CN2882973Y

CN2882973Y - Multi-layer double-station extruding injection moulding machine

Info

Publication number: CN2882973Y
Application number: CN 200520043688
Authority: CN
Inventors: 陈庐一
Original assignee: 倪美琴
Current assignee: Shanghai Fujiang Plastic Industry Group Co., Ltd.
Priority date: 2005-07-22
Filing date: 2005-07-22
Publication date: 2007-03-28
Anticipated expiration: 2015-07-22

Abstract

A multilayer duplex extrusion blow molding machine aims to improve operating efficiency and solve other technical problems. In detail, a guide track module for moving mold is arranged between the blow molding machine pedestal and a mold matching mechanism. Two mold matching mechanism are positioned on the guide track mold and are respectively arranged on both sides of the mold head. An oil cylinder set for the moving mold is connected with blow molding machine and two mold matching mechanisms. Therefore, the utility model applies to multilayer extrusion blow molding or other similar extrusion blow moldings.

Description

Multilayer is extruded double-station plastic blowing machine

Technical field:

The utility model relates to the used equipment of a kind of blowing moulding, particularly a kind of equipment that uses multilayer preform and model assembly delivery ceremony to move.

Background technology:

In industries such as food, cosmetics, chemical industry, extensively adopt the packing container of blow molding, in order to reach the unitary plastic property that is beyond one's reach, as require the special barrier or the goods of surface characteristic, or utilize and reclaim raw material as internal layer, the single raw material of comparable use reduces cost, or reduces total wall portion thickness or the like with the Thickness Distribution of excellence, on blow moulding machine, adopt the multilayer extrusion way of multiple thermoplasticity raw material, can make 2 layers of composite article to 9 layers of different plastics; At this moment, use the die head of multilayer on blow moulding machine, the body of this die head can circumferentially be laid with 2 to 9 charging apertures, and die head is useful on the structure that little centre-to-centre spacing is made up of heart-shaped groove and screw thread axle, or is used for the structure that the screw thread axle is only arranged of big centre-to-centre spacing; Supporting feeding conveying appliance often adopts screw conveyor, each conveying device is connected with each charging aperture of die head respectively, the material that enters die head is extruded from the mould mouth through co-extrusion, and enter a correspondence and be located in the clamping tool on the blow moulding machine fuselage, the assembly of thereupon blowing carries out blowing moulding to parison, clamping is opened in cooling again, and goods are finished the operation of goods from mold releasability; The man-to-man supporting mode of above-mentioned die head and clamping; its each program all need spend certain hour; finishing a circulation needs the long period, and operating efficiency is lower, and cost of manufacture is also higher; for some massive articles; its air blowing, cooling, the die sinking demoulding; matched moulds supervisor required time is longer again, thereby above-mentioned defective is also more obvious.

The utility model content:

Technical problem to be solved in the utility model is, provides a kind of improved multilayer to extrude double-station plastic blowing machine, and it can improve the operating efficiency of blow moulding machine, reduces the cost of manufacture of multi 1ayer blow molding product.

The technical scheme in the invention for solving the above technical problem is: the pedestal of blow moulding machine is provided with clamping; the die head that is provided with the clamping correspondence; has one group of charging aperture on this die head; each charging aperture is connected with conveying device respectively; be characterized in: between the pedestal of blow moulding machine and clamping, be provided with the shifting formwork guide assembly; the shifting formwork set of rails is provided with 2 clampings; and be laid in the both sides of die head respectively; between the support of blow moulding machine and 2 clampings; be connected with a mould shifting oil cylinder assembly respectively, clamping is provided with 2 pull bars and an oil cylinder.During operation, two clampings can move the extruded material that mutual alternative collects die head along the shifting formwork guide rail by setup program.

The utility model alternately collects the extruded material of die head with 2 clampings; behind the mould attal and blowing moulding of a clamping; leave die head immediately; side at die head is finished cooling; the demoulding; operation such as matched moulds again; after last clamping left die head, the clamping of opposite side moved to the die head place along guide rail, thereupon at its mould attal and blowing moulding; following the operation that previous mold mechanism is finished phase again; the utility model is exactly not stop the ground cycle operation in a manner described, and the alternately operating of two clampings shortens the non-productive work time of whole blow moulding machine; can obviously improve the operating efficiency of blow moulding machine; reduce cost of manufacture, especially the multilayer massive article of multi 1ayer blow molding product, product amounts hourly can improve; even can improve goods output and reach one times, give full play to functions of the equipments.

Description of drawings:

Fig. 1 is that the utility model multilayer is extruded double-station plastic blowing machine and vertically looked schematic diagram.

Fig. 2 be among Fig. 1 A to view.

Fig. 3 is that clamping is provided with on pedestal and vertically looks schematic diagram among Fig. 1.

Fig. 4 be among Fig. 3 B to view.

Fig. 5 be among Fig. 3 C to view.

The specific embodiment:

With reference to Fig. 1,2, multilayer is extruded double-station plastic blowing machine and is included pedestal 1, clamping 2, die head 3, conveying device 4, shifting formwork guide assembly 5, mould shifting oil cylinder assembly 6, and the overall structure of blow moulding machine is basic identical or similar with existing multilayer extrusion blow molding machine; Characteristics of the present utility model are that pedestal 1 is provided with 2 clampings, 2, two clampings 2 and can moves on blow moulding machine pedestal 1, realizes alternately collecting the extruded material of die head 3, thereby can obviously improve the operating efficiency of blow moulding machine.

Close straight-bar machines structure 2, as Fig. 2,4, shown in 5, it is a duplex pull rod list cylinder structure, structure includes mechanism's seat 21, preceding torque arm 22, exterior sheathing 23, inner formword 24, back torque arm 25, oil cylinder 26, pull bar 27 and mould closing guide rail assembly 28, wherein, back torque arm 22, be connected with 2 pull bars 27 on 25 respectively, before draw and be installed with exterior sheathing 23 on 22, one oil cylinder 26 is installed in the torque arm 25 of back, the piston rod of oil cylinder 26 is connected in inner formword 24, before, back torque arm 22,25 and inner formword 24 all be arranged on the mould closing guide rail assembly 28, during the folding mould, under oil cylinder 26 drives through the piston rod of 2 pull bars 27 and oil cylinder 26, before making, back torque arm 22,25 and inner formword 24 can do moving along mould closing guide rail assembly 28 with respect to mechanism's seat 21, corresponding mould closing guide rail assembly 28 is known technologies, this assembly includes the guide rail that is fixedly arranged on mechanism's plug 21, before being installed in, back torque arm 22,25 and one group of wheel seat of inner formword 24 bottoms, be set in the guide wheel on each wheel seat bearing pin, guide rail adopts the less roller guide of coefficient of friction usually, each guide wheel is set in and is the contact of rolling on the guide rail, under the driving of oil cylinder 26, outward, inner formword 23,24 utilize the cooperation of mould closing guide rail assembly 28, realize that it opens, mould assembling action; In the technical solution of the utility model, 2 identical clampings 2 are arranged, be arranged on the shifting formwork guide assembly 5, and divide the both sides that are listed in die head 3.

Die head 3 and conveying device 4 are known technology, and the die head 3 of multiple feed inlet connects corresponding conveying device 4 respectively, and die head 3 cloth are set in the appropriate position, middle part of blow moulding machine pedestal 1 usually, and two clampings 2 are separately positioned on the both sides of die head 3.

Shifting formwork guide assembly 5 is to adopt and mould closing guide rail assembly 28 same or analogous structures (for known technology), and it includes wheel seat 51, and guide wheel 52 and guide rail 53 are as Fig. 3,4,5;

Wheel seat 51 includes pedestal and bearing pin, pedestal have a base plate and two lugs be located at base plate of hanging down one-body molded, two lugs are established through hole, through hole is installed with bearing pin, base plate can be fixedly arranged on mechanism's seat 21 by bolt; On each mechanism's seat 21 one group of wheel seat 51 can be set, its quantity can be 4 and does not wait to 12.

Guide wheel 52 can be a cylinder with through hole, also can be a rolling bearing, and the bearing pin that guide wheel 52 can be set in each wheel seat 51 is and is slidingly matched or is the contact of rolling;

Guide rail 53; can be general guide rail or roller guide; fixedly be laid on the blow moulding machine pedestal 1; the trend of guide rail 53 and the longitudinal center of blow moulding machine are in vertical direction; distance between two guide rails 53 is slightly less than mechanism's seat 21 length of clamping 2, promptly the longitudinal center of the trend of guide rail 53 and clamping 21 in vertical direction, when clamping 2 through wheel stand 51, guide wheel 52 when moving along guide rail 53; blow moulding machine center (being die head 3 centers) can be arrived, also the blow moulding machine center can be left.

Mould shifting oil cylinder assembly 6 and clamping 2 correspondences are provided with 2 groups, include assemblies such as push-pull arm 61 and oil cylinder 62, shown in Fig. 3,4,5;

Push-pull arm 61 includes arm body and two lugs, and the arm body has a base plate, hangs down on the base plate to being provided with two lugs and being one, and two lugs are established through hole, are installed with bearing pin in the through hole, and base plate can be fixedly arranged on mechanism's seat 21 by bolt, is respectively equipped with a push-pull arm 61 on each mechanism's seat 21;

Oil cylinder 62; its cylinder body is to be installed on the pedestal 1 of blow moulding machine; the guide rail 52 of two oil cylinder center lines and shifting formwork guide assembly 5 moves towards parallel; this position of center line should be the medium position of clamping 2 mechanism's seats 21; so that oil cylinder 62 passing clampings 2 shift actions are more steady; the piston rod overhanging end of oil cylinder 62 is set in and is sliding association on the bearing pin of push-pull arm 61 and cooperates, and forms the pin joint of a transferring power.

During the blowing operation, the action of one of two mould shifting oil cylinder assemblies 6, one clamping 2 is passed to setting (corresponding die head 3) position, the die head 3 of many charging holes is clamp-oned material in the closed mould of clamping 2, carry out blowing moulding, this mould shifting oil cylinder assembly 6 moves again, leaves die head 3 and air blowing assembly, and the multi-layer product of moulding cools off at the side of die head 3, die sinking, taking-up goods, flow chart such as matched moulds again; When corresponding above-mentioned clamping 2 leaves die head 3; the clamping 2 of opposite side is under the action of another mould shifting oil cylinder 6; close to die head 3; and after last clamping 3 is offed normal fully; immediately enter setting (corresponding die head 3) position; and finish the operation procedure of above-mentioned correspondence; so circulation embodies the characteristics of double on the one platform blow moulding machine; making blow moulding machine is to be squeezed under the condition of sending material and the corresponding air blowing of air blowing assembly by die head 3 continuously; article of manufacture efficiently; if can select best control program, the product of goods can double in its unit interval, and its economic benefit is considerable.

Claims

1, a kind of multilayer is extruded double-station plastic blowing machine, and the pedestal of blow moulding machine is provided with the die head that is provided with of clamping and clamping correspondence, has one group of charging aperture on this die head, and each charging aperture is connected with conveying device respectively, it is characterized in that:

A is provided with shifting formwork guide assembly (5) between the pedestal (1) of blow moulding machine and clamping (2);

B shifting formwork guide assembly (5) is provided with 2 clampings (2), and is laid in the both sides of die head (3) respectively;

C is connected with a mould shifting oil cylinder assembly (6) respectively between the pedestal (1) and 2 clampings (2) of blow moulding machine;

D clamping (2) is provided with 2 pull bars (27) and an oil cylinder (26).

2, multilayer according to claim 1 is extruded double-station plastic blowing machine, it is characterized in that guide rail (53) trend of shifting formwork guide assembly (5) and pedestal (1) longitudinal centre line of blow moulding machine weigh straight.

3, multilayer according to claim 1 is extruded double-station plastic blowing machine, it is characterized in that: the mould shifting oil cylinder assembly

The guide rail (52) of oil cylinder (6) (62) center line and shifting formwork guide assembly (5) moves towards parallel.