CN213353401U

CN213353401U - Ejector pin demoulding type injection mold free of square iron and needle plate

Info

Publication number: CN213353401U
Application number: CN202021642926.8U
Authority: CN
Inventors: 施维昇; 蒋华; 欧阳永忠
Original assignee: Nadfinlo Plastics Industry (shenzhen) Co ltd
Current assignee: Nadfinlo Plastics Industry (shenzhen) Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-06-04
Anticipated expiration: 2030-08-07

Abstract

The utility model discloses an ejector pin demoulding type injection mould without square iron and a needle plate, which comprises an upper mould and a lower mould, wherein the upper mould comprises an upper mould push plate, an upper mould core mounting plate, an upper mould base plate and an upper mould core; the lower die comprises a lower die base plate, a lower die fixing plate, a lower die core, a movable mounting groove, a movable mounting plate and a movable gap, a resin shutter is arranged at the bottom of an upper die push plate, the acting end of the resin shutter acts on the movable mounting plate, the upper die is provided with a pouring cup communicated with the die cavity, a water gap thimble is fixedly mounted on the movable mounting plate, a lower die core inner thimble channel matched with the water gap thimble is arranged in the lower die core, the upper part of the water gap thimble extends into the lower die core thimble channel, and the upper end part of the water gap thimble is positioned below the water gap channel in the pouring cup. The ejector pin demolding type injection mold free of square iron and the needle plate has the advantages of being simple in structure, convenient to install and maintain, small in size, low in implementation cost, stable and reliable in performance and the like, and the ejector pin demolding type injection mold is not available in the prior art.

Description

Ejector pin demoulding type injection mold free of square iron and needle plate

Technical Field

The utility model relates to a mold device, especially an avoid thimble drawing of patterns formula injection mold of square iron and faller.

Background

The injection mold is the main equipment for producing various plastic products. The traditional injection mold needs to be provided with square iron, a needle plate and other parts to fix the thimble so as to realize the function of demoulding the thimble, and the installation structure has the technical defects of structural responsibility, low performance reliability, difficult mold assembly and maintenance, high production cost, large volume and the like.

In view of the above, the present invention provides a new technical solution to solve the existing technical drawbacks.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides an avoid thimble drawing of patterns formula injection mold of square iron and faller, solved that the structure that prior art exists is complicated, the reliability is poor, the installation is maintained difficulty, the implementation is with high costs technology, bulky defect.

The utility model provides a technical scheme that its technical problem adopted is:

an ejector pin demolding type injection mold free of square iron and a needle plate comprises an upper mold and a lower mold, wherein the upper mold comprises an upper mold push plate, an upper mold core mounting plate fixedly mounted on the upper mold push plate and an upper mold base plate fixedly mounted on the upper mold core mounting plate, and upper mold cores are arranged in the upper mold push plate and the upper mold core mounting plate; the lower die comprises a lower die base plate and a lower die fixing plate fixedly arranged on the lower die base plate, a lower die core is fixedly arranged on the lower die fixing plate, a movable mounting groove is arranged in the lower die fixing plate, a movable mounting plate is arranged in the movable mounting groove and is positioned at the bottom of the lower die core, a movable gap is formed between the upper surface of the movable mounting plate and the lower surface of the lower die core, the movable mounting plate can move in a limiting space of the movable gap, a resin shutter is arranged at the bottom of an upper die push plate, the action end of the resin shutter acts on the movable mounting plate, a die cavity for forming a product is arranged between the upper die core and the lower die core, the upper die is provided with a pouring cup communicated with the die cavity, a water gap thimble is fixedly arranged on the movable mounting plate, and a thimble channel, the upper part of the water gap thimble extends into the thimble channel in the lower die core, the upper end part of the water gap thimble is positioned below the water gap channel in the pouring cup, and the water gap channel of the pouring cup and the thimble channel in the lower die core are coaxial through holes.

As a further improvement of the above technical scheme, the upper mold core comprises a first upper mold core, a second upper mold core, a third upper mold core and a fourth upper mold core, the first upper mold core, the second upper mold core and the third upper mold core are fixedly mounted inside the upper mold core mounting plate, and the fourth upper mold core is mounted inside the upper mold push plate.

As the further improvement of the technical scheme, go up the inside movable mould core groove that is provided with of mould core mounting panel, go up mould core mounting panel both sides and be provided with movable mould core and drive actuating cylinder, be provided with mould movable mould core in the movable mould core groove, the output shaft that movable mould core drove actuating cylinder is connected to go up mould movable mould core and can drive the mould movable mould core and remove in movable mould core inslot, mould core lateral part is provided with the cooperation on the third go up the mould core breach of mould movable mould core, the inner wall that goes up mould movable mould core can support and lean on to the mould core lateral wall down.

As a further improvement of the technical scheme, the movable mold core driving cylinder is arranged on the side part of the upper mold core mounting plate through a cylinder mounting plate.

As a further improvement of the technical scheme, the pouring cup is arranged at the top of the upper die core mounting plate, the lower end part of the pouring cup extends into the first upper die core, and a pouring cup hole matched with the pouring cup is formed in the middle of the upper die base plate.

As a further improvement of the above technical solution, the movable mounting plate is a mounting plate having a shape of "concave", the movable mounting plate has two ends with connecting portions, the resin shutter has two resin shutters, and the lower ends of the resin shutters are connected to the connecting portions at the two ends of the movable mounting plate.

As a further improvement of the technical scheme, the bottom of the lower mold core is provided with a lower mold core clearance groove for the movable mounting plate to move in the lower mold core clearance groove.

As a further improvement of the technical scheme, the lower end side part of the lower die core is provided with a lower die core limiting notch, and a limiting block matched with the lower die core limiting notch is embedded in the lower die fixing plate.

As a further improvement of the technical scheme, a guide post device which is convenient for die opening and die closing guiding is arranged in the die, a pull rod is arranged in the upper die, the lower end of the pull rod is fixedly connected to the upper die push plate, and the upper end of the pull rod extends to the upper part of the upper die base plate.

The utility model has the advantages that: the utility model provides an avoid thimble drawing of patterns injection mold of square iron and faller, this kind of thimble drawing of patterns injection mold of avoiding square iron and faller is provided with the resin shutter, when the mould die sinking, accessible resin shutter drives the movable mounting board motion, it is ejecting that further movable mounting board drives mouth of a river thimble motion and will water the mouth of a river plastic in the cup, make the mould go up mould and the lower mould of mould can smooth die sinking, the square iron in the current mould has been cancelled, parts such as roof, not only greatly reduced equipment cost, the installation has also been reduced simultaneously and the maintenance degree of difficulty, the stability of mould is higher, the volume of mould has effectively been reduced, the market competitiveness of the product has been promoted.

In conclusion, the ejector pin demolding type injection mold free of square iron and the needle plate overcomes the defects of complex structure, poor reliability, difficulty in installation and maintenance, high implementation cost and the like and large size in the prior art.

Drawings

The present invention will be further explained with reference to the drawings and examples.

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

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

fig. 3 is a cross-sectional view taken along the line a-a of fig. 2 in accordance with the present invention;

fig. 4 is a cross-sectional view taken in the direction B-B of fig. 2 in accordance with the present invention;

fig. 5 is a schematic diagram of the internal structure of the present invention.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the connection/connection relations referred to in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to specific implementation conditions. The technical features of the present invention can be combined interactively without conflicting with each other, as shown in fig. 1 to 5.

An ejector pin demolding type injection mold free of square iron and a needle plate comprises an upper mold and a lower mold, wherein the upper mold comprises an upper mold push plate 11, an upper mold core mounting plate 12 fixedly mounted on the upper mold push plate 11 and an upper mold base plate 13 fixedly mounted on the upper mold core mounting plate 12, and upper mold cores are arranged inside the upper mold push plate 11 and the upper mold core mounting plate 12; the lower die comprises a lower die base plate 21 and a lower die fixing plate 22 fixedly installed on the lower die base plate 21, a lower die core 23 is fixedly installed on the lower die fixing plate 22, a movable installation groove 221 is formed in the lower die fixing plate 22, a movable installation plate 24 is arranged in the movable installation groove 221, the movable installation plate 24 is located at the bottom of the lower die core 23, a movable gap 25 is formed between the upper surface of the movable installation plate 24 and the lower surface of the lower die core 23, the movable installation plate 24 can move in a limit space of the movable gap 25, a resin shutter 14 is arranged at the bottom of an upper die push plate 11, the action end of the resin shutter 14 acts on the movable installation plate 24, a die cavity for forming a product 4 is formed between the upper die core and the lower die core 23, the upper die is provided with a pouring cup 15 communicated with the die cavity, a lower mold core thimble channel 231 matched with the water gap thimble 26 is formed in the lower mold core 23, the upper part of the water gap thimble 26 extends into the lower mold core thimble channel 231, the upper end part of the water gap thimble 26 is positioned below the water gap channel in the pouring cup 15, and the water gap channel of the pouring cup 15 and the lower mold core thimble channel 231 are coaxial through holes.

Preferably, the upper mold core includes a first upper mold core 161, a second upper mold core 162, a third upper mold core 163 and a fourth upper mold core 164, the first upper mold core 161, the second upper mold core 162 and the third upper mold core 163 are fixedly installed inside the upper mold core mounting plate 12, and the fourth upper mold core 164 is installed inside the upper mold push plate 11.

Preferably, go up inside movable mould core groove 121 that is provided with of mold core mounting panel 12, go up mold core mounting panel 12 both sides and be provided with movable mould core and drive actuating cylinder 17, be provided with last movable mould core 165 in the movable mould core groove 121, the output shaft that movable mould core drove actuating cylinder 17 is connected to go up movable mould core 165 and can drive and go up movable mould core 165 and remove in movable mould core groove 121, mold core 163 lateral part is provided with the cooperation on the third go up the mold core breach of movable mould core 165, the inner wall of going up movable mould core 165 can support and lean on to die core 23 lateral wall down.

Preferably, the movable core driving cylinder 17 is mounted to the side of the upper core mounting plate 12 through a cylinder mounting plate 171.

Preferably, the pouring cup 15 is mounted on the top of the upper mold core mounting plate 12, the lower end of the pouring cup 15 extends into the first upper mold core 161, and a pouring cup hole for matching the pouring cup 15 is arranged in the middle of the upper mold base plate 13.

Preferably, the movable mounting plate 24 is a mounting plate shaped in a "concave" shape, the movable mounting plate 24 has two connecting portions at both ends, the resin shutter 14 has two, and the lower end of the resin shutter 14 is connected to the connecting portions at both ends of the movable mounting plate 24.

Preferably, the bottom of the lower mold core 23 is provided with a lower mold core clearance groove for the movable mounting plate 24 to move inside.

Preferably, the lower mold core 23 is provided with a lower mold core limiting notch at the lower end side, and a limiting block 27 matched with the lower mold core limiting notch is embedded in the lower mold fixing plate 22.

Preferably, a guide post device 51 for facilitating mold opening and mold closing guiding is arranged in the mold, a pull rod 52 is arranged in the upper mold, the lower end of the pull rod 52 is fixedly connected to the upper mold push plate 11, and the upper end of the pull rod 52 extends to the upper part of the upper mold base plate 13.

Concrete implementation the utility model discloses the time, the mould is moulding plastics the completion back, the pressurize cooling. Further mould opening, at first through the pull rod 52 in the drive upper mould of mould actuating mechanism and through pull rod 52 pulling mould push pedal 11, in mould and lower mould die sinking process, because the effect of resin shutter 14, mould push pedal 11 can drive movable mounting plate 24 through resin shutter 14 and move along the die sinking direction in the space that the clearance 25 is injectd, and movable mounting plate 24 drives mouth of a river thimble 26 upwards ejecting, the plastic in the mouth of a river passageway in mouth of a river thimble 26 pouring cup 15 is ejecting for mould, lower mould can be opened the mould smoothly. When the movable mounting plate 24 moves to the uppermost part in the movable gap 25, the movable mounting plate is 24 times the bottom of the lower mold core 23 for limiting, at this time, the upper mold continues to open the mold, the movable mounting plate 24 stops moving, and after the upper mold and the lower mold are smoothly opened, the product 4 is taken out through the manipulator.

The structure can eliminate the square block, the needle plate and other parts in the existing mould, greatly simplifies the mould structure, not only greatly reduces the practical cost, but also simplifies the structure, reduces the installation and maintenance difficulty, and has simpler mould structure, smaller volume and more stable and reliable performance.

While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.

Claims

1. The utility model provides an exempt thimble drawing of patterns formula injection mold of square iron and faller which characterized in that: the die comprises an upper die and a lower die, wherein the upper die comprises an upper die push plate (11), an upper die core mounting plate (12) fixedly arranged on the upper die push plate (11) and an upper die base plate (13) fixedly arranged on the upper die core mounting plate (12), and upper die cores are arranged in the upper die push plate (11) and the upper die core mounting plate (12); the lower mould comprises a lower mould base plate (21) and a lower mould fixing plate (22) fixedly arranged on the lower mould base plate (21), the lower mould fixing plate (22) is fixedly provided with a lower mould core (23), a movable mounting groove (221) is arranged inside the lower mould fixing plate (22), a movable mounting plate (24) is arranged in the movable mounting groove (221), the movable mounting plate (24) is arranged at the bottom of the lower mould core (23), a movable gap (25) is formed between the upper surface of the movable mounting plate (24) and the lower surface of the lower mould core (23), the movable mounting plate (24) can move in the limit space of the movable gap (25), a resin shutter (14) is arranged at the bottom of the upper mould push plate (11), the action end of the resin shutter (14) acts on the movable mounting plate (24), and a cavity for forming a product (4) is arranged between the upper mould core and the lower mould core, the upper die is provided with a pouring cup (15) communicated with the die cavity, a water gap thimble (26) is fixedly mounted on the movable mounting plate (24), a lower die core thimble channel (231) matched with the water gap thimble (26) is formed in the lower die core (23), the upper part of the water gap thimble (26) extends into the lower die core thimble channel (231), the upper end part of the water gap thimble (26) is positioned below the water gap channel in the pouring cup (15), and the water gap channel of the pouring cup (15) and the lower die core thimble channel (231) are coaxial through holes.

2. The ejector-pin demolding type injection mold free of square iron and needle plates of claim 1, wherein: go up the mold core and include that mold core (161) are gone up in first mold core (161), second and go up mold core (162), third and go up mold core (163) and fourth and go up mold core (164), mold core (162) and third are gone up in first mold core (161), second and go up mold core (163) fixed mounting and are gone up inside last mold core mounting plate (12), mold core (164) are installed on the fourth go up inside last mould push pedal (11).

3. The ejector-pin demolding type injection mold free of square iron and needle plates of claim 2, wherein: go up inside movable mould core groove (121) that is provided with of mould core mounting panel (12), go up mould core mounting panel (12) both sides and be provided with movable mould core and drive actuating cylinder (17), be provided with in movable mould core groove (121) and go up mould movable mould core (165), the output shaft that movable mould core drove actuating cylinder (17) is connected to go up mould movable mould core (165) and can drive and go up mould movable mould core (165) and remove in movable mould core groove (121), mould core (163) lateral part is provided with the cooperation on the third go up the mould core breach of mould movable mould core (165), the inner wall of going up mould movable mould core (165) can support and lean on to die core (23) lateral wall down.

4. The ejector-pin demolding type injection mold free of square iron and needle plates of claim 3, wherein: the movable mold core driving cylinder (17) is arranged on the side part of the upper mold core mounting plate (12) through a cylinder mounting plate (171).

5. The ejector-pin demolding type injection mold free of square iron and needle plates of claim 2, wherein: the pouring cup (15) is arranged at the top of the upper mold core mounting plate (12), the lower end part of the pouring cup (15) extends into the first upper mold core (161), and a pouring cup hole matched with the pouring cup (15) is formed in the middle of the upper mold base plate (13).

6. The ejector-pin demolding type injection mold free of square iron and needle plates of claim 1, wherein: the movable mounting plate (24) is a concave mounting plate, connecting parts are arranged at two ends of the movable mounting plate (24), two resin shutters (14) are arranged, and the lower ends of the resin shutters (14) are connected to the connecting parts at two ends of the movable mounting plate (24).

7. The ejector-pin demolding type injection mold free of square iron and needle plates of claim 1, wherein: the bottom of the lower mold core (23) is provided with a lower mold core clearance groove for the movable mounting plate (24) to move in.

8. The ejector-pin demolding type injection mold free of square iron and needle plates of claim 1, wherein: the side part of the lower end of the lower mold core (23) is provided with a lower mold core limiting notch, and a limiting block (27) matched with the lower mold core limiting notch is embedded in the lower mold fixing plate (22).

9. The ejector-pin demolding type injection mold free of square iron and needle plates of claim 1, wherein: the die is internally provided with a guide post device (51) which is convenient for die opening and die closing guiding, a pull rod (52) is arranged inside the upper die, the lower end of the pull rod (52) is fixedly connected to the upper die push plate (11), and the upper end of the pull rod (52) extends to the upper part of the upper die base plate (13).