CN217862545U

CN217862545U - Secondary forming die for lens protective cover of electronic observation mirror

Info

Publication number: CN217862545U
Application number: CN202221443463.1U
Authority: CN
Inventors: 赵金; 童泽通; 夏敏辉; 张旭
Original assignee: Ningbo Lichi Plastic Technology Co ltd
Current assignee: Ningbo Lichi Plastic Technology Co ltd
Priority date: 2022-06-09
Filing date: 2022-06-09
Publication date: 2022-11-22
Anticipated expiration: 2032-06-09

Abstract

The utility model relates to the technical field of dies, in particular to a secondary forming die of an electronic observation mirror lens protective cover, which comprises an upper die, a lower die, a pouring mechanism, a guide mechanism, a cooling mechanism and an ejection mechanism, wherein the pouring mechanism, the guide mechanism, the cooling mechanism and the ejection mechanism are arranged in sequence; the upper die and the lower die are integrated dies, an upper die cavity and a lower die cavity are respectively arranged in the upper die and the lower die, a lower die insert core is arranged in the lower die, the forming end heads of the lower die insert core are embedded in the lower die cavity and are matched with each other, and the bottom of the lower die insert core penetrates through the lower die and extends downwards to be fixedly connected with the ejection mechanism; and a positioning assembly is arranged in the lower die insert core, and a PA66 component of a pre-placing component is placed at the top of the positioning assembly.

Description

Secondary forming die for lens protective cover of electronic observation mirror

Technical Field

The utility model relates to a technical field of mould specifically is secondary forming mould of electron sight glass camera lens visor.

Background

The mould is an important ring for industrial manufacture, and a plurality of precision products can not be manufactured without the mould; for example, the lens protection cover of the electronic observation mirror is manufactured by molding. However, the lens protection cover of the electronic observation mirror is shown in fig. 1 and is composed of two pieces; however, the product is mainly used in outdoor scenes, and the factors of ultraviolet resistance, water resistance, aging resistance, deformation resistance and the like of the materials are considered, so that the two parts are molded by adopting two materials; the main body part is made of TPU material, and the protective cover is made of PA66, so that the parts made of two different materials are uniformly molded and glued, and the problem of adhesion exists.

In the prior art, two formed pieces of the secondary forming die are different in material, so that the problem of separation easily occurs due to poor adhesion degree; therefore, a secondary forming mold for the lens protection cover of the electronic observation mirror is urgently needed.

Disclosure of Invention

The utility model aims at providing a make up into a product shaping in order to solve current two kinds of different materials, wherein the technical problem that the insecure branch that produces easily takes off of bonding and provide the secondary forming mould of the strong electron sight glass camera lens visor of product adhesion nature behind the shaping.

The utility model realizes the purpose through the following technical proposal that the secondary forming die of the lens protective cover of the electronic observation mirror comprises an upper die, a lower die, a pouring mechanism, a guide mechanism, a cooling mechanism and an ejection mechanism which are arranged in sequence; the upper die and the lower die are integrated dies, an upper die cavity and a lower die cavity are respectively arranged in the upper die and the lower die, a lower die insert core is arranged in the lower die, the forming end heads of the lower die insert core are embedded in the lower die cavity and are matched with each other, and the bottom of the lower die insert core penetrates through the lower die and extends downwards to be fixedly connected with the ejection mechanism; a positioning assembly is arranged in the lower die insert core, and a PA66 component of a pre-placing part is placed at the top of the positioning assembly; the lower die insert core is arranged in the lower die, and the positioning assembly is arranged in the lower die insert core to place the PA66 part at the top of the lower die insert core, so that the condition that the PA66 part is not deviated during injection molding glue feeding to cause different adhesion after two pieces are molded can be avoided; simultaneously, the bottom of the lower die insert core is connected with the ejection mechanism, the ejection of the die after molding is convenient, and the phenomenon of integral die sticking is avoided.

Preferably, the positioning assembly comprises a positioning pin and a stud, the positioning pin is embedded in the lower die insert core, and is fixedly connected with the forming end head through the stud and propped against the bottom end of the positioning pin to lock the positioning pin.

Preferably, a PA66 component is placed at the top of the positioning pin, the positioning pin penetrates through the PA66 component to form limiting, and the PA66 component is prevented from being deflected by impact force of glue injection during glue injection molding.

Preferably, the number of the positioning assemblies is 4, and the positioning assemblies are uniformly arranged.

Preferably, the lower die insert is arranged at the bottom of the lower die insert core and is disc-shaped, and the lower die insert is fixedly connected with the lower die insert core through screws.

Preferably, the lower die insert core is also internally provided with an insert core cooling mechanism, and the insert core cooling mechanism comprises a water inlet channel arranged in the ejection mechanism and a cooling water channel arranged in the lower die insert core; and a waterproof ring is arranged between the water inlet channel and the cooling water channel, so that water in the water channel is prevented from flowing outwards.

Preferably, the ejection mechanism comprises an ejector pin panel and an ejector pin bottom plate; the water inlet channel is arranged in the thimble base plate, the bottom end of the lower die insert core penetrates through the thimble panel and is abutted to the top surface of the thimble base plate, the cooling water channel is communicated with the water inlet channel, and the waterproof ring is arranged at the periphery of the water inlet of the cooling water channel at the bottom of the lower die insert core, so that the cooling water can be prevented from overflowing.

Preferably, the ejector pin panel is internally provided with a core insert limiting hole, the bottom of the lower die core insert is embedded in the limiting hole, and the limiting hole is internally provided with limiting parts at the left side and the right side of the bottom end of the lower die core insert.

Preferably, the pouring mechanism comprises a sprue bush, a main runner and a submarine gate, and a sub-runner is arranged on the outer ring wall of the lower die insert core and communicated with the submarine gate.

Preferably, the tail end of the branch runner is further provided with a branch sprue for glue injection molding.

The beneficial effects of the utility model are that: the lower die insert core is arranged in the lower die, the positioning component is arranged in the lower die insert core, and the PA66 part is fixedly placed at the top of the lower die insert core by the positioning pin, so that the condition that the PA66 part is not deflected during the glue injection molding process to cause different adhesion after two pieces of molding can be avoided; meanwhile, the pouring mechanism is provided with a runner and a branch sprue on the outer circular wall of the upper die insert core respectively for molding and injecting glue, so that the impact force of a pin is greatly reduced, and the impact is not directly formed on a PA66 component; in addition, the bottom of the lower die insert core is connected with the ejection mechanism, and the die is ejected out conveniently after molding, so that the phenomenon of integral die sticking is avoided.

Drawings

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

fig. 2 is a top view of the present invention;

FIG. 3 isbase:Sub>A cross-sectional view A-A of FIG. 2;

FIG. 4 is an enlarged view of the line A of FIG. 3;

FIG. 5 is a schematic view of a multi-angle perspective structure of the lower mold insert of the present invention;

fig. 6 is a schematic perspective view of the lower mold of the present invention;

fig. 7 is a schematic perspective view of an upper mold of the present invention;

fig. 8 is a schematic structural view of the lower mold cavity of the present invention;

FIG. 9 is an enlarged view of the direction A of FIG. 8;

FIG. 10 is a schematic perspective view of a lens protection cover;

in the figure: 1. the mold comprises an upper mold, 11 parts of an upper mold cavity, 2 parts of a lower mold, 21 parts of a lower mold cavity, 20 parts of a lower mold insert, 20a parts of a molding end, 22 parts of an insert cooling mechanism, 22a parts of a water inlet channel, 22b parts of a cooling water channel, 22c parts of a waterproof ring, 8 parts of a positioning component, 8a parts of a positioning pin, 8b parts of a stud bolt, 3 parts of a pouring mechanism, 31 parts of a sprue bush, 32 parts of a main channel, 33 parts of a submarine sprue, 34 parts of a runner, 35 parts of a branch sprue, 4 parts of a guiding mechanism, 5 parts of a cooling mechanism, 6 parts of an ejection mechanism, 61 parts of an ejector pin panel, 62 parts of an ejector pin bottom plate, 7 parts of a lens protective cover, 71 parts of PA66 and 72 parts of a TPU.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

The embodiment is as follows: referring to fig. 1 to 10, the secondary forming mold of the lens protection cover (7) of the electronic observation mirror comprises an upper mold (1), a lower mold (2), and a pouring mechanism (3), a guide mechanism (4), a cooling mechanism (5) and an ejection mechanism (6) which are arranged in sequence; the upper die (1) and the lower die (2) are integrated dies, an upper die cavity (11) and a lower die cavity (21) are respectively arranged in the upper die (1) and the lower die (2), a lower die insert core (20) is arranged in the lower die (2), a forming end (20 a) of the lower die insert core (20) is embedded in the lower die cavity (21) and is matched with each other, and the bottom of the lower die insert core (20) penetrates through the lower die (2) and extends downwards to be fixedly connected with the ejection mechanism (6); a positioning assembly (8) is installed in the lower die insert core (20), and a PA66 component (71) of a pre-placing part is placed at the top of the positioning assembly (8); the lower die insert core (20) is arranged in the lower die (2), the positioning assembly (8) is arranged in the lower die insert core (20) to place the PA66 component (71) on the top of the lower die insert core, so that the condition that the PA66 component (71) is not deflected during injection molding glue feeding to cause different adhesion of two molded parts can be avoided; meanwhile, the bottom of the lower die insert core (20) is connected with the ejection mechanism (6), and the die is ejected out conveniently after molding, so that the phenomenon of integral die sticking is avoided; more specifically, the positioning assembly (8) comprises a positioning pin (8 a) and a stud (8 b), the positioning pin (8 a) is embedded in the lower die insert core (20), and is fixedly connected with the forming end head (20 a) through the stud (8 b) and propped against the bottom end of the positioning pin (8 a) to lock the lower die insert core; the PA66 component (71) is placed at the top of the positioning pin (8 a), the positioning pin (8 a) penetrates through the PA66 component (71) to form limiting, and the PA66 component (71) is prevented from being deflected by impact force of glue injection during glue injection molding; the number of the positioning assemblies (8) is 4, and the positioning assemblies are uniformly arranged, so that the PA66 component (71) can be better limited and fixed; the bottom of the lower die insert core (20) is provided with a lower die insert which is disc-shaped and is fixedly connected with the lower die insert core (20) through screws.

In a further technical optimization scheme, as shown in fig. 1 to 10, a lower die insert core (20) is further provided with an insert core cooling mechanism (22), and the insert core cooling mechanism (22) comprises a water inlet channel (22 a) arranged in the ejection mechanism (6) and a cooling water channel (22 b) arranged in the lower die insert core (20); a waterproof ring (22 c) is arranged between the water inlet channel (22 a) and the cooling water channel (22 b) to prevent water in the water channel from flowing outwards; the ejection mechanism (6) comprises an ejector pin panel (61) and an ejector pin bottom plate (62); the water inlet channel (22 a) is arranged in the thimble base plate (62), the bottom end of the lower die insert (20) penetrates through the thimble panel (61) and is abutted against the top surface of the thimble base plate (62), the cooling water channel (22 b) is communicated with the water inlet channel (22 a), and the waterproof ring (22 c) is arranged at the periphery of the water inlet of the cooling water channel (22 b) at the bottom of the lower die insert (20), so that cooling water can be prevented from overflowing; an insert core limiting hole is formed in the ejector pin panel (61), the bottom of the lower die insert core (20) is embedded in the limiting hole, and limiting pieces are further arranged in the limiting hole and are arranged on the left side and the right side of the bottom end of the lower die insert core (20); the pouring mechanism (3) comprises a pouring gate sleeve (31), a main runner (32) and a submarine gate (33), a sub-runner (34) is arranged on the outer ring wall of the lower die insert core (20), and the sub-runner (34) is communicated with the submarine gate (33); the tail end of the sub-runner (34) is also provided with a sub-submarine gate (35) for injecting glue for molding.

The utility model discloses a theory of operation lies in: the lower die insert core (20) is arranged in the lower die (2), 4 groups of uniformly arranged positioning assemblies (8) are arranged in the lower die insert core (20), and the PA66 component (71) is fixedly placed at the top of the lower die insert core for limiting by 4 positioning pins (8 a); in addition, a shunt passage (34) and a branch submarine gate (35) are respectively arranged on the outer circular wall of the insert core of the upper die (1); during injection molding, a PA66 component (71) is pre-placed on a positioning assembly (8) for limiting, when an upper die (1) and a lower die (2) are assembled, glue injection enters a main runner (32) from a sprue bush (31) through a set pouring mechanism (3), and then enters a runner manifold (34) and a branch sprue from a submarine sprue (33) in sequence, so that the glue injection enters cavities of the upper die (1) and the lower die (2); pouring from the side of the submarine gate (33) to the runner (34) and from the branch gate to the cavity reduces the impact force of glue injection, and meanwhile, the PA66 component (71) is positioned by 4 groups of positioning assemblies (8), so that the PA66 component (71) can be prevented from being deflected by glue injection in injection molding; therefore, the pouring mechanism (3) is respectively provided with the sub-runner (34) and the sub-submarine gate (35) on the outer circular wall of the insert core of the upper die (1) for molding and glue injection, so that the impact force of a sprue is greatly reduced, and the PA66 component (71) is not directly impacted; molding and integrating the PA66 component (71) and the TPU component (72) to form a seamless butt joint precisely; in addition, an insert cooling mechanism (22) is arranged in the lower die insert (20), the bottom of the lower die insert is connected with the ejection mechanism (6), the die is ejected out conveniently after molding, and the phenomenon of die sticking of the whole die is avoided.

Referring to fig. 1 to 10: the working principle of the utility model lies in that the positioning component is arranged in the lower die insert core, and the positioning pin of the positioning component is utilized to position the PA66 component; meanwhile, a submarine gate and a runner are arranged between the lower mold cavity and the lower mold insert core, and the runner and a branch gate communicated with the submarine gate are arranged on the lower mold insert core, so that impact on the mold cavity and a PA66 component can be reduced during main rubber molding, the PA66 component and a TPU component are bonded together better, and molding separation is avoided.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The secondary forming die of the lens protective cover of the electronic observation mirror comprises an upper die (1), a lower die (2), and a pouring mechanism (3), a guide mechanism (4), a cooling mechanism (5) and an ejection mechanism (6) which are arranged in sequence; the method is characterized in that: the upper die (1) and the lower die (2) are integrated dies, an upper die cavity (11) and a lower die cavity (21) are respectively arranged in the upper die (1) and the lower die (2), a lower die insert core (20) is arranged in the lower die (2), a forming end (20 a) of the lower die insert core (20) is embedded in the lower die cavity (21) and is matched with each other, and the bottom of the lower die insert core (20) penetrates through the lower die (2) and extends downwards to be fixedly connected with the ejection mechanism (6); a positioning assembly (8) is installed in the lower die insert core (20), and a PA66 component (71) of a pre-placing component is placed at the top of the positioning assembly (8).

2. The secondary molding die for the lens protection cover of the electronic observation mirror according to claim 1, characterized in that: locating component (8) include locating pin (8 a) and stud (8 b), locating pin (8 a) inlay and establish in lower mould inlay core (20), through stud (8 b) and shaping end (20 a) fixed connection, offset its locking with the bottom of locating pin (8 a).

3. The secondary molding die for the lens protection cover of the electronic observation mirror according to claim 2, characterized in that: PA66 parts (71) are placed on the tops of the positioning pins (8 a), and the positioning pins (8 a) penetrate through the PA66 parts (71).

4. The secondary molding die for the lens protection cover of an electronic observation mirror according to claim 1, 2 or 3, wherein: the number of the positioning assemblies (8) is 4 groups, and the positioning assemblies are uniformly arranged.

5. The secondary molding die for the lens protection cover of the electronic observation mirror according to claim 1, characterized in that: the bottom of the lower die insert core (20) is provided with a lower die insert which is disc-shaped, and the lower die insert is fixedly connected with the lower die insert core (20) through a screw.

6. The secondary molding die for the lens protection cover of the electronic observation mirror according to claim 1, characterized in that: the lower die insert core (20) is also internally provided with an insert core cooling mechanism (22), and the insert core cooling mechanism (22) comprises a water inlet channel (22 a) arranged in the ejection mechanism (6) and a cooling water channel (22 b) arranged in the lower die insert core (20); and a waterproof ring (22 c) is arranged between the water inlet channel (22 a) and the cooling water channel (22 b).

7. The secondary molding mold for a lens protection cover of an electronic observation mirror according to claim 6, wherein: the ejection mechanism (6) comprises an ejector pin panel (61) and an ejector pin bottom plate (62); the water inlet channel (22 a) is arranged in the ejector pin base plate (62), the bottom end of the lower die insert core (20) penetrates through the ejector pin panel (61) and abuts against the top surface of the ejector pin base plate (62), the cooling water channel (22 b) is communicated with the water inlet channel (22 a), and the bottom of the lower die insert core (20) is provided with a waterproof ring (22 c) around the water inlet of the cooling water channel (22 b), so that cooling water can be prevented from overflowing.

8. The secondary molding die for the lens protection cover of the electronic observation mirror according to claim 7, wherein: be equipped with the spacing hole of insert core in thimble panel (61), the bottom of lower mould insert core (20) inlays and is adorned spacing downthehole, the left and right sides of locating part in the bottom of lower mould insert core (20) is still installed to spacing downthehole.

9. The secondary molding die for the lens protection cover of the electronic observation mirror according to claim 1, wherein: the pouring mechanism (3) comprises a pouring gate sleeve (31), a main runner (32) and a submarine pouring gate (33), a sub-runner (34) is arranged on the outer ring wall of the lower die insert core (20), and the sub-runner (34) is communicated with the submarine pouring gate (33).

10. The secondary molding die for the lens protection cover of the electronic observation mirror according to claim 9, wherein: the tail end of the branch runner (34) is also provided with a branch submarine gate (35).