KR20040013183A - A printing machine for thick plate - Google Patents

Abstract

PURPOSE: A printer for thick objects is provided to perform printing work with respect to various kinds of objects by allowing the printer to move up and down and back and forth. CONSTITUTION: A printer includes a rectangular lower panel(20), four screw type columns(30), a pair of guide devices(40) and a printing unit(50). The lower panel(20) supports a printing object having a heavy thickness. Four screw type columns(30) move up and down by passing through the lower panel(20). The pair of guide devices(40) is fixed to two of four screw type columns(30) and aligned parallel in opposition to each other. The printing unit(50) moves in forward and rearward directions along the guide devices(40). A pulley is provided in outer peripheral portions of four screw type columns(30) and a belt is wound around the pulley.

Description

{A printing machine for thick plate}

The present invention relates to a thick, heavy-duty printer, such as a wooden board or a metal plate, which can be printed on a printed matter having various sizes and shapes.

In general, a printer connected to a computer and used as an apparatus for outputting a document or image created by a computer is a printer, and an ink jet printer and a laser printer that adsorbs toner onto paper are widely used.

Here, when the inkjet printer receives a print command from a computer, the paper is supplied to the lower portion of the print head, and ink is ejected from the nozzles below the print head on the conveyed paper, thereby printing.

Such conventional printers are thick and heavy, such as plastic sheets or wooden boards, because they can print only papers, such as envelopes and envelopes, which are thin and well bent and have a certain size and shape. The to-be-printed object has a problem that it is difficult to print.

1 is a perspective view of a general inkjet printer.

As shown in FIG. 1, the inkjet printer has guide shafts 3 fixed in horizontal directions to both side walls of the main frame 2 formed in the case 1 forming the outer periphery of the ink jet printer. A driving motor 4 is installed at one side, and a driving gear (not shown) is coupled to the rotation shaft of the driving motor 4, and an idle pulley 5 is mounted at the other side of the driving gear.

The carriage 9 mounted with the head 8 is slidably coupled to the guide shaft 3 so as to reciprocate, and the carriage 9 is connected to the timing belt 6. The upper end of 9 is supported by a guide 7 formed at the upper end of the main frame 2.

In addition, a paper feeder 10 for feeding paper is formed outside the case 1 behind the mainframe 2, and paper is fed from the paper feeder 10 under the mainframe 2. The conveying part 11 which conveys and the discharge part 12 which discharges the printed paper are comprised.

However, such a conventional inkjet printer could not print a thick and non-bending to-be-printed object such as a wooden board or a metal plate, and was limited to the weight and shape of the to-be-printed paper only to a paper of a certain standard that could be accommodated by the feeder and the transfer part. Could print.

As described above, the conventional inkjet printer has a problem that can be printed only on a paper of a certain standard, which is a factor in having a configuration that the paper feeder and the transfer portion of the printer is limited by the weight or shape of the print. In order to solve this problem, it is necessary to improve the structure of the printer.

Accordingly, an object of the present invention is to provide an inkjet printer that is thick and heavy, such as a wooden board or a metal plate, and which can be printed on a to-be-printed object having various sizes and shapes.

1 is a perspective view of a typical inkjet printer

2 is a perspective view of the printer according to the present invention

3 is a plan view of the printer according to the present invention

Figure 4 is a front view of the printer according to the present invention

5 is a side view of the printer according to the present invention

6 is a plan view of the printhead cleaning apparatus applied to the present invention.

7 is a front view of the printing apparatus fixture applied to the present invention

※ Explanation of main parts of drawing

20: lower panel 21: pedestal

22, 56, 57, 67: sensor 23, 71: crossbar

30: pillar 31: pulley

32: screw shaft guide 33, 43: belt

34, 47, 74: motor 40: guide device

41: bracket 42, 53: guide shaft

44, 54: idler pulley 45: support

46: drive shaft 48: acrylic plate

49, 66: projection 50: printing apparatus

51: carriage carriage 52: head carriage

55: timing belt 58: cleaning device

59: holder 61, 64, 65: roller

62 frame 63 rail

68: fixed shaft 69: bearing

72: bar 73: gear

Thick toner printer for achieving the above object,

A rectangular lower panel for supporting a thick substrate, four screw columns vertically moving through the lower panel and installed at vertices, and two fixed to the two pillars in the longitudinal direction of the lower panel and facing each other in parallel And a printing device for printing while moving back and forth along the guide device.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the accompanying drawings, Figure 2 is a perspective view of the printer according to the present invention, Figure 3 is a plan view of the printer according to the present invention, Figure 4 is a front view of the printer according to the present invention, Figure 5 is a side view of the printer according to the present invention, Figure 6 Is a plan view of the printhead cleaning apparatus applied to the present invention, and FIG. 7 is a front view of the printing apparatus holder applied to the present invention.

As shown in FIG. 2, the printer according to the present invention includes a rectangular lower panel 20 for supporting a thick to-be-printed material, and four screw pillars vertically moved through the lower panel 20 and installed at vertices. 30 and two guide devices 40 which are fixed to the two pillars 30 in the longitudinal direction of the lower panel 20 and face each other in parallel with each other, and move back and forth along the guide device 40 and are printed. It consists of a printing device (50).

Although not shown, an upper part of the four pillars 30 toward the rear of the printer includes an apparatus for driving the printing apparatus 50 and a control unit connected to a computer.

Here, the lower panel 20 is in a bent form, the box-shaped case is formed lower and to the left and right of the rectangular plate for supporting the to-be-formed body.

In addition, a lower portion of the lower panel 20 is provided with a pedestal 21 to be pulled out in the front direction to be used when the printed matter is large or heavy, and under the pedestal 21, a bearing force of the lower panel 20 is provided. To raise the crosspiece 23 was installed.

The four pillars 30 pass through the lower panel 20 in a screw form, and a screw shaft guide 32 for supporting the lower panel 20 while guiding the shanghai movement of the pillar 30 is provided. The lower panel 20 is coupled below to form a leg of the printer.

The guide device 40 has a bracket 41 for fixing the guide device to the upper portion of the four pillars 30 inside the cover, respectively, and the two brackets 41 in the longitudinal direction of the lower panel 20. A guide shaft 42 is inserted and mounted to hang the printing device 50 and guides the reciprocating movement. The belt 43 is installed in parallel with the guide shaft 42 through the bracket 41. An idle pulley 44 for driving the belt 43 on both sides is installed, and a support 45 for fixing the idle pulley 44 is mounted on the outside of the two brackets 41.

In addition, correspondingly, the idler pulleys 44 which are installed as described above on the side facing the longitudinal direction of the lower panel 20 are connected to each other by a drive shaft 46, and the motor shaft includes a motor ( 47) is mounted.

In addition, the two guide devices 40 facing each other are used to be connected in a horizontal direction, and the lower portion of the drive shaft 46 so that the acrylic plate 48 is lowered about 2mm below the nozzle of the printing device 50. This prevents the nozzle from first contacting the substrate.

Here, the bracket 41 is formed with a fixing groove into which the guide shaft 42 is inserted and fixed, a hole through which the belt 43 penetrates is formed, and the support 45 is coupled with a screw.

Such a printing process by the printer of the present invention is as follows.

The to-be-printed object is placed on the lower panel 20, the four pillars 30 move up and down, and the height of the printing apparatus 50 is set according to the thickness of the to-be-printed object. Printing is performed while advancing on the print.

Here, since the printing apparatus 50 prints by injecting ink from the nozzle of the lower portion of the print head as in the printing process performed by a conventional inkjet printer, a detailed description thereof will be omitted.

In the printer of the present invention, the printing area is constant, but since the side surface is partially opened to minimize the size constraint of the printed object, the printer can be printed on the printed object such as a long rod.

In addition, the printer of the present invention is to perform the printing while the printing apparatus moves up and down with the column, thereby receiving less weight restrictions of the to-be-printed.

That is, unlike the conventional printer of the transfer method of the to-be-printed object, the printer of the present invention performs printing while moving only the printing apparatus while the to-be-printed object is supported by the lower panel and does not move, thus printing on a very heavy to-be-printed object. Do not overload the printer even if you do.

As shown in FIG. 3, the guide device 40 is fixed to two pillars 30, respectively, and is installed in the longitudinal direction of the lower panel 20 while facing in parallel with each other, and the lower panel 20. Pedestal 21 is installed in the front direction of the.

The guide device 40 has a bracket 41 for fixing the guide device to the upper portion of the four pillars 30 inside the cover, respectively, and the two brackets 41 in the longitudinal direction of the lower panel 20. A guide shaft 42 is inserted and mounted to hang the printing device 50 and guides the reciprocating movement. The belt 43 is installed in parallel with the guide shaft 42 through the bracket 41. An idle pulley 44 for driving the belt 43 on both sides is installed, and a support 45 for fixing the idle pulley 44 is mounted on the outside of the two brackets 41.

In addition, correspondingly, the idler pulleys 44 which are installed as described above on the side facing the longitudinal direction of the lower panel 20 are connected to each other by a drive shaft 46, and the motor shaft includes a motor ( 47) is mounted.

Here, the idle pulley 44 connected to the drive shaft 46 by the drive of the motor 47 is rotated, the idle pulley 44 rotates forward and backward moving the belt 43, the The printing device 50 moves back and forth along the belt 43 to print.

In addition, the printing device 50 includes a cleaning device 58 for moving the head carriage 52 by driving the timing belt 55 to eject ink from the nozzles below the head to print, and to clean the nozzles. The sensor 57 is attached to the lower portion of the carriage unit 51 to prevent the second substrate from coming into contact with the nozzle subsequent to the acrylic plate 48 under the drive shaft 46.

When configuring such a printer, it is possible to set the print area by determining the front and rear or left and right moving areas of the printing apparatus.

As shown in FIG. 4, the printing device 50 having both ends fixed to the guide shaft 41 of the guide device 40 facing each other, the head carriage 52 mounted to the front of the carriage unit 51. ), A guide shaft 53 for reciprocating the head carriage 52, a motor (not shown) mounted behind the carriage unit 51 to drive the movement of the head carriage 52; And two idle pulleys 54 interlocked with the rotation of the motor and installed at both ends of the carriage unit 51 and the idle pulleys 54 to allow the movement of the head carriage 52. Timing belt 55 and a cleaning device 58 for cleaning the nozzle of the head carriage 52.

Here, by installing a sensor (57) for detecting the to-be-printed portion in the lower portion of the printing device 50, to prevent the nozzle of the head carriage 52 from touching the surface of the to-be-printed object, the range The height of the printing apparatus 50 is set within the nozzle to prevent clogging.

That is, the printer according to the present invention prints on a wooden board or the like, and if the nozzle is in contact with a non-smooth surface, the nozzle may be damaged, and since there is a foreign matter on the wooden board surface, the clogging of the nozzle is further accelerated.

In addition, a lower portion of the four pillars 30 passes through the lower panel 20, and pulleys 31 are mounted on the outer circumferential surfaces of the four pillars 30 in the lower panel 20, respectively. A belt 33 is provided at 31 to connect the pillars 30, and the belt 33 is equipped with a motor 34 capable of forward and reverse rotation.

In addition, the bearing is coupled to the top and bottom of the pulley 31, and the thread is formed on the inner circumferential surface of the pulley 31 to act as a nut, so that the pillar 30 moves up and down when the pulley 31 rotates. do.

That is, when the nut rotates in place, the bolt is moved up and down along the thread of the nut, and the pillar 30 moves up and down as the pulley 31 rotates and is fixed to the pillar 30. Since the guide device 40 moves up and down together, the printing device 50 connected to the guide device 40 can be moved up and down in accordance with the movement of the pillar 30.

In addition, a screw shaft guide 32 is installed below the lower panel 20 to guide the vertical movement of the pillar 30, and a part of the screw shaft guide 32 is partially cut in the upper end of the sensor. 22 is provided to restrict the upper movement of the pillar 30.

That is, when the pillar 30 rises upward from the screw shaft guide 32, the sensor 22 senses that the pillar 30 is absent and stops the motor 34 driving the pillar. Do not allow 30 to deviate from the lower panel 20.

In addition, a crossbar 23 is installed in the lower center of the lower panel 20 to increase the holding force of the lower panel 20, and a motor 47 driving the guide device is provided on the left side of the guide device 40. Attached.

As shown in FIG. 5, the pillar 30 penetrates the lower panel 20 while fixing the guide device 40, and moves the screw shaft guide 32 below the lower panel 20. It can be moved up and down accordingly.

In addition, the guide device 40 is coupled to the upper portion of the column 30 and can move up and down with the column 30, the printing device 50 is attached to the guide device 40.

The printing is carried out along the guide shaft 42 by the driving of the belt 43 installed in the guide device 40, and the upper and lower positions can be set according to the movement of the guide device 40.

Such a printing apparatus 50 is limited in movement, and the sensor 56 for controlling the front and rear movement is installed inside the cover of the guide apparatus 40, and the protrusion 49 is disposed below the belt 43. When the protrusion 49 touches the sensor 56, the movement of the printing apparatus 50 is stopped.

By providing the sensor as described above, one printing is completed every time the printing apparatus is moved, so that the number of printings can be checked, and thus, the replacement timing of the belt can be checked, and the replacement timing of the ink cartridge can be known.

Therefore, it is possible to know the life of the printer as a whole, to control the life and replacement time of each part, when used for sale, the number of times is displayed on the instrument panel, the fair trade is made and gives the user confidence.

In addition, the carriage 57 is provided with a sensor 57 so that the nozzle does not touch the to-be-printed object and at the same time restricts the movement downward.

In addition, the restriction of the upper movement is necessary to prevent the pillar 30 and the printing device 50 from being separated from the lower panel 20, the screw shaft guide 32 installed below the lower panel 20 The sensor 22 is attached to the upper end of the control unit, and the pillar 30 is moved up from the sensor 22 so as to leave the sensing area, and the movement of the pillar 30 is stopped.

As shown in FIG. 6, when the print head cleaning device 58 is separately removed from the printing device 50, the cleaning device 58 located below the carriage unit 51 is not shown. A circular roller 61 is provided at the edge, and is slidably assembled on the upper part of the frame 62, and a rail 63 is connected to the body and drawn out from the frame 62.

The rail 63 may be used as a gear, and is led by a plurality of circular rollers 64 and 65 provided at both sides so that the cleaning device 58 may be smoothly drawn out from the frame 62.

Although not shown in the one roller 65, a motor is connected to guide the in and out of the cleaning device 58, and each of the rails 63 is provided with a projection 66 at a predetermined distance, and the fixing table 59 is provided. Also, the sensors 67 are attached to positions corresponding to the projections 66, respectively.

In this case, when the projections 66 are located at positions corresponding to the respective sensors 67, the printing apparatus 58 is mounted on the inside of the frame 62. Location.

On the contrary, when the projections 66 are deviated to the left from the respective sensors 67, the cleaning device 58 is coupled to the nozzles of the lower print head after the printing is finished to perform the cleaning.

As shown in Figure 7, looking at the structure of the holder 59 is attached to the carriage device stand 51, the fixed shaft 68 is coupled to the front left and right sides of the holder 59, respectively, the carriage device Bearings 69 moving up and down along each of the fixed shafts 68 are coupled to each other with both ends of the base 51 mounted therebetween, and a rail stand 71 is placed between the bearings 69. Bars 72 connected to the crossbars 71 are coupled to the respective bearings 69, and the right one of the bars 72 is connected to the gears 73 and moved up and down by the motor 74.

Here, each bar 72 has a vertex rotatably fixed to the holder 59, the leg portion is rotated relative to the vertex to move the crossbar 71 and the bearing 69 up and down together Let's do it.

That is, when the gear 73 is rotated by the motor 74 while the bar 72 is rotated, the crossbar 71 moves upward and the bearings 69 move upward together. .

Accordingly, the carriage device 51 having both ends mounted on the bearing 69 can be moved up and down.

In this way, the bearing 69 is moved up and down by the sensor 75 within a predetermined interval, thereby limiting the up and down movement of the carriage unit 51.

As shown in FIG. 6 and FIG. 7, when the cleaning device 58 performs cleaning, the cleaning device 58 moves the cleaning device 58 to the left side while raising the head carriage 52 to the upper limit position. The nozzle is placed at the same position as the nozzle below the head carriage 52, and the head carriage 52 is lowered to the lower limit position so that the nozzle contacts the cleaning device 58 to perform cleaning.

Then, when the cleaning process is completed, the head carriage 52 moves to the upper side, and at the same time, the cleaning device 58 moves to the right to enter the frame 62, and then the head carriage 52 moves to the left. To return to the print area.

As described above, unlike a conventional inkjet printer, a thick to-be-printed printer prints by moving the printing apparatus without transferring the to-be-printed material, so that the weight of the to-be-printed object is lessened, and the height of the top and bottom of the printing device is controlled. As a result, the height limit of the substrate is lessened.

In addition, since the printing apparatus is moved, it is less affected by the shape of the object to be printed, and since the side is partially opened by forming a column, printing on a printed object such as a long rod is possible.

As described above, by constructing an inkjet printer capable of vertical movement and printing while moving forward and backward, it is also possible to print on a to-be-printed object having a thick, heavy and various shape such as a wood board or a metal board.

That is, the printing apparatus moves while printing without transferring the to-be-printed material, and the height of the top and bottom of the printing device can be adjusted, and since the printing device is moved, it is less affected by the thickness or shape of the to-be-printed object. Less weight restrictions

Claims (10)

In the thick-printed printer, A rectangular lower panel 20 for supporting a thick substrate; Four screw pillars 30 moving vertically through the lower panel 20 and forming a rectangular vertex; Two guide devices 40 fixed to the two pillars 30 in the longitudinal direction of the lower panel 20 and facing each other in parallel; Thick to-be-printed printer including a printing device 50 to move back and forth along the guide device 40 to print The method of claim 1, Pulleys 31 are mounted on the outer circumferential surfaces of the four pillars 30 in the lower panel 20, and belts 33 are installed on the pulleys 31 to connect the pillars 30. The belt 33 is equipped with a motor (34) capable of forward and reverse rotation, by rotating the pulley 31 to move the four pillars 30 up and down, characterized in that the printer The method of claim 1, The guide device 40 is mounted between the two brackets 41 and the brackets 41 which are attached to the inside of the cover, respectively, the upper inside of the four pillars 30, and the longitudinal direction of the lower panel 20. A guide shaft 42, a belt 43 installed through the bracket 41 in parallel with the guide shaft 42, an idle pulley 44 for driving the belt 43 on both sides, and A drive shaft 46 for connecting the support 45 mounted to fix the idle pulley 44 to the outside of the bracket 41, and an idle pulley 44 corresponding to each other, and the drive shaft ( Thick to-be-printed printer, characterized in that it consists of a motor 47 mounted to 46). The method of claim 1, The printing device 50 includes a carriage unit 51 mounted to the front of the fixing unit 59, a head carriage 52 mounted to the front of the carriage unit 51, and the head carriage 52. A guide shaft 53 for guiding the reciprocating movement of the vehicle, a motor (not shown) mounted behind the carriage unit 51 to drive the movement of the head carriage 52, interlocked with the rotation of the motor, and Two idle pulleys 54 provided at both ends of the carriage device stand 51, a timing belt 55 connected between the idle pulleys 54 to enable movement of the head carriage 52, and Thick to-be-printed printer comprising a cleaning device 58 for cleaning the nozzle of the head carriage 52 The method of claim 1, A sensor 56 is installed inside the cover of the guide device 40 to control the front and rear movement, and a protrusion 49 is formed below the belt 43 so that the protrusion 49 is connected to the sensor 56. Thick to-be-printed printer, characterized in that to stop the movement of the printing device 50 at the moment of contact. The method of claim 1, A screw shaft guide 32 for supporting the lower panel 20 while guiding the shanghai movement of the pillar 30 is coupled to the lower panel 20 and attached to an upper end of the screw shaft guide 32. Thick toner printer, characterized in that to install a sensor 22 for limiting the upper movement of the pillar 30 in some cut-out portion The method of claim 1, Thick to-be-printed printer, characterized in that the sensor to detect the to-be-printed object in the printing device 50 and to limit the movement of the lower portion of the printing device 50 The method of claim 3, Thick to-be-printed printer, characterized in that the acrylic plate 48 is installed below the drive shaft 46 to be lowered by a predetermined length below the nozzle of the printing device 50. The method of claim 4, wherein The cleaning device 58 is provided with a circular roller 61 at the lower edge, is slidably assembled on the upper portion of the frame 62, the rail 63 is connected to the body and drawn out from the frame 62, A plurality of circular rollers 64 and 65 are provided at both sides of the rail 63, and one roller 65 is connected to a motor to induce the in and out of the cleaning device 58, and the rail 63 Are attached to the projections 66 at a predetermined distance, and the fixing unit 59 is attached to the sensor 67 in a position corresponding to each of the projections 66, respectively. The method of claim 4, wherein Fixing shafts 68 are respectively coupled to the front left and right sides of the fixing stand 59, and the fixing shaft 68 is mounted up and down along the fixing shafts 68 with both ends of the carriage unit 51 mounted. The bearings 69 moving to each other are coupled to each other, and a crossbar 71 is disposed between the respective bearings 69, and bars 72 connected to both ends of the crossbars 71 are coupled to the respective bearings 69, respectively. And one of the bars 72 is connected to the gear 73 and is moved up and down by the motor 74.