CN111844646B - Hot runner system for injection molding - Google Patents
Hot runner system for injection molding Download PDFInfo
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- CN111844646B CN111844646B CN202010700594.2A CN202010700594A CN111844646B CN 111844646 B CN111844646 B CN 111844646B CN 202010700594 A CN202010700594 A CN 202010700594A CN 111844646 B CN111844646 B CN 111844646B
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- 238000001746 injection moulding Methods 0.000 title abstract description 12
- 238000002347 injection Methods 0.000 claims abstract description 32
- 239000007924 injection Substances 0.000 claims abstract description 32
- 238000009434 installation Methods 0.000 claims abstract description 23
- 230000000149 penetrating effect Effects 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 119
- 230000000694 effects Effects 0.000 claims description 24
- 229920003023 plastic Polymers 0.000 claims description 11
- 239000004033 plastic Substances 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 10
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims 1
- 235000015111 chews Nutrition 0.000 abstract description 6
- 230000001055 chewing effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Classifications
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a hot runner system for injection molding, which comprises a flow distribution plate, a main injection nozzle arranged at the top of the flow distribution plate and a plurality of hot nozzles arranged at the bottom of the flow distribution plate, wherein the flow distribution plate is provided with a main flow passage, the bottom of the main flow passage is provided with a plurality of first through holes communicated with the hot nozzles, the top of the flow distribution plate is provided with a second through hole, the inner wall of the second through hole is provided with a first movable cavity, the side wall of the main injection nozzle is provided with a first limiting plate matched with the first movable cavity, the bottom of the flow distribution plate is provided with a first movable groove, an installation ring is rotatably connected in the first movable groove, and the hot nozzles are arranged in the installation ring in a penetrating manner; the up-and-down motion of chewing through the owner penetrates and the rotation that the heat was chewed, penetrates with the owner and chews with the heat and take in to the flow distribution plate on, can be convenient do the transport to hot runner system, simultaneously with hot runner system transport to appointed place after, the equipment of completion hot runner assembly that can be convenient makes hot runner assembly's use more convenient.
Description
Technical Field
The invention belongs to the technical field of hot runner collection, and particularly relates to a hot runner system for injection molding.
Background
The hot runner system for the injection mold is a development direction of the injection molding industry, and has the advantages of saving raw materials, improving the production efficiency, improving the product quality, simplifying the subsequent processing of the product and the like compared with a cold runner. In a large injection mold, a hot runner system becomes an essential important component of the large injection mold, and pressure loss can be effectively reduced only by adopting the hot runner, so that the product is formed more smoothly, the product quality is higher, or the product is effectively formed under the condition that the common injection molding process cannot form the product.
The hot runner system is generally designed in a split mode, and few parts are integrated, so that the defects of difficulty in transportation, inconvenience in installation and the like exist, and the hot runner system can be used after being installed after being transported to a using place; if the hot runner system is installed and then transported, the hot runner system is damaged in the transporting process, and the normal use of the hot runner system is influenced.
Disclosure of Invention
The invention provides a hot runner system for injection molding, which is convenient to use and overcomes the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: a hot runner system for injection molding comprises a splitter plate, a main injection nozzle arranged at the top of the splitter plate and a plurality of hot nozzles arranged at the bottom of the splitter plate, wherein a main runner is arranged on the splitter plate, a plurality of first through holes communicated with the hot nozzles are formed in the bottom of the main runner, a second through hole is formed in the top of the splitter plate, a first movable cavity is formed in the inner wall of the second through hole, a first limiting plate matched with the first movable cavity is arranged on the side wall of the main injection nozzle, a first movable groove is formed in the bottom of the splitter plate, an installation ring is rotatably connected in the first movable groove, and the hot nozzles penetrate through the installation ring; after the plastic is melted in the injection molding machine, the plastic in a molten state enters the main runner from the main injection nozzle, the main runner conveys the plastic to the first through hole, and the plastic is sprayed out from the hot nozzle so as to be injected into the mold; when the hot runner system is transported, the main injection nozzle is pushed downwards, the first limiting plate moves to the bottom of the first movable cavity, the main injection nozzle enters the second through hole, and the top of the flow distribution plate is in a flat state; the hot nozzle is drawn out of the first through hole, the hot nozzle is rotated, the hot nozzle drives the mounting ring to rotate, the hot nozzle is rotated to be in a horizontal state, the hot nozzle is positioned in the first movable groove, the hot nozzle is prevented from extending out of the first movable groove, the surface of the whole hot runner system is accordingly in a flat state, the main injection nozzle and the hot nozzle are prevented from colliding with the outside in the carrying process of the hot runner system, and the hot runner system is protected; after the hot runner system is conveyed to a specified place, the main injection nozzle is pulled upwards, the first limiting plate is pulled to the top of the first movable cavity, the main injection nozzle is made to rise from the second through hole, the hot nozzle is rotated in the vertical direction, the hot nozzle is rotated to be in a vertical state, the hot nozzle is pushed upwards, the hot nozzle is inserted into the first through hole, the hot nozzle is fixed, the hot nozzle is made to be connected and matched with the main runner again, and the matching effect of the hot nozzle and the main runner is guaranteed; the up-and-down motion of chewing through the owner penetrates and the rotation that the heat was chewed, penetrates with the owner and chews with the heat and take in to the flow distribution plate on, can be convenient do the transport to hot runner system, simultaneously with hot runner system transport to appointed place after, the equipment of completion hot runner assembly that can be convenient reduces hot runner system's the assembly degree of difficulty, makes hot runner assembly's use more convenient.
A first connecting groove is formed in the inner wall of the first movable groove, a connecting shaft matched with the first connecting groove is arranged on the side wall of the mounting ring, a second limiting plate is arranged at the top of the hot nozzle, an annular groove is formed in the inner wall of the first through hole, and a first through groove matched with the second limiting plate is formed in the bottom of the annular groove; the side wall of the hot nozzle is provided with a third limiting plate, and the mounting ring is provided with a sealing ring assembly matched with the third limiting plate.
The mounting ring is characterized in that a connecting block is arranged on the side wall of the mounting ring, the connecting shaft is arranged on the side wall of the connecting block, a second movable groove is formed in the connecting block, the sealing ring assembly comprises a first sealing ring arranged in the second movable groove, a second sealing ring arranged in the first sealing ring and a third sealing ring arranged on the second sealing ring, a second movable cavity is formed in the first sealing ring, a third movable cavity is formed in the second sealing ring, the second sealing ring is arranged in the second movable cavity in a penetrating manner, and the third sealing ring is arranged in the third movable cavity in a penetrating manner.
A second connecting groove matched with the third sealing ring is formed in the top of the first movable groove, and a fixing plate matched with the third limiting plate is arranged on the inner wall of the third sealing ring; the bottom of the second movable cavity is provided with a third through hole, the bottom of the third movable cavity is provided with a fourth through hole, a first push rod penetrates through the third through hole, a second push rod penetrates through the fourth through hole, and the bottom of the flow distribution plate is provided with a third push rod matched with the first push rod.
The flow distribution plate is characterized in that an installation block is arranged at the bottom of the flow distribution plate, a third movable cavity is arranged on the installation block, a movable plate is arranged in the third movable cavity, a first supporting spring is arranged on the movable plate, a first connecting plate is arranged at the top of the first supporting spring, a third push rod is arranged on the first connecting plate, a fifth through hole matched with the third push rod is arranged at the bottom of the second movable groove, a lug is arranged on the third push rod, a first groove matched with the lug is arranged at the bottom of the first sealing ring, and a second supporting spring is arranged on the inner wall of the second movable groove.
The movable plate is provided with a limiting block, the inner wall of the third movable cavity is provided with a limiting rod, the bottom of the third push rod is provided with a fourth push rod, the movable plate is provided with a sixth through hole matched with the fourth push rod, the bottom of the fourth push rod is provided with a first push plate, and the bottom of the third movable cavity is provided with a third movable groove matched with the fourth push rod; and the splitter plate is provided with a transmission plate matched with the first sealing ring.
The improved automatic feeding device is characterized in that a fourth movable groove is formed in the splitter plate, the transmission plate is arranged in the fourth movable groove, a sliding groove is formed in the inner wall of the fourth movable groove, a sliding block matched with the sliding groove is arranged on the side wall of the transmission plate, a first reset spring is arranged on the inner wall of the fourth movable groove, a fifth movable groove is formed in the transmission plate, a second push plate is rotatably connected in the fifth movable groove, and a second groove matched with the second push plate is formed in the top of the fourth movable groove.
A fixed plate is arranged in the mounting ring, heat insulation cotton is arranged on the inner wall of the fixed plate, a fourth movable cavity is arranged on the mounting ring, a sixth movable groove is formed in the side wall of the fourth movable cavity, a movable block is arranged in the fourth movable cavity, a first connecting rod is movably connected to the movable block, the other end of the first connecting rod is movably connected to the fixed plate, and the first connecting rod penetrates through the sixth movable groove; the top of the fourth movable cavity is provided with a seventh movable groove, the mounting ring is provided with a connecting spring, the bottom end of the connecting spring is provided with a first push block, and the first push block is connected with the movable block through a second connecting rod.
The side wall of the first movable cavity is provided with a fifth movable cavity, a supporting block is arranged in the fifth movable cavity, the top of the fifth movable cavity is provided with an eighth movable groove, the supporting block is provided with a second push block matched with the eighth movable groove, and the flow distribution plate is provided with a fixed frame matched with the second push block.
A cavity is formed in the flow distribution plate, a frame body is arranged in the cavity, a fixing ring is arranged in the frame body and made of elastic materials, a seventh through hole is formed in the side wall of the frame body, a fifth push rod penetrates through the seventh through hole, a third push plate is arranged at one end of the fifth push rod, and a second reset spring is arranged on the third push plate; the cavity top is equipped with the sixth activity chamber, be equipped with the baffle in the sixth activity chamber, be equipped with the ninth activity groove on the sixth activity chamber lateral wall, be equipped with on the baffle with ninth activity groove matched with third ejector pad.
The invention has the following advantages: the up-and-down motion of chewing through the owner penetrates and the rotation that the heat was chewed, penetrates with the owner and chews with the heat and take in to the flow distribution plate on, can be convenient do the transport to hot runner system, simultaneously with hot runner system transport to appointed place after, the equipment of completion hot runner assembly that can be convenient reduces hot runner system's the assembly degree of difficulty, makes hot runner assembly's use more convenient.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a right side view of the present invention.
Fig. 3 is a cross-sectional view taken along a-a in fig. 2.
Fig. 4 is an enlarged view of a portion a in fig. 3.
Fig. 5 is an enlarged view of fig. 3 at B.
Fig. 6 is a cross-sectional view taken along line B-B of fig. 2.
Fig. 7 is an enlarged view of fig. 6 at C.
Fig. 8 is a cross-sectional view taken along line K-K in fig. 2.
Fig. 9 is an enlarged view of fig. 8 at D.
Fig. 10 is a front view of the present invention.
Fig. 11 is a cross-sectional view taken along line E-E of fig. 10.
Fig. 12 is an enlarged view of fig. 11 at E.
Fig. 13 is an enlarged view of fig. 11 at F.
Fig. 14 is a cross-sectional view taken along F-F in fig. 10.
Fig. 15 is an enlarged view at G in fig. 14.
Fig. 16 is an enlarged view at H in fig. 15.
Fig. 17 is an enlarged view at I in fig. 15.
Fig. 18 is a cross-sectional view taken along G-G in fig. 10.
Fig. 19 is an enlarged view at J in fig. 18.
Fig. 20 is a sectional view taken along H-H in fig. 10.
Fig. 21 is an enlarged view at K in fig. 20.
Fig. 22 is a cross-sectional view taken along line I-I of fig. 10.
Fig. 23 is an enlarged view at L in fig. 22.
Fig. 24 is an enlarged view of fig. 23 at M.
Detailed Description
As shown in fig. 1 to 24, a hot runner system for injection molding includes a flow distribution plate 1, a main injection nozzle 2 disposed at the top of the flow distribution plate 1, and a plurality of hot injection nozzles 3 disposed at the bottom of the flow distribution plate 1, wherein a main flow channel 11 is disposed on the flow distribution plate 1, a plurality of first through holes communicated with the hot injection nozzles 3 are disposed at the bottom of the main flow channel 11, a second through hole is disposed at the top of the flow distribution plate 1, a first movable cavity 16 is disposed on an inner wall of the second through hole, a first limiting plate 22 matched with the first movable cavity 16 is disposed on a side wall of the main injection nozzle 2, a first movable groove 12 is disposed at the bottom of the flow distribution plate 1, an installation ring 4 is rotatably connected in the first movable groove 12, and the hot injection nozzles 3 are disposed in the installation ring 4 in a penetrating; after the plastic is melted in the injection molding machine, the plastic in a molten state enters the main runner from the main injection nozzle, the main runner conveys the plastic to the first through hole, and the plastic is sprayed out from the hot nozzle so as to be injected into the mold; when the hot runner system is transported, the main injection nozzle is pushed downwards, the first limiting plate moves to the bottom of the first movable cavity, the main injection nozzle enters the second through hole, and the top of the flow distribution plate is in a flat state; the hot nozzle is drawn out of the first through hole, the hot nozzle is rotated, the hot nozzle drives the mounting ring to rotate, the hot nozzle is rotated to be in a horizontal state, the hot nozzle is positioned in the first movable groove, the hot nozzle is prevented from extending out of the first movable groove, the surface of the whole hot runner system is accordingly in a flat state, the main injection nozzle and the hot nozzle are prevented from colliding with the outside in the carrying process of the hot runner system, and the hot runner system is protected; after the hot runner system is conveyed to a specified place, the main injection nozzle is pulled upwards, the first limiting plate is pulled to the top of the first movable cavity, the main injection nozzle is made to rise from the second through hole, the hot nozzle is rotated in the vertical direction, the hot nozzle is rotated to be in a vertical state, the hot nozzle is pushed upwards, the hot nozzle is inserted into the first through hole, the hot nozzle is fixed, the hot nozzle is made to be connected and matched with the main runner again, and the matching effect of the hot nozzle and the main runner is guaranteed; the up-and-down motion of chewing through the owner penetrates and the rotation that the heat was chewed, penetrates with the owner and chews with the heat and take in to the flow distribution plate on, can be convenient do the transport to hot runner system, simultaneously with hot runner system transport to appointed place after, the equipment of completion hot runner assembly that can be convenient reduces hot runner system's the assembly degree of difficulty, makes hot runner assembly's use more convenient.
A first connecting groove is formed in the inner wall of the first movable groove 12, a connecting shaft 412 matched with the first connecting groove is arranged on the side wall of the mounting ring 4, a second limiting plate 32 is arranged at the top of the hot nozzle 3, an annular groove 19 is formed in the inner wall of the first through hole, and a first through groove matched with the second limiting plate 32 is formed in the bottom of the annular groove 19; a third limiting plate 31 is arranged on the side wall of the hot nozzle 3, and a sealing ring component matched with the third limiting plate 31 is arranged on the mounting ring 4; the mounting ring is rotatably connected with the first movable groove under the mutual matching of the connecting shaft and the first connecting groove, so that the hot nozzle is rotated into the first movable groove during carrying, and the damage to the hot nozzle caused by collision in the carrying process is avoided; the first connecting groove is arranged at one end of the first movable groove, which is close to the notch, so that the mounting ring has enough space to rotate, and the operation difficulty of the hot nozzle is reduced; when the hot nozzle is installed, the hot nozzle is inserted into the installation ring, the second limiting plate enters the ring groove through the first through groove, the hot nozzle is rotated, the second limiting plate is staggered with the first through groove, the hot nozzle is preliminarily fixed at the first through hole, so that the hot nozzle can be operated, the hot nozzle is further fixed at the first through hole, and the fixing difficulty of the hot nozzle is reduced; the heat is chewed and is tentatively fixed the back at first through-hole department, chews to the heat and do further fixed under the sealing washer subassembly effect, makes the heat chew and form sealing connection with first through-hole, makes the plastics in the sprue directly flow into in the heat chews, guarantees the reliability that hot runner system used.
The side wall of the mounting ring 4 is provided with a connecting block 41, the connecting block is provided with a second through groove matched with the second limiting plate, the connecting shaft 412 is arranged on the side wall of the connecting block 41, the connecting block 41 is provided with a second movable groove 411, the sealing ring assembly comprises a first sealing ring 44 arranged in the second movable groove 411, a second sealing ring 45 arranged on the first sealing ring 44 and a third sealing ring 46 arranged on the second sealing ring 45, and the first sealing ring cannot be separated from the second movable groove but can rotate in the second movable groove; a second movable cavity is arranged on the first sealing ring 44, a third movable cavity is arranged on the second sealing ring 45, the second sealing ring 45 is arranged in the second movable cavity in a penetrating manner, and the third sealing ring 46 is arranged in the third movable cavity in a penetrating manner; the first sealing rings, the second sealing rings and the third sealing rings are all two groups, the independent first sealing rings, the independent second sealing rings and the independent third sealing rings are all in semicircular structures, the two groups of first sealing rings are mutually matched to form complete circular rings, and similarly, the two groups of second sealing rings and the two groups of third sealing rings are matched to form complete circular ring structures; under the arrangement of the first sealing ring, the second sealing ring and the third sealing ring, the length of the sealing ring is increased, the sealing ring can be ensured to be connected and matched with the top of the first movable groove, so that the heat nozzle is fixed at the first through hole, and the connecting effect of the heat nozzle and the first through hole is ensured; the second sealing ring cannot be separated from the first sealing ring, the third sealing ring cannot be separated from the second sealing ring, when the second sealing ring moves to the top of the second movable cavity, the first sealing ring and the second sealing ring form sealing fit, and the sealing fit mode of the second sealing ring and the third sealing ring is the same as that of the first sealing ring and the second sealing ring.
A second connecting groove matched with the third sealing ring 46 is formed in the top of the first movable groove 12, the third sealing ring is connected with the second connecting groove through threads, and a fixing plate 461 matched with the third limiting plate 31 is arranged on the inner wall of the third sealing ring 46; a third through hole is formed in the bottom of the second movable cavity, a fourth through hole is formed in the bottom of the third movable cavity, a first push rod 441 penetrates through the third through hole, a second push rod 451 penetrates through the fourth through hole, and a third push rod 1407 matched with the first push rod 441 is arranged at the bottom of the flow distribution plate 1; the two ends of the first push rod are respectively provided with a fourth limiting plate 4411, and the second push rod has the same structure as the first push rod; after the second limiting plate is inserted into the first through groove, the heat nozzle is rotated to enable the position of the second limiting plate to be staggered with that of the first through groove, the heat nozzle is preliminarily fixed in the first through hole, the third push rod is pushed upwards, the third push rod pushes the first push rod to move upwards and simultaneously pushes the second sealing ring to move upwards, the first push rod pushes the second push rod to move upwards and simultaneously pushes the third sealing ring to move upwards, the third sealing ring is pushed to the bottom of the second connecting groove under the mutual matching of the push rods, the first sealing ring is rotated, the first sealing ring drives the third sealing ring to rotate, the third sealing ring is rotated into the second connecting groove, and the connection between the third sealing ring and the second connecting groove is completed; when the third sealing ring is arranged in the second connecting groove, the fixing plate is abutted against the bottom of the third limiting plate, the heat nozzle is fixed at the first through hole under the action of the fixing plate, and meanwhile, the heat nozzle is in sealing fit with the first through hole by means of the mutual fit of the fixing plate and the third limiting plate, so that the connecting effect of the heat nozzle is ensured; one end of the heat nozzle is inserted into the first through hole and then plays a role in fixing the heat nozzle, so that the heat nozzle cannot rotate, and the use reliability of the hot runner system is ensured.
The bottom of the flow distribution plate 1 is provided with an installation block 140, the installation block 140 is provided with a third movable cavity 1401, a movable plate 1403 is arranged in the third movable cavity 1401, the movable plate 1403 is provided with a first support spring 1406, the top of the first support spring 1406 is provided with a first connection plate 14071, a third push rod 1407 is arranged on the first connection plate 14071, the bottom of the second movable groove is provided with a fifth through hole matched with the third push rod 1407, the third push rod 1407 is provided with a bump 14072, the bottom of the first seal ring 44 is provided with a first groove matched with the bump 14072, and the inner wall 411 of the second movable groove is provided with a second support spring 413; after the hot nozzle is preliminarily fixed at the first through hole, pushing the movable plate to the outer side of the third movable cavity, driving the first connecting plate to move to the outer side of the third movable cavity by the movable plate, after the first connecting plate moves out of the third movable cavity, pushing the first connecting plate to move upwards by the first supporting spring, pushing the third push rod to move upwards along with the first connecting plate, pushing the first push rod and the second push rod to move upwards under the action of the third push rod, pushing the third sealing ring to the bottom of the second connecting groove, and enabling the third sealing ring to form sealing fit with the second connecting groove so as to fix the hot nozzle; when the hot nozzle needs to be replaced, the third sealing ring is rotated out of the second connecting groove, the first sealing ring is rotated, the position of the first sealing ring is adjusted, the first groove at the bottom of the first sealing ring is rotated into the second movable groove, the movable plate is moved, the lug is embedded into the first groove, the movable plate is moved again, under the mutual matching of the lug and the first groove, the movable plate drives the first sealing ring to move when moving, the first sealing ring moves to drive the whole sealing ring assembly to move, the two groups of first sealing rings are separated from each other, the distance between the two groups of first sealing rings is increased, so that the hot nozzle can be taken out of the mounting ring, and the fixed plate and the third limiting plate are prevented from colliding to cause obstruction to the disassembly of the hot nozzle.
A limiting block is arranged on the movable plate 1401, a limiting rod 1408 is arranged on the inner wall of the third movable cavity 1401, a fourth push rod 1404 is arranged at the bottom of the third push rod 1407, a sixth through hole matched with the fourth push rod 1404 is arranged on the movable plate 1403, a first push plate 1405 is arranged at the bottom of the fourth push rod 1404, and a third movable groove 1402 matched with the fourth push rod 1404 is arranged at the bottom of the third movable cavity 1401; the splitter plate 1 is provided with a transmission plate 110 matched with the first sealing ring 44; under the mutual cooperation of the limiting block and the limiting rod, the motion stroke of the movable plate is limited, so that the movable plate moves in a specified range, and the movable plate is prevented from being separated from the third movable cavity; when the heat nozzle is replaced, the first sealing ring is rotated by the transmission plate, the first sealing ring drives the third sealing ring to rotate, the third sealing ring is rotated out of the second connecting groove, the protruding block is embedded into the first groove, the fourth push rod is pushed to one end of the third movable groove, the fourth push rod drives the movable plate to move, the third push rod drives the first sealing ring to move, the two groups of first sealing rings are separated from each other, the heat nozzle is rotated, the second limiting plate is rotated to the position of the first through groove, the heat nozzle can be directly taken out of the mounting ring, and the difficulty in disassembling the heat nozzle is reduced; the back is torn out to heat, downstream pulling fourth push rod, with first connecting plate pulling to third activity chamber top position department, toward third activity intracavity removal fly leaf, make first connecting plate enter into the third activity intracavity, utilize the third activity chamber to do fixed to first connecting plate, the third push rod is deviate from the second activity inslot, third sealing washer and second sealing washer lose the support back downstream, two sets of first sealing washers are close to each other under the second supporting spring effect to wait for new heat to chew and pack into.
A fourth movable groove is formed in the flow distribution plate 1, the driving plate 110 is arranged in the fourth movable groove, a sliding groove 160 is formed in the inner wall of the fourth movable groove, a sliding block matched with the sliding groove 160 is arranged on the side wall of the driving plate 110, a first reset spring 1102 is arranged on the inner wall of the fourth movable groove, a fifth movable groove is formed in the driving plate 110, a second push plate 1101 is rotatably connected in the fifth movable groove, and a second groove 150 matched with the second push plate 1101 is formed in the top of the fourth movable groove; when the hot nozzle is installed, the movable plate is pushed to enable the first connecting plate to move out of the third movable cavity, the third push rod is inserted into the second movable groove to push the second sealing ring and the third sealing ring to move upwards, the protruding block is embedded into the first groove, the movable plate is moved to enable the movable plate to drive the first sealing ring to move, the two groups of first sealing rings are far away from each other, and the distance between the two groups of third sealing rings and the fixed plate is increased so that the hot nozzle can be directly inserted into the installation ring; after the hot nozzle is preliminarily fixed in the first through hole, the second push plate is turned out from the second groove, the second push plate is rotated to be in a horizontal state, the second push plate is pressed into the fourth movable groove, the driving plate is contacted with the side wall of the first sealing ring, the second push plate is pushed to drive the driving plate to move, the driving plate drives the first sealing ring to drive, the second push plate is released, the second push plate is reset under the action of the first reset spring, the second push plate is continuously pushed, the driving plate is enabled to push the first sealing ring to rotate for multiple times until the third sealing ring and the second connecting groove form connection fit, and the fixing of the hot nozzle is completed; the first sealing washer of mode drive through the driving plate rotates to drive the third sealing washer and rotate the connection that the completion heat was chewed, reduce and rotate the third sealing washer degree of difficulty, avoid the collar to cause the hindrance to the rotation of third sealing washer, make the installation of heat chewing more convenient, prevent to appear because of can't finding the unable assembly problem of instrument difference.
A fixed plate 43 is arranged in the mounting ring 4, heat insulation cotton is arranged on the inner wall of the fixed plate 43, a fourth movable cavity 42 is arranged on the mounting ring 4, a sixth movable groove is formed in the side wall of the fourth movable cavity 42, a movable block 432 is arranged in the fourth movable cavity, a fixed spring 433 is arranged on the side wall of the movable block, a first connecting rod 431 is movably connected to the movable block 432, the other end of the first connecting rod 431 is movably connected to the fixed plate 43, and the first connecting rod 431 is arranged in the sixth movable groove in a penetrating mode; a seventh movable groove is formed in the top of the fourth movable cavity 42, a connecting spring 472 is arranged on the mounting ring 4, a first push block 47 is arranged at the bottom end of the connecting spring 472, and the first push block 47 is connected with the movable block 432 through a second connecting rod 471; one fixing plate is connected with two first connecting rods, and one first connecting rod is connected with a movable block; when the hot nozzle is inserted into the mounting ring, the first push block is pushed towards the mounting ring, the first push block moves to drive the second connecting rod to rotate around the connecting point, the second connecting rod pushes the movable block to move in the fourth movable cavity, the two movable blocks connected with the fixed plate are far away from each other, the first connecting rod pulls the fixed plate to move towards the inner wall of the mounting ring, the inner diameter of the mounting ring is increased, and the hot nozzle can be directly inserted into the mounting ring; when the hot nozzle is inserted into the mounting ring, the first push block is released, the first push block is pushed to move downwards for a certain distance under the action of the connecting spring, the first push block drives the second connecting rod to move, the fixed spring pushes the two movable blocks connected with the fixed plate to be close to each other, the two fixed blocks move to drive the first connecting rod to rotate, the first connecting rod pushes the fixed plate to move towards the middle of the mounting ring, so that the fixed plate is pressed on the side wall of the hot nozzle, the hot nozzle is fixed, the hot nozzle cannot easily fall out of the mounting ring, and the hot nozzle is protected; under the fixed plate effect, make the heat chew and can't rotate easily, guarantee the cooperation effect of second limiting plate and annular, promote the heat and chew the connection effect with first through-hole.
A fifth movable cavity 16 is arranged on the side wall of the first movable cavity, a supporting block 17 is arranged in the fifth movable cavity, an eighth movable groove 161 is arranged at the top of the fifth movable cavity 16, a second pushing block 171 matched with the eighth movable groove 161 is arranged on the supporting block 17, and a fixed frame 15 matched with the second pushing block 171 is arranged on the flow distribution plate 1; the fixing frame is provided with a fixing hole matched with the second push block; a third connecting rod 152 is arranged at the bottom of the fixed frame, a seventh movable cavity is arranged at the top of the flow distribution plate, the third connecting rod penetrates through the seventh movable cavity, a fifth limiting plate 153 is arranged at the bottom end of the third connecting rod, and a third return spring 154 is arranged on the fifth limiting plate; when the hot runner system is transported, the fixed frame is pulled upwards, the second push block is separated from the fixed hole, the second push block is pushed, the second push block drives the supporting block to enter the fifth movable cavity, the first limiting plate drops downwards after losing the supporting force, the main injection nozzle enters the second through hole, and the main injection nozzle is prevented from being damaged in the transporting process; after the hot runner system is conveyed to a required position, the fixed frame and the main injection nozzle are pushed upwards, the supporting block is pushed towards the first movable cavity to be positioned at the bottom of the first limiting plate, the fixed frame is released, the second pushing block is inserted into the fixed hole and is fixed, and the main injection nozzle is in a rising state so as to be connected with a discharge port of the injection molding machine.
The top of the main injection nozzle is provided with a third groove 21, the inner wall of the third groove is provided with a third connecting groove 211, and the main injection nozzle is more easily pulled out when being positioned in the second through hole under the arrangement of the third groove and the third connecting groove, so that the operation difficulty of the main injection nozzle is reduced.
A cavity is formed in the flow distribution plate 1, a frame body 5 is arranged in the cavity, a fixing ring 51 is arranged in the frame body 5, the fixing ring 51 is made of elastic materials, a seventh through hole is formed in the side wall of the frame body 5, a fifth push rod 52 penetrates through the seventh through hole, a third push plate 521 is arranged at one end of the fifth push rod 52, and a second return spring 522 is arranged on the third push plate 521; a sixth movable cavity is arranged at the top of the cavity, a baffle 120 is arranged in the sixth movable cavity, a ninth movable groove 130 is arranged on the side wall of the sixth movable cavity, and a third push block 1201 matched with the ninth movable groove 130 is arranged on the baffle 120; when the hot nozzle needs to be replaced during use, the main flow channel is heated, the plastic at the hot nozzle is melted, the baffle plate is pushed upwards, the frame body is taken out of the cavity, the fixing ring is sleeved at the bottom of the hot nozzle, the fifth push rod is pushed towards the fixing ring, the fixing ring is pushed to deform under the action of the fifth push rod, the hot nozzle is operated by the fixing ring, and the damage to operators caused by overhigh temperature of the hot nozzle is avoided; the fixing ring is arranged in the cavity, so that a special searching tool is not needed to operate the hot nozzle, and the replacement operation of the hot nozzle is more convenient; the diameter of the fixing ring is controlled by the fifth push rod, so that the fixing ring is more easily matched with the hot nozzle, and the movable hot nozzle can be moved in various ways.
The flow distribution plate is provided with an installation cavity, an installation box 13 is arranged in the installation cavity, the heating assembly is arranged in the installation box, the top of the installation cavity is provided with a through cavity, a cover plate 14 is arranged in the through cavity, the cover plate plays a role in protecting components in the installation box, and under the arrangement of the installation box and the cover plate, the heating assembly can be conveniently taken down from the flow distribution plate to be maintained, so that the maintenance difficulty of the hot runner assembly is reduced; the heating assembly is a heating assembly commonly used in hot runner systems in the prior art.
The attached drawing of this application is the schematic view only, and the quantity can be set up according to actual need to the heat, and hot runner system's other structures are the same with the hot runner system structure among the prior art.
Claims (1)
1. The utility model provides a hot runner system for moulding plastics, includes flow distribution plate (1), locates the main shooting at flow distribution plate (1) top is chewed (2) and is located a plurality of heat of flow distribution plate (1) bottom are chewed (3), be equipped with sprue (11) on flow distribution plate (1), sprue (11) bottom be equipped with a plurality ofly with heat chew the communicating first through-hole of (3), its characterized in that: a second through hole is formed in the top of the flow distribution plate (1), a first movable cavity (16) is formed in the inner wall of the second through hole, a first limiting plate (22) matched with the first movable cavity (16) is arranged on the side wall of the main injection nozzle (2), a first movable groove (12) is formed in the bottom of the flow distribution plate (1), an installation ring (4) is rotatably connected in the first movable groove (12), and the hot nozzle (3) penetrates through the installation ring (4);
a first connecting groove is formed in the inner wall of the first movable groove (12), a connecting shaft (412) matched with the first connecting groove is arranged on the side wall of the mounting ring (4), a second limiting plate (32) is arranged at the top of the hot nozzle (3), an annular groove (19) is formed in the inner wall of the first through hole, and a first through groove matched with the second limiting plate (32) is formed in the bottom of the annular groove (19); a third limiting plate (31) is arranged on the side wall of the hot nozzle (3), and a sealing ring component matched with the third limiting plate (31) is arranged on the mounting ring (4);
the side wall of the mounting ring (4) is provided with a connecting block (41), the connecting shaft (412) is arranged on the side wall of the connecting block (41), the connecting block (41) is provided with a second movable groove (411), the sealing ring assembly comprises a first sealing ring (44) arranged in the second movable groove (411), a second sealing ring (45) arranged on the first sealing ring (44) and a third sealing ring (46) arranged on the second sealing ring (45), the first sealing ring (44) is provided with a second movable cavity, the second sealing ring (45) is provided with a third movable cavity, the second sealing ring (45) is arranged in the second movable cavity in a penetrating manner, and the third sealing ring (46) is arranged in the third movable cavity in a penetrating manner;
a second connecting groove matched with the third sealing ring (46) is formed in the top of the first movable groove (12), and a fixing plate (461) matched with the third limiting plate (31) is arranged on the inner wall of the third sealing ring (46); a third through hole is formed in the bottom of the second movable cavity, a fourth through hole is formed in the bottom of the third movable cavity, a first push rod (441) penetrates through the third through hole, a second push rod (451) penetrates through the fourth through hole, and a third push rod (1407) matched with the first push rod (441) is arranged at the bottom of the flow distribution plate (1);
the bottom of the flow distribution plate (1) is provided with a mounting block (140), the mounting block (140) is provided with a third movable cavity (1401), a movable plate (1403) is arranged in the third movable cavity (1401), the movable plate (1403) is provided with a first supporting spring (1406), the top of the first supporting spring (1406) is provided with a first connecting plate (14071), a third push rod (1407) is arranged on the first connecting plate (14071), the bottom of the second movable groove is provided with a fifth through hole matched with the third push rod (1407), the third push rod (1407) is provided with a lug (14072), the bottom of the first sealing ring (44) is provided with a first groove matched with the lug (14072), and the inner wall of the second movable groove (411) is provided with a second supporting spring (413);
a limiting block is arranged on the movable plate (1403), a limiting rod (1408) is arranged on the inner wall of the third movable cavity (1401), a fourth push rod (1404) is arranged at the bottom of the third push rod (1407), a sixth through hole matched with the fourth push rod (1404) is arranged on the movable plate (1403), a first push plate (1405) is arranged at the bottom of the fourth push rod (1404), and a third movable groove (1402) matched with the fourth push rod (1404) is arranged at the bottom of the third movable cavity (1401); a transmission plate (110) matched with the first sealing ring (44) is arranged on the flow distribution plate (1);
a fourth movable groove is formed in the flow distribution plate (1), the transmission plate (110) is arranged in the fourth movable groove, a sliding groove (160) is formed in the inner wall of the fourth movable groove, a sliding block matched with the sliding groove (160) is arranged on the side wall of the transmission plate (110), a first reset spring (1102) is arranged on the inner wall of the fourth movable groove, a fifth movable groove is formed in the transmission plate (110), a second push plate (1101) is rotatably connected in the fifth movable groove, and a second groove (150) matched with the second push plate (1101) is formed in the top of the fourth movable groove;
a fixing plate (43) is arranged in the mounting ring (4), heat insulation cotton is arranged on the inner wall of the fixing plate (43), a fourth movable cavity (42) is arranged on the mounting ring (4), a sixth movable groove is formed in the side wall of the fourth movable cavity (42), a movable block (432) is arranged in the fourth movable cavity, a first connecting rod (431) is movably connected to the movable block (432), the other end of the first connecting rod (431) is movably connected to the fixing plate (43), and the first connecting rod (431) penetrates through the sixth movable groove; a seventh movable groove is formed in the top of the fourth movable cavity (42), a connecting spring (472) is arranged on the mounting ring (4), a first push block (47) is arranged at the bottom end of the connecting spring (472), and the first push block (47) is connected with the movable block (432) through a second connecting rod (471);
a fifth movable cavity (16) is arranged on the side wall of the first movable cavity, a supporting block (17) is arranged in the fifth movable cavity, an eighth movable groove (161) is arranged at the top of the fifth movable cavity (16), a second pushing block (171) matched with the eighth movable groove (161) is arranged on the supporting block (17), and a fixed frame (15) matched with the second pushing block (171) is arranged on the flow distribution plate (1);
a cavity is formed in the flow distribution plate (1), a frame body (5) is arranged in the cavity, a fixing ring (51) is arranged in the frame body (5), the fixing ring (51) is made of elastic materials, a seventh through hole is formed in the side wall of the frame body (5), a fifth push rod (52) penetrates through the seventh through hole, a third push plate (521) is arranged at one end of the fifth push rod (52), and a second reset spring (522) is arranged on the third push plate (521); the cavity top is equipped with the sixth activity chamber, be equipped with baffle (120) in the sixth activity chamber, be equipped with ninth activity groove (130) on the sixth activity chamber lateral wall, be equipped with on baffle (120) with ninth activity groove (130) matched with third ejector pad (1201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010700594.2A CN111844646B (en) | 2020-07-20 | 2020-07-20 | Hot runner system for injection molding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010700594.2A CN111844646B (en) | 2020-07-20 | 2020-07-20 | Hot runner system for injection molding |
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| Publication Number | Publication Date |
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| CN111844646A CN111844646A (en) | 2020-10-30 |
| CN111844646B true CN111844646B (en) | 2021-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010700594.2A Active CN111844646B (en) | 2020-07-20 | 2020-07-20 | Hot runner system for injection molding |
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| JP3007332B1 (en) * | 1998-09-02 | 2000-02-07 | 洋左右 前嶋 | Cloth folding device |
| DE202008002757U1 (en) * | 2008-02-27 | 2008-04-24 | Ft-Fertigungstechnik Gmbh | Needle valve nozzle for introducing liquid plastic into an injection mold |
| CN101758603A (en) * | 2009-08-27 | 2010-06-30 | 东莞市热恒注塑科技有限公司 | Corner type hot nozzle of hot runner system for large injection mold |
| CN201841644U (en) * | 2010-11-08 | 2011-05-25 | 柳道万和(苏州)热流道系统有限公司 | Improved structure of hot runner system |
| CN204429141U (en) * | 2014-11-26 | 2015-07-01 | 天津单渡科技开发有限公司 | A kind of paint can with agitating function |
| CN209616234U (en) * | 2019-01-30 | 2019-11-12 | 英柯欧模具(上海)有限公司 | A kind of exchanging structure applied to the oblique mouth system of large size on injection mold |
| CN210651701U (en) * | 2019-08-09 | 2020-06-02 | 天津奥丽达森模具有限公司 | Hot runner assembly |
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2020
- 2020-07-20 CN CN202010700594.2A patent/CN111844646B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3007332B1 (en) * | 1998-09-02 | 2000-02-07 | 洋左右 前嶋 | Cloth folding device |
| DE202008002757U1 (en) * | 2008-02-27 | 2008-04-24 | Ft-Fertigungstechnik Gmbh | Needle valve nozzle for introducing liquid plastic into an injection mold |
| CN101758603A (en) * | 2009-08-27 | 2010-06-30 | 东莞市热恒注塑科技有限公司 | Corner type hot nozzle of hot runner system for large injection mold |
| CN201841644U (en) * | 2010-11-08 | 2011-05-25 | 柳道万和(苏州)热流道系统有限公司 | Improved structure of hot runner system |
| CN204429141U (en) * | 2014-11-26 | 2015-07-01 | 天津单渡科技开发有限公司 | A kind of paint can with agitating function |
| CN209616234U (en) * | 2019-01-30 | 2019-11-12 | 英柯欧模具(上海)有限公司 | A kind of exchanging structure applied to the oblique mouth system of large size on injection mold |
| CN210651701U (en) * | 2019-08-09 | 2020-06-02 | 天津奥丽达森模具有限公司 | Hot runner assembly |
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| Publication number | Publication date |
|---|---|
| CN111844646A (en) | 2020-10-30 |
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Denomination of invention: A Hot Runner System for Injection Molding Effective date of registration: 20231009 Granted publication date: 20210611 Pledgee: Agricultural Bank of China Limited Shaoxing Shangyu sub branch Pledgor: ZHEJIANG SNAKE HOT RUNNER TECHNOLOGY CO.,LTD. Registration number: Y2023980060153 |