JPH0230782B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for insert supply and product removal in a molding machine such as a die casting machine or an injection molding machine.

Conventionally, in a molding machine, it has been necessary to take the molded product out of the machine from the mold, but depending on the type of molded product, it has also been necessary to load a cylindrical insert into the molded product. For example, it has been necessary to install a cylindrical steel insert in an aluminum cylinder block for an automobile where the piston slides. When producing cylinder blocks etc. by die casting, before casting the molten aluminum into the mold cavity, the inserts as described above are inserted into the desired locations of the open mold, and the inserts are inserted into the mold. It was necessary to pour molten metal after tightening.

However, in a molding machine that requires inserts to be loaded into a mold, conventionally, as shown in Figure 1,
The insert supply device 1 and the product take-out device 2 were separately arranged on both the non-operation side and the operation side of the molding machine 3. In FIG. 1, 4 is a fixed plate of a die-casting machine, 5 is a movable plate, 6 is a fixed mold, 7 is a movable mold, and 8 is a column.

In this conventional example, the insert supply device 1 and the product take-out device 2 were arranged separately, so
Not only were two installation locations required, but these devices also required a large number of parts. In particular, it was necessary to install these devices on both the operation and non-operation sides of the die-casting machine, so it was necessary to leave a large space around the machine, and it was also necessary to clean the molds and apply release agent. This sometimes interfered with other operations such as

The present invention has been made to eliminate these drawbacks and improve workability, and incorporates an insert supply device and a product take-out device into one device.

Next, the present invention will be explained with reference to an embodiment shown in the drawings.

In the plan view of the entire apparatus shown in FIG. 2, 3 is a molding machine that is a die-casting machine, 4 is a fixed platen, and 5 is a molding machine that is a die-casting machine.
1 is a movable platen, 6 is a fixed mold, 7 is a movable mold, 8 is a column, 9 is a mold clamping device, and 10 is an injection device.

11 is an insert fitting stocker, 12 and 13 are first and second insert delivery devices, and 14 is a single frame 15 provided horizontally rotatably on one side of the molding machine 3, and an insert feeding device 16. For example, the product take-out device 17 and the product take-out device 17 are
Insert supply and product ejection devices are installed so that they can move forward and backward while being crossed at 90 degrees, 18 is a water tank for cooling the molded product 81 taken out, and 19 is a burr or biscuit attached to the molded product 81. It is a trimming press that takes etc.

In the insert metal stocker 11, reference numeral 20 denotes a moving platform for vertically placing a plurality of cylindrical inserts 21 in the grooves 22 in a plurality of rows, and both ends of each groove 22 of the moving platform 20 are open. are doing. The moving table 20 is moved by the action of the cylinder 23.
It can be moved horizontally in the horizontal direction in FIG. 2 by the pitch of the grooves 22. 24 is a frame, and an insert extrusion device 26 is attached to a part of the frame 24 via a bracket 25 in such a manner that it can face one end of the groove 22, and inserts 21 are sequentially inserted from the groove 22 one by one. It was made so that it could be extruded from the opposite side of the groove 22. The frame 24 can be moved up and down with respect to the frame 28 by the action of the cylinder 27, so that the movable table 20 can be positioned at a desired height.

The insert delivery device 12 was arranged on the other end side of the groove 22 of the moving table 20 so as to face the insert extrusion device 26 .

The insert delivery device 12 is arranged in the groove 2 of the moving table 20.
2 is received in a vertical position, turned into a horizontal position, and transferred to the next insert delivery device 13.
It has the effect of passing it on to.

As shown in FIGS. 3 to 5, in the insert delivery device 12, the insert receiving portion 29, which has an inner surface matching the outer diameter of the insert 21 to be delivered and has a substantially U-shaped cross section, is replaced with a rotating frame 30. Mount the rotating frame 30 to the bracket 3.
1 by a pin 32 so as to be rotatable. The rotating frame 30 is rotatable between a horizontal state as shown by a solid line in FIG. In this state, the insert 21 in the vertical state is received from the insert metal fitting stocker 11, and the posture of the insert 21 is changed to the horizontal state. 34 is a stopper, 35 is a receiving seat for the insert 21, and the receiving seat 35 is attached to the rotating frame 30 so as to be slidable in the axial direction.
36 is attached to the receiving seat 35, and the rotating frame 30
Two rods penetrate through a part of the rear side, 3
7 is a nut attached to the rear end of the rod 30, 38
is a spring mounting seat, 39 is a compression spring, and the receiving seat 35 is normally in the forward movement limit position as shown in FIG. 4 due to the action of the compression spring 39, nut 37, etc. When pushed backward by the tip or the insert 21, the receiving seat 35 is made to come into contact with the wall indicated by 40 of the rotating frame 30 and stop. Rod 4 parallel to Rod 36
1 is provided by penetrating a part of the rear side of the rotating frame 30, and the tip of the rod 41 is positioned in the hole 42 provided in the center of the receiving seat 35, and the compression spring 43
By operating the rod 41, the rod 41 is normally located at the position shown in FIG. 44 and 45 are position detectors such as photoelectric switches, limit switches, and proximity switches, and when the insert 21 is received in the receiving seat 35 in the normal direction, when the insert 21 is pushed backward, both positions When the detectors 44 and 45 are activated and the insert 21 is received in the receiving seat 35 in the opposite direction, only the lower position detector 44 is activated when the insert 21 is pushed backward. . For this purpose, the rod 3 should be adjusted according to the shape of the insert 21.
The distance between the rear end surface of the rod 41 and the position detector 44 is increased, and the distance between the rear end surface of the rod 41 and the position detector 45 is decreased. 46b is an engaging portion provided at the tip of the inner rod 46, as will be described later.

In FIG. 4, 46 and 47 are an inner rod and an outer rod of the insert delivery device 13, which are constructed in a double rod shape. The inner rod 46 can be inserted into the insert 21 in the insert receiving part 29, and a tapered part 46a is provided in the middle of the inner rod 46. It was made to match part 21a.
The distal end surface of the outer rod 47 can be brought into contact with the rear end surface of the insert 21.

As shown in FIG. 4, when the insert 21 is inserted into the insert receiving part 29 in the normal direction, if the insert 21 is pushed to the left in FIG. When it is pushed by the insert 21 and hits the wall 40 of the rotating frame 30, both position detectors 44 and 45 are activated as described above.
If insert 21 is inserted in the opposite direction,
In FIG. 4, since there is no chamfered portion 21a on the right inner surface of the insert 21, the inner rod 46 is positioned to the right by an amount corresponding to the width of the tapered portion 46a, so the inner rod 46 can be moved forward in this state. When the seat 35 is pushed by the insert 21, it is pressed against the wall 40 of the rotating frame 30.
When this happens, one position detector 44 is activated, but since the rod 41 is not pushed, the other position detector 45 is not activated. Therefore, depending on whether the position detector 45 is activated or not, it can be determined whether the insert 21 is inserted into the insert receiving portion 29 in a normal position or in a reversed orientation. If the insert 21 is inserted in the opposite direction, the insert 21 is taken out from the insert receiving part 29 while being supported by the inner rod 46, and then the outer rod 47 is advanced to push out the insert 21. 48 is a phototube device for confirming that the insert 21 has entered the insert receiving portion 29 without fail.

The insert delivery device 13 receives the insert 21 from the insert delivery device 12 in a horizontal state, and then delivers the insert 21 to the insert supply device 16 in a horizontal state.

As shown in FIGS. 6 and 7, the insert delivery device 13 includes a double cylinder 50 that rotates horizontally about a vertical shaft 50b provided on the frame 49 by the operation of a cylinder 50a. Inside the cylinder body 51 is an outer piston rod 52.
and an inner piston rod 53 are slidably provided, and as shown in FIG.
3a to the rear end of the outer piston 52a and move the inner piston 53a forward, the outer piston 52a will also move forward at the same time, but only the outer piston 52a will move forward than the inner piston 53.
It is possible to move the piston forward regardless of a, and conversely, when retracting, the outer piston 52a is moved back and the inner piston 53a is also moved back at the same time. The aforementioned inner rod 46 for holding the insert is attached to the tip of the inner piston rod 53, and the outer rod 4 for pushing out the insert is attached to the tip of the outer piston rod 52.
7 was installed. 54 and 55 are brackets provided on the insert transfer side, and the positions of the brackets 54 and 55 with respect to the insert transfer position are the insert loading position of the movable mold 7, which will be described later, and the fixed mold 6 and the movable mold 7 when the mold is opened. The position can be adjusted according to the distance between the two.

That is, two brackets 54 and 55 are provided facing each other in a direction perpendicular to the insert delivery direction at the insert delivery position from the insert delivery device 13 to the insert supply device 16, and the inner rod of the insert delivery device 13 is placed at the insert delivery position. 46 part axis and insert feeding device 1
6, and the dimensions between the axes of the insert delivery device 13 and the insert delivery portion 74 and one of the brackets 55 are set using the insert feeding device positioning member in the mold 7. The dimensions between the contact surface and the insert loading position can be matched.

For example, the insert supply device 16 is in a horizontal state.
It consists of a cylinder 56 attached to a rotating frame 15 that rotates 90 degrees, and an insert delivery part 58 attached to the tip of a piston rod 57 of the cylinder 56. The rotation frame 15 is provided so that its height can be adjusted.

As shown in FIGS. 8 and 9, the insert delivery section 5
8 is a frame 59 attached to the tip of a piston rod 57, two parallel cylinders 60 slidably attached at right angles to the frame 59, a piston rod 61 of the piston 60, and a frame 62 on the head end side of the cylinder 60. The guide rod 63 is integrally attached to the frame 59 via the frame 59, and is slidably attached to the frame 59. cylinder 6
0 was provided so that when inserted between the fixed mold 6 and the movable mold 7, the rod end coincided with the axial direction of the machine and the rod end side faced the fixed mold 6.
60a is a gasket provided between the cylinder 60 and the frame 59, which allows the cylinder 60 to float slightly. At the tip of the guide rod 63,
A member 64 having a relatively thin rectangular cylindrical portion 64a and a bottom portion 64b is rotatably attached, and the member 64
A trunnion-shaped cylinder 65 is attached to the frame 62, and a pin 6 is attached between the tip of the piston rod 66 of the cylinder 65 and a part of the member 64.
7 so that it can rotate 90 degrees. 6
8 is the bearing. A cylinder 69 is provided at the bottom 64b of the member 64 in a direction perpendicular to the axis of the guide rod 63, and an insert extrusion member 71 is provided at the tip of the piston rod 70 of the cylinder 69 so as to be movable within the rectangular cylindrical portion 64a. I installed it.
A cylindrical protrusion 72 is provided on the insert receiving portion of the member 64, and a cylindrical insert holding member 74 having a tip wall 74a is slidably attached around the protrusion 72 via a packing 73. Ta. The insert pushing member 71 was provided so as to hang immediately in front of the rear end flange 74b of the insert holding member 74, and a compression spring 75 was provided between the inner wall of the tip wall 74a of the insert holding member 74 and the protrusion 72 of the member 64. . Tip wall 74a of insert holding member 74
A convex engaging portion 74c is provided at the center of the outside of the cylindrical core 7 attached to the movable mold 7.
It was designed so that it could be engaged with a concave engaging portion 76a provided at 6. The insert 21 is held closely around the insert holding member 74, as shown in FIG.
In the engaged state of 76a, the insert is pushed out around the core 76 by the advancing action of the insert push-out member 71. However, in this case, in order to prevent the insert 21 from falling from the core 76, a pin 80 for holding the insert is provided so as to be removable from the movable mold 7. Note that when the insert pushing member 71 pushes out the insert 21, the insert holding member 74 also moves forward due to the action of the compression spring 75, and the engaging portions 74c,
The protrusions 76a move forward until they engage with each other, but if there is space for installation, compressed air may be introduced from the bottom of the protrusion 72 instead of the compression spring 75. Rectangular tubular portion 64a of member 64
As shown in FIGS. 8 and 9, the tip of the movable mold 7 can be engaged with an engaging portion 7a provided on the inner wall surface of the cavity of the movable mold 7 at its forward limit.

As shown in FIG. 2, the product take-out device 17 includes a cylinder 77 attached to the rotating frame 15 immediately below the insert supply device 16, a conventional product chuck portion 78, and the like. 79 is a guide rod. Here, an example was shown in which the product take-out device 17 and the insert supply device 16 were attached to the same rotating frame 15, but this is different from the example in which they are each attached to separate rotating frames 15 and rotated separately. You can do it like this. In the product chuck part 78,
A cylinder was installed to rotate the product chuck part 78 by 90 degrees.

Next, the operation of the device will be explained.

First, as shown in FIG. 2, with the insert receiving portion 29 of the insert delivery device 12 vertical, the cylinder 26 is operated to transfer one insert 21 to the moving table 2 of the insert fitting stocker 11.
0 to the insert receiving part 29. The receipt of the insert 21 is confirmed by the phototube device 48.

Next, as shown in Figs. 3 to 5, the cylinder 3
3 to bring the insert receiving portion 29 into a horizontal state. Then, the double cylinder 50 of the insert delivery device 13 facing the insert receiving part 29 is advanced, the inner rod 46 and the outer rod 47 are advanced, and the insert receiving part 29 is moved forward.
and insert the tip of the inner rod 46 into the insert 21. The state at that time is shown in FIG. If it continues to move forward from the state shown in FIG. 4, the receiving seat 35 will be pushed by the tip of the inner rod 46 or the tip of the insert 21.
When the position detector 44 is activated, the rod 41 is pushed by the inner rod 46 from the middle, and one of the position detectors 45 is activated, confirming that the insert 21 is securely held at the tip of the inner rod 46. .

At this time, as described above, if the insert 21 is inserted in the opposite direction, the chamfered part 21a of the insert 21 will be on the left side in FIG. The tapered portion 46a of the inner rod 46 is adjusted by the dimension of the recessed portion 21a.
is on the right side, so inner rod 4
Even if the outer rod 47 and the outer rod 47 are moved forward as they are, the position detector 44 will operate, but the rod 41 will not be pushed by a sufficient stroke and the position detector 45 will not operate. Therefore, the position detector 4
Depending on the operation or non-operation of 4 and 45, the insert 2
1 is in a normal state or in the opposite direction. In the unlikely event that the insert 21 is inserted in the opposite direction, the inner rod 46 should be moved back and the insert 21 should be taken out by the operator or with a take-out device (not shown), or the cylinder 33 should be actuated. Slide the insert 21 down with the tip of the insert receiving part 29 diagonally downward, or take it out of the insert receiving part 29 together with the inner rod 46, rotate the double cylinder 50 to the desired position, and then , the outer rod 47 is advanced, and the insert 21 is pushed out from the inner rod 46 and recovered.

If the insert 21 is held in the insert receiving part 29 in a normal state, the insert receiving part 2
9 to make it easier to take out the insert 21, then move the outer piston rod 52 and inner piston rod 53 of the insert delivery device 13 backward, and place the insert 21 into the insert receiving part 2.
Take it out from 9. In addition, the insert receiving part 29 is
Thereafter, it is returned to the vertical position and is ready to receive the next insert 21.

Next, as shown in FIG. 6, the cylinder 50a
to operate the double cylinder 50 in a horizontal position.
It is rotated 90 degrees to face the insert feeding device 16, and the insert feeding device 16 is also directed to the insert delivery device 13.

In this state, pressure oil is supplied to the head end side of the cylinder 60 of the insert delivery section 58. Then, first, the piston rod 61 with the least resistance moves forward, and the tip of the piston rod 61 hits the bracket 54 and stops. If pressure oil is continued to be supplied to the head end side in this state, cylinder 6
0 moves forward toward the head end, and the member 6
The engaging portion 64a at the tip of the bracket 4 hits the bracket 55 and stops. At this time, the insert supply device 16
The center line of the insert receiving portion coincides with the center line of the insert holding portion of the insert delivery device 13.
This state is shown in FIG.

When the state shown in FIG. 6 is reached, the double cylinder 50
Pressure oil is supplied to the head end side of the insert 21, and the inner piston rod 53 and outer piston rod 52 are advanced to advance the insert 21. Then, the tip of the inner rod 46 comes into contact with the tip wall 74a of the insert holding member 74, and the engagement portion 4
6b and 74c are stopped in a state where they are engaged with each other.
If pressure oil is continued to be supplied in this state, only the outer piston rod 52 will move forward, and the outer rod 47 will push out the insert 21 and move the insert 21 to the outer periphery of the insert holding member 74.

When the insert 21 is transferred to the insert holding member 74, the inner rod 46, outer rod 47, etc. of the insert delivery device 13 are returned to their original states to prepare for receiving the next insert 21.

During this time, the movable mold 7 and the fixed mold 6 are opened.
During this time, the product chuck part 78 of the product take-out device 17 is inserted, and the molded product 81 injected from the movable mold 7 is grabbed and taken out of the machine on the insert supply side.

Next, the cylinder 6 of the insert supply device 16
After supplying pressure oil to the rod end side of 0 and retracting the piston rod 61 and the cylinder 60 itself, the cylinder 56 is operated and the insert delivery section 58
can be retracted. This state is shown in FIG.

Subsequently, the rotating frame 15 is rotated clockwise. However, during this rotation, the rotation of the product ejecting device 17 is stopped at the water tank 18 section, and the product chuck section 78 is rotated 90 degrees around the axis of the product ejecting device 17, so that the molded product 81 is placed downward. Then, lower the product chuck 78 and place the molded product 81 in the water tank 18 to cool it. After the molded product 81 is lifted from the water tank 18, the rotating frame 15 is further rotated to orient the insert delivery section 58 in a direction perpendicular to the die-casting machine. In this state, the cylinder 77 of the product take-out device 17 is operated to move the molded product 81 to the right product take-out position in FIG. 2, where it is separated from the product chuck portion 78. This molded product 81
is carried to the trimming device 19, where it is trimmed, and then carried to a desired position.

On the other hand, in the insert supply device 16, the cylinder 56 is operated to advance the insert delivery section 58 to a desired position between the movable mold 7 and the fixed mold 6, which are being opened. At this time, the insert delivery section 58 moves the guide rod 6 due to the operation of the cylinder 65.
Rotate it 90 degrees around the axis line number 3.

As shown in FIGS. 8 and 9, the cylinder 60 is operated in the forward position to bring the tip of the piston rod 61 into contact with the fixed mold 6, and the cylinder 60
The member 64 is moved forward toward the movable mold 7, and the engaging portion 64c of the member 64 is engaged with the engaging portion 7a of the movable mold 7. Then, the position where the insert 21 is held coincides with the centerline position of the core 76.

Subsequently, the cylinder 69 is operated to advance the insert pushing member 71 upward to advance the insert 21, and the insert holding member 74 itself is also advanced by the action of the compression spring 75, so that the engaging portion 74a is engaged with the engaging portion 76a of the core 76. If the cylinder 69 continues to move forward, only the insert 21 will move forward and the core 76 will move forward.
is pushed deep into the periphery. Note that the engaging portion 64
c, 7a and the engaging portions 74c, 76a, even if the core is slightly twisted, the gasket 60a provided between the cylinder 60 and the frame 59
Furthermore, due to the floating action of the packing 73 provided between the protrusion 72 and the insert holding member 74, the engagement action can be performed smoothly and reliably.

Once the insert 21 is pushed around the core 76, the pin 80 is advanced to hold the insert 21 so that the insert 21 does not fall.

Next, the cylinder 69 is actuated to retract the insert holding member 74, and the cylinder 60 is actuated to retract the piston rod 61 and member 64. Then, the cylinder 56 is operated to retract the insert delivery section 58 out of the die-casting machine. Then, the member 64 is moved 90 degrees by the operation of the cylinder 65.
Rotate it once and put it back in place, then insert the next insert 2.
Prepare to receive 1.

When the insert delivery section 58 comes out of the die-casting machine, the mold is clamped to prepare for injection of molten metal. However, at this time, the lower end of the insert 21 around the core 76 rests on a part of the fixed mold 6 and will not fall, so the pin 80 is moved back and the molded product 81 is molded. Try not to get in the way. Then, in this state, the molten metal is injected.

In the above embodiment, the insert supply device 16 receives the insert 21 in a horizontal state and inserts it into the movable mold 7 in a vertical direction, so a cylinder 65 for rotating the member 64 is provided. This example shows that if the insertion direction of the insert into the movable mold 7 is horizontal, the member 64
There is no need to provide a cylinder 65 for rotating the .
Of course, when charging the insert 21 into the fixed mold 6 or into both the movable mold 7 and the fixed mold 6, this can be easily done by slightly changing the structure or behavior of the insert delivery section 58. I can do it.

Further, in the embodiment, one rotating frame 15 is rotated to connect the insert feeding device 16.
Although the insert supply device 16 and the product take-out device 17 are rotated at the same time, it is also possible to attach the insert supply device 16 and the product take-out device 17 to separate rotation frames and rotate them separately or at the same time. can. Note that it is preferable that the rotating frame 15 be configured to be able to move up and down in accordance with the insert supply device and the product removal device.

Further, in the above embodiment, when the insert delivery device 12 detects whether or not the orientation of the insert 21 is in the normal state, the insert 2
Although an example in which detection is performed inside the insert 21 has been shown, if there is a protrusion or a flange portion on the outside of the insert 21, the detection may be performed outside the insert 21 by using them.

As described above, according to the present invention, as described in the claims, the insert supply device and the product removal device that are integrally attached to the rotating frame can be operated, so that the dead space for work can be reduced. It only works in one direction, making work easier and more efficient. In addition, the equipment is more compact, the number of parts is reduced, the installation area of the equipment is reduced, the surroundings of the machine can be used more effectively, and it is also safer. Of course, the supply of inserts can also be performed automatically, reliably, and easily.

[Brief explanation of drawings]

Figure 1 shows a conventional device similar to the device of the present invention.
FIG. 2 to FIG. 9 are plan views showing an example of an apparatus for carrying out the present invention, FIG. 2 is a plan view of the entire apparatus, and FIG. 3 is a view of the first insert. A vertical cross-sectional view of the delivery device, FIG. 4 is the − of FIG.
A line sectional view, FIG. 5 is a right side view of FIG. 3, FIG. 6 is a plan view of the second insert delivery device, FIG. 7 is a front view thereof, and FIG. 8 is a part of the insert feeding device. The plan view, FIG. 9, is a sectional view taken along the - line in FIG. 8. 1, 16... insert supply device, 2, 17...
...Product take-out device, 3...Molding machine, 4...Fixed plate,
5...Movable plate, 6...Fixed mold, 7...Movable mold, 11...Insert fitting stocker, 12,1
3... Insert delivery device, 14... Insert supply and product removal device, 15, 30... Rotating frame, 21... Insert, 23, 33, 50
a, 56, 60, 65, 69, 77... cylinder, 26... insert extrusion device, 29... insert receiving part, 35... receiving seat, 44, 45...
Position detection device, 46... Inner rod, 47...
...Outer rod, 50...Double cylinder, 5
4, 55... Bracket, 58... Insert delivery part, 60a, 73... Packing, 61... Piston rod, 63... Guide rod, 64... Member, 71... Insert extrusion member, 74... Insert holding member, 75... Compression spring, 76... Core, 78... Product chuck, 81... Molded product.

Claims (1)

[Claims] 1. An insert supply device and a product take-out device are attached to a frame rotatable in the horizontal direction on one side of the molding machine so as to be movable back and forth in a state where they intersect with each other in a plan view. Using the device, the insert supply device receives the insert at the insert receiving position outside the machine, and the product takeout device takes out the molded product in the mold to the outside of the machine on the insert supply side, and then the frame is Rotate the insert by an angle of , move the insert holding part of the insert feeding device to a position where it can be loaded into the machine, and
A method for supplying inserts and taking out products in a molding machine, in which the insert feeding device loads the insert into the mold after rotating the product picking device outside the machine, and the molded product is released from the product picking device. 2. The insert supply device, which loads inserts received outside the machine into the mold that is being opened, and the product take-out device, which takes out the molded products in the mold outside the machine, are rotated horizontally on one side of the molding machine. An insert supply and product take-out device for a molding machine, which is attached to a movably provided frame so as to be movable back and forth so as to intersect with each other in a plan view.