JPH0315223Y2 - - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a 180 degree turning machine for molds.

In mold factories, press factories, resin molding factories, etc., when performing setup and maintenance such as machining, moving, and replacing molds as processing means, or cleaning adhered working oil, machining, polishing, etc. In order to remove and clean the chips that have accumulated, it is necessary to turn the mold around 180 degrees.

However, as the size and shape of the processed products have increased, molds have become larger and heavier, weighing between 10 and 100 tons for the upper and lower molds.
Moreover, as is well known, the mold has no irregularities on the outside and has a smooth surface. Therefore, apart from horizontally transporting the mold, it is extremely difficult to turn the mold 180 degrees, and conventionally, there was no suitable tool, and this was done using a crane or chain block. However, this method requires time-consuming and laborious slinging work by a large number of people and close cooperation with the crane operator, which inevitably results in slow work. As a result, workability and efficiency are poor, and moreover, it is easy for the wire to slip during lifting or reversing, causing the expensive mold to fall and injuring itself or workers. There was a problem.

This invention was devised in view of the above-mentioned circumstances.It has a simple structure, does not require foundation work such as pit-drilling, and can be placed on the floor near press equipment, machining equipment, etc. Easily, quickly and safely flip a specially shaped mold 180 degrees, disassemble the mold,
The purpose of the present invention is to provide a dedicated reversing machine with a simple structure that can easily carry out work such as repair and cleaning of foreign objects.

In order to achieve this purpose, the present invention includes a pair of gate-shaped uprights erected on both the left and right sides of the bed installed on the base floor, and a pair of slide frames arranged on these uprights so that they can be raised and lowered by lifting means.
An inversion table having a mold attachment mechanism is disposed above the bed, the inversion table is supported by the slide table via shafts on both sides, and the shaft is rotated by a rotation means provided on the slide frame; Additionally, a fluid injection nozzle is provided in the bed.

Embodiments of the present invention will be described below with reference to the drawings.

Figures 1 to 16 show embodiments of the present invention. In the drawings, 1 is a bed placed on a base 2, and in this embodiment, as shown in Figure 2, hot water or steam is spouted out. An injection nozzle 33 for this purpose is arranged so as to be buried or retractable.

Reference numerals 4 and 4 denote a pair of uprights provided on the sides of the bed 1. Each upright 4, 4 has a gate shape, and the uprights 4, 4 are not connected by a crown or the like, and are a free space. It's summery.

Reference numeral 6 denotes an inversion table disposed between the uprights 4, which can be raised and lowered from a position close to the bed 1 to near the upper end of the uprights, and can also rotate within a range of 180° from a horizontal position.

1 to 9 show embodiments of the elevating means A of the reversing table 6, and FIGS. 1 to 3 show the case where a fluid pressure cylinder mechanism such as hydraulic pressure is used as the elevating means A (the first Embodiment), Figures 4 to 6 show a case (second embodiment) in which a rotating screw mechanism is used as the lifting means A, and Figures 7 to 9 show a case in which a chain drive mechanism is used as the lifting means A. A case (third example) is shown below.

In either embodiment, the reversing table 6 has shafts 61, 61 directly fixed to the central part of both sides.
Alternatively, it is connected to the slide frames 7, 7 via side plate parts 62, 62 fixed on both sides, and the slide frames 7, 7 are arranged in the vertical space of the uprights 4, 4, and can be moved up and down using the uprights as a guide. ing.

First, in the first embodiment, in order to drive up and down, push-up cylinders 8, 8 are vertically installed on the bed 1 corresponding to the sides or lower parts of the slide frames 7, 7, and the piston rods of these push-up cylinders 8, 8 are slid respectively. It is connected to frames 7, 7. Further, in order to synchronize the left and right slide frames 7, 7, a pair of tuning sprockets 9, 10 are provided on the sides of the uprights 4, 4 and bed 1, respectively, and a pair of tuning sprockets 9, 10 are provided between each pair of tuning sprockets 9, 10. A chain 11 is suspended, and its both ends are fixed to the upper and lower sides of slide frames 7, 7, and tuning sprockets 10, 10 on the bed side are connected by a tuning shaft 12. With this structure, even if the timing of the pressure oil flow deviates between the left and right push-up cylinders 8, 8, it will be automatically adjusted by the tuning sprockets 9, 10, chain 11, and tuning shaft 12, and the reversing table 6 will not tilt. Go up and down accurately.

In the second embodiment, in order to drive up and down, female threaded members 13, 13 are first fixed to the outside of slide frames 7, 7, and the female threaded members 13, 13 are
The screw shafts 14, 14 whose upper ends are supported by the uprights 4, 4 are screwed through. Inside the bed 1, there are bevel gears 16', 16' at the lower ends of the screw shafts 14, 14 at both ends.
A drive shaft 15 equipped with bevel gears 16, 16 that engage with the drive shaft 6' is horizontally mounted, and the drive shaft 15 is rotated by a drive source 17 having a sudden fall prevention function like a worm reducer with a motor.

In the third embodiment, in order to drive the reversing table 6 up and down, lifting sprockets 18 and 19 are provided on the outer upper parts of the uprights 4 and 4 and on the corresponding sides of the bed 1, respectively. A lifting chain 20 is suspended from 19, each end of which is connected to the upper and lower sides of the slide frames 7, 7, respectively, and the lifting sprocket 1 on the bed side is connected to the lifting chain 20.
9 and 19 are fixed to a drive shaft 21 horizontally suspended in the bed, and the drive shaft 21 is driven by a motor 22 with a worm reduction gear.

Next, FIGS. 10 to 13 show an embodiment of the means B for rotating the reversing table 6 by 180 degrees.
0 and 11 show the case where a rack pinion and a hydraulic cylinder are combined, and FIGS. 12 and 13 show the case where a reduction gear is used.

In either embodiment, the shafts 61, 61 of the reversing table 6 are supported by bearings 23, 23 passing through the slide frames 7, 7.
In the embodiments shown in FIGS. 10 and 11, a pinion 24 is provided between the shaft 61 in the slide frame 7.
At the same time, a piston 26 is horizontally fixed in a direction intersecting this pinion, and the piston 2
6 is provided with a sliding cylinder 25 having a rack 27 on the outside that engages with the pinion 24, and by supplying oil to the sliding cylinder 25, the cylinder is moved to the piston 2.
6, thereby causing the rack 27 to rotate the pinion 24 in clockwise and counterclockwise directions, and rotating the reversing table 6 via the shafts 61, 61 within a range until it is turned upside down. There is.

In addition, in the embodiments of FIGS. 12 and 13, the shaft 6
A worm wheel 29 is attached to the worm wheel 1, and a worm shaft 40 is horizontally mounted in a direction intersecting the worm wheel 29, and the worm shaft 40 is connected to a hydraulic motor or a geared motor (not shown) to drive the worm wheel 29, and the shaft 61 allows the reversing table 6 to be reversed by 180 degrees. Of course, in this embodiment, a bevel gear may be used instead of the worm wheel and worm.

The reversing table 6 has a plate shape, but in this embodiment, as shown in FIGS. 14 and 15, shaped steel 45 such as square pipes are assembled in parallel or in a lattice shape, and the shaped steel 45 is assembled on top of the shaped steel 45. A mounting block 46 with a T-groove 47 formed therein is welded, an arbitrary mounting member 50 such as a T-shaped bolt is arranged in the T-groove 47, and this is extended near the object W to be reversed, and a nut or other Fastener 51
The mold W for the purpose of reversal is fixed by this.

In other drawings, reference numeral 31 denotes a cover mounting member, which is provided on the front surface of the uprights 4, 4. 3
2 is a cover. The cover mounting member 31 may be a holder, a magnet, or the like that supports the beam at the upper end of the cover. 52 is a set cylinder for fixing the reversing table 6 to the slide frame.

Since the present invention has the above-mentioned configuration, the base 2 near various devices and equipment such as presses and processing machines
Install it with bed 1 at the top. If it is necessary to remove or clean the working oil adhering to the mold W, or remove or clean the chips accumulated inside the mold W, use a special cart or forklift as shown in Figure 16. The mold W is placed on the movable cart 3, moved to the bed position, and stopped.

On the other hand, the reversing table 6 is lowered while facing upward and is brought to rest on the bed 1 (FIG. 16a).
In the first embodiment, by removing hydraulic pressure from the push-up cylinders 8, 8, the slide frames 7, 7 are lowered by their own weight along the uprights 4, 4, and the shafts 61,
The reversing table 6 is lowered via 61. Second
In the embodiment, the drive shaft 15 is rotated by the drive source 17, the screw shafts 14, 14 are rotated by the bevel gears 16, 16', and the screw shafts 14, 14 are screwed into the screw shafts 14, 14. Frames 7, 7 are unloaded. In the third embodiment, the motor 2 with a worm reducer
2 rotates the drive shaft 21, and the elevating chain 20 lowers the slide frames 7, 7.

The mold W is attached to the reversing table 6 which is thus lowered and stationary. This method may be performed, for example, as shown in FIG. Next, the lifting means A is reversely driven to raise the reversing table 6 via the slide frames 7, 7. As a result, the mold W rises together with the reversing table 6 (FIG. 16b).

Next, when the reversing table 6 reaches the rising end, the rotating means B is activated to reverse the reversing table 6 downward (FIG. 16c). In the embodiment of FIG. 10, oil is supplied to the sliding cylinder 25 to move it along the piston 26;
The rack 27 integrated with the pinion 24 - shaft 61
is rotated to apply rotational force to the reversing table 6.
In the embodiment shown in FIG. 12, the worm wheel 29-shaft 61 is rotated by the worm shaft 40, and rotational force is applied to the reversing table 6.

In this way, the inversion table 6 is rotated 180 degrees while being supported by the slide frames 7, 7, so that the bottom surface 63 of the inversion table 6 faces the ceiling.
The mold W is in a downward state. In this state, necessary measures such as scraping off attached oil, removing chips, repairing, etc. may be performed on the mold W.

For example, when the treatment is to clean the mold W, the cover 32 is attached to the front and rear surfaces of the uprights 4, 4, as shown in FIG. Just spray it on the W mold surface.

These operations can be carried out extremely easily since there are no obstacles such as pillows on the bed 1, and equipment for the treatment can be loaded and unloaded freely. Moreover, in the inverted state shown in FIG. 16d, the inversion table 6 functions as a top plate and the bed 1 functions as a workbench, so that it is easy to apply force to the mold W and to spray high-pressure fluid. Then, when the treatment is finished, the mold W can be carried out again by performing the operation opposite to the above.

In addition, if the reversing table 6 is stopped in the middle of reversing,
It is also possible to take various measures in an oblique position.

Alternatively, it is also possible to stop with the T-groove 47 surface facing downward, leaving a predetermined space between the bed 1 and the bed 1, then rising, and at this position, inverting and lowering until the T-groove surface becomes downward. For this reason, it is necessary to reverse the single mold with the mold surface facing downward,
The upper mold of the upper and lower molds (the mold surface faces downward).
It is also possible to easily separate the upper mold and to turn the upper mold so that the mold surface faces upward for disassembly. In this case as well, after inversion, the inversion table 6 lands on the bed 1 and becomes a workbench, so it is stable, and since there is an open space above it, various treatments can be taken freely. .

According to the present invention as described above, a pair of gate-shaped uprights 4, 4 are erected only on the left and right sides of the bed 1 installed on the base floor, and a pair of slide frames 7, 7 are moved up and down on these uprights 4, 4. A reversing table 6 is disposed above the bed and has a mold attachment mechanism, and the reversing table 6 is pivotally supported by the slide tables 7 through shafts 61 on both sides. , the axis 6
1 and 61 are rotated by the rotating means B provided on the slide frames 7 and 7, so that the lifting and lowering and reversing of the reversing table 6 are independent, and the height level can be set as long as the rotation radius does not fit into the bed. However, the inversion table can be flipped 180 degrees. Moreover, there is only an inversion table 6 between the pair of right and left uprights 4, 4, and there is no crown (top plate) above it. Therefore, when the inversion table 6 is inverted 180 degrees or lowered without being inverted, the upper part can be made into a completely open space, and the inversion table 6 can be moved from the horizontal direction.
When tilted 90 degrees, both sides except for the thickness can be completely open space. Therefore, equipment and equipment necessary for maintenance, repair, cleaning, etc. can be freely brought in and out from above using an overhead crane, making it easy to use. Moreover, since the bed 1 is equipped with a fluid injection nozzle 33, the mold can be opened by simply attaching covers to the front and rear surfaces of the uprights 4, 4 while the mold is fixed on the reversing table 6 and facing downward. Excellent effects such as the ability to easily clean and wash the mold surface and remove chips can be obtained.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view showing an embodiment of a 180-degree turning machine for molds according to the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a side view thereof, and Fig. 4 is a side view of the machine according to the present invention. FIG. 5 is a plan view, FIG. 6 is a side view, and FIG. 7 is a front view showing another embodiment of the invention.
The figure is a front view showing another embodiment of the present invention, FIG. 8 is a plan view thereof, and FIG. 9 is a side view thereof.
Fig. 10 is a sectional view showing an example of the reversing mechanism;
The figure is a sectional view taken along the line X-X in Figure 10, Figure 12 is a sectional view showing another example of the reversing mechanism, and Figure 13 is a sectional view taken along the line X-X in Figure 10.
14 is a plan view showing an example of the reversing table according to the present invention; FIG. 15 is a partial sectional view showing the state of use thereof;
Figures 6a to 6d are explanatory diagrams showing step-by-step an example of how the present invention is used. 1... Bed, 2... Base, 4... Upright, 6... Reversing table, 7, 7... Slide frame, 61, 61... Axis, A... Lifting means, B
...180° rotation means, 33... injection nozzle.

Claims (1)

[Scope of utility model registration request] A pair of gate-shaped uprights 4, 4 are installed on the left and right sides of the bed 1 installed on the base floor, and a pair of slide frames 7, 7 are attached to these uprights 4, 4.
is arranged so as to be freely raised and lowered by a lifting means A, and an inversion table 6 having a mold attachment mechanism is arranged above the bed. The shafts 61, 61 are rotated by rotating means B provided on the slide frames 7, 7, and the bed 1
is a 180-degree mold reversal machine characterized by having a fluid injection nozzle 33 installed therein.