CN205767052U - The heating unit of blow moulding machine - Google Patents

Abstract

The utility model discloses the heating unit of a kind of blow moulding machine, it includes upper bolster and die shoe, U-tube all it is respectively arranged with in described upper bolster and die shoe, in described U-tube, inner tube is set, described U-tube uses copper pipeline, said inner tube is also adopted by copper pipeline, and described U-tube is all circular with the cross section of said inner tube, arranges heater in said inner tube.This utility model can carry out temperature control by heater, owing to heater is positioned at inside U-tube, improves intensification efficiency, and otherwise effect will not be produced interference or impact.

Description

The heating unit of blow moulding machine

Technical field

This utility model relates to blow moulding machine technical field, is specifically related to the heating unit of a kind of blow moulding machine.

Background technology

Commercially available have a kind of blow moulding machine, after granular plastic heating is mainly become molten by it, then makes molten Plastics substantially form the stock of hollow tubular, outside stock, cover mould, and inflate in stock, cause stock by gas Body pressure compress and towards the die cavity inwall modification of mould, the die cavity same shape with mould that just can obtain after stock cools down Goods.

No matter described blow moulding machine is intended to which kind of plastic processing is become goods, and the processing temperature of mould all can affect system The quality of product with make yield, as a example by granular polylactic acid plastic, the temperature of its mould to be made is maintained at 80^。C- 130^。Between C, the goods so made with polylactic acid plastic just can have good physical property and can have higher system Become yield.But the general blow moulding machine die holder that is used for providing mould to combine does not has to adjust a design of temperature, thus At the beginning during operation, the temperature of mould is less than 80^。C, the quality causing goods is the best, and along with the activity duration extends, mould is inhaled Receiving the heat of molten polylactic acid and heat up, the temperature causing mould may be between 80^。C-130^。C, but activity duration continuation extends After, the temperature of mould may will raise and more than 130^。C, the cooling effect that so will result in mould is the best, thus goods can Final goods can be caused to there may be the problem that deflection is excessive in the state bottom knockout shaped the most completely.Although it addition, There is a kind of traditional mould itself to be i.e. designed with heating and the device of cooling or pipeline, but mould itself is designed with and goods phase The die cavity of similar shape, therefore must avoid die cavity, the most directly arrange when the heating on mould and chiller or circuit design Heating and chiller on mould are difficult to so that mould bulk temperature is uniform, and each different mould is required for arranging Heating and chiller or pipeline, the cost of its mould is the highest.

Utility model content

This utility model overcomes the deficiencies in the prior art, it is provided that conveniently carry out the heating of temperature controlled blow moulding machine Unit.

In view of the problems referred to above of prior art, according to an aspect of the present utility model, ask for solving above-mentioned technology Topic, this utility model by the following technical solutions:

The heating unit of a kind of blow moulding machine, it includes upper bolster and die shoe, in described upper bolster and die shoe all Being respectively arranged with U-tube, arrange inner tube in described U-tube, described U-tube uses copper pipeline, and said inner tube is also adopted by copper Pipeline, described U-tube is all circular with the cross section of said inner tube, arranges heater in said inner tube.

In order to this utility model is better achieved, further technical scheme is:

According to an embodiment of the present utility model, said inner tube is positioned at the middle part of described U-tube.

This utility model it may also is that

According to another embodiment of the present utility model, described heater uses electrical heating wire.

Compared with prior art, one of the beneficial effects of the utility model are:

The heating unit of blow moulding machine of the present utility model, can be passed through coolant in U-tube, with facilitate carry out cold But；In the case of heating up at needs, temperature control can be carried out by heater again, owing to heater is positioned at U-tube Portion, improves intensification efficiency, and otherwise effect will not be produced interference or impact.

Accompanying drawing explanation

For clearer explanation present specification embodiment or technical scheme of the prior art, below will be to embodiment Or the required accompanying drawing used is briefly described in the description of prior art, it should be apparent that, the accompanying drawing in describing below is only It is to the reference of some embodiments in present specification, for those skilled in the art, is not paying creative work In the case of, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.

Fig. 1 is the heating unit structure schematic diagram of the blow moulding machine according to one embodiment of this utility model.

Fig. 2 is the heating unit internal structure schematic diagram according to one embodiment of this utility model.

Wherein, entitled corresponding to the reference in accompanying drawing:

1-upper bolster, 2-die shoe, 3-U shape pipe, 4-inner tube, 5-heater.

Detailed description of the invention

Below in conjunction with embodiment, this utility model is described in further detail, but embodiment of the present utility model is not It is limited to this.

As shown in Figure 1 and Figure 2, Fig. 1 is the heating unit structure of the blow moulding machine according to one embodiment of this utility model Schematic diagram, Fig. 2 is the heating unit internal structure schematic diagram according to one embodiment of this utility model, a kind of blow moulding machine Heating unit, it includes upper bolster 1 and die shoe 2, is all respectively arranged with U-tube 3 in described upper bolster 1 and die shoe 2, described Arranging inner tube 4 in U-tube 3, described U-tube 3 uses copper pipeline, said inner tube 4 to be also adopted by copper pipeline, described U-tube 3 with The cross section of said inner tube 4 is all circular, arranges heater 5 in said inner tube 4.

Said inner tube 4 is positioned at the middle part of described U-tube 3.

Described heater 5 uses electrical heating wire.

The heating unit of blow moulding machine of the present utility model, can be passed through coolant in U-tube 3, with facilitate carry out cold But；In the case of heating up at needs, temperature control can be carried out, owing to heater 5 is positioned at U-tube 3 by heater 5 again Inside, improves intensification efficiency, and otherwise effect will not be produced interference or impact.

In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is and other The difference of embodiment, identical similar portion cross-reference between each embodiment.

This utility model is described by multiple explanatory embodiment the most of the present utility model, but, It should be understood that those skilled in the art can be designed that a lot of other amendments and embodiment, these amendment and embodiments To fall within spirit disclosed in the present application and spirit.

Claims (1)

1. the heating unit of a blow moulding machine, it is characterised in that it includes upper bolster (1) and die shoe (2), described upper mold All it is respectively arranged with U-tube (3) in seat (1) and die shoe (2), inner tube (4), described U-tube (3) are set in described U-tube (3) Using copper pipeline, said inner tube (4) to be also adopted by copper pipeline, described U-tube (3) with the cross section of said inner tube (4) is all Circle, arranges heater (5) in said inner tube (4)；Said inner tube (4) is positioned at the middle part of described U-tube (3), described in add Thermal (5) uses electrical heating wire.