CN214349433U

CN214349433U - Mould with injection core frame

Info

Publication number: CN214349433U
Application number: CN202023137107.0U
Authority: CN
Inventors: 严勇光; 麦百祥; 汪军
Original assignee: Shenzhen Minghui Precision Mould Plastic Technology Co ltd
Current assignee: Shenzhen Minghui Precision Mould Plastic Technology Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-10-08
Anticipated expiration: 2030-12-23

Abstract

The utility model discloses a mould with an injection core frame, which comprises an upper mould and a lower mould, wherein the lower mould is arranged above the upper mould, the lower surface of the upper mould and the upper surface of the lower mould are both provided with cavities, one group of the cavities are internally provided with a core body, two groups of the cavities are internally provided with core frame components, two groups of the cavities are internally provided with four groups of grooves, each core frame component comprises four groups of concave plates, the four groups of concave plates are respectively and fixedly arranged in the four groups of grooves, the upper surface of the bottom in each concave plate is fixedly provided with a first spring, the top end of the first spring is fixedly connected with a sliding plate, the core body is supported and fixed by the core frame components arranged in the cavities of the upper mould and the lower mould, so that the core body is not deformed by the instantaneous impact and pressure of pouring molten steel, and the situation that the position of a ceramic core is deviated due to the instantaneous impact and pressure of the molten steel is effectively prevented, the obtained casting finished product has small deformation and the product percent of pass is improved.

Description

Mould with injection core frame

Technical Field

The utility model relates to the technical field of molds, specifically a mold with injection core frame.

Background

As is known, investment casting, also known as lost wax casting, is a common practice for precision casting: selecting proper investment material (such as paraffin) to manufacture an investment; repeatedly dipping refractory paint and spreading refractory sand on the fired mold, hardening the mold shell and drying; dissolving the internal melting mold to obtain a cavity; firing the shell to achieve sufficient strength, burning off residual investment material, and casting the desired metal material; and (3) solidifying and cooling, removing sand after shelling, and casting from the existing precision casting complex core mould, wherein the core is easy to deviate due to instant impact and pressure of casting molten steel due to lack of a core frame, so that a casting finished product is deformed, the casting defect rate is high, the size deviation of a die casting is caused, and simultaneously, the defects of looseness, shrinkage cavity and the like are easily caused due to overhigh temperature of the core.

To this end, it is desirable to provide a mold with an injection core holder to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mould with injection core frame is provided with core frame subassembly, supports fixedly to the core body, makes it not receive pouring molten steel impact and pressure in the twinkling of an eye and warp, effectively prevents to make the condition that the skew takes place for ceramic core position because the molten steel impacts and pressure in the twinkling of an eye to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a mold with an injection core frame comprises an upper mold and a lower mold, wherein the lower mold is arranged above the upper mold, cavities are formed in the lower surface of the upper mold and the upper surface of the lower mold, a mold core body is arranged in one cavity, core frame assemblies are arranged in two groups of cavities, four groups of grooves are formed in the two groups of cavities, each core frame assembly comprises four concave plates, the four groups of concave plates are fixedly arranged in the four groups of grooves respectively, a first spring is fixedly arranged on the upper surface of the bottom in the concave plate, a sliding plate is fixedly connected to the top end of the first spring and is slidably connected in the concave plate, a connecting plate is arranged at the top of the concave plate, a support is fixedly arranged at the middle position of the upper surface of the connecting plate, two groups of clamping columns are slidably connected to the lower surface of the connecting plate, and the two groups of clamping columns are clamped on two sides in the concave plate, and the lower surfaces of the two groups of clamping columns are abutted against the upper surface of the sliding plate, and a second spring is connected between the two groups of clamping columns.

Preferably, the upper die upper surface is provided with a second fixing plate, the lower die lower surface is provided with a first fixing plate, the length, the thickness and the width of the first fixing plate and the second fixing plate are equal, and the length of the first fixing plate and the length of the second fixing plate are greater than the length of the upper die and the length of the lower die.

Preferably, the upper surface of the first fixing plate is fixedly provided with four groups of guide pillars, the four groups of guide pillars are respectively and fixedly arranged at four corners of the upper surface of the first fixing plate, and the top ends of the four groups of guide pillars are fixedly connected to four corners of the lower surface of the second fixing plate.

Preferably, the hydraulic cylinder is fixedly mounted at the top of the first fixing plate, the output rod end of the hydraulic cylinder penetrates through and extends to one side of the lower surface of the second fixing plate, and the output rod end of the hydraulic cylinder is fixedly connected with the upper surface of the upper die.

Preferably, the first springs are arranged into three groups, and the top ends of the three groups of first springs are fixedly connected with the lower surface of the sliding plate.

Preferably, the two ends of the sliding plate are fixedly connected with sliding blocks, sliding grooves are formed in the two sides of the concave plate, and the sliding blocks are connected in the two sliding grooves in a sliding mode.

Preferably, it is two sets of the card post all sets up to L shape structure, and two sets of the equal fixedly connected with card post slider in card post top, just the connecting plate spout has been seted up to the connecting plate lower surface, and two sets of equal sliding connection of card post slider is in the connecting plate spout.

Preferably, one end, far away from the connecting plate, of the support is clamped on the outer surface of the mold core body, and one end, far away from the connecting plate, of the support is provided with a semicircular clamping groove.

Preferably, two sets of equal fixedly connected with hollow post in card post one side, just second spring both ends are fixed mounting respectively in two sets of hollow posts.

Preferably, two sets of hollow post all sets up to one end open-ended cylindrical structure, and two sets of equal fixed mounting in hollow post one side has the pull ring, and two sets of the pull ring all sets up to annular pull ring.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses an all be provided with the core frame subassembly in the die cavity of last mould and lower mould, support fixedly to the core body, make it not receive pouring molten steel impact in the twinkling of an eye and pressure and warp, effectively prevent because the molten steel impacts in the twinkling of an eye and pressure and make the condition that the skew takes place for ceramic core position, the foundry goods finished product that obtains warp for a short time, improves the product percent of pass.

Drawings

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

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is an enlarged schematic view of the structure of FIG. 1;

fig. 4 is a schematic structural view of the core frame assembly of the present invention.

In the figure: 1. a first fixing plate; 2. a second fixing plate; 3. an upper die; 4. a lower die; 5. a hydraulic cylinder; 6. a core body; 7. a cavity; 8. a core frame assembly; 9. a groove; 10. a concave plate; 1001. a chute; 11. a first spring; 12. a chute; 13. a slider; 14. a slide plate; 15. a connecting plate; 16. a support; 17. clamping the column; 18. a second spring; 19. a hollow column; 20. a pull ring; 21. and (6) a guide pillar.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a mould with a jet core frame comprises an upper mould 3 and a lower mould 4, wherein the lower mould 4 is arranged above the upper mould 3, a second fixing plate 2 is arranged on the upper surface of the upper mould 3, a first fixing plate 1 is arranged on the lower surface of the lower mould 4, the length, the thickness and the width of the first fixing plate 1 and the second fixing plate 2 are equal, the length of the first fixing plate 1 and the length of the second fixing plate 2 are both larger than the length of the upper mould 3 and the length of the lower mould 4, and the first fixing plate 1 and the second fixing plate 2 are arranged for supporting and fixing the upper mould 3 and the lower mould 4; the guide posts 21 are fixedly arranged on the upper surface of the first fixing plate 1, the guide posts 21 are arranged into four groups, the four groups of guide posts 21 are respectively and fixedly arranged at four corners of the upper surface of the first fixing plate 1, the top ends of the four groups of guide posts 21 are respectively and fixedly connected to four corners of the lower surface of the second fixing plate 2, and the guide posts 21 are arranged to play a role in guiding and positioning, so that the stable and reliable motion of the die mechanism is ensured; a hydraulic cylinder 5 is fixedly mounted at the top of the first fixing plate 1, an output rod end of the hydraulic cylinder 5 penetrates through and extends to one side of the lower surface of the second fixing plate 2, the output rod end of the hydraulic cylinder 5 is fixedly connected with the upper surface of the upper die 3, and the hydraulic cylinder 5 is arranged for driving the upper die 3 to descend;

the lower surface of the upper die 3 and the upper surface of the lower die 4 are both provided with cavities 7, a core body 6 is arranged in one cavity 7, core frame assemblies 8 are arranged in two cavities 7, four groups of grooves 9 are arranged in two cavities 7, each core frame assembly 8 comprises concave plates 10, the concave plates 10 are arranged into four groups, the four groups of concave plates 10 are respectively and fixedly arranged in the four groups of grooves 9, first springs 11 are fixedly arranged on the upper surface of the bottom in the concave plates 10, the first springs 11 are arranged into three groups, the top ends of the three groups of first springs 11 are all fixedly connected with the lower surface of the sliding plate 14, and the sliding plate 14 is more stably connected by the three groups of first springs 11; the two ends of the sliding plate 14 are fixedly connected with sliding blocks 13, the two sides in the concave plate 10 are provided with sliding grooves 12, the two groups of sliding blocks 13 are respectively connected in the two groups of sliding grooves 12 in a sliding manner, and a structure that the sliding grooves 12 are matched with the sliding blocks 13 is formed, so that the sliding plate 14 can slide more smoothly;

the top end of the first spring 11 is fixedly connected with a sliding plate 14, the sliding plate 14 is connected in the concave plate 10 in a sliding mode, the top of the concave plate 10 is provided with a connecting plate 15, a support 16 is fixedly mounted at the middle position of the upper surface of the connecting plate 15, the lower surface of the connecting plate 15 is connected with two groups of clamping columns 17 in a sliding mode, the two groups of clamping columns 17 are clamped on two sides in the concave plate 10, the lower surfaces of the two groups of clamping columns 17 are in contact with the upper surface of the sliding plate 14, the two groups of clamping columns 17 are arranged to be L-shaped structures, clamping column sliding blocks are fixedly connected to the top ends of the two groups of clamping columns 17, a connecting plate sliding groove is formed in the lower surface of the connecting plate 15, the two groups of clamping column sliding blocks are connected in the connecting plate sliding groove in a sliding mode, and a structure matched with the connecting plate sliding grooves and the clamping column sliding blocks is arranged, so that the two groups of clamping columns 17 can slide more smoothly; a second spring 18 is connected between the two groups of clamping columns 17, one end, far away from the connecting plate 15, of the support 16 is clamped on the outer surface of the mold core body 6, and a semicircular clamping groove is formed in one end, far away from the connecting plate 15, of the support 16, so that the mold core body 6 can be conveniently clamped and fixed; one side of each of the two groups of clamping columns 17 is fixedly connected with a hollow column 19, and two ends of the second spring 18 are respectively and fixedly arranged in the two groups of hollow columns 19, so that the connection of the second spring 18 is more stable; two sets of hollow post 19 all set up to one end open-ended cylindrical structure, and two sets of hollow post 19 one side equal fixed mounting have pull ring 20, and two sets of pull ring 20 all set up to the annular pull ring, set up pull ring 20 and be convenient for spur two sets of card posts 17.

The working principle is as follows: when in use, the pull rings 20 on the two groups of hollow columns 19 are pulled first to pull the two groups of clamping columns 17 to the opposite direction, so that the two sets of the clamping columns 17 slide on the lower surface of the connecting plate 15, and simultaneously push the sliding plate 14 downwards, thereby compressing the first spring 11, and thus making the space inside the concave plate 10 larger, clamping the two sets of clamping posts 17 into the concave plate 10, simultaneously, the pull ring 20 and the sliding plate 14 are loosened, so that the lower surfaces of the two groups of clamping columns 17 are abutted against the upper surface of the sliding plate 14, the two groups of clamping columns 17 are fixed in the concave plate 10, and then the bracket 16 and the core body 6 are clamped and fixed, and finally the hydraulic cylinder 5 is started to drive the upper die 3 to descend to work, so that the upper die is not deformed by the instantaneous impact and pressure of the poured molten steel, the situation that the position of the ceramic core is deviated due to the instantaneous impact and pressure of the molten steel is effectively prevented, the obtained casting finished product is small in deformation, and the product percent of pass is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a mould with injection core frame, includes mould (3) and lower mould (4), its characterized in that: the lower die (4) is arranged above the upper die (3), the lower surface of the upper die (3) and the upper surface of the lower die (4) are both provided with a cavity (7), a core body (6) is arranged in the cavity (7), two groups of cavity (7) are both provided with a core frame assembly (8), two groups of cavity (7) are both provided with four groups of grooves (9), the core frame assembly (8) comprises concave plates (10), the concave plates (10) are arranged into four groups, the four groups of concave plates (10) are respectively and fixedly arranged in the four groups of grooves (9), the upper surface of the inner bottom of each concave plate (10) is fixedly provided with a first spring (11), the top end of each first spring (11) is fixedly connected with a sliding plate (14), the sliding plates (14) are slidably connected in the concave plates (10), and the top of each concave plate (10) is provided with a connecting plate (15), connecting plate (15) upper surface position fixed mounting placed in the middle has support (16), connecting plate (15) lower surface sliding connection has two sets of card post (17), and is two sets of card post (17) equal joint both sides in concave plate (10), and two sets of card post (17) lower surface is inconsistent with slide (14) upper surface, and is two sets of be connected with second spring (18) between card post (17).

2. A mold with a spray core holder according to claim 1, wherein: go up mould (3) upper surface and be provided with second fixed plate (2), lower mould (4) lower surface is provided with first fixed plate (1), the length, thickness and the width homogeneous phase of first fixed plate (1) and second fixed plate (2) are equal, just the length of first fixed plate (1) and second fixed plate (2) all is greater than the length of mould (3) and lower mould (4).

3. A mold with a spray core holder according to claim 2, wherein: guide pillars (21) are fixedly mounted on the upper surface of the first fixing plate (1), the guide pillars (21) are arranged into four groups, the four groups of guide pillars (21) are respectively and fixedly mounted at four corners of the upper surface of the first fixing plate (1), and the top ends of the four groups of guide pillars (21) are fixedly connected at four corners of the lower surface of the second fixing plate (2).

4. A mold with a spray core holder according to claim 2, wherein: and first fixed plate (1) top fixed mounting has pneumatic cylinder (5), the output rod end of pneumatic cylinder (5) runs through and extends to second fixed plate (2) lower surface one side, the output rod end and the last fixed surface of mould (3) of pneumatic cylinder (5) are connected.

5. A mold with a spray core holder according to claim 1, wherein: and the first springs (11) are arranged into three groups, and the top ends of the three groups of the first springs (11) are fixedly connected with the lower surface of the sliding plate (14).

6. A mold with a spray core holder according to claim 1, wherein: and the two ends of the sliding plate (14) are fixedly connected with sliding blocks (13), sliding grooves (12) are formed in the two sides of the concave plate (10), and the two groups of sliding blocks (13) are respectively connected in the two groups of sliding grooves (12) in a sliding mode.

7. A mold with a spray core holder according to claim 1, wherein: it is two sets of card post (17) all set up to L shape structure, and two sets of the equal fixedly connected with card post slider in card post (17) top, just the connecting plate spout has been seted up to connecting plate (15) lower surface, and two sets of card equal sliding connection of post slider is in the connecting plate spout.

8. A mold with a spray core holder according to claim 1, wherein: one end, far away from the connecting plate (15), of the support (16) is clamped on the outer surface of the mold core body (6), and a semicircular clamping groove is formed in one end, far away from the connecting plate (15), of the support (16).

9. A mold with a spray core holder according to claim 1, wherein: two sets of card post (17) one side all fixedly connected with hollow post (19), just second spring (18) both ends are fixed mounting respectively in two sets of hollow post (19).

10. A mold with a spray core holder according to claim 9, wherein: two sets of empty core column (19) all set up to one end open-ended cylindrical structure, and two sets of equal fixed mounting in empty core column (19) one side has pull ring (20), and two sets of pull ring (20) all set up to annular pull ring.