This news article was originally written in Spanish. It has been automatically translated for your convenience. Reasonable efforts have been made to provide an accurate translation, however, no automated translation is perfect nor is it intended to replace a human translator. The original article in Spanish can be viewed at El formador de botellas de Illig, una gran novedad en el mercado de termoconformado

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Bottles for yogurts, juices, vegetable and isotonic drinks may be produced by the system of thermoforming

The trainer of bottles of Illig, a great novelty in the market of thermoforming

Drafting PU28/08/2008

Illig, represented by helmut roegele, presented the first trainer of bottles (Bottleformer) BF 70 retail specialist at the Interpack trade fair. An absolutely novel under actual conditions of production development.

The newly-developed BF 70 bottleformer was presented to the public for the first time. Bottles for yogurts, juices, vegetable and isotonic drinks can be produced by the system of thermoforming of effectively and cost optimised. The possibility of working with negative entries involves a substantial benefit in design and functionality in applications such as jams, product spreads and yogurt of fruit.

The machine sets a new standard in the thermoforming in relation to the design and ease of use. The BF 70 machine conceived for the dairy industry, offers users the benefits of short times of change of mould and flexible equipment for the production of bottles in different ways.

Trainer of bottles (Bottleformer) 70 BF.

The possibility of working with negative entries involves a substantial benefit in design and functionality in applications such as jams, product spreads and yogurt of fruit.

The complex system of thermoforming requires a perfect synchronization between machine and mold. This is an essential condition for a production without fissures, especially in relation to the short cycle times. Negative entries of the bottles has been a considerable challenge for designers of molds and machinery. Bottles with this type of negative input may only manufacture using lower molds with moving parts.

New process sequences guarantee absolute uniformity in the distribution of the wall thickness despite the small original area and high depth of design. When there are bottles just is the difference between those produced by the process of blow molding and thermoforming. However, when looking at the weight, it can be confirmed immediately, that the weight of the termoconformadas bottles is only half of the blown bottles.

Left: bottle blow, to the right: bottle by thermoforming.

Thermoforming:

Bottleformer BF 70 works from coil material. To facilitate advantageous production, only add a stamping with strapping station die to separate bottles of the sheet. As it is well known, the material is shaped on the basis of the coil of heated and molded in the station of moulding plastic. The blade is mechanically preestirada and it shapes using sterile compressed air. Contact heating plates heated step-by-step materials during several cycles to optimize the temperature of the thermoforming. Only heat the surface of the material that will be shaped. The souls not heated minimize contraction of the lamina in longitudinal and transverse direction. When the machine stops, heating plates are automatically removed to prevent that the material was too hot.

Using the molds suitable in combination with a preformador of drive by servomotor and control of the air of thermoforming special cycles, is even possible to shape bottles with the stability required by the market (maximum load), on the basis of lamina of 1.4 mm thick.

A benefit of the termoconformada bottle is its outer edge that makes the sealing and offers a surface of sealing flat, offering a safe bottle closure.

Bottles for thermoforming.

The BF 70 concept is based on the experience of thermoforming of vessels and machines for the dairy industry. They are innovative ideas in combination with proven technique. The machine is completely made from stainless steel (V2A) and therefore appropriate to link directly to existing machines for filling and closure of the dairies.

The mobility of the moulds and the entrance of plate area enable an orderly exit of the bottles. Usually in two rows, in transversal sense to the sense of progress of the machine. Due to the space required for the opening of the mold, the available thermoforming area can be used for up to 20 cavities, depending on the shape and diameter of the bottle.

Decoration:

Bottles can be decorated by a 'sleeve' which is coupled to the bottle from below or after the filling process. A subsequent decoration uses a label called 'roll fed' rather than 'sleeve'. It is cheaper, however, the bottles must be aligned one after another (as in a conventional labels machine) and cannot be used due to the low values of contraction (15 percent), in entalladas bottles.

After the die-cutting of bottles, is a network of waste which can be ground and recycled. The amounts of their recycling reduce material costs. The bottles are sealed with aluminum previously torqueladas rounds. Its diameter is somewhat larger than the mouth of the neck of the bottle.

The line works at a speed of 25 cycles/minute. 20 bottles per cycle is equivalent to a total of approximately 30,000 bottles/hour, similar to a conventional line of filling and sealing.

Another benefit of the termoconformada bottle is its outer edge, which facilitates the sealing and offers a surface of sealing flat, offering a safe bottle closure.