KR100553836B1 - Device For Maintainning Horizontal The Media Of A Digital Printing Machine - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a media horizontal holding apparatus of a digital printing machine, and more particularly, to printing on media supplied from a paper feed roller and winding the paper feed roller, in the hollow portion inside the media support for maintaining the media horizontal. Rotating shafts are connected to both sides, and pinion gears are installed on both sides of the rotating shafts so that when the media horizontal retaining means moves up and down by the rack gear fixed to the guide member, the media is always wound horizontally in any state. The invention relates to a very useful and effective invention which makes it possible to stably be wound on a roll roller.

Media leveling means Media support rack gear Pinion gear shaft

Description

Device for Maintainning Horizontal The Media Of A Digital Printing Machine}             

1 is a perspective view of main parts of a conventional digital printing machine,

2 is a view showing the configuration of a media horizontal holding device of the conventional digital printing machine,

3 is a view showing an operating state of a conventional media horizontal holding apparatus,

4 is a perspective view of a digital printing machine having a median horizontal holding apparatus according to the present invention,

5 is an exploded perspective view showing the configuration of the median horizontal holding apparatus of the digital printing machine according to the present invention,

6 is an assembly state diagram of the media horizontal holding device of the digital printing machine according to the present invention,

Figure 7 is a view showing a state from above the median horizontal maintenance apparatus according to the present invention,

8 is a view illustrating a state in which the median horizontal holding device according to the present invention is operated.

Explanation of symbols on the main parts of the drawings

1: Leg 11: Feeding Roller

12: wind roller 40: guide member

42: insertion groove 44: bent portion

46: bearing guide member 48: fixed surface portion

50: fitting hole 52: fastening member

54: screw hole 56: rack gear

58: second fastening member 60: separation prevention member

62: third fastening member 64: median horizontal maintenance means

68: shaft fixing 70: locking groove

72: first shaft bearing 74: hollow part

76: fitting portion 78: the second shaft bearing

80: rotating shaft 82: guide bearing

84: pinion gear 86: shaft fit

88: Axial fixing screw A: Media

The present invention relates to a digital printing machine, and in particular, in a configuration for printing on the media supplied from the paper feed roller and winding the paper feed roller, a rotating shaft connected to both sides of the hollow portion inside the media support for maintaining the media horizontally. And a pinion gear on both sides of the rotary shaft, so that when the media horizontal retaining rod is moved up and down by the rack gear fixed to the guide member, the media printing is always kept horizontal even when the media is wound in any state. It relates to a median leveling device.

In general, a digital printing machine is frequently (magenta, M), yellow (yellow, Y), cyan (cyan, C) on a head for ejecting ink by digitizing a desired output signal from a digital controller. It is a modern printing device that draws a pattern that a user wants by using a subtractive mixing technique that supplies three primary colors, and colors the printing paper (called media) to create various colors.

In order to use the above-described subtractive mixing technique, ink having each color is individually received and supplied to a head for scanning each color, so that ink of the color scanned from each head is overlaid so that a new color is exhibited.

1 is a perspective view of main parts of a conventional digital printing machine, Figure 2 is a view showing the configuration of the media horizontal holding device of the conventional digital printing machine, Figure 3 is a view showing the operating state of the conventional media printing device.

In the state of use of a conventional digital printing machine, a rail-shaped feeder 5 is installed on the upper part of the base 3 supported by both legs 1 contacting the bottom surface, and the feeder 5 The cartridge 9 having the head portion 7 fixed to one side is coupled to be transportable.

In addition, a media (A; Media), which is printing paper, is supplied from the paper feed roller 11 installed on the rear surface of the digital printing machine to the upper surface of the base 3, and the cartridge 9 is left and right on the upper surface of the media. When the reciprocating transfer is carried out, the ink of the predetermined color is scanned from the head part 7 in conjunction with this, and a printing operation is performed, and the media A printed on the wind roller 12 on the opposite side of the paper feed roller 11 is printed. Will be wound.

The media (A) is a term known in the art, and refers to an object for printing ink ejected by the head portion 7 onto paper or cloth.

An operating panel 16 covered by the cover 15 is formed on one side of the base 3 so that the user can input a desired signal to print the media A in a desired state.

One side of the leg 1 has four main ink containers 13 for supplying purple (magenta, M), yellow (yellow, Y), cyan (cyan, C), and black (K), respectively. It is installed in the state stored in 14).

An auxiliary ink container 17 is provided on the opposite side of the head portion 7 of the cartridge 9 to supply ink to the head portion 7, and the main ink container 13 is supplied to the auxiliary ink container 17. Ink is supplied from.

On the other hand, as shown in Figure 2, when the media (A) is supplied from the paper feed roller 11 and is wound on the wind roller 12 after being printed, the media (A) is kept horizontal, In order to have a constant tension, the median horizontal retaining rod 30 is installed at a position where the height is low inward of the winding roller 12.

The median horizontal holding rod 30 is fixed in the guide groove 22 of the guide member 20 which is fixed to the inner surface of the leg 1, the fixed surface portion 24 is fastened by a plurality of fastening members 26. The guide roller 32 is inserted and installed in the jaw portion 28 in a state where the separation is prevented, and the media 1 is kept horizontal while moving up and down by a change in tension due to the feeding speed of the media A. do.

The median horizontal holding rod 30, because the two guide rollers 32 operate in a separate configuration, the height of both end portions can operate differently.

However, as shown in FIG. 3, when the media A to be printed is narrow and the media A is printed by being biased to the right, the media horizontal holding rods 30 supporting the media A are printed. In the case where the lengths of the parts protruding to both sides are different, for example, when the left part is long and the right part is short, the tension applied to the media A becomes large in the left part, and a lot of load is applied in the left part.

Therefore, the median horizontal holding rod 30 which maintains the median (A) level is inclined to the left side, so that the media (A) supporting is inclined without maintaining the median (A) so that printing is correctly performed on the media (A). Not only does not have a problem that the media (A) is not wound accurately on the sensory roller (12).

The present invention has been made in view of this point, in the configuration for printing on the media supplied from the feed roller and winding the feed roller, the rotating shaft connected to both sides in the hollow portion inside the media support for maintaining the media horizontally It is provided with pinion gears on both sides of the rotary shaft, so that when the media horizontal holding means moves up and down by the rack gear fixed to the guide member, the media is always kept horizontal even when the media is wound in any state. .

This object includes a paper feed roller for supplying media; A head unit installed on the base and horizontally moving so as to print ink by printing ink onto the media supplied from the paper feed roller; A roll roller for winding the media printed by the head unit; In the digital printing machine consisting of legs installed on the bottom of the base to support the load, the fixed surface portion symmetrically contact each inner surface of the leg is fastened and fixed by a plurality of fourth fastening members, open up, down A guide member forming upper and lower guide grooves; A rack gear fastened and fixed to a screw hole to a plurality of first fastening members fitted into fitting holes on an inner surface of the guide member, the gear teeth being formed on one side thereof; By providing a media horizontal holding device of a digital printing machine comprising a media horizontal holding means that is coupled to the rack gear is coupled to the media gears so that the horizontal force applied to the media is not constant but always horizontally up and down. Is achieved.

In addition, it is preferable to form an insertion groove portion into which the pinion gear and the horizontal maintenance end are fitted on one upper surface of the guide member.

The media horizontal holding means includes: a media support for pulling the media to its own weight and forming a hollow portion therein; A shaft inserted in the hollow part of the media support, the rotation shaft being configured to rotate two pinion gears installed at both ends of the media support simultaneously with respect to the media support; The fitting portion is inserted into both end portions of the media support, and includes a shaft fixing body for rotating the shaft to stably rotate without friction by the first and second shaft bearings.

In addition, the upper and lower guide grooves of the guide member are formed with bent parts to fasten and fix the bearing guide member to the third fastening member, and contact the bearing guide member to guide the movement of the median horizontal holding means. It is comprised by installing a plurality of guide bearings.

In order to prevent lateral movement of the guide bearing installed on the rotating shaft, it is preferable to install a separation preventing member fixed by a plurality of second fastening members on the inner surface of the guide member.

Hereinafter, the configuration of a preferred embodiment of the present invention with reference to the accompanying drawings.

The configuration of the present invention, the feed roller 11 to supply the media (A); A head portion (7) installed in the base (3) and horizontally moving so as to eject ink by printing ink onto the media (A) supplied from the paper feed roller (11); A roll roller 12 for winding the media A printed from the head portion 7; In a digital printing machine composed of legs (1) mounted on the bottom of the base (3) to support a load, the fixed surface portions (48) are symmetrically contacted to respective inner surfaces of the legs (1), so that a plurality of agents A guide member 40 fastened and fixed by the four fastening members 65 to form upper and lower guide grooves 61 opened up and down; A rack gear 56 which is fastened and fixed to a screw hole 54 by a plurality of first fastening members 52 fitted into the fitting holes 50 on the inner surface of the guide member 40 and has gear teeth formed on one side thereof; The median horizontal holding means 64 is coupled to the rack gear 84 so that the pinion gear 84 is coupled so that the median A always moves horizontally while the horizontal force applied to the media A is not constant. It consists of.

In addition, an upper surface of the guide member 40 forms an insertion groove 42 into which the pinion gear 84 and the horizontal holding means 64 are fitted.

And, the median horizontal holding means 64, the media support (66) for pulling the media (A) to its own weight, and forming a hollow portion 74 therein; A shaft inserted in the hollow portion 74 of the media support 66 and having two pinion gears 84 installed at both ends thereof to rotate simultaneously with respect to the media support 66; Insertion portions 76 are inserted into both side ends of the media support 66 so that the rotation shaft 80 rotates stably without friction by the first and second shaft bearings 72 and 78. It is configured to include).

The first shaft bearing 72 is press-fitted into the locking groove 70 of the shaft fixing body 68 to be fixed, and the second shaft bearing 72 is larger than the first shaft bearing 72. You can use a small one.

In addition, the upper and lower guide grooves 61 of the guide member 40 are formed with bent portions 44 to fasten and fix the bearing guide member 46 to the third fastening member 62, and the bearing guide member. A plurality of guide bearings 82 are provided on the rotary shaft 80 so as to contact the 46 and guide the movement of the median horizontal holding means 64.

Then, the separation preventing member 60 is fixed to the inner surface of the guide member 40 by a plurality of second fastening members 58 in order to prevent the side movement of the guide bearing 82 installed on the rotary shaft (80). Install and configure it.

The first, second, third, and fourth fastening members 52, 58, 62, 65 are preferably screws, bolts, or the like.

The rotation shaft 80 is inserted into the shaft fitting protrusion 86 of the pinion gear 84 and fixed by the shaft fixing screw 88.

Hereinafter, the operation and effects of the present invention will be described based on the accompanying drawings.

Looking at the assembly state of the median horizontal holding device according to the present invention, the second guide member 40 to the inner surface of the leg 1 in contact with the fixed surface portion 48 to use a plurality of fourth fastening members 65. To fix it.

In addition, the rack gear 56 is in contact with the inner surface of the guide member 40 to fasten and fasten the first fastening member 52 fitted with the fitting hole 50 to the screw hole 54.

In addition, the front and lower guide grooves 61 which are cut up and down are formed in the front portion of the guide member 40, and are formed by connecting the insertion grooves 42 to the side.

Then, the bent portion 44 is formed in the upper and lower guide grooves 61 to install the bearing guide member 46 which is fastened by the second fastening member 62.

In addition, on the opposite side of the bearing guide member 46, to prevent the guide bearing 82 from moving to the outside to install a separation preventing member 60 which is fixed by the second fastening member (58).

Both sides of the median support 66, which is the median horizontal holding means 64, are press-fitted to fix the fitting portion 76 of the shaft fixing body 60, and the locking groove 70 of the shaft fixing body 60 is fixed. The first shaft bearing 72 is press-fitted and fixed, and the second shaft bearing 78 is press-fitted and fixed inside the end portion.

The pinion gear 84 is fixed to both end portions of the rotation shaft 80 by using a shaft fixing screw 88 on the axial closeness 86.

In addition, a guide bearing 82 is installed between the pinion gear 84 and the shaft fixing body 68.

On the other hand, the pinion gear 84 and the guide bearing 82 of the median horizontal holding means 64 are side-inserted into the insertion groove 42 of the guide member 40 to fit the upper and lower guide grooves 61. You lose.

In the state configured as described above, the media A supplied to the paper feed roller 11 is printed while passing through the head portion 7 provided on the base 3, and the media support is media level holding means 64. In the state in which level is maintained at 66, the winding roller 12 is wound.

On the other hand, when the media A is small and is deflected to the right or left side of the media horizontal holding means 64, the media support 66 is eccentrically loaded as shown in FIG. 3. .

Therefore, even though the load applied to the media support 66 to the left and right is changed so that the force to escape the horizontal of the media support 66 is applied, the two pinion gears 84 are rack gears ( 56, the media support 66 is always horizontal because it moves up and down while simultaneously rotating by the rotary shaft 80 in the engaged state.

That is, even if an eccentric load is applied to the media support 66 by the media A, an excessive force acts on either the left or the right pinion gear 84, but the other end installed on the opposite side by the rotation shaft 80. The pinion gear 84 also rotates up and down while simultaneously rotating the rack gear 56 so that the median horizontal holding means 64 is always horizontal.

When the media A moves rapidly, the media horizontal holding means 64 is moved upward from the upper and lower guide grooves 61 of the guide member 40 by the tension of the media A.

In addition, when the movement of the media A slows and the tension is relaxed, the media horizontal holding means 64 moves downward from the upper and lower guide grooves 61 of the guide member 40. Since the tension is kept constant, the media (A) serves to be rolled around the roll roller 12 stably.

And, if the media support 66 is moved up and down by the change in the feed speed of the media (A), the pinion gear 84 rotates along the rack gear 56, the rotating shaft 80 is the media support (66) It is rotated without friction by the first and second shaft bearings 72 and 78 installed in the shaft fixing body 68 fixed to both ends of the.

In addition, the guide bearing 82 coupled to the rotary shaft 80 also moves along the bearing guide member 46 to guide the up and down movement of the median horizontal holding means 64.

On the side of the guide bearing 82, the separation preventing member 60 coupled to the guide member 40 by the second fastening member 58 prevents the median horizontal holding means 64 from being separated from the side. do.

As described above, according to the media horizontal holding apparatus of the digital printing machine according to the present invention, the media horizontal holding means for maintaining the media horizontally in a configuration for printing on the media supplied from the paper feed roller and winding the paper feed roller. When the median horizontal holding means moves up and down by the rack gear fixed to the guide member by installing the pinion gear on both sides of the rotary shaft, the pinion gear is installed on both sides of the hollow part of the media. Even though it is always very horizontal, it is a very useful and effective invention to stably be wound on the roll roller.

Claims (5)

A feed roller for supplying media; A head unit installed in the base and horizontally moving so as to print ink by printing ink onto the media supplied from the paper feed roller; A roll roller for winding the media printed by the head unit; In the digital printing machine consisting of legs installed on the bottom of the base to support the load, A guide member symmetrically contacting respective inner surfaces of the legs to be fastened and fixed by a plurality of fourth fastening members, and to form upper and lower guide grooves opened up and down; A rack gear fastened to a plurality of first fastening members fitted into fitting holes on the inner surface of the guide member and having gear teeth formed on one side thereof; The median horizontal maintenance of the digital printing machine is configured as a median horizontal holding means that is coupled to the rack gear is coupled to the media to move up and down, even if the horizontal force applied to the media is not constant. Device. The media horizontal maintenance apparatus of claim 1, wherein an insertion groove portion into which the pinion gear and the horizontal holding means are inserted is formed on one upper surface of the guide member. According to claim 1, wherein the median horizontal maintenance means, the media support for pulling the media to its own weight and forming a hollow portion therein; A shaft inserted in the hollow part of the media support, the rotation shaft being configured to rotate two pinion gears installed at both ends of the media support simultaneously with respect to the media support; The media horizontal maintenance device of the digital printing machine, characterized in that the insertion portion is installed at both ends of the media support, the shaft comprises a shaft fixing body to rotate stably without friction by the first and second shaft bearings. The method of claim 3, wherein the upper and lower guide grooves of the guide member are formed with a bent portion to fasten and fix the bearing guide member to the third fastening member, and contact with the bearing guide member to guide the movement of the median horizontal holding means. And a plurality of guide bearings on the rotating shaft to install the media horizontal holding apparatus of the digital printing machine. [5] The digital printing machine as claimed in claim 4, wherein a separation preventing member fixed to the inner side of the guide member by a plurality of second fastening members is installed to prevent lateral movement of the guide bearing installed on the rotating shaft. Mediah leveling device.

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