CN2491204Y - Pulp filling and injection moulding machine - Google Patents
Pulp filling and injection moulding machine Download PDFInfo
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- CN2491204Y CN2491204Y CN 01223949 CN01223949U CN2491204Y CN 2491204 Y CN2491204 Y CN 2491204Y CN 01223949 CN01223949 CN 01223949 CN 01223949 U CN01223949 U CN 01223949U CN 2491204 Y CN2491204 Y CN 2491204Y
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- mould
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Abstract
The utility model relates to a pulp filling and injection moulding machine. The primary structure of the utility model is as follows: a mixing tank is arranged on a support table, a stirrer is arranged in the mixing tank, a temperature regulation device is arranged on the outside of the mixing tank; a moulding box is arranged under the support table, a forming mould is arranged in the moulding box; the mixing tank is communicated with the forming mould through an introduction valve; one end of a high-pressure vacuum isolation valve is communicated with the mixing tank and a high pressure gas source by a pipeline, the other end of the high-pressure tank is communicated with the moulding box and a vacuum source by the pipeline; a stop valve and an exhaust valve are arranged on a high pressure pipeline. The utility model has the advantages of excellent quality of the moulding body, a simple structure, easy cleanout, low cost and non-contaminative slurry in the technological process.
Description
The utility model relates to powder metallurgy and ceramic injection forming or powder slurry pouring equipment.
No matter be powder slurry pouring (main finger pressure filter moulding) or injection moulding, in the mixed process of its powder and forming adhesive, all can in slurry, entrain into a large amount of micro-bubbles, simultaneously owing to have gas in the die cavity, can be involved in gas in the process that slurry injects die cavity again, cause base substrate inside to have a large amount of pores, lack great waves and profiled part rough surface, cause the molded blank poor quality, sintering warpage and final material property descend.Chinese patent CN2385860Y provides a kind of high technology ceramics vertical colloidal injection moulding machine, mainly is made up of workbench, slurry tank, stirring vane, propelling piston, vacuum (-tight) housing and non-punch die.Vacuum (-tight) housing places on the workbench, and non-punch die places in the vacuum (-tight) housing, and slurry tank places workbench, has geat to communicate between slurry tank and the non-punch die, and the skin of slurry tank is a refrigerating layer, and stirring vane and propelling piston place the bottom of slurry tank.Its operation principle is after the gas that will be positioned at slurry tank, vacuum (-tight) housing and die cavity is extracted into the certain vacuum degree, to be advanced from the bottom by the piston that has stirring vane, and slurry is slowly injected non-punch die by geat.Adopt this method to solve base substrate pore problem, but the wearing and tearing of shaft seal clearance and because the slurry contamination problem that wearing and tearing cause that have the rotary dynamic seal problem of the straight line movable sealing of propelling piston and shaft, cause by the hard powder particle.Because injection port and slurry tank are located at the top of slurry, the powder particle under the gravity effect in the slurry has the trend of sinking, and consequently the low concentration slurry on top at first is injected into die cavity, influences the quality of blank.Adopt piston to produce injection pressure, sealing again simultaneously, the mechanical part structure is complicated, required precision height, and inconvenience cleaning; Injection pressure is also wayward simultaneously.Also adopted vacuum degassed method in the manufacture method of the ceramic sintered bodies that Japan Patent JP2-172854 provides, forming machine also is to adopt the piston pressurization to make the moulding of vacuum degassed blank flow.The mixing of different is slurry and stirring separate with the flow moulding to be carried out, not from machinery with these two integrated or serializations of process.
The purpose of this utility model provides a kind of equipment that slurry mixes and molding procedure is carried out continuously that can make in slip-casting and the injection molding technique under vacuum state.This equipment is pollution-free to slurry in technical process, and the shaping blank quality is good, and structure is comparatively simple, is convenient to clean, and cost is also comparatively cheap.
The technical solution of the utility model is: a kind of slip-casting and injection molding equipment of being used for, mainly form by mixing tank, vacuum (-tight) housing, mould, brace table.Mixing tank 3 places on the brace table 13, and inside is provided with agitator 6, and the outside is provided with register 4, and the top of mixing tank 3 is provided with the air inlet/outlet that is used to vacuumize and/or inflate pressurization; Vacuum (-tight) housing 8 places brace table 13 times, and casing 9 is provided with the air inlet/outlet that vacuumizes and/or inflate except that vacuum; Mould 11 places in the shaping box 9; 11 of mixing tank 3 and moulds communicate through introduction valve 7.
To only being used for the equipment of slip-casting, because no temperature adjustment requirement in the technical process, so the register in the such scheme can be saved, other basic structure is all identical with such scheme.
In above-mentioned two kinds of schemes, the introduction valve between mixing tank and mould is a pressure valve; This pressure valve can be made of valve plug, back-moving spring and valve seat.Like this, when slurry press filtration or injection, under the high-pressure gas pressure effect, can open introduction valve.In technical process,, not only consume equipment because the slurry in the mixing tank directly contacts, rubs with members such as jar inwall and stirring vane, shafts, and easily cause pollution to slurry, therefore, these parts can carry out the corrosion protection Wear-resistant Treatment in advance, or make of high-abrasive material against corrosion.For the anti-too high breaking-up equipment of air pressure, on the high pressure gas pipeline, can be provided with safety valve.Can be provided with on support stand 22 in addition and shake liquid vibrator 23, the state that slurry is in be easy to flow is convenient to slurry press filtration or injection moulding.
For the ease of to mixing tank and shaping box vacuumizes and to mixing tank inflation pressurization, the air inlet/outlet 21 of mixing tank 3 and shaping box 9 and 12 are provided with and are communicated with main pipe rail 14, and main pipe rail 14 is provided with high pressure-vacuum separation valve 17; One end of isolating valve 17 communicates with high-pressure air source 18 and mixing tank 3 by the road, and the other end communicates with vacuum source 16 and shaping box 9 by the road; The high pressure gas pipeline is provided with high pressure gas stop valve 20 and air bleeding valve 19; For preventing that high pressure gas from entering vacuum line, establish vaccum stop valve 15 on the vacuum line.
Such scheme has reduced because of the pollution of mechanical wear to slurry owing to adopted air-pressure forming.Simultaneously, owing to adopted the organization plan that two ends about the slurry are vacuumized simultaneously, be easy to guarantee necessary vacuum in the technical process.Slurry tank is last, shaping box under structure then can guarantee press filtration or injection the time slurry be at first to inject die cavity with the slurry that uniform concentration is injected die cavity or higher concentration; These measures have all improved the quality of shaping blank effectively.In addition, because accurate, complicated member such as no piston contacts with slurry in this programme, thereby is easy to cleaning, cost is also lower.
Further the utility model is elaborated below in conjunction with drawings and Examples.
Fig. 1 is the utility model structure principle chart and embodiment one structural representation.
Fig. 2 is the structural representation of the utility model embodiment two.
As shown in Figure 1, mixing tank 3 places on the brace table 13, and the tank body upper end is sealed with seal cover 1, and agitator 6 is packed into from seal cover 1 in the mixing tank 3.The top of mixing tank is provided with charging aperture 2 and air inlet/outlet 21, and the bottom communicates with the mould geat through introduction valve 7.Register 4 is equipped with in the outside of mixing tank.Vacuum (-tight) housing 8 places the bottom of brace table 13, constitutes shaping box 9 with brace table.Mould 11 is housed in the shaping box 9, and casing is provided with air inlet/outlet 12.Operation principle of the present utility model is: when being used for general injection molding technique, at first close introduction valve 7 during work, and from the charging aperture slurry of packing into, and the sealing charging aperture.By the temperature of register 4 control mixing tanks 3, slurry 5 is in be easy to the state that stirs and inject, start agitator 6, slurry is mixed, vacuumize by air inlet/outlet 21 and the 12 pairs of mixing tanks and shaping box, remove the air in the slurry 5.After slurry 5 abundant mixing and the degasification, continue to be held in the state that vacuumizes of molding box, stop to stir and vacuumizing mixing tank, utilize high-pressure air source from 21 pairs of mixing tank inflations of air inlet/outlet pressurization then, open introduction valve 7, make slurry inject die cavity 10, forming and hardening obtains the profiled part blank.
According to the difference of concrete application target, the register 4 in the utility model structure can be simple heating or refrigerating plant, also can be the register that heating and refrigerating function all are equipped with; Certainly, in technology as no temperature adjustment when needing, also can save this register, with the reduction equipment cost.
Embodiment one, above-mentioned vacuum degassing and high-pressure aerated pressure process can be finished by the pipeline of peripheral hardware and high-pressure air source and vacuum source, as shown in Figure 1, be provided with main pipe rail 14 between the air inlet/ outlet 21 and 12 of mixing tank 3 and shaping box 9, main pipe rail 14 is provided with high pressure-vacuum separation valve 17.Isolating valve 17 1 ends communicate with mixing tank 3 and high-pressure air source 18 by the road, and the other end communicates with shaping box 9 and vacuum source 16.The high pressure gas pipeline is provided with high-pressure stop valve 20 and air bleeding valve 19, and vacuum line is provided with vaccum stop valve 15.Its technical process is: close pressure duct stop valve 20, open high pressure-vacuum separation valve 17 and vacuum line stop valve 15 on the main pipe rail 14, start vacuum source 16, mixing tank 3 and shaping box 19 are vacuumized simultaneously, remove the air in the slurry 5.After slurry 5 abundant mixing and the degasification, stop to stir, close high pressure-vacuum separation valve 17, open high-pressure stop valve 20, start high-pressure air source 18, mixing tank is carried out pneumatic compression, open introduction valve 7, make slurry inject die cavity 10, forming and hardening.After injection pressure reaches setting value, close pressure duct stop valve 20, then close high-pressure air source, behind the pressurize certain hour, open air bleeding valve 19 and the high pressure gas pipeline stop valve 20 be located on the pressure duct, the high pressure gas in the mixing tank 3 is drained.Open the high pressure-vacuum separation valve 17 on the main pipe rail, make extraneous gas enter shaping box 9, go vacuum, take off vacuum (-tight) housing 8 and mould 11, take out profiled part.Injection pressure can be controlled through high-pressure air source.In press filtration and process of injection molding, enter vacuum line for preventing high pressure gas, can close vaccum stop valve 15 and vacuum source 16.
Embodiment two, and as shown in Figure 2, its basic structure is identical with Fig. 1, are provided with safety valve 24 in addition on pressure duct.Introduction valve 7 is a pressure valve, is made up of valve plug 25, back-moving spring 27 and valve seat 26 etc.; Under injection or press filtration pressure, valve plug 25 is opened, and valve plug seals geat under other situation.Register 4 is a heater.In addition, inject or press filtration, on support stand 22, installed and shaken liquid vibrator 23 for making thinning being easier to of slurry.After slurry mixes, outgases and stops to stir, start this and shake the liquid vibrator, can make the slurry vibration thinning, be easy to flow.
Embodiment three, and its basic structure is identical with embodiment one, but because of this equipment only is used for slip-casting technology, generally need not heat or cool off, so saved register.
Claims (10)
1. one kind is used for slip-casting and injection molding equipment, mainly close and constitute by mixing tank, vacuum (-tight) housing, mould and support, it is characterized in that: mixing tank (3) places on the brace table (13), mixing tank (3) inside is provided with agitator (6), the outside is provided with register (4), and air inlet/outlet is established on top; Vacuum (-tight) housing (8) places under the brace table (13), and shaping box (9) is provided with air inlet/outlet; Mould (11) places in the shaping box (9); Communicate through introduction valve (7) between mixing tank (3) and mould (11).
2. slip-casting according to claim 1 and injection forming equipment is characterized in that: the introduction valve between mixing tank and mould is a pressure valve.
3. equipment according to claim 2 is characterized in that: the pressure valve between mixing tank and mould is made of valve plug (25), back-moving spring (27) and valve seat (26).
4. according to the described arbitrary equipment of claim 1～3, it is characterized in that: mixing tank inwall, agitator, introduction valve and other member that contacts with batch mixing are all made of the corrosion protection high-abrasive material.
5. according to the described arbitrary equipment of claim 1～3, it is characterized in that: an end of high pressure-vacuum separation valve (17) communicates with high-pressure air source (18) and mixing tank (3) by the road, and the other end communicates with vacuum source (16) and shaping box (9) by the road; The high pressure gas pipeline is provided with stop valve (20) and air bleeding valve (19); Vacuum line is provided with stop valve (15).
6. according to the described arbitrary equipment of claim 1～3, it is characterized in that: the high pressure gas pipeline is provided with safety valve.
7. according to the described arbitrary equipment of claim 1～3, it is characterized in that: support stand (22) is provided with and shakes liquid vibrator (23).
8. an equipment that is used for slip-casting mainly is made of mixing tank, vacuum (-tight) housing, mould and brace table, it is characterized in that: mixing tank (3) places on the brace table (13), and mixing tank (3) inside is provided with agitator (6), and air inlet/outlet is established on top; Vacuum (-tight) housing (8) places under the brace table (13), and shaping box (9) is provided with air inlet/outlet; Mould (11) places in the shaping box (9); Communicate through introduction valve (7) between mixing tank (3) and mould (11).
9. slip-casting former according to claim 8 is characterized in that: the introduction valve between mixing tank and mould is a pressure valve.
10. according to Claim 8 or 9 described equipment, it is characterized in that: an end of high pressure-vacuum separation valve (17) communicates with high-pressure air source (18) and mixing tank (3) by the road, and the other end communicates with vacuum source (16) and shaping box (9) by the road; The high pressure gas pipeline is provided with stop valve (20) and air bleeding valve (19); Vacuum line is provided with vaccum stop valve (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01223949 CN2491204Y (en) | 2001-05-17 | 2001-05-17 | Pulp filling and injection moulding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01223949 CN2491204Y (en) | 2001-05-17 | 2001-05-17 | Pulp filling and injection moulding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2491204Y true CN2491204Y (en) | 2002-05-15 |
Family
ID=33640389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01223949 Expired - Lifetime CN2491204Y (en) | 2001-05-17 | 2001-05-17 | Pulp filling and injection moulding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2491204Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104139180A (en) * | 2013-05-07 | 2014-11-12 | 柯马杜股份有限公司 | Method of mixing raw material for powder metallurgy, mixer, and binder for injection moulding composition |
| CN105835228A (en) * | 2015-01-13 | 2016-08-10 | 财团法人石材暨资源产业研究发展中心 | Apparatus for manufacturing artificial stone molded product |
| CN106738297A (en) * | 2017-01-17 | 2017-05-31 | 深圳方泰新材料技术有限公司 | A kind of semi-automatic grouting device and its application method |
-
2001
- 2001-05-17 CN CN 01223949 patent/CN2491204Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104139180A (en) * | 2013-05-07 | 2014-11-12 | 柯马杜股份有限公司 | Method of mixing raw material for powder metallurgy, mixer, and binder for injection moulding composition |
| CN105835228A (en) * | 2015-01-13 | 2016-08-10 | 财团法人石材暨资源产业研究发展中心 | Apparatus for manufacturing artificial stone molded product |
| CN105835228B (en) * | 2015-01-13 | 2018-05-18 | 财团法人石材暨资源产业研究发展中心 | It is used to prepare the equipment of artificial stone forming product |
| CN106738297A (en) * | 2017-01-17 | 2017-05-31 | 深圳方泰新材料技术有限公司 | A kind of semi-automatic grouting device and its application method |
| CN106738297B (en) * | 2017-01-17 | 2019-02-05 | 深圳方泰新材料技术有限公司 | A kind of semi-automatic grouting device and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110517 Granted publication date: 20020515 |