CN221437104U - Injection mold capable of automatically demolding without ejector pins - Google Patents
Injection mold capable of automatically demolding without ejector pins Download PDFInfo
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- CN221437104U CN221437104U CN202223525917.2U CN202223525917U CN221437104U CN 221437104 U CN221437104 U CN 221437104U CN 202223525917 U CN202223525917 U CN 202223525917U CN 221437104 U CN221437104 U CN 221437104U
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- 238000002347 injection Methods 0.000 title claims abstract description 46
- 239000007924 injection Substances 0.000 title claims abstract description 46
- 238000001746 injection moulding Methods 0.000 claims abstract description 22
- 238000000465 moulding Methods 0.000 claims abstract description 10
- 229920003023 plastic Polymers 0.000 claims abstract description 8
- 239000004033 plastic Substances 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 238000010586 diagram Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 3
- 239000012943 hotmelt Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model provides an injection mold capable of automatically demolding without ejector pins, which comprises a mold frame, a molding assembly and a pulling plate assembly, wherein the mold frame comprises a top plate, an upper mold plate, a lower mold plate, a supporting plate and a bottom plate; the molding assembly comprises side sliding blocks, inclined guide columns and inserts, an injection molding cavity is formed between the two side sliding blocks, and the top end of each insert penetrates through the lower die plate and then extends to the injection molding cavity; the pull plate assembly comprises a pull plate, an upper screw and a lower screw, wherein the lower screw is movably arranged on the pull plate, and the lower screw is fixedly connected with the lower die plate. According to the injection mold disclosed by the utility model, the ejector pin mechanism is not arranged, during demolding, the upper mold plate and the lower mold plate are firstly opened, the side sliding blocks are matched with the inclined guide posts to laterally demold, and the lower mold plate and the supporting plate are opened again, so that the insert is pulled out from the lower part of the plastic part, a product can automatically fall off, the operation is convenient, the injection mold is convenient to produce and manufacture, the demolding is convenient, the labor intensity is reduced, and the production efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of injection molds, in particular to an injection mold capable of automatically demolding without ejector pins.
Background
The injection molding is a processing method for injecting a hot-melt plastic material into a closed cavity with a required shape in a mold at high speed, cooling and solidifying the plastic material, opening the mold, and taking out the solidified plastic product to obtain a molded product. The existing injection mold is used for ejecting products from the mold by matching the ejector plate and the ejector pins, so that the problems of product clamping, deformation, breakage and the like are easy to occur, the ejector plate and the ejector pins are complex in structure and numerous in quantity, the required production time is long during the production of the injection mold, and the labor intensity is high, so that the structure of the injection mold is required to be researched and improved.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides the injection mold capable of automatically demolding without the ejector pin, which is convenient to produce and manufacture, convenient to demold, capable of reducing labor intensity and improving production efficiency.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
The injection mold comprises a mold frame and a molding assembly, wherein the molding assembly is arranged on the mold frame.
The die carrier comprises a top plate, an upper die plate, a lower die plate, a supporting plate and a bottom plate which are sequentially arranged along a first direction.
The molding assembly comprises two side sliding blocks, inclined guide columns and an insert, wherein each side sliding block is movably arranged on the lower die plate along a second direction, the two side sliding blocks are oppositely arranged, an injection molding cavity is formed between the two side sliding blocks, and the second direction is perpendicular to the first direction; the two inclined guide posts are obliquely arranged on the upper die plate, inclined holes are formed in the side sliding blocks, and each inclined guide post is inserted into the corresponding inclined hole; the insert is arranged on the supporting plate, and the top end of the insert penetrates through the lower die plate and then extends to the injection molding cavity.
Preferably, the device further comprises a pulling plate assembly, wherein the pulling plate assembly comprises a pulling plate, an upper screw and a lower screw, and the pulling plate is arranged on the side edge of the upper template; the upper screw is arranged on the pull plate and fixedly connected with the upper template; the lower screw is movably arranged on the pull plate along the first direction, and is fixedly connected with the lower die plate.
Preferably, the pull plate is provided with a waist-shaped hole extending along the first direction, and the upper screw and the lower screw pass through the waist-shaped hole.
Preferably, a guide groove extending along the first direction is formed in the inner side of the pull plate, the structure of the guide groove is matched with that of the lower screw, the outer end of the lower screw is located in the guide groove, and the inner end of the lower screw is fixedly connected with the lower die plate.
Preferably, the central axis of the upper screw is parallel to the central axis of the lower screw.
Preferably, a first parting plane is arranged between the upper die plate and the lower die plate.
Preferably, a second parting plane is arranged between the lower die plate and the supporting plate.
Preferably, the lower template and the supporting plate are connected by a shutter.
Preferably, a runner port is formed in the top plate, a hot runner is formed in the upper die plate, and the hot runner is respectively communicated with the runner port and the injection molding cavity.
Preferably, two injection molding cavities are arranged between the two side sliding blocks, the number of the inserts is two, and the two inserts are in one-to-one correspondence with the two injection molding cavities.
Compared with the prior art, the utility model has the beneficial effects that: according to the injection mold disclosed by the utility model, the ejector pin mechanism is not arranged, during demolding, the upper mold plate and the lower mold plate are firstly opened, the side sliding blocks are matched with the inclined guide posts to laterally demold, and the lower mold plate and the supporting plate are opened again, so that the insert is pulled out from the lower part of the plastic part, a product can automatically fall off, the operation is convenient, the injection mold is convenient to produce and manufacture, the demolding is convenient, the labor intensity is reduced, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of an injection mold with ejector-less automatic demolding according to an embodiment of the present utility model.
FIG. 2 is a schematic view of an injection mold with automatic ejector pin-free demolding according to another embodiment of the present utility model.
FIG. 3 is a side view of a pulling plate assembly in an injection mold with ejector-less automatic stripping in accordance with one embodiment of the present utility model.
Fig. 4 is a schematic diagram of a structure of an injection mold for ejector-pin-free automatic demolding according to an embodiment of the present utility model.
FIG. 5 is a schematic view of another view angle of an injection mold for ejector-less automatic ejection according to an embodiment of the present utility model.
FIG. 6 is a schematic view of a pulling plate assembly in an injection mold with ejector pin-less automatic stripping according to another embodiment of the present utility model.
In the figure, 10-mould frame, 11-top plate, 111-runner mouth, 12-upper mould plate, 121-hot runner, 13-lower mould plate, 131-shutter, 14-supporting plate, 15-bottom plate, 20-forming component, 21-side sliding block, 211-inclined hole, 22-inclined guide pillar, 23-insert, 24-injection mould cavity, 30-pull plate component, 31-pull plate, 311-waist-shaped hole, 312-guide groove, 32-upper screw and 33-lower screw.
Detailed Description
For a further understanding of the objects, construction, features and functions of the utility model, reference should be made to the following detailed description of the preferred embodiments.
Referring to fig. 1 to 5 in combination, fig. 1 is a schematic structural diagram of an injection mold with ejector pin-free automatic demolding according to an embodiment of the present utility model, fig. 2 is a schematic structural diagram of another view angle of an injection mold with ejector pin-free automatic demolding according to an embodiment of the present utility model, fig. 3 is a side view of a pulling plate assembly in an injection mold with ejector pin-free automatic demolding according to an embodiment of the present utility model, fig. 4 is a schematic structural diagram of an injection mold with ejector pin-free automatic demolding according to an embodiment of the present utility model, and fig. 5 is a schematic structural diagram of another view angle of an injection mold with ejector pin-free automatic demolding according to an embodiment of the present utility model.
The utility model relates to an injection mold capable of automatically demolding without ejector pins, which comprises a mold frame 10 and a molding assembly 20, wherein the molding assembly 20 is arranged on the mold frame 10. Specifically, the mold frame 10 includes a top plate 11, an upper mold plate 12, a lower mold plate 13, a pallet 14, and a bottom plate 15, which are sequentially disposed in a first direction X (corresponding to the up-down direction of the injection mold shown in fig. 1 to 5). The molding assembly 20 includes two side slides 21, two inclined guide posts 22 and an insert 23, each side slide 21 is movably disposed on the lower mold plate 13 along a second direction Y (corresponding to the left-right direction of the injection mold shown in fig. 2 and the front-back direction of the injection mold shown in fig. 1, i.e., the direction perpendicular to the paper surface in fig. 1), the two side slides 21 are oppositely disposed, and an injection molding cavity 24 is formed between the two side slides 21, wherein the second direction Y is perpendicular to the first direction X. Two inclined guide posts 22 are provided, each inclined guide post 22 is obliquely arranged on the upper die plate 12, an inclined hole 211 is formed in the side sliding block 21, and each inclined guide post 22 is inserted into the corresponding inclined hole 211. The insert 23 is arranged on the supporting plate 14, and the top end of the insert 23 penetrates through the lower die plate 13 and then extends to the injection molding cavity 24.
Wherein, be equipped with first die joint between cope match-plate pattern 12 and the lower bolster 13, be equipped with the second die joint between lower bolster 13 and the layer board 14. When the die is opened, the die is opened at the first parting surface, and in the process that the lower die plate 13 is far away from the upper die plate 12, the inclined guide posts 22 are matched with the side sliding blocks 21, so that the two side sliding blocks 21 respectively move outwards along the second direction Y, and lateral demolding is realized; and then the die is opened at the second parting surface, the insert 23 is pulled out from the lower part of the product in the process of separating the supporting plate 14 from the lower die plate 13, so that the demolding is realized, and then the product can automatically drop. The injection mold is convenient to produce and manufacture, convenient to demold, capable of reducing labor intensity and improving production efficiency.
In application, the lower die plate 13 and the pallet 14 can be connected by a shutter 131 to increase the die opening resistance between the lower die plate 13 and the pallet 14, so as to ensure that the upper die plate 12 and the lower die plate 13 are opened before the lower die plate 13 and the pallet 14.
In the preferred embodiment of the present utility model, the top plate 11 is provided with a runner port 111 inside, and the upper die plate 12 is provided with a hot runner 121 inside, and the hot runner 121 is respectively communicated with the runner port 111 and the injection cavity 24. In the injection molding process, hot-melt plastic material is injected from the runner port 111, enters the injection molding cavity 24 after passing through the hot runner 121, and is cooled in the injection molding cavity 24 to form a product with a required shape.
In one embodiment, two injection molding cavities 24 are provided between the two side slides 21, two inserts 23 are provided, and the two inserts 23 are in one-to-one correspondence with the two injection molding cavities 24. Thus, injection molding of two products can be performed simultaneously, and the production efficiency is improved. Of course, the present utility model is not limited thereto, and in other embodiments, the number of injection molding cavities 24 may be set reasonably according to actual requirements, and the number of inserts 23 may correspond to the number of injection molding cavities 24.
Referring to fig. 1, in a preferred embodiment of the present utility model, the injection mold further includes a pull plate assembly 30, wherein the pull plate assembly 30 includes a pull plate 31, an upper screw 32 and a lower screw 33, and the pull plate 31 is disposed at a side of the upper mold plate 12. The upper screw 32 is arranged on the pull plate 31, and the upper screw 32 is fixedly connected with the upper template 12. The lower screw 33 is movably provided on the pull plate 31 in the first direction X, and the lower screw 33 is fixedly connected with the lower die plate 13. Preferably, the central axis of the upper screw 32 is parallel to the central axis of the lower screw 33. When the upper die plate 12 and the lower die plate 13 are opened, the lower screws 33 and the lower die plate 13 can synchronously move along the first direction X, and the pull plate assembly 30 can play a guiding role to improve stability.
Referring to fig. 1 and 3 in combination, in some embodiments, the pull plate 31 is provided with a waist-shaped hole 311 extending along the first direction X, and the upper screw 32 and the lower screw 33 pass through the waist-shaped hole 311. When the upper and lower templates 12, 13 are opened, the lower screws 33 can move along the waist-shaped holes 311.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a pulling plate assembly in an injection mold with automatic ejection without ejector pins according to another embodiment of the present utility model, in other embodiments of the present utility model, a guiding groove 312 extending along a first direction X is provided on an inner side of a pulling plate 31, the guiding groove 312 is configured to match with a structure of a lower screw 33, an outer end of the lower screw 33 is located in the guiding groove 312, and an inner end of the lower screw 33 is fixedly connected with a lower mold plate 13. When the upper die plate 12 and the lower die plate 13 are opened, the lower screws 33 can move along the guide grooves 312.
Of course, the utility model is not limited thereto, and other reasonable designs of the pulling plate assembly 30 can be adopted in other embodiments.
In summary, the utility model provides an injection mold with no ejector pin for automatic demolding, no ejector pin mechanism is provided, when demolding, an upper mold plate and a lower mold plate are firstly opened, a side sliding block is matched with an inclined guide post to perform lateral demolding, and the lower mold plate and a supporting plate are opened again, so that an insert is extracted from the lower part of a plastic part, a product can automatically drop, the operation is convenient, the injection mold is convenient to produce and manufacture, the demolding is convenient, the labor intensity can be reduced, and the production efficiency is improved.
The utility model has been described with respect to the above-described embodiments, however, the above-described embodiments are merely examples of practicing the utility model. It should be noted that the disclosed embodiments do not limit the scope of the utility model. On the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.
Claims (10)
1. An injection mold of automatic drawing of patterns of no thimble, its characterized in that: the device comprises a die carrier and a forming assembly, wherein the forming assembly is arranged on the die carrier;
The die carrier comprises a top plate, an upper die plate, a lower die plate, a supporting plate and a bottom plate which are sequentially arranged along a first direction;
The molding assembly comprises two side sliding blocks, inclined guide columns and an insert, wherein each side sliding block is movably arranged on the lower die plate along a second direction, the two side sliding blocks are oppositely arranged, an injection molding cavity is formed between the two side sliding blocks, and the second direction is perpendicular to the first direction; the two inclined guide posts are obliquely arranged on the upper die plate, inclined holes are formed in the side sliding blocks, and each inclined guide post is inserted into the corresponding inclined hole; the insert is arranged on the supporting plate, and the top end of the insert penetrates through the lower die plate and then extends to the injection molding cavity.
2. The ejector-free automatic demolding injection mold as claimed in claim 1, wherein: the device comprises an upper template, a lower template and a pull plate assembly, wherein the pull plate assembly comprises a pull plate, an upper screw and a lower screw, and the pull plate is arranged on the side edge of the upper template; the upper screw is arranged on the pull plate and fixedly connected with the upper template; the lower screw is movably arranged on the pull plate along the first direction, and is fixedly connected with the lower die plate.
3. The ejector-free automatic demolding injection mold as claimed in claim 2, wherein: the pull plate is provided with a waist-shaped hole extending along the first direction, and the upper screw and the lower screw penetrate through the waist-shaped hole.
4. The ejector-free automatic demolding injection mold as claimed in claim 2, wherein: the inner side of the pull plate is provided with a guide groove extending along the first direction, the structure of the guide groove is matched with that of the lower screw, the outer end of the lower screw is positioned in the guide groove, and the inner end of the lower screw is fixedly connected with the lower die plate.
5. The ejector-free automatic demolding injection mold as claimed in claim 2, wherein: the central axis of the upper screw is parallel to the central axis of the lower screw.
6. The ejector-free automatic demolding injection mold as claimed in claim 1, wherein: a first parting surface is arranged between the upper die plate and the lower die plate.
7. The ejector-free automatic demolding injection mold as claimed in claim 6, wherein: a second parting surface is arranged between the lower die plate and the supporting plate.
8. The ejector-free automatic ejector-type injection mold of claim 7, wherein: the lower template is connected with the supporting plate by a shutter.
9. The ejector pin-free automatic ejector pin-free injection mold of any one of claims 1-8, wherein: the inside of roof is equipped with the runner mouth, the inside of cope match-plate pattern is equipped with the hot runner, the hot runner with the runner mouth the die cavity of moulding plastics communicates respectively.
10. The ejector pin-free automatic ejector pin-free injection mold of any one of claims 1-8, wherein: two injection molding cavities are arranged between the two side sliding blocks, and the two inserts are in one-to-one correspondence with the two injection molding cavities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223525917.2U CN221437104U (en) | 2022-12-29 | 2022-12-29 | Injection mold capable of automatically demolding without ejector pins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223525917.2U CN221437104U (en) | 2022-12-29 | 2022-12-29 | Injection mold capable of automatically demolding without ejector pins |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221437104U true CN221437104U (en) | 2024-07-30 |
Family
ID=92056372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223525917.2U Active CN221437104U (en) | 2022-12-29 | 2022-12-29 | Injection mold capable of automatically demolding without ejector pins |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221437104U (en) |
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2022
- 2022-12-29 CN CN202223525917.2U patent/CN221437104U/en active Active
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