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Posts Tagged ‘plastic’

Question by Hope: Injection fillers or more drastic plastic surgery?
I am wondering whether I should try injection fillers or choose more drastic plastic surgery. I have pretty ugly nasolabials ( wrinkles around my mouth). Also, I have a lot of wrinkles around my eyes. I am 47 but people think I am older. Does anyone have some insights on this?

Best answer:

Answer by Tiya
Injection fillers are more convenient & economical,but u have to get it done regularly.
Plastic surgery is a quick fix solution but it can have some side effects too.

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Nice handling application in an plastic injection machine. More than 500 used robots available at www.eurobots.net
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Mountain Moid & Die, Inc. 127 River Bend Drive Sevierville, TN 37876 www.mtnmold.com 865-428-3611

Inspection Techniques for Print Quality on Molded Plastic

The applications presented utilized tools that are developed from image processing algorithms. In the inspection of correctly inserted print templates.it has been shown for instance that two feature detection algorithms can be applied; in this case canned in the software described as feature detection tools. If the print template is inverted in any way, whether upside down or left to right, either or both tools will return a “fail” based on the prescribed dark or bright feature size required across the tools. For print quality, two methods have been described. The first is to use a template match of a good print and compare it with other parts. This was mainly used to detect smudges, smears and poorly printed characters. Provided the degree of mismatch is adequately defined, the template match can be used fairly adequately. In this particular case study, the template match could not be tested extensively because of lack of adequate samples.The second method used algorithms for reading optical characters (OCR).The printed characters on a good plastic part, which are not standard OCR fonts, were read into an OCR tool.Through software, the tool was trained to recognize these as OCR fonts with varying degrees of acceptance. Like in the case of the template match, the OCR was not tested extensively due to lack of adequate different production samples.For example casting mould,mold making,plastic injection mold etc.

A variety of such software and hardware exist in the market today. The comparison between the different software/hardware platforms is not intended to be the subject of this paper; however a comprehensive listing can be obtained from the Automated Imaging Association.20 Plastic molding processes are widely used in the manufacturing of various engineering and consumer items. The growth of the plastics sector has seen a slight decline (-5% overall) in the U.S. since 2000 due to the increasing costs of fuel and gas, the weakening of the dollar against major currencies in the world, and more so, the movement of manufacturing to Asia (especially China). This deficit has been absorbed mainly by China, Canada and Japan. Despite this, there is still a substantial proportion of manufacturing companies in the U.S., especially in the molding industry. Thus there is still a great need for improved process and quality control. This paper presents a simple approach that utilizes commercially available hardware and software for machine vision applications to automate the inspection of molded plastics. Generally, the training required for using such systems is minimal since most software packages supplied by vision systems manufacturers are user-friendly. The inspection for quality also requires very simple tools like those that have been demonstrated such as feature count and template matching.

After the molding process is over, the part is removed from the mold cavity manually, and visually inspected for quality. Despite this, process variations could cause minor blemishes or smears on the print that are not immediately visible to the operator. Figure S shows an example of such a defect with a close-up on a print revealing a small smear on the letter “d.” Two methods can be used for this inspection.The first is to use a temporal operation such as the template match described in section 2.S.The training data is obtained from a captured image of what is perceived as a very good quality print. Subsequent images can then be captured from parts as they flow along a conveyor, and each image compared with the trained data. A problem such as a smear or a missing character may cause a mismatch in the number and position of dark pixels that are in the image. Figure 6 is an illustration of the application of this tool.

Another useful tool that would he used to inspect a print is an optical character reader (OCR). Although the prints are not true optical characters, using the software, normal non-OCR font characters can be trained to correspond to a particular print image.After an image of a good print is captured, using this software, the actual character string is typed into the OCR reader. The reader is then “trained” to interpret the image data as corresponding to character string from the keyboard entry. After several trials, an acceptance level for allowing the captured image characters as ones that match the corresponding keyboard characters is determined. If any of the characters from a subsequent part contains a large smear it would not match the trained data set. Additionally, if there is a missing character on a plastic part, the string will not match the trained one. An example of this is shown in Figure . There are two limitations with this tool however. The first is that there ought to he adequate spacing hetween the characters for it to work effectively. secondly, minor smears on the prints may not easily he detected. Such limitations have heen addressed hy the use of advanced processing algorithms such as those that utilize neural-fuzzy classifiers.

Question by Robert R: Plastic Injection Molding: two distinguished factors of commodity resin and engineer resin?
What two differences are there between commodity resin and engineer resin all the time?

Best answer:

Answer by usaisthebestest
Price and durability.

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www.controlplastics.com – Watch the assembly process of the Adiri baby bottle, and come to our site and ask us for a free quote on your next project whether plastic or metal. See all our capabilities on our website.
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Robot arm plastic injection molding

Question by Josh W: Anyone know anything about Plastic Injection Molding?
I’ve been designing a little invention that I’m trying to get made and possibly mass produced, but I don’t know the first thing about how to do so. I’d like to get at least one made so I can tweak the design until I get it just right, but where do I start? Do I need to create a computer model in order to get a mold made? How large of an investment am I looking at? Any information would be appreciated.

Best answer:

Answer by Gary H
For prototypes, you could go to a machine shop with a drawing and ask them to quote on machining it out of aluminum or brass. If you are planning on getting a patent or trademark on your invention, you should consult a patent attorney about how to protect your invention. Having an injection molding die built will be expensive (depending on the details of the design). There are a number of technologies around for rapid prototyping. This would be similar to the machine shop route but would give you an article in plastic (or epoxy or wax or ??? depending on the technology) and it should be cheaper. Either way, you will need drawings with enough detail for someone to make it. If it is not too complicated, you might be able to build a scale model (either larger or smaller) using materials from the hardware store or building supply (styrofoam insulation, PVC pipe, wood, or others).

Search on rapid prototyping and talk to some local machine shops. On the plus side, your local machine shops are probably anxious to get the work. You may be able to protect the invention by having three different machine shops each make a few different components if you do not give them the entire drawing. good luck

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Plastic injection moulding using robot seperating sprue and Lens, lights out
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Question by sonsonelgan: i want to know the capacity of plastic injection machine?
i want to make a whiteboard marker and i want to make some part of it by plastic injection machine . i want to know the cabacity of ach mold and time for it and price plz

Best answer:

Answer by wafwot
how big is it?

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Question by trout_tapout: How does soft plastic injection molds work?

Best answer:

Answer by MJ23_4life
I hope this helps:

http://pslc.ws/macrog/kidsmac/molding.htm

Know better? Leave your own answer in the comments!