CN116901385B - Water meter housing injection molding die - Google Patents

Water meter housing injection molding die Download PDF

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Publication number
CN116901385B
CN116901385B CN202311166815.2A CN202311166815A CN116901385B CN 116901385 B CN116901385 B CN 116901385B CN 202311166815 A CN202311166815 A CN 202311166815A CN 116901385 B CN116901385 B CN 116901385B
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CN
China
Prior art keywords
cavity
lower die
die
bottom plate
water meter
Prior art date
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Application number
CN202311166815.2A
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Chinese (zh)
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CN116901385A (en
Inventor
王路川
李向阳
于成刚
左信银
谭曙光
王永强
苗辉
李宜高
苗青静
于晓宇
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Yantai Humon Information Technology Co ltd
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Yantai Humon Information Technology Co ltd
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Priority to CN202311166815.2A priority Critical patent/CN116901385B/en
Publication of CN116901385A publication Critical patent/CN116901385A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/72Heating or cooling
    • B29C45/73Heating or cooling of the mould
    • B29C45/7312Construction of heating or cooling fluid flow channels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/40Removing or ejecting moulded articles
    • B29C45/4005Ejector constructions; Ejector operating mechanisms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/72Heating or cooling
    • B29C45/73Heating or cooling of the mould
    • B29C45/7337Heating or cooling of the mould using gas or steam
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/34Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3481Housings or casings incorporating or embedding electric or electronic elements

Abstract

The application relates to the technical field of injection molding, and provides an injection molding mold for a water meter shell, which comprises an upper mold assembly, a lower mold, a rubber injection pipe, a blanking assembly, a liquid cooling part and an air cooling part, wherein the upper mold assembly comprises an upper mold body, a mold cavity is arranged below the upper mold body, the blanking assembly comprises a lower mold bottom plate, a rubber injection port is arranged on the surface of the lower mold bottom plate, a first cavity is formed in the upper mold body, a second cavity is formed in the side wall of the lower mold, the liquid cooling part comprises a cooling liquid circulating pipe embedded in the second cavity, the air cooling part comprises an air pump communicated with the second cavity, one side, far away from the air pipe, of the first cavity is communicated with the lower mold, a gap is formed between the upper mold body and the inner wall of the lower mold bottom plate, and the water meter shell between the mold cavity and the lower mold bottom plate is used for accelerating molding of the water meter shell, and the injection molding mold has the characteristics of high molding efficiency and good molding quality.

Description

Water meter housing injection molding die
Technical Field
The application relates to the technical field of injection molding, in particular to an injection molding die for a water meter shell.
Background
Along with the development of more and more intelligent water meters, the requirements on the processing technology of the water meter shell are higher and higher, the water meter shell generally adopts an injection molding technology, however, after the molten plastic material is injected into the injection mold, the molten material in the mold is generally cooled through cooling pipelines arranged around the mold, and the following defects also exist in the cooling mode: on the one hand, the cooling efficiency is low, on the other hand, the cooling is uneven, and the two defects can cause the problems that the forming efficiency of the water meter shell is low and the formed water meter shell surface is easy to have defects.
Disclosure of Invention
The application aims to provide a water meter shell injection molding die, which aims to solve the problems that when the existing water meter shell injection molding die is used, the water meter shell molding efficiency is low and defects are easy to exist on the surface.
In order to achieve the above purpose, the application provides a water meter shell injection molding die, which comprises an upper die assembly, a lower die, a rubber injection pipe, a blanking assembly, a liquid cooling part and an air cooling part, wherein the upper die assembly comprises an upper die body, a die cavity is arranged below the upper die body, the blanking assembly comprises a lower die bottom plate, the lower die bottom plate is distributed at the bottom of the die cavity, a rubber injection port is arranged on the surface of the lower die bottom plate, the lower part of the upper die body is in fit connection with the lower die bottom plate, and the rubber injection pipe is communicated with the rubber injection port and is used for injecting molten materials between the die cavity and the lower die bottom plate;
the position that the last mould body is located the die cavity top has seted up first cavity, the second cavity has been seted up to the bed die lateral wall, the liquid cooling portion is including the coolant liquid circulating pipe of embedding in the second cavity, the forced air cooling portion includes the air pump with the second cavity intercommunication, be provided with the breather pipe of intercommunication first cavity and second cavity on the last mould body, one side and the bed die intercommunication that the breather pipe was kept away from to first cavity, all be provided with the clearance between last mould body and the bed die inner wall and between bed die bottom plate and the bed die inner wall for the shaping of water gauge casing between die cavity and the bed die bottom plate is accelerated.
As a further scheme of the application, the blanking assembly further comprises a movable rod and a return spring, wherein the movable rod is fixedly connected to the position, deviating from the glue injection port, below the lower die bottom plate, the return spring is movably sleeved on the surface of the movable rod, the upper die assembly comprises a hydraulic telescopic rod arranged above the upper die body, and when the hydraulic telescopic rod drives the upper die body to move, the elastic force of the return spring drives the lower die bottom plate and the water meter shell to move out of the lower die, so that the water meter shell is separated from the die cavity.
As a further scheme of the application, the hydraulic telescopic rod is further provided with a sealing shell, a material taking opening is formed in the surface of the sealing shell, the hydraulic telescopic rod is arranged at the top of the sealing shell, and the lower die is arranged at the bottom of the sealing shell.
As a further scheme of the application, the blanking assembly further comprises a rotating tube, a driving part and a transmission gear, wherein the rotating tube and the driving part are arranged at the bottom of the lower die, the movable rod is movably sleeved in the rotating tube, the surface of the movable rod is connected with a limiting rib extending along the axial direction, the inner wall of the rotating tube is provided with a limiting groove which is in sliding connection with the limiting rib, the transmission gear is fixedly connected to the surface of the rotating tube, the driving part comprises a driving motor and a driving gear, the driving motor is connected with the driving gear, and the driving gear is meshed with the transmission gear and is used for driving the lower die bottom plate to rotate to the position of the material taking opening by taking the movable rod as the axis.
As a further scheme of the application, a plugboard is fixedly connected to the position, which is attached to the lower die, below the upper die assembly, a sealing ring is fixedly sleeved on the surface of the plugboard, the plugboard and the sealing ring are connected in the second cavity in a plug-in mode, and one end, away from the first cavity, of the vent pipe is embedded in the plugboard.
As a further scheme of the application, the outer side wall of the die cavity is connected with a plurality of heat conducting plates, the inner wall of the lower die is provided with a plurality of clamping grooves, the heat conducting plates are connected in the clamping grooves in an inserting way, the bottom of the bottom plate of the lower die is connected with a cushion block, and the cushion block is positioned at the bottom of the lower die.
As a further scheme of the application, the liquid cooling part further comprises cooling liquid circulation equipment, the cooling liquid circulation equipment is connected with the cooling liquid circulation pipe, the air cooling part further comprises an air injection valve, gas cooling equipment and a return pipe, the air outlet end of the air pump is connected with the air injection valve, the air inlet end is connected with the gas cooling equipment, one end of the return pipe is connected to the bottom of the lower die, the other end of the return pipe is connected with the gas cooling equipment, the air injection valve is arranged on the side wall of the lower die and is communicated with the second cavity, and the air injection valve is distributed at a position far away from the vent pipe.
The beneficial effects of the application are as follows: the application utilizes the design of matching the air pump and the cooling liquid circulating pipe to enable the low-temperature air flow to circulate among the second cavity, the vent pipe, the first cavity and the lower die, and can lead the heat of the molten material between the die cavity and the lower die bottom plate to be evenly and rapidly dissipated, thereby improving the molding efficiency and the molding effect of the water meter shell between the die cavity and the lower die bottom plate.
Drawings
Fig. 1 is a perspective view of a seal housing in an embodiment of the application.
FIG. 2 is a schematic diagram of an upper die assembly according to an embodiment of the present application.
FIG. 3 is a partial perspective view of an upper die assembly in accordance with an embodiment of the present application.
Fig. 4 is a plan view of a lower mold in an embodiment of the present application.
Fig. 5 is a perspective view of a blanking assembly according to an embodiment of the present application.
Fig. 6 is a schematic structural diagram of a liquid cooling portion according to an embodiment of the present application.
Fig. 7 is a schematic structural diagram of a wind cooling part according to an embodiment of the present application.
Fig. 8 is a schematic structural diagram of an injection mold for a water meter housing according to an embodiment of the application.
Fig. 9 is an enlarged view of a portion of fig. 8 a in accordance with the present application.
Fig. 10 is an enlarged view of a portion of fig. 8 b in accordance with the present application.
Fig. 11 is a plan view of a lower mold, a liquid cooling portion and an air cooling portion in an embodiment of the present application.
Fig. 12 is a schematic drawing of a water meter housing injection mold according to an embodiment of the present application.
Fig. 13 is a schematic drawing of blanking of a water meter housing according to an embodiment of the present application.
Reference numerals: 1-sealing shell, 11-material taking opening, 2-upper die assembly, 21-hydraulic telescopic rod, 22-upper die body, 23-die cavity, 24-plug board, 25-vent pipe, 26-first cavity, 27-heat conducting plate, 28-sealing ring, 3-lower die, 31-second cavity, 32-clamping groove, 4-blanking assembly, 41-lower die bottom plate, 411-cushion block, 412-glue injection opening, 42-movable rod, 421-limit rib, 43-reset spring, 44-rotary pipe, 45-driving part, 46-transmission gear, 5-liquid cooling part, 51-cooling liquid circulation device, 52-cooling liquid circulation pipe, 6-air cooling part, 61-air pump, 62-air injection valve, 63-air cooling device, 64-return pipe, 7-water meter shell and 8-glue injection pipe.
Description of the embodiments
In order to make the objects, technical solutions and advantages of the present application more clear, the present application will be described in further detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
Specific implementations of the application are described in detail below in connection with specific embodiments.
Referring to fig. 1 to 13, an injection molding mold for a water meter housing provided by the embodiment of the application comprises an upper mold assembly 2, a lower mold 3, a glue injection pipe 8, a blanking assembly 4, a liquid cooling part 5 and an air cooling part 6, wherein the upper mold assembly 2 comprises an upper mold body 22, a mold cavity 23 is arranged below the upper mold body 22, the blanking assembly 4 comprises a lower mold bottom plate 41, the lower mold bottom plate 41 is distributed at the bottom of the mold cavity 23, a glue injection port 412 is arranged on the surface of the lower mold bottom plate 41, the lower side of the upper mold body 22 is in fit connection with the lower mold bottom plate 41, and the glue injection pipe 8 is communicated with the glue injection port 412 and is used for injecting molten materials between the mold cavity 23 and the lower mold bottom plate 41;
the position that the upper die body 22 is located the die cavity 23 top has seted up first cavity 26, the second cavity 31 has been seted up to the lower mould 3 lateral wall, liquid cooling portion 5 includes the coolant circulation pipe 52 of embedding in the second cavity 31, forced air cooling portion 6 includes the air pump 61 with second cavity 31 intercommunication, be provided with the breather pipe 25 of intercommunication first cavity 26 and second cavity 31 on the upper die body 22, one side that the breather pipe 25 was kept away from to first cavity 26 communicates with the lower mould 3, all be provided with the clearance between upper die body 22 and the lower mould 3 inner wall and between lower mould bottom plate 41 and the lower mould 3 inner wall for the shaping of water gauge casing 7 between acceleration die cavity 23 and the lower mould bottom plate 41.
Further, the fixed connection of position that goes up the die assembly 2 below and the laminating of bed die 3 has plugboard 24, plugboard 24 fixed surface cover is equipped with sealing washer 28, plugboard 24 and sealing washer 28 insert and close and connect in second cavity 31, the one end that first cavity 26 was kept away from to breather pipe 25 is embedded in plugboard 24, after plugboard 24 and sealing washer 28 insert in the second cavity 31, play sealed second cavity 31's effect.
Further, the outer side wall of the die cavity 23 is connected with a plurality of heat conducting plates 27, a plurality of clamping grooves 32 are formed in the inner wall of the lower die 3, the heat conducting plates 27 are connected in the clamping grooves 32 in a plugging mode, the bottom of the lower die bottom plate 41 is connected with a cushion block 411, the cushion block 411 is located at the bottom of the lower die 3, the cushion block 411 is arranged, a gap is formed between the lower die bottom plate 41 and the bottom of the lower die 3, low-temperature airflow is conveniently circulated outside the die cavity 23, between the lower die 3 and the lower die bottom plate 41, and the cooling and forming efficiency of molten materials can be improved.
Further, the liquid cooling portion 5 further includes a cooling liquid circulation device 51, the cooling liquid circulation device 51 is connected with the cooling liquid circulation tube 52, the air cooling portion 6 further includes an air injection valve 62, a gas cooling device 63 and a return pipe 64, an air outlet end of the air pump 61 is connected with the air injection valve 62, an air inlet end is connected with the gas cooling device 63, one end of the return pipe 64 is connected to the bottom of the lower die 3, the other end is connected with the gas cooling device 63, the air injection valve 62 is mounted on a side wall of the lower die 3 and is communicated with the second cavity 31, and the air injection valve 62 is distributed at a position far away from the vent pipe 25.
In the embodiment of the application, after the mold is closed, the plug board 24 is located in the second cavity 31, the bottom of the mold cavity 23 is adhered to the upper surface of the lower mold bottom plate 41 to achieve the purpose of forming a closed space, when the molten material is extruded between the mold cavity 23 and the lower mold bottom plate 41 through the glue injection port 412, the heat of the molten material is transferred to the periphery of the lower mold 3 through the mold cavity 23 and the heat conducting plate 27, and is transferred upwards into the first cavity 26 and downwards to the surface of the lower mold bottom plate 41, and when the cooling liquid circularly flows in the cooling liquid circulation pipe 52, the air in the second cavity 31 can be quickly cooled, the temperature of the side wall of the lower mold 3 can be reduced, so that the efficiency of transferring the heat of the molten material to the lower mold 3 through the mold cavity 23 and the heat conducting plate 27 can be improved, and the cooling and molding speed of the molten material is improved.
In addition, the air pump 61 discharges the low-temperature air into the second cavity 31 through the air injection valve 62, the low-temperature air entering the second cavity 31 continues to enter the first cavity 26 above the die cavity 23 through the air pipe 25, the low-temperature air entering the first cavity 26 can enter the gaps between the upper die body 22 and the lower die 3 and between the lower die bottom plate 41 and the lower die 3 from the first cavity 26, and finally the air flows from the return pipe 64 to the air cooling device 63, so that the low-temperature air continuously flows in the gaps between the second cavity 31, the first cavity 26, the upper die body 22 and the lower die 3 and the gaps between the lower die bottom plate 41 and the lower die 3, the heat around the die cavity 23 and on the surface of the lower die bottom plate 41 can be rapidly and uniformly discharged, the cooling molding efficiency of the molten material is further improved, and meanwhile, the problems of unsmooth demolding or poor surface quality of the water meter housing 7 caused by incomplete local cooling of the molten material can be avoided, and the molding efficiency and the water meter molding effect of the housing 7 can be improved.
In summary, the design of the air pump 61 and the cooling liquid circulation pipe 52 are utilized in the application, so that the low-temperature air flow can circulate in the second cavity 31, the ventilation pipe 25, the first cavity 26 and the lower die 3, and further the heat of the molten material can be evenly and rapidly dissipated, thereby improving the molding efficiency and the molding effect of the water meter housing 7.
Referring to fig. 1 to 13, in an embodiment of the present application, the blanking assembly 4 further includes a movable rod 42 and a return spring 43, the movable rod 42 is fixedly connected to a position below the lower die bottom plate 41, which is deviated from the glue injection hole 412, the return spring 43 is movably sleeved on the surface of the movable rod 42, the upper die assembly 2 includes a hydraulic telescopic rod 21 installed above the upper die body 22, when the hydraulic telescopic rod 21 drives the upper die body 22 to move, the lower die bottom plate 41 and the water meter housing 7 are driven to move out of the lower die 3 by the elastic force of the return spring 43, so that the water meter housing 7 is separated from the die cavity 23, and after the return spring 43 is reset, the lower die bottom plate 41 can be lifted from the lower die 3.
Further, the device further comprises a sealing shell 1, a material taking opening 11 is formed in the surface of the sealing shell 1, the hydraulic telescopic rod 21 is installed at the top of the sealing shell 1, and the lower die 3 is installed at the bottom of the sealing shell 1.
Further, the blanking assembly 4 further comprises a rotating tube 44, a driving part 45 and a transmission gear 46, the rotating tube 44 and the driving part 45 are installed at the bottom of the lower die 3, the movable rod 42 is movably sleeved in the rotating tube 44, a limiting rib 421 extending along the axial direction is connected to the surface of the movable rod 42, a limiting groove which is slidably connected with the limiting rib 421 is formed in the inner wall of the rotating tube 44, the transmission gear 46 is fixedly connected to the surface of the rotating tube 44, the driving part 45 comprises a driving motor and a driving gear, the driving motor is connected with the driving gear, and the driving gear is meshed with the transmission gear 46 and used for driving the lower die bottom plate 41 to rotate to the position of the material taking opening 11 by taking the movable rod 42 as an axis.
In the embodiment of the application, when the hydraulic telescopic rod 21 drives the upper die body 22 to ascend, so that the water meter shell 7 in the die cavity 23 is left on the upper surface of the lower die bottom plate 41, the driving part 45 drives the rotating pipe 44 to rotate 90 degrees or 180 degrees through the transmission gear 46, and the rotating pipe 44 drives the lower die bottom plate 41 to rotate 90 degrees or 180 degrees around the movable rod 42 through the limiting rib 421, so that the water meter shell 7 is rotated to the position of the material taking opening 11, and a worker can take out the water meter shell 7 without extending hands between the dies, so that the water meter shell has the characteristics of safe operation and convenience in material taking.
The working principle of the application is as follows: firstly, the hydraulic telescopic rod 21 drives the upper die body 22 to move to the upper surface of the lower die 3 for die assembly, after die assembly, the plug board 24 is positioned in the second cavity 31, the bottom of the die cavity 23 is jointed with the upper surface of the lower die bottom plate 41 to achieve the purpose of forming a closed space, then the rubber injection pipe 8 penetrates through the bottom of the lower die 3 and extrudes molten materials into the space between the die cavity 23 and the lower die bottom plate 41 through the rubber injection port 412, at the moment, the heat of the molten materials is transferred to the side wall of the lower die 3 through the die cavity 23 and the heat conducting plate 27 on the one hand, and then transferred to the first cavity 26 on the other hand, then, the cooling liquid circulation device 51 and the air pump 61 are started, the cooling liquid circulation device 51 circulates in the cooling liquid circulation pipe 52, the air in the side wall of the lower die 3 and the second cavity 31 can be rapidly cooled, the air generated by the air pump 61 is discharged into the second cavity 31 through the air injection valve 62, the air flow entering the second cavity 31 is quickly cooled after contacting with the cooling liquid circulation pipe 52, the cooled low-temperature air flow continuously enters the first cavity 26 above the die cavity 23 through the ventilation pipe 25, the low-temperature air entering the first cavity 26 can enter the gap between the upper die body 22 and the lower die 3 and the gap between the lower die bottom plate 41 and the lower die 3 from the first cavity 26, the final air flow flows from the return pipe 64 to the air cooling device 63, the air pump 61 discharges the cooled air flow into the second cavity 31 again, the circulation is performed, the heat around the die cavity 23 and on the surface of the lower die bottom plate 41 can be rapidly and uniformly discharged, the forming efficiency of the water meter shell 7 can be improved, then the hydraulic telescopic rod 21 drives the upper die body 22 to leave the lower die 3, the elastic force of the return spring 43 drives the lower die bottom plate 41 to be lifted upwards, the lower die bottom plate 41 is stopped after being lifted to a certain height from the lower die 3, the hydraulic telescopic rod 21 continues to drive the upper die body 22 to ascend, the water meter shell 7 in the die cavity 23 is left on the upper surface of the lower die bottom plate 41, so that the die stripping is completed, finally, the driving part 45 drives the rotating pipe 44 to rotate 90 degrees or 180 degrees through the transmission gear 46, the rotating pipe 44 drives the lower die bottom plate 41 to rotate 90 degrees or 180 degrees around the movable rod 42 through the limit rib 421, the water meter shell 7 is rotated to the position of the material taking opening 11, and a worker can take out the water meter shell 7 without stretching hands into the position between the upper die body 22 and the lower die 3.
It should be noted that the application is applicable not only to the processing of water meter housings, but also to the processing of other injection molded products.
It will be apparent to those skilled in the art that although several embodiments and examples of the present application have been described, these embodiments and examples are presented by way of example and are not intended to limit the scope of the application. These novel embodiments can be implemented in various other modes, and various omissions, substitutions, and changes can be made without departing from the spirit of the application. These embodiments and modifications thereof are included in the scope and gist of the application, and are included in the application described in the claims and their equivalents.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (3)

1. The water meter shell injection molding die is characterized by further comprising a blanking assembly, a liquid cooling part and an air cooling part, wherein the blanking assembly comprises an upper die body, a die cavity is arranged below the upper die body, the blanking assembly comprises a lower die bottom plate, the lower die bottom plate is distributed at the bottom of the die cavity, a glue injection port is arranged on the surface of the lower die bottom plate, the lower part of the upper die body is connected with the lower die bottom plate in a bonding mode, and the glue injection pipe is communicated with the glue injection port and is used for injecting molten materials between the die cavity and the lower die bottom plate;
the upper die body is provided with a vent pipe communicated with the first cavity and the second cavity, one side of the first cavity away from the vent pipe is communicated with the lower die, and gaps are formed between the upper die body and the inner wall of the lower die and between the lower die bottom plate and the inner wall of the lower die and used for accelerating the forming of a water meter shell between the die cavity and the lower die bottom plate;
the blanking assembly further comprises a movable rod and a reset spring, the movable rod is fixedly connected to the position, deviating from the glue injection port, below the lower die bottom plate, the reset spring is movably sleeved on the surface of the movable rod, the upper die assembly comprises a hydraulic telescopic rod arranged above the upper die body, and when the hydraulic telescopic rod drives the upper die body to move, the elastic force of the reset spring drives the lower die bottom plate and the water meter shell to move out of the lower die, so that the water meter shell is separated from the die cavity;
the hydraulic telescopic rod is arranged at the top of the sealing shell, and the lower die is arranged at the bottom of the sealing shell;
the blanking assembly further comprises a rotating tube, a driving part and a transmission gear, wherein the rotating tube and the driving part are arranged at the bottom of the lower die, the movable rod is movably sleeved in the rotating tube, the surface of the movable rod is connected with a limiting rib extending along the axial direction, the inner wall of the rotating tube is provided with a limiting groove which is in sliding connection with the limiting rib, the transmission gear is fixedly connected to the surface of the rotating tube, the driving part comprises a driving motor and a driving gear, the driving motor is connected with the driving gear, and the driving gear is meshed with the transmission gear and used for driving the lower die bottom plate to rotate to the position of the material taking opening by taking the movable rod as the axis;
the liquid cooling part further comprises cooling liquid circulation equipment, the cooling liquid circulation equipment is connected with the cooling liquid circulation pipe, the air cooling part further comprises an air spraying valve, gas cooling equipment and a return pipe, the air outlet end of the air pump is connected with the air spraying valve, the air inlet end of the air pump is connected with the gas cooling equipment, one end of the return pipe is connected to the bottom of the lower die, the other end of the return pipe is connected with the gas cooling equipment, the air spraying valve is installed on the side wall of the lower die and is communicated with the second cavity, and the air spraying valve is distributed at a position far away from the vent pipe.
2. The water meter shell injection molding die of claim 1, wherein a plugboard is fixedly connected to the position, which is attached to the lower die, below the upper die assembly, a sealing ring is fixedly sleeved on the surface of the plugboard, the plugboard and the sealing ring are connected in the second cavity in a plug-in mode, and one end, which is far away from the first cavity, of the ventilation pipe is embedded in the plugboard.
3. The water meter shell injection molding die of claim 2, wherein a plurality of heat conducting plates are connected to the outer side wall of the die cavity, a plurality of clamping grooves are formed in the inner wall of the lower die, the heat conducting plates are connected in the clamping grooves in an inserting mode, a cushion block is connected to the bottom of the bottom plate of the lower die, and the cushion block is located at the bottom of the lower die.
CN202311166815.2A 2023-09-12 2023-09-12 Water meter housing injection molding die Active CN116901385B (en)

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Application Number Priority Date Filing Date Title
CN202311166815.2A CN116901385B (en) 2023-09-12 2023-09-12 Water meter housing injection molding die

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Application Number Priority Date Filing Date Title
CN202311166815.2A CN116901385B (en) 2023-09-12 2023-09-12 Water meter housing injection molding die

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CN116901385B true CN116901385B (en) 2023-11-14

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CN117719121B (en) * 2024-02-08 2024-04-19 天津市金凤来仪科技有限公司 Forming die of ultrasonic water meter shell

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