CN114228033A

CN114228033A - Mould for lost foam

Info

Publication number: CN114228033A
Application number: CN202111581833.8A
Authority: CN
Inventors: 郑国威; 龙钊; 邵长波; 宫清丰; 朱业英; 厉凌峰; 范卸真
Original assignee: Jinhua Wanliyang Machinery Manufacturing Co ltd
Current assignee: Jinhua Wanliyang Machinery Manufacturing Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-03-25
Anticipated expiration: 2041-12-22
Also published as: CN114228033B

Abstract

The invention relates to a lost foam mold convenient to take. A lost foam mold is characterized by comprising a limiting block, a mold body and a driver, wherein the limiting block is provided with a first accommodating cavity with an upward opening, the mold body moves between the first accommodating cavity and the external space under the action of the driver, the mold body comprises a lifting plate, a movable plate is hinged to the edge of the lifting plate, a fixed plate is arranged on the upper side of the lifting plate, a structural part with an enclosed cross section is formed by the fixed plate and the movable plate, and the structural part is upward opened and is provided with a second accommodating cavity; when the mould body is located the first intracavity that holds, the upset of stopper inner wall restriction fly leaf. The invention has the advantage of convenient taking out of the lost foam.

Description

Mould for lost foam

Technical Field

The invention relates to a lost foam mold convenient to take.

Background

The lost foam is a mold made of foam, and usually, foamed foam particles are poured into the mold, then the mold is put into a vacuum environment and the foam is subjected to high-temperature and high-pressure extrusion treatment, and finally the formed lost foam needs to be taken out of the mold. Because the fit degree between disappearance mould and mould is higher, the palm is not convenient for stretch into, can lead to the inconvenience of getting the mould.

Disclosure of Invention

The invention aims to provide a lost foam mold convenient to take.

In order to achieve the purpose, the invention adopts the following technical scheme: a lost foam mold comprises a limiting block, a mold body and a driver, wherein the limiting block is provided with a first accommodating cavity with an upward opening, the mold body moves between the first accommodating cavity and the external space under the action of the driver, the mold body comprises a lifting plate, a movable plate is hinged to the edge of the lifting plate, a fixed plate is arranged on the upper side of the lifting plate, the fixed plate and the movable plate form a structural part with a surrounding cross section, and the structural part is upward opened and is provided with a second accommodating cavity; when the mould body is located the first intracavity that holds, the upset of stopper inner wall restriction fly leaf.

After the lost foam is formed, the die body is jacked to the upper side of the limiting block through the driver, and the movable plate is overturned towards the outer side under the action of manpower or dead weight, so that the side surface of the structure is opened, and the lost foam is convenient to take out. When the die body is positioned in the first accommodating cavity, the limiting block is used for limiting the movable plate to turn over; after the mould body stretches out to first chamber that holds, the stopper is used for supporting the fly leaf. The driver can adopt any existing linear driver capable of realizing linear reciprocating motion of the lifting plate, such as an electric push rod, an air cylinder, a hydraulic cylinder and the like.

As preferred, the driver sets up in the stopper downside, and the stopper is equipped with and runs through from top to bottom in order to hold the guiding hole of chamber intercommunication with first, and the driver output is equipped with the lifter, and the lifter upper end is passed the guiding hole and is fixed with the lifter plate. Above-mentioned setting is so that the first chamber that holds can set up littleer, only need hold chamber department simultaneously and carry out the evacuation operation, only need make first chamber department that holds carry out high temperature high pressure treatment, can avoid the driver impaired.

Preferably, the lower end face of the movable plate and the lower end face of the lifting plate are provided with hinges for hinging. When the movable plate is turned upwards, the lower end of the inner surface of the movable plate is contacted with the side wall of the bottom plate so as to limit the movable plate from further turning.

Preferably, the lifting plate is a square plate, the four movable plates comprise two first movable plates and two second movable plates, the first movable plates are located between the end portions of the two second movable plates, a first positioning groove and a first positioning protrusion extending into the first positioning groove are arranged on the surface of the first movable plates adjacent to the second movable plates, and when the first movable plates are perpendicular to the second movable plates, the first positioning protrusion extends into the first positioning groove.

The first movable plate is turned firstly, then the second movable plate is turned, the first positioning protrusion extends into the first positioning groove, the first movable plate and the second movable plate are perpendicular to each other, the movement of the first movable plate is limited at least through mutual limiting of the movable plates, and when the first positioning protrusion is matched with the first positioning groove, the limiting of the second movable plate can be realized. The movable plates are mutually limited, so that the volume and the shape of the containing cavity formed by the structural parts are prevented from meeting the requirements.

Preferably, the fixed plate comprises a first fixed plate and a second fixed plate, the first fixed plate is provided with a first matching groove which is opened upwards and penetrates through the side walls on the two opposite sides, the second fixed plate is provided with a second matching groove which is opened downwards and penetrates through the side walls on the two opposite sides, and the end part of the fixed plate is close to the inner surface of the movable plate or the inner surface of the limiting block.

The arrangement is such that the fixed plate may not be fixed to the lifting plate but clamped between the movable plates to facilitate use of the invention. The number and size of the first fixing plate and the second fixing plate can be selected according to actual requirements, so that a plurality of structural parts can be formed on the lifting plate, and the forming of a greater number of lost molds can be realized.

Preferably, the fixed plate and the movable plate or the limiting block are provided with a second positioning groove and a second positioning protrusion extending into the second positioning groove at the adjacent surface. The fixed plate is matched with the movable plate or the limiting block to further limit the movement of the fixed plate, so that the volume and the shape of the containing cavity formed by the structural part meet the requirements. Meanwhile, the arrangement ensures that the upper end surface of the bottom plate does not need to be processed with a hole groove for limiting, so that the upper end surface of the bottom plate is inconvenient to be in a planar shape, and the structure of various structural parts is convenient.

Preferably, the movable plate and the limiting block are provided with a third positioning groove and a third positioning protrusion extending into the third positioning groove on the surfaces adjacent to each other. Through setting up third location arch and third constant head tank to the rocking of restriction fly leaf. Wherein, the cooperation of third location arch and third constant head tank can also be used for the direction when the mould body goes up and down.

Preferably, the section of the limiting block deviated from the lower end is in a surrounding shape. The mutual positioning between the limiting block and the die body is facilitated through the arrangement.

Preferably, the stopper constitutes there is the cooling cavity, and the cooling cavity is including being used for around the first cavity in the mould body circumference outside and being located the second cavity of mould body downside, and the stopper upper end is equipped with the import with the cooling cavity intercommunication, and the stopper lower extreme is equipped with the export with the cooling cavity intercommunication.

Preferably, the driver is fixed on the lower surface of the limiting block, and the limiting block is supported on the ground through the support.

The invention has the advantage of convenient taking out of the lost foam.

Drawings

FIG. 1 is a schematic view of a structure of the present invention in use;

FIG. 2 is a schematic view of another embodiment of the present invention in use;

FIG. 3 is an exploded view of the present invention;

FIG. 4 is a cross-sectional view of the stop block of the present invention.

Detailed Description

The invention is further described below with reference to the figures and specific embodiments.

As shown in fig. 1 to 3, the invention discloses a lost foam mold, which comprises a limiting block 1, a mold body and a driver 2, wherein the limiting block 1 is provided with a first accommodating cavity 10 with an upward opening, the driver 2 of the embodiment is an air cylinder, the driver 2 is fixed on the lower surface of the limiting block 1, the limiting block 1 is supported on the ground through a support 11, the limiting block 1 is provided with a guide hole 12 which penetrates through the limiting block 1 up and down to be communicated with the first accommodating cavity 10, the output end of the driver 2 is provided with a lifting rod, the upper end of the lifting rod penetrates through the guide hole 12 and is fixed with the mold body, and the mold body moves between the inside of the first accommodating cavity 10 and the outside space under the action of the driver 2.

Shown by fig. 4, the cross-section that stopper 1 deviates lower extreme department is the enclosure and closes the shape, and stopper 1 constitutes has the cooling cavity, and the cooling cavity is including being used for around the first cavity 13 in the mould body circumference outside and being located the second cavity 14 of mould body downside, and stopper 1 upper end is equipped with the import 15 with the cooling cavity intercommunication, and stopper 1 lower extreme is equipped with the export 16 with the cooling cavity intercommunication.

As shown in fig. 1 to 3, the mold body includes a square lifting plate 3, the upper end of the lifting rod is fixed to the lifting plate 3, the edges of the periphery of the lifting plate 3 are hinged to movable plates 4, a fixed plate 5 is arranged on the upper side of the lifting plate 3, the fixed plate 5 and the movable plates 4 form a structural portion 30 with a surrounding cross section, and the structural portion 30 is opened upwards and is formed with a second accommodating cavity. When the die body is positioned in the first accommodating cavity 10, the inner wall of the limiting block 1 limits the movable plate 4 to turn over; when the mold body is located outside the first accommodating cavity 10, the upper end surface of the limiting block 1 can support the movable plate 4. Wherein, the hinge 31 for hinging is arranged at the lower end surface of the movable plate 4 and the lower end surface of the lifting plate 3. Wherein, the adjacent surface of the movable plate 4 and the limiting block 1 is provided with a third positioning groove 17 and a third positioning protrusion 45 extending into the third positioning groove 17, and the third positioning protrusion 45 is strip-shaped and disposed on the outer surface of the movable plate 4.

The four movable plates 4 include two first movable plates 41 and two second movable plates 42, the first movable plate 41 is located between ends of the two second movable plates 42, a first positioning groove 43 and a first positioning protrusion 44 extending into the first positioning groove 43 are disposed on a surface of the first movable plate 41 adjacent to the second movable plate 42, and when the first movable plate 41 is perpendicular to the second movable plate 42, the first positioning protrusion 44 extends into the first positioning groove 43.

The four fixing plates 5 include two first fixing plates 51 and two second fixing plates 52 and form a # -shaped structure, the first fixing plates 51 are provided with first matching grooves 53 which are upwardly opened and penetrate through the side walls at two opposite sides, the second fixing plates 52 are provided with second matching grooves 54 which are downwardly opened and penetrate through the side walls at two opposite sides, the end portions of the fixing plates 5 are close to the inner surface of the movable plate 4, and the surfaces of the fixing plates 5 and the movable plate 4 which are close to each other are provided with second positioning grooves 40 and second positioning protrusions 50 which extend into the second positioning grooves 40.

After the lost foam is molded, cold water is injected into the limiting block to cool the mold body and the lost foam, the mold body is jacked through a driver after cooling, then the second movable plate and the first movable plate are turned over in sequence, and finally the lost foam is taken out and then subsequent processes such as trimming, paint drying and the like are carried out. The invention has the advantage of convenient taking out of the lost foam.

Claims

1. A lost foam mold is characterized by comprising a limiting block, a mold body and a driver, wherein the limiting block is provided with a first accommodating cavity with an upward opening, the mold body moves between the first accommodating cavity and the external space under the action of the driver, the mold body comprises a lifting plate, a movable plate is hinged to the edge of the lifting plate, a fixed plate is arranged on the upper side of the lifting plate, a structural part with an enclosed cross section is formed by the fixed plate and the movable plate, and the structural part is upward opened and is provided with a second accommodating cavity; when the die body is positioned in the first accommodating cavity, the inner wall of the limiting block limits the movable plate to turn over.

2. A mold for a lost foam according to claim 1, wherein the actuator is provided at a lower side of the stopper, the stopper is provided with a guide hole penetrating vertically to communicate with the first accommodating chamber, an output end of the actuator is provided with a lift rod, and an upper end of the lift rod penetrates through the guide hole and is fixed to the lift plate.

3. A mold for a lost foam according to claim 1, wherein hinges for hinge are provided at the lower end surface of the movable plate and the lower end surface of the lifting plate.

4. A mold for a disappearing mold as claimed in claim 1, wherein the lifting plate is a square plate, the lifting plate is provided with one of the movable plates around, and the four movable plates include two first movable plates and two second movable plates, the first movable plate is located between the ends of the two second movable plates, the surfaces of the first movable plates adjacent to the second movable plates are provided with first positioning grooves and first positioning protrusions extending into the first positioning grooves, and when the first movable plates are perpendicular to the second movable plates, the first positioning protrusions extend into the first positioning grooves.

5. The mold for a lost foam according to claim 1 or 4, wherein the fixing plate comprises a first fixing plate provided with a first fitting groove opened upward and penetrating the opposite side walls and a second fixing plate provided with a second fitting groove opened downward and penetrating the opposite side walls, the fixing plate end being adjacent to the inner surface of the movable plate or the inner surface of the stopper.

6. A mold for a lost foam according to claim 5, wherein the fixed plate and the movable plate or the stopper have second positioning grooves and second positioning protrusions extending into the second positioning grooves on their surfaces adjacent to each other.

7. A mold for a lost foam according to claim 1, wherein the movable plate and the stopper have third positioning grooves and third positioning protrusions extending into the third positioning grooves on their surfaces adjacent to each other.

8. A mold for a lost foam according to claim 1, wherein the stopper has a cross section deviating from the lower end thereof in a surrounding shape.

9. A lost foam mold according to claim 1, wherein the stopper is formed with a cooling cavity, the cooling cavity includes a first cavity for surrounding the outer side of the mold body in the circumferential direction and a second cavity located at the lower side of the mold body, an inlet communicating with the cooling cavity is provided at the upper end of the stopper, and an outlet communicating with the cooling cavity is provided at the lower end of the stopper.

10. A mold for a lost foam according to claim 2, wherein said actuator is fixed to a lower surface of a stopper, and said stopper is supported on the ground by a bracket.