CN101413184B

CN101413184B - Numerical control automatic trimming overedger

Info

Publication number: CN101413184B
Application number: CN2007101640043A
Authority: CN
Inventors: 阮孟定; 施伏法
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-16
Filing date: 2007-10-16
Publication date: 2011-10-26
Anticipated expiration: 2027-10-16
Also published as: CN101413184A

Abstract

The invention relates to an automatic digital control trimming overedger, which comprises a motor drive unit, a presser foot lifting mechanism, an automatic trimming mechanism and a machine body, wherein the presser foot lifting mechanism comprises a damping washer and an electromagnet; the damping washer is helically sleeved on the top of the cylindrical damping washer; an electromagnetic iron core is exposed at the bottom of the electromagnet; an electromagnet support is fixed on the lower part of the electromagnet through a screw which is sleeved with the washer; the automatic trimming mechanism comprises an offsetting spring, a connecting rod, an inner electromagnet and a connecting hook; the upper end of the offsetting spring is hung into a hanging hole on the utmost front of the connecting rod; the rear end of the connecting rod is connected with an upper tool rest the rear end of which is fixed with an upper tangent knife through bolts; and a rolling shaft passes through a guide plate and a trepan boring of the upper tool rest. The automatic digital control trimming overedger has the advantages that the whole machine is driven to operate by a servo motor, so that residual lines can be completely cut and the suture line material and the time are saved; and presser feet are automatically raised by means of being driven by the electromagnet, so that the overall work efficiency is improved.

Description

A kind of numerical control automatic trimming overedger

Technical field

The present invention relates to a kind of numerical control automatic trimming overedger.

Background technology

In the overall structure of overlock machine equipment, presser foot device and wire shear part are divided into important local unit, and the height of these two unit operational efficiency directly affects the production and processing efficient in the entire work process.Some traditional overlock machines, the presser feet function of Sewing machines will be so long as will send into the cloth of eedle position and be pressed on the feeding tooth, so that can better guide cloth to move sews, after the presser feet of presser feet lifting mechanism wherein lifts, the cloth of different-thickness just can be sent on the feeding tooth, and a lot of presser feet lifting mechanisms are installed in fuselage afterbody.And traditional overlock machine trimming partly needs manual scissors to carry out tangent line, cloth make finish after, operating personnel with cloth tail wire pigtail around with cutting knife or by the cutter line on the presser feet arm it being cut off to the presser feet front end, also can carry out by the hand switch that is provided with, not only can't cut unnecessary residual line fully, the operating time is longer, do not reach desirable sewing efficiency, and can waste a large amount of wire rods, and cause the increase of production cost, influence economic benefit.

Summary of the invention

The purpose of this invention is to provide a kind of numerical control automatic trimming overedger, can't cut long, waste wide variety of materials of unnecessary residual line, operating time, deficiency that whole work efficiency is low fully with what overcome prior art.

The objective of the invention is to be achieved through the following technical solutions:

A kind of numerical control automatic trimming overedger, comprise motor drive unit, presser feet lifting mechanism, automatic shearing mechanism and body, described presser feet lifting mechanism comprises damping pad, electromagnet, electromagnetic core, electromagnet stent and roller, damping pad rotation set is in the top of cylindric electromagnet, electromagnetic core is exposed to the bottom of electromagnet, electromagnet stent is fixed in the bottom of electromagnet by the screw that is with pad, the below of electromagnet stent is provided with curved shape support, and roller is by pad, screw and be with the bottom of fixed by nut in curved shape support.Described automatic shearing mechanism comprise back-moving spring, connecting rod, upper tool post, down tangential knife, go up tangential knife, sectional shelf-unit, internal electrical magnet and butt hook, the top of internal electrical magnet penetrates magnetic core, and the connecting axle that is installed with the band pad in the through hole on magnetic core top is fixed on the sectional shelf-unit; The top of sectional shelf-unit is provided with brace, and the top of butt hook is hung in the through hole of brace, and its underpart is positioned in the hanging hole of connecting rod by screw; The upper end of back-moving spring is hung in the connecting rod hanging hole foremost, and its lower end is fixed on the shell of body; The rear end of connecting rod connects the upper tool post that has the frame groove, and the rear end of upper tool post is by the fixing tangential knife of going up of screw, and the axis of rolling passes in the trepanning of guide plate and upper tool post, and the knife rest frame of upper tool post rear side connects tangential knife down by spring.Described motor drive unit comprises servomotor, motor fixed rack.

The beneficial effect of numerical control automatic trimming overedger of the present invention is: drive whole machine run by servomotor, combination by upper and lower tangential knife realizes thread cutting action, can thoroughly cut unnecessary residual line, save suture material, save time, improve the operating efficiency of trimming process; Adopt the mode of solenoid actuated that presser feet is promoted automatically, improved whole operating efficiency.

Description of drawings

With reference to the accompanying drawings the present invention is described in further detail below.

Fig. 1 is the perspective view of the described numerical control automatic trimming overedger of the embodiment of the invention;

Fig. 2 is the presser feet lifting mechanism exploded view of the described numerical control automatic trimming overedger of the embodiment of the invention;

Fig. 3 is the automatic shearing mechanism exploded view of the described numerical control automatic trimming overedger of the embodiment of the invention;

Fig. 4 is the partial exploded view of the described numerical control automatic trimming overedger of the embodiment of the invention;

Fig. 5 is the motor drive unit exploded view of the described numerical control automatic trimming overedger of the embodiment of the invention.

Among the figure:

1, motor drive unit; 2, servomotor; 3, motor fixed rack; 4, screw; 5, drive pulley; 6, presser feet lifting mechanism; 7, damping pad; 8, electromagnet; 9, electromagnetic core; 10, electromagnet stent; 11, pad; 12, nut; 13, curved shape support; 14, roller; 15, automatic shearing mechanism; 16, back-moving spring; 17, connecting rod; 18, knife rest frame; 19, upper tool post; 20, frame groove; 21, following tangential knife; 22, the axis of rolling; 23, guide plate; 24, go up tangential knife; 25, magnetic core; 26, sectional shelf-unit; 27, connecting axle; 28, connecting bushing; 29, brace; 30, internal electrical magnet; 31, butt hook; 32, body.

The specific embodiment

As shown in Figure 1, the described numerical control automatic trimming overedger of the embodiment of the invention, comprise motor drive unit 1, presser feet lifting mechanism 6, automatic shearing mechanism 15, body 32, the below, side of body 32 is provided with motor drive unit 1, motor drive unit 1 top-right body 32 rear portions are provided with presser feet lifting mechanism 6, and presser feet lifting mechanism 6 anterior bodies 32 tops are provided with automatic shearing mechanism 15.

As shown in Figure 2, the described numerical control automatic trimming overedger of the embodiment of the invention, its presser feet lifting mechanism 6 comprises damping pad 7, electromagnet 8, electromagnetic core 9, electromagnet stent 10 and roller 14, damping pad 7 rotation sets are in the top of cylindric electromagnet 8, electromagnetic core 9 is exposed to the bottom of electromagnet 8, electromagnet stent 10 is fixed in the bottom of electromagnet 8 by the screw that is with pad 11, the below of electromagnet stent 10 is provided with curved shape support 13, roller 14 passes through pad, screw also is with the bottom that nut 12 is fixed in curved shape support 13, and the sidepiece and the top bending part of curved shape support 13 are equipped with the screw that is used for DRIVE SCREWS.

As shown in Figure 3-4, the described numerical control automatic trimming overedger of the embodiment of the invention, its automatic shearing mechanism 15 comprises back-moving spring 16, connecting rod 17, upper tool post 19, following tangential knife 21, goes up tangential knife 24, sectional shelf-unit 26, internal electrical magnet 30 and butt hook 31, sectional shelf-unit 26 is inboard by fixing internal electromagnet 30 such as nut, screws, the top of internal electrical magnet 30 penetrates magnetic core 25, and the connecting axle 27 that is installed with the band pad in the through hole on magnetic core 25 tops is fixed on the sectional shelf-unit 26; The top of sectional shelf-unit 26 is provided with by axial screw and connecting bushing 28 and is fixedly coupled sheet 29, and the top of butt hook 31 is hung in the through hole of brace 29, and its underpart is positioned in the hanging hole of connecting rod 17 by screw; The upper end of back-moving spring 16 is hung in connecting rod 17 hanging hole foremost, and its lower end is fixed on the shell of body 32; The rear end of connecting rod 17 connects the upper tool post 19 that has frame groove 20, and the rear end of upper tool post 19 is by the fixing tangential knife 24 of going up of screw, and the axis of rolling 22 passes in the trepanning of guide plate 23 and upper tool post 19, and the knife rest frame 18 of upper tool post 19 rear sides connects tangential knife 21 down by spring.After the operation of servomotor 2 drive machines, 17 motions of internal electrical magnet 30 drivening rods, the motion of connecting rod 17 is switchable to the slip of upper tool post 19, realizes automatic tangent work by last tangential knife 24 with combining of following tangential knife 21; Also can carry out scissor cutting between described tangential knife 21 down and the last tangential knife 24 by the fixed pivot that is provided with between the two.

As shown in Figure 5, the described numerical control automatic trimming overedger of the embodiment of the invention, its motor drive unit 1 comprises servomotor 2, motor fixed rack 3, servomotor 2 anterior axle heads insert in the axis hole of motor fixed rack 3, drive pulley 5 is inserted in axial end, and whole servomotor 2 is fixed on the motor fixed rack 3 by some screws 4.

Claims

1. numerical control automatic trimming overedger, comprise motor drive unit (1), presser feet lifting mechanism (6), automatic shearing mechanism (15), body (32), it is characterized in that: described presser feet lifting mechanism (6) comprises damping pad (7), electromagnet (8) and roller (14), damping pad (7) rotation set is in the top of cylindric electromagnet (8), electromagnet stent (10) is fixed in the bottom of electromagnet (8) by the screw that is with pad (11), the below of electromagnet stent (10) is provided with curved shape support (13), and roller (14) is fixed in the bottom of curved shape support (13); Described automatic shearing mechanism (15) comprises back-moving spring (16), connecting rod (17), upper tool post (19), following tangential knife (21), goes up tangential knife (24), internal electrical magnet (30) and butt hook (31), the top of internal electrical magnet (30) penetrates magnetic core (25), and the top of sectional shelf-unit (26) is provided with by axial screw and connecting bushing (28) and is fixedly coupled sheet (29); The top of butt hook (31) is hung in the through hole of brace (29), and its underpart is positioned in the hanging hole of connecting rod (17) by screw; The rear end of upper tool post (19) is fixed with tangential knife (24) by screw, and the knife rest frame (18) of upper tool post (19) rear side connects tangential knife (21) down by spring; The upper end of back-moving spring (16) is hung in connecting rod (17) hanging hole foremost, and its lower end is fixed on the shell of body (32); The rear end of described connecting rod (17) connects the upper tool post (19) that has frame groove (20), and the axis of rolling (22) passes in the trepanning of guide plate (23) and upper tool post (19).

2. numerical control automatic trimming overedger according to claim 1, it is characterized in that: described motor drive unit (1) comprises servomotor (2), motor fixed rack (3), the anterior axle head of servomotor (2) inserts in the axis hole of motor fixed rack (3), drive pulley (5) is inserted in axial end, and whole servomotor (2) is fixed on the motor fixed rack (3) by some screws (4).

3. numerical control automatic trimming overedger according to claim 1 and 2 is characterized in that: carry out scissor cutting by the fixed pivot that is provided with between the two between following tangential knife (21) and the last tangential knife (24).