KR102095050B1 - Apparatus for printing pattern on molded product by adjusting slope of pad - Google Patents

Abstract

The present invention provides a formed product pad printing apparatus capable of adjusting an inclination angle of a pad. More specifically, the apparatus prints text or a design on a surface of a printing target fixed on a jig, and comprises: a jig transport unit which supports and fixes the printing target, and is controlled to be rotated; a printing unit including a horizontal transport means being horizontally installed on one side of the jig transport unit and retreating and advancing towards the jig transport unit, a support frame vertically installed on an upper portion of the horizontal transport means, a vertical transport means to vertically move along the support frame, a printing means including a printing pad being coupled to the vertical transport means and pressing the surface of the printing target to print, and a pad angle adjustment means being arranged between the vertical transport means and the printing pad and rotating the printing means by a prescribed angle to adjust an inclination angle of the printing pad; and a printing pattern providing unit which is arranged on a lower side of the printing unit, has one or more metal plates being installed thereon to be replaced and having a design or text etched thereon, and supplies ink to the metal plates.

Description

Pad printing device with adjustable pad inclination angle {Apparatus for printing pattern on molded product by adjusting slope of pad}

The present invention relates to a pad printing device for a molded product, and more particularly, to a pad printing device for a molded product using a pad on the surface of a product molded from synthetic resin or metal to print letters, pictures or logos.

The pad printing machine applies ink to the metal plate with various patterns, such as letters, pictures, or logos, and presses the ink applied to the etched part with the pad to transfer the ink transferred to the pad again to be printed (resin or metal material. Product).

It is mainly used for printing letters, pictures, logos, and other patterns on the outer surface of products made by injection molding or cases made of resin for electronic products.

In particular, in the case of a plastic container manufactured by injection molding, it is common to have no pattern on the surface, but since the appearance design of all products has recently been emphasized, the printing of various patterns or characters on the outer surface of various molded products will increase significantly. It is expected.

1 is a view showing a conventional pad type 5 degree printing machine.

Specifically, "a printing machine for printing characters, pictures or logos in a plurality of places using a pad on a printed object such as a resin product. The printing machine is installed to be movable in the front-rear direction on a base plate installed inside the frame. A first transfer plate; a second transfer plate installed to be movable in the left-right direction along the LM guide from the top of the first transfer plate; a rotating plate installed to be rotated at an angle according to the operation of the rotation unit at the top of the second transfer plate ; The jig fixing plate is installed to be detachably mounted on the upper part of the rotating plate, and a jig for fixing an object to be printed is installed on the upper part. The corrosion plate is formed and mounted on the top of the fixing plate, and is in contact with the upper surface of the corrosion plate. An ink supply unit having a lock installed to fill the intaglio with ink cup and a first air cylinder for driving the fixture; transfer ink filled in the intaglio of the corrosion plate to avoid being fixed to the jig A printing pad for reprinting and printing on printed matter; installed on the upper portion of the frame, and configured to include a pad operation unit for moving the printing pad in the vertical direction and the front-rear direction. "

In the case of a printing machine having the above-described configuration, since a cylinder for moving the printing pad is mounted for each printing pad, in printing a plurality of places, such as letters, pictures or logos, using pads on the surface of an object (resin product). , After one pad finishes printing, the next pad does not work, but while one pad is printing, the next pad is moved to the top of the position to be printed in advance, waiting, and then changing the position of the object to be printed. At the same time, since printing is performed immediately, printing is performed at an extremely high speed in response to various sizes and printing positions of the product to be printed, and the orientation of the printing pad is fixed and the object is rotated within a certain angle range. In addition, since the position can be moved to be inclined, the direction of the printing position changes or Even if part of the picture can be accurate printing.

However, if the side of the substrate is inclined, the slope of the substrate must be adjusted.

In order to adjust the inclination of the substrate, the jig for fixing the substrate must be rotated. In this case, the structure is complicated and it is difficult to accurately adjust the inclination. Also, even if the inclination is adjusted, when the object is rotated, the inclination must be re-adjusted, which is very cumbersome and delays the process.

Republic of Korea Registered Patent 10-0952897 (2010.4.7.) "Printer for display device panel and its printing method" Republic of Korea Registered Patent 10-1403867 (2014.5.29.) "Pad type 5 degree printing machine" Republic of Korea Registered Patent 10-1976474 (2019.5.2.) "Pad printing device with labeling function and labeling and pad printing method using the same"

Accordingly, the present invention is to solve the above-described problem, the object of the present invention is to mount the printed object mounted on a jig to print patterns or characters on an inclined substrate, the inclination angle of the pad performing printing in a fixed state It is to provide an adjustable molding product pad printing apparatus.

Molded product pad printing device capable of adjusting the pad inclination angle according to the present invention for achieving the above object is a device for printing characters or patterns on the surface of a printed object fixed to a jig, supporting, fixing and rotating the printed material A jig transfer unit that is controlled to be possible; The jig transport unit is horizontally installed to move forward and backward toward the jig transport unit which is horizontally installed on one side, a support frame vertically installed above the horizontal transport unit, and vertical transport means that moves vertically along the support frame, and A printing means coupled to the vertical conveying means and comprising a printing pad for printing by pressing the surface of the object to be printed, provided between the vertical conveying means and the printing pad, and rotating the printing means at a constant angle to adjust the inclination angle of the printing pad Printing unit consisting of a pad angle adjustment means; It is provided on the lower side of the printing unit, a pattern or character is etched one or more metal plates are replaceably installed, a printing pattern providing unit for supplying ink to the metal plate; may be made to include.

Here, the pad angle adjustment means, a pad rotating cylinder consisting of a fixed body coupled to the vertical transfer means, and a rotating body rotatably coupled to the fixed body; Adjusting bolts fastened to both sides of the upper portion of the rotating body; One or more stoppers protruding from the edge of the rotating body; including, the rotation angle of the rotating body can be adjusted while the stopper is applied to the adjustment bolt when the rotating body rotates.

In addition, the horizontal conveying means may include a printing screw horizontally installed toward an object to be printed on an upper surface of a cradle installed on one side of the jig conveying part, and a printing slider screwed to and reciprocated from the printing screw.

In addition, the support frame may include a support rod vertically installed on the upper surface of the printing slider, a support plate coupled to one side of the support rod, and a support bracket connecting the support plate with the support rod.

In addition, the vertical transfer means, a pair of lifting rails vertically arranged on the support plate, a lifting slider seated on the lifting rail, and a lifting cylinder installed below the support plate to lift the lifting slider It can be done.

On the other hand, the printing means includes an angle attached to the rotating body, a pad mounting hole coupled to an end of the angle, a pad block detachably attached to the pad mounting hole, and a printing pad coupled to the pad block. It is configurable including.

As another example, the printing unit is also provided on the other side of the jig transfer unit, it is possible to simultaneously print both sides of the object to be printed.

According to the present invention described above, by accurately adjusting the inclination angle of the printing pad in a fixed state without rotating the substrate having various side inclination angles, it is possible to perform accurate printing on the side surfaces of various shapes.

1 is a view showing a conventional pad-type printing machine
Figure 2 is a perspective view showing the overall structure of a pad printing apparatus for a molded product capable of adjusting the pad inclination angle according to an embodiment of the present invention
Figure 3 is a partial cross-sectional view showing the structure of the jig transfer unit of the present invention shown in Figure 2
Figure 4 is a partial perspective view showing the structure of the printing unit of the present invention shown in Figure 2
Figure 5 is a perspective view showing a pad angle adjustment means of the present invention shown in Figure 4
Figure 6 is a perspective view showing the structure of the print pattern providing unit of the present invention
Figure 7 is an operating state of the pad angle adjustment means of the present invention
Figure 8 is an operating state showing the simultaneous printing state of both sides in the present invention

Hereinafter, an embodiment according to the present invention will be described in more detail with reference to the accompanying drawings.

For reference, the description with reference to the drawings is for easier understanding of the present invention, and the scope of the present invention is not limited thereto. And in describing the present invention, when it is determined that a detailed description of a related known technology may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted.

2 is a perspective view showing the overall structure of a pad printing apparatus for a molded product capable of adjusting a pad inclination angle according to an embodiment of the present invention.

The present invention relates to a pad printing apparatus for printing characters or patterns on a surface of a molded product made of a largely molded metal or resin material, a jig transfer unit capable of linearly transferring and rotating a molded product to be printed in a fixed state, the jig It may be configured to include a printing unit for printing on the side of the object to be transported and rotated by the sending unit, a printing pattern providing unit for printing patterns and characters to be etched and providing ink.

First, the jig transfer unit will be described with reference to FIG. 3 together. 3 is a partial cross-sectional view showing the structure of the jig transfer unit of the present invention shown in FIG.

The jig transfer unit 100 may be configured to include a transfer rail 110, a transfer screw 120, a transfer slider 130, a jig rotation cylinder 140, a jig plate 150, and a jig 160.

The transport rail 110 is horizontally installed in the longitudinal direction at the rear end of the supply unit 100, that is, in the direction in which the object is to be printed. At this time, the transfer rail 110 is a pair of spaced apart from each other are arranged parallel to each other.

In addition, a transfer screw 120 is horizontally installed between the transfer rails 110. The transfer screw 120 is rotationally driven by a separate motor.

The transfer screw 120 is provided with a transfer slider 130 that is screwed. Both sides of the transport slider 130 are seated on the transport rail 110, respectively, and a movement path is guided.

Therefore, when the transfer screw 120 is driven forward or reverse, the transfer slider 130 may be reciprocated.

In addition, a jig rotation cylinder 140 is installed on the upper surface of the transfer slider 130 to rotate the jig.

A jig plate 150 is coupled to the jig rotation cylinder 140. The jig 160 is coupled to the upper surface of the jig plate 150. And the object to be printed is fixed to the jig 160.

As illustrated, when the object to be printed is in the shape of a container, the object to be printed may be fixed while being covered with the jig 160. If the object is of a different shape, a jig having a shape corresponding thereto may be provided.

The jig 160 is preferably a structure that can be attached and detached so as to fix the printed object of various sizes. That is, by assembling or separating jig blocks of different sizes, all containers of different sizes may be fixed.

Since it has such a structure, the object to be printed can be rotated at the same time while being transferred straight to the place where the printing unit 200 is located, so that the side to be printed faces the printing unit 200.

On the other hand, clampers 270 are provided on both sides of the jig plate 150 to clamp the edge of the object to be fixed to the jig 160.

For reference, the jig transfer unit 100 may be provided with one or more may be sequentially printed one or more objects to be printed at the same time.

Next, the printing unit will be described with reference to FIGS. 4 and 5 together. 4 is a partial perspective view showing the structure of the printing unit of the present invention shown in FIG. 2, and FIG. 5 is a perspective view showing the pad angle adjusting means of the present invention shown in FIG.

The printing unit 200 may be composed of a horizontal conveying means 210, a support frame 220, a vertical conveying means 230, a pad angle adjusting means 240 and a printing means 250.

The horizontal conveying means 210 is a configuration for conveying the printing means 250 in the front-rear direction, that is, in a direction in which the object to be printed approaches or moves away, including a printing screw 211 and a printing slider 212 Can be configured.

The printing screw 211 is installed on the upper surface of the table-shaped cradle 260 installed on one side of the jig transfer unit 100.

The printing screw 211 is horizontally installed toward the jig transfer unit 100 to which the object to be printed is fixed. In other words, the transfer rail 110 is vertically arranged. At this time, the printing screw 211 is rotationally driven by a motor (M).

In addition, a printing slider 212 is screwed to the printing screw 211 to move forward or backward by a forward rotation or reverse rotation of the printing screw 211.

The support frame 220 is for supporting the vertical transfer means, and may be composed of a support rod 221, a support plate 222, and a support bracket 223.

The support rod 221 is vertically placed on the upper surface of the printing screw 211.

And one side of the support rod 221 is coupled to the support plate 222 in a vertically standing state.

At this time, the support plate 222 is connected to the support rod 221 by a support bracket 223, and the support bracket 223 can be released to adjust the separation and height.

The vertical transfer means 230 is a configuration for transferring the printing means 250 in the vertical direction, it may be composed of a lifting rail 231, the lifting slider 232, the lifting cylinder 233.

The lifting rails 231 are vertically spaced from a pair of support plates 222.

In addition, the elevating slider 232 is seated on the elevating rail 231 to move up and down.

In addition, the elevating slider 232 is elevated by the elevating cylinder 233 provided below the support plate 222.

The pad angle adjustment means 240 is a configuration for rotating the printing means 250 within a certain angle, it may be composed of a pad rotation cylinder 243, the adjustment bolt 244, the stopper 245.

The pad rotation cylinder 243 is a cylinder that provides rotational driving force by pneumatic or hydraulic pressure, and may be composed of a fixed body 241 and a rotating body 242. The fixing body 241 is attached and fixed to the lifting slider 232.

And the rotating body 242 is rotatably driven to the fixed body 241 is coupled.

The rotating body 242 may be rotated forward or reverse within a certain angle relative to the fixed body 241 by hydraulic pressure or pneumatic pressure. Since the driving principle of the rotating cylinder is known, detailed description is omitted.

The adjustment bolt 244 is provided on the upper side of the rotating body (242).

To this end, the adjustment platform 246 is coupled to the lifting cylinder 233, and the adjustment bolt 244 is fastened through both ends of the adjustment table 246.

By moving the adjustment bolt 244 up and down by rotation, the length protruding and extending to the lower side of the adjustment table 246 may be adjusted.

And the stopper 245 is protruded and formed at the edge of the rotating body 242.

The stopper 245 is for limiting the rotation angle of the rotating body 242, and a pair may be formed at a constant angle.

In the present invention, the rotating body 242 may be rotated within a 90 ° range, and the stopper 245 also forms 90 °.

Therefore, even if the rotating body 242 is rotated in one direction, any one of the stoppers 245 is caught by any one of the adjusting bolts 244 and cannot rotate any more.

In addition, even if the rotating body 242 is rotated in the other direction, the other stopper 245 is caught by the other adjustment bolt 244 and can no longer rotate.

That is, the rotating body 242 is rotatable only within 90 °.

However, by adjusting the protruding length of the adjustment bolt 244, the rotation angle of the rotating body 242 can be changed.

For example, when the protruding length of the adjustment bolt 244 is extended, the rotation angle of the rotating body 242 is reduced than 90 °, and when the protruding length is reduced, the rotation angle of the rotating body 242 can be larger than 90 °. have. This will be described later, but the inclination angle of the printing pad 254 linked to the rotating body 242 can be arbitrarily adjusted.

The printing means 250 is a configuration that performs printing by directly pressing the surface of the object to be printed, and may include an angle 251, a pad mounting hole 252, a pad block 253, and a printing pad 254. .

The angle 251 may be formed in a 'b' shape and coupled to the rotating body 242 to be rotationally driven.

Further, a pad mounting hole 252 may be coupled to an end of the angle 251, and a pad block 253 may be fastened to the pad mounting hole 252.

In addition, a printing pad 254 is attached to the pad block 253. The printing pad 254 is made of silicone or rubber.

In addition, it is preferable that the pad pad 253 integrated with the printing pad 254 is attached to the pad mounting hole 252 fixed to the angle 251 for detachment or replacement.

Therefore, when the object to be printed (P) is transported by the jig transfer unit 100 and stops in a fixed position, the elevating slider 232 descends along the elevating rail 231 and the elevating slider 232 When the printing pad 254 descends by descending and is in close contact with the printing pattern providing unit 300 positioned at the lower side, ink is transferred to the printing pad 254, and the printing increases as the lifting slider 232 rises. When the pad 254 rises, the printing pad 254 is rotated by the pad rotation cylinder 243 to form a vertical or inclined shape.

And when the printing pad 254 is rotated at a right angle toward the side of the object to be printed, the printing screw 211 is rotationally driven, and the printing slider 212 is advanced so that the printing pad 254 is the side of the object to be printed. The ink is retransferred while pressing to print.

One or more of the printing units 200 may be installed. That is, it may be arranged on one side or both sides of the jig transfer unit 100 so as to correspond to the number of side surfaces required to be printed.

Next, the printing pattern providing unit will be described with reference to FIG. 6 together. 6 is a perspective view showing the structure of the printing pattern providing unit of the present invention.

The printing pattern providing unit 300 is configured to supply patterns such as patterns or characters to be printed on the printing pad 254 of the printing unit 200 and ink to the pattern, such as a metal plate 310 and a linear guide 320 ), The arm 330 and the ink pack 340.

The metal plate 310 is a pattern to be printed, for example, a metal plate type in which patterns such as letters, drawings, drawings, designs, etc. are etched, and is provided horizontally under the printing unit 200. That is, it is disposed directly under the printing pad 254. At this time, the metal plate 310 may use a copper plate.

In addition, one or more metal plates 310 may be provided to print one or more patterns in one printing unit 200.

In addition, the metal plate 310 is a detachable structure to be replaceable. That is, it is possible to print different letters or patterns by replacing with a different metal plate.

The linear guide 320, the arm 330 and the ink pack 340 are configured to periodically and repeatedly supply ink.

The linear guide 320 is horizontally arranged side by side on one side of the metal plate 310. As shown, it may be disposed between the printing slider 212 of the printing unit 200 and the metal plate 310.

In addition, an arm is mounted on the block of the linear guide 320 to move horizontally in a straight line.

In addition, an ink pack 340 is coupled to an end of the arm. The ink pack 340 is filled with ink therein.

Accordingly, the ink pack 340 may move forward by the arm, supply ink while being in close contact with the intaglio of any one of the metal plates 310, and move backward to wait.

Since it is a known technique to supply ink from the ink pack 340 to the metal plate 310, detailed description is omitted.

Hereinafter, an operating state of the present invention will be described with reference to FIG. 7. 7 is an operating state diagram of the pad angle adjusting means of the present invention. Here, (a) is the case where the side of the substrate is vertical, and (b) is the case where the side of the substrate is inclined.

In the case of (a), the rotating body 242 of the pad rotation cylinder 243 rotates 90 ° to advance the printing means 250 in a horizontal state, and the pressing surface of the printing pad 254 Printing is performed accurately while being in close contact with the object to be printed (P).

However, as shown in (b), when the side surface of the object P is inclined, the operator must adjust any one of the adjustment bolts 244.

That is, when the adjusting bolt 244 is rotated to protrude and extend further downward, even if the rotating body 242 rotates, the stopper 245 is caught by the adjusting bolt 244 so that the rotating body 242 is further Can't turn over.

Therefore, since the printing means 250 is inclined downward and the pressing surface of the printing pad 254 has the same inclination as the side slope of the object P to be printed, when the printing means 250 is advanced, the printing pad 254 ), The pressurized surface of the substrate can be precisely adhered to the object P.

In the present invention, it is possible to have a structure in which both sides of the object to be printed P are simultaneously printed.

8 is an operational state diagram showing a simultaneous printing state on both sides of the present invention.

The above-described printing unit 200 may be provided to face the one side and the other side with respect to the jig transfer unit 100, respectively.

That is, as shown, the printing pad 254 prints both sides of the object P at a time by controlling the printing unit 200 to operate simultaneously or with a slight time difference on both sides of the jig transfer unit 100. can do.

Although the exemplary embodiments of the present invention have been described with reference to the drawings, those skilled in the art to which the present invention pertains will be able to perform various applications and modifications within the scope of the present invention based on the above. Therefore, the scope of the present invention should not be limited to the described embodiments, and should be defined not only by the claims described below but also by the claims and equivalents.

100: jig transfer unit 110: transfer rail
120: transfer screw 130: transfer slider
140: jig rotating cylinder 150: jig plate
160: jig 170: clamper
200: printing unit 210: horizontal transfer means
211: Printing screw 212: Printing slider
220: support frame 221: support rod
222: support plate 223: support bracket
230: vertical transportation means 231: lifting rail
232: elevating slider 233: elevating cylinder
240: pad angle adjustment means 241: fixed body
242: rotating body 243: pad rotating cylinder
244: adjustment bolt 245: stopper
250: printing means 251: angle
252: pad mounting port 253: pad block
254: printing pad 260: holder
300: printing pattern providing unit
310: Metal plate 320: Linear guide
330: arm 340: ink pack
P: Printed object M: Motor

Claims (7)

A jig transfer unit that is supported, fixed, and rotatably controlled to be printed; A horizontal conveying means for moving back and forth toward the jig conveying part horizontally installed on one side of the jig conveying part, a supporting frame vertically installed above the horizontal conveying means, and vertical conveying means moving up and down along the supporting frame, and A printing means coupled to the vertical conveying means and including a printing pad for printing by pressing the surface of the object to be printed, and provided between the vertical conveying means and the printing pad, and rotating the printing means at a constant angle to adjust the inclination angle of the printing pad Printing unit consisting of a pad angle adjustment means; And a printing pattern providing unit provided on the lower side of the printing unit, wherein at least one metal plate on which patterns or characters are etched is installed, and supplying ink to the metal plate. In the printing device,
The pad angle adjustment means,
A pad rotation cylinder comprising a fixed body coupled to the vertical transfer means and a rotating body rotatably coupled to the fixed body;
Adjusting bolts fastened to both sides of the upper portion of the rotating body;
One or more stoppers protruding from the edge of the rotating body; including, a pad tilt angle adjustment characterized in that the rotation angle of the rotating body is adjusted while the stopper is caught by the adjusting bolt when the rotating body rotates Molded product pad printing device. delete According to claim 1,
The horizontal transfer means,
A molded product capable of adjusting the pad inclination angle, characterized in that it comprises a printing screw installed horizontally toward an object to be printed on the upper surface of the cradle installed on one side of the jig transfer part, and a printing slider screwed to and reciprocated from the printing screw. Pad printing device. The method of claim 3,
The support frame,
Pad printing with adjustable pad inclination angle, characterized in that it comprises a support rod installed vertically on the upper surface of the printing slider, a support plate coupled to one side of the support rod, and a support bracket connecting the support plate with the support rod. Device. The method of claim 4,
The vertical transfer means,
Pad inclination angle adjustment characterized in that it comprises a pair of lifting rails vertically arranged on the support plate, a lifting slider seated on the lifting rail, and a lifting cylinder installed on a lower portion of the supporting plate to elevate the lifting slider. Molded product pad printing device. The method of claim 5,
The printing means,
Characterized in that it comprises an angle attached to the rotating body, a pad mounting hole coupled to the end of the angle, a pad block replaceable detachably attached to the pad mounting hole, and a printing pad coupled to the pad block. Pad printing device for molded products with adjustable pad tilt angle. According to claim 1,
The printing unit is also provided on the other side of the jig transfer unit,
A pad printing apparatus for a molded product capable of adjusting the pad inclination angle, wherein both sides of an object to be printed can be printed simultaneously.

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