CN111974975A

CN111974975A - Shedder is used in metal casting

Info

Publication number: CN111974975A
Application number: CN202010716482.6A
Authority: CN
Inventors: 余洪芹
Original assignee: Baoying Xinlong Foundry Co ltd
Current assignee: Baoying Xinlong Foundry Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2020-11-24

Abstract

The invention relates to the technical field of metal injection molds, in particular to a demolding device for metal casting, which comprises a supporting plate, wherein a lower mold is fixedly connected to the middle position of the top end of the supporting plate, a plurality of forming shells are arranged on the inner side of the lower mold in parallel, the middle positions of the forming shells are hollow, a plurality of ejector rods are correspondingly attached to the end parts of the forming shells, the ejector rods are in sliding connection with the supporting plate, the bottom ends of the ejector rods are fixedly connected with a bottom plate, the bottom end of the bottom plate is provided with a supporting mechanism, two sides of the supporting plate are provided with elastic mechanisms, a top plate is arranged above the supporting plate, the top end of the top plate is communicated with a material filling port, the bottom end of the top plate is fixedly connected with an upper mold, and one end of the material filling port is communicated with the upper, is convenient for use.

Description

Shedder is used in metal casting

Technical Field

The invention relates to the technical field of metal injection molds, in particular to a demolding device for metal casting.

Background

The metal casting is characterized in that part of metal is smelted into liquid meeting certain requirements and poured into a casting mold, the liquid is cooled, solidified and cleaned to obtain a preset shape and size, the casting is one of basic processes of modern mechanical manufacturing industry, the poured liquid needs to be contained in the mold by a shell, the existing demolding device is complex in structure and inconvenient to demold, and therefore the demolding device for metal casting is provided.

Disclosure of Invention

The invention aims to solve the problems of complex structure and inconvenient demoulding in the prior art, and provides a demoulding device for metal casting.

In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a demoulding device for metal casting comprises a supporting plate, a lower mould is fixedly connected at the middle position of the top end of the supporting plate, a plurality of forming shells are arranged in parallel on the inner side of the lower die, the middle positions of the forming shells are hollowed out, a plurality of ejector rods are correspondingly attached to the end part of the molding shell, the ejector rods are connected with the support plate in a sliding way, the bottom end of the ejector rod is fixedly connected with a bottom plate, the bottom end of the bottom plate is provided with a supporting mechanism, two sides of the supporting plate are provided with elastic mechanisms, a top plate is arranged above the supporting plate, the top end of the top plate is communicated with a feeding port, the bottom end of the top plate is fixedly connected with an upper die, one end of the injection port is communicated with the upper die, the upper die is provided with a groove matched with the lower die, the two sides of the top plate are provided with telescopic mechanisms, and one side of the supporting mechanism is provided with a driving mechanism.

Preferably, the supporting mechanism comprises a supporting table arranged at the bottom end of the bottom plate, and supporting columns are arranged at four corners of the bottom end of the supporting table respectively.

Preferably, the elastic mechanism comprises a limiting column which is connected to the inner side of the supporting plate in a sliding manner, a spring is sleeved on the outer side of the limiting column close to the lower part of the supporting plate, and the limiting column is fixedly connected with the bottom plate.

Preferably, the telescopic mechanism comprises a fixed column which is inserted in one side of the top plate in a sliding manner, a threaded rod is inserted in threads on the other side of the top plate, the fixed column is fixedly installed at the top end of the supporting table, the threaded rod is rotatably installed at the top end of the supporting table, limiting discs are fixedly arranged at the top ends of the fixed column and the threaded rod, and limiting rings are fixedly sleeved on the outer sides of the fixed column and the threaded rod at the corresponding positions of the lower die.

Preferably, actuating mechanism includes the motor, the outside cover of motor is equipped with the motor cabinet, fixed connection between motor cabinet and the brace table, the output of motor runs through brace table and tip and is connected with the threaded rod.

Preferably, the outer side of the ejector rod is sleeved with a scraper in a sliding mode, and a vertical plate extends from the end portion of the scraper.

Compared with the prior art, the invention has the following beneficial effects: through setting up threaded rod, spring, ejector pin, can the rapid demoulding, drive threaded rod makes the roof die-casting downwards, goes up mould and bed die and forms a sealed space, pours into liquid into from the sprue into, treats the shaping back, and drive threaded rod is that the roof rises, pushes down the backup pad, and the ejector pin corresponds the foundry goods in the fretwork department extrusion casing in the shaping casing, can let shaping casing and foundry goods separation reach the purpose of rapid demoulding.

The scraper is arranged to prevent the surface of the ejector rod from being stuck with attachments, so that the demolding efficiency is influenced.

Drawings

FIG. 1 is a schematic structural view of a mold release device for metal casting according to the present invention;

FIG. 2 is a partial cross-sectional view of a metal casting knockout apparatus of the present invention;

FIG. 3 is an enlarged view A of FIG. 2 of a mold release device for metal casting according to the present invention.

In the figure: 1. a material injection port; 2. an upper die; 3. a top plate; 4. molding a shell; 5. a limiting disc; 6. a threaded rod; 7. a lower die; 8. fixing a column; 9. a limiting column; 10. a support plate; 11. a spring; 12. a top rod; 13. a support pillar; 14. a base plate; 15. a squeegee; 16. a motor; 17. a motor base; 18. a support table; 19. a vertical plate; 20. a limit ring.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

As shown in figures 1-3, a demolding device for metal casting comprises a support plate 10, a lower mold 7 is fixedly connected to the middle position of the top end of the support plate 10, a plurality of forming shells 4 are parallelly arranged on the inner side of the lower mold 7, the middle positions of the forming shells 4 are hollow, a plurality of ejector rods 12 are correspondingly attached to the end portions of the forming shells 4, the ejector rods 12 are in sliding connection with the support plate 10, a bottom plate 14 is fixedly connected to the bottom ends of the ejector rods 12, a supporting mechanism is arranged at the bottom end of the bottom plate 14 and comprises a supporting table 18 arranged at the bottom end of the bottom plate 14, supporting columns 13 are respectively arranged at four corners of the bottom end of the supporting table 18, elastic mechanisms are arranged on two sides of the support plate 10, a top plate 3 is arranged above the support plate 10, a filling port 1 is communicated with the top end of the top plate 3, an upper mold 2, the upper die 2 is provided with a groove matched with the lower die 7 correspondingly, the two sides of the top plate 3 are provided with telescopic mechanisms, and one side of the supporting mechanism is provided with a driving mechanism; through setting up elastic mechanism to support bed die 7, cause ejector pin 12 top and the inside bottom level laminating of shaping casing 4, after bed die 7 folds with last mould 2, through the molten metal that sprue 1 was smelted to shaping casing 4 inside, after finishing moulding plastics, can be ejecting with the injection molding through ejector pin 12.

The elastic mechanism comprises a limiting column 9 which is connected to the inner side of the supporting plate 10 in a sliding manner, a spring 11 is sleeved below the outer side of the limiting column 9 close to the supporting plate 10, and the limiting column 9 is fixedly connected with the bottom plate 14; through setting up spacing post 9 and spring 11 to can carry out stable support to bed die 7, after moulding finishes, through pressing backup pad 10, thereby can drive bed die 7 and remove, cause ejector pin 12 to carry out the drawing of patterns with the inside injection molding of shaping casing 4.

The telescopic mechanism comprises a fixed column 8 which is inserted on one side of the top plate 3 in a sliding manner, a threaded rod 6 is inserted on the other side of the top plate 3 in a threaded manner, the fixed column 8 is fixedly installed at the top end of the supporting table 18, the threaded rod 6 is rotatably installed at the top end of the supporting table 18, the top ends of the fixed column 8 and the threaded rod 6 are both fixedly provided with a limiting disc 5, and the outer sides of the fixed column 8 and the threaded rod 6 at the corresponding positions of the lower die 7; through setting up threaded rod 6 and fixed column 8 to supporting roof 3, being convenient for simultaneously drive upper die 2 and bed die 7 fold, make things convenient for follow-up mould, spacing dish 5 is spacing to fixed column 8 and threaded rod 6, prevents roof 3 separation, and sets up spacing ring 20 and can avoid upper die 2 to drive bed die 7, with this upper die 2 spacing.

The driving mechanism comprises a motor 16, a motor seat 17 is sleeved on the outer side of the motor 16, the motor seat 17 is fixedly connected with a supporting table 18, the output end of the motor 16 penetrates through the supporting table 18, and the end part of the motor is connected with the threaded rod 6; the motor 16 is connected with an external power supply to drive the threaded rod 6 to rotate, so that the top plate 3 is driven to move up and down.

The outer sides of the mandrils 12 are sleeved with scrapers 15 in a sliding manner, and vertical plates 19 extend from the ends of the scrapers 15; the scraper 15 is used for scraping off attachments outside the ejector rod 12, so that the later-stage continuous use is facilitated, and the vertical plate 19 is used for being held by a user to increase the contact area.

When the rapid demoulding device works, a user communicates the motor 16 with an external power supply, the threaded rod 6 and the top plate 3 are driven to move downwards, the upper die 2 is attached to the corresponding position of the lower die 7, melted metal is poured into the upper die 2 from the injection port 1, and then liquid is conveyed into the forming shell 4 to be moulded, when the forming is completed, the threaded rod 6 and the top plate 3 are driven to move upwards to be separated from the lower die 7, the supporting plate 10 is pressed to enable the ejector rods 12 to abut against the hollow part of the forming shell 4, formed castings are ejected out, and the forming shell 4 is rapidly separated from the castings, so that the rapid demoulding effect is achieved.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The demolding device for metal casting comprises a supporting plate (10) and is characterized in that a lower mold (7) is fixedly connected to the middle position of the top end of the supporting plate (10), a plurality of forming shells (4) are arranged on the inner side of the lower mold (7) in parallel, the middle positions of the forming shells (4) are hollowed out, a plurality of ejector rods (12) are correspondingly attached to the end portions of the forming shells (4), the ejector rods (12) are slidably connected with the supporting plate (10), a bottom plate (14) is fixedly connected to the bottom ends of the ejector rods (12), a supporting mechanism is arranged at the bottom end of the bottom plate (14), elastic mechanisms are arranged on two sides of the supporting plate (10), a top plate (3) is arranged above the supporting plate (10), the top end of the top plate (3) is communicated with a material injection port (1), an upper mold (2) is fixedly connected to the bottom end of the top plate (3, the injection molding machine is characterized in that one end of the injection port (1) is communicated with the upper mold (2), the upper mold (2) is provided with a groove corresponding to the lower mold (7) in a matched mode, the two sides of the top plate (3) are provided with telescopic mechanisms, and one side of the supporting mechanism is provided with a driving mechanism.

2. The metal forging die release device of claim 1, wherein the support mechanism comprises a support table (18) disposed at the bottom end of the base plate (14), and support columns (13) are disposed at four corners of the bottom end of the support table (18).

3. The demolding device for metal forging as recited in claim 1, wherein the elastic mechanism comprises a limiting column (9) slidably connected to the inner side of the support plate (10), a spring (11) is sleeved on the outer side of the limiting column (9) close to the lower part of the support plate (10), and the limiting column (9) is fixedly connected with the bottom plate (14).

4. The metal forging demolding device as claimed in claim 2, wherein the telescopic mechanism comprises a fixed column (8) slidably inserted on one side of the top plate (3), a threaded rod (6) is inserted in the other side of the top plate (3) in a threaded manner, the fixed column (8) is fixedly installed at the top end of the supporting table (18), the threaded rod (6) is rotatably installed at the top end of the supporting table (18), limiting discs (5) are fixedly arranged at the top ends of the fixed column (8) and the threaded rod (6), and limiting rings (20) are fixedly sleeved on the outer sides of the fixed column (8) and the threaded rod (6) at corresponding positions of the lower mold (7).

5. The metal forging demolding device as claimed in claim 4, wherein the driving mechanism comprises a motor (16), a motor base (17) is sleeved on the outer side of the motor (16), the motor base (17) is fixedly connected with the supporting platform (18), and the output end of the motor (16) penetrates through the supporting platform (18) and is connected with the threaded rod (6) at the end.

6. The metal forging die release device as claimed in claim 1, wherein the ejector pins (12) are slidably sleeved with scrapers (15) on the outer sides thereof, and risers (19) extend from the ends of the scrapers (15).