CN213006314U - Injection molding nozzle reasonable in structure - Google Patents
Injection molding nozzle reasonable in structure Download PDFInfo
- Publication number
- CN213006314U CN213006314U CN202020989845.9U CN202020989845U CN213006314U CN 213006314 U CN213006314 U CN 213006314U CN 202020989845 U CN202020989845 U CN 202020989845U CN 213006314 U CN213006314 U CN 213006314U
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- nozzle
- piston
- hole
- piston plate
- injection molding
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Abstract
The utility model discloses an injection molding spray head with reasonable structure, which comprises a spray pipe and a nozzle, wherein the spray pipe is detachably and hermetically connected with the outlet of the spray pipe; a piston plate with a through hole is slidably sleeved in the spray pipe, a push rod is arranged at the center of the front end of the piston plate, and the front end of the push rod is in a conical shape; the outer wall of the spray pipe is provided with a through hole, and a piston rod with a piston block at the front end is arranged in the through hole; the front part of the through hole is provided with internal threads, the front part of the piston block is provided with external threads, and the piston block is in threaded connection with the through hole; the tail part of the piston block is hermetically connected with the through hole through a first sealing ring, and an elastic piece for pressing the piston plate to the nozzle direction is arranged on the piston plate; when the nozzle of the nozzle is not closed, the piston block presses the piston plate; when the nozzle of the nozzle is closed, the piston block does not press the piston plate, and the elastic piece presses the piston plate to slide towards the direction of the nozzle, so that the front end of the ejector rod presses against and seals the nozzle of the nozzle. The utility model discloses but has the quick closing spout, simple to use and convenient beneficial effect.
Description
Technical Field
The utility model relates to a shower nozzle especially indicates a rational in infrastructure shower nozzle of moulding plastics.
Background
The nozzle at the front part of the spray head of the injection molding machine is transited by a cylindrical cavity of the spray head of the injection molding machine through a conical column at present. After the nozzle of the existing injection molding machine injects the molten plastic into the injection mold, a small part of the molten plastic in the conveying pipe remains in the nozzle and overflows through the nozzle, and the ejection and closing of the molten plastic of the injection molding mold nozzle cannot be quickly controlled, so that the ejection amount of the molten plastic cannot be accurately controlled, and the quality of an injection molding product and the waste of the plastic are influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the blowout of the melting plastic of current unable quick control injection mould shower nozzle and close, lead to the unable ejection volume of accurately controlling the melting plastic, influence injection moulding product's quality and the problem of extravagant plastic, provide one kind can close spout, easy to use and convenient shower nozzle of moulding plastics fast.
The purpose of the utility model can be achieved by adopting the following technical scheme:
an injection molding spray head with a reasonable structure comprises a spray pipe and a spray nozzle, wherein the spray pipe is detachably and hermetically connected to an outlet of the spray pipe; a piston plate with a through hole is slidably sleeved in the spray pipe, a push rod is arranged at the center of the front end of the piston plate, and the front end of the push rod is in a conical shape; a through hole is formed in the outer wall of the spray pipe, and a piston rod with a piston block at the front end is arranged in the through hole; the front part of the through hole is provided with internal threads, the front part of the piston block is provided with external threads, and the piston block is in threaded connection with the through hole; the tail part of the piston block is hermetically connected with the through hole through a first sealing ring, and an elastic piece for pressing the piston plate to the nozzle direction is arranged on the piston plate; when the nozzle of the nozzle is not closed, the piston block presses the piston plate; when the nozzle of the nozzle is closed, the piston block does not press the piston plate, and the elastic piece presses the piston plate to slide towards the direction of the nozzle, so that the front end of the ejector rod presses against and seals the nozzle of the nozzle.
As a preferable scheme, the inner wall of the spray pipe is provided with a sliding groove, the circumference of the piston plate is provided with a protrusion, and the protrusion is slidably sleeved in the sliding groove.
Preferably, the through hole is communicated with the tail end of the sliding groove.
As a preferable scheme, a plurality of annular grooves are formed in the outer circumference of the tail part of the piston block, and the first sealing ring is sleeved in the annular grooves;
preferably, the first seal ring is made of steel.
Preferably, the nozzle is detachably connected to the outlet of the nozzle through a second sealing ring.
Preferably, the elastic member is a spring.
Implement the utility model discloses, following beneficial effect has:
the front part of the piston block of the piston rod of the utility model is connected with the through hole thread; in the normal injection molding process, when the nozzle of the nozzle is not required to be closed, the piston block presses the piston plate at the moment, so that the piston plate is fixed in the nozzle; at this time, the molten plastic flows toward the nozzle orifice of the nozzle through the perforations. When the nozzle of the nozzle needs to be closed, at the moment, only the piston rod needs to be rotated, the piston block does not press the piston plate, the movable plate slides towards the direction of the nozzle rapidly under the pushing of the elastic piece and the molten plastic, so that the front end of the ejector rod extends into the nozzle and seals the nozzle, the purpose of closing the nozzle rapidly is achieved, and the function of closing the nozzle rapidly is achieved. In the whole process, the piston plate is under the action of the elasticity of the elastic part and the thrust of the molten plastic, so that the ejector rod can quickly close the nozzle.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, 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 according to these drawings without creative efforts.
Fig. 1 is the internal structure schematic diagram of the injection molding nozzle with reasonable structure.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
Referring to fig. 1, the embodiment relates to a rational injection molding nozzle, which comprises a nozzle 1 and a nozzle 2, wherein the nozzle 1 is detachably and hermetically connected to an outlet of the nozzle 2; a piston plate 3 with a through hole 31 is slidably sleeved in the spray pipe 1, a push rod 32 is arranged at the center of the front end of the piston plate 3, and the front end of the push rod 32 is in a conical shape; a through hole 12 is formed in the outer wall of the spray pipe 1, and a piston rod 131 with a piston block 133 at the front end is arranged in the through hole 12; the front part of the through hole 12 is provided with internal threads, the front part of the piston block 133 is provided with external threads, and the piston block 133 is in threaded connection with the through hole 12; the tail part of the piston block 133 is hermetically connected with the through hole 12 through a first sealing ring 132, and the piston plate 3 is provided with an elastic part 33 for pressing the piston plate 3 towards the nozzle 2; when the nozzle opening 21 of the nozzle 2 is not closed, the piston block 133 presses the piston plate 3; when the spout 21 of the nozzle 2 is closed, the piston block 133 does not press the piston plate 3, and the elastic member 33 presses the piston plate 33 to slide in the direction of the nozzle 2, so that the tip of the stem 32 presses against the spout 21 of the nozzle 2 and seals the same.
The front part of the piston block 133 of the piston rod 131 is in threaded connection with the through hole 12; during normal injection molding, when the nozzle 21 of the nozzle 2 is not required to be closed, the piston block 133 presses the piston plate 3, so that the piston plate 3 is fixed in the nozzle 1; at this time, the molten plastic flows toward the nozzle opening 21 of the nozzle 2 through the through-hole 31. When the nozzle 21 of the nozzle 2 needs to be closed, at this time, only the piston rod 131 needs to be rotated to make the piston block 133 not press against the piston plate 3, and the piston plate 3 is pushed by the elastic force of the elastic member 33 and the molten plastic, the movable plate rapidly slides towards the direction of the nozzle 2, so that the front end of the ejector rod 32 extends into the nozzle 21 and seals the nozzle 21, the purpose of rapidly closing the nozzle 21 is achieved, and the function of rapidly closing the nozzle 21 is achieved. The piston plate 3 is acted by the elastic force of the elastic member 33 and the thrust force of the molten plastic during the whole process, so that the ejector rod 32 can rapidly close the nozzle. When the nozzle 21 needs to be opened again, the nozzle 2 is detached from the nozzle 1, the piston plate 3 is slid to the position of the through hole 12 by manually pushing the ejector rod 32, and then the piston rod 131 is rotated reversely to press the piston plate 3 by the piston rod 131.
The inner wall of the spray pipe 1 is provided with a sliding groove 14, the circumference of the piston plate 3 is provided with a protrusion 34, and the protrusion 34 is slidably sleeved in the sliding groove 14. Under the restriction of the protrusion 34 and the sliding groove 14, the piston plate 3 can only slide in the nozzle 1 along the length direction of the nozzle 1, and the problem of rotation and overturning of the piston plate 3 is prevented.
The through hole 12 communicates with the rear end of the chute 14. When the piston plate 3 is located at the rear end of the sliding slot 14, the piston rod 131 presses the protrusion 34 of the piston plate 3, that is, the piston plate 3 can be fixed at the rear end of the sliding slot 14 only by sliding the piston plate 3 to the rear end of the sliding slot 14 and then rotating the piston rod 131 to press the piston plate 3 with the piston rod 131.
A plurality of annular grooves are formed in the outer circumference of the tail of the piston block 133, and the first sealing ring 132 is sleeved in the annular grooves; the structure adopts the same connecting structure as that between the piston and the piston ring of the engine. The outer wall of the first sealing ring 132 presses against the through hole 12 to seal. The through hole 12 is a circular hole, and accordingly, the piston block 133 and the first seal ring 132 are also circular.
The first seal ring 132 is made of steel. The first seal ring 132 has wear-resistant characteristics and is made of the same material as a piston ring of an engine.
The nozzle 2 is detachably connected to the outlet 11 of the nozzle 1 via a second sealing ring 22. The molten plastic is prevented from leaking out of the gap between the nozzle 2 and the spout 1 by the sealing action of the second sealing ring 22.
The elastic member 33 is a spring. The elastic member 33 may be a solid cylinder. The solid cylinder is arranged in the chute 14. Of course, other materials with better elasticity are also suitable.
The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the invention, which is defined by the claims and their equivalents.
Claims (7)
1. An injection molding spray head with a reasonable structure is characterized by comprising a spray pipe and a spray nozzle, wherein the spray pipe is detachably and hermetically connected to an outlet of the spray pipe; a piston plate with a through hole is slidably sleeved in the spray pipe, a push rod is arranged at the center of the front end of the piston plate, and the front end of the push rod is in a conical shape; a through hole is formed in the outer wall of the spray pipe, and a piston rod with a piston block at the front end is arranged in the through hole; the front part of the through hole is provided with internal threads, the front part of the piston block is provided with external threads, and the piston block is in threaded connection with the through hole; the tail part of the piston block is hermetically connected with the through hole through a first sealing ring, and an elastic piece for pressing the piston plate to the nozzle direction is arranged on the piston plate; when the nozzle of the nozzle is not closed, the piston block presses the piston plate; when the nozzle of the nozzle is closed, the piston block does not press the piston plate, and the elastic piece presses the piston plate to slide towards the direction of the nozzle, so that the front end of the ejector rod presses against and seals the nozzle of the nozzle.
2. An injection molding nozzle with reasonable structure as claimed in claim 1, wherein the inner wall of the nozzle has a sliding groove, and the piston plate has a protrusion on its circumference, and the protrusion is slidably sleeved in the sliding groove.
3. An injection molding nozzle of reasonable construction as claimed in claim 2, wherein said through hole communicates with the trailing end of the runner.
4. An injection molding nozzle with a reasonable structure as claimed in claim 3, wherein the outer circumference of the tail of the piston block is provided with a plurality of annular grooves, and the first sealing ring is sleeved in the annular grooves.
5. A rational injection molding nozzle as claimed in claim 4, wherein the first seal ring is steel.
6. A rational injection molding nozzle as claimed in claim 5, wherein the nozzle is removably attached to the outlet of the nozzle by a second gasket.
7. A rational injection molding nozzle as claimed in claim 6, wherein the resilient member is a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020989845.9U CN213006314U (en) | 2020-06-01 | 2020-06-01 | Injection molding nozzle reasonable in structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020989845.9U CN213006314U (en) | 2020-06-01 | 2020-06-01 | Injection molding nozzle reasonable in structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213006314U true CN213006314U (en) | 2021-04-20 |
Family
ID=75490324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020989845.9U Active CN213006314U (en) | 2020-06-01 | 2020-06-01 | Injection molding nozzle reasonable in structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213006314U (en) |
-
2020
- 2020-06-01 CN CN202020989845.9U patent/CN213006314U/en active Active
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