CN210617192U - Opposite-surface integrated demoulding ejector rod structure in injection mould - Google Patents

Opposite-surface integrated demoulding ejector rod structure in injection mould Download PDF

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Publication number
CN210617192U
CN210617192U CN201921487411.2U CN201921487411U CN210617192U CN 210617192 U CN210617192 U CN 210617192U CN 201921487411 U CN201921487411 U CN 201921487411U CN 210617192 U CN210617192 U CN 210617192U
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China
Prior art keywords
ejector rod
forming area
extension
central
ejector
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CN201921487411.2U
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Chinese (zh)
Inventor
周钱
宋永泉
宋燕
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Jiaxing Songshi Moulding Industrial Co ltd
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Jiaxing Songshi Moulding Industrial Co ltd
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Abstract

The utility model discloses an opposite sex's face integral type drawing of patterns ejector pin structure among injection mold, characterized by: comprises a top plate component, a mandril component and a die core; the die core is provided with a convex die and a plurality of top holes, the die core is provided with a central forming area, a side forming area and an extension forming area, the top holes respectively correspond to the central forming area, the side forming area and the extension forming area, the front end of each top hole penetrates through the surface of the convex die, and the rear end of each top hole penetrates through the back of the die core; the ejector rod component is internally provided with a central ejector rod, a side ejector rod and an extension ejector rod, the central ejector rod, the side ejector rod and the extension ejector rod are respectively distributed in the top holes of the central forming area, the side forming area and the extension forming area, and the lower end of the ejector rod is fixed on the top plate component. The utility model discloses make the injection molding stress at the in-process of drawing of patterns even, it is stable ejecting, improve the quality of injection molding drawing of patterns.

Description

Opposite-surface integrated demoulding ejector rod structure in injection mould
Technical Field
The utility model relates to an injection mold, concretely relates to opposite sex's face integral type drawing of patterns ejector pin structure among injection mold.
Background
An injection mold is a tool for producing plastic products; and is also a tool for giving the plastic product complete structure and accurate dimension. Injection molding is a process used to mass produce parts of some complex shapes. Specifically, the plastic melted by heating is injected into a mold cavity from an injection molding machine at high pressure, and a formed product is obtained after cooling and solidification.
During the injection molding process, the molded injection molded part needs to be ejected out of the mold cavity by using an ejector rod. In the existing ejector rod structure, the ejector rod has poor ejection effect on the injection molding part with the opposite-surface structure, namely, the injection molding part is subjected to uneven pressure of the ejector rod in the ejection process, so that the injection molding part is easy to deform, and the ejection quality of the injection molding part is influenced.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides an opposite sex's face integral type drawing of patterns ejector pin structure among injection mold makes the injection molding even at the in-process atress of drawing of patterns, is stabilized ejecting, improves the quality of injection molding drawing of patterns.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides an opposite sex's face integral type drawing of patterns ejector pin structure among injection mold, characterized by: comprises a top plate component, a mandril component and a die core;
the die core is provided with a convex die and a plurality of top holes, the die core is provided with a central forming area, a side forming area and an extension forming area, the top holes respectively correspond to the central forming area, the side forming area and the extension forming area, the front end of each top hole penetrates through the surface of the convex die, and the rear end of each top hole penetrates through the back of the die core;
the ejector rod component is internally provided with a central ejector rod, a side ejector rod and an extension ejector rod, the central ejector rod, the side ejector rod and the extension ejector rod are respectively distributed in the top holes of the central forming area, the side forming area and the extension forming area, and the lower end of the ejector rod is fixed on the top plate component.
Preferably, the diameter of the central ejector rod is larger than the diameters of the side ejector rods and the extension ejector rods.
Preferably, the side ejector rod and the extension ejector rod sequentially comprise a positioning section, a reinforcing section and an ejection section along the axial direction of the side ejector rod and the extension ejector rod, and the diameters of the positioning section, the reinforcing section and the ejection section are sequentially reduced.
Preferably, the male die and the ejector rod assembly are provided with a plurality of male die and ejector rod assemblies, and the male die and the ejector rod assemblies are arranged in a one-to-one correspondence manner.
Preferably, the top plate assembly comprises a front top plate and a rear top plate which are attached to each other in a front-rear direction, and the lower end of the ejector rod penetrates through the front top plate and is fixed between the front top plate and the rear top plate.
The utility model has the advantages that: through the central ejector rod, the side ejector rods and the extension ejector rods, all parts of the injection molding part are stressed uniformly in the demolding process and are stably ejected out, and the demolding quality of the injection molding part is improved.
Drawings
Fig. 1 is a schematic view of a mold core according to the present embodiment;
FIG. 2 is a schematic view of an injection molded part provided in the present embodiment;
FIG. 3 is a schematic view of a top plate assembly and a lift pin assembly provided in the present embodiment;
fig. 4 is a schematic view of the side lift pins or the extension lift pins provided in this embodiment.
Detailed Description
The integrated demoulding ejector rod structure with opposite surfaces in the injection mould of the utility model is further described with reference to fig. 1 to 4.
The utility model provides an opposite sex's face integral type drawing of patterns ejector pin structure among injection mold, characterized by: comprises a top plate component 4, a mandril component 5 and a die core 1.
The die core 1 is provided with a male die 2 and a plurality of top holes 24, the male die 2 is provided with a central forming area 21, a side forming area 22 and an extension forming area 23, the top holes 24 respectively correspond to the central forming area 21, the side forming area 22 and the extension forming area 23, the front ends of the top holes 24 penetrate through the surface of the male die 2, and the rear ends of the top holes 24 penetrate through the back surface of the die core 1; it should be noted that: the extension forming region 23 is a forming region of the connection lug 231 or the connection edge on the injection-molded part 3.
The ejector rod component 5 is provided with a plurality of central ejector rods 53, a plurality of side ejector rods 52 and a plurality of extension ejector rods 51, the central ejector rods 53, the side ejector rods 52 and the extension ejector rods 51 are respectively distributed in the central forming area 21, the side forming area 22 and the top holes 24 of the extension forming area 23, and the lower ends of the ejector rods are abutted against the top plate component 4.
Through the technical scheme, all parts of the injection molding part 3 are stressed uniformly in the demolding process and are stably ejected out through the central ejector rod 53, the side ejector rods 52 and the extension ejector rod 51, and the demolding quality of the injection molding part 3 is improved.
The embodiment is further configured as follows: the diameter of the central post rod 53 is larger than the diameters of the side post rods 52 and the extension post rods 51. Injection molding 3 is at the in-process of drawing of patterns, and the central ejector pin provides main jacking force, and limit position ejector pin and extension position ejector pin provide supplementary jacking force to guarantee the homogeneity of injection molding atress, consequently the ejector pin structural strength of central shaping district 21 needs suitably to strengthen, with providing stable jacking force, with the balance of realizing each shaping district jacking force.
The embodiment is further configured as follows: the side ejector rod 52 and the extension ejector rod 51 sequentially comprise a positioning section 513, a reinforcing section 512 and an ejection section 511 along the axial direction, and the diameters of the positioning section 513, the reinforcing section 512 and the ejection section 511 are sequentially reduced. The locating section is matched in the top plate assembly 4 and used for fixing the ejector rod, the reinforcing section is used for enhancing the structural strength of the ejector rod so as to provide stable ejecting force, and the ejector rod enters the male die 2 so as to eject the injection molding part 3.
The embodiment is further configured as follows: the male die 2 and the ejector rod assemblies 5 are four in number and are arranged in a one-to-one correspondence mode. Four injection molding 3 of ability simultaneous molding and simultaneously ejecting with these four injection molding 3 integral types under this structure improve the efficiency of moulding plastics.
The embodiment is further configured as follows: the top plate assembly 4 includes a front top plate 41 and a rear top plate 42 attached to each other in a front-rear direction, and the lower end of the post rod passes through the front top plate 41 and is fixed between the front top plate 41 and the rear top plate 42. The back surface of the front top plate 41 is provided with a counter bore, and the positioning section of the ejector rod is matched in the counter bore and is axially limited by the rear top plate 42; the reinforcing section passes through the front top plate 41 and is matched with the front top plate 41 to ensure the overall stability of the ejector rod.
Unless otherwise specified, in the present invention, if the terms "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are used for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.
Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass both fixed and removable connections, or integral connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (5)

1. The utility model provides an opposite sex's face integral type drawing of patterns ejector pin structure among injection mold, characterized by: comprises a top plate component, a mandril component and a die core;
the die core is provided with a convex die and a plurality of top holes, the die core is provided with a central forming area, a side forming area and an extension forming area, the top holes respectively correspond to the central forming area, the side forming area and the extension forming area, the front end of each top hole penetrates through the surface of the convex die, and the rear end of each top hole penetrates through the back of the die core;
the ejector rod component is internally provided with a central ejector rod, a side ejector rod and an extension ejector rod, the central ejector rod, the side ejector rod and the extension ejector rod are respectively distributed in the top holes of the central forming area, the side forming area and the extension forming area, and the lower end of the ejector rod is fixed on the top plate component.
2. The opposite-surface integrated demoulding ejector rod structure in the injection mould as claimed in claim 1, wherein: the diameter of the central ejector rod is larger than the diameters of the side ejector rods and the extension ejector rods.
3. The opposite-surface integrated demoulding ejector rod structure in the injection mould as claimed in claim 2, wherein: the side ejector rod and the extension ejector rod sequentially comprise a positioning section, a reinforcing section and an ejection section along the axial direction of the side ejector rod and the extension ejector rod, and the diameters of the positioning section, the reinforcing section and the ejection section are sequentially reduced.
4. The opposite-surface integrated demoulding ejector rod structure in the injection mould as claimed in claim 1, wherein: the male die and the ejector rod assemblies are provided with a plurality of male die and ejector rod assemblies which are arranged in a one-to-one correspondence mode.
5. The opposite-surface integrated demoulding ejector rod structure in the injection mould as claimed in claim 1, wherein: the roof subassembly is including the preceding roof and the back roof of laminating around, and the lower extreme of ejector pin passes preceding roof to be fixed in between preceding roof and the back roof.
CN201921487411.2U 2019-09-07 2019-09-07 Opposite-surface integrated demoulding ejector rod structure in injection mould Active CN210617192U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921487411.2U CN210617192U (en) 2019-09-07 2019-09-07 Opposite-surface integrated demoulding ejector rod structure in injection mould

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921487411.2U CN210617192U (en) 2019-09-07 2019-09-07 Opposite-surface integrated demoulding ejector rod structure in injection mould

Publications (1)

Publication Number Publication Date
CN210617192U true CN210617192U (en) 2020-05-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921487411.2U Active CN210617192U (en) 2019-09-07 2019-09-07 Opposite-surface integrated demoulding ejector rod structure in injection mould

Country Status (1)

Country Link
CN (1) CN210617192U (en)

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