CN215544812U

CN215544812U - Injection molding die for mechanical engineering castings

Info

Publication number: CN215544812U
Application number: CN202121440863.2U
Authority: CN
Inventors: 罗春; 余慧玉
Original assignee: Chaoyang Fengtai Mechanical Equipment Manufacturing Co Ltd
Current assignee: Chaoyang Fengtai Mechanical Equipment Manufacturing Co Ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2022-01-18
Anticipated expiration: 2031-06-28

Abstract

The utility model provides an injection molding die for a mechanical engineering casting, which comprises a lower die; four corners of the bottom of the lower die are respectively and fixedly connected with support legs; the four corners of the lower die are respectively and fixedly connected with a stable bracket base, and the four stable bracket bases are respectively and fixedly connected with a stable shaft; the four stabilizing shafts are sleeved on the upper die shaft seats in a sliding manner, and the four upper die shaft seats are fixedly connected to four corners of the upper die; the four stabilizing shafts are respectively sleeved with a cushioning spring; two side surfaces of the lower die are fixedly connected with electric threaded rods through a support, and the two electric threaded rods are connected with threaded connecting blocks through threaded rotation; the two threaded connecting blocks are fixedly connected to the two sides of the upper die; set up injection device, adopt the pressure release hole of disconnect-type, inside atmospheric pressure is too big when the effectual pouring of avoiding liquid metal takes place the inflation, sets up independent sealed lid simultaneously, and the effectual liquid metal that prevents after the pouring is accomplished is unrestrained, avoids the potential safety hazard.

Description

Injection molding die for mechanical engineering castings

Technical Field

The utility model belongs to the technical field of mold manufacturing, and particularly relates to an injection molding mold for a mechanical engineering casting.

Background

The mould is various moulds and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool used to make a shaped article, the tool being made up of various parts, different molds being made up of different parts. The processing of the appearance of an article is realized mainly through the change of the physical state of a formed material. The casting is a metal molding object obtained by various casting methods, namely, smelted liquid metal is injected into a casting mold prepared in advance by pouring, injecting, sucking or other casting methods, and after cooling and subsequent processing means such as grinding and the like, the obtained object with certain shape, size and performance needs to be used in a mechanical engineering casting injection molding die when applied to mechanical engineering.

Based on the above, the inventor finds that the existing mechanical engineering casting injection molding die is not provided with a pressure relief device, so that the situation that injection is caused by pressure relief when the state metal is injected cannot be realized, the potential safety hazard exists, the bubble removing device is not arranged, the situation that bubbles exist in the metal during casting is prevented, the defective quantity is increased, the sealing device is not arranged, the product quality cannot reach the standard, and meanwhile, the demoulding device for uniformly applying force is not arranged, so that the casting is damaged by excessive extrusion of local pressure during demoulding.

Therefore, in view of the above, research and improvement are made for the existing structure and defects, and a mechanical engineering casting injection molding mold is provided to achieve the purpose of higher practical value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides an injection molding die for a mechanical engineering casting, which aims to solve the problems that the existing injection molding die for the mechanical engineering casting is not provided with a pressure relief device to prevent injection caused by the fact that pressure cannot be relieved during the injection of an original metal, has potential safety hazards, is not provided with a bubble removal device to prevent bubbles from being generated during the casting of the metal, increases the defective quantity, is not provided with a sealing device and is not provided with a demoulding device for uniformly applying force.

The purpose and the effect of the injection molding die for the mechanical engineering casting are achieved by the following specific technical means:

an injection molding die for a mechanical engineering casting comprises a lower die; four corners of the bottom of the lower die are respectively and fixedly connected with support legs; the four corners of the lower die are respectively and fixedly connected with a stable bracket base, and the four stable bracket bases are respectively and fixedly connected with a stable shaft; the four stabilizing shafts are sleeved on the upper die shaft seats in a sliding manner, and the four upper die shaft seats are fixedly connected to four corners of the upper die; the four stabilizing shafts are respectively sleeved with a cushioning spring; two side surfaces of the lower die are fixedly connected with electric threaded rods through a support, and the two electric threaded rods are connected with threaded connecting blocks through threaded rotation; the two threaded connecting blocks are fixedly connected to the two sides of the upper die; the top of the upper die is fixedly connected with a degassing device; the top of the upper die is fixedly connected with an injection device; the top of the upper die is fixedly connected with a radiating fin; the bottom of the lower die is fixedly connected with a stress device; and the top of the lower die is fixedly connected with a pouring sealing device.

Further, the injection device comprises: the top of the upper die is fixedly connected with the pouring pipe, and the sealing cover is rotatably connected on the pouring pipe in a rotating manner; the inner wall of the pouring pipe is fixedly connected with an injection port, and the outer side of the injection port is fixedly connected with six groups of pressure relief holes.

Further, the degassing device comprises: the vibration mechanism comprises a protective shell, a vibration motor and heat dissipation holes, wherein the top of the upper die is fixedly connected with the vibration motor through a bolt; go up the mould top through bolt fixedly connected with protective housing, and protective housing outside fixedly connected with louvre.

Further, the pouring sealing device comprises: the sealing device comprises sealing springs, a telescopic groove and a sealing ring, wherein the telescopic groove is fixedly connected to the top of the lower die, and twenty sealing springs are fixedly connected in the telescopic groove; twenty sealing springs are fixedly connected with sealing rings at the other ends, and the sealing rings are connected to the telescopic grooves in a sliding mode.

Further, the force-receiving device comprises: the bottom of the lower die is slidably sleeved with nine sealing top columns, and the bottom of each nine sealing top column is fixedly connected with a connecting plate; two force application electric push rods are fixedly sleeved on the connecting plate, and the head ends of the two force application electric push rods are fixedly connected to the bottom of the lower die.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the injection device is arranged, the separated pressure relief hole is adopted, the expansion caused by overlarge internal air pressure during the pouring of the liquid metal is effectively avoided, and the independent sealing cover is arranged, so that the liquid metal is effectively prevented from being scattered after the pouring is finished, and the potential safety hazard is avoided.

2. According to the utility model, the degassing device is arranged, and the vibration motor is adopted to perform micro vibration on the top, so that bubbles in the device are prevented from being existed when liquid metal is poured, defective products of the whole casting are prevented, the working efficiency is reduced, and the cost is increased.

3. According to the utility model, by arranging the pouring sealing device, the upper die and the lower die can be sealed, so that liquid metal leakage caused by poor sealing effect is prevented, the product quality is influenced, polishing is required at a later stage, and the working efficiency is reduced.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of the injection device of the present invention.

FIG. 3 is a schematic view of the degassing apparatus according to the present invention.

Fig. 4 is a schematic cross-sectional structure of the present invention.

Fig. 5 is a schematic structural view of the pouring sealing device of the present invention.

Fig. 6 is a schematic bottom structure of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a lower die; 2. an upper die; 3. an injection device; 301. a pouring tube; 302. a sealing cover; 303. a pressure relief vent; 304. an injection port; 4. a degassing device; 401. a protective shell; 402. vibrating a motor; 403. heat dissipation holes; 5. pouring a sealing device; 501. a seal spring; 502. a telescopic groove; 503. a seal ring; 6. a force-receiving device; 601. sealing the top pillar; 602. a force application electric push rod; 603. a connecting plate; 7. stabilizing the support base; 8. a stabilizing shaft; 9. a cushioning spring; 10. an upper die shaft seat; 11. a heat sink; 12. an electric threaded rod; 13. a threaded connection block; 14. a bracket leg.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 6:

the utility model provides an injection molding die for a mechanical engineering casting, which comprises a lower die 1; four corners of the bottom of the lower die 1 are respectively fixedly connected with support legs 14; four corners of the lower die 1 are respectively and fixedly connected with a stable bracket base 7, and the four stable bracket bases 7 are respectively and fixedly connected with a stable shaft 8; the four stabilizing shafts 8 are sleeved on the upper die shaft seats 10 in a sliding manner, and the four upper die shaft seats 10 are fixedly connected to four corners of the upper die 2; the four stabilizing shafts 8 are all sleeved with shock absorption springs 9; two side surfaces of the lower die 1 are fixedly connected with electric threaded rods 12 through supports, and the two electric threaded rods 12 are connected with threaded connecting blocks 13 in a penetrating manner through threaded rotation; the two threaded connecting blocks 13 are fixedly connected to two sides of the upper die 2; the top of the upper die 2 is fixedly connected with a degassing device 4; the top of the upper die 2 is fixedly connected with an injection device 3; the top of the upper die 2 is fixedly connected with a radiating fin 11; the bottom of the lower die 1 is fixedly connected with a stress device 6; the top of the lower die 1 is fixedly connected with a pouring sealing device 5.

Wherein the injection device 3 comprises: the top of the upper die 2 is fixedly connected with the pouring tube 301, and the pouring tube 301 is rotatably connected with the sealing cover 302 on the pouring tube 301; pouring tube 301 inner wall fixedly connected with injection port 304, and six groups of pressure release holes 303 of fixedly connected with outside injection port 304 set up injection device 3, adopt the pressure release hole 303 of disconnect-type, and inside atmospheric pressure is too big when effectual avoiding the liquid metal pouring takes place the inflation, sets up independent sealed lid 302 simultaneously, and the effectual liquid metal that prevents after the pouring is accomplished is unrestrained, avoids the potential safety hazard.

Wherein the degassing device 4 comprises: the vibration mechanism comprises a protective shell 401, a vibration motor 402 and heat dissipation holes 403, wherein the top of the upper die 2 is fixedly connected with the vibration motor 402 through bolts; go up mould 2 top and pass through bolt fixedly connected with protective housing 401, and protective housing 401 outside fixedly connected with louvre 403 sets up gas removal equipment 4, adopts shock dynamo 402 to carry out small vibrations at the top, prevents that liquid metal from when the pouring, and there is the bubble in the device, causes the formation substandard product of whole foundry goods, when reducing work efficiency, on the spot hyperplasia cost.

Wherein, pouring sealing device 5 includes: the sealing device comprises a sealing spring 501, a telescopic groove 502 and a sealing ring 503, wherein the telescopic groove 502 is fixedly connected to the top of the lower die 1, and twenty sealing springs 501 are fixedly connected in the telescopic groove 502; twenty sealing spring 501 other end fixedly connected with sealing washer 503, and sealing washer 503 sliding connection sets up pouring sealing device 5 on flexible groove 502, can seal between last mould 2 and lower mould 1 through sealing washer 503, prevents that sealed effect is not good to cause liquid metal to leak, influences product quality simultaneously, needs the later stage to polish again, reduces work efficiency.

Wherein, the force-receiving device 6 comprises: the bottom of the lower die 1 is slidably sleeved with nine sealing top columns 601, and the bottom of the nine sealing top columns 601 is fixedly connected with the connecting plate 603; two force application electric push rods 602 are fixedly sleeved on the connecting plate 603, the head ends of the two force application electric push rods 602 are fixedly connected to the bottom of the lower die 1, demolding is facilitated, nine groups of sealing top columns 601 are adopted, stress can be more uniform, and a concentrated stress is prevented from jacking up a bad casting.

The specific use mode and function of the embodiment are as follows:

in the utility model, firstly, the bracket leg 14 is arranged at the bottom of the lower die 1 and is connected with the workbench, after the connection is finished, the upper die 2 is driven to be butted with the lower die 1 through the electric threaded rod 12, the pouring sealing device 5 can seal the upper die 2 and the lower die 1, the sealing cap 302 on the injection device 3 can then be opened, the injection tube docked with the injection port 304, after the butt joint is finished, the injection can be carried out, the pressure relief hole 303 can continuously relieve the pressure in the process to prevent the internal air pressure from being overlarge, the vibration motor 402 arranged on the degassing device 4 carries out the defoaming on the inside in a vibration mode in the injection process, and finally, after injection is completed, the cooling fins 11 can be cooled in an accelerated manner, after cooling is completed, the electric threaded rod 12 drives the upper die 2 to separate, and the nine groups of sealing top columns 601 are driven by the two force application electric push rods 602 to uniformly apply force to the casting for demolding.

The utility model is not described in detail, but is well known to those skilled in the art.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a mechanical engineering foundry goods injection moulding mould which characterized in that: comprises a lower die (1); four corners of the bottom of the lower die (1) are respectively and fixedly connected with support legs (14); four corners of the lower die (1) are respectively and fixedly connected with a stable bracket base (7), and stable shafts (8) are fixedly connected to the four stable bracket bases (7); the four stabilizing shafts (8) are sleeved on the upper die shaft seats (10) in a sliding manner, and the four upper die shaft seats (10) are fixedly connected to four corners of the upper die (2); the four stabilizing shafts (8) are sleeved with shock absorption springs (9); two side surfaces of the lower die (1) are fixedly connected with electric threaded rods (12) through supports, and the two electric threaded rods (12) are connected with threaded connecting blocks (13) in a penetrating manner through threaded rotation; the two threaded connecting blocks (13) are fixedly connected to two sides of the upper die (2); the top of the upper die (2) is fixedly connected with a degassing device (4); the top of the upper die (2) is fixedly connected with an injection device (3); the top of the upper die (2) is fixedly connected with a radiating fin (11); the bottom of the lower die (1) is fixedly connected with a stress device (6); and the top of the lower die (1) is fixedly connected with a pouring sealing device (5).

2. The mechanical engineering casting injection molding mold of claim 1, wherein: the injection device (3) comprises: the injection mold comprises a pouring pipe (301), a sealing cover (302), a pressure relief hole (303) and an injection port (304), wherein the top of the upper mold (2) is fixedly connected with the pouring pipe (301), and the sealing cover (302) is rotatably connected on the pouring pipe (301); the inner wall of the pouring tube (301) is fixedly connected with an injection port (304), and the outer side of the injection port (304) is fixedly connected with six groups of pressure relief holes (303).

3. The mechanical engineering casting injection molding mold of claim 1, wherein: the degassing device (4) comprises: the vibration mechanism comprises a protective shell (401), a vibration motor (402) and heat dissipation holes (403), wherein the top of the upper die (2) is fixedly connected with the vibration motor (402) through bolts; go up mould (2) top and pass through bolt fixedly connected with protective housing (401), and protective housing (401) outside fixedly connected with louvre (403).

4. The mechanical engineering casting injection molding mold of claim 1, wherein: the pouring seal (5) comprises: the sealing device comprises sealing springs (501), a telescopic groove (502) and a sealing ring (503), wherein the telescopic groove (502) is fixedly connected to the top of the lower die (1), and twenty sealing springs (501) are fixedly connected in the telescopic groove (502); twenty sealing springs (501) are fixedly connected with sealing rings (503) at the other ends, and the sealing rings (503) are connected to the telescopic groove (502) in a sliding mode.

5. The mechanical engineering casting injection molding mold of claim 1, wherein: the force-receiving device (6) comprises: the device comprises sealing top pillars (601), a force application electric push rod (602) and a connecting plate (603), wherein nine sealing top pillars (601) are slidably sleeved at the bottom of the lower die (1), and the connecting plate (603) is fixedly connected at the bottoms of the nine sealing top pillars (601); two force application electric push rods (602) are fixedly sleeved on the connecting plate (603), and the head ends of the two force application electric push rods (602) are fixedly connected to the bottom of the lower die (1).