CN201052652Y

CN201052652Y - Mould clamping mechanism of automatic plastic bottle blowing machine for blowing conical plastic bottle blank

Info

Publication number: CN201052652Y
Application number: CNU2007201204444U
Authority: CN
Inventors: 廖玮
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-05-28
Filing date: 2007-05-28
Publication date: 2008-04-30
Anticipated expiration: 2017-05-28

Abstract

The utility model relates to a mold matching mechanism of automatic plastic bottle blowing machine for producing external conical plastic bottle molds. The utility model comprises a hollow mold supporting base, a bottleneck cup and a mold which are fixedly arranged on the mold supporting base, a left and a right bottleneck locking rings which are fixedly arranged under the mold. A slightly downward oblique plane is arranged along the external wall of the bottleneck cup, and a first tenon and a second tenon are respectively arranged on the inner walls of the left and right bottleneck locking rings. The bottleneck cup and the mold supporting base are lifted synchronously during the process of closing the left and right bottleneck locking rings, thereby the bottom face of the bottleneck cup upwardly supports the end face of a plastic bottleneck during the mold matching process to achieving sealing function between the bottleneck cup and the bottleneck. The utility model is applicable to the manufacture of plastic bottle molds with external conical shape.

Description

Be used to blow the clamping of automatic plastic bottle blowing machine with male-tapered plastic bottle blank

Technical field

The utility model belongs to the blower for plastic bottle technical field, relates in particular to a kind of blower for plastic bottle bottleneck sealing mechanism.

Background technology

Present blower for plastic bottle generally includes a clamping; two symmetries or asymmetrical mould about being provided with according to the expection profile of plastic bottle to be processed in the clamping; and two bottleneck retaining rings about being installed with respectively below the mould; the bottle base of plastic bottle to be processed then is shelved on the bottle base supporting base; the bottle base supporting base is inserted on the hollow shaft sleeve on the carrier chain and with carrier chain and moves in orbit; during work; described plastic bottle blank need preheat and heating process; so that bottle base is even; softening fully; be suitable for blowing; then; enter and blow pulling shaping in the clamping; here; clamping generally will carry out locked mode earlier; just cooperate by between two bottleneck retaining rings about above-mentioned and the bottleneck a set of cups; the action that compresses; make to wait to blow between the plastics spout of drawing and the bottleneck a set of cups and produce sealing function; prevent to produce when machine from blowing gas leak phenomenon in bottle base; cause because of the air pressure deficiency; the moulding failure; therefore; blow in the pulling shaping technical process, sealing has just become important link to bottleneck.

Yet, sealing between existing plastic bottle blank bottleneck and the bottleneck a set of cups generally is up to move and prop up plastics spout by power drive bottleneck a set of cups to reach sealing effectiveness, and plastic bottle blank is divided into two kinds, a kind of is outer cone bottle base (as shown in Figure 3), another kind is inner cone bottle base (as shown in Figure 4), if wait to blow the plastic bottle blank that draws is the outer cone bottle base, then since retaining ring on the spacing collar internal diameter less than bottle base base body diameter, body tends to bump with the spacing collar wiping when moving on the bottle base like this, severe patient can abrade bottle base becomes waste product, and this is a defective of the prior art.

The utility model content

The technical problems to be solved in the utility model is exactly the above-mentioned defective that exists in view of prior art, and provide a kind of structure-improved that is applied in blower for plastic bottle outer cone bottleneck seal aspect, use this structure-improved, can better solve the plastic bottle blank bottleneck of male-tapered and the sealing problem between the bottleneck a set of cups.

The technical solution adopted in the utility model is as follows:

A kind of clamping that is used to blow automatic plastic bottle blowing machine with male-tapered plastic bottle blank, comprise a hollow the bottle base supporting base, be fixed in the bottleneck a set of cups on the bottle base supporting base, mould bases and be fixed on mould on the mould bases; Be fixed in the left bottleneck retaining ring and the right bottleneck retaining ring of described mould or mould bases (accompanying drawing does not show) bottom; form when described left bottleneck retaining ring and right bottleneck retaining ring are closed one match with plastic bottle neck cross section to be processed and internal diameter less than the closure circle of the external diameter of bottle base support ring to be processed outer; by this; when clamping carries out matched moulds; formed closed circle can compress plastic bottle blank support ring lower edge when left side bottleneck retaining ring and right bottleneck retaining ring were closed; thereby can limit plastic bottle blank moves up; the degree of depth of described bottleneck a set of cups is less than the height of bottle base support ring outer; wherein: be provided with an inclined-plane that slightly is downward direction around described bottleneck a set of cups outer wall; forming the needed planform in this inclined-plane does not limit; can be that cross section is leg-of-mutton surface groove; also can be that cross section is trapezoidal dovetail groove; also other forms the structure on described inclined-plane; at least one inwall is provided with first trip that is complementary with described inclined-plane in the right bottleneck retaining ring of described left bottleneck retaining ring; described trip promoted described inclined-plane and makes the bottleneck a set of cups upwards promote when the right bottleneck retaining ring of described left bottleneck retaining ring was closed; make the bottom surface of bottleneck a set of cups upwards prop up plastics spout, reach the sealing between bottleneck a set of cups and the bottleneck.

Described left bottleneck retaining ring and right bottleneck retaining ring are respectively equipped with first trip and second trip, the shape of first trip described herein or second trip is not limit, can be slightly to be inclined-plane upwards, also can be that cross section is trapezoidal trapezoidal trip, can also be cambered surface or other shape.

Described bottle base supporting base and bottleneck a set of cups are one-body molded making.

In an embodiment of the present utility model, the cross section on described inclined-plane is triangular in shape or trapezoidal.

In an embodiment of the present utility model, the cross section of described first trip and second trip is a triangle or trapezoidal.

The course of work of blower for plastic bottle male-tapered bottleneck sealing mechanism of the present utility model is as follows: when carrying out mould assembling action, left side bottleneck retaining ring and right bottleneck retaining ring are along with left template, the matched moulds of right template and closure, this correspondingly, the corresponding rising under the effect of first trip and/or second trip of inclined-plane on the bottleneck a set of cups outer wall, thereby make that the bottleneck a set of cups is promoted, make the bottom surface of bottleneck a set of cups upwards prop up plastics spout, reach the sealing function between bottleneck a set of cups and the bottleneck, in closing course, only need translation, just can realize sealing effectiveness, so there is not the situation of scratch bottle base of the prior art.

Compared with prior art, the superior technique effect that blower for plastic bottle male-tapered bottleneck sealing mechanism of the present utility model has is: in left bottleneck retaining ring and right bottleneck retaining ring closure, realize the automatic lifting of bottleneck a set of cups, produce sealing function thereby realize waiting to blow between the plastics spout of drawing and the bottleneck a set of cups, the utility model is suitable for having the processing of the plastic bottle blank of male-tapered body.

Brief Description Of Drawings:

Fig. 1 is the cutaway view that the utility model is used to blow the clamping of the automatic plastic bottle blowing machine with male-tapered plastic bottle blank;

Fig. 2 is the decomposing schematic representation of clamping among Fig. 1;

Fig. 3 is an outer cone bottle base cutaway view;

Fig. 4 is an inner cone bottle base cutaway view.

Drawing reference numeral explanation: 1-plastic bottle blank; 11-bottle base support ring; 12-bottle base base body; 13-bottle base support ring lower edge; 2-left side bottleneck retaining ring; The right bottleneck retaining ring of 20-; 22-first trip; 23-second trip; 3-bottle base supporting base; 31-bottleneck a set of cups; The 32-inclined-plane; The 4-mould.

The specific embodiment

Below in conjunction with given accompanying drawing, describe the technical solution of the utility model in detail:

As shown in Figure 1, the clamping that is used to blow the automatic plastic bottle blowing machine with male-tapered plastic bottle blank of the present utility model comprises: the bottle base supporting base 3 of a hollow, be fixed in the bottleneck a set of cups 31 on the bottle base supporting base 3, mould bases and be fixed on mould 4 on the mould bases; Be fixed in the left bottleneck retaining ring 2 and the right bottleneck retaining ring 20 of described mould 4 or mould bases bottom; described left bottleneck retaining ring 2 and right bottleneck retaining ring 20 form when closed one match with plastic bottle neck cross section to be processed and internal diameter less than the closure circle of the external diameter of bottle base support ring to be processed 11 outers; by this; when clamping carries out matched moulds; formed closed circle can compress plastic bottle blank support ring lower edge 13 when left side bottleneck retaining ring 2 and right bottleneck retaining ring 20 closures; thereby can limit plastic bottle blank moves up; the degree of depth of described bottleneck a set of cups 31 is less than the height of bottle base support ring 11 outers; it is characterized in that: be provided with an inclined-plane 32 that slightly is downward direction around described bottleneck a set of cups 31 outer walls; at least one inwall is provided with first trip 22 that is complementary with described inclined-plane 32 in described left bottleneck retaining ring 2 and the right bottleneck retaining ring 20; the described inclined-plane 32 of described trip 22 promotions makes bottleneck a set of cups 31 upwards promote when described left bottleneck retaining ring 2 and right bottleneck retaining ring 20 closures; make the bottom surface of bottleneck a set of cups 31 upwards prop up plastics spout, reach the sealing between bottleneck a set of cups 31 and the bottleneck.

The inwall of described left bottleneck retaining ring and right bottleneck retaining ring is respectively equipped with first trip 22 and second trip 23.

During making, the cross section on described inclined-plane 32 can be made triangle or trapezoidal, and the cross section of described first trip 22 and second trip 23 is a triangle or trapezoidal.Described bottle base supporting base 3 is one-body molded making with bottleneck a set of cups 31.

Blower for plastic bottle male-tapered bottleneck sealing mechanism of the present utility model is to realize sealing like this when working: when carrying out mould assembling action, left side bottleneck retaining ring 2 and right bottleneck retaining ring 20 are along with left template, the matched moulds of right template and closure, formed closed circle is compressing plastic bottle blank support ring lower edge 13 when left side bottleneck retaining ring 2 and right bottleneck retaining ring 20 closures, the restriction plastic bottle blank moves up, meanwhile, first trip 22 of left side bottleneck retaining ring 2 and right bottleneck retaining ring 20 inwalls and second trip 23 act on the inclined-plane on the bottleneck a set of cups outer wall, thereby make that bottleneck a set of cups 31 and bottle base supporting base 3 are promoted, the bottom surface of bottleneck a set of cups 31 upwards props up the bottleneck end face of plastic bottle blank 1, reach the sealing function between the bottleneck of bottleneck a set of cups 31 and plastic bottle blank 1, also avoided the grazing of left

bottleneck retaining ring

2 and 20 pairs of plastic bottle blank base bodies 12 to be processed of right bottleneck retaining ring simultaneously and cause unnecessary damage.

Claims

1. clamping that is used to blow automatic plastic bottle blowing machine with male-tapered plastic bottle blank; the bottle base supporting base (3) that comprises a hollow; be fixed in the bottleneck a set of cups (31) on the bottle base supporting base (3); mould bases and be fixed on mould (4) on the mould bases; be fixed in the left bottleneck retaining ring (2) and the right bottleneck retaining ring (20) of described mould (4) or mould bases bottom; form when described left bottleneck retaining ring (2) and right bottleneck retaining ring (20) are closed one match with plastic bottle neck cross section to be processed and internal diameter less than the closure circle of the external diameter of bottle base support ring to be processed (11) outer; by this; when clamping carries out matched moulds; formed closed circle can compress plastic bottle blank support ring lower edge (13) when left side bottleneck retaining ring (2) and right bottleneck retaining ring (20) were closed; the degree of depth of described bottleneck a set of cups (31) is less than the height of bottle base support ring (11) outer; it is characterized in that: be provided with an inclined-plane (32) that slightly is downward direction around described bottleneck a set of cups (31) outer wall; at least one inwall is provided with first trip (22) that is complementary with described inclined-plane (32) in described left bottleneck retaining ring (2) and the right bottleneck retaining ring (20); described left bottleneck retaining ring (2) and right bottleneck retaining ring (20) promote described inclined-plane (32) at first trip described in the closing course (22) makes bottleneck a set of cups (31) and bottle base supporting base (3) upwards promote; make the bottom surface of bottleneck a set of cups (31) upwards prop up the end face of plastics spout, reach the sealing between bottleneck a set of cups (31) and the bottleneck.

2. the clamping that is used to blow the automatic plastic bottle blowing machine with male-tapered plastic bottle blank as claimed in claim 1 is characterized in that: the inwall of described left bottleneck retaining ring (2) and right bottleneck retaining ring (20) is respectively equipped with first trip (22) and second trip (23).

3. the clamping that is used to blow the automatic plastic bottle blowing machine with male-tapered plastic bottle blank as claimed in claim 1 is characterized in that: described bottle base supporting base (3) is one-body molded making with bottleneck a set of cups (31).

4. the clamping that is used to blow the automatic plastic bottle blowing machine with male-tapered plastic bottle blank as claimed in claim 1 is characterized in that: the cross section of described inclined-plane (32) is triangular in shape or trapezoidal.

5. the clamping that is used to blow the automatic plastic bottle blowing machine with male-tapered plastic bottle blank as claimed in claim 2 is characterized in that: the cross section of described first trip (22) and second trip (23) is a triangle or trapezoidal.