JP2756755B2 - Cover container for ink press of toning and measuring device for printing ink - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ink used in a printing ink toning / measuring device for mixing a large number of base inks mainly consisting of different colors to obtain a printing ink which produces a desired printed color. The present invention relates to a pressing cover container.

[0002]

2. Description of the Related Art Conventionally, when obtaining a printing ink for a desired color of a printed matter, a base ink of red, blue, yellow, transparent medium, black, etc. is compounded by repeating trial and error based on the experience and intuition of a skilled person. Was.

However, such a method has a problem that the waste of the base ink is increased and the working time is required. Moreover, the shortage of human resources in recent years has made it increasingly difficult to secure skilled personnel.

The applicant has already filed an apparatus for solving the above-mentioned problem, but in this apparatus, the individual ink tanks are large and heavy, so that they are arranged below. Therefore, in order to obtain a desired amount of ink from the base ink in the ink tank, the ink must be sucked by a pump or the like. For this reason, a device such as a pump is inevitably increased in size for sucking up the highly viscous base ink, which increases the cost and requires a large installation space.

[0005]

[Problems to be solved by the invention]

The present invention has been made in view of such a problem, and it is possible to surely send out a desired amount of ink from an ink tank with a small amount of force without applying a large load to a pump or the like. It is another object of the present invention to provide an ink pressing cover container of a printing ink toning / measuring device capable of easily confirming the color of an ink tank provided from the outside.

[0007]

According to the present invention, there is provided an ink pressing cover container for a printing ink toning / measuring device, comprising a plurality of discharge tubes.
Has a container for receiving the ink discharged from the
Desired depending on the amount of ink sent from the ink tank
Toning metering of printing ink to obtain ink of different colors
And how many colors are filled with ink from outside
When the easily distinguishable ink tank is connected upright and immovably to the discharge pipe connected to the pump that sends out the ink via the discharge port of the ink tank, the ink tank forms a sealed state with the discharge pipe, and the ink tank is inserted into the ink tank. the ink remaining amount movable in the outlet direction with the plunger of the fitted so as to seal the ink, also the ink tank, Lee
The ink tank is sealed in a sealed state with at least a part of a transparent cover container that can determine the color of the ink tank, and inside the ink tank by air sent out by a compressor into the cover container .
Make sure that only the plunger presses the ink
It is characterized by moving in the opposite direction .

[0008]

[Action]

The air sent out by the compressor flows into the cover container and presses the ink in the ink tank through a plunger inserted into the ink tank containing the ink. Since the ink is forcibly fed into the discharge pipe, the load applied when the pump sucks the ink is reduced, and the pump, its motor, and the like can be made compact. Further, since the ink tank is covered with the at least partially transparent cover container, the color of the ink tank and the internal state can be easily confirmed from the outside by the color displayed on each ink tank.

[0010]

FIG. 1 is an overall perspective view specifically showing an embodiment of an ink pressing cover container of a toning measuring device according to the present invention. Reference numeral 1 denotes a box in which a control device and the like to be described later are installed, and 2 denotes a control panel for operating the entire device. On the upper surface of the upper plate 3 of the box 1, a plurality of ink tanks 5 having base inks 4 such as red, blue, yellow, transparent medium, and black, and a transparent cover container 6 covering the outer periphery thereof are provided on a support base 7. It is supported upright and immovable.

Discharge pipes 9 extend from below the support table 7, and a gear box 8 having a gear 35 for sending the base ink 4 to the discharge port 10 of the discharge pipe 9 is provided at a predetermined position. ing. 11 is each discharge port 10
This is a container for receiving the base ink 4 discharged. On the upper surface of the upper plate 3, a compressor 12 for sending out air into the cover container 6 is installed, and is connected to each cover container 6 by a connection pipe 13.

As shown in FIG. 2A, the ink tank 5 has a discharge port 14 on the bottom surface. The discharge port 14 extends outward and forms a protruding tube 15. Also,
A plurality of protruding pieces 16 are provided on the outer periphery of the opening of the protruding tube 15 at predetermined intervals.

In the ink tank 5, a plunger 17 as a pressing member is fitted from above so that the plunger 17 can only be lowered in accordance with the remaining amount of the base ink 4.
The plunger 17 is made of a soft resin or rubber or the like. The annular convex portion 18 formed on the outer peripheral surface of the plunger 17 and the inner peripheral surface 19 of the ink tank 5 prevent the base ink 4 from leaking, and the annular convex portion The tip of 18 is plunger 17
Is formed so as to be pushed and bent in the opposite direction to the moving direction, and allows downward movement and makes it difficult for air to enter from the outside.

Next, the ink tank 5 is externally covered with a cover container 6, and a predetermined gap is formed between the outer peripheral surface of the ink tank 5 and the inner peripheral surface of the cover container 6.
Since the cover container 6 is transparent or partially transparent, the color of the ink tank 5 can be checked from outside even if the entire outer periphery of the ink tank 5 is covered. Further, on the outer peripheral surface of the opening 20 of the cover container 6, a plurality of protruding pieces 21 are formed at predetermined intervals, similarly to the ink tank 5.

As shown in FIGS. 2A and 2B, the support base 7 has a connection tube 22 for connecting the discharge port 14 of the ink tank 5 and the discharge pipe 9, and a connection tube 22. And a base 24 fixed to the lower surface thereof with bolts 26. The support 7 has legs extending from the lower surface of the base 24. 25 is fixed to the upper surface of the upper plate 3 of the box 1 described above.

A groove 2 is provided between the connection cylinder 22 and the support cylinder 23.
8 are formed. The groove 28 is a guide groove for the protruding tube 15 of the ink tank 5.
The ink tank 5 is mounted upright and immovably on the support base 7 by being fitted into the connection tube 22 via the connection pipe, and the inside of the ink tank 5 and the inside of the connection tube 22 are communicated.

The support tube 23 has a base 24 to be described later.
A communication passage 32 having a connection port 34 for the connection pipe 13 of the compressor 12 formed in the cover 12 and a communication passage 33 for communicating the inside of the cover container 6 are formed. For this reason, at least the protruding tube 15 is formed long enough that the bottom surface of the ink tank 5 does not block the opening 50 of the communication passage 33 when the protruding tube 15 is fitted in the groove 28.

In the groove portion 28, as shown in FIGS. 3 (a) and 3 (b), projecting pieces 29 for allowing the projecting pieces 16 of the ink tank 5 to rotate in a predetermined position direction correspond to the projecting pieces 16 in particular. It is formed. As a result, the ink tank 5 is
After being fitted into the support tube 23, the respective protruding pieces 16 of the protruding pipe 15 are rotated until the protruding pieces 16 are positioned below the protruding pieces 29 of the groove 28, so that the protruding pipes 15 are more securely mounted on the support pipe 23. Become.

The base 24 also has a groove 30 formed between the support cylinder 23 fixed by bolts 26, and the protruding piece 21 of the cover container 6 can be rotated only in a predetermined position direction in the same manner as described above. Thus, the projecting piece 31 is formed.
Therefore, the cover container 6 is fitted to the support tube 23 via the groove 30 so as to cover the ink tank 5, and the cover container 6 is rotated until the projection 21 is positioned below the projection 31. , Is more firmly attached to the base 24.

As shown in FIG. 3 (a), a discharge pipe 9 extends from below the connection cylinder 22, and a gear box 8 having two gears 35 is disposed in the middle of the discharge pipe 9. ing. The gear box 8 includes the two gears 35, 3
5, an upper plate 37 and a lower plate 3 which vertically support the shafts 36, 36.
8 are configured to sandwich the hollow plate 39 from above and below, and a communication chamber 42 is formed. The communication chamber 42 is further connected to the discharge pipe 41 on the downstream side.

The gears 35 and 35 mesh with each other to form the communication chamber 4.
The base ink 4 is fed only when the gears 35 and 35 are rotated so that the inside of the inside 2 is divided into an inflow chamber and a discharge chamber. Gear 35, 35
The shafts 36, 36 extend through the lower plate 38 and the upper plate 3 of the box 1, extend into the box 1, and are connected to the motor 43.

In the box 1 of the toning measuring device,
An input pattern storage means for storing an input wavelength pattern obtained by measuring the reflectance of each color of a printed matter or the like with an external spectrophotometer for each wavelength, and used for outputting the colors of the registered wavelength patterns already measured. A registered pattern storage means for storing a large number of base ink 4 mixing ratios, a mixing ratio for obtaining a mixing ratio of the base ink 4 for producing a color of the input wavelength pattern by comparing and calculating the input wavelength pattern and the registered wavelength pattern; Determining means for determining the discharge amount of each base ink 4 from the compounding ratio and measuring means for transmitting the number of rotations of the gears 35, 35; The determination means and the weighing means constitute a control unit including a computer. Also,
A keyboard, a CRT, and the like are housed in the control panel 2, and the printer is connected to the outside of the device.

Next, the operating state and operation of the toning and measuring apparatus according to the embodiment of the present invention will be described.

First, as shown in FIG. 1, red: blue: yellow:
The ink tanks 5 containing the base ink 4 such as black are opened, mounted on the support table 7, and further mounted thereon so as to cover the cover container 6. Next, the power of the apparatus is turned on, the compressor 12 is operated, and air is sent into each cover container 6 to constantly press the base ink 4 in the ink tank 5 via the plunger 17.

Next, the reflectance for each wavelength of the color of the printed material to be obtained is measured with a spectrophotometer. The DUT is
The present invention is not limited to printed matter, and may be a photograph, a real thing, or the like. An input wavelength pattern is obtained from the data and stored in the input pattern storage means. The input wavelength pattern is displayed on the control panel 2.

In the mixing ratio determining means, the input wavelength pattern and the registered wavelength pattern are compared. As a result, a pattern that matches or is closest to the input wavelength pattern is selected. If the registered wavelength pattern matches the input wavelength pattern, the blending ratio of the registered wavelength pattern becomes the blending ratio of the input wavelength pattern. If the registered wavelength pattern does not match the input wavelength pattern, the registered wavelength pattern and the compounding ratio are corrected by calculation, and the corrected registered wavelength pattern matches the input wavelength pattern. The compounding ratio after the correction at this time is the compounding ratio of the input wavelength pattern.

The compounding ratio is a ratio for each base ink 4, and is a numerical value such as red: yellow: black = 3: 4: 1. Further, the amount of the printing ink after mixing is input from a keyboard, and a predetermined amount of each base ink 4 is determined based on the amount and the mixing ratio, and is transmitted to the measuring means.

Next, after the measuring means calculates the number of rotations of each gear 35, a signal is sent out and the gear 35 is rotated. Then, the base ink 4 in the ink tank 5 passes through the discharge port 14, the connection cylinder 22, and the discharge pipe 9, and the communication chamber 4
It is sucked into 2. At this time, air of a predetermined pressure is sent out by the compressor 12 through the connection pipe 13, and this air passes through the communication path 32 of the base 24 and the communication path 33, and is sent out into the cover container 6. . Therefore, the air pressure is constantly maintained in the plunger 17 of the ink tank 5.
Is pressed from above.

Thus, the highly viscous base ink 4
Is smoothly fed out of the ink tank 5 to the discharge port 10 via the discharge pipe 9 by the suction by the gears 35 and the pressing of the plunger 17, and the force applied to the gears 35 and 35 is reduced. Therefore, the size of the pump can be reduced, that is, the gear box 8, the motor 43 and the like can be reduced in size. As described above, the base ink 4 sent out from each ink tank 5 is supplied to the container 11.
Since the ink is discharged into the inside, it is possible to obtain a printing ink which gives a desired color of the printed matter.

When preparing a predetermined color printing ink in this manner, not all base inks 4 are used in the same amount, and some base inks are consumed in large amounts and some are consumed in small amounts. It is necessary to supplement the ink by replacing the ink tank 5. In the present invention, since the color of the ink tank 5 can be easily determined from the outside, even an unskilled worker can quickly remove and mount the ink tank 5 without making a mistake.

Although the embodiments of the present invention have been described with reference to the drawings, the specific structure is not limited to these embodiments, and even if there are changes and additions without departing from the gist of the present invention. Included in the invention.

For example, the connecting pipe 13 extending from the compressor 12 may be directly connected to an arbitrary position of the cover container 6.

[0033]

According to the ink pressing cover container of the printing ink toning / measuring device of the present invention, the air sent out by the compressor flows into the cover container and is inserted into the ink tank having the ink. Since the ink in the ink tank is pressed through the plunger , the ink in the ink tank is forcibly sent out into the discharge pipe, and the load applied when the pump sucks the ink is reduced. The motor and the like can be made compact. Further, since the ink tank is covered by at least a partially transparent cover container, the color of the ink tank and the internal state thereof can be easily confirmed from the outside by the color displayed on each ink tank. Can be.

[0034]

[Brief description of the drawings]

FIG. 1 is an overall perspective view of an apparatus according to an embodiment of the present invention.

2A is a cross-sectional view of an ink tank, a cover container, and a support table, and FIG. 2B is a top view of the support table.

FIG. 3A is an enlarged sectional view of a main part of FIG. 1, and FIG.
FIG. 2 is a sectional view taken along line AA of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Box 2 Control panel 3 Upper plate 4 Base ink 5 Ink tank 6 Cover container 7 Support stand 8 Gear box 9 Discharge pipe 10 Discharge port 11 Container 12 Compressor 13 Connecting pipe 14 Discharge port 15 Projection pipe 16 Protrusion piece 17 Plunger 18 Ring Convex part 19 Inner peripheral surface 20 Opening part 21 Protrusion piece 22 Connecting cylinder 23 Support cylinder 24 Base 25 Leg part 26 Bolt 27 Through hole 28 Groove part 29 Protrusion piece 30 Groove part 31 Protrusion piece 32 Communication path 33 Communication path 34 Connection port 35 Gear 36 Shaft 37 Upper plate 38 Lower plate 39 Hollow plate 41 Discharge pipe 42 Communication chamber 43 Motor 50 Opening

 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-49-86107 (JP, A) JP-A-1-141744 (JP, A) JP-A-1-316271 (JP, A)

Claims (1)

(57) [Claims] 1. A method for receiving ink discharged from a plurality of discharge pipes.
Has a container for the ink to be discharged from each ink tank.
To obtain the desired color ink depending on the amount of ink
Is a toning and measuring device for printing ink, wherein an ink tank that can easily determine from the outside how many colors the ink is filled in is connected to a discharge pipe connected to a pump that sends out ink through the discharge port of the ink tank. When connected upright, it forms a sealed state with the discharge pipe, and a plunger that can move in the direction of the discharge port along with the remaining amount of ink fits in the ink tank so as to seal the ink. Is installed, and the ink tank determines the color of the ink tank.
At least a portion of the plunger inside the ink tank is sealed by a transparent cover container, and only the plunger in the ink tank is closed by the air sent out by the compressor into the cover container.
Ink pressing cover container toning metering device for a printing ink, characterized by moving the discharge tube direction so as to press the Nki.