CN208529619U - A kind of injection mold - Google Patents
A kind of injection mold Download PDFInfo
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- CN208529619U CN208529619U CN201821073045.1U CN201821073045U CN208529619U CN 208529619 U CN208529619 U CN 208529619U CN 201821073045 U CN201821073045 U CN 201821073045U CN 208529619 U CN208529619 U CN 208529619U
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Abstract
The utility model relates to injection mold technologies more particularly to a kind of for being molded the injection mold of big wall thickness product.For the density and intensity for improving the big wall thickness product that injection molding is formed, the utility model proposes a kind of injection molds comprising cover half seat, solid plate and type core are provided with the cover half slot being mutually communicated and type core slot on cover half seat；Solid plate is fixed in cover half slot and is provided with the type chamber with the perforation of type core slot；Core package includes rear cavity, ejector sleeve, floating spring and front cavity, rear cavity is nested in ejector sleeve, the bottom end of rear cavity is arranged in floating spring, and the elastic force of floating spring is less than injection pressure, and front cavity is arranged in the top of rear cavity and is provided with the feeding-passage being connected to type chamber；Type core is inserted into type core slot, and floating spring is located at the bottom of type core slot, and ejector sleeve runs through cover half seat, and front cavity buckles on solid plate and covers type chamber.The density and intensity that injection molding forms big wall thickness product can be improved using the injection mold.
Description
Technical field
The utility model relates to injection mold technologies more particularly to a kind of for being molded the injection mould of big wall thickness product
Tool.
Background technique
In injection molding production, when the wall thickness of injecting products is more than 3mm, then it is assumed that the injecting products are big wall thickness product.
The existing mold cavity volume for being used to be molded the injection mold for producing such big wall thickness product is excessive, the air mistake in the intracavitary portion of type
It is more, in injection moulding process, injection molding production can not be caused to obtain by the intracavitary air of type fast and effeciently from the intracavitary discharge of type
There can be many bubbles in big wall thickness product, be found through examining, the bubble number on single section of such big wall thickness product is general
It is 5-6, and maximum bubble diameter can reach 2mm.It can be seen that producing big wall using the injection molding of existing injection mold
When thick product, the big wall thickness product density produced is relatively low, and intensity is inadequate, is unable to satisfy requirement.
Utility model content
For the density and intensity for improving the big wall thickness product that injection molding is formed, the utility model proposes a kind of injection molds, should
Injection mold includes cover half seat, solid plate and type core, and cover half slot and type core slot, and the type core slot are provided on the cover half seat
It is penetrated through with the cover half slot；The solid plate is fixed in the cover half slot, and type chamber is provided in the middle part of the solid plate,
And the type chamber and the type core slot penetrate through；
The core package includes rear cavity, ejector sleeve, floating spring and front cavity, and the rear cavity is stair-stepping cylinder knot
Structure, and the outer diameter on the top of the rear cavity is greater than the outer diameter of the bottom end of the rear cavity；The rear cavity is nested in the department
On cylinder, the bottom end of the rear cavity is arranged in the floating spring, and the elastic force of the floating spring is less than injection pressure, described
The top of the rear cavity is arranged in front cavity, and the feeding-passage being connected to the type chamber is provided in the front cavity；
When in the type core inserting to the type core slot, the floating spring is located at the bottom of the type core slot, the department
The bottom end of cylinder and the bottom end of the rear cavity are located in the type core slot, the top position of the top of the ejector sleeve and the rear cavity
It is intracavitary in the type, and the ejector sleeve runs through the cover half seat, the front cavity buckles on the solid plate and gland residence
State type chamber.
It being molded using the injection mold during forming big wall thickness product, injection molding machine is intracavitary by melted material injection type,
Melted material acts in rear cavity in the intracavitary formation injection pressure of type, and then floating spring is forced to compress, and rear cavity is to moving down
Dynamic until meeting the size of big wall thickness product, through supercooling, melted material is cooled and shaped to form big wall thickness product, and die sinking ejection is big
Wall thickness product, primary injection molding are completed.When die sinking ejects big wall thickness product, floating spring promotes type core to reset using elastic force.It is comprehensive
Above as it can be seen that when being molded to form big wall thickness product using the injection mold, the type chamber in injection mold is movable structure, and is being infused
Before entering melted material, type chamber is in minimum state, during injecting melted material, the volume of type chamber with injection melting
The volume of material increases and increases, it can be seen that, open ended air is less in type chamber, so as to reduce the big of injection molding formation
Bubbles volume existing for wall thickness product and bubble volume, and then improve the density and intensity of the big wall thickness product that injection molding is formed.
Preferably, the type core further includes guide sleeve, which is set in the rear cavity and embedded in the type core slot
It is intracavitary with the type.In this way, guiding the direction of motion of control rear cavity using guide sleeve in injection moulding process, can avoid because of rear mold
The direction of motion of benevolence shifts and the shape of the wall thickness product of injection molding formation and size is caused to be unable to meet production requirement.Into one
Step, it is provided with card slot on the outer wall of the guide sleeve, which is connected together with the fixture block being arranged on the type core slot inner wall.
Guide sleeve is fixed in type core slot in this way, being connected together using fixture block and guide sleeve, structure is simple, is fixed conveniently and is not susceptible to mistake
Position, and then improve the guiding accuracy of guide sleeve.
Preferably, it is provided with discharge chamber on the solid plate, which is disposed around the surrounding of the type chamber, the exhaust
The intracavitary exhaust panelling for being provided with annular.In this way, melted material can be by the intracavitary air of type from discharge chamber in injection moulding process
Discharge, is further reduced the intracavitary air capacity of type, while melted material being avoided to spill in discharge chamber, to further increase injection molding
The density and intensity of the big wall thickness product formed.Further, multiple exhaust inserts being parallel to each other are stacked in the discharge chamber
Plate.It is further preferred that the exhaust panelling is fixed in the discharge chamber by fixing screws.In this way, being folded in discharge chamber
Multiple exhaust panellings are set, exhaust efficiency can be improved；It is fixed in discharge chamber using fixing screws by panelling is vented, can avoid exhaust
Panelling is displaced or misplaces in injection moulding process, influences the shape and size for the big wall thickness product that injection molding is formed.
Preferably, the feeding-passage in the front cavity is " convex " font chamber, and is arranged in the big opening end of the feeding-passage
Have preceding mould mold insert, which covers the type chamber, and be provided on the preceding mould mold insert connection feeding-passage and
The feed inlet of the type chamber.In this way, feeding-passage can be reduced using feed inlet connection feeding-passage and type chamber in preceding mould mold insert
Connection bore between type chamber, and then reduce the connection area between the injection molding material handle formed and product, then reduce subsequent
The workload of removal material handle.
Preferably, the thimble pipe of the middle part setting installation thimble of the ejector sleeve.In this way, in injection moulding process, it is available
The intracavitary air of thimble pipe discharge type improves the exhaust performance of the utility model injection mold, and then improves the big of injection molding formation
The density and intensity of wall thickness product.
Preferably, the front cavity covers the solid plate, and the top of the top surface of the front cavity and the solid plate
Face form and dimension is all the same.In this way, both can use front cavity covers solid plate, avoid solid plate especially type core de-
It falls, and facilitates processing and manufacturing front cavity, while the consumptive material of manufacture front cavity can be saved, reduce cost.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of the utility model injection mold；
Fig. 2 is the schematic cross-sectional view that the utility model injection mold is in use state；
Backsight schematic cross-sectional view when Fig. 3 is the injection mold dismounting front cavity in Fig. 2.
Specific embodiment
In the following, the utility model injection mold is described in detail in conjunction with Fig. 1-3.
As shown in Figure 1,2 and 3, the utility model injection mold includes cover half seat 1, solid plate 2 and type core 3.Wherein, cover half
It is provided with cover half slot and type core slot on seat 1, and type core slot is mutually communicated with cover half slot, it is fixed that solid plate 2 and type core 3 are mounted on
On die holder 1.
Solid plate 2 is fixed in cover half slot, and the middle part of solid plate 2 is provided with the type chamber 21 with the perforation of type core slot,
In this way, by 3 pass-through chamber 21 of type core and can be plugged in type core slot.Preferably, it is provided with discharge chamber on solid plate 2, the exhaust
Chamber is disposed around the surrounding of type chamber 21, and the exhaust panelling 22 of annular is provided in discharge chamber.In this way, in injection moulding process, melting
The air in type chamber 21 can be discharged from discharge chamber for material, the air capacity being further reduced in type chamber 21, while avoid melting
Material is spilt in discharge chamber, to further increase the density and intensity for the big wall thickness product that injection molding is formed.Preferably, discharge chamber
Multiple exhaust panellings 22 being parallel to each other inside are stacked with, and these exhaust panellings 22 are fixed on discharge chamber by fixing screws 23
It is interior.In this way, being stacked multiple exhaust panellings 22 in discharge chamber, exhaust efficiency can be improved；Panelling will be vented using fixing screws 23
22 are fixed in discharge chamber, can avoid exhaust panelling 22 and are displaced or misplace in injection moulding process, influence the big of injection molding formation
The shape and size of wall thickness product.Type core 3 includes rear cavity 31, ejector sleeve 32, floating spring 33, guide sleeve 34 and front cavity 35,
In, rear cavity 31 is stair-stepping cylindrical structure, and the outer diameter on the top of rear cavity 31 is greater than the outer diameter of the bottom end of rear cavity 31.
Rear cavity 31 is nested in ejector sleeve 32, and the bottom end of rear cavity 31 is arranged in floating spring 33, and the elastic force of floating spring 33 is less than
Injection pressure, guide sleeve 34 are set in rear cavity 31 and in type core slots and type chamber 21, and front cavity 35 is arranged in rear cavity
31 top, and the feeding-passage 351 being connected to type chamber 21 is provided in front cavity 35.When in the inserting to type core slot of type core 3, float
Spring 33 of moving is located at the bottom of type core slot, and the bottom end of ejector sleeve 32 and the bottom end of rear cavity 31 are located in type core slot, the top of ejector sleeve 32
End and the top of rear cavity 31 are located in type chamber 21, and ejector sleeve 32 runs through cover half seat 1, and front cavity 35 buckles on solid plate 2 simultaneously
Cover type chamber 21.Preferably, the thimble pipe of the middle part setting installation thimble 4 of ejector sleeve 32.In this way, in injection moulding process, it can
Using the air in thimble pipe discharge type chamber 21, the exhaust performance of injection mold is improved, and then improves the big wall thickness that injection molding is formed
The density and intensity of product.Preferably, it is provided with card slot 341 on the outer wall of guide sleeve 34, the card slot 341 and setting are in type core slot
Fixture block 11 on wall is connected together.In this way, the direction of motion of control rear cavity 31 is guided using guide sleeve 34 in injection moulding process,
The shape and size that can avoid the wall thickness product for causing injection molding to be formed because the direction of motion of rear cavity 31 shifts can not expire
Sufficient production requirement；It is connected together using fixture block 11 and guide sleeve 34 and guide sleeve 34 is fixed in type core slot, structure is simple, is fixed conveniently
And it is not susceptible to misplace, and then improve the guiding accuracy of guide sleeve 34.Preferably, the feeding-passage 351 in front cavity 35 is " convex "
Font chamber, and preceding mould mold insert 352 is provided in the big opening end of the feeding-passage 351, which covers type chamber 21,
And the feed inlet 3521 of connection feeding-passage 351 and type chamber 21 is provided on preceding mould mold insert 352.In this way, utilizing preceding mould mold insert 352
In feed inlet 3521 be connected to feeding-passage 351 and type chamber 21, the connector between feeding-passage 351 and type chamber 21 can be reduced
Diameter, and then reduce the connection area between the material handle 51 and big wall thickness product 5 that injection molding is formed, then reduce subsequent removal material handle 51
Workload.Preferably, front cavity 35 covers solid plate 2, and the top surface shape of the top surface of front cavity 35 and solid plate 2 and big
It is small all the same.In this way, both can use front cavity 35 covers solid plate 2, the especially type core 3 of solid plate 2 is avoided to fall off, and side
Just front cavity 35 is fabricated, while the consumptive material of manufacture front cavity 35 can be saved, reduces cost.
It being molded using the injection mold during forming big wall thickness product, injection molding machine is intracavitary by melted material injection type,
Melted material acts in rear cavity in the intracavitary formation injection pressure of type, and then floating spring is forced to compress, and rear cavity is to moving down
Dynamic until meeting the size of big wall thickness product, through supercooling, melted material is cooled and shaped to form big wall thickness product, and die sinking ejection is big
Wall thickness product, primary injection molding are completed.When die sinking ejects big wall thickness product, floating spring promotes type core to reset using elastic force.It is comprehensive
Above as it can be seen that when being molded to form big wall thickness product using the injection mold, the type chamber in injection mold is movable structure, and is being infused
Before entering melted material, type chamber is in minimum state, during injecting melted material, the volume of type chamber with injection melting
The volume of material increases and increases, it can be seen that, open ended air is less in type chamber, so as to reduce the big of injection molding formation
Bubbles volume existing for wall thickness product and bubble volume, and then improve the density and intensity of the big wall thickness product that injection molding is formed.
Claims (9)
1. a kind of injection mold, which is characterized in that the injection mold includes cover half seat, solid plate and type core, on the cover half seat
It is provided with cover half slot and type core slot, and the type core slot and the cover half slot penetrate through；The solid plate is fixed on described fixed
In die cavity, type chamber is provided in the middle part of the solid plate, and the type chamber and the type core slot penetrate through；
The core package includes rear cavity, ejector sleeve, floating spring and front cavity, and the rear cavity is stair-stepping cylindrical structure, and
The outer diameter on the top of the rear cavity is greater than the outer diameter of the bottom end of the rear cavity；The rear cavity is nested in the ejector sleeve,
The bottom end of the rear cavity is arranged in the floating spring, and the elastic force of the floating spring is less than injection pressure, the preceding mould
The top of the rear cavity is arranged in benevolence, and the feeding-passage being connected to the type chamber is provided in the front cavity；
When in the type core inserting to the type core slot, the floating spring is located at the bottom of the type core slot, the ejector sleeve
Bottom end and the bottom end of the rear cavity are located in the type core slot, and the top of the top of the ejector sleeve and the rear cavity is located at institute
It is intracavitary to state type, and the ejector sleeve runs through the cover half seat, the front cavity buckles on the solid plate and covers the type
Chamber.
2. injection mold according to claim 1, which is characterized in that the type core further includes guide sleeve, which is set in
It is in the rear cavity and intracavitary embedded in the type core slot and the type.
3. injection mold according to claim 2, which is characterized in that be provided with card slot on the outer wall of the guide sleeve, the card
Slot is connected together with the fixture block being arranged on the type core slot inner wall.
4. injection mold described in any one of -3 according to claim 1, which is characterized in that the row of being provided on the solid plate
Air cavity, the discharge chamber are disposed around the surrounding of the type chamber, and the exhaust panelling of annular is provided in the discharge chamber.
5. injection mold according to claim 4, which is characterized in that be stacked with multiple be parallel to each other in the discharge chamber
It is vented panelling.
6. injection mold according to claim 5, which is characterized in that the exhaust panelling is fixed on institute by fixing screws
It states in discharge chamber.
7. injection mold described in any one of -3 according to claim 1, which is characterized in that the charging in the front cavity is logical
Road is " convex " font chamber, and preceding mould mold insert is provided in the big opening end of the feeding-passage, which covers the type chamber,
And the feed inlet for being connected to the feeding-passage and the type chamber is provided on the preceding mould mold insert.
8. injection mold described in any one of -3 according to claim 1, which is characterized in that peace is arranged in the middle part of the ejector sleeve
Fill the thimble pipe of thimble.
9. injection mold described in any one of -3 according to claim 1, which is characterized in that the front cavity covers described
Solid plate, and the top surface of the front cavity and the top surface shape and size of the solid plate are all the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821073045.1U CN208529619U (en) | 2018-07-05 | 2018-07-05 | A kind of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821073045.1U CN208529619U (en) | 2018-07-05 | 2018-07-05 | A kind of injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208529619U true CN208529619U (en) | 2019-02-22 |
Family
ID=65388646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821073045.1U Active CN208529619U (en) | 2018-07-05 | 2018-07-05 | A kind of injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208529619U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111016080A (en) * | 2019-12-16 | 2020-04-17 | 白文斌 | Spring-pressing type self-adjusting floating mechanism applied to PCB injection mold |
-
2018
- 2018-07-05 CN CN201821073045.1U patent/CN208529619U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111016080A (en) * | 2019-12-16 | 2020-04-17 | 白文斌 | Spring-pressing type self-adjusting floating mechanism applied to PCB injection mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 633 Qinwan Road, Jinshan Weizhen, Jinshan District, Shanghai 200000 Patentee after: Shanghai Zhaomin New Materials Technology Co., Ltd. Address before: No. 633 Qinwan Road, Jinshan Weizhen, Jinshan District, Shanghai 200000 Patentee before: SHANGHAI ZHAOMIN NEW MATERIAL TECHNOLOGY CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |