CN216139345U - Injection mold - Google Patents
Injection mold Download PDFInfo
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- CN216139345U CN216139345U CN202121715089.1U CN202121715089U CN216139345U CN 216139345 U CN216139345 U CN 216139345U CN 202121715089 U CN202121715089 U CN 202121715089U CN 216139345 U CN216139345 U CN 216139345U
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- exhaust
- exhaust pipe
- die
- backing plate
- exhaust tube
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Abstract
The utility model discloses an injection mold, which comprises a male mold, a female mold and a first exhaust pipe, wherein the male mold is provided with a first exhaust pipe; the male die is arranged at one end of the female die, and an injection molding cavity is formed between the male die and the female die; the first exhaust pipe is arranged in the female die, one end of the first exhaust pipe is communicated with the injection molding cavity, the other end of the first exhaust pipe penetrates through the female die, the exhaust pipe is arranged in the female die, one end of the exhaust pipe is communicated with the injection molding cavity, the other end of the exhaust pipe penetrates through the female die, gas in the cavity can be pumped out by the exhaust pipe, the cavity is prevented from having air when being filled, the product has bubbles, the gas in the cavity is thoroughly removed, injection molding exhaust is achieved, and product quality is improved.
Description
Technical Field
The utility model relates to the technical field of injection molding, in particular to an injection mold.
Background
The injection molding is a technological process of heating, plasticizing and melting plastic, then injecting the plastic into a cavity of a molding die for molding, cooling, solidifying a melt and then demolding. Due to the mixing of air in the injection process, the surface of an injection molding product has a bubble hole phenomenon, or micro bubbles are formed in an injection molding part, so that the quality problems of the surface smoothness, the strength and the like of the product are influenced. In the prior art, the problem of foaming of a product is solved by adopting an insert opening and exhausting method of an injection mold, when plastic is injected, gas in a cavity is naturally exhausted, but the problem of foaming of the product cannot be completely solved by the method, and the product is easy to have bubbles.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the utility model provides an injection mold, can realize moulding plastics the exhaust, improve product quality.
In order to solve the technical problems, the utility model adopts the technical scheme that:
an injection mold comprises a male mold, a female mold and a first exhaust pipe;
the male die is arranged at one end of the female die, and an injection molding cavity is formed between the male die and the female die;
the first exhaust pipe is arranged in the female die, one end of the first exhaust pipe is communicated with the injection molding cavity, and the other end of the first exhaust pipe penetrates through the female die.
Further, the first exhaust pipe is provided with an exhaust channel matched with the injection molding cavity;
and one end of the first exhaust tube is communicated with the injection molding cavity through the exhaust channel.
Further, the device also comprises a core backing plate and a second exhaust pipe;
the female die is embedded in one side of the core backing plate;
the second exhaust tube is arranged in the core backing plate, one end of the second exhaust tube is communicated with the other end of the first exhaust tube, and the other end of the second exhaust tube penetrates through the core backing plate.
Further, the die also comprises a die core plate;
the die core plate is provided with a through hole matched with the core backing plate;
the core backing plate is embedded in the through hole.
Furthermore, the device also comprises a fixing plate, a third exhaust tube and an exhaust port;
the fixing plate is arranged on the other side of the core backing plate;
the air pumping ports are arranged at two ends of the fixing plate;
the third exhaust tube is arranged in the fixed plate, one end of the third exhaust tube is communicated with the other end of the second exhaust tube, and the other end of the third exhaust tube is communicated with the exhaust opening.
Further, the device also comprises a sealing rubber ring;
the sealing rubber ring is arranged at the joint of the third exhaust pipe and the second exhaust pipe.
Further, the device also comprises a vacuum generating device;
the vacuum generating device is connected with the air pumping port.
The utility model has the beneficial effects that: through set up the exhaust tube in the master model, the one end and the die cavity intercommunication of moulding plastics of exhaust tube, the other end runs through the master model, can utilize the exhaust tube to take out the gas in the die cavity from, has avoided the die cavity to have the air to exist when being filled, leads to the product to have the bubble, has thoroughly got rid of the gas in the die cavity to the realization is moulded plastics and is exhausted, has improved product quality.
Drawings
FIG. 1 is a schematic diagram of an overall structure of an injection mold according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a male mold of an injection mold according to an embodiment of the present invention;
FIG. 3 is a schematic view of an internal structure of an injection mold according to an embodiment of the present invention after a mold core plate and a fixing plate are hidden;
FIG. 4 is a schematic structural diagram of a fixing plate of an injection mold according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a core plate of an injection mold according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of an exhaust tube of an injection mold according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a first exhaust tube of an injection mold according to an embodiment of the present invention;
description of reference numerals:
1. a male die; 2. a female die; 3. a first exhaust tube; 31. an exhaust passage; 4. injection molding a cavity; 5. a core backing plate; 6. a second extraction tube; 7. a core plate; 8. a through hole; 9. a fixing plate; 10. a third exhaust tube; 11. an air extraction opening; 12. sealing the rubber ring; 13. and a vacuum generating device.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1, an injection mold includes a male mold, a female mold, and a first exhaust pipe;
the male die is arranged at one end of the female die, and an injection molding cavity is formed between the male die and the female die;
the first exhaust pipe is arranged in the female die, one end of the first exhaust pipe is communicated with the injection molding cavity, and the other end of the first exhaust pipe penetrates through the female die.
From the above description, the beneficial effects of the present invention are: through set up the exhaust tube in the master model, the one end and the die cavity intercommunication of moulding plastics of exhaust tube, the other end runs through the master model, can utilize the exhaust tube to take out the gas in the die cavity from, has avoided the die cavity to have the air to exist when being filled, leads to the product to have the bubble, has thoroughly got rid of the gas in the die cavity to the realization is moulded plastics and is exhausted, has improved product quality.
Further, the first exhaust pipe is provided with an exhaust channel matched with the injection molding cavity;
and one end of the first exhaust tube is communicated with the injection molding cavity through the exhaust channel.
According to the above description, the exhaust channel matched with the injection molding cavity is arranged, so that the exhaust channel can be distributed around the injection molding cavity, the situation that the gas at the dead angle position of the injection molding cavity cannot be exhausted is avoided, and the gas in the injection molding cavity can be exhausted rapidly.
Further, the device also comprises a core backing plate and a second exhaust pipe;
the female die is embedded in one side of the core backing plate;
the second exhaust tube is arranged in the core backing plate, one end of the second exhaust tube is communicated with the other end of the first exhaust tube, and the other end of the second exhaust tube penetrates through the core backing plate.
From the above description, it can be seen that, by communicating the second air exhaust pipe in the core backing plate with the first air exhaust pipe in the mold, the air in the injection mold cavity can be exhausted through the first air exhaust pipe and the second air exhaust pipe.
Further, the die also comprises a die core plate;
the die core plate is provided with a through hole matched with the core backing plate;
the core backing plate is embedded in the through hole.
As can be seen from the above description, the female mold is disposed on the core backing plate, and the core backing plate is embedded in the mold core plate, so that the mold can be fixed on the mold core plate.
Furthermore, the device also comprises a fixing plate, a third exhaust tube and an exhaust port;
the fixing plate is arranged on the other side of the core backing plate;
the air pumping ports are arranged at two ends of the fixing plate;
the third exhaust tube is arranged in the fixed plate, one end of the third exhaust tube is communicated with the other end of the second exhaust tube, and the other end of the third exhaust tube is communicated with the exhaust opening.
According to the above description, one end of the third exhaust pipe is communicated with the second exhaust pipe, and the other end of the third exhaust pipe is communicated with the exhaust opening, so that when air is exhausted, air in the injection molding cavity is exhausted into the second exhaust pipe through the first exhaust pipe, then is exhausted into the third exhaust pipe through the second exhaust pipe, and finally is exhausted through the exhaust opening, thereby realizing injection molding exhaust.
Further, the device also comprises a sealing rubber ring;
the sealing rubber ring is arranged at the joint of the third exhaust pipe and the second exhaust pipe.
According to the above description, the sealing rubber ring is arranged at the joint of the third exhaust pipe and the second exhaust pipe, so that external air can be prevented from entering the exhaust pipe and affecting exhaust.
Further, the device also comprises a vacuum generating device;
the vacuum generating device is connected with the air pumping port.
According to the description, the vacuum generating device is connected with the air extracting port, and when air is exhausted, the vacuum generating device extracts air in the injection molding cavity through the mutually connected air extracting pipes, so that air in the cavity is thoroughly removed, and bubbles generated by the product due to the existence of air are avoided.
The injection mold described above can be applied to exhaust of the injection mold, and the following description will be made by way of specific embodiments:
example one
Referring to fig. 1-2 and 7, an injection mold of the present embodiment includes a male mold 1, a female mold 2 and a first exhaust pipe 3;
the male die 1 is arranged at one end of the female die 2, and an injection molding cavity 4 is formed between the male die 1 and the female die 2;
the first exhaust pipe 3 is arranged in the female die 2, one end of the first exhaust pipe 3 is communicated with the injection molding cavity 4, and the other end of the first exhaust pipe penetrates through the female die 2.
Example two
Referring to fig. 1 and 3-7, the difference between the first embodiment and the second embodiment is that the specific structures of the first exhaust tube and the injection mold are defined:
as shown in fig. 7, the first exhaust pipe 3 is provided with an exhaust passage 31 adapted to the injection mold cavity 4;
the one end of the first exhaust pipe 3 is communicated with the injection molding cavity 4 through the exhaust passage 31;
specifically, the exhaust position of the exhaust channel 31 is located at the position where the injection mold cavity 4 is filled with glue at last, so that the influence on an injection molding product is avoided;
as shown in fig. 3 and 6, the core backing plate 5 and the second exhaust pipe 6 are further included;
the female die 2 is embedded in one side of the core backing plate 5;
the second exhaust pipe 6 is arranged in the core backing plate 5, one end of the second exhaust pipe 6 is communicated with the other end of the first exhaust pipe 3, and the other end of the second exhaust pipe 6 penetrates through the core backing plate 5;
specifically, as shown in fig. 3, a groove is formed in one side of the core backing plate 5, and a plurality of female molds 2 can be embedded in the groove, so that a plurality of products can be simultaneously subjected to injection molding;
as shown in fig. 5, further comprises a mold core plate 7;
the die core plate 7 is provided with a through hole 8 matched with the core backing plate 5;
the core backing plate 5 is embedded in the through hole 8;
specifically, as shown in fig. 1, 4 and 6, the air extractor further comprises a fixing plate 9, a third air extraction pipe 10 and an air extraction opening 11;
the fixing plate 9 is arranged on the other side of the core backing plate 5;
the air pumping ports 11 are arranged at two ends of the fixing plate 9;
the third exhaust pipe 10 is arranged in the fixing plate 9, one end of the third exhaust pipe 10 is communicated with the other end of the second exhaust pipe 6, and the other end of the third exhaust pipe 10 is communicated with the exhaust port 11;
specifically, as shown in fig. 4 and 6, the sealing device further comprises a sealing rubber ring 12;
the sealing rubber ring 12 is arranged at the joint of the third exhaust tube 10 and the second exhaust tube 6, and the sealing rubber ring 12 can prevent external gas from entering the exhaust tube to affect exhaust;
specifically, as shown in fig. 4 and 6, the vacuum generator 13 is further included;
the vacuum generating device 13 is connected with the air extraction opening 11, and the gas in the injection molding cavity 4 can be exhausted through the vacuum generating device 13;
when the air needs to be exhausted, the vacuum generating device 13 starts to work, so that the air in the injection molding cavity 4 is exhausted into the second air exhaust pipe 6 through the first air exhaust pipe 3, then is exhausted into the third air exhaust pipe 10 through the second air exhaust pipe 6, and is finally exhausted from the air exhaust port 11, the air in the cavity is thoroughly exhausted, and the product is prevented from generating bubbles due to the existence of the air.
In summary, the injection mold provided by the utility model comprises a male mold, a female mold and a first exhaust pipe; the male die is arranged at one end of the female die, and an injection molding cavity is formed between the male die and the female die; the first exhaust pipe is arranged in the female die, one end of the first exhaust pipe is communicated with the injection molding cavity, and the other end of the first exhaust pipe penetrates through the female die; the female die is embedded in one side of the core backing plate; the second air exhaust pipe is arranged in the core backing plate, one end of the second air exhaust pipe is communicated with the other end of the first air exhaust pipe, and the other end of the second air exhaust pipe penetrates through the core backing plate; the fixing plate is arranged on the other side of the core backing plate; the air pumping ports are arranged at two ends of the fixing plate; the third exhaust tube is arranged in the fixed plate, one end of the third exhaust tube is communicated with the other end of the second exhaust tube, the other end of the third exhaust tube is communicated with the exhaust opening, the vacuum generating device is connected with the exhaust opening, the vacuum generating device enables gas in the injection molding cavity to be exhausted through the first exhaust tube, the second exhaust tube and the third exhaust tube, the gas in the cavity is thoroughly exhausted, injection molding exhaust is achieved, the phenomenon of bubbles in a product is avoided, and the product quality is improved.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (7)
1. An injection mold is characterized by comprising a male mold, a female mold and a first exhaust pipe;
the male die is arranged at one end of the female die, and an injection molding cavity is formed between the male die and the female die;
the first exhaust pipe is arranged in the female die, one end of the first exhaust pipe is communicated with the injection molding cavity, and the other end of the first exhaust pipe penetrates through the female die.
2. An injection mould according to claim 1, characterized in that the first exhaust duct is provided with an exhaust channel adapted to the injection mould cavity;
and one end of the first exhaust tube is communicated with the injection molding cavity through the exhaust channel.
3. An injection mold according to claim 1, further comprising a core backing plate and a second extraction duct;
the female die is embedded in one side of the core backing plate;
the second exhaust tube is arranged in the core backing plate, one end of the second exhaust tube is communicated with the other end of the first exhaust tube, and the other end of the second exhaust tube penetrates through the core backing plate.
4. An injection mold according to claim 3, further comprising a core plate;
the die core plate is provided with a through hole matched with the core backing plate;
the core backing plate is embedded in the through hole.
5. An injection mold according to claim 3, further comprising a fixing plate, a third suction pipe and a suction port;
the fixing plate is arranged on the other side of the core backing plate;
the air pumping ports are arranged at two ends of the fixing plate;
the third exhaust tube is arranged in the fixed plate, one end of the third exhaust tube is communicated with the other end of the second exhaust tube, and the other end of the third exhaust tube is communicated with the exhaust opening.
6. An injection mold according to claim 5, further comprising a sealing rubber ring;
the sealing rubber ring is arranged at the joint of the third exhaust pipe and the second exhaust pipe.
7. An injection mold according to claim 5, further comprising vacuum generating means;
the vacuum generating device is connected with the air pumping port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121715089.1U CN216139345U (en) | 2021-07-26 | 2021-07-26 | Injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121715089.1U CN216139345U (en) | 2021-07-26 | 2021-07-26 | Injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216139345U true CN216139345U (en) | 2022-03-29 |
Family
ID=80802964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121715089.1U Active CN216139345U (en) | 2021-07-26 | 2021-07-26 | Injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216139345U (en) |
-
2021
- 2021-07-26 CN CN202121715089.1U patent/CN216139345U/en active Active
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