Silk screen printing apparatus

Abstract

The present invention relates to a film heater silkscreen printing device, and more specifically, to a film heater silkscreen printing device capable of automatically performing the entire process of printing to form heating lines using a conductive material on a film, as well as aligning the film in the correct position to enable printing at an accurate location and preventing the film from being contaminated by foreign substances. The present invention for achieving the above-mentioned purpose is characterized by comprising: a film supply device for supplying a film to be printed; an alignment device for aligning the film supplied from the film supply device in a fixed position; a printing device for printing on the upper surface of the aligned film; a discharge device for discharging the film on which printing is completed on the upper surface; and a control device for controlling the supply device, the alignment device, the printing device, and the discharge device.

Description

Technology Field

[0001] The present invention relates to a film heater silkscreen printing device, and more specifically, to a film heater silkscreen printing device capable of automatically performing the entire process of printing to form heating lines using a conductive material on a film, as well as aligning the film in the correct position to enable printing at an accurate location and preventing the film from being contaminated by foreign substances. Background Technology

[0002] Generally, silk-screen printing is a type of stencil printing method similar to a mimeograph.

[0003] In this way, the commonly known silk screen printing method involves placing a cloth (a coarse-grained silk cloth) tightly in a rectangular frame (hereinafter referred to as a "frame"), and then leaving a photosensitive liquid on the cloth excluding the area to be printed to complete a stencil-shaped frame.

[0004] Next, it is a method of printing on the surface of a piece of fabric by placing the printed material at the bottom of the mold and then applying ink (paint) evenly to the top of the fabric using a squeegee made of rubber or similar material.

[0005] While this silkscreen printing technique is primarily used for general printed materials, it is also widely used for printing circuits on circuit boards. For instance, when printing resistors on a board, a silkscreen printer is used, whereas conductors in paste form are printed using a screen printer.

[0006] Typically, for printers used to print circuits on circuit boards, alignment of the board is crucial during transport and printing; therefore, the board is aligned using mechanical methods such as slide plates during and after transport.

[0007] However, this alignment method had problems such as the substrate being damaged when in contact with the slide plate or not being aligned to the correct position due to mechanical tolerances, and additionally, the alignment of the substrate could be disrupted between the transfer devices.

[0008] Therefore, in order to solve these problems, the technology described in Korean Registered Patent No. 10-1244226, as illustrated in FIG. 1 and FIG. 2, is proposed. The technical features include a ceramic substrate printing machine that prints a substrate on a squeegee (61), comprising: a substrate supply device (10) that supplies a loaded substrate; a substrate alignment device that transports and aligns a substrate from the substrate supply device (10); a substrate alignment inspection unit (30) that inspects the alignment state of the substrate transported from the substrate alignment device; a printed substrate transport unit (40) that transports the substrate inspected by the substrate alignment inspection unit (30) to the lower part of the squeegee (61) for printing and moving; and a printed substrate transport unit (70) that inspects the printing state of the substrate moved from the printed substrate transport unit (40). The substrate alignment device and the printed substrate transport unit (40) are characterized by temporarily fixing one side of the substrate during transport.

[0009] However, the technology described in Korean Registered Patent No. 10-1244226 has the advantage of preventing the alignment from being disrupted during printing by fixing and moving the substrate, but it is limited to printing only on rigid substrates and has the problem of being difficult to print on substrates made of film, such as flexible substrates.

[0010] In addition, there is a problem that the substrate may become contaminated because foreign substances in the part where the substrate is fixed cannot be removed. Prior art literature

[0011] Korean Registered Patent No. 10-1244226 (Registered on March 11, 2013) The problem to be solved

[0012] The present invention has been devised to solve the aforementioned problems, and the objective of the present invention is to provide a film heater silkscreen printing device that can automatically perform the entire process of printing to form a heating line using a conductive material on a film, thereby enabling faster printing, and also enables the film to be aligned to an accurate position by automatically moving and rotating it forward, backward, left, and right according to the position of the film placed on the upper part of a fixed plate, thus allowing printing to be done at an accurate position on the film.

[0013] In addition, another objective of the present invention is to provide a film heater silkscreen printing device that can prevent the printing quality from deteriorating due to contamination of the film by foreign substances by cleaning the upper surface of the fixing plate when supplying the film to be printed to the upper surface of the fixing plate. means of solving the problem

[0014] The present invention for solving these problems is as follows:

[0015] It is characterized by comprising a film supply device for supplying a film to be printed, an alignment device for aligning the film supplied from the film supply device in a fixed position, a printing device for printing a heating line on the upper surface of the aligned film, a discharge device for discharging the film on which printing is completed on the upper surface, and a control device for controlling the supply device, the alignment device, the printing device, and the discharge device.

[0016] Here, the alignment device comprises a fixed plate on which a film is placed, a position adjustment body installed at the bottom of the fixed plate to rotate the fixed plate forward, backward, left, right, and in all directions, and a camera that photographs the upper surface of the fixed plate, and the control device is characterized by analyzing the image captured through the camera to align the film to the correct position.

[0017] At this time, a moving rail is provided between the alignment device and the printing device on which the position adjustment body moves, and an operating member for moving the position adjustment body is provided on one side of the moving rail.

[0018] In addition, the film supply device is characterized by comprising a stacking unit configured to allow films to be stacked, a position sensing sensor located above the stacking unit to detect the height of the film, a lifting control unit installed in the stacking unit to maintain the height of the film at a constant level, and a supply unit that supplies the film located at the top of the stacking unit to the alignment unit.

[0019] Here, the supply unit is characterized by comprising a supply rail installed between the film supply device and the alignment device, a supply body configured to be movable along the supply rail, a supply cylinder installed on the supply body, a supply adsorption member installed at the bottom of the supply cylinder to adsorb the film, and a supply screw installed on one side of the supply rail to penetrate the supply body and move the supply body.

[0020] Meanwhile, the supply body is further provided with a cleaning cylinder positioned at the entire supply cylinder, and a cleaning roller for cleaning the upper surface of the fixed plate is installed at the lower part of the cleaning cylinder.

[0021] At this time, the washing roller is further characterized by being equipped with a washing motor that rotates in the opposite direction to the direction of movement.

[0022] In addition, the discharge device is characterized by comprising a discharge rail installed along the longitudinal direction on the side of the printing device, a discharge body that moves along the discharge rail, a discharge cylinder installed at the end of the discharge body, and a discharge adsorption member installed at the lower part of the discharge cylinder to adsorb a printed film. Effects of the invention

[0023] According to the present invention with the above-described configuration, the entire process of printing to form a heating wire using a conductive material on a film can be performed automatically, thereby enabling faster printing. Furthermore, the film can be aligned to an accurate position by automatically moving it forward, backward, left, and right and rotating it according to the position of the film placed on the upper part of the fixed plate, thus providing the effect of enabling printing at an accurate position on the film.

[0024] In addition, the present invention has the effect of preventing the printing quality from deteriorating due to contamination of the film by foreign substances by cleaning the upper surface of the fixing plate when supplying the film to be printed onto the upper surface of the fixing plate. Brief explanation of the drawing

[0025] FIG. 1 is a perspective view of a conventional silkscreen printing device. FIG. 2 is a perspective view of the main part of a conventional silkscreen printing device. FIG. 3 is a perspective view of a film heater silkscreen printing device according to the present invention. FIG. 4 is a perspective view of the supply unit of a film heater silkscreen printing device according to the present invention. FIG. 5 is a side conceptual diagram showing the situation of cleaning the upper part of the fixed plate of a film heater silkscreen printing device according to the present invention. FIG. 6 is a planar conceptual diagram of an alignment device of a film heater silkscreen printing device according to the present invention. FIG. 7 is a perspective view of a fixed plate of a film heater silkscreen printing device according to the present invention positioned at the bottom of the printing device. Specific details for implementing the invention

[0026] Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the attached drawings. Identical components in the drawings are denoted by the same reference numerals, and redundant descriptions of identical components are omitted. Furthermore, it should be understood that the present invention can be implemented in a number of different forms and is not limited to the described embodiments.

[0027] FIG. 3 is a perspective view of a film heater silkscreen printing device according to the present invention, FIG. 4 is a perspective view of a supply unit of a film heater silkscreen printing device according to the present invention, FIG. 5 is a side conceptual view showing a situation of cleaning the upper part of a fixed plate of a film heater silkscreen printing device according to the present invention, FIG. 6 is a plan conceptual view of an alignment device of a film heater silkscreen printing device according to the present invention, and FIG. 7 is a perspective view of a state in which the fixed plate of a film heater silkscreen printing device according to the present invention is located at the lower part of the printing device.

[0029] The present invention relates to a film heater silkscreen printing device, and as shown in FIGS. 3 to 7, the configuration comprises a film supply device (200) that supplies a film to be printed, an alignment device (300) that aligns the film supplied from the film supply device (200) in a fixed position, a printing device (400) that prints on the upper surface of the aligned film, and a discharge device (500) that discharges the film on which printing is completed on the upper surface.

[0030] Here, the supply device (200), alignment device (300), printing device (400), and discharge device (500) are installed on the upper part of a base frame (100) installed at the bottom, and although not shown in the drawing, a control device (not shown) is provided on one side of the base frame (100) to control the operation of the supply device (200), alignment device (300), printing device (400), and discharge device (500).

[0031] Therefore, by automatically performing the entire process of receiving the film, aligning the position of the film, moving the film to the printing device (400), printing a heating line on the upper surface of the film using a conductive material, and discharging the film with the printed heating line to the conveyor device (600) located at the rear of the base frame (100), printing on the upper surface of the film can be performed more quickly and accurately.

[0032] And, the film supply device (200) comprises a stacking unit (210) configured to allow films to be stacked, a lifting control unit (220) installed in the stacking unit (210) to maintain the height of the film at a constant level, and a supply unit (230) that supplies the film located at the top of the stacking unit (210) to the alignment unit (300).

[0033] Here, the lifting control unit (220) is provided at the bottom of the loading unit (210) and comprises a lifting plate (222) on which the film is loaded, a lifting screw (224) that moves the lifting plate (222) up and down by penetrating the loading unit (210) and the lifting plate (222) up and down, and a lifting motor (not shown) provided at the bottom of the loading unit (210) to rotate the lifting screw.

[0034] At this time, a position sensing sensor (not shown) is provided to detect the height of the film located on the upper part of the loading section (210), and the information detected by the position sensing sensor is transmitted to the control device.

[0035] Therefore, the control device checks the top position of the film currently loaded in the loading unit (210) and controls the lifting control unit (220) accordingly to maintain the top position of the film at a constant level, thereby enabling stable supply of the film through the supply unit (230).

[0036] Meanwhile, the supply unit (230) comprises a supply rail (231) installed between the film supply device (200) and the alignment device (300), a supply body (240) configured to be movable along the supply rail (231), a supply cylinder (241) installed on the supply body (240), and a supply adsorption member (242) installed at the bottom of the supply cylinder (241) to adsorb the film.

[0037] Here, an operating member (not shown), such as a chain or screw, is provided on one side of the supply rail (231) to move the supply body (240), and one end of the supply rail (231) and the operating member is supported on the upper part of the loading part (210), and the other end is installed so that its end is supported on a bracket (110) installed on the upper part of the base plate (100).

[0038] At this time, the operating member, which is made of a chain or screw, etc., is rotated by a supply motor (not shown) installed on one side of the loading part (210) to move the supply body (240).

[0039] Therefore, the control device can move the supply body (240) by adjusting the rotational direction of the supply motor (234), thereby enabling the film to be supplied from the loading unit (210) to the alignment device (300).

[0040] And, the alignment device (300) comprises a fixed plate (310) on which a film is placed, a position adjustment body (320) installed at the bottom of the fixed plate (310) to rotate the fixed plate (310) forward, backward, left, right, and up, and a camera (330) for photographing the upper surface of the fixed plate (310).

[0041] Here, the fixed plate (310) has an intake hole (not shown) for sucking in air and adsorbs and fixes the film placed on top, and the control device analyzes the image captured through the camera (330) to determine the current position of the film and controls the position adjustment body (320) to align the film to the correct position.

[0042] At this time, a moving rail (340) is provided between the alignment device (300) and the printing device (400) on which the position adjustment body (320) moves. On one side of the moving rail (340), a moving screw (342) is provided that passes through the position adjustment body (320) and moves the position adjustment body (320) according to the direction of rotation. On one side of the base frame (100), a moving motor (343) is installed to rotate the moving screw (342).

[0043] Therefore, after confirming that the film is positioned correctly in the control device, the moving motor (343) is controlled to move the position adjustment body (320) so that the fixing plate (310), on which the film is adsorbed and fixed to the upper surface, is moved to the lower part of the printing device (400), thereby allowing the printing device (400) to print circuits, etc., on the upper part of the film at an accurate position.

[0044] Meanwhile, the supply body (240) moving between the film supply device (200) and the alignment device (300) is further provided with a cleaning cylinder (243) positioned at the entire supply cylinder (241).

[0045] Here, a cleaning roller (244) for cleaning the upper surface of the fixed plate (310) is installed at the lower part of the cleaning cylinder (241). When the supply body (240) moves toward the alignment device (300), the cleaning cylinder (241) is operated so that the cleaning roller (244) comes into contact with the upper surface of the fixed plate (310), thereby cleaning the upper surface of the fixed plate (310) during the movement process.

[0046] At this time, although not shown in the drawing, the cleaning roller (244) is installed so as to be detachable, and a cleaning motor (not shown) is provided on one side of the cleaning roller (244) to control the cleaning roller (244) to rotate in the opposite direction of movement, and a cleaning agent is applied to the cleaning roller (244) to clean foreign substances adhering to the upper surface of the fixed plate (310).

[0047] Therefore, in the process of moving to the fixed plate (310) while the film is adsorbed by the supply adsorption member (242) of the supply body (240), the cleaning roller (244) cleans the upper surface of the fixed plate (310), thereby not only adsorbing the film more firmly but also reliably preventing foreign substances from adhering to the film and contaminating the film.

[0048] Additionally, since the above printing device (400) uses a conventional silkscreen printing device, a separate description is omitted.

[0049] And, a discharge device (500) for discharging a film that has been printed in the printing device (400) is installed on the upper rear side of the base frame (100), and the discharge device (500) moves the printed film to a conveyor device (600) located at the rear side of the base frame (100).

[0050] Here, the discharge device (500) comprises a discharge rail (510) installed to protrude rearward along the longitudinal direction on the side of the printing device (400), a discharge body (520) that moves along the discharge rail (510), a discharge cylinder (530) installed at the end of the discharge body (520), and a discharge adsorption member (532) installed at the bottom of the discharge cylinder (530) to adsorb a printed film.

[0051] Therefore, the control device controls the printing device (400) to complete printing, and then the discharge adsorption member (532) of the discharge device (500) moves to the upper part of the fixed plate (310) located on the printing device (400), lifts the film while adsorbing it, moves it backward, and moves the film to the upper part of the conveyor device (600), thereby moving the completed film to a set location by the conveyor device.

[0052] Through the aforementioned process, circuits and the like can be automatically printed accurately at the position set on the upper part of the film using the silkscreen printing method.

[0053] Although preferred embodiments of the present invention have been described above, the scope of the present invention is not limited thereto, and the scope of the present invention extends to those within a substantially equivalent range to the embodiments of the present invention. Various modifications can be made by those skilled in the art to which the present invention belongs, without departing from the spirit of the present invention. Industrial applicability

[0054] The present invention relates to a film heater silkscreen printing device, and more specifically, to a film heater silkscreen printing device capable of automatically performing the entire process of printing to form heating lines using a conductive material on a film, as well as aligning the film in the correct position to enable printing at an accurate location and preventing the film from being contaminated by foreign substances. Explanation of the symbols

[0055] 100 : Base frame 200 : Film feeder 210: Loading section 220: Lifting control section 230 : Supply unit 240 : Supply body 300 : Alignment device 310 : Fixed plate 320 : Position adjustment body 330 : Camera 340 : Moving rail 400 : Printing device 500 : Discharge device 510 : Discharge rail 520: Discharge body 530: Discharge cylinder 600 : Conveyor device

Claims

Claim 1 The apparatus comprises a film supply device for supplying a film to be printed, an alignment device for aligning the film supplied from the film supply device in a fixed position, a printing device for printing a heating line on the upper surface of the aligned film, a discharge device for discharging the film on which printing is completed on the upper surface, and a control device for controlling the supply device, the alignment device, the printing device, and the discharge device. The alignment device comprises a fixed plate on which the film is placed, a position adjustment body installed below the fixed plate to rotate the fixed plate in all directions (front, back, left, right), and a camera for photographing the upper surface of the fixed plate. The control device analyzes the image captured through the camera to align the film in a fixed position. The film supply device comprises a stacking unit configured to allow the film to be stacked, a position sensing sensor located above the stacking unit to detect the height of the film, a lifting control unit installed on the stacking unit to maintain a constant height of the film, and a supply unit that supplies the film located at the top of the stacking unit to the alignment device. The supply unit comprises a supply rail installed between the film supply device and the alignment device, and is capable of moving along the supply rail. A film heater silkscreen printing device comprising a supply body, a supply cylinder installed in the supply body, a supply adsorption member installed at the bottom of the supply cylinder to adsorb a film, and a supply screw installed on one side of the supply rail to penetrate the supply body and move the supply body, wherein the supply body further comprises a cleaning cylinder positioned at the entire supply cylinder, and a cleaning roller installed at the bottom of the cleaning cylinder to clean the upper surface of the fixed plate. Claim 2 delete Claim 3 A film heater silkscreen printing device according to claim 1, characterized in that a moving rail is provided between the alignment device and the printing device, on which the position adjustment body moves, and an operating member for moving the position adjustment body is provided on one side of the moving rail. Claim 4 delete Claim 5 delete Claim 6 delete Claim 7 A film heater silkscreen printing device according to claim 1, characterized in that the washing roller is further equipped with a washing motor that rotates in a direction opposite to the direction of movement. Claim 8 A film heater silkscreen printing device according to claim 1, wherein the discharge device comprises a discharge rail installed along the longitudinal direction on the side of the printing device, a discharge body that moves along the discharge rail, a discharge cylinder installed at the end of the discharge body, and a discharge adsorption member installed at the lower part of the discharge cylinder to adsorb a printed film.

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