CN201520880U - Cloth cutting device of circular buttonhole locking sewing machine - Google Patents
Cloth cutting device of circular buttonhole locking sewing machine Download PDFInfo
- Publication number
- CN201520880U CN201520880U CN2009202498482U CN200920249848U CN201520880U CN 201520880 U CN201520880 U CN 201520880U CN 2009202498482 U CN2009202498482 U CN 2009202498482U CN 200920249848 U CN200920249848 U CN 200920249848U CN 201520880 U CN201520880 U CN 201520880U
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- China
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- swing arm
- hammer
- fulcrum
- mount pad
- square groove
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Abstract
The utility model relates to a cloth cutting device of a circular buttonhole locking sewing machine. The cloth cutting device comprises an upper hammer mechanism, a lower cutter mechanism and a waste recovery device, wherein an upper hammer and an upper hammer mounting base in the upper hammer mechanism are fixedly installed, the upper hammer mounting base is fixedly installed with an upper hammer moving guide post, the front end of a swing arm is connected with the upper hammer moving guide post, a swing arm lower pressing square groove is arranged on the front portion of the swing arm of the upper hammer mechanism, a lower pressing square sliding block is arranged in the lower pressing square groove, a swing arm lower pressing rotation shaft is arranged on the center of the lower pressing square slide block, a swing arm fulcrum square groove is arranged on the back end of the swing arm, a fulcrum square slide block is arranged in the fulcrum square groove, and a swing arm fulcrum shaft is arranged on the center of the fulcrum square side block, and is rotatablely installed with the machine nose of a sewing machine. The upper hammer mechanism further consists of a swing arm driving crankshaft, wherein the front portion of the swing arm driving crankshaft is provided with a swing arm driving crankshaft fulcrum shaft, the swing arm driving crankshaft fulcrum shaft is installed on the machine nose of the sewing machine, the back end of the swing arm driving crankshaft is hinged with a cylinder piston rod, and the swing arm lower pressing rotation shaft is rotatablely installed on the front end of the swing arm driving crankshaft.
Description
Technical field
The utility model relates to Sewing machines, particularly a kind of cloth-cutting apparatus of round end buttonhole sewing Sewing machines.
Background technology
At present, the cloth-cutting apparatus of the round end buttonhole sewing Sewing machines on the market comprises hammer mechanism, lower cutter mechanism, waste recovery mechanism, and its course of work is to go up hammer to fall and lower cutter incision button hole, again through the waste material pipe, in the waste material suction trash receptacle of getter device by the below with cutting-out.Last hammer mechanism is located at the shank dead astern; Lower cutter mechanism is located under the hammer; Waste recovery mechanism is located at the Sewing machines below and is connected with lower cutter mechanism.
Owing to go up the hammer swing arm on the cloth-cutting apparatus of existing round end buttonhole sewing Sewing machines in the hammer mechanism is the middle fulcrum that is, and arrive the two ends pitch-row from equating, so the two ends active force equates the moment of fulcrum, that is to say that hammer needs great power can cut off cloth, the other end must have great power to drive, make to drive the cylinder bore increase, also supercharging device must be arranged; Volume, weight increase, and cost also increases.On the other hand, because the lower cutter constitutional detail quantity of cloth-cutting apparatus is many, the precision height, assembling is complicated, makes the lower cutter structure in assembling process, and installation time is long, assembly precision is difficult to guarantee, and is very high to assembler's specification requirement.
Summary of the invention
For overcoming the shortcoming of the cloth-cutting apparatus that has round end buttonhole sewing Sewing machines now, goal of the invention of the present utility model provides a kind of cloth-cutting apparatus of novel round end buttonhole sewing Sewing machines, the cutter shear force of the last hammer mechanism of this cloth-cutting apparatus is big, thickness adaptability to cloth is strong, lower cutter mechanism easily assembles, the assembly precision height, waste recovery mechanism good sealing effect.
The purpose of this utility model is achieved in that a kind of cloth-cutting apparatus of round end buttonhole sewing Sewing machines, comprise hammer mechanism, lower cutter mechanism, the waste recovery device, the described hammer mechanism of going up comprises hammer, last hammer mount pad, last hammer motion guide pillar, swing arm, cylinder, the described hammer of going up fixedly mounts with last hammer mount pad, described going up hammered mount pad and the fixed installation of described upward hammer motion guide pillar into shape, described swing arm front end and the described hammer motion guide pillar of going up, described swing arm front portion of going up hammer mechanism has a swing arm to press down square groove, this presses down the side's of pressing down slide block in the square groove, slide block center, the described side of pressing down has a swing arm to press down rotating shaft, there is a swing arm fulcrum square groove described swing arm rear end, one fulcrum side's slide block is arranged in this fulcrum square groove, there is a swing arm fulcrum shaft at slide block center, described fulcrum side, and this swing arm fulcrum shaft and head of sewing machine rotate to be installed; The described hammer mechanism of going up also comprises a swing arm driving crank, there is a swing arm driving crank fulcrum shaft this swing arm driving crank front portion, described swing arm driving crank fulcrum shaft is installed on the head of sewing machine, described swing arm driving crank rear end and described cylinder piston rod are hinged, and described swing arm presses down the front end that rotating shaft is rotatably installed in described swing arm driving crank.
It is the square groove that the side's of the pressing down slide block baffle plate by the ccontaining table top of swing arm front portion one side's of pressing down slide block and this table top top constitutes that described swing arm presses down square groove, and the described square baffle plate that presses down fixedly mounts with swing arm.
Described lower cutter mechanism comprises lower cutter, cutting knife mount pad, and lower cutter is fixed on the cutting knife mount pad by the cutting knife pressing plate; Described lower cutter mechanism also comprises a holder, and described cutting knife mount pad front end is hinged on the holder by bearing pin, and described cutting knife mount pad rear portion is provided with cutting knife mount pad adjustment screw; Described cutting knife mount pad is by trip bolt and the fixed installation of described holder, and described holder is fixedly mounted on the Sewing machines support plane by screw, and the holder center has the waste material pipe that through hole is installed.
In the described waste recovery device, between hose coupling and the Connection Block volute spring is installed.
The beneficial effect that the utility model produces is:
1, the hammer mechanism of going up of the present utility model has adopted air cylinder driven swing arm driving crank, swing arm driving crank to drive the structure of swing arm, increase swing arm and be applied to the downforce of hammering into shape on the motion guide pillar, the cutter shear force of hammer mechanism is increased, thickness adaptability to cloth is strong, need not to increase driving cylinder bore and supercharging device and can produce bigger cutter shear force, reduced the volume and weight of cloth-cutting apparatus, cost is low.
2, because the cutting knife mount pad of lower cutter structure of the present utility model can be regulated, the lower cutter structure is easily assembled, the assembly precision height does not have higher specification requirement to the assembler, and assembly fee is low.
3, owing between the hose coupling of waste recovery of the present utility model mechanism and the Connection Block volute spring is installed, improved sealing effectiveness, made the waste material intraductal atmospheric pressure stable, waste material is discharged effective.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 has adopted round end buttonhole sewing Sewing machines overall structure schematic diagram of the present utility model;
Fig. 3 is a prior art round end buttonhole sewing Sewing machines overall structure schematic diagram.
The specific embodiment
Embodiment:
Referring to Fig. 1, Fig. 2, the cloth-cutting apparatus of the utility model round end buttonhole sewing Sewing machines comprises hammer mechanism, lower cutter mechanism, waste recovery device.Last hammer mechanism 1 comprise the hammer 1-1, on hammer into shape mount pad 1-2, on hammer into shape motion guide pillar 1-4, swing arm 1-7, on hammer cylinder 1-18 into shape.Last hammer 1-1 is fixed on the hammer mount pad 1-2 with fluting pressing plate 1-3, last hammer mount pad 1-2 and last hammer motion guide pillar 1-4 fixed installation, last hammer motion guide pillar 1-4 and swing arm 1-7 are movably hinged with bearing pin 1-6, swing arm 1-7 front portion has a swing arm to press down square groove, this presses down the side of pressing down a slide block 1-8 in the square groove, this slide block center, side of pressing down has a swing arm to press down rotating shaft 1-9, there is a swing arm fulcrum square groove swing arm 1-7 rear end, one fulcrum side slide block 1-13 is arranged in this fulcrum square groove, there is a swing arm fulcrum shaft 1-14 at this slide block center, fulcrum side, and this swing arm fulcrum shaft and head of sewing machine rotate to be installed; Last hammer mechanism 1 also comprises a swing arm driving crank 1-10, there is a swing arm driving crank fulcrum shaft 1-11 this swing arm driving crank front portion, this swing arm driving crank fulcrum shaft is installed on the head of sewing machine, swing arm driving crank 1-10 rear end is hinged by cylinder joint 1-16 and last hammer cylinder 1-18 piston rod, and swing arm presses down the front end that rotating shaft 1-9 is rotatably installed in described swing arm driving crank 1-10.
In the present embodiment, it is the square groove that the side of the pressing down slide block baffle plate 1-12 by the ccontaining table top 1-5 of swing arm front portion one side's of pressing down slide block and this table top top constitutes that described swing arm presses down square groove, and the described square baffle plate that presses down fixedly mounts with swing arm.
The course of action of last hammer mechanism is: on hammer into shape cylinder 1-18 by bearing pin 1-19 mounting support in the Sewing machines support, last hammer cylinder 1-18 ventilation, cylinder piston rod 1-17 releases, promoting swing arm driving crank 1-10 rotates around swing arm driving crank fulcrum shaft 1-11, the swing arm of swing arm driving crank 1-10 by this swing arm driving crank front end presses down rotating shaft 1-9 and drives the side of pressing down slide block 1-8 and move downwards, the side's of pressing down slide block presses down swing arm 1-7 and promotes swing arm 1-7 around swing arm fulcrum shaft 1-14 rotation, and hammer motion guide pillar 1-4 moves downward in the head of sewing machine hole thereby drive upward.
The hammer mechanism of going up of the present utility model is compared with prior art (referring to Fig. 3), the hammer mechanism of going up of the present utility model has adopted air cylinder driven swing arm driving crank, swing arm driving crank to drive the structure of swing arm, increase swing arm and be applied to the downforce of hammering into shape on the motion guide pillar, the cutter shear force of hammer mechanism is increased, thickness adaptability to cloth is strong, need not to increase driving cylinder bore and supercharging device and can produce bigger cutter shear force, reduced the volume and weight of cloth-cutting apparatus, cost is low.
In the present embodiment, the lower cutter mechanism 2 of the utility model cloth-cutting apparatus comprises lower cutter 2-1, cutting knife mount pad 2-2, and lower cutter 2-1 is fixed on the cutting knife mount pad 2-2 by cutting knife pressing plate 2-3; Described lower cutter mechanism 2 also comprises a holder 2-4, and described cutting knife mount pad 2-2 front end is hinged on the holder 2-4 by bearing pin 2-5, and cutting knife mount pad 2-2 rear portion is provided with cutting knife mount pad adjustment screw 2-8; Described cutting knife mount pad is by trip bolt 2-9 and holder 2-4 fixed installation, and holder 2-4 is fixedly mounted on the Sewing machines support plane by screw, and holder 2-4 center has waste material pipe 3-1 that through hole is installed.
When lower cutter of the present utility model mechanism installs, earlier with holder 2-4 and Sewing machines support Plane Installation, when the cutting knife mount pad is installed, can carry out level by cutting knife mount pad adjustment screw 2-8 cutting knife mount pad regulates, after the adjusting level, with trip bolt 2-9 cutting knife mount pad and holder 2-4 are fixed again, lower cutter of the present utility model mechanism compares with prior art (referring to Fig. 3), can realize the level installation of cutting knife mount pad easily, the lower cutter structure is easily assembled, the assembly precision height does not have higher specification requirement to the assembler, and assembly fee is low.
In the present embodiment, in the waste recovery device 3, between hose coupling 3-4 and the Connection Block 3-3 volute spring 3-5 is installed.
In waste recovery device 3, Connection Block 3-3 is screwed on food tray, and volute spring 3-5 is enclosed within on the hose coupling 3-4, and joint rubber ring 3-2 is contained in the interior hole slot of hose coupling 3-4, be installed in again among the Connection Block 3-3, be stuck in the hose coupling other end jump ring groove with jump ring 3-6.The machine normal operating conditions is waste material pipe 3-1 upper end rubber ring 2-7 and the sealing of cutting knife mount pad 2-2 baseplane, and waste material pipe 3-1 lower end contacts the formation closed chamber with joint rubber ring 3-2 among the hose coupling 3-4, and the while, volute spring 3-5 was compressed.Waste recovery device of the present utility model is compared with prior art (referring to Fig. 3), has increased volute spring 3-5, has strengthened sealing stability, has improved sealing effectiveness, makes the waste material intraductal atmospheric pressure stable, and waste material is discharged effective.
Claims (4)
1. the cloth-cutting apparatus of a round end buttonhole sewing Sewing machines, comprise hammer mechanism, lower cutter mechanism, the waste recovery device, it is characterized in that: the described hammer mechanism of going up comprises hammer, last hammer mount pad, last hammer motion guide pillar, swing arm, cylinder, the described hammer of going up fixedly mounts with last hammer mount pad, described going up hammered mount pad and the fixed installation of described upward hammer motion guide pillar into shape, described swing arm front end and described upward hammer motion guide pillar are hinged, described swing arm front portion of going up hammer mechanism has a swing arm to press down square groove, this presses down the side's of pressing down slide block in the square groove, slide block center, the described side of pressing down has a swing arm to press down rotating shaft, there is a swing arm fulcrum square groove described swing arm rear end, one fulcrum side's slide block is arranged in this fulcrum square groove, there is a swing arm fulcrum shaft at slide block center, described fulcrum side, and this swing arm fulcrum shaft and head of sewing machine rotate to be installed; The described hammer mechanism of going up also comprises a swing arm driving crank, there is a swing arm driving crank fulcrum shaft this swing arm driving crank front portion, described swing arm driving crank fulcrum shaft is installed on the head of sewing machine, described swing arm driving crank rear end and described cylinder piston rod are hinged, and described swing arm presses down the front end that rotating shaft is rotatably installed in described swing arm driving crank.
2. the cloth-cutting apparatus of round end buttonhole sewing Sewing machines according to claim 1, it is characterized in that: it is the square groove that the side's of the pressing down slide block baffle plate by the ccontaining table top of swing arm front portion one side's of pressing down slide block and this table top top constitutes that described swing arm presses down square groove, and the described square baffle plate that presses down fixedly mounts with swing arm.
3. the cloth-cutting apparatus of round end buttonhole sewing Sewing machines according to claim 1 is characterized in that: described lower cutter mechanism comprises lower cutter, cutting knife mount pad, and lower cutter is fixed on the cutting knife mount pad by the cutting knife pressing plate; Described lower cutter mechanism also comprises a holder, and described cutting knife mount pad front end is hinged on the holder by bearing pin, and described cutting knife mount pad rear portion is provided with cutting knife mount pad adjustment screw; Described cutting knife mount pad is by trip bolt and the fixed installation of described holder, and described holder is fixedly mounted on the Sewing machines support plane by screw, and the holder center has the waste material pipe that through hole is installed.
4. according to the cloth-cutting apparatus of claim 1 or 3 described round end buttonhole sewing Sewing machiness, it is characterized in that: in the described waste recovery device, between hose coupling and the Connection Block volute spring is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202498482U CN201520880U (en) | 2009-10-15 | 2009-10-15 | Cloth cutting device of circular buttonhole locking sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202498482U CN201520880U (en) | 2009-10-15 | 2009-10-15 | Cloth cutting device of circular buttonhole locking sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201520880U true CN201520880U (en) | 2010-07-07 |
Family
ID=42507057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202498482U Expired - Fee Related CN201520880U (en) | 2009-10-15 | 2009-10-15 | Cloth cutting device of circular buttonhole locking sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201520880U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111206344A (en) * | 2019-08-27 | 2020-05-29 | 常州智谷机电科技有限公司 | Punching device for pattern machine |
| CN117300580A (en) * | 2023-11-01 | 2023-12-29 | 东莞市富明钮扣有限公司 | Synchronous lamination equipment |
-
2009
- 2009-10-15 CN CN2009202498482U patent/CN201520880U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111206344A (en) * | 2019-08-27 | 2020-05-29 | 常州智谷机电科技有限公司 | Punching device for pattern machine |
| CN117300580A (en) * | 2023-11-01 | 2023-12-29 | 东莞市富明钮扣有限公司 | Synchronous lamination equipment |
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Legal Events
| 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: 20100707 Termination date: 20141015 |
|
| EXPY | Termination of patent right or utility model |