CN200964496Y - Sewing machine needle bar mechanisms - Google Patents

Sewing machine needle bar mechanisms Download PDF

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Publication number
CN200964496Y
CN200964496Y CN 200620047361 CN200620047361U CN200964496Y CN 200964496 Y CN200964496 Y CN 200964496Y CN 200620047361 CN200620047361 CN 200620047361 CN 200620047361 U CN200620047361 U CN 200620047361U CN 200964496 Y CN200964496 Y CN 200964496Y
Authority
CN
China
Prior art keywords
bar
shank
fork
needling
needle
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 - Fee Related
Application number
CN 200620047361
Other languages
Chinese (zh)
Inventor
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 CN 200620047361 priority Critical patent/CN200964496Y/en
Application granted granted Critical
Publication of CN200964496Y publication Critical patent/CN200964496Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A material needling mechanism of the sewing machine which is characterized in that: the material needling mechanism consists of a needling bar cam subassembly A and a swing bar subassembly B; wherein, the needling bar cam subassembly A consists of an upper shaft which is connected with the mainframe driving device and the needling bar cam which is sleeved with the shaft bar, and the wheel cycle of the needling bar cam is provided with trajectory grooves. The swing bar subassembly B comprises a needling bar, a swing bar and a fixed seat. The lower end of the needling bar has a machine needle and the upper end is connected with one end of the small bar through a connection pin and a kinsada screw. The body of the needling bar is sleeved with in series and fixed with a needling bar joint subassembly, which is connected with the machine body through a sliding block guide track. The other end of the small connecting rod has a swing bar which is pin-connected with the small connecting rod, and the other end of the swing bar is fixed in the seat hole of the fixed seat through a swing bar rotary shaft. The out-extending end of the swing bar rotary shaft is provided with, in the form of suspension sleeve, a needling bar swing bar which extends outward, and the lower part of the needling bar swing bar has a roller which extends in the horizontal direction. The roller is embedded in the trajectory grooves on the wheel cycle of the needling car cam which constitutes the needling bar cam subassembly A.

Description

A kind of needle bar mechanism of Sewing machines
Technical field
The utility model relates to a kind of needle bar mechanism of Sewing machines assembly, particularly a kind of Sewing machines.
Background technology
Tradition Sewing machines thorn material structure sees also Fig. 2, and it is the three-dimensional exploded view of traditional Sewing machines needle bar mechanism.Its syndeton is: utilize dog screw 14 and holding screw 2 that needle bar crank 24 is fixed in axle 16, utilize dog screw 14 and holding screw 2 that connecting pin 3 is fixed in needle bar crank 24, shank connecting rod 23 is enclosed within on the connecting pin 3, shank joint 17 is inserted in shank 1, shank 1 can only move up and down in casing, then shank joint 17 is penetrated in shank connecting rod 23 and the slide block 19, slide block 19 can only slide up and down in the slide block guide rail 20 that is fixed in casing, eedle eedle screw 6 is screwed into shank 1, the eedle 21 eedle chuck of packing into, tighten with eedle eedle screw 6, tighten shank chuck eedle screw 6 at last.
The implementation procedure of above-mentioned traditional Sewing machines thorn material function is: go up axle 16 rotations, drive needle bar crank 24 rotations, and then drive shank connecting rod 23 is done plane motion, shank connecting rod 23 drives shank 1 and pumps, the eedle 21 that is cemented on the shank 1 by eedle chuck and eedle eedle screw 6 pumps equally, thereby has realized thorn material process.
The needle bar mechanism of above-mentioned traditional Sewing machines is typical slider-crank mechanism, sees also Fig. 2, is characterized in that stroke fixes.Shortcoming is that the shank movement locus is simple, can not realize complicated movement locus.
The utility model content
In order to overcome the problem that exists in the above-mentioned technology, needle bar mechanism is redesigned, the purpose of this utility model provides a kind of novel needle bar mechanism of Sewing machines, can realize complicated thorn material movement locus
The needle bar mechanism of this Sewing machines, it is characterized in that: described needle bar mechanism is made of with fork sub-assembly B needle-bar cam sub-assembly A: wherein said needle-bar cam sub-assembly A by link to each other with Sewing machines host driven device go up axle 16 and be placed on the axostylus axostyle, constitute by holding screw 2, dog screw 14 fixing needle-bar cams 15, and take turns at described needle-bar cam 15 and to be provided with track guide groove 22 on week; Described fork sub-assembly B is made up of shank 1, fork 5, shank fork 7 and holder 10; The lower end of described shank 1 is equipped with its upper end of eedle 21 through connecting pin 3 and holding screw 2 ' is connected with little 4 one ends of bar repeatedly, and goes here and there on the body of rod of described shank 1 and overlap and fixing the shank adapter assembly that is connected with fuselage through slide block guide rail 20; In addition, the other end of described small rod 4 be equipped with one with the fork 5 of its pin joint, the other end of this fork 5 is by in the seat hole of a fork rotating shaft 8 with its tandem arrangement holder 10; The outstanding shell-like of one overhanging end of described fork rotating shaft 8 is being provided with the shank fork 7 that extends downwards, the lower end of this shank fork 7 is being provided with a level to the roller 13 that stretches out, and 13 of this rollers embed the needle-bar cam 15 of forming needle-bar cam sub-assembly A and take turns in the track guide groove 22 on week.
Described shank adapter assembly is made up of shank joint 17, packing ring 18, slide block 19 and slide block guide rail 20, wherein said shank is picked coal 17 and is placed on the shank 1, and it is fixing by eedle screw 6, the other end of described shank joint 17 is connected with the slide block 19 that places slide block guide rail 20, and by screw slide block guide rail 20 is connected with fuselage.
The beneficial effects of the utility model are traditional crank block needle bar mechanism is changed into cam-connecting rod assembly needle bar mechanism, have strengthened the complexity of shank movement locus, and sewing quality has satisfied the demand of some special Sewing machines.
Description of drawings
Fig. 1 is the three-dimensional exploded view of the utility model Sewing machines needle bar mechanism;
Fig. 2 is the three-dimensional exploded view of traditional Sewing machines needle bar mechanism.
Among the figure: 1, shank 2,2 ' holding screw 3, connecting pin 4, small rod 5, fork 6, eedle screw 7, shank fork 8, fork rotating shaft 9, axle sleeve 10, holder 11, mother hexagonal sieve 12, axial screw 13, roller 14, dog screw 15, needle-bar cam 16, last axle 17, shank joint 18, packing ring 19, slide block 20, slide block guide rail 21, eedle 22, track guide groove 23, shank connecting rod 24, needle bar crank
The specific embodiment
Needle bar mechanism below in conjunction with description of drawings the utility model Sewing machines.
Consulting Fig. 1 further specifies as follows to structure of the present utility model and mechanism driving:
Utilize dog screw 14 needle-bar cam 15 to be linked to each other with last axle 16 with holding screw 2.Shank 1 and small rod 4, shank fork 5 press Fig. 1 polyphone, wherein is connected by connecting pin 3 between shank 1 and the small rod 4, and with two holding screws 2 ' prop up tightly, small rod 4 be connected by connecting pin 3 with shank fork 5, and with 2 of holding screws tightly.Shank 1 is penetrated in the hole of shank joint 17, packing ring 18 is enclosed within on the shank joint 17, slide block 19 is slided up and down in slide block guide rail 20, slide block guide rail 20 is fixed on the casing by two screws 6 and (is not drawn among the figure), shank joint 17 is through on the slide block 19, to guarantee that shank 1 can only move up and down, can not left-right rotation.Then shank fork 7 is enclosed within the fork rotating shaft 8, two axle sleeves 9 regulating usefulness are used for fixing the axial location of shank fork 7 on fork rotating shaft 8, with holding screw 3 shank fork 5 are fixed on above the fork rotating shaft 8.Axial screw 12 is installed in shank fork 7 lower ends, prevent its axial float with hex nut 11 and mandrel position screw 12, and with holding screw a 2 ' mandrel position screw 12, prevent that its circumferencial direction from rotating, again roller 13 is installed on the axial screw 12, then screw 6 is screwed into axial screw 12, it is axially movable spacing to give roller 13.After adjusting the position of shank 1, shank joint 17 is connected on the shank 1, shank fork 7 is fixed in the fork rotating shaft 8 with screw 6 with screw 6.In addition, the other end of described small rod 4 be equipped with one with the fork 5 of its pin joint, the other end of this fork 5 is by in the seat hole of a fork rotating shaft 8 with its tandem arrangement holder 10; The outstanding shell-like of one overhanging end of described fork rotating shaft 8 is being provided with the shank fork 7 that extends downwards, the lower end of this shank fork 7 is being provided with a level to the roller 13 that stretches out, and 13 of this rollers embed the needle-bar cam 15 of forming needle-bar cam sub-assembly A and take turns in the track guide groove 22 on week.
Described shank adapter assembly is made up of shank joint 17, packing ring 18, slide block 19 and slide block guide rail 20, wherein said shank is picked coal 17 and is placed on the shank 1, and it is fixing by eedle screw 6, the other end of described shank joint 17 is connected with the slide block 19 that places slide block guide rail 20, and by screw slide block guide rail 20 is connected with fuselage.
Its implementation procedure is: when last axle 1 rotates, affixed needle-bar cam 15 thereon is rotation synchronously also, drive shank fork 7 according to track groove 22 reciprocally swingings on the needle-bar cam 15, be subjected to the swing effect, also drive the swing of shank fork 5, by the connection campaign of small rod 4, just realized that sewing machine needle bar pumps.

Claims (2)

1, a kind of perverse material mechanism of Sewing machines, it is characterized in that: described needle bar mechanism is made of with fork sub-assembly B needle-bar cam sub-assembly A: wherein said needle-bar cam sub-assembly A is made of going up axle (16) and being placed in needle-bar cam (15) on the axostylus axostyle, that fixed by holding screw (2), dog screw (14) of linking to each other with Sewing machines host driven device, and is provided with track groove (22) at described needle-bar cam (15) on wheel week; Described fork sub-assembly B is made up of shank (1), fork (5), shank fork (7) and holder (10); The lower end of described shank (1) is equipped with its upper end of eedle (21) and is connected with little (4) one ends of bar repeatedly with holding screw (2 ') through connecting pin (3), and go here and there to overlap on the body of rod of described shank (1) and fixing the shank adapter assembly that is connected with fuselage through slide block guide rail (20); In addition, the other end of described small rod (4) be equipped with one with the fork (5) of its pin joint, the other end of this fork (5) is by in the seat hole of a fork rotating shaft (8) with its tandem arrangement holder (10); The outstanding shell-like of one overhanging end of described fork rotating shaft (8) is being provided with the shank fork (7) that extends downwards, the lower end of this shank fork (7) is being provided with a level to the roller that stretches out (13), and this roller (13) then embeds in the track groove (22) of needle-bar cam (15) on wheel week of forming needle-bar cam sub-assembly A.
2, the needle bar mechanism of a kind of Sewing machines as claimed in claim 1, it is characterized in that: described shank adapter assembly is made up of shank joint (17), packing ring (18), slide block (19) and slide block guide rail (20), wherein said shank is picked coal (17) and is placed on the shank (1), and it is fixing by screw (6), the other end of described shank joint (17) is connected with the slide block that places slide block guide rail (20) (19), and by screw slide block guide rail (20) is connected with fuselage.
CN 200620047361 2006-10-31 2006-10-31 Sewing machine needle bar mechanisms Expired - Fee Related CN200964496Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620047361 CN200964496Y (en) 2006-10-31 2006-10-31 Sewing machine needle bar mechanisms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620047361 CN200964496Y (en) 2006-10-31 2006-10-31 Sewing machine needle bar mechanisms

Publications (1)

Publication Number Publication Date
CN200964496Y true CN200964496Y (en) 2007-10-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200620047361 Expired - Fee Related CN200964496Y (en) 2006-10-31 2006-10-31 Sewing machine needle bar mechanisms

Country Status (1)

Country Link
CN (1) CN200964496Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102454069A (en) * 2010-10-29 2012-05-16 吴江东益纺织有限公司 Stitch driving device of dial linking machine
CN103243494A (en) * 2013-05-28 2013-08-14 江苏大岛机械集团有限公司 High-speed single needle bar drive head
CN104736756A (en) * 2012-08-29 2015-06-24 Nsd株式会社 Needle bar and sewing machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102454069A (en) * 2010-10-29 2012-05-16 吴江东益纺织有限公司 Stitch driving device of dial linking machine
CN104736756A (en) * 2012-08-29 2015-06-24 Nsd株式会社 Needle bar and sewing machine
CN104736756B (en) * 2012-08-29 2016-04-20 Nsd株式会社 Shank and Sewing machines
CN103243494A (en) * 2013-05-28 2013-08-14 江苏大岛机械集团有限公司 High-speed single needle bar drive head

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20071024

Termination date: 20101031