JP2008302499A - Manufacturing method of cooling pipe jig and cooling device - Google Patents

Abstract

In a manufacturing process of a mold cooling apparatus having a cooling circuit including a reciprocating cooling pipe, a jig for holding an installation plate and a cooling pipe joint in order to perform piping work of the cooling circuit, Propose a versatile one.
A jig 10 includes a base 12 on which a support shaft 11 is erected, and a plurality of flexible arms 13, 13 on which a base portion 13a is supported on the support shaft 11 and is movable in a plane. And supporting columns 14, 14... That are fixed to the distal ends of the flexible arms 13, 13... And extend in a direction substantially orthogonal to the flat surface. A support portion 19 that supports the plate 31 and a core portion 17 that is inserted in the cooling pipe joint 30 and prevents the cooling pipe joint 30 from swinging in a direction substantially parallel to the flat surface are provided.
[Selection] Figure 3

Description

  The present invention relates to a technique for manufacturing a mold cooling apparatus having a cooling circuit including a reciprocating cooling pipe, and more particularly to a jig used when piping work for a cooling circuit is performed.

  A mold used for die casting, injection molding or the like is provided with a mold cooling device for controlling the mold temperature. As one form of the mold cooling device, for example, as shown in Patent Document 1 or Patent Document 2, there is one in which a reciprocating cooling pipe is inserted in a mold and cooling water is conducted to the reciprocating cooling pipe. The reciprocating cooling pipe comprises an inner cylinder and an outer cylinder arranged concentrically, and a cooling water forward path and a return path are formed in one cooling pipe.

  The mold cooling device 20 shown in FIGS. 1 and 2 is provided with a reciprocating cooling pipe 35 inserted into a cooling hole 28 formed in the mold 27. A water supply manifold 36 for supplying cooling water is connected via a pipe 40 to the cooling pipe joint 30 which is externally provided with a seal member 38 such as an O-ring interposed at the head of the reciprocating cooling pipe 35. The Further, a drainage manifold 37 for draining cooling water is connected to the cooling pipe joint 30 through a pipe 40. A cooling circuit of the mold cooling device 20 is formed by the water supply manifold 36, the pipe 40, the cooling pipe joint 30, the reciprocating cooling pipe 35, the pipe 40, the drainage manifold 37, and the like.

  The cooling circuit of the mold cooling apparatus 20 having the above configuration is piped on the installation plate 31. A water supply manifold 36 and a drainage manifold 37 are fixed to the peripheral portion of the installation plate 31 in advance, and a joint mounting hole 32 is formed at a position overlapping the cooling hole 28 of the mold 27. Then, after the cooling pipe joint 30 is inserted into the joint mounting hole 32 of the installation plate 31, a pipe 40 for connecting the cooling pipe joint 30 and the water supply manifold 36 is connected. A pipe 40 that communicates with the manifold 37 is connected. In this manner, the cooling pipe joint 30, the water supply manifold 36, the drainage manifold 37, and the pipes that communicate these are installed on the installation plate 31, and the reciprocating cooling pipe 35 is connected to the cooling pipe joint 30. Inserted, the cooling circuit is assembled.

  Two pipes of the water supply side and the drainage side are connected to the above-mentioned cooling pipe joint. For this reason, if the connection work between the cooling pipe joint and the pipe is not performed in a state in which the installation plate and the cooling pipe joint are constrained to be substantially vertical, the cooling pipe joint and the pipe are inclined or connected. The cooling pipe joint may tilt with respect to the plate. If the cooling pipe joint is tilted with respect to the installation plate, the reciprocating cooling pipe inserted into the cooling pipe joint and the cooling pipe joint may be squeezed or leakage of cooling water may be present. A problem such as damage to the seal member occurs. In particular, since the pipe is made of a steel pipe and does not have stretchability, the occurrence of such a problem is remarkable.

Therefore, in order to perform piping work of the cooling circuit, a jig for holding the installation plate and the cooling pipe joint is used. As shown in FIG. 6, the conventional jig includes a plate member 45 and a shaft-like member 46 erected substantially perpendicular to the plate member 45. The shaft-shaped member 46 is disposed at a position corresponding to the joint mounting hole of the installation plate held on the plate member 45.
In the piping operation of the cooling circuit using the jig, first, a joint mounting hole of the installation plate is inserted into the shaft-shaped member of the jig, and the installation plate is arranged in the jig. Subsequently, the shaft-like member is inserted into the cooling pipe joint, and further, the cooling pipe joint is fixed to the installation plate. In this manner, the pipe is connected to the cooling pipe joint in a state where the cooling pipe joint is fixed to the installation plate and the cooling pipe joint is restrained by the shaft-like member.

However, the jig having the above configuration cannot be versatile with respect to the variety of molds. In other words, since the position of the cooling hole varies from mold to mold, the position of the fitting mounting hole (cooling pipe joint / reciprocating cooling pipe) provided on the installation plate also varies from mold to mold. It was necessary to manufacture a jig for performing each mold.
JP-A-9-327760 JP 2006-198656 A

  In view of the above, the present invention provides a jig for holding an installation plate and a cooling pipe joint in order to perform piping work for a cooling circuit in a manufacturing process of a mold cooling apparatus having a cooling circuit including a reciprocating cooling pipe. We propose a product with versatility for mold diversity.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  That is, in claim 1, in the manufacturing process of the mold cooling apparatus having a cooling circuit including a reciprocating cooling pipe, in order to perform piping work of the cooling circuit, an installation plate on which the cooling circuit is piped, and the installation A cooling pipe jig for holding a cooling pipe joint mounted in a joint mounting hole formed in a plate, and a base on which a support shaft is erected, and a base portion of which is supported by the support shaft. A flexible arm that is movable in a plane; and a support column that is fixed to the flexible arm and extends in a direction substantially orthogonal to the plane, and a support unit that supports the installation plate on the support column; A core portion that is inserted into the cooling pipe joint and prevents the cooling pipe joint from swinging in a direction substantially parallel to the flat surface is provided.

  In claim 2, the support column has a small diameter portion that can be inserted into a cooling pipe joint, and a large diameter portion that is larger in diameter than the joint mounting hole and is located below the small diameter portion, The small diameter portion functions as the core portion, and the step surface between the small diameter portion and the large diameter portion functions as the support portion.

  In Claim 3, the cooling pipe joint inserted in the installation board substantially perpendicularly, the cooling pipe connected to the said cooling pipe joint, and the water supply which is connected to the said cooling pipe joint and supplies a refrigerant | coolant to the said cooling pipe A cooling device comprising a pipe and a drain pipe connected to the cooling pipe joint for draining a refrigerant from the cooling pipe, or a flexible arm movable in a plane, Inserting a cooling pipe joint into the installation plate substantially vertically using a cooling pipe jig provided with a plurality of support arms provided and provided with support pillars extending in a direction substantially orthogonal to the plane. And a step of covering the cooling pipe joint on the support column of the support arm, and a step of connecting the water supply pipe or the drain pipe to the cooling pipe joint.

  As effects of the present invention, the following effects can be obtained.

According to the present invention, in the manufacturing process of the cooling device including the cooling circuit including the reciprocating cooling pipe, the jig for holding the installation plate and the cooling pipe joint for performing the piping work of the cooling circuit is cooled on the support column. By externally fitting the pipe joint, the installation plate can be supported and the movement of the cooling pipe joint in a direction substantially parallel to the installation plate can be restricted. Therefore, a substantially vertical mutual attitude between the cooling pipe joint and the installation plate is maintained, and a pipe can be connected to the cooling pipe joint without tilting the cooling pipe joint. Therefore, in the piping of the cooling circuit, the pipe can be accurately connected to the cooling pipe joint at a predetermined angle, and problems such as wear of parts and water leakage due to poor connection can be prevented.
Furthermore, since the support column can be freely moved by a flexible arm, it can correspond to various positions of cooling holes by individual molds, that is, arrangement of reciprocating cooling pipe joints, and versatility of the jig. Can be provided.

Next, embodiments of the invention will be described.
1 is a diagram showing the structure of a mold cooling device according to one embodiment, FIG. 2 is a cross-sectional view showing the structure of the mold cooling device, FIG. 3 is a diagram showing a cooling pipe jig according to the present invention, FIG. 4 is a diagram for explaining a piping procedure using the cooling pipe jig, and FIG. 5 is a diagram for explaining a piping procedure using the cooling pipe jig.
FIG. 6 is a view showing a conventional cooling pipe jig.

  First, with reference to FIG. 1 and FIG. 2, a configuration of a mold cooling device 20 assembled using a cooling pipe jig 10 (hereinafter simply referred to as “jig 10”) according to an embodiment of the present invention. explain. However, the application range of the jig 10 according to the present invention is not limited to the mold cooling device 20 according to the present embodiment.

  The mold cooling device 20 includes a cooling circuit including a reciprocating cooling pipe 35. The reciprocating cooling pipe 35 is inserted into a cooling hole 28 formed in the mold 27, and cooling water is conducted to the reciprocating cooling pipe 35 to cool the mold 27.

The reciprocating cooling pipe 35 is provided with an outer cylinder 35a and an inner cylinder 35b that are arranged substantially concentrically, a forward path portion of cooling water is formed on the inner circumference of the inner cylinder 35b, and the inner circumference of the outer cylinder 35a. A return path portion of the cooling water is formed between the outer periphery of the inner cylinder 35b.
On the head of the reciprocating cooling pipe 35, a cooling pipe joint 30 is externally provided with a seal member 38 such as an O-ring interposed. The seal member 38 brings the cooling pipe joint 30 and the reciprocating cooling pipe 35 into close contact with each other, and partitions the forward path part and the return path part of the cooling water formed between the reciprocating cooling pipe 35 and the cooling pipe joint 30. .

The cooling pipe joint 30 is provided with a water supply pipe 30 a that communicates with the forward path part of the cooling water of the reciprocating cooling pipe 35 and a drain pipe 30 b that communicates with the return path part of the cooling water of the reciprocating cooling pipe 35.
A water supply manifold 36 is connected to the water supply pipe 30 a of the cooling pipe joint 30 through a pipe 40. A drainage manifold 37 is connected to the drainage pipe 30 b of the cooling pipe joint 30 through a pipe 40. The water supply pipe 30 a or the drain pipe 30 b and the pipe 40 are fastened by a nut 41.

  The water supply manifold 36, the pipe 40, the cooling pipe joint 30, the reciprocating cooling pipe 35, the pipe 40, the drainage manifold 37, and the like form a single cooling circuit. In the cooling circuit, cooling water is introduced into the reciprocating cooling pipe 35 from the water supply manifold 36 via the pipe 40, and the mold 27 is cooled while the cooling water passes through the reciprocating cooling pipe 35, The cooling water is discharged from the reciprocating cooling pipe 35 to the drainage manifold 37 through the pipe 40 and discharged to the outside.

  In the mold cooling device 20, members forming a cooling circuit such as a reciprocating cooling pipe 35, a water supply manifold 36, a drainage manifold 37, and pipes 40, 40... Are assembled on one installation plate 31. A pressing plate 39 is provided substantially parallel to the installation plate 31, and members forming the cooling circuit are disposed between the installation plate 31 and the pressing plate 39 except for the reciprocating cooling pipe 35.

A water supply manifold 36 and a drainage manifold 37 are fixed to the periphery of the installation plate 31.
Further, a joint mounting hole 32 is formed in the installation plate 31 at a position overlapping the cooling hole 28 of the mold 27 in a state where the mold cooling device 20 is attached to the mold 27. The cooling pipe joint 30 is inserted into the joint mounting hole 32. In this embodiment, one end of the cooling pipe joint 30 is inserted into the joint mounting hole 32, and a flange-shaped fixing member is inserted into the one end of the cooling pipe joint 30 to thereby install the installation plate 31. The cooling pipe joint 30 is fixed to the above.

Usually, the mold cooling apparatus 20 is provided with a plurality of cooling circuits, and in one system cooling circuit, a plurality of reciprocating cooling pipes 35, 35.
In this embodiment, five reciprocating cooling pipes 35 are routed through one cooling circuit. That is, the cooling water supplied from the water supply manifold 36 passes through the pipe 40 and the five reciprocating cooling pipes 35, 35.

  Next, the configuration of the cooling pipe jig 10 used for piping each member forming the cooling circuit in the mold cooling apparatus 20 having the above configuration will be described.

  As shown in FIG. 3, the jig 10 includes a base 12 on which a support shaft 11 is erected, and a plurality of support arms on which the base portion 13a is supported on the support shaft 11 and which is movable in a plane. Is done. The support arm includes a flexible arm 13 that is movable in a plane, and a support column 14 that is fixed to the distal end of the flexible arm 13 and extends in a direction substantially orthogonal to the plane.

The flexible arm 13 is composed of a plurality of rod-like members connected to each other so as to be rotatable, and has at least a plurality of joints, or freely on a plane (hereinafter referred to as “movable plane”). Can move on. That is, the joint provided in the flexible arm 13 bends substantially parallel to the movable plane. For example, the movable plane is set to a plane extending in a direction substantially orthogonal to the support shaft 11.
It should be noted that the movable planes of the flexible arms 13, 13... Provided in the jig 10 are determined in parallel so as not to overlap. According to this, the support arms provided in the jig 10 do not interfere with each other.

The support column 14 includes a support portion 19 that supports the installation plate 31, and is inserted into the cooling pipe joint 30 so that the cooling pipe joint 30 is swung in a direction substantially parallel to the flat surface (movable plane). And a core portion 17 for preventing the above.
The jig 10 is preferably provided with three or more support columns 14. Thereby, the installation plate 31 contacts the jig 10 at three or more points and is stably supported.

The support column 14 is integrally provided with a core portion 17 that can be inserted into the cooling pipe joint 30 and a support height adjusting portion 18 that is larger in diameter than the joint mounting hole 32 and is positioned below the core portion 17. The step surface between the core portion 17 and the support height adjusting portion 18 is the support portion 19 of the installation plate 31.
In other words, the support column 14 has a small-diameter portion that can be inserted into the cooling pipe joint 30 and a large-diameter portion that is larger in diameter than the joint mounting hole 32 and is positioned below the small-diameter portion. The small diameter portion functions as the core portion 17, and the step surface between the small diameter portion and the large diameter portion functions as the support portion 19.

Further, in the support columns 14, 14... Provided in the jig 10, each support height adjustment is performed so that all the support portions 19, 19. The lengths of the portions 18, 18... Are determined. That is, the installation plate 31 supported by the support portion 19 of the support column 14 and the support column 14 are substantially orthogonal.
In addition to this, the core portion 17 of the support column 14 has an outer diameter large enough to prevent the externally fitted cooling pipe joint 30 from shaking, and the cooling tube externally fitted to the core portion 17 of the support column 14. The axial direction of the joint 30 and the support column 14 are substantially parallel.
With the above configuration, the installation plate 31 supported by the support portions 19, 19... Of the support columns 14, 14..., And the cooling pipe joint mounted on the installation plate 31 and externally mounted on the support column 14. 30 is held by the jig 10 in a state of being substantially orthogonal.

  Subsequently, the cooling pipe joint 30 inserted substantially vertically on the installation plate 31, the cooling pipe joint 30 connected to the cooling pipe joint 30, and the cooling pipe joint 30 connected to the cooling pipe joint 30. A method for manufacturing the mold cooling apparatus 20 including a water supply pipe 30a that supplies a refrigerant and a drain pipe 30b that is connected to the cooling pipe joint 30 and drains the refrigerant from the cooling pipe joint 30 will be described.

  In the manufacture of the mold cooling device 20, a support arm comprising a flexible arm 13 movable in a plane and a support column 14 provided on the flexible arm 13 and extending in a direction substantially orthogonal to the plane. A plurality of cooling pipe jigs 10 are used.

First, piping work is performed for one cooling circuit among the cooling circuits provided in a plurality of systems.
First, the base 12 of the jig 10 is installed at a stable position. Then, the flexible arm 13 of the jig 10 is appropriately moved, and the support column 14 is inserted into the joint mounting hole 32 of the installation plate 31 into which the cooling pipe joint 30 is inserted.
As described above, when the support column 14 is inserted into the joint mounting hole 32 of the installation plate 31, as shown in FIG. 4, the support portion between the core portion 17 of the support column 14 and the support height adjusting portion 18. 19, the installation plate 31 is supported by the jig 10 substantially parallel to the movable plane of the flexible arm 13.

  In addition, when there are a plurality of reciprocating cooling pipes 35 included in a single cooling circuit (a series of cooling circuits in which the same refrigerant flows continuously), all of the joint mounting holes 32 in which these reciprocating cooling pipes are installed are the same. .. Included in the jig 10 are inserted. Further, when the number of reciprocating cooling pipes 35 included in one system is 2 or less, in order to support the installation plate 31 more stably, the support column 14 is inserted into the joint mounting hole 32 not included in the system. Is done.

And the cooling pipe joint 30 is inserted and fixed to the thing in which the support pillar 14 was inserted among the joint mounting holes 32 of the installation plate 31 fixed to the jig 10.
As described above, since the installation plate 31 and the support column 14 are substantially vertical, the cooling pipe joint 30 is fixed to the installation plate 31 substantially vertically. Further, the cooling pipe joint 30 is maintained in a posture that is substantially perpendicular to the installation plate 31 by the support column 14 penetrating the cooling pipe joint 30.

  As described above, the pipe 40 is fixed and connected to the cooling pipe joint 30 with the nut 41 in a state where the cooling pipe joint 30 is fixed substantially vertically to the installation plate 31. As shown in FIG. 5, the water supply manifold 36 and the pipe 40, the pipe 40 and the water supply pipe 30a of the cooling pipe joint 30, the drain pipe 30b and the pipe 40 of the cooling pipe joint 30, and the pipe 40 and the drainage manifold 37 are connected to each other. Is done.

  Subsequently, a holding plate 39 is attached so as to sandwich the water supply manifold 36, the drainage manifold 37, the cooling pipe joint 30, and the pipe 40 with the installation plate 31. Finally, the cooling pipe joint 30 is reciprocally cooled. The pipe 35 is inserted and the cooling circuit of the mold cooling device 20 is assembled.

  When the cooling circuit of one system is assembled in this way, the cooling circuits of the other systems are assembled in the same manner, the cooling circuits of all the systems are assembled, and the cooling circuit piping in the mold cooling apparatus 20 is assembled. The work is finished.

In the method for manufacturing the mold cooling apparatus 20 described above, a step of inserting the cooling pipe joint 30 into the installation plate 31 substantially vertically, and a step of mounting the cooling pipe joint 30 on the support column 14 of the support arm; , Connecting the water supply pipe 30a or the drain pipe 30b to the cooling pipe joint 30 is included.
The step of inserting the cooling pipe joint 30 into the installation plate 31 substantially vertically and the step of mounting the cooling pipe joint 30 on the support column 14 of the support arm are performed substantially simultaneously as described above. There is also.

According to the method for manufacturing the mold cooling apparatus 20, the cooling pipe joint 30 is externally mounted on the support column 14 of the jig 10, so that the installation plate 31 is stably supported at three or more points, and the cooling The movement of the pipe joint 30 in the direction substantially parallel to the installation plate 31 is restricted. Accordingly, since the substantially vertical mutual attitude between the cooling pipe joint 30 and the installation plate 31 is maintained during the piping work, the pipe 40 can be connected to the cooling pipe joint 30 without tilting the cooling pipe joint 30. .
That is, by using the jig 10, the verticality of the cooling pipe joint 30 with respect to the installation plate 31 is ensured, and the tilt and inclination of the cooling pipe joint 30 are forcibly corrected, thereby causing water leakage due to an assembly failure, gasket It is possible to prevent water leakage due to damage to the joint and water leakage due to joint damage. By using the jig 10, the piping assembly accuracy of the cooling circuit is improved, and problems such as wear of parts and water leakage due to poor assembly can be prevented.

Further, since the flexible arms 13, 13... Of the jig 10 freely move on a movable plane, it is possible to move the cooling pipe joint 30 and the pipe 40 to be connected to desired positions of the operator. Thus, workability can be improved.
Further, the flexible arms 13, 13... Of the jig 10 move freely on a movable plane, so that the cooling pipe joint 30 and the pipe are not produced between the support column 14 and the cooling pipe joint 30. 40 can be connected.

  Further, in the jig 10, since the support column 14 is freely moved by the flexible arm 13, the support column 14 is moved in accordance with a change / change in the position of the joint mounting hole 32 drilled in the installation plate 31. The jig 10 can have versatility corresponding to a variety of molds.

The figure which shows the structure of the metal mold cooling device which concerns on one Example. Sectional drawing which similarly shows the structure of a metal mold cooling device. The figure which shows the jig | tool for cooling piping which concerns on this invention. The figure explaining the piping procedure using the jig for cooling piping. The figure explaining the piping procedure using the jig for cooling piping. The figure which shows the conventional jig for cooling piping.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Jig for cooling piping 11 Support shaft 12 Base 13 Flexible arm 14 Support pillar 17 Core part 18 Support part 19 Support surface

Claims (3)

In the manufacturing process of a mold cooling apparatus having a cooling circuit including a reciprocating cooling pipe, in order to perform piping work of the cooling circuit, an installation plate on which the cooling circuit is piped, and a joint drilled in the installation plate A cooling pipe jig for holding a cooling pipe joint mounted in a hole,
A base on which a spindle is erected,
A flexible arm whose base is supported on the spindle or movable in a plane;
A support column fixed to the flexible arm and extending in a direction substantially orthogonal to the flat surface,
The support column is provided with a support portion that supports the installation plate, and a core portion that is inserted into the cooling pipe joint and prevents the cooling pipe joint from swinging in a direction substantially parallel to the flat surface. A cooling pipe jig characterized by that. The support pillar is
A small-diameter portion that can be inserted into the cooling pipe joint, and a large-diameter portion that is larger in diameter than the joint mounting hole and is located below the small-diameter portion,
The small diameter portion functions as the core portion, and the step surface between the small diameter portion and the large diameter portion functions as the support portion, respectively.
The cooling piping jig according to claim 1. A cooling pipe joint inserted substantially perpendicularly to the installation plate; a cooling pipe connected to the cooling pipe joint; a water supply pipe connected to the cooling pipe joint for supplying refrigerant to the cooling pipe; and the cooling pipe A cooling device manufacturing method comprising a drain pipe connected to a joint and draining the refrigerant from the cooling pipe,
Using a cooling pipe jig comprising a plurality of support arms each having a flexible arm movable within a plane and a support arm provided on the flexible arm and extending in a direction substantially orthogonal to the plane.
Inserting the cooling pipe joint into the installation plate substantially vertically;
Sheathing the cooling pipe joint on the support column of the support arm;
Connecting the water supply pipe or the drain pipe to the cooling pipe joint;
A method for manufacturing a cooling device, comprising:

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