CN210026125U - Horn sprue capable of preventing disconnection residue and ejection from mold - Google Patents

Horn sprue capable of preventing disconnection residue and ejection from mold Download PDF

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Publication number
CN210026125U
CN210026125U CN201920823722.5U CN201920823722U CN210026125U CN 210026125 U CN210026125 U CN 210026125U CN 201920823722 U CN201920823722 U CN 201920823722U CN 210026125 U CN210026125 U CN 210026125U
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China
Prior art keywords
horn
horn runner
passageway
runner
mold insert
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Active
Application number
CN201920823722.5U
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Chinese (zh)
Inventor
黄小怣
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.)
Wuxi Jinxin precision mould Co.,Ltd.
Original Assignee
Suzhou Jianbang Precision Mould Co Ltd
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Publication date
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Priority to CN201920823722.5U priority Critical patent/CN210026125U/en
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Abstract

The utility model discloses a prevent to break off remaining ox horn runner that flies with demolding bullet, including public mould, master model, ox horn runner mold insert, ox horn runner, goods die cavity, oval mouth, first passageway, second passageway, back-off structure, movable mold insert, T-shaped piece, bolt, briquetting, ejector pin, the public mould matches coincideing with the master model correspondence from top to bottom, the position that lies in on the public mould and is close to master model one side is provided with ox horn runner mold insert between two parties, ox horn runner mold insert forms ox horn runner and goods die cavity with the master model jointly, the shape of ox horn runner is oval mouth, the first passageway that runs through from top to bottom is provided with along vertical direction at public mould center. In this way, the utility model provides a prevent to break off and remain and the ox horn runner that the demolding bullet flies optimizes the demoulding structure of ox horn runner shape and ox horn runner, overcomes the runner disconnection of thin thick piece and remains and the demolding bullet flies the problem, has reduced injection moulding material cost and postprocessing cost of labor.

Description

Horn sprue capable of preventing disconnection residue and ejection from mold
Technical Field
The utility model relates to the field of molds, especially, relate to a prevent to break off and remain and go out ox horn runner that mould bullet flies.
Background
Injection molding refers to the process of injecting the melted material into a mold cavity under high pressure, cooling and solidifying to obtain the product.
In the injection molding process of plastic parts, a horn gate connecting and forming cavity is usually used to automatically cut off a gate. The prior oxhorn gate has the following defects:
the residue is higher than the surface of the product after the sprue is broken, which affects the use of the product. A groove of 0.5 mm-1.0 mm is designed at a gate when a common mold is designed for the problem, but when the wall thickness of a product is thinner (such as below 1.2 mm), the groove at the gate can only be 0.2 mm-0.3 mm, and the residual of the broken gate can not be higher than the surface of the product under the condition.
The sprue demoulding process can forcedly push the sprue to be straight and then separate from the rear mould, the deformation and straightening process of the horn sprue can generate great reaction elasticity, and for preventing the horn sprue from bouncing off, a section of rubber column is added on a flow channel and positioned in a rear mould core before the horn sprue is not separated from the rear mould, so that the horn demoulding process is ensured. However, the length of the glue column is too long, which results in an excessively heavy casting weight and thus an increase in injection molding costs.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a prevent to break off and remain and the ox horn runner that the demolding bullet flies, optimizes the demoulding structure of ox horn runner shape and ox horn runner, and the runner disconnection of overcoming thin thick piece is remained and the demolding bullet flies the problem, has reduced injection moulding material cost and postprocessing cost of labor.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a prevent to break off remaining ox horn runner that flies with demolding bullet, includes public mould, master model, ox horn runner mold insert, ox horn runner, goods die cavity, oval mouth, first passageway, second passageway, back-off structure, movable mold insert, T-shaped piece, bolt, briquetting, ejector pin, public mould and master model correspond the matching from top to bottom and coincide, the position that is located on being close to master model one side on the public mould is provided with ox horn runner mold insert in the middle, ox horn runner mold insert forms ox horn runner and goods die cavity with the master model jointly, the shape of ox horn runner is oval mouth, public mould center is provided with the first passageway that runs through from top to bottom along the vertical direction, ox horn runner mold insert center is provided with the second passageway that runs through from top to bottom along the vertical direction, first passageway, second passageway are coaxial and form the back-off structure that the diameter is different, movable mold insert first passageway, The movable insert is limited in the first channel and the second channel by a pressing block with a bolt, and the movable insert is hollow and contains an ejector rod with an external vertically inserted part.
In a preferred embodiment of the present invention, the removable insert has a hollow structure for accommodating the pin, and the hollow structure at the top end of the removable insert has a trapezoidal section.
The utility model has the advantages that: the utility model provides a pair of prevent to break off and remain and go out mould bullet horn runner that flies optimizes the demoulding structure of horn runner shape and horn runner, and the runner disconnection of overcoming thin thick piece is remained and is gone out mould bullet and fly the problem, has reduced injection moulding material cost and postprocessing cost of labor.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
FIG. 1 is a block diagram of a preferred embodiment of a bull horn gate of the present invention to prevent break residue and ejection from the mold;
fig. 2 is a structural diagram of a preferred embodiment of a horn gate of the present invention for preventing disconnection residue and ejection from a mold.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-2, the embodiment of the present invention includes:
the utility model provides a prevent to break off remaining ox horn runner that flies with demolding bullet, includes public mould 1, master model 2, ox horn runner mold insert 3, ox horn runner 4, goods die cavity 5, oval mouth 6, first passageway 7, second passageway 8, back-off structure 9, movable mold insert 10, T-block 11, bolt 12, briquetting 13, ejector pin 14, public mould 1 corresponds the matching coincide from top to bottom with master model 2, the position that is located on public mould 1 and is close to one side of master model 2 is provided with ox horn runner 4 mold insert 3 in the middle, ox horn runner 4 mold insert 3 forms ox horn runner 4 and goods die cavity 5 with master model 2 jointly, the shape of ox horn runner 4 is oval mouth 6, public mould 1 center is provided with first passageway 7 that runs through from top to bottom along the vertical direction, ox horn runner 4 mold insert 3 center is provided with second passageway 8 that runs through from top to bottom along the vertical direction, first passageway 7, The second channel 8 is coaxial and forms an inverted structure 9 with different diameters, the movable insert 10 is inserted into the first channel 7 and the second channel 8 until the ox horn gate 4, a T-shaped block 11 matched with the inverted structure 9 is arranged at the lower end of the movable insert 10, the movable insert 10 is limited in the first channel 7 and the second channel 8 by a pressing block 13 with a bolt 12, and the movable insert 10 is hollow and contains an ejector rod 14 with an external vertically inserted part.
The movable insert 10 is a hollow structure for accommodating the ejector rod 14, and the section of the hollow structure at the top end of the movable insert 10 is trapezoidal.
The gate shape is made into an ellipse as shown in the upper drawing, and a groove is formed in the runner to facilitate deformation of the ox horn during mold stripping.
The manufacturing quality is improved by the optimized horn gate shape due to the influence of the residues after the gate is broken.
The gate is prevented from bouncing off by optimizing the demoulding structure of the horn gate.
The operation of the demolding structure is described as follows:
the ejector rod moves upwards to push the ox horn sprue to move upwards, a 16-degree reverse buckling structure is arranged between the ox horn sprue and the movable insert to enable the movable insert to move upwards together, when the movable insert moves upwards to the hanging table of the movable insert and touches the male die, the movable insert stops moving, and the ejector rod continues to move upwards to separate the ox horn sprue from the movable insert.
To sum up, the utility model provides a prevent to break off and remain and go out mould bullet ox horn runner 4 that flies optimizes 4 shapes of ox horn runner and ox horn runner 4's demoulding structure, and the runner disconnection of overcoming thin thick piece is remained and is gone out mould bullet and fly the problem, has reduced injection moulding material cost and postprocessing cost of labor.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the specification of the present invention, or directly or indirectly applied to other related technical fields, all included in the same way in the patent protection scope of the present invention.

Claims (2)

1. The utility model provides a prevent to break off remaining ox horn runner that flies with demolding bullet, its characterized in that, includes public mould, master model, ox horn runner mold insert, ox horn runner, goods die cavity, oval mouth, first passageway, second passageway, back-off structure, movable mold insert, T-shaped piece, bolt, briquetting, ejector pin, public mould and master model correspond from top to bottom to match coincide, the position that lies in on the public mould and is close to master model one side is provided with ox horn runner mold insert between two parties, ox horn runner mold insert forms ox horn runner and goods die cavity with the master model jointly, the shape of ox horn runner is oval mouth, public mould center is provided with the first passageway that runs through from top to bottom along the vertical direction, ox horn runner mold insert center is provided with the second passageway that runs through from top to bottom along the vertical direction, first passageway, second passageway are coaxial and form the back-off structure that the diameter is different, movable mold insert first passageway, The movable insert is limited in the first channel and the second channel by a pressing block with a bolt, and the movable insert is hollow and contains an ejector rod with an external vertically inserted part.
2. The gate horn of claim 1, wherein the removable insert is hollow for receiving the pin, and the hollow at the top end of the removable insert is trapezoidal in cross section.
CN201920823722.5U 2019-06-03 2019-06-03 Horn sprue capable of preventing disconnection residue and ejection from mold Active CN210026125U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920823722.5U CN210026125U (en) 2019-06-03 2019-06-03 Horn sprue capable of preventing disconnection residue and ejection from mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920823722.5U CN210026125U (en) 2019-06-03 2019-06-03 Horn sprue capable of preventing disconnection residue and ejection from mold

Publications (1)

Publication Number Publication Date
CN210026125U true CN210026125U (en) 2020-02-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920823722.5U Active CN210026125U (en) 2019-06-03 2019-06-03 Horn sprue capable of preventing disconnection residue and ejection from mold

Country Status (1)

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CN (1) CN210026125U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021223417A1 (en) * 2020-05-04 2021-11-11 苏州汉扬精密电子有限公司 Ejection structure capable of avoiding bounce of hard rubber stub bar

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021223417A1 (en) * 2020-05-04 2021-11-11 苏州汉扬精密电子有限公司 Ejection structure capable of avoiding bounce of hard rubber stub bar

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Address after: 214000 No. 3, Xingye Road, Luoshe Town, Huishan District, Wuxi City, Jiangsu Province

Patentee after: Wuxi Jinxin precision mould Co.,Ltd.

Address before: 215500 building 4, No. 8, Taizhou Road, Yushan high tech Industrial Park, Changshu, Suzhou, Jiangsu

Patentee before: Suzhou Jianbang Precision Mould Co.,Ltd.