WO2020133828A1 - Structure de raccordement pour bague de verrouillage de moule de cavité de moule et cavité de moule - Google Patents

Structure de raccordement pour bague de verrouillage de moule de cavité de moule et cavité de moule Download PDF

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Publication number
WO2020133828A1
WO2020133828A1 PCT/CN2019/083558 CN2019083558W WO2020133828A1 WO 2020133828 A1 WO2020133828 A1 WO 2020133828A1 CN 2019083558 W CN2019083558 W CN 2019083558W WO 2020133828 A1 WO2020133828 A1 WO 2020133828A1
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WO
WIPO (PCT)
Prior art keywords
mold
mold cavity
cooling water
water channel
ring
Prior art date
Application number
PCT/CN2019/083558
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English (en)
Chinese (zh)
Inventor
姜晓平
卢佳
邝妃劲
吴裕光
Original Assignee
广东星联精密机械有限公司
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.)
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Publication date
Application filed by 广东星联精密机械有限公司 filed Critical 广东星联精密机械有限公司
Publication of WO2020133828A1 publication Critical patent/WO2020133828A1/fr

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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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/48—Moulds
    • B29C49/4823—Moulds with incorporated heating or cooling 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/48—Moulds
    • B29C49/4823—Moulds with incorporated heating or cooling means
    • B29C2049/4825—Moulds with incorporated heating or cooling means for cooling moulds or mould parts

Definitions

  • the invention relates to a mold connection structure, in particular to a connection structure between a mold cavity locking ring and a mold cavity.
  • the two-step blow molding technology is one of the more widely used technologies in the production of plastic beverage bottles.
  • the first step of the two-step blow molding technology is to inject the preform first, and then pass the second step.
  • To heat and blow bottle preforms and apply two-step bottle blowing technology for beverage bottle production it is necessary to first manufacture a preform injection mold, and then use the mold to injection mold the preform.
  • Most of the injection molds for preforms are a multi-cavity structure.
  • the cavity installation part of the injection mold generally includes the mold cavity, the bottom mold, the mold cavity plate, and the mold clamping ring.
  • the mold cavity and the bottom mold are installed in the mold cavity plate ,
  • the mold clamping ring is installed on the end surface of the cavity plate, the mold clamping ring, the cavity, and the bottom mold are sequentially arranged along the same axis, and the four parts of the mold cavity, the bottom mold, the cavity plate, and the mold clamping ring need to be installed during installation
  • Position each other between each other to make the function of auxiliary injection such as cooling channels on the parts normal, and the existing cavity and mold ring installation methods are as follows: if the patent application number is 200880018862.X, the patent name is mold insert and As shown in the Chinese invention patent of the mold stack used with the molding machine, the cavity of the mold cavity is stuck in the groove of the mold clamping ring to locate the mold cavity, and a part of the outer wall of the mold clamping ring will extend into the cooling water channel of the mold cavity, hindering The flow of cooling water and reducing the cooling area of the cooling water channel lead to a reduction in the cooling efficiency of the cooling cavity of the mold cavity
  • the existing positioning structure between the mold clamping ring and the mold cavity is: processing the mold clamping ring at the end of the mold clamping ring Groove, machining the cavity convex groove at the end of the mold cavity, and then clamping the cavity convex groove in the mold clamping ring groove to locate the mold cavity, because the mold clamping ring groove is provided on the inner hole of the mold clamping ring, When machining the groove of the mold clamping ring, it is necessary to extend the tool into the inner hole of the mold clamping ring for processing, which is very difficult to process, and the general rate of the mold clamping ring of this connection structure is not high, and it cannot be used as a universal part. The cost of processing production.
  • the present invention provides a connection structure between a mold cavity locking ring and a mold cavity.
  • a connection structure between a mold cavity locking ring and a mold cavity includes a mold cavity, a bottom mold, a mold cavity plate, and a mold locking ring.
  • the mold cavity and the bottom mold are installed in the mold cavity plate, and the mold locking ring is installed in On the end surface of the mold cavity plate, the mold clamping ring, the mold cavity, and the bottom mold are sequentially arranged along the same axis, and the mold cavity cooling water channel is provided on the outer side wall of the mold cavity, and the mold cavity cooling water channel is clockwise or reverse
  • the spiral water channel structure of the hour hand the bottom mold is provided with a bottom mold cooling water channel, the mold cavity cooling water channel is communicated with the bottom mold cooling water channel, and the mold cavity plate is provided with a water inlet channel and a water outlet channel, the water inlet The channel and the water outlet channel are respectively connected to the mold cavity cooling water channel and the bottom mold cooling water channel, and the water inlet channel, mold cavity cooling water channel, bottom mold cooling water channel, and water outlet channel are sequentially connected
  • a through hole for inserting the mold core is provided in the middle of the mold clamping ring, the through hole includes an upper through hole with a rounded platform structure and a lower through hole with a cylindrical structure, and the top of the cavity Nested in the lower through hole, the positioning hole is separated from the upper through hole, the positioning hole is in communication with the lower through hole, and the outer periphery of the mold clamping ring is provided with a mounting hole for fixed installation with the mold cavity, the mold cavity There are threaded holes corresponding to the mounting holes, and the mold clamping ring and the mold cavity are fixedly connected by bolts.
  • an upper end face sealing ring is provided on the connecting end face between the mold cavity plate and the mold clamping ring.
  • a top seal ring is provided on the connection surface between the mold cavity and the mold clamping ring, and the top seal ring is provided above the mold cavity cooling water channel.
  • a lower end face seal ring is provided on the connecting end face between the mold cavity and the bottom mold.
  • a bottom seal ring is provided on the connection surface between the cavity plate and the bottom mold, and the bottom seal ring is provided below the cooling water channel of the bottom mold.
  • the end face of the cavity plate is provided with an upper end face sealing groove for installing an upper end face seal ring.
  • a top seal groove for installing a top seal ring is provided on the top of the mold cavity, and the top seal groove is provided between the mold cavity cooling water channel and the positioning groove.
  • the end face of the bottom mold is provided with a lower end face sealing groove for installing a lower end face sealing ring.
  • the bottom of the bottom mold is provided with a bottom sealing groove for installing a bottom sealing ring, and the bottom sealing groove is provided below the cooling water channel of the bottom mold.
  • the beneficial effects of the present invention are: a connection structure of a mold cavity locking ring and a mold cavity of the present invention, when assembling, only the bottom mold and the mold cavity need to be sleeved into the mold cavity plate in order, and the mold locking ring is fixed by bolts Installed on the mold cavity plate, adjust the relative position of the positioning hole and the positioning groove and insert the positioning pin to fix it.
  • the installation is convenient and the accuracy is high, and the mold locking ring and the mold cavity cooling water channel do not interfere with each other.
  • connection structure of the present invention when the connection structure of the present invention is processed, it is only necessary to set a positioning hole on the side of the mold clamping ring and a positioning groove on the outer side of the top of the mold cavity, and the processing is simple It is fast and can effectively reduce the processing cost, and the clamping ring of this connection structure has high versatility.
  • FIG. 3 is a schematic structural view of a cavity plate of this embodiment
  • FIG. 4 is a schematic structural view of a mode-locking ring of this embodiment
  • FIG. 5 is a schematic structural view of a mold cavity of this embodiment
  • FIG. 6 is a schematic structural view of the bottom mold of this embodiment.
  • This embodiment discloses a connection structure between a mold cavity locking ring and a mold cavity, including a mold cavity 1, a bottom mold 2, a mold cavity plate 3, and a mold locking ring 4, the mold cavity 1 and the bottom mold 2 are installed in the mold In the cavity plate 3, the mold locking ring 4 is installed on the end surface of the mold cavity plate 3, the mold locking ring 4, the mold cavity 1, and the bottom mold 2 are sequentially arranged along the same axis, and the outer side wall of the mold cavity 1 A mold cavity cooling water channel 12 is provided.
  • the mold cavity cooling water channel 12 is a spiral water channel structure clockwise or counterclockwise.
  • the bottom mold 2 is provided with a bottom mold cooling water channel 21.
  • the mold cavity cooling water channel 12 and the bottom mold The cooling water channel 21 communicates with each other.
  • the mold cavity plate 3 is provided with a water inlet channel 31 and a water outlet channel 32.
  • the water inlet channel 31 and the water outlet channel 32 are respectively connected to the mold cavity cooling water channel 12 and the bottom mold cooling water channel 21.
  • the water inlet channel 31, the mold cavity cooling water channel 12, the bottom mold cooling water channel 21, and the water outlet channel 32 are sequentially connected to form a circulating cooling water channel, and a positioning pin 5 is provided between the mold cavity 1 and the mold locking ring 4, and the mold locking A positioning hole 41 is provided on the side of the ring 4, a positioning groove 11 is provided on the top of the mold cavity 1, the top of the mold cavity 1 is sleeved in the mold clamping ring 4, and the positioning pin 5 is inserted into one end in the positioning hole 41 It is clamped on the positioning groove 11.
  • the mold clamping ring 4 is fixedly installed on the mold cavity plate 3 by bolts, and the positioning hole 41 is adjusted.
  • the positioning pin 5 can be inserted into the relative position of the positioning groove 11 to fix it, and the installation is convenient and the accuracy is high; when the connection structure of the present invention is processed, only the positioning hole 41 needs to be opened on the side of the mold clamping ring 4 and the mold cavity 1 It is only necessary to set the positioning groove 11 on the outer side of the top, and the processing is simple and fast, which can effectively reduce the processing cost, and the mold clamping ring 4 of this connection structure is more versatile, and positioning through this connection structure can make the mold cavity cooling water channel 12 and The water inlet channel 31 is accurately installed, so that the cooling water flow of the mold cavity 1 flows according to a predetermined circulating cooling water channel, and the cooling performance of the mold cavity 1 is ensured.
  • a through hole 42 for inserting the mold core is provided in the middle of the mold clamping ring 4, and the through hole 42 includes an upper through hole 421 with a round platform structure and a lower through hole 422 with a cylindrical structure.
  • the top of the mold cavity 1 is sleeved in the lower through hole 422, the positioning hole 41 is separated from the upper through hole 421, the positioning hole 41 communicates with the lower through hole 422, and the outer periphery of the mold clamping ring 4 is provided with A mounting hole 43 fixedly installed with the mold cavity 1, the mold cavity 1 is provided with a screw hole corresponding to the mounting hole 43, the mold locking ring 4 and the mold cavity 1 are fixedly connected by bolts, and the mold cavity 1 is provided with a body cavity 14 for forming a bottle body in the middle, and a bottom cavity 2 for forming a bottle bottom and an injection cavity 25 for connecting an injection molding machine are formed on the bottom mold 2 The cavity 14 communicates with the bottom mold cavity 24.
  • An injection channel 26 is provided between the injection cavity 25
  • an upper end surface sealing ring 6 is provided on the connecting end surface between the cavity plate 3 and the mold clamping ring 4, and an upper surface for installing the upper end surface sealing ring 6 is provided on the end surface of the cavity plate 3
  • An end face sealing groove 33, a lower end face sealing ring 8 is provided on the connecting end face between the cavity 1 and the bottom die 2, and a lower end face sealing groove for installing the lower end face sealing ring 8 is provided on the end face of the bottom die 2 22.
  • the upper end face seal ring 6 and the lower end face seal ring 8 They are respectively installed on the connecting end faces. During installation, the upper end face sealing ring 6 and the lower end face sealing ring 8 are pressed tightly by the pressure of the clamping ring 4 and the mold cavity 1 to prevent the deterioration of the sealing effect due to the aging and wear of the sealing ring material.
  • the pressure effect of the mold clamping ring 4 and the mold cavity 1 can effectively improve the sealing effect of the mold cavity cooling water channel 12.
  • connection surface between the mold cavity 1 and the mold clamping ring 4 is provided with a top seal ring 7, the top seal ring 7 is provided above the mold cavity cooling water channel 12, the The top is provided with a top seal groove 13 for installing the top seal ring 7, and the top seal groove 13 is provided between the mold cavity cooling water channel 12 and the positioning groove 11.
  • connection surface between the cavity plate 3 and the bottom mold 2 is provided with a bottom seal ring 9, the bottom seal ring 9 is provided below the cooling water passage 21 of the bottom mold, the bottom mold 2
  • the bottom is provided with a bottom sealing groove 23 for installing the bottom sealing ring 9.
  • the bottom sealing groove 23 is provided below the cooling water channel 21 of the bottom mold.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

La présente invention concerne une structure de raccordement pour une bague de verrouillage de moule de cavité de moule et une cavité de moule comprenant une cavité de moule, un moule inférieur, une plaque de cavité de moule et une bague de verrouillage de moule. La cavité de moule et le moule inférieur sont montés dans la plaque de cavité de moule ; la bague de verrouillage de moule est montée sur la surface d'extrémité de la plaque de cavité de moule ; la bague de verrouillage de moule, la cavité de moule et le moule inférieur sont agencés séquentiellement le long du même axe ; un canal d'eau de refroidissement de cavité de moule est prévu sur la paroi latérale externe de la cavité de moule ; un canal d'eau de refroidissement de moule inférieur est prévu sur le moule inférieur ; le canal d'eau de refroidissement de cavité de moule est en communication avec le canal d'eau de refroidissement de moule inférieur, et la plaque de cavité de moule est dotée d'un canal d'entrée d'eau et d'un canal de sortie d'eau ; le canal d'entrée d'eau et le canal de sortie d'eau sont raccordés séparément au canal d'eau de refroidissement de cavité de moule et au canal d'eau de refroidissement de moule inférieur ; le canal d'entrée d'eau, le canal d'eau de refroidissement de cavité de moule, le canal d'eau de refroidissement de moule inférieur et le canal de sortie d'eau sont en communication séquentielle pour former un canal d'eau de refroidissement circulant ; une broche de positionnement est prévue entre la cavité de moule et la bague de verrouillage de moule pour un raccordement ; un trou de positionnement est prévu au niveau de la surface latérale de la bague de verrouillage de moule ; une rainure de positionnement est prévue au niveau du sommet de la cavité de moule ; la partie supérieure de la cavité de moule est emmanchée dans la bague de verrouillage de moule; l'extrémité de la broche de positionnement insérée dans le trou de positionnement est clipsée sur la rainure de positionnement.
PCT/CN2019/083558 2018-12-29 2019-04-20 Structure de raccordement pour bague de verrouillage de moule de cavité de moule et cavité de moule WO2020133828A1 (fr)

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CN201811641931.4A CN109551742A (zh) 2018-12-29 2018-12-29 一种模腔锁模环与模腔的连接结构
CN201811641931.4 2018-12-29

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Cited By (1)

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CN112519118A (zh) * 2020-11-02 2021-03-19 卫学武 一种具有内置循环式水冷机构的注塑成型模具

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CN109551742A (zh) * 2018-12-29 2019-04-02 广东星联精密机械有限公司 一种模腔锁模环与模腔的连接结构

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US6569370B1 (en) * 2000-05-25 2003-05-27 Husky Injection Molding System Ltd. Injection molding system and method using cavity flange and neck ring insert
CN202540709U (zh) * 2012-04-19 2012-11-21 杭州松源机械制造有限公司 瓶坯模定位法兰装置
CN209381364U (zh) * 2018-12-29 2019-09-13 广东星联精密机械有限公司 一种模腔锁模环与模腔的连接结构

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CN206765238U (zh) * 2016-07-01 2017-12-19 四川华顺原管业有限公司 锁模牢固的压力管模具
CN207140276U (zh) * 2017-01-19 2018-03-27 惠州市艾宝特包装制品有限公司 一种使用模腔冷却水道结构的注坯模具
CN109551742A (zh) * 2018-12-29 2019-04-02 广东星联精密机械有限公司 一种模腔锁模环与模腔的连接结构

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112519118A (zh) * 2020-11-02 2021-03-19 卫学武 一种具有内置循环式水冷机构的注塑成型模具

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