CN203141716U - Mold core screw thread of injection mold - Google Patents

Mold core screw thread of injection mold Download PDF

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Publication number
CN203141716U
CN203141716U CN 201320079537 CN201320079537U CN203141716U CN 203141716 U CN203141716 U CN 203141716U CN 201320079537 CN201320079537 CN 201320079537 CN 201320079537 U CN201320079537 U CN 201320079537U CN 203141716 U CN203141716 U CN 203141716U
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CN
China
Prior art keywords
plate
core
screw thread
mold
mold core
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
CN 201320079537
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Chinese (zh)
Inventor
梁正华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taizhou plain Kai Hua automobile die Co., Ltd
Original Assignee
TAIZHOU CITY KAIHUA PLASTIC INDUSTRY Co Ltd
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 TAIZHOU CITY KAIHUA PLASTIC INDUSTRY Co Ltd filed Critical TAIZHOU CITY KAIHUA PLASTIC INDUSTRY Co Ltd
Priority to CN 201320079537 priority Critical patent/CN203141716U/en
Application granted granted Critical
Publication of CN203141716U publication Critical patent/CN203141716U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a mold core screw thread of an injection mold. The mold core screw thread comprises an upper compound plate and a lower compound plate, wherein a locating ring and a sprue bushing are mounted in the upper compound plate; a cavity is mounted below the upper compound plate; a perforation is formed in the lower compound plate; mold feet are mounted on the lower compound plate; a lower ejector retainner plate and an upper ejector retainner plate are arranged between the mold feet; a stripper plate ejector rod and a central ejector rod are mounted in the upper ejector retainner plate and the lower ejector retainner plate; a mold core is mounted on the mold feet; a screw thread groove is formed in the periphery of the mold core; a stripper plate is mounted on the mold core and is connected with the stripper plate ejector rod; and injection-molded plastic members are arranged among the stripper plate, the mold core and the cavity. The mold core screw thread is characterized in that the cross section of the screw thread groove in the periphery of the mold core is semicircular, and the depth S of the cross section of the screw thread groove is not more than 0.8mm.

Description

A kind of core screw thread of injection mold
Technical field
The utility model relates to injection mold, particularly relates to a kind of core screw thread of injection mold.
Background technology
Injection mold if will be shaped on internal thread at the working of plastics inwall, need be shaped on the thread groove of corresponding indent at core outer wall periphery usually when making working of plastics, working of plastics is after injection mo(u)lding like this, and its inwall just can form internal thread.And the cross section of existing core outer wall peripheral thread groove mostly is trapezoidal or triangle, when the demoulding, force with stripper plate, trapezoidal and leg-of-mutton internal thread is difficult for deviating from, cause working of plastics fracture easily or internal thread breaks in the thread groove of core, working of plastics percent defective height so not only, and influence next mold-closing injection.
Summary of the invention
The purpose of this utility model is in order to overcome the shortcoming that prior art exists, to provide a kind of assurance working of plastics to deviate from smoothly, the rate of reducing the number of rejects and seconds, the core screw thread of the injection mold of raising working of plastics intensity.
The technical scheme of the core screw thread of a kind of injection mold of the utility model is: comprise compound plate and following compound plate, centring ring and gate bush are installed in last compound plate, under the last compound plate die cavity is installed, having perforation in the compound plate down, the mould pin is installed on the following compound plate, ejector retainner plate and last ejector retainner plate are set down between the mould pin, on, stripper plate push rod and center push rod are installed in the following ejector retainner plate, at the mould pin core is installed, the core periphery is shaped on thread groove, at core stripper plate is installed, stripper plate links to each other with the stripper plate push rod, at stripper plate, the working of plastics of injection mo(u)lding is arranged between core and the die cavity, it is characterized in that: the thread groove cross section of described core periphery is semicircle, the depth S≤0.8mm in thread groove cross section.
The utility model discloses a kind of core screw thread of injection mold, it is the semicircular groove that the thread groove of core periphery is made the cross section, depth S≤the 0.8mm in thread groove cross section, the working of plastics screw thread of semi-circular cross-section cooperates with the core thread groove circular arc of semi-circular cross-section, deviate from easily, the screw thread fracture guarantees product quality when avoiding stripper plate to take off by force, and the circular arc screw thread can improve working of plastics intensity.
Description of drawings
Fig. 1 is the structural representation of the core screw thread of the utility model injection mold;
Fig. 2 is the local enlarged diagram in A place of Fig. 1.
The specific embodiment
The utility model relates to a kind of core screw thread of injection mold, as Fig. 1-shown in Figure 2, comprise compound plate 1 and following compound plate 2, centring ring 3 and gate bush 4 are installed in last compound plate, die cavity 5 is installed under the last compound plate, having perforation 6 in the compound plate 2 down, mould pin 7 is installed on the following compound plate, ejector retainner plate 8 and last ejector retainner plate 9 are set down between the mould pin, on, stripper plate push rod 10 and center push rod 11 are installed in the following ejector retainner plate, at mould pin 7 core 12 is installed, the core periphery is shaped on thread groove 13, at core stripper plate 14 is installed, stripper plate links to each other with stripper plate push rod 10, at stripper plate 14, the working of plastics 15 of injection mo(u)lding is arranged between core 12 and the die cavity 5, it is characterized in that: thread groove 13 cross sections of described core 12 peripheries are semicircle, the depth S≤0.8mm in thread groove cross section.It is the semicircular groove that the thread groove 13 of core 12 peripheries is made the cross section, depth S≤the 0.8mm in thread groove cross section, working of plastics 15 screw threads of semi-circular cross-section cooperate with core 12 thread grooves 13 circular arcs of semi-circular cross-section, deviate from easily, screw thread fracture when avoiding stripper plate the last 14 to take off, guarantee product quality, the circular arc screw thread can improve working of plastics 15 intensity.

Claims (1)

1. the core screw thread of an injection mold, comprise compound plate (1) and following compound plate (2), centring ring (3) and gate bush (4) are installed in last compound plate, die cavity (5) is installed under the last compound plate, having perforation (6) in the compound plate (2) down, mould pin (7) is installed on the following compound plate, ejector retainner plate (8) and last ejector retainner plate (9) are set down between the mould pin, on, stripper plate push rod (10) and center push rod (11) are installed in the following ejector retainner plate, at mould pin (7) core (12) is installed, the core periphery is shaped on thread groove (13), at core stripper plate (14) is installed, stripper plate links to each other with stripper plate push rod (10), in stripper plate (14), the working of plastics (15) that injection mo(u)lding is arranged between core (12) and the die cavity (5), it is characterized in that: thread groove (13) cross section of described core (12) periphery is semicircle, the depth S≤0.8mm in thread groove cross section.
CN 201320079537 2013-02-21 2013-02-21 Mold core screw thread of injection mold Active CN203141716U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320079537 CN203141716U (en) 2013-02-21 2013-02-21 Mold core screw thread of injection mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320079537 CN203141716U (en) 2013-02-21 2013-02-21 Mold core screw thread of injection mold

Publications (1)

Publication Number Publication Date
CN203141716U true CN203141716U (en) 2013-08-21

Family

ID=48969269

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320079537 Active CN203141716U (en) 2013-02-21 2013-02-21 Mold core screw thread of injection mold

Country Status (1)

Country Link
CN (1) CN203141716U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106696196A (en) * 2017-03-17 2017-05-24 宁波可逢日用品制造有限公司 Mold for manufacturing vacuum flask shell, demolding method and production method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106696196A (en) * 2017-03-17 2017-05-24 宁波可逢日用品制造有限公司 Mold for manufacturing vacuum flask shell, demolding method and production method

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: TAIZHOU KAIHUA AUTOMOTIVE MOULDS CO., LTD.

Free format text: FORMER NAME: TAIZHOU KAIHUA PLASTIC INDUSTRY CO., LTD.

CP03 Change of name, title or address

Address after: 317108, Zhejiang County, Taizhou Province three counties Pu dam town (Zhejiang three coastal industrial city)

Patentee after: Taizhou plain Kai Hua automobile die Co., Ltd

Address before: The three door county of Taizhou City, Zhejiang province 317108 along the red (three in Zhejiang coastal industrial city)

Patentee before: Taizhou City Kaihua Plastic Industry Co., Ltd.