CN220808357U

CN220808357U - Bubble-proof plastic mould

Info

Publication number: CN220808357U
Application number: CN202322675771.8U
Authority: CN
Inventors: 董冲冲; 余文凤; 曹潇
Original assignee: Shenzhen Zhuoyu Mould Co ltd
Current assignee: Shenzhen Zhuoyu Mould Co ltd
Priority date: 2023-10-07
Filing date: 2023-10-07
Publication date: 2024-04-19
Anticipated expiration: 2033-10-07

Abstract

The utility model discloses an anti-bubble plastic mold, which comprises a lower mold, wherein an upper mold is arranged above the lower mold, electric telescopic rods are arranged at four corners of the upper end of the lower mold, the output ends of the electric telescopic rods are connected with the upper mold, an anti-bubble cavity is formed in the upper mold, the upper end of the upper mold is provided with an injection port which is communicated with the anti-bubble cavity, the lower end of the anti-bubble cavity is provided with a plurality of communication ports distributed in a rectangular array, the lower side of the inner part of the anti-bubble cavity is provided with two anti-bubble plates, and a plurality of through holes distributed in a rectangular array are formed in the inner part of the anti-bubble plates. The bubble-proof plastic mould can puncture bubbles in liquid plastic through the first puncture needle and the second puncture needle, and can further eliminate bubbles in the liquid plastic through high-frequency vibration of the vibration metal plate, so that the problem that the bubbles influence the quality of products is avoided.

Description

Bubble-proof plastic mould

Technical Field

The utility model relates to the technical field of plastic molds, in particular to an anti-bubble plastic mold.

Background

The plastic mould is a kind of modular mould for compression moulding, extrusion moulding, injection, blow moulding and low foaming moulding, the mould is convex, concave and the coordination of auxiliary moulding system change, can process a series of plastic parts of different shapes, different sizes, and during operation is with liquid plastic through the mouth injection moulding into the intracavity of moulding plastics, forms the injection moulding in the intracavity after a period of time, opens the mould, and the workman can take out the injection moulding.

The chinese patent of current bulletin number CN210282923U discloses a plastic mould, including from the bottom up coincide lower mould, medium plate and the last mould that sets up in proper order, the lower mould is installed in the die holder, and upward the mould is installed in the upper die holder, and the both sides of medium plate are provided with the handle, and the lower mould is located all to be provided with two supporting shoe on the outer wall of its both sides, and the supporting shoe is located the lower mould both sides that are equipped with the handle and is located the both sides of handle respectively, and two supporting shoe that are located on the same one side of lower mould wear to be equipped with the gag lever post along the horizontal direction.

The scheme has the advantages that the middle plate is prevented from being simultaneously taken up in the lifting process by the upper die, the service life of the middle plate is guaranteed, but the function of eliminating bubbles in liquid plastic is lacking when liquid plastic is injected, so that bubbles are easy to generate in products, the situation that part of cavities are not injected although injection openings are full still exists when the liquid plastic is injected, the bubbles are still generated, the quality of the products is affected, and therefore the existing requirements are not met, and the anti-bubble plastic die is provided.

Disclosure of utility model

The utility model aims to provide an anti-bubble plastic mold, which solves the problem that the product quality is affected due to the generation of bubbles when the plastic mold is used for injecting liquid plastic in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the plastic mold comprises a lower mold, an upper mold is arranged above the lower mold, electric telescopic rods are arranged at four corners of the upper end of the lower mold, and the output ends of the electric telescopic rods are connected with the upper mold;

The upper mold is provided with an injection port, the injection port is communicated with the defoaming cavity, a plurality of communication ports distributed in a rectangular array are formed in the lower end of the defoaming cavity, two defoaming plates are arranged on the lower side of the inner part of the defoaming cavity, and a plurality of through holes distributed in a rectangular array are formed in the inner part of the defoaming plates;

The defoaming device comprises a defoaming cavity, a transmission cavity, a defoaming roller and a plurality of rollers, wherein the transmission cavity is arranged on the upper side of one side of the defoaming cavity, the front side and the rear side of the inside of the transmission cavity are respectively provided with a rotating shaft in a rotating mode, one end of each rotating shaft penetrates through and extends to the inside of the defoaming cavity, the rotating shafts are respectively connected with the defoaming cavity in a rotating mode, and the outer walls of one end of each rotating shaft, located in the defoaming cavity, are respectively fixedly provided with the defoaming roller;

The ultrasonic die comprises a lower die and is characterized by further comprising an ultrasonic transducer, wherein the ultrasonic transducer is arranged at the lower end inside the lower die, a vibration metal plate is arranged at the upper end of the ultrasonic transducer, and the vibration metal plate is fixedly connected with the lower die.

Preferably, a motor is arranged on one side of the inside of the transmission cavity, and the output end of the motor is in transmission connection with one of the rotating shafts through a coupler.

Preferably, one end of the rotating shaft, which is positioned in the transmission cavity, is fixedly provided with a transmission gear, and the transmission gears are in meshed connection.

Preferably, an ultrasonic generator is arranged below the ultrasonic transducer, and an output end of the ultrasonic generator is electrically connected with the ultrasonic transducer.

Preferably, a filter screen is arranged at the middle position of the defoaming cavity.

Preferably, the outer wall of the defoaming roller is provided with a plurality of first foam piercing needles distributed in a rectangular array.

Preferably, the upper end of the defoaming plate is provided with a plurality of second foam piercing needles distributed in a rectangular array.

Compared with the prior art, the utility model has the beneficial effects that:

1. According to the utility model, the ultrasonic generator is arranged at the lower end of the inner part of the lower die, and is started when liquid plastic enters the lower die, the vibration metal plate can vibrate at high frequency through the ultrasonic transducer, and the vibration can eliminate bubbles in the liquid plastic, so that the liquid plastic can fully fill the inner cavity, and the problem that the product quality is influenced due to the bubbles is avoided.

2. According to the utility model, the transmission cavity is formed in the upper side of one side of the defoaming cavity, the motor in the transmission cavity is started when liquid plastic is injected, the motor can enable the rotating shaft to drive the two defoaming rollers to synchronously rotate, and the first foam puncturing needle on the outer wall of the defoaming roller can be in contact with the liquid plastic when rotating, so that air bubbles in the liquid plastic can be punctured, the number of the air bubbles can be reduced, the influence on subsequent injection molding is avoided, and the quality of products is ensured.

3. According to the utility model, the filter screen is arranged at the middle position in the defoaming cavity, the two defoaming plates are arranged next time on the filter screen, and the liquid plastic is scratched by the filter screen when passing through the filter screen, so that internal bubbles can be scratched, and meanwhile, the liquid plastic is scratched by the second puncture needle when passing through the through holes of the two defoaming plates, so that the defoaming effect can be further improved, and the function of preventing bubbles is achieved.

Drawings

FIG. 1 is a front elevational view of the overall structure of the present utility model;

FIG. 2 is a front view of the internal structure of the present utility model;

FIG. 3 is a top view of the internal structure of the defoaming chamber of the present utility model;

FIG. 4 is an enlarged view of a portion of the area A of FIG. 2 in accordance with the present utility model;

fig. 5 is a partial enlarged view of the area B of fig. 2 in accordance with the present utility model.

In the figure: 1. a lower die; 2. an upper die; 3. an electric telescopic rod; 4. an injection port; 5. vibrating the metal plate; 6. an ultrasonic transducer; 7. an ultrasonic generator; 8. a communication port; 9. a defoaming cavity; 10. a filter screen; 11. a transmission cavity; 12. a motor; 13. a transmission gear; 14. a rotating shaft; 15. a defoaming roller; 16. a first spike; 17. a defoaming plate; 18. a second spike; 19. and a through hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution: the plastic mold comprises a lower mold 1, wherein an upper mold 2 is arranged above the lower mold 1, electric telescopic rods 3 are arranged at four corners of the upper end of the lower mold 1, and the output ends of the electric telescopic rods 3 are connected with the upper mold 2;

The foam removing device comprises an upper die 2, and is characterized by further comprising a foam removing cavity 9 which is arranged in the upper die 2, wherein an injection opening 4 is arranged at the upper end of the upper die 2, the injection opening 4 is communicated with the foam removing cavity 9, a plurality of communication openings 8 distributed in a rectangular array are arranged at the lower end of the foam removing cavity 9, two foam removing plates 17 are arranged at the lower side of the inner part of the foam removing cavity 9, and a plurality of through holes 19 distributed in a rectangular array are formed in the foam removing plates 17;

The defoaming device further comprises a transmission cavity 11 which is arranged on the upper side of one side of the defoaming cavity 9, wherein the front side and the rear side of the inside of the transmission cavity 11 are respectively provided with a rotating shaft 14 in a rotating mode, one end of each rotating shaft 14 penetrates through and extends to the inside of the defoaming cavity 9, the rotating shafts 14 are respectively connected with the defoaming cavity 9 in a rotating mode, and the outer walls of the rotating shafts 14 positioned at one end of the inside of the defoaming cavity 9 are respectively fixedly provided with a defoaming roller 15;

Still include ultrasonic transducer 6, its lower extreme that sets up in bed die 1 is inside, and ultrasonic transducer 6's upper end is provided with vibrations metal sheet 5, and vibrations metal sheet 5 and bed die 1 fixed connection.

When the anti-foaming device is used, the motor 12 is started when liquid plastic is injected, the motor 12 can enable the defoaming roller 15 to drive the first foam piercing needles 16 to rotate, so that the anti-foaming device can be contacted with and pierce air bubbles in the liquid plastic, the air bubbles in the liquid plastic can be scratched through the filter screen 10, the liquid plastic can be further pierced by the second foam piercing needles 18 when passing through the defoaming plate 17, the number of effective air bubbles is reduced, and the anti-foaming effect is achieved.

Referring to fig. 4, a motor 12 is arranged at one side of the inside of a transmission cavity 11, the output end of the motor 12 is in transmission connection with one of the rotating shafts 14 through a coupling, and the motor 12 provides power for the two defoaming rollers 15 to drive the first foam puncturing needle 16 to rotate;

Referring to fig. 3 and 4, one end of the rotating shaft 14 located inside the transmission cavity 11 is fixedly provided with transmission gears 13, the transmission gears 13 are in meshed connection, and the meshed connection of the transmission gears 13 realizes synchronous rotation of the two defoaming rollers 15;

Referring to fig. 1 and 2, an ultrasonic generator 7 is disposed below the ultrasonic transducer 6, and an output end of the ultrasonic generator 7 is electrically connected with the ultrasonic transducer 6, and the ultrasonic generator 7 and the ultrasonic transducer 6 cooperate to enable the vibration metal plate 5 to vibrate at high frequency to eliminate bubbles in the liquid plastic;

Referring to fig. 2, a filter screen 10 is disposed in the middle of the defoaming chamber 9, and the filter screen 10 can scratch the liquid plastic, so as to scratch bubbles in the liquid plastic;

Referring to fig. 5, the outer walls of the defoaming rollers 15 are provided with a plurality of first puncturing needles 16 distributed in a rectangular array, and the defoaming rollers 15 rotate to drive the first puncturing needles 16 to puncture bubbles in the liquid plastic, so that the number of bubbles is reduced;

referring to fig. 3 and 4, the upper end of the defoaming plate 17 is provided with a plurality of second foam piercing needles 18 distributed in a rectangular array, and the air bubbles in the liquid plastic converging through holes 19 are pierced by the second foam piercing needles 18, so that the number of air bubbles is reduced.

Working principle: when in use, the electric telescopic rod 3 is started to enable the upper die 2 and the lower die 1 to be closed, liquid plastic can be added through the injection opening 4, the liquid plastic can enter the defoaming cavity 9 of the upper die 2, the motor 12 is started, one of the rotating shafts 14 can be rotated under the transmission of the coupler, the rotating shaft 14 can drive one of the transmission gears 13 to rotate, the other transmission gear 13 can be driven to rotate the other transmission gear 13 due to the meshing transmission between the two transmission gears 13, the synchronous rotation of the two rotating shafts 14 is realized, the rotation of the rotating shafts 14 can drive the synchronous rotation of the defoaming roller 15, the defoaming roller 15 can drive a plurality of first foam piercing needles 16 to rotate, the rotation of the first foam piercing needles 16 can be contacted with air bubbles in the liquid plastic and pierce the foam, so that the quantity of the air bubbles is reduced, the liquid plastic can be filtered by the filter screen 10 after passing through the defoaming roller 15, the filter screen 10 can scratch out liquid plastic so as to scratch out bubbles, then the liquid plastic can fall on the upper end of the defoaming plate 17, the liquid plastic can enter the lower end of the interior of the defoaming cavity 9 through the through hole 19, and the bubbles in the liquid plastic can be further punctured by the second puncturing needle 18 when the liquid plastic gathers at the through hole 19, so that the subsequent injection molding is prevented from being influenced, the quality of products is ensured, the liquid plastic can enter the inner cavity of the lower die 1 through the communication port 8, an alternating voltage signal with certain frequency and voltage can be generated by starting the ultrasonic generator 7, the vibration metal plate 5 can be driven to vibrate at high frequency through the ultrasonic transducer 6, so that the liquid plastic can vibrate, the bubbles in the liquid plastic can be eliminated, the inner cavity can be fully filled with the liquid plastic, the problem that the bubbles influence on the quality of the products is avoided, plays a role in preventing bubbles.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a plastic mould of bubble prevention, includes bed die (1), the top of bed die (1) is provided with mould (2), electric telescopic handle (3) are all installed in the four corners department of bed die (1) upper end, and the output of electric telescopic handle (3) all is connected with last mould (2), its characterized in that:

The anti-foam device comprises an upper die (2), and is characterized by further comprising an anti-foam cavity (9), wherein the anti-foam cavity is formed in the upper die (2), an injection opening (4) is formed in the upper end of the upper die (2), the injection opening (4) is communicated with the anti-foam cavity (9), a plurality of communication openings (8) distributed in a rectangular array are formed in the lower end of the anti-foam cavity (9), two anti-foam plates (17) are arranged on the lower side of the inner portion of the anti-foam cavity (9), and a plurality of through holes (19) distributed in a rectangular array are formed in the anti-foam plates (17);

The defoaming device comprises a defoaming cavity (9), and is characterized by further comprising a transmission cavity (11) which is arranged on the upper side of one side of the defoaming cavity (9), wherein a rotating shaft (14) is rotatably arranged on the front side and the rear side of the inside of the transmission cavity (11), one end of the rotating shaft (14) penetrates through and extends to the inside of the defoaming cavity (9), the rotating shaft (14) is rotatably connected with the defoaming cavity (9), and a defoaming roller (15) is fixedly arranged on the outer wall of one end of the rotating shaft (14) positioned in the defoaming cavity (9);

The ultrasonic die further comprises an ultrasonic transducer (6), wherein the ultrasonic transducer is arranged at the lower end inside the lower die (1), a vibration metal plate (5) is arranged at the upper end of the ultrasonic transducer (6), and the vibration metal plate (5) is fixedly connected with the lower die (1).

2. The bubble-resistant plastic mold of claim 1, wherein: one side in the transmission cavity (11) is provided with a motor (12), and the output end of the motor (12) is in transmission connection with one of the rotating shafts (14) through a coupler.

3. The bubble-resistant plastic mold of claim 1, wherein: one end of the rotating shaft (14) positioned in the transmission cavity (11) is fixedly provided with a transmission gear (13), and the transmission gears (13) are connected in a meshed mode.

4. The bubble-resistant plastic mold of claim 1, wherein: an ultrasonic generator (7) is arranged below the ultrasonic transducer (6), and the output end of the ultrasonic generator (7) is electrically connected with the ultrasonic transducer (6).

5. The bubble-resistant plastic mold of claim 1, wherein: a filter screen (10) is arranged at the middle position of the defoaming cavity (9).

6. The bubble-resistant plastic mold of claim 1, wherein: the outer wall of the defoaming roller (15) is provided with a plurality of first foam piercing needles (16) distributed in a rectangular array.

7. The bubble-resistant plastic mold of claim 1, wherein: the upper ends of the defoaming plates (17) are provided with a plurality of second foam piercing needles (18) distributed in a rectangular array.