CN101284415B

CN101284415B - Mould capable of realizing periodic cool and cooling method thereof

Info

Publication number: CN101284415B
Application number: CN200710027596A
Authority: CN
Inventors: 陈志煜; 王坚韧; 何克梦
Original assignee: Foxlink Electronics Dongguan Co Ltd; Cheng Uei Precision Industry Co Ltd
Current assignee: Foxlink Electronics Dongguan Co Ltd; Cheng Uei Precision Industry Co Ltd
Priority date: 2007-04-13
Filing date: 2007-04-13
Publication date: 2010-05-26
Anticipated expiration: 2027-04-13
Also published as: CN101284415A

Abstract

The invention provides a mold which can realize periodic cooling and includes an upper dead plate, a cavity plate, a cavity, a core, a core plate, space blocks, an upper ejector plate and a lower ejector plate between the space blocks, and a lower dead plate at the bottom. Cooling pipes are arranged at the positions of the cavity and the core, a mold cavity is formed between the cavity and the core, and a through hole opened at the bottom of the mold cavity passes through the core and the core plate. An accommodating chamber is formed on and passes through the upper ejector plate and the lowerejector plate, and a thimble is movably arranged in the accommodating chamber. One end of the thimble extends out of the lower ejector plate to form a colliding pole, the other end of the thimble isinserted into the through-hole and the mold cavity. A valve switch is arranged on the lower dead plate under the colliding pole, matching the cavity with the core enables the colliding pole to be contacted with the valve switch, and opening the cavity and the core enables the colliding pole to be separated from the valve switch, thereby controlling the injection of the cooling fluid or stopping the injection into the cooling pipe. The mold provided by the invention can save water resource and keep temperature equalization in the mold.

Description

The mould of property performance period cooling and cooling means thereof

Affiliated technical field

The present invention relates to a kind of mould, relate in particular to a kind of mould and cooling means thereof of property performance period cooling.

Background technology

Traditional mold cools down mode adopts the type of cooling of water-cooled mostly, this mode is by place cooling tube in the mould type body, the injection cooling water that does not stop in cooling tube is so that circulating of not stopping in cooling tube of cooling water, thus reduce mould temperature, reach the purpose of cooling die.

Yet, this type of cooling is in the whole motion process of the matched moulds of mould and die sinking, in the injection cooling tube that cooling water continues not stop always, thereby cause the waste of water resource, in addition because when matched moulds, the temperature of mould is higher, after die sinking, the temperature of mould is lower, and the cooling water in the injection cooling tube that does not stop still cools off mould after die sinking, thereby cause mould unbalanced, influenced the moulding quality at matched moulds and die sinking phase temperature.

Summary of the invention

The objective of the invention is to provide at the defective of above-mentioned prior art a kind of can the conserve water resource, and keeps the mould and the cooling means thereof of the interior temperature equalization of mould by cooling periodically.

For reaching above-mentioned purpose, the invention provides a kind of mould of property performance period cooling, comprise upper ejector plate and following liftout plate between upper mounted plate, caster, mother module core, male model benevolence, male model plate, spacer block, the spacer block, and the bottom plate of bottom.Be provided with cooling tube respectively in male model benevolence and mother module core place, have die cavity between mother module core and the male model benevolence, cavity bottom offers the through hole that runs through male model Renhe male model plate.On upper ejector plate and following liftout plate, offer the cavity volume that runs through upper ejector plate and following liftout plate, the interior activity of cavity volume be equiped with a thimble.One end of thimble stretches out liftout plate formation conflict post down, and the other end of thimble inserts in through hole and the die cavity.Be provided with the valve switch that is positioned at below the conflict post on the bottom plate, male model benevolence and the matched moulds of mother module core make conflict post and valve switch contact or male model benevolence and the die sinking of mother module core that the conflict post is separated with valve switch with the control cooling fluid to inject or stop to inject in the cooling tube.

Cooling means of the present invention comprises: utilize the active force that produces behind the mould matched moulds to act on thimble so that thimble touches valve switch and the Open valve switch, valve switch control cooling fluid is injected in the cooling tube and is begun to cool down mould; And after treating that the mould ejection formation finishes, along with the die sinking process of mould, thimble breaks away from valve switch, and cooling fluid stops to inject in the cooling tube thereby valve switch is closed control.

For reaching above-mentioned purpose, the invention provides the mould of another kind property performance period cooling, comprise upper ejector plate and following liftout plate between upper mounted plate, caster, mother module core, male model benevolence, male model plate, spacer block, the spacer block, and the bottom plate of bottom.Be provided with cooling tube respectively in male model benevolence and mother module core place, have die cavity between mother module core and the male model benevolence, cavity bottom offers the through hole that runs through male model Renhe male model plate, is fixed with thimble on the upper ejector plate.Down be fixed with the conflict post on the liftout plate, be provided with the valve switch that is positioned at below the conflict post on the bottom plate, whether upper ejector plate and moving up and down of following liftout plate make the conflict post contact with valve switch or separate to control cooling fluid and inject in the cooling tube.

As mentioned above, the cycle operation by mould matched moulds, moulding and die sinking has realized that the periodicity of cooling tube opens and closes, thereby has realized the mold cycle cooling, and mold temperature can be kept in balance, improving the formed product effect, and the conserve water resource.

Description of drawings

In Figure of description:

Fig. 1 is mould cutaway view when the matched moulds state of the present invention's property performance period cooling;

Fig. 2 is the partial enlarged drawing of II part among Fig. 1;

Fig. 3 is the partial enlarged drawing of III part among Fig. 1;

Fig. 4 is the cutaway view of mould after the mold-closing injection moulding of the present invention's property performance period cooling;

Fig. 5 is the cutaway view of mould after die sinking of the present invention's property performance period cooling;

Fig. 6 is the cutaway view after the mould of the present invention's property performance period cooling ejects the moulding product.

The description of reference numerals of each assembly is as follows among the figure:

Mould 100 upper mounted plates 10

Irritate mouth 11 male model plates 20

Male model benevolence 21 mother module cores 22

Caster 23 cooling tubes 24

Die cavity 25 spacer blocks 30

41 times liftout plates 42 of upper ejector plate

Push rod 43 bottom plates 50

Cavity volume 61 first holds hole 62

Second holds hole 63 thimbles 70

Annulus 71 springs 72

Conflict post 73 valve switch 80

Stopper 90

The specific embodiment

For describing technology contents of the present invention, structural feature, the purpose that is realized and effect in detail, give explanation below in conjunction with embodiment and conjunction with figs. are detailed.

See also Fig. 1, mould 100 of the present invention comprises the bottom plate 50 of the upper ejector plate 41 between upper mounted plate 10, caster 20, mother module core 21, male model benevolence 22, male model plate 23, both sides spacer block 30, two spacer blocks 30, following liftout plate 42 and bottom from top to bottom successively.

Please together consult Fig. 2 and Fig. 3, cooling tube 24 is arranged at the inside of mother module core 21 and male model benevolence 22 respectively, and hose nozzle is opened in the side of caster 20 and male model plate 23.And a "T"-shaped filling mouth 11 is offered at upper mounted plate 10 middle parts, and extends to the die cavity 25 between mother module core 21 and the male model benevolence 22, and irritating in the mouth 11 has a funnel-shaped passage, can make molding mass by upper mounted plate 10 outsides in it injects die cavity 25.Die cavity 25 bottoms offer the through hole that runs through male model benevolence 22 and male model plate 23 downwards successively, offer a columniform cavity volume 61 corresponding on upper ejector plate 41 and the following liftout plate 42 with through hole, the two ends of cavity volume 61 form internal diameter and the through hole internal diameter first appearance hole 62 about equally, the middle part of cavity volume 61 forms internal diameter and holds hole 63 greater than second of through hole internal diameter, thereby forms step in cavity volume 61.Be inserted with a thimble 70 in this through hole, thimble 70 insert through holes an end the outstanding through hole in top a little to insert in the die cavity 25; The other end of thimble 70 has diameter and second and holds the internal diameter annulus 71 about equally in hole 63, annulus 71 places second to hold in the hole 63, this end of thimble 70 is arranged with one and places second to hold in the hole 63 and be connected to spring 72 on annulus 71 and the following liftout plate 42, and this end of thimble 70 stretches out down liftout plate 42 downwards and formation conflict post 73.

Placing a valve switch 80 on the end face of bottom plate 50 and below the conflict post 73 of thimble 70, and be placed with two stoppers 90 that highly are higher than valve switch 80, damage threshold door switch 80 when preventing down that liftout plate 42 moves down in both sides.Upper ejector plate 41 and following liftout plate 42 connect by screw, and pass the push rod 43 that being exposed to the outside of bottom plate 50 in the following downward projection one in liftout plate 42 middle parts, move up and down with following liftout plate 42 and drive thimble and go up for 70 times mobile to drive upper ejector plate 41.

The cooling means of the present invention's mould is as follows:

See also shown in Figure 1, at this moment, mould 100 is in the matched moulds state, and thimble 70 is subjected to the upwards elastic force of ejection annulus 71 of spring 72, make annulus 71 be fastened in the top of cavity volume 61, the tip cutting of thimble 70 is gone in the die cavity 25 simultaneously, and thimble 70 bottoms do not contact valve switch 80, valve switch 80 is in closed condition, so cooling fluid can't be injected in the cooling tube 24.

See also Fig. 4, behind mould 100 ejection formations, temperature raises in the mould 100, the pressure that sizing material behind the ejection formation acts on thimble 70 downwards is greater than spring 72 elastic force of ejection annulus 71 upwards, so thimble 70 is forced to move down annulus 71 compression springs 72, valve switch 80 is touched in final thimble 70 bottoms, and then open valve switch 80, and cooling fluid is injected in the cooling tube 24, begin to circulate the temperature that reduces mould 100.

See also Fig. 5, after moulding finishes, mould 100 die sinkings, male model plate 23 leaves caster 20, and temperature are still too high in the mould 100, and the elastic force that this moment, spring 72 upwards acted on annulus 71 is not enough to moulding product 26 are ejected, so thimble 70 still acts on the valve switch 80, valve switch 80 still is in opening, and cooling tube 24 continues running, and mould 100 is fully cooled off.

See also Fig. 6, when push rod 43 upwards promotes liftout plate 42, meeting drive thimble 70 moves upward and ejects moulding product 26, moulding product 26 are come off, state when this moment, thimble annulus 71 was replied matched moulds owing to the active force of spring 72, break away from valve switch 80, valve switch 80 is closed, cooling fluid stops to inject in the cooling tube 24.

As mentioned above, this mould 100 has utilized the pressure behind the matched moulds ejection formation to act on the valve switch 80 of control cooling tube 24 by thimble 70, opening valve switch 80, injects cooling fluid to cooling tube 24 and reduce mould 100 temperature; When mould 100 die sinking aftershaping product 26 come off, valve switch 80 separates with thimble 70, valve switch 80 is closed automatically, cooling fluid stops to inject in the cooling tube 24, thereby saved resource, periodically inject cooling tube 24 owing to realized cooling fluid simultaneously, thereby make mould 100 internal temperatures balanced more, and then can improve the quality of formed product.

The foregoing description is not a limitation of the present invention; the present invention also can realize by a lot of embodiments; for example fixing a conflict post on the liftout plate down; this conflict post is not only to be limited to that the foregoing description is described to be extended to form by thimble downwards; be provided with the valve switch that is positioned at below the conflict post on the bottom plate then; whether upper ejector plate and moving up and down of following liftout plate make the conflict post with the valve switch contact or separate also controlled system cooling fluid and inject in the cooling tube, so allly do equivalent variation according to basic principle of the present invention and structure and all belong to protection domain of the present invention.

Claims

1. the mould of a property performance period cooling, this mould comprises upper ejector plate and the following liftout plate between upper mounted plate, caster, mother module core, male model benevolence, male model plate, spacer block, the spacer block, and the bottom plate of bottom, be provided with cooling tube respectively in male model benevolence and mother module core place, have die cavity between mother module core and the male model benevolence, cavity bottom offers the through hole that runs through male model Renhe male model plate; It is characterized in that: on upper ejector plate and following liftout plate, offer the cavity volume that runs through upper ejector plate and following liftout plate, the movable thimble that is equiped with in the cavity volume, one end of thimble stretches out down, and liftout plate forms the conflict post, the other end of thimble inserts in through hole and the die cavity, be provided with the valve switch that is positioned at below the conflict post on the bottom plate, male model benevolence and the matched moulds of mother module core make conflict post and valve switch contact or male model benevolence and the die sinking of mother module core that the conflict post is separated with valve switch with the control cooling fluid to inject or stop to inject in the cooling tube.

2. the mould of property performance period cooling according to claim 1 is characterized in that: described valve switch both sides are placed with the stopper that highly is higher than valve switch.

3. the mould of property performance period cooling according to claim 1 is characterized in that: the middle part of described cavity volume is formed with the appearance hole that internal diameter increases, and holds the hole and is equiped with spring, and thimble has an annulus that compresses spring in the part of holding the hole.

4. the cooling means of the mould of a property performance period cooling as claimed in claim 1, it is characterized in that, this cooling means comprises: utilize the active force that produces behind the mould matched moulds to act on thimble so that thimble touches valve switch and the Open valve switch, valve switch control cooling fluid is injected in the cooling tube and is begun to cool down mould; And after treating that the mould ejection formation finishes, along with the die sinking process of mould, thimble breaks away from valve switch, and cooling fluid stops to inject in the cooling tube thereby valve switch is closed control.

5. the cooling means of the mould of property performance period cooling according to claim 4 is characterized in that: after caster and male model plate separated, upper ejector plate and following liftout plate drove thimble and move and break away from and the contacting of valve switch.

6. the cooling means of the mould of property performance period cooling according to claim 4 is characterized in that: the active force behind the mould matched moulds is the pressure of ejection formation.

7. the mould of a property performance period cooling, this mould comprises upper ejector plate and the following liftout plate between upper mounted plate, caster, mother module core, male model benevolence, male model plate, spacer block, the spacer block, and the bottom plate of bottom, be provided with cooling tube respectively in male model benevolence and mother module core place, has die cavity between mother module core and the male model benevolence, cavity bottom offers the through hole that runs through male model Renhe male model plate, is fixed with thimble on the upper ejector plate; It is characterized in that: be fixed with the conflict post on the liftout plate down, be provided with the valve switch that is positioned at below the conflict post on the bottom plate, whether upper ejector plate and moving up and down of following liftout plate make the conflict post with the valve switch contact or separate with the control cooling fluid and inject in the cooling tube.