JPS63177B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. Object of the Invention (1) Field of Industrial Application The present invention relates to a flat part feeding device for feeding flat parts made of magnetic metal in a vertical position.

(2) Conventional technology Conventionally, such a feeding device holds flat parts in a magazine rack in a vertical position, pushes them out one by one from the magazine rack, holds them in the vertical position, and then transfers them to the next one. It is supplied to the equipment. However, since the flat parts are held in the magazine rack in a vertical position, the amount that can be accommodated in the magazine rack is reduced, making it troublesome to replenish the flat parts. Furthermore, the mechanism for temporarily holding the flat part after it has been pushed out of the magazine rack is complicated.

(3) Problems to be Solved by the Invention The present invention has been made in view of the above circumstances, and aims to minimize the trouble of replenishing supplies by storing and supplying a large number of flat parts in a magazine rack. It is an object of the present invention to provide a feeding device for flat parts which does not require a complicated mechanism for holding the flat parts during feeding.

B. Structure of the Invention (1) Means for Solving Problems The device of the present invention includes a magazine holding mechanism that holds a magazine rack in which a plurality of flat parts made of magnetic metal are stacked in a horizontal position; an extrusion plate for extruding the lowermost flat parts one by one; a pair of guide blocks are arranged facing each other in front of the magazine holding mechanism; a magnet is embedded in the vertical guide surface of one of the guide blocks; The other guide block is provided with a recess that faces the guide surface and allows the flat part to rotate 90 degrees,
A 90-degree turning mechanism is provided with a slit and a cutting opening between the upper and lower parts of both guide blocks; an elevating and lowering drive is provided to insert and remove the flat part from the slit into the 90-degree turning mechanism and cut out the flat part from the cutting opening. a cutout plate;

(2) Effect According to the above configuration, the flat part is fed from the magazine holding mechanism into the 90 degree rotation mechanism in a horizontal position,
In the 90 degree rotation mechanism, the flat parts are rotated 90 degrees by magnets due to the difference in their surface areas and are placed in a vertical position.
It is cut out from the cutting port while maintaining the vertical position.

(3) Embodiment Hereinafter, an embodiment in which the present invention is applied to a core molding machine will be explained with reference to the drawings.
In the figure, a core molding machine 1 is used to mold, for example, a water jacket core for a four-cylinder cylinder block. A rail 3 extending from 1 to 3 is laid down, and a lower mold 5 and an upper mold 6 for molding the core in cooperation with the lower mold 5 are mounted on a trolley 4 that can move on the rail 3. Ru. The upper die 6 is moved up and down by a cylinder 7 provided at the upper part of the frame 2. Further, a grip plate 8 for gripping the upper mold 6 and a mold release plate 9 for releasing the mold are respectively provided. Such a configuration is conventionally known, and on the side of the frame 2, there is provided a supply device 10 for supplying a flat cylindrical part as a flat part made of magnetic metal, and a supply device 10 for supplying a flat cylindrical part made of magnetic metal. Setting device 11 for setting the keren on the upper mold 6
and will be provided.

In FIGS. 2, 3 and 4, the supply device 10 includes a horizontal substrate 1 fixed to a frame 2.
2, and the flat cylindrical part 23 is placed on 3.
Three 90-degree rotation mechanisms 13a, 13b, 13c for simultaneously supplying the pieces one by one, and a flat cylindrical keren 23
Three magazine racks 14 for holding stacks of
a, 14b, 14c and each magazine rack 14
Three extrusion plates 15a, 15b for extruding flat cylindrical parts one by one from a, 14b, 14c,
15c, and each 90 degree rotation mechanism 13a, 13b, 13
Three cutting plates 16a, 16b, 16 for cutting out the flat cylindrical part 23 downward from inside c.
c, a single extrusion cylinder 17 for reciprocating each extrusion plate 15a, 15b, 15c, and a single cutting cylinder 18 for driving each cutout plate 16a, 16b, 16c up and down.

Each of the 90 degree rotation mechanisms 13a, 13b, and 13c is disposed at the edge of the substrate 12 on the upper mold 6 and lower mold 5 sides with a space therebetween, and is connected to a pair of guide blocks 1.
9 and 20 are arranged facing each other. One guide block 19 is connected to the other guide block 2.
The guide block 20 has a vertical guide surface 21 on the zero side, and the other guide block 20 is provided with a concave surface 22 facing the guide surface 21. The recess 22 is provided with a depth sufficient to allow the flat cylindrical support 23 in the horizontal position to rotate by 90 degrees to assume the vertical position. Further, on the guide surface 21, a flat cylindrical groove 23 is provided.
A permanent magnet 24 is buried in order to rotate it 90 degrees. Between the upper parts of both guide blocks 19 and 20,
A slit 25 is provided through which each cutout plate 16a, 16b, 16c can be inserted, and both guide blocks 1
The lower portions of 9 and 20 extend downward through the substrate 12, and are arranged in a flat cylindrical shape 23 facing each other.
A cutting opening 26 is formed.

Above the 90 degree rotation mechanism 13b, there are columns 27, 2.
A bracket 29 is disposed supported on the base plate 12 at 8, and a cutting cylinder 18 having a vertical axis is fixed and supported on this bracket 29. The piston rod 3 of this cutting cylinder 18
0 is vertically movable through the bracket 18, and a connecting plate 31 having bent ends is fixed to its lower end. Each cutout plate 16a, 16b, 16c is
A connecting rod 32 passing through both ends of the connecting plate 31 is fixed to both ends and the center thereof, and each cutting plate 1 is fixed by the telescopic operation of the cutting cylinder 18.
6a, 16b, 16c are each 90 degree rotation mechanism 13a,
It is inserted into and removed from the slits 25 of 13b and 13c. In addition, a rotation prevention rod 33 is fixed to the connecting plate 31 and extends upwardly through the bracket 29 in a movable manner.
16b, 16c are prevented from rotating about the axis of the piston rod 30. Therefore, in response to the extension operation of the cutting cylinder 18, each cutting plate 16a, 16b, 16c is always aligned with the slit 2.
5 into each of the 90 degree rotation mechanisms 13a, 13b, and 13c.

With reference to FIGS. 5 and 6, each of the above
Magazine holding mechanisms 34a, 34b, and 34c are respectively provided on the substrate 12 on the opposite side of the upper mold 6 and lower mold 5 with respect to the 90 degree rotation mechanisms 13a, 13b, and 13c.
Magazine racks 14a and 14 are attached to 34b and 34c.
b and 14c are each held detachably.

Each magazine holding mechanism 34a, 34b, 34c
The first block 35 has a vertical flat plate shape, and the second block 3 is screwed to the bottom of the first block 35.
6, a third block 37 that is magnetically attracted to the second block 36, and a holder 38 having a substantially L-shaped cross section that is inserted and removed between the first and third blocks 35 and 37. The first block 35 is the substrate 12
The second block 36 is fixed on the first block 36.
A fitting groove 39 opened upward between the block 35
is formed and fixed to the first block 35. Further, a permanent magnet 40 is embedded in the third block 37, and the third block 37 is moved to the second block by its magnetic force.
When it adsorbs to the block 36, the second block 3
A guide groove 41 that is open upward is formed between the third block 6 and the third block 37. Further, the inner surface of the first block 35 and the inner surface of the fourth block 37 are provided with stepped portions 42 and 43 when viewed from above.

Each magazine holding mechanism 34a, 34 like this
b, 34c, the holder 38 is inserted between the first and third blocks 35, 37 with its lower end supported by the steps 42, 43. Each magazine rack 14a, 14b, 14c is formed into a rectangular tube shape with an open lower end, and is inserted into the holder 38 with the lower end fitted into the fitting groove 39 and supported by the stepped portion 43. be done. With each magazine rack 14a, 14b, 14c inserted and held in the magazine holding mechanism 34a, 34b, 34c in this way, the flat cylindrical bracket 2 of the lowest layer is inserted.
3 is the second block 36 and extrusion rods 47a, 47
b, 47c. Furthermore, when inserting and removing the magazine racks 14a, 14b, 14c and the holder 38, the third block 37 is attracted to the second block 36 by the magnetic force of the permanent magnet 40.
It is very easy to remove the third block 37 from the second block 36, thus removing the magazine racks 14a, 14b, 14c and the holder 38.
Insertion and removal work becomes extremely easy.

A bracket 44 is fixed on the substrate 12 at the center of the edge farthest from the upper die 6 and the lower die 5, and an extrusion cylinder 17 having a horizontal axis is fixed and supported on this bracket 44. A connecting plate 46 is fixed to the piston rod 45 of the extrusion cylinder 17 that movably passes through the bracket 44, and the guide groove 4 of each magazine holding mechanism 34a, 34b, 34c is attached to the connecting plate 46.
Push-out rods 47a, 47b, 47c that slide inside the push-out rods 47a, 47c are fixed respectively.
b, 47c, extrusion plates 15a, 15b,
15c are fixed respectively. Moreover, the extrusion plate 15
a, 15b, 15c are extrusion rods 47a, 47b, 4
7c to the connecting plate 46, and each magazine holding mechanism 34a, 34b, 34
The position where the lowest flat cylindrical part 23 in c is pushed out into the 90 degree rotation mechanisms 13a, 13b, 13c, and each magazine holding mechanism 34 as shown in FIG.
It reciprocates between a, 34b, and 34c and a position where it escapes to the extrusion cylinder 17 side.

Referring to FIGS. 7 and 8 together, the setting device 11 is supported by the frame 2 below the supply device 10, and each of the 90 degree rotation mechanisms 13
Three holder holders 48a, 48b, 48c that receive flat cylindrical holders 23 from a, 13b, 13c
, a horizontal movement cylinder 49 for reciprocating the holder 48a, 48b, 48c in the horizontal direction, and each holder 48a, 48b, 48c.
and a lifting cylinder 50 for driving the cylinder up and down.

A bracket 51 is fixed to the frame 2, and a horizontally moving cylinder 49 is fixed and supported on this bracket 51. The horizontally moving cylinder 49 has a horizontal axis parallel to the extrusion cylinder 17 in the supply means 10 and is fixed to a bracket 51, and a horizontally moving bracket 53 is attached to a piston rod 52 that movably passes through the bracket 51. is fixed. The bracket 51 also has three guide tubes 5 parallel to the piston rod 52.
4 is penetrated and fixed, and their guide tube 54
A guide bar 55 fixed to a horizontal movement bracket 53 is inserted through each of the holes. Therefore,
In response to the expansion and contraction of the horizontal movement cylinder 49, the horizontal movement bracket 53 is reciprocated in the horizontal direction by sliding of the guide bar 55 within the guide cylinder 54, and each guide bar 55 and the guide cylinder 54 move the horizontal movement bracket 53 back and forth in the horizontal direction. Rotation of the piston rod 52 about its axis is prevented.

The horizontal movement bracket 53 includes a bracket 5.
6 is fixed at a right angle, and this bracket 56
A lifting cylinder 50 having a vertical axis is fixed and supported. A piston rod 57 of the lifting cylinder 50 movably passes through the bracket 56 and extends upward, and a lifting bracket 58 is fixed to the upper end of the piston rod 57. Further, three guide bars 59 extending downward are fixed to the lifting bracket 58, and these guide bars 59 are respectively inserted into three guide tubes 60 provided vertically through the bracket 56. Therefore, by telescopically operating the lifting cylinder 50, the lifting bracket 58 moves up and down while sliding the guide bar 59 within the guide tube 60, and each guide bar 59 and guide tube 60 moves the piston rod 57. Rotation about the axis is prevented.

A cleaning support 61 is fixed to the lifting bracket 58, and cleaning support holders 48a, 48b, and 48c are arranged on this cleaning support 61.
A mounting surface 62 is provided at the upper end of each holder 48a, 48b, 48c, and this mounting surface 62
holding frames 63 erected facing each other at both ends of the
64 has holding grooves 65, 6 extending vertically.
6 are provided respectively. Each holding groove 65, 66
are drilled with a width that allows both ends of the flat cylindrical groove 23 in a vertical position to fit therein.

In FIG. 9, each holder 48a, 48
b, 48c are held by a frame 67 provided on the cairn holder 61 with slight vertical movement allowed, and are biased upward by a spring 68.

In FIG. 10, the upper die 6 to which each flat cylindrical shell 23 is attached has a protrusion 69 that corresponds to the hollow part of the water jacket core for a 4-cylinder cylinder block, and a protrusion 69 is provided between each cylinder. Mounting grooves 70a, 70b, and 70c that are open downward are provided in portions of the core corresponding to the narrow portions, respectively. Moreover, a recess 71 is provided in one side wall of each of the mounting grooves 70a, 70b, and 70c, as shown in FIG. A leaf spring 73 is held. This plate spring 73 is inserted into each mounting groove 70a, 70b, 70c from a hole 74 in the center of the pressing plate 72.
When the flat cylindrical part 23 is inserted into the mounting groove 70a, 70b, 70c,
It functions to press and hold the keratin 23 toward the other side wall. However, the spring force of each leaf spring 74 allows the flat cylindrical embossment 23 to escape from the mounting grooves 70a, 70b, and 70c when the upper mold 6 is moved up and down by applying a slight force to the flat cylindrical embossment 23. It is set to the extent that

Again, in FIG. 1, an operation panel 75 is disposed hanging laterally from the upper part of the frame 2.
By operating this operation panel 75, the operation of each operating section is controlled.

Next, to explain the operation of this embodiment, when the trolley 4 moves to a predetermined position and comes to rest,
The upper die 6 with the flat cylindrical embossments 23 attached to the mounting grooves 70a, 70b, and 70c is lowered to the lower die 5, and a core having the flat cylindrical embosses 23 is molded. After that, the upper mold 6 rises and releases the mold, and the lower mold 5 releases the molded core and pushes it up, and then is taken out by the take-out device and transported to the next process, while the take-out device is in operation. , the flat cylindrical part 23 is attached to the upper mold 6.

That is, in the supply device 10, the extrusion cylinder 17 is operated to extend, and each magazine rack 34 is
The lowest layer of the flat cylindrical plates 23 stacked horizontally in a, 34b, and 34c is pushed out into the 90 degree rotation mechanisms 13a, 13b, and 13c by the extrusion plates 15a, 15b, and 15c. . At this time, the flat cylindrical part 23 is pushed into the 90 degree rotation mechanism 13a, 13b, 13c while maintaining a horizontal position, but due to the difference in surface area when the push-out plates 15a, 15b, 15c are pushed back, it is attracted to the permanent magnet 24. 90
It is held on the guide surface 21 in a state in which it has been rotated a degree and assumed a vertical posture.

Next, the cutting cylinder 18 is extended and the cutting plates 16a, 16b, 16c are removed from the slit 25.
Each flat cylindrical part 23 is pushed into the 90 degree rotation mechanism 13a, 13b, 13c along each guide surface 21.
Press down. As a result, each flat cylindrical part 23
falls downward from the cutting port 26, but at this time, each of the cutting holders 48a, 4 in the setting device 11
8b and 48c are the corresponding 90 degree rotation mechanisms 13a and 1
3b, 13c are located below the cutting openings 26, and the flat cylindrical keren 23 that has fallen is held in the holding grooves 65, 66 of the keren holders 48a, 48b, 48c in a vertical position. .

In this state, the horizontal movement cylinder 49 is extended and the cleaning holder 61 is horizontally moved to just below the upper mold 6, and each cleaning holder 48a, 48b, 48c is located directly below the mounting groove 70a, 70b, 70c. Next, the elevating cylinder 50 starts to extend, and the cleaning holder 61 and each cleaning holder 4
8a, 48b, 48c rise, and the Keren holder 4
Each flat cylindrical part 23 on 8a, 48b, 48c
are inserted into the mounting grooves 70a, 70b, 70c with both ends protruding outward, and the holder 48
Mounting groove 70 according to the descent of a, 48b, 48c
a, 70b, and 70c, respectively.

The flat cylindrical embossment 23 is held in each mounting groove 70a, 70b, 70c of the upper die 6, and the embossment holder 48a, 48b,
When the lower mold 5 comes to a predetermined position and comes to rest at the stage where the lower mold 48c returns, the lowering of the upper mold 6 is started.
As a result, the upper mold 6 and the lower mold 5 cooperate to mold the core, but at this time, both ends of the flat cylindrical keren 23 are buried in the narrow part of the core, and the upper mold 6 rises. Accordingly, the flat cylindrical part 23 remains inside the core.

The core formed in this way forms a water jacket when casting a four-cylinder cylinder block, and the flat cylindrical groove 23 functions to prevent deformation of the narrow part between each cylinder, and also to prevent the inside of the cylinder block from deforming. The water jacket formed around each cylinder is integrally cast into the cylinder to form a water passage that connects the cylinders to each other.

According to this embodiment, the flat cylindrical part 23 is
After the molding of the core is completed, it is set in the upper die 6 before the water jacket core is taken out, so there is no need to set extra time for setting the flat cylindrical keren 23, and the core molding process is It is possible to shorten the time required.

In the above embodiment, the flat cylindrical part 23 is used as the flat part, but the present invention can also be used as an apparatus for supplying a flat plate by rotating it by 90 degrees from a horizontal position to a vertical position. can be implemented.

C. Effects of the Invention As described above, the device of the present invention has a magazine holding mechanism that holds a magazine rack in which a plurality of flat parts made of magnetic metal are stacked in a horizontal position; A push-out plate that pushes out the magazine racks one by one; a pair of guide blocks are arranged facing each other in front of the magazine rack holding mechanism; a magnet is embedded in the vertical guide surface of one guide block; a 90 degree turning mechanism, in which a recess for allowing the flat part to turn 90 degrees is provided facing the guide surface, and a slit and a cutout are provided in the upper and lower parts of both guide blocks; from 90
It includes a cutting plate that is inserted into and removed from the rotation mechanism and is driven up and down to cut out the flat part from the cutting opening, so that the flat part in the horizontal position can be turned 90 degrees and placed in the vertical position. can be supplied. Therefore, a large number of flat parts can be stacked and stored in the magazine rack, and the trouble of replenishment can be minimized. Moreover, the magnet is used to hold the flat part in a vertical position, and the flat part can be held with a simple structure.

[Brief explanation of the drawing]

The drawings show an embodiment in which the present invention is applied to a core molding machine, and FIG. 1 is a partially cutaway front view of the core molding machine, and FIG. 2 is an enlarged perspective view of the supply device. Fig. 3 is an enlarged plan view of the supply device, Fig. 4 is a sectional view along the line shown in Fig. 3, and Fig. 5 is a - line sectional view of Fig. 3.
6 is a cross-sectional view taken along the line in FIG. 3, FIG. 7 is an enlarged perspective view of the setting device, FIG. 8 is an enlarged side view of the setting device, and FIG. 9 is a cross-sectional view taken along the line in FIG. FIG. 10 is a perspective view showing how the flat cylindrical part is set on the upper mold, and FIG. 11 is an enlarged longitudinal sectional view showing the structure of the mounting groove. 10... Supply device, 13a, 13b, 13c...90
Degree rotation mechanism, 14a, 14b, 14c...Magazine rack, 15a, 15b, 15c...Extrusion plate, 1
9, 20... Guide block, 21... Guide surface, 22
... recessed part, 23 ... flat cylindrical groove as a flat part, 24 ... permanent magnet, 25 ... slit, 26 ... cutting opening.

Claims (1)

[Claims] 1. A magazine holding mechanism that holds a magazine rack in which a plurality of flat parts made of magnetic metal are stacked in a horizontal position; an extrusion plate that pushes out the lowest flat parts in the magazine rack one by one; the magazine holding mechanism A pair of guide blocks are arranged facing each other in front of the flat part, a magnet is embedded in the vertical guide surface of one guide block, and a recess is provided in the other guide block to allow the flat part to rotate 90 degrees. a 90-degree turning mechanism provided facing the guide surface and having a slit and a cutout between the upper and lower portions of both guide blocks; a flat part that is inserted into and removed from the 90-degree turning mechanism through the slit; A cutting plate that is driven up and down to cut out a flat part through a cutting opening.