CN209061472U - A four-roll coating device - Google Patents

Abstract

The utility model discloses a four-roll coating device, comprising a body, a container for holding slurry, a sizing roll for sticking the slurry in the container, and the roll surface can be attached to the roll surface of the sizing roll and Homogenizing roller that coats the glued sizing roller on the base material, and a driving device for driving the sizing roller to rotate; the homogenizing roller is movably arranged on the body to adjust the distance from the sizing roller; Both the container and the sizing roll are mounted on the body. The four-roll coating device provided in the present application adheres the slurry in the container through the sizing roller, and then transfers the adhered slurry to the homogenizing roller attached to the sizing roller. By adjusting the position of the homogenizing roller, the homogenization roller can be adjusted. The pressure between the sizing roller and the sizing roller is used to adjust the density of the slurry, and then the slurry after the coating is applied to the substrate by the homogenizing roller to complete the coating. The density of the slurry can be adjusted to meet the processing of various precision substrates.

Description

A four-roll coating device

technical field

The utility model relates to the technical field of coating, in particular to a four-roll coating device.

Background technique

Optical films are widely used in modern society. Different from ordinary protective films or tapes, optical films must be uniform in thickness, and the surface must be dust-free and less crystalline, which puts forward higher requirements for coating technology.

In the optical film coating industry, the optical film coating machine is the most commonly used film coating method. Most of the coating machines in the prior art use a slurry roller to adhere the slurry and directly coat the slurry. The resulting problem is that due to the fixed amount of the slurry stuck to the size roll, the density of the coating slurry on the film cannot be adjusted, and the optical film with various precision requirements cannot be processed.

In summary, how to provide a coating machine capable of processing optical films with various precisions is an urgent problem to be solved by those skilled in the art.

Utility model content

In view of this, the purpose of the present invention is to provide a four-roll coating device that can improve the coating precision of the substrate.

In order to achieve the above object, the utility model provides the following technical solutions:

A four-roll coating device, comprising a body, a container for holding slurry, a sizing roll for sticking the slurry in the container, a roll surface attached to the roll surface of the sizing roll, and the A homogenizing roller for coating the adhesive slurry of the sizing roller on the substrate, a driving device for driving the sizing roller to rotate; the homogenizing roller is movably arranged on the body to adjust the The distance between the sizing rolls; the container and the sizing roll are both mounted on the body.

Preferably, a coated steel roller for transferring the glued slurry of the homogenizing roller to the substrate is provided between the homogenizing roller and the substrate, and the coated steel roller is installed on the substrate. on the fuselage.

Preferably, the machine body is provided with a coating roller for pressing the substrate against the roller surface of the coating steel roller, and the coating roller is controlled and connected to the driving device.

Preferably, an adjusting device for adjusting the tension force of the base material is also provided on the body.

Preferably, a tension detection device for detecting the tension force of the base material is also provided on the body.

Preferably, the body is provided with a lever for adjusting the position of the coating roller, the coating roller is mounted on one end of the lever, and the other end of the lever is provided with a first air cylinder, the first The air cylinder is used to push the other end of the lever to move, so that the coating roller can press the substrate against the coating steel roller.

Preferably, the body is provided with a second air cylinder, the cylinder of the second air cylinder is mounted on the body, and the push rod of the second air cylinder is connected to the homogenizing roller for pushing the The homogenizing roll moves up and down to adjust the pressure with the sizing roll.

Preferably, the container is mounted on a manually adjustable lifting device mounted on the fuselage.

The four-roll coating device provided in the present application adheres the slurry in the container through the sizing roller, and then transfers the adhered slurry to the homogenizing roller attached to the sizing roller. By adjusting the position of the homogenizing roller, the homogenization roller can be adjusted. The pressure between the sizing roller and the sizing roller is used to adjust the density of the slurry, and then the slurry after the coating is applied to the substrate by the homogenizing roller to complete the coating. The density of the slurry can be adjusted to meet the processing of various precision substrates.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description It is only an embodiment of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained according to the provided drawings without creative efforts.

1 is a cross-sectional view of the four-roll coating device provided by the utility model when coating rollers are not installed;

Fig. 2 is the sectional view of the four-roll coating device provided by the utility model when working;

3 is a cross-sectional view of the adjusting mechanism of the homogenizing roller in the four-roll coating device provided by the utility model.

In Figure 1-3:

1- Screw, 2- Turntable, 3- Gear, 4- Pallet, 5- Container, 6- Sizing roller, 7- Homogenizing roller, 8- Guide plate, 9- Body, 10- Coating steel roller, 11-coating roller, 12-first cylinder, 13-lever, 14-lock bolt, 15-baffle plate, 16-base material, 17-adjustment device, 18-tension detection device, 19-second cylinder, 20 -Connecting rod, 21-Connecting block, 22-Adjusting screw, 23-Limiting screw.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The core of the utility model is to provide a four-roll coating device which can improve the coating precision of the substrate.

Please refer to Fig. 1 and Fig. 2, Fig. 1 is a sectional view of the four-roll coating device provided by the utility model when the coating roller is not installed; Fig. 2 is a sectional view of the four-roll coating device provided by the utility model when working .

A four-roll coating device, comprising a body 9, a container 5 for holding the slurry, a sizing roll 6 for sticking the slurry in the container 5, the roll surface is attached to the roll surface of the sizing roll 6 and The slurry adhered by the sizing roller 6 is applied to the homogenizing roller 7 on the base material 16, and the driving device for driving the sizing roller 6 to rotate; the homogenizing roller 7 is movably arranged on the body 9 to adjust the The distance between the 6; the container 5 and the sizing roller 6 are installed on the body 9.

It should be noted that the container 5 can take various forms. Specifically, a groove shape with an opening can be selected. The opening should be as large as possible. It should be noted that no matter what shape is used, the selection of the shape needs to cooperate with the structure of the sizing roller 6 responsible for the sizing, so that the sizing roller 6 can enter the slurry contained in the container 5, and ensure smooth operation. Roll so that the paste will stick.

The sizing roller 6 is a cylindrical rotatable machine part, which is provided with support shafts for supporting the roller body of the sizing roller 6 along its axial center. Rotation is performed to stick the slurry, and the support shafts at both ends can be installed with bearings and other devices to reduce the frictional resistance received during the rotation process; the driving device is controlled and connected to the sizing roller 6 to provide driving force for the sizing roller 6, and the driving device is preferably The electric motor can also use other forms of driving devices, such as a hydraulic motor or a pneumatic motor, etc., as long as it is a device that can drive the sizing roller 6 to rotate, it is included in the protection scope of the present application.

The homogenizing roller 7 is movably installed on the fuselage 9. By adjusting the position of the homogenizing roller 7 on the fuselage 9, the distance between the sizing roller 6 and the homogenizing roller 7 can be adjusted to adjust the adhesion of the homogenizing roller 7. The amount of slurry is then applied to the substrate 16 to complete the coating.

The four-roll coating device provided in the present application adheres the slurry in the container 5 through the sizing roller 6, and then transfers the adhered slurry to the homogenizing roller 7 attached to the sizing roller 6. By adjusting the size of the homogenizing roller 7 position, the pressure between the homogenizing roller 7 and the sizing roller 6 can be adjusted to adjust the slurry density, and then the homogenizing roller 7 applies the coated slurry to the substrate 16 to complete the coating. The movable homogenizing roller 7 can adjust the density of the slurry, so as to meet the processing of the substrate 16 with various precision requirements.

On the basis of the above embodiment, a material guide plate 8 can be added, and the material guide plate 8 is connected to the container 5, and its function is to catch the above-mentioned slurry-adhering device due to gravity in the process of transferring the slurry. The slurry of the device is generally arranged below the device to which the slurry is adhered.

Preferably, the sizing roller 6 is arranged at a lower position, a homogenizing roller 7 is movably arranged above the sizing roller 6, and a material guide plate 8 is connected to one end of the container 5, and the material guide plate 8 and the container 5 are in a top view. The covered area is slightly larger than the area covered by the homogenizing roller 7 and the sizing roller 6, and the material guide plate 8 is below the homogenizing roller 7. use.

Optionally, the bottom area of the container 5 can also be increased, so that the area covered by it in a plan view is slightly larger than the area covered by the coating roller 11, the homogenizing roller 7 and the sizing roller 6, and then vertically on the side thereof. The material guide plate 8 is provided to prevent the slurry from being thrown out along the tangential direction of the device during the rotation of the device sticking to the slurry, but this method uses more materials to process the container 5 and increases the cost.

In this embodiment, by adding a material guide plate 8, the part of the slurry that is detached during the conveying process can be collected and reused, thereby saving the use cost of the slurry.

On the basis of the above-mentioned embodiment, a coating steel roll 10 for transferring the adhered slurry of the homogenizing roll 7 to the base material 16 is provided between the homogenizing roll 7 and the base material 16 , and the coating steel roll 10 is installed on the on the fuselage 9.

It should be noted that, in the above embodiment, a single roll can be set for slurry transfer, that is, the homogenizing roll 7 is attached to the sizing roll 6 for slurry transfer, and the amount of the glued slurry on the sizing roll 6 is adjusted. On the basis of setting the homogenizing roller 7, a coating steel roller 10 is added to further adjust the slurry, that is, another coating steel roller 10 is arranged above the homogenizing roller 7, and the homogenizing roller 7 can be moved to fit The slurry is further transferred at the position of the coating steel roll 10 . At this time, the roll responsible for coating is the coating steel roll 10 , and the amount of the slurry transferred can be controlled by adjusting the position of the homogenizing roll 7 .

In this embodiment, on the basis of the above-mentioned embodiment, the structure of the homogenizing roller 7 and the coating steel roller 10 that can double adjust the slurry is set on the route of the slurry transmission, so that the substrate 16 can be carried on the fixed roller. Coating, stabilizes the direction of slurry coating.

On the basis of the above-mentioned embodiment, the body 9 is movably provided with a coating roller 11 for pressing the substrate 16 on the roller surface of the coating steel roller 10, and the coating roller 11 is movably arranged on the body 9, the coating roller 11 is controlled and connected by a driving device.

The coating roller 11 is installed on the body 9, and the installation position can be adjusted manually. The lower surface of the coating roller 11 is attached to the substrate 16, and the substrate 16 can be pressed against the roller of the coating steel roller 10. The coating is completed on the surface; the coating roller 11 is a driving roller, which is controlled and connected by a driving device. The coating roller 11 can rotate around its own axis to drive the substrate 16 to move.

The purpose of disposing the coating roller 11 is to adjust the pressing force between the substrate 16 and the coating steel roller 10 , so that the pressing force between the substrate 16 and the coating steel roller 10 can be increased, thereby adjusting different substrates 16 The coating density of the required slurry can meet the required precision after coating of different substrates 16 .

On the basis of the above-mentioned embodiment, an adjusting device 17 for adjusting the tension force of the base material 16 may also be provided on the body 9 .

It should be noted that the adjusting device 17 includes adjusting rollers for guiding the base material 16 , bearings are installed at both ends of the adjusting rollers, and the bearings are moved by the push screws arranged on the body 9 , thereby driving the adjusting rollers to move , preferably, the setting position can be selected as the position between the substrate 16 to be coated after entering from the feed port to the roller surface of the coating roller 11, because during the movement of the substrate 16, by adjusting the adjusting device 17 The position of the adjusting roller can move left and right in the side view, so as to tension the substrate 16 and make the coating of the substrate 16 more precise.

On the basis of the above embodiment, a tension detection device 18 for detecting the tension force of the base material 16 may also be provided on the body 9 .

It should be noted that the tension detection device 18 is arranged on the transmission line of the base material 16 and has a certain supporting force for the base material 16. The tension detection device 18 is composed of a tension sensor and a tensioning wheel. The base material 16 passes through the tensioning wheel. Apply pressure, the tension wheel will transmit the pressure to the tension sensor, so as to detect the tension force of the substrate 16, a display screen can be set on the body 9 to display the tension force detected by the tension sensor, and can be adjusted with the adjustment device. 17 is used together, that is, the tension force displayed by the tension sensor is used to control the tension force of the adjusting device 17.

On the basis of the above embodiment, the body 9 is provided with a lever 13 for adjusting the position of the coating roller 11, the coating roller 11 is mounted on one end of the lever 13, and the other end of the lever 13 is provided with a first air cylinder 12, the first The cylinder 12 is used to push the other end of the lever 13 to move, so that the coating roller 11 can press the substrate 16 on the coating steel roller 10 .

It should be noted that, the coating roller 11 can be installed on one end of the lever 13 in various ways. Preferably, one end of the lever 13 is processed with a first U-shaped groove for installing one end of the coating roller 11, so that the coating roller 11 After installation, it can rotate along the axis of the coating roller 11 itself; a baffle 15 is movably installed at one end of the opening of the first U-shaped groove, and the length of the baffle 15 can be the same as the width of the two ends of the first U-shaped groove. Equally, when the other end of the baffle 15 is moved to the upper end of the first U-shaped groove, it can block the opening of the first U-shaped groove, and after the baffle 15 closes the opening, the coating roller 11 can only move along its own axis. Heart turns.

A locking bolt 14 for locking the baffle plate 15 is installed near the upper end of the opening of the first U-shaped groove. The locking bolt 14 can rotate around its end installed on the first U-shaped groove. The other end of 14 is machined with an external thread, and a knob is installed on the external thread.

The other end of the baffle plate 15 is machined with a second U-shaped groove that is adapted to the locking bolt 14, so that the locking bolt 14 can rotate around it and the end mounted on the first U-shaped groove to the second U-shaped groove. in the groove.

The specific installation method is to rotate the baffle 15 until the first U-shaped groove is opened, install one end of the coating roller 11 in the first U-shaped groove, and rotate the baffle 15 to the upper end of the first U-shaped groove. Block the opening of the first U-shaped groove, at this time, rotate the locking bolt 14, so that the locking bolt 14 rotates around it and the end installed on the first U-shaped groove into the second U-shaped groove, and rotates Turn the knob, so that the knob and the bolt can produce a corresponding pressing force on the baffle 15, so that the baffle 15 is pressed against the upper end of the first U-shaped groove, thereby locking the coating roller 11.

Optionally, the baffle plate 15 can be set to be fixed to both ends of the first U-shaped groove by two-end mounting bolts so as to close the opening of the first U-shaped groove, but the disassembly and assembly are more complicated than the above method.

The other end of the lever 13 can be pushed by the first air cylinder 12 to control the position of the coating roller 11 , so that the coating roller 11 can press and separate the substrate 16 to be coated on the coating steel roller 10 .

In this embodiment, by setting the cylinder to push the lever 13, the coating roller 11 can press and separate the substrate to be coated 16 on the coating steel roller 10. By controlling the pressure of the cylinder, the coating roller 11 and the coating steel roller can be The distance between 10 is adjusted, thereby adjusting the pressing force of the coating roller 11 to press the substrate 16 to be coated on the coating steel roller 10, thereby adjusting the coating accuracy of the substrate 16.

On the basis of the above embodiment, the second cylinder 19 is provided on the body 9, the cylinder of the second cylinder 19 is mounted on the body 9, and the push rod of the second cylinder 19 is connected to the homogenizing roller 7 for Push the homogenizing roller 7 to move up and down to adjust the pressure with the sizing roller 6 .

Please refer to FIG. 3 , which is a cross-sectional view of the adjusting mechanism of the homogenizing roller 7 in the four-roll coating device provided by the utility model.

It should be noted that, in the working process of the four-roll coating device, the homogenizing roller 7 is attached to the sizing roller 6 and the coating steel roller 10. In this embodiment, the homogenizing roller 7 is set as a movable device, that is, by adjusting The mechanism adjusts the position of the homogenizing roller 7 so as to adjust the pressing force between the homogenizing roller 7 , the sizing roller 6 and the coating steel roller 10 .

Preferably, the adjustment mechanism can be specifically configured as a second cylinder 19 for rough adjustment and an adjustment screw 22 for fine adjustment, the second cylinder 19 is connected to the connecting rod 20 to increase the stroke, and the other end of the connecting rod 20 is installed with a connecting block 21 is used to connect the homogenizing roller 7, the second cylinder 19 is set in the same direction as the straight line that is in contact with the sizing roller 6 and the coating steel roller 10 at the same time when the direction of the second air cylinder 19 moves with the homogenizing roller 7 is the same linear direction, which can make the first The two air cylinders 19 can adjust the pressing force between the homogenizing roller 7 , the sizing roller 6 and the coating steel roller 10 by only stretching and compressing by itself.

The axis of the adjusting screw 22 is the same straight line as the axis of the second cylinder 19. Bearings are installed at the positions where the two ends of the homogenizing roller 7 are mounted on the body 9. By rotating the adjusting screw 22, the lower end of the adjusting screw 22 is adjusted. The position pushes the bearing, so as to fine-tune the pressing force between the homogenizing roller 7, the sizing roller 6 and the coating steel roller 10, and finally the limit screw 23 locks the final position of the mechanism.

In this embodiment, the adjusting mechanism is provided on the homogenizing roller 7 to adjust the pressing force between the homogenizing roller 7 and the sizing roller 6 and the coating steel roller 10, because the density of the slurry is determined by the pressing force between the rollers. Therefore, the density of the slurry can be adjusted by this adjusting mechanism, so as to adapt to the coating density of different substrates 16 .

On the basis of the above embodiment, the container 5 is mounted on a manually adjustable lifting device, and the lifting device is mounted on the body 9 .

It should be noted that the movable setting direction of the container 5 can be vertical, and the purpose of the vertical setting is to prevent the slurry adhered by the four-roll coating device from falling to other positions during the movement of the container 5 .

The specific setting method is as follows: a T-shaped pallet 4 that can move up and down is arranged at the bottom of the container 5 , the lower end of the pallet 4 is machined with threads, and the body 9 is installed with threads matching the threads on the pallet 4 The gear 3 has two toothed discs of different sizes, preferably a small toothed plate is used to mesh with the thread below the T-shaped support plate 4 to form a worm gear and worm structure.

Another screw 1 is arranged below the large toothed plate, and the screw 1 can reduce the friction generated during the rotation by installing a bearing; the middle of the screw 1 is processed with a thread that meshes with the large toothed plate, forming another worm gear and worm structure. One end of the screw 1 can be a free end that moves along the axis of the screw 1, the other end of the screw 1 extends out of the front of the fuselage 9, and a turntable 2 for rotating the screw 1 is installed at the end.

The specific operation method is that the rotating turntable 2 drives the screw 1 to rotate, the screw 1 drives the large toothed plate to rotate through rotation, and at the same time, the small toothed plate integrated with the large toothed plate rotates concentrically with the large toothed plate, thereby driving the pallet 4 to move up and down, The purpose of driving the container 5 is achieved.

In this embodiment, by movably setting the container 5 on the body 9, the supply of the slurry can be started or terminated at any time by adjusting the position between the container 5 and the sizing roll 6, or the container 5 The depth of the inner slurry becomes shallower, and the position between the container 5 and the sizing roll 6 can be adjusted to make more full use of the remaining slurry, thereby saving costs.

The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other.

The four-roll coating device provided by the present utility model has been described in detail above. The principles and implementations of the present invention are described herein by using specific examples, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principles of the present utility model, some improvements and modifications can also be made to the present utility model, and these improvements and modifications also fall into the protection of the claims of the present utility model. within the range.

Claims (8)

1. A four-roll coating device, characterized in that it comprises a body (9), a container (5) for holding slurry, and a sizing roller (5) for sticking the slurry in the container (5). 6), a homogenizing roller (7) whose roller surface is attached to the roller surface of the sizing roller (6) and the slurry adhered by the sizing roller (6) is applied to the substrate (16), used for a drive device for driving the sizing roller (6) to rotate; The homogenizing roller (7) is movably arranged on the body (9) to adjust the distance from the sizing roller (6); The container (5) and the sizing roller (6) are both mounted on the body (9). 2 . The four-roll coating device according to claim 1 , characterized in that, between the homogenizing roller ( 7 ) and the base material ( 16 ), a device for adhering the homogenizing roller ( 7 ) is provided. 3 . The slurry is transferred to a coated steel roll (10) on the substrate (16), the coated steel roll (10) being mounted on the body (9). 3. The four-roll coating device according to claim 2, characterized in that, the body (9) is movably provided with a roller for pressing the substrate (16) against the coating steel roller The coating roller (11) on the roller surface of (10), the coating roller (11) is controlled and connected to the driving device. 4. The four-roll coating device according to claim 3, characterized in that, the body (9) is further provided with an adjusting device (17) for adjusting the tension of the substrate (16). 5 . The four-roll coating device according to claim 4 , wherein a tension detection device ( 18 ) for detecting the tension force of the base material ( 16 ) is further provided on the body ( 9 ). 6 . 6 . The four-roll coating device according to claim 5 , wherein a lever ( 13 ) for adjusting the position of the coating roller ( 11 ) is provided on the body ( 9 ), and the coating A roller (11) is mounted on one end of the lever (13), and the other end of the lever (13) is provided with a first air cylinder (12), the first air cylinder (12) is used to push the lever (13) The other end of the roller is moved so that the coating roller (11) presses the substrate (16) on the coating steel roller (10). 7. The four-roll coating device according to any one of claims 1 to 6, wherein a second air cylinder (19) is provided on the body (9), and the second air cylinder (19) has a The cylinder is mounted on the body (9), and the push rod of the second cylinder (19) is connected to the homogenizing roller (7) for pushing the homogenizing roller (7) to move up and down to Adjust the pressure with the sizing roll (6). 8 . The four-roll coating device according to claim 7 , wherein the container ( 5 ) is mounted on a manually adjustable lifting device, and the lifting device is mounted on the body ( 9 ). 9 .