CN210679508U

CN210679508U - Injection mold with material ejecting mechanism

Info

Publication number: CN210679508U
Application number: CN201921647966.9U
Authority: CN
Inventors: 刘加
Original assignee: Shenzhen Prix Electronics Co Ltd
Current assignee: Shenzhen Prix Electronics Co Ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-06-05
Anticipated expiration: 2029-09-27

Abstract

The utility model discloses a take injection mold of liftout mechanism relates to mould technical field, and its technical scheme main points are: including last mould and lower mould, go up the mould and be equipped with the core, the lower mould is equipped with the core down, the lower mould is equipped with the die block, the die block is equipped with ejection piece, ejection piece is equipped with the ejector pin, ejection piece is equipped with the spring, ejection piece is equipped with flexible post, the lower mould is equipped with the standing groove, the die block is equipped with proximity switch, the ejector pin is equipped with the fixture block, ejection piece includes upper plate and hypoplastron, the ejector pin is including straight ejection post, oblique ejection post includes fixed column, oblique sliding column, the die block is equipped with the guide. The mould is provided with the ejection piece, the spring and the ejector rod, so that the mould can eject the processed plastic piece conveniently; the mold is provided with the inclined ejection column, so that the mold can release adhesion with a plastic part when the plastic part is ejected out, and is convenient; through setting up the guide post, the motion trail of ejecting piece is comparatively accurate.

Description

Injection mold with material ejecting mechanism

Technical Field

The utility model relates to the technical field of mold, in particular to take injection mold of liftout mechanism.

Background

An injection mold is a tool for producing plastic products and also a tool for giving the plastic products complete structure and precise dimensions. Injection molding is a process used to mass produce parts of some complex shapes. Specifically, the heated and melted plastic is injected into a mold cavity under high pressure by an injection molding machine, and a formed product (plastic part) is obtained after cooling and solidification.

The prior Chinese utility model with the publication number of CN206326809U discloses an injection mold, which comprises a mold body with an injection molding cavity, wherein the mold body is provided with a plurality of injection molding holes communicated with the injection molding cavity; the inner wall in the chamber of moulding plastics has part uplift to constitute uplift portion, and the uplift is close to the hole of moulding plastics sets up, and pours into from the hole of moulding plastics the plastic material in the intracavity of moulding plastics is in the process to diffusion all around gradually behind the uplift, pours into the plastic material in the intracavity of moulding plastics is behind the shaping becomes the casing, and the inboard of casing is just right the uplift portion.

The above prior art solutions have the following drawbacks: after the injection mold is opened, because the plastic part is embedded in the groove, the plastic part is inconvenient to take out by personnel.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a take injection mold of liftout mechanism, it is comparatively convenient that personnel take out to mould.

The above technical purpose of the present invention can be achieved by the following technical solutions: an injection mold with a material ejecting mechanism comprises an upper mold and a lower mold, wherein an upper mold core is fixedly arranged on the upper mold, a lower mold core is fixedly arranged on the lower mold, the upper mold core and the lower mold core can be attached to form a mold cavity, the lower mold is provided with a bottom mold, the bottom mold is fixedly connected with the bottom wall of the lower mold, an ejector part is arranged on the bottom mold in a sliding manner, the sliding direction of the ejector part is along the vertical direction, an ejector rod for ejecting the plastic part is arranged at the top end of the ejector part, the lower mold and the lower mold core are both provided with a through hole for the ejector rod to pass through, the rod wall of the ejector rod is attached to the hole wall of the through hole, a spring is fixedly arranged on the ejector part, two ends of the spring are respectively fixedly connected with the ejector part and the lower mold, the elastic direction of the spring is along the vertical direction, the ejector part is provided with a telescopic column, the telescopic, the upper end of the telescopic column penetrates out of the top wall of the lower die.

Through above-mentioned technical scheme, when the compound die, go up the mould downstream, the bottom surface of going up the mould offsets with the top of flexible post, bulldozes flexible post down, flexible post and liftout piece fixed connection, and flexible post drives liftout piece and slides down, and the spring stretches and has the elasticity that contracts in, during the ejector pin moves down and contracts the perforation, the top of the back spring that the compound die finishes and the top surface parallel and level of lower die core. After the mold is opened, the top end of the shrinkage rod is not pressed by the upper mold any more, the spring shrinks, the ejection piece is driven by the shrinkage of the spring to move upwards, the ejector rod extends out of the through hole to be in contact with the plastic piece and ejects the plastic piece out of the lower mold core, and demolding is completed. Because the plastic part is ejected by the ejector rod, the personnel can take the plastic part conveniently.

Preferably, the spring nests in on flexible post, the inner wall of spring pastes with flexible post's inner wall mutually, the diapire of lower mould is equipped with the standing groove that is used for placing the spring, the top of spring is located the standing groove, the outer wall of spring pastes with the cell wall of standing groove mutually.

Through above-mentioned technical scheme, the spring inner wall pastes with the outer wall of flexible post mutually, and the outer wall of spring pastes with the cell wall of standing groove mutually, makes the spring be difficult for crooked when flexible, makes the running state of spring more stable, and the setting up of standing groove makes the fixed connection of spring and lower mould more firm.

Preferably, the bottom die is provided with a proximity switch for detecting the position of the ejection member, and the proximity switch is close to the bottom of the bottom die.

Through above-mentioned technical scheme, proximity switch's setting can detect the position of liftout piece, and the liftout piece just is detected by proximity switch when the compound die, and proximity switch signals gives external control system, and control system makes mould, lower mould stop relative movement, prevents to go up mould, lower mould damage.

Preferably, the lower end of the ejector rod is fixedly provided with a clamping block, the clamping block is clamped and embedded in the ejector piece, the ejector piece comprises an upper plate and a lower plate, the upper plate and the lower plate are fixedly connected through a bolt, the upper plate is provided with a through hole for the rod body of the ejector rod to penetrate through, and the lower surface of the upper plate is provided with a groove for the clamping block to be embedded in.

Through the technical scheme, the upper plate and the lower plate are fixedly connected through the bolt, the upper plate and the lower plate are detachable, the clamping block is fixed on the ejection piece in an embedded mode, and the ejector rod can be separated and replaced by a person from the upper plate and the lower plate, so that the device is convenient to use.

Preferably, the ejector pin includes straight support pillar, oblique support pillar, the top surface of core runs through to be equipped with the inclined hole that supplies oblique support pillar to stretch out, the straight hole that supplies straight support pillar to stretch out, the perforation comprises straight hole and inclined hole, oblique support pillar include with the fixed column of liftout fixed connection, with the top sliding connection's of fixed column oblique sliding column, the axial of oblique sliding column is the same with the axial of inclined hole, the slip direction of oblique sliding column is along the length direction of self projection on the horizontal plane.

Through the technical scheme, when the ejection part is ejected, the inclined sliding column horizontally slides along the sliding direction while moving upwards due to the guiding effect of the inclined hole, the top of the inclined ejection column moves on the plastic part, the inclined ejection column cannot be ejected to the same position, adhesion of the plastic part can be removed, and demolding is facilitated.

Preferably, the inclined holes are formed in the circumferential direction of the lower mold core, and the inclined ejection columns are arranged corresponding to the inclined holes.

Through the technical scheme, the plurality of inclined ejection columns are arranged, so that the demolding is more convenient.

Preferably, the die block is provided with guide posts, the guide posts are fixedly connected with the bottom wall of the die block, the axial directions of the guide posts are vertical, and the ejection piece is nested on the guide posts.

Through above-mentioned technical scheme, the setting of guide post makes the direction of motion of ejecting more accurate, stable.

Preferably, the guide column is provided with a plurality of guide columns.

Through above-mentioned technical scheme, the accuracy of the motion of ejector member is further strengthened in the setting of many guide posts.

To sum up, the utility model discloses the beneficial effect who contrasts in prior art does:

1. the mould is provided with the ejection piece, the spring and the ejector rod, so that the mould can eject the processed plastic piece conveniently;

2. the mold is provided with the inclined ejection column, so that the mold can release adhesion with a plastic part when the plastic part is ejected out, and is convenient;

3. through setting up the guide post, the motion trail of ejecting piece is comparatively accurate.

Drawings

FIG. 1 is a perspective view of an injection mold with a material ejecting mechanism according to an embodiment;

FIG. 2 is a first cross-sectional view of the embodiment;

fig. 3 is a second cross-sectional view of the embodiment.

In the figure, 1, an upper die; 11. an upper mold core; 2. a lower die; 21. a lower mold core; 22. bottom die; 221. a guide post; 222. an inner cavity; 23. ejecting the part; 231. an upper plate; 232. a lower plate; 233. a through hole; 234. a groove; 24. a top rod; 241. a straight top column; 242. a slanted ejecting column; 2421. fixing a column; 2422. a diagonal slide post; 243. a clamping block; 25. perforating; 251. an inclined hole; 252. a straight hole; 26. a spring; 27. a telescopic column; 28. a placement groove; 29. a proximity switch.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a take injection mold of liftout mechanism, including last mould 1 and lower mould 2, the shape of going up mould 1 and lower mould 2 is the cuboid form, goes up mould 1 and is equipped with core 11, and lower mould 2 is equipped with down core 21, goes up core 11 and last mould 1 and passes through bolt fixed connection, and lower core 21 passes through bolt and 2 fixed connection of lower mould, goes up core 11 and lower core 21 can laminate after the compound die and form the die cavity.

The lower die 2 is provided with a bottom die 22, the bottom die 22 is rectangular, the bottom die 22 is fixedly connected with the bottom wall of the lower die 2, the bottom die 22 is provided with an inner cavity 222, the inner cavity 222 penetrates through two ends of the bottom die 22 in the length direction, the bottom die 22 is provided with an ejector 23 in a sliding mode, the ejector 23 is located in the inner cavity 222, the ejector 23 is plate-shaped, the sliding direction of the ejector 23 is along the vertical direction, and the top end of the ejector 23 is provided with a plurality of ejector rods 24 used for ejecting plastic parts. The lower end of the ejector rod 24 is fixedly provided with a clamping block 243, the clamping block 243 is clamped on the ejector member 23, the ejector member 23 comprises an upper plate 231 and a lower plate 232, the upper plate 231 and the lower plate 232 are fixedly connected through bolts, the clamping block 243 is located between the upper plate 231 and the lower plate 232, the bottom surface of the upper plate 231 is provided with a groove 234 for the clamping block 243 to be placed, the shape of the groove 234 is matched with that of the clamping block 243, the upper plate 231 is provided with a through hole 233 for the ejector rod 24 to pass through, and the through hole 233 is communicated with the groove 234. The upper plate 231 and the lower plate 232 are fixedly connected through bolts, the upper plate 231 and the lower plate 232 are detachable, the clamping block 243 is clamped and fixed on the ejection piece 23, and a person can separate the upper plate 231 and the lower plate 232 to replace the ejector rod 24, so that convenience is brought.

Lower mould 2 all is equipped with the perforation 25 that supplies ejector pin 24 to pass with lower core 21, the pole wall of ejector pin 24 and the pore wall laminating of perforation 25, the roof of liftout 23 has set firmly spring 26, spring 26's both ends respectively with the top surface of

liftout

23, 2 fixed connection of lower mould, vertical direction is followed to spring 26's elasticity direction, liftout 23 is equipped with flexible post 27, the top surface fixed connection of flexible post 27 and liftout 23, vertical direction is followed to flexible post 27's axial, the roof of lower mould 2 is worn out to the upper end of flexible post 27. When the mold is closed, the upper mold 1 moves downwards, the bottom surface of the upper mold 1 abuts against the top end of the telescopic column 27, the telescopic column 27 is pushed downwards, the telescopic column 27 is fixedly connected with the ejection piece 23, the telescopic column 27 drives the ejection piece 23 to slide downwards, the spring 26 stretches and has internal contraction elasticity, the ejector rod 24 moves downwards and retracts into the through hole 25, and the top end of the spring 26 is flush with the top surface of the lower mold core 21 after the mold closing is finished. After the mold is opened, because the top end of the telescopic column 27 is not pressed by the upper mold 1 any more, the spring 26 contracts, the ejector 23 moves upwards under the driving of the contraction of the spring 26, the ejector rod 24 extends out of the through hole 25 to contact with the plastic part and eject the plastic part out of the lower mold core 21, the demolding is completed, and because the plastic part is ejected by the ejector rod 24, the plastic part is convenient for a person to take.

Referring to fig. 2 and 3, the spring 26 is nested on the telescopic column 27, the inner wall of the spring 26 is attached to the outer wall of the telescopic column 27, the bottom wall of the lower die 2 is provided with a placing groove 28, the top end of the spring 26 is located in the placing groove 28, and the outer wall of the spring 26 is attached to the groove wall of the placing groove 28. The placement of the slot 28 makes the fixed attachment of the spring 26 more secure.

The top rod 24 comprises a straight top column 241 and an inclined top column 242, the axial direction of the straight top column 241 is along the vertical direction, an inclined hole 251 for the inclined top column 242 to extend out and a straight hole 252 for the straight top column 241 to extend out are arranged on the top surface of the lower mold core 21 in a penetrating mode, the lower mold 2 plate and the lower mold core 21 are penetrated through by the inclined hole 251 and the straight hole 252, the inclined top column 242 comprises a fixing column 2421 and an inclined sliding column 2422 in sliding connection with the top of the fixing column 2421, the fixing column 2421 is located below the inclined sliding column 2422, the fixing column 2421 is fixedly connected with the ejector 23, the lower end of the inclined sliding column 2422 is in sliding connection with the top of the fixing column 2421, the axial direction of the inclined sliding column 2422 is the same as the axial direction of the inclined hole 251, and the sliding direction of the inclined sliding column 2422 is along the length direction of the projection of the inclined sliding. The inclined holes 251 are provided in plural in the circumferential direction of the lower core 21, and the inclined top posts 242 are provided in plural corresponding to the inclined holes 251. When the ejector 23 is ejected, the slanting sliding column 2422 moves upward and slides horizontally in the sliding direction due to the guiding effect of the inclined hole 251, the top of the slanting top column 242 moves on the plastic part and cannot be ejected at the same position, the adhesion with the plastic part can be removed, and the demolding is facilitated. The arrangement of the plurality of oblique top posts 242 makes the demolding more convenient.

A proximity switch 29 for detecting the position of the ejector 23 is fixedly arranged on the side wall of the bottom die 22, and the proximity switch 29 is close to the bottom of the bottom die 22. The position of the ejector piece 23 can be detected by the arrangement of the proximity switch 29, the ejector piece 23 is just detected by the proximity switch 29 when the mold is closed, the proximity switch 29 sends a signal to an external control system, and the control system enables the upper mold 1 and the lower mold 2 to stop relative movement, so that the upper mold 1 and the lower mold 2 are prevented from being damaged. The bottom die 22 is fixedly provided with a guide column 221, the guide column 221 is located in the inner cavity 222, the axial direction of the guide column 221 is along the vertical direction, the bottom end of the guide column 221 is fixedly connected with the bottom wall of the bottom die 22, and the guide column 221 penetrates through the ejector 23. The arrangement of the guide columns 221 enables the moving direction of the ejector 23 to be more accurate and stable, the guide columns 221 are provided with a plurality of guide columns 221, and the accuracy of the moving direction of the ejector 23 is further enhanced by the plurality of guide columns 221.

The mould is provided with the ejection piece 23, the spring 26 and the ejector rod 24, so that the processed plastic piece is ejected out by the mould, and the mould is convenient to use. The oblique ejection column 242 is arranged, so that the die can remove adhesion with a plastic part when the plastic part is ejected out, and convenience is brought. By providing the guide post 221, the movement locus of the ejector member 23 is accurate.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a take injection mold of liftout mechanism, includes last mould (1) and lower mould (2), it has set firmly core (11) to go up mould (1), lower mould (2) have set firmly lower core (21), it can laminating shape molding chamber, characterized by to go up core (11) and lower core (21): lower mould (2) is equipped with die block (22), the diapire fixed connection of die block (22) and lower mould (2), die block (22) slide and are equipped with ejecting (23), the slip direction of ejecting (23) is along vertical direction, the top of ejecting (23) is equipped with ejector pin (24) that are used for ejecting the piece of moulding, lower mould (2) all are equipped with perforation (25) that supply ejector pin (24) to pass with lower die core (21), the pole wall of ejector pin (24) and the pore wall laminating of perforation (25), ejecting (23) have set firmly spring (26), the both ends of spring (26) respectively with ejecting (23), lower mould (2) fixed connection, the elasticity direction of spring (26) is along vertical direction, ejecting (23) are equipped with flexible post (27), flexible post (27) and the top surface fixed connection of ejecting (23), the axial direction of flexible post (27) is along vertical direction, the roof of lower mould (2) is worn out to the upper end of flexible post (27).

2. The injection mold with the ejection mechanism as claimed in claim 1, wherein: the spring (26) is nested on the telescopic column (27), the inner wall of the spring (26) is attached to the inner wall of the telescopic column (27), a placing groove (28) for placing the spring (26) is formed in the bottom wall of the lower die (2), the top end of the spring (26) is located in the placing groove (28), and the outer wall of the spring (26) is attached to the groove wall of the placing groove (28).

3. The injection mold with the ejection mechanism as claimed in claim 1, wherein: the bottom die (22) is provided with a proximity switch (29) for detecting the position of the ejection piece (23), and the proximity switch (29) is close to the bottom of the bottom die (22).

4. The injection mold with the ejection mechanism as claimed in claim 1, wherein: the lower end of the ejector rod (24) is fixedly provided with a clamping block (243), the clamping block (243) is clamped and embedded in the ejector part (23), the ejector part (23) comprises an upper plate (231) and a lower plate (232), the upper plate (231) and the lower plate (232) are fixedly connected through bolts, the upper plate (231) is provided with a through hole (233) for a rod body of the ejector rod (24) to penetrate through, and the lower surface of the upper plate (231) is provided with a groove (234) for the clamping block (243) to be embedded in.

5. The injection mold with the ejection mechanism as claimed in claim 1, wherein: the ejector rod (24) comprises a straight ejection column (241) and an inclined ejection column (242), an inclined hole (251) for the inclined ejection column (242) to extend out and a straight hole (252) for the straight ejection column (241) to extend out are arranged on the top surface of the lower mold core (21) in a penetrating mode, the through hole (25) is composed of the straight hole (252) and the inclined hole (251), the inclined ejection column (242) comprises a fixing column (2421) fixedly connected with the ejection piece (23) and an inclined sliding column (2422) in sliding connection with the top of the fixing column (2421), the axial direction of the inclined sliding column (2422) is the same as that of the inclined hole (251), and the sliding direction of the inclined sliding column (2422) is along the length direction of the projection of the inclined sliding column (2422) on the horizontal plane.

6. The injection mold with the ejection mechanism as claimed in claim 5, wherein: the inclined holes (251) are arranged in a plurality along the circumferential direction of the lower core (21), and the inclined top column (242) is arranged in a plurality corresponding to the inclined holes (251).

7. The injection mold with the ejection mechanism as claimed in claim 1, wherein: the die block (22) is equipped with guide post (221), the diapire fixed connection of guide post (221) and die block (22), the axial of guide post (221) is along vertical direction, liftout (23) nestification is on guide post (221).

8. The injection mold with the ejection mechanism as claimed in claim 7, wherein: the guide columns (221) are provided with a plurality of guide columns.