JP3126525U - Special color ink supply device - Google Patents

Abstract

A special color ink supply device having a simple structure is provided.
A spot color ink supply device according to the present application is a spot color ink supply device in an offset printing press, having an opening at a lower end, and containing the spot color ink therein; A cock 8 that is detachably attached and adjusts the outflow amount of the special color ink, and an ink supply nozzle 11 having one end detachably attached to the cock and the other end communicating with the ink fountain of the offset printing machine. And a Teflon (registered trademark) or silicon resin 2 is coated inside a flow path in which the special color ink flows out from the ink storing means through the cock and from the ink supply nozzle.
[Selection] Figure 1

Description

  The present application relates to an ink supply device that is supplied to an ink fountain of a printing unit in an offset printing press.

  As shown in FIG. 1, standard colors (yellow, red, indigo, and black) generally called process colors in offset printing are obtained from an ink container 52 that stores ink of the standard colors and a pipe 53 that transports the ink. The ink is supplied to the ink fountain 57 of each printing unit 56 by an automatic ink supply system 55 including a piping 54 and a pump 54 for supplying ink to each printing unit 56 through the pipe 53.

  However, special colors specified by customers other than the standard colors mentioned above, such as fluorescent pink, gold red, gray, light green, purple, gold, and silver, cannot be covered (hereinafter referred to as special colors). However, there are the following problems, and the existing standard color automatic supply system cannot be used.

(Problem 1)
As shown in FIG. 1, the conventional standard color automatic supply system cannot be used because it is impossible to completely clean the inside of the pump and piping of a complicated mechanism and the colors are mixed.

(Problem 2)
On the other hand, as shown in FIG. 2, an automatic ink supply apparatus 60 that performs automatic supply using ink stored in a simple 20 kg pail can is commercially available. The automatic ink supply device 60 includes an ink feeding means 62 that pushes out the ink 61a of the pail can 61 in which the ink 61a is stored to the outside by air pressure, a supply hose 63 that feeds the pushed ink to the ink fountain 64, and the like. However, the problem is that the inside of the pump, the supply start / stop valve, the supply hose 63, etc. included in the ink pressure feeding means 62 is complicated, and it is difficult to wash when changing the ink color. In addition to the use of special colors or standard colors that are used, there is a problem that a large amount of lost ink is generated when the residual ink in the piping such as the pump and the supply hose 63 is pushed out and removed.

(Problem 3)
Therefore, at present, as shown in FIG. 3, the special color ink 67 is manually replenished to the ink fountain 69 by the spatula 68 from the ink can 66 in which 5 kg of the special color ink 67 is stored. Not only is it a heavy load, but neglecting to refill the ink fountain 69 can cause a drastic drop in ink density or decolorization (hereinafter referred to as ink rise), and there is a high risk of receiving severe complaints from customers as a serious defect. there were.

(Problem 4)
In addition, since ink fountains are usually located above and below a narrow printing unit in the case of offset rotary presses, when manually supplying special color ink, the ink dripping drastically soils the machine and requires a long time for cleaning. Was.

(Problem 5)
On the other hand, the standard color inks of yellow, red, indigo, and black that were used in the past are taken out from the ink fountain, and the ink fountain is thoroughly washed to prevent color mixing with the special color. Standard color inks are disposed of in 5k tin cans and disposed of as industrial waste. As with ink cans 66, not only was it wasted resources and energy, but there were costs for industrial waste disposal and can purchase. .

  Accordingly, the present invention has been made with the solution of the above problems as an example of an object, and provides a special color ink supply device having a simple structure.

  (Merit 1) Successful automation of special color ink by conventional manual work. The conventional replenishment work of special color ink by complicated manual work was eliminated.

  (Merit 2) The ink stain around the ink fountain by the manual work shown in FIG.

  (Merit 3) The opening and closing of the crimping cock by the crimping terminal 16 and the crimping terminal receiver 17 receives a signal from the ink level sensor 25 of the existing or commercially available automatic ink supply device via the new relay box 30 and a new air solenoid valve 31 By turning on and off, automatic supply from this special color ink hopper 1 was made possible, and succeeded in preventing ink rising due to forgotten ink replenishment.

  (Merit 4) The ink can 66 (see FIG. 3), which has been used as a container in the past, has been collected as paid industrial waste after being used and burned in an incinerator and then recycled as iron resources. Since the ink hopper 1 according to the present invention is permanently used in place of the conventional disposable 5k can, not only has it succeeded in reducing waste and processing as industrial waste, but also prevents wasteful use of resources. The significance of helping to prevent global warming is great.

  (Advantage 5) Since the ink supply power is not required and the natural flow system is used, a large amount of compressed air is not required, and a small amount of compressed air is used for the ink supply hose 11 only to open and close the crimp terminal 16 via the air cylinder 12. , Achieved significant savings in compressor electrical energy.

  (Merit 6) Since the inner surfaces of the ink hopper 1, the cock 8, and the ink supply hose 11 are covered with Teflon (registered trademark) or silicon resin 2 which does not easily adhere to ink, the cleaning can be easily performed, so that repeated use is possible. It has become possible.

  (Merit 7) Since supply to the ink fountain 21 is stopped by the supply hose crimping method, cleaning is easy because a normal cock or valve is not used.

  (Merit 8) By removing the supply hose and closing the cock 8 for transporting the hopper, it can also be used as a transport container for the remaining meat (excess ink, waste ink), eliminating the need for previously used tin 5k cans. However, we succeeded in saving resources and reducing heavy oil and carbon dioxide emissions from incineration.

  The present invention will be described below. In order to facilitate understanding of the present invention, reference numerals in the accompanying drawings are added in parentheses, but the present invention is not limited to the illustrated embodiment.

  The spot color ink supply device according to claim 1, wherein the spot color ink supply device in an offset printing machine has an opening at a lower end and an ink storage means (1) in which the spot color ink is accommodated, and A cock (8) that is detachably attached to the opening and adjusts the outflow amount of the special color ink, and an ink supply nozzle that has one end detachably attached to the cock and the other end communicates with the ink fountain of the offset printing press (11), and Teflon (registered trademark) or silicon resin (2) is coated in the flow path through which the special color ink flows from the ink storage means through the cock and from the ink supply nozzle. It is characterized by that.

  The spot color ink supply device according to claim 2 is the spot color ink supply device according to claim 1, wherein the ink storage means is installed at a position higher than the ink fountain to which the spot color ink is to be supplied. It is characterized by that.

  The spot color ink supply device according to claim 3 is the spot color ink supply device according to claim 1 or 2, wherein the ink supply nozzle is formed of an elastic member, and Adjusting means (16, 17) for adjusting the passing amount of the special color ink passing through the ink supply nozzle by pressing or releasing a part thereof is provided.

  The spot color ink supply device according to claim 4 is the spot color ink supply device according to any one of claims 1 to 3, wherein the offset printing machine includes an ink amount supplied to the ink fountain. Is provided, and the adjusting means adjusts the pressure-bonding force to the ink supply nozzle based on the information detected by the sensor.

  The present invention provides a solution to the above-mentioned problems that occur on a daily basis in printing operations. Instead of a tin ink can with a capacity of 5 kg, which has been used in the past, it is made of iron or stainless steel with a capacity of 20 kg. Permanently shaped with a cylindrical lower part with Teflon (registered trademark) or silicon resin 2 coated on all inner surfaces so as to make it difficult for ink to adhere to the inner surface, and an opening formed in the lower part. Uses an ink container (hereinafter referred to as hopper 1) that functions as an ink storage means of the present application that can withstand use, and is similar to the easy-to-clean cock 8 that is coated with Teflon (registered trademark) or silicon resin 2 inside the spot color ink. Ink supply hose 11 having a Teflon (registered trademark) or silicon resin 2 coated on the inner surface for easy removal In order to protect the cock 8 from being damaged during transportation and for the purpose of stable installation of the hopper 1, a separate metal hopper skirt 6 is installed, and the cock 8 can be easily operated, and the ink supply hose 11 A notch 6 is formed in a part of the side surface of the hopper skirt 6 so that it can be attached and detached while being connected. When the hopper 1 is transported, it can be stably transported by being set on a transport cart 32 (see FIG. 5) provided with another hopper skirt 6.

  On the other hand, the hopper 1 is coated with Teflon (registered trademark) or silicon resin 2 on the inner surface of the container, the inner surface of the cock 8 and the inner surface of the ink supply hose 11 for the purpose of facilitating cleaning after the ink has been supplied. In the ink supply, the hopper 1 is placed at a higher position in the vicinity of the ink fountain 21 so as to be supplied to the ink fountain 21 under a natural flow utilizing a drop. Therefore, the present invention is characterized by having no pumps for supplying ink.

  Further, the ink supply hose 11 is set on the crimp terminal 16 and the crimp terminal receiver 17 by a signal of a commercially available ink level sensor 25 with a motor driven push screw or a small air cylinder 12 so that the ink supply hose 11 is crimped. Shut off the supply. That is, when the gap between the upper surface of the ink reservoir 24 in the ink fountain 21 and the ink level sensor 25 becomes large, the electromagnetic dose between them becomes dilute and an ink supply signal is transmitted. On the other hand, when ink is supplied and the ink level sensor 25 and the upper surface of the ink come close to each other, the electromagnetic dose reaches a specified amount, and a stop signal for ink supply is transmitted and stopped.

  In addition, in order to facilitate cleaning that is essential when changing colors, the inner surface of the apparatus, that is, the surface in contact with the ink, is only covered with Teflon (registered trademark) or silicon resin 2 having a property of repelling ink, that is, an oil component. In addition, it is characterized by eliminating the possibility that inks such as pumps, solenoid valves, cocks, and joints having complicated irregularities on the inner surface may remain even in a small amount. However, the cock 8 is at least necessary to prevent ink leakage during transportation, but the cock 8 is screwed so that it can be easily disassembled and, of course, the inside can be easily cleaned. Is a feature.

  Accordingly, since the hose 11 does not include a cock that is difficult to clean, it can be easily disassembled into the hopper 1, the cock 8, and the ink supply hose 11 at the time of cleaning after the ink has been used. It is a feature that can be done.

  The ink supply device of the present invention will be described with reference to FIGS.

  As mentioned above, when using special color ink, the biggest problem that the existing ink supply device (see Fig. 1 and Fig. 2) cannot be used is that the ink container, supply piping, and pressure pump are changed when the ink color is changed. If the ink on the inner surface of all the supply equipment such as the on-off valve and the ink nozzle is not completely washed, there is a problem that the color tone becomes cloudy and the original special color tone is impaired. In particular, there are many clear and bright colors, and there are many colors that cannot be produced by combining the standard four colors of black, indigo, red, and yellow, so even a slight color mixture is not allowed. Therefore, it is essential that the material and structure can be easily washed when changing colors.

  First, by adopting a cylindrical cone-shaped ink hopper 1 in which the inner surface of the ink container 1a is coated with Teflon (registered trademark) or silicon resin 2, the physical properties of the oily substance of Teflon (registered trademark) or silicon resin 2 are difficult to adhere. By using it, the oil adhesion resistance of the inner surface of Teflon (registered trademark) or the silicone resin 2 significantly attenuated the ink adhesion resistance, allowing gravity to flow down naturally and succeeding in eliminating complicated pumping means such as a pump. By adopting a conical shape at the bottom of the ink hopper 1, the ink can flow down efficiently to the end. Next, the simplest screw-type ball tap cock 8 having a structure coated with Teflon (registered trademark) or silicon resin 2 is attached to the lower portion of the conical ink hopper 1 to enable easy disassembly and cleaning. . On the other hand, since the lower part of the ink container 1a has a conical shape, the hopper skirt 7 that holds the lower part of the ink container 1a is employed to ensure stability during transportation and installation. The hopper skirt 7 is, for example, a pedestal having an opening for holding the lower part of the ink container 1a in the upper part.

  In addition, the ink supply hose 11 having elasticity such as a Teflon (registered trademark) resin hose or rubber whose inner surface is coated with Teflon (registered trademark) or silicon resin 2 is fixed to the cock 8 with a hose fixing band 10. During cleaning, the ink hopper 1, the cock 8 and the ink supply hose 11 can be easily detached and cleaning can be performed efficiently. An ink nozzle 20 is fixed in advance to the tip of the ink supply hose 11. Therefore, when setting on the printing press, the ink hopper 1 and the ink supply hose 11 are set on the hopper skirt 7 in a state where they are fixedly connected by the fixing band 10.

  Next, the intermediate portion of the supply hose 11 is set between the ink stopper crimp terminal 16 and the ink stopper crimp terminal receiver 17. The length of the supply hose 11 is set so that the nozzle 20 is positioned at the center of the ink fountain 21. In order to hold the middle of the supply hose, a plurality of ink supply hose holders 19 are attached to a machine frame or stay and the ink supply hose 11 is attached. Fix it.

  Next, when the special color ink 3 of the ink fountain 21 decreases, an existing ink level sensor 25 is used to detect the amount of the standard color ink 33 supplied to the ink fountain 21 via the existing ink supply pipe 29. The signal received by the control box 27 is transferred to the newly installed relay box 30 and the newly installed air solenoid valve 18B is opened to send air to the air cylinder 12 attached to the air cylinder fixing frame 13 and the tip of the air cylinder 12 When the ink stopper crimping terminal 16 is pulled up and the crimping of the ink supply hose 11 is released, the natural flow of the special color ink 3 in the ink container 1a starts.

  On the other hand, when the special color ink 3 is sufficiently replenished in the ink fountain 21 and the distance between the ink reservoir 24 and the ink level sensor 25 is narrowed, the full signal is transferred to the relay box 30 via the existing control box 27 and the air solenoid valve 31. As a result, the air hose 18A opens, and the air of the air hose 18B is released at the same time. The ink stopper crimping terminal 16 at the tip of the air cylinder 12 is crimped between the ink stopper crimping terminal receptacles 17 and the ink supply hose 11 is crimped. The natural flow of water is stopped and the ink supply is stopped.

  Since there is no complicated mechanism such as a cock or a valve in the supply hose 11 in this way, there is an advantage that cleaning at the time of color change can be easily performed, and the ink hopper 1 and the ink supply hose 11 can be connected. Since it can be replaced as a unit and there is no need to provide a motor, a cock solenoid valve, etc. as in the prior art, there is an advantage that the cost can be greatly reduced. Further, as described above, since the existing ink level sensor 25 can be diverted when using the special color ink, the economic merit of avoiding double investment of the ink level sensor 25 is great.

  A hose fixing holder 9 for holding the ink supply hose over the outer periphery is provided on the side surface of the ink container 1a. Then, as shown in FIG. 5, the replaced empty ink hopper 1 and the supply hose 11 are wound around the hose fixing holder 9 for transportation provided in the hopper 1 through the notch 6 through the notch 6 from the hopper skirt 7. A cap is put on the sprinkling nozzle 20 so that the ink does not leak through the nozzle cap 20A, and the cap is set and transported on the skirt 7 provided on the transporting carriage 32 shown in FIG.

  Cleaning is in a state where almost no ink is adhered due to the coating of Teflon (registered trademark) or silicon resin 2, but as described above, it is disassembled into the hopper 1, the cock 8 and the ink supply hose 11 and a small amount is washed by the high pressure washer. The ink can be washed efficiently by spraying a solvent and washing away a small amount of residual ink. Since the ink supply hose 11 may have ink remaining in the vicinity of the ink stopper crimping terminal 16, after the residual ink is pushed out by air blow, high-pressure cleaning is performed using a small amount of solvent in the same manner as the hopper 1. Since the internal structure is smooth, residual ink can be removed by simple cleaning, and until now it has not been possible to automatically supply special color inks. Because of the work, we were able to eliminate printing complaints due to insufficient ink replenishment.

  Furthermore, the standard color ink was always taken out from the ink fountain before the start of special color printing, but in the past, 5k cans were used to store the remaining ink, and the industrial waste was collected and incinerated as industrial waste for a fee. However, by using this ink hopper, it is possible to collect only ink, and instead of 5k cans, it is possible to collect the collected ink in drum cans. The road to re-use can be opened, and it has great effects on economic and global environmental conservation.

  As described above, the spot color ink supply device according to the present embodiment is a spot color ink supply device in an offset printing machine, and has an opening at the lower end and the hopper 1 in which the spot color ink is accommodated. The cock 8 is detachably attached to the opening, and adjusts the amount of the spot color ink. The ink supply hose has one end detachably attached to the cock and the other end communicates with the ink fountain of the offset printing press. 11, and Teflon (registered trademark) or silicon resin 2 is coated inside the flow path through which the special color ink flows out of the ink supply hose 11 from the hopper 1 through the cock 8.

  According to the special color ink supply apparatus configured as described above, since the Teflon (registered trademark) or the silicon resin 2 is coated inside the flow path of the special color ink (part where the special color ink contacts), the special color ink ( The oil component) is difficult to adhere, and the hopper 1, cock, and ink supply hose 11 can be easily attached and detached, so that the ink can be easily washed and used repeatedly. ing.

  The hopper 1 is installed at a position higher than the ink fountain to which the special color ink is to be supplied. In this way, since the special color ink is supplied to the ink fountain by its natural flow under its own weight, a pump or the like for supplying ink as in the prior art is not necessary, and the cost can be reduced.

  The ink supply hose 11 is formed of an elastic member, and the ink supply hose 11 is installed between the ink stopper crimp terminal 16 and the ink stopper crimp terminal receiver 17. The passage amount of the special color ink passing through the ink supply hose 11 is adjusted by pressing or releasing a part of the supply hose 11 from the outside.

  Further, the offset printing press is provided with a sensor (ink level sensor 25) when the amount of ink supplied to the ink fountain is detected, and the ink stopper crimping terminal 16 is based on the information detected by the sensor. The pressure-bonding force to the ink supply nozzle is adjusted.

  In this way, the amount of ink supplied to the ink fountain 21 can be appropriately adjusted with a simple structure.

This is a conventional standard color ink automatic supply system. This is a simple automatic supply system for conventional standard color pail ink. This is a current method for supplying special color inks. 1 is a structural diagram of an automatic ink supply device of the present invention. It is a conveyance procedure figure which concerns on the automatic ink supply apparatus of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hopper 2 Teflon (trademark) or silicone resin 3 Special color ink 6 Notch 7 Hopper skirt 8 Cock 9 Hose fixing holder 11 Ink supply hose 12 Air cylinder 16 Ink stopper crimp terminal 17 Ink stopper crimp terminal receptacle 20 Ink supply nozzle 20A Nozzle Cap 21 Inkwell 25 Ink level sensor (electromagnetic capacity detection)

Claims (4)

In the special color ink supply device in the offset printing machine,
An ink storage means having an opening at the lower end and containing the special color ink therein;
A cock that is detachably attached to the opening and adjusts the outflow amount of the special color ink;
An ink supply nozzle that has one end detachably attached to the cock and the other end communicates with an ink fountain of the offset printing press,
An apparatus for supplying special color ink, characterized in that Teflon (registered trademark) or silicon resin is coated in a flow path through which the special color ink flows out from the ink storage means through the cock and from the ink supply nozzle.   2. The spot color ink supply device according to claim 1, wherein the ink storage means is installed at a position higher than an ink fountain to which the spot color ink is to be supplied. The ink supply nozzle is formed by a resilient member,
3. The adjusting device according to claim 1, further comprising an adjusting unit that adjusts a passing amount of the special color ink that passes through the ink supply nozzle by pressing or releasing a part of the ink supply nozzle. Special color ink supply device. The offset printing machine is provided with a sensor for detecting the amount of ink supplied to the ink fountain,
4. The spot color ink supply device according to claim 1, wherein the adjusting unit adjusts a pressure-bonding force to the ink supply nozzle based on information detected by the sensor. 5. .

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