing machine and method

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20090513

Effective date of abandoning: 20080725