CN200984635Y - Pipe type melting material feeding device without protective gas for cold chamber die casting machine - Google Patents
Pipe type melting material feeding device without protective gas for cold chamber die casting machine Download PDFInfo
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- CN200984635Y CN200984635Y CN 200620015127 CN200620015127U CN200984635Y CN 200984635 Y CN200984635 Y CN 200984635Y CN 200620015127 CN200620015127 CN 200620015127 CN 200620015127 U CN200620015127 U CN 200620015127U CN 200984635 Y CN200984635 Y CN 200984635Y
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Abstract
The utility model relates to a protective gas unwanted ducted melt feeding device for cold-chamber die casting machine which comprises a molten material barrel having a feed inlet and a feed outlet, a feeding mechanism arranged at the rear of the molten material along the feed direction adapted for delivering the charge bar to the molten material barrel. The molten material barrel comprises a heat insulating area, a heating area and a cooling area sequentially arranged along the feed direction. The molten material barrel further comprises a deliver tube unit having one end connected to the feed inlet of the molten material barrel and the other end delivering the molten material into a feed inlet barrel of the die casting machine. The whole tube lumen or partial tube lumen of the deliver tube unit is higher than the barrel lumen of the feed outlet of the molten material barrel along the vertical direction. The utility model do not use protective gas when in work, which is energy saving and environmental protecting, is benefit for discharging the residual gas in the molten material barrel and reducing the gas hole existing possibility in the products; the utility model has accurate injection measurement and little impelling resisting force and a the molten material barrel with wearproof wall.
Description
[technical field]
The utility model relates to a kind of cold-chamber die casting machine with melting feeding device, and especially a kind of cold-chamber die casting machine that need not protective gas melts feeding device with duct type.
[background technology]
Diecast magnesium alloy adopts special-purpose magnesium-alloy smelting furnace mostly on cold house's machine die casting machine; such special furnace not only complex structure, cost an arm and a leg, energy consumption is big, use inconvenient maintenance; and because magnesium alloy easy oxidation of when fusing and burning; must use protective gas to isolate in fusion process usefulness with outside air; but protective gas may be sneaked into and be produced pore in the melt, and these protective gas also are disadvantageous to environmental protection.
[utility model content]
Technical problem to be solved in the utility model provides a kind of cold-chamber die casting machine that need not protective gas and melts feeding device with duct type.
For solving the problems of the technologies described above, the utility model provides a kind of cold-chamber die casting machine to melt feeding device with the duct type that need not protective gas, comprise the melt tube that is provided with charging aperture and discharging opening, be positioned at melt tube rear and charge bar can be sent into the feed mechanism of melt tube that the melt tube comprises heat preservation zone, the thermal treatment zone and the cooling area that distributes from front to back successively along feedstock direction along feed direction; Comprise that also an end is communicated with melt tube discharging opening, the other end can be imported melt the conveying pipeline assembly that die casting machine is gone into barrel, the tube chamber of this conveying pipeline assembly or part tube chamber are higher than the tube chamber of melt tube discharging opening at vertical direction.
According to melt temperature subregion, the melt tube comprises heat preservation zone, the thermal treatment zone and the cooling area that distributes from front to back successively along feedstock direction; Fusing heating element heater (can adopt electrical heating elements) can be set on the melt tube of the thermal treatment zone, insulation heating element heater (can adopt electrical heating elements) can be set on the heat preservation zone melt tube, cooling system (can adopt water-cooling circulating system) can be set on the cooling area barrel.In heat preservation zone, it is mobile that melt keeps; At cooling area, the magnesium alloy bar that is pushed into keeps temperature can sharply not raise herein, can make the backflow melt remain on semisolid again simultaneously, forms good sealing.During work, insert melt tube charging aperture with an end of the suitable charge bar of the charging aperture radial dimension of melt tube, feed mechanism is sent charge bar into the melt tube, and the melt tube inner chamber of the thermal treatment zone forms corresponding temperature field so that charge bar is fused into melt.Cooling area is not melted the charge bar of close charging aperture one side in the melt tube too early, the melt that the place ahead has been melted from the gap between charge bar and the melt tube when charging aperture refluxes, cooling area makes the cooling of backflow melt and loses flowability or curing again, and these lose flowability or the backflow melt of curing again seals the gap between charge bar and the melt tube and make the melt and the space outerpace isolation of having melted from charging aperture one side; The conveying pipeline assembly is set and makes the tube chamber of conveying pipeline assembly or part tube chamber be in the purpose that vertical direction is higher than melt tube discharging opening, after finishing a shot, one section melt is still arranged in the conveying pipeline assembly, the hydraulic pressure difference that exists between the melt in this section melt and the melt tube makes the melt in the melt tube isolate from discharging opening one end and space outerpace, simultaneously this hydraulic pressure difference have an eliminating that is beneficial to residual gas in the melt tube, reduce the possibility that occurs pore in the product.Can be as required on the melt tube rationally the control thermal treatment zone, cooling area the two length and thermograde so that the melt tube inner chamber forms suitable temperature field.Can charge bar be sent into the length of melt tube according to the required melt amount control of per injection feed mechanism, when charge bar was admitted to the melt tube, charge bar also pushed die casting machine from the melt tube through the conveying pipeline assembly with melt and goes into barrel at every turn.
Improve as the utility model, the tube chamber with die casting machine is gone into the end that barrel is connected that makes the conveying pipeline assembly is lower than the peak of conveying pipeline assembly tube chamber at vertical direction, when finishing a shot like this, since the melt in the effect melt tube of gravity with enter die casting machine and go into the melt of barrel and disconnect at conveying pipeline assembly tube chamber peak place, be convenient to the accurate measurement of per injection amount.
Another improves as the utility model, makes melt tube cooling area towards the radial dimension of the tube chamber of discharging opening part radial dimension greater than the charging aperture inner chamber.Purpose is, temperature by reasonable control cooling area makes cooling area keep higher relatively temperature towards the part of discharging opening, the charge bar or the backflow melt that are in this part can keep softening state, thereby reduce the friction between charge bar or backflow melt and the barrel, and then reduce the wearing and tearing and the propelling resistance of barrel; Higher may the making of cooling area temperature enters this regional charge bar barred body expansion outside the melt tube, make melt tube cooling area towards the radial dimension of the tube chamber of discharging opening part radial dimension greater than the charging aperture inner chamber, the radial dimension of melt tube cooling area before the tube chamber of discharging opening part radial dimension also enters charging aperture greater than charge bar, such design has been equivalent to provide a ring cavity that can hold barred body expansion back volume increase, thereby has further strengthened the sealing effectiveness of melt tube and be convenient to charge bar advancing from charging aperture one end.
At cooling area, the difference of melt tube between the radial dimension of the tube chamber radial dimension of discharging opening part and charging aperture inner chamber is preferably 0.5-5mm.
At the rear of cooling area, cooling system can be set on the melt tube form the cooling zone along feed direction.Purpose is to prevent not enter as yet the softening and rigidity deficiency of the charge bar Yin Wendu of melt tube too high (the metal charge bar has good heat-conducting, and the charge bar that the high temperature melt in the melt tube can make the charge bar of rear cooling area and not enter the melt tube as yet heats up), is unfavorable for advancing; Peripheral work condition environment can also be avoided worsening because of the charge bar temperature that do not enter the melt tube as yet is too high in the cooling zone.
Can the high-temperature wearable liner be set to reduce wear at melt tube inwall.
For improving the thermal efficiency, prevent that heat scatters and disappears, and can be provided with heat-insulation layer on the top layer of melt tube.
Be the temperature in the convenient control melt tube, the relevant position on the melt tube is provided with thermocouple as required.
Preferred version of the present utility model is: comprise control module; Heating element heater is the electrical heating cover; Feed mechanism comprises that fixed guide, active card are enclosed within forward block on the fixed guide, drive power set that forward block moves along fixed guide, are connected the mechanical arm assembly that can clamp charge bar on the forward block; Be provided with charge bar support guide spare at charging aperture along the rear of feedstock direction; Control module electrically connects with electrical heating cover, thermocouple, power set, mechanical arm assembly, cooling system, cooling system respectively; Charging aperture is provided with ring property rubber lining mouthful (sealing) between charging aperture and charge bar outer surface; The melt tube thermal treatment zone is identical with the inner chamber radial dimension of the two adjacent part of cooling area.
The utility model not only is applicable to the fusing feed of magnesium alloy, also is applicable to the fusing feed of other materials such as aluminium alloy, kirsite.
Need not use protective gas during the work of the utility model fusing feeding device, energy-conserving and environment-protective help the eliminating of residual gas in the melt tube, reduce the possibility that occurs pore in the product; The injection volume metering accurately; Propelling resistance is little, and melt tube barrel is not easy to wear.
[description of drawings]
For convenience of explanation, the utility model uses following preferred embodiment and accompanying drawing to do to describe in detail.
Fig. 1 is the part cross-sectional schematic of a kind of embodiment of the utility model.
Fig. 2 is the schematic top plan view of embodiment shown in Figure 1.
Fig. 3 is the enlarged diagram of melt tube 2 and conveying pipeline assembly 1 in the embodiment shown in Figure 1.
Fig. 4 is the enlarged diagram of local E in 3.
Fig. 5 is the enlarged diagram of melt tube 2 and conveying pipeline assembly 1 in the another kind of embodiment of the utility model.
[specific embodiment]
Fig. 1-Fig. 4 shows a kind of embodiment of the present utility model.For making things convenient for illustrative, show charge bar 9 and melt 15 in the accompanying drawing in the lump.
As depicted in figs. 1 and 2, this embodiment comprises board 23, be fixed with melt tube 2 and feed system on the board 23, feed system comprises that fixed guide 14, active card are enclosed within forward block 16 on the fixed guide 14, drive power set 20 that forward block 16 moves along fixed guide, are connected the manipulator 21 that can clamp charge bar 9 on the forward block 16, also comprise control module (accompanying drawing is not shown).As shown in Figure 3, melt tube 2 is divided into heat preservation zone A, thermal treatment zone B, cooling area C and cooling zone D, melt tube 2 outer walls of heat preservation zone A and two sections of thermal treatment zone B are provided with electrical heating cover 4, and the layout of the heating element heater in the electrical heating cover 4 and running parameter are according to operating temperature needs choose reasonable; The melt tube 2 of cooling area C section is a connector 5, and the inwall of connector 5 is provided with cooling system 6; The melt tube 2 of cooling zone D section is a gripper shoe 7, and gripper shoe 7 inside are provided with cooling water recirculation system.The discharging opening end of melt tube 2 is connected with conveying pipeline assembly 1, conveying pipeline assembly 1 is made up of 1a section, 1b section and 1c section, in the vertical direction 1c section is the maximum tube section of conveying pipeline assembly 1, the height of 1c section in the vertical direction is higher than the inner chamber of melt tube 2, the left port of 1a section is the melt outlet, and this melt outlet in the vertical direction is lower than the tube chamber of 1c section (the maximum tube section of conveying pipeline assembly 1); Relevant position on the melt tube 2 is provided with thermocouple 3, and the quantity of thermocouple 3 and position can be arranged as required.The right side of the charging aperture of melt tube 2 (being gripper shoe 7) is fixed with the charge bar support guide spare 8 that charge bar 9 is played the support guide effect.
The work of the cooling water recirculation system of control module control electrical heating cover 4, thermocouple 3, cooling system 6, gripper shoe 7 inside, power set 20, manipulator 21.
During work, the radial dimension of control charge bar 9 makes that the rod section that is about to enter melt tube 2 of charge bar 9 is heated just can be by the charging aperture (being the inner chamber of gripper shoe 7) of melt tube 2 after (heat is spread out of from melt tube 2 inside by barred body), and the 1a section and the die casting machine of conveying pipeline assembly 1 are gone into barrel and be communicated with.Manipulator 21 clamps the rear end of charge bar 9, drive unloading rods 9 at power set 20 and be pushed into melt tube 2 from the charging aperture of melt tube 2, the melt that charge bar 9 fusing backs form keeps molten state at heat preservation zone A, the outer charge bars 9 of melt tube 2 continue to be pushed into, and melt is pushed into conveying pipeline assembly 1, enter die casting machine from the 1a section goes into barrel.Cooling area C can not melted the charge bar 9 of close charging aperture one side in the melt tube 2 too early, the melt that the place ahead has been melted from the gap between charge bar 9 and the melt tube 2 when charging aperture refluxes, cooling area C makes the cooling of backflow melt and loses flowability or curing again, and these lose flowability or the backflow melt of curing is again isolated from melt and space outerpace that charging aperture one side will melt; Conveying pipeline assembly 1 is higher than melt tube 2 discharging openings, after finishing a shot, one section melt is still arranged in the conveying pipeline assembly 1, the hydraulic pressure difference that exists between the melt in this section melt and the melt tube 2 makes the melts in the melt tube 2 isolate from discharging opening one side and space outerpace, and this hydraulic pressure difference has an eliminating that is beneficial to melt tube 2 interior residual gas simultaneously.The cross-sectional area of charge bar 9 is fixed, the length that control charge bar 9 is sent into melt tube 2 at every turn can be controlled the per injection process and enter the melt amount that die casting machine is gone into barrel, when finishing a shot, since the melt in the effect melt tube 2 of gravity with enter die casting machine and go into the melt of barrel and disconnect at the maximum tube section 1c of conveying pipeline assembly 1 section place, be convenient to the accurate measurement of per injection amount.
The effect of the cooling water recirculation system of gripper shoe 7 inside be prevent from not enter as yet the charge bar 9 of melt tube 2 because temperature too high (the metal charge bar has good heat-conducting, and the charge bar 9 that the high temperature melts in the melt tube 2 can make the charge bar 9 of rear cooling area C and not enter melt tube 2 as yet heats up) is softening the rigidity deficiency, be unfavorable for advancing; Can also avoid worsening peripheral work condition environment because of charge bar 9 temperature that do not enter melt tube 2 as yet are too high.
Fig. 3 shows melt tube 2 and conveying pipeline assembly 1, and what the inwall of melt tube 2 adopted is ceramic chamber lining 11.
Local E among Fig. 3 as shown in Figure 4, cooling system 6 is made up of heat exchange core 10 and the heat exchanger tube 6a that is wrapped on the heat exchange core 10.Have gap S between the internal diameter of heat exchange core 10 left part and the melt tube 2 charging aperture internal diameters (being the external diameter of charge bar 9 among Fig. 4), gap S is 1mm.The internal diameter of heat exchange core 10 left part is consistent with melt tube 2 cylindrical shell 2b internal diameter herein.Because the existence of gap S can make cooling area C keep higher relatively temperature, the charge bar 9 or the backflow melt that are in cooling area C can keep softening state, thereby reduce the friction between charge bar 9 or backflow melt and the barrel, reduce the wearing and tearing and the propelling resistance of barrel; The charge bar 9 of cooling area C keeps higher cooling temperature can cause herein, and barred body expands, cooling area C is towards the radial dimension of the tube chamber of discharging opening part radial dimension greater than the charging aperture inner chamber, and gap S has been equivalent to provide a ring cavity that can hold barred body expansion back volume increase.
Embodiment 2
Fig. 5 shows another kind of embodiment of the present utility model.The difference of this embodiment and embodiment 1 only is that conveying pipeline assembly 1 is located at the top of melt tube 2 discharging openings, and the height of the tube chamber in the vertical direction of whole conveying pipeline assembly 1 all is higher than the inner chamber of melt tube 2.
The difference of this embodiment and embodiment 1 only is that gap S is 0.5mm.
The difference of this embodiment and embodiment 1 only is that gap S is 5mm.
Claims (9)
1, a kind of cold-chamber die casting machine melts feeding device with the duct type that need not protective gas, it is characterized in that:
Comprise the melt tube that is provided with charging aperture and discharging opening, be positioned at described melt tube rear and charge bar can be sent into the feed mechanism of described melt tube along feed direction; Described melt tube comprises heat preservation zone, the thermal treatment zone and the cooling area that distributes from front to back successively along feedstock direction;
Comprise that also an end is communicated with described melt tube discharging opening, the other end can be imported melt the conveying pipeline assembly that die casting machine is gone into barrel, the tube chamber of this conveying pipeline assembly or part tube chamber are higher than described melt at vertical direction, the tube chamber of tube discharging opening.
2, cold-chamber die casting machine according to claim 1 melts feeding device with the duct type that need not protective gas, it is characterized in that: described conveying pipeline assembly comprises the melt outlet, and this outlet is lower than the peak of described conveying pipeline assembly tube chamber at vertical direction.
3, cold-chamber die casting machine according to claim 1 and 2 melts feeding device with the duct type that need not protective gas, it is characterized in that: described melt tube cooling area is towards the radial dimension of the tube chamber of described discharging opening part radial dimension greater than described charging aperture inner chamber.
4, cold-chamber die casting machine according to claim 3 melts feeding device with the duct type that need not protective gas; it is characterized in that: at described cooling area, the difference of described melt tube between the radial dimension of the tube chamber radial dimension of described discharging opening part and described charging aperture inner chamber is 0.5-5mm.
5, cold-chamber die casting machine according to claim 4 melts feeding device with the duct type that need not protective gas, and it is characterized in that: at the rear of described cooling area along feed direction, described melt tube comprises the cooling zone that is provided with cooling system.
6, cold-chamber die casting machine according to claim 5 melts feeding device with the duct type that need not protective gas, and it is characterized in that: described melt tube inwall is provided with the high-temperature wearable liner.
7, cold-chamber die casting machine according to claim 6 melts feeding device with the duct type that need not protective gas, and it is characterized in that: the top layer of described melt tube is provided with heat-insulation layer.
8, cold-chamber die casting machine according to claim 7 melts feeding device with the duct type that need not protective gas, and it is characterized in that: described melt tube is provided with thermocouple.
9, cold-chamber die casting machine according to claim 8 is characterized in that: comprise control module with the duct type fusing feeding device that need not protective gas; Described heating element heater is the electrical heating cover; Described feed mechanism comprises that fixed guide, active card are enclosed within forward block on the described fixed guide, drive power set that described forward block moves along described fixed guide, are connected the mechanical arm assembly that can clamp charge bar on the described forward block; Be provided with charge bar support guide spare at described charging aperture along the rear of feedstock direction; Described control module electrically connects with described electrical heating cover, thermocouple, power set, mechanical arm assembly, cooling system, cooling system respectively; Described charging aperture is provided with rubber lining mouth; The described melt tube thermal treatment zone is identical with the inner chamber radial dimension of the two adjacent part of cooling area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620015127 CN200984635Y (en) | 2006-09-30 | 2006-09-30 | Pipe type melting material feeding device without protective gas for cold chamber die casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620015127 CN200984635Y (en) | 2006-09-30 | 2006-09-30 | Pipe type melting material feeding device without protective gas for cold chamber die casting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200984635Y true CN200984635Y (en) | 2007-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620015127 Expired - Lifetime CN200984635Y (en) | 2006-09-30 | 2006-09-30 | Pipe type melting material feeding device without protective gas for cold chamber die casting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200984635Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101530901B (en) * | 2008-01-16 | 2012-10-10 | 日精树脂工业株式会社 | Device for melting, storing, and feeding metal material from bar-shaped metal material intended for injection apparatus for molding metal product |
-
2006
- 2006-09-30 CN CN 200620015127 patent/CN200984635Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101530901B (en) * | 2008-01-16 | 2012-10-10 | 日精树脂工业株式会社 | Device for melting, storing, and feeding metal material from bar-shaped metal material intended for injection apparatus for molding metal product |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20071205 |
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| EXPY | Termination of patent right or utility model |