CN204322684U - Damping loop water device - Google Patents

Abstract

The utility model relates to a kind of damping loop water device, comprises upper and lower tank, and between the clean unit that arranges, and upper and lower two chests.The utility model improves the purifying property of damping water, and work and the liquid waste processing work of changing damping water can be omitted, and maintenance work can be simplified, and maintenance cost can reduce.

Description

Damping loop water device

Technical field

The utility model relates to the damping water EGR for printing equipment, especially can purify the offset printing damping water circulator of damping water.

Background technology

Common, in hectographic printing, damping water is indispensable, and needing provides a kind of damping water EGR to purify its damping water.

Damping water EGR traditionally so works: clean damping water supplies each color print, through regeneration after returning, then becomes clean damping water and is again fed into (such as, see patent document 1 [1]) in each water receptacle.

But above-mentioned conventional damper water circle device but exists such problem, due in a device, the damping water of all print colors is purified by a cleaning equipment, this makes it cannot by Economical Purification, owing to polluting and the going bad of damping water, has manufactured trouble to operating process.In addition, but the persistent loop of damping water makes to pollute and rotten to acquire a certain degree, and needs staff to regularly replace it.Consequently, time and efforts needs to drop into the replacing operation carrying out damping water, and because damping water waste liquid is regarded as industrial waste, it is necessary for entrusting specialized agency to dispose waste liquid, and which increases operating cost.

Summary of the invention

In view of the above problems, the purpose of this utility model is to provide a kind of damping water EGR to improve purifying property, and saves replacing and the wastewater treatment of damping water.

The utility model solves the technical scheme that its technical problem adopts: the damping loop water device in the utility model, comprise upper can, bottom tank, upper tank, bottom water tank and clean unit, it is characterized in that, described clean unit is installed between upper tank and bottom water tank, upper can is through to be arranged in upper tank, and bottom tank is through to be arranged in the water tank of bottom.When damping water refluxes from described printing machine, it will by clean unit purifying mentioned above, and be stored in bottom water tank, after being transported to upper tank, printing machine will be provided to by water as a supplement, stop a predetermined time wherein, before the printing operation of each printing machine terminates, residual damping floods upper can and the elapsed time of bottom tank are cycle regular time.

Damping water EGR is preferably formed like this: when described upper tank water level decreasing is to demarcation lower limit, the supplementary beginning of make-up water; And when water level exceedes predetermined upper limit value, the supplementary stopping of supplementing water.It preferably forms and makes overflow device water tank at an upper portion thereof, and the water in upper tank is able to by overflow device and contacts clean unit.Same, when bottom cistern water level drops to demarcation lower limit, stop sending damping water to upper tank; And when water level exceedes predetermined upper limit value, the damping water starting to send out is to upper tank.Meanwhile, the damping water EGR of preferred disposition can be provided to the printing machine operation of each generation different colours very expediently.In addition, clean unit is equipped with removable filter water tank and collapsible except water pond, and is contained in the interchangeable water diversion disk of Rose Box.

The beneficial effects of the utility model are, improve the purifying property of damping water, and work and the liquid waste processing work of changing damping water can be omitted, and maintenance work can be simplified, and maintenance cost can reduce.

[accompanying drawing explanation]

Below in conjunction with drawings and Examples, the utility model is further illustrated.

Fig. 1 shows an embodiment of the present utility model.

Fig. 2 is a perspective view of the present utility model.

Fig. 3 is the perspective view of clean unit of the present utility model.

Fig. 4 is the stereogram of the state that the filter of the utility model clean unit is replaced.

[detailed description of the invention]

In embodiment of the present utility model, damping water EGR 3a is provided with upper can 8 and bottom tank 9, clean unit 10 is between water tank 8 and 9.Upper can 8 has level sensor 11 to detect the water level in top box 8, and overflow mechanism 12 provides the water of upper tank 8, and supplies the water of top box from bottom tank 9.

Connect from the lower surface of top box and be connected with freezer 4a with return duct 15 via supply pipe 14, each supply pipe 14 and return duct 15 have black soy sauce head valve (not marking), they insert freezer 4a and are connected with top box 8, thus make refrigerator simplify with top box and be separated.In addition, arrive feed pipe 16 from the lower surface of top box via supply-water pump 31, the upstream side of supply-water pump 16 and downstream connect black soy sauce head valve (between each supply-water pump 16 and top box 8), thus simplify more changing jobs of feed pipe.

Overflow mechanism 12 is duplexs, is all cylindrical shape by inner core 17 and urceolus 18, and wherein, inner core 17 is slightly lower than urceolus 18, and multiple through hole 19 and 20 is on urceolus 18.

By above-mentioned configuration, as shown in the figure, damping water by 8 flowings between through hole 19 and 20, then by the upper end of inner core 17, and flows into inner core 17 between 17 and 18.

Level sensor 11 has three electrode bars 21,22,23, and the length of each root is different from each other.Nowel 9 is provided with level sensor 24 (having three electrode bars 25,26,27), to detect the water level in lower channel 9.Analyze quantitatively measuring device 6 by magnetic valve 28 and nowel 9, the upstream side of magnetic valve 28 is connected black soy sauce head valve (not marking) with downstream, is eachly clipped between circulating pump 29 and nowel 9, and the replacing operation of circulating pump 29 is simplified.

As can be seen in the figure, in Fig. 3 and 4, clean unit 10 has that be formed as can horizontal slip, and dismountable multistage filtering case 30 (as Fig. 3 level filter 2), accommodate filter 33 in each Rose Box.

Clean unit 10 has a kind of folding except water pond 34, should be positioned at vertex angle part under clean unit except water pond.

When replacing filter 33, by the filter cabinet 30 of the cutwater dish 34 rotated and the often pair of cutwater dish 34 slided on it, water drips down from reception water from described water knockout drum dish 33, received by water diversion disk 34 and be allowed to enter in nowel 9, thus prevent floor got wet and dye, make the replacing of filter 33 more smooth.

Next, to the action of damping water EGR 3a of the present utility model, with reference to Fig. 1,2 explanations. in addition, all damping water circulator 3A, 3B, 3C, the action of 3D is identical, and therefore, the action of this damping water EGR 3a is described to a general example.

The top box 8 that damping water is stored in said apparatus 3a is transmitted in printing machine 2a by water supply pump 16, is then assigned on water receptacle 7a.In printing machine 2a, water is from roller (not shown) and water receptacle 7a to printed panel, the surface wherein performing printing contacts with water, and the damping water do not consumed in printing machine 2a is collected into relay pot 5a, then turns back to the clean unit 10 of damping water EGR.

In clean unit 10, the damped water-band in the print job of printing machine 2a in paper powder or other analogs is walked, and is removed by filter 33, and in filter cabinet 30, the damping water of purifying is stored in nowel 9.

Water level in nowel 9 is monitored by level sensor 24, but during upper end level (higher limit) of water level higher than the 3rd electrode 27, circulating pump 29 is started to carry damping water by driving.

Same, when lower end level (lower limit) of water level higher than the 3rd electrode 27, circulating pump 29 quits work.

The damping water sent from nowel 9 is fed to top box 8 by feeding mechanism and stored therein.

Water level in top box 9 is monitored by level sensor 11, but during upper end level (higher limit) of water level higher than the 3rd electrode 27, circulating pump 29 is started to carry damping water by driving.

Same, when lower end level (lower limit) of water level higher than the 3rd electrode 27, magnetic valve 28 is opened, and the normal concentration damping water with etching solution adds to top box 8 from analysis proportioning device 6, further, damping water can supply further by the top box 8 of circulating pump 29.

On the other hand, but water level in top box 8 more than the 3rd electrode bar 23 bottom level (higher limit) time, magnetic valve 28 is closed, the supplementary stopping of damping water.

The damping water temperature of son top box 8 is not normally by fluid temperature indicator (marking), and according to from monitoring result, damping water is frozen in device 4a the temperature being cooled to specify, makes the damping water temperature remained constant in top box 8.

The etching solution with normal concentration can be fed into top box 8 in the damping water under assigned temperature, and then damping water is transferred to printing machine 2a and top box 8, and circulates between top box 8 and printing machine 2a.

Even if comprise the damping water of suspended material sensitive paper powder or other powder at top box 8, damping water flowing between inner core 19 and urceolus 20 via through hole 19 and 20, then the end of inner core is flow through, suspended material is on the top of damping water, enter inner core 17 and be fed into clean unit 10, carry out purifying, thus make clean damping water reliably be supplied to printing machine.

As mentioned above, damping water circulates and is purified between damping water EGR and printing machine, in printing machine, when stopping the instruction in printing machine, from controlling to arrange the order that sends to printing machine and carry out printing to the end of print job, by operator manually or automatically by presetting timer operation, thus make closed electromagnetic valve, and damping water is stopped from analyzing the transmission of proportioning device 6 to nowel 8.After this, the damping water staying low slot 9, by circulating pump 29, before top box residue damping water is finished, within the predetermined time, is supplied to top box 8, and is consumed in wherein.Therefore, more than illustrate, according to this damping water circulator 3a, 3b, 3c, in the embodiment of 3d, magnetic valve 28 within the predetermined time, namely before the operation end of printing machine 2a and the supply of damping water, and under the prerequisite that is all consumed in top box and in nowel of damping water, the replacing damping water operation of periodicity has not just needed, and does not have required wastewater treatment.Consequently, maintenance work can be simplified, and cost can be lowered.In addition, flow into damping water from upper tank 8, the purification efficiency of damping water can be improved, improve purifying property.

The printing machine of the corresponding generation different colours of each damping water circulator, therefore, each damping water is only by the process of a damping water device, and each damping water EGR can diminish, the retention time of damping water is shortened, and is convenient to the etching concentration and the ph value that control buffered water.Some side effect pictures cause the excessive emulsification of other color to be prevented from simultaneously.

The corresponding damping water EGR of each low temperature chamber, thus the temperature of often kind of damping water is independent, improves printing precision.

In addition, can close when damping water EGR and corresponding printer do not use, improve process economy, the etching solution of preferred each printing machine.In the above-described embodiments, each damping water circulator is only a kind of color service, but this is an example, in fact, a damping water EGR can be used in two printing machines and be operating as different colors, thus the quantity of the unit of damping water circulator can change in many ways.In addition, in actual production, multiple analysis proportioning device can be had to install in a device.And IPA (isopropyl alcohol) can add in damping water outside etching solution.

Claims (5)

1. a damping loop water device, comprise upper can, bottom tank, upper tank, bottom water tank and clean unit, it is characterized in that, described clean unit is installed between upper tank and bottom water tank, upper can is through to be arranged in upper tank, and bottom tank is through to be arranged in the water tank of bottom.

2. damping loop water device according to claim 1, is characterized in that: when described upper tank water level decreasing is to demarcation lower limit, the supplementary beginning of make-up water; And when water level exceedes predetermined upper limit value, the supplementary stopping of supplementing water.

3. damping loop water device according to claim 1, is characterized in that: described upper tank is also provided with overflow device, and upper tank damping water arrives clean unit via above-mentioned overflow mechanism.

4. damping loop water device according to claim 1, is characterized in that: when described bottom cistern water level drops to demarcation lower limit, the damping water sent out will be stopped to upper tank; And when water level exceedes predetermined upper limit value, be activated between the damping water sent out to upper tank.

5. damping loop water device according to claim 1, is characterized in that: described clean unit is equipped with removable filter water tank and collapsible except water pond, and is contained in the interchangeable water diversion disk of Rose Box.