CN114228106A - Injection blow molding device and molding method - Google Patents
Injection blow molding device and molding method Download PDFInfo
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- CN114228106A CN114228106A CN202111441157.4A CN202111441157A CN114228106A CN 114228106 A CN114228106 A CN 114228106A CN 202111441157 A CN202111441157 A CN 202111441157A CN 114228106 A CN114228106 A CN 114228106A
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- 238000010102 injection blow moulding Methods 0.000 title claims abstract description 29
- 238000000465 moulding Methods 0.000 title claims description 6
- 238000000034 method Methods 0.000 title abstract description 11
- 238000000071 blow moulding Methods 0.000 claims abstract description 93
- 238000001746 injection moulding Methods 0.000 claims abstract description 84
- 238000002347 injection Methods 0.000 claims abstract description 30
- 239000007924 injection Substances 0.000 claims abstract description 30
- 230000007306 turnover Effects 0.000 claims abstract description 6
- 238000007664 blowing Methods 0.000 claims description 31
- 239000004033 plastic Substances 0.000 claims description 9
- 229920003023 plastic Polymers 0.000 claims description 9
- 241000446313 Lamella Species 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 7
- 238000012546 transfer Methods 0.000 abstract description 4
- 239000010720 hydraulic oil Substances 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 10
- 210000001161 mammalian embryo Anatomy 0.000 description 7
- 238000013459 approach Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06—Injection blow-moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/28—Blow-moulding apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C2049/023—Combined blow-moulding and manufacture of the preform or the parison using inherent heat of the preform, i.e. 1 step blow moulding
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
The invention relates to an injection blow molding device, which comprises a frame and a mold core; the mold core is rotationally connected with the frame; an injection molding device and a blow molding device are respectively arranged on two sides of the mold core; the rack is provided with a first distance adjusting device, a second distance adjusting device and a turnover device; the first distance adjusting device is used for adjusting the distance between the core and the injection molding device so as to enable the core and the injection molding device to be matched or separated; the injection molding device is used for injecting high-temperature melt after the mold core and the injection molding device are matched to form an injection blank on the mold core; the overturning device is used for overturning the core so as to enable the core to correspond to the blow molding device; the second distance adjusting device is used for adjusting the distance between the core and the blow molding device so as to enable the core and the blow molding device to be matched or separated; the blow molding apparatus is used to introduce high pressure gas into the preforms on the cores to form blow molded articles. The injection molding station and the blow molding station are integrated, the injection blank is always coated on the mold core in the transfer process, and the injection molding process and the blow molding process can be completed at one time. The invention also relates to an injection blow molding method.
Description
Technical Field
The invention relates to the technical field of plastic molds, in particular to an injection blow molding device and a molding method.
Background
With the development of plastic processing technology, the demand of hollow products is increasing, and the hollow products are widely applied to a plurality of fields such as food, medicine, cosmetics and the like. The existing hollow forming method mainly comprises injection blow forming and extrusion blow forming.
In the conventional injection blow molding technology, a bottle preform is usually processed through an injection mold, and after the bottle preform is cooled and shaped, the bottle preform is taken down and then placed into a blow mold, and compressed air is introduced to blow and mold the bottle preform after heating.
The injection blow molding devices of the prior art generally have the following technical problems:
the injection molding station and the blow molding station are respectively arranged, the bottle blank processed in the injection mold needs to be taken out and transferred into the blow molding mold, and the bottle blank needs to be reheated after being transferred, so that the production period is prolonged, the process is complicated, and the automatic processing is difficult to realize.
Disclosure of Invention
Aiming at the technical problems in the prior art, one of the purposes of the invention is as follows: the injection blow molding device integrates injection molding and blow molding, and the injected blank is transferred to the blow molding station without reheating, so that the production efficiency is improved, and the automatic processing is favorably realized.
Aiming at the technical problems in the prior art, the second purpose of the invention is as follows: an injection blow molding method is provided.
In order to achieve the purpose, the invention adopts the following technical scheme:
an injection blow molding device comprises a frame and a mold core;
the mold core is rotationally connected with the frame;
an injection molding device and a blow molding device are respectively arranged on two sides of the mold core;
the rack is provided with a first distance adjusting device, a second distance adjusting device and a turnover device;
the first distance adjusting device is used for adjusting the distance between the core and the injection molding device so as to enable the core and the injection molding device to be matched or separated;
the injection molding device is used for injecting high-temperature melt after the mold core and the injection molding device are matched to form an injection blank on the mold core;
the overturning device is connected with the core and is used for overturning the core so as to enable the core to correspond to the blow molding device;
the second distance adjusting device is used for adjusting the distance between the core and the blow molding device so as to enable the core and the blow molding device to be matched or separated;
the blow molding apparatus is used to introduce high pressure gas into the preforms on the cores to form blow molded articles.
Further, the frame is connected with a middle plate die carrier in a sliding mode, the turnover device is fixedly connected with the middle plate die carrier, the core is rotatably connected with the middle plate die carrier, and the first distance adjusting device is fixedly connected with the frame and connected with the middle plate die carrier and used for driving the middle plate die carrier to move towards the injection molding device.
Further, turning device includes servo motor, first bevel gear and second bevel gear, and servo motor rigid coupling is in intermediate lamella die carrier and connect in first bevel gear for drive first bevel gear rotates, and second bevel gear rotates to be connected in intermediate lamella die carrier and rigid coupling in core, first bevel gear and second bevel gear meshing transmission.
Furthermore, the intermediate plate die carrier is provided with a travel switch, the travel switch is arranged on one side of the second bevel gear, the second bevel gear is provided with a contact, and the contact is arranged corresponding to the travel switch.
Further, the blow molding device comprises a first blow molding die and a second blow molding die, the first blow molding die and the second blow molding die are respectively positioned on two sides of the core, and the second distance adjusting device is connected to the first blow molding die and the second blow molding die and used for driving the first blow molding die and the second blow molding die to close the die oppositely or open the die oppositely.
Furthermore, the frame rigid coupling has the blowing mould bedplate, and first blowing mould and second blowing mould sliding connection are in the blowing mould bedplate respectively, and the blowing mould bedplate is equipped with guider, and guider's extending direction is parallel with the displacement direction of first blowing mould and second blowing mould.
Further, guider is the slide rail on the blowing mould bedplate, and first blowing mould and second blowing mould all are equipped with slide rail assorted guide block, guide block sliding connection in slide rail.
Further, the slide rail and the guide block are both of T-shaped structures.
Further, a guide pillar is arranged on one side of the mold core, and the injection molding device and the blow molding device are both provided with guide sleeves matched with the guide pillar.
An injection blow molding method comprises the following steps,
the first distance adjusting device adjusts the distance between the mold core and the injection molding device, so that the mold core and the injection molding device are matched;
the injection molding device injects high-temperature melt after the mold core and the injection molding device are assembled, and forms an injection blank on the mold core;
the first distance adjusting device adjusts the distance between the mold core and the injection molding device, so that the mold core and the injection molding device are matched;
the overturning device overturns the mold core, and the mold core corresponds to the blow molding device after positioning;
the second distance adjusting device adjusts the distance between the mold core and the blow molding device, so that the mold core and the blow molding device are matched;
the blow molding device inputs high-pressure gas to the injection blank on the core to form a blow molded product.
In summary, the present invention has the following advantages:
the injection molding station and the blow molding station are integrated, and the injection molding device and the blow molding device are respectively arranged on two sides of the core, so that the core can be turned over through the turning device, and the core can be rapidly corresponding to the blow molding device after being separated from the injection molding station. Because the injected embryo is always coated on the mold core in the process of transferring to the blow molding station, an additional mechanism is not needed to transfer the injected embryo, and the injected embryo is not needed to be reheated after being transferred to the blow molding station, thereby completing the injection molding and blow molding process at one time, shortening the production period of products, improving the production efficiency and ensuring the continuous automation of production.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the intermediate plate mold frame according to the present invention.
Fig. 3 is a schematic perspective view of the blow molding apparatus of the present invention.
Reference numerals:
11-injection mould base plate, 12-hot runner plate, 13-injection mould cavity plate, 14-guide rod, 15-mould core, 16-backing plate, 17-guide sleeve;
21-middle plate die carrier, 22-rotating die plate, 23-guide post, 241-rotating shaft, 242-thrust bearing, 243-bearing retainer ring, 244-bevel gear set, 245-reduction box, 246-servo motor, 247-travel switch;
31-blow mould base plate, 32-slide rail, 33-blow mould, 331-positioning pin, 34-guide block, 35-cushion block, 36-oil cylinder fixing plate;
41-a first hydraulic oil cylinder, 42-a second hydraulic oil cylinder, 43-a third hydraulic oil cylinder, 44-a fourth hydraulic oil cylinder.
Detailed Description
The present invention will be described in further detail below.
As shown in fig. 1 to 3, an injection blow molding apparatus includes a frame and a core 15;
the core 15 is rotatably connected to the frame;
an injection molding device and a blow molding device are respectively arranged on two sides of the mold core 15;
the rack is provided with a first distance adjusting device, a second distance adjusting device and a turnover device;
the first distance adjusting device is used for adjusting the distance between the mold core 15 and the injection molding device so as to enable the mold core 15 and the injection molding device to be matched or separated;
the injection molding device is used for injecting high-temperature melt after the mold core 15 and the injection molding device are matched to form an injection blank on the mold core 15;
a turning device is connected to the core 15 for turning the core 15 so that the core 15 corresponds to the blow molding device;
the second distance adjusting device is used for adjusting the distance between the core 15 and the blow molding device so as to enable the core 15 and the blow molding device to be matched or separated;
the blow molding apparatus is used to introduce high pressure gas into the preforms on the core 15 to form blow molded articles.
In operation, the core 15 is first brought into correspondence with the injection device, and then the distance between the core 15 and the injection device is reduced by the first distance adjusting means, so that the core 15 and the injection device are fitted. After the splicing, the injection molding device injects high-temperature melt into the injection molding cavity, and forms an injection blank to be coated on the mold core 15. The first distance adjustment means is then used to increase the distance between the core 15 and the injection moulding device, so that the core 15 and the injection moulding device are separated. The core 15 is then turned over by the turning device so that the core 15 corresponds to the blow molding device. The second distance adjusting device is used to reduce the distance between the core 15 and the blow molding device, so that the core 15 and the blow molding device are combined. After the split, the blow molding apparatus supplies high pressure gas to the preform on the core 15 to form a blow molded article. Finally, the distance between the core 15 and the blow molding device is increased through a second distance adjusting device, so that the core 15 and the blow molding device are separated, and the blow molded product can be taken out.
This embodiment will mould plastics and two stations collections of blow molding in an organic whole, because mould plastics device and blow molding device and locate core 15 both sides respectively, through turning device with core 15 upset, can make core 15 break away from behind the station of moulding plastics, correspond with the blow molding device fast. Because the injected embryo is always coated on the mold core 15 in the process of transferring to the blow molding station, an additional mechanism is not needed to transfer the injected embryo, and the injected embryo is not needed to be reheated after being transferred to the blow molding station, so that the injection molding and blow molding process can be completed at one time, the production period of the product is shortened, the production efficiency is improved, and the continuous automation of the production is ensured.
Preferably, the frame level sets up, and the device of moulding plastics locates frame one end, and intermediate lamella die carrier 21 sliding connection is in the frame middle part, and the blow molding device locates the frame other end. Both sides of the middle plate mould frame 21 are provided with the mould cores 15, and the first distance adjusting device drives the middle plate mould frame 21 to move towards the injection molding device, so that the mould cores 15 and the injection molding device are spliced to form a closed space, and injection molding can be performed. After the injection molding is completed, the first distance adjusting device drives the middle plate mold frame 21 to move back to the direction of the injection molding device, so that the mold core 15 is separated from the injection molding device. The inverting device then inverts the core 15 so that the core 15 corresponds to the blow molding device for the next blow molding operation.
Specifically, the injection mold base plate 11 is fixed on a rack (a fixing plate of an injection molding machine) through screws, and four guide holes are formed in the injection mold base plate 11 and are sleeved on guide rods 14 of the rack. The injection mold cavity plate 13 is connected with the injection mold base plate 11 through screws.
The hot runner is a flow path of plastic melt entering the injection molding cavity, a heating device is arranged around the hot runner plate 12 to ensure that the plastic melt is always in a molten state, a hot runner nozzle is connected into the injection molding cavity, the hot runner plate 12 is connected with the injection molding mold base plate 11 through screws, and a backing plate 16 is arranged in the middle of the hot runner plate.
The intermediate plate includes an intermediate plate mold frame 21 and a rotating mold plate 22. The middle plate die carrier 21 is connected to the injection molding machine through the guide rod 14 in a sliding manner, the rotating die plate 22 with the core 15 is arranged in the middle plate die carrier 21 and connected to the middle plate die carrier 21 through the rotating shaft 241, the thrust bearing 242 is arranged at the joint of the rotating shaft 241 and the rotating die plate 22, one side of the thrust bearing 242 is provided with a bearing retainer 243, and the thrust bearing 242 is used for bearing axial load force. The rotary shaft 241 is driven to rotate by a servo motor 246, the servo motor 246 is connected with a reduction gearbox 245, the reduction gearbox 245 can increase the torque of the servo motor 246, the output shaft of the reduction gearbox 245 is connected with a bevel gear set 244, and the bevel gear set 244 comprises a first bevel gear and a second bevel gear which are in meshing transmission, so that the rotary template 22 rotates. The turning device for turning the core 15 may employ various prior arts. The present embodiment turns the core 15 by means of the bevel gear set 244, and easily changes the transmission direction, so that the structure is more compact.
The first distance adjusting device comprises a first hydraulic oil cylinder 41 and a second hydraulic oil cylinder 42 which are respectively arranged on two sides of the middle plate die carrier 21, and the first hydraulic oil cylinder 41 and the second hydraulic oil cylinder 42 simultaneously drive the middle plate die carrier 21 to move so that the middle plate die carrier 21 can move close to or away from the injection molding device and the blow molding device.
In order to better control the turning angle of the turning device, in this embodiment, the intermediate plate mold frame 21 is provided with a travel switch 247, the travel switch 247 is arranged on one side of the second bevel gear, and a contact is arranged on the rotating shaft 241 of the second bevel gear, and the contact is arranged corresponding to the travel switch 247. When the bevel gear set 244 is driven by the servo motor 246 to rotate the rotating shaft 241, the core 15 is also rotated. After the mold core 15 rotates 180 degrees, the contact triggers the travel switch 247, the travel switch 247 is switched off, the servo motor 246 stops rotating, the mold core 15 stops rotating at a preset position, the mold core 15 is turned over, and the mold core 15 can correspond to an injection molding device or a blow molding device conveniently.
The blow molds 33 of the blow molding device include a first blow mold and a second blow mold, which are respectively located at both sides of the core 15, and preferably, the first blow mold and the second blow mold are arranged in left-right symmetry with the core 15 as a center. The oil cylinder fixing plate 36 is sleeved on the guide rod 14, and the second distance adjusting device comprises a third hydraulic oil cylinder 43 and a fourth hydraulic oil cylinder 44 which are installed on the oil cylinder fixing plate 36 and respectively connected to the first blow molding die and the second blow molding die, and drives the first blow molding die and the second blow molding die to approach and move away from each other, so that the die opening and closing process of the blow molding die 33 is realized. When the first blow mold and the second blow mold move towards each other, the first blow mold and the second blow mold clamp the mold core 15 with the injected blank tightly so as to form a closed blow mold cavity. The mold core 15 is provided with a blowing hole, and the injected embryo is blown and formed in a blow molding cavity; when the first blow mold and the second blow mold are moved away from each other, the blow mold cavity is opened and the blow molded article can be removed.
The frame is connected with a blow mold base plate 31, and the first blow mold and the second blow mold are respectively connected with the blow mold base plate 31 in a sliding manner. In order to make the opening and closing of the blow cavity more accurate, the blow mold base plate 31 is provided with a guide device, and the extending direction of the guide device is parallel to the moving direction of the first blow mold and the second blow mold.
Specifically, guider is slide rail 32 on the blowing mould bedplate 31, and first blowing mould and second blowing mould all are equipped with slide rail 32 assorted guide block 34, and guide block 34 sliding connection guarantees that first blowing mould and second blowing mould's compound die direction is accurate in slide rail 32, is equipped with locating pin 331 on first blowing mould and the die joint of second blowing mould for guarantee the accurate concatenation of mould. The two sides of the slide rail 32 are respectively provided with a cushion block 35, and the cushion blocks 35 ensure the distance between the blow mold base plate 31 and the intermediate plate mold frame 21.
Preferably, the slide rail 32 and the guide block 34 are both T-shaped structures, and have a large contact area, so that the blow mold 33 is stable during sliding, and the stability and accuracy of guiding are improved.
The injection mould base plate 11, the intermediate plate mould base 21 and the blow mould base plate 31 are respectively provided with a guide hole, the guide rods connect the plates together through the guide holes, the plates can be accurately matched, and in addition, the guide rods have a certain load effect.
In order to make the mold core 15 precisely fit with the injection molding device and the blow molding device respectively, a guide post 23 is arranged on the rotating mold plate 22, and guide sleeves 17 matched with the guide post 23 are arranged on the cushion blocks 35 on the injection molding cavity plate 13 and the blow molding mold seat plate 31.
An injection blow molding method comprises the following steps,
the first distance adjusting device adjusts the distance between the mold core 15 and the injection molding device, so that the mold core 15 and the injection molding device are matched;
the injection molding device injects high-temperature melt after the mold core 15 and the injection molding device are closed, and forms a casting blank on the mold core 15;
the first distance adjusting device adjusts the distance between the mold core 15 and the injection molding device, so that the mold core 15 and the injection molding device are matched;
the overturning device overturns the mold core 15, and the mold core 15 corresponds to the blow molding device after positioning;
the second distance adjusting device adjusts the distance between the mold core 15 and the blow molding device, so that the mold core 15 and the blow molding device are matched;
the blow molding apparatus supplies high-pressure gas to the preform on the core 15 to produce a blow molded article.
The specific working process is that when injection molding is started, the first hydraulic cylinder 41 and the second hydraulic cylinder 42 push the intermediate plate mold frame 21 to approach the injection molding cavity plate 13, firstly, the guide post 23 on the rotating mold plate 22 is matched with the guide sleeve 17 on the injection molding cavity plate 13 to ensure correct moving direction, then the injection molding cavity plate 13 and the rotating mold plate 22 are assembled, high-temperature melt injected by the injection molding machine enters the mold cavity through a hot runner, after an injection blank is cooled and shaped slightly, the first hydraulic cylinder 41 and the second hydraulic cylinder 42 push the intermediate plate mold frame 21 in opposite directions to open the injection molding mold, the injection blank is wrapped on the mold core 15, the intermediate plate mold frame 21 moves to a designated position, and the mold opening action is completed.
After the injection molding device is opened, the mold core 15 on one side of the injection molding needs to be turned to the other side by the intermediate plate mold frame 21, firstly, the servo motor 246 drives the rotating shaft 241 to move according to a signal, the rotating mold plate 22 rotates along with the rotating shaft, after the half-cycle rotation, the travel switch 247 is switched off, at the moment, the servo motor 246 does not work any more, the rotating action is stopped, and the mold core 15 moves to a corresponding position.
The middle plate mold frame 21 starts to move towards a blowing device on a moving plate of an injection molding machine, firstly, a guide post 23 on the middle plate mold frame 21 is matched with a guide sleeve 17 on a blowing mold seat plate 31 to ensure the accuracy of the movement direction, then, a blowing mold 33 moves along a slide rail 32 and is in contact with a mold core 15 under the driving of a third hydraulic oil cylinder 43 and a fourth hydraulic oil cylinder 44, the blowing mold 33 is spliced and matched through a positioning pin 331 to form a closed cavity, at the moment, high-pressure air enters an injection blank from a cavity through a channel, the injection blank is blown, and a blowing product is manufactured through a blowing cavity.
After the blow-molded product is cooled and shaped, the third hydraulic oil cylinder 43 and the fourth hydraulic oil cylinder 44 drive the blow-molding die 33 to open the die and keep away from the mold core 15, the blow-molded product is taken out, then the injection molding process is carried out, and the intermediate plate die carrier 21 continues to approach the injection molding cavity plate 13, so that the next injection molding process is completed.
The injection blow molding method integrates the injection molding station and the blow molding station, the injection blank is immediately rotated to the blow molding station after the injection molding process is finished, the injection blank is always coated on the mold core 15 in the transfer process, an additional mechanism is not needed for transferring the injection blank, reheating is not needed, continuous automation of production is guaranteed, the injection molding and blow molding process can be finished at one time, and the production period of products is shortened.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (10)
1. An injection blow molding device is characterized in that: comprises a frame and a mold core;
the mold core is rotationally connected with the frame;
an injection molding device and a blow molding device are respectively arranged on two sides of the mold core;
the rack is provided with a first distance adjusting device, a second distance adjusting device and a turnover device;
the first distance adjusting device is used for adjusting the distance between the core and the injection molding device so as to enable the core and the injection molding device to be matched or separated;
the injection molding device is used for injecting high-temperature melt after the mold core and the injection molding device are matched to form an injection blank on the mold core;
the overturning device is connected with the core and is used for overturning the core so as to enable the core to correspond to the blow molding device;
the second distance adjusting device is used for adjusting the distance between the core and the blow molding device so as to enable the core and the blow molding device to be matched or separated;
the blow molding apparatus is used to introduce high pressure gas into the preforms on the cores to form blow molded articles.
2. An injection blow molding apparatus as defined in claim 1, wherein: the frame sliding connection has the intermediate lamella die carrier, and turning device rigid coupling is in the intermediate lamella die carrier, and the core rotates to be connected in the intermediate lamella die carrier, and first distance adjusting device rigid coupling is in the frame and connect the intermediate lamella die carrier for order about the intermediate lamella die carrier and remove towards the device direction of moulding plastics.
3. An injection blow molding apparatus according to claim 2, wherein: the turnover device comprises a servo motor, a first bevel gear and a second bevel gear, wherein the servo motor is fixedly connected with the middle plate die carrier and connected with the first bevel gear and used for driving the first bevel gear to rotate, the second bevel gear is rotatably connected with the middle plate die carrier and fixedly connected with the die core, and the first bevel gear and the second bevel gear are in meshing transmission.
4. An injection blow molding apparatus according to claim 3, wherein: the intermediate plate die carrier is provided with a travel switch, the travel switch is arranged on one side of the second bevel gear, the second bevel gear is provided with a contact, and the contact is arranged corresponding to the travel switch.
5. An injection blow molding apparatus as defined in claim 1, wherein: the blow molding device comprises a first blow molding die and a second blow molding die, the first blow molding die and the second blow molding die are respectively positioned on two sides of the core, and the second distance adjusting device is connected to the first blow molding die and the second blow molding die and used for driving the first blow molding die and the second blow molding die to close the dies oppositely or open the dies oppositely.
6. An injection blow molding apparatus according to claim 5, wherein: the frame rigid coupling has the blowing mould bedplate, and first blowing mould and second blowing mould sliding connection are in the blowing mould bedplate respectively, and the blowing mould bedplate is equipped with guider, and guider's extending direction is parallel with the displacement direction of first blowing mould and second blowing mould.
7. An injection blow molding apparatus according to claim 6, wherein: the guide device is a slide rail on the blow mold base plate, the first blow mold and the second blow mold are both provided with guide blocks matched with the slide rail, and the guide blocks are connected to the slide rail in a sliding manner.
8. An injection blow molding apparatus according to claim 7, wherein: the slide rail and the guide block are both of T-shaped structures.
9. An injection blow molding apparatus as defined in claim 1, wherein: and a guide pillar is arranged on one side of the mold core, and the injection molding device and the blow molding device are both provided with guide sleeves matched with the guide pillars.
10. An injection blow molding method is characterized in that: the injection blow molding apparatus according to any one of claims 1 to 9, comprising the steps of,
the first distance adjusting device adjusts the distance between the mold core and the injection molding device, so that the mold core and the injection molding device are matched;
the injection molding device injects high-temperature melt after the mold core and the injection molding device are assembled, and forms an injection blank on the mold core;
the first distance adjusting device adjusts the distance between the mold core and the injection molding device, so that the mold core and the injection molding device are matched;
the overturning device overturns the mold core, and the mold core corresponds to the blow molding device after positioning;
the second distance adjusting device adjusts the distance between the mold core and the blow molding device, so that the mold core and the blow molding device are matched;
the blow molding device inputs high-pressure gas to the injection blank on the core to form a blow molded product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111441157.4A CN114228106A (en) | 2021-11-30 | 2021-11-30 | Injection blow molding device and molding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111441157.4A CN114228106A (en) | 2021-11-30 | 2021-11-30 | Injection blow molding device and molding method |
Publications (1)
| Publication Number | Publication Date |
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| CN114228106A true CN114228106A (en) | 2022-03-25 |
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| CN202111441157.4A Pending CN114228106A (en) | 2021-11-30 | 2021-11-30 | Injection blow molding device and molding method |
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Application publication date: 20220325 |