CN104772439A - Heating device for grid plate on table top of sand mold conveying table - Google Patents
Heating device for grid plate on table top of sand mold conveying table Download PDFInfo
- Publication number
- CN104772439A CN104772439A CN201510167239.2A CN201510167239A CN104772439A CN 104772439 A CN104772439 A CN 104772439A CN 201510167239 A CN201510167239 A CN 201510167239A CN 104772439 A CN104772439 A CN 104772439A
- Authority
- CN
- China
- Prior art keywords
- sand mold
- sand
- grid plate
- turbogrid plates
- temperature controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C19/00—Components or accessories for moulding machines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a heating device for a grid plate on the table top of a sand mold conveying table of a perpendicular parting box-free high-pressure molding machine. Two electric heating plates are mounted on the side surface of each grid plate through a two-head pressing plate and screws; the electric heating plates are stainless steel thin-plate hollow sealed long-flat box bodies in which electric heating wires embedded into the middle parts of the box bodies by crystallized magnesium oxide are arranged; the electric heating wires are connected with an external lead wire through a joint box; the other end of the lead wire is connected with a contactor in a control cabinet; the contactor is controlled by a temperature controller; the temperature controller is controlled by a thermocouple mounted on one grid plate, so that the grid plate can keep the temperature higher than that of molded sand, and the grid plate cannot be adhered with sand and damage the sand surface after being heated; therefore, normal movement of the sand mold under a closing sate is kept, the adhered sand scraping time is shortened, and the production efficiency is also improved.
Description
Technical field
The present invention is a kind of heater of vertical-parting without case high-pressure molding machine sand mold transport platform table top Turbogrid plates.
Background technology
Vertical-parting is without existing many productions at home of case high-pressure molding machine, and sand mold transport platform supporting with it has fixed and movable two kinds of structures.The moulding machine majority of medium and small die cavity joins fixed transport platform, but have pneumatic pinch structural clamp whole sand mold and moulding machine to release sand mold synchronously to move forward, and large die cavity moulding machine all increases weight a lot due to moulding and molten iron, the movable transport platform of most employing is to ensure that sand mold is intact in transport platform.Movable transport platform DiSA company is called for short PMC system, there is no clamping structure, table top Turbogrid plates were moved and only did vertical movement two groups of grids by horizontal and vertical form, sand mold is held each mobile sand mold thickness distance by the Turbogrid plates that can move horizontally on table top, at this moment another group grid rises, hold sand mold, and the Turbogrid plates of movement decline, and return original place.When the grid of movement and moulding machine release synchronously move forward time, another group Turbogrid plates decline to leaving sand mold, just when two groups of Turbogrid plates are alternately elevated, bottom sand mold a little residual fall molding sand stay plane on Turbogrid plates, continuous bonding increases pressurized, one deck duricrust can be formed, when this duricrust thickness exceeds Turbogrid plates range, Turbogrid plates move horizontally or sand mold is mobile forward all can draw effect to producing to scrape bottom sand mold, not only destroy sand mold synchronizing moving performance, the sand mold that mutual die joint is adjacent to can also be pulled open, cause sand mold to scrap continuously.Once find that sand mold has dislocation phenomenon in transport platform, just must stop moulding, long-pending sand is struck off to Turbogrid plates, remove and scrap sand mold, more again produce.
Summary of the invention
The present invention is that vertical-parting is without case high-pressure molding machine sand mold platform heater.The molding sand of clay-bonded sand moulding is by potter's clay and the moisture bonding agent as sand grains, under high pressure compressing, the Turbogrid plates of transport platform pushed to by sand mold, because Turbogrid plates temperature after heating is higher than sand mold temperature, after sand mold touches Turbogrid plates, top layer bonding agent moisture fast transferring and evaporation, make bonding agent be in solidified surface and lose molding sand adhesion effect, with regard to difficult drop-off bonding one-tenth duricrust on Turbogrid plates.
Technical scheme
Sand mold transport platform is made up of side by side polylith Turbogrid plates, every block grid has the space equal with thickness with each other, at transport platform pour point in the length of moulding machine, because remote pouring point, temperature is lower, in the side of every block Turbogrid plates, with double-head pressing plate and screw, long flat electric hot plate two pieces is installed, the wire of electric hot plate is connected with the contactor normally open contact of switch board, contactor coil is by controlling with the temperature controller of coil tandem, the contact of temperature controller is controlled by the thermocouple be arranged on one piece of Turbogrid plates, and thermocouple has wire to be connected with temperature controller.
Be characterized in
Electric hot plate makes long and flat sealed hollow box body with stainless sheet steel, and in advance at box medial exhaust heating wire, use crystal magnesium oxide pointing around heating wire, heating wire and inboard wall of cartridge can not be contacted and keep insulating, heating wire is connected with outer lead by joint.
Beneficial effect
Transport platform pushed to by sand mold, is heated and accelerates to solidify, molding sand difficult drop-off bottom it with the molding sand top layer bonding agent of Turbogrid plates contact portion, more because solidification loses adhesion performance, no longer includes residual sand and is bonded on Turbogrid plates.Keep complete bottom sand mold, maintain lifting space, sand mold can not be opened die joint and scrap.Turbogrid plates are no longer often shut down and are struck off scab, and production efficiency is also improved.
Accompanying drawing explanation
Fig. 1, runout table Turbogrid plates structure
The right view of Fig. 2, Fig. 1
Amplification view installed by the electric hot plate of Fig. 3, Fig. 1
Fig. 4, electrical wiring schematic diagram
In accompanying drawing: 1-1. moves Turbogrid plates group 1-2. fixed-grid plate group 2. electric hot plate 3. double-head pressing plate 4. screw 5. thermocouple 6. bracket 7. electric hot plate box body 8. heating wire 9. crystal magnesium oxide 10. electric hot plate wire C. contactor T. temperature controller R. heating wire r. thermocouple induction head K. switch
Detailed description of the invention
Be described further with reference to the accompanying drawings below.Vertical-parting to be made up of side by side polylith Turbogrid plates 1-1 and 1-2 without case high-pressure molding machine sand mold transport platform and to be arranged on polylith bracket 6, in the side of every block Turbogrid plates 1-1,1-2, with double-head pressing plate 3 and screw 4,2 blocks of electric hot plates 2 are installed, the wire 10 of electric hot plate 2 is connected with the contactor C normally open contact in switch board, the coil of contactor C is by controlling with the temperature controller T of coil tandem, the contact of temperature controller T controls thermocouple by the thermocouple 5 be arranged on bottom one piece of Turbogrid plates 1-1 or 1-2 has wire to be connected with temperature controller, makes Turbogrid plates 1-1 and 1-2 maintain the temperature of setting.
Described electric hot plate 2 makes long and flat sealed hollow box body 7, the heating wire 8 discharged in advance in inside, pointing crystal magnesium oxide 9 around heating wire 8 with stainless sheet steel, and heating wire 8, by insulating joint, is connected with outer lead 10.
Claims (2)
1. vertical-parting is without the Turbogrid plates heater of case high-pressure molding machine sand mold transport platform.It is characterized in that: at the side double-head pressing plate of every block Turbogrid plates and screw, two blocks of electric hot plates are installed, electric hot plate wire is connected with the contactor normally open contact of switch board, contactor coil is by controlling with the temperature controller of coil tandem, the contact of temperature controller controls by the thermocouple be arranged on one piece of Turbogrid plates, thermocouple has wire to be connected with temperature controller
2. vertical-parting according to claim 1 is without case high-pressure molding machine sand mold transport platform Turbogrid plates heater.It is characterized in that: described electric hot plate makes long and flat sealed hollow box body with stainless sheet steel, in advance at box medial exhaust heating wire, use crystal magnesium oxide pointing around heating wire, heating wire and inboard wall of cartridge can not be contacted and keep insulating, electrothermic wire insulation joint is connected with outer lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510167239.2A CN104772439A (en) | 2015-04-01 | 2015-04-01 | Heating device for grid plate on table top of sand mold conveying table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510167239.2A CN104772439A (en) | 2015-04-01 | 2015-04-01 | Heating device for grid plate on table top of sand mold conveying table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104772439A true CN104772439A (en) | 2015-07-15 |
Family
ID=53614376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510167239.2A Pending CN104772439A (en) | 2015-04-01 | 2015-04-01 | Heating device for grid plate on table top of sand mold conveying table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104772439A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215292A (en) * | 2015-11-05 | 2016-01-06 | 浙江汉声精密机械有限公司 | A kind of sandbox baking mechanism of sand mold molding machine |
-
2015
- 2015-04-01 CN CN201510167239.2A patent/CN104772439A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215292A (en) * | 2015-11-05 | 2016-01-06 | 浙江汉声精密机械有限公司 | A kind of sandbox baking mechanism of sand mold molding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150715 |