CN201162116Y

CN201162116Y - Automatic pressure foot lifting mechanism of computer direct-driven double needle lockstitch machine

Info

Publication number: CN201162116Y
Application number: CNU2008200018274U
Authority: CN
Inventors: 杨赛国
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-01-11
Filing date: 2008-01-11
Publication date: 2008-12-10
Anticipated expiration: 2018-01-11

Abstract

The utility model discloses a computer direct drive double-needle flat seam machine automatic lifting presser foot mechanism, which comprises an electro-magnet, a crank lever, a lifting press shaft and a driving element, wherein the electro-magnet is installed on a rear window plate of a double-needle flat seam machine head through an electro-magnet holder, the driving element is rotatably installed on the other side of the rear window plate, the power output end of the electro-magnet is connected with the crank lever, one end of the lifting press shaft is engaged with the driving element, and the other end is connected with the crank lever after passing through the rear window plate. The mechanism can greatly reduce working strength of workers, increases working efficiency, and simplifies the machine volume.

Description

Computer directly drives the automatic presser foot lifter of double needle lockstitch machine mechanism

Technical field

The utility model relates to the presser foot lifter mechanism of Sewing machines, exactly is the automatic presser foot lifter mechanism of double needle lockstitch machine.

Background technology

Existing crosspointer sewing machine for covering chain stitch in the course of the work, whenever finish one section stitching, just need lift presser feet, generally go to finish this action by knee or hand-driven mechanism by manpower, and bestow bigger moment, and finish by manpower in the process of this action, Sewing machines is idle, cause the great wasting of resources, and double needle lockstitch machine is in the workpiece process, the frequency of presser foot lifter is quite high, and a general operative employee need finish nearly 1000 actions by knee or hand in one day 8 hours the course of work, this has brought the suitable amount of labour with regard to the operative employee who gives Sewing machines, and expend time in, very easily produce fatigue and boredom, thereby influenced product quality and production efficiency.To this, Sewing machines production and research staff seeking for a long time always a kind of not only simply but also high-efficiency method solve the presser foot lifter problem, for example drive by install mechanism's electricity consumption magnet application of force additional at the knee point of application, though certain effect is arranged, but this mechanism structure complexity, bulky, and noise, vibrations all wayward.

The utility model content

At the deficiency that prior art exists, the utility model aims to provide a kind of computer and directly drives the automatic presser foot lifter of double needle lockstitch machine mechanism.

The technical solution adopted in the utility model is:

A kind of computer directly drives the automatic presser foot lifter of double needle lockstitch machine mechanism, comprise electromagnet, crank, lift last item and driving member, described electromagnet is installed on the back luffer boards of double needle lockstitch machine head by the electromagnet bearing, driving member is installed in rotation on the opposite side of back luffer boards, the clutch end of electromagnet is connected with crank, lift last item one end and match with driving member, the other end passes the back luffer boards and is connected with crank.

The described twisted plate of last item by its end of lifting matches with driving member, and this twisted plate is with to lift a last item end connected vertically rounded, and the outside bending of the other end is rectangular in shape.

Described back luffer boards are provided with lifts the last item axle sleeve.

The described last item axle sleeve of lifting has turret head, and the one end is provided with external screw thread, and the sleeve thread end is tightened with hex nut at opposite side after passing the back luffer boards.

Be provided with back-up ring and packing ring between described crank and the sleeve end, lift and also be provided with back-up ring and packing ring between last item and the sleeve end.

The utility model directly installs a small electrical magnet additional directly driving on the luffer boards behind the double needle lockstitch machine head, through simple machine driving, directly force in machine intimate presser foot lifter drive mechanism, the control system of machine is when the machinery requirement presser foot lifter, come presser foot lifter by the adhesive of the program of setting by electromagnet, thereby greatly reduce working strength of workers, improved efficiency, simplified the machine volume.

Description of drawings

Fig. 1 is a decomposition texture schematic diagram of the present utility model;

Fig. 2 is the structural representation of back-up ring;

Fig. 3 is a structural representation of lifting last item;

Fig. 4 is the left view of Fig. 3;

Fig. 5 is the vertical view of Fig. 4;

Fig. 6 is a structural representation of lifting the last item axle sleeve;

Fig. 7 is the vertical view of Fig. 6.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail.

Description of reference numerals is as follows:

1---electromagnet 2---crank

3---lifting last item 4---electromagnet bearing

5---back luffer boards 6---twisted plate

7---driving member 8---axle sleeve

9---turret head 10---hex nut

11---back-up ring 12---packing ring

Shown in Fig. 1～7, this computer directly drives the automatic presser foot lifter of double needle lockstitch machine mechanism mainly by electromagnet 1, crank 2, lift last item 3 and driving member 7 compositions, electromagnet 1 is installed on the back luffer boards 5 of double needle lockstitch machine head by electromagnet bearing 4, driving member 7 is installed in rotation on the opposite side of back luffer boards 5, the clutch end of electromagnet 1 is connected with crank 2, lifting the twisted plate 6 of last item 3 by the one end matches with driving member 7, twisted plate 6 is with to lift a last item end connected vertically rounded, the outside bending of the other end is rectangular in shape, the other end of lifting last item 3 passes back luffer boards 5 and is connected with crank 2, back luffer boards 5 are provided with lifts last item axle sleeve 8, this axle sleeve has turret head 9, the one end is provided with external screw thread, the sleeve thread end is tightened with hex nut 10 at opposite side after passing the back luffer boards, be provided with back-up ring 11 and packing ring 12 between crank 2 and the sleeve end, lift and also be provided with back-up ring 11 and packing ring 12 between last item 3 and the sleeve end.

Operation principle of the present utility model: electromagnet drives connected crank-swinging by output adhesive and the rectilinear motion that unclasps, lift the last item swing thereby drive, drive driving member by the bend of lifting last item again and swing around the shaft, move upward or downward thereby drive the presser foot device that links with driving member.

The utility model is not limited to above-mentioned preferred forms, and anyone can draw other various forms of products under enlightenment of the present invention.Though but on its shape or structure, do any variation, every identical with the utility model or akin technical scheme is all within its protection domain.

Claims

1, a kind of computer directly drives the automatic presser foot lifter of double needle lockstitch machine mechanism, it is characterized in that, comprise electromagnet, crank, lift last item and driving member, described electromagnet is installed on the back luffer boards of double needle lockstitch machine head by the electromagnet bearing, driving member is installed in rotation on the opposite side of back luffer boards, the clutch end of electromagnet is connected with crank, lifts last item one end and matches with driving member, and the other end passes the back luffer boards and is connected with crank.

2, computer according to claim 1 directly drives the automatic presser foot lifter of double needle lockstitch machine mechanism, it is characterized in that, the described twisted plate of last item by its end of lifting matches with driving member, and this twisted plate is with to lift a last item end connected vertically rounded, and the outside bending of the other end is rectangular in shape.

3, computer according to claim 1 directly drives the automatic presser foot lifter of double needle lockstitch machine mechanism, it is characterized in that, described back luffer boards are provided with lifts the last item axle sleeve.

4, computer according to claim 3 directly drives the automatic presser foot lifter of double needle lockstitch machine mechanism, it is characterized in that, the described last item axle sleeve of lifting has turret head, and the one end is provided with external screw thread, and the sleeve thread end is tightened with hex nut at opposite side after passing the back luffer boards.

5, computer according to claim 4 directly drives the automatic presser foot lifter of double needle lockstitch machine mechanism, it is characterized in that, is provided with back-up ring and packing ring between described crank and the sleeve end, lifts and also is provided with back-up ring and packing ring between last item and the sleeve end.