CN111409233A - Three-color injection molding machine for L SR foot pad of notebook computer and injection molding process thereof - Google Patents
Three-color injection molding machine for L SR foot pad of notebook computer and injection molding process thereof Download PDFInfo
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- CN111409233A CN111409233A CN202010342170.3A CN202010342170A CN111409233A CN 111409233 A CN111409233 A CN 111409233A CN 202010342170 A CN202010342170 A CN 202010342170A CN 111409233 A CN111409233 A CN 111409233A
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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
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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
- B29C45/03—Injection moulding apparatus
- B29C45/04—Injection moulding apparatus using movable moulds or mould halves
- B29C45/06—Injection moulding apparatus using movable moulds or mould halves mounted on a turntable, i.e. on a rotating support having a rotating axis parallel to the mould opening, closing or clamping direction
- B29C45/062—Injection moulding apparatus using movable moulds or mould halves mounted on a turntable, i.e. on a rotating support having a rotating axis parallel to the mould opening, closing or clamping direction carrying mould halves co-operating with fixed mould halves
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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
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1615—The materials being injected at different moulding stations
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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
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1615—The materials being injected at different moulding stations
- B29C45/1628—The materials being injected at different moulding stations using a mould carrier rotatable about an axis perpendicular to the opening and closing axis of the moulding stations
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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
- B29C45/32—Moulds having several axially spaced mould cavities, i.e. for making several separated articles
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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
- B29C45/76—Measuring, controlling or regulating
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
-
- 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
- B29C45/76—Measuring, controlling or regulating
- B29C45/78—Measuring, controlling or regulating of temperature
-
- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76498—Pressure
-
- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76531—Temperature
-
- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76595—Velocity
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a three-color injection molding machine for L SR foot pads of notebooks, which comprises a base, wherein a horizontal injection molding machine body is arranged on the base, the horizontal injection molding machine body comprises a driving part, an injection mold and an injection molding system, the injection molding system comprises a first injection unit and a second injection unit, a fixed support is arranged on the side surface of the base, a L SR injection unit for injecting liquid silica gel is arranged on the fixed support, a material mixing system connected with a L SR injection unit is arranged on one side of the base, a reversing disc connected with the driving part is arranged in the injection mold, the reversing disc comprises two movable mold cores, and the injection mold also comprises two fixed mold cores.
Description
Technical Field
The invention relates to an injection mold, in particular to a three-color injection molding machine for an L SR foot pad of a notebook computer and an injection molding process thereof.
Background
The notebook foot pad is used for heightening a notebook, can play a role in auxiliary heat dissipation, particularly can raise the air inlet surface (D surface) of the notebook, increases the air inlet amount, has a good fan configuration, has a small inner space of the notebook and has a prominent auxiliary heat dissipation effect on the notebook with a large air inlet amount of the D surface, thereby improving the heat dissipation. In addition, for light and thin books, the heightening brings a little better hand feeling for typing, and the heightening has a certain positive effect on protecting cervical vertebra and wrist.
At present, a foot pad on the surface of L ST (liquid silicone rubber) is adopted for a small number of high-end brand notebooks, the liquid silicone rubber has obvious advantages compared with rubber materials, such as 1, the surface is not easy to adsorb dust, is not sticky, and has good oil resistance and chemical resistance, 2, the foot pad can obtain silky touch feeling through injection molding without secondary processing treatment of hand feeling oil spraying and the like, 3, the foot pad does not contain plasticizer, the phenomenon of wax precipitation of materials such as TPE and TPU does not occur, the body health is influenced, the safety and the environment are protected, 4, the coating ratio is good, the foot pad has excellent adhesion with a plurality of thermoplastic engineering plastics such as PC, PC/ABS, PA, PVC and the like, at present, the foot pad of the notebook is of a double-layer structure, the bottom layer is a single-layer thermoplastic engineering plastic, the upper layer is the surface of the silicone rubber, the existing technology generally adopts PC + L SR materials or ABS + L SR and the like, and the foot pad is required to be better in the development of new notebook pad and is better in the new use requirements of notebook.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a three-color injection molding machine for a notebook L SR foot pad and an injection molding process thereof, which can meet the injection molding requirements of a three-color notebook foot pad.
In order to achieve the purpose, the invention provides the following technical scheme:
notebook L SR callus on sole three-colour injection moulding machine, including the base, its characterized in that be provided with horizontal injection molding machine body on the base, horizontal injection molding machine body includes drive division, injection mold, injection molding system, the injection molding system includes and penetrates the unit with injection mold is connected and one that is parallel to each other penetrates the unit and two, the base side is provided with the fixed bolster, be provided with the L SR injection unit that is used for injecting liquid silica gel on the fixed bolster, base one side is provided with the compounding system of being connected with L SR injection unit, include the switching-over dish of being connected with the drive division in the injection mold, the drive division is including the linear motion portion that is used for driving mould die sinking and compound die and the rotation portion of being connected with the switching-over dish, the switching-over dish includes two movable mould benevolence, injection mold still includes two cover halves that correspond with movable mould.
Preferably, the movable mold cores have the same structure and are symmetrical about the center of the reversing disc, the fixed mold core comprises a first fixed mold core for one-shot molding, and the fixed mold core further comprises a second fixed mold core for two-shot molding and three-shot molding.
Preferably, the L SR injection unit comprises a L SR nozzle connected to a sidewall of an injection mold.
Preferably, a cooling water jacket is arranged on the L SR nozzle, and an industrial water cooler is connected with the cooling water jacket.
Preferably, each of the moving mold core and the fixed mold core is provided with a plurality of rows of cavities which are parallel to each other in a rectangular array.
Preferably, the first injection unit injection molding material comprises thermoplastic plastics such as PC, PC + GF and PBT, and the second injection unit injection molding material comprises thermoplastic plastics such as ABS, PC + ABS and TPU.
The invention also provides an injection molding process of the L SR foot pad three-color injection molding machine, which is characterized by mainly comprising the following steps:
(1) injection molding preparation: driving an injection mold to be closed through a linear motion part of the injection molding machine;
(2) an injection molding: injecting an injection molding plastic material into the first fixed mold core through an injection unit, wherein the injection time is controlled to be 1.5 s;
(3) preparation of a second shot: opening the injection mold, driving the reversing disc to reverse 180 degrees through the rotating part, so that the positions of the two movable mold cores are exchanged, and closing the injection mold;
(4) two-shot molding: injecting a second injection molding plastic material into the second fixed mold core through a second injection unit, controlling the injection time to be 1.8s, and simultaneously, repeatedly executing the step (2);
(5) performing three-shot molding, namely mixing the materials through a mixing system to form a liquid silica gel material, injecting the liquid silica gel into the second cavity insert through an L SR injection unit, controlling the injection molding temperature at 120-;
(6) and (3) product molding: and (4) completing product injection molding, opening the injection mold, ejecting the formed part through an ejector pin, driving a reversing disc to reverse 180 degrees through a rotating part, closing the injection mold, and skipping to the step (4).
Preferably, in the step (2), an injection molding includes a first molding and a second molding, and the pressure of the first molding is controlled as follows: 80Mba to 150Mba, the speed is controlled between 100mm/s and 280 mm/s, and the glue feeding amount accounts for 50 to 80 percent; the two-stage forming pressure is controlled to be 40Mba-120Mba, the speed is 50 mm/s-200 mm/, and the glue feeding amount accounts for the ratio: 10 to 50 percent.
Preferably, in the step (4), the two-shot molding comprises a first-stage molding and a second-stage molding, the pressure of the first-stage molding is controlled to be 200bar-500bar, the speed is controlled to be 50mm/s-100mm/s, and the glue feeding amount accounts for the ratio: 40 percent; the two-stage molding pressure is controlled to be 50 bar-300 bar, the speed is controlled to be 2mm/s-80mm/s, and the glue feeding amount accounts for the ratio: 60 percent.
Preferably, in the step (5), the injection pressure is controlled to be 280-320bar, the holding pressure is controlled to be 175-210bar, and the injection speed is controlled to be 3-6 mm/s.
Compared with the prior art, the invention has the following beneficial effects:
1. the three-color injection-molded notebook foot sticker integrates the characteristics of three materials, the foot pad has better toughness, heat resistance, low temperature resistance and impact resistance, the problem that the traditional foot pad is easily damaged is solved by the new-process notebook foot pad, and the overall quality of a notebook is improved;
2. the optimized three-color injection molding machine has the advantages that (1) the injection system is installed quickly and conveniently, (2) a plurality of notebook foot pads can be formed by injection molding once, injection molding efficiency is high by alternately injecting molding through the reversing disc, and (3) the three-injection L SR injection system is an independent control system, so that the material storage in the material pipe is greatly saved, the cost is saved, the using amount of AB glue can be automatically adjusted, the generation of product burrs is reduced, and the labor cost can be reduced.
Drawings
FIG. 1 is a schematic structural diagram of the present embodiment;
FIG. 2 is a schematic view of a three-color injection mold.
In the figure, the injection molding machine comprises a base 1, a base 2, a driving part 3, an injection mold 31, a movable mold core 32, a fixed mold core 321, a first fixed mold core 322, a second fixed mold core 33, a mold cavity 4, an injection molding system 41, a first injection unit 42, a second injection unit 5, a fixed support 51, an L SR injection unit, a 511, L SR nozzle 5111, a cooling water jacket 5112, a water cooler, a material mixing system 6, a reversing disc 7 and a material mixing system.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A L SR foot pad three-color injection molding machine comprises a base 1, wherein a horizontal injection molding machine body is arranged on the base 1, the horizontal injection molding machine body is modified on the basis of a DC600T standard horizontal two-color injection molding machine, the horizontal injection molding machine body comprises a driving part 2, an injection mold 3 and an injection system 4, the injection system 4 comprises a first injection unit 41 and a second injection unit 42 which are connected with the injection mold 3 and are parallel to each other, a fixed support 5 is arranged on the side surface of the base 1, a L SR injection unit 51 for injecting liquid silica gel is arranged on the fixed support 5, a material mixing system 6 connected with the L SR injection unit 51 is arranged on one side of the base 1, a reversing disc 7 connected with the driving part 2 is arranged in the injection mold 3, the driving part 2 comprises a linear motion part for driving the mold to open and close and a rotating part connected with the reversing disc 7, the linear motion part is a hydraulic system, the specific structure of the rotating part can refer to Chinese patent invention with patent No. 201721577860.7, the reversing disc 7 is arranged on the rotating part, the reversing disc 7 comprises two movable mold cores 31, and the injection mold 3 also comprises.
The two movable mold cores 31 have the same structure and are symmetrical with respect to the center of the reversing plate 7, the fixed mold core 32 includes a first fixed mold core 321 for one-shot molding, and the fixed mold core 32 further includes a second fixed mold core 322 for two-shot molding and three-shot molding.
L SR injection unit 51 comprises L SR nozzle 511 and L SR nozzle 511 connected with the side wall of the injection mold 3, wherein the nozzle 511 is screwed into the injection mold 3 and is communicated with the internal flow channel, the L SR nozzle 511 is provided with a cooling water jacket 5111, the cooling water jacket 5111 is connected with an industrial water cooler 5112, and since the silica gel melts when meeting cold and solidifies when meeting heat, the temperature of the L SR nozzle 511 needs to be reduced to keep the silica gel in a flowing state, thereby realizing the precise control of the gel feeding amount.
Each of the movable mold core 31 and the fixed mold core 32 is provided with a plurality of rows of cavities 33 in a rectangular array, which are parallel to each other, for improving the production efficiency.
The injection molding material of the first injection unit 41 comprises thermoplastic plastics such as PC, PC + GF and PBT, the injection molding material of the second injection unit 42 comprises thermoplastic plastics such as ABS, PC + ABS and TPU, and through the combination of the materials, the notebook foot sticker integrates the characteristics of the three materials, and the foot pad has better toughness, heat resistance, low temperature resistance and impact resistance.
The injection molding process mainly comprises the following steps:
(1) injection molding preparation: the injection mold 3 is driven to be closed through the linear motion part of the injection molding machine;
(2) an injection molding: injecting an injection molding plastic material into the first cavity 32132 by an injection unit 41, wherein the injection time is controlled to be 1.5 s;
(3) preparation of a second shot: opening the injection mold 3, driving the reversing disc 7180 degrees to reverse through the rotating part, so that the positions of the two movable mold cores 31 are exchanged, and closing the injection mold 3;
(4) two-shot molding: injecting a second injection molding plastic material into the second fixed mold core 32232 through the second injection unit 42, wherein the injection time is controlled to be 1.8s, and simultaneously, the step (2) is repeatedly executed;
(5) performing three-shot molding, namely mixing the materials by a mixing system 6 to form a liquid silica gel material, injecting the liquid silica gel into the second fixed mold core 32232 by an L SR injection unit 51, controlling the injection molding temperature at 140 ℃, the injection time at 30s, and maintaining the pressure for 10 s;
(6) and (3) product molding: and (3) completing product injection molding, opening the injection mold 3, ejecting the formed part through an ejector pin, driving a reversing disc 7180-degree reversing through a rotating part, closing the injection mold 3, and skipping to the step (4).
Based on the steps, in the step (2), the one-shot molding comprises one-section molding and two-section molding, and the pressure of the one-section molding is controlled as follows: 80Mba to 150Mba, the speed is controlled between 100mm/s and 280 mm/s, and the glue feeding amount accounts for 50 to 80 percent; the two-stage forming pressure is controlled to be 40Mba-120Mba, the speed is 50 mm/s-200 mm/, and the glue feeding amount accounts for the ratio: 10 to 50 percent.
In the step (4), the two-shot forming comprises first-stage forming and second-stage forming, the pressure of the first-stage forming is controlled to be 200bar-500bar, the speed is controlled to be 50mm/s-100mm/s, and the glue feeding amount accounts for the ratio: 40 percent; the two-stage molding pressure is controlled to be 50 bar-300 bar, the speed is controlled to be 2mm/s-80mm/s, and the glue feeding amount accounts for the ratio: 60 percent.
In the step (5), the injection pressure is controlled to be 280-320bar, the holding pressure is controlled to be 175-210bar, and the injection speed is controlled to be 3-6 mm/s.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications without inventive contribution to the present embodiment as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (10)
1. Notebook L SR callus on sole three-colour injection moulding machine, including the base, its characterized in that be provided with horizontal injection molding machine body on the base, horizontal injection molding machine body includes drive division, injection mold, injection molding system, the injection molding system includes and penetrates the unit with injection mold is connected and one that is parallel to each other penetrates the unit and two, the base side is provided with the fixed bolster, be provided with the L SR injection unit that is used for injecting liquid silica gel on the fixed bolster, base one side is provided with the compounding system of being connected with L SR injection unit, include the switching-over dish of being connected with the drive division in the injection mold, the drive division is including the linear motion portion that is used for driving mould die sinking and compound die and the rotation portion of being connected with the switching-over dish, the switching-over dish includes two movable mould benevolence, injection mold still includes two cover halves that correspond with movable mould.
2. The L SR foot pad three-color injection molding machine of claim 1, wherein the cavity blocks have the same structure and are symmetrical about the center of the reversing disc, the cavity blocks include a first cavity block for one-shot molding and a second cavity block for two-shot molding and three-shot molding.
3. The notebook L SR foot pad three-color injection molding machine as claimed in claim 2, wherein the L SR injection unit comprises a L SR nozzle connected to a sidewall of an injection mold.
4. The three-color injection molding machine for the L SR foot pad of the notebook computer as claimed in claim 3, wherein a cooling water jacket is arranged on the L SR nozzle, and an industrial water cooler is connected to the cooling water jacket.
5. The L SR foot pad three-color injection molding machine as set forth in claim 2, wherein each of the moving and stationary cores is provided with a plurality of rows of cavities parallel to each other in a rectangular array.
6. The three-color injection molding machine for the L SR foot pad of the notebook computer as claimed in claim 1, wherein the one-shot unit injection molding material comprises thermoplastic plastics such as PC, PC + GF, PBT, and the two-shot unit injection molding material comprises thermoplastic plastics such as ABS, PC + ABS, TPU.
7. The injection molding process of the three-color injection molding machine for the L SR foot pad of the notebook computer according to any one of claims 1 to 6, wherein the injection molding process mainly comprises the following steps:
(1) injection molding preparation: driving an injection mold to be closed through a linear motion part of the injection molding machine;
(2) an injection molding: injecting an injection molding plastic material into the first fixed mold core through an injection unit, wherein the injection time is controlled to be 1.5 s;
(3) preparation of a second shot: opening the injection mold, driving the reversing disc to reverse 180 degrees through the rotating part, so that the positions of the two movable mold cores are exchanged, and closing the injection mold;
(4) two-shot molding: injecting a second injection molding plastic material into the second fixed mold core through a second injection unit, controlling the injection time to be 1.8s, and simultaneously, repeatedly executing the step (2);
(5) performing three-shot molding, namely mixing the materials through a mixing system to form a liquid silica gel material, injecting the liquid silica gel into the second cavity insert through an L SR injection unit, controlling the injection molding temperature at 120-;
(6) and (3) product molding: and (4) completing product injection molding, opening the injection mold, ejecting the formed part through an ejector pin, driving a reversing disc to reverse 180 degrees through a rotating part, closing the injection mold, and skipping to the step (4).
8. The injection molding process of the L SR foot pad of the notebook computer according to claim 7, wherein in the step (2), the one-shot molding comprises a first-stage molding and a second-stage molding, the pressure of the first-stage molding is controlled to be 80Mba-150Mba, the speed is controlled to be 100 mm/s-280 mm/s, the glue feeding amount accounts for 50-80%, the pressure of the second-stage molding is controlled to be 40Mba-120Mba, the speed is controlled to be 50 mm/s-200 mm/, and the glue feeding amount accounts for 10-50%.
9. The injection molding process of L SR footpad of claim 7, wherein in step (4), the two-shot molding comprises a first-shot molding and a second-shot molding, the pressure of the first-shot molding is controlled to be 200bar-500bar, the speed is controlled to be 50mm/s-100mm/s, and the glue feeding amount accounts for 40%, the pressure of the second-shot molding is controlled to be 50 bar-300 bar, the speed is controlled to be 2mm/s-80mm/s, and the glue feeding amount accounts for 60%.
10. The injection molding process of L SR foot pad of claim 7, wherein in step (5), the injection pressure is controlled at 280-320bar, the holding pressure is controlled at 175-210bar, and the injection speed is controlled at 3-6 mm/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010342170.3A CN111409233A (en) | 2020-04-27 | 2020-04-27 | Three-color injection molding machine for L SR foot pad of notebook computer and injection molding process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010342170.3A CN111409233A (en) | 2020-04-27 | 2020-04-27 | Three-color injection molding machine for L SR foot pad of notebook computer and injection molding process thereof |
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| CN111409233A true CN111409233A (en) | 2020-07-14 |
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| CN202010342170.3A Pending CN111409233A (en) | 2020-04-27 | 2020-04-27 | Three-color injection molding machine for L SR foot pad of notebook computer and injection molding process thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112549439A (en) * | 2020-11-09 | 2021-03-26 | 宁波圣捷喷雾泵有限公司 | Multicolor injection molding piece and injection molding process thereof |
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2020
- 2020-04-27 CN CN202010342170.3A patent/CN111409233A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112549439A (en) * | 2020-11-09 | 2021-03-26 | 宁波圣捷喷雾泵有限公司 | Multicolor injection molding piece and injection molding process thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 215000 313 Fenyang Road, Lili Town, Wujiang District, Suzhou City, Jiangsu Province Applicant after: Suzhou Fuying New Material Co.,Ltd. Address before: 215000 313 Fenyang Road, Lili Town, Wujiang District, Suzhou City, Jiangsu Province Applicant before: SUZHOU YICHANGTAI PLASTIC Co.,Ltd. |