CN217531706U - Injection three-plate mold - Google Patents
Injection three-plate mold Download PDFInfo
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- CN217531706U CN217531706U CN202221681324.2U CN202221681324U CN217531706U CN 217531706 U CN217531706 U CN 217531706U CN 202221681324 U CN202221681324 U CN 202221681324U CN 217531706 U CN217531706 U CN 217531706U
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- ejector
- template
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Abstract
The utility model relates to an injection three-plate mold, which comprises an upper fixed plate, a stripper plate, an upper template, a lower template, a support plate, a backing plate and a base which are arranged from top to bottom in sequence; a pull rod guide rail is arranged between the upper template and the support plate in a penetrating way; a pull rod is arranged in the pull rod guide rail; a top column is arranged right below the pull rod; the ejector columns are arranged on the first ejector plate, the second ejector plate and the base in a penetrating mode; a top pull rod penetrates among the lower template, the supporting plate and the first ejector plate; the upper end face of the top pull rod props against the lower surface of the upper template, and the lower end face of the top pull rod props against the upper surface of the second ejector plate. The pull rod moves along the pull rod guide rail in a limiting mode, the lower die plate and the upper die plate are opened, die opening is achieved, the stripper plate and the upper die plate are opened, waste materials are separated from products, the first ejector plate moves along the ejector columns, and the ejector pins are pushed to eject the products; compared with the existing mode of using a spring, the whole die sinking process is accurately controlled, the problem of failure is not easy to occur, the reliability is high, and the quality of injection molding products is high.
Description
Technical Field
The utility model belongs to the technical field of the mould, concretely relates to three board mould moulds plastics.
Background
The three-plate mold is characterized in that the mold blank consists of a lower mold plate, an upper mold plate and a stripper plate, an injection product is positioned between the lower mold plate and the upper mold plate, and injection waste is positioned between the stripper plate and the upper mold plate. The opening sequence of the three-plate mold needs to be controlled for the purpose of releasing the injection product from the injection waste. When the mold is opened, the stripper plate and the upper template are opened firstly, the stripper plate pulls the waste to open the mold, so that the waste is separated from the product, and then the lower template and the upper template are opened to take out the product. When the die is closed, the die is closed according to the sequence that the lower template and the upper template are closed first, and then the stripper plate and the upper template are closed.
In the prior art, a spring is used for controlling the sequence of opening and closing the mold, the mode of opening and closing the mold is controlled by the spring to be greatly influenced by the performance of the spring, various problems can be caused by metal fatigue of the spring in a frequent high-strength use environment, the opening time of an upper template and the opening time of a lower template can be too early due to the performance reduction of the spring, and a gap can be generated between the upper template and the lower template due to the scalability of the spring after the mold is closed, so that the normal production of an injection molding product is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a three-plate mold moulds plastics for solve current three-plate mold and utilize unreliable problem behind the long-time use of spring control open and shut mould.
An injection three-plate mold comprising: the upper fixing plate, the stripper plate, the upper template, the lower template, the supporting plate, the base plate and the base are arranged from top to bottom in sequence; a first ejector pin plate and a second ejector pin plate are arranged between the base and the supporting plate; the first ejector pin plate and the second ejector pin plate are positioned in a space formed by the backing plate; a pull rod guide rail penetrates between the upper template and the support plate; the length of the pull rod guide rail is less than the sum of the thicknesses of the upper template, the lower template and the support plate; a pull rod is arranged in the pull rod guide rail; a top column is arranged right below the pull rod; the ejection column is arranged on the first ejector plate, the second ejector plate and the base in a penetrating manner; a top pull rod penetrates among the lower template, the supporting plate and the first ejector plate; the upper end face of the ejector pull rod props against the lower surface of the upper template, and the lower end face of the ejector pull rod props against the upper surface of the second ejector plate.
Wherein the upper end surface of the pull rod is propped against the lower surface of the stripper plate; the lower end face of the pull rod is provided with a clamping block; the diameter of the clamping block is larger than that of the pull rod.
A limiting block is fixed on the side wall between the upper template and the base plate; and a first limit nut and a second limit nut are arranged in the limit block, wherein the first limit nut and the second limit nut are respectively fixed on the upper template and the lower template.
A plurality of thimbles are arranged between the first thimble plate and the support plate; the upper end face of the ejector pin props against the lower surface of the lower template, and the lower end face of the ejector pin props against the upper surface of the second ejector plate.
Wherein, the pull rod is provided with 4 at least and evenly sets up in the extreme angle department of mould.
Wherein a guide post hole is arranged between the upper fixing plate and the supporting plate in a penetrating way; a guide pillar is arranged in the guide pillar hole; and a guide sleeve is sleeved outside the guide post.
The guide sleeve comprises a first guide sleeve and a second guide sleeve; the first guide sleeve is arranged in the stripper plate; the second guide sleeve is arranged in the upper template and the lower template.
Wherein, the upper fixing plate is provided with a positioning ring and an injection molding opening.
And a plurality of cooling pipes leading to the injection molding position are arranged on the side walls of the upper template and the lower template.
The utility model discloses following beneficial effect has: the pull rod moves along the pull rod guide rail in a limiting mode, the lower die plate and the upper die plate are opened, die opening is achieved, the stripper plate and the upper die plate are opened, waste materials are separated from products, the first ejector plate moves along the ejector columns, and the ejector pins are pushed to eject the products; compared with the existing mode of using a spring, the whole die sinking process is accurately controlled, the problem of failure is not easy to occur, the reliability is high, and the quality of injection molding products is high.
Drawings
FIG. 1 is a schematic structural view of an injection three-plate mold according to the present invention;
FIG. 2 is a top view of an injection three-plate mold of the present invention;
FIG. 3 is a cross-sectional view taken along the line A in FIG. 2;
fig. 4 is a sectional view taken in the direction B of fig. 2.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," "two end," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed," "connected," "fixed," and "screwed" are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
An injection three-plate mold comprising: the device comprises an upper fixing plate 1, a stripper plate 2, an upper template 3, a lower template 4, a supporting plate 5, a base plate 6 and a base 7 which are arranged from top to bottom in sequence; a first ejector plate 8 and a second ejector plate 9 are arranged between the base 7 and the supporting plate 5; the first ejector plate 8 and the second ejector plate 9 are positioned in a space formed by the backing plate 6; a pull rod guide rail 10 penetrates between the upper template 3 and the supporting plate 5; the length of the pull rod guide rail 10 is smaller than the sum of the thicknesses of the upper template 3, the lower template 4 and the support plate 5; a pull rod 11 is arranged in the pull rod guide rail 10; a top column 12 is arranged under the pull rod 11; the ejection column 12 is arranged on the first ejector plate 8, the second ejector plate 9 and the base 7 in a penetrating manner; a top pull rod 13 penetrates among the lower template 4, the supporting plate 5 and the first ejector plate 8; the upper end surface of the top pull rod 13 is propped against the lower surface of the upper template 3, and the lower end surface is propped against the upper surface of the second ejector plate 9. The pull rod 11 moves along the pull rod guide rail 10 in a limiting mode, the lower template 4 and the upper template 3 are opened, mold opening is achieved, the stripper plate 2 and the upper template 3 are opened, waste materials are stripped from products, the first ejector plate 8 moves along the ejector columns 12, and the ejector pins 23 are pushed to eject the products; compared with the existing mode of using a spring, the whole die opening process is accurately controlled, the problem of failure is not easy to occur, the reliability is high, and the quality of injection molding products is high.
Wherein, the upper end surface of the pull rod 11 is propped against the lower surface of the stripper plate 2; a clamping block 14 is arranged on the lower end face of the pull rod 11; the diameter of the catch block 14 is greater than the diameter of the pull rod. In this embodiment, a position-limiting block 14 is disposed on the pull rod 11, and in order to cooperate with the pull rod 11, the diameter of the lower end of the pull rod guide rail 10 is larger than that of the upper end, that is, the lower end of the pull rod guide rail 10 is matched with the position-limiting block 14 to slide, and the upper end of the pull rod guide rail 10 is matched with the part with the smaller diameter of the pull rod 11; under the drive of a power system, the parting surfaces of the lower template 4 and the upper template 3 are opened, the pull rod slides in the pull rod guide rail 10 until the clamping block 14 touches the part with smaller diameter at the upper end part of the pull rod 11, and the upper end part of the thimble 23 jacks up a product to finish stripping.
Wherein, a limiting block 15 is fixed on the side wall between the upper template 3 and the backing plate 6; and a first limit nut 16 fixed on the upper template 3 and a second limit nut 17 fixed on the lower template 4 are arranged in the limit block 15 respectively. The limiting block 15 is used for limiting the pushing distance of the top pull rod 13; and the power system controls the top pull rod 13 to move, and the upper end part of the top pull rod 13 jacks up the upper template 3 to realize die sinking.
Wherein, a plurality of thimbles 23 are arranged between the first thimble plate 8 and the supporting plate 5; the upper end face of the thimble 23 props against the lower surface of the lower template 4, and the lower end face of the thimble props against the upper surface of the second thimble plate 9.
Wherein, the pull rods 11 are at least provided with 4 pull rods and are uniformly arranged at the end corners of the die; the top pull rods 13 are at least provided with 4 and are uniformly arranged at the corners of the die. In order to ensure uniform stress of stripping and die sinking and ensure product quality, at least each end is provided with a pull rod 11 and a top pull rod 13.
Wherein, a guide post hole is arranged between the upper fixing plate 1 and the supporting plate 5 in a penetrating way; a guide post 18 is arranged in the guide post hole; a guide sleeve is sleeved outside the guide post 18. The guide post 18 is used for supporting and connecting the upper fixing plate 1, the stripper plate 2, the upper template 3, the lower template 4 and the support plate 5; in the process of stripping and opening the die, the guide post slides in the guide sleeve.
Wherein, the guide sleeve comprises a first guide sleeve 19 and a second guide sleeve 20; the first guide sleeve 19 is arranged in the stripper plate 2; the second guide sleeve 20 is arranged in the upper template 3 and the lower template 4. In order to match stripping and die sinking for twice parting, a first guide sleeve 19 and a second guide sleeve 20 are respectively arranged to match the motion of the guide post 18.
Wherein, the upper fixing plate 1 is provided with a positioning ring 21 and an injection molding opening 22.
The side walls of the upper template 3 and the lower template 4 are provided with a plurality of cooling pipes 24 leading to the injection molding position, and the cooling pipes are divided into cooling pipe inlets and cooling pipe outlets.
The details of the present invention are not described in detail, but are well known to those skilled in the art.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (9)
1. An injection three-plate mold, comprising:
the upper fixing plate, the stripper plate, the upper template, the lower template, the supporting plate, the base plate and the base are sequentially arranged from top to bottom;
a first ejector pin plate and a second ejector pin plate are arranged between the base and the supporting plate;
the first ejector pin plate and the second ejector pin plate are positioned in a space formed by the backing plate;
a pull rod guide rail penetrates between the upper template and the support plate;
the length of the pull rod guide rail is less than the sum of the thicknesses of the upper template, the lower template and the support plate;
a pull rod is arranged in the pull rod guide rail;
a top column is arranged right below the pull rod;
the ejection column is arranged on the first ejector plate, the second ejector plate and the base in a penetrating manner;
a top pull rod penetrates among the lower template, the supporting plate and the first ejector plate;
the upper end face of the ejector pull rod props against the lower surface of the upper template, and the lower end face of the ejector pull rod props against the upper surface of the second ejector plate.
2. An injection three-plate mold according to claim 1,
the upper end surface of the pull rod props against the lower surface of the stripper plate;
the lower end face of the pull rod is provided with a clamping block;
the diameter of the clamping block is larger than that of the pull rod.
3. An injection three-plate mold according to claim 1,
a limiting block is fixed on the side wall between the upper template and the base plate;
and a first limit nut and a second limit nut which are respectively fixed on the upper template and the lower template are arranged in the limit block.
4. An injection three-plate mold according to claim 1,
a plurality of thimbles are arranged between the first thimble plate and the support plate;
the upper end face of the ejector pin props against the lower surface of the lower template, and the lower end face of the ejector pin props against the upper surface of the second ejector plate.
5. An injection three-plate mold according to claim 1,
the pull rods are at least provided with 4 pull rods and are uniformly arranged at the corners of the die.
6. An injection three-plate mold according to claim 1,
a guide post hole is arranged between the upper fixing plate and the supporting plate in a penetrating manner;
a guide pillar is arranged in the guide pillar hole;
the guide post is sleeved with a guide sleeve.
7. An injection three-plate mold according to claim 6,
the guide sleeve comprises a first guide sleeve and a second guide sleeve;
the first guide sleeve is arranged in the stripper plate;
the second guide sleeve is arranged in the upper template and the lower template.
8. An injection three-plate mold according to claim 1,
the upper fixing plate is provided with a positioning ring and an injection molding opening.
9. An injection three-plate mold according to claim 1,
and a plurality of cooling pipes leading to the injection molding position are arranged on the side walls of the upper template and the lower template.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221681324.2U CN217531706U (en) | 2022-07-01 | 2022-07-01 | Injection three-plate mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221681324.2U CN217531706U (en) | 2022-07-01 | 2022-07-01 | Injection three-plate mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217531706U true CN217531706U (en) | 2022-10-04 |
Family
ID=83420902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221681324.2U Active CN217531706U (en) | 2022-07-01 | 2022-07-01 | Injection three-plate mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217531706U (en) |
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2022
- 2022-07-01 CN CN202221681324.2U patent/CN217531706U/en active Active
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