CN201320824Y

CN201320824Y - Forming die assembly of thin shell products

Info

Publication number: CN201320824Y
Application number: CNU2008201827079U
Authority: CN
Inventors: 郑光能
Original assignee: Zhongshan Longcheng Daily Products Co Ltd
Current assignee: Zhongshan Longcheng Daily Products Co Ltd
Priority date: 2008-12-23
Filing date: 2008-12-23
Publication date: 2009-10-07
Anticipated expiration: 2018-12-23

Abstract

The utility model relates to a forming die assembly of thin shell products, which comprises a male die and a female die, after the female die is buckled with the male die into a whole, a plurality of die nests are formed, then plastic pouring forming is carried out, the female die is further pressed, and plastic which is in a melting state in the die nests is squeezed, and the function of compressing the plastic is generated, thereby reducing the stress of plastic and is easy to form to obtain integral formed thin shell products.

Description

The mould of shell goods

Technical field

The utility model relates to a kind of mould, particularly relates to a kind of mould of shell goods.

Background technology

According to traditional plastic injection-moulded production method, in the injection moulding process of shell article, often be difficult to grasp the flow density of plastics, therefore still have certain thickness via injection molding shell goods.In actual application, because the pre-allowance of die cavity volume of shell moulding die cavity is too small, when carrying out plastic pouring, plastics can't flow in die cavity smoothly.Like this, in case after plastics cool off rapidly, will there be situation imperfect or that unbalanced stress is even in the shell goods of moulding.Therefore, from the strict sense, injection molding plastic products can not be called the shell goods.The conventional method that addresses the above problem is the pre-allowance that increases the die cavity volume, but produced like this shell goods are restricted on thickness, and can't realize the effect of the whole shellization of goods.

The utility model content

The technical problems to be solved in the utility model provides a kind of mould of shell goods, uses the manufacturing process of these mould manufacturing shell plastic products simple, and made shell plastic products stress is little, thin and thick is even, and moulding easily.

For solving the problems of the technologies described above, the utility model provides a kind of mould of shell goods, and a kind of mould that is used for the shell goods comprises: master mold, and it comprises as described below in proper order successively: medial surface is provided with the collapsible form of several guide pillars with stretching out; Be socketed on the guide pillar and can be fixed on the collapsible form every mould; The next-door neighbour is every the template that presses solidly of mould, and this presses solidly template and is socketed on the guide pillar, and is fixed on the collapsible form by being threaded with the solid assembly of spiral shell; Male model, its as described below order comprise successively: medial surface is provided with fixed form, the suit of several guide rods with stretching out and is fixed in pattern on the fixed form.

Admit when being used for the force male model and the master mold of guide pillar to be merged into the hole of a die cavity being provided with on the male model at matched moulds; Be provided with the locating shaft insertion locating hole wherein that is used for being positioned on the male model on the master mold.

Be provided with a plurality of containing holes every mould, but this containing hole is used to hold the described elastic parts that presses solidly template, makes it and keep every mould suitable spacing (h) of pushing tow; Elastic parts can further be compressed, and presses solidly template and the spacing between mould (h) with elimination.

Pattern and press solidly template and be embedded with a plurality of male models cover and master mold cover respectively, and put to be provided with to be used to make at each master mold and be arranged at the nib that the corresponding die on mould therefrom passes; Die can slippage forward in nib, thereby the master mold that carries out matched moulds is bestowed the pressing action again.

According to a kind of preferred implementation of the present utility model, the central authorities of collapsible form offer cast gate, and every mould and press solidly template and originally do not offering running channel with respect to the cast gate place, at collapsible form medial surface appropriate location, other is provided with a plurality of screws.

According to another preferred implementation of the present utility model, the medial surface that presses solidly template is provided with the runner of the depression of many depth as shallow, to be communicated with running channel and master mold cover.

According to another kind of preferred implementation of the present utility model, on the medial surface of pattern,, be provided with the runner of the depression of many depth as shallow, to be communicated with each male model cover in runner position with respect to the medial surface that presses solidly template.

When master mold and male model lump together, press solidly the tight closing of template on pattern, make the master mold cover merge into a die cavity with the male model cover, again die cavity is carried out plastic pouring immediately, and then collapsible form further exerted pressure, make every mould to pressing solidly the template pressing, brute spring compression simultaneously, cause and press solidly template and the elimination of the spacing between mould, the plastics that the while die will be the melting state push to die cavity, molten plastic is compressed, and can reduce plastics stress like this and can make the easy moulding of plastics, so that obtain into the shell goods of an integral body.Little, the easy moulding of plastic products stress of using the mould of shell goods of the present utility model to make, and even structure.

Description of drawings

Fig. 1 is the combination stereogram according to the shell product molding mould of a specific embodiment of the present utility model.

Fig. 2 is the exploded view according to the shell product molding mould of a specific embodiment of the present utility model.

Fig. 3 is male model combination stereogram and the master mold combination stereogram according to the shell product molding mould of a specific embodiment of the present utility model.

Fig. 4 is male model combination section and the master mold combination section according to the shell product molding mould of a specific embodiment of the present utility model.

Fig. 5 is according to the male model of the shell product molding mould of a specific embodiment of the present utility model and master mold matched moulds profile.

Fig. 6 is according to the profile after the mould cast of the shell goods of a specific embodiment of the present utility model.

Fig. 7 is according to the cutaway view under impaction state after the mould injection moulding of the shell goods of a specific embodiment of the present utility model.

Fig. 8 is the cutaway view after the mould according to the shell goods of a specific embodiment of the present utility model divides mould.

Fig. 9 is according to the male model of the mould of the shell goods of a specific embodiment of the present utility model and master mold position corresponding relation stereogram.

Figure 10 is according to the male model of the mould of the shell goods of a specific embodiment of the present utility model, master mold and plastics products position corresponding relation stereogram.

The specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is further described.

With reference to Fig. 1, mainly be to combine according to the mould of shell goods of the present utility model by male model 1 and master mold 2, wherein, male model 1 comprises fixed form 11 and pattern 12, master mold 2 comprise collapsible form 21, every mould 22 with press solidly template 23.

With reference to Fig. 2, be equipped with outwardly directed guide pillar 211 and screw 213 at the Si Jiaochu of collapsible form 21 inner surfaces of master mold 2, and offer a cast gate 212 in the centre of collapsible form 21.Can be socketed in every mould 22 on the guide pillar 211 of collapsible form 21, and be provided with the through hole 221 that guide pillar 211 is passed in position with respect to guide pillar 211 every mould 22.

With reference to Fig. 3 and Fig. 4, be inserted in every the front end of mould 22, and post and be fixed on the collapsible form 21 from guide pillar 211.In addition, every the central authorities of mould 22 cast gate 212 places corresponding to collapsible form 21, be provided with a running channel 222 with connecting, and in the place corresponding to the screw on the collapsible form 21 213, penetratingly be provided with pivot hole 223, and be provided with the containing hole 224 of a plurality of depressions between adjacent pivot hole 223, these a plurality of containing holes 224 are being arranged circlewise every the medial surface of mould 22, and are provided with a brute spring 224a in each containing hole 224.In addition, be provided with a plurality of shaft-like dies 225 at the periphery of running channel 222, and the front end of die 225 is the smooth high accuracy spill cambered surfaces in order to moulding shell article with protruding out.

Press solidly template 23 and can be socketed on the guide pillar 211 of collapsible form 21, and the next-door neighbour is every mould 22.The position corresponding to guide pillar 211 that presses solidly template 23 is provided with the trepanning 231 of perforation, and presses solidly template 23 and be inserted in the mode of the socket slidably front end by guide pillar 211.In the central authorities that press solidly template 23, corresponding to the cast gate 212 of collapsible form 21 and every running channel 222 places of mould 22, penetratingly be provided with running channel 232, and this running channel 232 from the medial surface that presses solidly template 23 up, down the direction mode of establishing with scrobicula is extended and is presented two runners 235, and in the front end of runner 235 fork and be communicated with respectively to be embedded and pressing solidly the master mold cover 234 of template 23 medial surfaces, and the central authorities of each master mold cover 234 all penetratingly are provided with nib 234a.Be noted that the quantity of runner 235 can redesign according to throughput requirements, be not limited to the embodiment shown in the utility model.When pressing solidly after template 23 is socketed on the guide pillar 211 of collapsible form 21, the die of being located on the medial surface of mould 22 225 just can both be filled in the nib 234a inside of being located at master mold cover 234 with protruding out.In addition, be respectively equipped with locating hole 236 in four positions that it is suitable that master mold overlaps 234 peripheries.When pressing solidly template 23 when being socketed on the guide pillar 211 of collapsible form 21, its screw 213 with respect to collapsible form 21, every 223 places, pivot hole of mould 22, offer counter sink 233, and can bury countersunk head screw 24 of fastening underground in each counter sink 233, wherein, the front end of countersunk head screw 24 is threaded portions 242.Countersunk head screw 24 wear counter sink 233 by pressing solidly template 23, behind the pivot hole 223 of mould 22, can be fixed in the screw 213 of collapsible form 21 by screw thread.Be socketed on the guide pillar 211 of collapsible form 21 and next-door neighbour during when pressing solidly template 23 every mould 22, be arranged at the brute spring 224a in the containing hole 224 of mould 22, owing to have strong elastic, thereby sustainable pushing tow fixed form 23, force and remain a suitable spacing h (as shown in FIG. " h ") between fixed form 23 and the barrier film 22.

With reference to Fig. 2 to Fig. 4, male model 1 is to use with master mold 2 matched moulds the time, and wherein, fixed form 11 is made of a plurality of modules, and is provided with four guide rods 111 from the appropriate location of fixed form 11 medial surfaces with stretching out.Pattern 12 can be socketed on the guide rod 111 of fixed form 11, and penetratingly is provided with guide hole 125 at pattern 12 with respect to guide pillar 111 places.Pattern 12 is inserted in and is posted by guide rod 111 in the mode of socket slidably and is fixed on the fixed form 11.On the medial surface of pattern 12, with respect to the master mold that presses solidly template 23 of master mold 2 overlap 234 ground be embedded with have high-precision in the male model cover 122 of shiny surface, and the runner 123 that is communicated with each male model cover 122, and the locating hole that presses solidly template 23 236 places with respect to master mold 2 at pattern 12 medial surfaces have protruded out locating shaft 124.When making master mold 2,, guarantee accurately aligning of master mold cover 234 and male model cover 122 with this, and have the effect of strong fix forcing the locating hole 236 that presses solidly template 23 to be inserted in the locating shaft 124 of pattern 12 with male model 1 matched moulds.In addition, at the Si Jiaochu of pattern 12, just, offer trepanning 121 with respect to guide pillar 211 places of the collapsible form 21 of master mold 2.

With reference to Fig. 5, after making master mold 2 and male model 1 matched moulds, even after in the trepanning 121 of the guide pillar of master mold 2 211 importing male models 1, what make master mold 2 presses solidly template 23 tight closings in pattern 12, force two runners 235,123 and master mold cover 234, male model cover 122 and be combined into a die cavity.At this moment, because the strength of matched moulds is suitable, and is in again under the powerful tension force effect of brute spring 224a, make every mould 22 and press solidly template 23 to keep suitable spacing h (it " h " as shown in FIG.).

Please refer to Fig. 6, pour into a mould subsequently, that is from the cast gate 212 of the collapsible form 21 of master mold 2, every the running channel 222 of mould 22 and press solidly the running channel 232 of template 23, plastic raw materials (industrial plastic, optical plastic etc.) is injected in pressurization, make the stream of plastic that is molten condition through runner 235,123, filling is expired by

master mold cover

234 and 122 in male model cover and is closed the die cavity aftershaping that forms again.

As shown in Figure 7, after casting process finishes, the master mold 2 that carries out matched moulds is bestowed the pressing action again, to force brute spring 224a to be compressive state, thereby make every mould 22 to pressing solidly template 23 closings to eliminate spacing h, make plug be located at interior die 225 slippage forward of nib 234a of master mold cover 234 simultaneously, fill up by master mold cover 234 and male model with compression once more and overlap 122 and close moulding plastics in the die cavity that forms, make plastics consolidation more.Therefore, can reduce plastics stress and moulding easily, to obtain integrated shell goods.Especially, by male model cover 122 and master mold cover 234 die cavitys that are merged into, wherein male model cover 122 and master mold cover 234 are to adopt to be embedded state, and the user can redesign according to the needs of design finished product output.

Extremely shown in Figure 10 with reference to Fig. 8, carry out matched moulds, cast, once more behind the multiple tracks forming step such as pressing, just can withdraw from master mold 2 and take out plastic product 3, at the end of plastic product 3 promptly for merging the die cavity that forms, via the shell goods 31 of moulding by casting by male model cover 122 and master mold cover 234.

More than disclosed only be preferred embodiment of the present utility model, can not limit rights protection scope of the present utility model with this certainly.Be appreciated that the equivalent variations of doing according to the utility model essence defined in the appended claims and scope, still belong to the scope that the utility model is contained.

Claims

1. mould that is used for the shell goods comprises:

Master mold (2), described master mold (2) order as described below comprise successively: medial surface is provided with the collapsible form (21) of several guide pillars (211) with stretching out; Be socketed on described guide pillar (211) go up and can be fixed on the described collapsible form (21) every mould (22); Be close to described every mould (22) press solidly template (23), this presses solidly template (23) and is socketed on the described guide pillar (211), and is fixed on by being threaded on the described collapsible form (21) with the solid assembly (24) of spiral shell;

Male model (1), described male model (1) order as described below comprise successively: medial surface is provided with fixed form (11), the suit of several guide rods (111) with stretching out and is fixed in pattern (12) on the described fixed form (11);

Wherein, admit when being used for the force described male model (1) and the described master mold (2) of described guide pillar (211) to be merged into the trepanning (121) of a die cavity being provided with on the described male model (1) at matched moulds;

Be provided with locating shaft (124) the insertion locating hole (236) wherein that is used for being positioned on the male model (1) on the described master mold (2);

Describedly be provided with a plurality of containing holes (224) every mould (22), this containing hole (224) but be used to hold pushing tow and describedly press solidly template (23), make it and the described elastic parts (224a) that keeps suitable spacing (h) every mould (22);

Described elastic parts (224a) can further be compressed, to eliminate described template (23) and the described spacing (h) between mould (22) of pressing solidly;

Described pattern (12) and the described template (230) that presses solidly are embedded with a plurality of male model covers (122) and master mold cover (234) respectively, and are provided with to be used to make on each described master mold cover (234) and are arranged at the nib (234a) that described corresponding die (225) on mould (22) therefrom passes;

Described die (225) can slippage forward in nib (234a), thereby can compress the master mold (2) that carries out matched moulds again.

2. the mould of shell goods according to claim 1, it is characterized in that, the central authorities of described collapsible form (21) offer cast gate (212), describedly locating to offer running channel (222) and (232) with respect to described cast gate (212) every mould (22) and the described template (23) that presses solidly, at described collapsible form (21) medial surface appropriate location, other is provided with a plurality of screws (213).

3. the mould of shell goods according to claim 1 and 2 is characterized in that, on the described medial surface that presses solidly template (23) with the runner (235) of the depression that is provided with many depth as shallow, to be communicated with described running channel (232) and described master mold cover (234).

4. the mould of shell goods according to claim 3, it is characterized in that, on the medial surface of described pattern (12), in position with respect to the runner (235) of the described medial surface that presses solidly template (23), be provided with the runner (123) of the depression of many depth as shallow, to be communicated with described each male model cover (122).