CN110126190B - Die with changeable die cavity in injection molding process and injection molding process thereof - Google Patents
Die with changeable die cavity in injection molding process and injection molding process thereof Download PDFInfo
- Publication number
- CN110126190B CN110126190B CN201910259234.0A CN201910259234A CN110126190B CN 110126190 B CN110126190 B CN 110126190B CN 201910259234 A CN201910259234 A CN 201910259234A CN 110126190 B CN110126190 B CN 110126190B
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- cavity
- central core
- movable plate
- driving frame
- die
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 26
- 239000003292 glue Substances 0.000 claims abstract description 21
- 238000002347 injection Methods 0.000 claims abstract description 20
- 239000007924 injection Substances 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 4
- 241001633106 Lithocarpus Species 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 238000004891 communication Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1751—Adjustment means allowing the use of moulds of different thicknesses
-
- 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
- B29C45/2602—Mould construction elements
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a die with a changeable die cavity in an injection molding process, which comprises an upper die and a lower die, wherein a plurality of die cavities are arranged at the connecting positions of the upper die and the lower die, and are communicated with a glue injection port; the mold further comprises a driving frame, a movable plate and a plurality of central mold cores connected to the movable plate, wherein the upper end of one central mold core is connected to the corresponding mold cavity; a reversing structure is connected between the driving frame and the movable plate and comprises a sliding block and a chute for accommodating the sliding block to slide in a guiding way; the chute and the sliding block are arranged on the driving frame, and the other chute and the sliding block are arranged on the movable plate; the movable plate is also connected with a first guide structure for controlling the movable plate to vertically move; the transverse sliding of the driving frame is used for driving the upper end of the central core to lift in the cavity. The over-thick glue position is firstly positioned to be thin wall, then the wall thickness is gradually overlapped, the wall thickness to be injection molded is always thinner in the overlapping process, the appearance of the product is greatly improved, the surface is finer and smoother, and the process requirement is met.
Description
Technical Field
The invention relates to a mold, in particular to a mold with a changeable mold cavity in an injection molding process and an injection molding method thereof.
Background
In production, products with larger wall thickness are often required to be produced; the mold cavity is directly shaped, and the shaped mold cavity is used for injection molding of thick-wall plastic products, so that the appearance of the products is easily influenced due to the fact that the mold cavity is easy to generate ripples in the injection molding process.
Disclosure of Invention
In order to overcome the defects in the prior art and solve the problem that poor appearance is easy to occur in injection molding of thick-wall plastic products, the invention adopts the following technical scheme:
An injection molding method is characterized in that a plurality of cavities are arranged at the connecting positions of an upper die and a lower die; the movable plate is connected with a plurality of central core, and the upper end of one central core is connected with a corresponding cavity; the movable plate is connected with a driving frame through a reversing structure, and the driving frame is connected with a motor through a lead screw; the reversing structure comprises a chute and a sliding block; the chute and the sliding block are arranged on the driving frame, and the other chute and the sliding block are arranged on the movable plate;
Setting the distance D 1 between the upper end of the central core and the upper end of the cavity at the beginning of glue injection according to the set glue injection speed V 1 and the glue injection pressure P; setting the central descent speed V 2 according to V 1 and P; the inclined angle theta of the inclined plane of the chute, the sliding speed of the driving frame The screw rod and the corresponding nut block have a transmission ratio k with a certain value, so that the motor rotation speed/>The nut block is connected to the driving frame or integrally formed on the driving frame; the injection molding process comprises the following steps:
Step a, closing the upper die and the lower die, enabling the motor to drive the driving frame to slide so as to enable the center core to move, and stopping the center core when the distance D 1 between the upper end of the center core and the upper end of the cavity is formed, and starting glue injection in the cavity;
step b, after the part of the cavity higher than the upper end of the central core is filled, the motor drives the central core to move downwards at the rotating speed w;
Step c, when the distance between the upper end of the central core and the upper end of the cavity is D 2, the motor is suspended; after the space between the upper end of the central core and the inner wall of the cavity is filled with materials, stopping injecting glue; and d, opening the upper die and the lower die, separating the product from the upper die, and taking the product out of the lower die.
According to another embodiment of the invention, further, the central core is also used for ejecting the product; in the step d, after the product is cooled and shaped, the product can be separated from the lower die when the motor drives the center core to rise.
According to another embodiment of the invention, the device further comprises a material taking manipulator, wherein the material taking manipulator grabs the product after the lower end of the product is higher than the lower die, and can pull the product away from the central core, so that the product can be taken away.
According to another embodiment of the present invention, in the step a, before the central core is suspended, the center Ke Xian is lifted up to make the distance between the upper end of the central core and the upper end of the cavity be D 3, wherein D 3<D1; then the central core descends again, and when the distance between the upper end of the central core and the upper end of the cavity is D 1, the central core is suspended.
According to another specific embodiment of the present invention, further, the reverse gap of the screw rod and the corresponding nut block is D 4; in step a, D 3<D1-kD4.
The die comprises an upper die and a lower die, wherein a plurality of die cavities are arranged at the connecting positions of the upper die and the lower die, and the die cavities are communicated with a glue injection port; the mold further comprises a driving frame, a movable plate and a plurality of central mold cores connected to the movable plate, wherein the upper end of one central mold core is connected to the corresponding mold cavity; a reversing structure is connected between the driving frame and the movable plate, and comprises a chute and a sliding block; the chute and the sliding block are arranged on the driving frame, and the other chute and the sliding block are arranged on the movable plate; the movable plate is also connected with a first guide structure for controlling the movable plate to vertically move; the transverse sliding of the driving frame is used for driving the upper end of the central core to lift in the cavity.
According to another specific embodiment of the invention, further, the driving frame is connected with a lead screw and a second guiding structure, and the lead screw is connected with a motor; when the motor drives the screw rod to rotate, the driving frame slides along the second guiding structure.
According to another specific embodiment of the invention, the driving frame is in a U shape, and two side walls of the U shape are correspondingly connected with two side ends of the movable plate through reversing structures respectively.
According to another specific embodiment of the invention, further, a sliding block is arranged at the side end of the movable plate, and a chute for accommodating sliding of the sliding block is arranged on the side wall of the U-shaped side wall.
According to another embodiment of the present invention, further, the lower die is connected with a fixing plate, and the first guiding structure comprises a guide rod and a guide hole; the guide rod and the guide hole are arranged on the movable plate, and the other guide rod and the guide hole are arranged on the fixed plate and/or the lower die.
The die with the changeable die cavity in the injection molding process has the following beneficial effects: the over-thick glue position is firstly positioned to be thin wall, then the wall thickness is gradually overlapped, the wall thickness to be injection molded is always thinner in the overlapping process, the appearance of the product is greatly improved, the surface is finer and smoother, and the process requirement is met.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a front view of the present invention, concealing the retainer plate.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the drawings.
As shown in fig. 1 and 2, a mold with a changeable mold cavity in an injection molding process comprises an upper mold 1 and a lower mold 2, wherein a plurality of mold cavities 4 are arranged at the connecting positions of the upper mold 1 and the lower mold 2, and the mold cavities 4 are communicated with a glue injection port 1a; the mold further comprises a driving frame 6, a movable plate 7 and a plurality of central core wires 5 connected to the movable plate 7, wherein the upper end of one central core wire 5 is connected to the corresponding mold cavity 4; a reversing structure 8 is connected between the driving frame 6 and the movable plate 7, and the reversing structure 8 comprises a sliding block and a chute for accommodating the sliding block to slide in a guiding way; the chute and the sliding block are arranged on the driving frame 6, and the other chute and the sliding block are arranged on the movable plate 7; the movable plate 7 is also connected with a first guiding structure for controlling the movable plate to vertically move; the driving frame 6 slides transversely to drive the upper end of the central core 5 to lift in the cavity 4.
The core may also be referred to as a core, a hole, recess, etc. for the molded product.
The upper die 1 is connected with an opening and closing power piece which is used for controlling the upper die 1 to move relative to the lower die 2 in an opening and closing manner. The opening and closing power piece can be simply a cylinder body, such as a cylinder and a hydraulic cylinder; the structure of the screw-nut pair can also be adopted.
The lower die 2 is connected with a fixed plate 3, and the first guide structure comprises a guide rod 3a and a guide hole; guide rods 3a and guide holes, one of which is provided on the movable plate 7, and the other of which is provided on the fixed plate 3 and/or the lower die 2. For example, the lower die 2 is stacked on the fixed plate 3, the guide rod 3a is connected on the fixed plate 3, even the lower die 2 is also connected, and the movable plate 7 is provided with a guide hole; the lower die 2 is disposed at one end of the fixed plate 3, and the first guiding structure is generally connected to the lower die 2 and the movable plate 7.
The driving frame 6 is connected with a lead screw and a second guiding structure, and the lead screw is connected with a motor 9a; when the motor 9a drives the screw rod to rotate, the driving frame 6 slides along the second guiding structure. For example, the lower die 2 is stacked on the fixed plate 3, and the second guide structure includes a guide rail (guide bar) connected to the fixed plate 3 by a screw. The motor 9a is connected with a mounting seat 9b, and the mounting seat 9b is connected with the fixed plate 3.
The fixed plate 3 is provided with a countersunk hole, and the direction of the countersunk hole is from top to bottom. The movable plate 7 is correspondingly connected with the guide rod 3a, and screws and screw fixing guide rails are arranged in the countersunk holes from top to bottom.
The driving frame 6 is U-shaped, and two side walls of the U-shape are correspondingly connected with two side ends of the movable plate 7 through reversing structures 8 respectively. The two side walls of the U shape are connected with the fixing plate 3 through guide rails.
One specific design of the reversing arrangement 8 is: the side end of the movable plate 7 is provided with a sliding block, the side wall of the U shape is provided with a chute for accommodating sliding of the sliding block, and the chute is inclined to the right of the upper end; therefore, when the driving frame 6 slides rightward, the movable plate 7 and the center gate 5 are downward. A further specific design of the reversing arrangement 8 is: the side end of the movable plate 7 is provided with a sliding block, the side wall of the U shape is provided with a chute for accommodating sliding of the sliding block, and the chute is inclined to the left at the upper end; therefore, when the driving frame 6 slides leftwards, the movable plate 7 and the center core 5 are downward. A further specific design of the reversing arrangement 8 is: the side wall of the U-shaped is provided with a sliding block, the side end of the movable plate 7 is provided with a chute for accommodating sliding of the sliding block, and the chute is arranged at the upper end of the chute to … …
The central lithocarpus 5 comprises an upper section and a lower section, and the upper end part of the central lithocarpus 5 is taken as the upper section; the upper section of the center mold 5, the upper mold 1 and the lower mold 2 are made of the same material. The product is connected with the same material at each position, the heat conduction is similar, the heat exchange is uniform in the forming process, and the strain force is eliminated.
The shaft diameter of the upper end part of the central core 5 is smaller than the aperture of the cavity 4, and the glue injection port 1a of the cavity 4 is communicated with the upper end of the cavity 4. The glue injection port is arranged on the upper die.
The cavity 4 is a concave part of the upper die 1, and the lower end of the cavity 4 is connected with the upper end face of the lower die 2. The product is ejected out of the center mold 5 by a small section of height, and then is higher than the lower mold 2, so that the product is conveniently cradled by a manual or mechanical arm, and the product is not easy to damage when being taken out.
The movable plate 7 is connected with a grating ruler which is used for feeding back the height value of the central lithocarpy 5; the screw rod rotates, the driving frame 6 moves, the center lithocarpy 5 ascends and the grating ruler feeds back to form closed loop control. The grating ruler is connected with the industrial personal computer, and the industrial personal computer can digitally indicate the height value of the central lithocarpy 5. A scale is also included for indicating the height value of the central core 5.
In the injection molding method with a changeable mold cavity in the injection molding process, a plurality of mold cavities 4 are arranged at the connecting positions between an upper mold 1 and a lower mold 2; the movable plate 7 is connected with a plurality of central core wires 5, and the upper end of one central core wire 5 is connected with the corresponding cavity 4; the movable plate 7 is connected with the driving frame 6 through a reversing structure 8, and the driving frame 6 is connected with the motor 9a through a lead screw; the reversing structure 8 comprises a sliding block and a chute for accommodating the guiding sliding of the sliding block; chute and slider, one is set up on the drive frame 6, and another is set up on the fly leaf 7.
Setting the distance D 1 between the upper end of the central core 5 and the upper end of the cavity 4 at the beginning of glue injection according to the set glue injection speed V 1 and the glue injection pressure P; setting the descending speed V 2 of the central lithocarpy 5 according to V 1 and P; the inclination angle theta of the inclined surface of the chute, the slip speed of the driving frame 6The screw and its corresponding nut block have a certain value of transmission ratio k, the motor 9a rotates speed/>The nut block is connected to the driving frame 6 or integrally formed on the driving frame 6.
The injection molding process includes steps a to d. Step a, the upper die 1 and the lower die 2 are clamped, the motor 9a drives the driving frame 6 to slide so as to enable the center core 5 to move, and when the distance D 1 between the upper end of the center core 5 and the upper end of the cavity 4 is kept, the center core 5 pauses, and glue injection in the cavity 4 begins. And b, after the part of the cavity 4 above the upper end of the central core 5 is filled, the motor 9a drives the central core 5 to move downwards at the rotating speed w. Step c, the motor 9a is suspended when the distance D 2 between the upper end of the central core 5 and the upper end of the cavity 4 is kept; and stopping injecting the glue after the material is filled in the space between the upper end of the center core 5 and the upper end of the cavity 4 and between the center core 5 and the inner wall of the cavity 4. And d, opening the upper die 1 and the lower die 2, separating the product from the upper die 1, and taking the product out of the lower die 2. The central core 5 is also used for ejecting out the product; in step d, after the product is cooled and shaped, when the motor 9a drives the central core 5 to ascend, the product can be separated from the lower die 2.
The automatic feeding device also comprises a feeding manipulator, wherein the feeding manipulator grabs the product after the lower end of the product is higher than the lower die 2, and can pull the product away from the central core 5 so as to be taken away.
In the step a, before the central core 5 pauses, the central core 5 firstly ascends to enable the distance D 3 between the upper end of the central core 5 and the upper end of the cavity 4, wherein D 3<D1; then the central core 5 descends again, and when the distance D 1 between the upper end of the central core 5 and the upper end of the cavity 4 is reached, the central core 5 pauses. The reverse gap of the screw rod and the corresponding nut block is D 4; in step a, D 3<D1-kD4. By eliminating the reverse gap, the phenomenon that the central core 5 moves downwards and the tread is empty is avoided in the injection molding process; that is, the central core 5 is stopped immediately after rising to D 1, then the injection is started, and then the central core 5 starts to descend, in which case the immediately preceding stage of the central core 5 that begins to descend is a step-over process, and the ratio of the rotation angle of the motor 9a to the descending height of the central core 5 deviates greatly from the transmission ratio.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
The above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and any modifications or equivalent substitutions without departing from the spirit and scope of the present invention should be covered in the scope of the technical solution of the present invention.
Claims (6)
1. An injection molding method, which adopts a mold with a changeable mold cavity in the injection molding process, is characterized in that:
A plurality of cavities (4) are arranged at the connecting positions between the upper die (1) and the lower die (2); the movable plate (7) is connected with a plurality of central core (5), and the upper end of one central core (5) is connected to the corresponding cavity (4); the movable plate (7) is connected with the driving frame (6) through the reversing structure (8), the driving frame (6) is connected with the motor (9 a) through a lead screw, and the reverse gap of the lead screw and the corresponding nut block is ; The reversing structure (8) comprises a chute and a sliding block; the chute and the sliding block are arranged on the driving frame (6) and the other one is arranged on the movable plate (7); the movable plate (7) is also connected with a first guide structure for controlling the movable plate to vertically move; the driving frame (6) transversely slides and is used for driving the upper end of the central core (5) to lift in the cavity (4); the driving frame (6) is connected with a lead screw and a second guiding structure, and the lead screw is connected with a motor (9 a); when the motor (9 a) drives the screw rod to rotate, the driving frame (6) slides along the second guiding structure;
According to the set glue injection speed And injection pressure/>Setting the distance between the upper end of the central core (5) and the upper end of the cavity (4) at the beginning of glue injection as/>; According to/>And/>Setting the rate of descent/>, of the central core (5); Inclination angle of inclined groove slope/>Slip speed/>, of the drive carrier (6); The screw rod and the corresponding nut block have a certain transmission ratio/>The rotation speed of the motor (9 a); The nut block is connected to the driving frame (6) or integrally formed on the driving frame (6); the injection molding process comprises the following steps:
Step a, the upper die (1) and the lower die (2) are clamped, a motor (9 a) drives a driving frame (6) to slide so as to enable a center core (5) to move, and the distance between the upper end of the center core (5) and the upper end of a cavity (4) is When the central core (5) is lifted, the distance between the upper end of the central core (5) and the upper end of the cavity (4) is equal to/>Wherein/>And/>; Then the central core (5) descends again, and the distance between the upper end of the central core (5) and the upper end of the cavity (4) is/>When the central mold (5) is suspended, the glue injection in the cavity (4) is started;
step b, after the upper end part of the high Yu Zhongxin KO (5) of the cavity (4) is filled, the motor (9 a) rotates at a speed Driving the central lithocarpus (5) to move downwards;
step c, the distance between the upper end of the central core (5) and the upper end of the cavity (4) is The motor (9 a) is suspended; the distance between the upper end of the central core (5) and the upper end of the cavity (4) is/>And after the space between the central core (5) and the inner wall of the cavity (4) is filled with materials, stopping injecting glue; and d, opening the upper die (1) and the lower die (2), separating the product from the upper die (1), and taking the product out of the lower die (2).
2. An injection molding process according to claim 1, wherein: the central core (5) is also used for ejecting the product; in the step d, after the product is cooled and shaped, the product can be separated from the lower die (2) when the motor (9 a) drives the central core (5) to ascend.
3. An injection molding process according to claim 2, wherein: the automatic feeding device is characterized by further comprising a feeding mechanical arm, wherein the feeding mechanical arm is used for grabbing a product after the lower end of the product is higher than the lower die (2), and the product can be pulled out of the central core (5) and further removed.
4. An injection molding process according to claim 1, wherein: the driving frame (6) is U-shaped, and two side walls of the U-shape are correspondingly connected with two side ends of the movable plate (7) through reversing structures (8) respectively.
5. An injection molding process according to claim 4, wherein: the side end of the movable plate (7) is provided with a sliding block, and the side wall of the U shape is provided with a chute for accommodating sliding of the sliding block.
6. An injection molding process according to claim 1, wherein: the lower die (2) is connected with a fixed plate (3), and the first guide structure comprises a guide rod (3 a) and a guide hole; the guide rod (3 a) and the guide hole are arranged on the movable plate (7) and the other guide rod is arranged on the fixed plate (3) and/or the lower die (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910259234.0A CN110126190B (en) | 2019-04-02 | 2019-04-02 | Die with changeable die cavity in injection molding process and injection molding process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910259234.0A CN110126190B (en) | 2019-04-02 | 2019-04-02 | Die with changeable die cavity in injection molding process and injection molding process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110126190A CN110126190A (en) | 2019-08-16 |
| CN110126190B true CN110126190B (en) | 2024-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910259234.0A Active CN110126190B (en) | 2019-04-02 | 2019-04-02 | Die with changeable die cavity in injection molding process and injection molding process thereof |
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| CN (1) | CN110126190B (en) |
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| US5008064A (en) * | 1989-06-05 | 1991-04-16 | Primtec | Injection-molding dimension-control and clamp-reduction |
| CN106142463A (en) * | 2016-08-19 | 2016-11-23 | 高精科技(苏州)有限公司 | Core packaged type injection forming mold and forming method thereof |
| CN107030968A (en) * | 2017-05-27 | 2017-08-11 | 上海秉创电子科技有限公司 | Model material block lamination injection mold |
| CN206416428U (en) * | 2016-12-27 | 2017-08-18 | 青岛佳友模具科技有限公司 | A kind of staged mould structure of achievable multi-layer injection molding |
| CN207736641U (en) * | 2017-12-22 | 2018-08-17 | 宁波公牛电器有限公司 | A kind of plastic rubber material block lamination injection-moulding device |
| CN209755909U (en) * | 2019-04-02 | 2019-12-10 | 精英制模实业(深圳)有限公司 | Mould with changeable mould cavity in injection molding process |
-
2019
- 2019-04-02 CN CN201910259234.0A patent/CN110126190B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5008064A (en) * | 1989-06-05 | 1991-04-16 | Primtec | Injection-molding dimension-control and clamp-reduction |
| CN106142463A (en) * | 2016-08-19 | 2016-11-23 | 高精科技(苏州)有限公司 | Core packaged type injection forming mold and forming method thereof |
| CN206416428U (en) * | 2016-12-27 | 2017-08-18 | 青岛佳友模具科技有限公司 | A kind of staged mould structure of achievable multi-layer injection molding |
| CN107030968A (en) * | 2017-05-27 | 2017-08-11 | 上海秉创电子科技有限公司 | Model material block lamination injection mold |
| CN207736641U (en) * | 2017-12-22 | 2018-08-17 | 宁波公牛电器有限公司 | A kind of plastic rubber material block lamination injection-moulding device |
| CN209755909U (en) * | 2019-04-02 | 2019-12-10 | 精英制模实业(深圳)有限公司 | Mould with changeable mould cavity in injection molding process |
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| Publication number | Publication date |
|---|---|
| CN110126190A (en) | 2019-08-16 |
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