CN220008614U - High stable injection mold - Google Patents
High stable injection mold Download PDFInfo
- Publication number
- CN220008614U CN220008614U CN202320333538.9U CN202320333538U CN220008614U CN 220008614 U CN220008614 U CN 220008614U CN 202320333538 U CN202320333538 U CN 202320333538U CN 220008614 U CN220008614 U CN 220008614U
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- air
- die
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- groove
- mould
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- 238000002347 injection Methods 0.000 title claims abstract description 35
- 239000007924 injection Substances 0.000 title claims abstract description 35
- 238000007789 sealing Methods 0.000 claims description 26
- 239000000463 material Substances 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 9
- 238000001816 cooling Methods 0.000 abstract description 7
- 238000000465 moulding Methods 0.000 abstract description 7
- 238000007493 shaping process Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 230000001502 supplementing effect Effects 0.000 description 12
- 238000001746 injection moulding Methods 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to the technical field of dies and discloses a high-stability injection die which comprises a lower die and an upper die, wherein a die groove matched with a die head of the upper die is arranged on the lower die, an edge groove matched with the die groove is formed in the end face of the lower die, an exhaust hole is formed in one side of the bottom of the edge groove, a one-way valve is arranged in the exhaust hole, a groove communicated with the exhaust hole is formed in the side wall of the lower die, an air pump corresponding to the position of the groove is fixed on the side wall of the lower die, and the suction end of the air pump is arranged at the inner side of the groove. According to the utility model, the air in the die cavity can be extracted in advance in the die assembly process, so that the air pressure in the die cavity is smaller and the stability is improved in the material injection process, the vent hole can be plugged after the die assembly is completed, the phenomenon that the material overflows into the vent hole can not occur, the stability of the product molding quality is improved, the cooling and shaping efficiency of the product can be improved, and the use effect is good.
Description
Technical Field
The utility model relates to the technical field of molds, in particular to a high-stability injection mold.
Background
The injection mold is the most common product forming mold, and has high production efficiency and good forming quality.
After the injection mold is assembled, a large amount of air is contained in the mold cavity, so that defects such as bubbles are generated in the product due to the air are avoided, an exhaust gap is reserved at the mold assembly part for exhausting the air when the injection mold is designed, the exhaust gap is designed to be very small for preventing materials from leaking out of the exhaust gap, so that the air exhaust flow rate at the exhaust gap is very fast in the material injection process, the stability in the mold cavity is poor, part of materials overflow into the exhaust gap, the product molding appearance is influenced, and the stability of the product molding quality is poor, so that the high-stability injection mold is provided.
Disclosure of Invention
The utility model aims to solve the problems that in the prior art, in order to prevent materials from leaking out of an exhaust gap, the design of the exhaust gap is generally very small, so that the air discharge flow rate at the exhaust gap is very fast in the material injection process, the internal stability of a die cavity is poor, part of materials overflow into the exhaust gap, the molding appearance of a product is affected, and the stability of the molding quality of the product is poor.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a high stable form injection mold, includes lower mould and last mould, be equipped with on the lower mould with the die head assorted die cavity of last mould, and the terminal surface of lower mould seted up with die cavity assorted marginal groove, the exhaust hole has been seted up to tank bottom one side of marginal groove, and the inside of exhaust hole is equipped with the check valve, the recess that is linked together with the exhaust hole has been seted up to the lateral wall of lower mould, the lateral wall of lower mould is fixed with the air pump corresponding with the recess position, and the suction end of air pump is located the inboard setting of recess, be equipped with seal assembly on last mould and the lower mould jointly, the injection hole has been seted up to the terminal surface of going up the mould, and the terminal surface of going up the mould is fixed with the pipe of moulding plastics that is linked together with the injection hole.
Preferably, the output end of the air pump is fixed with an air pipe, an air cavity is formed in the lower die at a position below the die cavity, the air cavity is communicated with the air pipe, and an air outlet hole is formed in the side wall of the air cavity.
Preferably, the groove wall of the groove is provided with an air supplementing hole, the side wall of the lower die is provided with an air supplementing pipe communicated with the air supplementing hole, and the inside of the air supplementing pipe is provided with a pressure valve.
Preferably, the sealing assembly comprises a sealing frame plate fixedly arranged on the lower end face of the upper die, the sealing frame plate is sleeved outside the die head of the upper die, and a frame-shaped sealing groove matched with the sealing frame plate is formed in the end face of the lower die.
Preferably, the inner side wall and the outer side wall of the frame-shaped sealing groove are both fixed with frame-shaped rubber pads.
Preferably, all be fixed with the tie-bar in terminal surface four corners department of lower mould, and the post wall of each tie-bar all with the terminal surface sliding connection of last mould.
Preferably, the lower end face of the upper die is integrally provided with a sealing protrusion matched with the edge groove.
Compared with the prior art, the utility model provides a high-stability injection mold, which has the following beneficial effects:
1. this high stable injection mold, through the lower mould that is equipped with, go up mould, the die cavity, the edge groove, the exhaust hole, the air pump, injection hole and the mutually supporting of injection tube, can regard as injection mold to use, and can cooperate the seal assembly who sets up, can take out the inside air of die cavity in advance at the compound die in-process, the material in-process of annotating of messenger, the inside atmospheric pressure of die cavity is less, stability becomes high, and after thoroughly the compound die, can carry out the shutoff to the exhaust hole, can not produce the phenomenon that the material overflowed to the exhaust hole is inside, improve the stability of product shaping quality.
2. This high stable injection mold through the mutually supporting of gas-supply pipe, air cavity and the venthole that are equipped with, can utilize the air pump to assist the cooling design of carrying out the product after moulding plastics, improves the rate of utilization to the air pump, also can improve the cooling design efficiency of product, excellent in use effect.
The device has the advantages that the device has no part which is the same as or can be realized by adopting the prior art, the air in the die cavity can be extracted in advance in the die assembly process, the air pressure in the die cavity is smaller, the stability is higher in the material injection process, the vent hole can be plugged after the die assembly is thoroughly completed, the phenomenon that materials overflow into the vent hole can not occur, the stability of the product forming quality is improved, the cooling and shaping efficiency of the product is improved, and the use effect is good.
Drawings
Fig. 1 is a schematic structural diagram of a high-stability injection mold according to the present utility model;
fig. 2 is an enlarged view of the structure of the portion a in fig. 1.
In the figure: 1. a lower die; 2. an upper die; 3. a die cavity; 4. an edge groove; 5. an exhaust hole; 6. an air pump; 7. injection molding holes; 8. injection molding a tube; 9. a gas pipe; 10. an air cavity; 11. an air outlet hole; 12. an air supplementing hole; 13. an air supplementing pipe; 14. sealing the frame plate; 15. a frame-shaped seal groove; 16. a frame-shaped rubber pad; 17. a tie bar; 18. and a sealing protrusion.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-2, a high-stability injection mold comprises a lower mold 1 and an upper mold 2, wherein a mold cavity 3 matched with a mold head of the upper mold 2 is arranged on the lower mold 1, an edge groove 4 matched with the mold cavity 3 is formed in the end face of the lower mold 1, an exhaust hole 5 is formed in one side of the bottom of the edge groove 4, a one-way valve is arranged in the exhaust hole 5, a groove communicated with the exhaust hole 5 is formed in the side wall of the lower mold 1, an air pump 6 corresponding to the groove is fixed on the side wall of the lower mold 1, the suction end of the air pump 6 is arranged on the inner side of the groove, a sealing assembly is jointly arranged on the upper mold 2 and the lower mold 1, an injection molding hole 7 is formed in the end face of the upper mold 2, and an injection molding pipe 8 communicated with the injection molding hole 7 is fixed on the end face of the upper mold 2.
The output of air pump 6 is fixed with gas-supply pipe 9, and air cavity 10 has been seted up to the position that the inside of lower mould 1 is located the die cavity 3 below, and air cavity 10 is linked together with gas-supply pipe 9 and is set up, and venthole 11 has been seted up to the lateral wall of air cavity 10, and during operation of air pump 6, the air current that produces is carried to air cavity 10 inside through gas-supply pipe 9, cooperates venthole 11, forms the flowing air current, can reach the effect of supplementary product cooling design, improves product shaping efficiency.
The air supplementing hole 12 is formed in the groove wall of the groove, the air supplementing pipe 13 communicated with the air supplementing hole 12 is formed in the side wall of the lower die 1, and a pressure valve is arranged in the air supplementing pipe 13, so that after the upper die 2 and the lower die 1 are thoroughly clamped, external air can be continuously supplemented into the groove through the air supplementing pipe 13 and the air supplementing hole 12, and the air pump 6 can be matched with the air conveying pipe 9 to carry out auxiliary cooling shaping on a product.
The sealing assembly comprises a sealing frame plate 14 fixedly arranged on the lower end face of the upper die 2, the sealing frame plate 14 is sleeved outside the die head of the upper die 2, a frame-shaped sealing groove 15 matched with the sealing frame plate 14 is formed in the end face of the lower die 1, and through the arrangement, the upper die 2 and the lower die 1 can be sealed in advance in the die assembly process, so that air can be pumped out timely.
The inner and outer side walls of the frame-shaped seal groove 15 are fixed with frame-shaped rubber pads 16, and by this arrangement, the tightness after the insertion between the frame-shaped seal groove 15 and the seal frame plate 14 can be ensured.
The four corners of the end face of the lower die 1 are respectively fixed with a tie bar 17, and the tie bar walls of the tie bars 17 are respectively connected with the end face of the upper die 2 in a sliding manner, so that the moving stability between the lower die 1 and the upper die 2 can be improved.
The lower end face of the upper die 2 is integrally provided with a sealing protrusion 18 matched with the edge groove 4, and by the arrangement, the edge groove 4 can be sealed by the sealing protrusion 18 after the upper die 2 and the lower die 1 are clamped, so that the exhaust hole 5 is blocked.
In the utility model, when the upper die 2 and the lower die 1 are clamped, the air pump 6 is started, after the sealing frame plate 14 is inserted into the frame-shaped sealing groove 15, a closed space is formed between the upper die 2 and the lower die 1, at the moment, the air pump 6 works and is matched with the grooves and the exhaust holes 5, so that air between the upper die 2 and the lower die 1 can be rapidly pumped out before the upper die 1 and the lower die 1 are completely clamped, after the lower die 1 and the upper die 2 are clamped, the air in the die cavity can be completely exhausted, the exhaust holes 5 are blocked through the upper die 2, at the moment, materials are injected into the die cavity through the injection pipe 8 and the injection holes 7, and the product can be molded through cooling and shaping.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (7)
1. The utility model provides a high stable form injection mold, includes lower mould (1) and last mould (2), its characterized in that, be equipped with on lower mould (1) with mould (2) die head assorted die cavity (3), and the terminal surface of lower mould (1) seted up with die cavity (3) assorted marginal groove (4), exhaust hole (5) have been seted up to tank bottom one side of marginal groove (4), and the inside of exhaust hole (5) is equipped with the check valve, the recess that is linked together with exhaust hole (5) has been seted up to the lateral wall of lower mould (1), the lateral wall of lower mould (1) is fixed with air pump (6) corresponding with the recess position, and the suction end of air pump (6) is located the inboard setting of recess, be equipped with seal assembly jointly on upper mould (2) and lower mould (1), injection hole (7) have been seted up to the terminal surface of upper mould (2), and the terminal surface of upper mould (2) is fixed with injection pipe (8) that are linked together with injection hole (7).
2. The high-stability injection mold according to claim 1, wherein the output end of the air pump (6) is fixed with an air pipe (9), an air cavity (10) is formed in the lower mold (1) at a position below the mold cavity (3), the air cavity (10) is communicated with the air pipe (9), and an air outlet hole (11) is formed in the side wall of the air cavity (10).
3. The high-stability injection mold according to claim 1, wherein the wall of the groove is provided with an air-filling hole (12), the side wall of the lower mold (1) is provided with an air-filling pipe (13) communicated with the air-filling hole (12), and the inside of the air-filling pipe (13) is provided with a pressure valve.
4. The high-stability injection mold according to claim 1, wherein the sealing assembly comprises a sealing frame plate (14) fixedly arranged on the lower end surface of the upper mold (2), the sealing frame plate (14) is sleeved outside the mold head of the upper mold (2), and a frame-shaped sealing groove (15) matched with the sealing frame plate (14) is formed in the end surface of the lower mold (1).
5. The high-stability injection mold according to claim 4, wherein frame-shaped rubber pads (16) are fixed on the inner and outer side groove walls of the frame-shaped sealing groove (15).
6. The high-stability injection mold according to claim 1, wherein tie bars (17) are fixed at four corners of the end face of the lower mold (1), and the tie bar walls of the tie bars (17) are slidably connected with the end face of the upper mold (2).
7. A highly stable injection mould according to claim 1, characterized in that the lower end face of the upper mould (2) is integrally provided with sealing protrusions (18) matching the edge grooves (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320333538.9U CN220008614U (en) | 2023-02-28 | 2023-02-28 | High stable injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320333538.9U CN220008614U (en) | 2023-02-28 | 2023-02-28 | High stable injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220008614U true CN220008614U (en) | 2023-11-14 |
Family
ID=88670539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320333538.9U Active CN220008614U (en) | 2023-02-28 | 2023-02-28 | High stable injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220008614U (en) |
-
2023
- 2023-02-28 CN CN202320333538.9U patent/CN220008614U/en active Active
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