CN105970180A - Deviation-correcting unwinding mechanism of film coating machine - Google Patents

Abstract

The invention relates to a deviation-correcting unwinding mechanism of a film coating machine. The deviation-correcting unwinding mechanism comprises a semi-circular bearing seat, a bearing base, sliding block fixing plates, an intermediate supporting plate, a lead screw, a worm-gear pair, a deviation-correcting shaft sleeve and a motor, wherein the semi-circular bearing seat used for placing of an inflatable shaft equipped with a bearing is mounted above the bearing base; the lower part of the bearing base is in sliding connection with guide rails on the intermediate supporting plate through the sliding block fixing plates; the sliding block fixing plates are combined with the guide rails to form a horizontal sliding pair, so that the inflatable shaft can slide left and right along the guide rails; the deviation-correcting shaft sleeve is fixedly connected with the lower part of the bearing base, and connected with the lead screw to form a spiral pair; the lead screw is connected with the motor through the worm-gear pair; and the lead screw is driven by the motor to rotate and move the deviation-correcting shaft sleeve left and right, so that the inflatable shaft can be driven to move left and right, the inflatable shaft can be regulated for various-length winding, and the shaft end of the inflatable shaft can be parallel to that of an unwinding-spreading roller. By adoption of the deviation-correcting unwinding mechanism provided by the invention, the spreading effect of the unwinding-spreading roller can be enhanced, and the phenomena of wrinkling, trimming and the like during a film coating process can be effectively avoided, thereby improving the film coating quality.

Description

Coating machine unwinding mechanism that can be corrected

technical field

The invention relates to an unwinding mechanism of a vacuum coating machine, in particular to an unwinding mechanism of a coating machine capable of automatic deviation correction.

Background technique

As a key component of the vacuum coating machine, the unwinding mechanism plays a key role in unwinding and flattening. This directly affects factors such as the quality and efficiency of the coating. The unwinding mechanism of the traditional coating machine is relatively simple, which cannot achieve the effect of deviation correction. After unwinding, it is easy to wrinkle during the flattening process and the coating quality is not high.

Contents of the invention

The purpose of the present invention is to overcome the above-mentioned shortcoming of prior art, and provide a kind of simple and effective coating machine unwinding mechanism that can rectify, and this mechanism can set the coating machine unwinding mechanism according to the length of film, winding uniformity The correction displacement is used to improve the stability and effectiveness of unwinding and flattening.

To achieve the above object, the technical scheme adopted in the present invention is as follows:

An unwinding mechanism of a coating machine capable of correcting deflection, comprising a semicircular bearing seat, a bearing base, a slider fixing plate, an intermediate support plate, a lead screw, a worm gear pair, a deflection correcting bushing, and a motor, and the bearing base is equipped with a Place the semi-circular bearing seat of the air shaft with bearings, the bottom of the bearing base is slidingly connected with the guide rail on the middle support plate through the slider fixing plate, the slider fixing plate and the guide rail form a horizontal sliding pair, so that the air shaft can move along the guide rail Sliding left and right, the bearing base is fixedly connected with the correcting bushing, and the correcting bushing is connected with the lead screw to form a screw pair, and the lead screw is connected to the motor through the worm gear pair, and the motor is decelerated by the worm gear pair to drive the screw to rotate, so that the correcting bushing moves left and right. Thereby driving the air shaft to move left and right, realizing the adjustment of the air shaft wound with different lengths, so that the shaft end of the air shaft is parallel to the shaft end of the unwinding and flattening roller.

The deviation-correcting bushing is connected to a displacement sensor through a connecting rod, and the displacement sensor accurately measures the left-right moving distance of the deviation-correcting bushing to determine a deviation-correcting value.

The deviation-correcting bushing is connected with the bearing base through threads.

The semicircular bearing seat fixes and locks the air shaft with the bearing through the lock nut, which is used for the radial positioning of the bearing. There is a limit gasket between the semicircular bearing seat and the bearing, and the bearing is fixed by the limit gasket. The axial limit is used to ensure the stability of the air shaft running at high speed.

The two sides below the middle support plate are respectively connected to the lower support plate; the upper support plate is fixedly connected between the bearing base and the semicircular bearing seat, which is used to support and fix the semicircular bearing seat to ensure the high-speed operation. smoothness.

The semi-circular bearing seat, intermediate support plate, deviation-correcting shaft sleeve, upper and lower support plates are processed from aluminum, and the heat dissipation characteristics of aluminum are used to ensure the coating quality.

The beneficial effects of the present invention are:

The present invention adopts the worm gear pair as the decelerating device to connect with the output shaft of the motor, one end of the lead screw is connected with the worm wheel in the worm gear pair, and the other end is connected with the deviation correcting bushing, thereby realizing the left and right sliding of the deviation correcting bushing. To achieve the corrective effect. The displacement sensor and the rectifying shaft sleeve are connected through a connecting rod, which can accurately calculate the left and right moving distance. The bearing of the air expansion shaft is located in the bearing seat, the axial limit is carried out by the limit gasket, and the radial limit is carried out by the lock nut to prevent axial and radial runout. In this way, the unwinding air shaft achieves a deviation-correcting effect. The unwinding mechanism of the coating machine which can be corrected can enhance the flattening effect of the unwinding and flattening roller, and effectively prevents wrinkles and flashes during the coating process. Thereby improving the coating quality.

The advantage of the present invention is that the deviation correcting device of the unwinding mechanism is simple in structure, easy to operate, and can be adjusted according to the length of different shafts and the length of the coating, so that the coating process is more stable and reliable, and the quality and efficiency of the coating are guaranteed.

Description of drawings

Fig. 1 is a schematic diagram of an unwinding mechanism of a coating machine capable of correcting deviation of the present invention;

Fig. 2 is a schematic diagram of a deceleration mechanism and a sensor of an unwinding mechanism of a coating machine capable of correcting deflection according to the present invention.

specific implementation plan

The best implementation of the present invention will be further described in detail below in conjunction with the accompanying drawings.

As shown in Figures 1 and 2, the unwinding mechanism of the coating machine that can correct the deviation of the present invention includes a lock nut 1, a semicircular bearing seat 2, a limit washer 3, a bearing base 4, a slider fixing plate 5, and an intermediate support Plate 6, lower support plate 7, displacement sensor 8, connecting rod 9, leading screw 10, worm gear pair 11, deviation correcting axle sleeve 12, upper support plate 13, motor 14.

The bearing base 4 is equipped with a semicircular bearing seat 2 for placing the air expansion shaft with bearings. The bearing base 4 is slidingly connected with the guide rail on the intermediate support plate 6 through the slider fixing plate 5, and the slider fixing plate 5 is connected to the guide rail. Constitute a horizontal sliding pair, so that the air expansion shaft can slide left and right along the guide rail. The deviation-correcting bushing 12 is fixedly connected to the bottom of the bearing base 4. The deviation-correcting bushing 12 is connected with the lead screw 10 to form a screw pair. The lead screw 10 is connected to the motor 14 through the worm gear pair 11 , the motor 14 drives the lead screw 10 to rotate through the deceleration of the worm gear pair 11 to make the deviation correction bushing 12 move left and right, thereby driving the air shaft to move left and right, so as to realize the adjustment of the air shaft wound with different lengths, so that the shaft end of the air shaft Parallel to the shaft end of the unwinding and flattening roller. The deviation-correcting bushing 12 is connected to the displacement sensor 8 through the connecting rod 9, and the left-right moving distance of the deviation-correcting bushing 12 is accurately measured by the displacement sensor 8 to determine the deviation-correcting value. The deviation-correcting axle sleeve 12 is connected with the bearing base 4 by threads. The semicircular bearing seat 2 fixes and locks the air shaft with the bearing through the lock nut 1, which is used for the radial positioning of the bearing. There is a limit washer 3 between the semicircular bearing seat 2 and the bearing. 3 pairs of axial limit bearings are used to ensure the stability of the air shaft at high speed. The two sides below the middle support plate 6 are respectively connected to the lower support plate 7; the upper support plate 13 is fixedly connected between the bearing base 4 and the semicircular bearing seat 2, which is used to support and fix the semicircular bearing seat 2 to ensure high-speed operation The stability in . The semicircular bearing seat 2, the middle support plate 6, the deviation-correcting shaft sleeve 12, the upper and lower support plates 13, 7 are made of aluminum, and the heat dissipation characteristics of the aluminum are used to ensure the coating quality.

Put the air expansion shaft with the bearing on the bearing seat 2, lock the semicircular bearing seat 2 with the lock nut 1 to prevent radial runout, and limit the axial movement of the bearing by the limit washer 3. The slider fixing plate 5 and the guide rail constitute a horizontal sliding pair, which can make the shaft slide left and right. The worm gear pair 11 is connected with the motor 14, and the motor 14 transmits power and rotates to drive the worm gear pair 11 to move, and the transmission ratio of the worm gear pair 11 achieves a deceleration effect. The rotation of the worm wheel drives the leading screw 10, and the leading screw 10 and the deviation-correcting axle sleeve 12 form a helical pair. The rotation of leading screw 10 makes deviation correcting axle sleeve 12 can slide left and right. The deviation-correcting bushing 12 and the bearing base 4 form a whole through threaded connection, and the horizontal movement of the deviation-correcting bushing 12 drives the movement of the bearing base 4, thereby driving the movement of the air expansion shaft. The deviation-correcting shaft sleeve 12 is connected with the displacement sensor 8 through a connecting rod 9, and the movement of the deviation-correcting shaft sleeve 12 can be accurately measured by the displacement sensor 8. Winding air shafts with different lengths can be adjusted so that the shaft end of the air shaft is parallel to the shaft end of the unwinding and flattening roller, which is conducive to unwinding and flattening, thereby improving the coating rate and quality.

In order to achieve the correcting effect, the following steps are adopted:

Step 1: Put the air shaft equipped with bearings into the semicircular bearing seat 2 of the active and driven deflection-correctable unwinding mechanism of the coating machine, and fix the bearing through the lock nut 1.

Step 2: Adjust it according to the length of the air shaft and the length of the required membrane. Make the unwinding device parallel to the shaft end of the unwinding and flattening roller, which is beneficial to the flattening of the film.

Step 3: Adjust left and right on the control panel to find a suitable value, and record the value output by the displacement sensor at this time. And fix this value, start the spindle motor for coating.

Claims (6)

1. A coating machine unwinding mechanism capable of correcting deflection, including a semicircular bearing seat (2), a bearing base (4), a slider fixing plate (5), an intermediate support plate (6), a lead screw (10), a worm gear The worm pair (11), the deviation-correcting bushing (12), and the motor (14), are characterized in that: the bearing base (4) is provided with a semi-circular bearing seat (2) for placing an inflatable shaft with bearings, The bottom of the bearing base (4) is slidingly connected with the guide rail on the middle support plate (6) through the slider fixing plate (5), and the slider fixing plate (5) and the guide rail form a horizontal sliding pair, so that the air expansion shaft can slide left and right along the guide rail , the bearing base (4) is fixedly connected with the deviation-correcting bushing (12), the deviation-correcting bushing (12) is connected with the lead screw (10) to form a screw pair, and the lead screw (10) is connected to the motor (14) through the worm gear pair (11) The motor (14) is decelerated by the worm gear pair (11) to drive the lead screw (10) to rotate to make the deviation-correcting sleeve (12) move left and right, thereby driving the air shaft to move left and right, so as to realize the adjustment of the air shafts wound with different lengths. Adjust to make the shaft end of the air expansion shaft parallel to the shaft end of the unwinding and flattening roller. 2. The unwinding mechanism of the coating machine capable of correcting deviation according to claim 1, characterized in that: the deviation correcting bushing (12) is connected to the displacement sensor (8) through the connecting rod (9), and the displacement sensor (8) is used to accurately Measure the left and right moving distance of the deviation-correction axle sleeve (12), and determine the deviation-correction value. 3. The unwinding mechanism of a coating machine capable of correcting deviation according to claim 1, characterized in that: the deviation correcting bushing (12) is connected to the bearing base (4) through threads. 4. The unwinding mechanism of a coating machine capable of correcting deviation according to claim 1, characterized in that: the semicircular bearing seat (2) fixes and locks the air shaft with the bearing through the lock nut (1), and uses For the radial positioning of the bearing, a limit washer (3) is provided between the semicircular bearing seat (2) and the bearing, and the axial limit of the bearing is limited by the limit washer (3), which is used to ensure that the air expansion shaft operates at high speed. smooth running. 5. The unwinding mechanism of the correctable deviation coating machine according to claim 1, characterized in that: the two sides below the middle support plate (6) are respectively connected to the lower support plate (7); the bearing base (4) is connected to the semicircle An upper support plate (13) is fixedly connected between the semicircular bearing seats (2), which are used to support and fix the semicircular bearing seats (2) to ensure stability in high-speed operation. 6. The film machine unwinding mechanism capable of correcting deviation coating according to claim 5, characterized in that: the semicircular bearing seat (2), the middle support plate (6), the deviation correcting bushing (12), the upper and lower The support plates (13, 7) are processed from aluminum, and the heat dissipation characteristics of aluminum are used to ensure the coating quality.