CN202284092U - Self-propelled guide roller for optical film detection machine - Google Patents

Abstract

The utility model discloses a self-propelled guide roller for an optical film detection machine. A steel guide roller is arranged at a large wrap angle of a frame; a chromium layer covers the surface of the guide roller; the guide roller is arranged on the frame through a small aligning ball bearing and an adjustable bearing seat and is driven by a small alternating current torque motor through a gear; when the output torque of the motor is adjusted, the self-propelled guide roller can be in a zero-resistance positive rotation critical state and is low in starting torque, so that low and uniform external tension is easy to ensure when an optical film moves; the hard chromium layer covers the surface of the steel guide roller, and the small aligning ball bearing is used, so that high form and position tolerance accuracy is ensured, the guide roller is high in surface finish and hardness, the film is prevented from being corrugated, and the coating or plating of the film is prevented from being damaged; and the chromium-plated layer is conductive, and static electricity of the film can be quickly released through the guide roller, so that static electricity interference is eliminated, safe production is facilitated, and product yield is improved.

Description

A kind of deflector roll voluntarily of blooming machines

Technical field

The utility model relates to the deflector roll that guides film movement, particularly makes coating machine, coating machine, the compounding machine of blooming, or the deflector roll that uses on the machines.

Background technology

Be used to make the blooming of photoelectric devices such as liquid crystal display, solar cell, just possibly produce the flaw that naked eyes are difficult to observe in the film-forming process, like bubble, cut, striated hickie, impurity and spot etc.The flaw of film will influence its photoelectric property.Thereby the film of processing need detect film with machine vision automatically through online machines.

Deflector roll is that quantity at most in the blooming Fabricating machinery, part the widest, that have the greatest impact distributes.The useful steel of deflector roll, the deflector roll working accuracy of steel is high, but rotor inertia is big, is difficult to when promptly starting in short-term, reach the rotating speed that is complementary with the film moving velocity, thus make the inhomogeneous or outer overtension of the tension force of film in motion process.Tension force is inhomogeneous can to destroy accuracy of detection.Outer overtension possibly cause film wrinkling or the stretching set up stresses is excessive, makes the machinery of fracture of film coating or coating microstructure and layering cause damage, causes the inefficacy of optics and electric conductivity.

For solving the big problem of steel deflector roll inertia, the deflector roll that existing multiple blooming machines adopts aluminum alloy to process.The aluminum alloy deflector roll is prone to cutting, and inertia is little, can obviously improve the problem of outer overtension.

But aluminum alloy can not grinding, even meticulous turning also can stay the tool marks of finish turning in guide roller surface.The surface has the aluminum alloy deflector roll friction drag of trickle tool marks bigger, can hinder the axial slip of film on deflector roll, can make film produce longitudinal wrinkles because of the film transverse slip is obstructed.The cornerite of film on deflector roll is big more, and the deflector roll form and position tolerance is big more, and this effect is just obvious more.The aluminum alloy deflector roll through anodic oxidation treatment, is formed the abrasion resistant cementation zone and can reduce friction coefficient.But this hardened layer is non-conductive, and the static that film surface produces during work is difficult to discharge, and when film surface savings higher pressure static, its dust suction effect can be polluted film and increase reject rate.The electrostatic interference detecting sensor, and jeopardize production safety.

Summary of the invention

The deflector roll voluntarily that the utility model is intended to provide a kind ofly makes that film is smooth and easy in the motion of big cornerite position, even tension and the blooming machines that do not crease easily are used.

The deflector roll voluntarily of the described blooming machines of the utility model; The steel deflector roll is installed on the position of the big cornerite of frame film; Guide roller surface covers the chromium layer, and deflector roll is installed on the frame through small-sized aligning ball bearing of main shaft, adjustable shaft bearing, has small-sized alternating current torque motor to drive deflector roll.

The deflector roll voluntarily of the described blooming machines of the utility model through gear drive steel deflector roll, is adjusted the output torque of motor by small-sized alternating current torque motor, and deflector roll can be in the just commentaries on classics critical conditions of zero resistance voluntarily.When film advanced with manufacturing line main gear speed, deflector roll was because of the servo rotation of torque motor characteristic voluntarily, thereby detent torque is very little, was prone to guarantee that tension force is little and even outside blooming is when the motion of big cornerite position.Especially, electroplated hard chromium layers in the steel guide roller surface, behind detailed manufactures such as peripheral milling; And use small-sized aligning ball bearing of main shaft, can be in level, vertically and axially accurately adjust the deflector roll position with screw thread, guarantee to have higher form and position tolerance precision; Guide roller surface has high degree of finish and hardness, has reduced friction coefficient, helps the relative deflector roll transverse slip of film; Can import effectively, directed and flatten film, prevent wrinkle, avoid damaging the coating or the coating of film; In addition, the deflector roll chromium coating can conduct electricity, as long as good with deflector roll bonded assembly frame grounding, during work film with static can discharge rapidly through deflector roll, remove the qualification rate that electrostatic interference helps keeping the safety in production and improves product.

Description of drawings

Fig. 1 is deflector roll installation site scheme drawing on the blooming machines voluntarily.

Fig. 2 is the cross-sectional schematic of deflector roll voluntarily.

The specific embodiment

A plurality of deflector rolls voluntarily 2 are installed on the frame 1, and frame answers ground connection good.Deflector roll is a steel voluntarily, deflector roll 2 surface coverage chromium layers 3.By having small-sized aligning ball bearing of main shaft 4 and 5 supportings of adjustable shaft bearing, small-sized alternating current torque motor 6 drives the steel deflector roll through gear 7.

Claims (1)

1. the deflector roll voluntarily of a blooming machines; Go up installation steel deflector roll (2) in frame (1); It is characterized in that: deflector roll (2) surface coverage chromium layer (3); Deflector roll is installed on the frame (1) through small-sized aligning ball bearing of main shaft (4), adjustable shaft bearing (5), has small-sized alternating current torque motor (6) to drive deflector roll (2).

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