JPH045528B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a mold attitude changing and conveying device for a horizontal molding machine.

(Prior art) In the case of horizontal molding machines, the molds are opened and closed by moving a movable die plate to which a movable mold is attached laterally relative to a fixed die plate to which a fixed die is attached. ing.

In order to quickly change the mold, that is, change the setup for this horizontal molding machine, there is one that utilizes a setup cart. In other words, in 1987
- As shown in Publication No. 155214, fixed molds and movable molds that have been removed from a horizontal injection molding machine are transported to a predetermined location using a setup trolley, while a new mold is installed on a horizontal injection molding machine. The mold is transported to the horizontal injection molding machine. The molds placed on this setup trolley are fixed molds and movable molds because the horizontal injection molding machine has a structure that is driven to open and close from the side, and the position of the fixed die plate remains unchanged. It is required that the molds be placed side by side on the setup trolley with the fixed mold attached to the fixed die plate as a reference.

By the way, molds that are not currently in use will be stored and put on standby in a predetermined location, but the posture of the molds at this time will depend on the fixed mold being equipped with hot runners, heaters, etc. Located on the upper side, a fixed mold and a movable mold are vertically arranged and overlapped vertically. Therefore, while newly transporting the molds to the horizontal molding machine, it is necessary to change the state from being stored and waiting in the vertical position to the horizontal position as described above. A rotation reversal machine is used for attitude change. In other words, the rotating/reversing machine has two mounting surfaces that make an angle of 90 degrees to each other, and when transporting the molds to the molding machine, one side is placed in a vertical position with the fixed mold on the upper side. The mold carried onto the mounting surface is rotated 90 degrees with respect to the movable mold so that it is received by the other mounting surface, thereby changing its posture. Of course, the setup cart is driven back and forth between the rotary reversal machine and the horizontal forming machine.

(Problems to be Solved by the Invention) By the way, when changing the mold for a horizontal forming machine, since there are inevitably multiple types of molds, the size of the arranged molds, especially The fixed mold and the movable mold are often made to have different widths in the direction of arrangement. In this case, when the setup trolley receives the molds that have been placed side by side on the rotary reversing machine, the reference position of the fixed mold relative to the setup trolley will shift.
This would be unfavorable when transporting the mold from the setup cart to the horizontal forming machine.

In other words, if the mold receiving position of the setup cart relative to the rotary reversing machine is uniformly set so that a large mold can be transferred from the rotary reversing machine to the setup trolley, When the mold is transferred from the rotary reversing machine to the setup trolley, the position of the movable mold relative to the rotary reversing machine is set uniformly, so due to the difference in width, the standard for the fixed mold setup trolley is The position will be shifted by an amount corresponding to this difference in width. This means that it is no longer possible to guarantee a fixed mold reference during subsequent mold assembly on the molding machine.

The present invention has been made in consideration of the above-mentioned circumstances, and it is possible to change the posture of molds from a vertical position to a horizontal position using a rotary reversing machine based on a movable mold.
It is an object of the present invention to provide a mold attitude changing and conveying device for a horizontal molding machine, which allows a fixed mold to be received by a setup truck in a state where the fixed mold is always at a predetermined reference position with respect to the setup truck. purpose.

(Means and operations for solving the problems) In order to achieve the above-mentioned object, the present invention has the following configuration. In other words, the mold is attached as described above to a horizontal molding machine in which the mold is opened and closed by moving the movable die plate to which the movable mold is attached laterally relative to the fixed die plate to which the fixed die is attached. In the posture change and transfer device, the molds to be attached to the horizontal molding machine are rotated from a vertical position in which they are stacked one on top of the other with the fixed molds on top, to a horizontal position by rotating them with the movable mold as a reference. A setup in which a rotary reversing machine that changes posture, and the fixed mold and the movable mold are placed side by side with each other with the fixed mold as a reference, and the horizontal molding machine and the rotary reversing machine are run between the horizontal molding machine and the rotary reversing machine. a trolley; a detection means provided on the rotary reversing machine to detect the width in the arrangement direction of the molds placed on the rotary reversing machine; The structure includes receiving position changing means for changing the mold receiving position relative to the rotary reversing machine.

With this configuration, for molds whose posture has been changed so that they are in a side-by-side position based on the movable mold standard, the mold receiving method of the setup cart can be adjusted according to the difference in the width of the molds in the side-by-side direction. The position is changed, that is, the fixed mold is brought to a position that satisfies a predetermined reference position with respect to the setup trolley.

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

Overall layout In Figure 1, A is the mold tool maintenance area, B is the old mold storage area, and C is the molding machine automatic operation area.
Two horizontal injection molding machines 1 are placed on one side of 0.
5 and two pre-temperature control stations 4 are installed, and a stocker 6 for storing molds is installed on the other side, and mold exchange of the horizontal injection molding machine 15 is performed via a setup trolley 10. . A reversing machine 30 is provided between the setup truck 10 that travels in the molding machine automatic operation area C and the transfer truck 20 that travels in the mold maintenance area A. When transferring the mold between
It is designed to change its posture by 90 degrees. In other words,
Molds are stacked horizontally on the setup trolley 10, that is, fixed molds and movable molds are placed side by side, and molds are stacked vertically on the transport trolley 20, that is, fixed molds and movable molds are placed side by side. The molds are placed vertically in an up-and-down state, and when the molds are transferred to and from the transport vehicle 20, the orientation of the molds is changed by the reversing machine 30. In other words, molds are stacked horizontally on the setup trolley 10, that is, fixed molds and movable molds are placed side by side, and molds are stacked vertically on the transfer trolley 20, that is, fixed molds and movable molds. are placed in a vertical position. This transport vehicle 2
0 is used to communicate with each crane yard D, and slinging work (crane hooking work) is performed on the transport vehicle 20.

The molding machine automatic operation area C also includes a pre-temperature control device 4' that adjusts the hot water supplied to the pre-temperature control station 4, and a mold temperature control device 15' that adjusts the hot water supplied to the molding machine 15. Along with being placed,
A central control panel U that controls the molding machine 15 and the mold temperature control device 15', a pre-temperature control control panel U-1 that controls the pre-temperature control station 4 and the pre-temperature control device 4',
A trolley control panel U-2 that controls the setup trolley 10 is provided, and the control panels U-1 and U-2 receive output signals from the centralized control panel U and automatically control the setup trolley 10 and the like. I'm starting to do it.

Conveyance Cart (Figs. 2 and 3) The conveyance car 20 has a plurality of conveyance rollers 201 arranged in parallel on its upper surface, a sprocket 202 is provided at one end of each conveyance roller 201, and these conveyance rollers 201 are hydraulically operated. The motor 204 rotates in both forward and reverse directions. In the figure, 2
06 is a chain, and this chain 206 is stretched between the sprocket 202 and the hydraulic motor 204.

The transport vehicle 20 runs on rails 22 shown in FIG. 1, and the drive source for the wheels 208 is a hydraulic motor 210. Both hydraulic motors 2 above
04, 210 is operated by selection operation of the operation switch 212. In the figure, 214 is a reel for electric wire.

Rotating reversing machine (FIGS. 4 and 5) The rotary reversing machine 30 has a frame 301 whose outer surface 301a is an arcuate surface, the frame 301 is rotatable about the center O, and the hydraulic motor 30
Rotationally driven by 2. Code 303 in Figure 4
is a chain, and this chain 303 links the hydraulic motor 302 and the frame 301.

Two protrusions 304 are provided on the outer surface 301a of the frame 301 at an interval of 90 degrees, and the protrusions 304 are connected to a stopper 308 provided on the base 306.
Accordingly, the rotation range of the frame 301 is 90 degrees. Stopper 308 is cylinder 3
10 has become more frequent. The frame 301 is provided with two mold mounting surfaces 314, one mold mounting surface 314 and the other mold mounting surface 31.
The included angle with 4 is 90 degrees. Each mold placement surface 314 is formed by a plurality of short conveyance rollers 316 and a long conveyance roller 318. These conveyance rollers 316 are rotatable. On the other hand, a long conveyance roller 318
is adapted to be rotated in both forward and reverse directions by a hydraulic motor 320. In the figure, 322 is a chain, and this chain 322 is a long conveyor roller 3.
18 and the hydraulic motor 320.

The rotary reversing machine 30 is further provided with a detection means 325 for detecting the width of the mounted mold M (the length in the direction in which the fixed mold M-a and the movable mold M-b are lined up). There is. In the embodiment, this detection means 325 is composed of a plurality of proximity switches 325 (see FIG. 5). This proximity switch 325 is
It detects the position of the mounting plate on the side far from the movable mold M-b of the fixed mold M-a, and the mold M used
They are provided in a number that corresponds to the type of width. That is, the wider the mold M is, the more the proximity switch 325 on the upper side in FIG. It is now being detected. Of course, to detect the width of the mold M, various types of switches or sensors such as a phototube type or a contact type can be used as appropriate.

Setup trolley (FIGS. 6 to 12) The setup trolley 10 includes a frame 102, two tables 106 that run guided by rails 104 laid on the frame 102, and each table 1.
06 and the frame 10
2, and a trolley clamp means 110 for fixing the position of the setup trolley 10. There is.
In FIG. 6, 112 is a wheel, and the wheel 112 is driven by a hydraulic motor 114.

As shown in FIG.
16 is capable of swinging around a rotation axis 118,
Each of the clamp arms 116 can take an operating position (FIG. 7, solid line) in which both clamp arms 116 sandwich the positioning protrusion 14, and a non-operating position (FIG. 7, broken line) in which both clamp arms 116 are expanded, respectively, by the hydraulic cylinders 120. It is like that. The positioning protrusion 14 is provided on the floor of each station, and the setup cart 10 is positioned by the positioning protrusion 14 and the clamping means 110. The stop position of this setup cart 10 is based on the fixed mold.

The two tables 106 disposed on the frame 102 are connected by a connecting road 121 and run together on the frame 102, and their driving source is a hydraulic motor (not shown). This hydraulic motor is linked to the table 106 via a power transmission mechanism consisting of gears and racks.

On the frame 102, stoppers 122 are fixedly installed at both ends in the front-rear direction, and two movable stoppers 124 are provided at the center in the front-rear direction.
6, it is raised and lowered between an operating position and a non-operating position.

As shown in FIG. 8, the table 106 has a short conveyance roller 128 rotatably disposed at its front end (end on the side of the rotary reversing machine 30), and a long conveyance roller 130 at its rear end. It is arranged so that it can rotate freely. A plurality of these conveyance rollers 128, 130 are arranged in parallel in the axial direction, and the conveyance rollers 128, 130 are
30 forms a mold mounting surface, the short roller 128 receives the fixed mold M-a, and the long roller 130 receives the movable mold M-b.

The above-mentioned hook 108 is connected to these conveyor rollers 128.
The hook 108 is disposed between the handle 108 and the conveyor roller 130, and the mold is transferred by the hook 108. That is, the foot 108 is attached to the slide table 1 as shown in FIGS. 9 to 11.
having two hooks 134 provided on 32;
Each hook 134 is configured to be able to take an operating position in which it engages with an engagement rod 8 provided on the mold M and a non-operation position in which it releases the engagement rod 8 by means of a hydraulic cylinder 136. ing. The slide table 132 is movable while being guided by a guide rail 138 extending in the width direction, and the slide table 132 is driven by a hydraulic motor 14.
0. This is done by a screw screw 142. On the other hand, the guide rail 138 that guides the slide table 132 is provided with a rack 144 on its lower surface, as shown in FIG.
A second hydraulic motor 146 allows the setup cart 10 to move in the width direction. As a result, the footer 108 is made to extend in the width direction of the setup cart 10 under a two-stage stroke due to the combination of the guide rail 138 and the slide table 132, which are movable together, and as will be described later. It is used to transfer the mold M between the setup cart 10 and the pre-temperature control station 4 and between the stocker 6.

Horizontal injection molding machine (Fig. 1, Fig. 13, Fig. 14) The horizontal injection molding machine 15 has a fixed die plate 15.
2 and a movable die plate 154, in which the fixed die plate 152 is disposed on the rotary reversing machine 30 side (left side when facing the drawing), and the movable die plate 154 is disposed on the opposite side from the rotary reversing machine 30 (on the left side when facing the drawing). Fixed die plate 1
A fixed die M-a is attached to the die plate 52, and a movable die M-b is attached to the movable die plate 154. The horizontal injection molding machine 15 includes
Further, between the fixed die plate 152 and the movable die plate 154, as shown in FIG. a and the movable mold M-b. A mold conveying pusher 158 is disposed between the conveying rollers 156 in each example.

The mold conveyance pusher 158 is shown in FIG.
As shown in FIG. 4, a guide rail 160 extending in the row direction of the conveyance rollers 156, a hook 162 that moves while being guided by the guide rail 160, and a belt-shaped pusher that is connected to the hook 162 and moves the hook 162. (not shown), a reel 164 that is provided at one end of the guide rail 160, that is, the end opposite to the setup cart 10, and winds the band-shaped pusher, and a hydraulic motor 166 that rotationally drives the reel 164. ing. On the other hand, an intermediate stand 40 is disposed in the gap between the horizontal injection molding machine 15 and the setup cart 10, and a conveyance roller 402 is rotatably provided on the intermediate stand 40.
An extension guide rail 404 is provided so that the hook 162 of the mold conveying pusher 158 can be moved up to the extension guide rail 404. As a result, the pusher 158 for transporting the mold is used as a means for carrying the mold M into or out of the horizontal injection molding machine 15, and the pusher 158 for transporting the mold is used as a means for transporting the mold M into or out of the horizontal injection molding machine 15. The mold M is exchanged between the two, and the position of the table 106 at that time is based on the fixed mold M-a.

Mold Setup Change A setup change signal is output from the central control panel U to the preliminary temperature control control panel U-1 and the trolley control panel U-2, and a series of setup operations are started.

First, the setup cart 10 moves a mold M (hereinafter referred to as a new mold) to be newly set in the molding machine 15.
The new mold M is transferred from the stocker 6 to the table 106 of the setup truck 10 by the footer 108 mounted on the setup truck 10. In addition, in Stotsuka 6,
A conveyor roller (not shown) is rotatably disposed on the floor surface, and when transferring the mold M between the setup cart 10 and the stocker 6, the mold M moves on the conveyor roller. It is becoming possible to move.

Next, the setup cart 10 moves to the preliminary temperature control station 4.
The new mold M is transported to
The new mold M is set in the pre-temperature control station 4 by the hook 108 mounted on the
Preheating is performed at this preheating station 4.

When the preheating of this new mold M is completed, the footer 108 mounted on the setup trolley 10 again
The new mold M is transferred from the pre-temperature control station 4 to the setup trolley 10 and transported to the molding machine 15.

When the setup trolley 10 arrives at the molding machine 15, the mold M in the molding machine 15 (hereinafter referred to as the old mold) is moved to the setup trolley by a hook 162 attached to the molding machine 15. The table 106 is pushed out to one of the 10 vacant tables. After this old mold is loaded on the table 106, the table 106 moves on the setup cart 10, and preparations are made to set the new mold M in the molding machine 15. Then table 10
The new mold M loaded on the molding machine 6 is transferred to the molding machine 15 by a hook 162 attached to the molding machine 15.
and set in the molding machine 15,
This completes a series of setup changes.

The old mold M loaded on the setup truck 10 is transported by the setup truck 10 and stored in an empty stocker 6, or if maintenance is required, it is transported from the molding machine automatic operation area C. The mold tool is transported to the maintenance area A.

Mold transfer between mold tool maintenance area A and molding machine automatic operation area C When the above-mentioned old mold requires maintenance, the old mold M is transported to the rotation reversing machine 30 by the setup trolley 10. be done.

Old mold M from setup trolley 10 to rotary reversing machine 30
The transfer is performed using the hook 108 mounted on the setup cart 10 and the long roller 31 of the rotary reversing machine 30.
This is done in cooperation with the rotary drive of 8. At this time, the rotary reversing machine 30 determines whether the mold requiring maintenance is the fixed mold M-a or the movable mold M-a.
The mold mounting surface 314 that receives the old mold M is selected in advance depending on whether the old mold M is received, and the mold mounting surface 314 is set before receiving the old mold M.

In the rotary reversing machine 30, the old molds M received side by side from the setup trolley 10 are reversed by 90 degrees.
A posture change is performed in which the fixed mold M-a and the movable mold M-b are placed in an up-down state. In the old mold M after the attitude change, those requiring maintenance will be located on top.

After the attitude change is performed by the rotary reversing machine 30 in this way, the old mold M is transferred from the rotary reversing machine 30 to the transport vehicle 20 by using the long roller 318 of the rotary reversing machine 30 and the roller 201 of the transport vehicle 20. This is done by rotational drive with. The old mold M placed on the carrier 20 is transported by the carrier 20 to the crane yard D, where necessary maintenance is performed.

When transporting the mold M after maintenance is completed to the automatic operation area C of the molding machine, the above case is reversed. In this case, when transporting the mold M from the reversing machine 30 to the setup cart 10 is table 106
The position is adjusted.

Below, adjustment of the receiving position of the setup cart 10 (table 106) for receiving the mold M from the rotary reversing machine 30 will be explained with reference to FIG. 15. In FIG. 15, (a) shows the side surface of the rotary reversing machine 30 when the molds M are in a vertically arranged position, and (b) shows the side surface of the rotary reversing machine 30 when the molds M are in a horizontally arranged position after being rotated 90 degrees from the state in (a). (c) shows the plane of the rotary reversing machine 30 shown in (b) above, and (d) shows the setup cart 10 when receiving the mold M with the small width l1. (e) schematically shows the plane of the setup cart 10 when receiving the mold M having the large width l2. In this receiving position, frame 1
As shown by X1, the position of 02 is constant regardless of the width of the mold M, and the actual receiving position of the mold M is changed by adjusting the position of the table 106.

In other words, when the width is small such as l1, compared to when the width is large such as l2,
Table 106 is positioned relatively to the right in FIG. As a result, table 106
The distance t from the left end surface of FIG.
Reception to the setup cart 10 is performed based on -a. Then, Δl corresponding to the difference between the widths l1 and l2 of the mold M becomes the difference in the position of the table 106.
Of course, the position adjustment of the table 106 according to the difference in the width of the mold M described above is performed by driving the table 106 by the control unit U in response to the detection of the width of the mold M by the detection means (proximity switch) 325. This is done by controlling means.

(Effects of the Invention) As is clear from the above, the present invention has the following advantages:
Regardless of the width of the transfer, the molds can always be received from the rotary reversing machine at the correct position relative to the setup trolley, and placed side by side on the setup trolley with the fixed mold as a reference. This is extremely suitable for carrying the mold into the laterally forming machine.

[Brief explanation of drawings]

Figure 1 is an explanatory layout diagram showing the layout of the molding equipment, Figures 2 and 3 are diagrams showing the transport cart, Figure 4
Figure 5 is a diagram showing the rotary reversing machine, Figure 6 is a side view of the setup truck, Figure 7 is an enlarged view of the positioning clamp means provided on the setup truck, and Figures 8 to 12. are diagrams showing the slide table and foot provided on the table of the setup trolley, Figure 13, Figure 1.
FIG. 4 is a diagram showing a hook provided at the lower part of the mold mounting space of a horizontal injection molding machine, and FIG. 15 is an explanatory diagram of the operation in the embodiment. 10: Setup trolley, 15: Horizontal injection molding machine, 3
0: Rotary reflector, 325: Mold width detection means (proximity switch), A: Mold tool maintenance area, C:
Molding machine automatic operation area, M: mold, M-a: fixed mold, M-b: movable mold.

Claims (1)

[Scope of Claims] 1. Mounted as described above in a horizontal molding machine in which the mold is opened and closed by moving the movable die plate to which the movable mold is attached laterally relative to the fixed die plate to which the fixed die is attached. In the attitude changing and conveying device for the molds to be installed, the molds installed in the horizontal injection molding machine are rotated with the movable mold as a reference from a vertical position in which the fixed molds are stacked one above the other with the fixed molds on top. a rotating and reversing machine that changes its posture to a side-by-side position; and the fixed mold and the movable mold are placed side by side with respect to the fixed mold, and there is a space between the horizontal molding machine and the rotary and reversible machine. a setup trolley that travels on the rotary reversing machine; a detecting means that is provided on the rotary reversing machine and detects the width of the molds placed on the rotary reversing machine in the alignment direction; A mold attitude changing and conveying device for a horizontal molding machine, comprising: a receiving position changing means for changing a mold receiving position of the setup cart with respect to a rotary reversing machine.