CN219236016U - Needle valve hot runner system for PET blow molding product - Google Patents
Needle valve hot runner system for PET blow molding product Download PDFInfo
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- CN219236016U CN219236016U CN202320197932.4U CN202320197932U CN219236016U CN 219236016 U CN219236016 U CN 219236016U CN 202320197932 U CN202320197932 U CN 202320197932U CN 219236016 U CN219236016 U CN 219236016U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model discloses a needle valve hot runner system for PET blow molding products, which comprises a lower template, wherein an upper template is fixedly arranged above the lower template, a splitter plate is fixedly arranged on the top surface of the lower template, a mold core is arranged on one side of the splitter plate, a hot nozzle is arranged between the splitter plate and the mold core, one end of the hot nozzle is fixedly connected with the splitter plate, the other end of the hot nozzle is inserted into the mold core, a glue inlet channel is formed in the splitter plate and communicated with the hot nozzle, a valve needle is movably arranged in the hot nozzle, a push plate is arranged on one side of the splitter plate, which is far away from the mold core, one end of the valve needle penetrates through the splitter plate and is fixedly connected with the push plate, a driving piece is arranged on one side of the push plate, which is far away from the splitter plate, and is used for driving the push plate to move forwards and backwards. The utility model provides a needle valve hot runner system for a PET blow molding product, which can solve the problem that the PET blow molding product has higher appearance requirement, directly feeds glue on the surface of the product, has no water port waste, and avoids the poor appearance injection molding defects such as blushing, flow marks and the like generated near a blow molding product gate.
Description
Technical Field
The utility model relates to the technical field of hot runners, in particular to a needle valve hot runner system for PET blow molding products.
Background
The PET plastic bottle is widely used for packaging carbonated beverage, drinking water, fruit juice, ferment, tea beverage and the like, is the beverage package with the largest usage amount at present, and is widely used in various fields such as food, chemical industry, medicine package and the like. PET plastic has wide application in the packaging field, and the existing PET plastic bottle adopts a blow molding mode no matter the packaging film or coiled material is made of PET plastic.
At present, most of PET blow molding products adopt cold runner glue feeding or open hot runner glue feeding, a section of water gap is reserved at the position of a pouring gate, the blow molding products can generate injection molding defects such as large surface blushing near the pouring gate, flow marks and other appearance defects, the requirement of higher product appearance is difficult to meet, secondary processing and repairing are needed when necessary, and the production cost is increased.
Disclosure of Invention
The utility model aims to provide a needle valve hot runner system for a PET blow molding product, which can solve the problem that the PET blow molding product has higher appearance requirement, directly feeds glue on the surface of the product, has no water port waste, avoids the poor appearance injection defects such as blushing, flow marks and the like generated near a gate of the blow molded product, and achieves the aims of accurate temperature control and stable production.
The utility model discloses a needle valve hot runner system for PET blow molding products, which adopts the following technical scheme:
the utility model provides a needle valve hot runner system for PET blowing product, includes the lower bolster, the fixed cope match-plate pattern that is equipped with in top of lower bolster, the fixed division board that is equipped with in top surface of lower bolster, division board one side is equipped with the mold core, the bottom surface and the lower bolster fixed connection of mold core, the top surface and the cope match-plate pattern fixed connection of mold core, be equipped with the heat between division board and the mold core and chew, heat chew one end and division board fixed connection, the heat is chewed the other end and is pegged graft in the mold core, the glue inlet channel has been seted up in the division board, glue inlet channel and heat are chewed the intercommunication, the heat is chewed the internalization and is equipped with the needle, division board is kept away from mold core one side and is equipped with the push pedal, needle one end is passed division board and push pedal fixed connection, the push pedal is kept away from division board one side and is equipped with the driving piece, the driving piece is used for driving the push pedal back-and-forth movement.
As the preferred scheme, the hot nozzle comprises a hot nozzle body, one end of the hot nozzle body is fixedly connected with the flow distribution plate, the other end of the hot nozzle body is inserted into the mold core, a main runner is arranged in the hot nozzle body and is communicated with the glue inlet, the hot nozzle body is inserted with a nozzle core far away from one end of the flow distribution plate, a gate sleeve is sleeved on the peripheral wall of the nozzle core, and the gate sleeve is fixedly connected with the hot nozzle body.
As an optimal scheme, the peripheral wall of the hot nozzle body is provided with a copper sleeve heater.
As the preferable scheme, be equipped with the base between flow distribution plate and the lower bolster, the draw-in groove has been seted up to the top surface of base, the flow distribution plate peg graft in the draw-in groove, just be equipped with the clearance between the bottom surface of flow distribution plate and the bottom surface of draw-in groove, the bottom surface of base is equipped with a plurality of cushion.
As an optimal scheme, a limiting block is arranged between the base and the mold core, one end of the limiting block is fixedly connected with the base, and the other end of the limiting block is abutted to the mold core.
Preferably, the number of the heat nozzles is a plurality, and the plurality of heat nozzles are arranged at intervals along the length direction of the flow dividing plate.
As a preferable scheme, the side wall of the splitter plate far away from the hot nozzle is fixedly provided with a valve sleeve, and the valve needle is movably connected with the inner wall of the valve sleeve.
Preferably, the driving member is an oil cylinder.
The needle valve hot runner system for the PET blow molding product has the beneficial effects that: after the molten plastic material enters the hot nozzle from the glue inlet channel of the flow distribution plate, the molten plastic material flows through the runner inside the hot nozzle to enter the mould glue port to complete the primary blank injection moulding, and then enters the air blowing stage to form a product, so that one period of production is completed, and the needle opening action of the valve needle is driven by the driving piece to drive the push plate to move back and forth. The molten plastic material is directly fed on the surface of the product, no water port waste is generated, the defect of poor injection molding such as blushing and flow marks generated near a product gate of blow molding is avoided, the problem that the appearance requirement of the PET blow molding product is relatively high is solved, and the purposes of accurate temperature control and stable production are achieved.
Drawings
FIG. 1 is a schematic illustration of the construction of a needle valve hot runner system for a PET blow molded product according to the present utility model.
FIG. 2 is a cross-sectional view of a needle valve hot runner system for a PET blow molded product according to the present utility model.
Fig. 3 is an enlarged view at a in fig. 2.
10. A lower template; 20. an upper template; 30. a diverter plate; 31. a base; 32. a limiting block; 41. a hot nozzle body; 42. a nozzle core; 43. a sprue bush; 44. copper sleeve heater; 50. a mold core; 60. a valve needle; 61. a valve sleeve; 70. a push plate; 80. a driving member.
Detailed Description
The utility model is further illustrated and described below in conjunction with the specific embodiments and the accompanying drawings:
referring to fig. 1 and 2, a needle valve hot runner system for a PET blow molding product includes a lower die plate 10, an upper die plate 20 is fixedly disposed above the lower die plate 10, a splitter plate 30 is fixedly disposed on the top surface of the lower die plate 10, a die core 50 is disposed on one side of the splitter plate 30, the bottom surface of the die core 50 is fixedly connected with the lower die plate 10, the top surface of the die core 50 is fixedly connected with the upper die plate 20, a hot nozzle is disposed between the splitter plate 30 and the die core 50, one end of the hot nozzle is fixedly connected with the splitter plate 30, the other end of the hot nozzle is inserted into the die core 50, a glue inlet channel is disposed in the splitter plate 30, the glue inlet channel is communicated with the hot nozzle, a valve needle 60 is movably disposed in the hot nozzle, a valve sleeve 61 is fixedly disposed on a side wall of the splitter plate 30 away from the hot nozzle, the valve needle 60 is movably connected with an inner wall of the valve sleeve 61, a push plate 70 is disposed on a side of the splitter plate 30 away from the die core 50, one end of the valve needle 60 passes through the splitter plate 30 and is fixedly connected with the push plate 70, a driving member 80 is disposed on one side of the push plate 70 away from the splitter plate 30, the driving member 80 is an oil cylinder, and the driving member 80 is used for driving the push plate 70 to move forwards and backwards.
As can be seen from the above description, after the molten plastic material enters the hot nozzle from the glue inlet channel of the flow dividing plate 30, the molten plastic material flows through the runner inside the hot nozzle to enter the mold glue port to complete the primary blank injection molding, and then enters the air blowing stage to form a product, thereby completing one cycle of production, the needle opening action of the valve needle 60 is driven by the driving member 80 to drive the push plate 70 to move back and forth, and the valve sleeve 61 plays a limiting role on the valve needle 60. The molten plastic material is directly fed on the surface of the product, no water port waste is generated, the defect of poor injection molding such as blushing and flow marks generated near a product gate of blow molding is avoided, the problem that the appearance requirement of the PET blow molding product is relatively high is solved, and the purposes of accurate temperature control and stable production are achieved.
Referring to fig. 3, the hot nozzle includes a hot nozzle body 41, one end of the hot nozzle body 41 is fixedly connected with the splitter plate 30, the other end of the hot nozzle body 41 is inserted into the mold core 50, a main runner is provided in the hot nozzle body 41 and is communicated with a glue inlet, a nozzle core 42 is inserted into one end of the hot nozzle body 41 far away from the splitter plate 30, a gate sleeve 43 is sleeved on the peripheral wall of the nozzle core 42, and the gate sleeve 43 is fixedly connected with the hot nozzle body 41. The peripheral wall of the nozzle body 41 is provided with a copper bush heater 44.
As can be seen from the above description, the hot nozzle includes a hot nozzle body 41, a nozzle core 42 and a gate sleeve 43, the nozzle core 42 is inserted into one end of the hot nozzle body 41 and is fixed by the gate sleeve 43, the molten plastic material enters the main flow channel inside the hot nozzle body 41 and then flows through the nozzle core 42 to enter the mold glue opening, and the copper sleeve heater 44 heats the hot nozzle body 41 to ensure that the plastic material can smoothly pass through and avoid blocking.
Referring to fig. 2, a base 31 is disposed between the splitter plate 30 and the lower die plate 10, a clamping groove is formed on the top surface of the base 31, the splitter plate 30 is inserted into the clamping groove, a gap is formed between the bottom surface of the splitter plate 30 and the bottom surface of the clamping groove, and a plurality of cushion blocks are disposed on the bottom surface of the base 31.
As can be seen from the above description, the base 31 is used for supporting the splitter plate 30, and a gap is provided between the bottom surface of the splitter plate 30 and the bottom surface of the clamping groove, so that the splitter plate 30 is in a suspended state, and the splitter plate 30 can be prevented from dissipating heat seriously, and the base 31 is also supported on the lower die plate 10 through a cushion block. The splitter plate 30, the base 31 and the lower die plate 10 are fixedly connected by screws, and the lower die plate 10 is locked by the screws passing through the splitter plate 30 and the base 31.
Referring to fig. 2, a limiting block 32 is disposed between the base 31 and the mold core 50, one end of the limiting block 32 is fixedly connected with the base 31, and the other end of the limiting block 32 is abutted against the mold core 50.
As can be seen from the above description, the limiting block 32 is used to control the distance between the base 31 (i.e. the nozzle) of the flow distribution plate 30 and the mold core 50, so as to avoid the nozzle from being broken or the mold core 50 from being cracked.
Referring to fig. 1, the number of heat nozzles is plural, and the plural heat nozzles are arranged at intervals along the length direction of the flow dividing plate 30.
From the above description, it is known that the simultaneous operation of a plurality of heat nozzles can improve the production efficiency.
The utility model provides a needle valve hot runner system for PET blow molding products, after molten plastic material enters a hot nozzle from a rubber inlet channel of a flow distribution plate, the molten plastic material flows through a runner in the hot nozzle to enter a mold rubber port to finish primary blank injection molding, then enters an air blowing stage to form the products, one cycle of production is finished, and the needle opening action of a valve needle is driven by a driving piece to drive a push plate to move back and forth. The molten plastic material is directly fed on the surface of the product, no water port waste is generated, the defect of poor injection molding such as blushing and flow marks generated near a product gate of blow molding is avoided, the problem that the appearance requirement of the PET blow molding product is relatively high is solved, and the purposes of accurate temperature control and stable production are achieved.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.
Claims (8)
1. The needle valve hot runner system for the PET blow molding product is characterized by comprising a lower template, an upper template is fixedly arranged above the lower template, a splitter plate is fixedly arranged on the top surface of the lower template, a mold core is arranged on one side of the splitter plate, the bottom surface of the mold core is fixedly connected with the lower template, the top surface of the mold core is fixedly connected with the upper template, a hot nozzle is arranged between the splitter plate and the mold core, one end of the hot nozzle is fixedly connected with the splitter plate, the other end of the hot nozzle is inserted into the mold core, a glue inlet channel is formed in the splitter plate, the glue inlet channel is communicated with the hot nozzle, a valve needle is movably arranged in the hot nozzle, a push plate is arranged on one side of the splitter plate, far away from the mold core, of the splitter plate, one end of the valve needle penetrates through the splitter plate and is fixedly connected with the push plate, a driving piece is arranged on one side of the push plate, and the driving piece is used for driving the push plate to move back and forth.
2. The needle valve hot runner system for a PET blow molded product according to claim 1, wherein the hot nozzle comprises a hot nozzle body, one end of the hot nozzle body is fixedly connected with the flow dividing plate, the other end of the hot nozzle body is inserted into the mold core, a main runner is arranged in the hot nozzle body and is communicated with the glue inlet channel, a nozzle core is inserted into one end of the hot nozzle body far away from the flow dividing plate, a gate sleeve is sleeved on the peripheral wall of the nozzle core, and the gate sleeve is fixedly connected with the hot nozzle body.
3. A needle valve hot runner system for PET blow molded products as in claim 2 wherein the peripheral wall of the nozzle body is provided with a copper sleeve heater.
4. The needle valve hot runner system for PET blow molding products of claim 1, wherein a base is arranged between the splitter plate and the lower die plate, a clamping groove is formed in the top surface of the base, the splitter plate is inserted into the clamping groove, a gap is formed between the bottom surface of the splitter plate and the bottom surface of the clamping groove, and a plurality of cushion blocks are arranged on the bottom surface of the base.
5. The needle valve hot runner system for PET blow molded products of claim 4, wherein a stopper is provided between the base and the mold core, one end of the stopper is fixedly connected with the base, and the other end of the stopper is abutted with the mold core.
6. A needle valve hot runner system for a PET blow molded product as in claim 1 wherein the number of said heat tips is plural and a plurality of said heat tips are spaced apart along the length of the manifold.
7. A needle valve hot runner system for PET blow molded products as in claim 1 wherein said manifold is fixedly provided with a valve sleeve on a side wall remote from the nozzle, said valve needle being movably coupled to an inner wall of the valve sleeve.
8. A needle valve hot runner system for PET blow molded products as in claim 1 wherein the drive member is a ram.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320197932.4U CN219236016U (en) | 2023-02-13 | 2023-02-13 | Needle valve hot runner system for PET blow molding product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320197932.4U CN219236016U (en) | 2023-02-13 | 2023-02-13 | Needle valve hot runner system for PET blow molding product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219236016U true CN219236016U (en) | 2023-06-23 |
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ID=86847504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320197932.4U Active CN219236016U (en) | 2023-02-13 | 2023-02-13 | Needle valve hot runner system for PET blow molding product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219236016U (en) |
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2023
- 2023-02-13 CN CN202320197932.4U patent/CN219236016U/en active Active
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