KR102099466B1 - Automatic system for printing many colors on many sides of molded product by pad - Google Patents

Abstract

Disclosed is an automatic system for multi-color and multi-color pad printing of a molded product. More specifically, a system for automatically printing characters or patterns on surfaces of a molded product comprises: a supply unit which supplies an object to be printed at predetermined distance and time intervals and transfers the object to a jig transfer unit; the jig transfer unit facing the supply unit at one sidet, and fixing and rotating the object to be printed, transferred from the supply unit, and making the object reciprocate horizontally; one or more printing units which are arranged on both sides of the jig transfer unit and perform printing by pressing side surfaces of the object with a printing pad attached thereto; a printing pattern providing unit which is provided on a lower side of the printing units, in which one or more replaceable metal plates etched with patterns or characters are installed, and which supplies ink to the metal plates; and a discharge unit which is installed on the other side of the jig transfer unit, can perform two-axis movement, and sucks and discharge the object to be printed after printing is completed.

Description

Automatic system for printing many colors on many sides of molded product by pad}

The present invention relates to a multi-faced and multi-color pad printing automatic system of a molded product, and specifically, a face of a molded product that can automatically print patterns such as letters, pictures or logos on the surface of a product molded from synthetic resin or metal material. And an automatic multi-color pad printing system.

The pad printing machine applies ink to the printing pattern providing part where various patterns such as letters, pictures or logos are etched, and then presses the ink applied to the etched part with the pad to re-transmit the ink transferred to the pad to be printed (resin or metal. This is a method of printing by retransfering to a product made of material).

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, most of the prior arts are made to automatically perform the printing itself, and the processes of supplying, fixing, and ejecting and collecting the actual object to be printed had to be performed semi-automatically or manually. Therefore, the process was slow and productivity decreased.

In addition, it was difficult and complicated to attempt to print all sides of the object to be printed or in various colors.

Also, when the side of the substrate is inclined, it is difficult to accurately adjust the slope because it is a method of adjusting the slope of the substrate. In addition, even if the inclination is adjusted, it is very cumbersome and the process is delayed because the inclination must be readjusted again when the object is rotated.

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-mentioned problems, the object of the present invention is to automatically supply the multi-sided and multi-colored pad printing of a molded product that fully automates the entire process of supplying, fixing, printing, discharging, and collecting the printed object to be molded. It is to provide a system.

Another object of the present invention is to provide a multi-sided and multi-color pad printing automatic system of a molded product capable of printing on both sides while rotating an object to be printed and printing in various colors.

Another object of the present invention is to provide a multi-sided and multi-color pad printing automatic system of a molded product capable of accurately printing on a printed object by tilting the printing pad without tilting the jig when the side of the printed object is inclined.

The multi-sided and multi-color pad printing automatic system of the molded product according to the present invention for achieving the above object is a system for automatically printing characters or patterns on the surface of a molded product, wherein the object to be printed at a certain distance and time interval A supply unit that supplies and delivers the following jig transfer unit; A jig transfer unit which one side faces the supply unit, fixes and rotates an object transferred from the supply unit, and horizontally reciprocates; A printing unit which is arranged on at least one side of the jig transfer unit, and which prints by attaching a printing pad to press the side surface of the printed object; A printing pattern providing unit provided on the lower side of the printing unit, wherein one or more metal plates on which patterns or characters are etched are installed to be replaceable and supply ink to the metal plates; A discharge unit which is installed on the other side of the jig transfer unit, is capable of two-axis movement, and adsorbs and discharges the printed object after printing; It can be made including.

Here, the supply unit, a conveyor for horizontally moving the printed object, a guide plate vertically installed along the longitudinal direction on both sides of the conveyor, and a gap adjusting means provided on the rear side of the guide plate to adjust the spacing of the guide plate And, a stopper that is provided on one end of the conveyor to stop the object to be moved, and may include a delivery means for absorbing the object to be stopped by the stopper and transferring it to the jig transfer unit.

In addition, the jig transfer unit, a pair of transfer rails arranged along the traveling direction of an object to be printed, and transfer screws arranged between the transfer rails to be rotationally driven, both sides are seated on the transfer rails, and the center is provided with the transfer screws. Screw-coupled transfer slider reciprocated by rotation of the transfer screw, a jig rotation cylinder installed on the upper surface of the transfer slider, a jig plate coupled to the jig rotation cylinder, and rotationally driven, and an upper portion of the jig plate It can be made by including a jig fixed to the surface.

In addition, the printing unit, the mounting provided on both sides of the jig transfer unit, the print screw is installed horizontally on the upper surface of the mount, the print screw is screwed to the print screw reciprocating, and the upper surface of the printing slider A support rod to be installed, a support plate coupled to the support rod, a pair of lifting rails arranged on the support plate, an elevation slider on which both sides are seated on the rail, an elevation cylinder for elevating the elevation slider, and the elevation cylinder It can be made of a printing rotation cylinder coupled to, and coupled to the printing rotation cylinder, is rotationally driven and comprises printing means including a printing pad.

In another embodiment of the printing unit, a mounting bracket provided on both sides of the jig transport unit, a printing rail in which a pair is horizontally arranged side by side on the mounting base, a supporting frame slidingly seated on the printing rail, and a lower side of the supporting frame The printing screw is provided horizontally, the printing slider coupled to the lower portion of the support frame and screwed to the printing screw to move reciprocally, the vertically installed screw in the front center of the support frame, and the lifting screw It includes a lifting slider that is screwed and lifted, and a positive and negative rotating rotary cylinder provided on each side of the lifting and sliding cylinder, and a positive and negative printing means rotatably provided on the positive and negative rotating cylinder, and pressurizing and printing two printed objects simultaneously. It can be done.

In addition, the print pattern providing unit is provided horizontally on the lower side of the printing unit and at least one metal plate with a pattern or character etched, a linear guide provided side by side on the metal plate, and an arm coupled to a block of the linear guide. , It may be configured to include an ink pack coupled to the end of the arm and filled with ink therein.

On the other hand, the discharge portion, a pair of horizontal rails that are horizontally spaced up and down, and horizontal sliders horizontally mounted to each of the horizontal rails, vertical rails vertically coupled to the horizontal sliders, and the vertical rails It may be configured to include a vertical slider seated on the vertical movement, and discharge means coupled to the vertical slider and evacuating and discharging the printed object to be printed.

On one side of the discharge portion, an inspection unit for inspecting a print state on the printed object to be printed may be further included, or on the other side of the discharge portion, a drying unit for drying the discharged object may be further included.

According to the present invention described above has the following effects.

First, it is possible to fully automate the process of printing multi-colored patterns or characters on various sides of a printed object, thereby dramatically improving productivity and greatly reducing costs.

Second, even if the side of the object to be printed is inclined, the print pad is excellent because the printing pad can be inclined without tilting the jig to print accurately on the object.

Third, even if the object is different in size or shape, various objects can be printed by adjusting the jig and the printing unit accordingly.

1 is a view showing a conventional pad-type printing machine
Figure 2 is a perspective view showing the overall appearance of the multi-sided and multi-color pad printing automatic system of a molded product according to an embodiment of the present invention
Figure 3 is a partial perspective view showing the structure of the supply unit of the present invention shown in Figure 2
Figure 4 is a partial cross-sectional view showing the structure of the jig transfer unit of the present invention shown in Figure 2
Figure 5 is a partial perspective view showing the structure of the printing unit of the present invention shown in Figure 2
Figure 6 is a partial perspective view showing another embodiment of the printing unit of the present invention shown in Figure 5
Figure 7 is a perspective view showing the structure of the print pattern providing unit of the present invention shown in Figure 2
Figure 8 is a perspective view showing the structure of the discharge portion of the present invention shown in Figure 2
9 is a process diagram showing an embodiment of a printing process using the present invention
10 is a plan view showing the position of the inspection unit and the drying unit of 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 appearance of a multi-sided and multi-color pad printing automatic system of a molded product according to an embodiment of the present invention.

The present invention relates to a system for automatically printing letters or patterns on the surface of a molded product made of a molded metal or resin material, a supply unit 100 for supplying molded products to be printed one by one and transferring them to the jig transfer unit 200, A jig transfer unit 200 for linearly transferring and rotating the transferred object in a fixed state, a printing unit 300 performing printing on the side of the object to be transferred and rotated by the jig transferring unit 200, a pattern to be printed or It may be configured to include a print pattern providing unit 500 to which characters are etched and supplied with ink, and a discharge unit 600 for discharging an object to be printed printed by the printing unit 300.

First, the supply unit will be described with reference to FIG. 3 together. 3 is a partial perspective view showing the structure of the supply unit of the present invention shown in FIG.

The supply unit 100 may be configured to include a conveyor 110, a guide plate 120, a space adjusting means 130, a stopper 140 and a delivery means 150.

The conveyor 110 is to horizontally move the object to be printed, and as shown, a pair of belts are spaced apart and installed in parallel.

In addition, each of the conveyor 110 is provided with a guide plate 120 to induce the path of the object to be moved by the conveyor 110 to become a straight line while simultaneously facing the forward direction.

In addition, a stopper 140 having a flat shape is provided at the front center of the conveyor 110 to be vertically elevated.

The stopper 140 is lifted by a separate stopper cylinder 141 and can be moved back and forth. The position of the stopper 140 can be adjusted and used according to the size of the object to be printed.

Therefore, the object to be printed moves while the stopper 140 is raised, and then stops directly under the transfer means 150.

A separate sensor is provided to detect moving objects P. Based on the detected information, it is possible to control the distance interval and the time interval between printed objects.

A gap adjusting means 130 may be provided outside the guide plate 120. The gap adjusting means 130 is for adjusting the gap between the guide plates 120 and can be manually adjusted according to the size of the printed object.

A transfer means 150 is installed on one side of the rear end of the conveyor 110.

The transfer means 150 is for transferring the object to be stopped stopped by the stopper 140 by vacuum adsorption to the jig transfer unit 200 to be described later, a horizontally installed transfer rail 151 and the transfer rail The transmission slider 152 seated on the 151, the transmission linear guide 153 vertically installed on the transmission slider 152, and the transmission bracket 154 coupled to the block of the transmission linear guide 153 ), A transmission rotation cylinder 155 coupled to the lower surface of the transmission bracket 154, and one or more transmission suction ports 156 coupled to the transmission rotation cylinder 155.

The transfer adsorption port 156 adsorbs the printed object by applying a vacuum pressure in a state in close contact with the upper surface of the printed object. Preferably, the delivery suction port 156 is preferably provided in various sizes to adsorb various sizes of printed materials.

Thus, the delivery suction port 156 can be rotated by the delivery rotary cylinder 155 to be adsorbed to match the corresponding printed object. For example, in the case of a large object to be printed, the first delivery adsorption port 156a adsorbs, and in the case of a relatively small object, the delivery adsorption port 156 rotates so that the second delivery adsorption port 156b adsorbs. You can.

Next, the jig transfer unit will be described with reference to FIG. 4 together. 4 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 200 may include a transfer rail 210, a transfer screw 220, a transfer slider 230, a jig rotation cylinder 240, a jig plate 250, and a jig 260.

The transfer rail 210 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 210 is a pair of spaced apart from each other are arranged parallel to each other.

In addition, a transfer screw 220 is horizontally installed between the transfer rails 210. The transfer screw 220 is rotationally driven by a separate motor.

The transfer screw 220 is provided with a transfer slider 230 that is screwed. Both sides of the transfer slider 230 are seated on the transfer rail 210, respectively, and a movement path is guided.

Thus, when the transfer screw 220 is driven forward or reverse, the transfer slider 230 may be reciprocated.

In addition, a jig rotation cylinder 240 is installed on the upper surface of the transfer slider 230 to rotate the jig.

A jig plate 250 is coupled to the jig rotation cylinder 240. The jig 260 is coupled to the upper surface of the jig plate 250. And the object to be printed is fixed to the jig 260.

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 260. If the object is of a different shape, a jig having a shape corresponding thereto may be provided.

The jig 260 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 linearly transferred to the place where the printing unit 300 is located, so that the side to be printed faces the printing unit 300.

On the other hand, clampers 270 are provided on both sides of the jig plate 250 to clamp an edge of the object to be fixed to the jig 260.

Next, the printing unit will be described with reference to FIG. 5 together. 5 is a partial perspective view showing the structure of the printing unit of the present invention shown in FIG.

The printing unit 300 includes a holder 310, a printing screw 320, a printing slider 330, a supporting rod 340, a supporting plate 350, a lifting rail 360, a lifting slider 370, a printing rotating cylinder ( 380), may include a printing means 390.

The cradle 310 is a frame that is provided on both sides of the transfer rail 210 of the jig transfer unit 200 to support the respective components of the printing unit 300.

The printing screw 320 is horizontally installed on the upper surface of the cradle 310. The printing screws 320 are arranged to face the jig transfer unit 200, that is, perpendicular to the transfer rail 210. At this time, the printing screw 320 is rotationally driven by a motor (M).

In addition, a printing slider 330 may be screwed to the printing screw 320 to move forward or backward by forward or reverse rotation of the printing screw 320.

In addition, a support bar 340 is vertically placed on the upper surface of the printing screw 320.

A support plate 350 is coupled to the support bar 340 by a support bracket 341. The support bracket 341 can be released and detached.

The support plate 350 is coupled in a vertically erected state, a pair of lifting rails 360 is formed.

The elevating slider 370 is seated on the elevating rail 360 to move up and down. And the lifting slider 370 is elevated by the lifting cylinder 371 provided on the lower side.

And the lifting slider 370 is provided with a printing means 390, and between the lifting slider 370 and the angle 391, a printing rotation cylinder 380 is provided to rotate the printing means 390 at a constant angle. Can be driven.

The printing means 390 may include an angle 391, a pad mounting tool 392, a pad block 393, and a printing pad 394.

The angle 391 may be formed in a 'b' shape and coupled to the printing rotation cylinder 380 to be rotationally driven.

Further, a pad mount 392 may be coupled to an end of the angle 391, and a pad block 393 may be fastened to the pad mount 392.

In addition, a printing pad 394 is attached to the pad block 393. The printing pad 394 is made of silicone or rubber.

In addition, it is preferable that the pad block 393 integrated with the printing pad 394 is detachable for mounting or replacement to the pad mounting tool 392 fixed to the angle 391.

Therefore, when the object to be printed (P) is transported by the jig transfer unit 200 and stops at a fixed position, the elevating slider 370 descends along the elevating rail 360 and the elevating slider 370 When the printing pad 394 descends by descending and is in close contact with the printing pattern providing unit 500 positioned at the lower side, ink is transferred to the printing pad 394, and the printing increases as the lifting slider 370 rises. When the pad 394 is raised, the printing pad 394 is rotated by 90 ° by the printing rotation cylinder 380.

And when the printing pad 394 is rotated at right angles to the side of the object to be printed, the printing screw 320 is rotated and the printing slider 330 is advanced so that the printing pad 394 is the side of the object to be printed. The ink is retransferred while pressing to print.

One or more of the printing units 300 may be installed. That is, it may be arranged on one side or both sides of the jig transfer unit 200 so as to correspond to the number of side surfaces of the desired printed material.

In the present invention, another embodiment of the printing unit will be further described with reference to FIG. 6. 6 is a partial perspective view showing another embodiment of the printing unit of the present invention shown in FIG. 5.

The printing unit 400 according to another embodiment has a structure in which a pair of printing pads are provided to simultaneously print on two printed matters, largely a printing rail 410, a support frame 420, and a printing screw 430 ), A printing slider 440, a lifting screw 450, a lifting slider 460, a double printing rotary cylinder 470, and a double printing means 480.

The printing rail 410 is provided on the cradle 310 and is arranged with a pair of spaced apart at a right angle toward the jig transfer unit 200.

In addition, the print rail 410 is provided with a support frame 420 on which both ends are seated and supported to be slidable.

Specifically, the support frame 420 is mounted vertically on the printing rail 410, respectively, the sliding support bar 421, the horizontal support 422 coupled across the support bars 421, and the horizontal support It may be composed of a support plate 423 vertically attached to the center of the 422 and a pair of lifting rails 424 attached and arranged on the side of the support plate 423.

In addition, a printing screw 430 is horizontally arranged under the support plate 423 and rotated by a motor M. In addition, the printing screw 430 is screwed to the printing screw 430 to be driven back and forth. At this time, the lower portion of the support plate 423 is coupled to the upper surface of the printing slider 440 so that the support plate 423 can move horizontally back and forth.

On the other hand, between the lifting rail 424 on the side of the support plate 423, the lifting screw 450 is vertically installed. The lifting screw 450 is rotationally driven by a motor.

The elevating slider 460 is screwed to the elevating screw 450 to elevate according to the forward or reverse driving of the elevating screw 450.

On the other hand, the lifting slider 460 is provided with a positive printing rotary cylinder 470 is elevated. The positive printing rotary cylinder 470 may have a structure in which a first printing rotary cylinder 471 is fixed on one side and a second printed rotary cylinder 472 is fixed on the other side.

In addition, a positive printing means 480 is coupled to the positive printing rotary cylinder 470.

The both printing means 480 is composed of a first printing means 481 coupled to the first printing rotating cylinder 471 and a second printing means 482 coupled to the second printing rotating cylinder 472. Can be.

Accordingly, the two printing means 480 may be rotated at the same time by the driving of the two printing rotating cylinder 470 to simultaneously print two objects to be printed.

The first printing means 481 includes a first angle, a first pad mounting hole, a first pad block, and a first printing pad, respectively, and the second printing means includes a second angle, a second pad mounting hole, a first It may be composed of two pad blocks and a second printing pad. Each configuration is the same as the structure of the above-described angle 391, the pad mounting tool 392, the pad block 393, and the printing pad 394, the description thereof will be omitted.

Therefore, when the jig transfer unit 200 is provided with two pieces of printed objects reaching the first printing means 481 and the second printing means 482 to simultaneously print two objects to be printed, the lifting is performed. The screw 450 is driven to rotate in the forward direction and descends of the elevating slider 370, and the first printing pad 394 and the second printing pad 394 are lowered by the lowering of the elevating slider 370. The ink is transferred while being in close contact with the providing portion.

And when the lifting screw 450 is reversely driven and the lifting slider 460 rises, and the first printing pad and the second printing pad also rise, the two printing rotation cylinders 470 drive the driving. The first printing pad and the second printing pad are rotated 90 ° to face the side of the printed object.

In this state, when the printing screw 430 is rotationally driven, the printing slider 440 advances, so that the support plate 423 advances, which causes the both printing means 480 mounted on the support plate 423 to move. Moving forward, the first printing pad and the second printing pad press each side of the object to be printed.

Next, the printing pattern providing unit will be described with reference to FIG. 7 together. 7 is a perspective view showing the structure of the print pattern providing unit of the present invention shown in FIG.

The printing pattern providing unit 500 is configured to supply patterns such as patterns or characters to be printed on the printing pad 394 of the printing unit 300 and ink to the pattern, such as a metal plate 510 and a linear guide 520 ), An arm 530 and an ink pack 540.

The metal plate 510 is a metal plate type in which a pattern to be printed, for example, a pattern such as a letter or a pattern, a picture, a design, etc. is etched is provided horizontally on the lower side of the printing unit 300. That is, it is disposed directly under the printing pad 394. At this time, the metal plate 510 may use a copper plate.

In addition, one or more metal plates 510 may be provided to print one or more patterns in one printing unit 300.

In addition, the metal plate 510 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 520, the arm 530 and the ink pack 540 are configured to periodically and repeatedly supply ink.

The linear guides 520 are horizontally arranged on one side of the metal plate 510. As illustrated, it may be disposed between the printing slider 330 of the printing unit 300 and the metal plate 510.

In addition, an arm is mounted on the block of the linear guide 520 to move horizontally in a straight line.

Also, an ink pack 540 is coupled to an end of the arm. The ink pack 540 is filled with ink therein.

Accordingly, the ink pack 540 may move forward by the arm, supply ink while being in close contact with the intaglio of any one metal plate 510, and move backward to wait.

Since it is a known technique to supply ink from the ink pack 540 to the metal plate 510, detailed description thereof will be omitted.

Next, the discharge part of the present invention will be described with reference to FIG. 8 together. 8 is a perspective view showing the structure of the discharge portion of the present invention shown in FIG.

The discharge part 600 may include a horizontal rail 610, a horizontal slider 620, a vertical rail 630, a vertical slider 640, and a discharge means 650.

The horizontal rail 610 is horizontally installed with a pair of spaced apart vertically on the other side of the jig transfer unit 200.

In addition, the horizontal sliders 620 are respectively seated on the horizontal rails 610 and horizontally reciprocated along the horizontal rails 610.

In addition, the vertical rail 630 is coupled to the top and bottom of the two horizontal sliders 620 can be reciprocated horizontally with the horizontal sliders 620.

The vertical slider 640 is seated on the vertical rail 630 to move up and down.

In addition, the vertical slider 640 is equipped with a discharging means 650 is adsorbed and transferred to the printed object to be printed is discharged to the space for collection.

The discharge means 650 may have a structure that is substantially the same as the delivery means 150.

That is, the discharge bracket 651 coupled to the vertical slider, the discharge rotation cylinder 652 coupled to the lower surface of the discharge bracket 651, and the discharge rotation cylinder 652 coupled to one or more discharge suction ports It can be composed of (653).

The discharge adsorption port 653 adsorbs the printed object by applying a vacuum pressure in a state in close contact with the upper surface of the printed object. Preferably, the discharge adsorption port 653 is preferably provided in various sizes to adsorb various sizes of printed materials. That is, the first discharge suction port 653a and the second discharge suction port 653b may be provided.

Thus, the discharge adsorption port 653 can be rotated by the discharge rotation cylinder 652 and adsorbed to fit the corresponding printed object.

Therefore, it is fixed to the jig transfer unit 200, and can be cut and moved by two-axis movement while adsorbing the printed object to be printed.

Hereinafter, an operation process of the present invention will be described with reference to FIG. 9 together. 9 is a process diagram showing an embodiment of a printing process using the present invention.

First, the printed object P placed on the conveyor 110 of the supply unit 100 moves forward by the conveyor 110, and is guided by the guide plate 120 to move linearly.

The object P to be moved is stopped by the stopper 140.

Since the transfer means 150 is operated to the upper side of the stationary object P, the transfer suction port 156 descends and lifts the upper surface of the object P under vacuum suction, and then moves horizontally. When the jig transfer unit 200 reaches the top of the jig, the vacuum of the transfer suction port 156 is released to put the printed object P down on the jig.

When the object P is seated on the jig 260 of the jig transfer unit 200, the clamper 270 operates to fix the edge of the object P by clamping it so that it does not move.

And the entire rotation of the jig transfer unit 200 by the rotational drive of the transfer screw 220 reaches the place where the printing unit 300 is located.

At this time, the printing unit 300 operates so that the printing pad 394 descends, contacts the metal plate 510 and rises and rotates with the ink transferred, so that the printing pad 394 is in a horizontal state.

In this state, when the printing slider 330 is advanced, the printing pad 394 is printed while pressing the side surface of the object P.

Importantly, when the side surface of the object P is inclined, the printing pad 394 can be set to have the same slope as the side slope of the object P by operating the printing rotation cylinder 380. .

Therefore, accurate printing can be performed without adjusting the inclination of the jig 260.

In the present invention, it is preferable that one or more printing units 300 are installed. That is, a plurality of sides are installed on both sides along the path of the jig transfer unit 200 to sequentially print various faces of the object P, or various colors can be printed. To illustrate this, see FIG. 9.

Referring to (a), the printing means 390 of the first printing unit 301 prints the first side of the object to be printed.

And, as shown in (b), while the jig transfer unit is advanced, the jig rotates 90 ° counterclockwise, and then stops in front of the first printing means 481 of the second printing unit 401.

The first printing means 481 performs printing on the second side of the stationary object P.

In addition, as shown in (c), the second printing means 482 and the third printing unit (2) of the second printing unit 401 after the jig 260 rotates 180 ° clockwise while the jig transferring unit is advanced. 302) Stop ahead.

Then, the third printing unit 302 prints different patterns or colors on the second side of the stationary object P, and the second printing means 482 of the second printing unit 401 prints on the fourth side. To perform.

In addition, as shown in (d), the jig 260 rotates 180 ° counterclockwise, and the third printing unit 302 prints a different pattern or color on the fourth side. For reference, side 1 is the side that is not printed.

When the last printing is completed, it is discharged by the discharge unit 600 and can be collected by a separate collection conveyor 900.

For reference, the objects to be discharged from the discharge unit 600 may be placed one by one on the collection conveyor 900, or may be collected after being discharged by stacking several layers.

On the other hand, in the present invention may further include an inspection unit 700 for inspecting the printing state of the object to be printed is completed, and a drying unit 800 for drying the ink. 10 is a plan view showing the positions of the inspection unit and the drying unit of the present invention.

The inspection unit 700 is to check whether the characters or patterns printed on the object to be printed correctly, as shown, may be installed on the other side of the jig transfer unit 200, one side of the discharge unit 600.

Specifically, when the jig transport unit 200 reaches the final position, the inspection unit 700 is installed on one side or both sides of the jig transport unit 200 to inspect the printed state of the printed object mounted on the jig transport unit 200 can do.

The inspection unit 700 may be a vision camera so as to determine the printing state by taking an image, but is not limited thereto.

In addition, the drying unit 800 is to dry the ink printed on the object to be rapidly dried. Referring to the illustrated bar, the discharge unit 600 may be installed on the other side of the discharge unit 600 and on one side of the inspection unit 700.

The drying unit 800 may be provided with a nozzle (not shown) to dry by spraying warm air, and a plurality of nozzles may be provided to have a structure capable of simultaneously spraying warm air on each surface of the printed object.

The discharge unit 600 may discharge the printed object that has been inspected by the inspection unit 700, move it to the drying unit 800, dry it for a certain time, and discharge it to the collection conveyor 900 to collect it. have.

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: supply unit
110: conveyor 120: guide plate
130: spacing adjustment means 140: stopper
141: stopper cylinder 150: transmission means
151: transmission rail 152: transmission slider
153: Transmission Linear Guide 154: Transmission Bracket
155: transmission rotary cylinder 156: transmission suction port
156a: first delivery suction port 156b: second delivery suction port
200: jig transfer unit 210: transfer rail
220: transfer screw 230: transfer slider
240: jig rotating cylinder 250: jig plate
260: jig 270: clamper
300: printing unit 310: holder
320: printing screw 330: printing slider
340: support rod 341: support bracket
350: support plate 360: lifting rail
370: elevating slider 371: elevating cylinder
380: printing rotary cylinder 390: printing means
391: Angle 392: Pad mounting
393: Pad block 394: Printing pad
400: printing unit
410: printing rail 420: support frame
421: support rod 422: horizontal support
423: support plate 424: lifting rail
430: printing screw 440: printing slider
450: lifting screw 460: lifting slider
470: two printing rotary cylinder 471: first printing rotary cylinder
472: Second printing rotary cylinder 480: Both printing means
481: first printing means 482: second printing means
500: printing pattern providing unit
510: Metal plate 520: Linear guide
530: Arm 540: Ink Pack
600: outlet
610: Horizontal rail 620: Horizontal slider
630: Vertical rail 640: Vertical slider
650: discharge means 651: discharge bracket
652: Discharge rotation cylinder 653: Discharge suction port
653a: First discharge suction port 653b: Second discharge suction port
700: inspection unit
800: drying unit
900: collection conveyor
P: Printed object M: Motor

Claims (9)

In the system for automatically printing text or patterns on the surface of a molded product,
A conveyor for horizontally moving the object to be printed, a guide plate vertically installed along the length direction on both sides of the conveyor, a gap adjusting means provided on the rear side of the guide plate to adjust the spacing of the guide plate, and one end of the conveyor It comprises a stopper for stopping the object to be moved is provided, and a delivery unit for absorbing the object to be stopped by the stopper and transferring means for transferring it to the jig transfer unit, the supply unit for supplying the object at a predetermined distance and time interval;
A pair of transfer rails having one side facing the supply portion and arranged along the traveling direction of the object to be printed, and transfer screws arranged between the transfer rails to be rotationally driven, and both sides are seated on the transfer rails, and the center is provided with the transfer screws. Screw-coupled transfer slider reciprocated by rotation of the transfer screw, a jig rotation cylinder installed on the upper surface of the transfer slider, a jig plate coupled to the jig rotation cylinder, and rotationally driven, and an upper portion of the jig plate It comprises a jig fixed to the surface, the jig transfer unit for horizontally reciprocating while fixing and rotating the printed object transferred from the supply unit;
A printing unit which is arranged on at least one side of the jig transfer unit, and which prints by attaching a printing pad to press the side surface of the printed object;
A printing pattern providing unit provided on the lower side of the printing unit, wherein one or more metal plates on which patterns or characters are etched are installed to be replaceable and supply ink to the metal plates;
A discharge unit which is installed on the other side of the jig transfer unit, is capable of two-axis movement, and adsorbs and discharges the printed object after printing; Multi-sided and multi-color pad printing automatic system of a molded product characterized in that it comprises a. delete delete According to claim 1,
The printing unit,
A mounting bracket provided on both sides of the jig transfer unit, a printing screw horizontally installed on the upper surface of the mounting unit, a printing slider screwed to and reciprocally coupled to the printing screw, and a support rod placed on the upper surface of the printing slider, A support plate coupled to the support rod, a pair of lifting rails arranged on the support plate, a lifting slider having both sides seated on the lifting rail, an lifting cylinder for elevating the lifting slider, and a print rotation coupled to the lifting cylinder Automatic multi- and multi-color pad printing system for molded products, characterized by consisting of a cylinder and a printing means coupled to the printing rotating cylinder and rotationally driven and including a printing pad. According to claim 1,
The printing unit,
A mounting bracket provided on both sides of the jig transport unit, a printing rail in which a pair is horizontally arranged side by side on the mounting rail, a supporting frame that is seated and sliding on the printing rail, and a printing screw provided horizontally on the lower side of the supporting frame, , A printing slider coupled to the lower portion of the support frame and screwed to the printing screw to move reciprocally, an elevating screw installed vertically in the center of the front of the support frame, and an elevating slider screwed to the elevating screw to ascend and descend. , A double-sided rotating cylinder provided on both sides of the elevating slider and a double-printing means rotatably provided on the two-sided rotating cylinder and including both printing means for simultaneously pressing and printing two printed objects. And multi-color pad printing automatic system. According to claim 1,
The print pattern providing unit,
One or more metal plates that are horizontally provided on the lower side of the printing part and the patterns or characters are etched, linear guides provided side by side on the one side of the metal plate, an arm coupled to a block of the linear guide, and coupled to an end of the arm Automatic printing system for multi-faced and multi-colored pad printing of molded products, characterized by comprising an ink pack filled with ink inside. According to claim 1,
The discharge unit,
A pair of horizontal rails spaced vertically and horizontally installed, a horizontal slider seated on the horizontal rail and horizontally moved, a vertical rail vertically coupled to the horizontal slider, and vertically mounted on the vertical rail A multi-sided and multi-color pad printing automatic system for a molded product comprising a vertical slider and a discharge means for vacuum-suctioning and discharging the printed object, which is coupled to the vertical slider, and has been printed. According to claim 1,
A multi-sided and multi-color pad printing automatic system for a molded product, characterized in that the discharge part further includes an inspection unit for inspecting a printing state on a printed object on which printing is completed. According to claim 1,
A multi-sided and multi-color pad printing automatic system for a molded product, characterized in that the other side of the discharge part further includes a drying part for drying the discharged object.

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