CN222079943U - Plastic base forming die - Google Patents
Plastic base forming die Download PDFInfo
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- CN222079943U CN222079943U CN202422337803.8U CN202422337803U CN222079943U CN 222079943 U CN222079943 U CN 222079943U CN 202422337803 U CN202422337803 U CN 202422337803U CN 222079943 U CN222079943 U CN 222079943U
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- 238000000465 moulding Methods 0.000 claims abstract description 66
- 239000000463 material Substances 0.000 claims description 21
- 238000001816 cooling Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 8
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a plastic base forming die which comprises a forming bottom plate, wherein the forming bottom plate is provided with at least one die core, the die core is connected with a movable first insert, the first insert is connected with the die core through an inclined plane, the first insert slides along the inclined plane to be close to the center of the die core, the die core is also connected with a second insert, the first insert and the second insert are spliced on a groove on the outer side wall of the die core, the first insert and the second insert are oppositely arranged, and the top of the first insert and the top of the second insert are connected with nozzles. The mold core provided by the utility model can facilitate demolding of the inner wall of the base, improve the base molding precision and accelerate the base molding speed.
Description
Technical Field
The utility model relates to the field of injection molds, in particular to a plastic base molding mold.
Background
Fig. 1 shows a perspective view of a base of the stirrer, and the base 111 is manufactured by injection molding, so that a corresponding injection mold is designed for molding the base 111.
Fig. 2 shows an axial sectional view of the base 111, and a step 112 is provided on the left inner wall of the base 111. In the process of designing the mold core, the mold technician finds that the demolding direction after the step 112 is molded conflicts with the parting direction of the base, in short, the insert for molding the step needs to be displaced in the horizontal direction, and the mold core for molding the whole contour of the base moves in the vertical direction, and obviously, the two conflicts exist. Therefore, the mold core of the molding mold with the conventional structure cannot be applied to the base molding mold, and improvement of the mold core of the mold is required.
Disclosure of utility model
The utility model aims to provide a plastic base molding die, and the die core of the die can facilitate the demolding of the inner wall of a base, improve the base molding precision and accelerate the base molding speed.
In order to achieve the purpose, the plastic base forming die comprises a forming bottom plate, wherein the forming bottom plate is provided with at least one die core, the die core is connected with a movable first insert, the first insert is connected with the die core through an inclined plane, the first insert slides along the inclined plane to be close to the central position of the die core, the die core is also connected with a second insert, the first insert and the second insert are spliced on a groove on the outer side wall of the die core, the first insert and the second insert are oppositely arranged, and the top of the first insert and the top of the second insert are connected with nozzles.
Compared with the prior art, the mold has the advantages that the mold is provided with the mold core on the molding bottom plate, the mold core is connected with the movable first insert, the connecting surface of the first insert and the mold core is designed to be an inclined surface, and the first insert can slide along the inclined surface and draw close to the center position of the mold core. The design effectively solves the problem that the demoulding direction is in conflict with the parting direction of the base after the step on the inner wall of the base is formed, and ensures the smooth demoulding of the step part. In addition, the mold core is also connected with a second insert, and the first insert and the second insert are spliced on the groove of the outer side wall of the mold core, and the two inserts are respectively connected with a nozzle, so that the feeding speed into the mold is increased, the molding speed is increased, the two inserts are oppositely arranged, the feeding speed is kept as consistent as possible, the feeding can be uniform, the quality of the base is improved, and the molding quality of the base is ensured.
In some embodiments of the present utility model, the molding bottom plate is connected with a molding die frame, the molding die frame and the molding bottom plate are overlapped up and down, the molding die frame is provided with at least one die hole for matching with the mold core, and a first molding gap is reserved between the first insert and the second insert and the inner wall of the die hole. The design enables the mold core and the mold hole to form a required molding space, and simultaneously, the first molding gap between the first insert and the second insert and the inner wall of the mold hole ensures that plastic materials can flow into and fill into the correct position, so that the molding precision and the surface quality of the base can be ensured.
In some embodiments of the present utility model, a die insert is disposed above the die hole, the die insert can be clamped up and down with the die core, a second molding gap is reserved between the top of the first insert, the top of the second insert and the die insert, and the first molding gap is connected with the second molding gap. The design ensures the tightness when the mold is closed, and the existence of the second molding gap enables the plastic material to flow between the first molding gap and the second molding gap, so that the uniform distribution of the materials in the molding process is further ensured, and the molding quality of the base is improved.
In some embodiments of the utility model, the die insert is provided with a port connected to the second molding gap, and the nozzle is connected to the port on the die insert. The design is convenient for injecting plastic materials, the connection of the nozzle and the material port ensures that the materials can smoothly flow into the die, the rapid filling of the materials is ensured, and the forming speed is accelerated.
In some embodiments of the present utility model, the first molding gap includes a step molding gap, and the molding die frame is connected with a movable slider, and the slider is matched with the first insert, and the step molding gap is formed between the slider and the first insert. The design makes the mould adapt to the shaping of the inside step structure of base, through the cooperation between slider and the first mold insert, has ensured the accurate shaping of step part, has solved the problem that step part is difficult to the drawing of patterns in traditional mould.
In some embodiments of the present utility model, the slider is connected to an oil cylinder assembly, and the oil cylinder assembly can drive the slider to move away from the direction of the first insert. The oil cylinder assembly provides power for the side core pulling movement of the sliding block, so that the action of the sliding block is more stable and controllable, and the sliding block can be effectively driven to move, thereby helping the demolding process and improving the automation degree and the production efficiency of the mold.
In some embodiments of the present utility model, the mold core is provided with a positioning hole, the die insert is provided with two material openings, and the two material openings are symmetrically arranged about the positioning hole. The design ensures that the die can be accurately positioned when being closed, and symmetrical material openings ensure uniform distribution of materials, thereby being beneficial to improving the symmetry and consistency of base molding.
In some embodiments of the utility model, the sliding block is provided with a cooling flow passage, the oil cylinder assembly is in transmission connection with the sliding block through a connecting block, the connecting block is provided with a circulating flow passage connected with the cooling flow passage, and the connecting block is provided with an inlet and an outlet of the circulating flow passage. The design is beneficial to the temperature control of the die, ensures the cooling effect in the forming process, and improves the forming quality and the production efficiency of the base.
Drawings
FIG. 1 is a perspective view of a base;
FIG. 2 is a schematic axial cross-section of a base;
FIG. 3 is a cross-sectional view of a mold core;
FIG. 4 is a perspective view of a mold core;
FIG. 5 is an exploded view of a female mold insert and a molding die;
FIG. 6 is a cross-sectional view of the present utility model;
Fig. 7 is a cross-sectional view of the connection block.
In the figure, 1, a forming bottom plate; 2, a mold core, 3, a first insert, 4, an inclined plane, 5, a second insert, 201, a groove, 7, a nozzle, 8, a top plate assembly, 9, a forming mold frame, 901, a mold hole, 11, a female mold insert, 12, a first forming gap, 13, a second forming gap, 1101, a material hole, 15, a sliding block, 121, a step forming gap, 17, an oil cylinder assembly, 202, a positioning pore channel, 151, a cooling flow channel, 20, a connecting block, 2001, a circulating flow channel, 2002, an inlet, 2003, an outlet, 24 and a limiting block.
Detailed Description
The present utility model will be further described with reference to the following specific embodiments, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.
In the description of the present utility model, it should be noted that, for the azimuth words such as terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present utility model and simplifying the description, and it is not to be construed as limiting the specific scope of protection of the present utility model that the device or element referred to must have a specific azimuth configuration and operation.
It should be noted that the terms "first," "second," and the like in the description and in the claims are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.
The terms "comprises" and "comprising," along with any variations thereof, in the description and claims, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
As shown in fig. 1-7, the plastic base forming die comprises a forming bottom plate 1, wherein the forming bottom plate 1 is provided with two die cores 2, the two die cores 2 are arranged at intervals, each die core 2 is connected with a movable first insert 3, the first insert 3 is connected with the die cores 2 through inclined planes 4, the first insert 3 can slide along the inclined planes 4 to approach the center of the die cores 2, the die cores 2 are also connected with a second insert 5, in order to facilitate the splicing of the first insert 3 and the second insert 5 with the die cores 2, the die cores 2 are provided with two grooves 201, the first insert 3 and the second insert 5 are correspondingly spliced on the two grooves 201 on the outer side wall of the die cores 2, in order to improve the forming speed of a base, the top of the first insert 3 and the top of the second insert 5 are connected with nozzles 7, and in order to ensure uniform feeding of the base, the first insert 3 and the second insert 5 are oppositely arranged.
In the structure, the first insert 3 is obliquely arranged in the die, the first insert 3 is connected with the top plate assembly 8 in the die, the top plate assembly 8 moves upwards to drive the first insert 3 to slide along the inclined plane 4, so that the first insert 3 can obliquely eject out of the base, displacement is generated in the vertical direction and the horizontal direction in the whole movement process, the first insert 3 is close to the center of the die core 2 in the process of obliquely ejection, and the first insert 3 is automatically separated from the base after the base is ejected out. It should be noted that the connection between the first insert 3 and the mold core 2 through the inclined surface 4 means that at least one surface of the first insert 3 is connected to the mold core 2 through the inclined surface 4, and the inclined surface 4 can play a guiding role, so that the first insert 3 slides along the inclined surface 4 to be close to the center of the mold core 2. In addition, how the top plate assembly 8 can move upward belongs to the prior art in the injection mold, and is not described here again.
Further, the forming bottom plate 1 is connected with a forming die frame 9, the forming die frame 9 is overlapped with the forming bottom plate 1 up and down, the forming die frame 9 is provided with two die holes 901, the two die holes 901 are correspondingly matched with the two die cores 2, and a first forming gap 12 is reserved between the first insert 3 and the second insert 5 and the inner wall of the die holes 901. It should be noted that the forming mold frame 9 and the forming base plate 1 can be separated during mold parting.
Further, a die insert 11 is provided above the die hole 901, and the die insert 11 can be vertically clamped with the die core 2. A second molding gap 13 is reserved among the top of the first insert 3, the top of the second insert 5 and the die insert 11, and the first molding gap 12 is connected with the second molding gap 13. Two die inserts 11 are arranged on the forming die frame 9, and the two die inserts 11 are arranged at intervals and respectively correspond to the two die cores 2 for die assembly. It is noted that the center position of the top of the mold core 2 is offset from the center position of the bottom of the female mold, and in addition, when the mold is separated, the two female mold inserts 11 are linked with the forming mold frame 9.
Further, the die insert 11 is provided with two material openings 1101, the two material openings 1101 are connected to the second molding gap 13, the two nozzles 7 are inserted into the die insert 11, and the two material openings 1101 are correspondingly connected to the two nozzles 7.
Further, in order to facilitate demolding after the base is molded, a slide block 15 capable of performing side core pulling is additionally arranged in the mold, the slide block 15 is movably connected with the molding mold frame 9, the slide block 15 is matched with the first insert 3, one end of the slide block 15, which faces the first insert 3, and the first insert 3 form a step molding gap 121, and the first molding gap 12 comprises the step molding gap 121. It should be noted that, before the mold is separated, the mold needs to be removed by side core pulling, that is, the slide block 15 needs to be translated laterally to separate from the base, before the mold separation can be started.
Further, in order to provide power for the core pulling movement of the slide block 15, the slide block 15 is further connected with an oil cylinder assembly 17, the oil cylinder assembly 17 can drive the slide block 15 to move away from the direction of the first insert 3, and the oil cylinder assembly 17 is detachably connected with an upper die frame of the die.
Further, the mold core 2 is further provided with a positioning hole 202, the die insert 11 is provided with two material openings 1101, and the two material openings 1101 are symmetrically arranged with respect to the positioning hole 202.
Further, in order to improve the molding speed of the base and the precision of the base, a cooling flow channel 151 is further provided on the slide block 15, the oil cylinder assembly 17 is in transmission connection with the slide block 15 through a connecting block 20, the connecting block 20 is provided with a circulating flow channel 2001 connected with the cooling flow channel 151, and the connecting block 20 is provided with an inlet 2002 and an outlet 2003 of the circulating flow channel 2001.
Further, in order to prevent displacement transition of the sliding block 15, a limiting block 24 is arranged on a lower die frame of the die, the limiting block 24 protrudes from the lower die frame, the upper end of the limiting block 24 is inserted into the connecting block 20, and the limiting block 24 is movably matched with the connecting block 20.
The foregoing has outlined the basic principles, features, and advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422337803.8U CN222079943U (en) | 2024-09-25 | 2024-09-25 | Plastic base forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422337803.8U CN222079943U (en) | 2024-09-25 | 2024-09-25 | Plastic base forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222079943U true CN222079943U (en) | 2024-11-29 |
Family
ID=93603069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422337803.8U Active CN222079943U (en) | 2024-09-25 | 2024-09-25 | Plastic base forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222079943U (en) |
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2024
- 2024-09-25 CN CN202422337803.8U patent/CN222079943U/en active Active
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