The invention generally relates to immersion rinsing and spray rinsing.
Immersion rinsing and spray rinsing are techniques used by every metal finisher as process chemistry needs to be rinsed off the parts before those parts are moved between processes. The RinseMaster® (U.S. Pat. No. 6,702,895) only utilized spray rinsing while achieving the water savings equivalent to a 5 station counterflow rinse. While 99% of all metal finishers utilize immersion rinsing to some degree, some also spray rinse along with immersion but separate tanks are used. Immersion rinsing is the easiest way to rinse plus you have exponential savings for every additional rinse station added.
In one embodiment, basic rinsing is by immersion or counterflow rinsing. After the barrel has been immersed in a process chemistry, the barrel is always rinsed before moving to the next process tank. Not doing so increases cross contamination which then reduces a specific chemistry from doing its job which then adversely affects good adhesion, a byproduct of plating. Typical barrels are usually immersed in either 1, 2, 3 or more (usually no more than 3) counterflow rinse tanks where contamination is exponentially reduced by the number of rinse stations. There is an exponential relationship between using less water and more rinse tanks to achieve the same rinse ratio. An immersion rinse tank is defined as a tank filled with water which has a fresh water supply on one side and a weir on the other. Water is brought into the tank at a rate which dissolves the contamination to a point where parts are thought clean enough to move on to the next process.
A product called the RinseMaster® (RM) offers the equivalent of a 5 station counterflow rinse in one station yet it's actually better than a 5 station counterflow rinse tank in that the final rinse is fresh water rather than the concentration (however small) in the 5th tank. The philosophy of a RM has 3 counterflow rinses and 2 recirculation sprays. Example: we will move 10 gallons of water per rinse through a RM. There are (2) tanks inside the RM cabinet which is off line. Tank 2 is the ‘dirtiest’ while tank 1 is the cleanest, 1st rinse sprays 10 gallons from tank 2 over the barrel then sends that 10 gallons to waste water treatment (WWT). The 2nd rinse is a recirculation of the remaining water in tank 2. The 3rd rinse is a counterflow where 10 gallons is taken from tank 1, sprayed over the barrel and return to tank 2. The 4th rinse is a recirculation of the remaining water in tank 1. The 5th rinse takes 10 gallons of fresh water, sprays it over the barrel returning to tank 1. While the RM is superior to traditional immersion rinsing, the RM is costly and has many moving parts which are difficult for some people to understand.
The present invention solves these problems as well as others.
Provided herein are systems, methods and apparatuses for an immersion and spray rinsing system comprising a tank with improved cleanliness of the parts between immersion and spray. The immersion spray and rinse system generally comprises a rinse tank operably coupled with a plurality of valves, a pump, a holding tank and a Programmable Logic Controller (PLC); the rinse tank including a receiver and a bracket for receiving a barrel, and the rinse tank including a spray system for spraying the barrel; the holding tank stores contaminated rinse water and includes an overflow drain, a water sensor to sense the level of water in the holding tank; the PLC controls the pump and the plurality of valves to direct water back and forth from the holding tank to the rinse tank and to a waste tank.
A method of immersing and spraying a barrel is disclosed and generally comprises: disposing a barrel into a rinse tank and partially flooding the rinse tank to a height F with contaminated water; revolving the barrel in contaminated rinse water for a first rinse; discharging a counterflow volume W to a waste stream; discharging the remainder of volume H in the rinse tank to a holding tank; spraying a first water spray over the inside of the barrel; spraying a second water spray over the inside of the barrel; removing the barrel from the tank; and pumping a portion of contaminated water in the holding tank back to the rinse tank.
The methods, systems, and apparatuses are set forth in part in the description which follows, and in part will be obvious from the description, or can be learned by practice of the methods, apparatuses, and systems. The advantages of the methods, apparatuses, and systems will be realized and attained by means of the elements and combinations particularly pointed out in the appended claims. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the methods, apparatuses, and systems, as claimed.
In the accompanying figures, like elements are identified by like reference numerals among the several preferred embodiments of the present invention.
The foregoing and other features and advantages of the invention are apparent from the following detailed description of exemplary embodiments, read in conjunction with the accompanying drawings. The detailed description and drawings are merely illustrative of the invention rather than limiting, the scope of the invention being defined by the appended claims and equivalents thereof.
Embodiments of the invention will now be described with reference to the Figures, wherein like numerals reflect like elements throughout. The terminology used in the description presented herein is not intended to be interpreted in any limited or restrictive way, simply because it is being utilized in conjunction with detailed description of certain specific embodiments of the invention. Furthermore, embodiments of the invention may include several novel features, no single one of which is solely responsible for its desirable attributes or which is essential to practicing the invention described herein. The words proximal and distal are applied herein to denote specific ends of components of the instrument described herein. A proximal end refers to the end of an instrument nearer to an operator of the instrument when the instrument is being used. A distal end refers to the end of a component further from the operator and extending towards the surgical area of a patient and/or the implant.
The use of the terms “a” and “an” and “the” and similar referents in the context of describing the invention are to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. It will be further understood that the terms “comprises,” “comprising,” “includes,” and/or “including,” when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
Recitation of ranges of values herein are merely intended to serve as a shorthand method of referring individually to each separate value falling within the range, unless otherwise indicated herein, and each separate value is incorporated into the specification as if it were individually recited herein. The word “about,” when accompanying a numerical value, is to be construed as indicating a deviation of up to and inclusive of 10% from the stated numerical value. The use of any and all examples, or exemplary language (“e.g.” or “such as”) provided herein, is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention unless otherwise claimed. No language in the specification should be construed as indicating any nonclaimed element as essential to the practice of the invention.
References to “one embodiment,” “an embodiment,” “example embodiment,” “various embodiments,” etc., may indicate that the embodiment(s) of the invention so described may include a particular feature, structure, or characteristic, but not every embodiment necessarily includes the particular feature, structure, or characteristic. Further, repeated use of the phrase “in one embodiment,” or “in an exemplary embodiment,” do not necessarily refer to the same embodiment, although they may.
As used herein the term “method” refers to manners, means, techniques and procedures for accomplishing a given task including, but not limited to, those manners, means, techniques and procedures either known to, or readily developed from known manners, means, techniques and procedures by one of ordinary skill in the art.
As shown in
The immersion spray and rinse system includes a process whereby a single rinse tank is provided to offer more efficient rinsing than what is now done traditionally in three counterflow rinse tanks. The immersion spray and rinse system leaves the barrel with a fresh water spray rather than with the concentration of that contained in a traditional three station counterflow rinse tank.
As shown in
According to one embodiment,
According to one embodiment,
According to one embodiment,
According to one embodiment,
In one embodiment, the barrel 110 is a HLM ST barrel that will work in this system. As shown in
In one embodiment, the Holding Tank 130 is an off-line tank used to store contaminated rinse water which is constantly turned over after each process. This Holding Tank 130 includes an overflow drain 140 for safety and in case a valve 190 does not open or close. The holding tank can also include a water sensor 132 to sense the level of water in the holding tank, as shown in
The PLC 180 sends instructions for how long a valve 190 stays open and in what direction the pump 182 must push water. The programmable logic controller (PLC), or programmable controller is an industrial digital computer which has been adapted for the control of manufacturing processes, such as assembly lines, or robotic devices, or any activity that requires high reliability control and ease of programming and process fault diagnosis.
The rinsing system 100 works by having the rinse tank 120 prefilled to a given height with water, the ST barrel is delivered to the tank and the process begins. The PLC 180 controls all moves of water flow. First, the barrel rotates in the water for an immersion rinse. After a pre-determined period of time, a precise amount of water is pumped from the rinse tank to WWT. The amount of water lost to WWT will be made up with fresh sprayed water. Second, a volume of immersion water is then pumped to the holding tank leaving a space W between the bottom of the barrel and the water level in the rinse tank. Third, the barrel continues rotating as 50% of water which was sent to WWT is now brought in as the first of two fresh water sprays. Fourth, the barrel is allowed to drip off then the second or remaining 50% of fresh water is sprayed over and into the rotating barrel. The barrel again is allowed to drip off and the hoist removes the barrel from the tank. Fifth, as soon as the barrel leaves, water from the holding tank is pumped back to the rinse tank. The process begins again with another barrel entering the tank.
The immersion spray and rinse system accomplishes as good a rinse as a RM while using more water, however, less water than traditional immersion rinsing plus the parts become cleaner. The immersion spray and rinse system, like the RM saves time and space as the barrel never leaves the tank. Doing all rinsing in one tank frees up crane time which in some cases reduces the number of cranes. The immersion spray and rinse system utilizes the same ST barrel and single station tank design as with RM but does it for less the cost and without the complexity. In fact, it would take a series of at least three tanks containing cleaner and cleaner water to equal the dilution ratio achieved by this system as the final spray is fresh water.
The immersion spray and rinse system saves water, space, time and operating expense. The immersion spray and rinse system reuses water. The immersion spray and rinse system only requires a single tank slot while an immersion process of equal water quantity requires three tank slots. The immersion spray and rinse system does not include a hoist that leaves the barrel in this device allowing it to perform the previously stated 9 steps as opposed to counterflow rinse tanks where a hoist is required to move the barrel from tank-to-tank. This device is not as efficient as a RM (which only sprays) in terms of water usage however It offers an immersion and double spray rinse in one tank. As the water in the holding tank is being constantly turned over makes this device much more efficient than an immersion rinse or a spray rinse.
The immersion spray and rinse system moves water from one place to another which results in cleaner parts. A PLC 180 controls a pump and valves 190 situated between the rinse tank and holding tank. The rinse tank is where the immersion and spray rinse take place. The holding tank is where water is stored in between barrel moves. Whatever amount of water is brought in as fresh is exactly the amount that is discharged but not before it mixes with the remaining water in the holding tank. A valve is a device that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways. Valves are technically fittings, but are usually discussed as a separate category. In an open valve, fluid flows in a direction from higher pressure to lower pressure.
The immersion/spray and rinse system works with both immersion and spray rinsing being accomplished in sequential order.
The immersion/spray and rinse system has a barrel that sprays from the inside of which is a patented HLM product. The immersion/spray rinse system combines 2 different forms of rinsing, immersion and spray in one tank. While bath turnover constantly takes place, chemistry concentrations remain the same in the immersion spray and rinse system as long as drag-out remains constant.
In an alternative embodiment, the system would require a barrel to have the ability to allow a liquid, whether it be water or process chemistry, to pass from an outside source or from the tank itself through the barrel structure and into the cylinder spraying directly onto the parts. Attempting to push water through the barrel's perforations from the outside in, which cover about 25% of the total open area, while the cylinder is rotating is ineffective plus it would push any trapped contamination back inside the cylinder. This is contrary to the other embodiment, which has the perforations acting as openings for water to pass out from and away from the parts. It is spraying water directly onto the parts that makes this system work. And while both have a design which sprays, neither previous systems have used it for a rinsing purpose. They do not employ this combination flooded/spray rinse design.
While there are four components to the immersion spray and rinse system; ST barrel, rinse tank, holding tank and a PLC controlled pump additional parts and components may be added. While a holding tank can be positioned differently or the immersion rinse water can be channeled to different places.
Data and flow charts: The rinse analysis tables 1 and 2 determines that equilibrium is met after the 66th rinse cycle and as long as parts are determined clean enough, the amount of incoming water vs a barrel's drag-out will constantly achieve the desired results.
Times for immersion, and both fresh water sprays are variable and depend on ‘loads per hour’. For one embodiment, if a line is producing 6 loads per hour, it is then understood that the hoist will visit the rinse tank every ˜10 minutes (˜60 min/6). The user then has ˜10 minutes to run the sequence of 11 steps needed to produce the rinse but has control of changing the program within the ˜10 minutes. One embodiment is to finish the rinsing process as the hoist returns to pick up the rinsed barrel, which does not allow parts to prematurely dry of which can produce stains. The time frames and rinse levels are variable but the time it takes to move water must be accounted for. The range of the immersion, waste, first spray, pause, second spray, and fill for immersion times and levels may be adjusted, accordingly.
Computer Implemented Component or System
As used in this application, the terms “component” and “system” are intended to refer to a computer-related entity, either hardware, a combination of hardware and software, software, or software in execution. For example, a component can be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a server and the server can be a component. One or more components can reside within a process and/or thread of execution, and a component can be localized on one computer and/or distributed between two or more computers.
Generally, systems may include program modules, which may include routines, programs, components, data structures, etc. that perform particular tasks or implement particular abstract data types. Moreover, those skilled in the art will appreciate that the inventive methods can be practiced with other computer system configurations, including single-processor or multiprocessor computer systems, minicomputers, mainframe computers, as well as personal computers, hand-held computing devices, microprocessor-based or programmable consumer electronics, and the like, each of which can be operatively coupled to one or more associated devices.
The illustrated aspects of the innovation may also be practiced in distributed computing environments where certain tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules can be located in both local and remote memory storage devices.
A computer typically includes a variety of computer-readable media. Computer-readable media can be any available media that can be accessed by the computer and includes both volatile and nonvolatile media, removable and non-removable media. By way of example, and not limitation, computer-readable media can comprise computer storage media and communication media. Computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer-readable instructions, data structures, program modules or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by the computer.
Communication media typically embodies computer-readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism, and includes any information delivery media. The term “modulated data signal” means a signal that has one or more of its characteristics set or changed in such a manner as to encode information in the signal. By way of example, and not limitation, communication media includes wired media such as a wired network or direct-wired connection, and wireless media such as acoustic, RF, infrared and other wireless media. Combinations of the any of the above should also be included within the scope of computer-readable media.
Software includes applications and algorithms. Software may be implemented in a smart phone, tablet, or personal computer, in the cloud, on a wearable device, or other computing or processing device. Software may include logs, journals, tables, games, recordings, communications, SMS messages, Web sites, charts, interactive tools, social networks, VOIP (Voice Over Internet Protocol), e-mails, and videos.
In some embodiments, some or all of the functions or process(es) described herein and performed by a computer program that is formed from computer readable program code and that is embodied in a computer readable medium. The phrase “computer readable program code” includes any type of computer code, including source code, object code, executable code, firmware, software, etc. The phrase “computer readable medium” includes any type of medium capable of being accessed by a computer, such as read only memory (ROM), random access memory (RAM), a hard disk drive, a compact disc (CD), a digital video disc (DVD), or any other type of memory.
All publications and patent applications mentioned in this specification are herein incorporated by reference to the same extent as if each individual publication or patent application was specifically and individually indicated to be incorporated by reference.
While the invention has been described in connection with various embodiments, it will be understood that the invention is capable of further modifications. This application is intended to cover any variations, uses or adaptations of the invention following, in general, the principles of the invention, and including such departures from the present disclosure as, within the known and customary practice within the art to which the invention pertains.
The present application claims priority from U.S. provisional application Ser. No. 62/462,088, filed on Feb. 22, 2017, herein incorporated by reference in its entirety.
Number | Name | Date | Kind |
---|---|---|---|
4790904 | Yates | Dec 1988 | A |
5063949 | Yaes | Nov 1991 | A |
5139039 | Yates | Aug 1992 | A |
5194095 | Yates | Mar 1993 | A |
5421883 | Bowden | Jun 1995 | A |
5707457 | Yates | Jan 1998 | A |
5782252 | Lewis | Jul 1998 | A |
5829459 | Milocco | Nov 1998 | A |
6328814 | Fishkin et al. | Dec 2001 | B1 |
6702895 | Lazaro | Mar 2004 | B1 |
Number | Date | Country |
---|---|---|
2524909 | Oct 1983 | FR |
Entry |
---|
English Machine Translation of FR 2524909 A1. |
www.sterlingsystems.com. |
www.tscherwitschke.com. |
Number | Date | Country | |
---|---|---|---|
20180236509 A1 | Aug 2018 | US |
Number | Date | Country | |
---|---|---|---|
62462088 | Feb 2017 | US |