CN209955182U

CN209955182U - Thick wall lens injection mold that multistation layering was moulded plastics

Info

Publication number: CN209955182U
Application number: CN201920443443.6U
Authority: CN
Inventors: 许俊豪; 罗俊; 陈海明
Original assignee: Changzhou Xingyu Automotive Lighting Systems Co Ltd
Current assignee: Changzhou Xingyu Automotive Lighting Systems Co Ltd
Priority date: 2019-04-03
Filing date: 2019-04-03
Publication date: 2020-01-17
Anticipated expiration: 2029-04-03

Abstract

The utility model relates to the technical field of thick-wall product layered wrapping injection molding, in particular to a thick-wall lens injection mold for multi-station layered injection molding, which comprises six stations, there is middle revolving plate between cover half and movable mould, rotatory middle revolving plate drives the product primary mold of first station formation of moulding plastics to subsequent second to sixth station, until the product drawing of patterns, the cover half includes I chamber of cover half, II chambers of cover half and III chambers of cover half and two cooling device that blow, the movable mould includes I chamber of movable mould, III chambers of movable mould and three cooling device that blows, middle revolving plate includes six middle chambers, I chamber of cover half, the one shot forming die cavity of product is constituteed in middle chamber and I chamber of movable mould, II chambers of cover half, the secondary forming die cavity is constituteed to II chambers of movable mould and middle chamber, III chambers of cover half, III chambers of movable mould and middle chamber are constituteed the cubic forming die cavity, the utility model discloses can solve the problem that the layering of thick-walled spare product among the prior art is moulded plastics inefficiency.

Description

Thick wall lens injection mold that multistation layering was moulded plastics

Technical Field

The utility model relates to a thick wall product layering parcel technical field that moulds plastics, concrete field is a thick wall lens injection mold that multistation layering was moulded plastics.

Background

Plastic transparent thick-wall parts are increasingly frequently applied in the modern automobile lamp industry. The method is a technical scheme for forming the transparent thick-wall part by layering injection molding in order to reduce the forming period of the product, and the more layering, the shorter the forming period, the higher the production efficiency, and the more multi-layer division of the product is a technical difficulty.

In the prior art, the following measures are mainly taken for layered injection molding:

according to the first scheme, a product is divided into two parts, a double-color injection molding machine is adopted for two-station injection molding production, and after injection molding, a layer of mold moving mold rotates 180 degrees to inject the next layer. The scheme can only divide the product into two layers, the production efficiency is slightly improved compared with that of one-time injection molding, but the overall production efficiency is still very low;

and in the second scheme, the first product is divided into three, a three-color three-station injection molding machine is adopted to firstly perform injection molding on one layer, and then the next layer is respectively subjected to injection molding by rotating 120 degrees and 240 degrees. The scheme divides the product into three layers, and the cooling efficiency is very low after the injection molding of the two layers is finished, so that the production efficiency of the product is influenced;

and the scheme is that the moving die or the fixed die is rotated by the aid of the die with the servo motor, so that a product is replaced by a cavity, the die is quite complicated, and various electric appliances need to be integrated in the die.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a thick wall lens injection mold that multistation layering was moulded plastics to the problem of the layering inefficiency of thick wall spare product is moulded plastics among the solution prior art.

In order to achieve the above object, the utility model provides a following technical scheme: a multi-station layered injection molding thick-wall lens injection mold comprises a first station for performing primary injection molding, a third station for performing secondary injection molding, a fifth station for performing tertiary injection molding, a second station and a fourth station for cooling and a sixth station for demolding, wherein an intermediate rotating plate is arranged between a fixed mold and a movable mold of the injection mold, and is rotated to drive a product formed by injection molding of the first station to be molded for one time to be molded to the subsequent second station to the sixth station until the product is demolded; the fixed die comprises a fixed die I cavity, a fixed die II cavity and a fixed die III cavity, wherein product copying air blowing cooling devices are arranged between the fixed die I cavity and the fixed die II cavity and between the fixed die II cavity and the fixed die III cavity, the fixed die I cavity, the fixed die II cavity and the fixed die III cavity respectively correspond to a first station, a third station and a fifth station, the two air blowing cooling devices respectively correspond to a second station and a fourth station, and a demoulding port corresponding to a sixth station is further arranged on the fixed die; the movable mould comprises a movable mould I cavity, a movable mould II cavity and a movable mould III cavity, wherein product profiling air blowing cooling devices are arranged between the movable mould I cavity and the movable mould II cavity, between the movable mould II cavity and the movable mould III cavity, and between the movable mould III cavity and the movable mould I cavity, the movable mould II cavity and the movable mould III cavity respectively correspond to a first station, a third station and a fifth station, and the three air blowing cooling devices respectively correspond to a second station, a fourth station and a sixth station; the middle rotating plate comprises six middle cavities with the same structure and corresponding to the upper cavities of the fixed die and the movable die, and the middle cavities respectively correspond to the first station to the sixth station; the I chamber of cover half, intermediate chamber and I chamber of movable mould constitute the one shot forming die cavity of product, and the intermediate chamber that carries the product primary mould that once forms after moulding plastics cools off the back and rotates to between II chambeies of cover half and the II chambeies of movable mould, and the compound die constitutes the parcel at product primary mould both sides post forming die cavity, and the intermediate chamber that carries the product quadratic mould that forms after the secondary moulds plastics cools off the back and rotates to between III chambeies of cover half and the III chambeies of movable mould, and the compound die constitutes the parcel at product quadratic mould both sides cubic forming die cavity.

Preferably, the injection mold is provided with a first nozzle opening and a second nozzle opening, the first nozzle opening and the second nozzle opening are arranged in parallel, and the distance between the two nozzle openings is 550 mm.

Preferably, be equipped with two independent nozzle holes in I chamber of cover half, one of them nozzle hole and first nozzle mouth intercommunication, another nozzle hole and second nozzle mouth intercommunication, II chambers of cover half and III chambers of cover half are equipped with two independent nozzle holes equally, and its connected mode and structure are in full accord with nozzle hole on I chamber of cover half.

Preferably, the center of the middle rotating plate is provided with a conical boss, the conical boss is fit with the central hole of the movable mold, and a rotating shaft of the injection molding machine penetrates through the central hole of the movable mold and then is fixedly connected with the middle rotating plate.

Preferably, the rotating shaft of the injection molding machine is telescopic.

Preferably, the middle rotating plate is provided with 6 positioning guide sleeves, the 6 positioning guide sleeves are uniformly distributed among the 6 middle cavities, the middle rotating plate is provided with a waterway interface, four groups of waterways are arranged inside the middle rotating plate, and the four groups of waterways are respectively communicated with the waterway interface.

Preferably, the cavity of the fixed die I, the cavity of the fixed die II and the cavity of the fixed die III are respectively connected with die warm water, and the outsides of the cavity of the fixed die I, the cavity of the fixed die II and the cavity of the fixed die III are respectively wrapped with a heat insulation plate.

Preferably, the cavity I of the movable mold, the cavity II of the movable mold and the cavity III of the movable mold are respectively connected with mold warm water, and the outer sides of the cavity I of the movable mold, the cavity II of the movable mold and the cavity III of the movable mold are respectively wrapped with heat insulation plates.

Preferably, still be equipped with unilateral ejection mechanism on the movable mould, the thimble board among the ejection mechanism is located the inside of movable mould frame, and the inside of movable mould frame is kept away the sky according to the thimble board size, is equipped with a plurality of unilateral ejection holes on the movable mould bottom plate, and ejection hole diameter is 40mm, and the ejection hole is the square distribution.

Compared with the prior art, the beneficial effects of the utility model are that: the middle rotating plate is connected with a rotating shaft of the injection molding machine, and the rotating shaft drives the middle rotating plate to rotate, so that the function of replacing a movable and fixed mold cavity of a product in a mold is realized, external auxiliary equipment is avoided, various electric appliances are not required to be integrated, and the mold structure is simplified through control; this application has 6 stations, after moulding plastics each time, the product that middle commentaries on classics board drive had moulded plastics is rotatory to cooling the station and is cooled off, and rotatory middle commentaries on classics board just can carry out next time and mould plastics after the cooling, has improved the layering of thick walled spare product greatly and has moulded plastics efficiency.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of another view angle of the present invention;

FIG. 3 is an exploded view of the present invention;

FIG. 4 is a schematic structural view of a middle rotating plate of the present invention;

fig. 5 is a schematic structural view of another view angle of the middle rotating plate according to the present invention;

FIG. 6 is a schematic structural view of the fixed mold of the present invention;

fig. 7 is a schematic structural view of the middle moving die of the present invention;

FIG. 8 is a schematic structural view of the bottom plate of the middle moving die of the present invention;

fig. 9 is a schematic structural view of the movable mold frame of the present invention.

In the figure: the device comprises a fixed die 1, a first nozzle opening 11, a fixed die I cavity 12, a fixed die II cavity 13, a fixed die III cavity 14, a blowing cooling device 15, a nozzle hole 16, a demoulding opening 17, a second nozzle opening 18, a middle rotating plate 2, a middle cavity 21, a positioning guide sleeve 22, a waterway interface 23, a movable die 3, a movable die I cavity 31, a movable die II cavity 32, a movable die III cavity 33, an ejector plate 34, an ejector hole 35, a movable die bottom plate 36 and a rotating shaft 4.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-9, the present invention provides a technical solution: a multi-station layered injection molding thick-wall lens injection mold comprises a first station for performing primary injection molding, a third station for performing secondary injection molding, a fifth station for performing tertiary injection molding, a second station and a fourth station for cooling and a sixth station for demolding, wherein an intermediate rotating plate 2 is arranged between a fixed mold 1 and a movable mold 3 of the injection mold, and the intermediate rotating plate 2 is rotated to drive a product formed by the first station through injection molding to be molded for one time to be molded to the subsequent second station to the sixth station until the product is demolded; the fixed die 1 comprises a fixed die I cavity 12, a fixed die II cavity 13 and a fixed die III cavity 14, wherein product copying air blowing cooling devices 15 are arranged between the fixed die I cavity 12 and the fixed die II cavity 13 and between the fixed die II cavity 13 and the fixed die III cavity 14, the fixed die I cavity 12, the fixed die II cavity 13 and the fixed die III cavity 14 respectively correspond to a first station, a third station and a fifth station, the two air blowing cooling devices 15 respectively correspond to a second station and a fourth station, and a demoulding port 17 corresponding to a sixth station is further arranged on the fixed die 1; the movable mould 3 comprises a first cavity 31 of the movable mould, a second cavity 32 of the movable mould and a third cavity 33 of the movable mould, wherein air-blowing cooling devices 15 for product profiling are arranged between the first cavity 31 of the movable mould and the second cavity 32 of the movable mould, between the second cavity 32 of the movable mould and the third cavity 33 of the movable mould, and between the third cavity 33 of the movable mould and the first cavity 31 of the movable mould, the second cavity 32 of the movable mould and the third cavity 33 of the movable mould correspond to a first station, a third station and a fifth station respectively, and the three air-blowing cooling; the middle rotating plate 2 comprises six middle cavities 21 which have the same structure and correspond to the upper cavities of the fixed die 1 and the movable die 3 and respectively correspond to the first station to the sixth station; the fixed die I cavity 12, the middle cavity 21 and the movable die I cavity 31 form a primary molding cavity of a product, the middle cavity 21 which is formed after primary injection and is loaded with the primary product rotates to a position between the fixed die II cavity 13 and the movable die II cavity 32 after being cooled, die assembly is carried out to form secondary molding cavities wrapped on two sides of the primary product, the middle cavity 21 which is formed after secondary injection and is loaded with the secondary product rotates to a position between the fixed die III cavity 14 and the movable die III cavity 33 after being cooled, die assembly is carried out to form tertiary molding cavities wrapped on two sides of the secondary product, specifically, primary injection molding is carried out at a first station to obtain the primary product, in the embodiment, the primary product is a product core, after the primary injection is finished, the die is opened, the primary product is separated from the movable die I cavity 31 and is connected to the middle rotating plate 2, the primary product rotates to a second station along with the middle rotating plate 2 to, it is rotatory to the third station to cool off the back, carry out the secondary and mould plastics, in this embodiment, two faces wrap up about the product core is moulded plastics to the secondary, obtain the product quadratic form, the die sinking, the product quadratic form breaks away from out from II chambeies of movable mould 32 and then middle revolving plate 2 is rotatory to the fourth station cooling, it moulds plastics to rotate to the fifth station three times after the cooling, the tertiary is moulded plastics and is carried out further parcel to the product quadratic form, the five layers of parcel of thick wall lens is realized to the tertiary mould plastics, the product that obtains after the tertiary is moulded plastics is the final piece of product, the final piece of product is followed middle revolving plate 2 and is changeed to the sixth station, carry out the. The application provides an injection mold has the cooling station, after moulding plastics each time, the product that middle commentaries on classics board 2 drove and has moulded plastics is rotatory to cooling station and is cooled off, and rotatory middle commentaries on classics board 2 just can carry out the next time of moulding plastics after the cooling, has improved the layering injection molding efficiency of thick walled spare product greatly, and this application has realized the change that the mould cavity has all been realized to product multistation operation and each station production product in one set of mould simultaneously.

Further, the injection mold is provided with a first nozzle opening 11 and a second nozzle opening 18, the first nozzle opening 11 and the second nozzle opening 18 are arranged in parallel, the distance between the two nozzle openings is 550mm, and the two nozzle openings are respectively communicated with the hot runner system. In addition, two independent nozzle holes 16 are formed in the fixed die cavity I12, one nozzle hole 16 is communicated with the first nozzle opening 11, the other nozzle hole 16 is communicated with the second nozzle opening 18, two independent nozzle holes 16 are also formed in the fixed die cavity II 13 and the fixed die cavity III 14, and the connecting mode and the structure of the two independent nozzle holes are completely consistent with those of the nozzle holes 16 in the fixed die cavity I12.

Specifically, the center of middle commentaries on classics board 2 is equipped with conical boss, and conical boss agrees with the centre bore of movable mould 3, and the pivot 4 of injection molding machine passes behind the centre bore of movable mould 3 with middle commentaries on classics board 2 fixed connection, and wherein the pivot 4 telescopic of injection molding machine, after moulding plastics at every turn, telescopic pivot 4 stretches out and makes middle commentaries on classics board 2 stretch out, just so can make the product after moulding plastics break away from in the movable mould 3 chamber.

Further, middle rotor plate 2 carries out the sixth partition, the middle chamber 21 of each station all need with the movable mould 3, cover half 1 cooperation, so the structure of middle chamber 21 is accomplished the same, be equipped with 6 location guide pin bushing 22 on the middle rotor plate 2 and be used for cooperation rotational positioning, 6 location guide pin bushing 22 equipartitions are between 6 middle chambers 21, middle rotor plate 2 is equipped with water route interface 23, middle rotor plate 2 is inside to be equipped with four groups of water routes, four groups of water routes communicate with water route interface 23 respectively, the setting in water route is for carrying out the control by temperature change to rotor plate inside, prevent that the temperature is too high.

Preferably, the cavity 12 of the fixed die I, the cavity 13 of the fixed die II and the cavity 14 of the fixed die III are respectively connected with die warm water, and the outsides of the cavity 12 of the fixed die I, the cavity 13 of the fixed die II and the cavity 14 of the fixed die III are respectively wrapped with a heat insulation plate.

Preferably, the cavity 31 of the movable mold I, the cavity 32 of the movable mold II and the cavity 33 of the movable mold III are respectively connected with warm water, and the outsides of the cavity 31 of the movable mold I, the cavity 32 of the movable mold II and the cavity 33 of the movable mold III are respectively wrapped with heat insulation plates.

Further, the movable die 3 is further provided with a unilateral ejection mechanism, an ejector plate 34 in the ejection mechanism is located inside the movable die frame, the inside of the movable die frame is kept away according to the size of the ejector plate 34, a plurality of unilateral ejection holes 35 are formed in a movable die bottom plate 36, the diameter of each ejection hole 35 is 40mm, the ejection holes 35 are distributed in a square shape, a sixth station is a demolding station, when the intermediate rotating plate 2 drives a final product to rotate to the sixth station, the ejection mechanism can eject the product out, and demolding is performed from a demolding opening 17 in the fixed die 1.

The working principle is as follows: on the first station, mould plastics for the first time, change board 2 in the middle of the rotation, change board 2 in the middle of the drive product and rotate to the cooling of second station type, the product type after the cooling is rotatory to the third station on the second station and is carried out the secondary and moulds plastics, wrap up the product type, then it cools off to rotate to the fourth station, it moulds plastics to carry out the cubic to the fifth station after the cooling, it demolds to rotate to the sixth station at last, when the product type leaves first station, the first station can carry out the moulding plastics of next product.

The middle rotating plate 2 can drive a product to rotate, so that the function of replacing the cavity of the movable and fixed die 1 in the die is realized, external auxiliary equipment is avoided, various electric appliances are not required to be integrated, and the die structure is simplified through control; this application has 6 stations, after moulding plastics each time, middle commentaries on classics board 2 drives the product rotation that has moulded plastics and cools off to the cooling station, and rotatory middle commentaries on classics board 2 just can carry out next time of moulding plastics after the cooling, has improved the layering of thick walled spare product greatly and has moulded plastics efficiency.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a thick wall lens injection mold that multistation layering was moulded plastics which characterized in that: the injection molding machine comprises a first station for executing one-time injection molding, a third station for executing two-time injection molding, a fifth station for executing three-time injection molding, a second station and a fourth station for cooling and a sixth station for demolding, wherein an intermediate rotating plate (2) is arranged between a fixed die (1) and a movable die (3) of an injection mold, and the intermediate rotating plate (2) is rotated to drive a product formed by the first station through injection molding to be molded to the subsequent second station to sixth station for one time until the product is demolded; the fixed die (1) comprises a fixed die I cavity (12), a fixed die II cavity (13) and a fixed die III cavity (14), wherein product profiling air blowing cooling devices (15) are arranged between the fixed die I cavity (12) and the fixed die II cavity (13) and between the fixed die II cavity (13) and the fixed die III cavity (14), the fixed die I cavity (12), the fixed die II cavity (13) and the fixed die III cavity (14) respectively correspond to a first station, a third station and a fifth station, the two air blowing cooling devices (15) respectively correspond to a second station and a fourth station, and a demoulding port (17) corresponding to a sixth station is further arranged on the fixed die (1); the movable mould (3) comprises a first cavity (31) of the movable mould, a second cavity (32) of the movable mould and a third cavity (33) of the movable mould, wherein air-blowing cooling devices (15) for product profiling are arranged between the first cavity (31) of the movable mould and the second cavity (32) of the movable mould, between the second cavity (32) of the movable mould and the third cavity (33) of the movable mould and between the third cavity (33) of the movable mould and the first cavity (31) of the movable mould, the second cavity (32) of the movable mould and the third cavity (33) of the movable mould respectively correspond to a first station, a third station and a fifth station, and the three air-blowing cooling devices; the middle rotating plate (2) comprises six middle cavities (21) which have the same structure and correspond to the upper cavities of the fixed die (1) and the movable die (3) and respectively correspond to the first station to the sixth station; the mould I cavity of cover half (12), intermediate chamber (21) and I cavity of movable mould (31) constitute the one shot forming die cavity of product, the intermediate chamber (21) cooling back that carries the product primary mould that once moulds plastics back formation is rotatory to between II cavities of cover half (13) and II cavities of movable mould (32), the compound die constitutes the parcel at the product primary mould both sides post forming die cavity, the intermediate chamber (21) cooling back that carries the product secondary mould that forms after the secondary moulds plastics rotates to between III cavities of cover half (14) and the III cavities of movable mould (33), the compound die constitutes the parcel at the product secondary mould both sides tertiary forming die cavity.

2. The multi-station layered injection molding thick-walled lens injection mold according to claim 1, wherein: the injection mold is provided with a first nozzle opening (11) and a second nozzle opening (18), wherein the first nozzle opening (11) and the second nozzle opening (18) are arranged in parallel, and the distance between the two nozzle openings is 550 mm.

3. The multi-station layered injection molding thick-walled lens injection mold according to claim 2, wherein: be equipped with two independent nozzle holes (16) on I chamber of cover half (12), one of them nozzle hole (16) and first nozzle mouth (11) intercommunication, another nozzle hole (16) and second nozzle mouth (18) intercommunication, II chambers of cover half (13) and III chambers of cover half (14) are equipped with two independent nozzle holes (16) equally, and its connected mode and structure are identical with nozzle hole (16) on I chamber of cover half (12).

4. The multi-station layered injection molding thick-walled lens injection mold according to claim 1, wherein: the center of the middle rotating plate (2) is provided with a conical boss which is matched with the central hole of the movable mold (3), and a rotating shaft (4) of the injection molding machine penetrates through the central hole of the movable mold (3) and then is fixedly connected with the middle rotating plate (2).

5. The multi-station layered injection molding thick-walled lens injection mold according to claim 4, wherein: the rotating shaft (4) of the injection molding machine can stretch.

6. The multi-station layered injection molding thick-walled lens injection mold according to claim 5, wherein: the improved water-saving rotary plate is characterized in that 6 positioning guide sleeves (22) are arranged on the middle rotary plate (2), the 6 positioning guide sleeves (22) are uniformly distributed among 6 middle cavities (21), a water channel connector (23) is arranged on the middle rotary plate (2), four groups of water channels are arranged in the middle rotary plate (2), and the four groups of water channels are respectively communicated with the water channel connectors (23).

7. The multi-station layered injection molding thick-walled lens injection mold according to claim 1, wherein: the die warm water is respectively introduced into the cavity (12) of the fixed die I, the cavity (13) of the fixed die II and the cavity (14) of the fixed die III, and the outsides of the cavity (12) of the fixed die I, the cavity (13) of the fixed die II and the cavity (14) of the fixed die III are respectively wrapped with a heat insulation plate.

8. The multi-station layered injection molding thick-walled lens injection mold according to claim 1, wherein: the first cavity (31) of the movable mold, the second cavity (32) of the movable mold and the third cavity (33) of the movable mold are respectively connected with mold warm water, and the outsides of the first cavity (31) of the movable mold, the second cavity (32) of the movable mold and the third cavity (33) of the movable mold are respectively wrapped with a heat insulation plate.

9. The multi-station layered injection molding thick-walled lens injection mold according to claim 1, wherein: still be equipped with unilateral ejection mechanism on movable mould (3), thimble board (34) among the ejection mechanism are located the inside of movable mould frame, and the inside of movable mould frame is kept away the space according to the size of thimble board (34), is equipped with a plurality of unilateral ejector holes (35) on movable mould bottom plate (36), and ejector hole (35) diameter is 40mm, and ejector hole (35) are the square distribution.