CN2109931U - Centrifugal casting plastic products make-up machine - Google Patents

Abstract

The utility model relates to a centrifugal pouting plastic products forming machine, which is composed of an automatic control operation table, a forming device which is composed of an upper die, a lower die, etc., a machine frame which is composed of a vertical post, an upper supporting arm and a chassis and a rotating mechanism which is composed of a cylinder, an automatic pressure and lifting supporting device, a motor, a speed variator, an upper rotating shaft and a lower rotating shaft. The utility model has the functions of automatic stopping, automatic positioning, automatic die balance, automatic pressure and supporting, automatic die-disconnecting, automatic forming, etc., and is suitable for the forming production of centrifugal pouring type plastic products, in particular to the production of non-inflation tyres for bicycles.

Description

Centrifugal casting plastic products make-up machine

The utility model belongs to plastic product forming equipment, is specially adapted to produce the polyurethane airless tire.

Since this century the forties, most vehicle is changed into the reason of inflating rubber tire by the solid shape wheel of rubber or other material, be in order to try to achieve comparatively speaking in light weight under the scientific and technological at that time condition, cost is low, ride sense advantage such as comfortable, yet regular the collapsing brokenly of following its intrinsic weakness that must inflate and occurring, prick and leak, phenomenon such as let out slowly, but brought the inconvenience that becomes increasingly conspicuous with worried to people, in some special field, wheel Wheel-chair as the disabled person, the rickshaw that the building site is used, military with car etc., facts have proved, preferably use airless tire, therefore, both at home and abroad all can remove the new way of the sorrow of tire patching again from exploring a kind of advantage that can keep air tyre in recent years always.

A kind of and rubber phase ratio have higher tensile strength, tearing strength, wear away little, shock-absorbing, anti-aging, high load capacity, the people that appear as of the microporous polyurethane elasticity new material of a series of high-quality performances such as in light weight fulfil one's long cherished wish that provide may.

The CN87108061.3 patent once provided a kind of and had made bicycle airless tire shaping machine with polyurethane material, and this structure exists following shortcoming:

This equipment is to utilize folder formula opening-closing device to come compaction mold, thereby device must carry out repeatedly adjustment to the mould of different-thickness, clamps the inhomogeneous and blowdown of force unbalance otherwise can cause.

This equipment does not have the pressue device of compressing, and the expansion that historical facts or anecdotes produces when executing raw material reaction in the production often struts mould and causes blowdown, can not guarantee product quality.

This equipment mold releasability adopts and manually removes mould, and labour intensity is big.Automaticity and production efficiency are lower.

The purpose of this utility model is to design and manufacture a kind of automatic assembly line needs centrifugal rotational speed that can adapt to control conveniently, mould thrust autobalance has automatic pressurization, support function and automatic demoulding functions, improve the quality of products and productivity effect the novel plastic goods equipment that reduces labor intensity.

Its technical scheme is: the plastic products by centrifugal casting make-up machine is made up of shaped device, frame, elevating mechanism, centrifugal rotating mechanism, automatic operating console etc.; Shaped device is by the sprue gate, center and the passage (4) of rotating shaft (3), circular upper and lower clamping dish (7), (13), circular upper and lower mould (8), (11), the mould heart (9), compositions such as automatic demoulding mechanism; Upper and lower clamping dish (7), (13) by immerse oneself in fastener respectively with upper and lower rotating shaft connector (6), (14) and upper and lower mould (8), (11) connect.

Frame is by chassis (28), column (23), and upper support arm (1) is formed, and affixed with chassis (28) below two or three root posts (23), chassis (28) tighten up on the ground with fot screw, and column (23) upper end is rigidly connected with upper support arm (1).

Elevating mechanism, by the cylinder (27) that is installed on the frame central chassis, the liftable supporter that pressurizes automatically can be in column, the lower support arm (19) of upper and lower slip forms;

Centrifugal rotating mechanism: by the motor that is fixed on upper support arm (1) (10), the belt pulley of different-diameter (5), the speed change gear that belt (or sprocket wheel, chain) is constituted, and upper and lower rotating shaft is formed.

One concavo-convex bayonet socket (31) is arranged between upper and lower mould, fuse behind the matched moulds, the mold rotation drives bed die and rotates together; The mould heart (9) is placed in bed die (11) groove; the mould heart (9) has the seam road all around; allow potting syrup flow in the die cavity (30); automatic demoulding mechanism is by demoulding strut (12); annulus (15) and push rod (17); movable bearing support (18) is formed; demoulding strut (12) passes bed die and lower clamp formwork dish from the die cavity of mold; be placed in during the demoulding on the annulus (15); (15) supported by push rod (17); (17) vallecular cavity that passes lower support arm (19) is placed on the movable bearing support (18), and (18) are sleeved on the column, are supported by a step.

Automatically liftable supporter pressurizes, be installed between lower support arm (19) middle (center) bearing seated (2) and the cylinder (27),, pull out knee (22) by pulling out knee frame (24), decide strut (21), scalable strut (20), pressurization support chassis (26), and upper supporting ring (25) is formed, (20), (21), (26), (25) four connect with hinge between the parts in addition; Following centre at upper supporting ring (25) connects firmly a hollow circuit cylinder, and a thrust block (29) is arranged in the post, pulls out knee (22) and is hinged in the hollow circuit cylinder lower end, and pass the sliding eye that pulls out knee frame (24), and (24) are installed on the cylinder block (27).

A belt pulley (5) (or sprocket wheel) of speed change gear links to each other with motor (10) rotating shaft, and another belt pulley (5) (or sprocket wheel) is connected with last rotating shaft, and is middle with belt (or chain) transmission.

The motor start-up of centrifugal rotating mechanism stops, and rotation speed change is equipped with make-up machine starting switch and this machine identification locating information switch by the control of automatic operation platform on the upper support arm, start and locating information to the output of automatic operation platform respectively.

Fig. 1 is the structural representation of plastic products by centrifugal casting make-up machine;

Fig. 2 is a structural representation behind the upper and lower mould matched moulds.

Embodiment: plastic products by centrifugal casting make-up machine and upper and lower mould structure schematic diagram, see Fig. 1 and Fig. 2.Among the figure: (1) upper support arm, the bearing seated in (2) supporting arm, (3) go up turning cylinder, (4) sprue gate and passage, (5) belt pulley (or sprocket wheel), (6) go up the turning cylinder connector, (7) upper clamp formwork disk, (8) mold, (9) mould heart, (10) motor, (11) bed die, (12) demoulding strut, (13) lower clamp formwork disk, (14) lower rotary shaft connector, (15) annulus, (16) lower support arm vallecular cavity, (17) push rod, (18) movable bearing support, (19) lower support arm, (20) scalable strut, (21) decide strut, and (22) pull out knee, (23) column, (24) pull out the knee frame, (25) upper supporting ring (26) lower support chassis, (27) cylinder, (28) chassis, (29) thrust block, (30) product die cavity is on (31), the bed die bayonet socket.

When the needs matched moulds, cylinder pulling force push rod rises to the thrust block place, driving automatically, the low bracing or strutting arrangement of pressurization lifting rises with following bearing arm, when last, after the concavo-convex bayonet socket of bed die matches, on, the bed die matched moulds forms complete die cavity, on this moment, bed die and last, following turning cylinder fuses, the cast plastic liquid from the sprue gate and passage inject, arrive the bed die upper surface and get rid of dish, actuating motor, this moment, whirligig drove the shaped device rotation, feed liquid enters the moulding of die cavity foamed solidification from mould heart seam road, after staying for some time under centrifugal action, the cylinder decompression, pulling force push rod withdrawal, mould separating up and down, the lower support arm descends, after dropping to demoulding strut and touching annulus, shaped article is ejected automatically by demoulding strut from lower mode cavity.

Enforcement of the present utility model has good effect, and its advantage is: the utility model adopts pressurization liftable supporter automatically, parallel rising, decline, pressurization all around evenly can guarantee product quality, can not overcome the uneven blowdown phenomenon of opening-closing device briquetting pressure because of foaming and intumescing struts the mould blowdown; The control of the utility model make-up machine centrifugal rotational speed is convenient, and mould thrust autobalance has automatic pressurization support function and automatic demoulding, and improve production efficiency and product quality reduces labor intensity.

Enforcement of the present utility model has been used for the polyurethane airless tire and has produced transfer matic, successfully realizes bicycle airless tire automatic batch production.Its constant product quality, good springiness, comfortable, wear-resisting, anti-aging, the life-span is three times of rubber filling gas tyre, and has fundamentally eliminated the sorrow of inflating and tire-patching.

Enforcement of the present utility model is for the update of domestic wide bicycle field tire provides practicable production equipment.

Enforcement of the present utility model also can be used for the suitability for industrialized production of other plastic products by centrifugal casting.

Claims (3)

1, a kind of plastic products by centrifugal casting make-up machine, this machine be by shaped device, frame, and elevating mechanism, centrifugal rotating mechanism, composition such as control operation platform automatically, feature of the present utility model is:

(a) shaped device is by the sprue gate, center and the passage (4) of rotating shaft (3), circular upper and lower clamping dish (7), (13), circular upper and lower mould (8), (11), the mould heart (9), compositions such as automatic demoulding mechanism; Upper and lower clamping dish (7), (13) by immerse oneself in fastener respectively with upper and lower rotating shaft connector (6), (14) and upper and lower mould (8), (11) connect;

(b) frame is by chassis (28), column (23), and upper support arm (1) is formed, and affixed with chassis (28) below two or three root posts (23), chassis (28) tighten up on the ground with fot screw, and column (23) upper end tightens up with upper support arm (1) and is connected;

(c) elevating mechanism, by the cylinder (27) that is installed on the frame central chassis, the liftable supporter that pressurizes automatically can be in column, the lower support arm (19) of upper and lower slip forms;

(D) centrifugal rotating mechanism: by the motor that is fixed on upper support arm (1) (10), the belt pulley of two different-diameters (5), the speed change gear that belt (or sprocket wheel, chain) is constituted, and upper and lower rotating shaft is formed.

2, plastic products by centrifugal casting make-up machine according to claim 1 is characterized in that: a concavo-convex bayonet socket (31) (e) is arranged between upper and lower mould, fuse behind the matched moulds, the mold rotation drives bed die and rotates together; The mould heart (9) is placed in bed die (11) groove; the mould heart (9) has the seam road all around; allow potting syrup flow in the die cavity (30); automatic demoulding mechanism is by demoulding strut (12); annulus (15) and push rod (17); movable bearing support (18) is formed; demoulding strut (12) passes bed die and lower clamp formwork dish from the die cavity of mold; be placed in during the demoulding on the annulus (15); (15) supported by push rod (17); (17) vallecular cavity (16) that passes the lower support arm is placed on the movable bearing support (18), and (18) are sleeved on the column, are supported by a step.

(f) liftable supporter that pressurizes automatically, be installed between lower support arm (19) middle (center) bearing seated (2) and the cylinder (27),, pull out knee (22) by pulling out knee frame (24), decide strut (21), scalable strut (20), pressurization support chassis (26), and upper supporting ring (25) is formed, (20), (21), (26), (25) four connect with hinge between the parts in addition; Locate to connect firmly a hollow circuit cylinder in the lower surface of upper supporting ring (25), a thrust block (29) is arranged in the post, pull out knee (22) and be hinged in the hollow circuit cylinder lower end, and pass the sliding eye that pulls out knee frame (24), (24) are installed on the cylinder block (27).

(g) speed change gear belt pulley (5) (or sprocket wheel) links to each other with motor (10) rotating shaft, and another belt pulley (5) (or sprocket wheel) is connected with last rotating shaft, and is middle with belt (or chain) transmission.

3, according to the plastic products by centrifugal casting make-up machine of claim 1 or 2, it is characterized in that: the motor start-up of centrifugal rotating mechanism, stop, rotation speed change controlled by the automatic operation platform, make-up machine starting switch and this machine identification locating information switch is installed on the upper support arm, starts and locating information to the input of automatic operation platform respectively.

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