CN114536677A - Injection blow molding flow distribution plate - Google Patents
Injection blow molding flow distribution plate Download PDFInfo
- Publication number
- CN114536677A CN114536677A CN202210267452.0A CN202210267452A CN114536677A CN 114536677 A CN114536677 A CN 114536677A CN 202210267452 A CN202210267452 A CN 202210267452A CN 114536677 A CN114536677 A CN 114536677A
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- CN
- China
- Prior art keywords
- injection molding
- injection
- moulding plastics
- flow distribution
- plate body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010102 injection blow moulding Methods 0.000 title claims abstract description 18
- 238000001746 injection moulding Methods 0.000 claims abstract description 101
- 238000004891 communication Methods 0.000 claims abstract description 25
- 239000004033 plastic Substances 0.000 claims description 61
- 229920003023 plastic Polymers 0.000 claims description 61
- 238000000465 moulding Methods 0.000 claims description 52
- 230000008676 import Effects 0.000 claims description 6
- 239000002994 raw material Substances 0.000 abstract description 20
- 238000001125 extrusion Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000002347 injection Methods 0.000 description 12
- 239000007924 injection Substances 0.000 description 12
- 238000012545 processing Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002991 molded plastic Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
- B29C45/2708—Gates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2735—Sprue channels ; Runner channels or runner nozzles for non-coaxial gates, e.g. for edge gates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
- B29C45/2708—Gates
- B29C2045/2709—Gates with a plurality of mould cavity inlets in close proximity
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses an injection blow molding flow distribution plate which comprises a plate body, an injection molding inlet, a first injection molding flow distribution channel and two second injection molding flow distribution channels, wherein the first injection molding flow distribution channel and the two second injection molding flow distribution channels are arranged in the plate body, the injection molding inlet is arranged on the plate body and is communicated with the first injection molding flow distribution channel, the two second injection molding flow distribution channels are coaxial and are arranged in parallel with the first injection molding flow distribution channel, a communication channel is arranged between the first injection molding flow distribution channel and each second injection molding flow distribution channel, each second injection molding flow distribution channel is provided with at least two injection molding outlets communicated with the outside, and all the injection molding outlets are positioned on the same plane of the plate body. The invention has the advantages that: the problem of uneven pressure in the raw materials distribution to the mould from the injection molding machine extrusion mouth at present is solved. The pressure difference of the raw materials flowing out of each injection molding outlet is small, so that the consistency of the injection molding products is improved, and the product quality is ensured.
Description
Technical Field
The invention relates to an injection molding device, in particular to an injection blow molding flow distribution plate.
Background
Injection molding is a common method for manufacturing industrial products, and generally, plastic or rubber is melted and then injected into a mold through an injection molding machine. For a plurality of products which are simultaneously injected, if melted materials are extruded into a mould from an injection molding machine, the pressure of raw materials close to an extrusion port of the injection molding machine is large, and the pressure of raw materials far away from a plurality of outlet positions of the injection molding machine is small, so that the product quality close to the injection port is different from the product quality far away from the injection port, and the product quality is influenced.
Disclosure of Invention
The invention aims to provide an injection blow molding flow distribution plate which can effectively solve the problem of uneven pressure distribution from a raw material of an extrusion port of an injection molding machine to a mold.
In order to solve the technical problems, the invention is realized by the following technical scheme: the utility model provides an injection blow molding flow distribution plate, includes the plate body, moulds plastics the import and set up the first subchannel and two second subchannels of moulding plastics in the plate body, the first subchannel of moulding plastics is followed plate body length direction sets up, the import of moulding plastics is opened on the plate body and with the first subchannel that moulds plastics communicates with each other, two the second subchannel of moulding plastics coaxial line and all with the first subchannel parallel arrangement of moulding plastics, first subchannel and every of moulding plastics all be equipped with the intercommunication way between the subchannel, every the second subchannel of moulding plastics all opens and moulds plastics the export with communicating two at least in the external world, and all the export of moulding plastics all are located the coplanar of plate body.
Furthermore, each second injection molding sub-runner is provided with three injection molding outlets communicated with the outside, one injection molding outlet is coaxial with the communication channel, and the diameter of the injection molding outlet is smaller than that of the communication channel; can connect a plurality of moulds simultaneously or accelerate the speed of moulding plastics to same mould, but can guarantee again that the export of moulding plastics of both sides is unanimous basically with the export pressure of moulding plastics in the middle of, one of them is moulded plastics the export and is said coaxially with the intercommunication, conveniently to the processing of intercommunication way, and the diameter of the export of moulding plastics is less than the diameter that the intercommunication was said, prevents directly from the export of moulding plastics of the raw materials that flows from the intercommunication way and flows, utilizes the bore difference, adjusts the second and moulds plastics the pressure in the subchannel.
Further, the diameter of the injection molding outlet is 0.75-0.8 times of the diameter of the communication channel, the extrusion line efficiency of the injection molding outlet is reduced when the ratio is too small, and the pressure difference of the injection molding outlets in different positions is increased when the ratio is too large.
Furthermore, the plate body is also provided with an access hole which is communicated with the first injection molding sub-runner and is coaxial with the communication channel; can repair the intercommunication way when making the intercommunication way through the inspection hole, prevent that there is the burr to produce, but also the later stage can be maintained the intercommunication way.
Furthermore, the three injection molding outlets are arranged on a straight line, the distances from the injection molding outlets at two ends to the injection molding outlet in the middle are equal, and the injection molding outlet in the middle is coaxial with the communication channel; the three outlets of moulding plastics are favorable to with the mould butt joint on a straight line to the export of moulding plastics of both ends and the export equidistance of moulding plastics in the middle of, well first your export of moulding plastics and intercommunication say the coaxial line, ensure that both ends are moulded plastics the export and are extruded pressure unanimously.
Furthermore, the diameter of the injection molding inlet is equal to the diameter of the first injection molding sub-channel and is larger than the diameter of the communicating channel, the diameter of the injection molding inlet is equal to the diameter of the first injection molding sub-channel, so that raw materials entering the first injection molding sub-channel are dispersed into the first injection molding sub-channel as soon as possible and are larger than the diameter of the communicating channel, the raw materials entering the first injection molding sub-channel are prevented from flowing out of the communicating channel completely, certain pressure is kept in the first injection molding sub-channel, and accordingly the pressure of the raw materials flowing out of the two communicating channels can be guaranteed to be consistent.
Further, the diameter of the first subchannel of moulding plastics is 1.2 ~ 1.3 times of the intercommunication way diameter, and the ratio undersize can lead to two intercommunication say internal pressure unable equilibriums, and the ratio is too big then can make the first subchannel internal pressure of moulding plastics too big, also can lead to extruding efficiency to reduce.
Furthermore, the injection molding inlet and the injection molding outlet are respectively arranged on two opposite planes of the plate body, and the injection molding inlet and the injection molding outlet are respectively arranged on the opposite planes of the plate body, so that the injection molding machine and the mold have more placing spaces, and the interference is avoided.
Compared with the prior art, the invention has the advantages that: through set up two subchannel and a plurality of export of moulding plastics on the flow distribution plate, solve at present from the injection molding machine extrusion mouth raw materials distribution to the uneven problem of pressure in the mould. Set up the first subchannel of moulding plastics and two second in the plate body and mould plastics the subchannel to it has two at least exports of moulding plastics all to open on every second subchannel of moulding plastics, it disperses pressure through the subchannel of moulding plastics behind the flow distribution plate to get into the raw materials, the raw materials pressure dispersion that the subchannel of moulding plastics that utilizes different positions will get into the flow distribution plate is even, thereby make every raw materials pressure of moulding plastics the export outflow differ by little, and then promote the uniformity when product plastic forming, ensure product quality. And two second subchannel coaxial lines of moulding plastics and all with the first subchannel parallel arrangement of moulding plastics are favorable to reducing the processing degree of difficulty, do benefit to the distance of controlling the first subchannel of moulding plastics to two second subchannel of moulding plastics simultaneously, let two second subchannel of moulding plastics can extrude the raw materials simultaneously. And all the injection molding outlets are positioned on the same plane of the plate body, so that gaps are not easy to leave when the mold is butted, and stable butt joint with the mold is realized.
Drawings
FIG. 1 is a cross-sectional view of an injection blow molding manifold of the present invention;
FIG. 2 is a top perspective view of an injection blow molding manifold according to the present invention;
fig. 3 is a perspective view of the bottom surface of an injection blow molding manifold of the present invention.
The reference signs are:
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1 and 3, an embodiment of an injection blow molding flow distribution plate according to the present invention is shown, in which a plate body 1 is a rectangular parallelepiped and has a certain thickness, the direction of the embodiment is based on the direction of fig. 1, an injection inlet 2 is formed in the center of the bottom surface of the plate body 1, a first injection flow distribution channel 3 and two second injection flow distribution channels 5 are formed in the plate body 1, the first injection flow distribution channel 3 is arranged along the length direction of the plate body 1, and penetrates through the entire plate body 1, and plugs are arranged at two ends of the first injection flow distribution channel 3 to seal the first injection flow distribution channel 3, such an arrangement mode is mainly to facilitate the processing of the first injection flow distribution channel 3 and facilitate subsequent maintenance, and the injection inlet 2 is communicated with the first injection flow distribution channel 3 and is located in the middle of the first injection flow distribution channel 3.
The two second injection molding sub-runners 5 are on the same axis, the two second injection molding sub-runners 5 are not directly communicated, each second injection molding sub-runner 5 is communicated with the first injection molding sub-runner 3 through a communication channel 4, and the distances from the two communication channels 4 to the injection molding inlet 2 are equal, so that the pressure of raw materials reaching the communication channels 4 from the first injection molding sub-runners 3 is ensured to be the same. The two second injection molding sub-runners 5 are parallel to the first injection molding sub-runners 3, one ends of the two injection molding sub-runners penetrate through the side wall of the plate body 1 to be communicated with the outside, the arrangement is also convenient for opening the second injection molding sub-runners 5 on the plate body 1, plugs are arranged at the same positions, the second injection molding sub-runners 5 are closed by the plugs in work, and the second injection molding sub-runners 5 can be opened to be overhauled when needed.
As shown in fig. 1 and 2, three injection molding outlets 6 are formed in the top surface of the plate body 1 and at positions corresponding to each second injection molding sub-channel 5, the three injection molding outlets 6 are located on the same straight line, the middle injection molding outlet 6 is coaxial with the communication channel 4, the other two injection molding outlets 6 are symmetrically distributed with the middle injection molding outlet 6, the three injection molding cavities can be simultaneously connected with or simultaneously inject the same mold cavity by the corresponding three injection molding outlets 6 of one second injection molding sub-channel 5, which is beneficial to improving the injection molding efficiency, but the number of the injection molding outlets 6 is not too large, and the pressure of the injection molding outlets 6 far away from the communication channel 4 is reduced due to the excessive injection molding outlets 6.
Certainly, in order to keep enough pressure in the first injection molding branch flow passage 3, so that the pressure of the two raw materials entering the two channels is balanced, the inner diameter of the first injection molding branch flow passage 3 is larger than the inner diameters of the two channels, the diameter of the first injection molding branch flow passage 3 is 1.2-1.3 times of the diameter of the communication passage 4, namely the diameter of the communication passage 4 is 10mm, the diameter of the first injection molding branch flow passage 3 is 12-13 mm, the pressure of the two communication passages 4 is possibly uneven when the ratio is too small, and too large ratio can generate too much obstruction to influence the sending efficiency. The diameter of the injection molding outlet 6 is 0.75-0.8 times of the diameter of the communication channel 4, namely the diameter of the injection molding outlet 6 is 7.5-8 mm, the large proportion of raw materials can flow out from the middle injection molding outlet 6, the flow of the injection molding outlets 6 on the two sides is reduced, pressure imbalance is caused, and the extrusion efficiency is influenced if the proportion is too low.
In addition, two access holes 7 are further formed in the bottom surface of the plate body 1, each communication channel 4 corresponds to one access hole 7, each access hole 7 is also provided with an end cap, the access holes 7 facilitate deburring and other operations on the communication channels 4 after manufacturing, and on the other hand, the communication channels 4 are also convenient to overhaul in later stages.
During the use, aim at the import 2 of moulding plastics with the injection molding machine, will mould plastics the raw materials and extrude into plate body 1 in, and the raw materials gets into and enters into the second through intercommunication way 4 respectively after the first subchannel 3 of moulding plastics, partly export 6 entering mould from moulding plastics in the middle of getting into the mould, partly in addition gets into the mould through remaining export 6 of moulding plastics, owing to have the reposition of redundant personnel pressure-sharing of first subchannel 3 of moulding plastics and second subchannel 5 of moulding plastics, make the raw materials pressure that flows from all exports 6 of moulding plastics equal basically, thereby the quality of the injection moulding product who ensures.
The above description is only an embodiment of the present invention, but the technical features of the present invention are not limited thereto, and any changes or modifications within the technical field of the present invention by those skilled in the art are covered by the present invention.
Claims (8)
1. An injection blow molding flow distribution plate is characterized in that: including the plate body, mould plastics the import and set up the first subchannel and two second subchannels of moulding plastics in the plate body, the first subchannel of moulding plastics is followed plate body length direction sets up, the import of moulding plastics is opened on the plate body and with the first subchannel of moulding plastics communicates with each other, two the second subchannel coaxial line of moulding plastics and all with first subchannel parallel arrangement of moulding plastics, first subchannel and every of moulding plastics all be equipped with the intercommunication way between the subchannel, every the second subchannel of moulding plastics all opens has with the external communicating at least two exports of moulding plastics, all the export of moulding plastics all are located the coplanar of plate body.
2. An injection blow molding manifold as defined in claim 1 wherein: each second injection molding sub-runner is provided with three injection molding outlets communicated with the outside, one injection molding outlet is coaxial with the communication channel, and the diameter of the injection molding outlet is smaller than that of the communication channel.
3. An injection blow molding manifold as defined in claim 2 wherein: the diameter of the injection molding outlet is 0.75-0.8 times of the diameter of the communication channel.
4. An injection blow molding manifold as claimed in claim 2 wherein: and the plate body is also provided with an access hole which is communicated with the first injection molding sub-channel and is coaxial with the communication channel.
5. An injection blow molding manifold as claimed in claim 2 wherein: the three injection molding outlets are arranged on the same straight line, the distances from the injection molding outlets at two ends to the injection molding outlet in the middle are equal, and the injection molding outlet in the middle is coaxial with the communication channel.
6. An injection blow molding manifold as claimed in claim 1 wherein: the diameter of the injection molding inlet is equal to that of the first injection molding sub-runner and is larger than that of the communication channel.
7. An injection blow molding manifold as claimed in claim 1 or 6 wherein: the diameter of the first injection molding sub-runner is 1.2-1.3 times of that of the communicating runner.
8. An injection blow molding manifold as defined in claim 1 wherein: the injection molding inlet and the injection molding outlet are respectively arranged on two opposite planes of the plate body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210267452.0A CN114536677A (en) | 2022-03-17 | 2022-03-17 | Injection blow molding flow distribution plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210267452.0A CN114536677A (en) | 2022-03-17 | 2022-03-17 | Injection blow molding flow distribution plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114536677A true CN114536677A (en) | 2022-05-27 |
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ID=81663295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210267452.0A Pending CN114536677A (en) | 2022-03-17 | 2022-03-17 | Injection blow molding flow distribution plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114536677A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0491332A2 (en) * | 1990-12-19 | 1992-06-24 | Mold-Masters Limited | Multi-cavity melt distribution manifold |
| CN103587058A (en) * | 2013-11-04 | 2014-02-19 | 高精科技(苏州)有限公司 | Pen core plastic mould for electronic pens |
| CN104842511A (en) * | 2015-05-08 | 2015-08-19 | 东莞市凯昶德电子科技股份有限公司 | LED (Light Emitting Diode) support injection moulding die and method |
| CN111070582A (en) * | 2019-12-18 | 2020-04-28 | 青岛海信模具有限公司 | Double-color injection mold |
| CN217531709U (en) * | 2022-03-17 | 2022-10-04 | 杭州中亚机械股份有限公司 | Injection blow molding flow distribution plate |
-
2022
- 2022-03-17 CN CN202210267452.0A patent/CN114536677A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0491332A2 (en) * | 1990-12-19 | 1992-06-24 | Mold-Masters Limited | Multi-cavity melt distribution manifold |
| CN103587058A (en) * | 2013-11-04 | 2014-02-19 | 高精科技(苏州)有限公司 | Pen core plastic mould for electronic pens |
| CN104842511A (en) * | 2015-05-08 | 2015-08-19 | 东莞市凯昶德电子科技股份有限公司 | LED (Light Emitting Diode) support injection moulding die and method |
| CN111070582A (en) * | 2019-12-18 | 2020-04-28 | 青岛海信模具有限公司 | Double-color injection mold |
| CN217531709U (en) * | 2022-03-17 | 2022-10-04 | 杭州中亚机械股份有限公司 | Injection blow molding flow distribution plate |
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