CN216760697U - Valve needle combined mechanism - Google Patents
Valve needle combined mechanism Download PDFInfo
- Publication number
- CN216760697U CN216760697U CN202123295823.6U CN202123295823U CN216760697U CN 216760697 U CN216760697 U CN 216760697U CN 202123295823 U CN202123295823 U CN 202123295823U CN 216760697 U CN216760697 U CN 216760697U
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- valve needle
- hole
- shaped hole
- needle
- arc
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Abstract
The utility model discloses a valve needle combination mechanism which comprises a valve needle and a valve needle orientation plate, wherein a special-shaped hole is formed in the valve needle orientation plate, a special-shaped fixing part matched with the special-shaped hole is arranged at the tail part of the valve needle, the fixing part of the valve needle is tightly matched with the special-shaped hole, the special-shaped hole is used for limiting the degrees of freedom of the valve needle X, Y, Z in three directions, and the valve needle orientation plate is fixedly arranged on one end part of a piston rod of an oil cylinder. The valve needle combination mechanism provided by the utility model is additionally provided with the valve needle orientation plate, and the valve is matched with the shape of the special-shaped hole on the valve needle orientation plate, so that the degree of freedom of the valve needle X, Y, Z in three directions is limited, the valve needle is prevented from rotating, the valve needle is ensured to only move up and down under the driving of the piston rod of the oil cylinder, and the normal glue sealing of an injection molding product is further ensured.
Description
Technical Field
The utility model relates to the technical field of dies, in particular to a valve needle combination mechanism.
Background
The injection mold adopts the oil cylinder to drive the valve needle to perform core ejecting action, the traditional valve needle is fixed on the piston rod of the oil cylinder, but the valve needle not only moves up and down under the drive of the piston rod, but also rotates, so that the product sealing glue is not facilitated, and the surface defect of the product is caused.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model discloses a valve needle combination mechanism.
In order to achieve the purpose, the utility model is realized by the following technical scheme:
the utility model discloses a valve needle combination mechanism which comprises a valve needle and a valve needle orientation plate, wherein a special-shaped hole is formed in the valve needle orientation plate, a special-shaped fixing part matched with the special-shaped hole is arranged at the tail part of the valve needle, the fixing part of the valve needle is tightly matched with the special-shaped hole, the special-shaped hole is used for limiting the degrees of freedom of the valve needle X, Y, Z in three directions, and the valve needle orientation plate is fixedly arranged on one end part of a piston rod of an oil cylinder.
Preferably, the special-shaped hole comprises a flat hole and a first arc-shaped hole and a second arc-shaped hole which are respectively connected with two ends of the flat hole.
Further preferably, one end of the first arc-shaped hole is tangentially connected with one side of the flat hole, the other end of the first arc-shaped hole is connected with the end part of the other side of the flat hole, and a nearby arc section of the other end of the first arc-shaped hole exceeds the other side of the flat hole.
Further preferably, the second arc-shaped hole and the first arc-shaped hole are arranged in a mirror image mode.
Preferably, the valve needle orientation plate is further provided with a pin hole, and the valve needle orientation plate and the piston rod of the oil cylinder are positioned through a pin.
Preferably, the valve needle positioning plate is further provided with a countersunk hole for allowing a bolt to pass through, and the valve needle positioning plate is fixedly connected with the piston rod through the bolt.
Preferably, the valve needle orientation plate is provided with C-shaped corners at four corners.
Compared with the prior art, the utility model has at least the following advantages:
the valve needle combination mechanism provided by the utility model is additionally provided with the valve needle orientation plate, and the valve is matched with the shape of the special-shaped hole on the valve needle orientation plate, so that the degree of freedom of the valve needle X, Y, Z in three directions is limited, the valve needle is prevented from rotating, the valve needle is ensured to only move up and down under the driving of the piston rod of the oil cylinder, and the normal glue sealing of an injection molding product is further ensured.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below.
Fig. 1 is a schematic structural diagram of a valve pin orientation plate disclosed in an embodiment of the utility model;
fig. 2 is a schematic structural diagram of a valve needle disclosed in the embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments and the accompanying drawings so that those skilled in the art can implement the utility model with reference to the description.
Referring to fig. 1-2, an embodiment of the present invention discloses a valve needle combination mechanism, which includes a valve needle 2 and a valve needle orientation plate 1, wherein a special-shaped hole 11 is formed in the valve needle orientation plate 1, a special-shaped fixing portion adapted to the special-shaped hole 11 is formed at a tail portion of the valve needle, the fixing portion of the valve needle 2 is tightly fitted in the special-shaped hole 11, the special-shaped hole 11 is used for limiting degrees of freedom of the valve needle X, Y, Z in three directions, and the valve needle orientation plate 1 is fixedly disposed on an end portion of a piston rod of an oil cylinder.
Preferably, the irregularly-shaped holes 11 include a flat hole 111 and first and second arc- shaped holes 112 and 113 connected to both ends of the flat hole 111, respectively.
It is further preferable that one end of the first arc-shaped hole 112 is tangentially connected to one side of the flat hole 111, the other end of the first arc-shaped hole 112 is connected to the other end of the flat hole 111, and a nearby arc section of the other end of the first arc-shaped hole 112 goes beyond the other side of the flat hole 111.
It is further preferred that the second arcuate aperture 113 is a mirror image of the first arcuate aperture 112.
Preferably, the valve needle orientation plate 1 is further provided with a pin hole 12, and the valve needle orientation plate 1 and a piston rod of the oil cylinder are positioned through a pin.
Preferably, the valve needle positioning plate is further provided with a countersunk hole 13 for allowing a bolt to pass through, and the valve needle positioning plate is fixedly connected with the piston rod through the bolt.
Preferably, the valve pin orientation plate 1 is provided with C-corners 14 at four corners.
Through the technical scheme, the valve needle combination mechanism provided by the embodiment of the utility model is additionally provided with the valve needle orientation plate, and the valve is matched with the shape of the special-shaped hole on the valve needle orientation plate, so that the degrees of freedom of the valve needle X, Y, Z in three directions are limited, the valve needle is prevented from rotating, the valve needle is ensured to only move up and down under the drive of the piston rod of the oil cylinder, and the normal sealing of an injection molding product is further ensured.
Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A valve needle combined mechanism is characterized in that: including needle and needle orientation board, be provided with the dysmorphism hole on the needle orientation board, the afterbody of needle be provided with the dysmorphism fixed part that the dysmorphism hole suits, the fixed part tight fit of needle in the dysmorphism is downthehole, the dysmorphism hole is used for the restriction the degree of freedom of the three direction of needle X, Y, Z, needle orientation board sets firmly on a tip of the piston rod of hydro-cylinder.
2. The valve needle combination mechanism of claim 1, wherein: the special-shaped hole comprises a flat hole and a first arc-shaped hole and a second arc-shaped hole which are respectively connected with two ends of the flat hole.
3. A valve pin combination mechanism as claimed in claim 2, wherein: one end of the first arc-shaped hole is tangentially connected with one side of the flat hole, the other end of the first arc-shaped hole is connected with the end part of the other side of the flat hole, and the adjacent arc section of the other end of the first arc-shaped hole exceeds the other side of the flat hole.
4. A valve pin combination mechanism as claimed in claim 3, wherein: the second arc-shaped hole and the first arc-shaped hole are arranged in a mirror image mode.
5. The valve needle combination mechanism of claim 1, wherein: the needle orientation plate is further provided with a pin hole, and the needle orientation plate and a piston rod of the oil cylinder are positioned through a pin.
6. The valve needle combination mechanism of claim 1, wherein: the valve needle orientation plate is further provided with a counter bore allowing a bolt to pass through, and the valve needle orientation plate is fixedly connected with the piston rod through the bolt.
7. The valve needle combination mechanism of claim 1, wherein: and C angles are arranged at four corners of the valve needle orientation plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123295823.6U CN216760697U (en) | 2021-12-24 | 2021-12-24 | Valve needle combined mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123295823.6U CN216760697U (en) | 2021-12-24 | 2021-12-24 | Valve needle combined mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216760697U true CN216760697U (en) | 2022-06-17 |
Family
ID=81969650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123295823.6U Active CN216760697U (en) | 2021-12-24 | 2021-12-24 | Valve needle combined mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216760697U (en) |
-
2021
- 2021-12-24 CN CN202123295823.6U patent/CN216760697U/en active Active
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