JPH0332424B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention uses a vertical frameless molding machine to mold and pour a high-temperature box-shaped profile casting product before it is completely cooled.
Unstable in the left-right and height directions. After taking it out from the mold with a claw and positioning it accurately, it is moved intermittently with a gripping claw and lifted from the cast product while ensuring positional accuracy. The present invention relates to a method and apparatus for folding a box-shaped irregularly cast product by vertical frameless molding, in which unnecessary items such as sprues and runners are successively broken off and transferred to a transfer truck to a transportation hanger.

Conventionally, when manufacturing box-shaped profile castings (hereinafter referred to as products) such as cylinder blocks and gear housings, vertical frameless molding is used to create molds, pour metal into them, and then continuously extrude them before completely cooling them. In order to accurately take out the product from inside the mold, the position of the product inside the mold is uncertain due to the performance of the molding machine and cannot be confirmed with high precision. These were cast using a split mold method. However, although some weir folding devices have recently been developed that continuously take out the product from the mold and break off unnecessary materials such as sprues and runners, this method is not satisfactory and still requires a lot of effort from workers. The process involves taking out the product from the poured mold and breaking the sprue etc. with a hammer, which is extremely inefficient, and in addition, the harsh working conditions of the workers are high and humid. Therefore, there is a strong demand for the development of a series of weir folding devices to solve these problems.

In view of the above-mentioned circumstances, the present invention was created with the aim of improving work efficiency and working environment, and ultimately contributing to improving production efficiency. After continuous molding using a vertical frameless molding machine, the product was poured into the mold and the position was uncertain at high temperatures before it was completely cooled. After accurately detecting and gripping it and positioning it on the positioning table, it is moved intermittently by the gripping claws and mechanically breaks off unnecessary items such as sprues and runners at required locations. It is designed to be transferred to a transportation hanger for transportation to the next process and then to a loading cart, and there is no room for workers to intervene during this series of weir folding processes, and there is no need to worry about the high temperature left after pouring and hardening. It is extremely useful for processing products in a fully automatic and continuous manner.

To explain one embodiment of the present invention, molds 1, 1'...
The position of the crude product 2 is detected by a thermal sensor or a drill, facing the mold conveying end surface of the conveyor 3, which conveys the raw products 2, 2', etc., which have been poured into the mold and have not yet been completely cooled, at a constant intermittent speed. The functional take-out claws 4, 4' are pivotally connected to a movable rotating rod 6 that hangs down from the machine base 5 and can move and rotate freely to form a crude product take-out mechanism. Formed on both sides of a rotary table 8 attached to a rotating shaft 7 arranged vertically in series, so as to match the shape of both side end surfaces of a runner 9 that continues to the lower end of the rough product 2, A rough product placement plate 1 that is configured to be reversed laterally around an inversion shaft 11 by the operation of a reversal cylinder 10 so as to discharge the foundry sand that falls.
2 and further fixes one side end surface of the crude product 2 by the operation of the fixing cylinder 13.
4 to fix the crude product 2 from the side,
Further, a fixing plate 15 for receiving one shaft end surface of the rough product 2 is erected, and a pressing rod 17 for pressing and fixing the other shaft end surface by a pressing cylinder 16 is arranged to form a positioning mechanism for the rough product, Next, a movable trolley 20 movable by a moving cylinder 19 is disposed at the upper end of the machine frame 18 arranged in series with this positioning mechanism section, and this movable trolley 20 has the following features:
At the lower end, gripping claws 22, 23, 22', 2 are connected to open and close by clamping pressure cylinders 21, 21', 21''.
3′, 22″, 23″ are installed, and the first gripping part 24,
A second gripping part 25 and a third gripping part 26 are formed so that the whole can be raised and lowered by lifting cylinders 27, 27', 27'', and gripping claws of the first and second gripping parts 24, 25 are formed. 22, 23, 22',
Between 23' and 23', there is a ridge 2 that bulges out on the upper end surface of the crude product 2.
Lifting cutters 30, 30' are interposed to break off the parts 8, 28' by the operation of the cylinder 29, and processing gaps 31, 3 are further formed in the lower part of the machine frame 18.
2, 33, and 34, receiving rods 35 and 3 are formed below the second processing space 32 to match the shape of both ends of the runner 9 that is continuous with the lower end of the raw product 2.
A cylinder 39 is installed at the side end of the rotary shaft 36 so that a hammer 37, which is pivoted on a rotary shaft 36 installed vertically below it, hits the bottom of the hot water top 38 and breaks it. An interlocking rod 41 connected to the operating rod 40 of
The other end is pivoted, and in order to prevent the rough products 2 placed on the receiving rods 35, 35' from moving in the axial direction, one of them is moved forward by the operation of a position adjustment cylinder 42. Alternatively, a retracting position adjustment board 43 is attached, and an extrusion block 44 that presses and fixes the shaft end surface to which the sprue 38 of the raw product 2 is connected is attached to the operating rod of the extrusion cylinder 45, and a third A mounting table 47 corresponding to the shape of the lower surface of the raw product 2 is superimposed on a substrate 46 horizontally suspended in the lower central part of the processing chamber 33, and the raw product 2 is stably placed on this mounting table 47. Upper rotating shafts 49, 49' that are rotated by the operation of pressing cylinders 48, 48' are installed horizontally above the left and right sides of this mounting table 47, and the center of the rotating shafts 49, 49' A plurality of press rods 50 and 51 are pivoted to press and fix the upper end of the rough product 2, and lower parts on the left and right sides of the mounting table 47 are rotatable by the operation of breakage cylinders 52 and 52'. The rotation shafts 53, 53' are installed horizontally, and the rotation shafts 5
A plurality of cutter arms 54, 55 for cutting off the runners 9 continuous to the lower ends of both sides of the rough product 2 are pivoted to the center portions of 3, 53' to form a series of weir folding mechanism parts for the rough product, Next, a transfer cart 58 that moves on rails 57 by the operation of a cylinder 56 for moving the transfer table is disposed below the fourth processing room 34, and on the transfer cart 58 there is a A transfer table 61 is installed which can place the product 59 from which waste materials such as the sprue 38 and the runner 9 have been removed by the mechanical part, and which is raised and lowered by the operation of the lifting cylinder 60. A product transfer mechanism is provided to transfer the product 59 to a transport hanger (not shown), in which 62 is a take-out machine, 63 is a mounting base, and 64 and 64' are lifting rods. be.

The present invention has the configuration as described above, and the series of weir folding processes resulting from this will be explained as follows.
A movable rotating rod 6 hangs from the machine base 5 toward the tip of the conveyor 3 where the molds 1, 1', which have been molded and poured by a vertical frameless molding machine and have not yet been completely cooled, are conveyed at an intermittent speed. The take-out claws 4, 4' pivotally attached to the molds 1, 1' are vibrated and moved forward while collapsing the molds 1, 1', and when the position of the crude product 2 is detected by a heat sensor or a drill, it is clamped by the take-out claws 4, 4'. After pulling it out from the mold 1, 1', it turns and retreats, and when transferring it to the positioning mechanism of one of the rough products on the rotary table 8, the take-out claws 4, 4' pull the rough product 2 into the rough product. When placed on the placing plate 12, it is opened and returned to its original position in order to take out the following crude product 2'. When the crude product 2 placed on the crude product placement plate 12 is fixed by the fixing rod 14 pressing the side end surface of the crude product 2 by the operation of the fixing cylinder 13, the rotary table 8 is rotated 180 degrees. When the fixing rod 14 is released by rotating into the processing chamber 31 which is partitioned in the lower part of the machine frame 18, the press cylinder 16 is activated to push the raw product 2 between the press rod 17 and the fixing plate. 15 for precise positioning. After that,
When the press rod 17 returns and is released, the gripping portions 24, 25 of the movable cart 20 waiting above it are
26 has descended, and when the grasping claws 22 and 23 of the first grasping part 24 that are opened grasp the raw product 2 from both sides, the respective grasping parts 24, 25, and 26 move up and down the lifting cylinders 27, 27', 27. '', and then each gripping part 24, 2 is raised by the moving cylinder 19.
5 and 26 are moved by one frame during processing 32, 33, and 34. Thereafter, as shown in FIG. 6, the cylinder 29 operates to break off the frills 28 bulging on the upper end surface of the raw product 2 with the frit cutter 30, and the gripping parts 24, 25, 26 descend again. Crude product 2
Receiving rods 35, 3 installed horizontally below the second processing space 32
It will be transferred 5' up. Thereafter, the gripping claws 22 and 23 are opened and raised to raise the subsequent crude product 2'.
It returns to its original position in order to receive the other position on the rotary table 8. During this time, the receiving rod 35 of the second processing period 32,
As shown in FIG. 8, the rough product 2 transferred onto 35'
After the extrusion cylinder 45 and the extrusion cylinder 45 operate to press and fix the position adjustment board 43 and extrusion block 44 to each other, the hammer 37 rotates and strikes the bottom of the sprue 38 to break it. . after that,
Each of the gripping parts 24, 25, and 26 descends, and the second gripping part 25 grips the rough product 2 from which the sprue 38 has been broken off, and the first gripping part 24 grabs the next rough product 2 positioned on the rotary table. After grasping the cutter 30, they all rise and the moving cart 20 moves by one frame to the adjacent processing spaces 34 and 35, and the cutter 30 is lifted between the gripping claws 22' and 23' of the second gripping part 25. ' is activated to break off the remaining fried 28' in two steps, and the fried 28, 28' are cut off at once between either of the processes by the fried cutters 30, 3.
A similar effect can be obtained by dividing at 0'. When the second gripping portion 25 that grips the raw product 2 with the sprue 38 broken off in this manner is lowered onto the mounting table 47 suspended horizontally at the center below the third processing chamber 33, it is disposed above the left and right sides of the mounting table 47. The pressing rods 50 and 51 press the upper part of the crude product 2 to fix it. After that, when the second gripping part 25 is released and returns to its original position together with the other gripping parts 26 and 24, the third gripping part 25
During the processing period 33, as shown in FIG. 9, the cutter arms 54 and 55 rotate to break off the hot paths 9 that are continuous to the lower ends of the left and right sides of the raw product 2, and the breaking of the hot paths 9 is completed. Then, the third one was waiting above it.
The gripping portion 26 is opened and lowered to grip the gripping claws 22'', 2.
When the product 59 is grasped with the 3", the press rods 50 and 51 are opened and the product 59 is raised. At the same time, the movable cart 2
0 moves by one frame and the product 5 is placed on the transfer table 61 of the transfer cart 58 waiting below the fourth processing space 34.
9 is loaded. The transfer cart 58 loaded with a predetermined number of products 59 in this manner moves to be transferred to a transportation hanger (not shown), and this series of weir folding processes is completed fully automatically without any operator intervention. It is something to do.

As described above, the present invention enables the folding process of box-shaped irregularly cast products by the vertical frameless molding method, which has been considered impossible in the past, to be taken out of the mold at a high temperature without any manual work. After positioning with high precision, the caster is moved intermittently to ensure positional accuracy and to accurately and sequentially break off unnecessary items such as sprues and runners from the casting, which dramatically improves production efficiency. It has extremely excellent effects.

[Brief explanation of the drawing]

Fig. 1 is an overall schematic diagram of the present invention, Fig. 2 is a front view showing a rough product taken out from the mold and transferred onto a rotary table, and Fig. 3 is an overall front view showing the weir folding mechanism for the rough product. , FIG. 4 is a partially enlarged side view of the rotary table, FIG. 5 is a front view taken along line A-A in FIG. A partially enlarged front view showing the breakage of the sprue,
FIG. 8 is a side view of the same as above, FIG. 9 is a partially enlarged front view showing the breakage of the runner, and FIG. 10 is a right side view of the same. In the figure, 1, 1'...Mold, 2, 2'...Rough product,
3...Conveyor, 4,4'...Take-out claw, 5
... Machine base, 6 ... Moving turning rod, 7 ... Rotating axis, 8
... Rotating table, 9 ... Runway, 10 ... Reversing cylinder, 12 ... Raw product placement plate, 13 ... Fixing cylinder, 14 ... Fixing rod, 15 ... Fixing plate, 16 ... Pressing Cylinder, 17...pressing rod,
20...Moving trolley, 21, 21', 21''...Pinch pressure cylinder, 22, 23, 22', 23', 22'',
23″...Gripping claw, 24...First gripping part, 25...
...Second gripping part, 26...Third gripping part, 27,2
7', 27''... Lifting cylinder, 28, 28'...
...Fried, 30,31...Fried cutlet, 31,3
2, 33, 34... Between treatments, 35, 35'... Receiving rod, 37... Hammer, 38... Sprue, 41...
Interlocking rod, 43...Position adjustment board, 44...Extrusion block, 47...Placement stand, 50, 51...Press rod, 54, 55...Cutter arm, 58...Transfer trolley, 59...Product, 61 ...transfer table.

Claims (1)

[Scope of Claims] 1. A high-temperature box-shaped profile casting product that has been molded and poured by a vertical frameless molding machine and has not yet been completely cooled is unstable in the front-rear, left-right, and height directions. The mechanism for taking out the crude products to be taken out by the take-out claw is arranged so as to face the conveyor so that it can be reversed, and is further mounted on both sides of a rotary table that is attached to a rotating shaft that stands in series with the taking-out mechanism. , a rough product mounting plate that can be turned over laterally is installed, a fixing rod for fixing the side end surface of the rough product, a fixing plate for fixing the shaft end surface, and a pressing rod are arranged, and the rough product is placed on the side. A positioning mechanism section is formed, and then a movable carriage is disposed at the upper end of the machine frame arranged in series with the positioning mechanism section, and first to third gripping sections are formed at the lower end thereof. The whole of these can be raised and lowered, and furthermore, a lifting cutter for breaking off the lifting is interposed between the gripping claws of a desired gripping part of the gripping parts,
Further, a receiving rod is installed horizontally below the second processing space among the first to fourth processing spaces formed in the lower part of the machine frame, and a position adjustment board is provided for fixing the position of the raw product before and after the receiving pipe. The extruded block is arranged opposite to the extruded block,
Furthermore, a rotatable hammer is attached to the lower part of the receiving rod to break off the sprue, and a loading table is installed horizontally in the center of the lower part of the third processing space, and the rough products are placed above both sides of the loading table. A press rod that presses and fixes the upper end is arranged so that the rough product is fixed between the mounting table and the press rod, and rotatable cutter arms are attached below both sides of the mounting table to break off the runner. A product transfer mechanism in which a transfer cart having a transfer platform that forms a weir folding mechanism section for crude products and is movable up and down during the fourth processing of the machine frame is movable between a transportation hanger section. A method for weir folding a box-shaped irregularly cast product by vertical frameless molding, characterized in that a series of parts are provided. 2. A take-out claw with a position detection function inside the mold is installed opposite to the mold conveying end surface of the conveyor that transports the mold, which has been molded and poured by a vertical frameless molding machine and has not yet been completely cooled, at a constant intermittent speed. A rough product take-out mechanism that can be moved and rotated freely is provided, and a rough product retrieval mechanism that can be turned laterally is installed on both sides of a rotary table that is attached to a rotating shaft that is arranged in series with the mechanism and stands upright. In addition to installing a product placement plate, a fixing rod is installed to fix one side end surface of the rough product so that the rough product is fixed from the side, and a fixing plate is also erected to receive the shaft end surface of the rough product. At the same time, a pressing rod for pressing and fixing the other shaft end surface is arranged to form a positioning mechanism for the crude product, and then a movable movable cart is arranged at the upper end of the machine frame arranged in series with the mechanism. At the same time, first to third gripping parts are formed at the lower end so that the whole can be raised and lowered, and a bulge is formed at the upper end of the raw product between the gripping claws of a desired gripping part among these gripping parts. A lift cutter is interposed to break off the fries, and a receiving rod is horizontally installed below the second process between the first to fourth processes forming sections at the lower part of the machine frame. At the same time, a position adjustment board and an extrusion block for fixing the position of the raw product are placed opposite each other in front and behind the receiving rod, and a rotatable hammer is attached below the receiving rod, and this is used to press the bottom of the sprue. The sprue is broken off by striking, and a mounting table is placed horizontally in the center of the lower part of the third processing space, and rotatable pressing rods are arranged above both sides of the table to press and fix the upper end of the raw product. The coarse product is fixed by a mounting table and a pressing rod, and rotatable cutter arms are attached below both sides of the mounting table to cut the runners continuous to the lower ends of both sides of the coarse product. A product phase mechanism part that forms a product weir folding mechanism part, and then allows a transfer cart having a transfer platform that can be raised and lowered freely during the fourth processing of the machine frame to be movable between a transport hanger part. A weir folding device for a box-shaped irregularly cast product by vertical frameless molding, characterized in that it is provided with a series of and.