CN100534666C

CN100534666C - Method and device for forming flaskless cope and drag, and method of replacing matchplate

Info

Publication number: CN100534666C
Application number: CNB2004800380715A
Authority: CN
Inventors: 平田实; 小宫山贵之
Original assignee: Sintokogio Ltd
Current assignee: Sintokogio Ltd
Priority date: 2003-12-18
Filing date: 2004-12-17
Publication date: 2009-09-02
Anticipated expiration: 2024-12-17
Also published as: CN1898047A

Abstract

A method and device capable of efficiently forming a high-quality flaskless cope and drag. A matchplate is held by a cope and drag as a set, the cope and drag being in a horizontal state and each having a sand blowing nozzle in the side wall. Upper and lower squeeze means are respectively inserted in matchplate-less openings in the cope and drag to define two upper and lower cavities. The cope and drag and the matchplate are set in a vertical state, and at the same time the sand blowing nozzles are moved upward. Molding sand is blown from the sand blowing nozzles into the two upper and lower forming cavities to fill the cavities. While the cope and drag and the matchplate being returned to a horizontal state, the upper and lower squeeze means are further advanced, and the molding sand in the two upper and lower forming cavities are individually squeezed. The cope and drag containing the mold are separated from the matchplate, and then the matchplate is removed from between the cope and drag. A core is set, when required, in the mold previously formed during the steps above, and then the mold is removed from the cope and drag containing the mold.

Description

The manufacture method of the upper and lower molds of no sandbox and device, and the switching method of match plate

Technical field

The present invention relates to a kind of manufacture method and device that does not have the upper and lower molds of sandbox, and a kind of switching method of match plate and device.

Background technology

A kind of as existing this kind device for producing molds, it structurally comprises:

One is positioned at base station top, and along continuous straight runs pushes the device of molding sand, and one is positioned at the base station near surface, a molding top box is agreed with mutually and with the device of mold taking-up with a molding nowel.The two pairs of molding top boxs and molding nowel carry out alternate reciprocating motion, thus the upper and lower molds of the no sandbox that is agreed with mutually.

Yet there are a lot of problems in the manufacturing installation of the upper and lower molds of the no sandbox of this kind structure, and not high as the efficient of molding, the mold quality has much room for improvement, the exchange inconvenience of match plate, and device needs miniaturization more etc.

Licence 1: Japan's disclosed No.S62-16736 communique in the special permission Room

Summary of the invention

The manufacture method and the device that the purpose of this invention is to provide a kind of upper and lower molds of improved no sandbox, and the switching method of match plate, it is not high that it has solved in the existing device for producing molds efficient, the mold quality has much room for improvement, the exchange inconvenience of match plate, and device needs problems such as miniaturization more.

To achieve these goals, its first invention comprises:

The method of the upper and lower molds of the no sandbox that manufacturing can agree with mutually;

Be blown into a pair of molding top box that is positioned at level of mouth and the process of molding nowel clamping match plate by being respectively equipped with molding sand on the sidewall;

Pressurizing unit inserts molding top box and molding nowel does not respectively up and down have the peristome at match plate place to form the process in two molding spaces up and down;

Rotation molding top box, molding nowel and match plate make it be in plumbness, and molding sand are blown into the process that mouth is moved upward;

Be blown into the process that mouth is filled molding sand up and down in two molding spaces by molding sand;

Two molding spaces were also pushed the molding sand in the space respectively about pressurizing unit entered up and down;

A pair of molding top box, molding nowel and match plate return to the process of level;

At a pair of molding top box, the molding nowel that include mold and after match plate separates, with match plate from this process to extracting molding top box and the molding nowel;

In the carrying out of above process, if necessary, core is set in mold inside, the molding top box and the molding nowel that contain mold are agreed with mutually, and the process that mold is extracted from a pair of molding top box that agrees with mutually and molding nowel.

Because the process of molding in a pair of sandbox can be carried out simultaneously with the process that the mold that molding is good is extracted from sandbox, so said method can reach the actual effect than the effective molding in the shorter time of existing die-manufacturing method.

The application's second invention comprises:

With the manufacture method of the upper and lower molds of the application's the relevant no sandbox of first invention in, do not have the peristome at match plate place, the process in two molding spaces about pressurizing unit inserts respectively up and down at a pair of molding top box and molding nowel;

A pair of molding top box, molding nowel and match plate rotate to plumbness, and molding sand is blown into a mouthful process that is moved upward to carry out simultaneously.

Such frame for movement can make the production efficiency of mold improve.

The application's the 3rd invention comprises:

With the manufacture method of the upper and lower molds of the application's the relevant no sandbox of first invention in, two pressurizing units enter two molding spaces up and down respectively up and down, and respectively molding sand is pushed, a pair of molding top box, molding nowel and match plate rotate to plumbness and molding sand and are blown into the process that mouth moves up and carry out simultaneously.

Such frame for movement can make the production efficiency of mold improve.

The application's the 3rd invention comprises:

With the manufacture method of the upper and lower molds of the application's the relevant no sandbox of first invention in, two pressurizing units enter two molding spaces up and down respectively up and down, and respectively molding sand is pushed, a pair of molding top box, molding nowel and match plate return to the process of level.

The application's the 4th invention comprises:

With the manufacture method of the upper and lower molds of the application's the relevant no sandbox of first invention in, lower extrusion plate is as pressurizing unit in the use.

Such frame for movement provides a kind of manufacture method of more simply not having the upper and lower molds of sandbox.

The application's the 5th invention comprises:

With the manufacture method of the upper and lower molds of the application's the relevant no sandbox of first invention in, squeeze feet is as pressurizing unit about using.

Such frame for movement can obtain a kind of high upper and lower molds of density homogeneous, quality of sand.

Its 6th invention comprises:

With the manufacture method of the upper and lower molds of the application's the relevant no sandbox of the 4th invention in, after being blown into mouth and filling molding sand in two molding spaces up and down by molding sand, the draw back process of certain distance of last lower extrusion plate, and be blown into the process that mouth is filled molding sand up and down in two molding spaces by molding sand.

The application's the 7th invention comprises:

With the manufacture method of the upper and lower molds of the application's the relevant no sandbox of the 6th invention in, by molding sand be blown into mouth up and down in two molding spaces the draw back process of certain distance of the process of filling molding sand and last lower extrusion plate carry out simultaneously.

The application's the 8th invention comprises:

With the manufacture method of the upper and lower molds of the application's the relevant no sandbox of the 5th invention in, pressurizing unit inserts peristome that molding top box and molding nowel do not have a match plate place respectively with in the process that forms two molding spaces up and down up and down, make the model part of match plate and with it the relative a plurality of conducts of direction up and down the interval that forms respectively of the squeeze feet up and down of pressurizing unit before the molding sand extruding and the ratio process much at one after pushing.

The application's the 9th invention comprises:

With the manufacture method of the upper and lower molds of the application's the relevant no sandbox of the 5th invention in, pressurizing unit inserts peristome that molding top box and molding nowel do not have a match plate place respectively with in the process that forms two molding spaces up and down up and down, make the model part of match plate and with it the relative a plurality of conducts of direction up and down the squeeze feet up and down of pressurizing unit form the molding sand process in the mobile space of portion within it of being convenient to respectively.

The application's the tenth invention comprises:

With the system photograph method of the upper and lower molds of the application's the relevant no sandbox of the 9th invention in, make a plurality of conducts relative of the model of match plate with direction with it up and down the squeeze feet up and down of pressurizing unit form respectively and be convenient to molding sand within it in the process in the portion space of flowing, at the spout place (particularly spout throat) of the fluffing of moulding sand jar of sand fluidity difference, the ejection auxiliary air is with the process of the rubbing action that reduces sand and sidewall.

The application's the 11 invention comprises:

With the manufacture method of the upper and lower molds of the application's the relevant no sandbox of the 5th invention in,

Pressurizing unit inserts peristome that molding top box and molding nowel do not have the match plate place processes to form two molding spaces up and down and respectively molding sand to be pushed respectively up and down;

Be blown into mouthful first molding sand of in by vertical match plate, molding top box, molding nowel, pressurizing unit constitutes up and down molding space, filling molding sand by molding sand and be blown into process;

First extrusion process that the molding space was pushed molding sand about squeeze feet entered about a plurality of;

As after squeeze feet retreats up and down of pressurizing unit up and down, second molding sand of filling molding sand is blown into process in molding the space in up and down;

Be positioned on the same horizontal plane as the plane of respectively pushing of the squeeze feet up and down of pressurizing unit up and down, and can be used as the second molding sand extrusion process that an integral body is pushed the molding sand in two molding spaces up and down.

The application's the 12 invention comprises:

In the manufacturing installation of the upper and lower molds that agrees with mutually of no sandbox,

The sidewall of the two pairs of molding top boxs and molding nowel has molding sand to be blown into mouth respectively;

By means of conveyer, a match plate can in these two pairs of molding top boxs and molding nowel, coming in and going out;

The molding sand pressurizing unit supports molding top box and the molding nowel that a pair of clamping has match plate, there is not the peristome at match plate place as come in and go out respectively molding top box and molding nowel of the last lower extrusion plate of pressurizing unit, it can be that rotate in vertical plane clockwise or counterclockwise at the center with the back shaft on the board that clamping has the molding top box of match plate and molding nowel, and then is in plumbness or level;

Clockwise or be rotated counterclockwise the drive unit of pressurizing unit;

Be blown into mouthful the molding sand device for blowing that in the molding top box of plumbness and molding nowel, is blown into molding sand by the driving of rotating driving device from molding sand;

The mold extracting apparatus that a pair of mold that agrees with mutually in molding top box and the molding nowel is extracted in the molding top box of level and the molding nowel;

The sandbox whirligig, it rotates molding top box and molding nowel that two pairs of levels are arranged alternately, off and between molding sand pressurizing unit and casting mold extracting apparatus in level, and this sandbox whirligig can also lifting molding top box.

As mentioned above, by using this device, can in a pair of sandbox, carry out molding, and a pair of upper and lower molds can be extracted in sandbox, can in the shorter time, produce the upper and lower molds of no sandbox than existing this kind die-manufacturing method more effectively mold.

The application's the 13 invention comprises:

In the manufacturing installation of the upper and lower molds of the no sandbox relevant with the application's the 12 invention, lower extrusion plate is as pressurizing unit in the use.

Such frame for movement can provide the manufacturing installation of the upper and lower molds that does not more simply have sandbox.

The application's the 14 invention comprises:

In the manufacturing installation of the upper and lower molds of the no sandbox relevant with the application's the 12 invention, squeeze feet is as pressurizing unit about using.

Such frame for movement can obtain a kind of homogeneous density of sand, high-quality upper and lower molds.

The application's the 15 invention comprises:

With the application's the 12 invention to the manufacturing installation of the upper and lower molds of the relevant no sandbox of the 14 invention, the mold extracting apparatus comprises:

Make the mold extracting apparatus can lifting, and slowly insert the tabular mold bracing or strutting arrangement of the rectangle of sandbox inside;

Be arranged at the following fluid cylinder of this mold bracing or strutting arrangement below;

Be arranged at the following lifting platform that makes it lifting of this time fluid cylinder below;

Be arranged at the following Foldable telescopic machine of this time lifting platform below;

Be arranged at mold bracing or strutting arrangement top certain distance, can tabular mold ejecting device lifting and that can slowly insert the rectangle of molding nowel;

Be arranged at the last fluid cylinder of this mold ejecting device top;

Be arranged at the top of fluid cylinder on this can lifting last lifting platform;

Be arranged at the last Foldable telescopic machine of lifting platform top on this.

Such frame for movement can make the height of mold extracting apparatus reach the degree that can reach, and this device is extracted a pair of mold in molding top box and molding nowel.

The application's the 16 invention comprises:

Relevant with the application's the 15 invention, be used for not having in the mold extracting apparatus of manufacturing installation of upper and lower molds of sandbox,

Last Foldable telescopic machine is toggle device or retractor device with following Foldable telescopic machine.

The application's the 17 invention comprises:

Relevant with the application's the 15 invention or the 16 invention, in the manufacturing installation of the upper and lower molds of no sandbox in the mold extracting apparatus,

Last fluid cylinder is a hydraulic cylinder, and following fluid cylinder is a pneumatic cylinder.

The application's the 18 invention comprises:

Relevant with the application's the 12 invention to the 14 invention, in the method for using in the manufacturing installation of the upper and lower molds of no sandbox of utilizing sandbox whirligig exchange match plate,

The process that two molding top boxs in two pairs of molding top boxs and the molding nowel are risen;

Match plate is moved into the process of the molding top box that is positioned at molding sand pressurizing unit one side by travelling carriage;

Match plate is moved into the process of the molding top box that is positioned at mold extracting apparatus one side by travelling carriage;

By the sandbox whirligig, make the match plate rotation that is positioned at molding sand pressurizing unit one side move to mold extracting apparatus one side, and the match plate rotation that will be positioned at mold extracting apparatus one side move to the process of molding sand pressurizing unit one side;

Two match plates in mold extracting apparatus place and the rotation of molding sand pressurizing unit place move the back and pulled out

The process that goes out.

By above method, can make become shorter the swap time of match plate, thereby raise the efficiency.

Description of drawings

Fig. 1 uses the front portion view of pressing plate as the manufacturing installation of the upper and lower molds of the no sandbox of pressurizing unit in a preferred embodiment of the present invention.

Fig. 2 is the A-A profile of Fig. 1, shows the state of molding top box and

molding nowel

2,3 clamping match plates.

Fig. 3 is the plane of Fig. 1.

Fig. 4 is the movement state diagram of the part process of using the molded mold of Fig. 1 device and the state diagram that is blown into molding sand up and down in two molds.

Fig. 5 a exchanges the movement state diagram of the part process of match plate for using Fig. 1 device, comprises the plane on top and the front elevation of bottom.

Fig. 5 b exchanges the movement state diagram of the part process of match plate for using Fig. 1 device, comprises the plane on top and the front elevation of bottom.

Fig. 6 a exchanges the movement state diagram of the part process of match plate for using Fig. 1 device, comprises the plane on top and the front elevation of bottom.

Fig. 6 b exchanges the movement state diagram of the part process of match plate for using Fig. 1 device, comprises the plane on top and the front elevation of bottom.

Fig. 7 a exchanges the movement state diagram of the part process of match plate for using Fig. 1 device, comprises the plane on top and the front elevation of bottom.

Fig. 7 b exchanges the movement state diagram of the part process of match plate for using Fig. 1 device, comprises the plane on top and the front elevation of bottom.

Fig. 8 is the front view of squeeze feet about using as the manufacturing installation of the upper and lower molds of the no sandbox of pressurizing unit.

Fig. 9 is the fragmentary cross-sectional view of Fig. 8.

Figure 10 is the A-A profile of Fig. 8.

The plane that Figure 11 cuts open for the part of Fig. 8.

Figure 12 uses the manufacturing installation of the upper and lower molds of no sandbox to come the movement state diagram of the part process of molded mold among Fig. 8.

Figure 13 uses the manufacturing installation of the upper and lower molds of no sandbox to come the movement state diagram of the part process of molded mold among Fig. 8.

Figure 14 uses the manufacturing installation of the upper and lower molds of no sandbox to come the movement state diagram of the part process of molded mold among Fig. 8.

Figure 15 is the right view of relevant structure of second embodiment of mold extracting apparatus 12.

Figure 16 is the front elevation of second embodiment of mold extracting apparatus 12 in the manufacturing installation of the upper and lower molds of no sandbox.

Figure 17 is the right view of Figure 16.

The movement state diagram of Figure 18 a extracts a pair of upper and lower molds for the mold extracting apparatus that uses among Figure 15 from a pair of molding top box and molding nowel part process is right view.

The movement state diagram of Figure 18 b extracts a pair of upper and lower molds for the mold extracting apparatus that uses Figure 15 and show from a pair of molding top box and molding nowel part process is right view.

The movement state diagram of Figure 19 a extracts a pair of upper and lower molds for the mold extracting apparatus that uses Figure 15 and show from a pair of molding top box and molding nowel part process is right view.

The movement state diagram of Figure 19 b extracts a pair of upper and lower molds for the mold extracting apparatus that uses Figure 15 and show from a pair of molding top box and molding nowel part process is right view.

The movement state diagram of Figure 20 extracts a pair of upper and lower molds for the mold extracting apparatus that uses Figure 15 and show from a pair of molding top box and molding nowel part process is right view and front view.

The specific embodiment

Embodiment to the manufacturing installation of the upper and lower molds of no sandbox of the present invention is described in detail hereinafter with reference to accompanying drawing.

As shown in Figure 1-Figure 3, the manufacturing installation of the upper and lower molds of no sandbox, it uses goes up lower extrusion plate as pressurizing unit.

The manufacturing installation of the upper and lower molds of no sandbox structurally comprises:

Board 1 with rectangular shape of inner space;

The two pairs of molding top boxs and the

molding nowel

2,3,2,3 that is provided with at sidewall that molding sand is blown into mouthful respectively;

By transporting of conveyer 4, match plate 5 can come in and go out a pair of molding top box in two pairs of molding top boxs and

molding nowel

2,3,2,3 and the space between the

molding nowel

2,3;

Molding sand pressurizing unit 9 is by a pair of molding top box and this match plate 5 of

molding nowel

2,3 clampings, and support is as the last

lower extrusion plate

6,7 of pressurizing unit, should go up

lower extrusion plate

6,7 can come in and go out respectively molding top box and

molding nowel

2,3 no match plate 5 place's peristomes, it can be that rotate in vertical plane clockwise or counterclockwise at the center with the back shaft on the board 18 that clamping has the molding top box of match plate 5 and

molding nowel

2,3, and then being in plumbness or level, this pressurizing unit 9 supports.

Be positioned at horizontal direction, rotation drives the cylinder 10 as rotating driving device of this molding sand pressurizing unit 9 clockwise or counterclockwise;

Molding sand device for blowing 11 is blown into mouth by molding sand molding sand is blown in a pair of molding top box and the

molding nowel

2,3, and this molding top box and

molding nowel

2,3 are owing to the elongation action of cylinder 10 is horizontal;

Mold extracting apparatus 12, its upper and lower molds that will agree with is mutually transferred to from a pair of molding top box and the

molding nowel

2,3 that are arranged in level;

Sandbox whirligig 13, it is between molding sand pressurizing unit 9 and mold extracting apparatus 12 in level, rotate molding top box and

molding nowel

2,3 that two pairs of levels are arranged alternately, off and on, this sandbox whirligig 13 can also lifting molding top box 2.

And, as shown in Figure 1, a pair of molding top box and

molding nowel

2,3 in the two pairs of molding top boxs and the

molding nowel

2,3,2,3, forward and backward lateral surface at molding top box 2 vertically is provided with a pair of connecting rod 14 respectively, 14, molding nowel 3 can be in 14,14 slips of connecting rod.We can say that also molding nowel 3 is to hang over connecting

rod

14,14 lower ends.And the central part of the forward and backward lateral surface of molding top box 2 and the right side part of forward and backward lateral surface that is positioned at the molding nowel 3 of molding sand pressurizing unit 9 lateral location are respectively equipped with jut 2a, 2a, 3a, 3a.

As shown in Figure 1, the conveyer 4 of match plate 5 structurally comprises:

Be arranged at the loop component 15 of back shaft 8 outer surfaces of above-mentioned molding sand pressurizing unit 9;

Be connected in the cylinder 16 of molding sand device for blowing 11 matrixes bottom one end, piston rod one end of this cylinder 16 can link to each other with loop component 15, and free to rotate;

Front end is being fixed the

cantilever

17,17 of the pair of cross support structure of loop component 15;

Can carry match plate 5 to the left and right direction do free reciprocating hanging type travelling carriage 45.

Stretching motion by cylinder 16,

cantilever

17,17 can rotate up and down, and travelling carriage 45 can move into match plate 5 or shift out between a pair of molding top box and

molding nowel

2,3 on the molding sand pressurizing unit 9 of level (with reference to figure 5-Fig. 7) by

rail

46,47.

And by molding top box 2, travelling carriage 45 descends more short-range while, and

cantilever

17,17 can rotate up and down by the stretching motion of cylinder 16, and

cantilever

17,17 can be connected on the travelling carriage 45, or takes off from travelling carriage 45.

And, as shown in Figure 1, in the molding sand pressurizing unit 9, be positioned on the back shaft 8 of center upper portion of board 1 runing rest 18 is arranged, this runing rest 18 can be done clockwise or counterclockwise motion in vertical plane, the right flank direction of this support 18 vertically extends pair of

guide rods

19,19,

guide rod

19,19 has certain intervals with support 18 on fore-and-aft direction.

Upper space between the

guide rod

19,19 is provided with and is anti-L shaped lifting support 20, and the bottom in space also is provided with and is anti-L shaped lifting support 21 between the

guide rod

19,19, and lifting

support

20,21 can be free to slide respectively by the support of one.This lifting

support

20,21 is flexible by the cylinder that makes progress 22 that is equipped with on the runing rest 18 and downward cylinder 23, do mutually near and away from motion.

This rail 46 is installed on the runing rest 18, and when a pair of molding top box and molding nowel were in level, travelling carriage 45 was guided by rail 46.

On molding

top box

2,2, be respectively equipped with the rail 47 that guided slidable frame 45 slides, when molding

top box

2,2 rose, this rail 47 can reach equal height (with reference to figure 5-Fig. 7) with rail 46.

And, on lifting support 20, be provided with two

cylinders

24,24 that make upper extrusion board 6 advance and retreat, on lifting support 21, be provided with two

cylinders

25,25 that make lower extrusion plate 7 advance and retreat.

Lifting

support

20,21 is respectively equipped with the horizontal plane that a size enough promotes molding top box and

molding nowel

2,3 respectively.

Molding sand device for blowing 11 is positioned at the left at the top of board 1, and is made of two fluffing of moulding sand jars 27,27, utilizes low-pressure compressed air that molding top box and

molding nowel

2,3 are carried out molding sand filling (fluffing of moulding sand filling) respectively independently.

The size of the air pressure of low-pressure compressed air is that 0.05Mpa to 0.18Mpa is good.Can mix use with subatmospheric air by being connected with the Reduced pressure source (not shown).Fluffing of moulding sand jar 27,27 both can be controlled it respectively by two devices, also can unify control to it by a device.

On mold extracting apparatus 12, be provided with can enter the molding top box that agrees with up and down, be positioned at horizontal level and

molding nowel

2,3 extract plate 28, it is connected with piston rod one end of cylinder 29, extract the stretching motion of plate 28 by cylinder 29 and can carry out lifting,

Extract plate 28 below be provided with mold brace table 30, mold brace table 30 support the molding top boxs with

molding nowel

2,3 so that the taking-up mold.Flexible retractor device 32 can move up and down mold brace table 30 by the expanding-contracting action of cylinder 31.Simultaneously, because the existence of retractor device 32 also there is no need groove to be set (with reference to figure 2) for mold extracting apparatus 12.

On sandbox whirligig 13, the gyroaxis 33 of Zhi Xianging is arranged on the board 1 up and down, and can freely horizontally rotate.The upper end of gyroaxis 33, be positioned at board 1 on the output shaft of generator 34 be connected, by the driving of generator 34, gyroaxis 33 can be according to Rotate 180 degree clockwise or counterclockwise.And the top of gyroaxis 33 is provided with support component 35, with support component 35 keep at a certain distance away downwards, vertically be provided with two pairs of paired guide rods 36,36.These two pairs of

guide rods

36,36 are the center left-right symmetry with gyroaxis 33.

Be respectively equipped with the jut 2a that can hang molding top box 2 on two pairs of

guide rods

36,36, the last suspension arrangement 37 of 2a, suspension arrangement 37 can move by easy on and off on this.Last suspension arrangement 37 is individually fixed in the upper end of the piston rod of the cylinder 38 on the gyroaxis 33, and suspension arrangement 37 can carry out lifting by the expanding-contracting action of cylinder 38 on each.

The lower end of two pairs of

guide rods

36,36 is provided with the jut 3a that can hang molding nowel 3, the following suspension arrangement 39 of 3a.

Number in the figure 40 has shown the device that takes out upper and lower molds, and upper and lower molds takes out in molding top box and

molding nowel

2,3 by mold brace table 30.

Shown in Fig. 8-14, with squeeze feet up and down as about the schematic diagram of manufacturing installation of upper and lower molds of no sandbox of pressurizing unit.

Squeeze feet up and down is as the manufacturing installation of the upper and lower molds of the no sandbox of pressurizing unit up and down and the difference that uses last lower extrusion plate as the manufacturing installation of the upper and lower molds of the no sandbox of pressurizing unit: a plurality of

squeeze feet

6a, 6a, 7a, the 7a conduct is to the replacement means of the last

lower extrusion plate

6,7 of the peristome extruding of molding top box and

molding nowel

2,3 no match plates 5, the peristome of can come in and go out respectively molding top box and

molding nowel

2,3.

As shown in Figure 9, last lifting support 20 is provided with a plurality of cylinders 24 ', 24 ' that can make upper extrusion board 6 ' advance and retreat, and lifting support 21 is provided with a plurality of cylinders 25 ', 25 ' that can make lower extrusion plate 7 ' advance and retreat down.And,

last squeeze feet

6a, 6a passes through cylinder 6b, the stretching motion of 6b, following squeeze feet 7a, 7a is by cylinder 7b, and the stretching motion of 7b can be advanced and retreat respectively, and this also is one of them difference.

Upward lower extrusion plate is identical as the manufacturing installation of the upper and lower molds of the no sandbox of pressurizing unit with use, on lifting

support

20,22 horizontal plane separately, is respectively equipped with the horizontal plane that a size enough promotes molding top box and

molding nowel

2,3 respectively.

More than will use squeeze feet up and down to go up lower extrusion plate and be illustrated with using as the difference of the manufacturing installation of the upper and lower molds of the no sandbox of pressurizing unit as the manufacturing installation of the upper and lower molds of the no sandbox of pressurizing unit up and down, except explanation herein, the formation of these two kinds of devices is identical.

Below, describe for second embodiment that may be assembled in the mold extracting apparatus 12 in these two kinds of devices.

Shown in Figure 15,16, this device structurally comprises:

Can lifting, and can slowly insert rectangular plate shape mold bracing or strutting arrangement 119 in the molding nowel 3;

This mold bracing or strutting arrangement 119 has the conduct following pneumatic cylinder 120 of fluid cylinder use down, and it can make 119 liftings of mold bracing or strutting arrangement;

This time pneumatic cylinder 120 has the liftable supporter 121 that can make its lifting;

Liftable supporter 121 has the conduct toggle mechanism 122 of Foldable telescopic mechanism use down, and it can make liftable supporter 121 liftings;

The top of mold bracing or strutting arrangement 119 is provided with rectangular plate shape mold ejecting device 123 can lifting and that can slowly insert molding nowel 2;

The last hydraulic cylinder 124 that the fluid cylinder uses in the conduct that these mold ejecting device 123 tops are provided with, it makes 123 liftings of mold ejecting device;

Should go up hydraulic cylinder 124 and have the liftable supporter 125 that can make its lifting;

Be provided with above this liftable supporter 125 and can be used as the toggle mechanism 122 that Foldable telescopic mechanism uses, it can make liftable supporter 125 liftings.

As shown in figure 15, following toggle mechanism 122 structurally comprises:

Following board 127 with horizontal plane;

Be provided with the agent structure 128,128 of two pairs of toggle mechanisms between the below of the top of this time board 127 and following liftable supporter 121 side by side;

Be provided with the cylinder 129 of horizontal direction between the agent structure 128,128 of two pairs of toggle mechanisms.

By the expanding-contracting action of cylinder 129, following liftable supporter 121 can lifting.

Last toggle mechanism 126 is identical with following toggle mechanism 122 structures, and it comprises:

Following board 130 with horizontal plane;

Be provided with the agent structure 131,131 of two pairs of toggle mechanisms between the top of the below of this time board 130 and last liftable supporter 125 side by side;

Be provided with the cylinder 132 of horizontal direction between the agent structure 131,131 of two pairs of toggle mechanisms.

By the expanding-contracting action of cylinder 132, following liftable supporter 125 can lifting.

Though present embodiment uses down toggle mechanism 122 to use as Foldable telescopic mechanism down respectively, last toggle mechanism 126 also is not limited to this two kinds of devices as the use of last Foldable telescopic mechanism.For example telescoping mechanism can certainly be obtained same effect.

Below, by the manufacturing installation of use pressing plate shown in Figure 1, the patternmaking process of the upper and lower molds of sandbox is described as the upper and lower molds of the no sandbox of pressurizing unit.

At first, after cylinder 16 elongations with conveyer 4, by

cantilever

17,17 transport into match plate 5 between the molding top box and

molding nowel

2,3 that is the level of state, then, and flexible by cylinder 38, make molding top box 2 move short segment distance, the cylinder 16 of conveying device 4 shrinks, and

cantilever

17,17 is rotated along clockwise direction,

cantilever

17,17 were disengaged with being connected of travelling carriage 45, and

cantilever

17,17 returns original state.

The cylinder that makes progress 22 of molding sand pressurizing unit 9 carries out contractile motion with downward cylinder 23, and by lifting

support

20,21, molding top box and

molding nowel

2,3 are approaching mutually.Molding top box and

molding nowel

2,3 when clamping match plate 5, a plurality of cylinders 24 of

squeezer structure

9,24,25,25 extend certain-length respectively, upper extrusion board 6 is inserted into molding top box and molding nowel 2 respectively with

lower extrusion plate

7,3, and form certain molding space, cylinder 10 elongations, molding sand pressurizing unit 9 rotates in the direction of the clock around back shaft 8, simultaneously molding top box and

molding nowel

2,3 with match plate 5 be in horizontal direction, and, molding sand is blown into and mouthful moves up, and the lower end of two fluffing of moulding sand jars 27,27 is blown into mouth link to each other (with reference to figure 4) with this molding sand respectively.

At this moment, when forming up and down two molding spaces, cylinder 10 elongations, molding sand pressurizing unit 9 rotates in the direction of the clock around back shaft 8 also can.

After two molding spaces form, cylinder 10 elongations, molding sand pressurizing unit 9 rotates in the direction of the clock around back shaft 8 also can.

Then, molding sand device for blowing 11 is blown into molding sand in two molding spaces up and down by be blown into mouth from molding sand, then, last

lower extrusion plate

6,7 deeper inserts in two molding spaces up and down and pushes molding sand, and a pair of molding top box and molding nowel and match plate return state in horizontal direction.In this case, extrusion process and the process of returning level carry out earlier any one can, two processes also are fine simultaneously.

And, fill molding sand and extrusion process and be divided into two stages according to following described method and carry out also passable.

Be blown into mouth from molding sand device for blowing 11 by molding sand and be blown into molding sand in two molding spaces up and down, then, a plurality of

cylinders

24,24,25,25 shrink particular length respectively, and 6,7 of last lower extrusion plates retreat, until the peristome of molding top box and molding nowel.

Then, molding sand device for blowing 11 is blown into mouth by molding sand and is blown into molding sand in two molding spaces up and down once more, molding top box and

molding nowel

2,3 and match plate 5 are in when returning horizontal direction, a plurality of

cylinders

24,24,25,25 elongations respectively, last

lower extrusion plate

6,7 enters respectively up and down and pushes molding sand in two molding spaces.

In above-mentioned molding sand filling process, extrusion process, last

lower extrusion plate

6,7 inserts a pair of molding top box and molding nowel respectively, after being blown into molding sand in two molding spaces up and down, molding sand is blown into the last

lower extrusion plate

6,7 of mouth and steps back a segment distance, when perhaps being blown into molding sand in by a pair of two molding spaces up and down of going up that

lower extrusion plate

6,7 inserts respectively that a pair of molding top box and

molding nowel

2,3 constitute, last

lower extrusion plate

6,7 is stepped back a segment distance and also is fine.

As mentioned above, be blown into molding sand in two molding spaces up and down, can improve near the molding hardness of molding top box and molding nowel opening portion by being divided into two stages.

After above-mentioned molding sand filling process, extrusion process, cylinder 22 that makes progress and 23 elongations of downward cylinder,

oscilaltion support

20,22 is separated from each other.

Then, 38 elongations of the cylinder of sandbox whirligig 13 contain the molding top box 2 of filling the mold that extruding forms by molding sand when being sling by last suspension arrangement 37, and molding top box 2 separates with match plate 5.Molding nowel 3 is carried on the following suspension arrangement 39 of sandbox whirligig 13, and cylinder 16 shrinks, and a pair of

cantilever

17,17 is extracted match plate 5 in the middle of molding top box and molding nowel 2,3.Then, the engine 34 of sandbox whirligig 13 drives, gyroaxis 33 rotates with certain angle, in have the molding top box of mold and 2,3 rotations of molding nowel to move to mold extracting apparatus 12 places, next, if necessary, after mold inside is provided with core, in making, the contraction by cylinder 38 have the molding top box 2 of mold to agree with mutually with molding nowel 3 by last suspension arrangement 37.

Because the elongation of the cylinder 31 of mold extracting apparatus 12, mold brace table 30 rises, and molding top box and

molding nowel

2,3 place on the mold brace table 30.Then, after cylinder 29 elongations of mold extracting apparatus 12, extract plate 28, extract plate 28 and descend simultaneously by the flexible of cylinder 31, mold is extracted from molding top box and

molding nowel

2,3 with mold brace table 30 in putting on the molding top box 2.Then mold is released from mold brace table 30 by mold withdrawing device 40.

In said process, before including the molding top box of mold and 2,3 rotations of molding nowel and moving to mold extracting apparatus 12 places, words if necessary, after in the mold of molding, being provided with core, there is the molding top box of mold to agree with mutually in employing makes with quadrat method, mold is extracted with

molding nowel

2,3.

Below the exchange sequence of match plate 5 in the manufacturing installation of the upper and lower molds of no sandbox is described.

At first, shown in Fig. 5 a, the cylinder 38 of sandbox whirligig 13,38 elongations, molding

top box

2,2 is by

last suspension arrangement

37,37 sling respectively after, cylinder 16 elongations of conveyer 4 are rotated a pair of

cantilever

17,17 in the counterclockwise direction, and the travelling carriage 45 that will carry match plate 5 (A) is moved on the rail 47 of molding top box 2 by rail 46.Match plate 5 (A) is moved into by the molding top box 2 in left side, then shown in Fig. 5 b, stretching motion by cylinder 38, when molding top box 2 moves up and down in short distance, the cylinder 16 of conveyer 4 shrinks a pair of

cantilever

17,17 is rotated in a clockwise direction, a pair of

cantilever

17,17 with the releasing that is connected of travelling carriage 45, return original state.Match plate 5 (B) is hung oneself down by rail by conveyer, and waits in a side of mold extracting apparatus 12 and to be exchanged, and travelling carriage 45 carrying match plates 5 (B) move on the position relative with the rail 47 of the trussell 3 on mold extracting apparatus 12 right sides.

Shown in Fig. 6 a, the travelling carriage 45 that moves in the rail 47 of the molding top box 2 on mold extracting apparatus 12 right sides in opposite directions, the rail 47 of the molding top box 2 by the top, right side is moved into the match plate 5 (B) on right side the molding top box 2 on right side by manually operating.Then, shown in Fig. 6 b, drive the engine 34 of sandbox whirligig 13, match plate 5 (A) and match plate 5 (B) rotate respectively and move, originally the match plate 5 (A) that is positioned at molding sand pressurizing unit 9 places is moved on the position of mold extracting apparatus 12, make and the former match plate 5 (B) that is positioned at mold extracting apparatus 12 places moves to a side of molding sand pressurizing unit 9.

Shown in Fig. 7 a, because the expanding-contracting action of cylinder 38, when the molding top box 2 in left side moves up and down in short distance, cylinder 16 elongations of conveyer 4, a pair of

cantilever

17,17 is rotated in the counterclockwise direction, carry the travelling carriage 45 and a pair of cantilever 17 of match plate 5 (B), 17 connect, and the travelling carriage 45 that carries match plate 5 (A) is by the outer to the right side shifting of the rail 47 of molding top box 2.Then, shown in Fig. 7 b, the cylinder 16 of conveyer 4 shrinks, make a pair of

cantilever

17,17 are rotated in a clockwise direction, and the travelling carriage 45 that carries match plate 5 (B) is moved on the rail 46 by the rail 47 of molding top box 2, and match plate 5 (B) is extracted from molding top box 2.The travelling carriage 45 that carries match plate 5 (A) of the outer side shifting suitable place of transporting by conveyer to the right, the exchange work of match plate has also just been finished.

Below from state shown in Figure 8, describe as the job order of the manufacturing installation of the upper and lower molds of the no sandbox of pressurizing unit up and down using up and down squeeze feet.

At first, cylinder 16 elongations of conveyer 4 are moved into match plate 5 between the molding top box and

molding nowel

2,3 of level by a pair of

cantilever

17,17.

The cylinder that makes progress 22 of molding sand pressurizing unit 9 and downward cylinder 23 shrink, and make

oscilaltion support

20,21 approaching mutually; Cylinder 38 is flexible simultaneously, and suspension arrangement 37 is descended, and molding top box and

molding nowel

2,3 are approaching mutually; Molding top box and

molding nowel

2,3 when clamping match plate 5, a plurality of cylinders 24 of molding

sand pressurizing unit

9,24,25,25 extend certain-length respectively, feasible conduct is the 6a of squeeze feet up and down of pressurizing unit up and down, 6a, 7a, 7a insert molding top box and molding nowel 2 respectively, certain depth in 3, form two molding spaces up and down, cylinder 10 elongations, molding sand pressurizing unit 9 is that the center is rotated in a clockwise direction with back shaft 8, molding top box and

molding nowel

2,3 with 5 one-tenth plumbness of match plate the time, molding sand is blown into mouthful is moved upward, make the hypomere of molding sand device for blowing 11 be blown into mouth and join respectively with molding sand.

At this moment, when two molding spaces form up and down, cylinder 10 elongations, molding sand pressurizing unit 9 is that the center is rotated in a clockwise direction with back shaft 8; After also two molding spaces form up and down, cylinder 10 elongations, molding sand pressurizing unit 9 is that the center is rotated in a clockwise direction with back shaft 8.

Next, as the 6a of squeeze feet up and down of pressurizing unit up and down, 6a, 7a, 7a extends certain-length respectively, with reach molding sand before extruding and the match plate 5 after the extruding and corresponding with it a plurality of as about the 6a of squeeze feet up and down of pressurizing unit, 6a, 7a, the ratio at the interval between 7a infinitely is close to good.

That is to say that shown in Figure 12 b, molding sand is before extruding, the model part of match plate 5 and corresponding with it a plurality of conducts are the 6a of squeeze feet up and down of pressurizing unit up and down, 6a, and the interval note that 7a, 7a form is respectively made A, B.And shown in Figure 12 c, a, b are made in extruding back note at interval, the relation of its a/A and b/B, and it is good more to approach a/A=b/B more.

In other words, the part of model part projection, squeeze feet 6a up and down, 6a, 7a, 7a stretch out and the amount of the molding sand that pushes less, the part of model part depression, squeeze feet 6a up and down, 6a, 7a, 7a stretch out and the amount of the molding sand that pushes more.

By molding sand device for blowing 11, be blown into by the molding sand of molding top box and

molding nowel

2,3 and mouthful fill molding sand in two molding spaces up and down.Then, molding top box and

molding nowel

2,3 and match plate 5 return level, a plurality of

cylinders

24,24,25,25 extend certain-length respectively, feasible conduct is the 6a of squeeze feet up and down of pressurizing unit up and down, 6a, 7a, 7a further inserts in molding top box and the

molding nowel

2,3, respectively the molding sand in the molding space is up and down pushed.Then, squeeze

feet

6a, 6a, after 7a, 7a shrank respectively, a plurality of

cylinders

24,24,25,25 extended respectively, squeeze feet 6a up and down, 6a, 7a, 7a pushes once more.By this method of operating, the basic homogeneous of mold density of molding, and the close squeeze feet 6a up and down that does of this upper and lower molds, 6a, 7a, the plane of 7a one side is substantially flat (with reference to figure 12c) also.

Then, cylinder 22 upwards and downward cylinder 23 elongations,

oscilaltion support

20,21 mutually away from, cylinder 38 elongations of sandbox whirligig 13, contain the molding top box 2 of filling out the mold that forms of extruding by molding sand when slinging by last suspension arrangement 37, molding top box 2 separates with match plate 5.Molding nowel 3 is carried on the following suspension arrangement 39 of sandbox whirligig 13, and cylinder 16 shrinks, and a pair of

cantilever

17,17 is extracted match plate 5 in the middle of molding top box and molding nowel 2,3.The engine 34 of sandbox whirligig 13 drives gyroaxis 33 and rotates with certain angle, in have the molding top box of mold and 2,3 rotations of molding nowel to move to mold extracting apparatus 12 places, next, words if necessary, after mold inside is provided with core, in making, the contraction by cylinder 38 have the molding top box 2 of mold to agree with (with reference to Figure 10) mutually with molding nowel 3 by last suspension arrangement 37.

Cylinder 43 elongations of mold bracing or strutting arrangement 30, when mold brace table 44 rises, cylinder 31 elongations, by the effect of lifting platform 42, mold brace table 44 continues to rise, and the molding top box and the

molding nowel

2,3 that contain mold are placed on the mold brace table 44, after cylinder 29 elongations of mold extracting apparatus 12, extract plate 28 and place on the molding top box 2, extract plate 28 and descend simultaneously by the flexible of cylinder 43, mold is extracted from molding top box and

molding nowel

2,3 with mold brace table 44.Cylinder 31 shrinks, and lifting platform 42 continues to descend with mold brace table 44, then by mold withdrawing device 40 mold is released from mold brace table 30.

In said process, in have the molding top box of mold and 2,3 rotations of molding nowel to move to mold extracting apparatus 12 places before, words if necessary, after in the mold of molding, being provided with core, there is the molding top box of mold to agree with mutually in employing makes with quadrat method, mold is extracted with

molding nowel

2,3.

And the effect of step the best is, molding sand is before extruding, the model part of match plate 5 and corresponding with it a plurality of conducts are the 6a of squeeze feet up and down of pressurizing unit up and down, 6a, the interval note that 7a, 7a form is respectively made A, B, shown in Figure 12 c, a, b are made in extruding back note at interval, the relation of its a/A and b/B, and it is good more to approach a/A=b/B more.By this method of operating, the basic homogeneous of mold density of molding, and the conduct of this upper and lower molds 6a of squeeze feet up and down of pressurizing unit up and down, 6a, 7a, the face of 7a one side is substantially flat also, is limited to this method but have more than.For example, shown in Figure 13 a to Figure 13 b, make the model part of the match plate 5 a plurality of conducts relative 6a of squeeze feet up and down of pressurizing unit up and down with direction with it, 6a, 7a, after molding sand is convenient to flow in the space that 7a forms respectively, up and down in the molding space, is blown into by the molding sand of molding top box and molding nowel 2,3 and mouthful is blown into molding sand and carries out molding and also can.

And, squeeze feet 6a up and down, 6a, 7a forms among the 7a when being convenient to space that molding sand flows, also can be at the spout place (particularly spout throat) of the fluffing of moulding sand jar of sand fluidity difference, the ejection air is to reduce the rubbing action of sand and sidewall.

Shown in Figure 14 a-Figure 14 b by molding top box and

molding nowel

2,3 and squeeze feet 6a up and down, 6a, 7a, after 7a constitutes the molding space of plumbness, be blown into by the molding sand of molding top box and

molding nowel

2,3 and mouthful be blown into molding sand in two molding spaces up and down, then cylinder 6b, 6b, 7b, 7b extends respectively, squeeze feet 6a up and down, 6a, 7a, 7a enter respectively up and down and in the molding space molding sand are pushed.6b then, 6b, 7b, 7b shrinks respectively, squeeze feet 6a up and down, 6a, 7a is after 7a retreats, be blown into mouth by molding sand once more and be blown into molding sand in two molding spaces up and down, then squeeze

feet

6a, 6a, 7a, the plane of respectively pushing of 7a is positioned on the same horizontal plane, by a plurality of

cylinders

19,19,20,20 elongation, squeeze feet 6a up and down, 6a, 7a, 7a can be used as an integral body and the molding sand in two molding spaces is up and down pushed also are fine.

And, incite somebody to action squeeze feet 6a up and down, 6a, 7a, 7a and cylinder 6b, the structure that 6b, 7b, 7b are combined into an integral body also can structurally be included.

On the order of exchange match plate, use pressing plate as the manufacturing installation of the upper and lower molds of the no sandbox of pressurizing unit with use squeeze feet up and down as about the manufacturing installation of upper and lower molds of no sandbox of pressurizing unit be identical.

Below according to Figure 15-Figure 20, in the time of to the relative assembly of second embodiment that uses mold extracting apparatus 12, the order in the process that mold is extracted describes.

After the molding sand of filling in two molding spaces up and down pushed, lifting

support

20,21 is separated from each other, cylinder 38 elongation of sandbox whirligig 13, when including the molding top box 2 that the molding sand extruding is formed mold and sling by last suspension arrangement 37, molding top box 2 separates with match plate 5.Molding nowel 3 is carried on the following suspension arrangement 39 of sandbox whirligig 13, and match plate 5 is extracted in the middle of molding top box and

molding nowel

2,3.

The engine 34 of sandbox whirligig 13 drives gyroaxis 33 and rotates with certain angle, in have the molding top box of mold and 2,3 rotations of molding nowel to move to mold extracting apparatus 12 places, words if necessary, after mold inside is provided with core, the contraction of cylinder 38 has the molding top box of mold to agree with mutually with molding nowel 3 by last suspension arrangement 37 in making.

Shown in Figure 18 a, toggle mechanism 126 up and down, 122 cylinder 132,129 shrink respectively, and oscilaltion platform 125,121 is mutually near being held molding top box and molding nowel 2, after 3, shown in Figure 18 b, pneumatic cylinder 120 elongations make mold bracing or strutting arrangement 119 contact the lower surface of bottom mold, follow shown in Figure 19 a, hydraulic cylinder 124 elongations, mold ejecting device 123 is contacted with the upper surface of trussell, and shown in Figure 19 b, the elongation of hydraulic cylinder 124 causes the contraction of pneumatic cylinder 120, mold ejecting device 123 descends with mold bracing or strutting arrangement 119, afterwards as shown in figure 20, the cylinder 132 of toggle mechanism 126,122 up and down, 129 elongations respectively, oscilaltion platform 125,121 is disconnected from each other, upper and lower molds A, B can be from molding top box and molding nowel 2, extract in 3.

In said process, words if necessary, after in the mold of molding, being provided with core, there are the molding top box of mold and 2,3 rotations of molding nowel to move to mold extracting apparatus 12 places with interior, there is the molding top box of mold to agree with mutually in the employing said method makes, mold can be extracted with

molding nowel

2,3.

Claims

1, a kind of manufacture method of upper and lower molds of the no sandbox that utilizes two pairs of molding top boxs and molding nowel, described two pairs of molding top boxs and molding nowel are positioned at and are respectively equipped with molding sand on level and its sidewall and are blown into mouth, described two pairs of molding top boxs and molding nowel alternately, off and on the rotation, this method comprises:

(1) centering in described two pairs of molding top boxs and molding nowel is inserted the also process of clamping match plate;

(2) pressurizing unit inserts the process of the peristome of a pair of molding top box and molding nowel with two molding spaces about forming respectively up and down, and wherein pressurizing unit and this match plate direction are oppositely arranged up and down;

(3) this rotates to plumbness to molding top box, molding nowel and match plate, and molding sand is blown into the process that mouth is moved upward;

(4) be blown into the process that mouth is filled molding sand up and down in two molding spaces by molding sand;

(5) two molding spaces were also pushed the molding sand in the space respectively about pressurizing unit entered up and down, and this returns to the process of level to molding top box, molding nowel and match plate;

(6) this is to the molding top box, the molding nowel that include mold and after match plate separates, with match plate from this process to extracting molding top box, the molding nowel;

(7) the molding top box that the other a pair of wherein mold moulding in abovementioned steps of a pair of molding top box, the molding nowel that includes mold of rotation, and rotation forms and extracted, the rotary course of molding nowel;

(8) this process that the molding top box that contains mold and molding nowel are agreed with mutually;

(9) process that mold is extracted from a pair of molding top box that agrees with mutually and molding nowel.

2, method according to claim 1 is characterized in that,

Pressurizing unit inserts molding top box and molding nowel does not respectively up and down have the peristome at match plate place the process (2) in two molding spaces rotates to plumbness with a pair of molding top box, molding nowel with match plate to form up and down, and molding sand is blown into a mouthful process (3) that is moved upward to carry out simultaneously.

3, method according to claim 1 is characterized in that,

Pressurizing unit enters two processes that the molding spaces are also pushed the molding sand in the space respectively up and down up and down, and a pair of molding top box, molding nowel and match plate return to the process of level to carry out simultaneously.

4, method according to claim 1 is characterized in that, pressurizing unit about the lower extrusion plate conduct in the use.

5, method according to claim 1 is characterized in that, uses the pressurizing unit up and down of squeeze feet conduct up and down.

6, method according to claim 4 is characterized in that,

Also comprise after filling the process of molding sand up and down in two molding spaces being blown into mouth by molding sand:

(a) go up the process that lower extrusion plate is stepped back certain distance;

(b) be blown into the process that mouth is filled molding sand up and down in two molding spaces once more by molding sand.

7, method according to claim 6 is characterized in that,

The process (a) that last lower extrusion plate is stepped back certain distance is carried out simultaneously with the process (b) that is blown into the molding sand that mouth fills in two molding spaces up and down once more by molding sand.

8, method according to claim 5 is characterized in that,

Pressurizing unit inserts peristome that molding top box and molding nowel do not have a match plate place respectively also to comprise assignment procedure in the process (2) that forms two molding spaces up and down up and down: to the model part of match plate and with it the relative a plurality of intervals between the squeeze feet up and down of direction be provided with respectively so that described each at interval before the molding sand extruding with push after ratio all identical.

9, method according to claim 5 is characterized in that,

Pressurizing unit inserts peristome that molding top box and molding nowel do not have a match plate place respectively also to comprise forming process in the process (2) that forms two molding spaces up and down up and down: make the model part of match plate and with it relative a plurality of of direction form a space design respectively between squeeze feet up and down so that molding sand can easily flow in this space design.

10, method according to claim 9 is characterized in that,

Described forming process makes the model part of the match plate a plurality of up and down squeeze feet relative with direction with it form a space design respectively, so that molding sand can easily flow in this space design, this forming process also comprises: spray into air at the spray nozzle part of fluffing of moulding sand jar and the part of sand fluidity difference, to reduce the process of the frictional resistance between molding sand and the fluffing of moulding sand pot sidewall.

11, method according to claim 5 is characterized in that,

Being blown into mouth by molding sand fills the process (4) of molding sand and pressurizing unit up and down up and down in two molding spaces and enters up and down two molding spaces and respectively the molding sand in the space is pushed, a pair of molding top box, molding nowel and match plate return in the process (5) of level, also include:

(a) be blown into mouthful first molding sand of in by vertical match plate, molding top box, molding nowel, pressurizing unit constitutes up and down molding space, filling molding sand by molding sand and be blown into process;

(b) first extrusion process of molding sand being pushed as molding space about the squeeze feet up and down of pressurizing unit enters up and down;

(c) as after squeeze feet retreats up and down of pressurizing unit up and down, second molding sand of filling molding sand is blown into process in molding the space in up and down;

(d) be positioned on the same horizontal plane as the plane of respectively pushing of the squeeze feet up and down of pressurizing unit up and down, and can be used as the second molding sand extrusion process that an integral body is pushed the molding sand in two molding spaces up and down.

The manufacturing installation of the upper and lower molds of the no sandbox that 12, agrees with mutually, it comprises:

(1) the two pairs of molding top boxs that are positioned at level and the molding nowel that are respectively equipped with on the sidewall that molding sand is blown into mouthful;

(2) by means of conveyer, the match plate between wherein a pair of in these two pairs of molding top boxs and molding nowel of can coming in and going out;

(3) molding sand pressurizing unit, this molding sand pressurizing unit supports molding top box and the molding nowel that a pair of clamping has match plate, this molding sand pressurizing unit also supports come in and go out respectively molding top box and molding nowel of pressurizing unit does not up and down have the peristome at match plate place, and with the back shaft on the board is that rotate in vertical plane clockwise or counterclockwise at the center, so that clamping has the molding top box of match plate and molding nowel to be in plumbness or level;

(4) rotating driving device that this molding sand pressurizing unit is driven;

(5) be blown into mouthful the molding sand device for blowing that in the molding top box of plumbness and molding nowel, is blown into molding sand by the driving of rotating driving device from molding sand;

(6) the mold extracting apparatus that a pair of mold that agrees with mutually and be in level in molding top box and the molding nowel is extracted in molding top box and the molding nowel;

(7) between the molding sand pressurizing unit and mold extracting apparatus of level, rotate molding top box and molding nowel that two pairs of levels are arranged alternately, off and on, make the sandbox whirligig of molding top box lifting.

13, device according to claim 12 is characterized in that, pressurizing unit about the lower extrusion plate conduct in the use.

14, device according to claim 12 is characterized in that, uses the pressurizing unit up and down of squeeze feet conduct up and down.

15, according to claim 12 or 13 or 14 described devices, it is characterized in that,

Above-mentioned mold extracting apparatus comprises:

(a) make the mold extracting apparatus can lifting, and slowly insert the mold bracing or strutting arrangement of the rectangular plate shape of sandbox inside;

(b) be arranged at the following fluid cylinder of this mold bracing or strutting arrangement below;

(c) be arranged at the following lifting platform that makes it lifting of this time fluid cylinder below;

(d) be arranged at the following Foldable telescopic machine of this time lifting platform below;

(e) be arranged at mold bracing or strutting arrangement top certain distance, can rectangular plate shape mold ejecting device lifting and that can slowly insert the molding nowel;

(f) be arranged at the last fluid cylinder of this mold extracting apparatus top;

(g) be arranged at the top of fluid cylinder on this can lifting last lifting platform;

(h) be arranged at the last Foldable telescopic machine above the lifting platform on this.

16, device according to claim 15 is characterized in that,

In the mold extracting apparatus in the manufacturing installation of the upper and lower molds of no sandbox, last Foldable telescopic machine is toggle device or retractor device with following Foldable telescopic machine.

17, according to claim 15 or 16 described devices, it is characterized in that,

In the mold extracting apparatus of the manufacturing installation of the upper and lower molds of no sandbox, last fluid cylinder is a hydraulic cylinder, and following fluid cylinder is a pneumatic cylinder.

18, a kind of method that exchanges match plate as the sandbox whirligig in claim 12 or the 13 or 14 described arbitrary manufacturing installations that adopts is characterized in that this method comprises:

(a) process that two molding top boxs in two pairs of molding top boxs and the molding nowel are risen;

(b) match plate is moved into the process of the molding top box that is positioned at molding sand pressurizing unit one side by a travelling carriage;

(c) match plate is moved into the process of the molding top box that is positioned at mold extracting apparatus one side by travelling carriage;

(d), make the match plate rotation that is positioned at molding sand pressurizing unit one side move to mold extracting apparatus one side, and the match plate rotation that will be positioned at mold extracting apparatus one side move to the process of molding sand pressurizing unit one side by the sandbox whirligig;

(e) process that two match plates after rotation is moved are extracted by molding sand pressurizing unit and mold extracting apparatus place.