JP2002011726A - Apparatus for exchanging mold - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for exchanging a mold which can prevent a flexible hose connected with the mold from being disconnected from a hose connecting tool or the mold when the mold to be mounted on a fixed die plate and a movable die plate of a molding machine is carried on the molding machine. SOLUTION: An engaging pin 38 is horizontally provided in the direction intersecting at right angles to the carrying direction of the mold and a connecting mechanism 40 engaging with the engaging pin 38 and connecting the mold 16 with a hose connecting tool 34 is provided on the hose connecting tool 34.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold exchanging apparatus attached to a molding machine such as an injection molding machine or a press molding machine as an auxiliary equipment.

[0002]

2. Description of the Related Art Generally, a mold mounted on a molding machine such as an injection molding machine or a press molding machine is provided with a hot water supply port and a hot water discharge port for temperature adjustment. The mold is maintained at a predetermined temperature by circulating hot water between the mold and a temperature adjusting device connected to the mold via a flexible hose. Therefore, when such a mold is transported onto a molding machine to perform a mold replacement operation, conventionally, the mold transported onto the molding machine is mounted on a fixed die plate and a movable die plate of the molding machine. In addition, since the mold and the temperature control device are connected by a flexible hose, it takes a long time to replace the mold, which causes a reduction in the operating rate of the molding machine. Therefore, in order to solve such a problem, a mold exchanging operation is performed while the mold mounted on the fixed die plate and the movable die plate of the molding machine and the temperature adjusting device are connected with a flexible hose. Is disclosed in Japanese Patent Application Laid-Open No. 1-272427.

[0003]

However, the mold exchanging device disclosed in Japanese Patent Application Laid-Open No. 1-272427 has a problem.
When transferring the mold to the molding machine, a hose connector (manifold) that connects the flexible hose connected to the temperature control device to the flexible hose connected to the mold can be connected to the mold. It moves with the mold in the form of being pulled by the flexible hose. For this reason, when the load acting on the flexible hose on the mold side is excessive, there is a problem that the flexible hose connected to the mold comes off from the hose connector or the mold.

[0004] The present invention has been made in view of the above-mentioned point, and an object of the present invention is to transfer a mold mounted on a fixed die plate and a movable die plate of a molding machine to the molding machine. An object of the present invention is to provide a mold exchanging device which can prevent a flexible hose connected to a mold from coming off from a hose connector or a mold.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a carrier frame having a plurality of rollers for supporting a mold mounted on a fixed die plate and a movable die plate of a molding machine; Roller driving means for driving the rollers to convey the mold onto the molding machine, a temperature adjusting device for adjusting the temperature of the mold, and a flexible hose connected to the temperature adjusting device, A mold exchanging device comprising: a hose connector for relay connection to a flexible hose connected to a mold; and a hose connector support means for supporting the hose connector movably in a direction in which the mold is conveyed. The invention is characterized in that an engaging member is provided on the mold, and a connecting mechanism for engaging the engaging member and connecting the mold and the hose connecting tool is provided on the hose connecting tool.

In a preferred embodiment of the present invention, the engaging member is an engaging pin horizontally provided on the mold so as to be orthogonal to the conveying direction of the mold, and the connecting mechanism is attached to a hose connector. A bracket, a pivot shaft supported in parallel with the engagement pin on the bracket, a connecting member pivotally supported by the pivot shaft, and an urging member for urging the connecting member in a predetermined direction. Have. Further, the connecting member has a hook portion that engages with the engaging pin, and further has a wedge-shaped tip portion for releasing the engagement between the engaging pin and the hook portion in cooperation with the disengagement pin provided on the carrier frame. have.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG.
This will be described with reference to FIGS. In FIG.
Indicates an injection molding machine, and on one side of the injection molding machine 10,
A mold changing device 20 according to one embodiment of the present invention is installed.

[0008] The mold exchanging device 20 is provided with a transfer platform 22, on which a plurality of dies 16 for supporting the fixed die plate 12 and the movable die plate 14 of the injection molding machine 10 are supported. Rollers 24 are provided. These rollers 24 are arranged in two rows on the transport gantry 22. The roller shaft of each roller 24 serves as a roller driving means for driving the rollers to transport the mold 16 onto the injection molding machine 10. A sprocket 26 (see FIG. 2) is mounted.

The mold changing device 20 includes a temperature adjusting device 28 for adjusting the temperature of the mold 16 with hot water or the like, and a flexible hose 30 connected to the temperature adjusting device 28.
A flexible hose 32 connected to the hose 6 and a pair of guide bars 36 for movably supporting the hose connector 34 in the conveying direction of the mold 16. The mold 16 is provided with an engagement pin 38 as an engagement member. The engaging pin 38 is provided horizontally so as to be orthogonal to the conveying direction of the mold 16. The hose connecting tool 34 is engaged with the engaging pin 38 so that the mold 16 and the hose connecting tool 34 Is provided.

[0010] The connecting mechanism 40 is, as shown in FIG.
The bracket 42 includes a bracket 42 fixed to the hose connector 34, a pivot shaft 44 supported by the bracket 42 in parallel with the engaging pin 38, and a connecting member 46 rotatably supported by the pivot shaft 44. The connecting member 46 is provided with a U-shaped hook portion 48 that engages with the engaging pin 38, and engages with an engagement release pin 50 provided at the front end of the transport base 22. Pin 38 and hook 48
A wedge-shaped tip 52 is provided for releasing the engagement with the tip.
The coupling mechanism 40 includes a coil spring 54 as an urging member for urging the coupling member 46 in a predetermined direction (clockwise in the drawing).
5 for receiving the connecting member 46 urged by the
6 are provided.

As shown in FIG. 4, the fixed die plate 12 and the movable die plate 14 of the injection molding machine 10 have a die 16 transferred by a die changing device 20.
Guide rollers 58 for guiding the mold 16 on the injection molding machine, and a clamp device 60 for clamping the mold 16 guided by these guide rollers 58.
And a positioning pin 62 (see FIG. 1).

In the embodiment of the present invention configured as described above, when the rollers 16 provided on the transport gantry 22 are driven by the sprockets 26 to transport the mold 16 to the front end of the transport gantry 22, the connecting mechanism The hose connector 34 connected to the mold 16 via the connecting member 40 is connected to the connecting member 4 of the connecting mechanism 40.
6 and moves to the front end of the transport gantry 22 together with the mold 16 while being pulled. Therefore, an excessive load does not act on the flexible hose 32 on the mold side when the mold 16 is conveyed, so that the mold mounted on the fixed die plate and the movable die plate of the molding machine is removed. When transported upward, the flexible hose connected to the mold can be prevented from coming off the hose connector or the mold.

In the above-described embodiment, the transfer pedestal 22
When the mold 16 conveyed to the front end of the carriage tries to move onto the injection molding machine 10, the wedge-shaped tip 52 of the connecting member 46 comes into contact with the disengagement pin 50 provided at the front end of the conveyance base 22, As a result, the engagement between the engaging pin 38 and the hook portion 48 is automatically released by rotating the connecting member 46 in the counterclockwise direction in the drawing against the urging force of the coil spring 54. 16 can be replaced more quickly.

In the above-described embodiment, the case where the present invention is applied to a mold changing device attached to an injection molding machine has been described. However, the present invention is not limited to this, and is applicable to a press molding machine. The present invention can be applied.

[0015]

As described above, according to the present invention,
A fixed die plate and a movable die of a molding machine are provided by providing an engaging member on the mold and providing a connecting mechanism for engaging the engaging member to connect the mold and the hose connector to the hose connector. When the mold mounted on the plate is transported onto the molding machine, the flexible hose connected to the mold can be prevented from coming off the hose connector or the mold.

[Brief description of the drawings]

FIG. 1 is a diagram showing a schematic configuration of a mold changing apparatus according to an embodiment of the present invention.

FIG. 2 is a rear view of the mold exchanging apparatus shown in FIG.

FIG. 3 is a diagram illustrating a configuration of a coupling mechanism illustrated in FIG. 1;

FIG. 4 is a side view of a fixed die plate and a movable die plate of the injection molding machine shown in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Injection molding machine 12 Fixed die plate 14 Movable die plate 16 Die 20 Die exchanging device 22 Transfer stand 24 Roller 26 Sprocket 28 Temperature control device 30, 32 Flexible hose 34 Hose connector 36 Guide bar 38 Engagement pin 40 Connection mechanism 42 Bracket 44 Pivot shaft 46 Connection member 48 Hook part 50 Disengagement pin 52 Wedge-shaped tip part 54 Coil spring 56 Stopper 58 Guide roller

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yoichiro Mikuri 2068-3 Ooka, Numazu-shi, Shizuoka Toshiba Machine Co., Ltd. (72) Inventor Yasuyuki Sano 3--30 Shimoichichicho, Toyota-shi, Aichi Kojima Press Kogyo Co., Ltd. Company F-term (reference) 4F202 AM15 CA11 CB01 CR01

Claims (5)

[Claims] 1. A transport base having a plurality of rollers for supporting a mold mounted on a fixed die plate and a movable die plate of a molding machine, and driving the rollers to transport the mold onto the molding machine. Roller driving means, a temperature adjusting device for adjusting the temperature of the mold, and a hose connector for relay-connecting a flexible hose connected to the temperature adjusting device to a flexible hose connected to the mold. And a hose connector supporting means for movably supporting the hose connector in the direction of transport of the mold, wherein the mold has an engaging member. A mold exchanging device, wherein a coupling mechanism for coupling the mold and the hose connection tool is provided on the hose connection tool. 2. The mold changing device according to claim 1, wherein the engaging member is an engaging pin horizontally provided on the mold so as to be orthogonal to a conveying direction of the mold. . 3. The connection mechanism includes a bracket attached to the hose connector, a pivot shaft supported by the bracket in parallel with the engagement pin, and a connection pivotally supported by the pivot shaft. The die changing device according to claim 2, further comprising a member and a biasing member for biasing the connecting member in a predetermined direction. 4. The die changing device according to claim 3, wherein the connecting member has a hook portion that engages with the engaging pin. 5. The connecting member has a wedge-shaped distal end for releasing the engagement between the engaging pin and the hook in cooperation with an engagement releasing pin provided on the transport gantry. The mold changing device according to claim 4, wherein: