JPH0364221B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an in-mold unnecessary material removal device for removing unnecessary materials that obstruct the weir folding from the mold during weir folding such as sprue folding and lift folding in casting work. It is something.

During casting work, the sprue and ridge are removed from the cast product formed in the mold, but if there is a space around the sprue or ridge, the method is to remove the sprue or ridge from side to side. It is conceivable to bend it and break it off from the dam at the base.

However, if the space around the sprue and the lift is concave, unnecessary materials such as burnt sand and jiyami accumulate in this space during the casting process, making it difficult to perform the sprue fold and the lift fold. become a state.

The present invention was made in view of these points,
The purpose is to remove unnecessary materials that obstruct weir folding such as sprue folding and lift folding from the concave part of the mold, and it is used for the conveyance path of the mold conveyance plate that fixes the mold. , an elevating body that is raised and lowered by an elevating drive mechanism is provided, an inverting body that is inverted by a reversing drive mechanism is provided on the elevating body, a plate holding mechanism that holds a mold conveying plate, and a mold. a product holding mechanism for holding the cast product inside the mold; The configuration is as follows.

Next, before explaining the present invention, a general outline of the casting line will be explained based on FIG.

Along the casting line 1, which is arranged in a rectangular shape when viewed from above, there are a core housing section 2, a pouring section 3, and a main device section 4 for removing unnecessary materials in the casting that may obstruct weir folding. , sprue folding section 5, lifting folding section 6, cutting die section 7
and mold cooling or heating sections 8 are arranged in sequence.
Mold conveying plates 11 are arranged throughout the casting line 1, and two metal molds 12 are fixed to each mold conveying plate 11 with screws.
is formed with a length to width ratio of 2:1.

Next, one embodiment of the present invention will be described based on the drawings.

As shown in FIG. 3, a part of the conveyance path 15 of the mold conveyance plate 11 is disposed between the bases 14 on both sides fixedly installed on the floor surface. This conveyance path 15 is
It is formed by fixed beams 16 on both sides and two integrated movable beams 17, each beam 16,1
In 7, linear members having lengths approximately corresponding to the linear sides 1a, 1b, 1c, and 1d of the rectangular casting line 1 are arranged in parallel.

Then, by raising the two movable beams 17 in a horizontal position by raising a plurality of sets of support rollers 18, the movable beams 17 lift the mold conveying plate 11 from above the fixed beam 16, and then By horizontally feeding the movable beam 17 forward on the supporting roller 18 by a hydraulic cylinder (not shown), the mold conveying plate 11
The movable beam 17 is lowered in a horizontal position by lowering the support roller 18, thereby moving the mold conveying plate 1 on the movable beam 17.
1 is placed on the fixed beam 16, and then the movable beam 17 is returned to its initial position by horizontally feeding the movable beam 17 backward by the hydraulic cylinder (not shown). By such operation of the movable beam 17, each mold conveying plate 1 is
1 and the metal mold 12 integrated therewith are sequentially and intermittently fed. Note that the fixed beam 16 and the movable beam 1
7 has a large number of protruding protrusions 21 at required locations that fit into positioning recesses 20 on the lower surface of the mold conveying plate 11.

Further, as shown in FIGS. 2 and 3, four elevating guide columns 23 are erected from the base 14 on both sides of the conveyance path 15, and support frames 24 are provided at the upper ends of the elevating guide columns 23 on both sides. Furthermore, an elevating body 25 is installed on the elevating guide pillars 23 on both sides so as to be able to rise and fall freely via the guide tube portions 26 on both sides, and an elevating drive mechanism 27 is connected to the elevating body 25.

This elevating drive mechanism 27 includes the support frame 2
The cylinder body of the fluid pressure cylinder 29 is fixed to the center of the piston rod 4, and the tip of the piston rod 30 and
A bracket 31 provided at the center of the upper surface of the elevating body 25
are connected via a shaft 32.

Further, bearings 38 are fixed to the support plates 37 on both sides of the elevating body 25, and a support shaft 39 is fixed between the bearings 38 on both sides.
The reversing body 40 is rotatably supported via the shaft, and a reversing drive mechanism 41 is connected to the support shaft 39 of the reversing body 40 .

As shown in FIG. 6, this reversing drive mechanism 41 has a support member 42 fixed to support plates 37 on both sides of the elevating body 25, and a hydraulic rotary actuator 43 is mounted on the outer surface of the support member 42. The main body is fixed, and the rotating shaft 44 of the actuator 43 and the support shaft 39 of the reversing body 40 are connected by a connecting body 45 such as a chain coupling spring, and the reversing body 40 is rotated in the direction of the arrow shown in FIG. move. Reference numeral 46 denotes a stopper that locks the reversing body 40 when it returns to reverse.

Further, as shown in FIGS. 5 and 6, four plate holding mechanisms 49 each hold both ends of the two mold conveying plates 11 on the reversing plates 48 on both sides of the reversing body 40, and The cast products in the four molds 12 on the four plates 11 are
4 product holding mechanisms 50 each held in 2
and are provided so that they can be held and released at will.

The plate holding mechanism 49 includes the reversing plates 4 on both sides.
Rail-shaped plate receiving portion 5 on the inner surface of the lower end of 8
3 is fixed, and this plate receiving part 53 is a notch formed by cutting out a part of the fixed beam 16 of the conveying path 15 over the length of two plates 11 as shown in FIG. Fixed beam 16 to 52
A bracket 54 is fixed to the outer surface of the lower end of the reversing plate 48 on both sides, and the base end of the holding arm 55 is attached to the base of each bracket 54 with a shaft 56. The tip claw portion 57 of the holding arm 55 projects above the plate receiving portion 53 through the hole 58 at the bottom of the reversing plate 48, and the tip portion of the bracket 54 and the holding arm 55 Upper part and axis 5
9, 60, 61 and links 62, 63, and the tip of the piston rod 65 of the fluid pressure cylinder 64 is rotatably connected to the shaft 60 between the links 62, 63. The main body is rotatably supported via a shaft 67 by a bracket 66 fixed to the upper part of the reversing plate 48. Note that, like the fixed beam 16, the plate receiving portion 53 is provided with a projecting protrusion 68 for positioning that fits into the positioning recess 20 of the mold conveying plate 11.

Further, the product holding mechanism 50 includes reversing plates 4 on both sides.
A shaft 72 is rotatably supported via a pair of bearings 71 on the upper outer surface of the shaft 8, and a locking arm 73 is attached to the shaft 72.
The cylindrical base end portion 74 of the locking arm 73 is projected into the inside of the reversing plate 48 through the hole 75 in the upper part of the reversing plate 48.
A locking part 76 formed at the tip of the shaft 72 faces the lifting surface of the cast product in the mold 12 so as to be able to come into contact with and separate from it, and a link 77 is integrally provided to protrude from one end of the shaft 72. A fluid pressure cylinder 7 is installed at the tip of the
The tips of the piston rods 79 of 8 are rotatably connected via a shaft 80, and the cylinder body of the fluid pressure cylinder 78 is connected to a pair of piston rods 79 fixed to the outer surface of the reversing plate 48 via support shafts 81 on both sides thereof. It is rotatably supported by a bearing 82.

Further, as shown in FIGS. 2 and 3, on the mold 12 of the conveyance path 15, a film is placed on the mold 12 along the conveyance path 15 from a position below the reversing body 40 to a position outside the lifting area of the reversing body 40. The trolley 12 can move forward and backward freely.
Set 0.

This trolley 120 has upper wheels 1 on both sides of one end.
21, and legs 122 on both sides of the other end.
A lower roller 123 is provided through the upper roller 121, and the upper roller 121 is movably mounted on two sets of guide rails 124 arranged in parallel above the conveyance path 15 by means of a fixed frame (not shown). The lower roller wheels 123 are movably placed on guide rails 125 fixed on the base 14 on both sides of the conveyance path 15.

Further, this truck 120 is provided with a forward/backward drive mechanism 127. As shown in FIG. 2, this advancing/retracting drive mechanism 127 has a cylinder mounting frame 128 fixed above the conveyance path 15 by a fixed frame (not shown), and the cylinder of the fluid pressure cylinder 129 is fixed by this mounting frame 128. A bracket 132 fixed to the upper surface of the truck 120 is connected via a shaft 131 to the tip of a piston rod 130 of the hydraulic cylinder 129 that supports the main body.

Further, an unnecessary object receiver 135 having an opening 134 on the same side as one side of the conveyance path 15 is supported on the cart 120 so as to be rotatable around the opening side. 136 is a bracket on the cart 120 side, 137 is a spindle, and 138 is a bracket on the pedestal 135 side. In addition, there is a contact portion 140 on the upper surface of the other side of the truck 120 whose height can be adjusted with a bolt.
In addition, a convex portion 1 is provided on the lower surface of the other side of the waste receiving body 135 that can freely approach and separate from the abutting portion 140.
41 is installed protrudingly. Further, a convex portion 142 is fixed to the other side of the receiving body 135 for tilting.

Further, a tilting drive mechanism 144 raises the opposite side of the waste receiving body 135 around the opening 134 side at a position outside the lifting area of the reversing body 40.
will be established.

As shown in FIG. 7, this tilt drive mechanism 144 moves a pair of guide rails 145 in a circular motion from the side of the protrusion 142 of the waste receiving body 135 to above the side of the opening 134 of the receiving body 135. Two sets of rolling wheels 152 are arranged in an arc shape and supported by fixed frames 146, 147 and support plates 148, 149, and rotatably supported on the pair of guide rails 145 on both sides of the moving body 151. The movable body 151 is fitted so as to be movable, and is integrally provided with a recess 153 that horizontally fits into the convex portion 142 of the receiving body 135, and a fluid pressure cylinder 154 is provided at the bottom of the movable body 151. piston rod 15
5 are rotatably connected by a shaft 156, and the cylinder body of the fluid pressure cylinder 154 is connected to the shaft 15 by a bracket 157 on the base 14.
It is rotatably supported via 8. Furthermore, guide rail 1
45 is formed in an arc shape with the support shaft 137 as the center.

Next, the effect will be explained.

The elevating body 25 is lowered by the fluid pressure cylinder 29, and the plate receiving part 53 of the reversing plate 48 is fitted into the notch part 52 of the fixed beam 16 and positioned continuously.
The two mold conveying plates 11 are positioned on the plate receiving portion 53 by the conveying action of the movable beam 17, and are positioned by the convex portions 68.

Then, the piston rods 65 of the four fluid pressure cylinders 64 are pushed out, and both ends of the two plates 11 are fixed to the plate receivers 53 by the four holding arms 55, and at the same time, the four fluid pressure cylinders 78 are pushed out. The piston rod 79 is pushed out, the four locking arms 73 press and lock the lifting surfaces of each of the cast products in the four molds 12 from above, and the lifting body 25 is raised by the hydraulic cylinder 29. .

Then, the truck 120 is pushed by the hydraulic cylinder 129 to push the waste receiver 135 to a position below the reversing body 40 which has risen together with the elevating body 25, and the hydraulic rotary actuator 4
3, rotate the reversing body 40 by 180°, turn the openings of the two molds 12 and the four molds 12 on the plate 11 from upward to downward, and remove the baked sand and jade that had accumulated in the concave parts of the molds 12. The waste is dropped under its own weight and stored in the waste receiver 135 on the cart 120.

Then, the inverter 40 is reversed and the mold 12 is
When the garbage receiver 135 is returned to the position of the arc-shaped guide rail 145 by returning the trolley 120 upward, the convex portion 142 of the garbage receiver 135 fits into the recess 153 of the movable body 151 from the horizontal direction. Therefore, by pushing out the piston rod 155 of the fluid pressure cylinder 154 and pushing the movable body 151 upward in an arc shape along the guide rail 145, the waste receiving body 135 is rotated about the support shaft 137. The waste receiving body 135 is then tilted to discharge the burnt sand and balls inside the waste receiving body 135 from the opening 134 to a collection conveyor (not shown), and then the waste receiving body 135 is returned horizontally onto the cart 120.

When the receiving body 135 is returned to the position of the guide rail 145, the elevating body 25 is lowered and the plate receiving part 53 of the reversing plate 48 is moved to the fixed beam 16.
to the notch 52 to release both the plate holding by the holding arm 55 and the product holding by the locking arm 73.

As described above, according to the present invention, since the mold and cast product holding means, the lifting means, the reversing means, and the means for receiving the waste material that has fallen from the mold are provided, the mold and the cast product are reversed on the conveyance path, and the mold is removed from the mold. Unnecessary materials such as burnt sand and jade metal can be removed from the inner concave part, and weir folding such as sprue folding and deep folding in the next process can be performed reliably.

[Brief explanation of drawings]

The figures relate to the present invention; FIG. 1 is a plan view of a casting line, FIG. 2 is a front view showing an embodiment of the in-mold waste removal device of the present invention, and FIG. 3 is the same as in FIG. 2. 4 is a plan view of the plate holder, FIG. 5 is a sectional view taken along the - line in FIG. 3, FIG. 6 is a sectional view taken along the - line in FIG. FIG. 3 is a partially broken side view. 11... Mold conveyance plate, 12... Mold, 1
5... Conveyance path, 25... Lifting body, 27... Lifting drive mechanism, 40... Reversing body, 41... Reversing drive mechanism, 49... Plate holding mechanism, 50... Product holding mechanism, 127... Advance/retreat Drive mechanism, 135...Unwanted object receiver.

Claims (1)

[Claims] 1. An elevating body that is raised and lowered by an elevating drive mechanism is provided on the conveyance path of the mold conveying plate, and a reversing body that is reversed by a reversing drive mechanism is provided on this elevating body, and the mold conveying plate is A plate holding mechanism that holds the plate and a product holding mechanism that holds the cast product in the mold are provided, and the advancing/retreating drive mechanism extends from the lower position of the inverter to the outer position of the lifting area of the inverter. A device for removing unnecessary materials in a mold, characterized in that an unnecessary material receiving body is provided that moves forward and backward.