JP5300637B2 - Work setting device and work setting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a novel apparatus and a novel method for arranging a work, which can arrange the work simply in a short time, while suppressing costs, and has wide applications. <P>SOLUTION: A mold arranging apparatus including a crane device 4 to suspend a mold D up and down movable near a platen 2 arranged nearly orthogonal to a base surface 1f and to arrange the mold D so that the back surface F<SB>2</SB>of the mold D is nearly in parallel with a side surface 2f of the platen by suspending the mold D with a lower-end surface F<SB>1</SB>of the mold D being inclined so as to recede from the side surface 2f of the platen. The mold D is equipped with a roller member 5 protruding from the lower-end surface F<SB>1</SB>of the mold D toward the base surface 1f at a position closer to the side of the platen 2 than the position directly under the center of gravity O<SB>M</SB>in a condition that the mold D is suspended. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention, for example, lowers a suspended work in the vicinity of a vertical wall provided so as to be substantially orthogonal to a reference surface, such as a mold change of an injection molding machine, and the side surface of the work is a vertical wall. It is related with the workpiece | work installation apparatus and the workpiece | work installation method which are installed so that it may become substantially parallel to the side surface.

  When the workpiece is suspended, it may be tilted. Even in such a state, as a technique for setting the workpiece so that the side surface of the workpiece is parallel to the side surface of the vertical wall, for example, a mold for an injection molding machine For the purpose of replacement, the fixed platen and the movable platen are each provided with shock absorbers with different settings.If the mold that is the workpiece is held by the shock absorber of one platen and falls to the other platen, the other platen In some cases, the workpiece is placed so that the side surface of the workpiece is parallel to the side surface of the vertical wall by holding the shock absorber so as to cause the inclination (see, for example, Patent Document 1).

JP 2005-7724 A

  However, according to the prior art, when a board-like member such as a mold is installed vertically, the workpiece repeatedly moves like a pendulum between a fixed platen and a movable platen. Positioning may be performed, and there is a problem that time and labor are required for the positioning work.

  Further, since the conventional technology performs positioning while moving between two platens like a pendulum, it may not be able to cope with a case where the vertical walls (platens) standing up from the reference plane are not paired.

  Furthermore, since the conventional technique uses a precision instrument such as a shock absorber, there is room for improvement in cost.

  An object of the present invention is to provide a new workpiece installation apparatus and workpiece installation method that can install a workpiece easily and in a short time while suppressing costs, and that has a wider application range. is there.

The present invention comprises crane means for suspending a work so that it can be raised and lowered in the vicinity of a vertical wall provided so as to be substantially orthogonal to the reference plane,
A workpiece installation device that suspends a workpiece in a state in which the lower end surface of the workpiece is tilted away from the side surface of the vertical wall, and sets the workpiece so that the side surface of the workpiece is substantially parallel to the side surface of the vertical wall. There,
The workpiece is provided with a roller member that protrudes from the lower end side of the workpiece toward the reference plane immediately below the center of gravity position in a state in which the workpiece is suspended or at a position closer to the vertical wall side than immediately below the center of gravity position. It is characterized by being.

  Examples of such roller members include those that are supported in a manner that they are immovable with respect to the workpiece, such as rollers and ball bearings of a roller conveyor. However, according to the present invention, the roller member is limited to this. It is not something.

  For example, a moving path in which the roller member can move while rotating can be formed on the workpiece. Examples of the movement path include a concave groove and a through hole that rotatably support a shaft portion protruding from the side surface of the roller member. In this case, the roller member can move while rotating along the movement path with respect to the workpiece.

  Moreover, according to this invention, a roller member can be provided so that removal is possible. As a means for realizing such detachment, for example, a roller holding member that holds the roller member rotatably and can be attached to and detached from the workpiece can be cited. Examples of the structure that can be attached to and detached from the workpiece include a fastening means such as a permanent magnet, an electromagnet capable of ON / OFF control, or a hook that can be manually operated, and a fastening means such as a bolt. It is done.

  Alternatively, means for attaching and detaching the roller member directly to the workpiece or the roller holding member can be provided. Examples of such means include, as described above, locking means represented by permanent magnets, electromagnets capable of ON / OFF control, and hooks capable of manual operation.

  Furthermore, according to the present invention, the roller member is made of a magnetic material, and a magnet for holding the roller member in the initial position can be provided on the workpiece or the roller holding member.

In the present invention, the suspended workpiece is lowered in the vicinity of the vertical wall provided so as to be substantially orthogonal to the reference plane, so that the side surface of the vertical wall and the side surface of the workpiece are substantially parallel. The method of installing
A roller member that protrudes from the lower end surface of the workpiece toward the reference surface is provided immediately below the center of gravity position in a state in which the workpiece is suspended, or at a position closer to the vertical wall side than immediately below the center of gravity position.
Suspend the work with the lower end of the work tilted away from the side of the vertical wall,
As the workpiece descends, the roller member comes into contact with the reference surface, and the workpiece is guided by the roller member so that the workpiece is brought close to the vertical wall and the both side surfaces thereof are substantially parallel to each other.

  In the present invention, “the side surface of the vertical wall and the side surface of the work are installed so as to be substantially parallel” means that the side surface of the vertical wall and the side surface of the work are respectively flat surfaces, It is not limited to be installed so that the entire side surface of the workpiece and the entire side surface of the workpiece are parallel to each other. For example, when unevenness or a curved surface is formed on the side surface of the vertical wall or the side surface of the workpiece, the installation includes setting at least a part of the side surface of the vertical wall and the side surface of the workpiece to be substantially parallel.

  According to the present invention, since the workpiece stands only by lowering the workpiece, the side surface of the workpiece is parallel to the side surface of the vertical wall even in the situation where the workpiece is installed near one vertical wall. The workpiece can be installed. For this reason, it is not necessary to use precision equipment, such as a shock absorber.

  Therefore, according to the present invention, it is possible to provide a workpiece installation method and workpiece installation method that can easily and quickly install a workpiece while suppressing costs and that has a wider application range. .

  In particular, if the roller member is directly provided on the workpiece, the workpiece can be installed more easily and in a short time by using the workpiece as it is.

  In addition, if the workpiece is provided with a moving path that allows the roller member to move while rotating, the roller member moves relative to the workpiece, so that the workpiece can be freely moved relative to the roller member even when the roller member is attached to the workpiece. By moving with a degree, the roller member can be positioned so that the workpiece stands in a relatively stable state. In particular, if a concave groove or a through-hole that rotatably supports the shaft portion protruding from the side surface of the roller member is employed as the moving path, the configuration for holding the roller member in a slidable manner can be simplified, thereby further improving the structure. Cost reduction is realized.

  Alternatively, if the roller member is pivotally supported on the work so as not to move, the roller member does not move relative to the work, so that the work can be raised relatively easily. As a result, the workpiece can be installed more easily and in a short time.

  Further, if the roller member can be attached to and detached from the workpiece via the roller holding member, it can be adapted to various workpieces. If such a roller holding member is provided, the work can be directly installed by removing the work after the work is installed.

  Or even if the means for attaching / detaching a roller member directly to a workpiece | work is provided, a workpiece | work can be directly installed by removing a roller member after installation of a workpiece | work.

  Further, if the roller member is made of a magnetic material and a magnet is provided on the workpiece or the roller holding member, the roller member is held at the initial position by the magnet, so that the setting for the initial position of the roller member can be performed. That is, since the setting of the roller member relative to the initial position becomes easy, the workpiece can be positioned more easily and in a short time.

(a), (b) is a mold installation apparatus according to an embodiment of the present invention, a side view schematically showing a stage before a mold is set on a platen in an injection molding machine, and a book It is a principal part perspective view which shows the roller member periphery in the metal mold | die according to invention. It is an apparatus of the same form, Comprising: It is a side view which shows typically the positional relationship of the gravity center of a hanging metal mold | die, and a roller member. It is an apparatus of the same form, Comprising: It is a side view which shows typically the process of pressing a metal mold | die to the alignment member side in the state which contacted the alignment member provided in the platen in a molding machine. FIG. 10 is a side view schematically showing a process of removing the roller holding member from a state where the mold is pulled up while being pressed toward the alignment member side, in the same form. It is an apparatus of the same form, Comprising: It is a side view which shows typically the process of mounting a metal mold | die on a supporting member, pressing a metal mold | die to the alignment member side. (a), (b) is a mold installation apparatus according to another embodiment of the present invention, a side view schematically showing a stage before the mold is set on the platen in the injection molding machine; It is a principal part perspective view which shows the roller member periphery in the metal mold | die according to this invention. It is an apparatus of the same form, Comprising: It is a side view which shows typically the process of pressing a metal mold | die to the alignment member side in the state which contacted the alignment member provided in the platen in a molding machine.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

  This embodiment is a mold installation device used when exchanging molds of an injection molding machine.

  In the drawings, reference numeral 1 denotes a base disposed in an injection molding machine. The upper end surface 1f of the base 1 constitutes a horizontal grounding surface (reference surface) on which a mold D as a workpiece is seated. A platen 2 stands up from the base 1, and a side surface (hereinafter “platen side surface”) 2 f of the platen 2 is configured as a plane substantially perpendicular to the upper end surface (hereinafter “reference surface”) 1 f of the base 1. ing.

The mold D is a board-like member having a flat lower end surface F ₁ that can be seated on the reference surface 1 f, and a back surface (side surface) F ₂ formed so as to be orthogonal to the lower end surface F _1. .

In contrast, the platen side 2f, parallel out member 3 the mold back F ₂ are in contact is provided. Each of the paralleling members 3 is set so that the front end surface 3f has an equal length L ₀ (see FIG. 3) from the platen side surface 2f. Thus, the die D, when contacting the back F ₂ on the distal end surface 3f, as shown in the figure, away from the platen side 2f distance L _0, the position near the platen side 2f, platen side Aligned parallel to 2f.

  A lateral groove extending in the width direction is formed on the platen side surface 2 f so as to be cut out from the side surface of the platen 2. From the notch portion of the horizontal groove, the paralleling member 3 is detachably fitted into the horizontal groove. Thereby, the paralleling member 3 can be attached or detached from the platen side surface 2f as needed.

That is, unlike the platen side 2f of the present embodiment, when the irregular surface of different widths to the back F ₂ of the mold D is formed, parallel out member as place the distal end surface 3f abuts avoid uneven 3 is arranged. Note that the paralleling member 3 may be employed even when the back surface F _{2 of the} mold D has a concavo-convex shape or a curved shape, as well as the back surface F ₂ is a surface parallel to the platen side surface ₂ f. it can.

Reference numeral 4 denotes crane means for suspending the mold D so that it can be raised and lowered so that the lower end face F _{1 of the} mold D is on the lower side.

  The crane means 4 has an arm 4a that can be swung and expanded and contracted, and a deformable linear member 4b typified by a wire or a chain hangs down from the distal end side of the arm 4a. The linear member 4b can be detachably fixed to the upper end side of the mold D by a locking means such as a hook. Thereby, the crane means 4 can suspend and hold | maintain the metal mold | die D so that raising / lowering is possible by drawing out and winding up the linear member 4b via the arm 4a, as shown to Fig.1 (a).

5 is a roller member that protrudes toward the reference surface 1f from the bottom F ₁ side of the mold D. The roller member 5 includes a cylindrical roller body 5a having a rolling surface, and a shaft portion 5b protruding from the side surface of the roller body 5a.

M is a roller holding member that holds the roller member 5 rotatably. The roller holding member M is detachably attached to the lower end face F ₁ of the mold D as shown in FIG. Further, the lower end surface F _M of the roller holding member M, as shown in FIG. 1 (b), recesses n extending along the lower end surface F _M is formed.

Further, as shown in FIG. 1B, each of the side surfaces F _n forming the recess n is directed from the back surface of the mold D (hereinafter referred to as “mold back surface”) F ₂ to the front surface (molding surface) F _3. The travel path M _s extends. The movement path M _s is formed as a through hole or a concave groove, as shown in FIG. Thus, the roller member 5, by inserting the shaft portion 5a in the moving path M _s, can move while rotating along a movement path M _s.

That is, in this embodiment, when the mold D is suspended with the roller holding member M attached, the roller member 5 moves to the mold back surface F ₂ side along the movement path M _s . For this reason, the roller member 5 adjusts the length of the mold rear surface F ₂ side end edge of the _two end edges of the moving path M _s , as shown in FIG. position close to the platen 2 side from just below the center of gravity O _M in suspended state, or, to a position immediately below the center of gravity O _M, toward the lower end surface F _M of the roller holding member M to the reference surface 1f Can be protruded.

An example of a structure that can be attached to and detached from the mold D includes a permanent magnet provided on the upper end surface of the roller holding member M and fixed to the lower end surface F ₁ of the mold M. In this case, if the roller holding member M is selected so as to generate a magnetic force that does not drop off from the lower end surface F _{1 of the} mold D due to its own weight, it can be detached from the mold D manually. Moreover, when using a magnet, if the electromagnet in which ON / OFF control is possible is selected, the attachment or detachment from the metal mold | die D becomes easy, and workability | operativity improves.

  Furthermore, as a configuration that enables attachment to and removal from the mold D, there is a locking means that can be manually operated. As the locking means, for example, a hook member that can be locked by being caught on the mold D can be cited. The unevenness of the mold D can be provided as a part of the locking means as well as the shape of the mold D itself. The hook member has an operation portion on the opposite side and is provided so as to be swingable with respect to the roller holding member M. Thereby, the detachment from the mold D can be performed by pushing down or pulling up the operation unit.

  Next, a method for installing the mold D on the base 1 so as to be substantially parallel to the platen 2 using the installation apparatus according to the present embodiment will be described.

First, as a first step, the die D is lifted using the crane means 4, and the roller holding member M is attached to the lower end face F ₁ of the die D. At this time, when the center of gravity O _{M of the} mold M moves, as shown in FIG. 1A, when the lower end surface F _{1 of the} mold D is tilted away from the platen side surface 2f, the roller member 5 becomes Due to its own weight, it moves to the mold rear surface F ₂ side along the movement path M _s . As a result, the roller member 5 is positioned with the initial position relative to the mold D as the initial position by simply attaching the roller holding member M to the mold D and lifting it up.

Next, as a second step, the mold D is lowered toward the reference plane 1 f using the crane means 4. When the mold D is lowered, as shown in FIG. 2, among the paralleling members 3 provided on the platen 2, the upper edge 3 p of the paralleling member 3 on the upper side and the back surface F _{2 of the} mold M are in contact with each other. At the same time, the roller member 5 comes into contact with the reference surface 1f.

At this time, the position of the rolling axial O _r of the roller member 5, as shown in the figure, be between the base 1 and the die D, from the platen side 2f apart by a dimension L _1, a mold D It is directly under a position separated by a dimension L ₂ closer to the platen 2 than the center of gravity O _M at the time of suspension, or directly below the center of gravity O _M.

Then, the upper edge 3p of the parallel projecting member 3 on the upper side serves as a fulcrum, and a part of its own weight of the mold M is applied to the roller member 5 as a horizontal component force, so that the roller member 5 moves along the reference surface 1f. While rolling toward the mold front surface F ₃ side, the mold D placed on the roller member 5 via the roller holding member M also moves toward the platen 2 side as the roller member 5 rolls. .

Thereby, as shown in FIG. 3, the mold D has the upper edge 3 p of the paralleling member 3 on the upper side as a fulcrum until it comes into contact with the front end surface 3 f of the paralleling member 3 on the lower side. When the metal mold rear surface F ₂ comes into contact with each of the front end surfaces 3 f of the paralleling member 3, the platen side surface 2 f is arranged in parallel.

In this embodiment, a support member (parallel member) 6 for placing the mold D is disposed on the reference surface 1f. The upper end face 6f of the support member 6 without detaching the roller holding member M, when installing the mold D is when is seated lower end surface F _M of the roller holding member M to the reference surface 1f, a mold M For example, the back surface F ₂ may be formed in a plane so that the back surface F ₂ is parallel to the platen 2, but in this embodiment, the roller holding member M is removed and the mold D is installed as in the conventional case. When the lower end surface F ₁ of the mold D is seated on the reference surface ₁ f, for example, a flat surface is formed so that the mold back surface F ₂ is parallel to the platen 2.

After the mold D is arranged in parallel to the platen 2, as shown in a broken line in FIG. 3, the pressing member 7 is installed on the reference surface 1f as a third step. The pressing member 7 has a side surface 7 f that presses the front surface F _{3 of the} mold D, and presses the mold D against the front end surface ₃ f of the paralleling member 3 as shown in FIG. 4.

  The presser member 7 can be detachably mounted on the reference surface 1f. In this embodiment, the support member 6 is placed on the reference surface 1f in advance. However, the support member 6 can be disposed together with the pressing member 7 in the third step. That is, the support member 6 can be placed on the reference surface 1f as a third step, as well as being placed on the reference surface 1f in advance.

Following this, as shown in FIG. 4, as shown in FIG. 4, after slightly lifting the mold D in the direction of the arrow D using the crane means 4, as shown by the broken line in FIG. As a process, the roller holding member M attached to the lower end surface F ₁ is removed from the lower end surface F _{1 of the} mold D.

After removing the roller holding member M, as shown in FIG. 5, the lower end face F _{1 of the} mold D is lowered by lowering the mold D again in the direction of the arrow using the crane means 4 as shown in FIG. Is seated on the upper end surface 6 f of the support member 6. Thus, the mold D is installed in the injection molding machine so as to be parallel to the platen 2.

  In this embodiment, the leveling member 3 and the support member 6 are left as they are in the base 1 and the platen 2, respectively, but can be removed from the base 1 and the platen 2 as necessary.

As described above, according to this embodiment, simply by lowering the mold D, the mold D stands up while approaching the platen 2 along the reference surface 1f. In such a situation, the mold D can be installed such that the mold back surface F ₂ is parallel to the platen side surface ₂ f. For this reason, it is not necessary to use precision equipment, such as a shock absorber.

  Therefore, according to the present embodiment, it is possible to install the mold D easily and in a short time while suppressing the cost, and further provide a new mold installation apparatus and a mold D installation method having a wider application range. can do.

Further, as in this embodiment, if the roller holding member M is provided with a moving path M _{s in} which the roller member 5 can move while rotating, the roller member 5 moves relative to the mold D. Even with the roller member 5 attached, the mold D can move with respect to the roller member 5 with a degree of freedom. As a result, the roller member 5 can be positioned so that the mold D stands up in a relatively stable state. In particular, as in this embodiment, if a concave groove or a through hole that rotatably supports the shaft portion 5b of the roller member 5 is employed as the moving path M _s , the configuration for holding the roller member 5 in a slidable manner is simplified. As a result, further cost reduction is realized.

Alternatively, according to the present invention, as another form, the roller member 5 can be pivotally supported directly on the roller holding member M so as not to move without providing the moving path M _s . In this case, since the roller member 5 does not move relative to the mold D, the mold D can be raised relatively easily. Thereby, installation of the metal mold | die D can be installed still more easily and in a short time.

  Moreover, if the roller member 5 is detachable from the mold D via the roller holding member M as in this embodiment, it can correspond to various molds D. If such a roller holding member M is provided, the mold D can be directly installed by removing it after the mold D is installed.

  Or according to this invention, the roller member 5 can be directly provided in the metal mold | die D as another form. In this case, by using the mold D as it is, the mold D can be installed more easily and in a short time. In particular, in this case, if a means for attaching / detaching the roller member 5 directly to the mold D is provided, the mold D can be directly installed by removing the roller member 5 after the mold D is installed. Examples of such means include, as described above, locking means represented by permanent magnets, electromagnets capable of ON / OFF control, and hooks capable of manual operation.

  When the roller member 5 is provided directly on the mold D, the roller member 5 is supported by the mold M so as not to move or moved by providing a moving path, as in the case of being attached via the roller holding member M. It can also be pivotally supported.

  In addition, the support member 6 can be provided integrally with the roller holding member M in advance as shown in FIGS. In this case, as shown in FIG. 7, for example, the support member 6 can be protruded from the lower end of the roller holding member M so that the mold D stands upright with respect to the reference surface 1f.

As a specific example, a dimension h ₅ from the mold lower end surface F ₁ to the lower end (grounding point) of the roller member 5, and a dimension h 6 from the mold lower end surface F ₁ to the lower end (grounding surface) of the support member ₆ , Are set to be equal. In this case, if the reference plane 1f is a horizontal plane, the die D can be erected perpendicularly to the reference plane 1f by grounding the roller member 5 and the support member 6 with respect to the reference plane 1f. That is, when the mold D is installed in the injection molding machine, it can be erected stably while maintaining parallelism with the reference surface 1f, as in the case where the support member 6 is provided as a separate body.

According to the present invention, the same applies to the case where the lower end of the roller holding member M is set as the base point in the configuration described above. The same applies to the case where the roller member 5 is provided directly at the lower end of the mold without providing the roller holding member M. In this case, the support member 6 is provided integrally with the lower end surface F _{1 of the} mold.

  Furthermore, according to the present invention, the roller member 5 can be made of a magnetic material, and the mold D or the roller holding member M can be provided with a magnet. In this case, the roller member 5 can be set to the initial position by holding the roller member 5 at the initial position with a magnet. That is, since the setting with respect to the initial position of the roller member 5 becomes easy, the mold D can be positioned more easily and in a short time.

The above description shows preferred forms of the present invention, but various modifications can be made within the scope of the claims. For example, according to the present invention, by omitting the alignment member 3, the mold back F ₂ can be directly brought into contact with the platen side 2f. In addition, according to the present invention, each component of the above-described form can be appropriately combined depending on the application and the like.

  In the workpiece installation apparatus and workpiece installation method according to the present invention, the suspended workpiece is lowered in the vicinity of the vertical wall provided so as to be substantially upright with respect to the reference plane, and the side surface of the vertical wall and the workpiece If it is to be installed so that the side surface is substantially parallel, the type of workpiece is not limited to the mold and can be used for various types.

DESCRIPTION OF SYMBOLS 1 Base 1f Reference surface 2 Platen 2f Platen side surface 3 Paralleling member 3f Tip surface of paralleling member 3p Upper edge (fulcrum) of paralleling member
4 Crane Means 4a Arm 4b Linear Member 5 Roller Member 5a Roller Member Main Body 5b Roller Member Shaft 6 Support Member (Parallel Member)
Side F ₁ die lower end face F ₂ die back F ₃ die front F _M roller holding member lower surface M roller holding member M _S moving path O _M mold center of gravity of the upper face 7 pressing member 7f pressing member 6f supporting member

Claims (9)

Crane means for suspending a work so that it can be raised and lowered in the vicinity of a vertical wall provided so as to be substantially orthogonal to the reference plane,
A workpiece installation device that suspends the workpiece in a state where the lower end surface of the workpiece is tilted away from the side surface of the vertical wall and installs the workpiece so that the side surface of the workpiece is substantially parallel to the side surface of the vertical wall. Because
A roller that protrudes from the lower end side of the workpiece toward the reference surface at a position immediately below the center of gravity in a state in which the workpiece is suspended or at a position closer to the vertical wall than immediately below the center of gravity. A workpiece installation device characterized in that a member is provided.   The work installation apparatus according to claim 1, wherein a moving path in which the roller member is movable while rotating is formed in the work.   2. The work placement apparatus according to claim 1, wherein the roller member is pivotally supported by the work so as not to move.   4. The work installation apparatus according to claim 2, further comprising means for attaching and detaching the roller member to the work.   2. The work installation apparatus according to claim 1, further comprising a roller holding member that rotatably holds the roller member and is detachable from the work.   6. The work placement apparatus according to claim 5, wherein a moving path is formed in the roller holding member so that the roller member can move while rotating.   6. The work placement apparatus according to claim 5, wherein the roller member is pivotally supported by the roller holding member so as not to move.   8. The work installation apparatus according to claim 6, wherein means for attaching and detaching the roller member is provided on the roller holding member. A method in which a suspended work is lowered in the vicinity of a vertical wall provided so as to be substantially orthogonal to a reference plane, and the side surface of the vertical wall and the side surface of the work are installed so as to be substantially parallel to each other. Because
A roller member that protrudes from the lower end surface of the workpiece toward the reference surface at a position immediately below the center of gravity in a state where the workpiece is suspended from the workpiece, or at a position closer to the vertical wall side than directly below the center of gravity. Provided,
The workpiece is suspended in a state where the lower end surface of the workpiece is tilted away from the side surface of the vertical wall,
The workpiece is guided by the roller member so that the roller member comes into contact with the reference surface as the workpiece descends and the workpiece is brought close to the vertical wall so that both side surfaces thereof are substantially parallel to each other. Installation method.

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