CN214773642U

CN214773642U - Precise injection mold with hot runner cooling function

Info

Publication number: CN214773642U
Application number: CN202120710303.8U
Authority: CN
Inventors: 万寿珍; 陈炳辉
Original assignee: Suzhou Triumph Electrical And Mechanical Components Co ltd
Current assignee: Suzhou Triumph Electrical And Mechanical Components Co ltd
Priority date: 2021-04-08
Filing date: 2021-04-08
Publication date: 2021-11-19
Anticipated expiration: 2031-04-08

Abstract

The utility model discloses a precise injection mold with hot runner cooling function, which comprises a fixed mold and a base plate with one side detachably connected, wherein the bottom end of an upper pressure plate arranged at one side of the fixed mold is fixedly connected with a lower pressure plate, when the melt plastic is injected into the hot splitter plate from the main feeding mouth of the hot runner, the melt plastic directly flows into the cavity of the hot splitter plate and is continuously heated by the heating element, in the molding process of the hot runner mold, the temperature of the plastic melt is accurately controlled in the runner system, the plastic can better flow into each mold cavity in a uniform and consistent state, the result is consistent product quality, product quality is improved, the bottom end of the refrigeration system arranged in the inner cavity of the lower pressing plate is fixedly connected with the refrigeration sheet, the surface of the heat dissipation plate arranged at the top end of the refrigeration sheet is sprayed with heat-conducting silicone grease, the heat dissipation plate can be fully contacted with the heat of the melt plastic, so that the cooling speed of the injection molding of the melt plastic is accelerated.

Description

Precise injection mold with hot runner cooling function

Technical Field

The utility model relates to an injection mold technical field specifically is an accurate injection mold with hot runner cooling function.

Background

The mould is a kind of mould and tool which are used in industrial production to obtain the required products by injection moulding, blow moulding, extrusion, die casting or forging forming, smelting, stamping, etc. in short, the mould is a tool for making the formed articles, the tool is composed of various parts, different moulds are composed of different parts, the hot runner is a heating component system which is used in the injection mould and injects the melted plastic particles into the cavity of the mould, the hot runner mould is a brand-new structure which heats the runner and the runner of the traditional mould or the three-plate mould, and the runner do not need to be taken out in each forming.

However, most of the existing injection molds adopt a conventional cold runner for feeding glue, the runner distance is long, the material utilization rate is low, the product quality is unstable, the molding period is long, the production efficiency is low, and the capacity requirement of a client cannot be met.

The problems described above are addressed. For this reason, a precision injection mold having a hot runner cooling function is proposed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an accurate injection mold with hot runner cooling function, the top board bottom fixedly connected with holding down plate that sets up in one side of fixed mould, insert the ann of base plate in the thick connecting hole that thick spliced pole bottom was seted up, make base plate and holding down plate be connected as an organic wholely, simultaneously with the hot runner block in the board groove of fixed plate, simultaneously with the hot runner block of hot runner upper end in the pipe box, the injection pipe of hot runner and the injection molding hole of one side base plate are connected, subsequently insert the heating member in the spacing mouth of bottom plate, at last cooperate fastener and base plate and the thin connecting hole of fixed plate to fix as an organic whole, when melt plastics pours into the hot runner from the main feed nozzle of hot runner into, melt plastics can directly flow into the cavity of hot runner and be heated by the heating member continuously, pour into to the injection molding hole along the injection pipe, the small hole along the lower pressing plate surface permeates into the fixed mould, cooperate with the hydraulic rod, the movable mould and the mould injection moulding, the hot runner control and maintain the melt plastic to directly reach the die cavity from the injection molding machine main feed nozzle smoothly under the appropriate situation, the scheme of hot runner cold charge replaces the pure cold runner, the weight of the runner is reduced, the glue feeding and cooling time is shortened, and further the forming cycle is shortened, the production efficiency and the material utilization rate are improved, in the hot runner mould forming process, the temperature of the plastic melt is accurately controlled in the runner system, the plastic can better flow into each die cavity in an even and consistent state, the result is consistent in product quality, the quality of the product is improved, and therefore the problem in the background technology is solved.

In order to achieve the above object, the utility model provides a following technical scheme: a precision injection mold with a hot runner cooling function comprises a fixed mold and a base plate with one side detachably connected, wherein a fixed plate arranged at the side end of the base plate is connected with a heat distribution plate in a clamping manner and detachably connected with a bottom plate at the side end, and the fixed mold comprises an upper pressure plate arranged at one side, and the bottom end of the upper pressure plate is fixedly connected with a lower pressure plate;

the base plate comprises a thick connecting column arranged on one side of the base plate and a thin connecting hole formed in the top end of the base plate, and injection molding holes are formed in two sides of the thin connecting hole.

Preferably, the fixing plate comprises a pipe groove formed in the top and a plate groove formed in the bottom in a penetrating manner.

Preferably, the heat spreader plate comprises a hot runner arranged at the top and an injection pipe penetrating through the side end of the heat spreader plate, and the middle end of the heat spreader plate is fixedly connected with a heating element.

Preferably, the bottom plate comprises a limiting opening formed in the middle end and a fastening piece connected with the limiting opening in a meshed mode on two sides.

Preferably, the upper pressure plate comprises a movable die arranged at the side end of a hydraulic rod mounted at the top end, and the bottom end of the movable die is fixedly connected with a die.

Preferably, the holding down plate includes the refrigerating system bottom fixedly connected with refrigeration piece that its inner chamber set up, and the cooling plate surface spraying that the refrigeration piece top set up has heat conduction silicone grease.

Preferably, the hot runner comprises a main feeding nozzle and a transverse pipe which is connected with the bottom end of the main feeding nozzle in a penetrating way, and the middle end of the transverse pipe is connected with a longitudinal pipe in a penetrating way.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model provides a precision injection mold with hot runner cooling function, the top board bottom fixedly connected with holding down plate that sets up in one side of fixed mould, insert the ann of base plate in the thick connecting hole that thick spliced pole bottom was seted up, make base plate and holding down plate be connected as an organic whole, block the hot flow splitter plate in the plate groove of fixed plate simultaneously, block the hot runner block of hot flow splitter plate upper end in the pipe box simultaneously, connect the injection pipe of hot flow splitter plate and the injection molding hole of one side base plate, insert the heating member ann in the spacing mouth of bottom plate immediately, cooperate fastener and base plate and the thin connecting hole of fixed plate to fix as an organic whole finally, when melt plastics pours into the hot flow splitter plate from the main feed nozzle of hot runner, melt plastics can directly flow into the cavity of hot flow splitter plate and be heated by heating member continuously, close to injecting into the injection molding hole along the injection pipe, the small hole along the lower pressing plate surface permeates into the inside of a fixed die, the hydraulic pressure rod is matched, the movable die and the die are used for injection molding, the hot runner controls and maintains the melt plastic to smoothly and directly reach a cavity from a main feeding nozzle of an injection molding machine under a proper condition, a pure cold runner is replaced by a scheme of adding cold materials into the hot runner, the weight of the runner is reduced, the glue feeding and cooling time is shortened, the molding period is further shortened, the production efficiency and the material utilization rate are improved, in the molding process of the hot runner die, the temperature of the plastic melt is accurately controlled in a runner system, the plastic can better flow into each cavity in a uniform state, the result is consistent in product quality, and the quality of the product is improved.

2. The utility model provides a precision injection mold with hot runner cooling function, the refrigerating system bottom fixedly connected with refrigeration piece that sets up at the inner chamber of holding down plate, the cooling plate surface spraying that the refrigeration piece top set up has heat conduction silicone grease, install refrigerating system in the inside cavity bottom of holding down plate, connect refrigeration piece and heating panel at refrigeration system's top, at the same time, heat conduction silicone grease is sprayed on the surface of heating panel, when the inside melt plastics of holding down plate and movable mould and mould injection moulding, carry on the circular telegram to refrigeration system, make refrigeration piece carry out refrigeration work, because refrigeration piece adopts the component that the semiconductor refrigeration piece constitutes, have the fast characteristics of refrigeration time, the circular telegram is not for one minute, the refrigeration piece can reach the maximum temperature difference, cooperate the heating panel and the surface spraying heat conduction silicone grease of side, can make the heating panel fully contact with the heat of melt plastics, thereby accelerating the cooling speed of the injection molding of the melt plastic.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the upper platen of the present invention;

fig. 3 is a schematic view of the internal structure of the lower pressing plate of the present invention;

fig. 4 is the structure diagram of the main feeding nozzle of the present invention.

In the figure: 1. a fixed mold; 11. an upper pressure plate; 111. a hydraulic lever; 112. moving the mold; 113. a mold; 12. a lower pressing plate; 121. a refrigeration system; 122. a refrigeration plate; 123. a heat dissipation plate; 124. heat-conducting silicone grease; 2. a substrate; 21. a connecting column is coarsely connected; 22. a thin connecting hole; 23. injection molding holes; 3. a fixing plate; 31. a pipe groove; 32. a plate groove; 4. a heat spreader plate; 41. a hot runner; 411. a main feed nozzle; 412. a transverse tube; 42. a heating member; 43. an injection pipe; 5. a base plate; 51. a limiting port; 52. a fastener.

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. 1-2, a precision injection mold with a hot runner cooling function comprises a fixed mold 1 and a base plate 2 detachably connected at one side, so that the fixed mold 1 and the base plate 2 can be conveniently disassembled and assembled, a fixed plate 3 arranged at the side end of the base plate 2 is connected with a heat distribution plate 4 in a clamping manner and detachably connected with a bottom plate 5 at the side end, so that each component can be conveniently disassembled and assembled, the fixed mold 1 comprises an upper pressure plate 11 fixedly connected at one side and a lower pressure plate 12 fixedly connected at the bottom end, the base plate 2 comprises a thick connecting column 21 arranged at one side and a thin connecting hole 22 arranged at the top end of the base plate 2, injection holes 23 are arranged at two sides of the thin connecting hole 22, the fixed plate 3 comprises a pipe groove 31 arranged at the top and a plate groove 32 arranged at the bottom end, so that the heat distribution plate 4 can be conveniently limited and fixed in the plate groove 32, the lower pressure plate 12 is fixedly connected at the bottom end of the upper pressure plate 11 arranged at one side of the fixed mold 1, inserting the base plate 2 into the thick connection hole formed at the bottom end of the thick connection column 21, connecting the base plate 2 and the lower press plate 12 into a whole, clamping the heat distribution plate 4 in the plate groove 32 of the fixed plate 3, clamping the hot runner 41 at the upper end of the heat distribution plate 4 in the pipe groove 31, connecting the injection pipe 43 of the heat distribution plate 4 with the injection hole 23 of the base plate 2 at one side, inserting the heating element 42 into the limit opening 51 of the bottom plate 5, and finally fixing the base plate 2 and the thin connection hole 22 of the fixed plate 3 into a whole by matching with the fastening element 52, wherein when the melt plastic is injected into the heat distribution plate 4 from the main feeding nozzle 411 of the hot runner 41, the melt plastic directly flows into the cavity of the heat distribution plate 4 and is continuously heated by the heating element 42, and is injected into the injection hole 23 along the injection pipe 43, and penetrates into the inner part of the fixed mold 1 along the small hole on the surface of the lower press plate 12, and matching with the hydraulic rod 111, The movable mould 112 and the mould 113 are used for injection moulding, the hot runner 41 controls and maintains the melt plastic to smoothly and directly reach the cavity from the main feeding nozzle 411 of the injection moulding machine under a proper condition, the scheme of adding cold materials to the hot runner 41 replaces a pure cold runner, the weight of the runner is reduced, the time for feeding glue and cooling is shortened, the moulding period is further shortened, the production efficiency and the material utilization rate are improved, in the moulding process of the mould 113 of the hot runner 41, the temperature of the plastic melt is accurately controlled in the runner system, the plastic can better flow into each mould cavity in a uniform state, the product quality is consistent as a result, and the product quality is improved.

Referring to fig. 3-4, a precision injection mold with hot runner cooling function, a hot splitter plate 4 includes a hot runner 41 disposed at the top and an injection pipe 43 penetrating connection at the side end, a heating element 42 fixedly connected to the middle end of the hot splitter plate 4 facilitates injection of molten plastic and continuous heating of the molten plastic, a bottom plate 5 includes a limiting port 51 disposed at the middle end and a fastening element 52 engaged with both sides of the limiting port 51, a middle substrate 2 and a fixing plate 3 are fixed to a fixed mold 1, an upper plate 11 includes a hydraulic rod 111 mounted at the top end and a movable mold 112 disposed at the side end, a mold 113 is fixedly connected to the bottom end of the movable mold 112, a lower plate 12 includes a refrigeration system 121 disposed in an inner cavity thereof and a refrigeration sheet 122 fixedly connected to the bottom end of the refrigeration sheet 122, a heat-conducting silicone grease 124 is sprayed on the surface of a heat-dissipating plate 123 disposed at the top end of the refrigeration sheet 122, and an efficiency 41 of the refrigeration sheet 122 for cooling the hot runner by injection molding plastic includes a main feed nozzle 411 and a main feed nozzle 411 disposed at the bottom end penetrating connection The middle end of the transverse pipe 412 is connected with a longitudinal pipe in a penetrating way.

The working principle is as follows: inserting the base plate 2 into the thick connection hole formed at the bottom end of the thick connection column 21, connecting the base plate 2 and the lower press plate 12 into a whole, clamping the heat distribution plate 4 in the plate groove 32 of the fixed plate 3, clamping the hot runner 41 at the upper end of the heat distribution plate 4 in the pipe groove 31, connecting the injection pipe 43 of the heat distribution plate 4 with the injection hole 23 of the base plate 2 at one side, inserting the heating element 42 into the limit opening 51 of the bottom plate 5, and finally fixing the base plate 2 and the thin connection hole 22 of the fixed plate 3 into a whole by matching with the fastening element 52, wherein when the melt plastic is injected into the heat distribution plate 4 from the main feeding nozzle 411 of the hot runner 41, the melt plastic directly flows into the cavity of the heat distribution plate 4 and is continuously heated by the heating element 42, and is injected into the injection hole 23 along the injection pipe 43, and penetrates into the inner part of the fixed mold 1 along the small hole on the surface of the lower press plate 12, and matching with the hydraulic rod 111, Injection moulding of movable mould 112 and mould 113, refrigerating system 121 is installed to the inside cavity bottom at holding down plate 12, connect refrigeration piece 122 and heating panel 123 at refrigerating system 121's top, simultaneously at the surface spraying heat conduction silicone grease 124 of heating panel 123, when inside fuse-element plastics of holding down plate 12 and movable mould 112 and mould 113 injection moulding, energize refrigerating system 121, make refrigeration piece 122 carry out refrigeration work, because of refrigeration piece 122 adopts the component that semiconductor refrigeration piece 122 constitutes, have the fast characteristics of refrigeration time, the circular telegram is not for one minute, refrigeration piece 122 can reach the maximum temperature difference, cooperate the heating panel 123 and the surface spraying heat conduction silicone grease 124 of side, can make heating panel 123 fully contact with the heat of fuse-element plastics.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 precision injection mold with hot runner cooling function, includes fixed mould (1) and one side dismantles base plate (2) of connecting, and fixed plate (3) and heat spreader plate (4) block that base plate (2) side set up are connected and are dismantled with bottom plate (5) of side and be connected its characterized in that: the fixed die (1) comprises an upper pressing plate (11) arranged on one side, and a lower pressing plate (12) is fixedly connected to the bottom end of the upper pressing plate;

the base plate (2) comprises a thick connecting column (21) arranged on one side of the base plate and a thin connecting hole (22) formed in the top end of the base plate (2), and injection molding holes (23) are formed in two sides of the thin connecting hole (22).

2. A precision injection mold with hot runner cooling as claimed in claim 1, wherein: the fixing plate (3) comprises a pipe groove (31) formed in the top and a plate groove (32) formed in the bottom in a penetrating mode.

3. A precision injection mold with hot runner cooling as claimed in claim 1, wherein: the hot runner (41) that hot flow distribution plate (4) set up including the top and injection pipe (43) through connection of side, hot flow distribution plate (4) middle-end fixedly connected with heating member (42).

4. A precision injection mold with hot runner cooling as claimed in claim 1, wherein: the bottom plate (5) comprises a limiting opening (51) formed in the middle end and a fastening piece (52) connected with the limiting opening (51) in a meshed mode on two sides.

5. A precision injection mold with hot runner cooling as claimed in claim 1, wherein: the upper pressure plate (11) comprises a hydraulic rod (111) installed at the top end, a movable die (112) is arranged at the side end of the hydraulic rod, and a die (113) is fixedly connected to the bottom end of the movable die (112).

6. A precision injection mold with hot runner cooling as claimed in claim 1, wherein: the lower pressing plate (12) comprises a refrigerating system (121) and a refrigerating sheet (122) which are fixedly connected to the bottom end of the inner cavity of the lower pressing plate, and heat-conducting silicone grease (124) is sprayed on the surface of a heat dissipation plate (123) which is arranged on the top end of the refrigerating sheet (122).

7. A precision injection mold with hot runner cooling as claimed in claim 3, wherein: the hot runner (41) comprises a main feeding nozzle (411) and a transverse pipe (412) which is connected with the bottom end of the main feeding nozzle (411) in a penetrating way, and the middle end of the transverse pipe (412) is connected with a longitudinal pipe in a penetrating way.