CN211542236U - Thin-wall injection mold convenient to demold - Google Patents

Abstract

The utility model discloses a thin wall injection mold convenient to drawing of patterns, including last mould seat, bed die, cope match-plate pattern, lower bolster, upper die benevolence and lower mould benevolence, upper and lower bolster is located upper and lower mould seat respectively, upper and lower mould benevolence is located upper and lower bolster respectively, the embedded inner chamber inserts that is equipped with of lower bolster, upper die benevolence, lower die benevolence, inner chamber inserts form the thin wall die cavity of moulding plastics jointly, be provided with inner chamber inserts fixed plate and thimble board between lower bolster and the bed die, the inner chamber inserts sets up on the inner chamber inserts fixed plate, be provided with the thimble on the thimble board, the thimble runs through the inner chamber inserts in the thin wall die cavity of moulding plastics, the thimble board with still be provided with the closure dead lever between the lower bolster. The utility model discloses a thin wall injection mold convenient to drawing of patterns is convenient for ejecting fashioned thin wall injection molding, realizes the quick drawing of patterns of formed part.

Description

Thin-wall injection mold convenient to demold

Technical Field

The utility model relates to an injection mold field, concretely relates to thin wall injection mold convenient to drawing of patterns.

Background

Plastic products are widely applied to daily life of people, and the plastic products are manufactured by injection molding or blow molding of a mold. An injection mold is a tool for producing plastic products; and is also a tool for giving the plastic product complete structure and accurate dimension. Injection molding is a process used to mass produce parts of some complex shapes. Specifically, the material melted by heating is injected into a die cavity from high pressure, and a formed product is obtained after cooling and solidification.

When the injection mold is used for demolding, the ejector pins are generally adopted to eject the molded part from the lower part of the molded part, the thickness and the volume of the shell of the existing injection mold tend to be developed in the direction of ultra-thinning and miniaturization, and the thin-wall injection mold is thin in wall thickness and cannot be provided with the ejector pins from the lower part of the thin-wall injection mold, so that the injection molded part is difficult to eject from the mold through the ejector pins.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a thin wall injection mold convenient to drawing of patterns, it is ejecting with fashioned thin wall injection molding to be convenient for, realizes the quick drawing of patterns of formed part.

In order to solve the technical problem, the utility model provides a thin wall injection mold convenient to drawing of patterns, including last mould seat, bed die, cope match-plate pattern, lower bolster, upper die benevolence and lower mould benevolence, upper and lower bolster is located upper and lower mould seat respectively, upper and lower mould benevolence is located upper and lower bolster respectively, the embedded inner chamber inserts that is equipped with of lower bolster, upper die benevolence, lower die benevolence, inner chamber inserts form the thin wall die cavity of moulding plastics jointly, be provided with inner chamber inserts fixed plate and thimble board between lower bolster and the bed die, the inner chamber inserts sets up on the inner chamber inserts fixed plate, be provided with the thimble on the thimble board, the thimble runs through the inner chamber inserts in the thin wall die cavity of moulding plastics, the thimble board with still be provided with the closure dead lever between the lower bolster.

The utility model discloses a preferred embodiment, further include the embedded a plurality of inner chamber inserts that are equipped with of lower bolster, it is a plurality of form a plurality of thin wall die cavities of moulding plastics between inner chamber inserts and upper mould benevolence, the lower mould benevolence.

The utility model discloses a preferred embodiment, further include be provided with the mouth of moulding plastics on the upper die base, it is provided with the pipeline of moulding plastics to mould plastics mouthful below, the pipeline of moulding plastics runs through the cope match-plate pattern, the pipeline of moulding plastics communicates with a plurality of thin wall die cavities of moulding plastics respectively.

The utility model discloses a preferred embodiment, further include that every thin wall mould plastics the die cavity and the pipeline of moulding plastics that the mouth communicates of moulding plastics diameter and the stroke of moulding plastics the same.

The utility model discloses a preferred embodiment, further include four angles departments in the cope match-plate pattern are provided with the guide pin bushing, four angles departments of lower bolster be provided with guide pin bushing complex guide pillar, the guide pillar is followed the guide pin bushing motion is accomplished upper and lower template compound die and die sinking.

In a preferred embodiment of the present invention, the mold further comprises a plurality of cooling water pipes which are independently arranged, wherein the cooling water pipes are respectively arranged in the upper mold plate and the upper mold core, and the lower mold plate and the lower mold core, one side of the upper mold plate is provided with a plurality of water inlets which are communicated with the cooling water pipes, and the other side of the upper mold plate is provided with a water outlet; one side of the lower template is provided with a plurality of water inlets communicated with the cooling water pipe, and the other side of the lower template is provided with a water outlet.

The utility model discloses a preferred embodiment, further include the cope match-plate pattern and the die holder outside still are provided with hangs the mould fixed plate.

The utility model has the advantages that: the utility model discloses an inner chamber inserts inlays to be established in the lower bolster, through inner chamber inserts and upper and lower mould benevolence common formation die cavity of moulding plastics, and set up the thimble that can insert in the die cavity of moulding plastics in the inner chamber inserts, when moulding plastics, the rigidity of inner chamber inserts and thimble, after the completion of moulding plastics, at the in-process of drawing of patterns, embedded chamber spare is jack-up earlier the formed part from the lower bolster, realize the drawing of patterns of formed part and lower bolster, then, the thimble is ejecting the formed part from the embedded chamber spare outside, realize the drawing of patterns of formed part and embedded chamber spare.

Drawings

Fig. 1 is a schematic view of the overall external structure of the present invention;

fig. 2 is a schematic structural view of the inner cavity insert and the thimble of the present invention;

fig. 3 is a schematic diagram of the internal structure of the present invention.

The reference numbers in the figures illustrate: 1. an upper die base; 2. a lower die base; 3. mounting a template; 4. a lower template; 5. an upper die core; 6. a lower die core; 7. an inner cavity insert; 8. a thin-wall injection molding cavity; 9. an inner cavity insert fixing plate; 10. An ejector plate; 11. a thimble; 12. locking the fixed rod; 13. an injection molding port; 14. injecting a pipeline; 15. a guide sleeve; 16. a guide post; 17. a cooling water pipe; 18. a water inlet; 19. a water outlet; 20. and (5) hanging a mould fixing plate.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

Referring to fig. 1-3, an embodiment of the thin-wall injection mold convenient for demolding of the present invention includes an upper mold base 1, a lower mold base 2, an upper mold plate 3, a lower mold plate 4, an upper mold core 5 and a lower mold core 6, wherein the upper mold plate and the lower mold plate are respectively located in the upper mold base and the lower mold base, the upper mold core and the lower mold core are respectively located in the upper mold plate and the lower mold plate, an inner cavity insert 7 is embedded in the lower mold plate 4, the upper mold core 5, the lower mold core 6 and the inner cavity insert 7 together form a thin-wall injection molding cavity 8, an inner cavity insert fixing plate 9 and an ejector plate 10 are arranged between the lower mold plate 4 and the lower mold base 2, the inner cavity insert 7 is arranged on the inner cavity insert fixing plate 9, an ejector pin 11 is arranged on the ejector plate 10, the ejector pin 11 penetrates through the inner cavity insert 7 and is inserted into the thin-wall injection molding cavity 8, before injection molding, the upper template 3 and the lower template 4 are fixed in a matched mode, the ejector plate 10 and the lower template 4 are fixed through the locking fixing rod 12, it is guaranteed that the positions of the inner cavity insert 7 and the ejector 11 are fixed in the injection molding process, after injection molding is completed, in the demolding process, the embedded cavity piece 7 firstly jacks up the formed piece from the lower template 4, demolding of the formed piece and the lower template 4 is achieved, then the ejector 11 ejects the formed piece from the outer side of the embedded cavity piece 7, and demolding of the formed piece and the embedded cavity piece 7 is achieved.

Referring to fig. 3, a plurality of inner cavity inserts 7 are embedded in the lower template 1, a plurality of thin-wall injection molding cavities 8 are formed among the inner cavity inserts 7, the upper mold core 5 and the lower mold core 6, and a plurality of mold forming products can be produced at one time by arranging the thin-wall injection molding cavities 8.

Specifically, be provided with the mouth 13 of moulding plastics on the upper die base 1, the mouth 13 below of moulding plastics is provided with the pipeline 14 of moulding plastics, the pipeline 14 of moulding plastics runs through cope match-plate pattern 3, the pipeline 14 of moulding plastics communicates with a plurality of thin wall injection moulding cavities 8 respectively, can mould plastics to a plurality of thin wall injection moulding cavities 8 simultaneously through a mouth 13 of moulding plastics, has improved the efficiency of moulding plastics.

In this embodiment, in order to ensure that the injection molding effect of the mold products in the thin-wall injection molding cavities 8 is the same, the diameter and the injection stroke of the injection molding pipeline 14, which is communicated with the injection port 13, of each thin-wall injection molding cavity 8 are set to be the same, and the temperature and the flow of the injection molding material injected into each thin-wall injection molding cavity 8 are ensured to be consistent, so that the injection molding effect in all the thin-wall injection molding cavities 8 is ensured to be the same.

Specifically, guide sleeves 15 are arranged at four corners in the upper template 3, guide posts 16 matched with the guide sleeves 15 are arranged at four corners of the lower template 4, the guide posts 16 move along the guide sleeves 15 to complete the die assembly and die opening of the upper template and the lower template, the positions of the upper template and the lower template after die assembly are more accurate through the matching of the guide posts 16 and the guide sleeves 15, the shape of a thin-wall injection molding cavity 8 is ensured, and the quality of a mold forming product is ensured.

In order to enable the injection molding to be rapidly cooled and molded, the injection molding machine further comprises a plurality of cooling water pipes 17 which are independently arranged, the cooling water pipes 17 are respectively arranged in the upper template 3, the upper die core 5, the lower template 4 and the lower die core 6 in a penetrating manner, a plurality of water inlets 18 communicated with the cooling water pipes 17 are arranged on one side of the upper template 3, and a water outlet 19 is arranged on the other side of the upper template 3; one side of the lower template 4 is provided with a plurality of water inlets 18 communicated with the cooling water pipe 17, the other side of the lower template 4 is provided with a water outlet 19, cooling water is continuously injected into the cooling water pipe 17 from the water inlets 18 and is discharged from the water outlet 19, so that the cooling water is continuously refreshed and flows, and an injection molding part is cooled and molded at the fastest speed.

Specifically, a mold hanging fixing plate 20 is further disposed outside the upper mold plate 3 and the lower mold base 2, and the mold hanging fixing plate 20 is used for fixing each component of the injection mold when the injection mold does not work.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

Claims (7)

1. The utility model provides a thin wall injection mold convenient to drawing of patterns, includes upper die base, bed die base, cope match-plate pattern, lower bolster, upper mold benevolence and lower mould benevolence, upper and lower bolster are located upper and lower bed die base respectively, upper and lower mould benevolence is located upper and lower bolster respectively, its characterized in that, the embedded inner chamber inserts that is equipped with of lower bolster, upper mold benevolence, lower mold benevolence, inner chamber inserts form thin wall injection mold cavity jointly, be provided with inner chamber inserts fixed plate and thimble board between lower bolster and the bed die base, the inner chamber inserts sets up on the inner chamber inserts fixed plate, be provided with the thimble on the thimble board, the thimble runs through in the inner chamber inserts the thin wall injection mold cavity, the thimble board with still be provided with the closure dead lever between the lower bolster.

2. The thin-wall injection mold facilitating demolding according to claim 1, wherein a plurality of inner cavity inserts are embedded in the lower template, and a plurality of thin-wall injection molding cavities are formed among the inner cavity inserts, the upper mold core and the lower mold core.

3. The thin-wall injection mold facilitating demolding as claimed in claim 2, wherein an injection port is formed in the upper mold base, an injection pipeline is arranged below the injection port, the injection pipeline penetrates through the upper mold plate, and the injection pipeline is respectively communicated with the plurality of thin-wall injection cavities.

4. The thin-walled injection mold facilitating demolding as claimed in claim 3, wherein each thin-walled injection cavity has the same diameter and injection stroke of an injection pipe communicating with the injection port.

5. The thin-wall injection mold convenient for demolding as claimed in claim 1, wherein guide sleeves are arranged at four corners in the upper mold plate, guide posts matched with the guide sleeves are arranged at four corners of the lower mold plate, and the guide posts move along the guide sleeves to complete mold closing and mold opening of the upper mold plate and the lower mold plate.

6. The thin-wall injection mold convenient for demolding as claimed in claim 1, further comprising a plurality of cooling water pipes which are independently arranged, wherein the cooling water pipes are respectively arranged in the upper mold plate and the upper mold core, and in the lower mold plate and the lower mold core in a penetrating manner, a plurality of water inlets communicated with the cooling water pipes are arranged on one side of the upper mold plate, and a water outlet is arranged on the other side of the upper mold plate; one side of the lower template is provided with a plurality of water inlets communicated with the cooling water pipe, and the other side of the lower template is provided with a water outlet.

7. The thin-walled injection mold facilitating demolding as claimed in claim 1, wherein a mold hanging fixing plate is further provided outside the upper mold plate and the lower mold base.

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