CN214354001U

CN214354001U - Silicon rubber protective sleeve forming die

Info

Publication number: CN214354001U
Application number: CN202023218652.2U
Authority: CN
Inventors: 朱敏
Original assignee: Nanjing Strong Cloud Composite Material Molding Art Co ltd
Current assignee: Nanjing Strong Cloud Composite Material Molding Art Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-10-08
Anticipated expiration: 2030-12-28

Abstract

The utility model discloses a silicon rubber protective sheath forming die relates to silicon rubber production facility technical field, including lower mould fixed plate and upper fixing plate, the lower mould fixed plate is connected with the lower module that carries out reciprocating displacement in vertical direction through spacing subassembly, the shaping chamber has been seted up to the lower module inboard, the jet orifice has been seted up in the lower module, the sliding connection of jet orifice has T shape ejector pin, compression spring has been cup jointed in the activity of the T shape ejector pin outside, the injection hole has been seted up in the lower module, the one end intercommunication of injection hole the jet orifice, upper fixing plate's inboard fixed mounting has last module, the beneficial effects of the utility model are that: the high temperature at the mold core can be quickly taken away, the temperature of the product is quickly reduced to the temperature suitable for mold opening, the cooling time of the mold is shortened, and the processing efficiency is favorably improved; the ejector pin carries out the shutoff to the efflux hole, and the ejector pin upper end flushes with the shaping chamber, reduces the burr of kneck, makes things convenient for the repairment work in later stage.

Description

Silicon rubber protective sleeve forming die

Technical Field

The utility model relates to a silicon rubber production facility technical field specifically is a silicon rubber protective sheath forming die.

Background

The silicone rubber protective sleeve is produced by injecting a rubber injection machine into a mold, and the molding is carried out on the protective sleeve through a molding mold.

When the existing silicon rubber protective sleeve forming mold is used, after injection is completed in a high-temperature environment, the mold can be opened after the temperature is reduced and the product is solidified, and the existing mold core is positioned in the middle of the mold, and the injection material completely surrounds the mold core, so that the heat dissipation capacity of the mold core is poor, and the mold opening waiting time of the mold is integrally prolonged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a silicon rubber protective sheath forming die, the mold core can cool off fast to the temperature of quick reduction product to the required suitable temperature of die sinking, the cooling time of reduction mould helps promoting machining efficiency.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a silicon rubber protective sheath forming die, includes lower mould fixed plate and an upper fixed plate, the lower mould fixed plate is connected with the lower module that carries out reciprocating displacement in vertical direction through spacing subassembly, the shaping chamber has been seted up to the lower module inboard, the jet hole has been seted up in the lower module, the sliding connection of jet hole has T shape ejector pin, compression spring has been cup jointed in the activity of T shape ejector pin outside, the injection hole has been seted up in the lower module, the one end intercommunication of injection hole the jet hole, upper fixed plate's inboard fixed mounting has last module, upward be provided with the mold core in the module, the mold core with the inside of going up the module is provided with and link up the two water conservancy diversion hole.

Preferably, the limiting assembly comprises a groove formed in the bottom of the lower module, a nitrogen spring is arranged in the groove, and one end of the nitrogen spring is fixedly mounted on the lower die fixing plate.

Preferably, a positioning column is arranged on the lower die fixing plate, a sliding hole is formed in the lower die block, and one end of the positioning column is movably inserted into the sliding hole.

Preferably, both ends of the flow guide hole are in threaded connection with connectors, and a position avoiding hole is formed in the upper die fixing plate corresponding to the position of the flow guide hole.

Preferably, the joint is communicated with a cooling water source through a conduit, and the conduit penetrates through the avoiding hole and then extends to the outside.

Preferably, one end of the jet hole is communicated with the forming cavity, and the lower end of the T-shaped ejector rod is abutted to the upper surface of the lower die fixing plate

Preferably, the lower module is provided with a yielding groove corresponding to the T-shaped ejector rod, one end of the compression spring is abutted to the yielding groove, and the other end of the compression spring is abutted to the horizontal end of the T-shaped ejector rod.

Compared with the prior art, the beneficial effects of the utility model are that: this silicon rubber protective sheath forming die: the flow of water flow is carried out through the flow guide holes arranged in the mold core, so that the high temperature at the mold core can be taken away quickly, the temperature of a product can be reduced to a temperature suitable for mold opening quickly, the cooling time of the mold is shortened, and the processing efficiency is improved; the ejector rod arranged at the bottom can be used for plugging the jet hole after injection, the upper end of the ejector rod is flush with the forming cavity, burrs at the interface are reduced, and the later-stage finishing work is facilitated.

Drawings

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

FIG. 2 is an enlarged view of the point A of the present invention;

FIG. 3 is a schematic view of the structure of the upper module and the mold core of the present invention;

fig. 4 is a schematic view of the joint structure of the present invention.

In the figure: 10. a lower module; 11. a molding cavity; 12. an upper die fixing plate; 13. an upper module; 14. a flow guide hole; 15. a joint; 16. avoiding holes; 17. a conduit; 18. a mold core; 19. a jet hole; 20. an injection hole; 21. a T-shaped ejector rod; 22. a compression spring; 23. a yielding groove; 24. a positioning column; 25. a slide hole; 26. a groove; 27. a nitrogen spring; 28. and a lower die fixing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the injection molding device comprises a lower die fixing plate 28 and an upper die fixing plate 12, wherein the lower die fixing plate 28 is connected with a lower die block 10 which performs reciprocating displacement in the vertical direction through a limiting assembly, the height of the lower die block 10 can be changed, a molding cavity 11 is formed in the inner side of the lower die block 10, a jet hole 19 is formed in the lower die block 10 and used for inflow of injection materials, a T-shaped ejector rod 21 is connected to the jet hole 19 in a sliding mode, a compression spring 22 is movably sleeved on the outer side of the T-shaped ejector rod 21, the compression spring 22 always applies downward thrust to the T-shaped ejector rod 21, an injection hole 20 is formed in the lower die block 10, one end of the injection hole 20 is communicated with the jet hole 19, the injection hole 20 is used for being connected with an injection machine, an upper die block 13 is fixedly installed on the inner side of the upper die fixing plate 12, a die core 18 is arranged on the upper die block 13, flow guide holes 14 which run through the die core 18 and the upper die block 13 are arranged inside, and the die core 18 is abutted to the bottom of the molding cavity 11, after the material pours into, can be moulding through the cooperation of mold core 18 and shaping chamber 11, water conservancy diversion hole 14 is seted up along mold core 18, in external water source can flow into water conservancy diversion hole 14, the heat of mold core 18 can be absorbed continually through the flow of water source for mold core 18 rapid cooling can take away the high temperature of mold core 18 department fast, the temperature that helps the product drops to suitable die sinking temperature fast, the cooling time of reduction mould helps promoting machining efficiency.

Referring to fig. 1, the limiting assembly includes a groove 26 formed at the bottom of the lower module 10, a nitrogen spring 27 is disposed inside the groove 26, one end of the nitrogen spring 27 is fixedly mounted on the lower mold fixing plate 28, the nitrogen spring 27 can apply upward thrust to the lower module 10, so that the lower module 10 can be away from the lower mold fixing plate 28 without external force, a positioning pillar 24 is disposed on the lower mold fixing plate 28, a sliding hole 25 is formed in the lower module 10, one end of the positioning pillar 24 is movably inserted into the sliding hole 25, and the positioning pillar 24 can ensure stability of the lower module 10 during displacement.

Referring to fig. 1, two ends of each of the diversion holes 14 are connected with a connector 15 through threads, a position avoiding hole 16 is formed in the upper mold fixing plate 12 corresponding to the diversion hole 14, the connectors 15 are communicated with a cooling water source through a conduit 17, the conduit 17 extends to the outside after penetrating through the position avoiding holes 16, the connectors 15 are respectively connected with the two ends of the diversion hole 14 through two groups of connectors 15, and are connected with an external water pump through the conduit 17, so that the water source can be input from one end of the diversion hole 14, and the other end of the water source can be output, and circulation of water flow is formed.

Referring to fig. 1, one end of the jet hole 19 is communicated with the molding cavity 11, the lower end of the T-shaped ejector rod 21 abuts against the upper surface of the lower mold fixing plate 28, a relief groove 23 is formed in the lower mold block 10 corresponding to the T-shaped ejector rod 21, one end of the compression spring 22 abuts against the relief groove 23, the other end of the compression spring 22 abuts against the horizontal end of the T-shaped ejector rod 21, and pressure is applied to the T-shaped ejector rod 21 through the compression spring 22, so that the T-shaped ejector rod 21 is located below in the mold opening state, the T-shaped ejector rod 21 is prevented from influencing feeding of the jet hole 19, and when mold closing is performed, the lower mold block 10 is pressed down, so that the T-shaped ejector rod 21 moves up, the jet hole 19 can be blocked through the T-shaped ejector rod 21 when injection is completed, the upper end of the T-shaped ejector rod 21 is flush with the molding cavity 11, burrs at the interface are reduced, and the later-stage finishing work is facilitated.

The utility model discloses when concrete implementation: when the injection molding device is used, injection materials enter the molding cavity 11 through the jet hole 19, the mold core 18 abuts against the bottom of the molding cavity 11, after the materials are injected, the materials can be molded through the matching of the mold core 18 and the molding cavity 11, after the injection is finished, the mold integrally moves downwards, the lower module 10 moves downwards, the T-shaped ejector rod 21 moves upwards, the jet hole 19 can be plugged through the T-shaped ejector rod 21 when the injection is finished, the upper end of the T-shaped ejector rod 21 is flush with the molding cavity 11, burrs at an interface are reduced, when the injection molding device is cooled, the two groups of connectors 15 are respectively connected with the two ends of the flow guide hole 14, the water source is connected with an external water pump through the guide pipe 17, the water source can be input from one end of the flow guide hole 14, the other end of the water source is output, water flow circulation is formed, the heat of the mold core 18 can be continuously absorbed through the flow of the water source, the mold core 18 is rapidly cooled, and the high temperature at the mold core 18 can be rapidly taken away, the temperature of the product is favorably and quickly reduced to the temperature suitable for opening the mold, and the cooling time of the mold is shortened.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a silicon rubber protective sheath forming die, includes lower mould fixed plate (28) and last fixed plate (12), its characterized in that: lower mould fixed plate (28) are connected with lower module (10) that carries out reciprocating displacement in vertical direction through spacing subassembly, become die cavity (11) have been seted up to lower module (10) inboard, jet hole (19) have been seted up in lower module (10), the sliding connection of jet hole (19) has T shape ejector pin (21), compression spring (22) have been cup jointed in the activity of T shape ejector pin (21) outside, injection hole (20) have been seted up in lower module (10), the one end intercommunication of injection hole (20) jet hole (19), the inboard fixed mounting of last fixed plate (12) has last module (13), upward be provided with mold core (18) on module (13), mold core (18) with the inside of going up module (13) is provided with and link up the two water conservancy diversion hole (14).

2. A silicone rubber protective sheath forming die according to claim 1, characterized in that: the limiting assembly comprises a groove (26) formed in the bottom of the lower module (10), a nitrogen spring (27) is arranged inside the groove (26), and one end of the nitrogen spring (27) is fixedly mounted on the lower die fixing plate (28).

3. A silicone rubber protective sheath forming die according to claim 1, characterized in that: a positioning column (24) is arranged on the lower die fixing plate (28), a sliding hole (25) is formed in the lower die block (10), and one end of the positioning column (24) is movably inserted into the sliding hole (25).

4. A silicone rubber protective sheath forming die according to claim 1, characterized in that: both ends of the diversion hole (14) are in threaded connection with connectors (15), and a position avoiding hole (16) is formed in the position, corresponding to the diversion hole (14), on the upper die fixing plate (12).

5. A silicone rubber protective sheath forming die according to claim 4, characterized in that: the joint (15) is communicated with a cooling water source through a guide pipe (17), and the guide pipe (17) penetrates through the avoiding hole (16) and then extends to the outside.

6. A silicone rubber protective sheath forming die according to claim 1, characterized in that: one end of the jet hole (19) is communicated with the forming cavity (11), and the lower end of the T-shaped ejector rod (21) is abutted to the upper surface of the lower die fixing plate (28).

7. A silicone rubber protective sheath forming die according to claim 1, characterized in that: the lower module (10) is provided with a yielding groove (23) corresponding to the position of the T-shaped ejector rod (21), one end of the compression spring (22) is abutted in the yielding groove (23), and the other end of the compression spring (22) is abutted at the horizontal end of the T-shaped ejector rod (21).