CN216782510U

CN216782510U - Automatic defoaming type injection mold capable of uniformly spraying release agent

Info

Publication number: CN216782510U
Application number: CN202123367871.1U
Authority: CN
Inventors: 王金华
Original assignee: Huzhou Gaoyuan Gold Technology Co ltd
Current assignee: Huzhou Gaoyuan Gold Technology Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-06-21
Anticipated expiration: 2031-12-29

Abstract

The utility model discloses an automatic defoaming injection mold capable of uniformly spraying a mold release agent, which comprises a fixing plate, an electric push rod, a lower mold, a core mold and an upper mold, wherein the outer side of the fixing plate is fixedly provided with the electric push rod, the end part of the electric push rod is fixedly provided with the lower mold, the central position of the lower mold is embedded and provided with the core mold, and the outer side of the lower mold is provided with the upper mold; further comprising: the sliding groove is formed in the inner side of the lower die, an air bag is arranged on the inner side of the sliding groove, and the end part of the air bag is connected with a first magnetic block; the second magnetic block is movably arranged on the inner side of the lower die; and the liquid storage bin is fixedly arranged on the outer side of the fixing plate. This can evenly spray automation of release agent removes bubble type injection mold can suitably strike the mandrel automatically at the in-process of moulding plastics, effectively removes the bubble in the hot melt material through the vibration, can spray the release agent simultaneously in the compound die in-process is automatic, the subsequent drawing of patterns operation of being convenient for, the practicality is strong.

Description

Automatic defoaming type injection mold capable of uniformly spraying release agent

Technical Field

The utility model relates to the technical field of molds, in particular to an automatic defoaming injection mold capable of uniformly spraying a release agent.

Background

In the production process of plastic products, an injection mold is often needed to realize the molding of products, the hot-melt raw materials are injected into a mold cavity, and the products are shaped through cooling and solidification, but the existing mold still has some defects in the using process.

An injection mold convenient to demolding like publication No. CN214448105U, it is through first electric telescopic handle, the shower nozzle, the distributor, the second conveyer pipe, miniature pump, the release agent bin, servo motor, drive gear, driven gear, the second axostylus axostyle, the cooperation setting between the stop gear, automatic ration sprays the release agent, make things convenient for the material to demold fast, avoid material and the adhesion of mould inner wall, can be after the material sprays the release agent, automatically, make the mould rotation degree carry out the drawing of patterns operation, promote degree of automation, reduce artifical working strength, promote work efficiency, but its spraying of release agent needs to use independent drive arrangement, thereby increased the manufacturing cost of equipment, and it is limited to spray the homogeneity, it is inconvenient to carry out the bubble to the hot melt raw materials of die cavity inside and gets rid of simultaneously, there is certain service defect.

We have therefore proposed an automatic defoaming type injection mold that can uniformly spray a release agent in order to solve the problems set forth above.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an automatic defoaming type injection mold capable of uniformly spraying a mold release agent, which aims to solve the problems that the spraying of the mold release agent on the injection mold in the current market proposed by the background art needs to use an independent driving device, so that the production cost of the device is increased, the spraying uniformity is limited, and the bubble removal of hot-melt raw materials in a mold cavity is inconvenient.

In order to achieve the purpose, the utility model provides the following technical scheme: an automatic defoaming injection mold capable of uniformly spraying a mold release agent comprises a fixing plate, an electric push rod, a lower mold, a core mold and an upper mold, wherein the electric push rod is fixedly installed on the outer side of the fixing plate, the lower mold is fixedly installed at the end part of the electric push rod, the core mold is embedded and installed in the center of the lower mold, and the upper mold is arranged on the outer side of the lower mold;

further comprising:

the sliding groove is formed in the inner side of the lower die, an air bag is arranged on the inner side of the sliding groove, and the end part of the air bag is connected with a first magnetic block;

the second magnetic block is movably arranged on the inner side of the lower die and is used for knocking the core die;

the liquid storage bin is fixedly arranged on the outer side of the fixing plate and used for storing a release agent;

the liquid suction bin is arranged on the inner side of the lower die, a movable rod penetrates through the inner side of the liquid suction bin, a top rod is connected to an upper end bearing of the movable rod, and a piston sheet is fixedly arranged on the outer side of the movable rod.

Preferably, the air bag is arranged in an L-shaped structure, and the side wall of the upper end of the air bag is attached to the core mold.

Through adopting above-mentioned technical scheme for the mould is at the compound die in-process of moulding plastics, and the temperature of mandrel can rise fast, and the heat of mandrel can conduct for the gasbag this moment for the inside gas heat of gasbag expands, thereby orders about the gasbag and takes place inflation, deformation.

Preferably, the first magnetic block connected with the lower end of the air bag and the chute form a sliding structure, and the first magnetic block and the second magnetic block correspond to each other up and down in position.

Through adopting above-mentioned technical scheme for the gasbag is heated the inflation back, can promote first magnetic path and slide along the spout, and then changes gradually first magnetic path, second magnetic path relative position between them.

Preferably, the magnetic poles of the first magnetic block and the second magnetic block are opposite, a first return spring is connected between the second magnetic block and the lower die, and the second magnetic block is attached to the surface of the core die.

Through adopting above-mentioned technical scheme for when first magnetic path is close to the second magnetic path at the removal in-process, can utilize magnetic force to adsorb the second magnetic path, when both keep away from each other, the second magnetic path can carry out automatic re-setting under first reset spring's elasticity effect, and strike the mandrel, makes the mandrel produce certain vibration, and then gets rid of the bubble in the hot melt raw materials, improves production quality.

Preferably, one end of the movable rod, which is positioned outside the lower die, is attached to the fixed plate, a second return spring is connected between the movable rod and the lower die, and an ejector rod connected to the upper end of the movable rod penetrates through the lower die and the core die.

By adopting the technical scheme, after the product is cooled and molded, the electric push rod is controlled to drive the lower die to move left, the movable rod and the ejector rod can be adjusted to stretch with the lower die, and then the ejector rod can eject the finished product in the core die, so that the die stripping is completed.

Preferably, the outer wall of piston piece is laminated with the inner wall in imbibition storehouse mutually, just be connected with the conveyer pipe of one-way circulation between imbibition storehouse and the stock solution storehouse, infusion hole has all been seted up to the inside between movable rod and the ejector pin, and the lateral wall of movable rod sets up the feed liquor hole that is linked together with infusion hole, and the feed liquor hole is one-way circulation structure, simultaneously infusion hole part is the inside that the heliciform embedding was installed in the lower mould.

Through adopting above-mentioned technical scheme for when movable rod and ejector pin carry out elastic stretching, can make the piston piece carry out reciprocating sliding in the inside in imbibition storehouse, and then make the imbibition storehouse can use the release agent in the automatic extraction liquid storage storehouse of conveyer pipe, and through the feed liquor hole input infusion hole, the release agent of carrying in the conveyer pipe can carry out the liquid cooling of certain degree to the lower mould simultaneously, does benefit to the quick heat dissipation of lower mould.

Preferably, the upper end of the ejector rod is provided with a spraying hole, the aperture of the spraying hole is smaller than the thickness of the bottom of the core mold, and a central shaft of a transfusion hole formed in the ejector rod is connected with a miniature impeller.

By adopting the technical scheme, when the release agent is conveyed through the infusion hole, the miniature impeller can drive the ejector rod to rotate under the action of liquid flow impact, so that the ejector rod can uniformly spray the release agent on the inner wall of the core mold by utilizing the spray hole, and subsequent demolding operation is facilitated.

Compared with the prior art, the utility model has the beneficial effects that: the automatic foam removing type injection mold capable of uniformly spraying the release agent can automatically and properly knock a core mold in the injection molding process, effectively remove bubbles in a hot melt material through vibration, and simultaneously can automatically spray the release agent in the mold closing process, so that the subsequent demolding operation is facilitated, the practicability is high, and the specific content is as follows;

1. the core die is provided with an air bag, a first magnetic block and a second magnetic block, when the die is used for injection molding, the temperature in the core die can be rapidly raised, so that the air in the air bag is heated, the air bag is expanded and deformed, the first magnetic block is further pushed to move, when the first magnetic block and the second magnetic block are close to each other, the second magnetic block can perform elastic displacement under the action of magnetic force, when the core die and the first magnetic block are based on the principle, the second magnetic block can automatically reset under the action of the elastic force of a first reset spring, the core die is further knocked, the core die is vibrated, bubbles in hot-melt raw materials are removed, and the injection molding quality of finished products is improved;

2. be provided with and inhale liquid storehouse and ejector pin, when the mould carries out the die sinking, the inside that the piston piece can follow the imbibition storehouse slides for the imbibition storehouse can be through the release agent in the conveyer pipe extraction stock solution storehouse, and when the compound die, the piston piece can be with inhaling the release agent in the liquid storehouse through the feed liquor hole during the infusion hole is crowded, and through spraying the hole blowout, realizes the automatic spraying of release agent, is convenient for follow-up drawing of patterns to finished product.

Drawings

FIG. 1 is a schematic main sectional view of the present invention;

FIG. 2 is a schematic perspective view of the movable rod and the carrier rod of the present invention;

FIG. 3 is a schematic perspective main sectional view of the movable rod and the carrier rod of the present invention;

FIG. 4 is a main sectional view of the lower mold of the present invention;

FIG. 5 is an enlarged view of the structure at A in FIG. 4 according to the present invention.

In the figure: 1. a fixing plate; 101. a chute; 2. an electric push rod; 3. a liquid storage bin; 4. a lower die; 5. a core mold; 6. an upper die; 7. an air bag; 8. a first magnetic block; 9. a second magnetic block; 10. a first return spring; 11. a liquid suction bin; 12. a movable rod; 13. a top rod; 14. a second return spring; 15. a piston plate; 16. a delivery pipe; 17. a transfusion hole; 18. a liquid inlet hole; 19. spraying holes; 20. a miniature impeller.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: an automatic defoaming injection mold capable of uniformly spraying a mold release agent comprises a fixing plate 1, an electric push rod 2, a lower mold 4, a core mold 5 and an upper mold 6, wherein the electric push rod 2 is fixedly installed on the outer side of the fixing plate 1, the lower mold 4 is fixedly installed at the end part of the electric push rod 2, the core mold 5 is embedded and installed in the center position of the lower mold 4, and the upper mold 6 is arranged on the outer side of the lower mold 4;

further comprising: the sliding groove 101 is formed in the inner side of the lower die 4, the air bag 7 is arranged on the inner side of the sliding groove 101, and the end part of the air bag 7 is connected with the first magnetic block 8; the second magnetic block 9 is movably arranged on the inner side of the lower die 4 and is used for knocking the core die 5; the liquid storage bin 3 is fixedly arranged on the outer side of the fixing plate 1 and used for storing a release agent; the liquid suction bin 11 is arranged on the inner side of the lower die 4, a movable rod 12 penetrates through the inner side of the liquid suction bin 11, an ejector rod 13 is connected to an upper end bearing of the movable rod 12, and a piston sheet 15 is fixedly arranged on the outer side of the movable rod 12.

The air bag 7 is arranged in an L-shaped structure, and the side wall of the upper end of the air bag 7 is attached to the core mould 5. The first magnet 8 connected with the lower end of the air bag 7 and the chute 101 form a sliding structure, and the positions of the first magnet 8 and the second magnet 9 are up-down corresponding. The magnetic poles of the first magnetic block 8 and the second magnetic block 9 are opposite, a first return spring 10 is connected between the second magnetic block 9 and the lower die 4, and the second magnetic block 9 is attached to the surface of the core mold 5, as shown in fig. 1 and 4-5, when the mold is injection-molded, the temperature of the core mold 5 is rapidly increased, thereby heating the air bag 7, causing the air bag 7 to expand and deform, the expanded air bag 7 can push the first magnetic block 8 to slide along the chute 101, the first magnetic block 8 and the second magnetic block 9 are close to each other, at the moment, the second magnetic block 9 can elastically stretch under the action of magnetic force, so as to be away from the core mold 5, when the first and second

magnetic blocks

8 and 9 are away from each other, the second magnetic block 9 is elastically restored by the elastic force of the first restoring spring 10, so that the core mold 5 is knocked, and the core mold 5 is vibrated to remove air bubbles in the raw material.

One end of the movable rod 12 positioned at the outer side of the lower die 4 is attached to the fixing plate 1, a second return spring 14 is connected between the movable rod 12 and the lower die 4, and an ejector rod 13 connected to the upper end of the movable rod 12 penetrates through the lower die 4 and the core die 5. The outer wall of piston piece 15 and the inner wall of imbibition storehouse 11 are laminated mutually, and be connected with the conveyer pipe 16 of one-way circulation between imbibition storehouse 11 and the stock solution storehouse 3, infusion hole 17 has all been seted up to the inside between movable rod 12 and ejector pin 13, and the feed liquor hole 18 that is linked together with infusion hole 17 is seted up to the lateral wall of movable rod 12, and feed liquor hole 18 is one-way circulation structure, and infusion hole 17 part is the heliciform embedding simultaneously and installs in the inside of lower mould 4. The upper end of the ejector rod 13 is provided with a spray hole 19, the aperture of the spray hole 19 is smaller than the bottom thickness of the core mold 5, and a micro impeller 20 is connected in a central shaft of a transfusion hole 17 formed in the ejector rod 13, as shown in fig. 1-4, after the raw material is cooled, the electric push rod 2 is controlled to drive the lower mold 4 and the upper mold 6 to open the mold, at this time, the movable rod 12 and the ejector rod 13 can be telescopically adjusted with the lower mold 4, so that the ejector rod 13 can eject the product formed on the inner side of the core mold 5, thereby realizing the mold release, at the same time, the movable rod 12 can drive the piston sheet 15 to slide along the inner side of the liquid absorption bin 11, so that the liquid absorption bin 11 can absorb the mold release agent in the liquid storage bin 3 through the delivery pipe 16, when the lower mold 4 is reset and closed, the piston sheet 15 can extrude the mold release agent absorbed in the liquid absorption bin 11 into the movable rod 12 and the transfusion hole 17 in the ejector rod 13 and is ejected through the spray hole 19, and at the micro impeller 20 can drive the ejector rod 13 to rotate under the action of liquid flow, thereby further improving the spraying range and effect of the release agent and facilitating the subsequent release work.

The working principle is as follows: when the automatic defoaming injection mold capable of uniformly spraying the release agent is used, firstly, as shown in fig. 1-5, the electric push rod 2 is controlled to drive the lower mold 4 and the upper mold 6 to close the mold, then injection molding is performed, at the moment, the air bag 7 absorbs heat to expand, and then the second magnetic block 9 automatically knocks the core mold 5 under the action of magnetic force and the elastic force of the first return spring 10, so that bubbles in raw materials at the inner side of the core mold 5 are removed through vibration, the production quality is improved, after a product is molded, the lower mold 4 and the upper mold 6 are controlled to open the mold, a finished product can be ejected and released by the ejector rod 13, and when the lower mold 4 and the upper mold 6 are closed again, the ejector rod 13 can uniformly spray the release agent on the inner wall of the core mold 5 through the spraying hole 19 formed in the side wall of the ejector rod 13, so as to complete a series of work.

Those not described in detail in this specification are well within the skill of the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims

1. An automatic defoaming injection mold capable of uniformly spraying a mold release agent comprises a fixing plate (1), an electric push rod (2), a lower mold (4), a core mold (5) and an upper mold (6), wherein the electric push rod (2) is fixedly installed on the outer side of the fixing plate (1), the lower mold (4) is fixedly installed at the end part of the electric push rod (2), the core mold (5) is embedded and installed in the central position of the lower mold (4), and the upper mold (6) is arranged on the outer side of the lower mold (4);

it is characterized by also comprising:

the sliding groove (101) is arranged on the inner side of the lower die (4), an air bag (7) is arranged on the inner side of the sliding groove (101), and the end part of the air bag (7) is connected with a first magnetic block (8);

the second magnetic block (9) is movably arranged on the inner side of the lower die (4) and is used for knocking the core die (5);

the liquid storage bin (3) is fixedly arranged on the outer side of the fixing plate (1) and used for storing a release agent;

inhale liquid storehouse (11), set up in the inboard of lower mould (4), the inboard of inhaling liquid storehouse (11) is run through and is provided with movable rod (12), just the upper end bearing of movable rod (12) is connected with ejector pin (13), and the outside of movable rod (12) is fixed and is provided with piston piece (15).

2. The automatic defoaming type injection mold capable of uniformly spraying release agent according to claim 1, characterized in that: the air bag (7) is arranged in an L-shaped structure, and the side wall of the upper end of the air bag (7) is attached to the core mold (5).

3. The automatic defoaming type injection mold capable of uniformly spraying release agent according to claim 2, characterized in that: the sliding structure is formed by a first magnetic block (8) and a sliding groove (101), which are connected with the lower end of the air bag (7), and the positions of the first magnetic block (8) and the second magnetic block (9) are vertically corresponding to each other.

4. The automatic defoaming type injection mold capable of uniformly spraying release agent according to claim 3, characterized in that: the magnetic poles of the first magnetic block (8) and the second magnetic block (9) are opposite, a first return spring (10) is connected between the second magnetic block (9) and the lower die (4), and the second magnetic block (9) is attached to the surface of the core die (5).

5. The automatic defoaming injection mold capable of uniformly spraying the release agent according to claim 1, characterized in that: one end of the movable rod (12) located on the outer side of the lower die (4) is attached to the fixing plate (1), a second reset spring (14) is connected between the movable rod (12) and the lower die (4), and an ejector rod (13) connected to the upper end of the movable rod (12) penetrates through the lower die (4) and the core die (5).

6. The automatic defoaming injection mold capable of uniformly spraying the release agent according to claim 1, characterized in that: the outer wall of piston piece (15) is laminated with the inner wall in imbibition storehouse (11) mutually, just be connected with conveyer pipe (16) of one-way circulation between imbibition storehouse (11) and stock solution storehouse (3), infusion hole (17) have all been seted up to the inside between movable rod (12) and ejector pin (13), and the lateral wall of movable rod (12) set up feed liquor hole (18) that are linked together with infusion hole (17), and feed liquor hole (18) are one-way circulation structure, simultaneously infusion hole (17) part is the inside that the heliciform embedding was installed in lower mould (4).

7. The automatic defoaming injection mold capable of uniformly spraying the release agent according to claim 1, characterized in that: the upper end of the ejector rod (13) is provided with a spraying hole (19), the aperture of the spraying hole (19) is smaller than the bottom thickness of the core mold (5), and a micro impeller (20) is connected with a middle shaft of a transfusion hole (17) formed in the ejector rod (13).