CN201395697Y - Sewing machine with needle bar lifting mechanism - Google Patents

Sewing machine with needle bar lifting mechanism Download PDF

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Publication number
CN201395697Y
CN201395697Y CN2009200525076U CN200920052507U CN201395697Y CN 201395697 Y CN201395697 Y CN 201395697Y CN 2009200525076 U CN2009200525076 U CN 2009200525076U CN 200920052507 U CN200920052507 U CN 200920052507U CN 201395697 Y CN201395697 Y CN 201395697Y
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CN
China
Prior art keywords
clutch
shank
bar
pull bar
bayonet lock
Prior art date
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Expired - Fee Related
Application number
CN2009200525076U
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Chinese (zh)
Inventor
李锦洪
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Individual
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Individual
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Publication date
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Priority to CN2009200525076U priority Critical patent/CN201395697Y/en
Application granted granted Critical
Publication of CN201395697Y publication Critical patent/CN201395697Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model belongs to an auxiliary device for a sewing machine, more particularly relates to a sewing machine with a needle bar lifting mechanism, which is suitable for sewing thick material. The objective of the utility model is to provide a mechanism capable of effectively lifting a needle bar by a long distance, which comprises a sewing machine head, a transmission component, a pull barand the needle bar, wherein, the pull bar and the needle bar are mounted within a casing of the sewing machine head; the utility model is characterized by including the needle bar lifting mechanism, an upper clutch (2) is arranged between the pull bar (9) and the needle bar (19), and a needle bar clutch (13) is arranged between the needle bar and a needle bar crank connecting link mechanism, and alinkage curved bar (11) is arranged between the upper clutch and the needle bar clutch. The sewing machine can lift the needle bar effectively and fast by some distances, guarantees higher power transmission efficiency and is capable of sewing and processing thick articles like cotton material.

Description

A kind of Sewing machines that the shank hoisting mechanism is arranged
Technical field:
The utility model belongs to the Sewing machines servicing unit, and what be specifically related to is a kind of Sewing machines that the shank hoisting mechanism is arranged, and is suitable for stitching thick material and uses.
Background technology:
Existing sewing machine is made thin material usually, if will be used to make thick material, and the essential Sewing machines of adjusting, its method is the distance that adopts between whole lifting head of sewing machine and the frame.Because need the head of whole lifting Sewing machines, it constructs more complicated, thereby makes that lifting head required time is longer, because the body of head and Sewing machines disconnects, reduced the efficiency of transmission of active force again.
Summary of the invention:
The purpose of this utility model provides a kind of defective that can restrain existing clothes Sewing machines, can be effectively greatly apart from the mechanism of lifting shank, thereby can make thicker objects such as cotton material.
A kind of Sewing machines that the shank hoisting mechanism is arranged, comprise head of sewing machine, drive disk assembly, pull bar and shank, pull bar and shank are installed in the head shell, it is characterized in that being provided with between pull bar and the shank on one and be provided with a shank clutch between the clutch and shank and needle bar crank linkage, described going up between clutch and the shank clutch is provided with the interlock curved bar.
Described interlock curved bar is connected with a fixed block pin joint, and an end of interlock curved bar connects a spring, and an end of interlock curved bar is aimed at an Isolating Switch that is provided with on the shank clutch, is used to control the keying of shank clutch; The interlock groove that is provided with on the other end of interlock curved bar and the pull bar is connected; Described pull bar is located in the clutch, and pull bar upper end corresponding on the position of clutch be provided with a groove, groove is used to control the keying of clutch.
Described shank clutch comprises a shank clutch bayonet lock and a clutch curved bar, Isolating Switch on the described clutch is the clutch curved bar, described shank clutch bayonet lock is terminal to be connected with clutch curved bar pin joint, and an end of clutch curved bar is connected with a back-moving spring; Described go up is provided with on one clutch trip on the clutch bayonet lock and in the clutch, the described clutch bayonet lock of going up is connected with last clutch trip pin joint, and last clutch bayonet lock is pushed to shank by last clutch reset spring.The described clutch trip of going up is corresponding to the pull bar groove location, in order to control the keying of clutch.
Described pull bar is provided with locating piece, and housing is provided with locating slot accordingly, also is provided with fixed block on the housing.
Described shank is connected in the housing by a cover and a needle bar lower bushing on the shank.
Fixedlying connected by overlap on a spring catch and the pull bar in described pull bar upper end, overlaps on the described pull bar to be connected with the cylinder jointing pin joint, is provided with one between described spring catch and the last clutch and compresses spring.
Adopt the utility model directly to drive at the servomotor that does not change former Sewing machines under the prerequisite of structure, guarantee higher power transfer efficiency.The mode lifting shank height that adopts cylinder to drive, shank lifting speed is fast, has guaranteed sewing efficiency.Can fast lifting and effectively can be greatly apart from the lifting shank, to the processing of making of thicker objects such as cotton material.
Description of drawings:
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model A-A generalized section.
Fig. 3 is the utility model propradation schematic diagram.
Fig. 4 rises to the peak schematic diagram for the utility model.
Fig. 5 drops to the minimum point schematic diagram for the utility model.
The specific embodiment:
Extremely shown in Figure 5 as Fig. 1, a kind of Sewing machines that the shank hoisting mechanism is arranged, comprise head of sewing machine, drive disk assembly, pull bar and shank, pull bar and shank are installed in the head shell, described hoisting mechanism comprises a pull bar 9 and a shank 19 that is set in the housing 1, shank 19 lower ends connect sewing needle 23 by connecting portion 22, pull bar 9 upper ends are connected with cylinder jointing 4, the drive pull bar that moves up and down of cylinder jointing moves up and down, be provided with clutch 2 between described pull bar 9 and the shank 19, joint by last clutch, pull bar can drive shank and move up and down, be provided with a shank clutch 13 between described shank 19 and the machine tool toggle, described going up is provided with interlock curved bar 11 between clutch and the shank clutch.The interlock curved bar is used for can controlling the keying of shank clutch when shank moves up and down.
One end of described interlock curved bar 11 connects a spring 24, and an other end of spring 24 is connected the appropriate location of curved bar holder, and an end of interlock curved bar 11 is aimed at an Isolating Switch that is provided with on the shank clutch 13, is used to control the keying of shank clutch; The interlock groove 30 that is provided with on an other end of interlock curved bar and the pull bar is connected; Described pull bar 9 is located in the clutch 2, and pull bar upper end corresponding on the position of clutch be provided with a groove 3, groove is used to control the keying of clutch.
Described shank clutch comprises a shank clutch bayonet lock 15 and a spring (not shown), the Isolating Switch of described shank clutch is a bayonet lock curved bar 14, described bayonet lock 15 1 ends are connected with bayonet lock curved bar 14 pin joints, and the other end of bayonet lock curved bar 14 is connected with a back-moving spring 18; Described go up is provided with on one clutch trip on the clutch bayonet lock 27 and in the clutch, last clutch bayonet lock 27 is fixedlyed connected with last clutch trip 24, and last clutch bayonet lock 27 can be pushed to shank by last clutch reset spring.
Described pull bar is provided with locating piece 7, and housing is provided with locating slot 8 accordingly.Locating piece 7 and locating slot 8 are used for fixing pull bar 9 descending degree of depth in housing.Also be provided with fixed block 10 on the housing 1.Fixed block 10 is used for fixing the position of pull bar 9 in housing.
Described shank is connected in the housing by cover 20 and one needle bar lower bushing 21 on the shank.Described pull bar 9 upper ends are connected with cylinder jointing 4 pin joints by cover on the pull bar 5, are provided with between described spring catch and the last clutch and compress spring 6.
When shank moves upward, because the effect of compression spring 18.Make that going up clutch components still is in actionless state.Afterwards, shank continues upwards pulling, making interlock groove 30 promote interlock curved bar 11 clockwise rotates, interlock curved bar 11 drives accurate shank clutch 13 motions, make the last clutch bayonet lock 15 in the shank clutch 13 become released state with shank 19, shank continues to move upward, in the time of in groove 3 enters clutch 2, last clutch bayonet locks 27 in the last clutch 2 become closure state with shank 19 under the effect of back-moving spring 26, thereby continuing to move upward at shank drives shank 19 simultaneously and move upward.Move to predetermined peak up to pull bar.This moment, shank was lifted to the extreme higher position.
When the cylinder action bar moved downward, cover 5 and pull bar 9 moved downward on the cylinder jointing 4 drive shanks.Under the pressure effect of compression spring 6, last clutch components drives the shank parts and moves downward together.Following clutch touches the head top, following clutch components and the stop motion of shank parts, and pull bar continues to move downward, compression spring 26 begins to be compressed.Last clutch bayonet lock 27 is driven by pull bar slope jut, thereby withdraws from the last draw-in groove of shank 9.Last clutch components and shank are separated.And at the same time, one end of interlock curved bar 11 begins to enter interlock groove 30, interlock curved bar 11 is under the effect of spring 24, begin to discharge pressure to back-moving spring 18, removed downforce to clutch bayonet lock curved bar 14, the clutch bayonet lock 15 that clutch bayonet lock curved bar 14 rotation under the pressure effect of compression spring 18 promotes to link with pivot pin with it moves, clutch bayonet lock 15 enters in the shank low groove, with 19 one-tenth connection status of shank, under the drive of pull bar 9, move downward to the minimum point that is provided with shank 19.
The shank clutch just can drive the shank assembly and make back and forth movement up and down.

Claims (6)

1, a kind of Sewing machines that the shank hoisting mechanism is arranged, comprise head of sewing machine, drive disk assembly, pull bar and shank, pull bar and shank are installed in the head shell, it is characterized in that having the shank hoisting mechanism, be provided with between pull bar (9) and the shank (19) and be provided with a shank clutch (13) between clutch on (2) and shank and the needle bar crank linkage, described going up is provided with interlock curved bar (11) between clutch and the shank clutch.
2, a kind of Sewing machines that the shank hoisting mechanism is arranged according to claim 1, an end that it is characterized in that described interlock curved bar (11) connects a spring (24), one end of interlock curved bar (11) is aimed at the Isolating Switch that shank clutch (13) is provided with, and is used to control the keying of shank clutch; The interlock groove (30) that is provided with on an other end of interlock curved bar and the pull bar is connected; Described pull bar (9) is located in the clutch (2), and pull bar upper end corresponding on the position of clutch be provided with a groove (3), groove is used to control the keying of clutch.
3, require 2 described a kind of Sewing machiness that the shank hoisting mechanism is arranged according to profit, it is characterized in that described shank clutch comprise clutch curved bar (14) is arranged, a shank clutch bayonet lock (15) and a back-moving spring (18), Isolating Switch on the described clutch is bayonet lock curved bar (14), described bayonet lock (15) one ends are connected with bayonet lock curved bar (14) pin joint, and the other end of bayonet lock curved bar (14) is connected with a back-moving spring (18); Described go up is provided with on one clutch trip on the clutch bayonet lock (27) and in the clutch, last clutch bayonet lock (27) is fixedlyed connected with last clutch trip (24), and last clutch bayonet lock (27) can be pushed to shank by last clutch reset spring.
4, a kind of Sewing machines that the shank hoisting mechanism is arranged according to claim 3 is characterized in that described pull bar is provided with locating piece (7), and housing is provided with locating slot (8) accordingly, also is provided with fixed block (10) on the housing (1).
5, a kind of Sewing machines that the shank hoisting mechanism is arranged according to claim 3 is characterized in that described shank is connected in the housing by a cover (20) and a needle bar lower bushing (21) on the shank.
6, claim 4 or 5 described a kind of Sewing machiness that the shank hoisting mechanism is arranged, it is characterized in that described pull bar (9) upper end is connected with cylinder jointing (4) pin joint by cover (5) on the pull bar, is provided with compression spring (6) between described spring catch and the last clutch.
CN2009200525076U 2009-03-12 2009-03-12 Sewing machine with needle bar lifting mechanism Expired - Fee Related CN201395697Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009200525076U CN201395697Y (en) 2009-03-12 2009-03-12 Sewing machine with needle bar lifting mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009200525076U CN201395697Y (en) 2009-03-12 2009-03-12 Sewing machine with needle bar lifting mechanism

Publications (1)

Publication Number Publication Date
CN201395697Y true CN201395697Y (en) 2010-02-03

Family

ID=41618200

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009200525076U Expired - Fee Related CN201395697Y (en) 2009-03-12 2009-03-12 Sewing machine with needle bar lifting mechanism

Country Status (1)

Country Link
CN (1) CN201395697Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102535040A (en) * 2012-01-18 2012-07-04 中山益达服装有限公司 Underpants jumper
CN103290618A (en) * 2013-06-10 2013-09-11 浙江银工缝纫机有限公司 Straight buttonhole machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102535040A (en) * 2012-01-18 2012-07-04 中山益达服装有限公司 Underpants jumper
CN103290618A (en) * 2013-06-10 2013-09-11 浙江银工缝纫机有限公司 Straight buttonhole machine

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

Granted publication date: 20100203

Termination date: 20150312

EXPY Termination of patent right or utility model