CN219466864U - Runner plate and injection mould - Google Patents
Runner plate and injection mould Download PDFInfo
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- CN219466864U CN219466864U CN202320171488.9U CN202320171488U CN219466864U CN 219466864 U CN219466864 U CN 219466864U CN 202320171488 U CN202320171488 U CN 202320171488U CN 219466864 U CN219466864 U CN 219466864U
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- flow channel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The application relates to the technical field of injection molding equipment, in particular to a runner plate (1) and an injection mold. The runner plate (1) is characterized in that a glue inlet (11) and a plurality of glue outlets are formed in a plate body, and a main runner (12) and a plurality of sub-runners (13) which are communicated with the glue inlet (11) and the glue outlets are formed. When in use, the injection molding machine supplies glue to the glue inlet (11), and can supply glue to different mold cavities through a plurality of glue outlets. The runner plate (1) reduces the assembly time of the injection mold by only forming the runner plate through one plate body, and also does not have the risk that raw materials overflow from a gap of the runner plate (1) under injection pressure, so that the defective rate of products is reduced. In addition, the distances between the main flow channel (12) and the shunt channels (13) are controlled, so that the pressure and the temperature for supplying glue to the plurality of mold cavities can be kept the same, and the defective rate of products generated when injection molding of a plurality of parts is realized simultaneously can be reduced.
Description
Technical Field
The application relates to the technical field of injection molding equipment, in particular to a runner plate and an injection mold.
Background
Injection molding, also known as injection molding, is a method of injection and molding. The injection molding principle of thermosetting plastic is that thermosetting material is added into a material cylinder, the material is pressed into a screw rod by the pressure in the material cylinder, the material is heated by the friction heat of the material when the screw rod rotates, the material is melted to generate fluidity, the thick gelatinous melted material is injected into a pouring gate and a runner of a die and fills a cavity under the strong pressure of the screw rod, and the material is solidified and molded under high temperature and high pressure. The injection molding process can be roughly divided into 6 stages of mold closing, glue injection, pressure maintaining, curing, mold opening and product taking out.
The pouring system of an injection mold is a channel that directs molten plastic from the injector nozzle to a closed mold cavity, typically consisting of a sprue, a runner, a gate and a cold-fill well. Wherein the main runner refers to a plastic channel connecting the injector nozzle and the shunt channel, which is the first component of the runner system. The sub-runner is a plastic channel connecting the main runner and the pouring gate of the internal mold, so that the molten material can flow into the internal mold.
The method has important significance for improving the production efficiency of products by reducing the assembly time of the injection mold.
Disclosure of Invention
In view of this, the present application provides a runner plate and an injection mold for reducing the assembly time of the injection mold.
In a first aspect, in one embodiment of the runner plate provided in the present application, the runner plate is used for a front mold plate of an injection mold, one of two opposite side walls of the runner plate is provided with a glue inlet, the other side wall is provided with a plurality of glue outlets, and the runner plate is provided with a main runner and a plurality of sub runners in the same layer; the middle part of the main runner is communicated with the glue inlet; the first ends of the sub-runners are respectively connected to the main runner, and the distances between the first ends of the sub-runners and the glue inlet are equal; the second ends of the plurality of sub-runners are respectively communicated with the plurality of glue outlets in a one-to-one correspondence manner, and the distances between the first ends and the second ends of the sub-runners are equal.
According to the scheme, the runner plate is provided with the glue inlet, the glue outlets, the main runner and the sub runners, wherein the main runner and the sub runners are communicated with the glue inlet and the glue outlets. When in use, the injection molding machine supplies glue to the glue inlet, and can supply glue to different mold cavities through a plurality of glue outlets. Compared with the original runner plate formed by connecting two plates through assembling screws, the runner plate does not need to use assembling screws, reduces the assembling time of an injection mold, does not have the risk that raw materials overflow from the gap of the runner plate under injection pressure, and reduces the reject ratio of products. In addition, the distances between the main runner and the sub runners are controlled, so that the pressure and the temperature for supplying glue to the mold cavities can be kept the same, and the defective rate of products generated when injection molding of a plurality of parts is realized at the same time can be reduced.
The raw material for injection molding can be BMC (Bulk Molding Compound), namely bulk molding compound, which is a mold pressing intermediate material for manufacturing glass fiber reinforced thermosetting products by a semi-dry method.
In a preferred implementation manner of the flow channel plate provided in the foregoing embodiment, a plurality of the flow channels are connected at one end in the length direction of the main flow channel, and another flow channel is connected at the other end in the length direction of the main flow channel; and a plurality of glue outlets connected with the diversion channel at the same end of the main channel are distributed on the same circumference taking the end of the main channel as the center of a circle.
In a preferred embodiment of the flow channel plate provided in the foregoing embodiment, the glue outlets among the plurality of glue outlets are arranged on one side of the main flow channel in a straight line manner at equal intervals, the other glue outlets are arranged on the other side of the main flow channel in a straight line manner at equal intervals, and the plurality of glue outlets on both sides are symmetrical with respect to the main flow channel.
In a preferred implementation of the flow field plate provided in the above embodiment, the main flow field and the plurality of flow dividing channels are each straight channels and the inner walls are all smooth.
In a preferred implementation manner of the flow channel plate provided in the foregoing embodiment, the main flow channel and the multiple sub flow channels are formed by different drilled holes on the flow channel plate, and the corresponding drilled holes are plugged at the exposed ends of the flow channel plate by sealing screws.
In a preferred implementation manner of the flow channel plate provided in the foregoing embodiment, two ends of the drilled hole corresponding to the main flow channel penetrate through the flow channel plate, and two ends of the drilled hole corresponding to the main flow channel are respectively connected with a sealing screw; one end of the corresponding drilling hole of the shunt channel is communicated with the main channel, and the other end of the corresponding drilling hole is exposed and connected with a sealing screw.
In a preferred implementation of the flow field plate provided in the above embodiment, the primary flow channel and the plurality of flow distribution channels are arranged at an intermediate level of the flow field plate; and the runner plates are respectively provided with cooling waterways in the two side layers of the middle layer.
In a preferred implementation manner of the flow channel plate provided in the foregoing embodiment, two sides of the main flow channel are respectively provided with a plurality of glue outlets which are arranged at equal intervals in a straight line manner; the cooling waterway in the same horizon comprises: and the two sides of the same straight line which are arranged at the plurality of glue outlets are symmetrically provided with at least one straight-through waterway respectively.
In a preferred implementation manner of the flow channel plate provided in the foregoing embodiment, some of the through waterways penetrate through the flow channel plate; and/or two adjacent straight-through waterways are communicated.
In a second aspect, in an embodiment of the injection mold provided herein, the front mold plate of the injection mold includes the runner plate of any of the above embodiments, and a main sprue and a plurality of sub-sprue disposed on the runner plate. One end of the main sprue is connected to the glue inlet of the runner plate, and the other end of the main sprue is used for connecting an injector; one end of each of the plurality of dispensing nozzles is respectively connected to one glue outlet of the runner plate, and the other end of each dispensing nozzle is respectively used for supplying glue to at least one mold cavity of the front mold plate.
Drawings
The above and other features and advantages of the present application will become more apparent to those of ordinary skill in the art by describing in detail preferred embodiments thereof with reference to the attached drawings in which:
fig. 1 is a schematic structural view of a front mold plate of an injection mold according to an embodiment.
Fig. 2 is a schematic structural view of a flow field plate on the front mold plate in fig. 1.
Fig. 3 is a schematic layout view of the glue injection flow channel and the cooling water channel inside the flow channel plate in fig. 2.
Wherein, the reference numerals are as follows:
1-a runner plate; 11-a glue inlet; 12-a main runner; 13-a sub-runner; 14-cooling waterways; 141-a straight water passage;
2-sealing screws; 3-dividing pump nozzles; 4-bolts.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the following examples are given for further details of the present application.
In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
As shown in fig. 1, the front mold plate of the injection mold includes a runner plate 1, and the runner plate 1 is connected to other parts of the front mold plate by a plurality of bolts 4. In connection with fig. 2, the flow conduit plate 1 may be provided with a main pumping nozzle (not shown) and a plurality of sub-pumping nozzles 3. Wherein one end of the main sprue is connected to the glue inlet 11 of the runner plate 1, and the other end is used for connecting an injector. One end of each of the plurality of dispensing nozzles 3 is connected to a glue outlet of the runner plate 1, and the other end of each dispensing nozzle 3 is used for supplying glue to at least one mold cavity of the front mold plate. For example, the raw material output by one of the dispensing nozzles 3 can be supplied to two mold cavities, and when 6 dispensing nozzles 3 are connected to the runner plate 1, 12 mold cavities can be simultaneously supplied with glue, so that 12 parts can be simultaneously injection molded. For example, the part may be the housing of a circuit breaker or other electrical switch.
Referring to fig. 2 and 3, one of two opposite side walls of the runner plate 1 is provided with a glue inlet 11, and the other side wall is provided with a plurality of glue outlets. The runner plate 1 is provided with a main runner 12 and a plurality of sub-runners 13 in the same layer, and the middle part of the main runner 12 is communicated with the glue inlet 11. The first ends of the sub-runners 13 are respectively connected to the main runner 12, and the distances between the first ends of the sub-runners 13 and the glue inlet 11 are equal. The second ends of the sub-runners 13 are respectively communicated with the glue outlets in a one-to-one correspondence manner, and the distances between the first ends and the second ends of the sub-runners 13 are equal.
As can be seen from the above-mentioned scheme, the runner plate 1 of the present application is formed by processing the glue inlet 11 and the glue outlets on one plate body, and the main runner 12 and the sub-runners 13 which are communicated with the glue inlet 11 and the glue outlets. When in use, the injection molding machine supplies glue to the glue inlet 11, and can supply glue to different mold cavities through a plurality of glue outlets. Compared with the original runner plate 1 formed by connecting two plates through assembling screws, the runner plate 1 of the injection mold has the advantages that the assembling screws are not needed, the assembling time of the injection mold is shortened, the risk that raw materials overflow from the gap of the runner plate 1 under the injection pressure is avoided, and the reject ratio of products is reduced. In addition, due to the distance control of the main runner 12 and the shunt 13, the pressure and the temperature for supplying glue to the plurality of mold cavities can be kept the same, which is beneficial to reducing the product reject ratio generated when a plurality of parts are injection molded at the same time. Meanwhile, the integrated flow field plate 1 of the present embodiment can prevent the loss of the raw material pressure caused by the gap, relative to the flow field plate formed by connecting the two shutter plates.
Preferably, the main flow channel 12 and the plurality of sub-flow channels 13 may each be a straight channel and the inner walls may be kept smooth. In this way, the cleaning treatment of the residual raw materials in the main flow path 12 and the branch flow path 13 can be facilitated.
Preferably, the main runner 12 and the plurality of sub-runners 13 are each formed from different drilled holes in the runner plate 1, and the corresponding drilled holes are blocked at the exposed end of the runner plate 1 by the sealing screw 2. In this way, the main flow channel 12 and the plurality of sub-flow channels 13 can be formed on a complete plate body in this way, and the main flow channel 12 and the plurality of sub-flow channels 13 can be cleaned after the seal screw 2 is removed.
Illustratively, two ends of the drilled hole corresponding to the main runner 12 penetrate through the runner plate 1, and two ends of the drilled hole corresponding to the main runner 12 are respectively connected with a sealing screw 2. One end of the corresponding drilled hole of the sub-runner 13 is communicated with the main runner 12, and the other end is exposed and is connected with a sealing screw 2.
Illustratively, referring to fig. 3, a branch flow path 13 among the plurality of branch flow paths 13 is connected to one end of the main flow path 12 in the length direction, and another branch flow path 13 is connected to the other end of the main flow path 12 in the length direction; and a plurality of glue outlets connected to the shunt channels 13 connected to the same end of the main channel 12 are distributed on the same circumference centering on the end of the main channel 12. In this way, the main runner 12, in combination with the sub-runners 13, is arranged in such a way as to easily ensure that the path lengths of the raw material flowing from the main nozzle to the plurality of sub-nozzles 3 are equal, so as to ensure that the temperature and the pressure of the raw material supplied to the different mould cavities are uniform.
In a preferred embodiment, some of the plurality of glue outlets are arranged in a straight line at equal intervals on one side of the main flow channel 12, while the other glue outlets are arranged in a straight line at equal intervals on the other side of the main flow channel 12, and the plurality of glue outlets on both sides are symmetrical with respect to the main flow channel 12. Preferably, each glue outlet can supply glue to two adjacent mould cavities arranged in a direction perpendicular to the main flow channel 12. The plurality of glue outlets are arranged regularly at equal intervals and correspond to the regular arrangement of the mold cavities, so that the space of the mold is fully utilized, and the production efficiency of injection molded parts is ensured.
In a preferred embodiment, with continued reference to fig. 3, the main flow channel 12 and the plurality of sub-flow channels 13 are arranged at an intermediate level of the flow field plate 1; and, the flow channel plate 1 is respectively arranged with cooling waterways 14 in both side levels of the middle level. In this way, the raw materials in the main flow path 12 and the plurality of sub flow paths 13 can be kept in a flowing state under the temperature control of the cooling water path 14, and solidification due to high temperature is avoided. The temperature controller can control the temperature of the inlet water and the outlet water of the cooling water channel 14 so as to keep the inlet water temperature and the outlet water temperature in the cooling water channel 14 within a required range, thereby realizing the control of the temperature of the raw materials in the main flow channel 12 and the sub-flow channels 13 and being beneficial to reducing the reject ratio of products. In addition, since the runner plate 1 is close to the mold core in the injection mold, the mold core is heated by the heating rod, and the influence of the temperature generated by the heating rod on the raw material in the runner plate 1 can be eliminated by the cooling water channel 14.
In a preferred embodiment, with continued reference to fig. 3, the main flow channel 12 has a plurality of glue outlets on both sides thereof, which are arranged in a straight line at equal intervals; the cooling waterway 14 located in the same level includes a plurality of through waterways 141. Wherein, at least one straight-through waterway 141 is symmetrically arranged at both sides of the main runner 12, and at least one straight-through waterway 141 is symmetrically arranged at both sides of the same straight line where the plurality of glue outlets are arranged. For example, in fig. 3, 6 straight-through waterways 141 are included in the same horizon.
Illustratively, a through waterway 141 may extend through the flow field plate 1. For example, in fig. 3, 2 through waterways 141 adjacent to the main waterway 12 are provided to penetrate the flow path plate 1.
Preferably, two adjacent straight-through waterways 141 can be communicated. For example, in fig. 3, the through waterways 141 on both sides of the plurality of glue outlets arranged on the same line are communicated. The two through waterways 141 can be communicated through a drilling hole, and only one side of the drilling hole is blocked by the sealing screw 2. In addition, the two through waterways 141 can also be communicated through an external connecting pipe.
For the sake of clarity of the arrangement of the main flow channel 12, the plurality of sub-flow channels 13 and the cooling water channel 14 within the flow field plate 1, they are all shown in the form of pipes in fig. 3. However, in practice, the main flow channel 12, the plurality of sub-flow channels 13, and the cooling water channel 14 in the flow channel plate 1 are all channels, and it is not necessary to add a physical pipeline.
The application relates to the technical field of injection molding equipment, in particular to a runner plate 1 and an injection mold. The runner plate 1 of the present application is a plate body with a glue inlet 11, a plurality of glue outlets, a main runner 12 and a plurality of sub runners 13, wherein the main runner 12 and the sub runners are communicated with the glue inlet 11 and the glue outlets. When in use, the injection molding machine supplies glue to the glue inlet 11, and can supply glue to different mold cavities through a plurality of glue outlets. The runner plate 1 of the injection mold reduces the assembly time of the injection mold because the runner plate is formed by only one plate body, the risk that raw materials overflow from the gap of the runner plate 1 under injection pressure is avoided, and the reject ratio of products is reduced. In addition, due to the distance control of the main runner 12 and the shunt 13, the pressure and the temperature for supplying glue to the plurality of mold cavities can be kept the same, which is beneficial to reducing the product reject ratio generated when a plurality of parts are injection molded at the same time.
The foregoing description of the preferred embodiments of the present application is not intended to be limiting, but rather is intended to cover any and all modifications, equivalents, alternatives, and improvements within the spirit and principles of the present application. Nouns and pronouns for humans in this patent application are not limited to a particular gender.
Claims (10)
1. The utility model provides a runner board (1), its front mould board that is used for injection mold, its characterized in that, be provided with one on one of two opposite lateral walls of runner board (1) and advance gluey mouth (11), be provided with a plurality of play gluey mouths on the other lateral wall, runner board (1) have arranged in same horizon:
a main runner (12), the middle of which is communicated with the glue inlet (11);
the first ends of the sub-runners (13) are respectively connected to the main runner (12), and the distances between the first ends of the sub-runners (13) and the glue inlet (11) are equal; the second ends of the plurality of sub-channels (13) are respectively communicated with the plurality of glue outlets in a one-to-one correspondence manner, and the distances between the first ends and the second ends of the sub-channels (13) are equal.
2. The flow channel plate (1) according to claim 1, wherein one of the plurality of flow channels (13) is connected to one end in the length direction of the main flow channel (12), and the other flow channel (13) is connected to the other end in the length direction of the main flow channel (12); the method comprises the steps of,
the plurality of glue outlets connected with the diversion channel (13) at the same end of the main channel (12) are distributed on the same circumference taking the end of the main channel (12) as the center of a circle.
3. The flow field plate (1) according to claim 2, characterized in that glue outlets of the plurality of glue outlets are arranged in a straight line at equal intervals on one side of the main flow channel (12), while the other glue outlets are arranged in a straight line at equal intervals on the other side of the main flow channel (12), and that the plurality of glue outlets on both sides are symmetrical with respect to the main flow channel (12).
4. The flow field plate (1) according to claim 2, characterized in that the main flow channel (12) and the plurality of the flow dividing channels (13) are both straight channels and the inner walls are kept smooth.
5. The flow field plate (1) according to claim 2, characterized in that the main flow channel (12) and the plurality of flow dividing channels (13) are each formed by different bores in the flow field plate (1), and that the respective bores are plugged at the exposed end of the flow field plate (1) by means of sealing screws (2).
6. The runner plate (1) according to claim 5, wherein two ends of the corresponding drilled holes of the main runner (12) penetrate through the runner plate (1), and two ends of the corresponding drilled holes of the main runner (12) are respectively connected with a sealing screw (2);
one end of the corresponding drilling hole of the shunt channel (13) is communicated with the main channel (12), and the other end is exposed and connected with a sealing screw (2).
7. The flow field plate (1) according to claim 2, characterized in that the main flow channel (12) and the plurality of sub-flow channels (13) are arranged at an intermediate level of the flow field plate (1); and cooling waterways (14) are respectively arranged in the two side layers of the middle layer of the runner plate (1).
8. The flow channel plate (1) according to claim 7, characterized in that the two sides of the main flow channel (12) are respectively provided with a plurality of glue outlets which are arranged at equal intervals in a straight line manner; the cooling waterway (14) located in the same horizon comprises:
and the plurality of straight-through waterways (141) are symmetrically arranged on two sides of the main runner (12) respectively, and the at least one straight-through waterway (141) is symmetrically arranged on two sides of the same straight line where the plurality of glue outlets are arranged respectively.
9. The flow field plate (1) according to claim 8, characterized in that some of the through waterways (141) extend through the flow field plate (1); and/or the number of the groups of groups,
and two adjacent straight-through waterways (141) are communicated.
10. Injection mold, its characterized in that, injection mold's front template includes:
the flow field plate (1) of any one of claims 1 to 9;
one end of the main sprue gate is connected to the glue inlet (11) of the runner plate (1), and the other end of the main sprue gate is used for being connected with an injection machine;
one end of each of the branch nozzles (3) is connected to a glue outlet of the runner plate (1), and the other end of the branch nozzle (3) is used for supplying glue to at least one mold cavity of the front mold plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320171488.9U CN219466864U (en) | 2023-02-03 | 2023-02-03 | Runner plate and injection mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320171488.9U CN219466864U (en) | 2023-02-03 | 2023-02-03 | Runner plate and injection mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219466864U true CN219466864U (en) | 2023-08-04 |
Family
ID=87434591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320171488.9U Active CN219466864U (en) | 2023-02-03 | 2023-02-03 | Runner plate and injection mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219466864U (en) |
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2023
- 2023-02-03 CN CN202320171488.9U patent/CN219466864U/en active Active
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