CN214000367U - Polyolefin plastic daily necessities injection mold based on injection molding grade nano calcium carbonate - Google Patents
Polyolefin plastic daily necessities injection mold based on injection molding grade nano calcium carbonate Download PDFInfo
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- CN214000367U CN214000367U CN202022445728.9U CN202022445728U CN214000367U CN 214000367 U CN214000367 U CN 214000367U CN 202022445728 U CN202022445728 U CN 202022445728U CN 214000367 U CN214000367 U CN 214000367U
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Abstract
The utility model provides a polyolefin plastics daily necessities injection mold based on level of moulding plastics nanometer calcium carbonate belongs to the injection mold field. The mold comprises a movable mold plate and a fixed mold plate, wherein two mold cores which are mutually opposite are arranged on the movable mold plate, the area of the end surface of each mold core, which is close to the fixed mold plate, is smaller than the area of the end surface of each mold core, which is far away from the fixed mold plate, each mold core is provided with a plurality of side surfaces, and the side surfaces of each mold core are inclined. Its advantage lies in having the contained angle between the side of receiver after the shaping and the ejecting direction, consequently can reduce the adhesion that needs overcome at ejecting in-process, prevents that the receiver from damaging, improves the product percent of pass.
Description
Technical Field
The utility model belongs to the injection mold field especially relates to a polyolefin plastics daily necessities injection mold based on level of moulding plastics nanometer calcium carbonate.
Background
There are many kinds of storage boxes, for example, sanitation, storage boxes used in sanitation systems, or storage boxes for storing clothes, the storage box is a part of an end cover, the wall is thin, easy-to-pull deformation and easy-to-eject deformation, and because the length of the formed storage box is high, the adhesion force between the storage box and the inner wall of the forming cavity is very large, and because a plurality of sides of the existing storage box are vertical to the ground when in use, a plurality of sides of the storage box are arranged in parallel, when in demolding, the formed storage box adheres to a mold core, in the ejecting process, because the ejecting direction is parallel to the sides of the storage box, the large adhesion force needs to be overcome, and the storage box is easily damaged.
For example, chinese patent document discloses a garbage can injection mold [ patent application No.: CN201922187226.8], which comprises a movable die and a fixed die, wherein the movable die is provided with a die core, the fixed die is provided with a die cavity, a die cavity for molding the garbage can is formed between the die core and the die cavity, and one side of the fixed die, which is back to the movable die, is provided with a pouring gate communicated with the die cavity; lie in the mold core root on the movable mould and be equipped with the subassembly of unloading, the subassembly of unloading is assembled and to be ejecting to the cover half place orientation with the garbage bin on the mold core when movable mould and cover half separation but because fashioned garbage bin length is higher, consequently and the shaping intracavity wall between the adhesion just very big, the ejecting mode of ejector pin that adopts traditional mode in drawing of patterns in-process leads to the garbage bin to break very easily to lead to the product percent of pass to reduce.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned problem, provide a polyolefin plastics daily necessities injection mold based on level of moulding plastics nanometer calcium carbonate.
In order to achieve the above purpose, the utility model adopts the following technical proposal:
the utility model provides a polyolefin plastics daily necessities injection mold based on level of moulding plastics nanometer calcium carbonate, includes movable mould board and fixed die plate, the movable mould board on be equipped with two cores that mutually oppose, the terminal surface area that each core is close to the fixed die plate is less than the terminal surface area that the fixed die plate was kept away from to the core, every core has a plurality of side, just a plurality of side of core be the slope form.
In the injection mold for the polyolefin plastic daily necessities based on the injection-grade nano calcium carbonate, the connecting parts among a plurality of side surfaces of the mold core are in a curved surface shape, and the connecting parts between each side surface and the end surface of the mold core, which is close to the fixed mold plate, are also in a curved surface shape.
In the injection molding-grade nano calcium carbonate-based polyolefin plastic daily necessities injection mold, the fixed mold plate is provided with two molding cavities which correspond to the mold cores one by one, the fixed mold plate is provided with an injection molding port, the injection molding port is connected with a heat splitter plate, the heat splitter plate is provided with two outlets, and the two outlets are respectively communicated with the two molding cavities.
In the injection molding-grade nano calcium carbonate-based polyolefin plastic daily necessities injection mold, the fixed template is provided with a circle of abutting inner ring, the abutting inner ring extends out of the fixed template towards the direction close to the movable template, the two molding cavities are positioned in the abutting inner ring, and the movable template is provided with an abutting outer ring corresponding to the abutting inner ring.
In the injection molding-grade nano calcium carbonate-based polyolefin plastic daily necessities injection mold, the side surface of the abutting inner ring is composed of the inclined surface ring and the abutting surface ring, the abutting surface ring is matched with the abutting outer ring, the inclined surface ring is positioned at one end, far away from the fixed template, of the abutting inner ring, and the inclined surface ring is inclined.
In the injection molding-grade nano calcium carbonate-based polyolefin plastic daily necessities injection mold, the outer side of each molding cavity is also provided with a circle of exhaust grooves arranged on the abutting inner ring, and the two exhaust grooves are communicated.
In the injection mold for the polyolefin plastic daily necessities based on the injection-grade nano calcium carbonate, a plurality of cooling grooves are arranged in each core.
In the injection molding-grade nano calcium carbonate-based polyolefin plastic daily necessities injection mold, the cooling grooves are sequentially arranged along the side surface of the mold core at equal intervals, and the cooling rings are formed by a plurality of cooling grooves.
In the injection molding-grade nano calcium carbonate-based polyolefin plastic daily necessities injection mold, the cooling groove is arranged in the mold core, two ends of the cooling groove are communicated with a circle of exchange groove, the exchange groove of the mold core far away from the fixed mold plate penetrates through the mold core, and the plurality of cooling grooves are sequentially connected to form the serpentine tube groove.
In the injection molding-grade nano calcium carbonate-based polyolefin plastic daily necessities injection mold, four ejector rods are connected in each mold core in a sliding manner and are respectively positioned at four end corners of the mold core.
Compared with the prior art, the utility model has the advantages of:
1. the utility model provides a plurality of side of core is the slope form, has the contained angle between the side of the receiver after the shaping and the ejecting direction, consequently can reduce the adhesive force that needs to overcome at ejecting in-process, prevents that the receiver from damaging, improves the product percent of pass.
2. The utility model provides a junction between core a plurality of side is the curved surface form, and consequently junction between each terminal surface can not form sharp end angle, at ejecting in-process, can prevent the end angle wearing and tearing receiver, improves the product percent of pass.
Drawings
Fig. 1 is an overall schematic view of the present invention;
FIG. 2 is a schematic structural view of a moving platen;
FIG. 3 is a schematic structural diagram of a fixed die plate;
fig. 4 is a schematic view of the structure of the core.
In the figure: the injection molding machine comprises a movable mold plate 10, a fixed mold plate 11, a mold core 12, a molding cavity 13, an injection molding opening 14, a heat flow distribution plate 15, an abutting inner ring 16, an abutting outer ring 17, a slope ring 18, an abutting surface ring 19, an exhaust groove 20, a cooling groove 21, an exchange groove 22 and a push rod 23.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 4, the injection molding-grade nano calcium carbonate-based polyolefin plastic daily necessities injection mold comprises a movable mold plate 10 and a fixed mold plate 11, wherein two mold cores 12 which are opposite to each other are arranged on the movable mold plate 10, the area of the end surface, close to the fixed mold plate 11, of each mold core 12 is smaller than the area of the end surface, far away from the fixed mold plate 11, of each mold core 12, each mold core is provided with a plurality of side surfaces, and the side surfaces of the mold cores 12 are inclined.
Because the receiver is longer, and the side of receiver is the vertical form with ground when using, a plurality of side and the parallel arrangement of receiver, when the drawing of patterns, the receiver adhesion after the shaping is on core 12, at ejecting in-process, because ejecting direction is parallel with the receiver side, need overcome great adhesion, leads to the receiver to damage easily. Therefore the utility model discloses in, set up the slope of a plurality of side of core 12, have the contained angle between the side of the receiver after the shaping and the ejecting direction, consequently can reduce the adhesive force that needs to overcome at ejecting in-process, prevent that the receiver from damaging, improve the product percent of pass. In addition, the injection molding liquid adopted by the injection mold is made of polyolefin and added with injection molding grade nano calcium carbonate, so that the formed storage box has better strength.
The connecting parts between a plurality of side surfaces of the core 12 are curved, and the connecting parts between each side surface and the end surface of the core 12 close to the fixed die plate 11 are also curved.
The utility model discloses in, connect through the curved surface between the junction between each terminal surface, consequently junction between each terminal surface can not form sharp end angle, at ejecting in-process, can prevent the end angle wearing and tearing receiver.
The fixed die plate 11 is provided with two forming cavities 13 which are in one-to-one correspondence with the cores 12, the fixed die plate 11 is provided with an injection molding port 14, the injection molding port 14 is connected with a heat flow distribution plate 15, the heat flow distribution plate 15 is provided with two outlets, and the two outlets are respectively communicated with the two forming cavities 13.
The utility model discloses in, the liquid of moulding plastics is through the hot flow distribution plate 15 reposition of redundant personnel evenly and pour into two molding cavity 13 simultaneously in to annotate molding cavity 13 simultaneously, the mouth 14 of moulding plastics only one in traditional injection mold is connected with the passageway of moulding plastics between a plurality of molding cavity 13, shunts to a plurality of molding cavity 13 in through this passageway of moulding plastics, causes a plurality of molding cavity to mould plastics speed inhomogeneous easily.
The fixed die plate 11 is provided with a circle of inner abutting ring 16, the inner abutting ring 16 extends out of the fixed die plate 11 towards the direction close to the movable die plate 10, the two molding cavities 13 are positioned in the inner abutting ring 16, and the movable die plate 10 is provided with an outer abutting ring 17 corresponding to the inner abutting ring 16.
The utility model discloses in, when the compound die, support inner circle 16 extend go into support outer lane 17 in and offset with supporting outer lane 17, prevent to take place the skew between fixed die plate 11 and the movable mould board 10 under the high pressure condition of moulding plastics.
The side surface of the inner abutting ring 16 is composed of an inclined surface ring 18 and an abutting surface ring 19, the abutting surface ring 19 is matched with the outer abutting ring 17, the inclined surface ring 18 is located at one end, far away from the fixed die plate 11, of the inner abutting ring 16, and the inclined surface ring 18 is inclined.
The utility model discloses in, the bevel ring 18 plays the guide effect, prevents to support inner circle 16 direct extrusion to hit on supporting outer lane 17 at the compound die in-process.
The outer side of each forming cavity 13 is also provided with a circle of air discharge grooves 20 arranged on the inner abutting ring 16, and the two air discharge grooves 20 are communicated with each other.
The utility model discloses in, make two molding cavity 13 have the same pressure size at the in-process of moulding plastics, prevent to take place the skew between fixed die plate 11 and the movable mould board 10 under the high pressure condition of moulding plastics.
A plurality of cooling channels 21 are formed through each core 12.
The cooling grooves 21 are sequentially arranged along the side surface of the core 12 at equal intervals, and the plurality of cooling grooves 21 form a cooling ring.
Wear to be equipped with the cooling tube in the cooling bath 21, the circulation has cooling water or coolant oil in the cooling tube, and after injection moulding accomplished, the receiver cooling after the coolant liquid of circulation in the cooling tube made the shaping fast, and a plurality of cooling tube sets gradually along the equidistant of core 12 side, makes the cooling rate of each part of containing box about the same, prevents that the too big piece that moulds that leads to of cooling rate difference from warping.
The cooling groove 21 is arranged in the core 12, two ends of the cooling groove 21 are communicated with a circle of exchange grooves 22, the core 12 is far away from the exchange grooves 22 of the fixed die plate 11 and penetrates through the core 12, and the cooling grooves 21 are sequentially connected to form a serpentine tube groove.
Each core 12 is connected with four ejector rods 23 in a sliding manner, and the four ejector rods 23 are respectively positioned at four end corners of the core 12.
The utility model discloses in, at the drawing of patterns in-process, four ejector pins 23 push up respectively in four end angle departments of receiver, prevent the receiver because the damage that the ejecting power distribution is inhomogeneous leads to ejecting in-process.
The utility model discloses a theory of operation does: the injection molding liquid is injected into the two molding cavities 13, and the injection molding liquid fills the gap between the molding cavities 13 and the mold core 12 to form the storage box. After injection molding, the cooling pipe is filled with water for rapid cooling, and then the plurality of ejector rods 23 are ejected out of the storage box at the end corners of the storage box.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the movable mold plate 10, the fixed mold plate 11, the core 12, the molding cavity 13, the injection molding port 14, the thermal distribution plate 15, the abutting inner ring 16, the abutting outer ring 17, the inclined ring 18, the abutting face ring 19, the exhaust groove 20, the cooling groove 21, the exchanging groove 22, the ejector rod 23, etc. are used more frequently herein, these terms are used only for the convenience of describing and explaining the essence of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (10)
1. The polyolefin plastic daily necessities injection mold based on injection molding grade nano calcium carbonate comprises a movable mold plate (10) and a fixed mold plate (11), and is characterized in that two mold cores (12) which are opposite to each other are arranged on the movable mold plate (10), the end surface area of each mold core (12) close to the fixed mold plate (11) is smaller than the end surface area of each mold core (12) far away from the fixed mold plate (11), each mold core is provided with a plurality of side surfaces, and the side surfaces of each mold core (12) are inclined.
2. The injection molding nanometer calcium carbonate-based polyolefin plastic daily necessities injection mold according to claim 1, wherein the joints among a plurality of side surfaces of the core (12) are curved, and the joints between each side surface and the end surface of the core (12) close to the fixed mold plate (11) are also curved.
3. The injection molding-grade nano calcium carbonate-based polyolefin plastic daily necessities injection mold as claimed in claim 2, wherein the fixed mold plate (11) is provided with two molding cavities (13) corresponding to the mold core (12) one by one, the fixed mold plate (11) is provided with an injection molding port (14), the injection molding port (14) is connected with a heat flow distribution plate (15), and the heat flow distribution plate (15) is provided with two outlets which are respectively communicated with the two molding cavities (13).
4. The injection molding-grade nano calcium carbonate-based polyolefin plastic commodity injection mold as claimed in claim 3, wherein a circle of inner abutting ring (16) is arranged on the fixed mold plate (11), the inner abutting ring (16) extends out of the fixed mold plate (11) in the direction close to the movable mold plate (10), the two molding cavities (13) are located in the inner abutting ring (16), and an outer abutting ring (17) corresponding to the inner abutting ring (16) is arranged on the movable mold plate (10).
5. The injection molding-grade nano calcium carbonate-based polyolefin plastic commodity injection mold according to claim 4, wherein the side surface of the abutting inner ring (16) is composed of a bevel ring (18) and an abutting ring (19), the abutting ring (19) is matched with the abutting outer ring (17), the bevel ring (18) is positioned at one end of the abutting inner ring (16) far away from the fixed mold plate (11), and the bevel ring (18) is inclined.
6. The polyolefin plastic daily necessities injection mold based on injection-molded grade nano calcium carbonate as claimed in claim 5, wherein the outer side of each molding cavity (13) is further provided with a circle of vent grooves (20) arranged on the inner abutting ring (16), and the two vent grooves (20) are communicated with each other.
7. The injection molding grade nano calcium carbonate-based polyolefin plastic commodity injection mold according to claim 6, wherein a plurality of cooling grooves (21) are arranged in each core (12) in a penetrating way.
8. The injection molding grade nano calcium carbonate based polyolefin plastic daily necessities injection mold as claimed in claim 7, wherein the cooling grooves (21) are sequentially arranged along the side surface of the core (12) at equal intervals, and a plurality of cooling grooves (21) form a cooling ring.
9. The injection molding-grade nano calcium carbonate-based polyolefin plastic daily necessities injection mold as claimed in claim 8, wherein the cooling groove (21) is arranged in the core (12), two ends of the cooling groove (21) are both communicated with a circle of exchange groove (22), the exchange groove (22) of the core (12) far away from the fixed mold plate (11) penetrates through the core (12), and a plurality of cooling grooves (21) are sequentially connected to form a serpentine tube groove.
10. The injection molding grade nano calcium carbonate based polyolefin plastic daily necessities injection mold according to claim 9, wherein four ejector rods (23) are slidably connected in each core (12), and the four ejector rods (23) are respectively positioned at four corners of the core (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022445728.9U CN214000367U (en) | 2020-10-28 | 2020-10-28 | Polyolefin plastic daily necessities injection mold based on injection molding grade nano calcium carbonate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022445728.9U CN214000367U (en) | 2020-10-28 | 2020-10-28 | Polyolefin plastic daily necessities injection mold based on injection molding grade nano calcium carbonate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214000367U true CN214000367U (en) | 2021-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022445728.9U Active CN214000367U (en) | 2020-10-28 | 2020-10-28 | Polyolefin plastic daily necessities injection mold based on injection molding grade nano calcium carbonate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214000367U (en) |
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- 2020-10-28 CN CN202022445728.9U patent/CN214000367U/en active Active
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