CN215242560U - Open type hot nozzle for hot runner high-temperature material - Google Patents
Open type hot nozzle for hot runner high-temperature material Download PDFInfo
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- CN215242560U CN215242560U CN202121200249.9U CN202121200249U CN215242560U CN 215242560 U CN215242560 U CN 215242560U CN 202121200249 U CN202121200249 U CN 202121200249U CN 215242560 U CN215242560 U CN 215242560U
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Abstract
The utility model belongs to the technical field of the hot runner, especially, relate to an open heat is chewed for hot runner high temperature material. Overcomes the defects of two nozzle tip structures in the prior art, and provides an open type hot nozzle which meets the requirements of high-temperature, high-speed and high-pressure injection molding conditions. The hot-water tap comprises a hot tap body, wherein an integrated tap tip is arranged at one end of the hot tap body, an upper tap tip flow channel and a lower tap tip flow channel are arranged in the integrated tap tip, an embedded separation blade is movably arranged in the lower tap tip flow channel, and the embedded separation blade and the lower tap tip flow channel are formed into a lower tap tip flow channel I and a lower tap tip flow channel II. In order to prevent the wire drawing problem under the high temperature condition, an external insertion type inserted baffle is arranged, so that the wire drawing casting is prevented, and the glue can be better broken.
Description
Technical Field
The utility model belongs to the technical field of the hot runner, especially, relate to an open heat is chewed for hot runner high temperature material.
Background
The hot runner ensures that the plastic of the runner and the sprue is kept in a molten state by a heating method. Because the heating rod and the heating ring are arranged near or in the center of the runner, the whole runner from the nozzle outlet of the injection molding machine to the sprue is in a high-temperature state, so that the plastic in the runner is kept molten, the runner does not need to be opened after the machine is stopped, the solidified material is taken out, and the runner is heated to the required temperature when the machine is started again. The hot runner technology has the advantages of saving raw materials, reducing cost, shortening molding period, improving machine efficiency, improving surface quality and mechanical property of products, improving the surface attractiveness of injection molding products and the like. However, with the wide application of hot runner technology, various defects appear in different degrees in some high-quality plastic parts fields, the requirements for different products and mold structures are different, and in order to meet the higher requirements of customers on products and improve market competitiveness, hot runner systems are developing new structures to meet the requirements of customers on products.
The utility model relates to an open system to other high temperature material research and development such as PEI. PEI has strong high temperature stability, and even non-reinforced PEI still has good toughness and strength. Therefore, the PEI with excellent thermal stability can be used for manufacturing high-temperature heat-resistant devices. However, the injection molding conditions are very demanding, and the melting temperature: the common type material is 340-400C; the reinforced material is 340-415C; temperature of the die: 107-175 ℃, the temperature of the mold is recommended to be 140 ℃. Injection pressure: 700-1500 bar, the injection rate is also required to be as high as possible. Because of the excessively high forming temperature and high injection rate of PEI, the existing open type nozzle tip (see figure 5) is poor in forming, and the nozzle tip of CC nozzle tip is cracked whether being made of beryllium copper or tungsten steel; if a large nozzle type (see figure 6) with a horn mouth is used, the wire drawing and the casting can be carried out again. The open type hot nozzle for the hot runner high-temperature material is developed aiming at the problems.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to solve the technical problem that overcome two kinds of not enough that chew the pointed structure existence among the prior art, provide one kind and satisfy open heat of high temperature, high speed, high pressure condition of moulding plastics use and chew.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is: the utility model provides an open heat is chewed for hot runner high temperature material, includes that the heat chews the body, the one end that the body was chewed to the heat is equipped with the integral type and chews the point, the integral type is chewed and is equipped with in the point and chews sharp runner and chew sharp runner down, chew down the activity in the sharp runner and be equipped with insert separation blade down, insert separation blade and chew down sharp runner down and be formed with down and chew sharp runner I and chew down sharp runner II down.
In the open type hot nozzle for the hot runner high-temperature material, the end surface I and the end surface II of the embedded separation blade are in contact fit with the inner wall surface of the lower nozzle tip flow channel; the top surface and the bottom surface of the inserted baffle sheet are semi-arc surfaces.
The open type heat nozzle for the hot runner high-temperature material is characterized in that a heat nozzle flow channel and a nozzle tip cavity are sequentially arranged in the heat nozzle body from top to bottom, the integrated nozzle tip is installed in the nozzle tip cavity, and the heat nozzle flow channel is communicated with the upper nozzle tip flow channel.
The open type heat nozzle for the hot runner high-temperature material is characterized in that a cavity matching surface I, an internal thread and a cavity matching surface II are sequentially arranged on the inner wall of the nozzle tip cavity from top to bottom in the circumferential direction.
The open type hot nozzle for the hot runner high-temperature material is characterized in that a nozzle tip matching surface I, an external thread, a nozzle tip matching surface II and a spanner position are sequentially arranged on the circumferential direction of the integrated nozzle tip outer wall from top to bottom.
The open type hot nozzle for the hot runner high-temperature material is characterized in that the nozzle tip matching surface I and the chamber matching surface I are matched and concentrically assembled, the nozzle tip matching surface II and the chamber matching surface II are matched and concentrically assembled, and the external threads are matched and connected with the internal threads.
The open type heat nozzle for the hot runner high-temperature material is characterized in that a groove is formed in the periphery of the outer wall of the integrated nozzle tip and below the position of the wrench.
The integrated chewing tip comprises two functions of a chewing tip and a pressing cap and is formed integrally. Because the conventional open type nozzle tip three-hole glue is discharged, the strength of the nozzle tip is not enough under high temperature, high speed and high pressure, and the nozzle tip is often cracked; the strength of the integrated nozzle tip structure is improved, and the service life is longer.
The easy wire drawing of type structure is chewed to the conventionality, in order to avoid the wire drawing, designs an outer inserted formula insert separation blade in the tip is chewed to the integral type, and this insert separation blade processing simple to operate, can also be fine avoid the wire drawing, can not have the material handle at big mouth of a river in addition, save raw and other materials.
The utility model discloses an advantage that open heat is chewed for hot runner high temperature material is:
1. the utility model discloses an open heat is chewed for hot runner high temperature material is fit for open heat is chewed that high temperature, high speed, high pressure injection molding conditions such as PEI used, chews sharp structure as an organic whole with the pressure cap design with the tradition, goes out the glue mode and changes into step straight hole runner and goes out the glue, has increased intensity in the structure; under the conditions of high temperature, high speed and high pressure, the injection molding can be well performed, and the cracking of the nozzle tip is avoided. In order to prevent the wire drawing problem under the high temperature condition, an external insertion type inserted baffle is arranged, so that the wire drawing casting is prevented, and the glue can be better broken.
2. The utility model is used for hot runner high temperature material's open heat is chewed, and structural design is simple, and fine open of having avoided commonly used is chewed the point and is chewed the point with big water gap open and be used for the defect of moulding plastics of PEI material, and processing technology is simple and convenient, has reduced the conventional hot cost of chewing frequent maintenance. After the development and the production are finished, the material can be used for injection molding of PEI materials and also can be used for other high-speed, high-pressure and high-temperature materials needing injection molding. The special requirements of customers on the hot runner made of high-temperature materials are better met, and the hot runner technology of the department of China is led to develop a larger market.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the integrated nozzle tip of the present invention;
FIG. 3 is a schematic view of the structure of FIG. 2 from direction A-A according to the present invention;
FIG. 4 is a schematic structural view of the hot nozzle body of the present invention;
FIG. 5 is a schematic view of a prior art open nozzle tip structure in the background of the present invention;
fig. 6 is a schematic view of the large nozzle structure of the prior bell mouth of the present invention in the background art.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Embodiment 1, as shown in fig. 1 and 2, an open type hot nozzle for hot runner high-temperature materials comprises a hot nozzle body 1, an integrated nozzle tip 2 is arranged at one end of the hot nozzle body 1, an upper nozzle tip flow channel 3 and a lower nozzle tip flow channel 4 are arranged in the integrated nozzle tip 2, an insert type baffle 5 is movably arranged in the lower nozzle tip flow channel 4, and a lower nozzle tip flow channel i 41 and a lower nozzle tip flow channel ii 42 are formed by the insert type baffle 5 and the lower nozzle tip flow channel 4. The sizing material flowing through the lower nozzle tip flow passage 4 is divided into two paths to be output through the embedded type baffle 5, so that the sizing material can be prevented from being broken better in wire drawing and casting.
Example 2 as shown in fig. 2 and 3, in example 1, the end faces i 51 and ii 52 of the insert baffle 5 were in contact with the inner wall surface of the lower beak flow passage 4; the top surface and the bottom surface of the inserted baffle 5 are both semi-arc surfaces 53. The end face I51 and the end face II 52 can be in seamless fit with the inner wall surface of the lower beak tip flow passage 4, so that only two flow passages for the glue to pass through are arranged in the lower beak tip flow passage 4, namely the lower beak tip flow passage I41 and the lower beak tip flow passage II 42; the semi-circular surface 53 can better ensure the flow of the sizing material and is beneficial to glue breaking.
Example 4, as shown in fig. 4, based on example 3, the inner wall of beak tip chamber 7 is provided with a chamber matching surface i 71, an internal thread 72 and a chamber matching surface ii 73 in the order from top to bottom in the circumferential direction.
Embodiment 5, as shown in fig. 2, based on embodiment 4, the outer wall of the integrated beak tip 2 is provided with a beak tip matching surface i 21, an external thread 22, a beak tip matching surface ii 23 and a wrench position 24 from top to bottom in sequence in the circumferential direction.
Example 6, as shown in fig. 1, 2 and 4, on the basis of example 5, a beak tip matching surface I21 and a chamber matching surface I71 are matched and concentrically assembled, a beak tip matching surface II 23 and a chamber matching surface II 73 are matched and concentrically assembled, and the external thread 22 and the internal thread 72 are matched and connected. Can guarantee through four fitting surfaces and threaded connection mode that body 1 is chewed to heat and 2 installation reliability, leakproofness are chewed to the integral type, have improved injection molding quality and life.
Embodiment 7, as shown in fig. 1 and 2, on the basis of embodiment 6, a groove 8 is circumferentially formed in the outer wall of the integrated beak tip 2 below the spanner position 24. The groove 8 can prevent the matching surface between the outside of the nozzle tip and the mould from being too large, and cold materials are seriously caused by heat dissipation.
During installation, firstly, inserting the head end of a thermocouple into a thermocouple groove arranged on the hot nozzle body 1, and then winding a winding type strip heating wire in a heating wire groove arranged on the hot nozzle body 1; after the strip heating wire is wound, pressing a semicircular pressing line blocking piece on the hot nozzle body 1 to fix a thermocouple; the steps are all in the existing mode, and the steps are only required to be assembled conventionally and are not marked in the drawings of the specification. Secondly, the embedded separation blade 5 is installed into the integrated nozzle tip 2 after being processed; thirdly, screwing and fixing the integrated nozzle tip 2 provided with the inserted baffle 5 with the internal thread 72 of the hot nozzle body 1 through the external thread 22 arranged on the integrated nozzle tip, wherein a spanner position 24 arranged on the integrated nozzle tip 2 is used in the process; meanwhile, the integrated nozzle tip 2 is provided with a nozzle tip matching surface I21 and a nozzle tip matching surface II 23, and a cavity matching surface I71 and a cavity matching surface II 73 which are arranged on the hot nozzle body 1 are respectively assembled in a concentric matching mode, and guiding matching installation is completed. 2 anterior segment outsides of sharp are chewed to the integral type are equipped with recess 8, can prevent to chew the sharp outside too big with the mould fitting surface, and the heat dissipation seriously causes cold burden.
High-temperature rubber material enters an injection nozzle flow channel through the matching of a ball head of an injection molding machine and the ball head of the injection nozzle in the injection molding process, then enters each hot nozzle flow channel 6 through a flow dividing plate flow channel, then enters an upper nozzle tip flow channel 3 of an integrated nozzle tip 2, then enters a special step type circular straight hole gate, and when the rubber material flows into a lower nozzle tip flow channel 4, the rubber material is divided into two rubber material flows through the buffering of an embedded separation blade 5, and then enters a cavity from a lower nozzle tip flow channel I41 and a lower nozzle tip flow channel II 42 for injection molding.
The present invention has been described above by way of example with reference to the accompanying drawings, and it is to be understood that the specific implementations of the present invention are not limited to the above-described embodiments. The present invention can be modified or modified by those skilled in the art without departing from the technical idea of the present invention, and such modifications or modifications naturally fall within the scope of the present invention.
Claims (7)
1. An open type hot nozzle for hot material of a hot runner, which is characterized in that: the hot-water tap comprises a hot tap body (1), wherein one end of the hot tap body (1) is provided with an integrated tap tip (2), the integrated tap tip (2) is internally provided with an upper tap tip flow channel (3) and a lower tap tip flow channel (4), an embedded separation blade (5) is movably arranged in the lower tap tip flow channel (4), and the embedded separation blade (5) and the lower tap tip flow channel (4) are formed into a lower tap tip flow channel I (41) and a lower tap tip flow channel II (42).
2. The open heat nozzle for hot runner high temperature materials of claim 1, wherein: the end face I (51) and the end face II (52) of the inserted baffle plate (5) are in contact fit with the inner wall surface of the lower beak tip flow channel (4); the top surface and the bottom surface of the inserted baffle sheet (5) are both semi-arc surfaces (53).
3. The open heat nozzle for hot runner high temperature materials of claim 1, wherein: the hot nozzle body (1) is internally provided with a hot nozzle flow channel (6) and a nozzle tip chamber (7) from top to bottom in sequence, the integrated nozzle tip (2) is installed in the nozzle tip chamber (7), and the hot nozzle flow channel (6) is communicated with the upper nozzle tip flow channel (3).
4. The open heat nozzle for hot runner high temperature materials of claim 3, wherein: the inner wall of the mouth tip cavity (7) is circumferentially provided with a cavity matching surface I (71), an internal thread (72) and a cavity matching surface II (73) from top to bottom in sequence.
5. The open heat nozzle for hot runner high temperature materials of claim 4, wherein: the integrated nozzle tip (2) is provided with a nozzle tip matching surface I (21), an external thread (22), a nozzle tip matching surface II (23) and a wrench position (24) from top to bottom in sequence in the circumferential direction.
6. The open heat nozzle for hot runner high temperature materials of claim 5, wherein: the mouth tip matching surface I (21) and the chamber matching surface I (71) are matched and concentrically assembled, the mouth tip matching surface II (23) and the chamber matching surface II (73) are matched and concentrically assembled, and the external thread (22) is matched and connected with the internal thread (72).
7. The open heat nozzle for hot runner high temperature materials of claim 6, wherein: a groove (8) is formed in the outer wall of the integrated nozzle tip (2) and is located below the wrench position (24) in the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121200249.9U CN215242560U (en) | 2021-05-31 | 2021-05-31 | Open type hot nozzle for hot runner high-temperature material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121200249.9U CN215242560U (en) | 2021-05-31 | 2021-05-31 | Open type hot nozzle for hot runner high-temperature material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215242560U true CN215242560U (en) | 2021-12-21 |
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ID=79475266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121200249.9U Active CN215242560U (en) | 2021-05-31 | 2021-05-31 | Open type hot nozzle for hot runner high-temperature material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215242560U (en) |
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2021
- 2021-05-31 CN CN202121200249.9U patent/CN215242560U/en active Active
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