JP4711198B2 - Mold reversal transfer equipment - Google Patents

Description

  The present invention relates to a mold reversal transfer apparatus. In particular, the present invention relates to a mold reversal transfer apparatus that reverses a mold containing a casting material contained in a box-type pallet up and down by 180 ° without damaging with a dent caused by dropping at the time of reversal.

In the casting line, after pouring and removing the mold from the casting frame, in order to prevent dents in the casting material, the material is turned 180 ° upside down to convey and transfer the pouring gate and lifting side to the bottom. There is a request to change. However, there is no device that is compact and can easily prevent dents during reversal.
Inversion devices are used in various lines such as food lines. There are many devices for reversing molds, metal frames, cast frames, etc. in the casting line. One conventional reversing machine structure requires a space in the horizontal direction from the line before reversal to the line after reversal. In the casting frame reversing device of the casting apparatus of Patent Document 1, the reversing is performed by moving from the reversing machine line to another line in the horizontal direction. In this method, the casting frame is reversed and the product inside is taken out, and this may cause a dent by dropping. Further, the reversing mechanism is structured to be reversed by lifting the casting frame in the vertical direction, and requires a lot of space in the vertical direction.
Examples of the apparatus for inverting the mold include the mold inverting apparatus and the mold manufacturing method disclosed in Patent Document 2. When reversing the mold using this mechanism, the mold in various directions flows on the pallet on the actual line, and the complex shape, mold size, and weight are various. ,very difficult.
In addition, the inversion transfer device for the cast product of Patent Document 3, which has been proposed so far, inverts the product, which is the inversion of a product cast symmetrically, for example, a cylinder block. It is limited to. Also, the inverted product is only rotated 90 °.

Japanese Examined Patent Publication No. 6-69599, FIGS. 1 and 2 JP 2004-90061 A Japanese Utility Model Publication No. 6-63523

  The present invention allows a mold having a relatively large weight in a casting line and various shapes and sizes to be quickly reversed 180 degrees without damaging the mold by impact such as dropping, downsizing the apparatus, and casting line. An object of the present invention is to provide a mold reversal transfer apparatus in a casting line that can save space in the layout of the above.

The mold that has been framed in the casting line is placed on a box-type pallet having a bowl-shaped member that protrudes from the side surface parallel to the conveyance direction and is formed in parallel to the conveyance direction, and is conveyed together with the box-type pallet. A mold reversal transfer device used in a reversing station for reversing and transporting to a sand breaking line, a pair of reversing rings facing each other along the transport direction, connecting the reversing rings to each other and carrying them into the reversing ring is and a pair of roller frame to have a roller portion at a position sandwiching holding the flange-shaped member from above and below of the box pallet has been, supporting the box-pallet comprising a pair of ring support roller for supporting said inversion ring at the bottom, respectively A reversing mechanism for reversing, a reversing drive mechanism for rotating the reversing mechanism forward and reverse, and a discharge for guiding and discharging the mold from the box-type pallet during reversing. A discharge mechanism including a chute unit and a discharge drive unit which is attached to one outer side of the roller frame and drives the discharge chute unit to open and close above the opening of the box-type pallet; and the reverse drive mechanism On the basis of a signal from the pallet detection means, a control device for controlling the forward / reverse rotation operation of the paper and the opening / closing operation of the discharge drive unit, a pallet detection means for detecting that the box-type pallet has come into the reversing mechanism, A first detecting means for detecting that the discharge chute is closed, the reversing mechanism is rotated, the box-type pallet is turned upside down and reaches a horizontal state, and the discharge chute is opened, And a second detecting means for detecting that the box-type pallet is turned upside down and reaches its original position after the reversing mechanism is rotated in reverse. Transition mounting apparatus.

  According to the present invention, by placing a mold on a box-type pallet and reversing it, the mold can be reversed and transferred without being affected by the shape and size, and the hitting at the time of reversal is possible. An effect of reducing defects due to the marks can be obtained.

  Further, since the mold is reversed by the rotation of the apparatus and transferred in the vertical direction, the apparatus can be miniaturized, and space can be saved in the layout of the casting line.

Hereinafter, the mold reversal transfer apparatus of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a cutaway front view of a mold reversal transfer apparatus according to the present invention. FIG. 2 is a side view of the mold reversal transfer apparatus according to the present invention as viewed from the left side of FIG. FIG. 3 is a cross-sectional view taken along the line AA in FIG. FIG. 3 also shows an apparatus that omits the discharge chute and the mold and is involved in carrying in and out the mold.
4A, 4B, and 4C are three views of the discharge mechanism used in the present invention.
The mold reversal transfer apparatus according to the first embodiment of the present invention is configured such that, in a casting line, after casting, the frame W is removed, and the mold W in a state where the pouring gate protrudes on the upper surface protrudes on the side parallel to the conveying direction and is conveyed. Placed on the box-type pallet 1 having the bowl-shaped member 11 formed in parallel to the direction D and transported on the roller conveyor 7 in the direction D, the mold W is reversed together with the box-type pallet 1, After the mold W is transferred to the table Z, it is used in a reversing station for carrying it out to the next sand removal line.

The reversing mechanism 2 includes a pair of reversing rings 21 that face each other along the conveying direction;

A pair of roller frame 23 to have the roller 22 in a position to hold sandwich the flange-like member 11 of the inversion ring 21 are connected to each other and said inversion ring said box-type is loaded into the 21 pallet 1 from above and below, the support On the frame S, the reversing ring 21 is composed of a pair of ring support rollers 24 that support the reversing ring 21 at their lower portions. Further, the reversing mechanism 2 supports the box-type pallet 1 having the protrusions 6 by the roller portion 22 and rotates forward and backward.

  The reversing drive mechanism 3 rotates the reversing ring 21 of the reversing mechanism 3 through the roller chain 32 by the power from the servo motor 31 above the support frame S. Further, a large upward force is applied to the reversing ring 21 when the reversing drive mechanism 3 is activated. The reversing ring 21 is lifted from the ring support roller 24 by the force, and a gap is formed on the back side of the servo motor 31 of the support frame S so as not to contact the reversing ring 21 so that it does not come off. The stop stopper U is arranged.

  The roller conveyor 7 includes a roller conveyor frame 71 and a roller unit 22. The roller portion 22 and the roller portion 22 in the roller frame 23 are the same.

  The discharge mechanism 4 is disposed on one outer side (opposite to the side surface on which the roller portion 22 is provided) of the discharge chute portion 41 that guides and discharges the mold W from the box-type pallet 1 during reversal and the roller frame 23. In addition to being attached, the discharge chute portion 41 includes a discharge drive portion 42 that drives the upper portion of the opening K of the box-type pallet 1 to be openable and closable.

  The discharge chute 41 is shaped to cover the entire opening K of the box pallet. Further, as shown in FIG. 4, the discharge driving unit 42 opens and closes the shaft 44 held by a bearing 43 attached to the roller frame 23 as a rotation center.

  A control device (not shown) controls forward / reverse rotation operation of the reversing mechanism 2 by the reversing drive mechanism 3 and opening / closing operation of the discharge chute unit 41 by the discharge drive unit 42.

  Pallet detection means (not shown) detects that the box-type pallet 1 is sent from the direction D into the reversing mechanism 2 and sends a signal to the control device.

  FIG. 5 is a view of FIG. 2 as viewed from the left side, and shows the positional relationship between the reversing mechanism 2 and the first detection means 51, the second detection means 52, the third detection means 53, and the ate 6. The ate 6 is attached to the reversing ring 21, and the first, second, and third detecting means 51, 52, and 53 detect the angle and position of the reversing ring 21 by detecting the ate 6. ing.

  As shown in FIG. 5, the first detection means 51 is configured to detect the discharge chute portion based on a signal from the pallet detection means when the box-type pallet 1 flowing through the roller conveyor 7 comes into the reversing mechanism 2. 41 closes (contacts the opening K of the box-type pallet), the reversing mechanism 2 is rotated, and the box-type pallet 1 is turned upside down around the reversing mechanism rotation center R to reach a horizontal state. Detect that.

  The second detecting means 52 opens the discharge chute part 41 (away from the opening K of the box-type pallet) and discharges the mold W, and then the reversing mechanism 2 is rotated in the reverse direction C, and the box It is detected that the mold pallet 1 is turned upside down around the reversing mechanism rotation center R and has reached the original position.

  The third detection means 53 detects that the reversing mechanism 2 has reached a state of further rotation than the horizontal state.

  In the present invention, the first, second and third detecting means 51, 52 and 53 use proximity switches to detect the position of the ate 6, but can detect the angle and position of the reversing mechanism 2. The present invention is not limited to this as long as it is present.

Hereinafter, operations according to these configurations will be described with reference to the drawings.
6-8, the said inversion mechanism 2 is abbreviate | omitted for the simplification of drawing.
As shown in FIG. 2, the box-type pallet 1 containing the mold W to be reversed flows in the direction D on the line of the roller conveyor 2.
FIGS. 6A and 6B show a state where the discharge chute portion 41 is closed and then the reversing mechanism 2 shown in FIG. In addition, the code | symbol Z in a figure is a table. At this time, in the box-type pallet 1, the mold W is in a state in which the gate Y is directed in the horizontal direction.
(1) When the box-type pallet 1 comes into the reversing mechanism 2, the pallet detection means detects it, and based on a signal from the pallet detection means, operates the discharge drive part 42 and the discharge chute part 41. Closes the opening K of the box-type pallet.
(2) When the discharge chute 41 closes the opening K of the box-type pallet, in the closed state, the reverse drive mechanism 3 is operated to rotate the reverse mechanism 2 forward.

6 (c) and 6 (d) show a state in which the reversing mechanism 2 is rotated forward about 180 ° and about 210 °. In the state of about 180 °, the mold W inside the box-type pallet 1 is in an unstable state. Therefore, the position and posture of the mold W are stabilized by rotating the mold W to about 210 ° and bringing the mold W inside the box-type pallet 1 into contact with the side surface of the box-type pallet 1.
(3) The third detecting means 53 detects that the reversing mechanism 2 has been turned upside down by the normal rotation and has further rotated from the horizontal state, and the reversing mechanism is stopped. Is operated to reversely rotate the reversing mechanism 2.

FIGS. 7A and 7B show a state in which the reversing mechanism 2 is reversely rotated about 30 ° so that the box-type pallet 1 is in a horizontal state, and the discharge chute portion 41 starts an opening operation. .
(4) After detecting that the reversing mechanism 2 is reversely rotated in the direction C and has reached the horizontal state by the first detecting means 51, the rotation of the reversing driving mechanism 3 is stopped to stop the rotation in the middle of reversing. To do.
(5) After the reversal drive mechanism 3 stops in the middle of reversal, the discharge drive part 42 is operated and the discharge chute part 41 opens the opening K of the box-type pallet.

FIGS. 7C and 7D show a state in which the discharge chute portion 41 is fully opened and a state in which the reversing mechanism 2 starts reverse rotation.
(6) When the discharge chute 41 opens the opening K of the box-type pallet, the reverse drive mechanism 3 is operated to reversely rotate the reverse mechanism 2.
At this time, the mold W starts to slide down on the discharge chute portion 41. After the discharge chute portion 41 is fully opened, the reversing mechanism 2 starts reverse rotation, and the mold W gradually slides down.

FIGS. 8A and 8B show a state where the reversing mechanism 2 rotates in the reverse direction while the mold W is in contact with the ground. FIGS. 8C and 8D show a state where the reversal transfer of the mold W is completed in a state where the reversing mechanism 2 further rotates in the reverse direction.
(7) After detecting that the reversing mechanism 2 has reached the original position by the second detecting means 52, the reverse rotation of the reversing mechanism 2 is stopped by stopping the operation of the reversing drive mechanism 3.
Then, the state returns to the state shown in FIG.
When the transfer of the mold W to the table Z is completed and the box-type pallet 1 is reversed, the unloading cylinder P shown in FIG. 3 expands in the direction E, and the mold W placed on the table Z is Extrude in direction F and carry out to next sand spreading line T. The sand spreading line T on which the carried out mold W is placed moves in the direction G toward the next process.

By repeating the operations (1) to (7), the products W that have entered the box-type pallet 1 can be reversed and transferred one after another.
Further, as a control unit for controlling the operations of (1) to (7), the forward rotation operation control unit of the reverse drive mechanism 3 includes (2) a normal rotation circuit, and the reverse rotation operation of the reverse drive mechanism 3 is performed. The control unit includes (3) a reverse rotation circuit, (4) a reverse rotation stop circuit, (6) a reverse rotation restart circuit, and (7) a reverse rotation stop circuit, and the closing operation control unit of the discharge driving unit 42 (1) comprises a closed circuit, and the opening operation control part of the discharge drive part 42 comprises (5) an open circuit.
The control unit is incorporated in a control device, thereby controlling forward / reverse rotation of the reversing mechanism 2 by the reversing drive mechanism 3 and opening / closing operation of the discharge chute unit 41 by the discharge drive unit 42.
With this configuration and operation, even if the posture and position of the mold W that has entered the box-type pallet 1 are unstable, the mold W can be reversed without a dent.

Next, a second embodiment according to the present invention will be described.
The second embodiment can be reversed and transferred from the first embodiment by omitting the third detection means 53. The operation will be described below.

Here, since the third detection means 53 is omitted as shown in FIG. 9, the operations corresponding to FIG. 6 (d) and FIG. 7 (a) are not performed. Operations (1) and (2) up to FIGS. 6 (a), (b), and (c) are the same.
Next to the operations (1) and (2), the operation is as follows.
(4a) After the first detecting means 51 detects that the reversing mechanism 2 has reached the horizontal state, the operation of the reversing driving mechanism 3 is stopped.
(5a) After the reverse rotation of the reverse drive mechanism 3 is stopped, the discharge drive part 42 is operated and the discharge chute part 41 opens the opening K of the box-type pallet.
Then, operations (6) and (7) are continued as in the first embodiment.

In the second embodiment, as the control unit that controls the operations of (1), (2), (4a), (5a), (6), and (7), the forward rotation operation control unit of the reversal drive mechanism is (2) The reverse rotation operation control unit of the reverse drive mechanism includes (6) a reverse rotation circuit and (7) a reverse rotation stop circuit, and includes a forward rotation circuit and (4a) a forward rotation stop circuit. The closing operation control unit comprises (1) a closed circuit, and the opening operation control unit of the discharge driving unit comprises (5a) an open circuit.
The control unit is incorporated in a control device, thereby controlling forward / reverse rotation of the reversing mechanism 2 by the reversing drive mechanism 3 and opening / closing operation of the discharge chute unit 41 by the discharge drive unit 42.

  In the first and second embodiments, the above operation can be reversed and transferred to the sand spreading line without any dents. Further, by performing desired and appropriate angle adjustments for various product inversions and sliding the products down, product inversions that prevent dents can be achieved.

It is a partially cutaway front view of the mold reversal transfer apparatus according to the present invention. It is the partially notched side view and top view of the mold reversal transfer equipment by the present invention. FIG. 3 is a cross-sectional view taken along the line AA in FIG. 2. (A) It is a top view of a discharge mechanism. (B) It is a front view of a discharge mechanism. (C) It is a side view of a discharge mechanism. FIG. 3 is a left side view of FIG. 2. (A) It is the figure showing the state which closed the discharge chute part. (B) It is the figure showing the state which the inversion mechanism rotated about 90 degrees forward. (C) It is a figure showing the state which the inversion mechanism rotated forward about 180 degrees. (D) It is the figure showing the state which the inversion mechanism rotated about 210 degrees forward. (A) It is the figure showing the state which reversely rotated the inversion mechanism about 30 degrees so that a box-type pallet might become a horizontal state. (B) It is a figure showing a mode that a discharge chute part starts opening operation. (C) It is the figure showing the state by which the discharge chute part was fully opened. (D) It is the figure showing the state which the inversion mechanism started reverse rotation. (A) It is the figure showing the state in which the inversion mechanism is reversely rotated in the state which the casting_mold | template contact | grounded. (B) It is the figure showing the state which the reversing | reversing mechanism rotated further reversely from Fig.8 (a). (C) It is the figure showing the state which the inversion mechanism rotated further reversely from FIG.8 (b). (D) It is the figure showing the state which the reverse transfer of the casting_mold | template was completed. It is a figure which shows the position of each detection means concerning Embodiment 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Box-type pallet 2 Inversion mechanism 3 Inversion drive mechanism 4 Discharge mechanism 6 Atte 7 Roller conveyor 11 ridge-shaped member 21 Inversion ring 22 Roller part 23 Roller frame 24 Ring support roller 31 Servo motor 32 Roller chain 41 Discharge chute part 42 Discharge drive part 43 Bearing 44 Shaft 51 First detecting means 52 Second detecting means 53 Third detecting means 71 Roller conveyor frame B Direction in which the reversing mechanism rotates in the forward direction C Direction in which the reversing mechanism rotates in the reverse direction D Progress of the box-type pallet on the roller conveyor Direction E Direction in which the unloading cylinder pushes the mold F Direction of unloading the mold that is turned upside down G Traveling direction of the sand spreading line on which the unloaded mold is placed K Box pallet opening P Unloading cylinder R Reversing mechanism rotation center S Support frame T Sand spreading line U Loss stop W Mold Y Spout Z Table

Claims (4)

The mold that has been framed in the casting line is placed on a box-type pallet having a bowl-shaped member that protrudes from the side surface parallel to the conveyance direction and is formed in parallel to the conveyance direction, and is conveyed together with the box-type pallet. A mold reversal transfer device used in a reversing station for reversing and carrying out to the sand spreading line,
A pair of the inversion ring facing in the transport direction, a pair of perforated roller unit in a position for holding sandwich the flange-like member of said inversion ring connected together and said inverting said box pallet which has been carried into the ring from the top and bottom A reversing mechanism for supporting and reversing the box-type pallet composed of a pair of ring support rollers for supporting the reversing ring at the lower part thereof, and
A reverse drive mechanism for rotating the reverse mechanism forward and reverse;
A discharge chute that guides and discharges the mold from the box-type pallet at the time of reversing, and is attached to one outside of the roller frame, and the discharge chute can be opened and closed above the opening of the box-type pallet. A discharge mechanism comprising a discharge drive unit to be driven;
A control device for controlling forward / reverse rotation operation of the reverse drive mechanism and opening / closing operation of the discharge drive unit;
Pallet detection means for detecting that the box-type pallet has come into the reversing mechanism;
First detection means for detecting that the discharge chute is closed based on a signal from the pallet detection means, the reversing mechanism is rotated, the box-type pallet is turned upside down, and reaches a horizontal state;
After the discharge chute part is opened and the mold is discharged, the reversing mechanism is reversely rotated, and the box-type pallet is turned upside down and includes second detection means for detecting that the original position has been reached. Mold reversal transfer equipment. In the control device,
The forward rotation operation control unit of the reverse drive mechanism is
When the discharge chute part closes the opening of the box-type pallet, a normal rotation circuit that operates the reverse drive mechanism to rotate the reverse mechanism forward,
A first rotation stop circuit that stops the operation of the reverse drive mechanism after the first detection means detects that the reverse mechanism has reached a horizontal state;
The reverse rotation operation control unit of the reverse drive mechanism is
A reverse rotation circuit that operates the reverse drive mechanism to reversely rotate the reverse mechanism when the discharge chute opens the opening of the box-type pallet;
After detecting that the reverse mechanism has reached the original position by the second detection means, and comprising a reverse rotation stop circuit for stopping the operation of the reverse drive mechanism,
The closing operation control unit of the discharge driving unit is
Based on a signal from the pallet detection means, the discharge drive unit is operated, and the discharge chute unit is a closed circuit that closes the opening of the box-type pallet,
The opening operation control unit of the discharge driving unit is
2. The mold reversing / transferring apparatus in a reversing station according to claim 1, wherein the reversing driving mechanism is operated to stop the forward rotation, and then the discharge driving part is operated to open the opening of the box-type pallet. . The mold reversal transfer apparatus according to claim 1, further comprising third detection means for detecting that the reversing mechanism has reached a further rotated state than the horizontal state. In the control device,
The forward rotation operation control unit of the reverse drive mechanism is
When the discharge chute part closes the opening of the box-type pallet, it comprises a forward rotation circuit that operates the reverse drive mechanism and forwardly rotates the reverse mechanism.
The reverse rotation operation control unit of the reverse drive mechanism is
The third detecting means detects that the reversing mechanism has been turned upside down by the forward rotation and has reached a state of further rotation from the horizontal state, and after the reversing mechanism is stopped , the reversing drive mechanism is operated to perform the reversing A reverse rotation circuit that reversely rotates the mechanism;
A reversing stop circuit for stopping the reversing drive mechanism after detecting by the first detecting means that the reversing mechanism is reversely rotated and reaches the horizontal state again;
A reverse rotation restart circuit that operates the reverse drive mechanism to reversely rotate the reverse mechanism when the discharge chute opens the opening of the box-type pallet;
After detecting that the reverse mechanism has reached the original position by the second detection means, and comprising a reverse rotation stop circuit for stopping the operation of the reverse drive mechanism,
The closing operation control unit of the discharge driving unit is
Based on a signal from the pallet detection means, the discharge drive unit is operated, and the discharge chute unit is a closed circuit that closes the opening of the box-type pallet,
The opening operation control unit of the discharge driving unit is
4. The mold reverse transfer apparatus according to claim 3, wherein the reverse drive mechanism comprises an open circuit that operates the discharge drive unit and opens the opening of the box-type pallet after the reverse drive mechanism stops in the middle of reverse.