CN220429138U - Plastic tableware injection molding die with cavity exhaust mechanism - Google Patents
Plastic tableware injection molding die with cavity exhaust mechanism Download PDFInfo
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- CN220429138U CN220429138U CN202321866099.4U CN202321866099U CN220429138U CN 220429138 U CN220429138 U CN 220429138U CN 202321866099 U CN202321866099 U CN 202321866099U CN 220429138 U CN220429138 U CN 220429138U
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- cavity
- exhaust
- core
- injection molding
- insert
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 41
- 229920003023 plastic Polymers 0.000 title claims abstract description 34
- 239000004033 plastic Substances 0.000 title claims abstract description 34
- 238000000465 moulding Methods 0.000 claims abstract description 25
- 238000013519 translation Methods 0.000 claims abstract description 10
- 238000013022 venting Methods 0.000 claims description 14
- 230000002512 anti-withdrawal effect Effects 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000010586 diagram Methods 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
- 238000003672 processing method Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model provides a plastic tableware injection molding die with a cavity exhaust mechanism, and belongs to the technical field of dies. The upper die plate and the lower die plate are respectively provided with an upper insert and a lower insert, two molding cavities are symmetrically arranged between the upper insert and the lower insert, the upper insert is provided with a cavity exhaust structure connected with the molding cavities, and the lower die plate is also provided with a translation core pulling mechanism connected with the two molding cavities. The exhaust structure of the cavity on the upper insert can increase the exhaust efficiency of gas in the molding cavity during injection molding, so that the injection molding efficiency can be increased, and the translational core-pulling mechanism can realize automatic core pulling during mold opening, so that the demolding efficiency of a product can be improved.
Description
Technical Field
The utility model belongs to the technical field of molds, and relates to a plastic tableware injection molding mold with a cavity exhaust mechanism.
Background
The injection mold is a tool for producing plastic products; is also a tool for endowing the plastic product with complete structure and precise size; injection molding is a processing method used in mass production of parts with complex shapes; specifically, the heated and melted plastic is injected into a die cavity under high pressure by an injection molding machine, and a formed product is obtained after cooling and solidification; in the prior art, plastic tableware is generally formed by injection molding through a mold, but when the plastic tableware injection mold in the prior art is used for injection molding, the exhaust speed of a cavity is low, so that the injection molding efficiency is low.
For example, china patent discloses a plastic tableware injection mold [ application number: 202222045249.7, including the link, electric telescopic handle is fixedly connected with on link inner wall top, electric telescopic handle bottom fixedly connected with ejector die, link inner wall bottom fixedly connected with a plurality of first springs and ejection mechanism, ejection mechanism top sliding connection has die block utensil, die cavity and ejection mechanism sliding connection that die block utensil top was seted up, die block utensil and ejector die middle part all are through a plurality of cooling mechanism of through-hole fixedly connected with.
Disclosure of Invention
The utility model aims to solve the problems and provides a plastic tableware injection molding die with a cavity exhaust mechanism.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the plastic tableware injection molding die with the cavity exhaust mechanism comprises an upper die plate and a lower die plate, wherein an upper insert and a lower insert are respectively arranged on the upper die plate and the lower die plate, two molding cavities are symmetrically arranged between the upper insert and the lower insert, a cavity exhaust structure connected with the molding cavities is arranged on the upper insert, and a translation core pulling mechanism connected with the two molding cavities is further arranged on the lower die plate.
In the plastic tableware injection molding die with the die cavity exhaust mechanism, the die cavity exhaust structure comprises a U-shaped exhaust channel which is concavely arranged on the upper insert, a plurality of first exhaust grooves and a plurality of second exhaust grooves are concavely arranged on the upper insert, two ends of the first exhaust grooves are respectively connected with the die cavity and the U-shaped exhaust channel, the inner ends of the second exhaust grooves are connected with the U-shaped exhaust channel, and the outer ends of the second exhaust grooves horizontally penetrate through the upper insert.
In the plastic tableware injection molding mold with the cavity exhaust mechanism, the opening of the U-shaped exhaust channel faces to one side of the translation core pulling mechanism.
In the plastic tableware injection molding die with the cavity exhaust mechanism, the upper insert is further provided with the linear exhaust channel in an inward concave manner, and the linear exhaust channel is positioned at the opening of the U-shaped exhaust channel.
In the plastic tableware injection molding mold with the cavity exhaust mechanism, the translation core pulling mechanism comprises two side core bars which are arranged in parallel and a core bar driving assembly which can drive the two side core bars to synchronously move, and the two side core bars are respectively inserted into the two molding cavities.
In the plastic tableware injection molding die with the die cavity exhaust mechanism, the side core strip is inserted into the molding die cavity from the opening of the U-shaped exhaust channel.
In the plastic tableware injection molding mold with the cavity exhaust mechanism, the core strip driving assembly comprises a core pulling seat connected with the side core strip, the core pulling seat is arranged in a translation sliding groove on the lower mold plate, and a driving piece capable of driving the core pulling seat to move in the direction away from the molding cavity is further arranged on the upper mold plate.
In the plastic tableware injection molding mold with the cavity exhaust mechanism, the driving piece comprises two driving rods which are obliquely fixed on the upper mold plate, the driving rods are obliquely inserted into the core-pulling seat and are in sliding connection with the core-pulling seat, and the upper mold plate is also provided with a driving rod fixing seat with an anti-withdrawal structure.
In the plastic tableware injection molding mold with the cavity exhaust mechanism, the anti-withdrawal structure comprises a stop block which is convexly arranged on the driving rod fixing seat, and the inner end of the stop block is provided with an inclined surface which can prop against the outer end of the core drawing seat.
In the plastic tableware injection molding mold with the cavity exhaust mechanism, the inner end of the core pulling seat is also provided with the limiting clamping seat with the L-shaped section, and the vertical end of the limiting clamping seat is inserted into the side core strip.
Compared with the prior art, the utility model has the advantages that:
1. the exhaust structure of the cavity on the upper insert can increase the exhaust efficiency of gas in the molding cavity during injection molding, so that the injection molding efficiency can be increased, and the translational core-pulling mechanism can realize automatic core pulling during mold opening, so that the demolding efficiency of a product can be improved.
2. When moulding plastics, the gas in the shaping chamber can get into in the U type exhaust passage through a plurality of exhaust grooves, and rethread exhaust groove is with gaseous discharge, simultaneously, the straight line exhaust passage can also assist and carry out the exhaust to can further improve the exhaust velocity.
3. The side core bars are inserted into the forming cavity to form clamping grooves on products, and the upper die plate can drive the two side core bars to move away from the forming cavity through the core bar driving assembly when moving upwards, so that automatic core pulling of the side core bars is realized.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
FIG. 1 is a schematic view of the external structure of the present utility model;
FIG. 2 is a schematic view of the structure of the lower die plate;
FIG. 3 is a schematic view of the structure of the upper die plate;
fig. 4 is a partial structural schematic diagram of the present utility model.
In the figure, an upper die plate 1, a lower die plate 2, an upper insert 3, a lower insert 4, a forming cavity 5, a cavity exhaust structure 6, a translation core pulling mechanism 7, a U-shaped exhaust channel 8, a first exhaust groove 9, a second exhaust groove 10, a linear exhaust channel 11, a side core bar 12, a core pulling seat 13, a driving rod 14, a driving rod fixing seat 15, a stop block 16, an inclined surface 17 and a limiting clamping seat 18.
Detailed Description
As shown in fig. 1-4, a plastic tableware injection molding mold with a cavity exhaust mechanism comprises an upper mold plate 1 and a lower mold plate 2, wherein an upper insert 3 and a lower insert 4 are respectively arranged on the upper mold plate 1 and the lower mold plate 2, two molding cavities 5 are symmetrically arranged between the upper insert 3 and the lower insert 4, a cavity exhaust structure 6 connected with the molding cavities 5 is arranged on the upper insert 3, and a translation core pulling mechanism 7 connected with the two molding cavities 5 is also arranged on the lower mold plate 2.
According to the utility model, the cavity exhaust structure on the upper insert 3 can increase the exhaust efficiency of gas in the molding cavity during injection molding, so that the injection molding efficiency can be increased, and the translational core-pulling mechanism can realize automatic core pulling during mold opening, so that the demolding efficiency of a product can be improved.
Specifically, referring to fig. 3, the cavity exhaust structure 6 includes a U-shaped exhaust channel 8 that is concavely disposed on the upper insert 3, the upper insert 3 is further concavely disposed with a plurality of first exhaust grooves 9 and a plurality of second exhaust grooves 10, two ends of the first exhaust grooves 9 are respectively connected with the forming cavity 5 and the U-shaped exhaust channel 8, inner ends of the second exhaust grooves 10 are connected with the U-shaped exhaust channel 8, and outer ends of the second exhaust grooves horizontally penetrate through the upper insert 3. During injection molding, gas in the molding cavity can enter the U-shaped exhaust channel through a plurality of first exhaust grooves, and then is exhausted through second exhaust grooves.
Specifically, as shown in fig. 3, the opening of the U-shaped exhaust channel 8 faces to the side of the translation core pulling mechanism 7, and a linear exhaust channel 11 is concavely arranged on the upper insert 3, and the linear exhaust channel 11 is positioned at the opening of the U-shaped exhaust channel 8. During injection molding, the linear exhaust passage can also assist in exhaust, so that the exhaust speed can be further increased.
Specifically, referring to fig. 2 to fig. 4, the translating core-pulling mechanism 7 includes two parallel side core rods 12 and a core rod driving assembly capable of driving the two side core rods 12 to move synchronously, the two side core rods 12 are respectively inserted into the two forming cavities 5, and the side core rods 12 are inserted into the forming cavities 5 from the opening of the U-shaped exhaust channel 8.
The side core bars are inserted into the forming cavity to form clamping grooves on products, and the upper die plate can drive the two side core bars to move away from the forming cavity through the core bar driving assembly when moving upwards, so that automatic core pulling of the side core bars is realized.
Specifically, referring to fig. 2-4, the core strip driving assembly includes a core pulling seat 13 connected with the side core strip 12, the core pulling seat 13 is disposed in a translational chute on the lower die plate 2, the upper die plate 1 is further provided with a driving member capable of driving the core pulling seat 13 to move away from the forming cavity 5, the driving member includes two driving rods 14 obliquely fixed on the upper die plate 1, the driving rods 14 are obliquely inserted into the core pulling seat 13 and are slidably connected with the core pulling seat 13, and the upper die plate 1 is further provided with a driving rod fixing seat 15 with an anti-withdrawal structure.
The upper die plate can drive the vertical upward movement of the actuating lever that the slope set up when upwards moving, the actuating lever that the slope set up is vertical upwards to be moved and can be driven the seat of loosing core to keeping away from the shaping die cavity direction and remove, and the actuating lever passes through the actuating lever fixing base to be fixed on the upper die plate, and the structure of preventing returning on the actuating lever fixing base can be spacing to the seat of loosing core to can prevent to lead to the seat of loosing core to return to the position because of the cavity pressure of shaping intracavity is too big.
Specifically, the anti-return structure comprises a stop block 16 convexly arranged on the driving rod fixing seat 15, and an inclined surface 17 capable of propping against the outer end of the core pulling seat 13 is arranged at the inner end of the stop block 16. During injection molding, the inclined surface on the stop block 16 can prop against the outer end of the core drawing seat so as to limit the core drawing seat.
Preferably, as shown in fig. 2 and fig. 4, the inner end of the core pulling seat 13 is further provided with a limiting clamping seat 18 with an L-shaped section, and the vertical end of the limiting clamping seat 18 is inserted into the side core strip 12. The limiting clamping seat can limit the lateral core strip.
The working principle of the utility model is as follows: the cavity exhaust structure on the upper insert 3 can increase the exhaust efficiency of gas in the molding cavity during injection molding, so that the injection molding efficiency can be increased, and the translational core-pulling mechanism can realize automatic core pulling during mold opening, so that the demolding efficiency of a product can be improved;
during injection molding, gas in the molding cavity can enter the U-shaped exhaust channel through a plurality of first exhaust grooves, and then the gas is exhausted through a second exhaust groove, and meanwhile, the linear exhaust channel can assist in exhausting, so that the exhaust speed can be further improved;
the side core strip inserts to the shaping intracavity and can go out the draw-in groove on the product, can drive two side core strips through core strip drive assembly when the cope match-plate pattern upwards moves and move to keeping away from shaping die cavity direction, thereby realize the automatic loose core of die sinking of side core strip, can drive the actuating lever vertical upward movement that the slope set up when the cope match-plate pattern upwards moves, the actuating lever vertical upward movement that the slope set up can drive the seat of loosing core and move to keeping away from shaping die cavity direction, the actuating lever passes through the actuating lever fixing base and fixes on the cope match-plate pattern, the anti-return position structure on the actuating lever fixing base can carry out spacingly to the seat of loosing core, thereby can prevent to lead to the seat of loosing core to return to the position when moulding plastics because of the excessive chamber pressure in the shaping intracavity, inclined plane on the dog 16 can with take out core seat outer end counterbalance and carry out spacingly to the seat of loosing core, spacing cassette can carry out spacingly to side core strip.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Although the upper die plate 1, the lower die plate 2, the upper insert 3, the lower insert 4, the molding cavity 5, the cavity venting structure 6, the translating core-pulling mechanism 7, the U-shaped venting channel 8, the first venting channel 9, the second venting channel 10, the straight venting channel 11, the side core strip 12, the core-pulling seat 13, the driving rod 14, the driving rod fixing seat 15, the stopper 16, the inclined surface 17, the limit clamping seat 18, etc. are used more herein, these terms are used only for more convenience in describing and explaining the essence of the present utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.
Claims (10)
1. The utility model provides a plastics tableware injection moulding mould with die cavity exhaust mechanism, includes cope match-plate pattern (1) and lower bolster (2), its characterized in that cope match-plate pattern (1) and lower bolster (2) on be equipped with respectively and insert (3) and insert (4) down, last insert (3) and insert (4) down between the symmetry be provided with two die cavity (5), last insert (3) on be equipped with die cavity exhaust structure (6) that link to each other with die cavity (5), lower bolster (2) on still be equipped with translation core pulling mechanism (7) that link to each other with two die cavities (5).
2. The plastic tableware injection molding die with the cavity exhaust mechanism according to claim 1, wherein the cavity exhaust structure (6) comprises a U-shaped exhaust channel (8) which is concavely arranged on the upper insert (3), a plurality of first exhaust grooves (9) and a plurality of second exhaust grooves (10) are concavely arranged on the upper insert (3), two ends of the first exhaust grooves (9) are respectively connected with the molding cavity (5) and the U-shaped exhaust channel (8), the inner ends of the second exhaust grooves (10) are connected with the U-shaped exhaust channel (8), and the outer ends of the second exhaust grooves horizontally penetrate through the upper insert (3).
3. Plastic tableware injection mold with cavity venting mechanism according to claim 2, characterized in that the opening of the U-shaped venting channel (8) is directed towards the side of the translating core-pulling mechanism (7).
4. A plastic tableware injection molding mold with a cavity venting mechanism according to claim 3, characterized in that the upper insert (3) is further provided with a linear venting channel (11) in an inward concave manner, and the linear venting channel (11) is positioned at the opening of the U-shaped venting channel (8).
5. A plastic tableware injection molding mold with a cavity venting mechanism according to claim 3, characterized in that the translational core pulling mechanism (7) comprises two parallel side core bars (12) and a core bar driving assembly capable of driving the two side core bars (12) to synchronously move, and the two side core bars (12) are respectively inserted into the two molding cavities (5).
6. Plastic tableware injection mold with cavity venting mechanism according to claim 5, characterized in that the side core strip (12) is inserted into the molding cavity (5) from the opening of the U-shaped venting channel (8).
7. The plastic tableware injection molding mold with the cavity exhaust mechanism according to claim 5, wherein the core strip driving assembly comprises a core pulling seat (13) connected with the side core strip (12), the core pulling seat (13) is arranged in a translation sliding groove on the lower mold plate (2), and a driving piece capable of driving the core pulling seat (13) to move away from the molding cavity (5) is further arranged on the upper mold plate (1).
8. The plastic tableware injection molding mold with the cavity exhaust mechanism according to claim 7, wherein the driving piece comprises two driving rods (14) which are obliquely fixed on the upper mold plate (1), the driving rods (14) are obliquely inserted into the core pulling seat (13) and are in sliding connection with the core pulling seat (13), and the upper mold plate (1) is further provided with a driving rod fixing seat (15) with an anti-withdrawal structure.
9. The plastic tableware injection molding mold with the cavity exhaust mechanism according to claim 8, wherein the anti-withdrawal structure comprises a stop block (16) which is convexly arranged on the driving rod fixing seat (15), and an inclined surface (17) which can be propped against the outer end of the core pulling seat (13) is arranged at the inner end of the stop block (16).
10. The plastic tableware injection molding mold with the cavity exhaust mechanism according to claim 7, wherein the inner end of the core pulling seat (13) is further provided with a limiting clamping seat (18) with an L-shaped section, and the vertical end of the limiting clamping seat (18) is inserted into the side core strip (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321866099.4U CN220429138U (en) | 2023-07-14 | 2023-07-14 | Plastic tableware injection molding die with cavity exhaust mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321866099.4U CN220429138U (en) | 2023-07-14 | 2023-07-14 | Plastic tableware injection molding die with cavity exhaust mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220429138U true CN220429138U (en) | 2024-02-02 |
Family
ID=89688100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321866099.4U Active CN220429138U (en) | 2023-07-14 | 2023-07-14 | Plastic tableware injection molding die with cavity exhaust mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220429138U (en) |
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2023
- 2023-07-14 CN CN202321866099.4U patent/CN220429138U/en active Active
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