JPH049283Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention automatically stores columnar molded objects that are continuously fed in an upright state into a molded object storage box in an upright alignment. The present invention relates to a continuous boxing device for molded bodies, and in particular to a continuous boxing device suitable for molded bodies that are easily damaged by impact force or slippage, such as powder molded bodies.

[Prior Art] For example, in the fuel rods constituting the nuclear fuel assembly of a power reactor, there are many pellets made of uranium dioxide formed into a cylinder shape with an outer diameter of about 10 mm and a length of about 15 mm. is filled.

These pellets are made by compression molding raw material powder, uranium dioxide powder, using an automatic powder molding machine (for example, a rotary press machine) to create compacted pellets. (hereinafter referred to as a "sintered boat") and sintered it, a dense and strong sintered body is obtained.

By the way, such pellets are molded from an automatic powder molding machine at the rate of several to several hundred pieces per minute and are continuously discharged in an upright position. When filling, a so-called chute-type pellet filling device is mainly used in which the pellets are moved above the sintering boat using a conveyor or the like and then dropped and filled into the sintering boat at random.

[Problems to be solved by the invention] However, the pellets discharged from the automatic powder molding machine are powder compacts, and the bond between the powder particles is weak and the strength is low. According to this type of pellet filling device, when the pellets fall into the sintering boat, chips, cracks, and cracks occur at the edges of the pellets themselves, resulting in a high incidence of defective products. Since the pellets are randomly filled into the sintering boats, there are problems such as the amount of filling into one sintering boat is small and it is extremely uneconomical.

[Purpose of the invention] This invention was made in view of the above circumstances.
For example, a large number of molded objects, such as pellets, which are molded objects in powder metallurgy, which are easily damaged due to impact force or slipping, can be automatically and efficiently stored in a storage box for molded objects such as a sintering boat without causing damage. It is an object of the present invention to provide an automatic boxing device for molded objects, which can be packed into boxes and has extremely high boxing efficiency.

[Means for Solving the Problems] The continuous boxing device for molded bodies of the present invention includes a horizontal alignment plate provided on the main body of the device, and a molded body supply chute that is provided on the same plane as the top surface of the alignment plate and located on the same plane as the top surface of the alignment plate. a molded body guide part that communicates and introduces the columnar molded bodies in an upright state in one row, and a pusher plate that pushes out a predetermined number of molded bodies introduced into the guide part in batches onto the alignment plate in an upright state. a carry-in mechanism provided on the apparatus main body to carry the molded object storage box to a predetermined boxing work position; and a predetermined number of molded objects arranged movably on the apparatus main body and arranged on the alignment plate on the lower surface. a vacuum suction mechanism that has suction holes that match the upper surfaces of each of the molded bodies and is capable of collectively vacuum suctioning and releasing the molded bodies from above; a moving mechanism that reciprocates between the molded body storage box and the molded body storage box provided in the main body of the apparatus and capable of moving up and down the molded body storage box at the packaging work position; an elevating mechanism unit that lowers the molded body storage box by approximately the height of the molded body each time the molded body is stacked step by step; and a carry-out mechanism provided in the apparatus main body that carries out the molded body storage box at the boxing work position. The molded body guide portion includes:
A guide groove formed by a pusher plate that can move forward and backward with respect to the alignment plate, a lifting guide plate that is attached to a position opposite to the pusher plate so as to be able to move up and down, and an adjustment member that adjusts the retreating position of the pusher plate. and a position detection sensor for detecting that the molded object has reached a predetermined position is provided in the guide groove and the alignment plate, respectively, the position of which can be adjusted.

[Function] In the continuous boxing device for molded bodies having the above configuration, first, the molded bodies are introduced into the molded body guide part in a line in an upright state, and then these molded bodies are pushed onto the alignment plate by the pusher plate. . Next, the molded bodies arranged on the alignment plate are collectively vacuum-sucked by the vacuum suction mechanism, and then the vacuum suction mechanism is moved to the boxing work position by the moving mechanism.

On the other hand, in parallel with this, an empty molded product storage box is carried into the boxing work position by the carrying mechanism, and then this molded product storage box is raised by the lifting mechanism. Next, in this state, the adsorption of the molded object in the vacuum suction mechanism is released, and the molded object is stored in the empty molded object storage box. Then, by repeating the above operation and lowering the height of the molded object storage box by the height of the molded objects each time using the lifting mechanism, a predetermined number of stages are built up in the molded object storage box. Store the molded object. Next, the molded object storage box containing the molded objects in this manner is carried out from the boxing work position by the carrying-out mechanism. Detection of the molded body in the guide groove and the alignment plate and detection on the alignment plate are performed by a position detection sensor, and a signal indicating that the next step should be performed is thereby output. When the size of the molded object changes, the length and number of rows of the molded object rows can be adjusted by changing the mounting position of the position detection sensor. In addition, by operating the adjustment member to adjust the position of the pusher plate and changing the groove width, the molded bodies can be carried into the molded body guide section smoothly and arranged in an aligned state.
During the extrusion process using the pusher plate, the molded bodies do not shift in position, and as a result, they are packed in boxes in an orderly manner.

[Example] Hereinafter, as an example of this invention, a rotary press type powder molding machine will continuously mold powder with an outer diameter of about 10 mm.
An apparatus configured to automatically store nuclear fuel pellets P compacted into a cylindrical shape with a length of approximately 15 mm into a sintering boat W will be described with reference to the drawings.

Reference numeral 1 in FIGS. 1 to 3 indicates an apparatus main body, and on a pedestal 1a of this apparatus main body 1, pellets P from a powder molding machine (not shown) are arranged once on an alignment plate 2. The main parts are an operating section 3 and a transfer operating section 4 for storing the pellets P arranged on the alignment plate 2 into a sintering boat W.

First, the alignment operation section 3 will be explained.

The alignment plate 2 in the operating section 3 is flat and fixed horizontally at a predetermined height position on the pedestal 1a. A pair of guide plates 5 and 6 are attached to both sides of the upper surface of the alignment plate 2 in parallel with each other with a predetermined distance 1 between them. One guide plate 5 is fixed, and the other guide plate 6 is fixed within a predetermined range in the direction opposite to the one guide plate 5 by a bolt 7 screwed into the alignment plate 2 through its long hole 6a. The movement is said to be adjustable.

Further, the guide plate 5 on the alignment plate 2,
A guide portion (molded body guide portion) 9 that forms a guide groove 8 for one row of pellets P is provided on the left side in FIG. This guide part 9
The guide groove 8 is the belt conveyor 1 with a guide.
0 to a pellet supply chute of a powder compacting machine (not shown). This powder molding machine is
The belt conveyor 10 continuously forms cylindrical nuclear fuel pellets P with an outer diameter of about 10 mm and a length of about 15 mm and sequentially discharges them in an upright state.
Hold the pellet P from the powder molding machine in an upright position 1
It is configured to be continuously conveyed while being guided in rows. Therefore, the guide groove 8 of the guide portion 9
In this case, the pellets P are continuously introduced in one row in an upright position.

The guide groove 8 in the guide portion 9 has a base end portion located on the belt conveyor 10 side formed by a pair of fixed guide plates 11 and a movable stopper plate 12. This stopper plate 12 is adapted to narrow the groove width of the guide groove 8 and stop the movement of the pellet P by being appropriately displaced toward the fixed guide plate 11 side by the first air cylinder 13. . Also,
The tip portion of the guide groove 8 is connected to a pair of elevating guide plates 14 and a pusher plate 15 having a length approximately equal to the length l between the guide plates 5 and 6.
It is formed by

As shown in FIG. 2, this elevating guide plate 14 is attached to the apparatus main body 1 so as to be able to rise and fall freely, and when it is in the lowered position, the pellet arrangement space between the guide plates 5 and 6 is and the guide groove 8, and when the pellet arrangement space is in the raised position, the pellet arrangement space and the guide groove 8 are communicated with each other. This elevating guide plate 14 is connected to a second air cylinder 16, and is adapted to be moved up and down as appropriate.

On the other hand, the pusher plate 15 is attached via its guide rod 17 to a guide block 18 on the apparatus main body 1 so as to be movable in the left and right directions in FIG. This pusher plate 15 is connected to a third air cylinder 19, and is operated to repeatedly move the pellets to the right in FIG. 3 by the outer diameter of the pellets P. ing. Further, the tip portion of the guide groove 8 is closed by the guide plate 6. A first sensor 20, such as a photoelectric sensor, is provided at the tip of the guide groove 8 to detect that the pellet P has moved to this portion.

In addition, the second and third air cylinders 16 and 19
As shown in FIG. 2, each of the piston rods is provided with detection switches 21 and 22 for detecting the extension and retraction states of the piston rods to ensure a series of pellet alignment operations.

On the other hand, a photoelectric feed pellet detection switch 23 is provided at a predetermined upper position of the belt conveyor 10 to detect the passing state of the pellets P.
When the pellet P is abnormally accumulated on the belt conveyor 10 due to a delay in the series of pellet alignment for some reason, the detection switch 23 outputs an abnormality detection signal to temporarily stop the pellet powder molding machine (not shown). It's becoming like that.

Furthermore, a photoelectric alignment detection switch 24 is provided on the alignment plate 2 to detect when the first row of pellets P to be aligned has been pushed to a predetermined position (see Fig. 2). ), this alignment detection switch 24 detects that a predetermined number of pellets P are aligned.

Here, the number of pellets P arranged on the alignment plate 2 is determined by adjusting the position of the guide plate 6 in the upper and lower directions in FIG. It can be set arbitrarily by position adjustment. In the case of this example, the arrangement form of pellets P is (12 [pieces] x 20
[column]) or (11 [pieces] x 18 [column]), and by adjusting the position of the guide plate 6, the guide surface of the guide plate 6 and the lifting guide plate 14 and the In order to avoid a large gap from forming between the guide plate 6 and the shear plate 15, the guide plate 6 has a recess 6b, and the lifting guide plate 14 and pusher plate 15 each have a recess 6b with a shape that matches the recess 6b. Projections 14a and 15a are shaped. Further, the movement limit position of the stopper plate 12 and the pusher plate 15 to the left in FIG.
Appropriate fine adjustment is possible with an adjustment screw 25 and an adjustment screw (adjustment member) 26 screwed together on the device main body 1 side, respectively.

Next, the transfer operation section designated by the reference numeral 4 in the above description will be explained.

As shown in FIGS. 1 and 2, this transfer operation section 4 includes a vacuum suction mechanism 27 for collectively vacuum suctioning the pellets P arranged in a predetermined manner on the alignment plate 2 from above. (See FIGS. 4 and 5) is movably provided on the apparatus main body 1 side via a substantially L-shaped arm 28.

As shown in FIGS. 4 and 5, the vacuum suction mechanism 27 includes a suction cup 29 attached to the lower end of the arm 28 and a suction pipe 30 of the suction cup 29 connected via a vacuum valve (not shown). The suction cup 29 is composed of a pad 31 and a sealed hollow box 32. This pad 31 has a lower surface shape that simultaneously matches each upper surface of each pellet P arranged in a predetermined form on the alignment plate 2, and has a shape that coincides with each upper surface of each pellet P arranged in a predetermined form on the alignment plate 2, and at each position facing the upper surface of each pellet P. Suction hole penetrating upward and downward (not shown)
is formed. Inside the sealed hollow box 32,
A sealed space is formed for communication between the upper part of each suction hole of the pad 31 and the lower part of the suction pipe 30.
Therefore, this vacuum suction mechanism 27 is capable of simultaneously suctioning and releasing the suction of the pellets P aligned on the alignment plate 2 in their aligned form by opening and closing the valve.

Further, an elevating body 33 is attached to the base end of the arm 28 that holds the vacuum suction mechanism 27, and this elevating body 33 is held between two poles 34 so as to be able to rise and fall freely. A plate 35 attached between the upper ends of each pole 34 is equipped with a fourth air cylinder 36 for raising and lowering the elevating body 33. Further, the lower end of each pole 34 is fixed onto a slide body 37. The slide body 37 is guided by a pair of rails 38 laid at a predetermined height position on the pedestal 1a of the apparatus main body 1 so as to be movable in the left and right directions in FIG. A plate 39 attached to the apparatus main body 1 on the right side of each rail 38 in FIG. 1 is equipped with a fifth air cylinder 40 for sliding the slide body 37 in the left and right directions in the figure.

Therefore, the vacuum suction mechanism 27
A moving mechanism 41 consisting of air cylinders 36, 40, etc. allows it to be moved upward, downward, leftward, and rightward in FIG. The movement range in each direction is determined by the upper stopper screw 42 for setting the lifting limit position of the elevating body 33, the lower stopper screw 43 with a cushion, and the slide body 37.
Left stopper screw 4 for setting the travel limit position of
4. It can be adjusted as appropriate using the right shock absorber 45.

Also, the fourth and fifth air cylinders 36, 40
As shown in FIG. 2, the vacuum suction mechanism 27 is located above the alignment plate 2 shown by the solid line in FIG. Detection switches 46 and 47 are provided for stopping at the boxing work position A below the position indicated by .

The operation timing of the transfer operation unit 4 starts when a predetermined number of pellets P are arranged on the arranging plate 2, and ends before the next row of pellets P is pushed out onto the arranging plate 2. It is set to end between.

Further, the transfer operation section 4 is equipped with a conveyance mechanism 48 for a sinter boat W for pellets, as well as the vacuum suction mechanism 27 and the movement mechanism 41.

This conveyance mechanism 48 includes a belt conveyor 49 extending along the left and right directions in FIG. This belt conveyor 49 is arranged on the pedestal 1a of the apparatus main body 1 so as to be located below the boxing work position A of the pellets P and below the alignment plate 2,
The sintering boat W can be transported from the right side to the left side in FIG. The right side of this belt conveyor 49 is connected to the supply line _L1 of the empty sintering boat W. This supply line _L1 is inclined so as to supply itself by utilizing the weight of the empty boat W, and a stopper mechanism 5 for appropriately supplying the empty boats W one by one.
It is equipped with 0.

This stopper mechanism section 50 is connected to the supply line L ₁
It is constructed using a gate-shaped plate 51 attached as a substrate so as to straddle the board. That is, a stopper plate 53 is rotatably attached to the intermediate portion of the horizontal plate-like portion of the plate 51 via a pin 52, and a sixth air cylinder is provided for rotating the stopper plate 53. 54 is equipped. And the sixth air cylinder 5
4 is extended and the stopper plate 53 is rotated downward, as shown in FIG. On the other hand, when the sixth air cylinder 54 is retracted and the stopper plate 53 is rotated upward, its tip is displaced upward to allow the empty boat W to move. There is.

In addition, at an intermediate position of the belt conveyor 49, the boat W on the belt conveyor 49 is placed between the pellets P and the boat W on the belt conveyor 49.
An elevating mechanism section 55 is provided for elevating and lowering the container to the boxing work position A. The elevating mechanism section 55 includes a stopper plate 56 that moves up and down and interposes in the conveyance path of the boat W, and a seventh air cylinder 57 that operates the stopper plate 56 to move up and down. This stopper plate 5
6 prevents the boat W on the belt conveyor 49 from moving at the lower limit position as shown in FIG. 2, and prevents the boat W on the belt conveyor 49 from moving at the upper limit position.
It has become possible to allow the movement of The position where the stopper plate 56 prevents movement of the boat W is set directly below the boxing work position A of the pellets P.

Furthermore, a pair of guide rods 58 are erected on both sides of the belt conveyor 49. As shown in FIGS. 6 and 7, an elevating frame 59 is guided between the guide rods 58 so as to be movable up and down. A pair of arms 60 are provided on both sides of the lifting frame 59 and extend horizontally along the sides of the belt conveyor 49. A boat guide 61 is attached to the upper part of these arms 60. Each boat guide 61 has a symmetrical shape with a substantially L-shaped cross section, and is adapted to match the lower left and right corners of the boat W whose movement is prevented by the stopper plate 56. .
An upper plate 62 is attached between the upper ends of each guide rod 58, and this upper plate 62 is equipped with a reversible motor 63. A screw shaft 65 is connected to the rotating shaft of the reversible motor 63 via a shaft coupling 66, which screws into a bush 64 provided on the lifting frame 59 from above. Therefore, the reversible motor 6
3, the elevating frame 59 moves up and down.

Note that the lowering limit position of the elevating frame 59 is set at a position where each arm 60 is displaced below the conveyance surface of the belt conveyor 49. Further, in the raised position of the lifting frame 59, a lifting position detection mechanism section 67 is provided at a portion where the lifting frame 59 and the apparatus main body 1 face each other.

This position detection mechanism section 67 is connected to the elevating frame 59
It consists of a switch operating member 68 attached to the side and a detection switch 69 fixed to the device main body 1 side (see FIG. 8). The switch operating members 68 are connected to a total of five pellets separated by an interval equal to the length of the pellet P plus a slight margin along the vertical direction.
It has two chevrons. Therefore, the vertices of these chevron portions are labeled P ₁ to _{P 5} from the bottom. The detection switch 69 has an operator 69a that contacts the chevron-shaped portion of the switch operating member 68,
The tip of this operator 69a is the peak of the chevron portion P ₁ to _{P 5}
The switch is activated when it regresses. That is, the position detection mechanism section 67 configured as described above detects the five raised positions of the elevating frame 59. Detection switch 6
Reference numeral 9 is connected to a control circuit of a reversible motor 63 that drives the elevating frame 59, so that the elevating frame 59 can be stopped at the five positions. Below, arm 6 in each of these positions
The positions of the boat W held above the boat W are referred to as the first to fifth pellet loading positions from below.

By the way, the relative positional relationship between the switch operation member 68 and the detection switch 69 is such that when the lowest vertex _P1 comes into contact with the operation element 69a, that is, when the arm 6
When the boat W on 0 is held at the first stage pellet loading position, the inner bottom surface of the boat W holds the pellets P, which are released from vacuum holding at the predetermined boxing work position A, in an aligned form. It is set up so that you can receive it.

The belt conveyor 49, the stopper mechanism section 50, and the elevating mechanism section 55 constitute a loading mechanism for the boat W.

In addition, M2 in FIG. ₂ indicates a drive motor for the belt conveyor 49, and a boat detection switch (for example, a photoelectric switch) for the boat W to be transported is installed on each of the carry-in side and the carry-out side of the belt conveyor 49. ) 70, 71 are provided. Further, the arm 60 of the elevating frame 59 is equipped with a boat detection switch (for example, a photoelectric switch) 72 for detecting that a boat W is held on the arm 60. The belt conveyor 49 and the drive motor M2 constitute a transport mechanism for the boat W.

The stopper plate 53 is equipped with a detection switch 75 (see FIG. 2) that detects its downward rotation limit position, and the seventh air cylinder 57 is equipped with a detection switch 75 that detects the extension and retraction states of the piston rod. Detection switches 76 and 77 (second
(see figure) is in place.

Further, the timing of the operation of this transfer mechanism 48 is determined by the timing of the operation of the vacuum suction mechanism 27 in the transfer operation section 4.
And it is set so as not to impede the continuous operation of the moving mechanism 41 at a constant period.

Next, the operation of the continuous boxing apparatus for molded bodies having the above structure will be explained in detail.

First, the belt conveyor 10 of the alignment operation section 3 is continuously operated by its motor _M1 , and the pellets P are conveyed in an upright state and pushed into the guide groove 8 in a line. When the pellets P are completely packed in one row between the lifting guide plate 14 and the pusher plate 15, that is, when the first pellet in the pellet row reaches the tip of the guide groove 8, One sensor 20 detects the arrival and derives a detection signal.

This detection signal first causes the piston rod of the first air cylinder 13 to extend. As a result, the stopper plate 12 lightly pinches the pellet P between it and the fixed guide plate 11, thereby stopping the flow of the pellet P. At this time, although the belt conveyor 10 is continuously operating, the movement of the pellets P on the belt conveyor 10 is blocked, and relative slippage occurs between them.

Thereafter, at a time slightly delayed from the detection signal, the piston rod of the second air cylinder 16 is extended, and the elevating guide plate 14 is raised.
Therefore, the pellet arrangement space on the alignment plate 2 and the guide groove 8 are communicated with each other. Incidentally, the lifting timing of the lifting guide plate 14 is set after the operation of stopping the pellet P from flowing is completed.

Thereafter, the piston rod of the third air cylinder 19 is extended. As a result, the pusher plate 15 collectively pushes out one row of pellets P between the pusher plate 15 and the elevating guide plate 14 into the pellet arrangement space on the alignment plate 2 in an upright state. This pushed out 1
By being guided by the guide plates 5 and 6, the pellets P in the row are placed on the alignment plate 2 in the upper middle part of FIG.
They are arranged in one row downward.

Thereafter, the piston rod of the third air cylinder 19 retracts and returns, then the piston rod of the second air cylinder 16 retracts and returns, and then the piston rod of the first air cylinder 13 retracts and returns. Therefore, the guide groove 8 is formed again, and the pellet P is guided into the guide groove 8.

After that, by repeating the same operation,
The pellets P are pushed out one by one onto the alignment plate 2 and are automatically aligned.

In this way, when a predetermined number of pellets P are aligned, the alignment detection switch 24 issues a detection signal, and as a result, the suction cup 29 in the standby position on the alignment plate 2 is lowered by the extension operation of the fourth air cylinder 36. At the lower limit position, the pad 31 moves to a position slightly above the pellets P on the alignment plate 2 (a position above about 0.3 to 0.5 mm).

Thereafter, the vacuum valve of the suction pipe 30 is opened, and the suction cup 29 attracts and holds the pellets P aligned on the alignment plate 2 in their aligned form.

Thereafter, the fourth air cylinder 36 retracts, and the suction cup 29 rises while holding the pellet P by suction. After the suction cup 29 reaches the upper limit position, the fifth air cylinder 40 retracts, and the suction cup 29 moves to the position shown by the two-dot chain line in FIG.

On the other hand, in parallel with these series of operations, the sixth air cylinder 54 of the stopper mechanism section 50 operates, and the stopper plate 53 rotates upward to release one empty boat W that has been locked. do. Therefore, this empty boat W is on the belt conveyor 49.
It slides to the upper carry-in side and is then conveyed by this belt conveyor 49.

By the way, when one empty boat W passes through the carry-in side of the belt conveyor 49, the boat detection switch 70 derives a boat detection signal. Then, the sixth air cylinder 54 operates based on this boat detection signal, and the stopper plate 53 quickly rotates downward to prevent the following empty boat W from moving. Therefore, this stopper plate 5
3 is one empty boat W by one reciprocating rotation
supply.

The empty boat W transported by the belt conveyor 49 is prevented from moving by the stopper plate 56 and is stopped on the arm 60 of the elevating frame 59. At this time, arm 60
An upper boat detection switch 72 derives a boat detection signal. Then, with a slight delay from when the boat detection signal is derived, the operation of the belt conveyor 49 by the motor M ₂ is stopped, and the reversible motor 63 is started, and the elevating frame 59 continues to operate while holding the empty boat W. It rises to reach the upper limit position. The fact that the lift frame 59 has reached the lift limit position is detected by a lift limit position detection switch 74 (see FIG. 2) for the lift frame.

Thereafter, when the motor 63 reverses and the lowest apex _P1 of the switch operating member 68 operates the detection switch 69, that is, when the empty boat W moves to the first stage pellet loading position, the reversible Motor 63 stops.

Through the above operations, while the empty boat W is held at the first stage pellet loading position on the arm 60, the fourth air cylinder 36 of the vacuum suction mechanism 27 is extended, and the suction cup is 29 descends. Then, at the boxing work position A, which is the lower limit position, the vacuum valve of the suction pipe 30 is switched, and the suction cup 29 releases the pellet P from suction. Therefore, the pellets P are moved from the alignment plate 2 to the predetermined boxing work position A in their aligned form.

Thereafter, the fourth air cylinder 36 is retracted, and then the fifth air cylinder 40 is extended, and the suction cup 29 returns to its original standby position. Then, each time the alignment detection switch 24 derives a detection signal, the transfer operation section 4 repeats a similar series of operations to automatically transfer the pellets P to a predetermined boxing work position A in the alignment state.

At this time, the conveyance mechanism 48
It operates in relation to the opening and closing operations of the vacuum valve of the suction pipe 30. That is, each time the suction cup 29 moves to the boxing work position A and the vacuum valve of the suction pipe 30 closes, the reversible motor 63 operates with a slight delay from the valve closing, and the Due to this cooperation, the elevating frame 59 is lowered step by step from the first stage to the fifth stage pellet loading position. Therefore, the pellets P whose vacuum holding is released from the suction cup 29 at the boxing work position A are transferred into the boat W and stacked one after another.

When the pellets P are stacked in five stages and loaded onto the boat W, the highest vertex _P5 of the switch operating member 68 moves downward from the operating position of the detection switch 69, and the elevating frame 59 continuously descends. and reaches the lowering limit position. The fact that the elevating frame 59 has reached the lowering limit position is detected by a lowering limit position detection switch 73 for the elevating frame (see FIG. 2). At the lowering limit position of the elevating frame 59, the boat W full of pellets is placed on the belt conveyor 49.

After that, the seventh air cylinder 57 is operated and the stopper plate 56 is raised to the upper limit,
Next, the drive motor _M2 operates, and the belt conveyor 49 carries out the boat W full of pellets to the left. This boat W is sent from the discharge side of the belt conveyor 49 to a pellet sintering line (not shown).

Incidentally, when the boat W passes through the discharge side of the belt conveyor 49, the boat detection switch 71 derives a boat detection signal. Then, the seventh air cylinder 57 is operated based on this boat detection signal, and the stopper plate 56 is lowered to the lower limit position.

Note that since the molded object guide section is composed of a pusher plate and a guide groove, the molded objects are arranged in an aligned state when carried into the molded object guide section, and are moved by the pusher plate, so that the formed objects are aligned. While maintaining their state, they are sequentially moved to the alignment board and arranged in a matrix.

In addition, when the size of the compacts or the speed at which they are carried in changes, by operating the adjustment member and adjusting the position of the pusher plate, the compacts can be carried into the compact guide section smoothly and the arrangement will be aligned. The extrusion process using the pusher plate is carried out in a state in which each molded body does not shift its position.
As a result, boxes are packed in an orderly manner.

After that, by repeating the same operation,
Carrying in the empty boat W, moving this boat W to the pellet loading position, and carrying out the boat W fully loaded with pellets are automatically carried out. In other words, the aligning operation section 3 and the transfer operation section 4 operate in a related manner at regular intervals, so that the boxing operation of the pellets P into the boat W is automatically carried out.

By the way, according to this embodiment, two types of pellets P, namely (12 pieces x 20 rows) and (11 pieces x 18 rows) of pellets P, are stacked in five stages in a boat W of a corresponding size. (12 [pieces] x 20 [columns] x 5)
[row] = 1200 [pieces]) and (11 [pieces] x 18 [row] x 5 [row] =
Packed in boxes of 990 pieces. By the way, the outer diameter is approximately 10
The boxing capacity for columnar pellets P with a length of approximately 15 mm was increased to approximately 240 pieces/min.

Furthermore, the device of this embodiment is equipped with a temporary stop switch and an emergency stop switch, so that it can be used in the event of an abnormal situation.

[Effects of the invention] As explained above, according to the continuous boxing device for molded bodies according to this invention, after the molded bodies are once arranged on the alignment plate, the molded bodies in the aligned form are vacuum-adsorbed all at once. Because the mechanism automatically packs boxes without applying impact force, it can automatically pack molded objects that are easily damaged by impact force or slippage, such as pellets in the field of powder metallurgy, without causing damage. In addition, a large number of compacts can be efficiently stored in a storage box for compacts such as a sintered boat, and the packing operation efficiency is extremely high.Also, the mechanism of the alignment operation section 3 has a relatively simple structure. There are few breakdowns and easy maintenance.
Furthermore, since the mechanism allows for easy adjustment even if the diameter and height of the molded bodies are slightly different, alignment is smooth, resulting in good alignment and good operability.
Since the molded object guide section is composed of a pusher plate and a guide groove, the molded objects are arranged in an aligned state when carried into the molded object guide section, and are moved by the pusher plate, so that the aligned state can be maintained. While holding it, it is sequentially moved to the alignment board,
Arranged in a matrix. It has the following effects.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention, with Fig. 1 being a front view, Fig. 2 being a schematic configuration diagram, Fig. 3 being an enlarged plan view of the alignment operation section, and Fig. 4 being an enlarged front view of the moving mechanism part. , Fig. 5 is a sectional view taken along the - line in Fig. 4, Fig. 6 is an enlarged explanatory view of the elevating mechanism section, Fig. 7 is a sectional view taken along the - line in Fig. 6, and Fig. 8 is a sectional view of the elevating frame. FIG. 3 is a schematic explanatory diagram of a position detection mechanism section. DESCRIPTION OF SYMBOLS 1... Device main body, 2... Alignment plate, 3... Alignment operation part, 8... Guide groove, 9... Guide part, 14...
... Lifting guide plate, 15 ... Pusher plate, 20 ... First sensor (position detection sensor), 24 ... Alignment detection switch (position detection sensor), 26 ... Adjustment screw (adjustment member), 27 ...
Vacuum suction mechanism, 41...Movement mechanism, 48...Transportation mechanism, 55...Elevating mechanism section.

Claims (1)

[Claims for Utility Model Registration] A horizontal alignment plate provided on the main body of the apparatus, and a columnar molded body in an upright state provided on substantially the same plane as the upper surface of the alignment plate and communicated with a molded body supply chute. a pusher plate for pushing out a predetermined number of compacts introduced into the guide section onto the alignment plate in an upright state; A carrying mechanism for carrying the storage box to a predetermined boxing work position, and a suction hole that is movably provided in the main body of the apparatus and that matches the upper surface of each of the predetermined number of compacts arranged on the alignment plate are formed on the lower surface. a vacuum suction mechanism capable of vacuum suctioning and releasing the suction of the molded bodies from above at once, and reciprocating the vacuum suction mechanism between the alignment plate and the inside of the molded body storage box at the boxing work position. A moving mechanism, which is provided in the apparatus main body and is capable of moving up and down a molded object storage box at the packaging work position, and is configured to increase the height of the molded objects each time the molded objects are stacked one by one in the molded object storage box. comprising: an elevating mechanism section that lowers the molded body storage box in degrees; and a carry-out mechanism provided in the apparatus main body that transports the molded body storage box from the boxing work position; adjusts the retreating position of the pusher plate and a guide groove formed by a pusher plate that can move forward and backward with respect to the alignment plate and an elevating guide plate that is attached to a position opposite to the pusher plate so as to be able to move up and down; A series of molded bodies, characterized in that the guide groove and the alignment plate are provided with position detection sensors whose positions can be adjusted to detect when the molded bodies have reached a predetermined position. boxing equipment.