JPH0144174Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a 180-degree reversible die spotting press.

(Prior art and its problems) As a means of finishing and repairing molds for various molding and processing such as metals and resins,
A 180-degree reversible die spotting press has been known for some time, but in conventional presses of this type, the press body has a crown that connects the bed and side frames, and an end fulcrum type tilting press is used. Equipped with a rotating table, a transfer rail at the same level as the bed is provided on the front of the press body, and a moving bolster is movable between them.A set of upper and lower molds is placed on the moving bolster, and the moving Pulling the bolster into the bed and lowering the tilting table to pull up the upper mold, then lowering it to perform mold matching, then raising and reversing the tilting table to position the upper mold upward on the bed, The lower molds were lined up on a transfer rail and necessary operations such as polishing and grinding were performed. However, with this structure, one press machine could only fit and finish one set of molds, resulting in poor work efficiency.

As a countermeasure for this, transfer rails are installed on the front and rear sides of the press body, two sets of moving bolsters are placed on each of these rails, and a mold is placed on each set of moving bolsters. There is a known method in which one set of molds is matched and another set of molds is used for finishing work on a transfer rail.

However, with this structure, regardless of whether the mold is a so-called single-acting mold consisting of an upper mold and a lower mold, one mold may be a double-acting mold, for example, consisting of a punch, a die (including a hydraulic dome), and a crease presser. In such cases, there is a problem that it is not possible to efficiently alternately match the double-acting type and the single-acting type, perform finishing work, or easily separate them in parallel.

(Means for solving the problems) This invention was devised through research in order to solve the problems of the conventional methods as mentioned above. We offer practical 180-degree reversible die spotting presses that can efficiently match not only single-acting types but also single-acting and double-acting types, as well as finishing, repairing, separating, and assembling. It's about doing.

For this purpose, the present invention includes a main body provided with a bed and a pair of left and right uprights, a feeding path extending to the front and rear surfaces of the main body, two movable tables movable between the bed and the feeding path, Two movable adapter tables, at least one of which is formed with a window hole, are paired with the movable table, and are provided between the uprights of the main body, which can be raised and lowered, and can be rotated 180 degrees with the center as a fulcrum, and the back and an inversion table equipped with an internal mold elevating mechanism that can fit into the hole formed in the bed.

(Example) Examples of the present invention will be described below with reference to the accompanying drawings.

Figures 1 to 1 show an embodiment of a 180-degree reversible die spotting press according to the present invention, in which 1 is a main body, a bed 2 and a pair of gate-shaped uprights erected on the left and right sides of the bed 2. It consists of 3,3.

4 and 4' are feed paths extending to the front side and the rear side of the main body 1, and one set of parallel rails 4, respectively.
It consists of 1,41. 5a and 5b are the feed path 4,
4', each of the movable tables 5a, 5b has wheels 51, 51 in contact with rails 41, 41, and can be self-propelled by drive mechanisms 52, 52 consisting of motors, chains, etc. It's getting old.

6a and 6b are adapter tables, which have outer rails 42 and 42 parallel to the rails 41 and 41;
It is arranged on the top so that it can move freely in the front and rear directions. This moving mechanism consists of an outer rail 4 as shown in FIGS. 1 and 2.
Sprocket 4 with one side on the drive side at 2 and 42
3 and 43, a chain 44 is wound around them, and both ends of the chain are fixed to the front and rear surfaces of the adapter plate. Alternatively, as shown in FIG. 8, the adapter plates 6a and 6b are connected to the moving table 5a. , 5b for relative movement only in the height direction. The latter has the advantage of simplifying the drive mechanism. and,
At least one of the adapter tables 6a and 6b has a window hole 60 formed through its thickness through which an inner mold C, which will be described later, can be inserted and retracted.

Reference numeral 7 denotes an inversion table, which is arranged between the left and right uprights 3 and 3 so as to face the bed 2, and which can be raised and lowered freely and can be turned from a horizontal state near the upper limit position.
It can be rotated 180 degrees.

Specifically, the inversion table 7 has side walls 71, 71 on both sides, and one end of the support shafts 10, 10 is fixed to the widthwise center of these side walls 71, 71.
These support shafts 10, 10 extend to slide frames 11, 11 located in vertical spaces 30, 30 of each upright 3, 3, and are supported by bearings 12, 12 as shown in FIGS. 5 and 7.

The slide frames 11, 11 are raised and lowered along the vertical spaces 30, 30 by a suitable lifting mechanism 13. In the embodiment shown in FIGS. 1 to 3, a pair of hydraulic cylinders 130, 130 are used.
This is erected above the bed or upright, and the piston rod 131 is connected to the slide frames 11, 11.

Instead, as shown in FIG. 4a, screw shafts 132, 132 are installed upright on the uprights 3, 3,
The slide frames 11, 11 may be provided with female screw bodies 133, 133 that are screwed together with the screw shafts, and the screw shafts 132, 132 may be rotated synchronously by a common drive shaft 134 passing through the bevel gear and the bed.

Also, as shown in Fig. 4b, sprockets 135, 135' are provided on the uprights 3, 3 and the bed 2,
Slide the ends between these frames 11, 11
It is also possible to use a system in which a chain 136 connected above and below is suspended, and the sprockets 135, 135' are synchronously driven by a common drive shaft 134.

Further, although the reversing drive mechanism 14 for the reversing table 7 is optional, a gear is used in this embodiment. First, in the embodiments shown in FIGS.
A piston 142 is horizontally mounted in a direction intersecting the pinion 141, and a sliding cylinder 144 having an external rack 143 that meshes with the pinion 141 is disposed thereon, and the sliding cylinder 144 is not shown. It is moved along the piston 142 by oil supplied from the hydraulic circuit, and thereby the rack 143 rotates the support shafts 10, 10 and the reversing table 7 fixing them clockwise or counterclockwise via the pinion 141. ing.

In the embodiment shown in FIG. 7, a worm wheel 145 is fitted onto the support shafts 10, 10, and this
It is rotated by a motor (not shown). Of course, these may be bevel gears.

The reversing table 7 includes an adapter table 6a,
Known clamper 1 for removably fixing 6b
5 and 15 are provided, and a mold lifting mechanism 9 for the inner mold is provided closer to the inside.

Figure 9 a, b and Figure 10 a, b show the mold lifting mechanism 9.
This example includes a window hole 16 penetrating through the thickness direction of the reversing table 7, a support stand 17 large enough to enter and retract into the window hole 16, and a hydraulic cylinder 18 that raises and lowers the support stand 17 toward the window hole 16. Inner clampers 19, 19 for removably fixing the inner mold are disposed above the support base 17.

When the reversing table 7 is lowered, a hole 8 is provided in the bed 2 in order to accommodate the mold elevating mechanism 9. In order to smoothly move to 4, 4, lift mechanism 20, 20
is provided. This lift mechanism 20, 20
As shown in the figure, any structure may be used, such as a floating roller structure in which the cylinder 200 is the operating source, or a pin structure in which a sliding guide with a small coefficient of friction is provided at the upper end (not shown).

In addition, in FIG. 9a, a hydraulic cylinder 18 is fixed behind the reversing table 7 via a stay and a reaction frame. Figure 9b shows instead of this,
A hydraulic cylinder 18 is arranged symmetrically in parallel with the window hole of the reversing table 7, and a piston rod is connected to a bracket 171 protruding from both sides of the support base 17. A slide guide 161 is provided vertically at the corner of the window hole 16. This embodiment has the advantage that the height of the cylinder can be reduced.

Next, the state of use of the present invention will be explained.

The 180 degree reversible die spotting press of this invention has an inverting table 7 facing the bed 2.
However, the vertical space 30,3 of the left and right uprights 3,3
It is connected to the slide frames 11, 11 located at 0 by support shafts 10, 10, and the support shafts 10, 10 are connected to the center portion of the reversing table 7 in the width direction.
The upper part of the reversing table 7 is a free space without a crown.

Therefore, when the reversing drive mechanism 14, that is, the sliding cylinder 144 or the worm 146 in the illustrated example is operated with the reversing table 7 at the upper limit position, the support shafts in the slide frames 11, 11
0 and 10 rotate clockwise or counterclockwise, and thereby the reversing table 7, which is integrally connected to the support shafts 10 and 10, and the mold lifting mechanism 9 on the back are rotated at 180 degrees.
Reverse the degree. Since this reversal is a center reversal, the required space is small, and there is no obstacle on the ceiling such as a crown, so the press daylight can be lowered.

In this state, the lifting drive mechanism 13, that is, the hydraulic cylinders 130, 130, screw shafts 132, 132, or sprocket 13 in the illustrated example
5, 135' is activated, the left and right slide frames 11, 11 are lowered along the vertical spaces 30, 30 of the uprights 3, 3, so that the reversing table 7 is in a 180-degree inverted state, that is, the mold elevating mechanism. 9 remains on the lower side in the height direction and descends. Since the bed 2 has a hole 8 recessed therein, the mold elevating mechanism 9 is stored in the hole 8 when the mold is lowered, and the reversing table 7 is placed on the bed 2.

Incidentally, the reversing table 7 can of course be raised and lowered without being reversed 180 degrees, and if the mold lifting mechanism 9 is activated during the lowering stroke or when the reversing table 7 has reached the lowering limit position, the hydraulic cylinder 18 This allows the support stand 17 to fit through the window hole 1 of the inversion table 7.
It is possible to provide a double-acting action that advances from 6 to 6.

A movable table 5a or 5b and an adapter table 6a or 6b are arranged as a set in the feed paths 4 and 4' extending on the front and rear surfaces of the main body 1, respectively. moving table 5
a or 5b and the adapter table 6a or 6b,
Each adapter table 6a or 6b is moved onto the bed 2 either singly or in a connected manner by a moving mechanism, and each adapter table 6a or 6b is automatically fixed by clampers 15, 15 while in contact with the reversing table 7, and the fixation is released. be done.

The above are the basic operations of the present invention, including the lifting, lowering and reversing of the reversing table 7, the movement of the movable tables 5a, 5b and the adapter tables 6a, 6b, and the selection of starting and stopping of the mold lifting mechanism 9 attached to the reversing table 7. This makes it possible to perform tasks such as fitting and finishing two sets of molds, separating them, and assembling them alternately and efficiently.

In other words, let us take as an example the case of finishing a double-acting type A consisting of a die a, an outer die a' such as a plate holder, and an inner die a'' such as a punch, and a single-acting type B consisting of a die b and a punch b'. To explain, first, as shown in FIG.
Place the combined double-acting type A and single-acting type B on b. At this time, for the double-acting type A, it is necessary to select the movable table 5a that is paired with the adapter plate 6a having the window hole 60.

In this state, the reversing table 7, which is at the upper limit position, is then reversed 180 degrees and lowered to the lower limit position.
As a result, the reversing table 7 stands by on the bed side with its base facing upward. Therefore, next, the lift mechanisms 20, 20 are operated and the adapter table 6 is
When the adapter table 6a is moved into the main body 1, the adapter table 6a is placed on the reversing table 7 and fixed by the clampers 15, 15. In this state, the inversion table 7 is raised again and is inverted 180 degrees at the upper limit position, while the movable table 5a is moved to the bed 2, so that the double-acting type A is placed inside the main body.

Then, the inversion table 7 is lowered without being inverted. At this time, the support base 16 of the mold lifting mechanism 9 is moved backward by the hydraulic cylinder 18, and as the reversing table 7 is lowered, the inner mold a'' is inserted into the window holes 60, 16 of the adapter table 6a and the reversing table 7 from the base side. It is inserted.And,
When the adapter table 6a comes into contact with the outer mold a', it is fixed to the adapter table 6a. This fixing may be accomplished by known means such as notches and T-bolts. By operating the inner clampers 19, 19 while fixing the adapter table 6a, the inner mold a'' is fixed to the support base 17.

Next, by raising the reversing table 7, the outer mold
a' and the inner die a'' are separated from the die a. This is the state shown in FIG.
is lowered, and at the same time, the mold elevating mechanism 9 is operated to advance the support base 17 along the window hole 16 of the reversing table 7, thereby performing mold matching with the die a.

Next, in order to perform finishing, the movable table 5a is sent out from inside the main body 1 to the feeding path 4, and then the first
The inversion table 7 is inverted 180 degrees at the raised position as shown by arrow 1 in Figure 1c. As a result, the outer type a′ and the inner type
a'' is reversed by 180 degrees, and in this state, if the reversing table 7 is lowered as shown by the arrow 2, the reversing table 7 will come to rest with the mold elevating mechanism 9 stored in the hole 8 of the bed 2.

In this state, if the mold lifting mechanism 9 is operated as shown by the arrow 3, the inner mold fixed to the support base 17 will be removed.
a' sinks below the level of the adapter table 7, so if the clampers 19, 19 are then moved and the lift mechanisms 20, 20 are activated, the adapter table 6
a becomes movable and is sent out from the main body 1 to the feeding path 4 as shown by the arrow 4 by operating the moving mechanism. In this state, if the mold lifting/lowering mechanism 9 is operated to the rising side, the inner mold a'' will be moved through the window hole 16 of the reversing table 7.
It protrudes from the body into the free space within the body.

As a result of the above operations, the die a, the outer mold a', and the inner mold a'' are separated and arranged in parallel on the same plane as shown in Fig. 11d.The separated inner mold a'' is then finished as it is. Although it is good, single acting type B and alternating type combination,
In order to increase the efficiency of finishing, it is sufficient to use an overhead crane or the like to take out the inner mold a'' and move it to the outside. In this case, the work is extremely easy because there is a free space above the reversing table 7. .Instead, it may be combined with the outer mold a' again and sent out to the feeding path.

To match single-acting type B, double-acting type A
In this case, the mold elevating mechanism 9 is activated and the same process as described above is followed. That is, the adapter table 6a is pulled into the main body and fixed on the reversing table 7, and then the reversing table 7 is raised and the moving table is moved. 5b into the main body, then the reversing table 7 is lowered to fix the punch b' to the adapter table 6b, and then the reversing table 7 is raised and lowered.

When finishing, move the movable table 5b to the feed path 4', invert the reversing table 7 at the upper limit position and then lower it, release the clamp, and move the adapter table 6b to the feed path 4'. The punch b' and the die b are now aligned on the same plane. To re-align double-acting type A while finishing this single-acting type B,
All you have to do is follow the process in reverse to that described above.

It goes without saying that the present invention can alternately match and finish the two sets of single-acting type B and single-acting type B', and this is schematically shown in Figures 12a and 12b. 1st
Figure 2 a shows the type matching for single-acting type B.
B' is currently being finished,
FIG. 12b shows a state in which the single-acting die B is being finished and the single-acting die B' is being matched after finishing.

The above-mentioned method is only one example of how to use the press of the present invention, and it goes without saying that various other operations and operating methods can be employed. In addition to being suitable for use in the present invention and molds, it can also be used for separation and maintenance of various combination structures, equipment, equipment, etc. consisting of two or three members.

(Effects of the invention) According to the invention explained above, it is possible to efficiently perform work such as fitting and finishing two sets of molds even though it is a single press, and in particular, a single-acting press consisting of two members. An excellent effect can be obtained in that mold matching, finishing, and other operations of a double-acting mold consisting of a mold and three members can be performed easily and efficiently.

[Brief explanation of drawings]

Fig. 1 is a side view showing an embodiment of a 180-degree reversible die spotting press according to the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a front view thereof, and Figs. 4 a and b are An explanatory diagram showing another embodiment of the reversing table lifting mechanism, FIG. 5 is a partially cutaway side view showing an example of the reversing mechanism of the reversing table, FIG. 6 is a front view thereof, and FIG. 7 is a diagram showing another reversing mechanism. 8 is a partial side view showing the connection between the moving table and the adapter plate, FIGS. 9a and 9b are vertical side views of the reversing table, and FIGS. 10a and 10b are partial plan views thereof. Figures 11 a to d are explanatory diagrams showing the operation and state when matching and finishing a double-acting type to a single-acting type according to the present invention, and Figures 12 a, b
This is an explanatory diagram of the operation when two sets of single-acting molds are matched and finished according to the present invention. 1... Main body, 2... Bed, 3, 3... Upright, 4, 4'... Feeding path, 5a, 5b... Moving table, 6a, 6B... Adapter table, 7
...Reversing table, 8... Hole, 9... Mold elevating mechanism, 13... Elevating mechanism, 14... Inverting mechanism, 16
...Window hole.

Claims (1)

[Scope of utility model registration request] A main body 1 provided with a bed 2 and a pair of left and right uprights 3, 3, feeding paths 4, 4' extending to the front and rear surfaces of the main body 1, and two movable tables movable between the bed and the feeding path. 5a, 5b, two movable adapter tables 6a, 6b, which form a set with the movable tables 5a, 5b, and at least one of which has a window hole 60, and a movable adapter table 6a, 6b, which is movable up and down between the uprights of the main body 1 and whose center is This 180-degree reversible die spotting press is provided with an inverting table 7 which is provided as a fulcrum and can be freely reversible 180 degrees, and is equipped with a mold lifting mechanism 9 on the back that can be fitted into a hole 8 formed in the bed 2.