CN213260863U - Multi-head type hot runner nozzle - Google Patents
Multi-head type hot runner nozzle Download PDFInfo
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- CN213260863U CN213260863U CN202021376070.4U CN202021376070U CN213260863U CN 213260863 U CN213260863 U CN 213260863U CN 202021376070 U CN202021376070 U CN 202021376070U CN 213260863 U CN213260863 U CN 213260863U
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- hot runner
- shell
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- cavity
- runner nozzle
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Abstract
The utility model discloses a multi-head hot runner nozzle, which comprises a hot runner main body; the flow divider is composed of a flat columnar hollow shell and an inner barrel coaxially fixed in the shell, the inner barrel divides the interior of the shell into a middle columnar cavity and an annular cavity surrounding the columnar cavity, three partition plates are arranged in the annular cavity and divide the interior of the annular cavity into three fan-shaped cavities, flow dividing ports respectively communicated with the three fan-shaped cavities are formed in the barrel wall of the inner barrel, a valve structure is arranged on each flow dividing port, and a pouring gate is arranged at the bottom of each fan-shaped cavity; three spray pipes are arranged and are respectively connected to the pouring gates at the bottoms of the fan-shaped cavities; a nozzle head provided at the lower end of each lance. The hot runner nozzle is simple in structure, convenient to operate, small in technical difficulty, easy to manufacture and low in production cost.
Description
Technical Field
The utility model relates to a hot runner technical field, concretely relates to bull formula hot runner nozzle.
Background
The hot runner system generally comprises a hot nozzle, a flow distribution plate, a temperature control box, accessories and the like, wherein the hot nozzle generally comprises two types: the hot nozzle forms directly determine the selection of the hot runner system and the manufacture of the mold, so the hot runner system is divided into the open hot runner system and the needle valve hot runner system correspondingly, the open hot nozzle and the needle valve hot runner system are used as a common part of an injection mold system, the plastic in a runner and a sprue is ensured to be kept in a molten state by a heating method, a heating rod and a heating ring are arranged near or in the center of the runner, the whole runner from an injection molding machine nozzle outlet to the sprue is in a high-temperature state, the plastic in the runner is kept molten, the runner does not need to be opened to take out the condensate after the machine is stopped, and the runner is heated to the required temperature when the machine is restarted, so the demand on the multi-head hot runner nozzle is increased day by day.
Traditional hot runner nozzle generally is single spray tube, and it is inefficient to mould plastics, arranges the unable suitable for of nearer mould of position to the product, and the bull formula hot runner nozzle structure that appears on the market at present is fixed, can not freely switch single mode and spout the mode more, and its application scope is lower, is unfavorable for using widely.
In order to solve the above problem, utility model patent application No. 201820634438.9 provides a bull formula hot runner nozzle, it drives a plurality of separation blade actions through adding motor and the gear structure of establishing, block a shower nozzle and block switching between a plurality of shower nozzles, thereby realize singly spouting and spout the switching of mode more, this structure has improved hot runner nozzle's accommodation, but its structure is too complicated, can make product die sinking manufacturing cost promote by a wide margin, in addition, set up motor and gear structure in the hot runner, the technical degree of difficulty is big, can further improve product cost, therefore, it is necessary to propose further improvement.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a bull formula hot runner nozzle for solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a multi-headed hot runner nozzle comprising:
a hot runner main body;
the flow divider is composed of a flat columnar hollow shell and an inner barrel coaxially fixed in the shell, the inner barrel divides the interior of the shell into a middle columnar cavity and an annular cavity surrounding the columnar cavity, three partition plates are arranged in the annular cavity and divide the interior of the annular cavity into three fan-shaped cavities, flow dividing ports respectively communicated with the three fan-shaped cavities are formed in the barrel wall of the inner barrel, a valve structure is arranged on each flow dividing port, and a pouring gate is arranged at the bottom of each fan-shaped cavity;
three spray pipes which are respectively connected to the sprue at the bottom of each fan-shaped cavity;
a nozzle tip disposed at a lower end of each of the nozzles.
Preferably, for the multi-headed hot runner nozzle, the valve structure comprises:
the mandrel comprises a handle end and a shaft end, the handle end is positioned at the outer top of the shell, and the shaft end is axially inserted into the shell, passes through the middle of the shunt port and is rotatably fixed through shaft sleeves at the bottom and the top in the shell;
the arc-shaped baffle plate is identical to the shunt opening in shape and size, covers the shunt opening, is fixed to the shaft end of the mandrel, and is driven to rotate by the mandrel.
Preferably, for the multi-head hot runner nozzle, a sealing strip is arranged on the contact surface of the arc baffle and the branch opening of the branch opening.
Preferably, for the multi-head hot runner nozzle, the side part of the mandrel shank end is vertically connected with a limiting rod, two limiting blocks are arranged at the top of the shell beside each mandrel shank end, the limiting rods are located between the two limiting blocks, and the swinging range of the limiting rods is limited by the limiting blocks.
Preferably, for the multi-head hot runner nozzle, embedded magnetic blocks are arranged on the contact points of the limiting block and the limiting rod.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a bull formula hot runner nozzle, when using, the molten fluid of hot runner lets in the column cavity of shunt, and the diffluence pass on the rethread inner tube shunts each fan-shaped cavity in, finally through the spray tube blowout of each fan-shaped cavity bottom, through the selective valve structure of opening on each diffluence pass, can realize singly spouting and spout the switching of mode more, makes the application scope of product wider. Compared with the hot runner nozzle provided in the original application, the hot runner nozzle is simple in structure, convenient to operate, small in technical difficulty, easy to manufacture and low in production cost.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the flow divider of the present invention;
fig. 3 is a top view of the present invention;
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.
Referring to fig. 1-3, the present invention provides a technical solution: a multi-headed hot runner nozzle comprising:
a hot runner main body 1;
the flow divider comprises a flat columnar hollow shell 2 and an inner barrel 3 coaxially fixed in the shell 2, the inner part of the shell 2 is divided into a middle columnar cavity and an annular cavity surrounding the columnar cavity through the inner barrel 3, three partition plates 4 are arranged in the annular cavity and divide the inner part of the annular cavity into three fan-shaped cavities, the barrel wall of the inner barrel 3 is provided with a flow dividing port respectively communicated with the three fan-shaped cavities, each flow dividing port is provided with a valve structure, and the bottom of each fan-shaped cavity is provided with a pouring gate 5;
three spray pipes 6 which are respectively connected to the sprue 5 at the bottom of each fan-shaped cavity;
a nozzle head 7 provided at the lower end of each of said nozzles 6.
Among the above-mentioned structure, hot runner 1's molten fluid lets in the column cavity of shunt, and in the diffluence mouth of rethread inner tube 3 shunted each fan-shaped cavity, finally spout through the spray tube 6 of each fan-shaped cavity bottom, through the selective valve structure of opening on each diffluence mouth, can realize singly spouting and spout the switching of mode more, make the application scope of product wider.
In another embodiment, the valve structure includes:
the mandrel 8 comprises a handle end and a shaft end, the handle end is positioned at the outer top of the shell 2, and the shaft end is axially inserted into the shell 2, penetrates through the middle of the flow dividing port and is rotatably fixed through shaft sleeves at the bottom and the top in the shell 2;
the arc-shaped baffle 9 is identical to the shunt opening in shape and size, covers the shunt opening, is fixed to the shaft end of the mandrel 8, and is driven by the mandrel 8 to rotate by the arc-shaped baffle 9.
This valve structure can be convenient realization in the outside of shell 2 and open and close the operation, when will open or close certain valve structure wherein, rotates the handle end of dabber 8, drives cowl 9 rotatory, makes cowl shift up from the diffluence pass and can cover the diffluence pass can.
In another embodiment, a sealing strip is arranged on the contact surface of the arc-shaped baffle 9 and the flow dividing port of the flow dividing port.
In another embodiment, a limiting rod 10 is vertically connected to a side portion of the handle end of the mandrel 8, two limiting blocks 11 are respectively arranged at the top of the housing 2 beside each handle end of the mandrel 8, the limiting rod 10 is located between the two limiting blocks 11, and the swing range of the limiting rod 10 is limited by the limiting blocks 11.
As shown in fig. 3, for each valve structure, two limiting blocks 11 represent a valve opening position and a valve closing position respectively, the valve structure is in the opening position when the core shaft 8 is rotated until the limiting rod 10 abuts against one of the limiting blocks 11, the valve structure is in the closing position when the core shaft 8 is rotated until the limiting rod 10 abuts against the other limiting block 11, and after the product is manufactured, the opening mark and the closing mark are added at the two limiting blocks 11 respectively.
In another embodiment, the limit block 10 and the limit rod 11 are provided with embedded magnetic blocks at their contact points. When the limiting rod 11 and the limiting block 10 are abutted, the magnetic blocks are attracted to keep the abutting state and locked, so that the valve structure is locked in an opening state or a closing state.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A multi-headed hot runner nozzle, comprising:
a hot runner main body;
the flow divider is composed of a flat columnar hollow shell and an inner barrel coaxially fixed in the shell, the inner barrel divides the interior of the shell into a middle columnar cavity and an annular cavity surrounding the columnar cavity, three partition plates are arranged in the annular cavity and divide the interior of the annular cavity into three fan-shaped cavities, flow dividing ports respectively communicated with the three fan-shaped cavities are formed in the barrel wall of the inner barrel, a valve structure is arranged on each flow dividing port, and a pouring gate is arranged at the bottom of each fan-shaped cavity;
three spray pipes which are respectively connected to the sprue at the bottom of each fan-shaped cavity;
a nozzle tip disposed at a lower end of each of the nozzles.
2. The multi-headed hot runner nozzle according to claim 1 wherein the valve structure comprises:
the mandrel comprises a handle end and a shaft end, the handle end is positioned at the outer top of the shell, and the shaft end is axially inserted into the shell, passes through the middle of the shunt port and is rotatably fixed through shaft sleeves at the bottom and the top in the shell;
the arc-shaped baffle plate is identical to the shunt opening in shape and size, covers the shunt opening, is fixed to the shaft end of the mandrel, and is driven to rotate by the mandrel.
3. The multi-headed hot runner nozzle according to claim 2 wherein a sealing strip is provided on the contact surface of the curved baffle with the diverging port of the diverging port.
4. The multi-headed hot runner nozzle according to claim 2, wherein a stop rod is vertically connected to the side of the mandrel shank, two stop blocks are provided at the top of the housing beside each mandrel shank, the stop rod is located between the two stop blocks, and the stop blocks limit the swing range of the stop rod.
5. The multi-headed hot runner nozzle of claim 4 wherein the stop block and the stop rod are provided with embedded magnetic blocks at points of contact with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021376070.4U CN213260863U (en) | 2020-07-14 | 2020-07-14 | Multi-head type hot runner nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021376070.4U CN213260863U (en) | 2020-07-14 | 2020-07-14 | Multi-head type hot runner nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213260863U true CN213260863U (en) | 2021-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021376070.4U Active CN213260863U (en) | 2020-07-14 | 2020-07-14 | Multi-head type hot runner nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213260863U (en) |
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2020
- 2020-07-14 CN CN202021376070.4U patent/CN213260863U/en active Active
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