Wednesday, 16 January 2013

Closure molds: What is the basic process of bottle mold technology?




The difference between plastic and metal is that while the former is cheap, the latter is very expensive. Even though there are various metallic products of different shapes & sizes, they cannot replace plastics. Metals are very expensive and it is not feasible if one begins to use metallic products for all day-to-day activities. For instance, it is not easy to replace plastic PET bottles with metallic ones, since the latter cannot be repurchased on myriad occasions. Bottle mold technology has ensured that high quality PET bottles and other plastic products can be manufactured at a very cheap cost. Cheapness of cost ensures that the consumers can buy them at low prices. That is why these products have found widespread use in our daily lives.

We are encircled by closure molds items. We use them at home and at offices and even in shops and hospitals. Take for instance, the computer you are using now. Its keyboard contains keys which are churned using this technology. Or consider the containers which you carry every day to your office for your lunch. The exact shape of such containers has been rendered possible because of these techniques. In the absence of these techniques, it is impossible to lead the kind of comfortable life we are leading now.

So, how does this technology work? Without going into too many jargons, one can say that the process pretty much comprises of three steps. The first step is to melt the plastics. Plastics are solid in general but at elevated temperatures, they can be liquefied. The second step is to insert the liquefied or molten plastic into a mold. Now, here one must say that the mold is like a vessel of a specific shape. The aim to make the plastic acquire the shape of the mold! So, a bottle mold is used when the objective is to manufacture PET bottles.
The third step involves the reshaping of the molten plastic followed by cooling. Once the molten material is inserted into the closure molds, it will automatically take the shape of its container. Thereafter, the temperature is reduced drastically and the entire thing is cooled or frozen. After the freezing process is over, the final product can be safely taken out. This is the basic synopsis of how the technique works. Of course, there are other technicalities involved but they are beyond the comprehension of a layman. This primarily is a first-hand account of how the manufacturers produce mold products.

This process of bottle mold can be carried out with expedience and economy. That is to say, the producers make sure that less time is spent for the process and even the cost incurred is significantly lower. With the evolution of technology, it has now become possible to bring down the cost and the time invested in the manufacturing of plastics. 

Closure molds have also helped in development of custom-made items. So, if a particular firm requires products in a unique way, it can always make the mold in that shape. The process also ensures uniformity of all items.

Bottle cap molds: How a good supplier of cap mold can benefit you?




The mold industry and the plastic firms are dependent on each other for their mutual existence. One cannot live without the other. There are quite a few great firms and suppliers which are constantly active in the production of cap molds. So, in case you are looking for a supplier, it won’t take you much time to find one. In this internet-driven era, one is only some mouse clicks away from a seller or an organization. So, a small Google search is going to help you forge contact with dozens of manufacturers. 

However, it is very essential that you hire the services of an organization which is good and reliable. This is specifically true for firms which constantly need bottle cap molds for the production process. Most firms seek long-term relationships with any supplier. So, it is vital to check out a few things before you sign any contract or make any payment. Why place order with a mediocre supplier, if there are better organizations proffering similar services at better quality and lower rates? 

A quintessentially good supplier of cap mold enjoys some experience. There are novices in the market as well and some are quite good. But are they truly reliable? One cannot deny that there is a small element of risk attached with them. If they are young in the industry, then there is a good chance that they are still trying to find their feet and their quality & rates may not be the best. On the other hand, an experienced firm has already worked out its strategies and has settled down comfortably. If you do a small amount of research, you can immediately find out the kind of opinion the clients have towards that organization. If the Company is old and is still going strong, then it is only possible because of its goodwill and positive amount of work.

A renowned cap mold supplier is also one who makes the best use of available technology. It is a common knowledge that molding firms have to keep in race with newer technologies. If one doesn’t invest in any research work, then its progress will be checked. This will automatically inflate costs in the future and also have a detrimental reflection on the quality of products & services. Most reputed cap molds manufacturers work with a strong ethical sense and moral responsibility. They invest in heavier machines for getting better with age and to serve the society with superior products. 

If you are making a contractual relationship with an honest and diligent organization, then you can be rest assured that you shall get your supply of bottle cap molds on timely basis and at the genuine costs. In fact, organizations keep innovating with technology and once a major breakthrough is made, cost-cutting becomes very much possible. If they can manufacture at a lower cost, then they will also be able to provide you with higher discounts. 

In order to make an estimate of the reputation of any company, you are advised to read its testimonials, reviews, opinions and customer feedback on the internet.

Monday, 24 December 2012

Sino Packaging Mould is one of the best preform moulds manufacturer in molds producing industry




With continuous developing and improvement in the technological innovation, Sino Packaging Mould Co., Ltd has been one of the best professional preform moulds manufacturer in packaging molds producing industry. We offer customers the complete system for preform molds manufacture, includes hot runner system, preform molding machinery… Sino-PK has won very good reputation, and ranges in the top of preform molds manufacturer list in the packaging market, because we know what our customers need.

Preform mold design innovation:
As a Preform mold manufacturer, SINOPK has more than 20 preform product designers and mould designers, we have new mould analysis meeting once the new order confirmed. During the technical meeting, designers, project manager, sales engineer, processing engineers will discuss together the key points of the preform moulds project, and make a schedule for the Professional preform mold manufacturer. Also there is one very important thing is that designers must attend the preform mould trial, they analyze whether the mould design they made is reasonable in the real mould testing practice. In this way, SINO-PK designs ability develops very rapidly. Now we have made the preform molds cavity from 6,12,24,36,48,64,72,96,128…and we have successfully offered 144 cavities preform moulds for 2 customers from South America. Now our R&D design teams are under developing for 160 cavities of PET preform molds.

Preform mold material selection
SINO-PK, preform mold manufacturer use the optimal steel for preform mold each part, and also make different hardness treatment as per the requirements, we adopt DIN1.2311 for the mould base to make sure the mould base can stand for long time production; Stavax 136 stainless for preform mold core and cavity, tempered with HRC 50+/-2; preform mold neck screw with DIN1.2083 with HRC45 and DIN1.2344 for the mould spare parts... All the mold steel will go for strict selection and must be under inspection after material purchase.

Preform mold tooling facility and machining process:
SINO-PK always believes tooling is very essential to lead for the preform mold manufacture success. From 2010, SINOPM invested more than 20 M to purchase high quality and high precision tooling equipment, now we have 5 sets Mazak high speed lathe, 3 sets of Sodick EDM especially for preform mold manufacture. The preform mold machining process includes 3 stages for the mould core inserts, we have the rough tooling, half precision tooling and precision tooling to make sure the dimension is top precise. All the preform mold components will be strictly made as per the 2D drawing, and be controlled within the tolerance. And after finishing the machining of the each step, all the components should go for QC dept; our QC engineers will do the measurement for the dimensions to make sure if the components are qualified, then they will be passed to the mould assembling workshop.

Preform mold manufacture order management:
SINO-PK preform mold manufacturer has very mature order management system, for each customer’s preform mold project, we have a special team work for that. First, we have one sales engineer will be fully responsible for all your project, and our sales engineers are also technical and attend the training regularly, this allows us very professional when offering service for customers during the communication. And we have special project manager who will follow up the preform mold manufacture complete project from design, production, processing, QC control, mould trial, shipping… This is the key point for the preform mold manufacture success.

Preform mold mass production simulation:
One important reason that why Sino Package Mold Co. Ltd is the professional preform mold manufacturer is that before each preform mold shipping, we will make the mass production simulation, we will take around 3~5 hours for the mass production to make sure there will be no problems when the preform mold run in customer’s workshop. And only after the success of the mass production simulation, the preform moulds are allowed for the shipping.

Thanks to the above key points, Sino-PK is now the typical preform mold manufacturer in the world plastic packaging industry, we are always keep on improvement, and strive for excellence.

SINO-PK is well famous for wide mouth preform moulds production


Wide mouth preform moulds is one kind of preform moulds, it mainly stands for those preforms with diameter more than 42mm, and it is also named jar preform moulds. The wide mouth preform moulds are mainly designed for candy and foods packaging. With more than 20 years’ experience, SINO-PK is professional for wide mouth preform moulds production.

Our jar preform moulds have below features:

Multi-cavities design - For wide mouth preform moulds, we can offer the cavity from1, 4, 6, 8, 12, 16, 24…as per customers’ productivity requirement.

Advanced hot runner system - Anole hot runner valve gate system is applied for SINO-PK wide mouth preform moulds making, the heating elements are from Germany with durable heating performance, the valve gate designs are for material sealing, avoiding the plastic material leakage during injection.

Mould Component interchange - All the mould cores and cavities are self locking system. With high precise dimension control, all the same parts can be interchangeable, and if there is one cavity damaged during the production, only this cavity need to be replaced. Also we can make the neck interchange, for example, we can offer two kinds of neck screws for one set mould, and then the customer can produce the wide mouth preform moulds with two kinds of screw neck to meet his packing requirement.

Weight interchange - For wide mouth preform moulds, we can make the weight interchange around 10g, 20g, and this help customer to reduce a lot of mould production investment.

Mould machining process - For jar preform mold, the tooling is more important compared to standard preform moulds, because the diameter is bigger, the engineers must be very professional and in top mentality. The jar preform moulds core and cavity are required to go though the rough tooling, and precision tooling to make sure the dimension is of top precision. In the precise tooling stage, high speed lathe Mazak is used, and after each tooling stage, the preform moulds components must be inspected by the QC department. If the inspection is qualified, then they will be passed to next step; but if the inspection indicates there is any dimension out of the tolerance, then we need to repeat the previous step or even reprepare the steel, no any mistakes is allowed in SINO-PK’s order management.

Jar preform sample inspection:

After the mould trial, our QC dept will inspect the samples with at least 5 full shots; the main points which should be inspected are as below:
·         Wide mouth preform weight: the weight from each cavity should be at lowest variation.
·         Wide mouth preform ID and OD: the ID is for the mandrel matching and OD is for cap fitting, so these two dimensions are very important.
·         Wide mouth Preform thickness variation: the thickness must be kept within the lowest difference; otherwise the blowing will be affected
·         Wide mouth Preform Polariscope testing: this is to check if the plastic flow is balanced to make sure the preform is easy for blowing
·         Wide mouth preform surface: mainly preform will be produced in PET transparent material, so the surface appearance is very important.
·         Wide mouth preform blowing: this is the key point, so when we make the product design, the blowing feature also needs to be considered.

·         Plastic part design
·         3D mould design
·         2D mould assembly drawing
·         Mould production
·         Plastic injection molding
·         Mould installation in customer’s factory
·         Training for customers’ engineers

Sino Package Mold Co. Ltd is dedicated for the improvement for the wide mouth preform moulds and jar preform moulds. Also we can offer customers the complete line for wide mouth bottle production. Only if you offer us your idea, we can help you to realize.