CN113500745A - Injection molding device applied to double-color mold injection molding - Google Patents

Injection molding device applied to double-color mold injection molding Download PDF

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Publication number
CN113500745A
CN113500745A CN202110989590.5A CN202110989590A CN113500745A CN 113500745 A CN113500745 A CN 113500745A CN 202110989590 A CN202110989590 A CN 202110989590A CN 113500745 A CN113500745 A CN 113500745A
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China
Prior art keywords
color
mold
die
color mold
locking
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CN202110989590.5A
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Chinese (zh)
Inventor
江丽珍
韩伟
尹乐善
朱小明
童洲
梁秋华
黄凌森
杨建荣
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Guangzhou City University of Technology
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Guangzhou City University of Technology
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Priority to CN202110989590.5A priority Critical patent/CN113500745A/en
Publication of CN113500745A publication Critical patent/CN113500745A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1615—The materials being injected at different moulding stations
    • B29C45/162—The materials being injected at different moulding stations using means, e.g. mould parts, for transferring an injected part between moulding stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1675—Making multilayered or multicoloured articles using exchangeable mould halves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/2602—Mould construction elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/2602—Mould construction elements
    • B29C45/2606—Guiding or centering means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B29C45/2737—Heating or cooling means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
    • B29C45/332—Mountings or guides therefor; Drives therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/64—Mould opening, closing or clamping devices
    • B29C45/66—Mould opening, closing or clamping devices mechanical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/78—Measuring, controlling or regulating of temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/2602—Mould construction elements
    • B29C2045/2604—Latching means for successive opening or closing of mould plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B29C45/2737—Heating or cooling means therefor
    • B29C2045/2743—Electrical heating element constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B29C45/2737—Heating or cooling means therefor
    • B29C2045/2754—Plurality of independent heating or cooling means, e.g. independently controlling the heating of several zones of the nozzle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/64—Mould opening, closing or clamping devices
    • B29C45/66—Mould opening, closing or clamping devices mechanical
    • B29C2045/664—Mould opening, closing or clamping devices mechanical using mould clamping means operating independently from the mould closing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76494—Controlled parameter
    • B29C2945/76531—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76655—Location of control
    • B29C2945/76732—Mould
    • B29C2945/76752—Mould runners, nozzles

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The invention provides an injection molding device applied to double-color mold injection molding, which comprises a double-color mold injection mold, wherein the double-color mold injection mold comprises an upper mold base and a lower mold base, the upper mold base is arranged above the lower mold base, a hot runner mechanism is arranged above the upper mold base, a double-color mold injection molding mechanism is arranged between the upper mold base and the lower mold base, the double-color mold injection molding mechanism comprises a first lateral core pulling mechanism and a second lateral core pulling mechanism, and the first lateral core pulling mechanism and the second lateral core pulling mechanism are arranged in a central symmetry manner; above-mentioned structure makes first color former device and second color former device carry out the side direction through the mode locking subassembly and looses core under the condition that the mould was opened to prevent to lead to the not enough problem of the stroke of loosing core because of the not enough in mould space, and continuously carry out the equilibrium heating at the plastics melt in transportation process, make plastics remain the molten state all the time when moulding plastics, guarantee the mobility of plastics when moulding plastics, make it can not solidify the sclerosis in the runner.

Description

Injection molding device applied to double-color mold injection molding
Technical Field
The invention relates to the technical field of double-color molds, in particular to an injection molding device applied to double-color mold injection molding.
Background
In the prior art, when parts made of different materials are injected into a double-color mold, when molten materials made of different materials are injected successively, the injection molding is limited by the change of material temperature, more economical efficiency is needed to be considered for the selection of a mold injection runner, in addition, fixed templates of a mold A and a mold B are successively switched, a movable template is shared, the condition that a sliding block on the movable template is loosened may exist in the switching process of the fixed templates of the double-color mold, a conventional limiting device limits the position of the movable template, the limiting function needs to be released through manual assistance when the mold B is demolded, the operation is relatively troublesome, and the production efficiency is influenced.
The Chinese patent application No. 202110093024.6, published as 2021.05.07, discloses a floating core-pulling type double-color injection mold, wherein two groups of cavities are symmetrically arranged on a fixed template, two groups of cores and two groups of movable core-pulling inserts are symmetrically arranged on a movable template, a movable insert driving device for driving the movable core-pulling inserts to move up and down is arranged between the movable template and a movable template fixing plate, lateral inclined glue-pulling devices for die-closing and glue-sealing are symmetrically arranged on the left side and the right side of the fixed template, the movable and fixed templates are matched, during the first molding, the movable insert driving device drives the movable core-pulling inserts to move up, the lateral inclined glue-pulling device moves forward to complete the first glue-sealing, a first mold cavity for molding a hard glue part of a product is formed, after the first molding, the movable insert driving device drives the movable core-pulling inserts to move down, the lateral inclined glue-pulling device moves backward to complete the second glue-sealing, and a second mold cavity for molding a soft glue part of the product is formed, realizing double-color injection molding; the invention replaces a rotary type double-color die, and has the advantages of simple structure, simple and convenient process, high production efficiency and low cost.
However, the movable mold core-pulling insert is arranged in the mold and the movable mold core-pulling insert is driven by the movable mold insert driving device to perform core pulling, and because the space in the mold is narrow, the moving stroke of the movable mold core-pulling insert is greatly limited, so that core pulling action with too large amplitude cannot be realized, and the smooth separation of a workpiece from the mold cavity is difficult to ensure.
In the existing injection molding production, the injection amount of the two colors of plastics is different, so when the first color of plastic is injected, the second color of plastic must be kept in a heating state and waits for injection at any time. When the second color plastic is injected, the first color plastic is in a high-temperature molten state waiting for continuous injection at any time. Otherwise, the two pouring systems cannot alternately and continuously inject molten plastics with different colors into the mold cavity.
Disclosure of Invention
The invention provides an injection molding device applied to double-color mold injection molding, which can better realize lateral core pulling and solve the problem that high-temperature molten state can not be maintained due to different injection quantities of two colors of plastics.
In order to achieve the purpose, the technical scheme of the invention is as follows: an injection molding device applied to double-color mold injection molding comprises a double-color mold injection mold, wherein the double-color mold injection mold comprises an upper mold base and a lower mold base, the upper mold base is arranged above the lower mold base, a hot runner mechanism is arranged above the upper die holder, a bicolor die injection molding mechanism is arranged between the upper die holder and the lower die holder, the double-color mold injection molding mechanism comprises a first lateral core-pulling mechanism and a second lateral core-pulling mechanism, the number of the first lateral core-pulling mechanisms is two, the number of the second lateral core-pulling mechanisms is two, a first color mold core is arranged between the upper mold base and the lower mold base and between the two first lateral core-pulling mechanisms, a second color mold core is arranged between the upper mold base and the lower mold base and between the two second lateral core-pulling mechanisms, a first cavity is arranged in the first color mold core, a second cavity is arranged in the second color mold core, and the first lateral core pulling mechanism and the second lateral core pulling mechanism are arranged in a central symmetry manner; the hot runner mechanism comprises a first hot runner device and a second hot runner device, a hot runner plate is arranged above the upper die base, the first hot runner device and the second hot runner device are arranged in the hot runner plate, a first hot runner hole and a second hot runner hole are formed in the upper die base, the first hot runner device penetrates through the first hot runner hole to communicate with the first die cavity, and the second hot runner device penetrates through the second hot runner hole to communicate with the second die cavity.
In the structure, after the first color molding piece is subjected to injection molding, the upper die base is fixed, the lower die base moves downwards to open the die, at the moment, under the action of the first die locking assembly and the second die locking assembly, the first color molding device and the second color molding device move downwards along with the lower die base and move towards the outer sides of the first color die core and the second color die core, when the lower die base moves downwards to a certain position, the first die locking assembly and the second die locking assembly are opened, the first color molding device and the second color molding device can be separated from the lower die base, the lower die base can continue to move downwards to a rotatable position and then rotate, the positions of the first color die core and the second color die core are exchanged, after the exchange is completed, the lower die base moves upwards, the first die locking assembly and the second die locking assembly are reconnected with the first color molding device and the second color molding device, when the lower die base moves to contact with the upper die base, the die assembly is completed, the second-color injection molding can be started, after the second-color injection molding is finished, the lower die holder is continuously opened, the workpiece which finishes the second-color injection molding is taken out, and the one-time injection molding processing can be finished, the first color mold device and the second color mold device are driven to move downwards by the action of the mold locking component when the lower mold base moves downwards, therefore, the first color mold device and the second color mold device perform lateral core pulling under the condition that the mold is opened, so that core pulling can be realized, the lower mold base is moved after core pulling is finished, under the condition of no interference, the lower die holder can realize smooth rotation, when in injection molding, the first color plastic flows into the first cavity through the first hot runner device, in the conveying process, the first hot runner device heats the first color plastic and continuously detects whether the first color plastic is in a molten state, and the first color plastic is heated in a balanced manner, so that the first color plastic is always in a high-temperature molten state; second color plastics flow to the second die cavity through second hot runner device, and at the in-process of carrying, second hot runner device heats second color plastics, and continuously detects whether second color plastics are in the melting device to carry out the equilibrium heating to second color plastics, make second color plastics be in high temperature molten state always, make plastics when moulding plastics from this remain the molten state all the time, thereby the mobility of plastics when guaranteeing to mould plastics makes it can not solidify the sclerosis in the runner.
Further, the first hot runner device comprises a first splitter plate, a first main jet nozzle, a first heating assembly, a first heat nozzle and a first hot runner, the first splitter plate is arranged on the hot runner plate, the top end of the first splitter plate is provided with the first main jet nozzle, the bottom end of the first splitter plate is provided with the first heat nozzle, the first splitter plate between the first main jet nozzle and the first heat nozzle is internally provided with the first hot runner, and the first heating assembly is arranged on the first splitter plate; the first hot nozzle is communicated with the first cavity.
The first heating component comprises a first heating pipe, a first main jet nozzle sensor, a first main jet nozzle heater, a first heat jet nozzle sensor and a first heat jet nozzle heater, wherein a first heating pipeline groove is formed in the top end and the bottom end of the first splitter plate, the first heating pipeline groove is arranged along the shape of the first splitter plate, the first heating pipe is arranged in the first heating pipeline groove, the first main jet nozzle sensor is connected with the first main jet nozzle, the first main jet nozzle sensor is provided with the first main jet nozzle heater, the first heat jet nozzle sensor is connected with the first heat jet nozzle, the first heat jet nozzle heater is arranged on the first heat jet nozzle sensor, therefore, when the first color injection molding is carried out, plastic solution is injected from the first main jet nozzle, the plastic enters the first heat flow channel and flows to the first heat jet nozzle, and the first heating pipe continuously heats the first heat flow channel in the flowing process, so that the plastic is always in high-temperature melting state, and the plastic injection molding machine is also provided with a first main injection nozzle sensor and a first hot nozzle sensor, so that the temperature of the plastic positioned in the first main injection nozzle and the first hot nozzle can be detected in real time, and whether the plastic needs to be heated or cooled is controlled, and the temperature of the plastic flowing to the first cavity is kept balanced.
Further, the second hot runner device comprises a second splitter plate, a second main jet nozzle, a second splitter channel, a second heat nozzle and a second heating pipe, the second splitter plate is arranged in a second accommodating cavity of the hot runner plate, one end of the second splitter plate is provided with the second main jet nozzle, the second splitter plate is internally provided with the second splitter channel, the second splitter channel comprises a splitter main channel and a heat nozzle channel, the splitter main channel is connected with the second main jet nozzle, the other end of the second splitter plate is internally provided with the heat nozzle channel, the splitter main channel is also connected with the heat nozzle channel, the second heat nozzle is arranged below the other end of the second splitter plate and connected with two ends of the heat nozzle channel, the top end and the bottom end of the second splitter channel are respectively provided with the second heating pipe, and the second heating pipes are distributed along the shape of the outer contour of the second splitter plate; a second hot nozzle sensor is arranged on the second hot nozzle, a second hot nozzle heater is arranged on the second hot nozzle sensor, a heating ring is also arranged on the second main nozzle, and a second main nozzle sensor is arranged on the heating ring; the second hot nozzle is communicated with the second cavity and is arranged, when second color injection molding is carried out, plastic melt is injected from the second main nozzle, the plastic enters the second branch flow channel and flows to the second hot nozzle, in the flowing process, the second heating pipe continuously heats the second branch flow channel, the plastic is always in a high-temperature melting body, the second main nozzle sensor and the second hot nozzle sensor are further arranged, the temperature of the plastic which is located in the second main nozzle and the second hot nozzle can be detected in real time, whether the plastic needs to be heated or cooled is controlled, and therefore the temperature of the plastic flowing to the second cavity is kept balanced.
The first lateral core pulling mechanism comprises a first color mold device, a first color mold core is arranged at one end of a lower mold base, the first color mold devices are respectively arranged at two sides of the first color mold core, the first color mold device is connected with one end of an upper mold base, the first color mold core comprises a first color mold core lower seat and a first color mold core upper seat, the first color mold core lower seat is arranged on the lower mold base, the first color mold core upper seat is arranged above the first color mold core lower seat, a first injection through hole is arranged on the first color mold core upper seat, a first cavity is arranged in the first color mold core upper seat, and a first hot nozzle is arranged in the first injection through hole and is fixedly connected with the first injection through hole; the second lateral core pulling mechanism comprises a second color mold device, a second color mold core is arranged at the other end of the lower mold base, the second color mold devices are respectively arranged at two sides of the second color mold core, the second color mold device is connected with the other end of the upper mold base, the second color mold core comprises a second color mold core lower seat and a second color mold core upper seat, the second color mold core lower seat is arranged on the lower mold base, a second color mold core upper seat is arranged above the second color mold core lower seat, a second injection molding through hole is arranged on the second color mold core upper seat, the second mold cavity is arranged in the second color mold core upper seat, and the second heat nozzle is arranged in the second injection molding through hole and is fixedly connected with the first injection molding through hole; the hot runner mold comprises a first color mold device, a second color mold device and a plastic solution, wherein the first color mold device is provided with a first mold locking assembly, the first mold locking assembly is further connected with a lower die base, the second color mold device is provided with a second mold locking assembly, the second mold locking assembly is further connected with the lower die base, and therefore the plastic solution flows to a first lateral core pulling mechanism and a second lateral core pulling mechanism from a hot runner mechanism to perform first color and second color injection molding.
Further, the first color mold device comprises a first color mold seat, a first color mold inclined guide block, a first color mold limiting block, a first color mold inclined guide post and a first color mold fixing block, the first color mold fixing block is fixedly connected to the upper mold seat, the first color mold fixing block is provided with the first color mold inclined guide post, the first color mold inclined guide post inclines from top to outside of the first color mold core, the first color mold seat is provided with a first color mold inclined through hole corresponding to the first color mold inclined guide post, the first color mold inclined guide post is connected in the first color mold inclined through hole in a sliding manner, one side of the first color mold seat is provided with a first color mold limiting groove which extends from the top end of the first color mold seat to the bottom end of the first color mold seat in an inclined manner, the first color mold limiting part is arranged at the upper end of the first color mold limiting groove on the first color mold seat, the first color mold limiting block is arranged in the first color mold limiting groove, the first color die limiting block is connected with the upper die base through a first color die limiting block column, two ends of the first color die base are provided with first color die inclined guide grooves which extend downwards and outwards from the top end of the first color die base to the bottom end of the first color die base, the inclination angle of each first color die inclined guide groove is the same as that of each first color die inclined guide column, the first color die inclined guide blocks are arranged in the first color die inclined guide grooves, the first color die inclined guide blocks are connected with the upper die base through first color die inclined guide block connecting columns, and first die locking assemblies are arranged below the first color die base; the first color mold device is provided with two first color mold cores, the first color mold cores are arranged between the first color mold devices, the first color mold inclined guide block is fixed and fixed when the lower mold base moves downwards, the first color mold base moves downwards along with the first lock mold component under the action of the first lock mold component, the first color mold inclined guide groove and the first color mold inclined guide block are guided under the action of the first color mold inclined guide column and the first color mold inclined through hole, the first color mold base moves towards two sides of the first color mold cores, so that the first color mold device can be opened slowly, and the first color mold limiting block fixed on the upper mold base slides relatively in the first color mold limiting groove when the first color mold base moves downwards, and when the first color mold limiting block contacts with the first limiting part at the topmost end of the first color mold limiting groove, the first color mold base is clamped, so that the first color mold base stops moving, at this moment, the first mold locking component is disengaged, then the lower die base can continue to move downwards, and the first color die base stops moving, so that the lateral core pulling can be further better realized, and the lower die base can continue to move downwards after the lateral core pulling so as to stop moving the first color die device.
Further, the first mold locking assembly comprises a first mold locking connecting block and a first mold locking fixing block, the first mold locking fixing block is fixedly connected to the lower mold base, the first mold locking connecting block is arranged on the first color mold base, the first mold locking fixing block comprises a first mold locking fixing part and a first mold locking limiting part, the first mold locking fixing part is connected to the lower mold base, the first mold locking limiting part is arranged at the top end of the first mold locking fixing part, the first mold locking connecting block comprises a first mold locking connecting part and a first mold locking connecting part, the first mold locking connecting part is arranged at the bottom end of the first color mold base, the first mold locking connecting part is arranged on the first mold locking connecting fixing part, the first mold locking limiting part is connected with the first mold locking connecting part in a pressing manner, and therefore, when the lower mold base moves downwards, the first color mold base can move towards two sides of the first color mold core and drive the first mold locking connecting block to move, when the first color die holder moves downwards to the first limiting part at the topmost end of the first color die limiting groove, the first color die connecting block is separated from the first color die fixing block, so that the lower die holder is disconnected from the first color die device, the lower die holder can continue to move downwards and then rotate, and the lower die holder is prevented from interfering with the first color die device or the second color die device when rotating; the top of first mode locking spacing portion is equipped with the arcwall face that sets up from the outside arc extension of first mode locking spacing portion center, and the top of first mode locking connecting portion is equipped with the arcwall face that sets up from the outside arc extension of first mode locking connecting portion center, sets up from this, and when upper die base and die holder compound die, first mode locking connecting portion and first mode locking spacing portion contactless each other make the more convenient below that slides first mode locking spacing portion of first mode locking connecting portion through the effect of arcwall face.
Furthermore, a first color mold is arranged on the other side of the first color mold base, the first color mold core lower seat is arranged between the two first color molds, the first color mold core upper seat is arranged above the first color molds and is connected with the first color molds in a covering manner, and an injection molding space is formed between the first color mold core upper seat and the first color mold core lower seat as well as between the first color molds.
Further, the second color mold device comprises a second color mold seat, a second color mold inclined guide block, a second color mold limiting block, a second color mold inclined guide post and a second color mold fixing block, the second color mold fixing block is fixedly connected to the upper mold seat, the second color mold inclined guide post is arranged on the second color mold fixing block, the second color mold inclined guide post is inclined from top to outside of the second color mold core, a second color mold inclined through hole corresponding to the second color mold inclined guide post is arranged on the second color mold seat, the second color mold inclined guide post is connected in the second color mold inclined through hole in a sliding manner, a second color mold limiting groove extending from the top end of the second color mold seat to the bottom end of the second color mold seat is arranged on one side of the second color mold seat, a second limiting part is arranged at the upper end of the second color mold limiting groove on the second color mold seat, and a second color mold limiting block is arranged in the second color mold limiting groove, the second color die is characterized in that the second color die limiting block is connected with the upper die base through a second color die limiting block column, second color die inclined guide grooves extending downwards and outwards from the top end of the second color die base to the bottom end of the second color die base are arranged at two ends of the second color die base, the inclination angle of each second color die inclined guide groove is the same as that of each second color die inclined guide column, the second color die inclined guide blocks are arranged in the second color die inclined guide grooves, the second color die inclined guide blocks are connected with the upper die base through second color die inclined guide block connecting columns, and second die locking assemblies are arranged below the second color die base; the second color mold device is provided with two second color mold cores which are arranged between the second color mold devices, so that the second color mold oblique guide blocks are fixed when the lower mold base moves downwards, the second color mold base moves downwards along with the second mold locking assembly under the action of the second mold locking assembly, the second color mold oblique guide grooves and the second color mold oblique guide blocks are guided under the action of the second color mold oblique guide columns and the second color mold oblique through holes, the second color mold base moves towards two sides of the second color mold cores, the second color mold device can be opened slowly, and the second color mold limiting block fixed on the upper mold base slides relatively in the second color mold limiting groove when the second color mold base moves downwards, and the second color mold base is blocked when the second color mold limiting block contacts with the second limiting part at the topmost end of the second color mold limiting groove, so that the second color mold base stops moving, at this moment, second mode locking subassembly is throw off, then the lower bolster can continue downstream, and second color die holder stop motion, like this, can further better realization side direction loose core and side direction loose core back lower bolster can continue downstream and let second color die device stop motion.
Further, the second mold locking component comprises a second mold locking connecting block and a second mold locking fixing block, the second mold locking fixing block is fixedly connected to the lower mold base, the second mold locking connecting block is arranged on the second mold base, the second mold locking fixing block comprises a second mold locking fixing part and a second mold locking limiting part, the second mold locking fixing part is connected to the lower mold base, the second mold locking limiting part is arranged at the top end of the second mold locking fixing part, the second mold locking connecting block comprises a second mold locking connecting part and a second mold locking connecting part, the second mold locking connecting part is arranged at the bottom end of the second mold base, a second mold locking connecting part is arranged on the second mold locking connecting fixing part, the second mold locking limiting part is connected with the second mold locking connecting part in a pressing manner, and therefore, when the lower mold base moves downwards, the second mold base can move towards two sides of the second mold core and drive the second mold locking connecting block to move, when the second color die holder moves downwards to the topmost end of the second color die limiting groove, the second color die connecting block is separated from the second color die fixing block, so that the lower die holder is disconnected from the second color die device, and the lower die holder can continue to move downwards to rotate; the top of the spacing portion of second mode locking is equipped with the arcwall face that sets up from the outside arc extension of the spacing portion center of second mode locking, and the top of second mode locking connecting portion is equipped with the arcwall face that sets up from the outside arc extension of the outside downward in second mode locking connecting portion center, sets up from this, and when upper die base and die holder compound die, second mode locking connecting portion and the spacing portion of second mode locking contact each other, make the second mode locking connecting portion more convenient below that slides the spacing portion of second mode locking through the effect of arcwall face.
Furthermore, a second color mold is arranged on the other side of the second color mold base, the second secondary color mold core lower seat is arranged between the two second color molds, the second color mold core upper seat is arranged above the second color mold and covers and is connected with the second color mold, and an injection molding space is formed between the second color mold core upper seat and the second color mold core lower seat as well as between the second color mold core upper seat and the second color mold, so that the second color injection molding can be carried out in the second injection molding space after the second mold closing is finished.
Drawings
FIG. 1 is an exploded view of a two-color injection molding apparatus according to the present invention.
Fig. 2 is a schematic mechanical view of a first hot runner apparatus of the present invention.
FIG. 3 is a cross-sectional view of a first hot runner apparatus of the present invention.
FIG. 4 is a schematic mechanical view of a second hot runner apparatus of the present invention.
FIG. 5 is a cross-sectional view of a second manifold in a second hot runner apparatus of the present invention.
FIG. 6 is a schematic structural diagram of the two-color mold injection mechanism of the present invention.
FIG. 7 is a schematic structural view of the two-color mold injection mechanism of the present invention with the upper mold base removed.
Fig. 8 is an exploded view of the first color molding apparatus according to the present invention.
Fig. 9 is a schematic structural diagram of a first mold locking assembly of the present invention.
Fig. 10 is an exploded view of a second color pattern device of the present invention.
Fig. 11 is a schematic mechanical diagram of a second clamping assembly according to the present invention.
Figure 12 is an exploded view of the first and second lateral core pulling mechanisms of the present invention.
FIG. 13 is a schematic view of the connection of the hot runner mechanism of the present invention to a two-color mold injection mechanism.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 13, an injection molding apparatus applied to dual-color mold injection molding includes a dual-color mold injection mold, which includes an upper mold plate 01, a hot runner plate 70, an upper mold base 1, a lower mold base 2, a support plate 02, and a lower mold plate 100. The upper die plate 01 is installed at the upper end of the hot runner plate 70, the hot runner plate 70 is installed at the upper end of the upper die holder 1, the lower die holder 2 is installed on the support plate 02, and the support plate 02 is installed on the lower die plate 100. The bottom of the upper die holder 1 is provided with a first cavity and a second cavity. The upper die holder 1 is arranged above the lower die holder 2, a hot runner mechanism 7 is arranged above the upper die holder 1, a bicolor die injection molding mechanism 03 is arranged between the upper die holder 1 and the lower die holder 2, the bicolor die injection molding mechanism 03 comprises a first lateral core-pulling mechanism 3 and a second lateral core-pulling mechanism 4, and the first lateral core-pulling mechanism 3 and the second lateral core-pulling mechanism 4 are arranged in a central symmetry manner; the hot runner mechanism 7 comprises a first hot runner device 71 and a second hot runner device 72, a hot runner plate 70 is arranged above the upper die base 1, the first hot runner device 71 and the second hot runner device 72 are arranged in the hot runner plate 70, a first hot runner hole 11 and a second hot runner hole 12 (shown in fig. 6) are arranged on the upper die base 1, the first hot runner device 71 penetrates through the first hot runner hole 11 to communicate with the first die cavity, and the second hot runner device 72 penetrates through the second hot runner hole 12 to communicate with the second die cavity.
In order to better realize the motion guidance of the upper die holder and the lower die holder, guide sleeves are installed on the upper die holder 1, guide posts 200 corresponding to the upper and lower positions of the guide sleeves and having the same number are installed on the lower die holder 2, and in order to better realize the ejection of the product, an ejection mechanism 300 penetrating through the lower die holder 2 is installed on the lower die plate 100, and in the embodiment, the ejection mechanism 300 is of an existing structure.
As shown in fig. 2 and 3, the first hot runner apparatus 71 includes a first flow dividing plate 711, a first main nozzle 712, a first heating assembly 713, a first heat nozzle 714, and a first hot runner 715 (shown in fig. 3), the first flow dividing plate 711 is disposed in the first receiving cavity 700 of the heat runner plate 70, the first main nozzle 712 is disposed at the top end of the first flow dividing plate 711, the first heat nozzle 714 is disposed at the bottom end of the first flow dividing plate 711, the first hot runner 715 is disposed in the first flow dividing plate 711 between the first main nozzle 712 and the first heat nozzle 714, and the first heating assembly 713 is disposed on the first flow dividing plate 711; the first thermal nozzle 714 is in communication with the first cavity.
The first heating module 713 includes a first heating pipe 710, a first main nozzle sensor 716, a first main nozzle heater 717, a first heat nozzle sensor 718 and a first heat nozzle heater 719, a first heating duct groove 7101 is provided at both the top end and the bottom end of the first flow dividing plate 711, the first heating duct groove 7101 is arranged along the length direction of the first flow dividing plate 711, the first heating pipe 710 is provided in the first heating duct groove 7101, the first main nozzle sensor 716 is connected to the first main nozzle 712, the first main nozzle sensor 716 is provided with the first main nozzle heater 717, the first heat nozzle sensor 718 is connected to the first heat nozzle 714, the first heat nozzle heater 719 is provided on the first heat sensor 718, whereby when performing the first color injection, the plastic melt is injected from the first main nozzle 712, the plastic enters the first heat runner 715 and flows to the first heat nozzle 714, during the flow, the first heating pipe 710 continuously heats the first hot runner 715, so that the plastic is always in a high-temperature molten state, and the first main nozzle sensor 716 and the first hot nozzle sensor 718 are further provided, so that the temperature of the plastic in the first main nozzle 712 and the first hot nozzle 714 can be detected in real time, and whether the plastic needs to be heated or cooled is controlled, so that the temperature of the plastic flowing to the first cavity is kept balanced.
As shown in fig. 4 and 5, the second hot runner 72 device includes a second flow dividing plate 721, a second main nozzle 722, a second flow dividing channel 723 (shown in fig. 5), a second heat nozzle 724, and a second heating pipe 725, the second flow dividing plate 721 is disposed in the second receiving cavity 701 of the heat runner plate 70, the second main nozzle 722 is disposed at one end of the second flow dividing plate 721, the second flow dividing plate 721 is provided with the second flow dividing channel 723, the second flow dividing channel 723 includes a flow dividing main channel 7231 and a heat nozzle channel 7232 (shown in fig. 5), the flow dividing main channel 7231 is connected to the second main nozzle 722, the heat nozzle channel 7232 is disposed in the other end of the second flow dividing plate 721, the flow dividing main channel 7231 is further connected to the heat nozzle channel 7232, the second heat nozzle is disposed below the other end of the second flow dividing plate 721 and connected to both ends of the heat nozzle channel 7232, and the second heating pipe 725 is disposed at both top end and bottom end of the second flow dividing channel 723, the second heating pipes 725 are arranged along the outer contour shape of the second splitter plate; second heat nozzle sensor 7241 is disposed on second heat nozzle 724, second heat nozzle heater 7242 is disposed on second heat nozzle sensor 7241, heating ring 7221 (shown in fig. 5) is further disposed on second primary nozzle 722, and second primary nozzle sensor 7222 is disposed on heating ring 7221; the second hot nozzle 724 is also communicated with the second cavity, so that the plastic melt is injected from the second main injection nozzle 722 when second color injection molding is carried out, the plastic enters the second branch flow channel 723 and flows to the second hot nozzle 724, the second heating pipe 725 continuously heats the second branch flow channel 723 in the flowing process, so that the plastic is always in a high-temperature molten state, and the second main injection nozzle sensor 7221 and the second hot nozzle sensor 7241 are also arranged, so that the temperature of the plastic positioned in the second main injection nozzle 722 and the second hot nozzle 724 can be detected in real time, whether the plastic needs to be heated or cooled is controlled, and the temperature of the plastic flowing to the second cavity is kept balanced.
As shown in fig. 6 to 13, the first lateral core-pulling mechanism 3 comprises a first color molding device 5, a first color mold core 31 is installed at one end of the lower mold base 2, first color mold devices 5 are respectively arranged at two sides of the first color mold core 31, the first color mold devices 5 are connected with one end of the upper mold base 1, and the first color mold device 5 can move relative to the upper mold base 1, the first color mold core 31 includes a first color mold core lower seat 311 and a first color mold core upper seat 312 (shown in fig. 13), the first color mold core lower seat 311 is disposed on the lower mold base 2, a first cavity upper seat 312 is disposed above the first cavity lower seat 311, a first injection through hole 313 is disposed on the first cavity upper seat 312, a first cavity is disposed on the first cavity upper seat 312, the first heat nozzle 714 is arranged in the first injection molding through hole 313 and is fixedly connected with the first injection molding through hole 313; the second lateral core pulling mechanism 4 includes a second color mold device 6, a second color mold core 41 is installed at the other end of the lower mold base 2, the second color mold device 6 is respectively installed at two sides of the second color mold core 41, the second color mold device 6 is connected with the other end of the upper mold base 1, the second color mold device 6 can move relative to the upper mold base 1, the second color mold core 41 includes a second color mold core lower seat 411 and a second color mold core upper seat 412 (shown in fig. 13), the second color mold core lower seat 411 is arranged on the lower mold base 2, the second color mold core upper seat 412 is arranged above the second color mold core lower seat 411, a second injection through hole 413 is arranged on the second color mold core upper seat 411, the second cavity is arranged on the second color mold core upper seat 411, and the second heat nozzle 724 is arranged in the second injection through hole 413 and is fixedly connected with the first injection through hole 413; the first color former device 5 is provided with a first mold locking component 50, the first mold locking component 50 is further connected with the lower die holder 2, the second color former device 6 is provided with a second mold locking component 60, and the second mold locking component 60 is further connected with the lower die holder 2.
As shown in fig. 7 and 8, the first color mold device 5 includes a first color mold seat 51, a first color mold slant guide block 52, a first color mold limiting block 53, a first color mold slant guide post 54 and a first color mold fixing block 55, the first color mold fixing block 55 is fixedly connected to the upper mold seat 1, the first color mold slant guide post 54 is disposed on the first color mold fixing block 55, the first color mold slant guide post 54 is inclined from top to outside of the first color mold core 31, a first step is disposed at an upper end of the first color mold slant guide post 54, the first step is disposed in a first step hole at an upper end of the first color mold fixing block 55, the first color mold slant guide post 54 is axially limited by the upper mold seat 1, a first color mold slant through hole 541 corresponding to the first color mold slant guide post 54 is disposed on the first color mold seat 51, the first color mold slant guide post 54 is slidably connected in the first color mold slant through hole 541, and a side of the first color mold seat 51 is disposed on the first color mold seat 51 and extends from a top end of the first color mold seat 51 to bottom A first color mold limiting groove 531 (shown in fig. 7) at the bottom end, a first limiting portion 5311 is disposed at the upper end of the first color mold limiting groove 531 on the first color mold base 51, in this embodiment, the outer side surface of the first color mold base 51 is an inclined surface, the inclination angle of the first color mold limiting groove 531 is the same as the inclination angle of the first color mold inclined guide pillar 54, a first color mold limiting block 53 is disposed in the first color mold limiting groove 531, the first color mold limiting block 53 is connected to the upper mold base through a first color mold limiting block pillar (not shown), first color mold inclined guide grooves 521 extending downward and outward from the top end of the first color mold base 51 to the bottom end of the first color mold base 51 are disposed at the two ends of the first color mold base 51, the inclination angle of the first color mold inclined guide grooves 521 is the same as the inclination angle of the first color mold inclined guide pillar 54, and the first color mold inclined guide blocks 52 are disposed in the first color mold inclined guide grooves 521, the first color mold slant guide block 52 is connected with the upper mold base 51 through a first color mold slant guide block connecting column (not shown in the figure), and a first mold locking component 50 is arranged below the first color mold base 51; the first color mold device 5 is provided with two first color mold cores 31 arranged between the first color mold device 5, so that when the lower mold base 2 moves downwards, the first color mold slant guide block 52 is fixed, the first color mold base 51 moves downwards along with the first lock mold component 50, under the action of the first color mold slant guide column 54 and the first color mold slant through hole 541, the first color mold base 51 moves towards the outer side of the first color mold core 31 due to the guiding action of the first color mold slant guide groove 521, so that the first color mold device 5 can be opened slowly in the lateral direction, and due to the arrangement of the first color mold limiting block 53 fixed on the upper mold base 51, when the first color mold base 51 moves downwards, the first color mold limiting block 53 slides relatively in the first color mold limiting groove 531, when the first color mold limiting block 53 contacts the first limiting part at the topmost end of the first color mold limiting groove 531, the first color mold base 51 is blocked, therefore, the first color mold seat 51 stops moving, at the moment, the first mold locking component is disengaged, the lower mold seat can continue to move downwards, and the first color mold seat stops moving, so that the lateral core pulling and the lateral core pulling rear lower mold seat can continue to move downwards to stop moving of the first color mold device can be further and better realized.
As shown in fig. 7 to 9, the first die locking assembly 50 includes a first die locking piece 501 and a first die locking fixing block 502, the first die locking fixing block 502 is fixedly connected to the lower die holder 2, the first die locking piece 501 is disposed on the first color die holder 51, the first die locking fixing block 502 includes a first die locking fixing part 5021 and a first die locking stopper 5022, the first die locking fixing part 5021 is connected to the lower die holder 2, a first die locking stopper 5022 is disposed at a top end of the first die locking fixing part 5021, the first die locking piece 501 includes a first die locking connection fixing part 5011 and a first die locking connection part 5012, the first die locking connection fixing part 5011 is disposed at a bottom end of the first color die holder 51, a first die locking connection part 5012 is disposed on the first die locking connection fixing part 5011, and the first die locking stopper 5022 is press-connected to the first die connection part 5012, thereby being disposed, when the lower die holder 2 moves downwards, the first color die holder 51 moves towards the outer side of the first color die core 31 and drives the first die locking connecting block 501 to move, when the first color die holder 51 moves downwards to the first limiting part at the topmost end of the first color die limiting groove 531, the first color die connecting block 501 leaves the first color die fixing block 502, so that the lower die holder 2 is disconnected from the first color die device 5, and the lower die holder 2 can continue to move downwards and then rotate, so that interference can be better avoided.
As shown in fig. 9, the top end of the first mold locking stopper 5022 is provided with an arc-shaped surface extending from the center of the first mold locking stopper 5022 to the outside downward arc, and the top end of the first mold locking connecting part 5012 is provided with an arc-shaped surface extending from the center of the first mold locking connecting part 5012 to the outside downward arc, so that the first mold locking connecting part 5012 and the first mold locking stopper 5022 are in contact with each other when the upper mold base 1 and the lower mold base 2 are closed, and the first mold locking connecting part can slide to the lower side of the first mold locking stopper more conveniently through the arc-shaped surface.
As shown in fig. 8, 12 and 13, a first color mold 511 is disposed on the other side of the first color mold base 51, the first color cavity lower base 311 is disposed between the two first color molds 511, the first color cavity upper base 312 is disposed above the first color mold 511 and covers and connects the first color mold 511, and an injection space (not shown) is formed between the first color cavity upper base 312 and the first color cavity lower base 311 and the first color mold 511.
As shown in fig. 7 and 10, the second color mold device 6 includes a second color mold seat 61, a second color mold slant guide block 62, a second color mold limiting block 63, a second color mold slant guide post 64, and a second color mold fixing block 65, the second color mold fixing block 65 is fixedly connected to the upper mold seat 1, the second color mold slant guide post 64 is disposed on the second color mold fixing block 65, the second color mold slant guide post inclines from top to outside of the second color mold core, a second step is disposed at an upper end of the second color mold slant guide post 64, the second step is disposed in a second step hole at an upper end of the second color mold fixing block 65, and performs axis limitation on the second color mold slant guide post through the upper mold seat 1, a second color mold slant through hole 641 corresponding to the second color mold slant guide post 64 is disposed on the second color mold seat 61, the second color mold slant guide post 64 is slidably connected in the second color mold through hole, and a side of the second color mold seat 61 is disposed on a side of the second color mold seat 61, the second color mold seat 61 extends from a top end of the second color mold seat 61 to a bottom end of the second color mold seat 641 in a downward slant guide seat 61 in an outward direction A second color mold limiting groove 631 (shown in fig. 7), a second limiting part 6311 is disposed on the second color mold seat 61 and located at the upper end of the second color mold limiting groove 631, in this embodiment, the outer side surface of the second color mold seat 61 is a slope, the inclination angle of the second color mold limiting groove 631 is the same as the inclination angle of the second color mold guiding pin 64, a second color mold limiting block 63 is disposed in the second color mold limiting groove 631, the second color mold limiting block 63 is connected to the upper mold seat 621 through the second color mold limiting pin (not shown), second color mold guiding grooves 621 extending from the top end of the second color mold seat 61 to the bottom end of the second color mold seat 61 are disposed at the two ends of the second color mold seat 61, the inclination angle of the second color mold guiding grooves 621 is the same as the inclination angle of the second color mold guiding pin 64, the second color mold guiding pin 62 is disposed in the second color mold guiding grooves 62, and the second color mold guiding pin 62 is connected to the upper mold through the second color mold guiding pin (not shown in the figures) A second mold locking assembly 60 is arranged below the second color mold base 61; the second color mold device 6 is provided with two second color mold inserts 41 arranged between the second color mold device 6, so that the second color mold inclined guide block 62 is fixed when the lower mold base 2 moves downward, the second color mold base 61 moves downward along with the second mold locking assembly 60, the second color mold base 61 moves toward the outer side of the second color mold insert 41 due to the guiding action of the second color mold inclined guide slot 621, so that the second color mold device 6 can be opened slowly, and the second color mold limiting block 63 fixed on the upper mold base 1 slides relatively in the second color mold limiting slot 631 when the second color mold base 61 moves downward, when the second color mold limiting block 63 contacts the second limiting portion at the topmost end of the second color mold limiting slot 631, the second color mold base 61 is locked, so that the second color mold base 61 stops moving, and at this time, the second mold locking assembly is released, the lower die holder can continue to move downwards, and the second color die holder stops moving, so that the lateral core pulling can be further better realized, and the lower die holder can continue to move downwards to stop moving the second color die device after the lateral core pulling.
As shown in fig. 10 and 11, the second mold clamping assembly 60 includes a second mold clamping connection block 601 and a second mold clamping fixing block 602, the second mold clamping fixing block 602 is fixedly connected to the lower mold base 2, the second mold clamping connection block 601 is disposed on the second mold base 61, the second mold clamping fixing block 602 includes a second mold clamping fixing portion 6021 and a second mold clamping limiting portion 6022, the second mold clamping fixing portion 6021 is connected to the lower mold base 2, a second mold clamping limiting portion 6022 is disposed at a top end of the second mold clamping fixing portion 6021, the second mold clamping connection block 601 includes a second mold clamping connection fixing portion 6011 and a second mold clamping connection portion 6012, the second mold clamping connection fixing portion 6011 is disposed at a bottom end of the second mold base 61, a second mold clamping connection portion 6012 is disposed on the second mold clamping connection fixing portion 6011, and the second mold clamping limiting portion 6022 is press-connected to the second mold clamping connection portion 6012, thereby being disposed, when the lower die holder 2 moves downwards, the second die holder 61 moves towards the outer side of the second die core 41 and drives the second die locking connecting block 601 to move, when the second die holder 41 moves downwards to the second limiting part at the topmost end of the second die limiting groove 631, the second die locking connecting block 601 leaves the second die fixing block 602, so that the lower die holder 2 is disconnected from the second die device 6, and the lower die holder can continue to move downwards and then rotate, so that interference can be better avoided.
As shown in fig. 11, the top end of the second mode locking limiting portion 6022 is provided with an arc surface extending from the center of the second mode locking limiting portion 6022 to the outside downward arc, and the top end of the second mode locking connecting portion 6012 is provided with an arc surface extending from the center of the second mode locking connecting portion 6012 to the outside downward arc, so that when the upper die holder 1 and the lower die holder 2 are closed, the second mode locking connecting portion 6022 contacts with the second mode locking limiting portion 6022, and the second mode locking connecting portion can slide to the lower side of the second mode locking limiting portion more conveniently through the action of the arc surface.
As shown in fig. 10, 12 and 13, a second color mold 611 is disposed on the other side of the second color mold base 61, the second secondary color mold core lower base 411 is disposed between the two second color molds 611, the second color mold core upper base 412 is disposed above the second color molds 611 and covers and connects the second color molds 611, and an injection space (not shown) is formed between the second color mold core upper base 412 and the second color mold core lower base 411 and the second color molds 611, so that, when the mold assembly is completed for the second time, the second color injection molding can be performed in the second injection space.
In the above structure, after the first color molded part is injection molded, the upper mold base 1 is fixed, the lower mold base 2 moves downward to open the mold, at this time, under the action of the first mold locking assembly and the second mold locking assembly, the first color mold device 5 and the second color mold device 6 move toward the outer sides of the first color mold core 31 and the second color mold core 32 while following the downward movement of the lower mold base 2, when the lower mold base 2 moves downward to a certain position, the first mold locking assembly 50 and the second mold locking assembly 60 open, the first color mold device 5 and the second color mold device 6 can be separated from the lower mold base 2, the lower mold base 2 can continue to move downward to a rotatable position to rotate, the positions of the first color mold core 31 and the second color mold core 41 are interchanged, after the interchange, the lower mold base 2 moves upward, the first mold locking assembly 50 and the second mold locking assembly 60 reconnect the first color mold device 5 and the second color mold device 6, when the lower die holder 2 is in movable contact with the upper die holder 1, second color injection molding can be started after die assembly is finished, the lower die holder 2 is continuously opened after the second color injection molding is finished, a workpiece which is finished with the second color injection molding can be taken out to finish one-time injection molding, and the first color mold device and the second color mold device are driven to move downwards under the action of the die locking assembly when the lower die holder moves downwards, so that the first color mold device and the second color mold device perform lateral core pulling under the condition that a die is opened, therefore, core pulling can be realized, the lower die holder is moved after core pulling is finished, and the lower die holder can smoothly rotate under the condition of no interference; when injection molding is carried out, the first color plastic flows to the first cavity through the first hot runner device 71, and in the conveying process, the first hot runner device 71 heats the first color plastic, continuously detects whether the first color plastic is in a molten state, and carries out balanced heating on the first color plastic, so that the first color plastic is always in a high-temperature molten state; second color plastics flow to the second die cavity through second hot runner device 72, and at the in-process of carrying, second hot runner device 72 heats second color plastics, and continuously detects whether second color plastics are in the melting device to carry out the equilibrium heating to second color plastics, make second color plastics be in high temperature molten state always, make plastics when moulding plastics remain the molten state all the time from this, thereby the mobility of plastics when guaranteeing to mould plastics makes it can not solidify the sclerosis in the runner.

Claims (10)

1. The utility model provides a be applied to injection molding device that double-colored mould was moulded plastics, includes double-colored mould injection mold, double-colored mould injection mold includes upper die base and die holder, the upper die base sets up the top at the die holder, its characterized in that: the hot runner mechanism is arranged above the upper die holder, the double-color die injection mechanism is arranged between the upper die holder and the lower die holder and comprises a first lateral core-pulling mechanism and a second lateral core-pulling mechanism, the number of the first lateral core-pulling mechanisms is two, the number of the second lateral core-pulling mechanisms is two, a first color mold core is arranged between the upper die holder and the lower die holder and between the two first lateral core-pulling mechanisms, a second color mold core is arranged between the upper die holder and the lower die holder and between the two second lateral core-pulling mechanisms, a first mold cavity is arranged in the first color mold core, a second mold cavity is arranged in the second color mold core, and the first lateral core-pulling mechanism and the second lateral core-pulling mechanism are arranged in central symmetry; the hot runner mechanism comprises a first hot runner device and a second hot runner device, a hot runner plate is arranged above the upper die base, the first hot runner device and the second hot runner device are arranged in the hot runner plate, a first hot runner hole and a second hot runner hole are formed in the upper die base, the first hot runner device penetrates through the first hot runner hole to communicate with the first die cavity, and the second hot runner device penetrates through the second hot runner hole to communicate with the second die cavity.
2. An injection molding apparatus as claimed in claim 1, wherein: the first hot runner device comprises a first splitter plate, a first main jet nozzle, a first heating assembly, a first heat nozzle and a first hot runner, the first splitter plate is arranged in a first accommodating cavity of the hot runner plate, the top end of the first splitter plate is provided with the first main jet nozzle, the bottom end of the first splitter plate is provided with the first heat nozzle, the first hot runner is arranged in the first splitter plate between the first main jet nozzle and the first heat nozzle, and the first heating assembly is arranged on the first splitter plate; the first hot nozzle is communicated with the first cavity;
the first heating assembly comprises a first heating pipe, a first main jet nozzle sensor, a first main jet nozzle heater, a first heat jet nozzle sensor and a first heat jet nozzle heater, wherein first heating pipeline grooves are formed in the top end and the bottom end of the first flow dividing plate respectively, the first heating pipeline grooves are arranged along the appearance of the first flow dividing plate, the first heating pipe is arranged in the first heating pipeline grooves, the first main jet nozzle sensor is connected with the first main jet nozzle, the first main jet nozzle sensor is provided with the first main jet nozzle heater, the first heat jet nozzle sensor is connected with the first heat jet nozzle, and the first heat jet nozzle sensor is provided with the first heat jet nozzle heater.
3. An injection molding apparatus as claimed in claim 1, wherein: the second hot runner device comprises a second splitter plate, a second main jet nozzle, a second splitter channel, a second heat nozzle and a second heating pipe, the second splitter plate is arranged in a second accommodating cavity of the heat flow channel plate, one end of the second splitter plate is provided with the second main jet nozzle, the second splitter channel is arranged in the second splitter plate and comprises a main splitter channel and a heat nozzle channel, the main splitter channel is connected with the second main jet nozzle, the other end of the second splitter plate is provided with the heat nozzle channel, the main splitter channel is also connected with the heat nozzle channel, the second heat nozzle is arranged below the other end of the second splitter plate and connected with two ends of the heat nozzle channel, the top end and the bottom end of the second splitter channel are respectively provided with the second heating pipe, and the second heating pipes are distributed along the outer contour shape of the second splitter plate; a second hot nozzle sensor is arranged on the second hot nozzle, a second hot nozzle heater is arranged on the second hot nozzle sensor, a heating ring is also arranged on the second main nozzle, and a second main nozzle sensor is arranged on the heating ring; the second hot nozzle is also communicated with the second cavity.
4. An injection molding apparatus as claimed in claim 1, wherein: the first lateral core pulling mechanism comprises a first color mold device, wherein a first color mold core is arranged at one end of a lower mold base, the first color mold devices are respectively arranged at two sides of the first color mold core, the first color mold device is connected with one end of an upper mold base, the first color mold core comprises a first color mold core lower seat and a first color mold core upper seat, the first color mold core lower seat is arranged on the lower mold base, the first color mold core upper seat is arranged above the first color mold core lower seat, a first injection through hole is formed in the first color mold core upper seat, a first cavity is arranged in the first color mold core upper seat, and a first hot nozzle is arranged in the first injection through hole and is fixedly connected with the first injection through hole; the second lateral core pulling mechanism comprises a second color mold device, a second color mold core is arranged at the other end of the lower mold base, the second color mold devices are respectively arranged at two sides of the second color mold core, the second color mold device is connected with the other end of the upper mold base, the second color mold core comprises a second color mold core lower seat and a second color mold core upper seat, the second color mold core lower seat is arranged on the lower mold base, a second color mold core upper seat is arranged above the second color mold core lower seat, a second injection molding through hole is arranged on the second color mold core upper seat, the second mold cavity is arranged in the second color mold core upper seat, and the second heat nozzle is arranged in the second injection molding through hole and is fixedly connected with the first injection molding through hole; the first color former device is provided with a first mold locking assembly, the first mold locking assembly is further connected with the lower die holder, the second color former device is provided with a second mold locking assembly, and the second mold locking assembly is further connected with the lower die holder.
5. An injection molding apparatus as claimed in claim 4, wherein: the first color mold device comprises a first color mold seat, a first color mold inclined guide block, a first color mold limiting block, a first color mold inclined guide post and a first color mold fixing block, the first color mold fixing block is fixedly connected to the upper mold seat, the first color mold fixing block is provided with the first color mold inclined guide post, the first color mold inclined guide post inclines from top to outside of the first color mold core, the first color mold seat is provided with a first color mold inclined through hole corresponding to the first color mold inclined guide post, the first color mold inclined guide post is connected in the first color mold inclined through hole in a sliding manner, one side of the first color mold seat is provided with a first color mold limiting groove which is inclined downwards and outwards from the top end of the first color mold seat to the bottom end of the first color mold seat, the first color mold limiting part is arranged at the upper end of the first color mold limiting groove on the first color mold seat, the first color mold limiting block is arranged in the first color mold limiting groove, and is connected to the upper mold seat through the first color mold limiting block, the two ends of the first color die holder are provided with first color die inclined guide grooves which extend downwards and outwards from the top end of the first color die holder to the bottom end of the first color die holder, the inclination angle of the first color die inclined guide grooves is the same as that of the first color die inclined guide columns, the first color die inclined guide blocks are arranged in the first color die inclined guide grooves, the first color die inclined guide blocks are connected with the upper die holder through first color die inclined guide block connecting columns, and first die locking assemblies are arranged below the first color die holder; the first color mold device is provided with two first color mold cores, and the first color mold cores are arranged between the first color mold devices.
6. An injection molding apparatus as claimed in claim 5, wherein: the first die locking assembly comprises a first die locking connecting block and a first die locking fixing block, the first die locking fixing block is fixedly connected to the lower die base, the first die locking connecting block is arranged on the first color die base, the first die locking fixing block comprises a first die locking fixing part and a first die locking limiting part, the first die locking fixing part is connected to the lower die base, the first die locking limiting part is arranged at the top end of the first die locking fixing part, the first die locking connecting block comprises a first die locking connecting fixing part and a first die locking connecting part, the first die locking connecting fixing part is arranged at the bottom end of the first color die base, the first die locking connecting part is arranged on the first die locking connecting fixing part, and the first die locking limiting part is connected with the first die locking connecting part in a pressing mode; the top of first mode locking spacing portion is equipped with the arcwall face that outwards arc extended the setting downwards from first mode locking spacing portion center, and the top of first mode locking connecting portion is equipped with the arcwall face that outwards arc extended the setting downwards from first mode locking connecting portion center.
7. An injection molding apparatus as claimed in claim 5, wherein: the other side of the first color mold base is provided with a first color mold, the first color mold core lower seat is arranged between the two first color molds, the first color mold core upper seat is arranged above the first color molds and is connected with the first color molds in a covering manner, and an injection molding space is formed between the first color mold core upper seat, the first color mold core lower seat and the first color molds.
8. An injection molding apparatus as claimed in claim 4, wherein: the second color mold device comprises a second color mold base, a second color mold inclined guide block, a second color mold limiting block, a second color mold inclined guide post and a second color mold fixing block, the second color mold fixing block is fixedly connected to the upper mold base, the second color mold inclined guide post is arranged on the second color mold fixing block and inclines from top to outside of the second color mold core, a second color mold inclined through hole corresponding to the second color mold inclined guide post is arranged on the second color mold base, the second color mold inclined guide post is connected in the second color mold inclined through hole in a sliding manner, a second color mold limiting groove which extends downwards and outwards from the top end of the second color mold base to the bottom end of the second color mold base is arranged on one side of the second color mold base, a second limiting part is arranged at the upper end of the second color mold limiting groove on the second color mold base, a second color mold limiting block is arranged in the second color mold limiting groove, and the second color mold limiting block is connected to the upper mold base through the second color mold limiting block, two ends of the second color die holder are provided with second color die inclined guide grooves which extend downwards and outwards from the top end of the second color die holder to the bottom end of the second color die holder, the inclination angle of each second color die inclined guide groove is the same as that of each second color die inclined guide column, the second color die inclined guide blocks are arranged in the second color die inclined guide grooves, the second color die inclined guide blocks are connected with the upper die holder through second color die inclined guide block connecting columns, and second die locking assemblies are arranged below the second color die holder; the number of the second color mold devices is two, and the second color mold core is arranged between the second color mold devices.
9. An injection molding apparatus as claimed in claim 8, wherein: the second mold locking assembly comprises a second mold locking connecting block and a second mold locking fixing block, the second mold locking fixing block is fixedly connected to the lower mold base, the second mold locking connecting block is arranged on the second mold base, the second mold locking fixing block comprises a second mold locking fixing part and a second mold locking limiting part, the second mold locking fixing part is connected to the lower mold base, the second mold locking limiting part is arranged at the top end of the second mold locking fixing part, the second mold locking connecting block comprises a second mold locking connecting fixing part and a second mold locking connecting part, the second mold locking connecting fixing part is arranged at the bottom end of the second mold base, a second mold locking connecting part is arranged on the second mold locking connecting fixing part, and the second mold locking limiting part is connected with the second mold locking connecting part in a pressing mode; the top of the spacing portion of second mode locking is equipped with the arcwall face that outwards arc extension set up in the spacing portion center of second mode locking, and the top of second mode locking connecting portion is equipped with the arcwall face that outwards arc extension set up in the second mode locking connecting portion center.
10. An injection molding apparatus as claimed in claim 8, wherein: and the second color mold is arranged on the other side of the second color mold base, the second secondary color mold core lower seat is arranged between the two second color molds, the second color mold core upper seat is arranged above the second color molds and is connected with the second color molds in a covering manner, and an injection molding space is formed between the second color mold core upper seat and the second color mold core lower seat as well as between the second color molds.
CN202110989590.5A 2021-08-26 2021-08-26 Injection molding device applied to double-color mold injection molding Pending CN113500745A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110989590.5A CN113500745A (en) 2021-08-26 2021-08-26 Injection molding device applied to double-color mold injection molding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110989590.5A CN113500745A (en) 2021-08-26 2021-08-26 Injection molding device applied to double-color mold injection molding

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Application Number Title Priority Date Filing Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210162640A1 (en) * 2019-07-23 2021-06-03 Standard Profil Ege Otomotiv Sanayi Ve Ticaret Anonim Sirketi Mold structure for injection end welding in sealing profiles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210162640A1 (en) * 2019-07-23 2021-06-03 Standard Profil Ege Otomotiv Sanayi Ve Ticaret Anonim Sirketi Mold structure for injection end welding in sealing profiles
US11904517B2 (en) * 2019-07-23 2024-02-20 Standard Profil Ege Otomotiv Sanayi Ve Ticaret Anonim Sirketi Mold structure for injection end welding in sealing profiles

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