CN210233899U - Movable mould structure capable of being cooled rapidly - Google Patents

Abstract

The utility model belongs to the technical field of injection mold, especially, relate to a movable mould structure that can cool off fast. The utility model discloses, comprising a base plate, bottom plate one side be equipped with the cover half piece, the cover half piece in be equipped with a plurality of shaping holes that distribute along cover half piece central line ring array, the cover half piece keep away from bottom plate one side and be equipped with movable mould piece, the movable mould piece in be equipped with a plurality of shaping holes No. two that distribute along movable mould piece central line ring array, the position one-to-one of No. two shaping holes and shaping hole, when the compound die, every shaping hole No. two is linked together with a shaping hole and forms a complete die cavity, the movable mould in be equipped with quick cooling module. The utility model discloses an evenly distributed's cooling water course and bottom cooling water course can guarantee in the cooling process, and the cooling is even, can not produce the difference in temperature to avoid the product to produce deformation and inside residual thermal stress, make the cooling process more quick, reduce the product disability rate.

Description

Movable mould structure capable of being cooled rapidly

Technical Field

The utility model belongs to the technical field of injection mold, a can quick refrigerated movable mould structure is related to.

Background

The plastic injection mold cooling system plays a crucial role in the injection mold, the production efficiency of the injection mold and the quality of a plastic part are directly influenced, the cooling time of the existing injection mold approximately accounts for 2/3 of the whole injection molding cycle period, the cooling time is long, the cooling is uneven easily in the prior art, and therefore the plastic part is deformed and residual thermal stress inside the plastic part is caused, and the rejection rate of the plastic part is increased.

In order to overcome the defects of the prior art, people continuously explore and propose various solutions, for example, a chinese patent discloses an injection mold [ application number: 201621390906.X ] comprises a cavity plate and a core, wherein the cavity plate encloses a molding cavity, a through hole penetrating through the cavity plate and communicated with the molding cavity is formed in the bottom of the molding cavity, and the core penetrates through the through hole and extends into the molding cavity. The utility model provides an injection mold has simple structure, the easy advantage of accurate processing. However, the solution still has the disadvantages that the product cannot be cooled rapidly and uneven cooling is easy to occur.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, provide a can quick refrigerated movable mould structure.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

the utility model provides a movable mould structure that can cool off fast, includes the bottom plate, bottom plate one side be equipped with the cover half piece, the cover half piece in be equipped with a plurality of shaping holes that distribute along cover half piece central line ring array, the cover half piece keep away from bottom plate one side and be equipped with the movable mould piece, the movable mould in be equipped with a plurality of No. two shaping holes that distribute along movable mould piece central line ring array, the position one-to-one of No. two shaping holes and a shaping hole, when the compound die, every No. two shaping holes and a shaping hole are linked together and form a complete die cavity, the movable mould in be equipped with quick cooling module, the movable mould piece keep away from cover half piece one side and be equipped with the back die carrier, back die carrier keep away from movable mould one side and be equipped with preceding die carrier, preceding die carrier keep away from back die carrier one side and be equipped with the injection molding board.

In the above moving mold structure capable of rapid cooling, the rapid cooling assembly includes a plurality of cooling water channels disposed in the moving mold, the cooling water channels are distributed in a rectangular array along the axis of the moving mold, and the cooling water channels are perpendicular to the second molding hole.

In the above moving mold structure capable of rapid cooling, the vertical distances between the axes of the cooling water channels and the axes of the second molding holes are equal, the vertical distances between the axes of two adjacent cooling water channels are equal, and the two sides of each second molding hole are provided with the same number of cooling water channels.

In foretell movable mould structure that can cool off fast, the cover half in still be equipped with a plurality of bottom cooling water courses, bottom cooling water course and a shaping hole mutually perpendicular, the axial lead of bottom cooling water course and the perpendicular distance of a shaping hole axial lead equal, bottom cooling water course and cooling water course be parallel to each other and length equal, every shaping hole both sides are equipped with the bottom cooling water course that quantity equals.

In foretell movable mould structure that can cool off fast, preceding die carrier in be equipped with the corresponding one-level runner hole in sprue position of moulding plastics, preceding die carrier in be equipped with along preceding die carrier axial lead be the fixed chamber No. one of rectangular array distribution, back die carrier in be equipped with the second grade runner hole corresponding with one-level runner hole position, second grade runner jogged joint have a plurality of subchannels, back die carrier in still be equipped with the fixed chamber No. two of every fixed chamber one-to-one, back die carrier bottom still be equipped with the recess No. one.

In the moving die structure capable of being cooled rapidly, the moving die block is provided with a plurality of shunting holes corresponding to the positions of the shunting channels, each shunting channel is communicated with one shunting hole when die assembly is carried out, each shunting hole is connected with one second forming hole, the positions of the second forming holes and the second fixed cavity correspond one to one, and the second forming holes correspond to and are communicated with the second fixed cavity when die assembly is carried out.

In the movable mold structure capable of being rapidly cooled, one end of the movable mold block, which is close to the rear mold frame, is provided with the first convex block, the shape of the first convex block is matched with that of the first groove, and when the mold is closed, the first convex block enters the first groove.

In the above moving mold structure capable of being cooled rapidly, one end of the moving mold block, which is far away from the rear mold base, is provided with a first convex block and a second convex block, a second groove matched with the second convex block is formed in the fixed mold block, and when the mold is closed, the second convex block enters the second groove.

In the above moving die structure capable of rapidly cooling, each first fixing cavity is internally provided with a die core which sequentially extends into the second fixing cavity, the second forming hole and the first forming hole, the diameter of the die core is smaller than that of the second forming hole and the first forming hole, and the die core is internally provided with an ejector rod capable of linearly reciprocating along the vertical direction.

In the above moving die structure capable of rapid cooling, each first forming hole is connected with a plurality of grooves distributed in an annular array along the axis of the first forming hole, and the depth of the grooves gradually decreases from the top to the bottom of the first forming hole.

Compared with the prior art, the utility model has the advantages of:

1. the utility model discloses an evenly distributed's cooling water course and bottom cooling water course can guarantee in the cooling process, and the cooling is even, can not produce the difference in temperature to avoid the product to produce deformation and inside residual thermal stress, make the cooling process more quick, reduce the product disability rate.

2. The utility model discloses a protruding block and No. two protruding blocks of two sides of movable mould piece have further guaranteed that the mould wholly can not take place the skew at the in-process of moulding plastics, and the die cavity does not change, avoids the product unqualified.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic sectional view in the direction of a-a in fig. 1.

Fig. 3 is an exploded schematic view of the present invention.

Fig. 4 is an exploded view in another direction of the present invention.

Fig. 5 is a schematic structural diagram of a movable module.

FIG. 6 is a schematic view of the moving module in another direction.

Fig. 7 is a top view of the movable block.

Fig. 8 is a schematic structural diagram of the stator module.

Fig. 9 is a schematic structural view of the posterior scaffold.

Fig. 10 is a schematic structural view of the mold core.

Fig. 11 is a plan view of the present invention.

Fig. 12 is a schematic sectional view in the direction B-B in fig. 11.

In the figure: the mold comprises a bottom plate 1, a fixed mold block 2, a first molding hole 3, a movable mold block 4, a rapid cooling assembly 5, a rear mold frame 6, a front mold frame 7, an injection molding plate 8, an injection molding main runner 9, a cooling water channel 10, a bottom cooling water channel 11, a first-stage runner hole 12, a first fixed cavity 13, a second-stage runner hole 14, a flow distribution channel 15, a second fixed cavity 16, a flow distribution hole 17, a first groove 18, a first lug 19, a second lug 20, a second groove 21, a mold core 22, an ejector rod 23, a groove 24 and a second molding hole 30.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, 2, 3 and 11, a moving die structure capable of being rapidly cooled comprises a bottom plate 1, a fixed die block 2 is arranged on one side of the bottom plate 1, a plurality of first forming holes 3 distributed along the central line of the fixed die block 2 in an annular array manner are arranged in the fixed die block 2, a moving die block 4 is arranged on one side, away from the bottom plate 1, of the fixed die block 2, a plurality of second forming holes 30 distributed along the central line of the moving die block 4 in an annular array manner are arranged in the moving die block 4, the positions of the second forming holes 30 and the first forming holes 3 correspond to each other one by one, when die assembly is carried out, each second forming hole 30 is communicated with one first forming hole 3 to form a complete die cavity, a rapid cooling assembly 5 is arranged in the moving die block 4, a rear die carrier 6 is arranged on one side, away from the fixed die block 2, a front die carrier 7 is arranged on one side, away from the moving die carrier 4, an injection molding plate 8 is arranged on one, and an injection molding main runner 9 is arranged in the injection molding plate 8.

In the embodiment, when the mold is closed, the bottom plate 1, the fixed mold block 2, the movable mold block 4, the rear mold frame 6, the front mold frame 7 and the injection molding plate 8 are close to each other, the second molding hole 30 is communicated with the first molding hole 3 to form a complete cavity, and the molten raw material is injected from the injection main runner 9.

Referring to fig. 2 and 12, the rapid cooling assembly 5 includes a plurality of cooling water channels 10 disposed in the movable mold block 4, the cooling water channels 10 are distributed in a rectangular array along the axial line of the movable mold block 4, and the cooling water channels 10 are perpendicular to the second molding holes 30.

Specifically, the cooling water channel 10 horizontally penetrates through the movable mold block 4, the second molding hole 30 vertically penetrates through the movable mold block 4, and the cooling water channel 10 and the second molding hole 30 are not intersected with each other.

Referring to fig. 1 and 12, the vertical distances between the axes of the cooling water channels 10 and the axes of the second forming holes 30 are equal, the vertical distances between the axes of two adjacent cooling water channels 10 are equal, and the cooling water channels 10 with the same number are arranged on two sides of each second forming hole 30.

In this embodiment, the vertical distance between the axial lead of cooling water course 10 and No. two shaping hole 30 axial leads equals, and the vertical distance of two adjacent cooling water course 10 axial leads equals, and cooling water course 10 distributes evenly and can guarantee at the cooling process, and the product cooling rate in No. two shaping holes 30 is the same, and the cooling is even, can not produce the difference in temperature to avoid the product to take place deformation, every No. two shaping hole 30 both sides are equipped with the cooling water course 10 that quantity equals and can make the cooling process more quick.

Combine fig. 1, fig. 2, fig. 12 to show, fixed mould piece 2 in still be equipped with a plurality of bottom cooling water course 11, bottom cooling water course 11 and a shaping hole 3 mutually perpendicular, the axial lead of bottom cooling water course 11 and the vertical distance of a shaping hole 3 axial lead equal, bottom cooling water course 11 and cooling water course 10 be parallel to each other and length equals, every shaping hole 3 both sides are equipped with the bottom cooling water course 11 that the quantity equals.

In this embodiment, the axial lead of bottom cooling water course 11 equals with the vertical distance of the 3 axial leads of one shaping hole, and every 3 both sides of one shaping hole are equipped with the equal bottom cooling water course 11 of quantity and can guarantee in the cooling process, and the product bottom that is located one shaping hole 3 is cooled off evenly equally, makes cooling rate the same, gets rid of inside residual thermal stress, avoids the product to take place deformation, makes the whole cooling of product faster.

As shown in fig. 2, 4 and 9, the front mold frame 7 is provided with a first-stage runner hole 12 corresponding to the position of the injection molding main runner 9, the front mold frame 7 is provided with a first fixed cavity 13 distributed in a rectangular array along the axial lead of the front mold frame 7, the rear mold frame 6 is provided with a second-stage runner hole 14 corresponding to the position of the first-stage runner hole 12, the second-stage runner hole 14 is connected with a plurality of branch runners 15, the rear mold frame 6 is provided with a second fixed cavity 16 corresponding to each first fixed cavity 13 one by one, and the bottom of the rear mold frame 6 is provided with a groove 18.

When the mold is closed, the injection molding main runner 9 corresponds to and is communicated with the primary runner hole 12, and during injection molding, the molten raw materials sequentially enter the injection molding main runner 9, the primary runner hole 12, the secondary runner hole 14 and the sub-runners 15.

Referring to fig. 3 and 7, the movable mold block 4 is provided with a plurality of branch flow holes 17 corresponding to the positions of the branch flow channels 15, when the mold is closed, each branch flow channel 15 is communicated with one branch flow hole 17, each branch flow hole 17 is connected with a second molding hole 30, the positions of the second molding holes 30 are in one-to-one correspondence with the positions of the second fixed cavities 16, and when the mold is closed, the second molding holes 30 are corresponding to and communicated with the second fixed cavities 16.

In this embodiment, when the dies are closed, the molten raw material flows through the branch holes 17 through the branch passages 15 and then enters the second molding hole 30.

Referring to fig. 3 and 5, a first projection 19 is arranged at one end of the movable mold block 4 close to the rear mold frame 6, the shape of the first projection 19 is matched with that of the first groove 18, and when the mold is closed, the first projection 19 enters the first groove 18.

In this embodiment, during mold closing, the first protrusion 19 moves toward the first groove 18 for abutting engagement, the first protrusion 19 and the first groove 18 are completely matched in shape for positioning, and the contact surface is a smooth curved surface.

Referring to fig. 4, 6 and 8, a first projection 19 and a second projection 20 are provided at one end of the movable mold block 4 away from the rear mold frame 6, a second groove 21 matched with the second projection 20 is provided in the fixed mold block 2, and when the mold is closed, the second projection 20 enters the second groove 21.

In this embodiment, during the compound die, No. two lugs 20 move to No. two recess 21 one side directions and can carry out the butt cooperation, play the positioning action, No. two lugs 20 agree with completely with No. two recess 21's shape, and the contact surface is smooth curved surface, and movable mould 4 is two sides all have the bulge, has further guaranteed that the whole skew can not take place for the mould in the process of moulding plastics, and the die cavity does not change, avoids the product unqualified.

As shown in fig. 5, 10 and 12, a mold core 22 extending into the second fixing cavity 16, the second forming hole 30 and the first forming hole 3 in sequence is arranged in each first fixing cavity 13, the diameter of the mold core 22 is smaller than the diameters of the second forming hole 30 and the first forming hole 3, and a push rod 23 capable of reciprocating in a straight line along a vertical direction is arranged in the mold core 22.

In this embodiment, the diameter of the mold core 22 is smaller than the diameters of the second forming hole 30 and the first forming hole 3, so that the annular gap between the mold core 22 and the second forming hole 30 and the first forming hole 3 is a forming cavity, the product after injection molding is hollow, and after the injection molding is cooled, the product is ejected out through the ejector rod 23.

Referring to fig. 8, each of the first forming holes 3 is connected with a plurality of grooves 24 distributed in an annular array along the axis of the first forming hole 3, and the depth of each groove 24 gradually decreases from the top to the bottom of the first forming hole 3.

Specifically, the mold produces a product having an annular protrusion at the bottom, and the groove 24 is adapted to the annular protrusion to be produced.

The utility model discloses a theory of operation is:

after the die is closed, the injection molding main runner 9 corresponds to and is communicated with the primary runner hole 12, during injection molding, a molten raw material is injected into the injection molding main runner 9 and sequentially enters the injection molding main runner 9, the primary runner hole 12, the secondary runner hole 14 and the sub-runner 15, the mold core 22 sequentially extends into the first fixing cavity 13, the second fixing cavity 16, the second molding hole 30 and the first molding hole 3, annular gaps among the mold core 22, the second molding hole 30 and the first molding hole 3 are molding cavities, and the molten raw material flows through the sub-runner 15 and then enters the second molding hole 30, the first molding hole 3 and the groove 24 after flowing through the sub-runner 17.

When needs cool off the mould, pour into the cooling into in cooling water course 10 and bottom cooling water course 11 with the cooling, can carry out quick cooling with the product, cool off simultaneously evenly, avoid taking place the deformation.

And after cooling, ejecting the product through the ejector rod 23.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein will be apparent to those skilled in the art without departing from the spirit of the invention.

Although terms such as the bottom plate 1, the fixed mold block 2, the first molding hole 3, the movable mold block 4, the rapid cooling assembly 5, the rear mold frame 6, the front mold frame 7, the injection molding plate 8, the injection molding main flow passage 9, the cooling water passage 10, the bottom cooling water passage 11, the first-stage flow passage hole 12, the first fixing cavity 13, the second-stage flow passage hole 14, the branch flow passage 15, the second fixing cavity 16, the branch flow hole 17, the first groove 18, the first projection 19, the second projection 20, the second groove 21, the mold core 22, the ejector pin 23, the groove 24, and the second molding hole 30 are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.

Claims (10)

1. A movable mould structure capable of being cooled rapidly comprises a bottom plate (1), wherein a fixed module (2) is arranged on one side of the bottom plate (1), and is characterized in that a plurality of first forming holes (3) distributed along the central line of the fixed module (2) in an annular array manner are formed in the fixed module (2), a movable module (4) is arranged on one side, away from the bottom plate (1), of the fixed module (2), a plurality of second forming holes (30) distributed along the central line of the movable module (4) in an annular array manner are formed in the movable module (4), the positions of the second forming holes (30) and the first forming holes (3) are in one-to-one correspondence, when a mould is closed, each second forming hole (30) is communicated with one first forming hole (3) to form a complete mould cavity, a rapid cooling assembly (5) is arranged in the movable module (4), and a rear mould base (6) is arranged on one side, away from the fixed module (2), of the movable module (, rear die carrier (6) keep away from movable mould piece (4) one side and be equipped with preceding die carrier (7), preceding die carrier (7) keep away from rear die carrier (6) one side and be equipped with injection molding board (8), injection molding board (8) in be equipped with injection molding sprue (9).

2. The movable mold structure capable of rapid cooling according to claim 1, wherein the rapid cooling assembly (5) comprises a plurality of cooling water channels (10) disposed in the movable mold block (4), the cooling water channels (10) are distributed in a rectangular array along the axial line of the movable mold block (4), and the cooling water channels (10) are perpendicular to the second molding hole (30).

3. The movable mold structure capable of cooling rapidly according to claim 2, characterized in that the vertical distance between the axis of the cooling water channel (10) and the axis of the second molding hole (30) is equal, the vertical distance between the axes of two adjacent cooling water channels (10) is equal, and the number of cooling water channels (10) is equal on both sides of each second molding hole (30).

4. The movable mold structure capable of rapidly cooling according to claim 3, wherein a plurality of bottom cooling water channels (11) are further arranged in the fixed mold block (2), the bottom cooling water channels (11) are perpendicular to the first molding holes (3), the perpendicular distance between the axis of each bottom cooling water channel (11) and the axis of each first molding hole (3) is equal, the bottom cooling water channels (11) and the cooling water channels (10) are parallel to each other and have equal length, and the bottom cooling water channels (11) with equal number are arranged on two sides of each first molding hole (3).

5. A movable mould structure capable of being cooled rapidly according to claim 4, characterized in that a first-stage runner hole (12) corresponding to the position of an injection main runner (9) is formed in the front mould frame (7), first-stage fixed cavities (13) distributed in a rectangular array along the axial lead of the front mould frame (7) are formed in the front mould frame (7), a second-stage runner hole (14) corresponding to the position of the first-stage runner hole (12) is formed in the rear mould frame (6), a plurality of branch runners (15) are connected to the second-stage runner hole (14), a second-stage fixed cavity (16) corresponding to each first-stage fixed cavity (13) in a one-to-one mode is formed in the rear mould frame (6), and a first groove (18) is formed in the bottom of the rear mould frame (6).

6. A movable mould structure capable of being rapidly cooled according to claim 5, characterized in that the movable mould block (4) is provided with a plurality of branch flow holes (17) corresponding to the positions of the branch flow channels (15), each branch flow channel (15) is communicated with one branch flow hole (17) when the mould is closed, each branch flow hole (17) is connected with a second forming hole (30), the positions of the second forming holes (30) are in one-to-one correspondence with the positions of the second fixing cavities (16), and the second forming holes (30) are corresponding to and communicated with the second fixing cavities (16) when the mould is closed.

7. A movable mould structure capable of being rapidly cooled according to claim 6, characterized in that one end of the movable mould block (4) close to the rear mould frame (6) is provided with a first convex block (19), the shape of the first convex block (19) is matched with that of the first groove (18), and when the mould is closed, the first convex block (19) enters the first groove (18).

8. A movable mould structure capable of being rapidly cooled according to claim 7, characterized in that a first bump (19) and a second bump (20) are arranged at one end of the movable mould block (4) far away from the rear mould frame (6), a second groove (21) matched with the second bump (20) is arranged in the fixed mould block (2), and when the mould is closed, the second bump (20) enters the second groove (21).

9. A movable mould structure capable of being rapidly cooled according to claim 8, wherein each first fixing cavity (13) is internally provided with a mould core (22) which sequentially extends into a second fixing cavity (16), a second forming hole (30) and a first forming hole (3), the diameter of the mould core (22) is smaller than that of the second forming hole (30) and the first forming hole (3), and the mould core (22) is internally provided with a mandril (23) capable of linearly reciprocating in the vertical direction.

10. A moving mold structure capable of being cooled rapidly according to claim 1, wherein each forming hole (3) is connected with a plurality of grooves (24) distributed in an annular array along the axis of the forming hole (3), and the depth of the grooves (24) is gradually reduced from the top to the bottom of the forming hole (3).

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