CN203409981U

CN203409981U - Blowing-assisted demoulding system for bottle blanks of PP and PET bottles

Info

Publication number: CN203409981U
Application number: CN201320508692.1U
Authority: CN
Inventors: 王巍; 陈斌
Original assignee: CHENGDU LIANYU PRECISION MACHINERY Co Ltd
Current assignee: CHENGDU LIANYU PRECISION MACHINERY Co Ltd
Priority date: 2013-08-20
Filing date: 2013-08-20
Publication date: 2014-01-29
Anticipated expiration: 2023-08-20

Abstract

The utility model relates to a blowing-assisted demoulding system for bottle blanks of PP and PET bottles. The system comprises a pouring cavity (2), a die lip (3), a pouring core (5), a pouring core sleeve (4), a sliding plate (7) and a push plate (9), wherein the pouring cavity (2) is fixed in a cavity fixing plate (6), one side of the die lip (3) is matched with one side of the pouring cavity (2), the other side of the die lip (3) is matched with the pouring core sleeve (4), the pouring core (5) is fitly mounted in the pouring core sleeve (4), the sliding plate (7) and the push plate (9) are sequentially mounted on the outer wall of the pouring core sleeve (4), a blowing insert (8) is inlaid between the sliding plate (7) and the push plate (9), multiple blowing holes (11) and a transverse blowing channel (13) are formed in the push plate (9), and multiple oblique blowing channels (12) are formed on the blowing insert (8). The system provided by the utility model has the advantages that the original structure is changed little, the demoulding of the bottle blanks can be perfectly assisted, and the product yield is high.

Description

The air blowing assisted demoulding system of PP and PET bottle bottle base

Technical field

The utility model relates to the air blowing assisted demoulding system of a kind of auxiliary demoulding mechanism for blowing of noting embryo mould, particularly PP and PET bottle bottle base.

Background technology

The demoulding of PP infusion solutions preform mould product, mainly relies on lip module when die sinking ejects, to drive the reinforcing ring outwards motion together of bottle base.In this process, because the package power of product and core is when excessive, product can not drop from core sometimes completely, while causing again matched moulds, product and mould parts is damaged by pressure, produces the situation of loss and breaks in production.

In order to guarantee that bottle base completes when the demoulding smoothly; someone proposes practical mould threaded demoulding mechanism; its course of work is that plastic injection, cooling, die sinking, thread core automatic rotation from workpiece exit, ejecting mechanism ejects workpiece; because transmission mechanism exists gap; often there will be thread core motion not put in place or the excess of stroke; if thread core motion does not put in place; the moulding length of workpiece screw thread is just short; do not meet product quality requirement; thread core move distance is preferably fixing aborning, but this is difficult to again realize.

Utility model content

The purpose of this utility model is to overcome the shortcoming of prior art, provide a kind of to original structure change less, can assist well the bottle base demoulding and the high PP of finished product rate and the air blowing assisted demoulding system of PET bottle bottle base.

The purpose of this utility model is achieved through the following technical solutions: the air blowing assisted demoulding system of PP and PET bottle bottle base, it comprises notes chamber, die lip, note core, note core retainer plate, slide plate and push pedal, noting chamber is fixed in the plate of solid chamber, one side of die lip coordinates with a side of noting chamber, the opposite side of die lip coordinates with notes core retainer plate, note and inner cooperation of core retainer plate notes core is installed, note core through die lip and stretch into and note inside, chamber, on the outer wall of notes core retainer plate, slide plate and push pedal are installed successively, between slide plate and push pedal, be inlaid with air blowing mold insert, in push pedal, be provided with a plurality of gas holes and horizontal insufflation channel, each gas hole is corresponding with a horizontal insufflation channel respectively, on air blowing mold insert, be provided with a plurality of oblique insufflation channel, each oblique insufflation channel is communicated with corresponding horizontal insufflation channel, the afterbody of noting core is also provided with solid central layer, Gu central layer coordinates with the end face of noting core retainer plate and push pedal.

The axis of described notes chamber, die lip and notes core overlaps.

Described notes core retainer plate respectively and push pedal and to note between core be matched in clearance.

Described notes chamber, die lip, notes core retainer plate are a bottle embryo forming chamber with the space that notes core encloses formation.

The utlity model has following advantage: when die sinking, die lip ejects the reinforcing ring outwards motion together that drives bottle base, from gas hole, pass into gases at high pressure, through horizontal insufflation channel and oblique insufflation channel, make the reinforcing ring of bottle base further be subject to thrust simultaneously, with bottle base, move forward, make the bottle base demoulding more smooth, reduce the percent defective of product, and on push pedal and air blowing mold insert, insufflation channel is set, less to original structural change, maintenance cost is low.

Accompanying drawing explanation

Fig. 1 is the structural representation of mould in closure state;

Fig. 2 is the structural representation of mould in die opening state;

Fig. 3 is that mould is in ejecting the structural representation of state;

In figure: 1, bottle embryo forming chamber, 2, note chamber, 3, die lip, 4, note core retainer plate, 5, note core, 6, solid chamber plate, 7, slide plate, 8, air blowing mold insert, 9, push pedal, 10, solid central layer, 11, gas hole, 12, oblique insufflation channel, 13, horizontal insufflation channel.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is further described, but protection domain of the present utility model is not limited to the following stated.

As shown in Figure 1, the air blowing assisted demoulding system of PP and PET bottle bottle base, it comprises notes chamber 2, die lip 3, note core 5, note core retainer plate 4, slide plate 7 and push pedal 9, noting chamber 2 is fixed in solid chamber plate 6, one side of die lip 3 coordinates with a side of noting chamber 2, the opposite side of die lip 3 coordinates with notes core retainer plate 4, note and inner cooperation of core retainer plate 4 notes core 5 is installed, note core 5 through die lip 3 and stretch into and note 2 inside, chamber, on the outer wall of notes core retainer plate 4, slide plate 7 and push pedal 9 are installed successively, between slide plate 7 and push pedal 9, be inlaid with air blowing mold insert 8, in push pedal 9, be provided with a plurality of gas holes 11 and horizontal insufflation channel 13, each gas hole 11 is corresponding with a horizontal insufflation channel 13 respectively, on air blowing mold insert 8, be provided with a plurality of oblique insufflation channel 12, each oblique insufflation channel 12 is communicated with corresponding horizontal insufflation channel 13, the afterbody of noting core 5 is also provided with solid central layer 10, Gu central layer 10 coordinates with the end face of noting core retainer plate 4 and push pedal 9.

Noting chamber 2, die lip 3, noting core retainer plate 4 is a bottle embryo forming chamber 1 with the space of noting core 5 and enclose formation, and the axis of noting chamber 2, die lip 3 and noting core 5 overlaps, and respectively and push pedal 9 and to note between core 5 be matched in clearance, the demoulding is more prone to described notes core retainer plate 4.

As shown in Figure 2, during die sinking, note chamber 2 and depart from die lip 3 together with solid chamber plate 6, note chamber 2 and depart from bottle embryo, realize die sinking.

As shown in Figure 3, gas hole 11 passes into gases at high pressure, through horizontal insufflation channel 13 and oblique insufflation channel 12, when mould is opened, bottle embryo end face is carried out to high pressure blow-gas, can assist well the demoulding of bottle embryo, thereby stops the hidden danger of pressing mold.

Claims

The air blowing assisted demoulding system of 1.PP and PET bottle bottle base, it is characterized in that: it comprises notes chamber (2), die lip (3), note core (5), note core retainer plate (4), slide plate (7) and push pedal (9), noting chamber (2) is fixed in solid chamber plate (6), one side of die lip (3) coordinates with a side of noting chamber (2), the opposite side of die lip (3) coordinates with notes core retainer plates (4), note and inner cooperation of core retainer plate (4) notes core (5) is installed, note core (5) through die lip (3) and stretch into and note inside, chamber (2), on the outer wall of notes core retainer plates (4), slide plate (7) and push pedal (9) are installed successively, between slide plate (7) and push pedal (9), be inlaid with air blowing mold insert (8), in push pedal (9), be provided with a plurality of gas holes (11) and horizontal insufflation channel (13), each gas hole (11) is corresponding with a horizontal insufflation channel (13) respectively, on air blowing mold insert (8), be provided with a plurality of oblique insufflation channel (12), each oblique insufflation channel (12) is communicated with corresponding horizontal insufflation channel (13), the afterbody of noting core (5) is also provided with solid central layer (10), Gu central layer (10) coordinates with the end face of noting core retainer plate (4) and push pedal (9).
2. the air blowing assisted demoulding system of PP according to claim 1 and PET bottle bottle base, is characterized in that: the axis of described notes chamber (2), die lip (3) and notes cores (5) overlaps.
3. the air blowing assisted demoulding system of PP according to claim 1 and PET bottle bottle base, is characterized in that: described notes core retainer plate (4) respectively and push pedal (9) and to note between cores (5) be matched in clearance.
4. the air blowing assisted demoulding system of PP according to claim 1 and PET bottle bottle base, is characterized in that: described notes chamber (2), die lip (3), notes core retainer plates (4) are a bottle embryo forming chamber (1) with the space that notes cores (5) enclose formation.