CN111716658A

CN111716658A - Ejecting demoulding structure of plastic mould for light part

Info

Publication number: CN111716658A
Application number: CN202010624398.1A
Authority: CN
Inventors: 艾梅花
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2020-09-29

Abstract

The invention discloses a light-weight plastic mold ejection demolding structure, which comprises an ejector seat, side square blocks, supporting plates, ejection demolding devices, a base, a lower mold, an upper mold and a hanging ring, wherein two sides of the bottom surface of the lower mold are connected with the base through the side square blocks, the supporting plates are arranged between the two side square blocks and connected with the base, the ejection demolding devices are arranged on the supporting plates, and the ejection demolding devices are matched with the lower mold. According to the invention, through the combined arrangement of the first demolding transmission mechanism, the micro motor, the second demolding transmission mechanism, the first translation plate, the two-way threaded screw rod, the second translation plate, the demolding mechanism and the outer shell, the light injection molding part is ejected out gently due to the ejection demolding mode of the spring, and the cracking of the injection molding part due to the large pressure generated by ejection on the light injection molding part is avoided, so that the yield of the injection molding part can be improved, and the complete and nondestructive demolding of the light injection molding part is facilitated.

Description

Ejecting demoulding structure of plastic mould for light part

Technical Field

The invention relates to the technical field of molds, in particular to a plastic mold ejection and demolding structure for a light part.

Background

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 element has the name of "industrial mother".

The mould can be divided into a hardware mould, a plastic mould and a special mould according to the difference of formed materials, for the plastic mould, most of the existing plastic moulds adopt a spring and thimble matching mode to eject the formed injection molding part out of the mould to demold the injection molding part, for the injection molding part made of light plastics, because the injection molding part is very light in quality, the spring and the thimble are adopted to easily cause the overlarge elasticity of the spring to eject the light injection molding part, and the elasticity is big and the light injection molding part is easy to crack, thereby reducing the yield of the injection molding part.

Disclosure of Invention

The invention mainly aims to overcome the defects of the prior art and provides a plastic mold ejection and demolding structure for a light part.

The invention is realized by adopting the following technical scheme: the utility model provides an ejecting demoulding structure of plastic mould for light part, its structure is including footstock, side square, backup pad, ejecting shedder, base, lower mould, last mould, rings, lower mould bottom surface both sides are all connected with the base through the side square, two be equipped with the backup pad between the side square, the backup pad is connected with the base, be equipped with ejecting shedder in the backup pad, ejecting shedder cooperates with the lower mould, the lower mould top is equipped with the mould, it links to each other with the footstock to go up the mould, threaded connection has rings in the outside of lower mould still.

The ejection demoulding device comprises a first demoulding transmission mechanism, a micro motor, a second demoulding transmission mechanism, a first translation plate, a two-way thread lead screw, a second translation plate, a demoulding mechanism and an outer shell, wherein the outer shell is internally provided with the two-way thread lead screw, the two-way thread lead screw is connected with the micro motor, one end of the two-way thread lead screw is connected with the second translation plate, the other end of the two-way thread lead screw is connected with the first translation plate, the first translation plate is connected with one end of the first demoulding transmission mechanism and one end of the second demoulding transmission mechanism, the other end of the first demoulding transmission mechanism and the other end of the second demoulding transmission mechanism are connected with the second translation plate, and the first demoulding transmission mechanism and the second demoulding transmission mechanism are connected with the demoulding mechanism.

Further optimize, first drawing of patterns drive mechanism is the same with second drawing of patterns drive mechanism structure, first drawing of patterns drive mechanism is including spring, gas storage bag, guide bar, stripper plate, uide bushing, No. two guide bars, one side of spring is equipped with a guide bar, and the opposite side is equipped with No. two guide bars, a guide bar, No. two guide bars all are connected with the spring through the uide bushing, the equipartition has the stripper plate that the equidistance formula set up on the spring ring of spring, adjacent two be fixed with the gas storage bag between the stripper plate.

Further optimize, the gas storage bag links to each other with demoulding mechanism, the one end and the translation board of spring link to each other, and the other end meets with No. two translation boards, a guide bar, No. two guide bars and shell body inner wall connection.

Further optimize, a translation board is including nut pair, trapezoidal piece, link board, recess, trapezoidal piece both ends all are equipped with the link board as integral structure with it, the trapezoidal piece has seted up the recess, trapezoidal piece still is equipped with the nut pair, the nut pair carries out threaded connection with two-way screw lead screw, link board and spring coupling.

Further optimize, demoulding mechanism is including bellows, bleeder, adapter, total trachea, air duct, the bellows bottom links to each other with the total trachea through the air duct, the equipartition has the bleeder on the total trachea, bleeder both ends all are equipped with adapter, one the adapter links to each other with the total trachea is alive, another the adapter meets with the end of giving vent to anger of gas storage bag.

Further optimize, the bellows is including bellows body, end ring, roof, even the roof on the bellows body, lower end ring, end ring and air duct seamless intercommunication.

Advantageous effects

Compared with the prior art, the invention provides a light-weight plastic mold ejection and demolding structure, which has the following beneficial effects:

the micromotor is driven to operate, so that the micromotor drives the bidirectional threaded screw rod to rotate clockwise, the nut pair in the first translation plate is arranged in a clockwise thread manner, the nut pair in the second translation plate is arranged in an anticlockwise thread manner, when the bidirectional threaded screw rod rotates, the first translation plate and the second translation plate can translate oppositely, so that the connecting plate extrudes two ends of the spring, the equidistance of the interval of its spring coil and spring coil diminishes, the spring coil position changes then can drive the interval equidistance between stripper plate and reduce, the stripper plate can extrude the gas storage bag when reducing, the gas storage bag pressurized can extrude its inside gas, the gas of extruding can be through adapter, the bleeder, total trachea gets into the bellows body from the air duct, the bellows body then extends to it is ejecting with the injection molding of light, the drawing of patterns of the light injection molding of being convenient for.

In conclusion, the light injection molding part is ejected gently by combining the first demolding transmission mechanism, the micro motor, the second demolding transmission mechanism, the first translation plate, the two-way threaded screw rod, the second translation plate, the demolding mechanism and the outer shell, and the light injection molding part is prevented from being cracked due to the fact that the light injection molding part is ejected out in a spring ejection demolding mode, so that the yield of the injection molding part can be improved, and the light injection molding part can be demolded completely and nondestructively.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural diagram of a light-weight plastic mold ejection and demolding structure of the present invention.

Fig. 2 is a schematic top view of the ejector/stripper device according to the present invention in an operating state.

Fig. 3 is a schematic side view of the first demolding transmission mechanism according to the present invention in an operating state.

Fig. 4 is a schematic structural diagram of an enlarged view of a in fig. 3.

Fig. 5 is a schematic cross-sectional view of a first translation plate according to the present invention.

Fig. 6 is a schematic structural view of the mold-releasing mechanism of the present invention.

Fig. 7 is a schematic bottom view of the bellows of the present invention.

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

the device comprises a top seat 1, a side block 2, a support plate 3, an ejection demoulding device 4, a base 5, a lower die 6, an upper die 7, a lifting ring 8, a first demoulding transmission mechanism gg1, a micro-motor gg2, a second demoulding transmission mechanism gg3, a first translation plate gg4, a two-way threaded screw gg5, a second translation plate gg6, a demoulding mechanism gg7, an outer shell gg8, a spring 1g1, an air storage bag 1g2, a first guide rod 1g3, an extrusion plate 1g4, a guide sleeve 1g5, a second guide rod 1g6, a nut pair 4g1, a trapezoidal block 4g2, a connecting plate 4g3, a groove 4g4, a corrugated pipe 7g1, a branch pipe 7g2, an adapter 7g3, a main air pipe 7g4, an air duct 7g5, a corrugated pipe body 11, a bottom ring 22 and a top plate 33.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-6, the present invention provides a technical solution of a light-weight plastic mold ejection and demolding structure: its structure is including footstock 1, side piece 2, backup pad 3, ejecting shedder 4, base 5, lower mould 6, go up mould 7,

rings

8, 6 bottom surfaces both sides of lower mould are all connected with base 5 through side square 2, two be equipped with backup pad 3 between the side square 2, backup pad 3 is connected with base 5, be equipped with ejecting shedder 4 in the backup pad 3, ejecting shedder 4 cooperates with

lower mould

6, 6 tops of lower mould are equipped with mould 7, it links to each other with footstock 1 to go up mould 7, the outside of lower mould 6 is threaded connection has rings 8 still.

The ejection demoulding device 4 comprises a first demoulding transmission mechanism gg1, a micro-motor gg2, a second demoulding transmission mechanism gg3, a first translation plate gg4, a bidirectional thread screw gg5, a second translation plate gg6, a demoulding mechanism gg7 and an outer shell gg8, a bidirectional thread screw gg5 is arranged in the outer shell gg8, the bidirectional thread screw gg5 is connected with the micro-motor gg2, one end of the bidirectional thread screw gg5 is connected with the second translation plate gg6, the other end of the bidirectional thread screw gg5 is connected with the first translation plate gg4, the first translation plate gg4 is connected with one end of the first demoulding transmission mechanism gg1 and one end of the second demoulding transmission mechanism gg3, the other ends of the first demoulding transmission mechanism gg1 and the second demoulding transmission mechanism gg3 are connected with the second translation plate gg6, and the first demoulding transmission mechanism gg 56 and the second demoulding transmission mechanism gg 8653 are connected with the demoulding transmission mechanism gg 86 3.

The first demoulding transmission mechanism gg1 and the second demoulding transmission mechanism gg3 have the same structure, the first demoulding transmission mechanism gg1 comprises a spring 1g1, an air storage bag 1g2, a first guide rod 1g3, a squeezing plate 1g4, a guide sleeve 1g5 and a second guide rod 1g6, one side of the spring 1g1 is provided with a first guide rod 1g3, the other side is provided with a second guide rod 1g6, the first guide rod 1g3 and the second guide rod 1g6 are both connected with a spring 1g1 through a guide sleeve 1g5, extrusion plates 1g4 are arranged on a spring ring of the spring 1g1 in an equidistant mode, an air storage bag 1g2 is fixed between every two adjacent extrusion plates 1g4, the air storage bag 1g2 is connected with a demoulding mechanism gg7, one end of the spring 1g1 is connected with a first translation plate gg4, the other end is connected with a second translation plate gg6, the first guide rod 1g3 and the second guide rod 1g6 are connected with the inner wall of the outer shell gg 8.

Demoulding mechanism gg7 is including bellows 7g1, bleeder 7g2, adapter 7g3, total trachea 7g4, air duct 7g5, bellows 7g1 bottom is passed through air duct 7g5 and is linked to each other with total trachea 7g4, the equipartition has bleeder 7g2 on the total trachea 7g4, the two ends of bleeder 7g2 all are equipped with adapter 7g3, one adapter 7g3 and total trachea 7g4 are articulated, another adapter 7g3 meets with the gas outlet end of gas storage bag 1g 2.

Example 2

Referring to fig. 1-7, the present invention provides a technical solution of a light-weight plastic mold ejection and demolding structure: its structure is including footstock 1, side piece 2, backup pad 3, ejecting shedder 4, base 5, lower mould 6, go up mould 7,

rings

lower mould

The combination of the bidirectional threaded screw gg5, the first translation plate gg4 and the second translation plate gg6 is that the bidirectional threaded screw gg5 can rotate under the driving action of the micro-motor gg2, and the forward rotation first translation plate gg4 and the second translation plate gg6 can translate oppositely, so that the first demolding transmission mechanism gg1 and the second demolding transmission mechanism gg3 are pressed, and the demolding mechanism gg7 is convenient to provide power to eject out an injection molding piece.

First drawing of patterns drive mechanism gg1 is the same with second drawing of patterns drive mechanism gg3 structure, first drawing of patterns drive mechanism gg1 is including spring 1g1, gas storage bag 1g2, guide bar 1g3, stripper plate 1g4, uide bushing 1g5, No. two guide bar 1g6, one side of spring 1g1 is equipped with No. one guide bar 1g3, and the other side is equipped with No. two guide bar 1g6, No. one guide bar 1g3, No. two guide bar 1g6 all are connected with spring 1g1 through guide bar 1g5, the epaxial equipartition of spring 1g1 has the stripper plate 1g4 that the equidistance formula set up, adjacent two be fixed with gas storage bag 1g2 between stripper plate 1g 4.

The spring 1g1 and the extrusion plate 1g4 are combined, and the spring ring are increased or reduced at equal intervals when the spring is stretched, so that the interval between the extrusion plate and the extrusion plate is increased or reduced at equal intervals, the air storage bag 1g2 can be extruded when the spring is reduced, and the air storage bag 1g2 can be gradually reset by releasing the pressure applied to the air storage bag 1g2 when the spring is increased.

The gas storage bag 1g2 links to each other with demoulding mechanism gg7, spring 1g 1's one end links to each other with a translation board gg4, and the other end meets with No. two translation boards gg6, No. one guide bar 1g3, No. two guide bar 1g6 and shell body gg8 inner wall connection.

The air storage bag 1g2 is arranged to be capable of exhausting air under pressure and recovering air suction.

The first translation plate gg4 comprises a nut pair 4g1, a trapezoidal block 4g2, a connecting plate 4g3 and a groove 4g4, connecting plates 4g3 integrated with the trapezoidal block 4g 3538 are arranged at two ends of the trapezoidal block 4g2, the groove 4g4 is formed in the trapezoidal block 4g2, the trapezoidal block 4g2 is further provided with the nut pair 4g1, the nut pair 4g1 is in threaded connection with the bidirectional threaded lead screw gg5, and the connecting plate 4g3 is connected with a spring 1g 1.

The nut pair 4g1 of the first translation plate gg4 is arranged in a clockwise thread mode, and the nut pair in the second translation plate gg6 is arranged in a counterclockwise thread mode, so that the first translation plate gg4 and the second translation plate gg6 can translate oppositely or reversely when the bidirectional thread screw gg5 rotates;

the groove 4g4 can accommodate the micromotor gg2, so that space is saved.

The adapter 7g3 is arranged so that the branch tube 7g2 can adapt to the compression of the spring 1g1 to change the position of the air reservoir 1g 2.

Bellows 7g1 is including bellows body 11, end ring 22, roof 33, even roof 33 is gone up to bellows body 11, lower end ring 22, end ring 22 and the seamless intercommunication of air duct 7g 5.

The arrangement of the corrugated pipe 7g1 is characterized in that when the air is filled inwards, the corrugated pipe body 11 can be slowly extended, so that the injection molding part is ejected out, the injection molding part is conveniently demoulded, and the light injection molding part is prevented from being popped.

The working principle of the invention is as follows: by driving the micro-motor gg2 to operate, the micro-motor gg2 drives the two-way threaded screw gg5 to rotate clockwise, the nut pair 4g1 of the first translation plate gg4 is arranged in a clockwise threaded manner, and the nut pair in the second translation plate gg6 is arranged in a counterclockwise threaded manner, so that when the two-way threaded screw gg5 rotates, the first translation plate gg4 and the second translation plate gg6 can translate oppositely, the connecting plate 4g3 can extrude the two ends of the spring 1g1, when the spring 1g1 is compressed, the equal distance between the spring ring and the spring ring is reduced, the position of the spring ring is changed, the distance between the extrusion plate 4 and the extrusion plate 1g4 is reduced, the extrusion plate 1g4 can extrude the gas storage bag 1g2, the gas storage bag 1g2 can extrude gas in the gas storage bag through the adapter 397 g3, the gas pipe 7g 4642 and the total bellows 5, the corrugated pipe body 11 is extended, so that a light injection molding piece is ejected out, and the light injection molding piece is convenient to demould;

the micro motor gg2 controls the bidirectional threaded screw gg5 to rotate anticlockwise, so that the first translation plate gg4 and the second translation plate gg6 translate oppositely, the connecting plate 4g3 gradually releases pressure on the spring 1g1, the spring 1g1 is gradually reset, the distance between the spring ring and the spring ring is gradually increased at equal intervals when the spring 1g1 gradually resets, the distance between the extrusion plate 1g4 and the extrusion plate 1g4 is gradually increased, the extrusion plate 1g4 gradually releases extrusion on the gas storage bag 1g2, the gas storage bag 1g2 gradually resets and expands to suck gas in the corrugated pipe body 11 away, and the self weight of the corrugated pipe 7g1 enables the corrugated pipe 7g1 to be compressed and reset.

In summary, the technical progress obtained by the invention compared with the prior art is as follows: according to the invention, through the combined arrangement of the first demolding transmission mechanism, the micro motor, the second demolding transmission mechanism, the first translation plate, the two-way threaded screw rod, the second translation plate, the demolding mechanism and the outer shell, the light injection molding part is ejected out gently due to the ejection demolding mode of the spring, and the cracking of the injection molding part due to the large pressure generated by ejection on the light injection molding part is avoided, so that the yield of the injection molding part can be improved, and the complete and nondestructive demolding of the light injection molding part is facilitated.

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 various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an ejecting demoulding structure of plastic mould for light part, its structure is including footstock (1), side piece (2), backup pad (3), ejecting shedder (4), base (5), lower mould (6), go up mould (7), rings (8), lower mould (6) are connected with base (5) through side square (2), are equipped with backup pad (3) that link to each other with base (5) between two side squares (2), be equipped with on backup pad (3) with lower mould (6) complex ejecting shedder (4) lower mould (6) and last mould (7) cooperation, it links to each other with footstock (1) to go up mould (7), lower mould (6) still link to have rings (8), its characterized in that:

the ejection demoulding device (4) comprises a first demoulding transmission mechanism (gg1), a micro motor (gg2), a second demoulding transmission mechanism (gg3), a first translation plate (gg4), a bidirectional threaded screw rod (gg5), a second translation plate (gg6), a demoulding mechanism (gg7) and an outer shell (gg8), wherein the outer shell (gg8) is internally provided with the bidirectional threaded screw rod (gg5) connected with the micro motor (gg2), the bidirectional threaded screw rod (gg5) is connected with the second translation plate (gg6) and the first translation plate (gg4), the second translation plate (gg6) and the first translation plate (gg4) are connected with the first demoulding transmission mechanism (gg1) and the second demoulding transmission mechanism (gg3), and the first demoulding transmission mechanism (gg1) and the second demoulding transmission mechanism (gg3) are respectively provided with the demoulding mechanism (gg 7).

2. The light-weight plastic mold ejection and demolding structure for the light-weight part, as recited in claim 1, wherein: first drawing of patterns drive mechanism (gg1) is including spring (1g1), gas storage bag (1g2), guide bar (1g3), stripper plate (1g4), uide bushing (1g5), No. two guide bars (1g6), spring (1g1) even have guide bar (1g3), No. two guide bars (1g6) through uide bushing (1g5), the equipartition has gas storage bag (1g2), stripper plate (1g4) of alternate setting on spring (1g 1).

3. The light-weight plastic mold ejection and demolding structure for the light-weight part, as recited in claim 2, wherein: gas storage bag (1g2) link to each other with demoulding mechanism (gg7), spring (1g1) meet with a translation board (gg4), No. two translation boards (gg6), No. one guide bar (1g3), No. two guide bar (1g6) are connected with shell body (gg 8).

4. The light-weight plastic mold ejection and demolding structure for the light-weight part as claimed in claim 1 or 3, wherein: the first translation plate (gg4) comprises a nut pair (4g1), a trapezoidal block (4g2), a connecting plate (4g3) and a groove (4g4), the trapezoidal block (4g2) and the connecting plate (4g3) are of an integrated structure, the trapezoidal block (4g2) is provided with the groove (4g4) and the nut pair (4g1), the nut pair (4g1) is connected with a bidirectional threaded screw rod (gg5), and the connecting plate (4g3) is connected with a spring (1g 1).

5. The light-weight plastic mold ejection and demolding structure for the light-weight part, as recited in claim 1, wherein: demoulding mechanism (gg7) is including bellows (7g1), bleeder pipe (7g2), adapter (7g3), total trachea (7g4), air duct (7g5), bellows (7g1) link to each other with total trachea (7g4) through air duct (7g5), total trachea (7g4) link to each other with bleeder pipe (7g2), bleeder pipe (7g2) meet with gas storage bag (1g2) through adapter (7g 3).

6. The light-weight plastic mold ejection and demolding structure for the light-weight part, as claimed in claim 5, wherein: bellows (7g1) are including bellows body (11), end ring (22), roof (33), even roof (33) are gone up in bellows body (11), lower end ring (22), end ring (22) and air duct (7g5) intercommunication.