CN109955431B - Positioning and placing structure of insert - Google Patents

Positioning and placing structure of insert Download PDF

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Publication number
CN109955431B
CN109955431B CN201711401592.8A CN201711401592A CN109955431B CN 109955431 B CN109955431 B CN 109955431B CN 201711401592 A CN201711401592 A CN 201711401592A CN 109955431 B CN109955431 B CN 109955431B
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China
Prior art keywords
positioning
insert
top plate
plate
male
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CN201711401592.8A
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CN109955431A (en
Inventor
郭明文
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Mitac Precision Technology Kunshan Ltd
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Mitac Precision Technology Kunshan Ltd
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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
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14065—Positioning or centering articles in the mould
    • B29C45/14073—Positioning or centering articles in the mould using means being retractable during injection
    • 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
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14065—Positioning or centering articles in the mould
    • B29C45/14073—Positioning or centering articles in the mould using means being retractable during injection
    • B29C2045/14081—Positioning or centering articles in the mould using means being retractable during injection centering means retracted by the injection pressure

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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

The invention relates to a positioning and placing structure of an insert, comprising: a limiting column; the positioning top plate is attached to the lower part of the male template; the shutter is arranged in the male template and the positioning top plate and locks the male template and the positioning top plate; one end of each first positioning thimble is fixed in the positioning top plate, the other end of each first positioning thimble protrudes out of the core insert, each first positioning thimble clamps the insert, and each insert is provided with a positioning hole; one end of the second positioning thimble is arranged in the core insert, the other end of the second positioning thimble protrudes out of the core insert, the positioning hole of the insert is matched with the other end of the second positioning thimble, and the height of the second positioning thimble protruding out of the core insert is smaller than that of the first positioning thimble; and one end of the return pin is fixed in the positioning top plate, and the other end of the return pin extends out of the male template. The positioning and placing structure of the invention ensures that the insert is placed accurately, and excessive positioning holes are not left to influence the appearance.

Description

Positioning and placing structure of insert
[ technical field ] A method for producing a semiconductor device
The invention relates to a die structure, in particular to a positioning and placing structure of an insert.
[ background of the invention ]
In the injection Molding production, the product is often molded by Insert Molding (Insert Molding). The insert molding is to load a prepared heterogeneous material (i.e., an insert) into a mold, and then inject a molten resin material to combine with the insert to form an integrated product. The insert can be made of various materials such as metal, carbon fiber plates and the like.
Therefore, the positioning of the insert is important when insert molding. If the insert is inaccurately positioned and placed, the subsequent injection molded product has problems and even can not be injection molded. If too many positioning holes are formed in the insert, the appearance of the product is affected.
For example, when the inserts were the carbon fiber board, because can warp behind the carbon fiber board heating and be difficult for laying, only set up the locating hole and do three pilot pin in the centre of carbon fiber board (like LOGO department), the location is laid inaccurately from this.
In view of the above, it is necessary to develop a positioning and placing structure for an insert, so as to solve the problem of inaccurate insert placement during insert molding.
[ summary of the invention ]
Therefore, the present invention is directed to a positioning and placing structure for an insert, which enables the insert to be placed accurately without leaving too many positioning holes to affect the appearance.
In order to achieve the above object, the positioning and placing structure of an insert of the present invention is applied to a mold, the mold includes a lower fixing plate, a lower ejector plate, an upper ejector plate, a core insert, and a core plate, and the positioning and placing structure of the insert includes:
one end of the limiting column is fixed in the lower ejection plate, and the other end of the limiting column extends out of the upper ejection plate;
the locating top plate is attached to the lower part of the male template, and a stroke distance is arranged between the locating top plate and the limiting column;
the shutter is arranged in the male template and the positioning top plate and locks the male template and the positioning top plate;
one end of each first positioning thimble is fixed in the positioning top plate, the other end of each first positioning thimble protrudes out of the male die core, the height of the protruding male die core is equal to the stroke distance, the first positioning thimbles clamp the insert, and the insert is provided with positioning holes;
one end of the second positioning thimble is arranged in the core insert, the other end of the second positioning thimble protrudes out of the core insert, the positioning hole of the insert is matched with the other end of the second positioning thimble, and the height of the second positioning thimble protruding out of the core insert is smaller than that of the first positioning thimble;
and one end of the return pin is fixed in the positioning top plate, and the other end of the return pin extends out of the male template.
Optionally, the insert is a metal piece, a carbon fiber plate or a plastic plate.
Optionally, the shutter includes nylon cover and taper screw, the nylon cover is located in the public template, taper screw one end is fixed in the roof of location, and the other end locks in the nylon cover.
Optionally, the second positioning thimble is disposed below one end of the core insert, and an elastic element is disposed below the second positioning thimble.
Optionally, the resilient element is a spring.
Optionally, the number of the first positioning thimbles is four, and every two first positioning thimbles are correspondingly arranged on two sides of the insert.
Optionally, the number of the second positioning thimbles is three, and the second positioning thimbles are arranged in a triangular shape near the center of the insert.
Compared with the prior art, the insert positioning and placing structure has the advantages that the first positioning ejector pin is arranged, after a last product is ejected, the upper ejection plate and the lower ejection plate return, the positioning top plate is attached to the bottom surface of the male template under the action of the shutter, the first positioning ejector pin protrudes out of the surface of the male mold core, and the insert is placed in the first positioning ejector pin; and then, closing the die, returning the positioning top plate to drive the first positioning ejector pin and the insert to return, finishing accurate positioning after the insert moves downwards until the positioning hole is matched with the second positioning ejector pin, and continuing returning the first positioning ejector pin until the die is completely closed and the insert is positioned. Therefore, the positioning and placing structure enables the insert to be placed accurately, and excessive positioning holes are not left to influence the appearance.
[ description of the drawings ]
Fig. 1 is a schematic view illustrating a positioning and placing structure of an insert according to the present invention in a mold-open state.
Fig. 2 is a partially enlarged view of fig. 1.
Fig. 3 is a schematic view illustrating the positioning and placing structure of the insert of the present invention in a mold clamping state at an angle.
Fig. 4 is a partially enlarged view of fig. 3.
Fig. 5 is a schematic view showing the positioning and placing structure of the insert of the present invention at another angle in the mold clamping state.
[ detailed description ] embodiments
Referring to fig. 1 and 2, fig. 1 is a schematic view illustrating a positioning and placing structure of an insert according to the present invention in a mold-open state, and fig. 2 is a partially enlarged view of fig. 1.
The positioning and placing structure of the Insert is applied to a mold, in particular to an Insert Molding (Insert Molding) mold, the mold comprises a lower fixing plate 10, a lower ejection plate 11, an upper ejection plate 12, a male mold plate 13, a male mold core 14, a female mold core 15 and a female mold plate 16, and the positioning and placing structure of the Insert comprises:
one end of the limiting column 100 is fixed in the lower ejection plate 11, and the other end of the limiting column extends out of the upper ejection plate 12;
the positioning top plate 200 is attached to the lower portion of the male template 13, a stroke distance is arranged between the positioning top plate 200 and the limiting column 100, the stroke distance is S, and S does not need to be too high and can be 5 mm;
a shutter 300 provided in the core plate 13 and the positioning top plate 200, and locking the core plate 13 and the positioning top plate 200;
a first positioning thimble 400, one end of which is fixed in the positioning top plate 200 and the other end of which protrudes out of the core insert 14, wherein the height of the protruding core insert 14 is equal to the stroke distance, the first positioning thimble 400 clamps the insert 20, and a positioning hole is arranged on the insert 20;
a second positioning thimble 500, one end of which is arranged in the core insert 14 and the other end of which protrudes out of the core insert 14, wherein the positioning hole of the insert 20 is matched with the other end of the second positioning thimble 500, the height of the second positioning thimble 500 protruding out of the core insert 14 is less than the height of the first positioning thimble 400 protruding out of the core insert 14, and the height of the second positioning thimble 500 protruding out of the core insert is set to be H, and H is less than S;
one end of the return pin 600 is fixed in the positioning top plate 200, the other end of the return pin extends out of the male die plate 13, and the return pin 600 is used for driving the positioning top plate 200 to return when the die is closed.
The insert 20 is a metal piece, a carbon fiber plate, or a plastic plate, but is not limited thereto.
The shutter 300 includes a nylon sleeve 301 and a tapered screw 302, the nylon sleeve 301 is disposed in the male mold plate 13, one end of the tapered screw 302 is fixed in the positioning top plate 200, the other end of the tapered screw is locked in the nylon sleeve 301, when the positioning top plate 200 returns, the force applied to the positioning top plate 200 is greater than the binding force of the shutter 300, the shutter 300 is opened, that is, the tapered screw 302 is separated from the nylon sleeve 301, so that the positioning top plate 200 is separated from the male mold plate 13.
An elastic element 501 is arranged below one end of the core insert 14 of the second positioning thimble 500, the elastic element 501 plays a role in buffering, when the mold core plate 13 and the mold cavity plate 16 are closed, the mold cavity plate 16 presses the insert 20 and the second positioning thimble 500 to slightly move downwards, at this time, the elastic element 501 is compressed, so that the insert 20 is accurately positioned in the cavity of the mold, and the elastic element 501 can be a spring.
The number of the first positioning pins 400 is four, and two first positioning pins are correspondingly disposed on two sides of the insert 20, so as to achieve the best effect of placing the insert 20, and if the number of the first positioning pins is more than four, the placing of the insert 20 is not facilitated.
The number of the second positioning thimbles 500 is three, and the positions near the center of the insert 20 are arranged in a triangular shape, so that a stabilizing effect can be achieved, and accordingly, the number of the positioning holes on the insert 20 is also three.
Referring to fig. 1 and 2 again, after the last product is ejected, the upper ejection plate 12 and the lower ejection plate 11 will return to their original positions under the action of the oil cylinder, and the positioning top plate 200 still adheres to the bottom surface of the male mold 13 under the action of the shutter 300, so that the first positioning pin 400 protrudes from the surface of the male mold core 14 by a distance S, and the second positioning pin 500 protrudes from the surface of the male mold core 14 by a distance H; insert 20 is then placed in first positioning pin 400.
Referring to fig. 3 to 5, fig. 3 is a schematic view illustrating a positioning and placing structure of an insert according to the present invention in a mold clamping state at an angle, fig. 4 is a partially enlarged view of fig. 3, and fig. 5 is a schematic view illustrating the positioning and placing structure of the insert according to the present invention in a mold clamping state at another angle.
The mold is closed and the female mold plate 16 is moved in a direction to approach the male mold plate 13. The female die plate 16 presses the return pin 600 to return, the return pin 600 returns to drive the positioning top plate 200 to return, the shutter 300 is opened, the positioning top plate 200 returns to drive the first positioning ejector pin 400 to return, meanwhile, the first positioning ejector pin 400 clamps the insert 20 to move downwards, when the insert 20 moves downwards until the second positioning ejector pin 500 is arranged in the positioning hole, the insert 20 is positioned by the second positioning ejector pin 500, and stops moving downwards together with the first positioning ejector pin 400.
After the insert 20 is positioned by the second positioning thimble 500, the positioning top plate 200 and the first positioning thimble 400 continue to return downwards under the action of the return pin 600, the insert 20 is separated from the second positioning thimble 500 until the positioning top plate 200 contacts the limiting column 100, the return is completed, the mold is completely closed, the insert 20 presses the elastic element 501 to be compressed under the action of the female mold plate 16, and the insert 20 contacts with the male mold core 14 and is accurately positioned in the cavity of the mold.
Therefore, according to the positioning and placing structure, the first positioning ejector pins 400 are arranged, so that the first positioning ejector pins 400 return when the die is closed, the shape of a subsequent product is not influenced, the insert 20 is placed accurately, and the appearance is not influenced by the excessive positioning holes.

Claims (5)

1. The utility model provides a location mounting structure of inserts, is applied to in the mould, the mould includes bottom plate, lower liftout plate, goes up liftout plate, public template, public mould benevolence, cavity benevolence and cavity template, its characterized in that, the location mounting structure of inserts includes:
one end of the limiting column is fixed in the lower ejection plate, and the other end of the limiting column extends out of the upper ejection plate;
the locating top plate is attached to the lower part of the male template, and a stroke distance is arranged between the locating top plate and the limiting column;
the shutter is arranged in the male template and the positioning top plate and locks the male template and the positioning top plate;
one end of the first positioning ejector pin is fixed in the positioning top plate, the other end of the first positioning ejector pin protrudes out of the male die core, the height of the protruding male die core is equal to the stroke distance, the first positioning ejector pin clamps the insert, positioning holes are formed in the insert, the number of the first positioning ejector pins is four, and every two first positioning ejector pins are correspondingly arranged on two sides of the insert;
the second positioning thimble is arranged below one end of the male die core;
and one end of the return pin is fixed in the positioning top plate, and the other end of the return pin extends out of the male template.
2. The insert positioning and placement structure according to claim 1, wherein the insert is a metal, carbon fiber or plastic plate.
3. The insert positioning and placing structure according to claim 1, wherein the shutter comprises a nylon sleeve and a tapered screw, the nylon sleeve is arranged in the male mold plate, one end of the tapered screw is fixed in the positioning top plate, and the other end of the tapered screw is locked in the nylon sleeve.
4. The insert positioning and placement arrangement of claim 1, wherein said resilient member is a spring.
5. The insert positioning and placing structure of claim 1, wherein the number of the second positioning thimbles is three, and the second positioning thimbles are arranged in a triangular shape near the center of the insert.
CN201711401592.8A 2017-12-22 2017-12-22 Positioning and placing structure of insert Active CN109955431B (en)

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CN201711401592.8A CN109955431B (en) 2017-12-22 2017-12-22 Positioning and placing structure of insert

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Application Number Priority Date Filing Date Title
CN201711401592.8A CN109955431B (en) 2017-12-22 2017-12-22 Positioning and placing structure of insert

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CN109955431A CN109955431A (en) 2019-07-02
CN109955431B true CN109955431B (en) 2021-09-14

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114589864B (en) * 2020-12-04 2023-12-12 汉达精密电子(昆山)有限公司 Carbon fiber plate positioning structure
CN117103565A (en) * 2023-10-25 2023-11-24 江苏亚冠轨道交通科技有限公司 Forming equipment and process of handrail supporting seat for urban rail transit tunnel evacuation platform

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993014618A1 (en) * 1992-01-13 1993-07-22 Asm-Fico Tooling B.V. Apparatus for moulding a lead frame and chips arranged thereon
CN201587061U (en) * 2009-12-12 2010-09-22 佛山市顺德区汉达精密电子科技有限公司 Plastic mould for insert positioning and forming
CN204354398U (en) * 2014-12-18 2015-05-27 英瑟泰科精密注塑（苏州）有限公司 A kind of metal insert injection mold with floating pilot pin

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3943696B2 (en) * 1998-03-11 2007-07-11 株式会社プライムポリマー Manufacturing method of laminated molded product

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993014618A1 (en) * 1992-01-13 1993-07-22 Asm-Fico Tooling B.V. Apparatus for moulding a lead frame and chips arranged thereon
CN201587061U (en) * 2009-12-12 2010-09-22 佛山市顺德区汉达精密电子科技有限公司 Plastic mould for insert positioning and forming
CN204354398U (en) * 2014-12-18 2015-05-27 英瑟泰科精密注塑（苏州）有限公司 A kind of metal insert injection mold with floating pilot pin

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