CN218429700U - Injection mold with good sealing performance - Google Patents

Injection mold with good sealing performance Download PDF

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Publication number
CN218429700U
CN218429700U CN202223022715.6U CN202223022715U CN218429700U CN 218429700 U CN218429700 U CN 218429700U CN 202223022715 U CN202223022715 U CN 202223022715U CN 218429700 U CN218429700 U CN 218429700U
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fixed mounting
mould
injection mold
groove
die
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CN202223022715.6U
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Chinese (zh)
Inventor
李为廷
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Xiamen Weixin Sunshine Mould Co ltd
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Xiamen Weixin Sunshine Mould Co ltd
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Abstract

The utility model provides an injection mold that leakproofness is good relates to injection mold technical field, which comprises a main frame, the inside bottom fixed mounting of main frame has the bed die, the inside top fixed mounting of main frame has pneumatic cylinder A, pneumatic cylinder A's bottom fixed mounting has last mould, the die cavity has been seted up on the top of bed die, the venthole has been seted up to the bottom of die cavity, one side fixed mounting of bed die has the vacuum pump, the position department that the bed die top is close to the die cavity has seted up the seal groove, fixed mounting has the mould piece in the middle of the bottom of going up the mould. The utility model discloses in, through the setting of cavity rubber ring, make injection mold when using, through aerifing in the cavity rubber ring, make cavity rubber ring obtain the inflation, make and obtain sealedly between bed die and the last mould, avoided leading to the phenomenon that the air current made the product surface gassing in advancing the die cavity because of sealing washer A and sealing washer B are broken to produce, make injection mold's leakproofness better.

Description

Injection mold with good sealing performance
Technical Field
The utility model relates to an injection mold technical field especially relates to an injection mold that leakproofness is good.
Background
When a plastic product with a special shape is processed, an injection mold is needed to be used for injection molding of the plastic product, plastic particles are melted by the injection mold, and then the plastic particles are injected into a mold cavity through injection molding holes for cooling and forming, when the injection mold is used for injection molding, air in the mold cavity needs to be pumped out, when the injection mold is used for a long time, the sealing ring A and the sealing ring B are extruded for a long time, the phenomenon that the sealing performance of the injection mold is reduced, when the injection mold is used, the air can flow into the mold cavity along a notch of the sealing ring A, bubbles are generated on the surface of the injection molded product, the injection mold needs to be re-molded, the time is delayed, the work efficiency is reduced, and the improvement is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing an injection mold with good sealing performance.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides an injection mold that leakproofness is good, includes the main frame, the inside bottom fixed mounting of main frame has the bed die, the inside top fixed mounting of main frame has pneumatic cylinder A, pneumatic cylinder A's bottom fixed mounting has last mould, the die cavity has been seted up on the top of bed die, the venthole has been seted up to the bottom of die cavity, one side fixed mounting of bed die has the vacuum pump, the position department that the bed die top is close to the die cavity has seted up the seal groove, fixed mounting has the mould piece in the middle of the bottom of going up the mould, the hole of moulding plastics has been seted up in the middle of the bottom of mould piece, it has the cavity rubber ring to go up the position department fixed mounting that the mould bottom is close to the mould piece, top one side fixed mounting of going up the mould has the pump.
In order to evacuate the air in the die cavity, the utility model discloses the improvement has, be linked together between the output of vacuum pump and the venthole.
In order to restrict the position of the upper die on the lower die, the utility model discloses the improvement has, the position department that the lower die top is close to the seal groove has seted up the spacing groove, the position department fixed mounting that the upper die bottom is close to the cavity rubber ring has the gag lever post, sliding connection between gag lever post and the spacing groove.
In order to make injection mold's sealed effect better, the utility model discloses the improvement has, equal fixed mounting all around has sealing washer A on the top of bed die, the equal fixed mounting all around of going up the mould bottom has sealing washer B.
In order to make the inflator pump inflate for the hollow rubber ring, the utility model discloses the improvement has, the output fixed mounting of inflator pump has the gas-supply pipe, fixed mounting between gas-supply pipe and the hollow rubber ring.
In order to make the venthole sealed, the utility model discloses improve and have, the inside position department that is close to the venthole of bed die is provided with sealing mechanism, sealing mechanism includes recess B, recess B sets up the inside at the bed die, the inside position department that is close to recess B of bed die has seted up recess A, the position department fixed mounting that the main frame is close to recess A has pneumatic cylinder B, pneumatic cylinder B's output fixed mounting has the connection rope, recess A and recess B's intersection fixed mounting has the axostylus axostyle, the centre of axostylus axostyle is rotated and is connected with the connecting rod, the one end fixed mounting of connecting rod has the closing plate, axostylus axostyle surface one end fixed mounting has the torsional spring.
In order to make the closing plate remain a power to the venthole direction throughout, the utility model discloses the improvement has, the closing plate sets up the inside at recess B, fixed mounting between connecting rod and the connection rope, fixed mounting between the one end of torsional spring and the connecting rod, fixed mounting between the one end that the connecting rod was kept away from to the torsional spring and the bed die.
Compared with the prior art, the utility model has the advantages and positive effects that,
1. the utility model discloses in, through the setting of cavity rubber ring, make injection mold when using, through aerifing in the cavity rubber ring, make cavity rubber ring obtain the inflation, make and obtain sealedly between bed die and the last mould, avoided leading to the phenomenon that the air current made the product surface gassing in advancing the die cavity because of sealing washer A and sealing washer B are broken to produce, make injection mold's leakproofness better.
2. The utility model discloses in, because of general injection mold when using, need manage to find time to the air in the die cavity, and injection mold when moulding plastics, the plastics that melt can flow into in the venthole, make the drawing of patterns of product increase the degree of difficulty, and through the setting of closing plate, make the air in the die cavity when managing to find time, cover the venthole through the closing plate, avoided the plastics that melt to get into the phenomenon production in the venthole.
Drawings
Fig. 1 is a schematic view of an injection mold with good sealing performance provided by the present invention;
fig. 2 is a bottom view of the injection mold with good sealing performance;
fig. 3 is a schematic view of a partial explosion structure of an injection mold with good sealing performance;
fig. 4 is the utility model provides a A enlarger in fig. 3 of injection mold that leakproofness is good.
Illustration of the drawings:
1. a main frame; 2. a lower die; 3. a vacuum pump; 4. an air outlet; 5. a mold cavity; 6. a sealing groove; 7. a hydraulic cylinder A; 8. an inflator pump; 9. a gas delivery pipe; 10. an upper die; 11. a sealing ring A; 12. a limiting groove; 13. A mold block; 14. a limiting rod; 15. a hollow rubber ring; 16. injection molding holes; 17. a seal ring B; 18. a hydraulic cylinder B; 19. a groove A; 20. connecting ropes; 21. a connecting rod; 22. a shaft lever; 23. a groove B; 24. sealing plates; 25. a torsion spring.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations set forth in the following description of the specific embodiments.
Example one
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides an injection mold that leakproofness is good, including main frame 1, main frame 1's inside bottom fixed mounting has bed die 2, main frame 1's inside top fixed mounting has pneumatic cylinder A7, pneumatic cylinder A7's bottom fixed mounting has last mould 10, die cavity 5 has been seted up on the top of bed die 2, venthole 4 has been seted up to die cavity 5's bottom, one side fixed mounting of bed die 2 has vacuum pump 3, be linked together between vacuum pump 3's the output and the venthole 4, 2 positions department of bed die 2 top near die cavity 5 has seted up seal groove 6, equal fixed mounting has sealing washer A11 all around the top of bed die 2, equal fixed mounting all around of going up the mould 10 bottom has sealing washer B17, fixed mounting has mould piece 13 in the middle of the bottom of going up mould 10, injection hole 16 has been seted up in the middle of the bottom of mould piece 13, it has hollow rubber ring 15 to go up mould 10 positions department fixed mounting near mould piece 13 bottom, top one side fixed mounting of last mould 10 has inflator pump 8, output fixed mounting of inflator pump 8 has gas-supply pipe 9, fixed mounting between gas-supply pipe 9 and the hollow rubber ring 15 is in order to make the bed die 2 and go up the mould 10 and obtain the better sealed sealing washer of the sealed product and sealed the sealed product and produced the sealed air flow because of the mould cavity 11 and make the mould cavity.
Referring to fig. 1-2, a position of the top end of the lower mold 2 near the sealing groove 6 is provided with a limiting groove 12, a position of the bottom end of the upper mold 10 near the hollow rubber ring 15 is fixedly provided with a limiting rod 14, the limiting rod 14 is slidably connected with the limiting groove 12, and the design of the limiting rod 14 and the limiting groove 12 is to limit the position of the upper mold 10, so that the upper mold 10 can be perfectly overlapped with the lower mold 2.
Example two
Referring to fig. 3-4, a sealing mechanism is disposed inside the lower mold 2 at a position close to the air outlet hole 4, the sealing mechanism includes a groove B23, the groove B23 is disposed inside the lower mold 2, a groove a19 is disposed inside the lower mold 2 at a position close to the groove B23, a hydraulic cylinder B18 is fixedly mounted at a position close to the groove a19 of the main frame 1, a connecting rope 20 is fixedly mounted at an output end of the hydraulic cylinder B18, a shaft rod 22 is fixedly mounted at an intersection of the groove a19 and the groove B23, a connecting rod 21 is rotatably connected to a middle of the shaft rod 22, a sealing plate 24 is fixedly mounted at one end of the connecting rod 21, the sealing plate 24 is designed to cover the air outlet hole 4 with the sealing plate 24 when air in the mold cavity 5 is evacuated, so as to prevent molten plastic from entering the air outlet hole 4, a torsion spring 25 is fixedly mounted at one end of a surface of the shaft rod 22, the sealing plate 24 is disposed inside the groove B23, the connecting rod 21 is fixedly mounted to the connecting rope 20, one end of the torsion spring 25 is fixedly mounted to the connecting rod 21, one end of the torsion spring 25 is fixedly mounted to the lower mold 2, one end of the torsion spring 25 is designed to keep a direction of the connecting rod 21 toward the air outlet hole 4, and the sealing plate can always keep the air outlet hole 4.
The working principle is as follows: when the injection mold is used, firstly, the hydraulic cylinder A7 is started, the upper mold 10 is driven to move downwards by the movement of the hydraulic cylinder A7 until the limiting rod 14 is inserted into the limiting groove 12, the hollow rubber ring 15 moves into the sealing groove 6, then the inflator pump 8 is started, air flows into the hollow rubber ring 15 from the air conveying pipe 9 by the starting of the inflator pump 8, the hollow rubber ring 15 is expanded to be fully squeezed into the sealing groove 6, the mold cavity 5 is sealed, then the hydraulic cylinder B18 is started, the connecting rope 20 is driven to move towards the direction of the hydraulic cylinder B18 by the starting of the hydraulic cylinder B18, the connecting rope 20 is driven to rotate around the shaft rod 22 by the movement of the connecting rope 20 until the sealing plate 24 at one end of the connecting rod 21 leaves the air outlet 4, then the vacuum pump 3 is started, the air in the mold cavity 5 is pumped out, the hydraulic cylinder B18 is started, the connecting rope 20 at one end of the hydraulic cylinder B18 is loosened, and the sealing plate 24 moves towards the direction of the air outlet 4 under the action of the torsion spring 25 until the air outlet 4 is sealed.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may apply the equivalent embodiments modified or modified by the above technical contents disclosed as equivalent variations to other fields, but any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims (7)

1. The utility model provides an injection mold that leakproofness is good, includes main frame (1), its characterized in that: the utility model discloses a mould, including main frame (1), inside bottom fixed mounting of main frame (1) has bed die (2), the inside top fixed mounting of main frame (1) has pneumatic cylinder A (7), the bottom fixed mounting of pneumatic cylinder A (7) has last mould (10), die cavity (5) have been seted up on the top of bed die (2), venthole (4) have been seted up to the bottom of die cavity (5), one side fixed mounting of bed die (2) has vacuum pump (3), position department that bed die (2) top is close to die cavity (5) has seted up seal groove (6), fixed mounting has mould piece (13) in the middle of the bottom of last mould (10), injection hole (16) have been seted up in the middle of the bottom of mould piece (13), it has cavity rubber ring (15) to go up position department fixed mounting that mould (10) bottom is close to mould piece (13), top one side fixed mounting of last mould (10) has inflator pump (8).
2. The injection mold with good sealing performance as claimed in claim 1, wherein: the output end of the vacuum pump (3) is communicated with the air outlet hole (4).
3. The injection mold with good sealing performance as claimed in claim 1, wherein: limiting groove (12) have been seted up to the position department that lower mould (2) top is close to seal groove (6), go up mould (10) bottom and be close to the position department fixed mounting of cavity rubber ring (15) have gag lever post (14), sliding connection between gag lever post (14) and limiting groove (12).
4. The injection mold with good sealing performance as claimed in claim 1, wherein: the top of lower mould (2) all fixed mounting all around has sealing washer A (11), all fixed mounting all around of going up mould (10) bottom has sealing washer B (17).
5. The injection mold with good sealing performance as claimed in claim 1, wherein: the output end of the inflator pump (8) is fixedly provided with a gas pipe (9), and the gas pipe (9) and the hollow rubber ring (15) are fixedly arranged.
6. The injection mold with good sealing performance as claimed in claim 1, wherein: the inner portion of the lower die (2) close to the air outlet hole (4) is provided with a sealing mechanism, the sealing mechanism comprises a groove B (23), the groove B (23) is formed in the lower die (2), the groove A (19) is formed in the inner portion of the lower die (2) close to the groove B (23), a hydraulic cylinder B (18) is fixedly mounted at the position of the main frame (1) close to the groove A (19), a connecting rope (20) is fixedly mounted at the output end of the hydraulic cylinder B (18), a shaft rod (22) is fixedly mounted at the intersection of the groove A (19) and the groove B (23), a connecting rod (21) is rotatably connected to the middle of the shaft rod (22), a sealing plate (24) is fixedly mounted at one end of the connecting rod (21), and a torsion spring (25) is fixedly mounted at one end of the surface of the shaft rod (22).
7. The injection mold with good sealing performance as claimed in claim 6, wherein: the sealing plate (24) is arranged in the groove B (23), the connecting rod (21) and the connecting rope (20) are fixedly mounted, one end of the torsion spring (25) is fixedly mounted with the connecting rod (21), and one end of the torsion spring (25) far away from the connecting rod (21) is fixedly mounted with the lower die (2).
CN202223022715.6U 2022-11-12 2022-11-12 Injection mold with good sealing performance Active CN218429700U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223022715.6U CN218429700U (en) 2022-11-12 2022-11-12 Injection mold with good sealing performance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223022715.6U CN218429700U (en) 2022-11-12 2022-11-12 Injection mold with good sealing performance

Publications (1)

Publication Number Publication Date
CN218429700U true CN218429700U (en) 2023-02-03

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Application Number Title Priority Date Filing Date
CN202223022715.6U Active CN218429700U (en) 2022-11-12 2022-11-12 Injection mold with good sealing performance

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118322481A (en) * 2024-04-28 2024-07-12 无锡市东成塑胶五金有限公司 High-tightness injection molding process and device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118322481A (en) * 2024-04-28 2024-07-12 无锡市东成塑胶五金有限公司 High-tightness injection molding process and device

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