CN112743764A - Mold and method for realizing low-pressure injection molding of high-pressure injection molding machine - Google Patents
Mold and method for realizing low-pressure injection molding of high-pressure injection molding machine Download PDFInfo
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- CN112743764A CN112743764A CN202011484624.7A CN202011484624A CN112743764A CN 112743764 A CN112743764 A CN 112743764A CN 202011484624 A CN202011484624 A CN 202011484624A CN 112743764 A CN112743764 A CN 112743764A
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 102
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 20
- 238000000465 moulding Methods 0.000 claims abstract description 16
- 230000008093 supporting effect Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 abstract description 15
- 239000002994 raw material Substances 0.000 abstract description 10
- 238000003825 pressing Methods 0.000 abstract description 4
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 238000007599 discharging Methods 0.000 description 5
- 230000002265 prevention Effects 0.000 description 3
- 238000005056 compaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
- B29C45/2673—Moulds with exchangeable mould parts, e.g. cassette moulds
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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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/30—Mounting, exchanging or centering
- B29C33/305—Mounting of moulds or mould support plates
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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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/30—Mounting, exchanging or centering
- B29C33/308—Adjustable moulds
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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
-
- 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
- B29C45/2725—Manifolds
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a mold and a method for realizing low-pressure injection molding of a high-pressure injection molding machine, wherein a support of a supporting assembly is arranged on one side of a base, a fixed template is arranged on one side of the support far away from the base, a movable template is arranged between the base and the fixed template in a sliding manner, a hydraulic tank and a hydraulic cylinder are arranged between the base and the movable template, the injection molding machine of the injection molding assembly is connected with the fixed template, a shunting shell is arranged on one side of the fixed template, a shunting disc is arranged in the shunting shell and is connected with a mounting seat and the shunting disc, an injection molding channel is arranged around the mounting seat, and an upper mold and a lower mold of the molding. The pre-pressing cavity is formed between the upper die and the lower die, after raw materials are injected through the injection molding channel, the template is moved on the hydraulic cylinder to perform low-pressure extrusion molding on the pre-pressing cavity, and redundant materials are extruded from the discharge port, so that the extrusion efficiency can be improved, and the molding quality can be improved.
Description
Technical Field
The invention relates to the field of injection molds, in particular to a mold and a method for realizing low-pressure injection molding of a high-pressure injection molding machine.
Background
The low-pressure injection molding process is a packaging process method which uses small injection pressure to inject packaging materials into a mold and quickly cures and forms the packaging materials so as to achieve the effects of insulation, temperature resistance, shock resistance, vibration reduction, moisture prevention, water prevention, dust prevention, chemical corrosion resistance and the like. The process originates from the automobile industry in Europe, has been successfully applied in the automobile industry fields of Europe, America, Japan, Korean and the like and the electronic and electrical fields for over ten years, and is still in the initial stage in China at present. The application fields are very wide, including: printed wiring boards, automotive electronics, automotive wiring harnesses, automotive connectors, sensors, microswitches, antennas, and the like. At present, the low-pressure injection molding process mainly adopts a low-pressure injection molding machine to realize the control of injection pressure, but the low-pressure injection molding machine has a complex structure and high price, so that the production cost is high.
When the existing mold adopts a common high-pressure injection molding machine to produce articles, the discharging pressure is high, the discharging is not uniform enough, the bubbles are easily formed by extrusion, and the molding quality is reduced.
Disclosure of Invention
The invention aims to provide a die and a method for realizing low-pressure injection molding by a high-pressure injection molding machine, and aims to solve the problem that the feeding pressure is not uniform enough during extrusion of the existing equipment, so that the molding quality is reduced.
In order to achieve the above object, in a first aspect, the present invention provides a mold for a high pressure injection molding machine to achieve low pressure injection molding, comprising a support assembly, an injection molding assembly and a molding assembly, wherein the support assembly comprises a base, a support, a fixed mold plate, a movable mold plate, a hydraulic cylinder and a hydraulic cylinder, the support is fixedly connected with the base and is located at one side of the base, the fixed mold plate is provided with a feed inlet and a discharge outlet, the feed inlet and the discharge outlet are located at one side of the fixed mold plate, the fixed mold plate is fixedly connected with the support and is located at one side of the support far from the base, the movable mold plate is slidably connected with the support and is located between the base and the fixed mold plate, the hydraulic cylinder is fixedly connected with the base and is located at one side of the base, the hydraulic cylinder is communicated with the hydraulic cylinder, a slide rod of the hydraulic cylinder is fixedly, the injection molding assembly comprises an injection molding machine, a shunting shell, a shunting disc, a mounting seat and an injection molding channel, the injection molding machine is fixedly connected with the fixed mold plate, and is communicated with the feed inlet, the shunt shell is fixedly connected with the fixed template and is positioned on one side of the fixed template close to the movable template, the diverter plate is provided with a plurality of first through holes and is fixedly connected with the diverter shell, and is positioned in the shunting shell, the mounting seat is fixedly connected with the shunting disc and is positioned at one side of the shunting disc, a plurality of injection molding channels are arranged and communicated with the mounting seat, and the forming assembly comprises an upper die and a lower die, the upper die and the lower die are detachably connected with the mounting seat and the movable die plate respectively and are positioned on one side of the mounting seat and one side of the movable die plate.
The mounting seat comprises a seat body and a plurality of first screws, and the first screws are in threaded connection with the seat body and penetrate through the upper die.
The mounting seat further comprises a sealing gasket, and the sealing gasket is fixedly connected with the seat body and is positioned between the upper die and the seat body.
The fixed template is provided with a limiting hole, the movable template is provided with a limiting column, and the limiting column is located in the limiting hole.
The movable template comprises a movable plate body, a positioning column and a plurality of second screws, the second screws are in threaded connection with the movable plate body and penetrate through the lower die, and the positioning column is fixedly connected with the movable plate body and is positioned on one side, close to the lower die, of the movable plate body.
The injection molding assembly further comprises an overflow valve, wherein the overflow valve is communicated with the mounting seat and the discharge hole and is positioned between the mounting seat and the discharge hole.
In a second aspect, the present invention provides a method for implementing low-pressure injection molding by a high-pressure injection molding machine, including: fixing an upper die and a lower die on a mounting seat and a movable template through first screws and second screws respectively;
moving the hydraulic cylinder to enable the movable template to be in contact with the mounting seat;
starting an injection molding machine to inject materials, shunting the materials through a shunting plate, and then uniformly entering an upper die through an injection molding channel until a space formed by the upper die and a lower die is filled;
and moving the hydraulic cylinder again to move the movable die plate upwards to extrude the excess material to finish injection molding.
The invention relates to a die and a method for realizing low-pressure injection molding of a high-pressure injection molding machine, wherein a support is fixedly connected with a base, the base is used for supporting the support, injection molding raw materials enter from a feed inlet, and the surplus injection molding raw materials are discharged from a discharge outlet, a fixed template is fixedly connected with the support, a movable template is slidably connected with the support, a hydraulic tank is fixedly connected with the base, a hydraulic cylinder is communicated with the hydraulic tank, a sliding rod of the hydraulic cylinder is fixedly connected with the movable template, and the movable template is driven to move up and down under the supporting action of the hydraulic tank through the hydraulic cylinder; the injection molding machine is fixedly connected with the fixed template, raw materials can be pressed in from the injection molding machine at high pressure, the shunt shell is fixedly connected with the fixed template, the shunt disc is fixedly connected with the shunt shell, the raw materials enter the shunt shell, the pressure is reduced by uniformly distributing a plurality of first through holes on the shunt disc, the mounting seat is fixedly connected with the shunt disc, a plurality of injection molding channels are communicated with the mounting seat, the upper die and the lower die are respectively detachably connected with the mounting seat and the movable template, a prepressing cavity is formed between the upper die and the lower die, after the raw materials are injected through the injection molding channels, the movable template is moved upwards through the hydraulic cylinder to perform low-pressure extrusion molding on the prepressing cavity, and redundant materials are extruded from the discharge port, so that the extrusion efficiency can be improved, and the molding quality can be improved, thereby solve current equipment feeding pressure when the extrusion not enough even for the problem that the shaping quality reduces.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a structural diagram of a mold for realizing low-pressure injection molding by a high-pressure injection molding machine according to the present invention;
FIG. 2 is a schematic transverse cross-sectional view of a mold for low pressure injection molding by a high pressure injection molding machine according to the present invention, taken along a centerline;
FIG. 3 is a schematic cross-sectional view of a mold for low pressure injection molding by a high pressure injection molding machine according to the present invention, taken along a first screw;
FIG. 4 is a schematic longitudinal sectional view of a mold for low pressure injection molding by a high pressure injection molding machine according to the present invention, taken along a centerline;
FIG. 5 is a flow chart of a method for implementing low pressure injection molding by a high pressure injection molding machine according to the present invention.
1-supporting component, 2-injection molding component, 3-molding component, 11-base, 12-bracket, 13-fixed mold plate, 14-movable mold plate, 15-hydraulic tank, 16-hydraulic cylinder, 21-injection molding machine, 22-shunt shell, 23-shunt disk, 24-mounting seat, 25-injection molding channel, 26-overflow valve, 27-reflux box, 231-first through hole, 31-upper mold, 32-lower mold, 131-feed inlet, 132-discharge outlet, 133-limit hole, 141-limit column, 142-movable plate body, 143-position column, 144-second screw, 145-adjusting rod, 241-seat body, 242-first screw, 243-sealing gasket and 271-air hole.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. 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 "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to 4, in a first aspect, the present invention provides a mold for implementing low-pressure injection molding by a high-pressure injection molding machine, including:
the support component 1 comprises a base 11, a support 12, a fixed template 13, a movable template 14, a hydraulic tank 15 and a hydraulic cylinder 16, wherein the support 12 is fixedly connected with the base 11 and positioned on one side of the base 11, the fixed template 13 is provided with a feed inlet 131 and a discharge outlet 132, the feed inlet 131 and the discharge outlet 132 are positioned on one side of the fixed template 13, the fixed template 13 is fixedly connected with the support 12 and positioned on one side of the support 12 far away from the base 11, the movable template 14 is slidably connected with the support 12 and positioned between the base 11 and the fixed template 13, the hydraulic tank 15 is fixedly connected with the base 11 and positioned on one side of the base 11, the hydraulic cylinder 16 is communicated with the hydraulic tank 15, a slide bar of the hydraulic cylinder 16 is fixedly connected with the movable template 14, the injection molding assembly 2 comprises an injection molding machine 21, a shunt shell 22, a shunt plate 23, a mounting seat 24 and an injection molding channel 25, the injection molding machine 21 is fixedly connected with the fixed template 13 and communicated with the feed inlet 131, the shunt shell 22 is fixedly connected with the fixed template 13 and positioned at one side of the fixed template 13 close to the movable template 14, the shunt plate 23 is provided with a plurality of first through holes 231, the shunt plate 23 is fixedly connected with the shunt shell 22 and positioned in the shunt shell 22, the mounting seat 24 is fixedly connected with the shunt plate 23 and positioned at one side of the shunt plate 23, the number of the injection molding channels 25 is multiple, the injection molding channels 25 are communicated with the mounting seat 24 and positioned at the periphery of the mounting seat 24, the molding assembly 3 comprises an upper mold 31 and a lower mold 32, the upper mold 31 and the lower mold 32 are respectively detachably connected with the mounting seat 24 and the movable template 14, and is located on one side of the mounting block 24 and the moving platen 14.
In this embodiment, the supporting assembly 1 includes a base 11, a bracket 12, a fixed mold plate 13, a movable mold plate 14, a hydraulic tank 15 and a hydraulic cylinder 16, the bracket 12 is fixedly connected to the base 11 and located on one side of the base 11, the base 11 is used for supporting the bracket 12, the fixed mold plate 13 has a feeding port 131 and a discharging port 132, the feeding port 131 and the discharging port 132 are located on one side of the fixed mold plate 13, injection molding material enters from the feeding port 131, and excess injection material is discharged from the discharging port 132, the fixed mold plate 13 is fixedly connected to the bracket 12 and located on one side of the bracket 12 away from the base 11, the movable mold plate 14 is slidably connected to the bracket 12 and located between the base 11 and the fixed mold plate 13, the hydraulic tank 15 is fixedly connected to the base 11 and located on one side of the base 11, the hydraulic cylinder 16 is communicated with the hydraulic tank 15, a sliding rod of the hydraulic cylinder 16 is fixedly connected with the movable template 14, and the movable template 14 is driven to move up and down under the supporting action of the hydraulic tank 15 through the hydraulic cylinder 16; the injection molding assembly 2 comprises an injection molding machine 21, a shunt shell 22, a shunt plate 23, a mounting seat 24 and injection molding channels 25, wherein the injection molding machine 21 is fixedly connected with the fixed template 13 and communicated with the feed inlet 131, raw materials can be pressed in from the injection molding machine 21 at high pressure, the shunt shell 22 is fixedly connected with the fixed template 13 and positioned on one side of the fixed template 13 close to the movable template 14, the shunt plate 23 is provided with a plurality of first through holes 231, the shunt plate 23 is fixedly connected with the shunt shell 22 and positioned in the shunt shell 22, the raw materials enter the shunt shell 22 and are uniformly distributed through the first through holes 231 on the shunt plate 23 to reduce pressure, the mounting seat 24 is fixedly connected with the shunt plate 23 and positioned on one side of the shunt plate 23, the injection molding channels 25 are in a plurality, and the injection molding channels 25 are communicated with the mounting seat 24, and be located around mount pad 24, shaping subassembly 3 includes mould 31 and lower mould 32, go up mould 31 with lower mould 32 respectively with mount pad 24 with movable mould board 14 can dismantle the connection, and be located mount pad 24 with one side of movable mould board 14, through go up mould 31 with form a pre-compaction chamber between the lower mould 32, through after the way 25 of moulding plastics pours into raw and other materials into, through pneumatic cylinder 16 moves up thereby carry out low pressure extrusion to the pre-compaction chamber, unnecessary material is followed discharge gate 132 extrudes to can improve extrusion efficiency, improve the shaping quality, thereby solve current equipment feed pressure when the extrusion not enough even for the problem that the shaping quality reduces.
Further, the mounting seat 24 includes a seat body 241 and a plurality of first screws 242, and the plurality of first screws 242 are threadedly connected to the seat body 241 and penetrate through the upper die 31.
In this embodiment, the plurality of first screws 242 are disposed on the base 241, so that the base can be conveniently connected to the upper die 31, and is more stable.
Further, the mounting seat 24 further includes a sealing gasket 243, and the sealing gasket 243 is fixedly connected to the seat body 241 and is located between the upper die 31 and the seat body 241.
In the present embodiment, the gasket 243 is disposed between the upper mold 31 and the seat 241, so that a gap between the upper mold 31 and the seat 241 can be prevented, and leakage of material therefrom can be prevented, thereby improving molding quality.
Further, the fixed die plate 13 has a limiting hole 133, the movable die plate 14 has a limiting post 141, and the limiting post 141 is located in the limiting hole 133.
In this embodiment, the positioning posts 141 and the positioning holes 133 are matched, so that the precision of the movable die plate 14 in the moving process can be improved, and the forming quality is better.
Further, the movable die plate 14 includes a movable plate 142, a positioning column 143 and a plurality of second screws 144, the plurality of second screws 144 are in threaded connection with the movable plate 142 and penetrate through the lower die 32, and the positioning column 143 is fixedly connected with the movable plate 142 and is located on one side of the movable plate 142 close to the lower die 32.
In this embodiment, the positioning post 143 can position the lower mold 32, and then the positioning post 143 and the lower mold 32 can be connected more stably by the second screw 144.
Further, the injection molding assembly 2 further comprises a spill valve 26, wherein the spill valve 26 is communicated with the mounting seat 24 and the discharge port 132 and is located between the mounting seat 24 and the discharge port 132.
In this embodiment, the overflow valve 26 is disposed on the mounting seat 24, so that when the movable die plate 14 moves upwards, the excess material can directly overflow through the overflow valve 26, thereby increasing the extrusion efficiency, reducing the moving path of material molecules, and making the molding more stable.
Further, the injection molding assembly 2 further comprises a return box 27, wherein the return box 27 is communicated with the overflow valve 26 and is positioned on one side of the movable mold plate 14.
In the present embodiment, the backflow box 27 is disposed at one side of the overflow valve 26, so that the excessive material coming out of the overflow valve 26 can enter the backflow box 27 to be collected and then recycled.
Further, the reflow box 27 has air holes 271, and the air holes 271 are distributed on the reflow box 27.
In the present embodiment, the air hole 271 is provided in the return box 27, so that air during the injection process can be extruded out from the air hole 271 of the return box 27 as the movable die plate 14 moves upward, and the molding effect is improved.
Further, the movable die plate 14 further includes an adjusting rod 145, and the adjusting rod 145 is in threaded connection with the movable plate 142 and is located around the movable plate 142.
In this embodiment, the adjusting rod 145 is disposed around the movable plate 142, so as to limit the position of the lower mold 32 on the movable plate 142 entering the upper mold 31, and to better control the size of the injection molding cavity between the upper mold 31 and the lower mold 32.
In a second aspect, referring to fig. 5, the present invention provides a method for implementing low-pressure injection molding by a high-pressure injection molding machine 21, including:
s101, fixing the upper die 31 and the lower die 32 to the mounting seat 24 and the movable die plate 14 by the first screw 242 and the second screw 144, respectively;
different dies can be selected for use according to actual conditions, so that the application range can be expanded.
S102, moving the hydraulic cylinder 16 to enable the movable die plate 14 to be in contact with the mounting seat 24;
the moving platen 14 is moved a first time into contact with the mounting block 24 to form a preliminary extrusion chamber to facilitate injection of the stock material.
S103, starting the injection molding machine 21 to inject materials, shunting the materials by the shunting plate, and uniformly entering the upper mold 31 through the injection molding channel 25 until the space formed by the upper mold 31 and the lower mold 32 is filled;
s104, the hydraulic cylinder 16 is moved again to move the movable die plate 14 upwards to extrude the excess material to finish injection molding.
The hydraulic cylinder 16 is moved again to discharge the excess raw material from the discharge port 132, so that the injection molding process can be completed.
The working principle and the using process of the invention are as follows: referring to fig. 1 to 4, after the present invention is installed, a pre-pressing cavity is formed between the upper die 31 and the lower die 32, after raw materials are injected through the injection channel 25, the movable die plate 14 is moved on the hydraulic cylinder 16 to perform low-pressure extrusion molding on the pre-pressing cavity, and excess materials are extruded from the discharge hole 132, so that the extrusion efficiency can be improved, the molding quality can be improved, and the problem that the feeding pressure is not uniform enough during extrusion of the existing equipment, so that the molding quality is reduced can be solved.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A mold for realizing low-pressure injection molding by a high-pressure injection molding machine is characterized in that,
comprises a supporting component, an injection molding component and a molding component, wherein the supporting component comprises a base, a support, a fixed template, a movable template, a hydraulic tank and a hydraulic cylinder, the support is fixedly connected with the base and is positioned on one side of the base, the fixed template is provided with a feed inlet and a discharge outlet, the feed inlet and the discharge outlet are positioned on one side of the fixed template, the fixed template is fixedly connected with the support and is positioned on one side of the support far away from the base, the movable template is slidably connected with the support and is positioned between the base and the fixed template, the hydraulic tank is fixedly connected with the base and is positioned on one side of the base, the hydraulic cylinder is communicated with the hydraulic tank, a slide bar of the hydraulic cylinder is fixedly connected with the movable template, the injection molding component comprises an injection molding machine, a shunt shell, a shunt plate, a mounting seat and an injection molding channel, the injection molding machine with fixed die plate fixed connection, and with the feed inlet intercommunication, the reposition of redundant personnel shell with fixed die plate fixed connection, and be located the fixed die plate is close to one side of movable mould board, the diverter plate has a plurality of first through-holes, the diverter plate with reposition of redundant personnel shell fixed connection, and be located in the reposition of redundant personnel shell, the mount pad with diverter plate fixed connection, and be located one side of diverter plate, the quantity of saying of moulding plastics has a plurality ofly, and is a plurality of mould plastics say with the mount pad intercommunication, and be located around the mount pad, the shaping subassembly includes mould and lower mould, go up the mould with the lower mould respectively with the mount pad with movable mould board can dismantle the connection, and be located the mount pad with one side of movable mould board.
2. The mold for low-pressure injection molding by a high-pressure injection molding machine according to claim 1,
the mounting seat comprises a seat body and a plurality of first screws, and the first screws are in threaded connection with the seat body and penetrate through the upper die.
3. The mold for low-pressure injection molding by a high-pressure injection molding machine according to claim 2,
the mounting seat further comprises a sealing gasket, and the sealing gasket is fixedly connected with the seat body and is positioned between the upper die and the seat body.
4. The mold for low-pressure injection molding by a high-pressure injection molding machine according to claim 1,
the fixed template is provided with a limiting hole, the movable template is provided with a limiting column, and the limiting column is located in the limiting hole.
5. The mold for low-pressure injection molding by a high-pressure injection molding machine according to claim 4,
the movable template comprises a movable plate body, a positioning column and a plurality of second screws, the second screws are in threaded connection with the movable plate body and penetrate through the lower die, and the positioning column is fixedly connected with the movable plate body and is positioned on one side, close to the lower die, of the movable plate body.
6. The mold for low-pressure injection molding by a high-pressure injection molding machine according to claim 5,
the injection molding assembly further comprises an overflow valve, and the overflow valve is communicated with the mounting seat and the discharge hole and is positioned between the mounting seat and the discharge hole.
7. A method for realizing low-pressure injection molding by a high-pressure injection molding machine is characterized in that,
the method comprises the following steps: fixing an upper die and a lower die on a mounting seat and a movable template through first screws and second screws respectively;
moving a hydraulic cylinder to enable the movable template to be in contact with the mounting seat;
starting an injection molding machine to inject materials, shunting the materials through a shunting plate, and then uniformly entering an upper die through an injection molding channel until a space formed by the upper die and a lower die is filled;
and moving the hydraulic cylinder again to move the movable die plate upwards to extrude the excess material to finish injection molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011484624.7A CN112743764A (en) | 2020-12-16 | 2020-12-16 | Mold and method for realizing low-pressure injection molding of high-pressure injection molding machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011484624.7A CN112743764A (en) | 2020-12-16 | 2020-12-16 | Mold and method for realizing low-pressure injection molding of high-pressure injection molding machine |
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| CN112743764A true CN112743764A (en) | 2021-05-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115107216A (en) * | 2022-05-09 | 2022-09-27 | 郭志达 | Pre-molding injection molding machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203092934U (en) * | 2013-02-04 | 2013-07-31 | 深圳创维精密科技有限公司 | Low-pressure injection mold |
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| CN110884059A (en) * | 2019-12-13 | 2020-03-17 | 深圳亿和模具制造有限公司 | Mold and method for realizing low-pressure injection molding of high-pressure injection molding machine |
| CN111976097A (en) * | 2020-07-23 | 2020-11-24 | 深圳市华益盛模具股份有限公司 | Mold for realizing low-pressure molding of high-pressure injection molding machine |
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| CN203092934U (en) * | 2013-02-04 | 2013-07-31 | 深圳创维精密科技有限公司 | Low-pressure injection mold |
| CN205871073U (en) * | 2016-07-30 | 2017-01-11 | 迅兴塑胶模具（深圳）有限公司 | High accuracy car injection mold |
| CN110884059A (en) * | 2019-12-13 | 2020-03-17 | 深圳亿和模具制造有限公司 | Mold and method for realizing low-pressure injection molding of high-pressure injection molding machine |
| CN111976097A (en) * | 2020-07-23 | 2020-11-24 | 深圳市华益盛模具股份有限公司 | Mold for realizing low-pressure molding of high-pressure injection molding machine |
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| CN115107216A (en) * | 2022-05-09 | 2022-09-27 | 郭志达 | Pre-molding injection molding machine |
| CN115107216B (en) * | 2022-05-09 | 2024-04-05 | 广东苏米物联科技有限公司 | Pre-compression molding injection molding machine |
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