JP2009269044A - Pushing frame apparatus for pouring molten metal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pushing frame apparatus for pouring molten metal, which dispenses with the weight for pushing the upper surface of a sand mold by a simple constitution and secures a free degree of design for molten metal pouring line. <P>SOLUTION: The pushing frame apparatus includes: a body supporting frame which is generally assembled with a plurality of base bodies oppositely disposed at respective outer sides of the opposite side surfaces of the sand mold; the plurality of movable pushing frames respectively direct-opposite-disposed at the opposite side surfaces of the sand mold disposed in the center position in the inner part of the main body supporting frame; and an approaching synchronized pushing mechanism approachingly pushing the movable pushing frames to the opposite side surfaces of the sand mold in synchronization with the descending movement of the main body supporting frame. The movable pushing frame is provided with: side surface close contact walls which come in close contact with the opposite side surfaces of the sand mold from the sideways; and upper surface close contact walls which are generally connected to the close contact walls as L-shape and closely abutted on the upper surface of the sand mold at the time of close contacting of the close contact wall with the side surface of the sand mold. Since the side surfaces and the upper surface of the sand mold, are simultaneously pushed at the descending time, the weight for holding the sand mold-pushing, is unnecessary. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a sand mold press frame device when a sand mold formed by a molding machine is supplied to a pouring line and poured.

  Conventionally, as an example of mold transportation in a casting operation, a mold transportation facility of Patent Document 1 has been proposed. In the mold transport facility of this Patent Document 1, the surface plate carriages are arranged in series on the molding line, core set line, upper frame line, etc., and the molded molds are placed on the carriages. It is made to convey between these processes. The casting mold is a sand mold, and it is necessary to transport the mold in accordance with the characteristics of the sand mold. When the sand mold is poured after molding, for example, molten metal of around 1400 ° C. flows into the casting cavity of the sand mold. For this reason, the gas between the sand grains expands and the entire sand mold expands. For this reason, if it is performed without any treatment during pouring, the sand mold is cracked or cracked and the molten metal inside flows out to hinder normal casting. There are two types of conveyance of the sand mold conveyance in the pouring line which is performed by solving this problem. First, a jacket frame F having a taper wall on the inner surface of a sand mold on a carriage is fitted on a sand mold Mm having a taper side wall to suppress expansion of the sand mold in the peripheral radial direction, and 100 kg to 200 kg, for example, on the sand mold. It is a type that suppresses upward expansion by placing a certain weight W (see FIG. 15). In this case, the carts are arranged in a row, but they can be moved individually. Therefore, it is easy to perform automatic pouring at a fixed point, length adjustment of the line length, recombination to small-scale multi-product line, etc. Have The other one is as shown in Patent Document 2 or FIG. 16, in which the sand mold M is arranged so as to closely contact (C) in the front and rear surfaces in the row direction, and only the left and right open surface portions are sandwiched from the outer surface. A mechanism for clamping (P) is provided to cope with the expansion of the sand mold. In the method of Patent Document 2, since the sand molds are arranged in close contact with each other, a large number of sand molds to be supplied to the pouring line is secured, and for mass production, the production efficiency is improved and the sand molds are arranged more closely. It is excellent in that the hot water work is homogenized and the quality is stabilized. Incidentally, FIG. 14 shows an example of the first type described above, which is an example of casting in which the carriages 300 are arranged in series and are cycled by the reflux conveyor 302. In the figure, a sand mold formed by the molding unit 304 is loaded with a jacket and a weight loader / unloader unit 306, and is moved to a pouring step 308. Reference numerals 310 and 312 denote pusher cylinders and cushion cylinders for pushing the carriage 300, and reference numerals 314 and 316 denote pusher cylinders and cushion cylinders for the cooling line, which are driven by hydraulic units 318 and 320, respectively. The sand mold after pouring is transferred to the cooling process 324 by the reflux conveyor 302. After the jacket and weight are unloaded by the jacket / weight loader / unloader unit 306, the sand mold is pushed out to the next process.

JP2007-301608A Japanese Examined Sho 62-54575

  In the above-mentioned first type sand mold, the jacket frame is fitted, and the individual carts are transported with weights. The sand molds adjacent to each other in the pouring process are separated from each other, and a large work space is required for the pouring process. However, not only is the weight for holding the upper surface, its mounting equipment, and mounting work necessary, but it is usually made of a thick steel plate with a thickness of about 100 mm. As shown in FIG. 17, when the operator pours molten metal L from the pan T into the sand mold, there is a sand mold gate at the lower part of the pouring hole provided in the weight. There was a risk of work delay, filling of molten metal more than necessary due to hot water measurement errors. In addition, the jacket frame is placed on the sand mold in a state where the close fitting is not complete when it is lowered and fitted onto the sand mold of the taper wall, and this is forced down to weaken the strength of the sand mold, There was a risk of causing a shift in the upper and lower sand molds. Similarly, in the case of the second type sand mold, the front and back contact type of the sand mold requires a weight on the upper surface side of the sand mold, and there is a risk that the specific workability of the mounting apparatus, the mounting work, and the pouring of the molten metal may be reduced. there were. In addition, it is difficult to supply sand molds from the molding machine side with the clamps on the side of the sand mold and the weights on the top surface, and it is not easy to install a small production line or change the length of the line. There were constraints and there was a difficulty with the degree of freedom in design.

  The present invention has been made in view of the above-described conventional problems. One object of the present invention is to eliminate the need for a weight for holding the top surface of the sand mold with a simple configuration, and to reduce the cost. To provide a pouring frame device that allows hot water work to be performed accurately and in a short time, at the same time, allows the sand mold to be mounted on each surface without deviation, and ensures the flexibility of the pouring line design. is there.

  In order to achieve the above-mentioned object, the present invention is a sand-type retaining frame device for pouring into a sand-type casting cavity, and a plurality of base bodies 24 </ b> A arranged to face the outer sides of the opposed side surfaces 500 a of the sand mold 500. , 24B, 24C, 24D are integrally opposed to the main body support frame 20 and the opposing side surface 500a of the sand mold 500 disposed inside the main body support frame and at a substantially central position inside the main body support frame. A plurality of movable presser frames 60, and the proximity of the main body support frame 20 and the movable presser frame 60 being linked to move the movable presser frame 60 close to the opposing side surface 500a of the sand mold 500 in synchronization with the proximity movement of the main body support frame to the sand mold. The movable pressing frame 60 includes a side pressing wall 62 that is in close contact with the opposing side surface 500a of the sand mold 500 from the side, and an L-shaped integral connection to the side pressing wall. A top contact wall 64 that presses the upper surface adhesion in contact with the upper surface 500b of the sand mold when adhesion to sand mold sides 500a of the wall, and a pouring presser frame 10 having a. The proximity movement between the sand mold 500 and the main presser frame device 10 is relative, so that the sand mold side is moved up so that the pouring press frame device including the movable presser frame is finally fitted on the side surface and the upper surface of the sand mold. Alternatively, the main body support frame that supports the movable presser frame may be lowered from above the stationary sand mold and fitted into the sand mold. The movable presser frame is L-shaped and has a structure that can press the side and top of the sand mold at the same time. At the same time, the proximity synchronous push mechanism allows multiple faces to press the side contact wall at a uniform stroke length at the same time. Improve face contact correctly with mental function.

  At that time, the proximity synchronous pressing mechanism 100 retracts the movable presser frame 60 from the side surface of the sand mold and moves the main body support frame 20 close to the sand mold 500 in a suspended state of the main body support frame 20 that supports the movable presser frame 60. And a link connecting device 102 that displaces the movable presser frame 60 so as to press it inward.

  The link connecting device 102 includes a plurality of link pins 104, one end of which is pivotally supported (106) on the main body support frame 20 side and the other end of which is pivotally supported (110) on the movable presser frame 60 side. It is good to have the structure provided with the movable prescription | regulation part 105 which prescribes | regulates a movable range.

  The main body support frame 20 is formed of a quadrangular frame that is disposed so as to surround the periphery of the sand mold 500, and four movable presser frames 60 corresponding to the four base bodies 24A, 24B, 24C, and 24D. It is even better if a is provided.

  Further, the movable defining portion 105 may be formed of a through hole 30 through which the link pin 104 penetrating laterally through each of the base bodies 24A, 24B, 24C, 24D of the main body support frame 20 is passed.

  Moreover, the upper surface close-contact wall 64 is good to protrude in the L-shape from the side surface close-contact wall 62 to such an extent that it does not hang over the gate 502 of the sand mold 500.

  According to the pouring frame device for pouring of the present invention, it is a sand mold retaining frame device when pouring into a sand mold casting cavity, and a plurality of base bodies arranged opposite to each other on the opposite side surfaces of the sand mold are integrated. The assembled main body support frame, a plurality of movable presser frames that are disposed directly opposite to the opposite side surfaces of the sand mold disposed inside the main body support frame and substantially at the inner position, and movable with the main body support frame. A proximity synchronized push mechanism that links the presser frame and presses the movable presser frame close to the opposite side of the sand mold in synchronization with the proximity movement of the main body support frame to the sand mold, and the movable presser frame is disposed on the opposite side of the sand mold. A side contact wall that is in close contact with the side surface and an upper surface contact wall that is integrally connected to the side contact wall in an L shape and that is in close contact with the top surface of the sand mold when pressed to the sand mold side surface and pressed from the top surface. Because it is a configuration, it supports the main body with a simple configuration. The side and top surface of the sand mold can be pressed at the same time simply by fitting the sand mold into the sand mold, eliminating the need for weight to suppress the expansion of the top surface of the sand mold, eliminating the equipment and equipment for mounting it, reducing processes, and overall work. Effects such as time reduction, work cost and manufacturing cost reduction can be achieved. As a result, it is possible to perform pouring work from the top of the sand mold, which is easy to see, even in the individual conveyance line with a trolley in a high accuracy and in a short time, and the surface contact between the sand mold and the presser frame is always correct to stabilize the sand mold strength. Can hold on. Furthermore, the degree of freedom in line design is high, and it is possible to design a free pouring line according to various cast products, production quantities, specifications required for the products, and the like. Further, the present invention can be effectively applied to a continuous automatic pouring apparatus, for example, at a fixed point in an automatic molding line.

  In addition, the proximity synchronous pressing mechanism retracts the movable presser frame from the side surface of the sand mold in the suspended state of the main body support frame that supports the movable presser frame, and moves the movable presser frame inward when the main body support frame is moved closer to the sand mold. By configuring the link connecting device to be displaced so as to be pushed, it is possible to hold and hold the side surface and the upper surface of the sand mold with a very simple structure using the link mechanism without requiring a complicated mechanism or a driving structure.

  The link connecting device includes a plurality of link pins, one end of which is pivotally supported on the main body support frame side and the other end of which is pivotally supported on the movable presser frame side, and a movable defining portion that defines a movable range of the link pin. With the configuration provided, the link connection between the main body support frame and the movable press frame can be specifically realized with a simple configuration.

  Further, the main body support frame is formed of a quadrangular frame disposed so as to surround the periphery of the sand mold, and has a rectangular parallelepiped structure by providing four movable presser frames corresponding to the four bases. Since the four sides of the shaped sand mold are pressed and held at the same time, the sand mold press prior to pouring can be easily performed in a short time for each sand mold on each carriage in the pouring conveyance line by the carriage.

  In addition, since the movable defining portion has a structure including a through hole through which a link pin penetrating in the horizontal direction passes through each base of the main body support frame, the structure for connecting the main body support frame and the movable press frame and the movable press frame by the link pin are used. The push-pushing configuration toward the sand mold side can be realized with a simple configuration.

  Further, since the upper surface close-contact wall protrudes in an L shape from the side surface close wall so as not to hang on the sand-type gate, the upper surface wall is pressed simultaneously with the side wall, and further, the molten metal from the ladle It is possible to secure a pouring operation by securing a pouring port.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The pouring frame device for pouring of the present invention is a supporting means that is mounted before pouring in the pouring line after sand mold making and supports expansion of the sand mold during pouring from the outer surface side. The main feature is that the movable presser frame is pushed to the side of the sand mold and the press on the upper surface of the sand mold and the press on the side are simultaneously performed. In the following, the term “presser” is used to prevent the entire sand mold from expanding due to gas expansion inside the sand mold, rather than actively pushing the side or top of the sand mold to move in that direction. This means that the expansion is suppressed by stretching so as to keep the sand mold shape.

  1 to 13 show an embodiment of the present invention. FIG. 1 is an overall perspective view of a pouring frame device 10 for pouring. In the figure, a pouring frame device 10 for pouring includes a main body support frame 20, a movable press frame 60, and a proximity synchronized push mechanism 100. As shown in FIG. 6, the pouring frame device 10 according to the present embodiment simultaneously pushes, for example, two pairs of opposing side surfaces of a rectangular parallelepiped sand mold 500 that are stacked one above the other, for example, a total of four side surfaces. And the apparatus of the form which presses an upper surface. The sand mold 500 has a rectangular parallelepiped shape, and is constituted by a square mold rather than a so-called taper mold having a tapered side surface. However, the present invention can also be applied to a taper mold type. Further, the present invention can also be applied to a type in which only a pair of opposing side surfaces are pushed and the front and rear surfaces are brought into close contact with each other and supplied to the line, and the weight for preventing expansion can be dispensed with. The sand mold 500 is formed with a casting-shaped casting cavity as a product, and is filled with molten metal through a gate provided in the sand mold shown in FIG.

  In the embodiment, the main body support frame 20 is formed of a metal wall integrated frame with a certain thickness surrounding the periphery of the sand mold 500 in a quadrangle size larger than the plane quadrangle size of the sand mold 500, and the four main body walls 22A and 22B. , 22C, 22D. The main body support frame 20 has a plurality of base bodies 24A, 24B, 24C, and 24D that are lowered from above the sand mold and arranged to face the outer sides of the opposite sides of the sand mold, and are integrally assembled in this embodiment. The four main body walls 22A, 22B, 22C, and 22D serve as bases 24A, 24B, 24C, and 24D, respectively. The main body support frame 20 is a basic structure for pushing the movable presser frame, which will be described later, toward the side surface of the sand frame, and also supports the movable presser frame. In addition to the wall frame structure as in the present embodiment, for example, a metal frame may be assembled to form a framework. 1 and 2, in each of the main body walls 22A, 22B, 22C, 22D of the main body support frame, a total of four through-holes 30 are drilled in the horizontal direction in a combination of two vertically and two pairs on the left and right. Has been. Further, the vertical rod 32 is integrally fixed to the main body walls 22A, 22B, 22C, and 22D on the outer surface side of the through holes so as to partially face the pair of upper and lower through holes 30, respectively. Two vertical rods 32 are attached to one main body wall, one on each of the left and right sides, and a total of eight are provided on the four main body walls. Further, projecting portions 34 project from the upper end portions of the four corners of the main body support frame 20 so as to extend to the long side, and as shown in FIGS. The main body support frame 20 that supports the movable presser frame 60 while being supported from the side is moved up and down and left and right.

  As shown in FIGS. 1, 2, and 4, the movable presser frame 60 is disposed inside the main body support frame 20 so as to directly face the opposed side surfaces of the sand mold 500 disposed at a substantially central position inside the movable support frame 20. The In other words, the movable presser frame 60 is installed on a facing surface that is a rectangular opposing side in a plane, and there are two facing surfaces, four facing surfaces, and the like. Other three surfaces, five surfaces, six surfaces or more are also possible in principle. Moreover, a cylindrical shape with multiple cracks, a tapered frame thereof, and the like are also possible. The movable presser frame 60 is a pressing means that is supported by the main body support frame 20 and is pushed by the weight of the main body support frame 20 due to gravity when it is placed on the sand mold, and directly presses the side surface of the sand mold. For example, it is comprised with the metal plate material similar to a main body support frame. Four movable presser frames 60 are provided corresponding to the base bodies 24A, 24B, 24C, and 24D of the main body support frame, which are separate members from the main body support frame 20, and are connected to the main body support frame 20 by link pins described later. Linked

  In the present embodiment, the movable presser frame 60 further includes a side contact wall 62 and an upper surface contact wall 64. As shown in FIG. 12, the movable presser frame 60 has a height higher than the main body walls 22A, 22B, 22C, and 22D of the main body support frame 20, and is formed in a rectangular size that can be accommodated in the main body support frame. Yes. The side contact walls 62 are in close contact with the opposing side surface of the sand mold from the lateral direction, and push the side surfaces of the sand mold toward the inner side of the sand mold in response to the displacement of the link pin due to the lowering of the main body support frame. The upper surface adhesion wall 64 is integrally connected to the side surface adhesion wall 62 in an L shape at the upper end portion of the side surface adhesion wall 62, and comes into close contact with the upper surface 500b of the sand mold 500 when the side surface adhesion wall adheres to the sand mold side surface 500a. Press down. The side contact wall 62 has a horizontally long rectangular shape. The upper surface adhesion wall 64 is formed to project from the side surface adhesion wall in an L-shape so as not to hang over the gate 502 of the sand mold 500. The top surface of the sand mold can be pressed without making the upper surface close contact wall large, and the gate 502 can be surely visually observed. it can. The top surface adhesion wall 64 has an edge shape in which a trapezoidal convex portion and a concave portion are alternately continued on the leading end side of the L-shaped connection. The shape on the L-shaped tip side is arbitrary, and can be simply set in a straight line shape, a continuous arc shape, or any other shape.

  The proximity synchronous pushing mechanism 100 links the main body support frame 20 and the movable presser frame 60, and synchronizes pushing means that pushes the movable presser frame 60 close to the opposite side surface of the sand mold 500 in synchronization with the lowering operation of the main body support frame 20. In the embodiment, the link connecting device 102 is included. The link connecting device 102 causes the movable presser frame 60 to be retracted from the sand mold side surface 500a when the main body support frame 20 is suspended (see FIG. 9), and when the main body support frame 20 is lowered, the movable presser frame 60 is moved inward. This is a link connecting means between the main body support frame that is displaced so as to be pushed and a movable presser frame. In the embodiment, the link connecting device 102 includes a link pin 104 and a movable defining portion 105.

  Each of the through holes 30 of the main body walls 22A, 22B, 22C, and 22D has one link pin 104 arranged in a horizontal through shape, one end of which is pivotally supported by a vertical rod 32 that protrudes to the outside of the main body wall. It is pivotally supported. Accordingly, 16 link pins 104 having the same shape and the same length are provided corresponding to the number of through holes 30. On the other hand, as shown in FIGS. 2 and 4, a projecting piece 108 projects outward from the outer surface side of the movable presser frame 60, and the other end side of the link pin 104 is pivotally supported by the projecting piece 108. The pivot part 110 is formed. Each one of the movable presser frames 60 is provided with two pairs of left and right, a total of four pivotal support portions 110, and thereby, four movable portions corresponding to the bases 24A, 24B, 24C, and 24D of the main body support frame. The presser frame 60 is connected and supported by a link. As shown in FIGS. 1 and 2, the four movable presser frames 60 surround the sand mold 500 in a square shape in a plane, and further hold the sand mold from the upper surface by the upper surface adhesion wall 64.

  The movable defining portion 105 is a means for defining the movable range of the link pin 104 so that the movement of the link pin via the pivot portions 106 and 110 is performed stably. In the embodiment, the movable defining portion 105 is The through hole 30 through which the link pin 104 penetrating in the lateral direction passes through each base of the main body support frame 20.

  As a result, the movable presser frame 60 is supported by the main body support frame 20 via the link pins 104 in the suspended state of the main body support frame, and is lowered to move the movable presser frame 60 onto the sand mold. When the support frame 20 is placed, the side surface and part of the upper surface of the sand mold are pressed and held at the same time.

  Although not shown, a plurality of air vent grooves in the sand mold are formed on the inner surface side of the movable presser frame 60.

  Next, the operation of the pouring frame device of the embodiment will be described with reference to FIGS. For example, when the pouring frame device 10 of the present embodiment is applied to the pouring line of the cart 300 shown in FIG. 14, the sand mold supplied from the molding unit 304 reaches the loader process of the device 10 of the present application in a mold-matched state. . The main body support frame 20 is supported from the lower surface by the movement receiving frame 36, and is moved upward, laterally moved, and the like, and lowered from the upper position of the sand mold 500 in an aligned state from the upper surface as shown in FIG.

  9 is a schematic view of the gap surrounded by the movable presser frame 60 inside the main body support frame 20 by lowering the main body support frame 20 from the upper position of the sand mold while being received by the movement receiving frame 36 of FIG. In this state, the movable presser frame 60 is still suspended from the main body support frame 20, and the link pins 104 are pivoted on the movable presser frame side. It is in the state which inclined diagonally so that 110 may become low. In this state, there is a gap S1 between the inner surface of the side contact wall 62 of the movable presser wall 60 and the side surface 500a of the sand mold 500, and they are not in close contact with each other. Similarly, a gap S2 exists between the lower surface of the upper surface close-contact wall 64 of the movable presser frame 60 and the upper surface 500b of the sand mold 500, and the two are not yet in close contact with each other. In the suspended state of the main body support frame 20, as shown in FIG. 10, the inner movable presser frame 60 is supported by the link pins and is hung, and the upper surface of the main body support frame is in close contact with the upper surface of the movable presser frame 60. The position is slightly lower than the wall.

  When the main body support frame 20 is further lowered from the position in FIG. 9, the lower surface of the upper surface adhesion wall 64 of the movable presser frame 60 hits the upper surface of the sand mold 500 as shown in FIG. The entire movable presser frame is placed on the sand mold, and the lowering of the movable presser frame 60 stops there. When the main body support frame 20 is further lowered from this state, a force for rotating the lower free end side pivot part 110 side in the k direction around the pivot axis of the high side fixed pivot part 106 of the link pin 104 acts, and the pivot part 106 remains as it is. Is lowered, the lower free end side pivot support part 110 of the link pin 104 is pushed in the direction toward the sand mold side surface. At this time, the self-aligning action works by performing the function of pushing the side contact wall 62 of the movable presser frame 60 inward with the same stroke length at the same time when the four surfaces are simultaneously lowered by the proximity synchronous pressing mechanism 100. , There will be no deviation per surface. FIG. 11 shows a state in which the space S1 between the inner surface of the side contact wall 62 and the sand mold side surface 500a is approached by the pivotal support 110 being slightly pushed by the sand mold side surface.

  Then, when further lowered from the state of FIG. 11, the inner surface of the side contact wall 62 and the sand mold side surface 500a are brought into close contact with each other as shown in FIG. 12, and at this time, the link pin 104 is in a state substantially close to the side. In the state of FIG. 12, the side contact wall 62 and the upper surface contact wall 64 of the movable presser frame 60 are in close contact with the side surface and the upper surface of the sand mold 500 at the same time, and the main body support frame is entirely fitted and supported by the sand mold.

In this state, for example, as apparent from FIGS. 7 and 8, the pouring gate 502 of the sand mold 500 can be visually confirmed from above more clearly, and the accuracy of pouring work from the ladle by the operator can be improved. Therefore, useless molten metal is not used, and the pouring time can be shortened. Furthermore, since the sand mold side surface and upper surface are simultaneously pressed and held by the movable presser frame 60, a weight of several hundred kilograms to be placed on the upper surface is unnecessary, and the equipment and the installation time for mounting it are unnecessary. It becomes. Furthermore, as a result of the correct contact with the surface by the self-aligning action, the sand mold is not weakened and the sand mold is not displaced due to excessive pressure.

The pouring frame device for pouring of the present invention described above is not limited to the above-described embodiment, and any modifications may be made without departing from the essence of the invention described in the claims. Good. In the embodiment, an example in which the present apparatus is lowered from above the sand mold and is attached to the sand mold has been described. However, the sand mold may be raised and fitted to the present apparatus.

  The presser frame device for pouring of the present invention can be effectively used in a pouring process to a sand mold that has been formed.

It is a perspective view of the pouring frame device for pouring concerning a 1st embodiment of the present invention. It is a top view at the time of making the J direction view of the apparatus of FIG. 1 into the front. It is a J direction view front view of the apparatus of FIG. It is an AA arrow line figure of FIG. FIG. 4 is a right side view of the apparatus of FIG. 3. It is explanatory drawing which shows the state which descends this apparatus to a sand mold. It is a top view in the middle of making this device of an embodiment fit into a sand mold. It is a perspective view in the middle of fitting this device of an embodiment on a sand mold. It is a section action explanatory view in the middle of fitting this device of an embodiment on a sand mold. It is a front view in the middle of making this device of an embodiment fit into a sand mold. It is a section action explanatory view in the middle of fitting this device of an embodiment on a sand mold. It is a cross-sectional explanatory drawing of the fitting completion to the sand mold of this apparatus of an embodiment. It is a front view of the state of FIG. It is the plane explanatory drawing which combined the conventional example of the pouring conveyance line by a trolley, and a part of application of this embodiment. It is explanatory drawing which shows the example of the jacket mounting which has a taper inner wall in the conventional taper sand type | mold. It is a plane explanatory view showing an example of the conventional pouring conveyance line. It is explanatory drawing which shows the pouring work state by the conventional method.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Pouring frame apparatus 20 Main body support frame 24A, 24B, 24C, 24D Base body 30 Through-hole 60 Movable press frame 62 Side contact wall 64 Upper surface contact wall 100 Proximity synchronous pushing mechanism 102 Link coupling device 104 Link pin 105 Movable regulation Part 106 Pivot part 110 Pivot part 300 Dolly 500 Sand mold

Claims (6)

This is a sand mold press frame device when pouring into the sand mold casting cavity,
A main body support frame integrally assembled with a plurality of base bodies arranged to face each other on the opposite sides of the sand mold;
A plurality of movable presser frames arranged directly opposite to the opposing side surfaces of the sand mold, which are arranged inside the main body support frame and arranged at a substantially central position inside the main frame;
A proximity synchronized push mechanism that links the main body support frame and the movable presser frame and moves the movable presser frame close to the opposite side of the sand mold in synchronization with the proximity movement of the main body support frame to the sand mold;
The movable presser frame has a side contact wall that is in close contact with the opposite side surface of the sand mold in the lateral direction, and is integrally connected to the side contact wall in an L shape so as to be in close contact with the top surface of the sand mold when the side contact wall is in contact with the sand mold side surface. A pouring frame device for pouring, comprising an upper surface adhesion wall that can be pressed from the top.   The proximity synchronous pusher mechanism retracts the movable presser frame from the side of the sand mold when the main frame support frame that supports the movable presser frame is suspended, and pushes the movable presser frame inward when the main body support frame is moved closer to the sand mold. The pouring frame device for pouring according to claim 1, comprising a link connecting device that is displaced so as to be moved.   The link connecting device includes a plurality of link pins, one end of which is pivotally supported on the main body support frame side and the other end of which is pivotally supported on the movable presser frame side, and a movable defining portion which defines a movable range of the link pin. The presser frame device for pouring according to claim 2.   2. The main body support frame is composed of a quadrangular frame disposed so as to surround the periphery of the sand mold, and four movable presser frames are provided corresponding to the four bases. The presser frame device for pouring as described in any one of thru | or 3.   The pouring frame device for pouring according to claim 4, wherein the movable defining portion comprises a through hole through which a link pin penetrating in a lateral direction passes through each base of the main body support frame. The pouring frame device for pouring according to any one of claims 1 to 5, wherein the upper surface close-contact wall protrudes in an L shape from the side surface close-contact wall so as not to hang over the sand-type pouring gate.

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