CN2918476Y

CN2918476Y - Flat knitting machine draw-off mechanism

Info

Publication number: CN2918476Y
Application number: CN 200520117083
Authority: CN
Inventors: 孙平范
Original assignee: 孙平范
Current assignee: Ningbo Cixing Co Ltd
Priority date: 2005-12-08
Filing date: 2005-12-08
Publication date: 2007-07-04
Anticipated expiration: 2015-12-08

Abstract

The utility model provides a drawing mechanism for flat knitting machine, which comprises conveyor belts with opposite rotation direction and arranged face to face, a drive roll and a driven roller for driving the conveyor belt, V-shaped clearance passed by the knitted fabric between the conveyor belts arranged face to face, a rotating angle aluminum arranged under the conveyor belts and a microswitch matched with the angle aluminum. The utility model changes the point and line contact drawing mode of the metal structure to surface contact drawing, and the surface contact drawing changes the drawing force for the exertion concentration and greatly improves fiber stress state. At the same time, the material with a strong flexibility is used for the conveyor belt, such as polyurethane material, thereby further improving the fineness of the fiber surface and the natural feature maintenance of memory space.

Description

Flat traction agencies

Technical field

The utility model relates to machined needles woven garment and the ornament tractive output mechanism of knitted fabric after circle is moved back in lopping with computer flat knitting machine.

Background technology

The tractive output procedure of knitted fabric after circle is moved back in lopping, be that the knitted fabric that will form pulls out from knitting point, send after giving the fabric certain force of strain, tractive is very big to knitting cycle and product quality influence, should possess following basic demand:, should require also continuously operation of tractive motion because knitting cycle carries out continuously; The tractive tension force that acts on each coil will stablize, evenly, unanimity; Tractive amount and lopping technology in tractive tension force, unit interval are synchronous; The primary characteristic such as the smoothness that keep textile material, anti-fracture energy, fibre space elasticity.At present, at Knitting Machinery, such as computer flat knitting machine, its draw-off mechanism has various ways such as Weight type, pecten formula, roller formula, pin are brush, cam-type, their common ground is with the part of metal structure fiber to be exerted pressure, and forms metal object produces destructive power to fiber influence; 1. lopping process speed, the linear velocity of tractive component surface motion, its differential form mantle friction, make fiber surface produce vaporific even fluffing; 2. the point of metal surface, line form fiber surface local damage and the change of fibrous inside natural structure to the pressure and the frictional force of fiber, make the stretcher strain of radially spreading attenuation, length direction of fiber under its fracture strength permission situation.Friction and point, linear pressure all in various degree destruction the serviceability of fiber.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of Flat traction agencies that overcomes above-mentioned defective.For this reason, the utility model adopts following technology: it comprises in the face of opposite conveyer belt of the direction of rotation that is provided with and drive roll, the driven roll that drives conveyer belt, in the face of there being the v shape gap of passing for knitted fabric between the conveyer belt that is provided with, below conveyer belt, be provided with rotating angle aluminium, and the microswitch that cooperates with angle aluminium.The utility model is by the opposite conveyer belt group tractive output fabric of direction of rotation in the face of being provided with, point, the line contact tractive of metal structure are changed into face contact tractive, under the situation of identical traction force, face contact pulling force has changed the stress concentration phenomenon of traction force to fiber, has improved the stress of fiber significantly.Simultaneously, conveyer belt is adopted the strong material of pliability, such as polyurethane material, further improves the maintenance of natural forms such as any surface finish of fiber and memory headroom.In when, fabric taking place being transmitted the roll coil of strip and living together rotation situation when, fabric just can touch to angle aluminium, and the microswitch of angle aluminium below after being subjected to certain pressure, can touching automatically, this moment, whole system just can be sent the failure warning signal, thereby prevented the generation of unexpected job failure better.

The two ends of drive roll can be provided with the sleeve that is connected with initiative roll shaft, and sleeve is provided with two end supports, are connected with the driven roll support between two end supports, and driven roll is located on the driven roll support.The inlet two ends in described v shape gap are provided with the yarn guiding parts.Tractive effect when producing with convenient machinery installation and enhancement.

Description of drawings

Fig. 1 is a side schematic view of the present utility model, has shown the drives structure of draw-off mechanism.

Fig. 2 is the partial sectional view of draw-off mechanism, has shown the concrete structure of draw-off mechanism.

Fig. 3 is the A-A cutaway view of Fig. 2.

The specific embodiment

With reference to accompanying drawing.The utility model comprises in the face of opposite conveyer belt 17 of the direction of rotation that is provided with and drive roll 11, the driven roll 10 that drives conveyer belt, in the face of there being the v shape gap of passing for knitted fabric 22 between the conveyer belt group that is provided with, below conveyer belt, be provided with rotating angle aluminium 18, and the microswitch 5 that cooperates with angle aluminium.

With reference to accompanying drawing, the utility model drives chain 6 by motor 7 and rotates by being driven driving gear 1 by movable sprocket 4, driving gear 1 drives initiative roll shaft 3-1 and driven gear 2 respectively by the tooth engagement, driven gear 2 drives initiative roll shaft 3-2 respectively by the tooth engagement, thereby driving two drive roll opposing parallel ground rotates, and the driving transport tape rotates, and with the point of metal structure, line contact tractive is changed into face contact tractive, under the situation of identical traction force, face contact pulling force has changed the stress concentration phenomenon of traction force to fiber, has changed the stress of fiber reliably significantly.

Driving gear 1 is fixed in the right carriage 15 of sprocket wheel 4 and flat machine and drives driven gear 2 and initiative roll shaft 3-1 rotates, the two ends of initiative roll shaft are provided with the sleeve 9 that is connected with initiative roll shaft, sleeve 9 one ends are connected with initiative roll shaft, the other end is fixed in the drive roll with connecting pin 16, sleeve is provided with two end supports 19, be connected with driven roll support 12 between two end supports, driven roll is located on the driven roll support, makes the space that has kept opposing parallel between two drive rolls.

The inlet two ends in v shape gap are provided with yarn guiding parts 13, and it has also played certain guiding and control action to the fabric direction, thereby have kept original shape of fabric well.

Support bar 21 one ends are fixed in carriage, the other end and connecting axle 20 loose fit, joint angle aluminium 18 on connecting axle 20, angle aluminium needs removable revolving, when two drive roll relative motions, transport tape also rotates thereupon, when if fabric taking place being transmitted the roll coil of strip and living together rotation situation, fabric just can touch to angle aluminium, and the microswitch 5 of angle aluminium below after being subjected to certain pressure, can touching automatically, this moment, whole system just can be sent the failure warning signal, thereby prevented the generation of unexpected job failure better.

Claims

1, Flat traction agencies, it is characterized in that it comprises in the face of opposite conveyer belt of the direction of rotation that is provided with and drive roll, the driven roll that drives conveyer belt, in the face of there being the v shape gap of passing for knitted fabric between the conveyer belt that is provided with, below conveyer belt, be provided with rotating angle aluminium, and the microswitch that cooperates with angle aluminium.

2, Flat traction agencies as claimed in claim 1, the two ends that it is characterized in that drive roll are provided with the sleeve that is connected with initiative roll shaft, sleeve is provided with two end supports, is connected with the driven roll support between two end supports, and driven roll is located on the drive roll support.

3, Flat traction agencies as claimed in claim 1 is characterized in that being provided with the yarn guiding parts at the inlet two ends in described v shape gap.

4. Flat traction agencies as claimed in claim 1 is characterized in that two drive rolls by two ends, left and right sides bracket support, and by sprocket wheel and its rotation of gear driven, and under the two connection rollers of a carriage left side location-plate is installed.