JP2019034314A - Mold separation method and mold separation unit - Google Patents

Abstract

To provide a mold separation method that achieves fall prevention by detecting a the state of hanging in midair.SOLUTION: In a mold separation method of the present invention, a mold reversing gear for mounting a male mold and a loading device for being loaded with a female mold are relatively separated from each other to separate the coupled male and female molds from each other. A detector detects that the female mold is lifted from the loading device. Thus, the above relative separation is stopped.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a mold separation method and a mold separation apparatus.

  As this type of mold separating apparatus, those described in Patent Document 1 (Japanese Patent Laid-Open No. 8-229617) and Patent Document 2 (Japanese Patent Laid-Open No. 2001-129695) are known.

  In these conventional ones, the upper mold and the lower mold are separated by relative separation between the mold reversing device for attaching the upper mold and the mounting apparatus for placing the lower mold. .

JP-A-8-229617 JP 2001-129695 A

  The pair of upper and lower molds are coupled by fitting the guide post and the guide bush. Therefore, when the upper mold and the lower mold are separated, the shaft centers of the guide post and the guide bush must be matched to separate them. However, in the conventional mold separating apparatus, the guide post and the guide bush may stick and cannot be removed. In such an inseparable situation, if the mold reversing device and the mounting device continue to be separated from each other, the lower mold is lifted from the mounting device and suspended in the air. was there.

  Therefore, an object of the present invention is to provide a mold separation method and a mold separation apparatus that detect the above-mentioned suspended state and prevent fall.

  In order to achieve the above object, the present invention has taken the following measures. That is, the mold separation method of the present invention separates the combined upper mold and lower mold by relative separation between the mold reversing device for attaching the upper mold and the mounting apparatus for placing the lower mold. In the mold separation method, the relative mold separation is stopped by detecting by the detection device that the lower mold is lifted from the mounting device.

  After the relative separation stop, it is preferable that the lower mold is fixed to the mounting device to perform the relative separation.

  A mold separating apparatus according to the present invention includes a mold reversing apparatus for reversing an upper mold, a placing apparatus for placing a lower mold, an upper mold attached to the mold reversing apparatus, and the placing apparatus described above. And a separation device that relatively separates the lower mold placed on the apparatus, and a detection device that detects that the lower mold floats from the placement apparatus.

  It is preferable that the detection device is configured by any one of an air sensor, a proximity switch, and a limit switch provided on the lower mold placement surface of the placement device.

  According to the present invention, it is possible to detect a suspended state during mold separation work and prevent the mold from falling.

It is process drawing of the metal mold | die separation method which concerns on embodiment of this invention, and is a figure which mounts a pair of upper and lower mold sets on a mounting apparatus. The figure which shows the process of inserting a mounting apparatus in a metal mold | die inversion apparatus. The figure which shows the process of raising a mounting part. The figure which shows the process of lowering a mounting part and isolate | separating a lower metal mold | die from an upper metal mold | die. The figure which shows the state which moved the mounting apparatus outward from the metal mold | die reverse apparatus, and reversed the upper metal mold | die. The figure which shows the state which cannot perform isolation | separation of a metal mold | die and the lower metal mold was suspended. The figure which shows the state which forcibly separates a lower metal mold | die. A perspective view of a metallic mold separation device. A front view of a metallic mold separation device. The top view of an air floating pad. FIG. 11 is a sectional view taken along line AA in FIG. 10. The B section enlarged view of FIG. The top view which shows the modification of an air floating pad. CC sectional view of FIG. It is process drawing of a metal mold | die coupling | bonding method, and is a figure which attaches an upper metal mold to a metal mold inversion apparatus, and attaches a lower metal mold to a mounting apparatus. The figure which shows the process of inserting a mounting apparatus in a metal mold | die inversion apparatus. The figure which shows the process of raising a lower metal mold | die. The figure which shows the process of combining an up-and-down metal mold | die. The figure which shows the state which carried out the combined upper and lower metal mold | die from the mold inversion apparatus.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 7 are process diagrams of a mold separating method.
In this mold separating method, the upper mold and the lower mold are separated by relative separation between a mold reversing device for attaching the upper mold and a placing apparatus for placing the lower mold. Then, the lower mold is lifted from the mounting device by a detection device, and the relative separation is stopped.

  In FIG. 1, the mold separating apparatus includes a mold reversing apparatus 1 and a placing apparatus 2. The mold reversing device 1 has a base portion 3 and a reversing portion 4 that is rotatably supported by the base portion 3. A mounting portion 6 for attaching the upper mold 5 to the reversing portion 4 is provided. This attachment part 6 is comprised with a magnet clamp, and adsorbs and fixes the back surface of the metal mold 5 detachably by magnetic force.

  The placement device 2 includes a carriage unit 7 and a placement unit 8 provided on the carriage unit 7. A separation device 9 is provided between the carriage unit 7 and the placement unit 8, and the separation unit 9 allows the placement unit 8 to move up and down with respect to the carriage unit 7. This separation device 9 drives the screw jack 10 arrange | positioned at four corners by one drive motor, and moves the mounting part 8 in the up-down direction with high precision.

  A detector 11 is provided on the mounting portion 8. A lower mold 12 is placed on the detection device 11 and configured to detect the floating of the mold 12. The detection device 11 is configured by any one of an air sensor, a proximity switch, and a limit switch.

  In the method of separating the pair of upper and lower molds using the mold separating apparatus, first, the mounting apparatus 2 is positioned outside the mold reversing apparatus 1 and the pair of upper and lower mold sets 5 and 12 are moved by a crane or the like. Suspended and lowered onto the detection device 11 of the placement unit 8 of the placement device 2. The upper mold 5 and the lower mold 12 are coupled by fitting a guide bush 13 and a guide post 14.

  As shown in FIG. 2, the mounting device 2 is moved into the mold reversing device 1 so that the mold sets 5 and 12 face below the attachment portion 6 of the mold reversing device 1.

  As shown in FIG. 3, the mounting unit 8 is raised by the separation device 9 of the mounting device 2, and the back surface of the upper mold 5 is closely attached and fixed to the mounting surface of the mounting unit 6. A limit switch 11A is shown as the detection device 11.

  As shown in FIG. 4, the placing unit 8 is lowered by the separation device 9. Normally, the mounting portion 6 and the mounting portion 8 are parallel, and the mounting portion 8 descends in parallel, so that the guide bush 13 and the guide post 14 of the upper and lower molds 5 and 12 are detached without sticking. The upper mold 5 and the lower mold 12 are separated.

  As shown in FIG. 5, when the upper and lower molds 5 and 12 are separated, the mounting apparatus 2 moves to the outside of the mold reversing apparatus 1. The reversing unit 4 of the mold reversing apparatus 1 is reversed by 180 degrees, and stops at a position where the mating surface of the upper mold 5 faces upward. The upper mold 5 and the lower mold 12 with the mating surfaces facing upward are transported to a repair site or the like by a crane or the like, and repair and inspection of the mold is performed.

  FIG. 6 shows a state in which the guide bush 13 and the guide post 14 are stuck and cannot be detached during the separation operation from FIG. 3 to FIG. That is, for some reason, the shaft centers of the guide bush 13 and the guide post 14 are deviated, the moving direction of the mounting portion 8 is deviated from the axis, and the guide bush 13 and the guide post 14 are twisted and cannot be separated. . When the lowering of the mounting unit 8 is continued in this state, a gap is generated between the bottom surface of the lower mold 12 and the mounting surface of the detecting device 11 of the mounting unit 8, and the lower mold 12 is suspended.

Therefore, in this embodiment, the detection device 11 detects the gap and stops the lowering operation by the separation device 9.
And the operation | movement which raises the mounting part 8 by the separating apparatus 9 and descends again is repeated. By repeating such ascending / descending operations, the stick state is released and the upper and lower molds 5 and 12 are separated.

  FIG. 7 is a diagram illustrating forced separation when the stick state is not released and separation is not possible even when the above vertical movement is repeated.

  The lower mold 12 and the mounting portion 8 are fixed by a first fixing device 15 (for example, a bolt clamp). Further, the carriage unit 7 and the floor surface are fixed by a second fixing device 16 (for example, a hydraulic clamp). Then, the placing unit 9 is lowered by the separating device 9 to forcibly separate the lower mold from the upper mold.

  8 and 9 are detailed views of the mold separating apparatus.

  The mold separating apparatus includes a mold reversing device 1 and a placing device 2. The mold reversing device 1 has a base portion 3 and a reversing portion 4 that is rotatably supported by the base portion 3. A mounting portion 6 for attaching the upper mold 5 to the reversing portion 4 is provided.

  The reversing unit 4 has a pair of left and right rotating bodies 17 having an arcuate outer peripheral surface. A mounting portion 6 is provided between the pair of left and right rotating bodies 17. The base 3 has a pair of left and right frames 18, and this frame 18 stands on a base plate (not shown). The frame 18 is provided with a support portion 19 that supports the outer peripheral surface of the rotating body 17 so as to float. The support portion 19 is composed of an idle roller provided on the frame 18.

  The mounting portion 6 is configured by a rectangular magnet plate in a plan view that can attract the back surface of the upper mold 5 with a magnetic force. Rotating bodies 17 are provided at both ends of the attachment portion 6. Reinforcing ribs 20 are provided on the back surface of the attachment portion 66 to prevent the attachment portion 6 from being bent.

  The base 3 includes a rotation driving unit 21 that rotates the rotating body 17. The drive unit 21 includes a motor 22 provided on the frame 18 and a sprocket 23 provided on the output shaft via a reduction gear connected to the motor 22. A driven tooth 24 that meshes with the sprocket 23 is provided on a side surface of the rotating body 17. The driven tooth 24 is constituted by a pin 26 provided between a pair of discs 25 provided on the side surface of the rotating body 17.

  The placement device 2 includes a carriage unit 7 and a placement unit 8 provided on the carriage unit 7. A separation device 9 is provided between the carriage unit 7 and the placement unit 8, and the separation unit 9 allows the placement unit 8 to move up and down with respect to the carriage unit 7. This separation device 9 drives the screw jack 10 arrange | positioned at four corners with the one drive motor 27, and moves the mounting part 8 to an up-down direction parallel with high precision.

  The carriage unit 7 has a pair of front and rear wheels 29 that run on a pair of left and right rails 28, and one wheel 29 is a drive wheel by a motor 30. One of the left and right wheels 29 is a flanged wheel.

  Guide bushes 31 are provided on the left and right sides of the carriage unit 7, and the mounting unit 8 is provided with guide posts 32 that are slidably inserted into the guide bushes 31 to guide the vertical movement of the mounting unit 8. Yes.

  A detector 11 is provided on the mounting portion 8. A mold 12 is placed on the detection device 11 and configured to detect the floating of the mold 12. The detection device 11 is constituted by an air sensor. The air sensor has a plurality of blocks 33 arranged on the mounting portion 8, and an air ejection hole 34 is formed on the upper surface of the block 33, and an air pipe (communication to the air ejection hole 34) is connected to the block 33 ( (Not shown) is connected. The bottom surface of the mold 12 is placed on the top surface of the block 33 so as to block the air ejection holes 34. A detection unit (not shown) for detecting the pressure of the supply air is provided in the block 33 or in the middle of the air piping. When the bottom surface of the placed mold 12 is separated from the block 33 and a gap is formed, air is leaked from the air ejection hole 34, and the air leak is detected by the detection unit. A detection signal of this sensor is configured to stop driving of the motor 27 of the separation device 9 via a control device (not shown).

  The detection device 11 of the present invention is not limited to the air sensor, and may be any device that can detect that the mold 12 is lifted from the mounting portion 8 such as a proximity switch or a limit switch.

  In FIG. 10 and subsequent figures, the detection device 11 is provided on the air floating pad 35.

  As shown in FIGS. 10 to 12, the air floating pad 35 includes a substrate 36 fixed to the mounting portion 8, and a movable surface that floats on the substrate 36 with air pressure and moves freely in the XY plane. And a plate 37. A handle 38 operated by an operator is provided on the side surface of the movable plate 37.

  The upper surface of the substrate 36 is formed as a flat surface. A concave portion 39 is formed on the lower surface side of the movable plate 37, and the concave portion 39 serves as a compressed air reservoir. A labyrinth seal 40 is formed on the outer peripheral side of the air reservoir 39 to prevent leakage of compressed air in the air reservoir 39. An air passage 41 communicating with an air reservoir 39 is formed in the movable plate 37, and the air passage 41 is connected to a pressurized air source.

  When the pressurized air from the pressurized air source is supplied to the air reservoir 39, the movable plate 37 floats from the substrate 36 and can move freely in the XY plane.

  At the four corners of the upper surface of the movable plate 37, detection devices 11 for detecting the lifting of the lower mold 12 are provided.

  The detection device 11 includes a block 33 provided on the upper surface of the movable plate 37. The upper surface of the block 33 is formed on a flat surface, and the lower mold 12 is placed on the flat surface. An air ejection hole 34 is formed on the upper surface of the block 33, and when the lower surface of the lower mold 12 closes the air ejection hole 34, it is detected that the lower mold 12 has floated from the block 33.

  FIG. 13 and FIG. 14 show a modification of the air floating pad. Six movable plates 37 are provided on the substrate 36, an air reservoir 39 is provided on each movable plate 37, and each air reservoir 39 is provided. Pressurized air is supplied to the. Of the movable plate 37, air ejection holes 34 of the detection device 11 are formed on the upper surface of the movable plate 37 disposed at the four corners.

  What installed the air floating pad 35 which provided the detection apparatus 11 of the said structure in the mounting part 8 can also be used as a metal mold | die separation apparatus.

  Further, these air floating pads 35 are used as a die coupling device as shown in FIGS.

  In FIG. 15, of the pair of upper and lower molds, the lower mold 12 is suspended by a crane or the like with the mating surface facing upward, and is carried onto the mounting apparatus 2 and provided on the mounting apparatus 2. It is lowered onto the movable plate 37 of the air floating pad 35.

  The upper mold 5 is also suspended by a crane or the like with the mating surface facing upward, and is lowered to the mounting portion 6 of the mold reversing device 1, and the rear surface of the mold is attracted and fixed to the magnet clamp. The reversing part 4 of the mold reversing device 1 is rotated 180 degrees so that the mating surface of the upper mold 5 fixed to the mounting part 6 faces downward.

  As shown in FIG. 16, the lower mold 12 on the mounting device 2 is inserted below the upper mold 5 by the movement of the carriage unit 7.

  As shown in FIG. 17, the lower mold 12 is raised by the separation device 9 of the mounting apparatus 2 to approach the upper mold 5. When the guide post 14 of the lower mold 12 approaches the guide bush 13 of the upper mold 5, the ascending operation is switched from continuous ascent to an inching operation and enters the next centering process.

  In the centering step, pressurized air is supplied between the substrate 36 of the air floating pad 35 and the movable plate 37 to float the movable plate 37. Visually, the movable plate 37 is manually moved in the XY plane so that the axis of the guide bush 13 of the upper mold 5 and the axis of the guide post 14 of the lower mold 12 coincide. Then, the guide post 14 is inserted into the guide bush 13 while performing inching and centering.

  As shown in FIG. 18, when the centering is completed, the lower mold 12 is raised by the separating device 9 to complete the coupling of the upper and lower molds 5 and 12. After the coupling is completed, the attracting force of the magnet clamp that is the attachment portion 6 is released, and the upper mold 5 and the attachment portion 6 are fixed. The upper and lower mold sets 5, 12 are lowered by the separating device 9 of the mounting device 2,

  As shown in FIG. 19, thereafter, the upper and lower mold sets on the mounting apparatus 2 are carried out of the mold reversing apparatus 1, transported to a press machine by a crane or the like, and incorporated into the press machine to perform a mold try operation. Is done. In the case of a newly created mold, the separation and insertion of the mold is repeated 10 times or more, and finished while matching the teeth.

  From the above description, the air floating pad 35 provided with the detection device 11 can be used as a mold separating apparatus or a mold coupling apparatus.

  The form of the Example disclosed this time is an illustration in all points, and is not restrictive. The scope of the present invention is defined not by the above description but by the scope of the claims, and includes all modifications within the meaning and scope equivalent to the scope of the claims.

  For example, the present invention can also be applied to a mold reversing device of the type described in Patent Document 2 (Japanese Patent Laid-Open No. 2001-129695). In this case, the separation device is provided on the mold reversing device side.

DESCRIPTION OF SYMBOLS 1 Mold inversion apparatus 2 Mounting apparatus 3 Base part 4 Inversion part 5 Mold 6 Mounting part 7 Carriage part 8 Mounting part 9 Separation apparatus 10 Screw jack 11 Detection apparatus 11A Limit switch 12 Lower mold 13 Guide bush 14 Guide post 15 First fixing device 16 Second fixing device 17 Rotating body 18 Frame 19 Bearing portion 20 Reinforcement rib 21 Drive portion 22 Motor 23 Sprocket 24 Driven tooth 25 Disc 26 Pin 27 Motor 28 Rail 29 Wheel 30 Motor 31 Guide bush 32 Guide post 33 Block 34 Air ejection hole 35 Air floating pad 36 Substrate 37 Movable plate 38 Handle 39 Air reservoir 40 Labyrinth seal 41 Air passage

Claims (5)

In the mold separation method for separating the combined upper mold and lower mold by relative separation between the mold reversing apparatus for mounting the upper mold and the mounting apparatus for mounting the lower mold,
A mold separation method in which the lower mold is lifted off the mounting device by a detection device to stop the relative separation.   The mold separation method according to claim 1, wherein after the relative separation stop, the lower mold is fixed to the mounting device to perform the relative separation.   The mold separation method according to claim 1, wherein the detection device is configured by any one of an air sensor, a proximity switch, and a limit switch provided on a lower mold placement surface of the placement device. A mold reversing device for reversing the upper mold;
A mounting device for mounting the lower mold;
A separation device that relatively separates the upper die attached to the die reversing device and the lower die placed on the placing device;
A detection device for detecting that the lower mold is lifted from the placement device;
A mold separating apparatus.   The mold separating apparatus according to claim 4, wherein the detection device is configured by any one of an air sensor, a proximity switch, and a limit switch provided on a lower mold placing surface of the placing apparatus.