CN220923146U - Injection mold with high filling degree - Google Patents
Injection mold with high filling degree Download PDFInfo
- Publication number
- CN220923146U CN220923146U CN202322520026.6U CN202322520026U CN220923146U CN 220923146 U CN220923146 U CN 220923146U CN 202322520026 U CN202322520026 U CN 202322520026U CN 220923146 U CN220923146 U CN 220923146U
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- template
- groove
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- plate
- fixed
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- 239000007924 injection Substances 0.000 title claims abstract description 19
- 238000002347 injection Methods 0.000 title claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 77
- 230000009467 reduction Effects 0.000 claims abstract description 4
- 238000004321 preservation Methods 0.000 claims description 15
- 230000007704 transition Effects 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000004513 sizing Methods 0.000 abstract description 21
- 238000001746 injection moulding Methods 0.000 abstract description 11
- 238000012797 qualification Methods 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 description 6
- 238000000465 moulding Methods 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 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
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to an injection mold with high filling degree, which comprises: lower bolster, offer lower template groove at lower template top, set up lower template, the body coupling of lower template inslot is in protruding, the setting at lower template top down between template and the lower bolster aggregate chamber, with aggregate chamber links to each other the sprue, set up the main cold charge well at sprue both ends, with the runner links to each other down, set up down vice cold charge well on the lower template and be located protruding outside, set up the last template at lower template top down the runner is by supreme slope setting down. According to the utility model, the aggregate cavity is arranged between the lower template and is used for temporarily storing injected sizing materials, and injection molding is completed from bottom to top through the main runner and the speed reduction runner, so that the flow speed of the sizing materials is reduced, the plumpness after filling is improved, the occurrence of material shortage is avoided, and the qualification rate of finished products is improved.
Description
Technical Field
The utility model belongs to the technical field of injection molds, and particularly relates to an injection mold with high filling degree.
Background
Injection molding is a method for producing and modeling industrial products, and thermoplastic plastics or thermosetting materials are generally manufactured into plastic products with various shapes by utilizing plastic molding dies.
When the injection mold is used for injection molding, molten sizing material is injected through a feeding hole, then is taken out after pressure maintaining and cooling molding in a cavity, and is injected into the cavities in the upper mold plate and the lower mold plate from top to bottom when the existing injection mold is used for injection molding, so that the flow speed of the molten sizing material is high under the influence of gravity, the condition of incomplete filling is easy to occur, partial material shortage of a product can be caused after mold opening, and the qualification rate of the product is influenced.
Disclosure of utility model
The utility model aims to overcome the defect of incomplete filling caused by glue feeding from top to bottom in the prior art, and provides an injection mold with high filling degree.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an injection mold with high filling, comprising:
Lower bolster, offer lower template groove at lower template top, set up lower template, the body coupling of lower template inslot is in protruding, the setting at lower template top down between template and the lower bolster aggregate the chamber, with aggregate the sprue that the chamber links to each other, set up the main cold charge well at sprue both ends, with the sprue links to each other down the runner, set up down the vice cold charge well on the template and be located protruding outside down, set up down the last template at template top set up last template bottom and with protruding matched with die cavity and liftable run through the ejector pin of lower template and lower template down, down the runner by supreme slope setting down.
Optimally, the device also comprises an upper template arranged at the top of the lower template, an upper template groove arranged at the bottom of the upper template, a material pipe fixed in the upper template, a transition groove arranged in the material pipe and a guide groove arranged in the material pipe and communicated with the transition groove and the material collecting cavity;
The upper template is fixed in an upper template groove, and the diameter of the guide groove is gradually increased from top to bottom.
Optimally, the device also comprises a trepanning arranged in the lower die plate, a guide sleeve fixed in the trepanning and a guide post penetrating through the guide sleeve, wherein the guide post is fixed at the bottom of the upper die plate.
Optimally, the device also comprises a clamping groove formed in the top of the upper template, a clamping plate integrally connected to the top of the material pipe, a feeding groove formed on the clamping plate and communicated with the transition groove, and a heat preservation sleeve sleeved on the material pipe;
The clamping plate is fixed in the clamping groove.
Optimally, the lifting device also comprises a supporting plate fixed at the bottom of the lower template, a lapping plate integrally connected with the inner side of the supporting plate and a lifting plate arranged on the lapping plate in a lifting manner, and the ejector rod is fixed on the lifting plate.
Optimally, the lifting plate further comprises a positioning sleeve embedded in the lifting plate and a positioning column penetrating through the positioning sleeve, and the positioning column is fixed at the bottom of the lower template.
Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
according to the injection mold with high filling degree, the aggregate cavity is arranged between the lower template and used for temporarily storing injected sizing materials, and injection molding is completed from bottom to top through the main runner and the speed reducing runner, so that the flow speed of the sizing materials is reduced, the filling fullness is improved, the occurrence of a material shortage condition is avoided, and the design of the main cold material well and the auxiliary cold material well is used for storing cold material heads at the front end of the sizing materials, so that the qualification rate of finished products is improved;
Further, by means of the guiding function of the guide sleeve on the guide post, the positions of the upper template and the lower template can be ensured to be correct, and the situation that pouring fails due to dislocation is avoided;
Further, the design of gradually expanding the diameter of the guide chute from top to bottom is convenient for the downward flow of the sizing material;
Further, the heat preservation sleeve sleeved on the material pipe is used for carrying out heat preservation treatment on the rubber material in the material pipe, and the rubber material is prevented from being cooled in advance.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the present utility model with the upper template removed;
FIG. 3 is a schematic view of a partial structure of the present utility model;
FIG. 4 is a schematic view of a partial structure of the present utility model;
FIG. 5 is a schematic view of the lower die plate of the present utility model;
FIG. 6 is a schematic view of the structure of the upper mold plate of the present utility model;
FIG. 7 is a schematic view of the bottom structure of the upper die plate of the present utility model;
FIG. 8 is a cross-sectional view of an upper die plate of the present utility model;
FIG. 9 is a schematic view of the structure of the pipe of the present utility model;
FIG. 10 is a cross-sectional view of a feed tube of the present utility model;
FIG. 11 is a schematic view of the structure of the upper template of the present utility model;
FIG. 12 is a schematic view of the structure of the bottom of the upper template of the present utility model;
FIG. 13 is a schematic view of the lower plate of the present utility model;
FIG. 14 is a top view of a lower template of the present utility model;
reference numerals illustrate:
1. A lower template; 2. a lower plate groove; 3. trepanning; 4. a guide sleeve; 5. a guide post; 6. an upper template; 7. an upper template groove; 8. a clamping groove; 9. a first thermal insulation sleeve; 10. a first pipe groove; 11. a limit groove; 12. a material pipe; 13. a clamping plate; 14. a feed chute; 15. a transition groove; 16. a guide groove; 17. a limiting block; 18. a thermal insulation sleeve; 19. a shaping plate is arranged; 20. a second insulation sleeve groove; 21. a second pipe groove; 22. a cavity; 23. a lower template; 24. a protrusion; 25. a collection chamber; 26. a main flow passage; 27. a main cold material well; 28. a speed reducing runner; 29. an auxiliary cold material well; 30. a push rod; 31. a support plate; 32. a butt strap; 33. a lifting plate; 34. positioning columns; 35. and (5) positioning the sleeve.
Detailed Description
The utility model will be further described with reference to examples of embodiments shown in the drawings.
As shown in FIG. 1, the injection mold with high filling degree is a schematic structure diagram of the injection mold, is generally applied to the injection molding industry and is used for injecting a shell of a positioning instrument, and molten sizing material can be filled into the whole cavity during injection molding, so that the condition of incomplete filling is avoided.
As shown in fig. 5, a lower template 1 is schematically shown, and a lower template groove 2 is formed at the top of the lower template 1 for fixing a lower template 23. The four corners of the lower template 1 are provided with sleeve holes 3, and the guide sleeves 4 are fixed in the sleeve holes 3 and used for guiding the lifting movement of the guide posts 5. As shown in fig. 6 to 8, which are schematic structural views of the upper die plate 6, an upper die plate groove 7 is provided at the bottom of the upper die plate 6 for fixing an upper die plate 19. The guide post 5 is fixed at the bottom of the upper template 6 and is inserted in the guide sleeve 4, and when the die is closed or opened, the position of the upper template 6 and the position of the lower template 1 can be ensured by virtue of the guide effect of the guide sleeve 4 on the guide post 5, so that the situation of casting failure caused by dislocation is avoided.
As shown in fig. 6 to 8, the clamping groove 8, the first heat-preserving sleeve groove 9 and the first material pipe groove 10 are vertically arranged on the upper template 6 and coaxially arranged. The clamping groove 8 is used for a subsequent clamping plate 13, the first heat preservation sleeve groove 9 is used for installing a heat preservation sleeve 18, the first material pipe groove 10 is used for installing a material pipe 12 (the first heat preservation sleeve groove 9 and the first material pipe groove 10 are all semicircular, and the other half structure matched with the first heat preservation sleeve groove 9 is arranged on the upper shaping plate 19, so that the heat preservation sleeve 18 and the material pipe 12 are installed together). The limiting groove 11 is formed in the upper die plate 6 and communicated with the clamping groove 8 and used for fixing the limiting block 17 subsequently.
As shown in fig. 9 and 10, the structure of the material pipe 2 is schematically shown, the top of the material pipe 12 is integrally connected with a clamping plate 13, and the clamping plate 13 is disposed in the clamping groove 8. The limiting block 17 is integrally connected to one side of the clamping plate 13 and is fixed in the limiting groove 11 in a screw fastening mode, and the clamping plate 13 is fixed in the clamping groove 8 under the action of the limiting block 17 and the limiting groove 11. The transition groove 15 and the guide groove 16 are vertically arranged in the material pipe 12 and are mutually communicated, the feeding groove 14 is arranged on the clamping plate 13 and is communicated with the transition groove 15, and external molten sizing material is injected into the feeding groove 14 and then flows into the cavity 22 for forming through the transition groove 15 and the guide groove 16. As shown in fig. 10, the guide channel 16 tapers from top to bottom to facilitate the downward flow of gum material.
The heat preservation sleeve 18 is sleeved on the material pipe 12 and is used for carrying out heat preservation treatment on the sizing material in the material pipe 12 so as to avoid the sizing material from being cooled in advance. In actual installation, the material pipe 12 is inserted in a material pipe groove formed by the first material pipe groove 10 and the second material pipe groove 21, the heat preservation sleeve 18 is sleeved on the material pipe 12 and is positioned in a heat preservation sleeve groove formed by the first heat preservation sleeve groove 9 and the second heat preservation sleeve groove 20, and the clamping plate 13 is arranged in the clamping groove 8.
The upper template 19 is fixed in the upper template groove 7 and moves synchronously with the upper template 6. As shown in fig. 11, the second thermal insulation sleeve 20 and the second material tube groove 21 are provided on the upper shaping plate 19 and are coaxially provided (the second thermal insulation sleeve 20 is used in cooperation with the first thermal insulation sleeve 9, and the second material tube groove 21 is used in cooperation with the first material tube groove 10). As shown in fig. 12, the bottom of the upper plate 19 is provided with a cavity 22, and is of a one-die two-cavity design.
As shown in fig. 13 and 14, the lower plate 23 is schematically structured, and the lower plate 23 is fixed in the lower plate groove 2. The bulge 24 is integrally connected to the top of the lower template 23, and the bulge 24 is matched with the cavity 22, and molten sizing material is injected into a gap between the bulge 24 and the cavity 22 during injection molding, so that the structure of the locator shell is formed. The material collecting cavity 25 is arranged between the lower template 23 and the lower template 1, is communicated with the material guiding groove 16, and the external melted sizing material is injected into the material collecting cavity 25 through the material guiding groove 16. The main runner 26 is arranged on the lower template 23 and is communicated with the material collecting cavity 25. The main cold material well 27 sets up at the both ends of sprue 26, and main cold material well 27 is used for storing the cold stub bar that produces during moulding plastics, improves the effect of moulding plastics.
The down flow channel 28 is formed on the protrusion 24 and is communicated with the main flow channel 26, in this embodiment, the down flow channel 28 is obliquely arranged from bottom to top, and when the molten rubber flows to the down flow channel 28 during actual injection molding, the molten rubber is injected from bottom to top, so that the whole cavity 22 can be ensured to be filled with the rubber, and the situations of material shortage and sand hole removal are avoided. The auxiliary cold material well 29 is formed on the lower shaping plate 23 and is positioned at the side edge of the bulge 24, the sizing material enters gaps in the bulge 24 and the cavity 22 through the speed reduction runner 28, along with the flowing of the sizing material, the temperature of the front end part of the sizing material is different from the temperature of the sizing material which is continuously injected subsequently, and cracks can be generated after forming, so that the sizing material which is cooled in advance is stored by arranging the auxiliary cold material well 29, and as shown in fig. 14, the auxiliary cold material wells 29 are arranged on three groups of side edges of the bulge 24 so as to improve the qualification rate of injection molding products.
As shown in fig. 2 to 4, a support plate 31 is fixed to the bottom of the lower die plate 1 by means of screw fastening for supporting the lower die plate 1. The access plate 32 is integrally connected to the bottom inside of the support plate 31 for carrying the lifting plate 33. The lifting plate 33 is mounted between the two sets of the attachment plates 32, and is driven by an external lifting cylinder (the lifting cylinder is not shown in the figure) to perform lifting movement. The ejector rods 30 are provided with a plurality of groups, one ends of the ejector rods are fixed on the lifting plate 33, the other ends of the ejector rods penetrate through the lower template 1 and the lower template 23, and the molded product is ejected out under the action of the lifting plate 33.
The locating sleeve 35 is embedded in the lifting plate 33, one end of the locating column 34 is fixed at the bottom of the lower template 1, and the other end of the locating column is arranged in the locating sleeve 35 in a penetrating way. When the lifting plate 33 is lifted, the positioning sleeve 35 is driven to synchronously lift along the positioning column 34, so that the ejector rod 30 is prevented from shaking.
The injection molding process of the injection mold with high filling degree is as follows:
And injecting external molten sizing material into the feed chute 14, entering the aggregate cavity 25 through the transition chute 15 and the guide chute 16, flowing the sizing material into a gap between the cavity 22 and the bulge 24 through the main runner 26 and the deceleration runner 28, opening the upper template 6 and the upper template 19 after molding and pressure maintaining, and lifting the lifting plate 33 by a lifting cylinder, wherein the lifting plate 33 is driven to lift out the molded product by the ejector rod 30.
The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.
Claims (6)
1. An injection mold with high filling degree, characterized in that it comprises:
Lower bolster (1), set up lower template groove (2) at lower bolster (1) top, set up lower template (23) in lower template groove (2), an organic whole connection are in protruding (24) at lower template (23) top, set up aggregate cavity (25) between lower template (23) and lower bolster (1), with main runner (26) that aggregate cavity (25) link to each other, set up main cold charge well (27) at main runner (26) both ends, with speed reduction runner (28) that main runner (26) link to each other, set up vice cold charge well (29) on lower template (23) and be located protruding (24) outside, set up upper template (19) at lower template (23) top, set up upper template (19) bottom and with protruding (24) matched with die cavity (22) and liftable run through ejector pin (30) of lower template (1) and lower template (23), speed reduction runner (28) are set up by supreme slope down.
2. The high-filling injection mold of claim 1, wherein: the device also comprises an upper template (6) arranged at the top of the lower template (1), an upper template groove (7) arranged at the bottom of the upper template (6), a material pipe (12) fixed in the upper template (6), a transition groove (15) arranged in the material pipe (12) and a guide groove (16) arranged in the material pipe (12) and connected with the transition groove (15) and the material collecting cavity (25);
the upper template (19) is fixed in the upper template groove (7), and the diameter of the guide groove (16) is gradually increased from top to bottom.
3. The high-filling injection mold of claim 2, wherein: the novel guide sleeve comprises a lower die plate (1), a sleeve hole (3) formed in the lower die plate (1), a guide sleeve (4) fixed in the sleeve hole (3) and a guide post (5) penetrating through the guide sleeve (4), wherein the guide post (5) is fixed at the bottom of an upper die plate (6).
4. A high-filling injection mold according to claim 3, characterized in that: the feeding device further comprises a clamping groove (8) formed in the top of the upper die plate (6), a clamping plate (13) integrally connected to the top of the material pipe (12), a feeding groove (14) formed in the clamping plate (13) and communicated with the transition groove (15), and a heat preservation sleeve (18) sleeved on the material pipe (12);
the clamping plate (13) is fixed in the clamping groove (8).
5. The high-filling degree injection mold according to claim 4, wherein: the lifting device is characterized by further comprising a supporting plate (31) fixed at the bottom of the lower die plate (1), a butt strap (32) integrally connected with the inner side of the supporting plate (31) and a lifting plate (33) arranged on the butt strap (32) in a lifting manner, wherein the ejector rod (30) is fixed on the lifting plate (33).
6. The high-filling degree injection mold according to claim 5, wherein: the lifting device further comprises a positioning sleeve (35) embedded in the lifting plate (33) and a positioning column (34) penetrating through the positioning sleeve (35), and the positioning column (34) is fixed at the bottom of the lower die plate (1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2023213515462 | 2023-05-31 | ||
| CN202321351546 | 2023-05-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220923146U true CN220923146U (en) | 2024-05-10 |
Family
ID=90939375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322520026.6U Active CN220923146U (en) | 2023-05-31 | 2023-09-18 | Injection mold with high filling degree |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220923146U (en) |
-
2023
- 2023-09-18 CN CN202322520026.6U patent/CN220923146U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |