CN114506017A - Multi-glue-injection-port mold - Google Patents
Multi-glue-injection-port mold Download PDFInfo
- Publication number
- CN114506017A CN114506017A CN202111422842.2A CN202111422842A CN114506017A CN 114506017 A CN114506017 A CN 114506017A CN 202111422842 A CN202111422842 A CN 202111422842A CN 114506017 A CN114506017 A CN 114506017A
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- cavity
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- needle
- die
- shaped valve
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- 239000000463 material Substances 0.000 claims abstract description 35
- 239000003292 glue Substances 0.000 claims abstract description 17
- 238000004321 preservation Methods 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 3
- 238000001816 cooling Methods 0.000 claims description 30
- 238000005485 electric heating Methods 0.000 claims description 14
- 239000000110 cooling liquid Substances 0.000 claims description 9
- 238000009826 distribution Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 8
- 238000007493 shaping process Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 abstract description 12
- 239000002699 waste material Substances 0.000 abstract description 5
- 238000002347 injection Methods 0.000 description 11
- 239000007924 injection Substances 0.000 description 11
- 238000001746 injection moulding Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000012768 molten material Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
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- 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
-
- 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
-
- 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
- B29C45/2737—Heating or cooling means therefor
-
- 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
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C45/7312—Construction of heating or cooling fluid flow channels
-
- 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
- B29C2045/2683—Plurality of independent mould cavities in a single mould
-
- 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
- B29C45/2737—Heating or cooling means therefor
- B29C2045/2743—Electrical heating element constructions
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to a multi-glue-injection-port mold which comprises a front mold and a rear mold, wherein a plurality of mold cavities for molding a plurality of products are arranged between the front mold and the rear mold, the front mold is provided with a glue inlet, the front mold is provided with a shunting cavity communicated with the glue inlet, the shunting cavity is provided with shunting valves and heat preservation devices, the shunting valves correspond to the mold cavities one by one and communicate the shunting cavities with the middle parts of the mold cavities, and the heat preservation devices are used for preserving heat and heating materials in the shunting cavities. By adopting the scheme, the invention provides the multi-glue-injection-opening die which reduces material waste, improves the forming efficiency and reduces the design difficulty.
Description
Technical Field
The invention relates to the field of molds, in particular to a mold with multiple glue injection openings.
Background
The die is various dies and tools for obtaining required products by injection molding, blow molding, extrusion, die casting, forging and pressing molding, smelting, stamping and other methods in industrial production. The plastic mold is a mold obtained by injecting a molten material into the mold from a glue inlet nozzle, and cooling and molding the material in a cavity.
When a plurality of small parts are injection molded through a traditional mold, sixteen parts are taken as an example, the sixteen parts can be divided into four groups, each group corresponds to one cavity, and a molten material enters the mold from a glue inlet nozzle, flows to the centers of the four cavities which are arranged in a rectangular shape through a main runner, and is then divided into the cavities by branch runners for cooling molding. The injection molding mode has certain disadvantages that firstly, the materials cooled and molded in the main runner and the sub-runners are all waste materials, and the waste materials are required to be removed after molding, which generally accounts for about three parts of the total materials; secondly, the material needs to flow through the main runner and the sub-runners in sequence and then needs to reach the deepest part of the cavity, and the flowing path is long, so that the forming efficiency is reduced; and thirdly, as the path is increased, the factors influencing the forming effect are increased, and the probability of the occurrence of inferior products is correspondingly increased, so that the difficulty in designing the die is increased.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the multi-injection-opening mold which reduces material waste, improves the molding efficiency and reduces the design difficulty.
In order to achieve the purpose, the invention provides the following technical scheme: including front mould and back mould, front mould and back mould between be provided with the die cavity of a plurality of shaping products, the front mould be provided with into jiao zui, its characterized in that: the front mould be provided with the reposition of redundant personnel chamber of advancing gluey mouth UNICOM, the reposition of redundant personnel chamber be provided with flow divider and heat preservation device, flow divider and each die cavity one-to-one and will reposition of redundant personnel chamber and die cavity middle part UNICOM and form the injecting glue mouth, heat preservation device to the material of reposition of redundant personnel intracavity heat preservation heating.
By adopting the technical scheme, the material is sprayed into the branch cavity by the glue inlet nozzle and then is heated and insulated by the heat insulation device, each cavity is directly injected by the branch valve when the material is required to be injected, a main runner and a branch runner through which the material is required to flow in the injection molding process in the traditional structure are omitted, the problems of material waste, low molding efficiency, high design difficulty and the like caused by the material are avoided, the limitation on the quantity of finished products due to the design difficulty is also solved, the single injection molding yield is greatly improved, the glue injection port is positioned in the middle of the cavity, the time for the material to reach each finished product is consistent, the quality of the finished products is better, the traditional structure enters the cavity from the side face, the material enters each finished product in sequence, and the quality of the finished products is influenced.
The invention is further configured to: the flow divider comprises a flow dividing channel, a needle-shaped valve core and a pneumatic driving piece, wherein the flow dividing channel is communicated with the middle parts of the flow dividing cavity and the cavity, a sealing section with a narrowed diameter is arranged at the end part of the flow dividing channel communicated with the middle part of the cavity, and the pneumatic driving piece drives the needle-shaped valve core to axially move in the flow dividing channel and form the cutting-off of the flow dividing channel when the needle-shaped valve core is positioned in the sealing section.
Through adopting above-mentioned technical scheme, the material can get into the position that is close to the die cavity in the reposition of redundant personnel passageway, when pneumatic driving piece drive aciculiform case left the seal section, the material pours into corresponding die cavity into fast, the process of moulding plastics is accomplished to stroke that can be shorter to in time cut off the seal section by aciculiform case after the completion of moulding plastics, improve the shaping efficiency, aciculiform case can more accurate control injection volume, and pneumatic driving piece then the air supply that the rational utilization is on-the-spot has, make the drive structure more retrencied.
The invention is further configured to: the pneumatic driving piece is fixed on the other side of the front die relative to the rear die, and the needle-shaped valve core penetrates through the flow distribution cavity from the pneumatic driving piece and then extends into the flow distribution channel.
Through adopting above-mentioned technical scheme, be fixed in the front mould outside with pneumatic driving piece to pass the break-make that the reposition of redundant personnel passageway was realized to the reposition of redundant personnel chamber by the aciculiform case, compare and set up in inside, the installation and maintain of being more convenient for.
The invention is further configured to: the heat preservation device comprises an electric heating ring, the two needle-shaped valve cores form a group, the electric heating ring surrounds the same group of needle-shaped valve cores, and a plurality of electric heating rings which are axially arranged are correspondingly arranged on each group of needle-shaped valve cores.
By adopting the technical scheme, each electric heating ring simultaneously heats two needle-shaped valve cores, and each group of needle-shaped valve cores correspond to a plurality of electric heating rings which are axially arranged, so that the structure is more simplified, and on the other hand, the materials around the needle-shaped valve cores have better fluidity, so that the needle-shaped valve cores can stretch out and draw back conveniently, the materials can be timely supplemented to the shunt channel, and the materials can be timely injected into the cavity from the glue injection port.
The invention is further configured to: the front die is provided with a cooling plate which is abutted against the die cavities, each die cavity is respectively provided with four sub-type cavities which are arranged in a rectangular mode and used for forming each finished product, the cooling plate is respectively provided with a cooling flow channel corresponding to two adjacent die cavities, each cooling flow channel is in a mouth shape and passes through the sub-die cavities, each mouth shape is provided with a notch, and two ends of each notch extend to the side wall of the cooling plate to form a cooling liquid inlet and a cooling liquid outlet.
Through adopting above-mentioned technical scheme, add the cooling runner, fill in the cooling runner behind the die cavity at the material and let in the coolant liquid and accelerate the material cooling to improve shaping efficiency, set up four sub-die cavities in the die cavity, improve finished product output, the U-shaped cooling runner can flow through each sub-die cavity in proper order and cool off, makes the cooling more comprehensive.
Drawings
FIG. 1 is a perspective view of an embodiment of the present invention;
FIG. 2 is a schematic view of a mold cavity from the perspective of a front mold in accordance with an embodiment of the present invention;
FIG. 3 is a perspective view of a die plate a, a die plate b and a diverter valve according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a distribution chamber according to an embodiment of the present invention;
FIG. 5 is a perspective view of a diverter chamber according to an embodiment of the present invention;
FIG. 6 is a perspective view of a front mold core and a cooling plate according to an embodiment of the present invention;
FIG. 7 is a schematic view of a flow channel of a cooling plate according to an embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., 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, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1-7, the invention discloses a multi-injection mold, comprising a front mold 1 and a rear mold 2, wherein a plurality of cavities 3 for molding a plurality of products are arranged between the front mold 1 and the rear mold 2, the cavities 3 are composed of a front mold core 33 positioned in the front mold 1 and a rear mold core positioned in the rear mold 2, the front mold 1 is provided with a glue inlet 11, the front mold 1 is provided with a branch cavity 12 communicated with the glue inlet 11, the branch cavity 12 is positioned in a mold plate a15 of the front mold 1, the branch cavity 12 is provided with a branch valve 13 and a heat preservation device 14, the branch valve 13 corresponds to each cavity 3 one by one and communicates the branch cavity 12 with the middle part of the cavity 3 to form a glue injection port 31, the heat preservation device 14 preserves heat of materials in the branch cavity 12, the materials are injected into the branch cavity 12 by the glue inlet 11 and then are heated and preserved by the heat preservation device 14, the branch valves 13 are directly injected into each cavity 3 when injection is needed, thereby omitting a main runner and a branch runner which are needed to flow through in the traditional structure in the injection process, and then avoid the extravagant, the shaping inefficiency of material, the high scheduling problem of the design degree of difficulty that consequently bring, also removed because of the restriction of the design degree of difficulty to finished product quantity, improved the output of single injection molding greatly, and injecting glue mouth 31 is located the die cavity 3 middle part, and the time that the material arrived each finished product is unanimous, and finished product quality is more excellent, and traditional structure then gets into the die cavity 3 from the side, and the material gets into each finished product and has the precedence, can influence finished product quality.
In the specific embodiment, fig. 2 illustrates the arrangement of the cavity 3 and the sub-cavity 34 of the whole set of mold by taking the front mold 1 and the front mold core 33 as an example, wherein 8 cavities 3 are provided, each cavity 3 is provided with four sub-cavities 34 which are arranged in a rectangular manner and form each finished product, so that 8 shunt valves 13 are provided and correspond to the cavities 3 one by one, each shunt valve 13 comprises a shunt channel 131, a needle-shaped valve core 132 and a pneumatic driving member 133, the shunt channel 131 is communicated with the middle parts of the shunt cavity 12 and the cavity 3, the end part of the shunt channel 131 communicated with the middle part of the cavity 3 is provided with a sealing section 1311 with a narrowed diameter, the pneumatic driving member 133 drives the needle-shaped valve core 132 to axially move in the shunt channel 131 and form a cut-off of the shunt channel 131 when being located in the sealing section 1311, material can enter the position close to the cavity 3 in the shunt channel 131, when the pneumatic driving member 133 drives the needle-shaped valve core 132 to leave the sealing section 1311, the material is rapidly injected into the corresponding cavity 3, the injection molding process can be completed in a short stroke, the sealing section 1311 is cut off by the needle-shaped valve core 132 in time after the injection molding is completed, the molding efficiency is improved, the injection amount of the needle-shaped valve core 132 can be controlled more accurately, the air source of the pneumatic driving piece 133 on site is reasonably utilized, the driving structure is more simplified, and the pneumatic driving piece 133 is an existing driving device with the air source as a power source and is not detailed.
The pneumatic driving member 133 is fixed on the other side of the front mold 1 relative to the rear mold 2 and is located in the mold plate b16 of the front mold 1, the needle-shaped valve core 132 penetrates through the flow distribution cavity 12 from the pneumatic driving member 133 and then extends into the flow distribution channel 131, the pneumatic driving member 133 is fixed on the outer side of the front mold 1, the needle-shaped valve core 132 penetrates through the flow distribution cavity 12 to realize the on-off of the flow distribution channel 131, and compared with the arrangement in the front mold, the installation and maintenance are more convenient, the recess 111 for accommodating the pneumatic driving member 133 is arranged on the side surface of the glue inlet nozzle 11, and the structure is more compact.
The heat preservation device 14 comprises an electric heating ring 141, two needle-shaped valve cores 132 are in a group, the electric heating ring 141 surrounds the same group of needle-shaped valve cores 132, each group of needle-shaped valve cores 132 corresponds to a plurality of electric heating rings 141 which are axially arranged, each electric heating ring 141 simultaneously heats the two needle-shaped valve cores 132, and each group of needle-shaped valve cores 132 corresponds to a plurality of electric heating rings 141 which are axially arranged, on one hand, the structure is more simplified, on the other hand, materials around the needle-shaped valve cores 132 have better fluidity, the needle-shaped valve cores 132 are convenient to stretch and retract, materials are ensured to be timely supplemented to the shunting channel 131, the materials can be timely injected into the cavity 3 from the glue injection port 31, and as the number of the shunting valves 13 is 8, 4 electric heating rings 141 are provided.
The front mold 1 is provided with a cooling plate 32 which is abutted against the mold cavities 3 and is positioned in a mold plate c17 of the front mold 1, the cooling plate 32 is respectively provided with a cooling flow passage 321 corresponding to two adjacent mold cavities 3, the cooling flow passage 321 is in a mouth shape and passes through a sub-mold cavity 34 (shown by a dotted line in figure 5), the mouth shape is provided with a notch, two ends of the notch extend to the side wall of the cooling plate to form a cooling liquid inlet 322 and a cooling liquid outlet 323, in eight sub-mold cavities 34, four sub-mold cavities 34 are opposite to mouth-shaped corners, two sub-mold cavities 34 are opposite to two ends of the notch, two sub-mold cavities 34 are opposite to the longer side of the mouth shape, the cooling liquid inlet and the cooling liquid outlet are both provided with a pipeline interface 324, the cooling flow passage 321 is additionally arranged, cooling liquid is introduced into the cooling flow passage 321 after the mold cavities 3 are filled with materials to accelerate the cooling of the materials, so as to improve the molding efficiency, four sub-mold cavities are arranged in the mold cavity 3 to improve the yield of finished products, the U-shaped cooling flow passage 321 can sequentially flow through each sub-mold cavity for cooling, so that the cooling is more comprehensive.
Claims (5)
1. The utility model provides a many notes jiao kou mould, includes front mould and back mould, front mould and back mould between be provided with the die cavity of a plurality of shaping products, the front mould be provided with into jiao zui, its characterized in that: the front mould be provided with the reposition of redundant personnel chamber of advancing gluey mouth UNICOM, the reposition of redundant personnel chamber be provided with flow divider and heat preservation device, flow divider and each die cavity one-to-one and will reposition of redundant personnel chamber and die cavity middle part UNICOM and form the injecting glue mouth, heat preservation device to the material of reposition of redundant personnel intracavity heat preservation heating.
2. The multi-gate mold of claim 1, wherein: the flow dividing valve comprises a flow dividing channel, a needle-shaped valve core and a pneumatic driving piece, wherein the flow dividing channel is communicated with the middle parts of the flow dividing cavity and the cavity, a sealing section with a narrowed diameter is arranged at the end part of the flow dividing channel communicated with the middle part of the cavity, and the pneumatic driving piece drives the needle-shaped valve core to axially move in the flow dividing channel and form the cutting-off of the flow dividing channel when the needle-shaped valve core is positioned in the sealing section.
3. The multi-gate mold of claim 2, wherein: the pneumatic driving piece is fixed on the other side of the front die relative to the rear die, and the needle-shaped valve core penetrates through the flow distribution cavity from the pneumatic driving piece and then extends into the flow distribution channel.
4. A multi-gate mold as defined in claim 3, wherein: the heat preservation device comprises an electric heating ring, the two needle-shaped valve cores form a group, the electric heating ring surrounds the same group of needle-shaped valve cores, and a plurality of electric heating rings which are axially arranged are correspondingly arranged on each group of needle-shaped valve cores.
5. The multi-gate mold of claim 1, wherein: the front die is provided with a cooling plate abutted against the die cavities, each die cavity is respectively provided with four sub-cavities which are arranged in a rectangular mode and used for forming each finished product, the cooling plate is respectively provided with a cooling runner corresponding to two adjacent die cavities, the cooling runners are in a mouth shape and pass through the sub-die cavities, the mouth shape is provided with a notch, and two ends of the notch extend to the sides of the cooling plate to form a cooling liquid inlet and a cooling liquid outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111422842.2A CN114506017A (en) | 2021-11-26 | 2021-11-26 | Multi-glue-injection-port mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111422842.2A CN114506017A (en) | 2021-11-26 | 2021-11-26 | Multi-glue-injection-port mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114506017A true CN114506017A (en) | 2022-05-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111422842.2A Pending CN114506017A (en) | 2021-11-26 | 2021-11-26 | Multi-glue-injection-port mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114506017A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115678182A (en) * | 2022-11-14 | 2023-02-03 | 浙江中财管道科技股份有限公司 | High-impact-resistance weather-resistant road cone and manufacturing method thereof |
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