WO2018232590A1 - 一种管状产品的一次注塑成型模具及其成型方法 - Google Patents

一种管状产品的一次注塑成型模具及其成型方法 Download PDF

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Publication number
WO2018232590A1
WO2018232590A1 PCT/CN2017/089186 CN2017089186W WO2018232590A1 WO 2018232590 A1 WO2018232590 A1 WO 2018232590A1 CN 2017089186 W CN2017089186 W CN 2017089186W WO 2018232590 A1 WO2018232590 A1 WO 2018232590A1
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WO
WIPO (PCT)
Prior art keywords
slider
cylinder
cavity
injection molding
plate
Prior art date
Application number
PCT/CN2017/089186
Other languages
English (en)
French (fr)
Inventor
易成芳
Original Assignee
深圳市皓星伟业科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市皓星伟业科技有限公司 filed Critical 深圳市皓星伟业科技有限公司
Priority to US15/567,591 priority Critical patent/US20180361640A1/en
Priority to PCT/CN2017/089186 priority patent/WO2018232590A1/zh
Publication of WO2018232590A1 publication Critical patent/WO2018232590A1/zh

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Classifications

    • 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
    • B29C45/261—Moulds having tubular mould cavities
    • 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
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/1742—Mounting of moulds; Mould supports
    • B29C45/1744—Mould support platens
    • 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
    • B29C45/2701—Details not specific to hot or cold runner channels
    • B29C45/2708—Gates
    • 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
    • B29C45/36—Moulds having means for locating or centering cores
    • 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
    • B29C2045/2683—Plurality of independent mould cavities in a single mould
    • B29C2045/2689—Plurality of independent mould cavities in a single mould separate independent mould halves mounted on one plate
    • 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
    • B29C45/2701—Details not specific to hot or cold runner channels
    • B29C45/2708—Gates
    • B29C2045/2709—Gates with a plurality of mould cavity inlets in close proximity
    • 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

Definitions

  • the invention relates to an injection molding mold, in particular to a single injection molding mold for a tubular product and a molding method thereof.
  • FIG. 1a is a schematic structural view of a tubular product
  • FIG. 1b is a cross-sectional view along line MM of FIG. 1a, which shows that the tubular product in the prior art is divided into two parts, A and B, First, the product A is produced, and then the product A is placed in a mold, and the rubber is processed to produce the product B, which cannot be molded once.
  • the product B is injected, the product A is deformed by the influence of the injection pressure, resulting in internal damage of the product, and the product cannot be used, resulting in a low product yield. Due to the injection of the product B, it is necessary to manually place the product A into the mold, which may cause the machine to be easily crushed to a human body and reduce the safety of the production process.
  • the main object of the present invention is to provide a one-shot injection molding die and a molding method thereof for a tubular product having a high product yield and a safe production process.
  • the present invention provides a one-shot injection molding die for a tubular product, which is formed by injection molding in two parts, which comprises a pattern plate, a nozzle plate, a front plate, a rear plate, which are arranged in a stacked structure.
  • a thimble panel, a ejector bottom plate, a stencil bottom plate, the ejector plate and the ejector bottom plate are fixed together, the apex panel and the thimble bottom plate are respectively provided with square irons on both sides thereof, and the top of the mold is provided with a first oil cylinder and a first a second oil cylinder, a third oil cylinder is disposed on an outer side of the mold base plate, and a fourth oil cylinder is disposed on an adjacent side of the front template and the rear template; and the front template and the rear template are respectively provided for injection molding a first cavity and a second cavity of the two parts of the product, wherein the first cavity and the second cavity are centrally symmetric, and the front template is located in the middle of the first cavity and one of the second cavity Side punishment No first gate and second gate are provided, the first gate and the second gate are respectively used to cast two parts of the product; the pattern bottom plate fixes the rear template, the thimble panel and the thimble bottom plate On the
  • a middle of the code pattern panel is provided with a positioning ring for positioning the mold on the injection molding machine to center the injection nozzle of the injection molding machine with the injection port of the mold.
  • the front template is provided with a front core
  • the rear template is provided with a rear core corresponding to the front core.
  • a plurality of thimbles are fixedly disposed on the ejector panel at a position opposite to the second cavity, and a return spring is disposed at upper and lower ends between the ejector panel and the rear stencil, and the ejector pin is opened when the ejector is opened The injection molded product is ejected and the return spring resets the thimble.
  • a position of the rear plate opposite to the first cavity and the second cavity is respectively provided with a pin pressing plate, and the pin pressing plate is fixedly provided with a plurality of rows of pins.
  • a flow path switch is disposed on one side of the injection port on the front plate, and the flow path switch is perpendicular to the front core.
  • the first gate and the second gate are respectively connected to the first sprue bushing and the second sprue bushing, and one ends of the first sprue bushing and the second sprue bushing are respectively connected with different crochet hooks.
  • the crochet pin is fixedly disposed on the pressure plate. After the one injection molding is completed, the crochet hooks the corresponding first gate and the second gate respectively from the first cavity and the second cavity.
  • a first slider, a second slider, a third slider, a fourth slider, and a fifth slider are respectively disposed between the front template and the rear template, and the intermediate position of the rear core is vertical
  • the outer extension is provided with a push rod shaft.
  • the outer side of the push rod shaft is respectively provided with a gear, a first guide sleeve and a second guide sleeve, and one side of the gear is provided with a rack, and the gear is meshed with the rack through the gear and the rack Driving the rotating shaft of the push rod to rotate the rear mold core with the rotating shaft of the push rod, and the rear mold core is formed with the front mold core after being rotated by 180° with the rotating shaft of the push rod The first cavity and the second cavity.
  • the first slider, the third slider, and the fourth slider are respectively disposed on three sides of the rear core adjacent to the first cavity, the second slider and the first Five sliders are respectively set in the same Two sides of the rear core adjacent to the two cavities.
  • a first guide post and a second guide post are respectively disposed adjacent to the third slider and the fourth slider; and the second slider and the fifth slider are respectively disposed a first oblique guide post slot and a second oblique guide post slot are respectively disposed, and the first oblique guide post slot and the second oblique guide post slot are obliquely extended to the front template respectively provided with a first oblique corresponding thereto
  • the guide post and the second oblique guide post, the first oblique guide post and the second oblique guide post are guided to drive the second slider and the fifth slider to slide outwardly or inwardly to gather together.
  • a first cylinder rod is connected between the first cylinder and the first sliding block, and two cylinder fixing plates are disposed between the first cylinder and the first cylinder rod, adjacent to the first cylinder a switch is disposed on one side of the cylinder fixing plate; a second cylinder rod is connected between the second cylinder and the rear plate, and a cylinder fixing plate is disposed between the second cylinder and the second cylinder rod; a third cylinder rod is connected between the third cylinder and the push rod shaft; a fourth cylinder rod is connected between the fourth cylinder and the fourth block, and two of the fourth cylinder and the fourth cylinder rod are disposed between the fourth cylinder and the fourth cylinder One of the cylinder fixing plates; one side of the first slider and one side of the second cylinder rod are respectively provided with a switch fixing plate.
  • the invention also provides a one-shot injection molding method for a tubular product, wherein the product is divided into a body one and a body two injection molding, including the following steps:
  • Step 1 clamping the mold, the first slider, the second slider, the third slider, the fourth slider, and the fifth slider are all in the core state, and the first cavity and the second cavity are empty. Closing the flow path switch, only allowing the first gate to enter the glue, and forming a part of the body of the product in the first cavity;
  • Step 2 manually open the flow path switch
  • Step 3 opening the mold, the first oil cylinder, the second oil cylinder, the third oil cylinder, the fourth oil cylinder, the first inclined guide pillar, and the second oblique guide pillar drive the first slider, the second slider, and the third sliding
  • the block, the fourth slider and the fifth slider are outwardly slid and expanded, and the rear core is pushed out of the mold frame through the push rod rotating shaft, and then the rear mold core is rotated along the push rod rotating shaft by the transmission of the rack and the gear 180°, and then pulling the rear core back to the mold frame through the push rod rotating shaft, so that the product body formed by the first gate in the first step is rotated to rotate with the rear mold core a second cavity on the other side;
  • Step 4 clamping the first oil cylinder, the second oil cylinder, the third oil cylinder, the fourth oil cylinder, the first inclined guide pillar, and the second oblique guide pillar to drive the first slider, the second slider, and the first Three sliders, fourth slider, first
  • the five sliders are slid inwardly, the first gate and the second gate are simultaneously fed, and a part of the body of the first gate molding product is formed in the first cavity, and the second gate is formed in the second cavity.
  • the body part of the product
  • Step 5 opening the mold and ejecting the complete product after molding in the second cavity
  • Step 6 Repeat steps 3 to 5, and cycle, continuous production.
  • the one-shot injection molding die of the tubular product of the invention and the molding method thereof can divide the product into two parts and one-time injection molding, can avoid deformation caused by the influence of the injection pressure, cause internal damage of the product, improve the product yield rate, and the production process Safety.
  • Figure 1a is a schematic view showing the structure of a tubular product
  • Figure 1b is a cross-sectional view taken along line M-M of Figure 1a, illustrating that the tubular product of the prior art is divided into two parts, A and B;
  • Figure 2 is a cross-sectional view taken along line M-M of Figure 1a, showing the tubular product of the present invention divided into two parts, C and D;
  • Figure 3 is a side cross-sectional view showing a one-shot injection molding die of the tubular product of the present invention
  • Figure 4 is a top cross-sectional view of a single injection molding die of the tubular product of the present invention.
  • Figure 5 is a top plan cross-sectional view of a single injection molding die of the tubular product of the present invention.
  • Figure 6 is a top plan cross-sectional view of a single injection molding die of a tubular product of the present invention.
  • the injection molding mold of the tubular product of the present invention divides the product into two.
  • Two-part one-shot injection molding namely, a body 1 (D in FIG. 2) and a body 2 (C in FIG. 2)
  • the molding die includes a code die panel 1 in a stacked structure, a nozzle plate 2, a front plate 3, and a rear plate.
  • a template 4 a thimble panel 5, a ejector bottom plate 6, and a stencil bottom plate 7, wherein the ejector plate 5 and the ejector bottom plate 6 are fixed together, and the ferrule panel 5 and the thimble bottom plate 6 are respectively provided with square irons 8 on both sides thereof, the mold A first cylinder 11 and a second cylinder 12 are disposed at the top, and a third cylinder 13 is disposed on an outer side surface of the pattern bottom plate 7, and a fourth cylinder 14 is disposed on a side adjacent to the front die plate 3 and the rear die plate 4.
  • the pattern base plate 7 is for fixing the rear plate 4, the ejector plate 5, and the thimble bottom plate 6 to the moving template of the injection molding machine.
  • a locating ring 10 is disposed in the middle of the stencil panel 1 for positioning the mold on the injection molding machine, so that the nozzle of the injection molding machine is centered with the injection port 100 of the mold runner system.
  • the front die plate 3 is provided with a front core 30, and the rear die plate 4 is provided with a rear core 40 corresponding to the front core 30.
  • a first cavity 31 and a second cavity 32 that are symmetric in center are formed between the front core 30 and the rear core 40 .
  • a flow path switch 33 is disposed on the front template 3 on the side of the injection port 100 perpendicular to the front core 30, and the flow path switch 33 is used to control the feeding state of the flow path system.
  • a first gate 34 and a second gate 35 are respectively disposed on the front template 3 at the middle of the first cavity 31 and at one side of the second cavity 32, and the first gate 34 is used for the first gate 34.
  • Injection molded product D, second gate 35 for injection molded product C, first gate 34 and second gate 35 are connected to first sprue bushing 340 and second sprue bushing 350, respectively, first sprue bushing 340 and One end of the two sprue bushings 350 is respectively connected to the crochet 345, and the crochet 345 is fixedly disposed on the pressing plate 346.
  • the first gate 34 and the second gate 35 are separated from the first cavity 31 and the second cavity 32 by the crochet 345, respectively, for the next injection molding.
  • the pusher shaft 46 is disposed on the outer side of the rear mold core 40, and the outer side of the push rod shaft 46 is respectively provided with a gear 47, a first guide sleeve 461 and a second guide sleeve 462.
  • the gear 47 is provided with a rack 48 on one side thereof. The gear 47 is meshed with the rack 48.
  • the transmission of the rack 47 and the rack 48 drives the push rod shaft 46 to rotate, so that the rear core 40 can rotate with the push rod shaft 46.
  • the rear core 40 is pushed.
  • the lever shaft 46 is rotated by 180°, the first cavity 31 and the second cavity 32 are formed completely identical to the front core 30 before the rotation. Thereby, the injection molded product can be continuously cycled.
  • a first guide post 430 and a second guide post 440 are disposed adjacent to the third slider 43 and the fourth slider 44, respectively.
  • a first oblique guide post slot 420 and a second oblique guide post slot 450 are respectively disposed in the second slider 42 and the fifth slider 45, and the first oblique guide post slot 420 and the second oblique guide post slot 450 are obliquely extended.
  • a first oblique guide post 421 and a second oblique guide post 451 corresponding to the front template 3 are respectively disposed.
  • the first inclined guide pillar 421 and the second inclined guide pillar 451 are guided to drive the second slider 42 and the fifth slider 45 to slide outwardly or to slide inwardly.
  • a first cylinder rod 110 is connected between the first cylinder 11 and the first sliding block 41.
  • Two cylinder fixing plates 111 are disposed between the first cylinder 11 and the first cylinder rod 110, and the cylinder adjacent to the first cylinder 11 is disposed.
  • a switch 112 is provided on one side of the fixed plate 111.
  • a second cylinder rod 120 is connected between the second cylinder 12 and the rear plate 4, and a cylinder fixing plate 111 is disposed between the second cylinder 12 and the second cylinder rod 120.
  • a third cylinder rod 130 is connected between the third cylinder 13 and the push rod shaft 46.
  • a fourth cylinder rod 140 is connected between the fourth cylinder 14 and the fourth slider 44, and two cylinder fixing plates 111 are disposed between the fourth cylinder 14 and the fourth cylinder rod 140.
  • a switch fixing plate 123 is disposed on one side of the first slider 41 side and the second cylinder rod 120, respectively.
  • a plurality of ejector pins 50 are fixedly disposed on the ejector panel 5 at a position opposite to the second cavity 32.
  • the upper and lower ends of the ejector panel 5 and the rear template 4 are respectively provided with a return spring 51.
  • the ejector pin 50 is used for opening the mold.
  • the injection molded product is ejected, and a return spring 51 is used to reset the ejector pin 50.
  • a position of the rear die plate 4 opposite to the first cavity 31 and the second cavity 32 is respectively provided with a pin press plate 400, and the insert pin press plate 400 is fixedly provided with a plurality of rows of pins 401.
  • the insert 401 cooperates with the thimble 50 to eject the molded product.
  • the embodiment of the invention further provides a one-shot injection molding method for a tubular product, comprising the following steps:
  • Step 1 Closing the mold, the first slider 41, the second slider 42, the third slider 43, the fourth slider 44, and the fifth slider 45 are all in a core state, and the first cavity 31 of the mold at this time And the second cavity 32 is empty, the flow path switch 33 is closed, only the first gate 34 is glued, and the product D portion is formed in the first cavity 31;
  • Step two manually open the flow path switch 33;
  • Step 3 Opening the mold, the first cylinder 11, the second cylinder 12, the third cylinder 13, the fourth cylinder 14, the first inclined guide 421, and the second oblique guide 451 drive the first slider 41, the second slide
  • the block 42, the third slider 43, the fourth slider 44, and the fifth slider 45 are outwardly slid and expanded, and the rear core 40 is pushed out of the mold frame by the push rod rotating shaft 46, and then transmitted through the rack 48 and the gear 47.
  • the rear core 40 is rotated 180° along the push rod rotating shaft 46, and then the rear core 40 is pulled back to the mold frame through the push rod rotating shaft 46, so that the product D formed by the first gate 34 in the first step is followed by the rear core. Rotation of 40 to rotate into the second cavity 32 on the other side;
  • Step 4 Clamping, the first cylinder 11, the second cylinder 12, the third cylinder 13, the fourth cylinder 14, the first inclined guide 421, and the second oblique guide 451 drive the first slider 41, the second slide
  • the block 42, the third slider 43, the fourth slider 44, and the fifth slider 45 are slidably gathered inward, and the first gate 34 and the second gate 35 are simultaneously fed, and the first cavity 31 is firstly poured.
  • the port 34 continues to form the product D portion, and the second gate 35 in the second cavity 32 forms the product C portion;
  • Step 5 opening the mold and ejecting the complete product after molding in the second cavity 32;
  • Step 6 Repeat steps 3 to 5, and cycle, continuous production.
  • the one-shot injection molding mold of the tubular product of the present invention can perform one injection molding on the pipe product, such as a multi-valve pipe fitting such as a faucet.
  • the one-shot injection molding die of the tubular product of the invention and the molding method thereof can divide the product into two parts and one-time injection molding, which can be deformed by avoiding the influence of the injection pressure, resulting in internal damage of the product and improving the product yield. And the production process is safe.

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

Abstract

一种管状产品的一次注塑成型模具，将产品分两部分一次注塑成型，其包括呈层叠结构依次排布的码模面板（1）、水口板（2）、前模板（3）、后模板（4）、顶针面板（5）、顶针底板（6）、码模底板（7），顶针面板（5）和顶针底板（6）固定在一起，顶针面板（5）和顶针底板（6）的两侧边分别设置有方铁（8），模具的顶部设置有第一油缸（11）和第二油缸（12），码模底板（7）的外侧面设置有第三油缸（13），前模板（3）和后模板（4）相邻的一个侧面设置有第四油缸（14）。以及一种管状产品的一次注塑成型方法，包括步骤一、步骤二、步骤三、步骤四、步骤五、步骤六。本管状产品的一次注塑成型模具及其成型方法，可以实现提高产品成品率，且生产过程安全。

Description

一种管状产品的一次注塑成型模具及其成型方法 技术领域
本发明有关一种注塑成型模具，特别是一种管状产品的一次注塑成型模具及其成型方法。
背景技术
目前现有的技术方案，如图1a为一种管状产品的结构示意图，图1b为沿图1a中M-M线的剖面图，图示为现有技术中管状产品分为A、B两部分注塑，先将产品A制作出来，然后将产品A放置在模具中，进行包胶处理，制作产品B，无法实现一次成型。根据现有的技术方案，在注塑产品B的时候，产品A会受注塑压力的影响而变形，导致产品内部损坏，产品无法使用，造成产品成品率不高。由于注塑产品B时，需要人工将产品A放置到模具中，会导致机器容易压到人造成重大世故，降低产品生产过程的安全性。
发明内容
有鉴于此，本发明的主要目的在于提供一种产品成品率高、且生产过程安全的管状产品的一次注塑成型模具及其成型方法。
为达到上述目的，本发明提供了一种管状产品的一次注塑成型模具，将产品分两部分一次注塑成型，其包括呈层叠结构依次排布的码模面板、水口板、前模板、后模板、顶针面板、顶针底板、码模底板，所述顶针面板和顶针底板固定在一起，所述顶针面板和顶针底板的两侧边分别设置有方铁，所述模具的顶部设置有第一油缸和第二油缸，所述码模底板的外侧面设置有第三油缸，所述前模板和后模板相邻的一个侧面设置有第四油缸；所述前模板与后模板之间设有分别用于注塑产品的两部分的第一型腔与第二型腔，且第一型腔和第二型腔呈中心对称，所述前模板上位于所述第一型腔的中间和第二型腔的一侧处分 别设置有第一浇口和第二浇口，该第一浇口和第二浇口分别用于浇注产品的两部分；所述码模底板将所述后模板、顶针面板、顶针底板固定在注塑机的移动模板上。
优选地，所述码模面板中部设置有定位圈，所述定位圈用于将模具定位安装在注塑机上，使注塑机喷嘴与模具的注射口对中。
优选地，所述前模板上设有前模芯，所述后模板上设有与所述前模芯对应的后模芯，合模后，所述前模芯与后模芯之间形成所述第一型腔和第二型腔。
优选地，所述顶针面板上与所述第二型腔相对的位置固定设置有一排多个顶针，所述顶针面板与后模板之间上下两端均设置有复位弹簧，开模时所述顶针将注塑好的产品顶出，所述复位弹簧使所述顶针复位。
优选地，所述后模板上与所述第一型腔、第二型腔相对的位置分别设置有镶针压板，所述镶针压板上固定设置有一排多个镶针。
优选地，所述前模板上在所述注射口的一侧设置有流道开关，所述流道开关垂直于所述前模芯。
优选地，所述第一浇口和第二浇口分别连接第一浇口套和第二浇口套，所述第一浇口套和第二浇口套的一端分别与不同钩针连接，所述钩针固定设置在压板上，完成一次注塑后，所述钩针使其对应的所述第一浇口和第二浇口分别脱离所述第一型腔和第二型腔。
优选地，所述前模板与后模板之间，分别设置有第一滑块、第二滑块、第三滑块、第四滑块、第五滑块，所述后模芯中间位置垂直向外延伸设置有推杆转轴。
优选地，所述推杆转轴外侧分别设置有齿轮、第一导向套、第二导向套，所述齿轮一侧设置有齿条，所述齿轮与齿条啮合连接，通过所述齿轮与齿条的传动带动所述推杆转轴转动，使所述后模芯随推杆转轴旋转，所述后模芯随所述推杆转轴旋转180°后，仍与所述前模芯之间形成所述第一型腔和第二型腔。
优选地，所述第一滑块、第三滑块、第四滑块分别设置在与所述第一型腔相邻的所述后模芯的三个侧面，所述第二滑块和第五滑块分别设置在与所述第 二型腔相邻的所述后模芯的两个侧面。
优选地，所述前模板与后模板之间，靠近所述第三滑块和第四滑块分别设置有第一导柱和第二导柱；所述第二滑块和第五滑块内分别设置有第一斜导柱槽和第二斜导柱槽，所述第一斜导柱槽、第二斜导柱槽倾斜延伸至所述前模板上分别设置有与之对应的第一斜导柱、第二斜导柱，所述第一斜导柱和第二斜导柱导向驱动使所述第二滑块和第五滑块向外滑行扩张或向内滑行聚拢。
优选地，所述第一油缸与第一滑块之间连接有第一油缸拉杆，所述第一油缸与第一油缸拉杆之间设置有两个油缸固定板，临近所述第一油缸的所述油缸固定板一侧设置有开关；所述第二油缸与后模板之间连接有第二油缸拉杆，所述第二油缸与第二油缸拉杆之间设置有一个所述油缸固定板；所述第三油缸与推杆转轴之间连接有第三油缸拉杆；所述第四油缸与第四滑块之间连接有第四油缸拉杆，所述第四油缸与第四油缸拉杆之间设置有两个所述油缸固定板；所述第一滑块一侧与所述第二油缸拉杆的一侧分别设置有一个开关固定板。
本发明还提供了一种管状产品的一次注塑成型方法，该方法中将产品分为本体一和本体二一次注塑完成，包括如下步骤：
步骤一：合模，第一滑块、第二滑块、第三滑块、第四滑块、第五滑块均处于进芯状态，第一型腔和第二型腔内都是空的，关闭流道开关，只让第一浇口进胶，在第一型腔中成型出产品的本体一部分；
步骤二：手动打开所述流道开关；
步骤三：开模，第一油缸、第二油缸、第三油缸、第四油缸、第一斜导柱、和第二斜导柱驱动所述第一滑块、第二滑块、第三滑块、第四滑块、第五滑块向外滑行扩张，通过推杆转轴将后模芯顶出模框，再通过齿条和齿轮的传动将所述后模芯沿所述推杆转轴旋转180°，然后再通过所述推杆转轴将所述后模芯拉回模框，使步骤一中所述第一浇口成型的产品本体一，随着所述后模芯的旋转而旋转到另一侧的第二型腔；
步骤四：合模，所述第一油缸、第二油缸、第三油缸、第四油缸、第一斜导柱、和第二斜导柱驱动所述第一滑块、第二滑块、第三滑块、第四滑块、第 五滑块向内滑行聚拢，所述第一浇口、第二浇口同时进胶，在第一型腔中第一浇口成型产品的本体一部分，在第二型腔中第二浇口成型产品的本体二部分；
步骤五：开模，顶出所述第二型腔中成型后的完整产品；
步骤六：重复步骤三至步骤五动作，如此循环，连续生产。
本发明的管状产品的一次注塑成型模具及其成型方法，可将产品分为两部分并一次注塑成型，可避免注塑压力的影响而变形，导致产品内部损坏，提高了产品成品率，且生产过程安全。
附图说明
图1a为一种管状产品的结构示意图；
图1b为沿图1a中M-M线的剖面图，图示为现有技术中管状产品分为A、B两部分注塑；
图2为沿图1a中M-M线的剖面图，图示为本发明中管状产品分为C、D两部分注塑；
图3为本发明的管状产品的一次注塑成型模具的侧面剖视图；
图4为本发明的管状产品的一次注塑成型模具的俯视剖视图；
图5为本发明的管状产品的一次注塑成型模具的俯视局部剖视图；
图6为本发明的管状产品的一次注塑成型模具的俯视局部剖视图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述。
下面详细描述本发明的实施例，实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
如图2至图6所示，本发明的管状产品的一次注塑成型模具，将产品分为 两部分一次注塑成型，即本体一(图2中D)与本体二(图2中C)，该成型模具包括呈层叠结构依次排布的码模面板1、水口板2、前模板3、后模板4、顶针面板5、顶针底板6、码模底板7，其中顶针面板5和顶针底板6固定在一起，顶针面板5和顶针底板6的两侧边分别设置有方铁8，所述模具的顶部设置有第一油缸11和第二油缸12，码模底板7的外侧面设置有第三油缸13，前模板3和后模板4相邻的一个侧面设置有第四油缸14。码模底板7用于使后模板4、顶针面板5、顶针底板6固定在注塑机的移动模板上。
如图4所示，码模面板1中部设置有定位圈10，用于模具定位安装在注塑机上，使注塑机喷嘴与模具流道系统的注射口100对中。
如图3所示，前模板3上设有前模芯30，后模板4上设有与前模芯30对应的后模芯40，合模后，前模芯30与后模芯40之间形成中心对称的第一型腔31和第二型腔32。前模板3上在注射口100的一侧垂直于前模芯30设置有流道开关33，流道开关33用于控制流道系统的进胶状态。
如图3所示，前模板3上位于第一型腔31的中间和第二型腔32的一侧处分别设置有第一浇口34和第二浇口35，第一浇口34用于注塑产品D，第二浇口35用于注塑产品C，第一浇口34和第二浇口35分别连接第一浇口套340和第二浇口套350，第一浇口套340和第二浇口套350的一端分别与钩针345连接，钩针345固定设置在压板346上。完成一次注塑后，通过钩针345使第一浇口34和第二浇口35分别脱离第一型腔31和第二型腔32，以便下一次注塑。
所述前模板3与后模板4之间，与第一型腔31相邻的后模芯40的三个侧面分别设置有第一滑块41、第三滑块43、第四滑块44，与第二型腔相邻的后模芯40的两个侧面分别设置有第二滑块42和第五滑块45。后模芯40中间位置垂直向外延伸设置有推杆转轴46，推杆转轴46外侧分别设置有齿轮47、第一导向套461、第二导向套462，齿轮47一侧设置有齿条48，齿轮47与齿条48啮合连接，通过齿轮47与齿条48的传动带动推杆转轴46转动，使后模芯40能随推杆转轴46旋转，在注塑过程中，当后模芯40随推杆转轴46旋转180°后，仍与前模芯30之间形成与旋转前完全相同的第一型腔31和第二型腔32， 从而可以连续循环注塑成型产品。
前模板3与后模板4之间，靠近第三滑块43和第四滑块44分别设置有第一导柱430和第二导柱440。
所述第二滑块42和第五滑块45内分别设置有第一斜导柱槽420和第二斜导柱槽450，第一斜导柱槽420和第二斜导柱槽450倾斜延伸至前模板3上分别设置有与之对应的第一斜导柱421和第二斜导柱451。在开模和闭模切换过程中，第一斜导柱421和第二斜导柱451导向驱动第二滑块42和第五滑块45向外滑行扩张或向内滑行聚拢。
所述第一油缸11与第一滑块41之间连接有第一油缸拉杆110，第一油缸11与第一油缸拉杆110之间设置有两个油缸固定板111，临近第一油缸11的油缸固定板111一侧设置有开关112。第二油缸12与后模板4之间连接有第二油缸拉杆120，第二油缸12与第二油缸拉杆120之间设置有一个油缸固定板111。第三油缸13与推杆转轴46之间连接有第三油缸拉杆130。第四油缸14与第四滑块44之间连接有第四油缸拉杆140，第四油缸14与第四油缸拉杆140之间设置有两个油缸固定板111。第一滑块41一侧与第二油缸拉杆120的一侧分别设置有一个开关固定板123。
所述顶针面板5上与第二型腔32相对的位置固定设置有一排多个顶针50，顶针面板5与后模板4之间上下两端均设置有复位弹簧51，开模时顶针50用于将注塑好的产品顶出，复位弹簧51用于使顶针50复位。
所述后模板4上与第一型腔31和第二型腔32相对的位置分别设置有镶针压板400，镶针压板400上固定设置有一排多个镶针401。镶针401配合顶针50将注塑好的产品顶出。
本发明实施例中还提供一种管状产品的一次注塑成型方法，包括如下步骤：
步骤一：合模，第一滑块41、第二滑块42、第三滑块43、第四滑块44、第五滑块45均处于进芯状态，此时模具的第一型腔31和第二型腔32内都是空的，关闭流道开关33，只让第一浇口34进胶，在第一型腔31中成型出产品D部分；
步骤二：手动打开流道开关33；
步骤三：开模，第一油缸11、第二油缸12、第三油缸13、第四油缸14、第一斜导柱421、和第二斜导柱451驱动第一滑块41、第二滑块42、第三滑块43、第四滑块44、第五滑块45向外滑行扩张，通过推杆转轴46将后模芯40顶出模框，再通过齿条48和齿轮47的传动将后模芯40沿推杆转轴46旋转180°，然后再通过推杆转轴46将后模芯40拉回模框，使步骤一中第一浇口34成型的产品D，随着后模芯40的旋转而旋转到另一侧的第二型腔32中；
步骤四：合模，第一油缸11、第二油缸12、第三油缸13、第四油缸14、第一斜导柱421、和第二斜导柱451驱动第一滑块41、第二滑块42、第三滑块43、第四滑块44、第五滑块45向内滑行聚拢，第一浇口34、第二浇口35同时进胶，在第一型腔31中第一浇口34继续成型产品D部分，在第二型腔32中第二浇口35成型产品C部分；
步骤五：开模，顶出第二型腔32中成型后的完整产品；
步骤六：重复步骤三至步骤五动作，如此循环，连续生产。
本发明的管状产品的一次注塑成型模具可对管件产品进行一次注塑，如水龙头等多阀门管件。
由此可见，本发明的管状产品的一次注塑成型模具及其成型方法，可将产品分为两部分并一次注塑成型，可避免注塑压力的影响而变形，导致产品内部损坏，提高了产品成品率，且生产过程安全。
以上所述，仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。

Claims (13)

  1. 一种管状产品的一次注塑成型模具，将产品分两部分一次注塑成型，其特征在于，其包括呈层叠结构依次排布的码模面板、水口板、前模板、后模板、顶针面板、顶针底板、码模底板，所述顶针面板和顶针底板固定在一起，所述顶针面板和顶针底板的两侧边分别设置有方铁，所述模具的顶部设置有第一油缸和第二油缸，所述码模底板的外侧面设置有第三油缸，所述前模板和后模板相邻的一个侧面设置有第四油缸；所述前模板与后模板之间设有分别用于注塑产品的两部分的第一型腔与第二型腔，且第一型腔和第二型腔呈中心对称，所述前模板上位于所述第一型腔的中间和第二型腔的一侧处分别设置有第一浇口和第二浇口，该第一浇口和第二浇口分别用于浇注产品的两部分；所述码模底板将所述后模板、顶针面板、顶针底板固定在注塑机的移动模板上。
  2. 如权利要求1所述的管状产品的一次注塑成型模具，其特征在于，所述码模面板中部设置有定位圈，所述定位圈用于将模具定位安装在注塑机上，使注塑机喷嘴与模具的注射口对中。
  3. 如权利要求1所述的管状产品的一次注塑成型模具，其特征在于，所述前模板上设有前模芯，所述后模板上设有与所述前模芯对应的后模芯，合模后，所述前模芯与后模芯之间形成所述第一型腔和第二型腔。
  4. 如权利要求3所述的管状产品的一次注塑成型模具，其特征在于，所述顶针面板上与所述第二型腔相对的位置固定设置有一排多个顶针，所述顶针面板与后模板之间上下两端均设置有复位弹簧，开模时所述顶针将注塑好的产品顶出，所述复位弹簧使所述顶针复位。
  5. 如权利要求3所述的管状产品的一次注塑成型模具，其特征在于，所述后模板上与所述第一型腔、第二型腔相对的位置分别设置有镶针压板，所述镶针压板上固定设置有一排多个镶针。
  6. 如权利要求2和3所述的管状产品的一次注塑成型模具，其特征在于，所述前模板上在所述注射口的一侧设置有流道开关，所述流道开关垂直于所述前模芯。
  7. 如权利要求1所述的管状产品的一次注塑成型模具，其特征在于，所述第一浇口和第二浇口分别连接第一浇口套和第二浇口套，所述第一浇口套和第二浇口套的一端分别与不同钩针连接，所述钩针固定设置在压板上，完成一次注塑后，所述钩针使其对应的所述第一浇口和第二浇口分别脱离所述第一型腔和第二型腔。
  8. 如权利要求3所述的管状产品的一次注塑成型模具，其特征在于，所述前模板与后模板之间，分别设置有第一滑块、第二滑块、第三滑块、第四滑块、第五滑块，所述后模芯中间位置垂直向外延伸设置有推杆转轴。
  9. 如权利要求8所述的管状产品的一次注塑成型模具，其特征在于，所述推杆转轴外侧分别设置有齿轮、第一导向套、第二导向套，所述齿轮一侧设置有齿条，所述齿轮与齿条啮合连接，通过所述齿轮与齿条的传动带动所述推杆转轴转动，使所述后模芯随推杆转轴旋转，所述后模芯随所述推杆转轴旋转180°后，仍与所述前模芯之间形成所述第一型腔和第二型腔。
  10. 如权利要求8所述的管状产品的一次注塑成型模具，其特征在于，所述第一滑块、第三滑块、第四滑块分别设置在与所述第一型腔相邻的所述后模芯的三个侧面，所述第二滑块和第五滑块分别设置在与所述第二型腔相邻的所述后模芯的两个侧面。
  11. 如权利要求10所述的管状产品的一次注塑成型模具，其特征在于，所述前模板与后模板之间，靠近所述第三滑块和第四滑块分别设置有第一导柱和第二导柱；所述第二滑块和第五滑块内分别设置有第一斜导柱槽和第二斜导柱槽，所述第一斜导柱槽、第二斜导柱槽倾斜延伸至所述前模板上分别设置有与之对应的第一斜导柱、第二斜导柱，所述第一斜导柱和第二斜导柱导向驱动使所述第二滑块和第五滑块向外滑行扩张或向内滑行聚拢。
  12. 如权利要求10所述的管状产品的一次注塑成型模具，其特征在于，所述第一油缸与第一滑块之间连接有第一油缸拉杆，所述第一油缸与第一油缸拉杆之间设置有两个油缸固定板，临近所述第一油缸的所述油缸固定板一侧设置有开关；所述第二油缸与后模板之间连接有第二油缸拉杆，所述第二油缸与第 二油缸拉杆之间设置有一个所述油缸固定板；所述第三油缸与推杆转轴之间连接有第三油缸拉杆；所述第四油缸与第四滑块之间连接有第四油缸拉杆，所述第四油缸与第四油缸拉杆之间设置有两个所述油缸固定板；所述第一滑块一侧与所述第二油缸拉杆的一侧分别设置有一个开关固定板。
  13. 一种上述任一项所述的一次注塑成型模具管状产品的一次注塑成型方法，其特征在于，该方法中将产品分为本体一和本体二一次注塑完成，包括如下步骤：
    步骤一：合模，第一滑块、第二滑块、第三滑块、第四滑块、第五滑块均处于进芯状态，第一型腔和第二型腔内都是空的，关闭流道开关，只让第一浇口进胶，在第一型腔中成型出产品的本体一部分；
    步骤二：手动打开所述流道开关；
    步骤三：开模，第一油缸、第二油缸、第三油缸、第四油缸、第一斜导柱、和第二斜导柱驱动所述第一滑块、第二滑块、第三滑块、第四滑块、第五滑块向外滑行扩张，通过推杆转轴将后模芯顶出模框，再通过齿条和齿轮的传动将所述后模芯沿所述推杆转轴旋转180°，然后再通过所述推杆转轴将所述后模芯拉回模框，使步骤一中所述第一浇口成型的产品本体一，随着所述后模芯的旋转而旋转到另一侧的第二型腔；
    步骤四：合模，所述第一油缸、第二油缸、第三油缸、第四油缸、第一斜导柱、和第二斜导柱驱动所述第一滑块、第二滑块、第三滑块、第四滑块、第五滑块向内滑行聚拢，所述第一浇口、第二浇口同时进胶，在第一型腔中第一浇口成型产品的本体一部分，在第二型腔中第二浇口成型产品的本体二部分；
    步骤五：开模，顶出所述第二型腔中成型后的完整产品；
    步骤六：重复步骤三至步骤五动作，如此循环，连续生产。
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