CN116586581A - High-speed injection structure of cold pressing chamber - Google Patents
High-speed injection structure of cold pressing chamber Download PDFInfo
- Publication number
- CN116586581A CN116586581A CN202310486301.9A CN202310486301A CN116586581A CN 116586581 A CN116586581 A CN 116586581A CN 202310486301 A CN202310486301 A CN 202310486301A CN 116586581 A CN116586581 A CN 116586581A
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- section
- air guide
- charging barrel
- conical
- guide channel
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- 238000002347 injection Methods 0.000 title claims abstract description 68
- 239000007924 injection Substances 0.000 title claims abstract description 68
- 238000003825 pressing Methods 0.000 title claims abstract description 21
- 238000005507 spraying Methods 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 239000000112 cooling gas Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 14
- 238000001746 injection moulding Methods 0.000 claims 3
- 230000007423 decrease Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 14
- 238000001816 cooling Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 11
- 230000009471 action Effects 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 230000007246 mechanism Effects 0.000 description 5
- 238000000926 separation method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/2015—Means for forcing the molten metal into the die
- B22D17/2023—Nozzles or shot sleeves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/08—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/2015—Means for forcing the molten metal into the die
- B22D17/203—Injection pistons
-
- 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
Abstract
The invention discloses a high-speed injection structure of a cold pressing chamber, which comprises a charging barrel and a plunger which is arranged in an injection cavity of the charging barrel in a sliding sealing manner, wherein a feeding hole is formed in the charging barrel and is connected with the injection cavity; the inside of the charging barrel is provided with a pressing and injecting inlay sleeve, and the pressing and injecting inlay sleeve consists of a charging section, a pressurizing section and a material spraying section along the material injecting direction; the feeding section is communicated with the injection cavity; the pressurizing section is provided with taper, and the material spraying end is used for injecting materials into a die cavity of the die; a conical air guide channel and a circular air guide channel are coaxially arranged in the charging barrel, and the conical air guide channel is communicated with the circular air guide channel; the pressurizing section is positioned inside the conical air guide channel, a conical spiral spring rod matched with the pressurizing section is sleeved outside the pressurizing section, and a check ring is sleeved outside the conical spiral spring rod. The invention is convenient for reducing the replacement and maintenance cost and improving the whole service life.
Description
Technical Field
The invention relates to the technical field of die casting machines, in particular to a high-speed injection structure of a cold pressing chamber.
Background
The die casting machine is used for hydraulically injecting molten metal into a die under the action of pressure to carry out cooling molding, and comprises a hot pressing chamber and a cold pressing chamber; the existing high-speed injection cold-pressing chamber is generally of an integrated structure with a molten metal pouring gate, and in the working process, the molten metal is continuously eroded to the position of the pouring gate, so that the position of the pouring gate is easy to damage, and the whole cold-pressing chamber is generally required to be replaced, so that the replacement cost is high; and the existing high-speed injection cold pressing chamber lacks cooling measures on the outer wall of the injection cavity in the use process, so that the temperature of the outer wall of the injection cavity is easily too high, and the service life is influenced.
Disclosure of Invention
The invention aims to provide a high-speed injection structure of a cold pressing chamber, which adopts a split structure, is convenient for replacing an erosion injection insert sleeve, and simultaneously realizes cooling of the injection insert sleeve and the outer wall of an injection cavity in the working process, thereby prolonging the service life.
In order to solve the technical problems, the invention provides the following technical scheme: the high-speed injection structure of the cold pressing chamber comprises a charging barrel and a plunger which is arranged in an injection cavity of the charging barrel in a sliding sealing manner, wherein a feeding hole is formed in the charging barrel and is connected with the injection cavity; the inside of the charging barrel is provided with a pressing and injecting inlay sleeve, and the pressing and injecting inlay sleeve consists of a charging section, a pressurizing section and a material spraying section along the material injecting direction; the feeding section is communicated with the injection cavity; the pressurizing section is provided with taper, and the material spraying end is used for injecting materials into a die cavity of the die; a conical air guide channel and a circular air guide channel are coaxially arranged in the charging barrel, and the conical air guide channel is communicated with the circular air guide channel; the pressurizing section is positioned in the conical air guide channel, a conical spiral spring rod matched with the pressurizing section is sleeved outside the pressurizing section, and a check ring is sleeved outside the conical spiral spring rod; the charging barrel is provided with a plurality of air inlet channels, the air inlet channels are used for introducing low-temperature cooling gas, and the air inlet channels are communicated with the conical air guide channels; and a plurality of exhaust runners are further arranged on the charging barrel and are communicated with the circular air guide runner.
Further, a mounting hole is coaxially arranged in the charging barrel, and the mounting hole is used for limiting the placement of the charging section; the circular air guide flow passage is arranged outside the mounting hole, and two ends of the mounting hole are respectively communicated with the injection cavity and the circular air guide flow passage.
Furthermore, a plurality of annular grooves are uniformly distributed in the tapered air guide flow channel along the axial direction of the tapered air guide flow channel.
Further, the diameter of the end face of the pressurizing section adjacent to the feeding section is larger than that of the end face of the pressurizing section adjacent to the spraying section, and the end face of the pressurizing section adjacent to the spraying section is larger than the outer diameter of the spraying section.
Further, one end of the charging barrel is coaxially provided with a limiting hole, and the limiting hole is communicated with one end of the conical air guide channel far away from the circular air guide channel; the inside of spacing hole has the support spacing ring through screw-thread fit, the support spacing ring cover is established in the outside of spouting the material section, and one end supports tightly on the one end terminal surface that the pressurization section is close to spouting the material section.
Further, the diameter of the inner cavity of the pressurizing section is gradually reduced along the material injecting direction.
Furthermore, the charging barrel is formed by splicing two symmetrical half-barrels, and the two half-barrels are fixedly connected through bolts.
Furthermore, the injection insert sleeve is formed by splicing two symmetrical half insert sleeves, and one end of the conical spiral spring rod is fixed on the outer wall of one half insert sleeve.
Furthermore, an air inlet pipe is respectively inserted into each air inlet flow passage.
Furthermore, an exhaust pipe is respectively inserted into each exhaust runner.
Compared with the prior art, the invention has the following beneficial effects.
1. The injection insert sleeve and the charging barrel adopt a split structure, and the injection insert sleeve can be detachably arranged inside the charging barrel, and meanwhile, the charging barrel can be detached, so that the injection insert sleeve is convenient to replace and mount, the whole device is prevented from being replaced after the injection insert sleeve is eroded, and the replacement and maintenance cost is greatly saved.
2. In the working process, the low-temperature cooling gas is introduced, and under the action of the grooves and the outer walls of the conical spiral spring rods, the conical air guide flow channel is blocked and baffled for a plurality of times, so that the impact of the low-temperature cooling gas on the outer walls of the pressurizing sections is conveniently improved, and the contact effect is improved; meanwhile, the check ring also plays a role in preventing turbulence, and low-temperature cooling air flow impacts the check ring to cause the stretching of the conical spiral spring rod, so that the tight splicing effect of the two symmetrical half-inlaid sleeves is improved; in addition, the low-temperature cooling gas flowing through the inside of the circular air guide channel has cold pressing and cooling effects on the outer wall of the working part of the injection cavity, so that the phenomenon that the temperature of the cavity wall and the inner wall of the injection insert sleeve is increased due to friction is prevented, and the service life of the whole device is prolonged.
3. Through dismantling the separation with two half-cylinder bodies, conveniently dismantle the separation to two half-inserts to be convenient for feed cylinder, press and penetrate the clearance of inserting the inside of cover.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
FIG. 1 is a schematic diagram of the cooperation of the whole and the fixed mold of the invention.
Fig. 2 is a schematic diagram of the overall structure of the present invention.
FIG. 3 is a schematic view of the installation of the injection sleeve, conical helical spring rod of the present invention.
Fig. 4 is a schematic view of the structure of the half insert of the present invention.
Fig. 5 is a schematic view of the engagement of the conical helical spring rod with the injection sleeve of the present invention.
Fig. 6 is a schematic illustration of the connection of a conical helical spring rod of the present invention to one of the injection inserts.
In the figure: 1. a charging barrel; 101. a feed inlet; 102. a shot cavity; 103. a tapered air guide channel; 104. a circular air guide channel; 1041. an annular groove; 105. an exhaust runner; 106. an intake runner; 107. a mounting hole; 108. a limiting hole; 11. a half cylinder; 2. injecting the insert sleeve; 201. a feed section; 202. a boost section; 203. a spraying section; 21. a half-inlaid sleeve; 3. a conical helical spring rod; 31. a retainer ring; 4. supporting a limiting ring; 5. an air inlet pipe; 6. an exhaust pipe; 7. a plunger; 8. a fixed mold; 9. a movable mold; 10. and a mold cavity.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, the present invention provides the following technical solutions: the high-speed injection structure of the cold pressing chamber comprises a charging barrel 1 and a plunger 7 which is arranged in an injection cavity 102 of the charging barrel 1 in a sliding sealing manner, wherein the plunger 7 is used for being connected with a driving mechanism (not shown in the figure), the driving mechanism can adopt an air cylinder, a hydraulic cylinder and the like, and the plunger 7 is driven to move along the injection cavity 102 under the action of the driving mechanism; the feed inlet 101 which is communicated with the injection cavity 102 is arranged on the feed cylinder 1, and the feed inlet 101 is used for being matched with an external feed mechanism (not shown in the figure) so as to add molten metal into the injection cavity 102.
The inside of the charging barrel 1 is detachably provided with a pressing and injecting insert sleeve 2, the pressing and injecting insert sleeve 2 consists of a charging section 201, a pressurizing section 202 and a spraying section 203 along the material injecting direction, the length of the pressurizing section 202 is greater than that of the charging section 201, the length of the spraying section 203 is far less than that of the pressurizing section 202, and the charging section 201 and the spraying section 203 are of hollow cylinder structures; the inner cavity of the feeding section 201 corresponds to the injection cavity 102 in position and has the same diameter, and one end of the feeding section 201, which is far away from the pressurizing section 202, is connected with the end of the injection cavity 102, so that the feeding section 201 is communicated with the injection cavity 102; the injection section 203 is used for injecting materials into a die cavity 10 formed between the fixed die 8 and the movable die 9, namely, under the driving action of the driving mechanism, the plunger 7 is pushed to push molten metal in the injection cavity 102 into the injection insert 2, and then the molten metal is injected into the die cavity 10 from the inside of the injection insert 2 at a high speed.
The pressurizing section 202 is used for pressurizing molten metal flowing through the interior of the pressurizing section 202, the pressurizing section 202 is integrally provided with a taper, namely, the pressurizing section 202 is integrally of a hollow round platform structure, the inner cavity of the pressurizing section 202 is of a round platform hole structure, the outer diameter and the inner cavity diameter of the pressurizing section 202 are gradually reduced along the material injecting direction, the maximum diameter of the inner cavity of the pressurizing section 202 is consistent with the inner cavity diameter of the feeding section 201, the minimum diameter of the inner cavity of the pressurizing section 202 is consistent with the inner cavity diameter of the material injecting section 203, namely, the pressurizing section 202 carries out pressurizing molten metal flow velocity through the gradually reduced inner cavity; the maximum outer diameter of the pressurizing section 202 is equal to the outer diameter of the feeding section 201, the minimum outer diameter of the pressurizing section 202 is larger than the outer diameter of the spraying section 203, namely, the diameter of the end face of the pressurizing section 202 adjacent to the feeding section 201 is larger than the diameter of the end face of the pressurizing section 202 adjacent to the spraying section 203, and the end face of the pressurizing section 202 adjacent to the spraying section 203 is larger than the outer diameter of the spraying section 203.
A conical air guide channel 103 and a circular air guide channel 104 are coaxially arranged in the charging barrel 1, and the conical air guide channel 103 is communicated with the circular air guide channel 104; the inside of feed cylinder 1 still is provided with mounting hole 107 coaxially, and mounting hole 107 is used for the cooperation with feeding section 201, and feeding section 201 is spacing in mounting hole 107, and the both ends of mounting hole 107 communicate respectively and penetrate chamber 102 and ring air guide runner 104, and ring air guide runner 104 locates the mounting hole 107 outside.
One end of the circular air guide channel 104 is close to the feeding hole 101, and the circular air guide channel 104 is coated outside the mounting hole 107 and the injection cavity 102 between the feeding hole 101 and the mounting hole 107.
The pressurizing section 202 is positioned in the conical air guide channel 103, the taper of the pressurizing section 202 is consistent with that of the conical air guide channel 103, a conical spiral spring rod 3 matched with the pressurizing section 202 is sleeved outside the pressurizing section 202, a check ring 31 is sleeved outside the conical spiral spring rod 3, and the check ring 31 is arranged at one end, close to the feeding section 201, of the conical spiral spring rod 3; as shown in fig. 3, in the initial non-extended state, the conical spiral spring rod 3 is coaxially sleeved outside the pressurizing section 202, and at this time, the retainer 31 is located inside the conical air guide channel 103, the outer diameter of the retainer 31 is smaller than the maximum inner cavity diameter of the conical air guide channel 103, and preferably, a small hole is penetrated through the retainer 31.
The charging barrel 1 is provided with a plurality of air inlet channels 106, and the air inlet channels 106 are communicated with the conical air guide channels 103; as shown in fig. 2, the air inlet channels 106 may be uniformly distributed on the upper portion of the cartridge 1 along the circumference of the axis of the cartridge 1; each air inlet flow passage 106 is internally provided with an air inlet pipe 5, all the air inlet pipes 5 are communicated with an external low-temperature cold air source and are used for introducing low-temperature cooling air with certain pressure into the air inlet flow passages 106, so that the low-temperature cooling air is introduced into the conical air guide flow passages 103, and one end of each air inlet flow passage 106 is close to a small-diameter section of the conical air guide flow passage 103.
The charging barrel 1 is also provided with a plurality of exhaust runners 105, the number of the exhaust runners 105 can be more than that of the air inlet runners 106, and each exhaust runner 105 is internally provided with an exhaust pipe 6 in an inserted mode; as shown in fig. 2, the exhaust pipes 6 are uniformly distributed along the circumference of the axis of the cylinder 1, the exhaust runner 105 is close to one end of the circular air guide runner 104 adjacent to the feed inlet 101, the exhaust runner 105 and the exhaust pipe 6 are used for discharging low-temperature cooling gas, and the exhaust pipe 6 can be recycled with the air inlet pipe 5 through an external device, which is the prior art, so that redundant description is omitted.
A limiting hole 108 is coaxially arranged at one end of the charging barrel 1 adjacent to the injection insert sleeve 2, and the limiting hole 108 is communicated with one end of the conical air guide channel 103 far away from the circular air guide channel 104; the inside of the limiting hole 108 is provided with a supporting limiting ring 4 in a threaded fit manner, the supporting limiting ring 4 is sleeved outside the spraying section 203, and one end of the supporting limiting ring is abutted against the end face of one end, close to the spraying section 203, of the pressurizing section 202; the supporting and limiting ring 4 is tightly sleeved outside the material spraying section 203, and the supporting and limiting ring 4 is in sealing connection with the limiting hole 108 and the material spraying section 203.
The injection insert 2 is formed by splicing two symmetrical half inserts 21, and one end of the conical spiral spring rod 3 is fixed on the outer wall of one half insert 21.
The inside of the conical air guide channel 103 is uniformly provided with a plurality of annular grooves 1041 along the axial direction of the conical air guide channel 103, when low-temperature cooling gas is introduced into the conical air guide channel 103, the low-temperature cooling gas sequentially passes through the conical air guide channel 103 and the annular air guide channel 104 and is discharged from the exhaust channel 105 and the exhaust pipe 6, and the low-temperature cooling gas realizes the multiple blocking and baffling effects on the conical air guide channel 103 under the action of the grooves and the outer wall of the conical spiral spring rod 3 in the process of flowing through the conical air guide channel 103, so that the low-temperature cooling gas is conveniently lifted to impact the outer wall of the pressurizing section 202, the contact effect is promoted, and the cooling effect on the injection insert 2 is promoted; meanwhile, the check ring 31 also plays a role in preventing turbulence, the low-temperature cooling air flow impacts the check ring 31, the check ring 31 has a stretching effect on the conical spiral spring rod 3 under the elastic effect of the conical spiral spring rod 3, and in the stretching process of the conical spiral spring rod 3, a compacting effect is added on the outer wall of the pressurizing section 202, so that the tight splicing of the two symmetrical half-inserts 21 is realized.
Because the circular air guide channel 104 is coated outside the injection cavity 102 between the mounting hole 107, the feeding hole 101 and the mounting hole 107, the low-temperature cooling gas flowing through the inside of the circular air guide channel 104 has cold-pressing cooling effect on the outer wall of the part of the feeding barrel 1 attached to the outside of the feeding section 201 and the outer wall of the working part of the injection cavity 102.
The charging barrel 1 is formed by splicing two symmetrical half-barrels 11, the two half-barrels 11 are fixedly connected through bolts, and the charging barrel 1 formed by splicing the two symmetrical half-barrels 11 is detachably fixed on the fixed die 8, and particularly can be detachably mounted through bolts, screws and other fasteners.
Working principle: in the process of injecting molten metal liquid to the die cavity 10 at a high speed, low-temperature cooling gas is introduced through the air inlet pipe 5, and in the process of flowing through the conical air guide channel 103, the low-temperature cooling gas realizes multiple blocking and baffling effects on the conical air guide channel 103 under the action of the grooves and the outer wall of the conical spiral spring rod 3, so that the impact of the low-temperature cooling gas on the outer wall of the pressurizing section 202 is conveniently improved, the contact effect is improved, and the cooling effect on the injection insert 2 is improved; meanwhile, the check ring 31 also plays a role in preventing turbulence, the low-temperature cooling air flow impacts the check ring 31 to cause the conical spiral spring rod 3 to stretch, and in the process of stretching the conical spiral spring rod 3, the outer wall of the pressurizing section 202 is compressed, so that the two symmetrical half-insert sleeves 21 are tightly spliced; in addition, the low-temperature cooling gas flowing through the inside of the circular air guide channel 104 has cold pressing and cooling effects on the outer wall of the feed cylinder 1 part attached to the outside of the feed section 201 and the outer wall of the working part of the injection cavity 102, and prevents the phenomenon that the temperature of the cavity wall of the injection cavity 102 and the inner wall of the injection insert sleeve 2 is increased due to friction, thereby being beneficial to prolonging the service life.
In addition, because feed cylinder 1 is spliced by two symmetrical semi-cylinder bodies 11 and is formed, two semi-cylinder bodies 11 are fixed through bolted connection, and feed cylinder 1 that two symmetrical semi-cylinder bodies 11 splice to form can dismantle fixedly on cover half 8, press and penetrate inlay 2 and splice by two symmetrical semi-inlay 21 and constitute, consequently, through dismantling feed cylinder 1, support spacing ring 4 (for the convenience support spacing ring 4 is followed spacing hole 108 and is screwed out, be provided with hexagonal prism structure in support spacing ring 4 one end, make things convenient for cooperation instrument rotation support spacing ring 4), and realize that two semi-cylinder bodies 11 dismantle the separation after, conveniently dismantle two semi-inlay 21 and separate, thereby be convenient for feed cylinder 1, press and penetrate inlay 2 inside clearance, also conveniently press and penetrate in time change after inlay 2 is washed simultaneously, avoid changing whole pressure room, save the cost.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The high-speed injection structure of the cold pressing chamber comprises a charging barrel (1) and a plunger (7) which is arranged in an injection cavity (102) of the charging barrel (1) in a sliding sealing manner, wherein a feeding hole (101) is formed in the charging barrel (1), and the feeding hole (101) is connected with the injection cavity (102); the method is characterized in that:
the injection molding machine is characterized in that an injection molding insert sleeve (2) is arranged in the charging barrel (1), and the injection molding insert sleeve (2) consists of a feeding section (201), a pressurizing section (202) and a spraying section (203) along the injection direction;
the feeding section (201) is communicated with the injection cavity (102);
the pressurizing section (202) is provided with a taper, and the material spraying end is used for injecting materials into a die cavity (10) of the die;
a conical air guide channel (103) and a circular air guide channel (104) are coaxially arranged in the charging barrel (1), and the conical air guide channel (103) is communicated with the circular air guide channel (104);
the pressurizing section (202) is positioned in the conical air guide flow channel (103), a conical spiral spring rod (3) matched with the pressurizing section (202) is sleeved outside the pressurizing section, and a check ring (31) is sleeved outside the conical spiral spring rod (3);
a plurality of air inlet channels (106) are arranged on the charging barrel (1), the air inlet channels (106) are used for introducing low-temperature cooling gas, and the air inlet channels (106) are communicated with the conical air guide channels (103);
the charging barrel (1) is further provided with a plurality of exhaust runners (105), and the exhaust runners (105) are communicated with the circular air guide runner (104).
2. A cold-chamber high-speed injection structure according to claim 1, characterized in that: the inside of the charging barrel (1) is coaxially provided with a mounting hole (107), and the mounting hole (107) is used for limiting the placement of the charging section (201);
the circular air guide flow passage (104) is arranged outside the mounting hole (107), and two ends of the mounting hole (107) are respectively communicated with the injection cavity (102) and the circular air guide flow passage (104).
3. A cold-chamber high-speed injection structure according to claim 1, characterized in that: the inside of the conical air guide flow channel (103) is uniformly distributed with a plurality of annular grooves (1041) along the axial direction of the conical air guide flow channel (103).
4. A cold-chamber high-speed injection structure according to claim 1, characterized in that: the diameter of the end face of the pressurizing section (202) adjacent to the feeding section (201) is larger than that of the end face of the pressurizing section (202) adjacent to the spraying section (203), and the end face of the pressurizing section (202) adjacent to the spraying section (203) is larger than the outer diameter of the spraying section (203).
5. A cold-chamber high-speed injection structure according to claim 4, wherein: one end of the charging barrel (1) is coaxially provided with a limiting hole (108), and the limiting hole (108) is communicated with one end, far away from the circular air guide channel (104), of the conical air guide channel (103);
the inside of spacing hole (108) has support spacing ring (4) through screw-thread fit, support spacing ring (4) cover is established in the outside of spouting material section (203), and one end supports tightly on the one end terminal surface that supercharged section (202) is close to spouting material section (203).
6. A cold-chamber high-speed injection structure according to claim 1, characterized in that: the diameter of the inner cavity of the pressurizing section (202) gradually decreases along the material injecting direction.
7. A cold-chamber high-speed injection structure according to claim 1, characterized in that: the charging barrel (1) is formed by splicing two symmetrical half-barrels (11), and the two half-barrels (11) are fixedly connected through bolts.
8. A cold-chamber high-speed injection structure according to claim 1, characterized in that: the injection insert sleeve (2) is formed by splicing two symmetrical half insert sleeves (21), and one end of the conical spiral spring rod (3) is fixed on the outer wall of one half insert sleeve (21).
9. A cold-chamber high-speed injection structure according to claim 1, characterized in that: an air inlet pipe (5) is respectively inserted into each air inlet flow passage (106).
10. A cold-chamber high-speed injection structure according to claim 1, characterized in that: an exhaust pipe (6) is respectively inserted into each exhaust runner (105).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310486301.9A CN116586581B (en) | 2023-05-04 | 2023-05-04 | High-speed injection structure of cold pressing chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310486301.9A CN116586581B (en) | 2023-05-04 | 2023-05-04 | High-speed injection structure of cold pressing chamber |
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| Publication Number | Publication Date |
|---|---|
| CN116586581A true CN116586581A (en) | 2023-08-15 |
| CN116586581B CN116586581B (en) | 2023-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310486301.9A Active CN116586581B (en) | 2023-05-04 | 2023-05-04 | High-speed injection structure of cold pressing chamber |
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| CN105855504A (en) * | 2016-05-25 | 2016-08-17 | 蚌埠市隆兴压铸机厂 | Die casting machine charging barrel good in cooling effect |
| CN105855501A (en) * | 2016-05-25 | 2016-08-17 | 蚌埠市隆兴压铸机厂 | Die casting machine charging barrel with cooling device |
| US9757795B1 (en) * | 2012-03-30 | 2017-09-12 | Brunswick Corporation | Method and apparatus for avoiding erosion in a high pressure die casting hot sleeve for use with low iron aluminum silicon alloys |
| CN211661060U (en) * | 2019-11-28 | 2020-10-13 | 刘兴军 | Semi-solid forming equipment for aluminum-magnesium-zinc non-ferrous metal particles |
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2023
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| EP0936010A1 (en) * | 1998-02-12 | 1999-08-18 | Didier-Werke Ag | Method and apparatus for pressure casting metals |
| US9757795B1 (en) * | 2012-03-30 | 2017-09-12 | Brunswick Corporation | Method and apparatus for avoiding erosion in a high pressure die casting hot sleeve for use with low iron aluminum silicon alloys |
| WO2015076749A1 (en) * | 2013-11-25 | 2015-05-28 | Pratt & Whitney Services Pte Ltd. | Die casting machine shot sleeve with pour liner |
| CN105855504A (en) * | 2016-05-25 | 2016-08-17 | 蚌埠市隆兴压铸机厂 | Die casting machine charging barrel good in cooling effect |
| CN105855501A (en) * | 2016-05-25 | 2016-08-17 | 蚌埠市隆兴压铸机厂 | Die casting machine charging barrel with cooling device |
| CN211661060U (en) * | 2019-11-28 | 2020-10-13 | 刘兴军 | Semi-solid forming equipment for aluminum-magnesium-zinc non-ferrous metal particles |
| CN115519089A (en) * | 2022-09-20 | 2022-12-27 | 朱琳 | High-fluidity injection molding machine for metal powder melting |
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| CN116586581B (en) | 2023-11-07 |
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