CN218519109U

CN218519109U - Apron forming die with automatic drawing of patterns function

Info

Publication number: CN218519109U
Application number: CN202223113564.5U
Authority: CN
Inventors: 甘兵; 叶嘉俊; 何云明
Original assignee: Dongguan Hongao Electronic Technology Co ltd
Current assignee: Dongguan Hongao Electronic Technology Co ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-02-24
Anticipated expiration: 2032-11-22

Abstract

The utility model relates to the technical field of mold, a apron forming die with automatic drawing of patterns function is disclosed, including lower mould subassembly and last mould subassembly, lower mould subassembly and last mould subassembly are inside to be provided with respectively with compound die direction vertically first ejecting hole and second ejecting hole, first ejecting hole and second ejecting hole lateral wall punishment do not are provided with first gas pocket and second gas pocket, all be equipped with ejection mechanism according to the hole length in first ejecting hole and the second ejecting hole, ejection mechanism includes the screw rod, screw rod one end is run through the die body and is extended to the chamber of moulding plastics, the screw rod extension end is provided with the conical disk, screw rod outer wall threaded connection has the nut, the nut is close to the chamber of moulding plastics and installs the spring one side. The utility model discloses in, mutually support between ejection mechanism and the gas pocket through setting up, the conical disc lateral wall receives the influence of gas impact force outside ejecting among the ejection mechanism to realize the automatic drawing of patterns after the injection molding shaping.

Description

Apron forming die with automatic drawing of patterns function

Technical Field

The utility model relates to the technical field of mold, especially, relate to an apron forming die with automatic drawing of patterns function.

Background

The working principle of the forming die is similar to that of an injector for injection, and the plastic piece forming is realized by injecting plasticized plastic in a molten state into a closed die cavity by means of the thrust of a screw rod.

In the prior art, a common mould demoulding device of a plastic part forming machine is low in practicability, manual assistance is needed for demoulding, efficiency is low, and manpower is wasted.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a cover plate forming die with an automatic demoulding function.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a cover plate forming die with an automatic demolding function comprises a lower die assembly and an upper die assembly, wherein a first ejection hole and a second ejection hole which are perpendicular to a die assembly direction are formed in the lower die assembly and the upper die assembly respectively, a first air hole and a second air hole are formed in the first ejection hole and the second ejection hole respectively at one position of the side wall, and ejection mechanisms are installed in the first ejection hole and the second ejection hole according to the hole lengths;

the ejection mechanism comprises a screw, one end of the screw penetrates through the die body and extends to the injection molding cavity, a conical disc is arranged at the extending end of the screw, the converging end of the conical disc is far away from the injection molding cavity, the diffusing end of the conical disc and the surface of the die body are arranged in a coplanar manner, a nut is in threaded connection with the outer wall of the screw, and a spring is arranged on one side, close to the injection molding cavity, of the nut.

As a further description of the above technical solution:

the lower die assembly comprises a lower die base, a forming die and a first fixing plate, the first ejection hole and the first air hole are formed in the lower die base, a cavity attached to the outer surface of an injection molding piece is formed in the forming die, the forming die is fixedly connected to the upper side of the lower die base, and the first fixing plate is fixedly connected to the lower side of the lower die base.

As a further description of the above technical solution:

the upper die assembly comprises an upper die base and a second fixing plate, the second ejecting hole and the second air hole are formed in the upper die base, a protrusion attached to the inner surface of the injection molding piece extends from the lower side of the upper die base, and the second fixing plate is fixedly connected to the upper side of the upper die base.

As a further description of the above technical solution:

an injection molding cavity is formed between the molding model cavity and the upper die base protrusion, a material injection hole is formed in one side of the lower die assembly, and one end of the material injection hole extends into the injection molding cavity.

As a further description of the above technical solution:

and air ducts are arranged on the contact surfaces of the outer wall of the screw and the die body.

As a further description of the above technical solution:

and a gasket is arranged between the nut and the spring.

As a further description of the above technical solution:

one side of the first air hole is connected to the external air pump assembly through a first connecting pipe, and one side of the second air hole is connected to the external air pump assembly through a second connecting pipe.

The utility model discloses following beneficial effect has:

1. the utility model discloses in, mutually support between ejection mechanism and the gas pocket through setting up, the conical disc lateral wall receives the influence of gas impact force outside ejecting among the ejection mechanism to realize the automatic drawing of patterns after the injection molding shaping.

Drawings

Fig. 1 is a schematic view of the overall structure of a cover plate forming mold with an automatic demolding function according to the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

fig. 3 is the utility model provides a cover plate forming die's ejection mechanism schematic structure with automatic drawing of patterns function.

Illustration of the drawings:

1. a lower die assembly; 110. a lower die holder; 111. a first ejection bore; 112. a first air hole; 113. a first connecting pipe; 114. an air duct; 120. forming a mould; 121. a material injection hole; 130. a first fixing plate; 2. an upper die assembly; 210. an upper die holder; 211. a second ejection bore; 212. a second air hole; 213. a second connecting pipe; 220. a second fixing plate; 3. an ejection mechanism; 310. a screw; 311. a conical disc; 320. a nut; 330. a gasket; 340. a spring.

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. 1-3, the present invention provides an embodiment: a cover plate forming die with an automatic demolding function comprises a lower die component 1 and an upper die component 2, wherein a first ejection hole 111 and a second ejection hole 211 which are perpendicular to a die assembly direction are respectively formed in the lower die component 1 and the upper die component 2, a first air hole 112 and a second air hole 212 are respectively formed in one position of the side wall of the first ejection hole 111 and one position of the side wall of the second ejection hole 211, and ejection mechanisms 3 are respectively installed in the first ejection hole 111 and the second ejection hole 211; after the lower die assembly 1 and the upper die assembly 2 are subjected to injection molding after die assembly, the first air hole 112 and the second air hole 212 are respectively matched with the ejection mechanisms 3 arranged on the upper die and the lower die, so that automatic demolding of injection molding parts is realized.

The ejection mechanism 3 comprises a screw 310, one end of the screw 310 penetrates through the mold body and extends to the injection molding cavity, a conical disc 311 is arranged at the extending end of the screw 310, the converging end of the conical disc 311 is far away from the injection molding cavity, the diverging end of the conical disc 311 and the surface of the mold body are arranged in a coplanar manner, a nut 320 is in threaded connection with the outer wall of the screw 310, and a spring 340 is arranged on one side, close to the injection molding cavity, of the nut 320; the air holes are used for ventilation, so that air is flushed into the ejection holes, the conical disc 311 is pushed outwards, the injection molded part is blown out, automatic demolding is achieved, after demolding is finished, air inflation is stopped, and the ejection mechanism 3 is reset under the action of the spring 340.

The lower die assembly 1 comprises a lower die base 110, a forming die 120 and a first fixing plate 130, wherein a first ejection hole 111 and a first air hole 112 are arranged in the lower die base 110, a cavity attached to the outer surface of an injection molding piece is arranged in the forming die 120, the forming die 120 is fixedly connected to the upper side of the lower die base 110, and the first fixing plate 130 is fixedly connected to the lower side of the lower die base 110; the first ejection hole 111 penetrates through the lower die base 110, and the first fixing plate 130 is disposed to facilitate assembly of the ejection mechanism 3 in the first ejection hole 111.

The upper die assembly 2 comprises an upper die holder 210 and a second fixing plate 220, a second ejection hole 211 and a second air hole 212 are arranged in the upper die holder 210, a bulge attached to the inner surface of the injection molding piece is arranged on the lower side of the upper die holder 210, and the second fixing plate 220 is fixedly connected to the upper side of the upper die holder 210; the second ejecting hole 211 penetrates through the upper mold base 210, and the second fixing plate 220 is disposed in the second ejecting hole 211 to facilitate assembly of the ejecting mechanism 3.

An injection molding cavity is formed between the cavity of the forming mold 120 and the protrusion of the upper mold base 210, a material injection hole 121 is formed in one side of the lower mold assembly 1, and one end of the material injection hole 121 extends into the injection molding cavity.

The contact surface of the outer wall of the screw 310 and the die body is provided with an air duct 114; through the arrangement of the air duct 114, the air inflation demoulding is more stable.

A gasket 330 is arranged between the nut 320 and the spring 340, and the setting of the gasket 330 makes the ejection mechanism 3 more stable when resetting.

One side of the first air hole 112 is connected to the external air pump assembly through a first connection pipe 113, and one side of the second air hole 212 is connected to the external air pump assembly through a second connection pipe 213.

The working principle is as follows: when the injection molding machine is used, after the lower die component 1 and the upper die component 2 are assembled through external equipment, materials are injected into an injection molding cavity through the material injection hole 121, after an injection molding piece is molded, air is filled into the first ejection hole 111 through the first air hole 112, the side wall of the conical disc 311 in the ejection mechanism 3 in the first ejection hole 111 is ejected outwards under the influence of air impact force, the injection molding piece is ejected from the cavity of the molding die 120, then air is filled into the second ejection hole 211 through the second air hole 212, and the side wall of the conical disc 311 in the ejection mechanism 3 in the second ejection hole 211 is ejected outwards under the influence of air impact, so that automatic demolding of the injection molding piece is realized; after demolding, the inflation is stopped, and the ejection mechanism 3 is reset under the action of the spring 340, so that the injection molding operation can be continued.

Finally, it should be noted that: 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 modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a apron forming die with automatic drawing of patterns function, includes lower mould component (1) and goes up mould component (2), its characterized in that: a first ejection hole (111) and a second ejection hole (211) which are perpendicular to the mold closing direction are respectively formed in the lower mold component (1) and the upper mold component (2), a first air hole (112) and a second air hole (212) are respectively formed in one position of the side wall of each of the first ejection hole (111) and the second ejection hole (211), and ejection mechanisms (3) are respectively arranged in each of the first ejection hole (111) and the second ejection hole (211);

the ejection mechanism (3) comprises a screw rod (310), one end of the screw rod (310) penetrates through the die body and extends to the injection molding cavity, a conical disc (311) is arranged at the extending end of the screw rod (310), the converging end of the conical disc (311) is far away from the injection molding cavity, the diffusing end of the conical disc (311) is coplanar with the surface of the die body, a nut (320) is connected to the outer wall of the screw rod (310) in a threaded mode, and a spring (340) is arranged on one side, close to the injection molding cavity, of the nut (320).

2. The cover plate forming die with the automatic demolding function as claimed in claim 1, wherein: the lower die assembly (1) comprises a lower die base (110), a forming die (120) and a first fixing plate (130), wherein a first ejecting hole (111) and a first air hole (112) are formed in the lower die base (110), a cavity attached to the outer surface of an injection molding piece is formed in the forming die (120), the forming die (120) is fixedly connected to the upper side of the lower die base (110), and the first fixing plate (130) is fixedly connected to the lower side of the lower die base (110).

3. The cover plate forming mold with automatic demolding function as claimed in claim 2, wherein: go up mould subassembly (2) including upper die base (210) and second fixed plate (220), second ejecting hole (211) and second air hole (212) set up in upper die base (210), upper die base (210) downside is provided with the arch of pasting mutually with the injection molding internal surface, second fixed plate (220) fixed connection is on upper die base (210) upside.

4. The cover plate forming die with the automatic demolding function as claimed in claim 3, wherein: an injection molding cavity is formed between the cavity of the forming mold (120) and the bulge of the upper mold base (210), a material injection hole (121) is formed in one side of the lower mold assembly (1), and one end of the material injection hole (121) extends into the injection molding cavity.

5. The cover plate forming mold with automatic demolding function as claimed in claim 1, wherein: and air ducts (114) are arranged on the contact surfaces of the outer wall of the screw rod (310) and the die body.

6. The cover plate forming mold with automatic demolding function as claimed in claim 1, wherein: a gasket (330) is arranged between the nut (320) and the spring (340).

7. The cover plate forming mold with automatic demolding function as claimed in claim 1, wherein: one side of the first air hole (112) is connected to an external air pump assembly through a first connecting pipe (113), and one side of the second air hole (212) is connected to the external air pump assembly through a second connecting pipe (213).