CN107877789A

CN107877789A - Mould

Info

Publication number: CN107877789A
Application number: CN201711371620.6A
Authority: CN
Inventors: 许继东
Original assignee: Xuancheng East Branch Electric Appliance Co Ltd
Current assignee: Xuancheng East Branch Electric Appliance Co Ltd
Priority date: 2017-12-19
Filing date: 2017-12-19
Publication date: 2018-04-06

Abstract

The invention discloses a kind of mould, including first and second mold monomers corresponding to two, mould, there is forming surface in first and second mold monomers and enclose to form forming cavity after matched moulds each other, for described forming cavity at least provided with two, the die assembly after first and second mold monomers matched moulds is connected to each forming cavity provided with sprue via reversal valve.One composing type mould, first, two molds monomer matched moulds forms multiple forming cavities, each forming cavity can be directed to same type product or different model product design, also the same type product that different dimensions can be directed to designs, sprue is made according to production requirement adjustable change valve and each forming cavity is on or cut-off state, first, sprue is molded after two molds monomer matched moulds, the finally demoulding is completed to produce while multiple products, greatly reduce die manufacturing cost, the step of avoiding production different model product and needing more mold exchange, improve production efficiency simultaneously.

Description

Mould

Technical field

The invention belongs to be molded production field, more particularly to a kind of mould.

Background technology

Plastic Rubber Products produce frequently with injection molding manner, and mould is essential production component.In the prior art, For a certain type product, mould is provided with single upper and lower core and is used to manufacture production, can only after matched moulds of completion A product is produced, its production efficiency is low, and in design requirement is produced, a certain type product has sizes rule Lattice, at this moment just need to design multigroup mould for producing, also need to change core for producing different sizes in production period The product of specification, its operating process is cumbersome, greatly lavishes labor on, and work production efficiency cannot be guaranteed.

The content of the invention

It is an object of the invention to provide a kind of mould, can produce multiple products simultaneously after mold-closing injection is completed Or the same type product of different specification size, improve production efficiency.

To achieve these goals, the present invention takes following technical scheme：A kind of mould, including two correspondences of mould First and second mold monomers, enclose to form forming cavity after having forming surface and each other matched moulds in first and second mold monomers, it is described At least provided with two, the die assembly after first and second mold monomers matched moulds is connected to forming cavity provided with sprue via reversal valve Each forming cavity.

In above-mentioned technical proposal, a composing type mould, first and second mold monomers matched moulds forms multiple forming cavities, Ge Gecheng Die cavity can be directed to same type product or different model product design, can also be directed to the same type product of different dimensions Design, sprue is made according to production requirement adjustable change valve and each forming cavity is on or cut-off state, first and second mould list Sprue is molded after body matched moulds, the finally demoulding is completed to produce while multiple products, greatly reduces Making mold Cost, the step of avoiding production different model product and need more mold exchange, while improve production efficiency.

Brief description of the drawings

Fig. 1 is the first mold monomers schematic diagram of the invention；

Fig. 2 is reversal valve of the present invention and main channel, divides conduit sectional view；

Fig. 3 is that valve element of the present invention, valve seat and the first mold monomers coordinate sectional view；

Fig. 4 is the second mold monomers schematic diagram of the invention.

Embodiment

With reference to accompanying drawing, 1~4 couple of present invention makes further instructions：

A kind of mould, including first and second mold monomers 10,20 corresponding to two, mould, first and second mold monomers 10th, enclose to form forming cavity 40 after having forming surface and each other matched moulds on 20, described forming cavity 40 at least provided with two, first, Die assembly after two molds monomer 10,20 matched moulds is connected to each forming cavity 40 provided with sprue via reversal valve 30.One composition Pattern has, and first and second mold monomers 10,20 matched moulds form multiple forming cavities 40, and each forming cavity 40 can be directed to same model Product or different model product design, the same type product that can be also directed to different dimensions are designed, adjusted according to production requirement Section reversal valve 30 makes sprue and each forming cavity 40 is on or cut-off state, right after first and second mold monomers 10,20 matched moulds Sprue is molded, and the finally demoulding is completed to produce while multiple products, greatly reduces die manufacturing cost, avoids The step of producing different model product and needing more mold exchange, while improve production efficiency.

First and second described mold monomers 10,20 are respectively the cavity plate and convex surface shaping based on setting concave surface forming area Punch-pin based on region, reversal valve 30 are rotating type change valve and are arranged in the first mold monomers 10 that reversal valve 30 is provided with Flow inlet 31 connects with sprue, and reversal valve 30 is provided with least two outflow ports 32 and connected with the selection of each forming cavity 40.Cavity plate and The connotation of punch-pin refers to the features of shape of mold body, i.e. cavity plate refers to its shape of forming surface region based on concave region, It is then the evagination position of product if corresponding with product to be formed, corresponding to the forming surface of cavity plate, punch-pin is then opposite；First and second Before mold monomers 10,20 matched moulds, according to production requirement rotate adjustable change valve 30, select into and out of head piece 31,32 by sprue with Corresponding forming cavity 40 is connected, and subsequent matched moulds is molded.

Offer main channel 11 in the first described mold monomers 10, described sprue by first and second mold monomers 10, The passage that the notch that 20 matched moulds rear seal-covers live main channel 11 is formed is formed with the injecting hole 21 opened up in the second mold monomers 20.It is raw In production, first and second mold monomers 10,20 are respectively upper and lower mould, and opening up injecting hole 21 in the second mold monomers 20 is noted Modeling.

Also at least provided with two points of conduits 12, first and second mold monomers 10,20 matched moulds in the first described mold monomers 10 Rear seal-cover lives the passage composition runner for dividing that the notch of conduit 12 formed, it is described divide conduit 12 postponed with main channel 11 be connected and Connected with each forming cavity 40, reversal valve 30 is arranged in main channel 11 and divides the joining place of conduit 12, reversal valve 30 into and out of head piece 31st, 32 with main channel 11, divide conduit 12 selection connect.Provided with dividing, conduit 12 is used for main channel 11 and each forming cavity 40 realizes transition Connection, while be easy to arrange reversal valve 30, adjustable change valve 30 realizes conducting and the cut-off state for dividing conduit 12 and main channel 11.

Described reversal valve 30 includes the valve seat 33 to cooperate and valve element 34, and described valve seat 33 is at least by main channel 11 It is spaced with three of the joining place that divides conduit 12 and concentric arc section side wall is formed, the epimere of described valve element 34 opens up There is a T-slot, the periphery wall that the groove end of T-slot extends to valve element 34 is formed into and out of head piece 31,32, the end face of valve element 34 and first The flush of mold monomers 10.T-slot can be opened up as embodiment, on valve element 34 to form into and out of head piece 31,32, valve element 34 Relatively rotated with valve seat 33, it is corresponding to select into and out of head piece 31,32 and main channel 11, the conducting for dividing conduit 12 and cut-off state.

The elastic spacing unit that limitation reversal valve 30 rotates is provided between the described mold monomers 10 of reversal valve 30 and first. In order to avoid when first and second mold monomers 10,20 matched moulds are molded, the valve element 34 of reversal valve 30 rotates, cause into, Outflow port 31,32 with main channel 11, divide the conducting of conduit 12 and cut-off state to change, set elastic spacing unit to limit valve Core 34 rotates.

The first described mold monomers 10 offer positioning hole and the hypomere composition of valve element 34 is rotatably assorted, described elasticity Position-limiting unit includes the arc groove 50 opened up on the hole wall of positioning hole, and the hypomere of described valve element 34 offers blind hole, blind hole Kong Xin and valve element 34 shaft core be mutually perpendicular to, is provided with compression spring in blind hole, one end of push rod 60 is connected with compression spring, is pushed up The other end of bar 60 stretches out blind hole and the corresponding matching of arc groove 50.Rotary spool 34, push rod 60 is in the presence of torsion from arc Depart from connected in star 50, push rod 60 is bounced back in blind hole, and specific regulation selects into and out of head piece 31,32 and main channel 11, divides groove After the conducting in road 12 and cut-off state, compression spring resilience makes push rod 60 form cooperation with other arc grooves 50, limits Valve element 34 rotates.

Claims

1. a kind of mould, including first and second mold monomers (10,20) corresponding to two, mould, first and second mold monomers Enclose to form forming cavity (40) after having forming surface and each other matched moulds on (10,20), it is characterised in that：Described forming cavity (40) is extremely Two are provided with less, and the die assembly after first and second mold monomers (10,20) matched moulds is provided with sprue and connected via reversal valve (30) To each forming cavity (40).

2. mould according to claim 1, it is characterised in that：Described first and second mold monomers (10,20) are respectively To set the punch-pin based on the cavity plate and convex surface forming area based on the forming area of concave surface, reversal valve (30) is rotary commutation Valve and it is arranged in the first mold monomers (10), reversal valve (30) connects provided with flow inlet (31) with sprue, reversal valve (30) Connected provided with least two outflow ports (32) with each forming cavity (40) selection.

3. mould according to claim 2, it is characterised in that：Master is offered in described the first mold monomers (10) Conduit (11), the notch that described sprue is lived main channel (11) by first and second mold monomers (10,20) matched moulds rear seal-cover are formed Passage and the second mold monomers (20) on the injecting hole (21) that opens up form.

4. mould according to claim 3, it is characterised in that：Also at least set in described the first mold monomers (10) There are two points of conduits (12), first and second mold monomers (10,20) matched moulds rear seal-cover lives to divide the passage that the notch of conduit (12) is formed Form runner, it is described to divide conduit (12) to postpone with main channel (11) to be connected and connect with each forming cavity (40), reversal valve (30) be arranged in main channel (11) and divide the joining place of conduit (12), reversal valve (30) into and out of head piece (31,32) and main channel (11) conduit (12) selection connection, is divided.

5. mould according to claim 4, it is characterised in that：Described reversal valve (30) includes the valve to cooperate Seat (33) and valve element (34), described valve seat (33) at least by three of main channel (11) and the joining place for dividing conduit (12) each other It is spaced and concentric arc section side wall is formed, the epimere of described valve element (34) offers T-slot, and the groove end of T-slot extends to The periphery wall of valve element (34) is formed and put down into and out of head piece (31,32), the end face and the surface of the first mold monomers (10) of valve element (34) Together.

6. mould according to claim 5, it is characterised in that：Described reversal valve (30) and the first mold monomers (10) the elastic spacing unit that limitation reversal valve (30) rotates is provided between.

7. mould according to claim 6, it is characterised in that：Described the first mold monomers (10) offer positioning The hypomere of hole and valve element (34), which is formed, to be rotatably assorted, and described elastic spacing unit includes the arc opened up on the hole wall of positioning hole Groove (50), the hypomere of described valve element (34) offer blind hole, and the Kong Xin and valve element (34) of blind hole shaft core are mutually perpendicular to, blind Compression spring is provided with hole, one end of push rod (60) is connected with compression spring, and the other end of push rod (60) stretches out blind hole and arc Groove (50) corresponding matching.