CN1611344A

CN1611344A - Mould clamping means for flastic bottle-blowing machine

Info

Publication number: CN1611344A
Application number: CN 200310108246
Authority: CN
Inventors: 蔡桂森
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-10-27
Filing date: 2003-10-27
Publication date: 2005-05-04
Anticipated expiration: 2023-10-27
Also published as: CN100427293C

Abstract

The present invention relates to a mould-closing mechanism of plastic bottle-blowing machine. It comprises a fixed mould plate mounted on the machine frame, said fixed mould plate is connected with movable mould plate by means of upper and lower guide rods, on the fixed mould plate a cylinder for opening and closing mould is mounted, the piston rod of said cylinder is connected with movable mould plate. Its described fixed mould plate includes symmetrical two blocks of A and B, on said two blocks of fixed mould plates respectively are mounted mould-opening and closing cylinders of A and B, the piston rods of said two mould-opening and closing cylinders are respectively connected with movable mould plates of A and B. Besides, said invention also includes the components of upright column lifting fixing plate, top-moulding upright column, bottom mould cylinder, pressure piston and others.

Description

The blower for plastic bottle clamping

Technical field

The present invention relates to blower for plastic bottle, particularly relate to the clamping of this bottle blowing machine, belong to the process equipment of plastic containers.

Background technology

At first plastic raw materials is annotated and is made the bottle pipe by injection machine, again by bottle blowing machine bottle pipe stretch blow moulding, the common adopting said method of processing such as for example various mineral water bottles, oil bottle.The structure of bottle blowing machine mainly contains frame and mould, clamping, and Stretch and Blow Mechanism, and gas transmission and control device etc. are formed., because the bottle pipe has very big bloated mould power in being blow molded into the process of container, so the pattern of clamping and reliability will directly influence the qualification rate of product and the aesthetic property of production efficiency and matched moulds seam.The one, the prior art clamping can be divided into unidirectional matched moulds and two-way matched moulds, and described unidirectional matched moulds is that a mould is installed on the fixed form, and another piece mould is installed on the collapsible form; adopt single cylinder matched moulds; whole stroke is finished by collapsible form, so the time is long, and inefficiency.Described two-way matched moulds is that two moulds are installed in respectively on two collapsible forms; two moulds are matched moulds or die sinking in opposite directions; action is very fast; but because the single cylinder matched moulds of same employing does not have fixed form again, wherein a template relies on and pushes away; another piece template relies on and draws; so poor stability, the mold clamping force deficiency has a strong impact on product percent of pass.The 2nd, the closing piston masthead of prior art is at the center of template, because template, die area are big, so have only a fulcrum, matched moulds is not steady, and periphery moves inconsistent everywhere, and the mold clamping force that is subjected to is inhomogeneous, influences the bottle blowing quality again.The 3rd, lack strong pressurized energy behind the prior art matched moulds and replenish, therefore in stretch blow, can produce bloated mould again, also reduce the qualification rate of product, and influenced the attractive in appearance of vessel surface.

Summary of the invention

The present invention is in order to overcome the defective of prior art, and providing a kind of is two-way matched moulds, and speed is fast; high efficiency has solid plate to support again, and matched moulds is steady; and template had a plurality of fulcrum locked modes, and make mould stressed evenly everywhere, also possess the blower for plastic bottle clamping of powerful pressurized energy.

The technical scheme of blower for plastic bottle clamping of the present invention is: rack-mounted fixed form; fixed form is through last; lower guide rod connects collapsible form; folding mould cylinder is installed on the fixed form; the piston rod of cylinder connects collapsible form; it is characterized in that described fixed form is the first fixed form and two of the second fixed form of symmetry; first folding mould cylinder and second folding mould cylinder are installed respectively on two fixed forms; the piston rod of first and second liang of folding mould cylinders connects first collapsible form and second collapsible form respectively; connect column lifting fixed head in the outside of collapsible form; the backform column is installed on the column lifting fixed head; inboard at fixed form connects pressuring plate; the other end of backform column contacts with pressuring plate; the bed die cylinder is installed in bottom in frame; the piston rod of bed die cylinder drives lifter plate; lifter plate is installed the lifting cross bar; the lifting cross bar drives column lifting fixed head; in first; be shaped on the pressurized cylinder chamber in the second fixed form respectively; pressurized cylinder is installed charged piston in the chamber, and charged piston contacts with pressuring plate.The technical program adopts two cylinder push-and-pull collapsible forms of two fixed forms, and not only folding line journey is short, and speed is fast, high efficiency, and also mold clamping force is big, good operation stability; Because the backform column arranged between collapsible form and fixed form, the backform column can many distributions, so matched moulds is steady, the stressed everywhere unanimity of mould improves the bottle blowing quality; And the pressurized cylinder chamber has been arranged in fixed form, and further to the clamping of collapsible form, mold clamping force is strengthened by charged piston, overcome bloated mould fully, make the qualification rate of product that reliable guarantee arranged.

Description of drawings

Fig. 1 is a blower for plastic bottle clamping structural representation of the present invention;

Fig. 2 is this blower for plastic bottle clamping schematic top plan view;

Fig. 3 is that this blower for plastic bottle clamping is overlooked enlarged drawing;

Fig. 4 is a column lifting fixed head schematic diagram;

Fig. 5 is that the fixed form master looks schematic diagram;

Fig. 6 is the fixed form cross-sectional schematic;

Fig. 7 is that the contiguous block master looks schematic diagram;

Fig. 8 is the contiguous block cross-sectional schematic.

1, first fixed form; 2, first folding mould cylinder; 3, air inlet; 4, pressurized cylinder chamber; 5, charged piston; 6, pressuring plate; 7, backform column; 8, column lifting fixed head; 9, first collapsible form; 10, top guide bar; 11, folding mould piston rod; 12, folding mould piston rod contiguous block; 13, lifting cross bar; 14, bed die cylinder; 15, fixed block at the bottom of the lifting; 16, lifter plate; 17, lower guide rod; 18, second collapsible form; 19, second fixed form; 20, second folding mould cylinder; 21, column lifting fixed head; 22, pressuring plate; 23, backform column; 24, back-moving spring; 25, mould guide rail; 26, draw-in groove; 27, chute; 28, slide the limit; 29, backform column installing hole; 29 ', 29 ", backform column perforation; 30, lifting cross bar installing hole; 31, top guide bar installing hole; 32, lower guide rod installing hole; 33, prominent ring; 34, panel; 35, contiguous block chute.

The specific embodiment

The invention discloses a kind of clamping of blower for plastic bottle; rack-mounted fixed form is arranged; critical pieces such as collapsible form and folding mould cylinder; fixed form is connected collapsible form through top guide bar 10 with lower guide rod 17; folding mould cylinder is installed on the fixed form; the piston rod of cylinder connects collapsible form; main design feature is two fixed forms; two cylinders add the spirit cylinder and drive backform column matched moulds; pressurized cylinder is arranged again; be that described fixed form is two of symmetry; be respectively first fixed form 1 and second fixed form 19; first folding mould cylinder 2 and second folding mould cylinder 20 particularly are installed respectively on two fixed forms; the piston rod 11 of first and second liang of folding mould cylinders connects first collapsible form 9 and second collapsible form 18 respectively; so collapsible form also is two; connect column lifting fixed head 8 in the collapsible form outside separately again; 21; backform column 7 is installed on the column lifting fixed head; 23; inboard at fixed form connects pressuring plate 6; 22; make backform column 7; 23 other end withstands on pressuring plate 6 when matched moulds; on 22; and the backform column perforation 29 that the backform stud sides enters pressuring plate and fixed form during die sinking "; 29 ' in; bed die cylinder 14 is installed in the bottom of frame; some prior art also has the bed die cylinder; mainly be to connect the bottom mould tool; and the piston rod of this programme bed die cylinder also will be finished and promotes fixed head 15 and lifter plate 16 at the bottom of the lifting; lifting cross bar 13 is installed in lifter plate 16; lifting cross bar 13 drives column lifting fixed head 8; 21; at column lifting fixed head 8; 21 both sides are shaped on sliding limit 28; as Fig. 3; shown in Figure 4; at collapsible form 9; 18 both sides are shaped on chute 27; as Fig. 2; shown in Figure 3; chute also can be made up of panel 34 and collapsible form, and column lifting fixed head can be gone up under the drive of lifting cross bar 13; lower slider.So column lifting fixed

head

8,21 drives the displacement of backform column behind matched moulds.Be shaped on pressurized cylinder chamber 4 respectively in first, second fixed

form

1,19, super charge mouth 3 is arranged, charged piston 5 is installed in the pressurized cylinder chamber, charged piston contacts with pressuring plate 6.Behind the matched moulds again supercharging can overcome bloated mould fully.In order to make the mold clamping force that acts on the collapsible form even,, 4 backform column installing holes 29 are arranged, as shown in Figure 4 everywhere so the

backform column

7,23 on every column lifting fixed

head

8,21 is installed 4 respectively.In order to make pressurized energy big, and steadily, pressurized cylinder chamber 4 in first, second fixed

form

1,19 and charged piston 5 are each two, as Fig. 6, shown in Figure 5.For pressuring

plate

6,22 is in time resetted, thus back-moving spring 24 is installed, as Fig. 1, Fig. 2 and shown in Figure 3.In order to make both liftables of column lifting fixed

head

8,21; favourable again folding mould piston rod 11 motions; so in column lifting fixed

head

8,21, open system contiguous block chute 35; as shown in Figure 4; and folding mould piston rod and collapsible form adopt and flexibly connect; moveable connection method is a lot; Fig. 2, shown in Figure 3 for example; contiguous block 12 can be installed in movable fixed head 9,18; be shaped on type mouth draw-in groove 26 in the contiguous block 12; as shown in Figure 8, be shaped on prominent ring 33 at folding mould piston rod 11 heads, prominent ring 33 matches with draw-in groove 26.For convenience and the loading and unloading that utilize mould are arranged, on collapsible form 9,18, be equipped with mould guide rail 25.

Claims

1; the blower for plastic bottle clamping; be mounted in the fixed form on the frame; fixed form is through last; lower guide rod connects collapsible form; folding mould cylinder is installed on the fixed form; the piston rod of cylinder connects collapsible form; it is characterized in that described fixed form is the first fixed form (1) and (19) two of the second fixed form of symmetry; first folding mould cylinder (2) and second folding mould cylinder (20) are installed respectively on two fixed forms; the piston rod of first and second liang of folding mould cylinders connects first collapsible form (9) and second collapsible form (18) respectively; connect column lifting fixed head (8 in the outside of collapsible form; 21); backform column (7 is installed on the column lifting fixed head; 23); inboard at fixed form connects pressuring plate (6; 22); backform column (7; 23) other end and pressuring plate (6; 22) contact; bed die cylinder (14) is installed in bottom in frame; the piston rod of bed die cylinder drives lifter plate (16); lifter plate is installed lifting cross bar (13); lifting cross bar (13) drives column lifting fixed head (8; 21); in first; second fixed form (1; 19) be shaped on pressurized cylinder chamber (4) in respectively; charged piston (5) is installed in the pressurized cylinder chamber, and charged piston contacts with pressuring plate (6).

2, blower for plastic bottle clamping as claimed in claim 1 is characterized in that the backform column (7,23) on the every column lifting fixed head (8,21) is respectively 4.

3, blower for plastic bottle clamping as claimed in claim 1 is characterized in that pressurized cylinder chamber (4) and the charged piston (5) in first, the second fixed form (1,19) is two.

4, blower for plastic bottle clamping as claimed in claim 1 is characterized in that pressuring plate (6,22) has back-moving spring (24).

5, blower for plastic bottle clamping as claimed in claim 1; it is characterized in that installing in the collapsible form (9,18) contiguous block (12); be shaped on type mouth draw-in groove (26) in the contiguous block (12); be shaped on prominent ring (33) at folding mould piston rod (11) head, prominent ring (33) matches with draw-in groove (26).

6, blower for plastic bottle clamping as claimed in claim 1 is characterized in that being equipped with mould guide rail (25) on the collapsible form (9,18).