CN201264329Y

CN201264329Y - Plastic mold with insert and undercut

Info

Publication number: CN201264329Y
Application number: CNU200820218048XU
Authority: CN
Inventors: 于文策
Original assignee: DALIAN LUANYI PRECISION MOULD MANUFACTURING Co Ltd
Current assignee: DALIAN LUANYI PRECISION MOULD MANUFACTURING Co Ltd
Priority date: 2008-09-12
Filing date: 2008-09-12
Publication date: 2009-07-01
Anticipated expiration: 2018-09-12

Abstract

The utility model relates to a plastic mold with inserts and a reversing button, which belongs to the field of the thermoplastic plastics forming mold, and is characterized in that a mold bracket of the mold comprises a fixed mold seat plate, a movable mold seat plate, a push plate, a square iron unit, an upper needle plate, a lower needle plate, an upper bottom needle plate and a lower bottom needle plate. The internal structure of the mold comprises a fixed mold core, a fixed mold inserting block, an inclined wedge, a sliding block, a movable mold inserting block, a movable mold core sleeve, a shouldered tap bolt, an allotype angle mandrill, and the like. The matching push-out between the allotype angle mandrill and the sliding block substitutes an inclined pushing mechanism, and the sliding block is connected with a second slicing block mold core by thread, and a first sliding block mold core is connected with a hanging platform of the second sliding block mold core; the allotype angle mandrill is contacted with the surface of the sliding block to perform the push-out, and the movable mold core sleeve is connected with a hanging platform of the movable mold inserting block, and the push plate is used for limitation, and the shouldered tap bolt is fixed with the push plate by thread, and a spring is arranged inside the shouldered tap bolt. The plastic mold has the advantages that the reversing button and the mold removal can be successfully completed through the movement of the allotype angle mandrill and the sliding block in two directions, thereby simplifying the structure of the mold and improving the production efficiency.

Description

The mould of plastics of band inserts and back-off

Technical field

The utility model belongs to the thermoplastic plastics shaping mould applications, relates to a kind of mould of plastics with inserts and back-off, is mainly used in the mould of band inserts and back-off.

Background technology

Mould for plastics is to utilize its given shape to be shaped to have the instrument of certain profile and size goods.Mould of plastics for band inserts and back-off is to carry out injection mo(u)lding by manually slide block being shifted onto the matched moulds position again by manually inserts being put into mold cavity at present, after finishing, injection loosing core by slide block, oblique top is deviate from back-off, product also will eject simultaneously, can increase the manufacturing cost of mould and the molding cycle of increase product like this, reduce production efficiency.

Summary of the invention

The utility model wants the technical solution problem to provide a kind of mould of plastics with inserts and back-off, solves the problem that exists in the workpiece of making band inserts and back-off.

The technical solution of the utility model is:

The mould bases of this mould comprises top clamping plate, solid plate, moving platen, push pedal, square iron group, top needle plate, upper base needle plate, following needle plate, go to the bottom needle plate and Bottom clamp plate, and internal structure comprises cover half core, fixed die insert, wedge, the first slide block core, the second slide block core, slide block, moving die insert, movable model core retainer plate, shouldered tap bolt, special-shaped angle push rod, special-shaped push rod, ejector sleeve.

Special-shaped angle push rod 20 has replaced oblique top mechanism with ejecting cooperating of slide block 16, slide block 16 is threaded with the second slide block core 15, the first slide block core 14 is connected with the second slide block core, 15 hanging platforms, and the first slide block core 14 and the second slide block core 15 that slide block 16 drives in the slide block slide in orbit.

Special-shaped angle push rod 20 contacts with slide block 16 surfaces and ejects, and movable model core retainer plate 18 carries out hanging platform with moving die insert 17 and is connected, and push pedal 4 is carried out spacing, and shouldered tap bolt 19 is fixed with push pedal 4 screw threads, is placed with spring in the shouldered tap bolt 19;

During matched moulds, when the wedge action power of wedge 13 during greater than dynamic model mold insert boss active force, reset at the elastic force effect sliding block 16 of spring, special-shaped push rod 21 is enclosed within the ejector sleeve 22, ejects product with ejector sleeve 22.Wedge 13 is threaded with solid plate 2.

Matched moulds is preceding by manually putting into inserts 23, slide block 16 takes inserts 23 to shaping position during wedge 13 matched moulds, cover half core 11 is connected with fixed die insert 12 hanging platforms, cover half core 11 is accurately located inserts 23 once more, fixed die insert 12 is threaded with solid plate 2, successively eject by the plane and the inclined-plane of special-shaped angle push rod 20, reach and take off back-off and demoulding purpose with slide block 16.

The beneficial effects of the utility model are: the motion by special-shaped angle push rod and slide block both direction can go out the back-off and the demoulding smoothly, reduces the set-up time of inserts, has simplified the structure of mould, reduces cost, and has improved production efficiency.

Description of drawings

Fig. 1 is the schematic diagram of this mold mechanism.

Fig. 2 is die sinking, slide block plane and a special-shaped angle push rod planar slide position view after injection finishes.

Fig. 3 is that the slide block inclined-plane contacts with special-shaped angle push rod angle cusp, deviates from the back-off schematic diagram.

Fig. 4 is that the product schematic diagram is deviate from slide block plane and the planar slide of special-shaped angle push rod.

Fig. 5 is a structural representation of manually inserts being put into mould.

Among the figure: 1 top clamping plate; 2 solid plates; 3 moving platens; 4 push pedals; 5 square iron groups; Needle plate above 6; 7 upper base needle plates; Needle plate below 8; 9 needle plates of going to the bottom; 10 Bottom clamp plates; 11 cover half cores; 12 fixed die inserts; 13 wedges; 14 first slide block cores; 15 second slide block cores; 16 slide blocks; 17 moving die inserts; 18 movable model core retainer plates; 19 shouldered tap bolts; 20 special-shaped angle push rods; 21 special-shaped push rods; 22 ejector sleeves; 23 inserts.

The specific embodiment

Be described in detail the specific embodiment of utility model below in conjunction with technology literal and accompanying drawing.

Two feelers of inserts 23 are inserted into location (seeing schematic diagram Fig. 5) in the draw-in groove of slide block correspondence, the cover half cores 11 in the fixed die insert 12 carry out inserts 23 fine positionings, to guarantee the relative position of inserts in the chamber.So eject sports products with the plane of the plane of special-shaped angle push rod 20 and slide block 16 and can vertically divide mould back-off can be deviate from smoothly (seeing schematic diagram Fig. 3) again simultaneously along the angle depanning of slide block 16 because there is back-off to eject Shi Yingxian in the product, the chamfered portion that back-off is deviate from the special-shaped angle push rod 20 in back begins to cooperate (seeing schematic diagram Fig. 4) with the chamfered portion of slide block 16, meanwhile the central shaft of inserts 23 has carried out linear orientation with special-shaped push rod 21, has limited laterally moving of product.Circular grooves in this moment slide block 16 enter in the boss of moving die insert 17 and carry out slide block 16 location.Die sinking finishes the back by manually product being taken out, and the one-shot forming cycle finishes.

Claims

1. mould of plastics with inserts and back-off, the mould bases of this mould comprises top clamping plate (1), solid plate (2), moving platen (3), push pedal (4), square iron group (5), top needle plate (6), upper base needle plate (7), following needle plate (8), the needle plate of going to the bottom (9) and Bottom clamp plate (10); Internal structure comprises cover half core (11), fixed die insert (12), wedge (13), the first slide block core (14), the second slide block core (15), slide block (16), moving die insert (17), movable model core retainer plate (18), shouldered tap bolt (19), special-shaped angle push rod (20), special-shaped push rod (21) and ejector sleeve (22);

It is characterized in that,

Special-shaped angle push rod (20) with eject replacement oblique top mechanism cooperating of slide block (16), slide block (16) is threaded with the second slide block core (15), the first slide block core (14) is connected with second slide block core (15) hanging platform, and slide block (16) drives the interior first slide block core (14) of slide block and slides in orbit with the second slide block core (15);

Special-shaped angle push rod (20) contacts with slide block (16) surface and ejects, movable model core retainer plate (18) carries out hanging platform with moving die insert (17) and is connected, push pedal (4) is carried out spacing, and shouldered tap bolt (19) is fixed with push pedal (4) screw thread, and shouldered tap bolt is placed with spring in (19);

During matched moulds, when the wedge action power of wedge (13) during greater than dynamic model mold insert boss active force, reset at the elastic force effect sliding block (16) of spring, special-shaped push rod (21) is enclosed within the ejector sleeve (22), ejects product with ejector sleeve (22); Wedge (13) is threaded with solid plate (2);

Matched moulds is preceding by manually putting into inserts (23), slide block (16) takes inserts (23) to shaping position during wedge (13) matched moulds, cover half core (14) is connected with fixed die insert (12) hanging platform, cover half core (11) is accurately located inserts (23) once more, fixed die insert (12) is threaded with solid plate (2), successively ejects by the plane and the inclined-plane of special-shaped angle push rod (20) with slide block (16).