CN205917452U

CN205917452U - Two -needle sewing machine's line knot that cuts constructs

Info

Publication number: CN205917452U
Application number: CN201620759433.XU
Authority: CN
Inventors: 阮孟定
Original assignee: ZHEJIANG DUMA SEWING MACHINE Co Ltd
Current assignee: ZHEJIANG DUMA SEWING MACHINE Co Ltd
Priority date: 2016-07-18
Filing date: 2016-07-18
Publication date: 2017-02-01
Anticipated expiration: 2026-07-18

Abstract

The utility model belongs to the technical field of sewing machine, specifically indicate two -needle sewing machine's line knot that cuts constructs, include the stationary knife and move the sword, and it is adjustable the knife face of stationary knife is laminated to the adjusting part of the degree of leaning on with the knife face that moves the sword mutually, the adjusting part includes set knife seat, the afterbody of stationary knife is fixed set knife seat is last, and the middle part of stationary knife is equipped with adjustable stationary knife knife face and supports the adjusting screw who leans on the elasticity with moving the sword knife face, an object of the utility model is to provide a two -needle sewing machine's line knot that cuts constructs that can adjust the stationary knife and move sword clearance and long service life.

Description

The trimming structure of two-needle sewing machine

Technical field

This utility model belongs to sewing machine technique field, refers specifically to the trimming structure of two-needle sewing machine.

Background technology

At present, the thread shearing cutter of two-needle sewing machine is mostly made up of moving knife and stationary knife, and the blade of stationary knife is fixed on pin down The downside of plate, the blade of moving knife is fixed on the upside of rotating shuttle frame upward, and stationary knife and moving knife form scissor thread shearing cutter, and it is not enough Part is: ancistroid,ancistrous moving knife blade is arranged on the boss of moving knife head, due to the area of boss little it is easy to fixed Knife reduces the height of boss due to friction during coordinating trimming, in turn result in that fit clearance is excessive, and the section of trimming is not Line even can not be cut off by rule.

Content of the invention

In order to overcome defect of the prior art, the purpose of this utility model is to provide one kind can adjust stationary knife and move The trimming structure of the two-needle sewing machine of knife gap and long service life.

The purpose of this utility model is achieved in that

The trimming structure of two-needle sewing machine, including stationary knife and moving knife, and the knife face of stationary knife described in scalable and moving knife Knife face fits against the adjusting part of degree；

Described adjusting part includes stationary knife seat, and the afterbody of described stationary knife is fixed on described stationary knife seat, and the middle part of stationary knife sets There is the scalable stationary knife knife face and moving knife knife face adjusting screw against elasticity.

This utility model is further arranged to: the stem of described stationary knife forms bending part to moving knife bending, before bending part Angle forms blade, the knife face of blade and moving knife against.

This utility model is further arranged to: the bending angle of described bending part is 115 ° -185 °.

This utility model is further arranged to: the lower surface of described moving knife abuts and arranges resilient support rod.

This utility model is further arranged to: described support rod includes fixed part and elastic, and fixed part is fixed on stationary knife seat On, one end of elastic is extended to the front end of moving knife and is abutted with moving knife, and elastic is located at the lower section of stationary knife bending part.

This utility model is further arranged to: the groove of insertion tailing edge is provided with the upper surface of described moving knife, described recessed It is provided with through hole, through hole is arranged on the front end of groove in groove.

This utility model is further arranged to: bracing wire mouth one and the bracing wire mouth two of communication groove are provided with described moving knife, Be provided with connection bracing wire mouth two on the lower surface of moving knife slips wire casing, described slips the edge that wire casing runs through moving knife.

This utility model is further arranged to: the leading flank of described through hole is less than or equal to the angle of the upper surface of moving knife 90 degree.

This utility model is further arranged to: the section of described through hole is the closing song that arbitrary curve or/and line segment are formed Line.

This utility model project compared to existing technology and beneficial have the technical effect that after a long time use, stationary knife and dynamic Gap between knife increases, and trimming effect is deteriorated, by the setting of adjusting screw, between can adjusting between moving knife and stationary knife Gap, trimming effect is good, long service life.

Brief description

Fig. 1 is structural representation of the present utility model；

Fig. 2 is configuration schematic diagram of the present utility model；

Fig. 3 is the structural representation of stationary knife seat of the present utility model；

Fig. 4 is stationary knife structural representation of the present utility model；

Fig. 5 is the sectional view of this utility model stationary knife；

Fig. 6 is the structural representation of this utility model moving knife；

Fig. 7 is the other direction partial structural diagram of this utility model moving knife；

Fig. 8 is the structural representation of this utility model support rod；

Fig. 9 is the other direction structural representation of this utility model support rod.

In figure label implication:

1- stationary knife；11- bending part；12- installing hole one；13- installing hole two；2- moving knife；21- groove；

22- through hole；23- installing hole four；24- bracing wire mouth one；25- bracing wire mouth two；26- slips wire casing；

3- stationary knife seat；31- mounting groove；32- adjusts face；4- adjusting screw；5- ledger-plate screw；6- support rod；

61- fixed part；62- elastic；63- abutting part；64- installing hole three.

Specific embodiment

With specific embodiment, this utility model is further described below in conjunction with the accompanying drawings:

Referring to shown in Fig. 1 to Fig. 9, the trimming structure of two-needle sewing machine, including stationary knife 1 and moving knife 2 and adjust described fixed The knife face of knife 1 is fitted against the adjusting part of degree with the knife face of moving knife 2；Described adjusting part includes stationary knife seat 3, described fixed The afterbody of knife 1 is fixed on described stationary knife seat 3, and the middle part of stationary knife 1 is provided with scalable stationary knife 1 knife face with moving knife 2 knife face against pine The adjusting screw 4 of tightness；In the present embodiment, the upper surface of stationary knife seat 3 is provided with regulation face 32 and is adapted to stationary knife 1 afterbody Mounting groove 31, adjusts the bottom surface that face 32 is less than mounting groove 31, is so easy to stationary knife 1 is carried out with compression regulation, stationary knife 1 passes through stationary knife Piece screw 5 is fixing with mounting groove 31, and adjusting screw 4 is connected with regulation face 32, after a long time use, between stationary knife 1 and moving knife 2 Gap increase, trimming effect be deteriorated, by the setting of adjusting screw 4, the gap between moving knife 2 and stationary knife 1 can be adjusted, cut Line effect is good, long service life.

Be further arranged to: the stem of described stationary knife 1 to moving knife 2 bending formed bending part 11, bending part 11 front angular Become blade, the knife face of blade and moving knife 2 against.

It is further arranged to: the bending angle a of described bending part 11 is 115 ° -185 °, so in the blade of bending part 11 With the knife face of moving knife 2 against and during trimming, stationary knife 1 has certain cushioning effect, can reduce connecing of stationary knife 1 and moving knife 2 simultaneously Contacting surface is amassed, and is easy to trimming, improves service life.

It is further arranged to: the lower surface of described moving knife 2 abuts and arranges resilient support rod 6, so can be to moving knife 2 Support so to one, make moving knife 2 even closer with the contact of stationary knife 1, so that trimming effect is improved.

It is further arranged to: described support rod 6 includes fixed part 61 and elastic 62, fixed part 61 is fixed on stationary knife seat 3, One end of elastic 62 is extended to the front end of moving knife 2 and is abutted with moving knife 2, and elastic 62 is located at the lower section of stationary knife 1 bending part 11, And the front end of elastic 62 described in the present embodiment is provided with abutting part 63, abutting part 63 when moving knife 2 rotates all with moving knife 2 Lower surface abuts, and the upper surface of moving knife 2 so can be made to abut with the blade of stationary knife 1 all the time in trimming, trimming effect is good.

It is further arranged to: the groove 21 of insertion tailing edge is provided with the upper surface of described moving knife 2, sets in described groove 21 It is equipped with through hole 22, through hole 22 is arranged on the front end of groove 21.

It is further arranged to: bracing wire mouth 1 and the bracing wire mouth 2 25 of communication groove 21, moving knife are provided with described moving knife 2 Be provided with connection bracing wire mouth 2 25 on 2 lower surface slips wire casing 26, described slips the edge that wire casing 26 runs through moving knife 2, by slipping The setting of wire casing 26 can be after moving knife 2 completes trimming action, and bottom line is slipped away from slipping wire casing 26, it is to avoid bottom line is to moving knife 2 times The interference of receipts action, also prevent moving knife 2 and the bottom line after trimming is caused with abrasion fluffing, to bottom line next time when being easy to sew Use.

It is further arranged to: the leading flank of described through hole 22 is less than or equal to 90 degree with the angle of the upper surface of moving knife 2.

It is further arranged to: the section of described through hole 22 is the closed curve that arbitrary curve or/and line segment are formed, and so may be used So that when the blade of the cutting edge of moving knife 2 upper groove 21 and stationary knife 1 occurs trimming action, more preferable to the effect of trimming.

The afterbody of described stationary knife 1 is provided with installing hole 1, and the middle part of stationary knife 1 is provided with installing hole 2 13, ledger-plate Screw 5 by installing hole 1, stationary knife 1 is fixed on stationary knife seat 3, adjusting screw 4 by installing hole 2 13 adjust stationary knife 1 with The gap of moving knife 2, and stationary knife 1 is located at the downside of needle plate, the installing hole 3 64 that support rod 6 passes through to arrange on fixed part 61 is fixed on fixed On tool rest 3, described moving knife 2 is fixed on the upside of rotating shuttle frame by the installing hole 4 23 of its afterbody, and the profile of moving knife 2 is fish hook Shape, stationary knife 1 and moving knife 2 form scissor thread shearing cutter.

Above-described embodiment is only preferred embodiment of the present utility model, not limits protection model of the present utility model according to this Enclose, therefore: all equivalence changes done according to structure of the present utility model, shape, principle, protection of the present utility model all should be covered by Within the scope of.

Claims

1. the trimming structure of two-needle sewing machine, including stationary knife and moving knife it is characterised in that: also include the knife of stationary knife described in scalable Face is fitted against the adjusting part of degree with the knife face of moving knife；

Described adjusting part includes stationary knife seat, and the afterbody of described stationary knife is fixed on described stationary knife seat, and the middle part of stationary knife is provided with can Adjust stationary knife knife face and moving knife knife face against the adjusting screw of elasticity.

2. two-needle sewing machine according to claim 1 trimming structure it is characterised in that: the stem of described stationary knife is to moving knife Bending forms bending part, and the anterior angle of bending part forms blade, the knife face of blade and moving knife against.

3. two-needle sewing machine according to claim 2 trimming structure it is characterised in that: the bending angle of described bending part For 115 ° -185 °.

4. the two-needle sewing machine according to claim 1 or 2 or 3 trimming structure it is characterised in that: the lower end of described moving knife Face abuts and arranges resilient support rod.

5. two-needle sewing machine according to claim 4 trimming structure it is characterised in that: described support rod include fixed part and Elastic, fixed part is fixed on stationary knife seat, and one end of elastic is extended to the front end of moving knife and abutted with moving knife, elastic position Lower section in stationary knife bending part.

6. two-needle sewing machine according to claim 5 trimming structure it is characterised in that: set on the upper surface of described moving knife It is equipped with the groove of insertion tailing edge, in described groove, is provided with through hole, through hole is arranged on the front end of groove.

7. two-needle sewing machine according to claim 6 trimming structure it is characterised in that: be provided with connection on described moving knife The bracing wire mouth one of groove and bracing wire mouth two, what the lower surface of moving knife was provided with connection bracing wire mouth two slips wire casing, described slips wire casing Run through the edge of moving knife.

8. two-needle sewing machine according to claim 7 trimming structure it is characterised in that: the leading flank of described through hole with dynamic The angle of the upper surface of knife is less than or equal to 90 degree.

9. the two-needle sewing machine according to claim 6 or 7 or 8 trimming structure it is characterised in that: the section of described through hole Closed curve for arbitrary curve or/and line segment formation.