CN209851500U - Injection molding mold capable of rapidly solving air trapping - Google Patents
Injection molding mold capable of rapidly solving air trapping Download PDFInfo
- Publication number
- CN209851500U CN209851500U CN201920546227.4U CN201920546227U CN209851500U CN 209851500 U CN209851500 U CN 209851500U CN 201920546227 U CN201920546227 U CN 201920546227U CN 209851500 U CN209851500 U CN 209851500U
- Authority
- CN
- China
- Prior art keywords
- exhaust
- mold
- blank
- mould
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses an injection moulding mould that can solve fast and stranded gas relates to injection mould exhaust technical field, and mainly used solves the mould and is drawn into or the unable quick discharge of gas that produces because of when moulding plastics, and the product fills not enough because of stranded gas goes out, burns or the burr, the problem of defects such as scar. The main structure is as follows: a feeding sprue and an exhaust dummy nozzle are respectively arranged at two sides of the cavity, an air inlet of the exhaust dummy nozzle is arranged at the glue running end of the inner side wall of the cavity, and an air outlet of the exhaust dummy nozzle is arranged on the parting surface of the fixed mold blank; the cross-sectional area of the exhaust false water gap is gradually increased along the exhaust direction. The utility model provides an injection moulding mould that can solve fast and stranded gas can be in the air and the cold glue of tip of quick discharge injection mould, avoids the product because of gas can not get rid of, the cold glue of tip leads to fill defects such as not enough, scar, gas line and scorch.
Description
Technical Field
The utility model relates to an injection mold exhaust technical field especially relates to an injection mold that can solve fast and drown gas.
Background
Nowadays, the requirements on the appearance of vehicle-mounted injection molding products are higher and higher. However, cosmetic underfilling and burrs remain a technical contradiction that is difficult for the skilled person to solve. When the injection mold is used for injecting products, air in the mold is difficult to quickly discharge, and the products are not filled enough. If the size of the exhaust port is increased, a large amount of raw materials flow into the exhaust port, and then burrs with a large area are generated when the product is demoulded.
Currently, the mainstream exhaust methods generally include the following two methods:
1. the traditional parting surface air exhaust channel mode: the exhaust port is too large, burrs are generated, the processing is needed, and a large amount of working hours are wasted; and the air exhaust passage is too small, the product is not filled enough, and the quality is unstable.
2. Insert, insert pin type exhaust mode: due to the exhaust mode of the ejector pin, blockage occurs in the production process, and the production needs to be cleaned for 2 times per shift. And the internal gas is remained, the surface cleaning can not achieve good effect, and the lower die needs to be disassembled and cleaned. This wastes a lot of time and seriously reduces the production efficiency.
Therefore, a new injection mold capable of solving the above-mentioned drawbacks is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can solve injection mold of stranded gas fast can avoid the product to appear gaseous not enough, scar, gas line and defect such as scorch of filling that fails to get rid of and lead to in the air of quick discharge injection mold.
In order to achieve the purpose, the utility model provides an injection molding mold capable of rapidly solving the problem of air trapping, which comprises a fixed mold blank and a movable mold blank which are sequentially arranged from top to bottom, wherein the fixed mold blank is provided with at least one cavity on a parting surface, the movable mold blank is provided with a core embedded with the cavity on the parting surface, two sides of the cavity are respectively provided with a feeding sprue and an exhaust false nozzle, an air inlet of the exhaust false nozzle is arranged at the glue running end of the inner side wall of the cavity, and an air outlet of the exhaust false nozzle is arranged on the parting surface of the fixed mold blank; the cross-sectional area of the exhaust false water gap is gradually increased along the exhaust direction.
As a further improvement of the utility model, the movable mould blank is provided with a first drawing needle extending to the exhaust false nozzle on the parting surface of the fixed mould blank.
As a further improvement, the die joint of the fixed die blank is provided with a main runner and a branch runner which are communicated in sequence and used for injecting materials, and the discharge end of the branch runner is communicated with the feed inlet of the feed gate.
As a further improvement, the discharge gate of the feeding gate is arranged on the inner side wall of the cavity, and the cross-sectional area of the feeding gate is gradually reduced along the feeding direction.
As a further improvement of the present invention, the movable mold base is provided with a second drawing pin extending into the main runner on the parting surface of the fixed mold base.
As a further improvement, the upper end of the fixed mold base is connected with the fixed mold fixing plate, and the lower end of the movable mold base is connected with the movable mold fixing plate.
As a further improvement of the utility model, the upper end surface of the fixed die fixing plate is provided with a positioning ring.
Advantageous effects
Compared with the prior art, the utility model discloses a casing class, box class injection mold that can exhaust fast's advantage does:
1. the utility model discloses in, the air inlet setting of the false mouth of a river of exhausting is in the gluey end department of walking of die cavity inside wall, and the gas vent setting of the false mouth of a river of exhausting is on the die joint of cover half. The main body part of the exhaust false water gap is positioned in the fixed mold blank. And the cross-sectional area of the exhaust false water gap is gradually increased along the exhaust direction. And simulating a glue running path of the raw material through mold flow analysis, determining a glue running tail end point, and arranging an exhaust false water gap at the tail end point. Because the cross-sectional area of the exhaust false water gap is gradually increased along the exhaust direction, the air in the cavity can be actively sucked under the action of air flow. Therefore, gas and raw materials can enter the exhaust false water gap from the glue outlet at the tail end, and the gas and the raw materials are exhausted through the exhaust false water gap, so that the product cannot be insufficiently filled and have poor gas lines.
2. And a first material pulling needle extending into the exhaust false water gap is arranged on the parting surface of the movable mold blank and the fixed mold blank. The movable mould blank is provided with a first pulling needle, and raw materials enter the exhaust false water gap from the tail end glue-flowing position. And after the raw material is cooled, the movable mold blank is separated from the fixed mold blank, and the cooled raw material in the exhaust false water gap is separated from the exhaust false water gap by the first material pulling needle. Because the air inlet of the exhaust false nozzle is small, the first material pulling needle can conveniently separate redundant raw materials from the exhaust false nozzle. Meanwhile, the burr area can be reduced, and the working hours are saved.
3. And a second material pulling needle extending into the main flow channel is arranged on the parting surface of the movable mold blank and the fixed mold blank. Because the feed inlet of the feed gate is smaller, the second material pulling needle can conveniently separate redundant raw materials from the feed gate. Meanwhile, the burr area can be reduced, and the working hours are saved.
The invention will become more apparent from the following description when taken in conjunction with the accompanying drawings which illustrate embodiments of the invention.
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 a schematic structural view of the present invention;
fig. 2 is a partially enlarged view of a portion a in fig. 1.
Wherein: 1-fixed blank; 11-fixing the die fixing plate; 12-a positioning ring; 13-a main flow channel; 14-a shunt; 2-a cavity; 21-a feed gate; 22-exhaust false water gap; 3-a movable blank; 31-movable mould fixed plate; 32-core; 33-a first drawing needle; 34-a second pulling needle; 35-ejector pin.
Detailed Description
Embodiments of the present invention will now be described with reference to the accompanying drawings.
Example 1
The utility model discloses a concrete implementation mode is shown in fig. 1-2, an injection moulding mould that can solve fast and stranded gas, include from last cover half 1 and the movable mould base 3 that down sets gradually, cover half 1 is equipped with at least one die cavity 2 on the die joint, and movable mould base 3 is equipped with the core 32 with the 2 gomphosis of die cavity on the die joint. An extensible thimble 35 is arranged in the mold core 32. The raw material is injected into the cavity 2 and is shaped by extrusion of the core 32. After the raw material is cooled, the raw material is separated from the cavity 2, and the injection molding processing is finished.
Wherein, the two sides of the cavity 2 are respectively provided with a feeding sprue 21 and an exhaust false water gap 22. An air inlet of the exhaust dummy nozzle 22 is arranged at the glue running end of the inner side wall of the cavity 2, and an air outlet of the exhaust dummy nozzle 22 is arranged on the parting surface of the fixed mold blank 1. The cross-sectional area of the exhaust false water gap 22 gradually increases in the exhaust direction thereof.
And simulating a glue running path of the raw material through mold flow analysis, determining a glue running tail end point, and arranging an exhaust false water gap 22 at the tail end point. Since the cross-sectional area of the exhaust false water gap 22 is gradually increased along the exhaust direction thereof, the exhaust false water gap 22 can actively suck the air in the cavity 2 under the action of the air flow. Therefore, gas and raw materials can enter the exhaust false water gap 22 from the glue-removing position at the tail end, the gas and the raw materials are discharged through the exhaust false water gap 22, and the product does not have insufficient filling and poor gas lines.
The movable mold base 3 is provided with a first drawing pin 33 extending to the dummy exhaust port 22 on a parting surface with the fixed mold base 1. The movable mould blank 3 is provided with a first pulling needle 33, and raw materials enter the exhaust false water gap 22 from the glue-removing position at the tail end. After the raw material is cooled, the movable mold base 3 is separated from the fixed mold base 1, and the first pulling needle 33 separates the cooled raw material in the exhaust false water gap 22 from the exhaust false water gap 22. Because the air inlet of the exhaust false water gap 22 is small, the first material pulling needle 33 can conveniently separate the redundant raw materials from the exhaust false water gap 22. Meanwhile, the burr area can be reduced, and the working hour for cleaning burrs is saved.
Meanwhile, a main runner 13 and a sub-runner 14 which are sequentially communicated and used for injecting materials are arranged on the parting surface of the fixed mold blank 1, and the discharge end of the sub-runner 14 is communicated with the feed inlet of the feed gate 21. The discharge port of the feeding gate 21 is arranged on the inner side wall of the cavity 2, and the cross-sectional area of the feeding gate 21 is gradually reduced along the feeding direction. And a second material pulling needle 34 extending into the main flow channel 13 is arranged on the parting surface of the movable mold blank 3 and the fixed mold blank 1. Due to the small feeding opening of the feeding gate 21, the second pulling needle 34 can separate the excessive raw material from the feeding gate 21 conveniently. Meanwhile, the burr area can be reduced, and the working hour for cleaning burrs is saved.
In this embodiment, the material pulling ends of the first material pulling needle 33 and the second material pulling needle 34 are Z-shaped, so that redundant raw materials can be separated very conveniently.
In addition, the upper end of the fixed mold blank 1 is connected with a fixed mold fixing plate 11, and the lower end of the movable mold blank 3 is connected with a movable mold fixing plate 31. The upper end surface of the fixed die fixing plate 11 is provided with a positioning ring 12.
This device mainly used solves thermoplasticity, and the casing of thermosetting injection moulding product, box class mould enter into die edge because of the gaseous and the cold glue of tip that are drawn into/produce when moulding plastics, and gaseous and cold glue can not be got rid of, and the product goes out to fill because of the trapping gas and is not enough, the problem of defects such as burnt or burr, scar.
The present invention has been described above with reference to the preferred embodiments, but the present invention is not limited to the above-disclosed embodiments, and various modifications, equivalent combinations, which are made according to the essence of the present invention, should be covered.
Claims (7)
1. The injection molding mold capable of quickly solving the problem of air trapping comprises a fixed mold blank (1) and a movable mold blank (3) which are sequentially arranged from top to bottom, wherein the fixed mold blank (1) is provided with at least one cavity (2) on a parting surface, the movable mold blank (3) is provided with a mold core (32) embedded with the cavity (2) on the parting surface, the injection molding mold is characterized in that the two sides of the cavity (2) are respectively provided with a feeding sprue (21) and an exhaust false water gap (22), an air inlet of the exhaust false water gap (22) is arranged at the glue walking end of the inner side wall of the cavity (2), and an air outlet of the exhaust false water gap (22) is arranged on the parting surface of the fixed mold blank (1); the cross-sectional area of the exhaust false water gap (22) is gradually increased along the exhaust direction.
2. An injection mould capable of rapidly solving air trapping according to claim 1, characterized in that the movable mould blank (3) is provided with a first material drawing needle (33) extending into the exhaust false water gap (22) on a parting surface with the fixed mould blank (1).
3. The injection mold capable of rapidly solving the problem of air trapping according to claim 1, wherein a main runner (13) and a branch runner (14) which are sequentially communicated are arranged on the parting surface of the fixed mold blank (1), and the discharge end of the branch runner (14) is communicated with the feed inlet of the feed gate (21).
4. An injection mold capable of rapidly solving the problem of air trapping as claimed in claim 3, wherein the outlet of the feeding gate (21) is disposed on the inner side wall of the cavity (2), and the cross-sectional area of the feeding gate (21) is gradually reduced along the feeding direction thereof.
5. An injection mould capable of rapidly solving air trapping according to claim 3 or 4, characterized in that the movable mould blank (3) is provided with a second drawing needle (34) extending into the main runner (13) on a parting surface with the fixed mould blank (1).
6. The injection mold capable of rapidly solving the problem of air trapping as claimed in claim 1, wherein the upper end of the fixed mold base (1) is connected with a fixed mold fixing plate (11), and the lower end of the movable mold base (3) is connected with a movable mold fixing plate (31).
7. The injection molding mold capable of rapidly solving the problem of air trapping as claimed in claim 6, wherein a positioning ring (12) is provided on the upper end surface of the fixed mold fixing plate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920546227.4U CN209851500U (en) | 2019-04-22 | 2019-04-22 | Injection molding mold capable of rapidly solving air trapping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920546227.4U CN209851500U (en) | 2019-04-22 | 2019-04-22 | Injection molding mold capable of rapidly solving air trapping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209851500U true CN209851500U (en) | 2019-12-27 |
Family
ID=68938781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920546227.4U Expired - Fee Related CN209851500U (en) | 2019-04-22 | 2019-04-22 | Injection molding mold capable of rapidly solving air trapping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209851500U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111267299A (en) * | 2020-03-03 | 2020-06-12 | 深圳市凯尔斯塑胶电子有限公司 | Injection mold capable of reducing gas lines of workpiece |
-
2019
- 2019-04-22 CN CN201920546227.4U patent/CN209851500U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111267299A (en) * | 2020-03-03 | 2020-06-12 | 深圳市凯尔斯塑胶电子有限公司 | Injection mold capable of reducing gas lines of workpiece |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206605724U (en) | A kind of line position enters the injection mold of glue | |
| CN209851500U (en) | Injection molding mold capable of rapidly solving air trapping | |
| CN213137657U (en) | Injection mold structure with flash runner | |
| CN201105495Y (en) | Modified plug die | |
| CN106626258A (en) | Cold runner injection mold and plastic product | |
| CN209955196U (en) | Injection mold with time delay ejection mechanism | |
| CN207077695U (en) | Cold runner injection mold and plastic products | |
| CN207578941U (en) | Four core plug injection molds | |
| CN214000410U (en) | Glue feeding structure with caching function | |
| CN206230798U (en) | A kind of injection mold | |
| CN211917593U (en) | Slide top runner of injection mold | |
| CN111283966B (en) | Formed nail die and processing method thereof | |
| CN209699753U (en) | Injection molding blank mold | |
| CN209426086U (en) | No waste mine syringe injection mould | |
| CN220808328U (en) | Pen shell production die | |
| CN208558164U (en) | Frame mould above a kind of washing machine | |
| CN207954536U (en) | A kind of connector molding mode and molding die | |
| CN208801554U (en) | A kind of injection mold being automatically separated waste material | |
| CN206277606U (en) | A kind of automatic injection mold eliminated into cast gate residual | |
| CN217373275U (en) | Tunnel type glue feeding mold | |
| CN205889784U (en) | Exhaust system of injection mould | |
| CN211591156U (en) | Water gap ejection structure | |
| CN220973164U (en) | Rubber coating die for connector | |
| CN208392526U (en) | A kind of automobile rearview mirror goggle shell injection mold | |
| CN210308848U (en) | Fluted disc mould with exhaust mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191227 Termination date: 20210422 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |