KR20180082774A - A coating machine having sensors for sensing input and output of an object, and a control method of the same - Google Patents

Abstract

The present invention relates to a coating machine and a method of controlling the same, and more specifically, to a coating machine including sensors capable of sensing injection and discharge of a coating object; and a method of controlling the coating machine. An objective of the present invention is to provide a coating machine which is capable of reducing power consumption and preventing risk of overheating by converting the coating machine into a standby mode when the coating machine is not operated for a predetermined time; and a method of controlling the coating machine. The coating machine includes: a heater heating the coating object to perform an operation of coating the coating object; a roller rotatably installed around the heater to transfer the object and transferring heat generated in the heater to the object; a motor generating a driving force to rotate the roller; an input unit receiving a temperature Ta at which the coating process is performed in an operation mode of performing a coating process and a transfer speed Sa of the object from a user; an object injection sensor installed on an injection unit to which the object is injected and sensing if the object has been injected; an object discharge sensor installed on a discharge unit through which the object is discharged and sensing if the object has been discharged; and a control unit receiving operating conditions Ta and Sa inputted through the input unit and receiving signals from the object injection sensor and the object discharge sensor to control the heater and the motor.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating machine having a workpiece input sensor and a discharge sensor, and a control method therefor.

The present invention relates to a coater and a control method thereof, and more particularly, to a coater having a sensor capable of detecting whether a work to be coated is put in or discharged from the coater and a control method thereof.

In order to store printed matter and photographs for a long period of time, a method of coating them with a plastic film is widely used. Films coated on the paper surface prevent the prints from discoloring, tearing by impact or deformation by moisture. Coated prints can be permanently preserved.

A common method of coating is to wrap the plastic film on both sides of the object paper, and to pass it through a high-temperature roller to fuse. Korean Utility Model Registration No. 20-0350977 discloses an example of a coater used for such a coating operation. The coater includes heating rollers 14, 15, 50 and 51 in which an infrared heater 12 is inserted and pressing rollers 16 and 52 provided behind the heating rollers 14, 15, 50 and 51, Respectively. The object to be coated passes through the heating rollers 14, 15, 50 and 51 while being passed through the pressing rollers 16 and 52 in a state in which the plastic film is softened and dissolved by high temperature heat, do.

This conventional coater sets the heater 12 and the rollers 14, 15, 16, 50, 51, and 52 while maintaining the set temperature and speed conditions by setting the temperature at which the coating operation is to be performed and the speed at which the coating object is supplied. Was designed to operate continuously. Therefore, there is a problem that power is wasted due to continuous operation of the apparatus even when the work to be coated is not supplied. Further, since the heater 12 is continuously operated, there is a risk of fire due to overheating of the device. Conventional coaters are usually installed in stationery shops or copy bookbands, and they are often used for supplementary services. In addition to coating, shoppers need to perform sales and copying at the same time. And the power wasted and the device overheating problem became more serious.

In addition, since the conventional coating machine continuously operates the heater and the roller at the set temperature and speed conditions during the coating operation, even if the work is clogged between the rollers to cause a malfunction, There has been a problem in that the operation of the inverter continues to cause a failure. This was even more serious in a harsh environment where the user could not constantly monitor the work status due to other work while the work was put in.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to provide a coater and control method thereof that can reduce the power consumption by switching the coater to the standby mode if the apparatus is not operated for a predetermined period of time, do.

It is another object of the present invention to provide a coater capable of automatically detecting malfunction of a device and preventing damage to the device, and a control method thereof.

According to an aspect of the present invention, there is provided a coater comprising: a heater for heating a work to be coated, the work being rotatably mounted around the heater to transfer a workpiece, A motor for generating a driving force for rotating the roller; an input unit for receiving a temperature Ta at which coating is to be performed in an operation mode in which coating is performed from a user and a transfer speed Sa of the workpiece; A sensor for sensing the presence or absence of the workpiece, a sensor for sensing the presence or absence of the workpiece, a sensor for detecting the presence of the workpiece, Receiving operating conditions Ta and Sa from the workpiece input sensor and the workpiece discharge sensor Receiving a call comprises the heater and the control part for controlling the motor.

In addition, the controller controls the heater and the motor by switching to the temperature Tb and the speed Sb according to the standby mode when the work input is not sensed for a predetermined time Da from the work input sensor during the operation mode.

In addition, the temperature Tb in the standby mode is lower than the temperature Ta in the operation mode, and the control unit turns off the power source if there is no input from the user through the input unit in the standby mode.

Further, the control unit may further receive a signal indicating whether or not the workpiece is discharged from the workpiece discharge sensor after a predetermined period of time Dc elapses after the workpiece is inserted from the workpiece input sensor in the operation mode If not, switch to reverse mode.

In order to achieve the above object, a method of controlling a coater according to the present invention includes the steps of receiving an operating condition relating to a temperature Ta to be coated by a user and a feeding speed Sa of a work to be coated, Ta, and Sa, a step of switching the operation mode of the heater and the roller so that the heater and the roller are operated, the step of determining whether or not the coating material is put in the operation mode, A standby mode switching step of switching to a temperature Tb and a speed Sb in accordance with the standby mode if no work input is detected during a predetermined period of time Da; A determination is made as to whether or not the workpiece is discharged after the predetermined time Dc has elapsed since the detection It includes.

The control method of the coater further includes a reverse rotation mode switching step of switching to a reverse rotation mode so that the workpiece is discharged to the charging unit side when it is determined that the workpiece is not discharged in the step of determining whether the workpiece is discharged, Further comprising a step of determining whether or not an operation condition is input from the user during a predetermined period of time Db after determining whether or not there is an input relating to the operation condition. The operation mode is switched to the operation mode switching step so that the operation condition is input.

According to the coating machine of the present invention and the control method thereof, there is provided a sensor capable of detecting whether or not the work to be coated is put in and discharged, and the control unit receives a control signal from these sensors and controls the apparatus, If the user does not perform the coating operation by automatically turning off the power when there is no operation condition input for a predetermined time in the standby mode, the user is not unnecessarily wasted Power can be reduced. In addition, when the user is not performing the coating operation, the standby mode switching and the power-off are performed, thereby reducing the risk of overheating of the apparatus and the possibility of failure. In addition, it is possible to quickly switch from the standby mode to the operation mode, thereby reducing the waiting time for the user to use the coater. In addition, if the inserted workpiece is not discharged within a predetermined time, it is determined that the device is malfunctioning and automatically switched to the reverse rotation mode to prevent the workpiece from being caught in the roller or clogged with the device.

1 is a perspective view showing a coater according to a preferred embodiment of the present invention.
2 is a cross-sectional view taken along the line A-A 'in Fig. 1; Fig.
3 is a view showing an example of a control panel in a coater according to a preferred embodiment of the present invention.
4 is a view showing a configuration of a coater according to a preferred embodiment of the present invention.
5 is a flowchart showing a control method of a coater according to a preferred embodiment of the present invention.

Hereinafter, various embodiments of the present invention will be described in detail with reference to the drawings. The embodiments described below may be modified in various ways by those skilled in the art. The embodiments described below are not intended to limit the invention to the embodiments. It is to be understood that the invention includes various modifications, alternatives, and equivalents within the scope of the following claims, as well as the following embodiments.

It is to be understood that the expressions " comprising, " " comprising, " " having ", and the like, which may be used hereinbelow,

The term " first ... " ", The second ... Quot ;, " first ", " second ", and the like should not be construed as limiting the order or importance between elements unless explicitly stated.

It is to be understood that the expressions " coupled, " " connected ", and the like, which may be used herein, unless the context clearly dictates otherwise, do.

It is to be understood that the singular use of the terms below does not exclude a plurality of representations unless explicitly stated to the contrary.

At least some of the devices or methods (e.g., steps) below may be implemented with instructions stored on a computer-readable storage medium, for example, in the form of a programming module. The instructions, when executed by one or more control modules, may cause the one or more processors to perform functions corresponding to the instructions. At least some of the programming modules may include, for example, modules, programs, routines, sets of instructions or processes, etc. to perform one or more functions. Also, operations performed by components such as apparatus and methods according to the present invention may be performed in a sequential, parallel, iterative manner. Also, some operations may be performed in a different order, omitted, or other operations may be added.

Hereinafter, a coater according to a preferred embodiment of the present invention and a control method thereof will be described in detail with reference to the drawings.

1 and 2, the coater 100 of the present invention is a device for coating paper, such as photographs, printed materials, and documents. Of course, it can be used not only for paper, but also for coating products other than paper, such as leaves and thin fabrics. The film that can be used in coating may be a conventional film for coating made of PET. Coating film can have various sizes such as A3, A4, A5, B4, B5. The coating film may have a thickness of about 80 to 150 mu m (micrometer).

A control panel 101 for controlling the operation of the apparatus is formed on the front surface of the coater 100. The user can control the temperature Ta to be coated through the control panel 101 and the speed Sa to which the coating work is put. Referring to FIG. 3, the control panel 101 may include a display unit 101a for displaying the coating temperature Ta and the velocity Sa. The display unit 101a may display the current temperature To and the speed So in which the apparatus is operating, or may display the temperature Ta and the speed Sa in accordance with the operating conditions set by the user. The control panel 101 may include a temperature input button 101b for allowing the user to set a temperature at which coating is to be performed and a speed input button 101c for allowing the user to set a speed at which coating is to be performed. In addition, the control panel 101 may include a power button 101d for controlling power on / off of the apparatus and a reverse button 101e for reversing the direction of rotation of the roller in the case where necessary.

The coating unit 100 has a charging unit 102 for charging a work to be coated and a discharging unit 103 for discharging a coated workpiece. As shown in FIG. 2, a plurality of rollers 106 and 108 are formed between the charging unit 102 and the discharging unit 103. The workpiece 10 supplied to the charging unit 102 is heated and pressed while passing between a plurality of rollers to thereby perform coating. The work to be coated 10 is composed of the paper 11 to be coated and the films 12 and 13 to be laminated on both the upper and lower sides thereof.

In the coater 100, a heating roller 106 and a pressing roller 108 are formed in sequence. The heating roller 106 is constituted by upper and lower first heating rollers 106a and 106b disposed at the frontmost end and upper and lower second heating rollers 106c and 106d arranged vertically at the rear of the heating roller 106 . On the rear side of the heating roller 106, a pressing roller 108 constituted by upper / lower pressing rollers 108a and 108b is constituted. A heater 111 is inserted into the hollow interior of the heating roller 106, respectively. The heater 111 is composed of first, second, third, and fourth heaters 111a, 111b, 111c, and 111d that are inserted into the heating rollers 106a, 106b, 106c, and 106d, respectively. The heating roller 106 surrounds the heater 111 and is rotatably installed. The heater 111 radiates heat so that the heating roller 106 is heated to a high temperature in a state where it can be coated. The heating roller 106 contacts the films 12 and 13 constituting the workpiece 10 and functions to soften and melt the films 12 and 13 in a state in which they can be coated. The pressing roller 108 strongly presses the softened and melted films 12 and 13 while passing through the heating roller 106 so that the films 12 and 13 are fused onto the paper 11. The heating roller 106 and the pressing roller 108 transfer the workpiece 10 to the discharge portion 103 while rotating. As the heater 111, a heater using a radiant heat such as a quartz tube heater, a halogen heater, or the like can be used. The heating roller 106 and the pressing roller 108 are rotatably installed so that the coating work 10 can be moved toward the discharging portion 103 from the charging portion 102 side. A workpiece input detection sensor 121 for detecting whether the workpiece 10 is inserted or not is formed on the bottom surface of the input unit 102. Conventional photosensors can be used as the workpiece input detection sensor 121. Also, a workpiece discharge sensor 122 for detecting whether the workpiece 10 has been coated or not is also formed on the bottom surface of the discharge unit 103. The workpiece discharge sensor 122 may be a conventional photo sensor. A temperature sensor 123 for detecting the temperature of the heating roller 106 is installed in the coater 100.

Referring to FIG. 4, the coater 100 of the present invention includes an input unit 131 for receiving operating conditions from a user to be coated. The operating conditions may include information about the temperature Ta at which the coating is to be performed and the transfer speed Sa of the target workpiece 10 at the time of coating. The temperature Ta at which the coating is to be performed may mean the temperature of the above-mentioned heating roller. Ta may be selected within the range of 120 ° C (degrees Celsius) to 160 ° C (degrees Celsius) or may be selected within the range of 100 ° C (degrees Celsius) to 200 ° C (degrees Celsius). Ta can be appropriately selected by the user considering the kind, size and thickness of the coating films 12 and 13. Ta may also be suitably selected by the user under consideration of the feed rate of the workpiece 10. [ That is, Ta is set to be high when the feeding speed is high for the same film, and Ta may be set to be low when the feeding speed is low. The transfer speed Sa of the workpiece 10 means the speed at which the workpiece 10 to be coated is moved on the coater 100. The feed rate Sa may be selected in the range of 0.5 m (meters) to 3.5 m (meters) per minute, or may be selected in other ranges. The input unit 131 may include the control panel 101 described above. The user can input the operation conditions Ta and Sa through which the coating operation is to be performed through the control panel 101. [

The coater 100 according to the present invention includes a controller 132 for controlling the apparatus so that coating can be performed according to the operating conditions Ta and Sa received from the input unit 131. The control unit 132 controls the heater 111 so that the rollers 106 and 108 are heated to the input temperature Ta. The control unit 132 controls the motor 112 driving the rollers 106 and 108 so that the coating workpiece 10 is moved in accordance with the input speed Sa. Hereinafter, a state in which operation is performed in accordance with the operation conditions Ta, Sa is referred to as an operation mode.

In addition, the controller 132 receives signals from the sensors 121, 122, and 123 installed in the coater 100 to control the operation of the apparatus. More specifically, the control unit 132 switches the apparatus to the standby mode if there is no input of the workpiece 10 for a predetermined period of time under the operation mode that is operated according to the operating conditions Ta and Sa set by the input unit 131 . The controller 132 receives a signal as to whether or not the workpiece is input from the workpiece input sensor 121 during operation of the device. The control unit 132 counts time under the operation mode, and switches the apparatus into the standby mode if no work input signal is detected for a predetermined predetermined time Da (e.g., 30 minutes). The standby mode means that the apparatus is operated at a temperature Tb and / or a speed Sb lower than the input operation condition. For example, when the set temperature Ta in the operation mode is 120 deg. C (degrees Celsius), the temperature Tb in the standby mode may be 80 degrees Celsius (degrees Celsius). Further, if the feed speed Sa in the operation mode is 3.5 m (meters) per minute, the feed speed Sb in the stand-by mode can be 1 m (meters) per minute. If the user inputs the operating conditions Ta and Sa again in the standby mode, the control unit 132 regards the operating conditions Ta and Sa as commands to switch the operating mode to the operating mode, And the motor 112 to switch to the operation mode. In the standby mode, the device is not completely turned off, but it can be quickly switched to the operating mode because it is in a preheat state where it can be restarted. For example, when the device is in the off state, the temperature of the device is in the normal temperature To (e.g., 25 占 폚) state, and therefore it takes typically five minutes or more to heat the device to the operating temperature Ta (e.g., 120 占 폚). However, since the coater 100 according to the present invention requires only heating up to the operation temperature Ta (for example, 120 占 폚) in the standby mode Tb (e.g., 80 占 폚), it is possible to quickly switch to the operation mode. Conventional coaters did not provide automatic switching to the standby mode. Therefore, there is a problem that the user must leave the operation mode in the coater while the workpiece is not put in, or turn off the power at all. On the other hand, the coater 100 of the present invention provides a standby mode to enable rapid switching to the operation mode.

In addition, if the user does not perform an input to switch back to the operation mode for a predetermined waiting time Db (for example, 30 minutes) under the standby mode, the control unit 132 turns the device into the power-off state.

The control unit 132 also detects whether the workpiece 10 is discharged through the discharge unit 103 through the workpiece discharge sensor 122. The workpiece 10 sensed by the workpiece input sensor 121 under the normal operation mode must be discharged after a predetermined transfer time Dc through the heating roller 106 and the compression roller 108. [ Here, the time Dc from when the workpiece is inserted until it is discharged means a time obtained by dividing the distance between the workpiece input sensor 121 and the workpiece discharge sensor 122 by the feed rate Sa. Alternatively, Dc may be a slightly longer time in consideration of a predetermined delay. If the workpiece discharge is not detected even after the transfer time Dc, the controller 132 determines that the workpiece is in a malfunction state such as clogging the workpiece in the apparatus or winding the workpiece on the rollers 106 and 108, and switches the mode to the reverse rotation mode. In the reverse rotation mode, the control unit 132 controls the rotation direction or the power transmission direction of the motor 112 so that the rollers 106 and 108 rotate in the opposite direction of the operation mode. Conventional coaters have not provided the ability to automatically switch the machine to reverse mode. There has been a problem that the conventional coater continues to operate in the operation mode even when the workpiece is blocked from the inside, unless the user manually switches the mode to the reverse rotation mode. This phenomenon could cause more serious problems, especially when the user is viewing other tasks while the work is put in. The coater 100 of the present invention automatically switches to the reverse rotation mode when a workpiece is clogged in the apparatus and malfunctions, thereby discharging the workpiece back to the input unit 102, thereby reducing the risk of damage to the apparatus have.

Next, a control method of the coater 100 according to the present invention will be described with reference to FIG. The control method of the coater according to the present invention includes a driving condition input step (S10) in which operating conditions Ta and Sa for a coating operation are inputted from a user. The control unit 132 receives the operating conditions Ta and Sa input by the user from the input unit 131. [

Next, an operation mode switching step (S20) is performed in which the coater is operated in a state in which the coating operation is possible in accordance with the inputted operation conditions Ta, Sa. In the operation mode switching step S20, the controller 132 starts the operation of the coater 100 and operates the motor 112 and the heater 111 so that the coating operation can be performed according to the operating conditions Ta and Sa inputted by the user .

Next, in step S30, it is determined whether or not the coating material is inserted into the operation mode. In step S30, the control unit 132 receives a workpiece input detection signal from the workpiece input sensor 121. In step S30, The control unit 132 performs a standby mode switching step S40 for switching the coater 100 to the standby mode if no work input is detected for a predetermined time Da after switching to the operation mode. In the standby mode switching step S40, the control unit 132 controls the motor 112 and the heater 111 under the conditions of the temperature Tb and the speed Sb under the standby mode. The standby mode condition temperature Tb may be a temperature condition lower than the temperature Ta in the operation mode as described above.

Next, in order to return to the operation mode switching step S20 in the standby mode, a step S50 of determining whether or not a driving condition input is made by the user is determined. The controller 132 determines that the coater 100 is not used if there is no input from the user during a predetermined time period Db in the standby mode and turns off the coater 100. On the other hand, if the user inputs the operation conditions Ta and Sa before the predetermined time Db elapses, the operation mode switching step S20 is performed so that the device is operated according to the input operation condition.

On the other hand, if the control unit 132 receives the workpiece input signal in the step S30 of determining whether to insert the workpiece, the step S60 of determining whether or not the workpiece is discharged is performed. In step S60, the control unit 132 determines whether a workpiece discharge signal is received from the workpiece discharge sensor 122 after a predetermined transfer time Dc has elapsed according to the transfer rate Sa in the operation mode. When the workpiece discharge signal is received, the controller 132 determines that the coater 100 is operating normally, and returns to step S30 to determine whether the coater 100 is operating in the operation mode. If the workpiece discharge signal is not detected even after the predetermined transfer time Dc elapses, the controller 132 determines that the workpiece is clogged in the coater 100 to cause a malfunction, and performs the reverse mode switching operation S70. In the reverse rotation mode step S70, the control unit 132 switches the direction of rotation of the rollers 106 and 108 so that the workpiece is discharged again to the input unit 102 side.

The controller 100 includes sensors 121 and 122 for detecting whether or not a work to be coated is put in and discharged and a control unit 132 receives control signals from the sensors 121 and 122 The apparatus is automatically switched to the stand-by mode if the workpiece is not put in the operation mode for a predetermined period of time, and if the operation condition is not input again for a predetermined time in the stand-by mode, Unnecessary wasted power can be reduced when the coating operation is not performed. In addition, when the user is not performing the coating operation, the standby mode switching and the power-off are performed, thereby reducing the risk of overheating of the apparatus and the possibility of failure. In addition, it is possible to quickly switch from the standby mode to the operation mode, thereby reducing the waiting time for the user to use the coater. If the inserted workpiece is not discharged within a predetermined period of time, the control unit 132 determines that the device is malfunctioning and automatically switches to the reverse rotation mode, thereby preventing the workpiece from being caught in the roller or clogged with the device.

100: Coater
101: Control panel
102:
103:
106: Heating roller
108: Compression roller
111: heater
112: motor
121: Workpiece input sensor
122: Workpiece discharge sensor
123: Temperature sensor
131:
132:
S10: Operation condition input step
S20: Operation mode switching step
S30: Step of judging whether or not the workpiece is input
S40: standby mode switching step
S50: Whether or not the operation condition is input
S60: Step of judging whether or not the workpiece is discharged
S70: Reverse rotation mode switching step

Claims (8)

A heater for heating a work to be coated so that a coating operation can be performed;
A roller rotatably installed around the heater for transferring the workpiece and transferring the heat generated from the heater to the workpiece;
A motor for generating a driving force for rotating the roller,
An input unit for receiving the temperature Ta at which the coating is to be performed in the operation mode in which the coating is performed from the user and the conveyance speed Sa of the workpiece,
A workpiece insertion detecting sensor installed on a loading part for inputting a workpiece and detecting whether a workpiece is inserted,
A crop discharge sensor installed on a discharge portion where the workpiece is discharged to detect whether the workpiece is discharged,
And a control unit for receiving the operating conditions Ta and Sa input through the input unit and receiving signals from the workpiece input detection sensor and the workpiece discharge detection sensor to control the heater and the motor. The method according to claim 1,
Wherein the controller controls the heater and the motor by switching to a temperature Tb and a speed Sb according to a standby mode when a workpiece is not input for a predetermined time Da from the workpiece input detection sensor under an operation mode. 3. The method of claim 2,
And the temperature Tb in the standby mode is lower than the temperature Ta in the operation mode. 3. The method of claim 2,
Wherein the controller turns off the power source if there is no input from the user through the input unit in the standby mode. 3. The method of claim 2,
If the control unit does not receive a signal indicating whether or not the workpiece is discharged from the workpiece discharge sensor after a predetermined period of time Dc elapses after the insertion of the workpiece is detected in the operation mode, Coater to switch to spin mode. Receiving operating conditions relating to a temperature Ta at which the coating operation is to be performed from the user and a conveyance speed Sa of the work to be coated;
An operation mode switching step of switching the heater and the roller to operate in accordance with the operating conditions Ta and Sa inputted by the user,
Determining whether a coating material is input in an operation mode,
A standby mode switching step of switching to a temperature Tb and a speed Sb according to a standby mode when a workpiece is not input for a predetermined time Da in the step of determining whether or not to insert the work,
Determining whether or not the workpiece is discharged after a predetermined time Dc elapses after the insertion of the workpiece is detected for a predetermined time Da in the step of determining whether the workpiece is charged, ≪ / RTI > The method according to claim 6,
The control method of the coater further comprises a reverse rotation mode switching step of switching to a reverse rotation mode so that the workpiece is discharged to the charging unit side when it is determined that the workpiece is not discharged in the step of determining whether the workpiece is discharged Control method. The method according to claim 6,
The control method of the coater further includes a step of determining whether or not a driving condition is input to determine whether there is an input regarding a driving condition from a user for a predetermined time Db after switching to a standby mode,
If it is determined that the operation condition is input, if there is an input regarding the operation condition,
Wherein the controller turns off the power supply if there is no input regarding the operation condition in the step of determining whether the operation condition is input.

Images