CN211279566U - Runner-free injection molding structure - Google Patents
Runner-free injection molding structure Download PDFInfo
- Publication number
- CN211279566U CN211279566U CN201922353074.4U CN201922353074U CN211279566U CN 211279566 U CN211279566 U CN 211279566U CN 201922353074 U CN201922353074 U CN 201922353074U CN 211279566 U CN211279566 U CN 211279566U
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- upper mold
- nozzle
- mounting seat
- cavity
- injection molding
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 45
- 238000002347 injection Methods 0.000 claims abstract description 30
- 239000007924 injection Substances 0.000 claims abstract description 30
- 239000004033 plastic Substances 0.000 claims abstract description 19
- 229920003023 plastic Polymers 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000000465 moulding Methods 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 238000007493 shaping process Methods 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 4
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 4
- 241001330002 Bambuseae Species 0.000 abstract description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 4
- 239000011425 bamboo Substances 0.000 abstract description 4
- 210000001503 joint Anatomy 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Images
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model provides a runner injection structure exempts from, include the lower mould, go up mould and injection moulding material section of thick bamboo, the lower mould has the die cavity that is used for the shaping product with last between the mould, be equipped with on the injection moulding material section of thick bamboo and penetrate the mouth, when moulding plastics discharge gate and die cavity on penetrating the mouth directly communicate. The utility model has the advantages that the runner-free injection molding structure is arranged, so that the nozzle can directly inject the plastic into the cavity of the mold, the generation of a nozzle material is avoided, the resource is saved, the production cost of an enterprise is reduced, the impact of the upper mold on the lower mold can be slowed down during mold closing, and the damage of the upper mold and the lower mold caused by overlarge impact is avoided; the position of the nozzle can be adjusted, so that the fitting precision of the nozzle and the cavity is adjusted, the product forming quality is improved, and the stability and the accuracy of butt joint of the nozzle and the cavity can be improved.
Description
Technical Field
The utility model relates to an injection molding machine technical field, concretely relates to exempt from runner injection structure.
Background
An injection molding machine, also known as an injection molding machine or an injection machine, is a molding device for making thermoplastic plastics or thermosetting plastics into plastic products of various shapes by using a plastic molding mold, which is mainly divided into a vertical type and a horizontal type. However, the existing injection molding structure usually has a runner on the mold or a hot runner is added on the basis of the runner, and the plastic ejected from the nozzle needs to enter the mold cavity after passing through the runner.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the disappearance that prior art exists, provide a runner injection moulding structure exempts from, it enables to penetrate the mouth and directly penetrates into the die cavity of mould with plastics in, avoids the production of mouth of a river material, saves the resource, reduces the manufacturing cost of enterprise.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a exempt from runner injection structure, includes the lower mould, goes up mould and injection moulding feed cylinder, the lower mould and last mould have the die cavity that is used for the shaping product, be equipped with on the injection moulding feed cylinder and penetrate the mouth, when moulding plastics discharge gate and die cavity on penetrating the mouth directly communicate.
As a preferred scheme, the upper die is provided with an injection molding through hole, and the injection nozzle extends into the injection molding through hole during injection molding so that a discharge hole in the injection nozzle is directly communicated with the cavity.
As a preferred scheme, the outer side of the plastic injection cylinder is provided with an upper die mounting seat for mounting an upper die, and the upper die is movably mounted on the upper die mounting seat.
As a preferred scheme, the upper die is connected with the upper die mounting seat through a guide piece, the axis direction of the guide piece is the same as the axis direction of the plastic injection cylinder, a buffer spring is sleeved on the guide piece between the upper die and the upper die mounting seat, and two ends of the buffer spring are respectively abutted to the upper die and the upper die mounting seat.
Preferably, the guide piece is a guide screw, the upper die and the upper die mounting seat are respectively provided with a threaded hole and a guide hole corresponding to the guide screw, one end of the guide screw is screwed with the upper die through the threaded hole, and the other end of the guide screw is in sliding connection with the upper die mounting seat through the guide hole.
As a preferred scheme, be equipped with adjusting screw on the mould mount pad, adjusting screw's free end stretches into the clearance between mould and the mould mount pad, adjusting screw's free end is contradicted with last mould and is connected.
As an optimal scheme, the free end of the adjusting screw is provided with a convex column, the outer diameter of the convex column is smaller than that of the adjusting screw, the upper die is provided with a concave hole corresponding to the convex column, a limiting plate is arranged between the upper die and the upper die mounting seat, the limiting plate is fixedly connected with the upper die, the adjusting screw is connected with a nut, and the nut is located on one side, away from the limiting plate, of the upper die mounting seat.
As an optimal scheme, a nozzle yielding through hole, a spring yielding through hole and a screw yielding through hole which correspond to the nozzle, the buffer spring and the adjusting screw are respectively arranged on the limiting plate.
As a preferred scheme, an upper cavity and a lower cavity are respectively arranged on the upper die and the lower die, and the upper cavity and the lower cavity are combined to form a die cavity when the dies are closed.
As a preferred scheme, the output end of the plastic injection cylinder is connected with a nozzle mounting seat, the number of the nozzles is at least two, a material distribution channel communicated with the corresponding nozzles is respectively arranged in the nozzle mounting seat, a cavity corresponding to the nozzles is arranged between the upper die and the lower die, and the nozzles are provided with heating rings.
Compared with the prior art, the utility model has obvious advantages and beneficial effects, specifically speaking, through setting up the lower mould, go up mould and annotate the plastics section of thick bamboo, have the die cavity that is used for the shaping product between lower mould and the last mould, set up on annotating the plastics section of thick bamboo and penetrate the mouth, the discharge gate on penetrating the mouth during injection molding is directly communicated with the die cavity, can make to penetrate the mouth and directly penetrate the plastics into the die cavity of mould, can avoid the production of mouth of a river material, save the resource, reduce enterprise manufacturing cost; by arranging the buffer spring, the impact of the upper die on the lower die can be relieved during die assembly, and the damage of the upper die and the lower die caused by overlarge impact is avoided; by arranging the adjusting screw rod, when the free end of the adjusting screw rod is abutted against the upper die during injection molding, the injection molding barrel stops moving, and the position of the nozzle can be adjusted by adjusting the position of the adjusting screw rod, so that the fitting precision of the nozzle and a cavity is adjusted, and the product molding quality is improved; the convex column is arranged at the free end of the adjusting screw rod, the concave hole corresponding to the convex column is arranged on the upper die, the convex column and the concave hole are matched to play a guiding role, and the butt joint stability and accuracy of the nozzle and the cavity can be improved.
To more clearly illustrate the structural features and technical means of the present invention and the specific objects and functions achieved thereby, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments:
drawings
FIG. 1 is a schematic view of an assembly structure according to an embodiment of the present invention;
FIG. 2 is an exploded view of an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of an embodiment of the invention;
FIG. 4 is an exploded view of another embodiment of the present invention;
fig. 5 is a schematic cross-sectional view of another embodiment of the present invention.
The attached drawings indicate the following:
10-lower die; 11-upper mould; 111-injection molding through holes;
112-a threaded hole; 113-concave hole; 12-a mould cavity;
20-injection of plastic cylinder; 201-shooting mouth; 21-an upper die mounting seat;
211-guide holes; 22-a lead screw; 23-a buffer spring;
24-a limiting plate; 241-nozzle abdicating through holes; 242-spring relief through hole;
243-screw abdicating through hole; 25-adjusting the screw; 251-convex column;
26-a nut; 30-nozzle mounting base; 31-material distribution channel.
Detailed Description
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
As shown in fig. 1-3, in this embodiment, a runner-free injection molding structure includes a lower mold 10, an upper mold 11 and an injection molding barrel 20, a cavity 12 for molding a product is provided between the lower mold 10 and the upper mold 11, an upper cavity and a lower cavity are respectively provided on the upper mold 11 and the lower mold 10, the upper cavity and the lower cavity are combined to form the cavity 12 during mold closing, an injection nozzle 201 is provided on the injection molding barrel 20, the upper mold 11 is provided with an injection through hole 111, during injection molding, the injection nozzle 201 extends into the injection through hole 111 to directly communicate a discharge port on the injection nozzle 201 with the cavity 12, an upper mold mounting seat 21 for mounting the upper mold 11 is provided outside the injection molding barrel 20, the upper mold 11 is movably mounted on the upper mold mounting seat 21, the upper mold 11 is connected with the upper mold mounting seat 21 through a guide, the axis direction of the guide is the same as the axis direction of the injection molding barrel 20, a guide sleeve between the upper mold 11 and the upper mold, the two ends of the buffer spring 23 are respectively abutted against the upper die 11 and the upper die mounting seat 21, the guide piece is a guide screw rod 22, the upper die 11 and the upper die mounting seat 21 are respectively provided with a threaded hole 112 and a guide hole 211 corresponding to the guide screw rod 22, one end of the guide screw rod 22 is screwed with the upper die 11 through the threaded hole 112, the other end of the guide screw rod 22 is slidably connected with the upper die mounting seat 21 through the guide hole 211, the upper die mounting seat 21 is provided with an adjusting screw rod 25, the free end of the adjusting screw rod 25 extends into a gap between the upper die 11 and the upper die mounting seat 21, the free end of the adjusting screw rod 25 is abutted against the upper die 11, the injection molding barrel 20 moves downwards during injection molding, when the free end of the adjusting screw rod 25 is abutted against the upper die 11, the injection barrel 20 stops moving, and the position of the injection nozzle 201 can be adjusted by adjusting the position of the, thereby the laminating precision of nozzle 201 and die cavity 12 is penetrated in the adjustment, improves product shaping quality, adjusting screw 25's free end is equipped with projection 251, the external diameter of projection 251 is less than adjusting screw 25's external diameter, it is equipped with shrinkage pool 113 corresponding with projection 251 to go up mould 11, through set up projection 251 at adjusting screw 25's free end, set up in the shrinkage pool 113 that projection 251 corresponds on last mould 11, projection 251 plays the guide effect with the cooperation of shrinkage pool 113, can improve the stability and the accuracy that nozzle 201 and die cavity 12 docked. Go up and be equipped with limiting plate 24 between mould 11 and the last mould mount pad 21, limiting plate 24 and last mould 11 fixed connection, be connected with nut 26 on the adjusting screw 25, nut 26 is located the one side that limiting plate 24 was kept away from to last mould mount pad 21, be equipped with respectively on the limiting plate 24 and let a through-hole 241, spring let a through-hole 242 and screw rod let a through-hole 243 that let a through-hole 241, spring let a through-hole 242 and the screw rod that penetrate that correspond with penetrating mouth 201, buffer spring 23 and adjusting screw 25.
As shown in fig. 4-5, in another embodiment, the difference from the above embodiment is that the output end of the plastic injection cylinder 20 is connected to a nozzle mounting base 30, two nozzles 201 are provided, a material separating channel 31 communicated with the corresponding nozzle 201 is provided in the nozzle mounting base 30, a cavity 12 corresponding to the two nozzles 201 is provided between the upper die 11 and the lower die 10, and a heating ring (not shown in the figure) is mounted on the nozzle 201.
It should be noted that, in the utility model discloses in, limiting plate 24 also can with last mould mount pad 21 fixed connection, adjusting screw 25 sets up in last mould 11, and shrinkage pool 113 sets up in last mould mount pad 21.
It should also be noted that the utility model discloses can be used to vertical injection molding machine, also can be used to horizontal injection molding machine.
To sum up, the utility model has the advantages that the lower die, the upper die and the plastic injection cylinder are arranged, the cavity for molding the product is arranged between the lower die and the upper die, the injection nozzle is arranged on the plastic injection cylinder, the discharge hole on the injection nozzle is directly communicated with the cavity during injection molding, so that the injection nozzle can directly inject the plastic into the cavity of the die, the generation of nozzle materials can be avoided, the resources are saved, and the production cost of enterprises is reduced; by arranging the buffer spring, the impact of the upper die on the lower die can be relieved during die assembly, and the damage of the upper die and the lower die caused by overlarge impact is avoided; by arranging the adjusting screw rod, when the free end of the adjusting screw rod is abutted against the upper die during injection molding, the injection molding barrel stops moving, and the position of the nozzle can be adjusted by adjusting the position of the adjusting screw rod, so that the fitting precision of the nozzle and a cavity is adjusted, and the product molding quality is improved; the convex column is arranged at the free end of the adjusting screw rod, the concave hole corresponding to the convex column is arranged on the upper die, the convex column and the concave hole are matched to play a guiding role, and the butt joint stability and accuracy of the nozzle and the cavity can be improved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, so any modifications, equivalent replacements, improvements, etc. made to the above embodiments by the technology of the present invention are all within the scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a exempt from runner injection structure, its characterized in that includes the lower mould, goes up mould and injection moulding feed cylinder, the lower mould and last mould have the die cavity that is used for the shaping product, be equipped with on the injection moulding feed cylinder and penetrate the mouth, when moulding plastics discharge gate and die cavity direct intercommunication on penetrating the mouth.
2. The runner-free injection molding structure of claim 1, wherein the upper mold is provided with an injection through hole, and the injection nozzle extends into the injection through hole during injection so that a discharge hole on the injection nozzle is directly communicated with the cavity.
3. The runner-free injection molding structure of claim 2, wherein an upper mold mounting seat for mounting an upper mold is arranged on the outer side of the injection molding barrel, and the upper mold is movably mounted on the upper mold mounting seat.
4. The runner-free injection molding structure of claim 3, wherein the upper mold is connected with the upper mold mounting seat through a guide, the axial direction of the guide is the same as the axial direction of the injection plastic cylinder, a buffer spring is sleeved on the guide between the upper mold and the upper mold mounting seat, and two ends of the buffer spring are respectively pressed against the upper mold and the upper mold mounting seat.
5. The runner-free injection molding structure of claim 4, wherein the guiding element is a guiding screw, the upper mold and the upper mold mounting seat are respectively provided with a threaded hole and a guiding hole corresponding to the guiding screw, one end of the guiding screw is screwed with the upper mold through the threaded hole, and the other end of the guiding screw is slidably connected with the upper mold mounting seat through the guiding hole.
6. The runner-free injection molding structure of claim 4, wherein the upper mold mounting seat is provided with an adjusting screw, a free end of the adjusting screw extends into a gap between the upper mold and the upper mold mounting seat, and the free end of the adjusting screw is in abutting connection with the upper mold.
7. The runner-free injection molding structure of claim 6, wherein the free end of the adjusting screw is provided with a convex pillar, the outer diameter of the convex pillar is smaller than the outer diameter of the adjusting screw, the upper mold is provided with a concave hole corresponding to the convex pillar, a limiting plate is arranged between the upper mold and the upper mold mounting seat, the limiting plate is fixedly connected with the upper mold, the adjusting screw is connected with a nut, and the nut is located on one side of the upper mold mounting seat away from the limiting plate.
8. The runner-free injection molding structure of claim 7, wherein the limiting plate is provided with a nozzle abdicating through hole, a spring abdicating through hole and a screw abdicating through hole corresponding to the nozzle, the buffer spring and the adjusting screw respectively.
9. The runner-free injection molding structure of claim 1, wherein the upper mold and the lower mold are respectively provided with an upper cavity and a lower cavity, and the upper cavity and the lower cavity are combined to form a cavity when the molds are closed.
10. The runner-free injection molding structure of claim 1, wherein the output end of the injection molding cylinder is connected with a nozzle mounting seat, the number of the nozzles is at least two, the nozzle mounting seat is respectively provided with a material distribution channel communicated with the corresponding nozzle, a cavity corresponding to the nozzle is arranged between the upper mold and the lower mold, and the nozzle is provided with a heating ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922353074.4U CN211279566U (en) | 2019-12-23 | 2019-12-23 | Runner-free injection molding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922353074.4U CN211279566U (en) | 2019-12-23 | 2019-12-23 | Runner-free injection molding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211279566U true CN211279566U (en) | 2020-08-18 |
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ID=72038442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922353074.4U Active CN211279566U (en) | 2019-12-23 | 2019-12-23 | Runner-free injection molding structure |
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| CN (1) | CN211279566U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110900976A (en) * | 2019-12-23 | 2020-03-24 | 东莞市嘉兴昌机械工业有限公司 | Runner-free injection molding structure |
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2019
- 2019-12-23 CN CN201922353074.4U patent/CN211279566U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110900976A (en) * | 2019-12-23 | 2020-03-24 | 东莞市嘉兴昌机械工业有限公司 | Runner-free injection molding structure |
| CN110900976B (en) * | 2019-12-23 | 2024-08-09 | 东莞市嘉兴昌机械工业有限公司 | Runner-free injection molding structure |
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