JPH0215371B2 - - Google Patents

Description

Detailed Description of the Invention <Industrial Application Field> The present invention relates to a metal mold used for carrying in and out of a vertical molding machine for rubber, plastic, etc. when the mold is attached and removed. The present invention relates to a molding device equipped with a mold exchange mechanism.

<Prior Art> Conventionally, there has been a molding apparatus of this type as shown in FIG.

This molding device is connected to a vertical molding machine 1, a pedestal 4 installed on a floor surface H around the periphery of the vertical molding machine 1, and a hydraulic lifting device (not shown) for opening and closing a mold 2 in the molding machine 1. A plurality of rollers 6, which are rotated by a drive motor 5 via a chain 7, are respectively arranged on the frames 3 and 4. Ta. Further, below the pedestal 3, there is provided a hydraulic device 8 for raising and lowering the outer peripheral surfaces of the plurality of rollers 6 to protrude from the upper surface of the lower mold movable platen 1b.

The mold 2 was attached to the molding machine 1 in the following manner.

(1) In advance, operate the hydraulic device 8 to make the outer peripheral surfaces of the plurality of rollers 6 of the pedestal 3 project upward from the upper surface of the lower mold movable platen 1b, and then move the mold 2 onto the pedestal 4 using a crane or the like. Place it on the roller 6 of.

(2) The rollers 6 of the frames 3 and 4 are each rotated by the drive motor 5, and the mold 2 is conveyed and placed at a predetermined position on the lower mold movable platen 1b of the molding machine 1.

(3) Activate the hydraulic device 8 to lower the pedestal 3,
The lower surface of the lower mold 2b of the mold 2 is brought into contact with the upper surface of the lower mold movable platen 1b on the periphery of the pedestal 3, and the lower mold 2b is fixed to the upper surface of the lower mold movable platen 1b by a fixing means (not shown) (such as bolting). let

(4) The lower movable platen 1 is moved by a hydraulic lifting device (not shown).
Raise the mold 2 together with the upper mold 2a of the mold 2.
The upper surface is brought into contact with the upper mold fixed platen 1a of the vertical molding machine 1.

(5) Fix the upper mold 2a of the mold 2 to the lower surface of the upper mold fixing plate 1a by means of fixing means (not shown) (bolts, etc.), and complete the installation of the mold 2 to the vertical molding machine 1.

Furthermore, the mold 2 was removed from the vertical molding machine 1 by reversing the process described above.

<Problems to be Solved by the Invention> However, in the conventional molding apparatus, the pedestal 4 is arranged on the floor surface H at the periphery of the vertical molding machine 1, and the pedestal 4 requires space. In some cases, the pedestal 4 becomes a hindrance and hinders work during molding, repair of the vertical molding machine 1, and the like.

In addition, the pedestal 4 is usually 300~
The height of the mold 2 is 1200 mm, and the replacement work of the mold 2 involves hanging the mold 2 on the pedestal 4 using a crane or the like, which is accompanied by danger.

Further, each of the frames 3 and 4 is equipped with a rotationally driven roller 6, which is a feeding means for moving the mold 2, and in addition to a drive motor 5, a chain 7, etc., various types of rollers such as a sprocket and an idle roller are provided. Many parts were required, and the cost was high due to the large number of components.

This invention solves the above-mentioned problems, and makes it possible to free up space on the floor around the periphery of a vertical molding machine, making it easy to perform molding and molding machine repair work without any hindrance, and also saves money. It is an object of the present invention to provide a molding device equipped with a mold changing mechanism that can reduce the danger during mold changing work and further reduce the number of component parts of the device itself, thereby reducing costs.

<Means for Solving the Problems> A molding apparatus equipped with a mold exchange mechanism according to the present invention has a mold having an upper mold and a lower mold placed on the upper surface thereof, and whose peripheral edge substantially coincides with the floor surface. a vertical molding machine equipped with a lower mold movable platen that allows the upper surface to be lowered to a height;
A molding device comprising a mold exchange mechanism used when carrying the mold into and out of the vertical molding machine, wherein the mold exchange mechanism is connected to an in-machine mold conveying device and a mold transfer mechanism in the machine. The in-machine/out-machine mold conveying devices each include a support frame and a plurality of molds supported by the support frame so as to be able to convey the molds. a rotatable roller; and an elevating device that is disposed below the support frame and allows the plurality of rollers to be raised and lowered via the support frame,
and each of the plurality of rollers is supported by the support frame with an outer circumferential surface that can come into contact with the lower surface of the lower die of the mold protruding from the upper surface of the support frame, and
The in-machine mold conveying device is arranged along the loading/unloading direction of the molds with respect to the vertical molding machine, and the in-machine mold conveying device moves the outer circumferential surfaces of the plurality of rollers to the lower mold movable platen by lifting and lowering with the lifting device. The mold transfer device is disposed in a recess of the lower mold movable platen so as to be able to be raised upwardly or lowered downwardly from the upper surface, and the external mold conveying device moves the outer circumferential surfaces of the plurality of rollers by being raised and lowered by the lifting device. It is arranged in a recess in the floor of the periphery of the vertical molding machine on an extension line in the arrangement direction of the rollers of the in-machine mold conveying device so as to be able to be raised above or lowered from the floor surface of the periphery of the vertical molding machine. The feeding device includes a piston rod, a fluid pressure cylinder that reciprocates the piston rod, and an engagement member that connects the mold and the piston rod, and the piston rod of the feeding device and the fluid pressure cylinder are configured to The cylinder is disposed in a recess in the floor near the external mold conveying device so that the moving direction of the piston rod coincides with the loading/unloading direction of the mold.

<Operations and Effects of the Invention> In the molding apparatus equipped with the mold exchange mechanism according to the present invention, when the mold is carried in for installation, the Then, as in the past, a crane or the like is used to place the mold. At this time, in advance, operate each lifting device of the mold conveyor inside and outside the machine to position the outer circumferential surface of each roller below the upper surface of the lower mold movable platen and the floor surface of the periphery of the vertical molding machine. put.

Further, the lower mold movable platen is placed at a height such that its upper surface substantially coincides with the floor surface around the periphery of the vertical molding machine.

Thereafter, the elevating devices of the mold transport devices inside and outside the machine are operated to cause the outer peripheral surfaces of the respective rollers to protrude upward from the upper surface of the lower mold movable platen and the floor surface. Then, the piston rod of the feeding device is connected to the mold using the engagement member to operate the fluid pressure cylinder, and the feeding device transports it on each roller from the position of the mold transporting device outside the machine to the mold transporting device inside the machine. The mold is carried into the position, and the lower mold of the mold is placed at the lower mold mounting position of the lower mold movable platen.

After that, the engaging member is removed, and the lifting devices of the mold conveyor inside and outside the machine are operated to lower the outer circumferential surface of each roller below the upper surface of the lower mold movable platen and the floor surface, and lower it. The lower surface of the mold is brought into contact with the upper surface of the periphery of the recess on the lower mold movable platen where the in-machine mold transfer device is installed, and the lower mold is mounted on the upper surface of the lower mold movable platen, and then The lower mold movable platen is raised together with the mold using the hydraulic lifting device for the lower mold movable platen,
It is sufficient to attach the upper mold to a specified upper mold fixing plate.

Incidentally, when the mold is removed from the vertical molding machine and the mold is carried out, the steps described above may be performed in reverse.

Therefore, in the molding apparatus equipped with the mold exchange mechanism according to the present invention, the external mold conveying device and the feeding device, which are disposed in the recess in the floor around the periphery of the vertical molding machine, are arranged at the periphery of the molding machine at a predetermined time. It is completely buried below the floor surface of the molding machine, which frees up space on the floor surface around the molding machine, making it easy to perform molding and molding machine repair work without any hindrance.

In addition, when replacing the mold, it is possible to replace the mold from the floor as before.
Since the replacement work can be done at floor level instead of on a pedestal with a height of 300 to 1200 mm, the replacement work can be done with less risk.

Furthermore, the molding apparatus according to the present invention is not equipped with a feeding means for moving the mold to a device (frame) inside and outside the molding machine, unlike the conventional one, and does not have a mold conveyor disposed inside and outside the molding machine. Separately from the molding machine, a feeding device that serves as a means for feeding the mold is installed in a recess in the floor around the periphery of the molding machine. The structure requires only a support frame that supports each roller and a lifting device that slightly protrudes the outer circumferential surface of each roller together with the support frame from the upper surface of the lower movable platen or the floor surface, which reduces the number of component parts and reduces costs. be able to.

<Example> Hereinafter, an example of the present invention will be described based on the drawings.

In the molding device equipped with the mold exchange mechanism of the embodiment,
The mold exchange mechanism is an in-machine mold transport device 1 with two each.
3. External mold transport device 14 and mold transport device 1
A feeding device 15 for moving the molds 12 on 3 and 14
(See Figures 1, 2, 5, and 6).

The vertical molding machine 11 of the embodiment includes an upper fixed platen 11a and a lower movable platen 11b connected to a hydraulic lifting device, similar to the conventional one.
is configured such that its upper surface can be lowered to a height that substantially coincides with the floor surface H at the periphery of the vertical molding machine 11 by operating a hydraulic lifting device.

Each in-machine mold transport device 13 includes a support frame 13b,
Four rotatable rollers 13a and a lifting device 13
c, and two grooves 1 as recesses formed by opening the upper surface side of the lower mold movable platen 11b.
10 and are arranged in parallel. Note that the longitudinal direction of this groove 110 is the same as that of the vertical molding machine 11.
This corresponds to the direction in which the mold 12 is carried in and out.

Each roller 13a is supported by the support frame 13b so that its rotating shaft is arranged horizontally and the outer peripheral surface protrudes upward from the upper surface of the support frame 13b. When the molds 12 are arranged along the loading/unloading direction and the molds 12 are placed above, the lower mold 12b
The mold 12 is moved to the roller 13 with the outer peripheral surface in contact with the lower surface.
It is configured so that it can be transported horizontally along the arrangement direction of a.

Each lifting device 13c is arranged below the support frame 13b, and is configured using hydraulic pressure, pneumatic pressure, etc. so that each roller 13a can be raised and lowered together with the support frame 13b. During operation, each lifting device 13c moves the outer circumferential surface of each roller 13a onto the lower mold movable platen 11.
b It is arranged in the groove 110 so that it can be protruded slightly upward from the upper surface or lowered downward.

Each external mold conveying device 14 includes a roller 14a, a supporting frame 14b, and a lifting device 14c similar to the roller 13a, supporting frame 13b, and lifting device 13c of the internal mold conveying device 13.

The two external mold conveying devices 14 are divided into four rollers 14 by lifting and lowering by the lifting device 14c.
a The periphery of the vertical molding machine 11 on the extension line of the arrangement direction of the rollers 13a of the in-machine mold conveying device 13 so that the outer peripheral surface can be raised or lowered from the floor surface H of the periphery of the vertical molding machine 11. The grooves 20 are respectively disposed in two recesses formed in the floor surface H of the recess.

In addition, these external mold conveying devices 14 bring the lower surface of the lower mold 12b into direct contact with the floor surface H when the respective lifting devices 14c are operated to lower the outer circumferential surface of each roller 14a below the floor surface H. Place the mold 1 safely on the floor H.
It is configured so that 2 can be placed.

The feeding device 15 includes a fluid pressure cylinder 15a that uses hydraulic pressure, pneumatic pressure, etc., and its piston rod 15.
b, and an engaging member 17 that connects the mold 12 and the piston rod 15b, and the tip of the rod 15b is directed toward the molding machine 11 side, and the direction of movement of the rod 15b is made to coincide with the loading/unloading direction of the mold 12. , the groove 2 in which the external mold conveying device 14 is disposed
It is arranged in a groove 21 as a recess formed in the floor surface H at the periphery of the molding machine 11 between 0 and 20.

Further, at the tip of the rod 15b, a trolley 1 is disposed below the floor surface H in the groove 21, and is equipped with wheels 18a on both sides and a recess 18b in the upper part.
8 are connected. This trolley 18 consists of four wheels located below the floor surface H in the groove 21.
A guide member 19 consisting of a book rail 19a is disposed with its wheels 18a arranged between the upper and lower rails 19a.

The engaging member 17 is provided with a convex portion 17b that can fit into the recess 18b of the trolley 18 at the lower part of the main body 17a, has a forked tip, and has a hook 70 pivotally attached to the sides of the two tip portions 17c. There is. This engaging member 1
7 is a convex portion 17b for two attachments 16 provided with a contact portion 16a and a hook portion 16b provided at a predetermined position of a lower mold 12b of the mold 12.
After the hook 70 is fitted into the carriage recess 18b, the hook 70 is engaged with the hook 16b, and when the rod 15b of the feeding device 15 moves forward, the tip 17c of the engagement member 17 is engaged with the hook 16b. When the rod 15b of the feeding device 15 moves back, the hook 70 of the engagement member 17 is used to pull the hook 16b of the attachment 16 to push the lower mold 12b. Attachment 1 of the lower mold 12b
6 and the carriage 18 of the feeding device 15 so as to be detachably attached thereto.

Next, the attachment and detachment of the mold 12 to the vertical molding machine 11 will be explained using the apparatus of this embodiment.

Installation is done as follows.

(1) Using a crane or the like, place the mold 12 directly on the floor H where the external mold transport device 14 is installed (see Figure 3). By the way, in this case,
The elevating device 14c of each external mold conveying device 14 is operated, and the outer circumferential surface of each roller 14a is located below the floor surface H. Further, the hydraulic lifting device is activated, and the upper surface of the lower mold movable platen 11b in the vertical molding machine 11 is lowered to a height that substantially coincides with the floor surface H. Furthermore, the groove 1 of the lower mold movable platen 11b
Each in-machine mold transport device 1 arranged in 10
The lifting device 13c of No. 3 is also operated, and each roller 13
The outer peripheral surface a is located below the upper surface of the lower mold movable platen 11b.

(2) The lifting devices 13c and 14c of the in-machine mold conveying device 13 and the external mold conveying device 14 are operated to lift each roller 13a and 14 together with the support frames 13b and 14b.
a, and each roller 13a, 14
a The outer peripheral surface is made to protrude by about 1 to 3 mm from the upper surface of the lower mold movable platen 11b or the floor surface H, and the heights thereof are made to be the same. The reason why each roller 13a, 14a is made to protrude is that the mold 12 is moved when the mold 12 is moved.
This is to prevent the lower surface of the lower mold 12b from coming into contact with the lower mold movable platen 11b or the floor H so that the movement of the lower mold 12b is smooth. You can deal with it by doing so.

(3) Fit the protrusion 17b of the engagement member 17 into the carriage recess 18b at the tip of the rod 15b, and connect the hook 70 of the body tip 17c of the engagement member 17 to the attachment 16 on the lower die 12b.
the mold 12 and the rod 1.
5b. After that, the fluid pressure cylinder 15a of the feeding device 15 is operated, and the mold 12 is
is carried from the outside mold transport device 14 onto the inside mold transport device 13. At this time, since the outer circumferential surfaces of freely rotatable rollers 13a and 14a are in contact with the lower surface of the lower mold 12b on the inside and outside mold conveying devices 13 and 14, smooth conveyance can be performed. In addition, in the mold changing device of the embodiment, since the carriage 18 guided by the guide member 19 consisting of the rail 19a is connected to the tip of the rod 15b of the feeding device 15, the pressing force of the rod 15b can be smoothly applied to the engaging member. It can be transmitted to the mold 12 via 17 (see Figures 1, 2 and 5).

(4) Once the mold 12 is set at a predetermined position on the upper surface of the lower mold movable platen 11b by the stopper 22 and guide 23 provided on the lower mold movable platen 11b,
At the same time, the engaging member 17 is removed from the lower mold 12b and the trolley 18, and the lifting device 13c of each in-machine mold conveying device 13 is operated to lower the outer peripheral surface of each roller 13a below the upper surface of the lower mold movable platen 11b. The lower surface of the mold 12b is brought into contact with the upper surface of the lower mold movable platen 11b, and the roller 1 of the external mold conveying device 14
4a is also lowered below the floor H, and the groove 2 in which the external mold conveying device 14 and the feeding device 15 are arranged.
0 and 21 with lids 24 and 25, and the floor surface H is made smooth (see Fig. 4).

(5) After that, the lower mold 12b is fixed to the upper surface of the lower mold movable platen 11b using a fixing means (not shown) (bolts, etc.), and the lower mold is moved by the hydraulic lifting device provided in the vertical molding machine 11. The movable platen 11b is raised to bring the upper surface of the upper die 12a into contact with the upper die fixed platen 11a in the molding machine 11, and the upper die 12a is fixed to the upper die fixed platen 11 by a fixing means (not shown) (bolts, etc.). Then, the attachment of the mold 12 to the vertical molding machine 11 is completed.

After that, it is only necessary to perform molding, and
The mold 12 can be removed by performing the previously described steps in reverse.

Therefore, in the molding apparatus of the embodiment, the external mold conveying device 14 and the feeding device 15, which are disposed outside the vertical molding machine 11, are located below the floor surface H at the periphery of the molding machine 11 at a given time. Since it is buried, it is possible to free up space on the floor H around the periphery of the molding machine 11, and the tops of the external mold transport device 14 and feeding device 15 can be covered with covers 24 and 25 except when necessary. The floor surface H can be kept smooth during molding and when the molding machine 1
1. Repair work can be easily performed without any hindrance.

In addition, when replacing the mold, the distance is 300 to 1200 mm as before.
The mold 1 is not at the height of , but at a height approximately near the floor surface H.
Since the replacement work described in 2 can be performed, the danger associated with that work can be reduced.

Furthermore, the molding apparatus of the embodiment includes a plurality of rotatable and free rollers 13a, 14a, each roller 13
Support frames 13b, 14b that support a, 14a, and each roller 13a, 1 together with the support frames 13b, 14b
4a, two in-machine mold transport devices 13 and two external mold transport devices 14 each consisting of elevating devices 13c and 14c, and a removable engagement member 17 on the mold transport devices 13 and 14. It consists of one feeding device 15 that is connected to the mold 12 and moves the mold 12, and the number of component parts can be reduced compared to conventional ones, thereby reducing costs.

In addition, in the embodiment, two in-machine mold conveying devices 1
3 and an external mold transport device 14 are shown, however, if the mold 12 can be supported in a well-balanced manner, a mold transport device with a wider width may be provided one by one.

In addition, in the embodiment, the carriage 18 guided by the guide member 19 is connected to the tip of the piston rod 15b of the feeding device 15, but if there is no problem with the movement of the mold 12, the carriage 18 guided by the guide member 19 is connected. 18 may be omitted, and the engagement member 17 may be directly connected to the tip of the rod 15b.

Furthermore, in the embodiment, the engaging member 17 has a hook 7.
0, and the engaging member 17 is engaged with the mold 12 via the attachment 16 provided with a hook portion 16b etc. on the mold 12 side. However, of course, the hook 70 is not provided and a pin or It may also be removably engaged with the mold 12 using screws or the like.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of a molding apparatus showing an embodiment of the present invention, FIG. 2 is a plan view of the same embodiment, FIGS. 3 and 4 are sectional views showing usage modes of the same embodiment, FIG. 6 is an exploded perspective view and side view showing the engaged state of the engaging members in the same embodiment, and FIG. 7 is a sectional view showing a conventional molding device. 11...Vertical molding machine, 11b...Lower mold movable plate,
12...Mold, 12a...Upper die, 12b...Lower die, 13...In-machine mold conveyance device, 13a...Roller, 13b...Support frame, 13c...Elevating device, 1
4...External mold conveyance device, 14a...Roller, 1
4b...support frame, 14c...lifting device, 15...
Feeding device, 17... engaging member, H... floor surface.

Claims (1)

[Scope of Claims] 1. A vertical mold on which a mold including an upper mold and a lower mold is placed, and a lower movable platen that allows the upper surface to be lowered to a height that substantially coincides with the floor surface of the periphery. A molding machine,
A molding device comprising a mold exchange mechanism used when carrying the mold into and out of the vertical molding machine, wherein the mold exchange mechanism is connected to an in-machine mold conveying device and a mold transfer mechanism in the machine. The in-machine/out-machine mold conveying devices each include a support frame and a plurality of molds supported by the support frame so as to be able to convey the molds. a rotatable roller; and an elevating device that is disposed below the support frame and allows the plurality of rollers to be raised and lowered via the support frame,
and each of the plurality of rollers is supported by the support frame with an outer circumferential surface that can come into contact with the lower surface of the lower die of the mold protruding from the upper surface of the support frame, and
The in-machine mold conveying device is arranged along the loading/unloading direction of the molds with respect to the vertical molding machine, and the in-machine mold conveying device moves the outer circumferential surfaces of the plurality of rollers to the lower mold movable platen by lifting and lowering with the lifting device. The mold transfer device is disposed in a recess of the lower mold movable platen so as to be able to be raised upwardly or lowered downwardly from the upper surface, and the external mold conveying device moves the outer circumferential surfaces of the plurality of rollers by being raised and lowered by the lifting device. It is arranged in a recess in the floor of the periphery of the vertical molding machine on an extension line in the arrangement direction of the rollers of the in-machine mold conveying device so as to be able to be raised above or lowered from the floor surface of the periphery of the vertical molding machine. The feeding device includes a piston rod, a fluid pressure cylinder that reciprocates the piston rod, and an engagement member that connects the mold and the piston rod, and the piston rod of the feeding device and the fluid pressure cylinder are configured to a cylinder is disposed in a recess in the floor near the external mold conveying device so that the moving direction of the piston rod coincides with the loading/unloading direction of the mold. Equipped with molding equipment.