KR20110065735A - Apparus for molding by ultraviolet cure - Google Patents

Abstract

PURPOSE: A molding device using ultraviolet rays is provided to simplify a structure since while a mold transfers along a linear reciprocating path, resin is cured by ultraviolet rays. CONSTITUTION: A molding device using ultraviolet rays comprises a body, a linear transfer guide(110), a transfer screw(120), a motor(102), a transfer bed(150), a resin feeder(130), a laminator(140) and an ultraviolet curing device(160). The linear transfer guide is installed on the mounting plane of the body. The motor rotates the transfer screw. The transfer bed is screwed to the transfer screw. The transfer bed moves back and forth along the transfer guide by the rotation of the transfer screw. A mold is mounted on the transfer bed. The dispenser(133) of the resin feeder supplies resin to the mold. The forming roller(146) of the laminator presses and forms resin which is coated on the mold.

Description

UV Curing Molding Equipment {APPARUS FOR MOLDING BY ULTRAVIOLET CURE}

The present invention relates to an ultraviolet curing molding apparatus, and more particularly, to simplify the device by simplifying the transfer structure of the mold to a linear reciprocating motion, as well as to reduce the device manufacturing cost and product production cost, product productivity It can improve, and relates to an ultraviolet curing molding apparatus that can improve the processing quality by adjusting the temperature of the mold through the installation of a heater.

UV curing molding apparatus manufactures a product having a pattern of a desired shape by applying a liquid ultraviolet curing resin to the molding surface of the mold and irradiating ultraviolet rays, for example, for keypads, display window protective covers, cases of mobile communication terminals. It is mainly used for the manufacture of sheet-like products having functional or decorative patterns such as decorative covers.

1 illustrates a conventional ultraviolet curing molding apparatus.

In the illustrated molding apparatus, the first conveyor 11 and the second conveyor 12 are installed in parallel to each other in a direction opposite to each other, and irradiate ultraviolet rays onto the transfer path of the second conveyor 12. An ultraviolet curing machine 13 for curing the resin is provided. The dispenser 14 for supplying a liquid raw material resin is installed at the entrance of the first conveyor 11.

Between the entrance part of the first conveyor 11 and the discharge part of the second conveyor 12, the first transfer table for re-supplying the mold recovered through the ultraviolet curing machine 13 to the first conveyor (11) 15 is provided, and on the opposite side, a second transfer table 16 for transferring the mold transferred through the first conveyor 11 to the second conveyor 12 is provided. On the upper part of the second transfer table 16, a laminator 17 for pressing and molding the raw resin supplied to the mold by the dispenser 14 is formed.

In the molding apparatus configured as described above, the dispenser 14 supplies the raw material resin to the mold loaded from the first transfer table 15 to the first conveyor 11, and transfers the mold transferred to the second transfer table 16. The second worker 22 aligns to the position for laminating. While the mold is moved by the second transfer table 16, the laminator 17 presses the resin to form a product having a predetermined pattern. The mold moved by the second transfer table 16 is transferred to the first transfer table 15 by passing through the ultraviolet curing machine 13 by the second conveyor 12, and the resin is cured in the process. This is done. The finished product is taken out by the first worker 21 located on the first transfer table 15 side, and the transferred mold is loaded back into the first conveyor 11 to repeat the above-described process.

As described above, the conventional ultraviolet molding device is a resin while circulating the mold through the first conveyor 11, the first transfer table 15, the second conveyor 12, and the second transfer table 16. Due to the complex structure of supplying, laminating, and UV curing, the size of the device is enlarged, occupies a lot of installation space, the manufacturing cost of the device is high, and the feeding speed of the mold is limited to the entire circulation path, resulting in high productivity. Falling, there is a problem that the production cost is increased by requiring several molds in order to increase the productivity. And, there was a problem that the burden of the production cost is increased by requiring two workers as described above.

Moreover, due to the structure in which the mold is continuously circulated and transported as described above, it is difficult to install a heater for controlling the temperature of the mold due to the difficulty in power wiring, and accordingly, there is a problem in that the temperature of the workpiece is not properly adjusted and the product quality is degraded.

The present invention is to solve the problems described above, it is possible to simplify the mold transfer structure to reduce the size and manufacturing cost of the device, to improve the productivity and production cost, and to improve the product quality through the temperature control of the mold It is an object of the present invention to provide an ultraviolet curing molding apparatus.

The present invention for achieving the above object, the main body provided with an installation surface; A linear feed guide provided on the installation surface of the main body; A transfer screw installed in parallel with the transfer guide; A motor for rotating the transfer screw; A conveying bed mounted on the conveying guide and screwed to the conveying screw to move forward and retract along the conveying guide by rotation of the conveying screw; A resin feeder installed on an upper side of the transfer guide and having a dispenser for supplying resin to the mold; A laminator installed at a rear end of the resin feeder and having a forming roller for press molding the resin applied to the mold; And it is provided at the rear end of the laminator, and provides an ultraviolet curing molding apparatus including an ultraviolet curing machine for curing the molded article disposed in the mold by irradiating ultraviolet rays.

In the molding apparatus of the present invention, the transfer guide is preferably made of an LM guide including a guide rail fixed to the main body and a slider movably coupled to the guide rail.

The motor is made of a servo motor, it is preferable that a controller for controlling the speed and position of the servo motor.

More preferably, a heater for controlling the temperature of the mold is installed in the transfer bed.

The resin feeder may be configured to include a reciprocating carriage installed in the transverse direction above the transfer guide, a movable block movably coupled to the reciprocating carriage, and at least one dispenser coupled to the movable block. .

In this case, the reciprocating carriage is preferably provided with an electric or fluid actuator for reciprocating the movable block in the horizontal direction.

The laminator may include a guide bar installed on both sides of the transfer guide upwardly, a mounting rod horizontally coupled to an upper end of the guide bar, and a roller support block installed on both sides of the guide roller to support both sides of the forming roller; It may be configured to include a lifting cylinder which is connected between the mounting table and the roller support block to move the forming roller up and down according to the stretch.

Molding apparatus of the present invention may further comprise a shield for blocking the ultraviolet leakage by opening and closing the entrance and exit of the ultraviolet curing machine.

The shield includes a cover part forming a passage communicating with an entrance and exit of the ultraviolet curing machine, a support plate installed upright on an upper part of the cover part, a shield plate coupled to the support plate so as to be movable up and down, and the shield plate in the cover part. It may be configured to include an opening and closing cylinder for opening and closing the door of the ultraviolet curing device to move to the outside / outside.

According to the present invention as described above has the following advantages.

(1) By simplifying the transport structure so that the mold is transported along the straight reciprocating path, the UV curable resin molding can be simplified, thereby reducing the manufacturing cost and installation space by simplifying and miniaturizing the device structure.

(2) It is possible to increase the mold transfer speed between the processes forming the molding process, and in particular, it is possible to shorten the time required per cycle by increasing the return speed after molding, thereby improving product productivity.

(3) Since the number of molds and manpower required for device operation can be reduced, product production cost can be reduced.

(4) Since wiring to the transfer bed is easy to install the heater, it is possible to improve the product quality by adjusting the temperature of the mold to the optimum state.

The objects, features and advantages of the present invention described above will become more apparent from the following detailed description. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a perspective view showing an embodiment of the ultraviolet curing molding apparatus according to the present invention, Figures 3 to 5 are a front view, a plan view and a side view of the molding apparatus of the present invention shown in FIG.

As shown, the molding apparatus of the present invention includes a main body 100 having a horizontal installation surface on the upper side, a pair of transfer guides 110 installed longitudinally on the upper part of the main body 100, and the transfer guide 110. ) A transfer screw 120 installed in parallel with the transfer screw, a motor 102 for rotating the transfer screw 120, and a transfer bed 150 linearly reciprocating on the transfer guide 110 according to the rotation of the transfer screw 120. And a resin feeder 130 installed at the upper side of the transfer guide 110, a laminator 140 installed at the rear end of the resin feeder 130, and an ultraviolet curing machine 160 installed at the rear end of the laminator 140. .

A drive controller 181 for manipulating and controlling the transfer of the transfer bed 150 by the motor 102 is installed at one upper side of the main body 100, and one side of the main body 100 operates the ultraviolet curing unit 160. UV controller 182 is installed to manipulate and control.

The conveying guide 110 may be made of various guide structures for guiding the linear reciprocating motion of the conveyed material, and preferably made of an LM guide. In the illustrated embodiment, the slider 111 is coupled to each of the guide rails 110 installed in parallel with each other, and the lower sides of the transfer bed 150 are coupled to the respective sliders 111.

The motor 102 is preferably made of a servo motor to facilitate accurate position control and speed control.

The transfer bed 150 is to be transported along the transfer guide 110 in a state where the mold 101 is mounted on the upper portion, and a screw holder 153 screwed to the transfer screw 120 is provided at the lower portion thereof. In accordance with the rotation of the transfer screw 120 is moved to the front or rear.

In addition, the transfer bed 150 is provided with a heater 152 for maintaining the temperature of the mold 101, and although not shown, a temperature for controlling the operation of the heater 152 by sensing the temperature of the mold 101. Preferably, a sensor is provided.

The mold 101 is a known one used in a conventional UV curing molding process, and has a molding surface for forming a predetermined pattern thereon.

The resin supplier 130 is to supply the raw resin to the mold 101 moved by the transfer bed 150, may be installed separately from the laminator 140, in the illustrated embodiment laminator ( 140) and a shared support was illustrated. That is, the resin supplier 130 is installed on the reciprocating carriage 131 installed above the support so that the movable block 132 is movable in the horizontal direction, and discharges the raw resin to the movable block 132 It has a structure in which the some dispenser 133 supplied to the metal mold | die 101 which passes below is mounted.

The reciprocating carriage 131 is preferably made of an actuator for reciprocating the movable block 132 in the horizontal direction. The actuator may be a conventional one that provides a linear movement force such as an electric actuator that provides a movement force by driving of a motor, a fluid actuator such as a rodless cylinder or a telescopic cylinder.

The laminator 140 is formed by pressing the material resin supplied to the mold 101 by the dispenser 133 into a predetermined product shape, the molding roller 146 inside the support on which the resin feeder 130 is installed. ) Has a structure installed.

The forming roller 146 is installed to be elevated up and down. To this end, the support is a pair of fixed block 141, respectively installed on both sides of the transverse direction of the transfer guide 110, the guide bar 143 installed upward on the fixed block 141, the upper end of both side guide bar 143 Coupled to the horizontal mounting bracket 142, a pair of roller support block 145 is installed to be movable along both side guide bar 143, and the rod is installed downward on the top of the mounting rod 142 the roller It consists of a pair of lifting cylinder 144 coupled to the support block 145, the rotating shaft of the forming roller 146 is supported on both roller support block 145 is formed according to the expansion and contraction of the lifting cylinder 144 ( 146 is moved up and down.

The ultraviolet curing unit 160 is to cure the workpiece formed by the laminator 140 to complete the final product by ultraviolet curing, the ultraviolet irradiator 161 is installed inside the casing partitioned from the outside.

An opening and closing shield 171 is provided at the inlet side of the ultraviolet curing unit 160 to prevent ultraviolet rays from being emitted to the outside. The shield 171 is a cover portion 162 forming a passage communicating with the inlet of the ultraviolet curing unit 160 to move the transfer bed 150 through the transfer guide 110, the cover portion 162 The support plate 172 is installed upright in the upper portion, the shielding plate 171 is coupled to the support plate 172 to be movable up and down through the guide bar 173, the support plate 172 is connected to the shielding plate 171 It consists of an opening and closing cylinder 174 installed downward. Accordingly, the shielding plate 171 is elevated in / outward of the cover part 162 through the slit to open and close the inlet of the ultraviolet curing unit 160 according to the expansion and contraction of the opening and closing cylinder 174.

Referring to the operation of the ultraviolet curing molding apparatus of the present invention configured as described above are as follows.

In the state where the transfer bed 150 on which the predetermined mold 101 is mounted as shown in FIG. 2 is positioned, when a start command is input manually or automatically, the motor 102 is driven to rotate the transfer screw 120. Accordingly, the transfer bed 150 is moved along the transfer guide 110 to sequentially pass through the resin feeder 130, the laminator 140, and the ultraviolet curing machine 160.

When the transfer bed 150 is positioned below the resin supplier 130, the dispenser 133 is opened to supply a predetermined amount of resin to the molding surface of the mold 101. At this time, since the dispenser 133 is transferred to the left and right by the reciprocating feeder 131 and the plurality of dispensers 133 are installed, the resin may be evenly applied to a wider area.

When the transfer bed 150 is located below the laminator 140, the forming roller 146 is moved downward by the lifting cylinder 144 to contact the resin applied to the mold 101, in this state The transfer bed 150 is continuously moved to form the resin under pressure while the forming roller 146 is driven to rotate. As a result, the resin is molded into a sheet-like intermediate workpiece, and at the same time, a molding pattern provided on the molding surface of the mold 101 is transferred to one surface of the intermediate workpiece to form a product.

When the transfer bed 150 is located at the inlet side of the ultraviolet curing machine 160, the shield plate 171 is moved upward by the opening and closing cylinder 174 to open the shield 171, and thus the transfer bed 150 Is able to enter the inside of the ultraviolet curing device (160).

When the transfer bed 150 enters the ultraviolet curing machine 160, the intermediate workpiece disposed on the mold 101 is cured by ultraviolet rays to form a finished product, and at this time, the opening and closing cylinder 174 to shield the plate ( 171 is moved downward to block the external leakage of ultraviolet light.

After the UV curing is performed for a predetermined time, the transfer bed 150 is returned to the initial position. In some cases, the transfer bed 150 is continuously moved in the forward direction in the ultraviolet curing machine 160 to exit the ultraviolet curing machine 160. After exiting to the outside through the outside may be transported in the opposite direction and returned, or may be immediately transported in the opposite direction inside the UV curing unit 160 and returned.

When the transfer bed 150 is returned as described above, the shielding plate 171 is moved upward by the opening / closing cylinder 174 to the open position, and the forming roller 146 is also moved upward by the lifting cylinder 144. The motor 102 is driven at a high speed as much as possible to allow a quick return of the transfer bed 150.

The molded product placed in the mold 101 of the returned transfer bed 150 is taken out by an operator or through a separate take-out apparatus, and the product is continuously formed by repeating the above process.

On the other hand, during the forming process, the heater 152 installed in the transfer bed 150 is operated to properly adjust the temperature of the mold 101.

As described above, the UV curing molding apparatus of the present invention is the product forming is made through the resin supply, laminating and UV curing process while linearly reciprocating the transfer bed 150, the device structure is relatively simple device manufacturing cost It takes less, and the device size becomes smaller, which takes up less installation space.

In addition, the transfer speed of the mold can be increased, and in particular, the time required per cycle can be shortened by high-speed movement at the time of return after molding, thereby improving product productivity and reducing the quantity and manpower required for operation. Therefore, the production cost can be reduced.

Furthermore, since the transfer path of the transfer bed 150 is a straight reciprocating path, the heater 152 can be installed through a simple wiring, and thus, the mold temperature can be properly adjusted to control the mold temperature. .

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

1 is a plan view showing a conventional ultraviolet curing molding apparatus.

Figure 2 is a perspective view showing an embodiment of an ultraviolet curing molding apparatus according to the present invention.

3 is a front view of the molding apparatus of the present invention shown in FIG.

4 is a plan view of the molding apparatus of the present invention shown in FIG.

5 is a side view of the molding apparatus of the present invention shown in FIG.

Description of the Related Art

100: body 101: mold

102: motor 110: transfer guide

111: slider 120: feed screw

130: resin feeder 131: reciprocating transfer table

132: movable block 133: dispenser

140: laminator 141: fixed block

142: mounting table 143: guide bar

144: lifting cylinder 145: roller support block

146: forming roller 150: transfer bed

152: heater 160: UV curing

161: UV irradiator 170: shield

171: shield plate 172: support plate

173: guide bar 174: opening and closing cylinder

Claims (9)

A main body provided with an installation surface; A linear feed guide provided on the installation surface of the main body; A transfer screw installed in parallel with the transfer guide; A motor for rotating the transfer screw; A conveying bed mounted on the conveying guide and screwed to the conveying screw to move forward and retract along the conveying guide by rotation of the conveying screw; A resin feeder installed on an upper side of the transfer guide and having a dispenser for supplying resin to the mold; A laminator installed at a rear end of the resin feeder and having a forming roller for press molding the resin applied to the mold; And And an ultraviolet curing machine installed at the rear end of the laminator and configured to irradiate and cure the molded article disposed on the mold by ultraviolet rays. The method of claim 1, The transfer guide is UV curing molding apparatus, characterized in that consisting of a guide rail fixed to the main body and a LM guide including a slider movably coupled to the guide rail. The method of claim 1, The motor is ultraviolet curing molding apparatus, characterized in that consisting of a servo motor that is controlled by the speed and position by the controller. The method of claim 1, Ultraviolet curing molding apparatus, characterized in that the heater for controlling the temperature of the mold is installed in the transfer bed. The method of claim 1, The resin feeder may include a reciprocating carriage installed in a transverse direction above the transfer guide, a movable block movably coupled to the reciprocating carriage, and at least one dispenser coupled to the movable block. UV curing molding device. The method of claim 5, And said reciprocating carriage has an electric or fluid actuator for reciprocating said movable block in horizontal and horizontal directions. The method of claim 1, The laminator may include a guide bar installed on both sides of the transfer guide upwardly, a mounting rod horizontally coupled to an upper end of the guide bar, and a roller support block installed on both sides of the guide roller to support both sides of the forming roller; Ultraviolet curing molding apparatus characterized in that it comprises a lifting cylinder which is connected between the mounting table and the roller support block to move the forming roller up and down according to the stretch. The method of claim 1, Ultraviolet curing molding apparatus characterized in that it further comprises a shield for blocking the leakage of ultraviolet rays by opening and closing the entrance and exit of the ultraviolet curing. The method of claim 8, The shield includes a cover part forming a passage communicating with an entrance and exit of the ultraviolet curing machine, a support plate installed upright on an upper part of the cover part, a shield plate coupled to the support plate so as to be movable up and down, and the shield plate in the cover part. Ultraviolet curing molding apparatus comprising an opening and closing cylinder for moving to the outside / opening and closing the entrance and exit of the ultraviolet curing machine.

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