CN217293367U

CN217293367U - Secondary die assembly and locking mechanism for thick-wall lens die of automobile headlamp

Info

Publication number: CN217293367U
Application number: CN202123367365.2U
Authority: CN
Inventors: 卢奇土
Original assignee: Taizhou Renxin Mould Co ltd
Current assignee: Taizhou Renxin Mould Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-08-26
Anticipated expiration: 2031-12-29

Abstract

The utility model belongs to the technical field of the mould, especially, relate to a car headlamp thick wall lens mould secondary compound die clamping mechanism. The utility model discloses, mould plastics the mould including lens lower mould of moulding plastics and lens, lens mould plastics and be equipped with lens shaping insert piece in the lower mould. The utility model discloses in the in-process of moulding plastics, mould plastics earlier lens lower mould and lens and mould plastics and be close to each other, make secondary compound die shaping subassembly and lens shaping insert the piece and be close to, and reserve the shaping space that forms between great secondary compound die shaping subassembly and the lens shaping insert piece, the completion back of moulding plastics, mould plastics lower mould and lens with the lens and mould plastics and further be close to each other, carry out secondary punch forming through the cooperation between secondary compound die shaping subassembly and the lens shaping insert piece, dislocation injection molding and the crisscross setting of secondary compound die shaping subassembly, mould plastics and the mutual noninterference of punching press, and adopt the secondary compound die structure, ensure the homogeneity of moulding plastics the in-process piece of moulding plastics, the piece precision of moulding after the shaping is higher.

Description

Secondary die assembly and locking mechanism for thick-wall lens die of automobile headlamp

Technical Field

The utility model belongs to the technical field of the mould, a car headlamp thick wall lens mould secondary compound die clamping mechanism is related to.

Background

The automobile lamp lens is usually used for xenon headlights, compared with the common headlights, a set of lens system is added in front of the bulb, so that the appearance is attractive, and the brightness is higher than that of the common headlights. The light of the common headlight is directly emitted by the bulb and the light is emitted forward by the reflector bowl at the rear part, so that the light is scattered and wasted greatly. The lens can change most of light rays scattered out of the bulb, and effectively collect the light rays (similar to a magnifying glass principle), so that the road lighting efficiency is improved. In the prior art, a single mold is adopted for one-time injection molding aiming at the injection molding of the lens of the car lamp. The uniformity of the plastic part is difficult to ensure in the production process, and the forming precision is more common.

In order to overcome the defects of the prior art, people continuously explore and provide various solutions, for example, a chinese patent discloses an automobile headlamp lens rain heat preservation mold [ application number: 201922209538.4], the die comprises a lower die plate, positioning columns are fixed on four sides of the top end of the lower die plate, an upper die plate is sleeved on the positioning columns, push posts are arranged on the top end of the upper die plate, the push posts penetrate through the upper die plate and are connected with lower pressing blocks, a die placing groove is arranged right below the lower pressing blocks and is arranged in the middle of the top end of the lower die plate, fixing mechanisms are arranged on two sides of the die placing groove, a forming die is detachably connected between the fixing mechanisms, and a raindrop bulge is arranged on the outer wall of the upper portion of the forming die and a heating pipe is arranged inside the raindrop bulge. The utility model discloses a fixed establishment who sets up, when the car headlight lens of different models need be processed, only need to change the inside forming die of mould standing groove can to simplify forming die's installation and dismantlement, increased car headlight lens rain heat preservation mould's practicality. But the proposal still has the defect that the uniformity of the plastic part is difficult to ensure in the production process and the forming precision is more common.

Disclosure of Invention

The utility model aims at the above problem, a car headlamp thick wall lens mould secondary compound die clamping mechanism is provided.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

the utility model provides a car headlamp thick wall lens mould secondary die clamping mechanism, moulds plastics the mould including lens lower mould and lens, lens mould plastics and be equipped with lens shaping insert in the lower mould, lens mould plastics and be equipped with secondary die assembly shaping subassembly in the mould, secondary die assembly shaping subassembly corresponding with the position of lens shaping insert, lens mould plastics and be equipped with the dislocation injection molding on the mould, dislocation injection molding and the crisscross setting of secondary die assembly shaping subassembly, the dislocation injection molding corresponding with the position of lens shaping insert, lens mould plastics lower mould below be equipped with ejecting portion.

In foretell car headlamp thick wall lens mould secondary compound die clamping mechanism, secondary compound die shaping subassembly including set up the compound die stamping block in the lens mould of moulding plastics, compound die stamping block corresponding with the position of lens shaping insert piece, compound die stamping block top be equipped with the connecting piece, connecting piece and lens mould plastics and go up the mould and link to each other.

In the secondary die assembly and locking mechanism for the thick-wall lens die of the automobile headlamp, the connecting piece comprises a stamping block connecting plate arranged on an upper die for lens injection molding, the stamping block connecting plate is connected with the die assembly stamping block, and the cross sectional area of the stamping block connecting plate is larger than that of the die assembly stamping block.

In foretell car headlamp thick wall lens mould secondary compound die clamping mechanism, lens shaping insert piece including set up the lens shaping insert plate in the lens injection lower mould, lens shaping insert inboard be equipped with lens secondary forming chamber, lens secondary forming chamber and compound die punching press piece the position corresponding.

In foretell car headlamp thick wall lens mould secondary die locking mechanism, the dislocation injection molding including set up the mainboard of moulding plastics on the mould is moulded plastics to lens, the mainboard of moulding plastics in be equipped with the owner's hole of moulding plastics, owner's hole bottom of moulding plastics be equipped with the connecting portion of moulding plastics, the position of connecting portion of moulding plastics and lens shaping inlay board corresponding.

In foretell car headlamp thick wall lens mould secondary compound die clamping mechanism, the connecting portion of moulding plastics including setting up the connecting pipe of moulding plastics in the lens mould plastics, the connecting pipe of moulding plastics be linked together the setting with the master hole of moulding plastics, the connecting pipe of moulding plastics and crisscross setting of compound die punching press piece.

In foretell car headlamp thick wall lens mould secondary compound die clamping mechanism, the position of connecting pipe and lens shaping insert board of moulding plastics corresponding, lens shaping insert inboard be equipped with the material transfer way, material transfer way one end link to each other with the connecting pipe of moulding plastics, the other end links to each other with lens secondary forming chamber.

In the secondary die assembly and locking mechanism for the thick-wall lens die of the automobile headlamp, the ejection part comprises an ejector rod fixing plate arranged below the lens injection lower die, a plurality of ejector rod plates are arranged in the ejector rod fixing plate, and the ejector rod plates correspond to the secondary lens forming cavity in position.

In the secondary die assembly and locking mechanism for the thick-wall lens die of the automobile headlamp, the bottom of the ejector plate is provided with a fixed substrate, and the cross sectional area of the fixed substrate is larger than that of the ejector fixing plate.

In the secondary die assembly and locking mechanism for the thick-wall lens die of the automobile headlamp, the fixed substrate is provided with a plurality of pieces of anti-deflection iron which are symmetrical along the central line of the fixed substrate, and the ejector rod fixing plate is in sliding fit with the pieces of anti-deflection iron.

Compared with the prior art, the utility model has the advantages of:

1. the utility model discloses in the injection molding process, first lens injection molding lower mould and lens injection molding upper mould are close to each other, make secondary compound die forming subassembly and lens forming insert piece be close to, and reserve the shaping space that forms between great secondary compound die forming subassembly and the lens forming insert piece, at this moment pour into the melting material into the shaping space that forms between secondary compound die forming subassembly and the lens forming insert piece through the dislocation injection molding, after the completion of moulding plastics, lens injection molding lower mould and lens injection molding upper mould are further close to each other, carry out secondary stamping forming through the cooperation between secondary compound die forming subassembly and the lens forming insert piece, dislocation injection molding and secondary compound die forming subassembly staggered arrangement, the mutual noninterference of injection molding and punching, the overall structure distributes rationally, and adopt the secondary compound die structure, guarantee the homogeneity of moulding in the injection molding process, the precision of the molded plastic part is higher.

2. The utility model discloses at the ejector pin fixed plate removal in-process, through ejector pin fixed plate and prevent sliding fit between the cunning iron, play limiting displacement to the ejector pin fixed plate, avoid ejector pin fixed plate and ejector pin board to take place the angular deflection at the removal in-process, improved ejecting accuracy.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

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

Fig. 2 is a schematic structural view in another direction of the present invention.

Fig. 3 is a schematic view of a partial structure of the present invention.

Fig. 4 is a schematic view of a partial structure in another direction of the present invention.

In the figure: the lens injection molding device comprises a lens injection molding lower die 1, a lens injection molding upper die 2, a lens molding insert piece 3, a secondary die assembly molding component 4, a dislocation injection molding piece 5, an ejection part 6, a die assembly stamping block 7, a connecting piece 8, a stamping block connecting plate 9, a lens molding insert plate 10, a lens secondary molding cavity 11, an injection molding main plate 12, an injection molding main hole 13, an injection molding connecting part 14, an injection molding connecting pipe 15, a material conveying channel 16, an ejector rod fixing plate 17, an ejector rod plate 18, a fixing base plate 19 and anti-bias iron 20.

Detailed Description

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

As shown in fig. 1-4, a car headlamp thick wall lens mould secondary die closing clamping mechanism, mould 2 including lens mould plastics lower mould 1 and lens mould plastics, lens mould plastics lower mould 1 in be equipped with lens shaping insert 3, lens mould plastics and be equipped with secondary die closing moulding subassembly 4 in the mould 2, secondary die closing moulding subassembly 4 corresponding with the position of lens shaping insert 3, lens mould plastics and be equipped with dislocation injection molding 5 on the mould 2, dislocation injection molding 5 and the crisscross setting of secondary die closing moulding subassembly 4, dislocation injection molding 5 corresponding with the position of lens shaping insert 3, lens mould plastics lower mould 1 below be equipped with ejecting portion 6.

In the embodiment, in the injection molding process, the lens injection lower mold 1 and the lens injection upper mold 2 are firstly close to each other, so that the secondary mold closing molding component 4 is close to the lens molding insert piece 3, a larger molding space formed between the secondary mold closing molding component 4 and the lens molding insert piece 3 is reserved, at the moment, a molten material is injected into the molding space formed between the secondary mold closing molding component 4 and the lens molding insert piece 3 through the dislocation injection molding piece 5, after the injection molding is finished, the lens injection lower mold 1 and the lens injection upper mold 2 are further close to each other, the secondary press molding is carried out through the matching between the secondary mold closing molding component 4 and the lens molding insert piece 3, the dislocation injection molding piece 5 and the secondary mold closing molding component 4 are arranged in a staggered mode, the injection molding and the stamping are not interfered with each other, the whole structure is reasonable in distribution, and a secondary mold closing structure is adopted, the uniformity of the plastic part in the injection molding process is ensured, and the precision of the molded plastic part is higher.

Referring to fig. 1-4, the secondary mold closing and forming assembly 4 includes a mold closing punch 7 disposed in the lens injection upper mold 2, the mold closing punch 7 corresponds to the lens forming insert 3, a connecting member 8 is disposed on the top of the mold closing punch 7, and the connecting member 8 is connected to the lens injection upper mold 2.

Specifically, the connecting piece 8 is used for connecting and fixing the die assembly stamping block 7, in the injection molding process, a primary plastic part is formed through the matching between the die assembly stamping block 7 and the lens forming insert piece 3, then the die assembly stamping block 7 is moved towards one end of the lens forming insert piece 3, secondary die assembly stamping is carried out, a secondary die assembly structure is adopted, the uniformity of the plastic part in the injection molding process is ensured, and the precision of the molded plastic part is higher.

Referring to fig. 3 and 4, the connecting member 8 includes a stamping block connecting plate 9 disposed on the lens injection upper mold 2, the stamping block connecting plate 9 is connected to the mold closing stamping block 7, and the cross-sectional area of the stamping block connecting plate 9 is larger than that of the mold closing stamping block 7.

In this embodiment, the punch block connecting plate 9 is used to connect and fix the die assembly punch block 7, and the cross-sectional area of the punch block connecting plate 9 is larger than that of the die assembly punch block 7, so as to ensure that the punch block connecting plate 9 does not affect the punching of the die assembly punch block 7.

The lens forming insert piece 3 comprises a lens forming insert plate 10 arranged in the lens injection molding lower die 1, a lens secondary forming cavity 11 is arranged in the lens forming insert plate 10, and the position of the lens secondary forming cavity 11 corresponds to that of the die assembly stamping block 7.

In this embodiment, the lens-forming insert plate 10 is matched with the mold closing punch block 7 to perform injection molding and punching, and the lens secondary forming cavity 11 is used for forming the shape of the required plastic part.

Referring to fig. 1 and 3, the dislocation injection molding part 5 includes an injection molding main board 12 disposed on the lens injection molding upper die 2, an injection molding main hole 13 is disposed in the injection molding main board 12, an injection molding connecting portion 14 is disposed at the bottom of the injection molding main hole 13, and the injection molding connecting portion 14 corresponds to the lens molding insert plate 10.

In this embodiment, during the injection molding process, the molten material is injected from the injection main hole 13 in the injection main plate 12, and then flows into the cavity through the injection connecting portion 14 to perform injection molding.

The injection molding connecting part 14 comprises an injection molding connecting pipe 15 arranged in the lens injection molding upper die 2, the injection molding connecting pipe 15 is communicated with the injection molding main hole 13, and the injection molding connecting pipe 15 and the die assembly stamping block 7 are arranged in a staggered mode.

In this embodiment, the molten material entering the main injection hole 13 is injected into the cavity through the injection connecting pipe 15, the injection connecting pipe 15 and the die closing stamping block 7 are arranged in a staggered manner, and the injection and stamping are not interfered with each other.

The injection molding connecting pipe 15 corresponds to the lens molding insert plate 10, a material conveying channel 16 is arranged in the lens molding insert plate 10, one end of the material conveying channel 16 is connected with the injection molding connecting pipe 15, and the other end of the material conveying channel is connected with the lens secondary molding cavity 11.

In this embodiment, the molten material entering the injection molding connecting pipe 15 is injected into the lens secondary molding cavity 11 through the material conveying passage 16, and the injection molding precision is high.

Referring to fig. 2, the ejection portion 6 includes an ejector fixing plate 17 disposed below the lens injection lower mold 1, a plurality of ejector plates 18 are disposed in the ejector fixing plate 17, and the ejector plates 18 correspond to the lens secondary molding cavity 11.

In this embodiment, the ejector rod fixing plate 17 is used for connecting and fixing the ejector rod plate 18, and after injection molding is completed, the plastic part is ejected through the ejector rod plate 18, so that the operation is simple and convenient.

Referring to fig. 1 and 2, a fixing substrate 19 is disposed at the bottom of the ejector plate 18, and the cross-sectional area of the fixing substrate 19 is larger than that of the ejector fixing plate 17.

In this embodiment, the fixing substrate 19 is used to mount and fix the rod fixing plate 17.

Referring to fig. 2, the fixing substrate 19 is provided with a plurality of anti-deflection irons 20 which are symmetrical along the center line of the fixing substrate 19, and the ejector rod fixing plate 17 is in sliding fit with the anti-deflection irons 20.

In this embodiment, in the moving process of the ejector rod fixing plate 17, the ejector rod fixing plate 17 is limited by sliding fit between the ejector rod fixing plate 17 and the anti-deflection iron 20, so that the ejector rod fixing plate 17 and the ejector rod plate 18 are prevented from being angularly deflected in the moving process, and the ejection accuracy is improved.

The utility model discloses a theory of operation is:

in the injection molding process, the lens injection molding lower die 1 and the lens injection molding upper die 2 are firstly mutually close to ensure that the mold closing stamping block 7 is close to the lens secondary molding cavity 11, and a larger molding space formed between the mold closing stamping block 7 and the lens secondary molding cavity 1 is reserved, at the moment, a molten material is injected from an injection main hole 13 in the injection main board 12, the molten material entering the injection main hole 13 is injected into the cavity through an injection connecting pipe 15, the injection connecting pipe 15 and the mold closing stamping block 7 are arranged in a staggered mode, the injection molding and the stamping are not interfered with each other, the molten material entering the injection connecting pipe 15 is injected into the lens secondary molding cavity 11 through a material conveying passage 16, the injection molding precision is higher,

after the injection molding is finished, the lens injection lower die 1 and the lens injection upper die 2 are further close to each other, secondary punch forming is carried out through the matching between the die assembly punching block 7 and the lens forming insert plate 10, the whole structure distribution is reasonable, the secondary die assembly structure is adopted, the uniformity of a plastic part in the injection molding process is ensured, the precision of the molded plastic part is higher,

after the injection molding is finished, the plastic part is ejected out through the ejector rod plate 18, the operation is simple and convenient,

at ejector pin fixed plate 17 removal in-process, through the sliding fit between ejector pin fixed plate 17 and the anti-biasing iron 20, play limiting displacement to ejector pin fixed plate 17, avoid ejector pin fixed plate 17 and ejector pin board 18 to take place the angular deflection at the removal in-process, improved ejecting accuracy.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein will be apparent to those skilled in the art without departing from the spirit of the invention.

Although terms such as the lens injection lower mold 1, the lens injection upper mold 2, the lens forming insert 3, the overmolding assembly 4, the misalignment injection molding 5, the ejector 6, the mold clamping punch 7, the connecting member 8, the punch connecting plate 9, the lens forming insert plate 10, the lens overmolding cavity 11, the injection main plate 12, the injection main hole 13, the injection connecting portion 14, the injection connecting pipe 15, the material conveying passage 16, the ejector fixing plate 17, the ejector plate 18, the fixing base plate 19, the anti-offset iron 20, etc. are used more frequently herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.

Claims

1. The utility model provides a car headlamp thick wall lens mould secondary die clamping mechanism, moulds plastics including lens lower mould (1) and lens and moulds plastics upper die (2), its characterized in that, lens mould plastics and be equipped with lens shaping insert (3) in lower mould (1), lens mould plastics and be equipped with secondary die clamping forming component (4) in upper die (2), secondary die clamping forming component (4) corresponding with the position of lens shaping insert (3), lens mould plastics and be equipped with dislocation injection molding (5) on upper die (2), dislocation injection molding (5) and secondary die clamping forming component (4) crisscross setting, dislocation injection molding (5) corresponding with the position of lens shaping insert (3), lens mould plastics lower mould (1) below be equipped with ejecting portion (6).

2. The secondary die closing and locking mechanism of the automotive headlamp thick-wall lens die as claimed in claim 1, wherein the secondary die closing and forming assembly (4) comprises a die closing stamping block (7) arranged in the lens injection upper die (2), the die closing stamping block (7) corresponds to the position of the lens forming insert piece (3), a connecting piece (8) is arranged at the top of the die closing stamping block (7), and the connecting piece (8) is connected with the lens injection upper die (2).

3. The secondary die closing and locking mechanism of the automotive headlamp thick-wall lens die is characterized in that the connecting piece (8) comprises a stamping block connecting plate (9) arranged on the upper lens injection die (2), the stamping block connecting plate (9) is connected with the die closing stamping block (7), and the cross section area of the stamping block connecting plate (9) is larger than that of the die closing stamping block (7).

4. The automobile headlamp thick-wall lens mold secondary die closing and locking mechanism according to claim 3, wherein the lens forming insert piece (3) comprises a lens forming insert plate (10) arranged in the lower lens injection molding die (1), a lens secondary forming cavity (11) is arranged in the lens forming insert plate (10), and the position of the lens secondary forming cavity (11) corresponds to that of the die closing and pressing block (7).

5. The double-closing mold locking mechanism of the automotive headlamp thick-wall lens mold according to claim 4, characterized in that the offset injection molding piece (5) comprises an injection main plate (12) arranged on the lens injection upper mold (2), an injection main hole (13) is arranged in the injection main plate (12), an injection connecting part (14) is arranged at the bottom of the injection main hole (13), and the injection connecting part (14) corresponds to the position of the lens forming insert plate (10).

6. The secondary mold closing and locking mechanism of the automotive headlamp thick-wall lens mold as claimed in claim 5, wherein the injection connecting part (14) comprises an injection connecting pipe (15) arranged in the lens injection upper mold (2), the injection connecting pipe (15) is communicated with the injection main hole (13), and the injection connecting pipe (15) and the mold closing punch block (7) are arranged in a staggered mode.

7. The secondary mold closing and locking mechanism for the thick-walled lens mold of the automotive headlamp as claimed in claim 6, wherein the injection connecting pipe (15) corresponds to the position of the lens forming insert plate (10), a material conveying channel (16) is arranged in the lens forming insert plate (10), one end of the material conveying channel (16) is connected with the injection connecting pipe (15), and the other end is connected with the lens secondary forming cavity (11).

8. The secondary mold closing and locking mechanism for the thick-walled lens mold of the automotive headlamp as claimed in claim 7, wherein the ejection part (6) comprises a mandril fixing plate (17) arranged below the lower lens injection mold (1), a plurality of mandril plates (18) are arranged in the mandril fixing plate (17), and the mandril plates (18) correspond to the positions of the lens secondary molding cavity (11).

9. The secondary mold closing and locking mechanism for the thick-walled lens mold of the automotive headlamp as claimed in claim 8, characterized in that a fixed base plate (19) is arranged at the bottom of the ejector rod plate (18), and the cross sectional area of the fixed base plate (19) is larger than that of the ejector rod fixing plate (17).

10. The secondary mold closing and locking mechanism for the thick-walled lens mold of the automotive headlamp as claimed in claim 9, wherein the fixed base plate (19) is provided with a plurality of pieces of anti-deflection iron (20) which are symmetrical along the center line of the fixed base plate (19), and the ejector rod fixing plate (17) is in sliding fit with the pieces of anti-deflection iron (20).