JPS583470B2 - Product transfer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a product transfer device that is attached to an injection molding device such as a die casting machine or an injection molding machine, or a machine tool.

Generally, when configuring an automated line for relatively large injection molding equipment, after the inspection after removing the cast product from the mold, the removal of the runner, etc. It is necessary to store the cast products together, and a product transfer device is required that can transport the cast products to this stock position and position them in an orderly manner in preparation for the next process.

Such devices are also necessary for machine tools that perform cutting, etc., and in particular, it is necessary to prepare the processed products for the next process or to stack them in an orderly manner in the correct position to prevent them from collapsing. There is.

The present invention was made in response to such demands, and provides a product transfer device that can arrange stock products in an orderly manner by configuring the stopping position of a traveling frame that grips and moves products to be changed accurately and sequentially. This is what we provide.

Hereinafter, details of the present invention will be explained along with embodiments shown in the drawings.

1 and 2 are a plan view and a side view showing the entire apparatus of the present invention, in which the product transfer apparatus, which is designated by the reference numeral 1 as a whole, has a base frame 2 and a 2 frame horizontally suspended on the base frame 2. line rail 3
, 3, etc., which can freely run on wheels 4.

As is clear from FIG. 2, the front of the base frame 2 is a stepped portion 6 formed one step higher, and this stepped portion 6 is provided with a plurality of stoppers at regular intervals in the traveling direction of the traveling frame 5. 7 is placed.

As shown in FIG. 5, each stopper 7 has one end attached to the lower end inside the base 72, and has a clevis-type cylinder 9 whose upper end rod is connected to a rotating arm 8 as a driving source. A rotating arm 8 is fixed to the outer end of a shaft 11 rotatably supported in a bearing 10 fixed on the base frame 2,
At the inner end of the shaft 11, there is a stopper plate which can be moved by the cylinder 9 to a position where it does not interfere with the movement of the running frame 5, which will be described later, as shown by a chain line in FIG. 12 is installed.

In addition, a block 45 provided on the rear side of this stopper 7
This will be discussed later.

On the other hand, the traveling frame 5 is provided on a rail 3-t so that it can freely travel, and is configured to be able to travel by itself using a motor 13 as a driving source.

The running frame 5 itself has a pair of frames 5a, 5a in a state where it just straddles the rail 3, and both frames 5
As shown in cross section in FIG. 4, between a and 5a, a pair of rotary shafts 14, 14 are provided oppositely on the same axis, and are rotatably supported with respect to the frame 5a. A swing frame 15 is attached.

The swing frame 15 is formed into a substantially cylindrical shape, and a chuck device 16 arranged concentrically therein is disposed therein.

The chuck device 16 has a cylinder 1 as shown in cross section in FIG.
7, and the swing frame 15 is rotatably attached to the outer peripheral surface of the cylinder 17 via a bearing 18.

Two guide grooves 19 are annularly formed on the cylinder 17 side, and in this annular guide groove 19 are protrusions 22 of two stoppers 20 and 21 attached to the swing frame 15 side. are slidably fitted.

Projections 23 are provided in each of these annular guide grooves 19 with a phase shift of 180 degrees, and the projections 22 of each stopper 20.21 stop at a position in contact with these projections 23. This is taken into consideration.

A cylinder 24 is arranged concentrically within the cylinder 17 of the chuck device 16, and several chuck claws 25 are attached to the tip of the cylinder 24.

As shown in FIG. 6, the chuck claw 25 is rotatably attached via a bracket 27 protruding from the side surface of a block 26 attached to the tip of the cylinder 24, and the rear end of the chuck claw 25 is Air cylinder 28 with protruding ends
It is configured to be able to hold the product by supplying air to the container.

Further, a positioning arm 29 is fixed to one end of the co-rotating shaft 14 of the swing frame 15.
A guide roller 30 is rotatably supported on the outer end of the guide roller 9 .

At the back of each stopper 7, when the swing frame 15 stopped by the stopper is in a vertical state,
A block 45 is provided against which the guide roller 30 rests, and the cooperation of the positioning arm 29 and the block 45 ensures that the swinging frame 15 is accurately positioned at a predetermined position.

That is, as shown in FIGS. 1 and 2, the block 45 of the stopper 7 is located below the locus of movement of the positioning arm 29, and the arm 29 rotates as the swing frame 15 rotates. The rotation causes the guide roller 30 to hit the block 45, and the reaction force advances the traveling frame 5 to a predetermined position, thereby correcting the position.

Further, as is clear from FIGS. 3 and 4, a swing cylinder 3 is provided on the side of the swing frame 15 in parallel with the swing frame 15.
1 is attached, and its sliding rod is located on the side of the swing frame 15 as shown in FIG. 4, and is configured so that the swing frame 15 can be rotated by a rack and pinion mechanism (not shown). has been done.

On the other hand, as is clear from FIG. 6, an operating handle 32 is attached to the tip of the cylinder 17 as shown by the chain line, and the operator can use this operating handle 32 to rotate the cylinder 17, which is a rotating frame. chuck jaw 2
5, the chucked product can be rotated approximately 180° and inspected.

Furthermore, as shown in FIG. 2, when the traveling frame 5 is in the retracted position with respect to the base frame 2, a cylinder 34 is attached below the base frame 2 to knock down the runner 33a protruding from one end of the product 33 chucked by the chuck claws 25. The removed runner 3 is located in front of this cylinder 34.
A hopper 35 is attached to receive and discharge the hopper 3a.

By the way, in the case shown in FIG. 7, the traveling frame 5 is in the first position.
This is a kind of safety device provided to prevent the running frame from floating when it is in the position shown in Figure 2, and has a hook 36 that can be hooked onto a protrusion 56 protruding from the rear end of the running frame 5. , this hook 36 is rotatably supported on the side surface of the base frame 2 by a shaft 37, and the other end of this hook 36 is rotatably mounted on the tip of a rod 39 of a cylinder 38 attached to the side surface of the base frame 2. is connected to.

Therefore, by operating the cylinder 38, the hook 36 is rotated to lock the traveling frame 5,
You can release it.

A rod 40 is attached to the side surface of the traveling frame 5 at a position facing the stopper piece 12 of the stopper 7 so as to be slidable in the axial direction, and a limit switch 41 is attached to the rear end of the rod 40. installed.

Around the rod 40 are two blocks 42 fixed to the traveling frame 5, a block 43 fixed to the rod 48,
Compression spring 44 for buffering installed between blocks 42 and 43
is attached, and the rod 40 is normally urged forward on the side where the stopper 7 is located by the piece force of the compression spring 44, but as the traveling frame 5 moves forward, the tip of the rod 40 reaches a predetermined position. When the rod 40 hits the stopper piece 12, the rod 40 retreats with respect to the running frame 5, and a limit switch 41 is activated at the rear end of the rod 40, thereby stopping the running of the running frame 5.

A switch actuating member composed of the rod 40 and the like is provided at a position corresponding to the stopper piece 12 of the stopper 7.

That is, each stopper 7 is arranged at a position such that the stopper piece 12 selectively faces the movement path of the switch actuating member by its operation.

Next, the operation of the apparatus configured as above will be explained.

First, the cast product 3 is removed by a product take-out device (not shown).
3 is taken out and held by chuck claws 25 as shown in FIG.

At this time, as is clear from FIG. 2, the runner 33a of the cast product 33 is positioned in front of the cylinder 34.

Then, the cylinder 34 is actuated and its rod rapidly moves forward, knocking down the runner 33a and causing it to fall into the hopper 35.

When the removal of the runner 33a is completed, the operator operates the operating handle 32, rotates the chuck device 16, and inspects the outside of the cast product 33.

After the inspection is completed, the motor 13 is started to move the traveling frame 5 forward.

As the traveling frame 5 moves forward, the stoppers 7 are operated according to a predetermined sequence, but normally it is desirable to adopt a sequence in which the stoppers 7 are activated sequentially from the traveling frame 5 side.

By the way, among the stoppers 7, the stopper 7a closest to the traveling frame 5 side is a stopper for removing defective products.

That is, if it is detected by an operator's inspection that the cast product 33 has an appearance defect, the stopper 7a is placed in a state to stop the traveling frame 5 from moving, and the traveling frame 5 is allowed to move forward. Accordingly, the tip of the rod 40 protruding from the side surface is the stopper piece 12 of the stopper 7a.
When the limit switch 41 detects that the rod 40 is moving backward, the motor 13 is braked, and the running of the traveling frame 5 is stopped.

When the traveling frame 5 stops, the swing cylinder 31 is activated to rotate the swing frame 15 by 90 degrees so that the chuck claw 25 side faces downward.

At this time, the cylinder 24 housed in the cylinder 17 of the chuck device 16 acts as a damper, and the chuck claw 25
While holding the cast product, it slowly descends naturally due to its own weight.

Then, for example, as shown in Figure 2, it is gently lowered onto the trolley 46, etc.
The chuck jaws 25 are opened to release the product 33.

This operation is the same whether the cast product is defective or good, the only difference is that the position at which the product is unloaded is different, and in the case of a defective product, the loading position must be accurate. Therefore, the position is determined only by the positioning arm 29.

That is, in the case of a defective product, the product is simply lowered onto the trolley 46, whereas in the case of a non-defective product, it is operated to be lowered onto the correct position on the trolley 47.

If the cast product 33 is of good quality, it is loaded onto a trolley 47 located below where many stoppers 7 are located. In this case, for example, the stoppers 7 are operated one after another from the right side in FIG. 2.

Of course, the order in which the stoppers 7 are operated can be appropriately selected and set in advance.

When the traveling frame 5 moves forward and is stopped by the operation of the first stopper 7, rod 40, limit switch 41, etc., the swing frame 15 is moved to 90° by the action of the swing cylinder 31.
It rotates, and the cylinder 24 and chuck claw 25 part face downward.

In this state, the product chuck part attached to the tip of the piston rod of the cylinder 24 moves downwards due to its own weight, and the cast product 33 is removed from the cart 47 and other cast products 33 already loaded on the cart 47. The product chuck part stops when the product is placed gently on top of the product.

In this case, since it is allowed to fall under its own weight, the cast product 33 is not damaged when it is lowered.

Here, when the preset timer times out, the chuck portion is opened and the cast product 33 is released.

When the cast product 33 is loaded on the truck 47, the cylinder 24
is activated to raise the chuck portion, then the swing frame 15 is returned to a horizontal state, and the traveling frame 5 is moved backward.

When the chuck portion grasps the next cast product 33 while the traveling frame 5 is in the retreat position, the product is inspected and the runner is removed as described above, and the traveling frame 5 is moved forward. In this case, the first stopper 7 is returned to a position where the traveling frame 5 does not stop traveling.

Therefore, the traveling frame 5 stops at the second stopper 7, and by the above-described operation, the carriage 47
Place the cast product 33 in the second position.

In this way, by sequentially operating the stoppers 7 and reciprocating the traveling frame 5, the cast products 33 are sequentially loaded onto the truck 47.

Since the rod 40 that stops the running frame 5 is biased forward by a compression spring 44 for buffering, the elastic force of the compression spring 44 causes the running frame 5 to move back slightly after it has stopped, until it reaches the stopping position. A shift occurs.

This positional shift is corrected by a positioning arm 29 provided on the swing frame 15 side and a block 45 provided on the back of the stopper 7.

That is, as the chuck device 16 rotates, the swing arm 29 attached to the side of the swing frame 15 also rotates, and the guide roller 30 provided at the tip of the swing arm 29 moves toward the stopper 7 against which the rod 40 hits. Since it is regulated by hitting the block 45 of the stopper 7 one position further back, the traveling frame 5 is pushed forward by that amount due to the reaction force, corrected to an accurate position, and stopped downward.

In addition, in FIGS. 1 and 2, the block that functions when the rod 40 hits the rearmost stopper 7 is not shown, and the stopper when the frontmost block functions is indicated by the reference numeral 7b. .

Since this stopper 7b determines the forward limit of the traveling frame 5, it is not provided with a driving device like the other stoppers 7.

In the present invention, an embodiment has been shown in which the product chuck part is lowered at the position of the stopper 7 and the cast product 33 is loaded onto the trolley 47. Alternatively, the product chuck part may be immediately opened at the stopper 7 position, and the cast product may be released immediately at this position.

Further, in one embodiment of the present invention, the stopper 7 is rotated around the shaft 11, but the stopper piece 12 may be moved forward and backward to be activated or released.

As is clear from the above description, according to the present invention, the traveling frame running on the base frame can be sequentially stopped at a predetermined position by the operation of several stoppers. Automatic loading of products can be carried out reliably and easily.

Further, since the stop position of the traveling frame can be corrected by using the rotation of the swinging frame, the products can be stacked in an orderly arrangement at the stock position.

Furthermore, if the configuration shown in the embodiment is adopted, the following effects can be expected.

That is, a swinging frame that can be moved between horizontal and vertical positions is attached to the running frame, a chuck device for chucking the product is attached to this swinging frame, and stoppers placed on the base frame are sequentially activated to move the running frame. By stopping the machine and vertically displacing the swinging frame, it is possible to quietly unload the loaded product using its own weight using a cylinder with a damper function, so the product taken out of the device can be automatically transported to the target position. , and can be expected to have the effect of not damaging the product.

[Brief explanation of the drawing]

The drawings are for explaining one embodiment of the present invention, and Fig. 1 is a plan view, Fig. 2 is a side view, Fig. 3 is a front view, and Fig. 4 is a cross section taken along line A-A in Fig. 1. 5 is a sectional view taken along the line B--B in FIG. 1, FIG. 6 is a longitudinal sectional side view of the safety device, and FIG. 1 is a front view of the positioning mechanism. 1...Product transfer device, 2...Base frame, 3
...Rail, 5...Travel frame, 7
, 7a, 7b... Stoppa, 12...
Stove piece, 13...Moke, 14...
・Rotating axis, 15... Swinging frame, 16...
... Chuck device, 11 ... Cylinder (rotating frame), 19 ... Guide groove, 20. 21...
...Stopper, 24...Cylinder, 25...
... Chuck jaw, 29 ... Positioning arm,
30... Guide roller, 31... Swing cylinder, 40... Rod, 41... Limit switch, 44... Compression spring, 45...
... Block.

Claims (1)

[Claims] 1. A traveling frame that travels forward and backward in the direction of product transfer, a swinging frame that is rotatably supported by the traveling frame and equipped with a chuck device that grips the product, and a swinging frame that is provided on the traveling frame and is moved by its pushing motion. a switch actuating member for actuating a switch that stops the running of the
A plurality of stoppers are provided along the traveling direction of the traveling frame and each has a stopper piece that selectively faces the movement path of the switch actuating member, and each of the stoppers is attached to each stopper and the stopper plate is sequentially moved to the switch actuating member. a positioning arm that is attached to one end of a shaft that supports the swing frame and rotates as the swing frame rotates; A product transfer device comprising: blocks arranged at the same spacing as the spacing between the stoppers.