JPS5914020Y2 - Press loader device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a loader device for a press machine, and particularly relates to a loader device for a press machine that performs two steps of pressing simultaneously by operating a ram in one stroke. .

For press machines, various loader devices have been devised from the standpoint of ensuring worker safety and improving productivity, but they are complex and expensive in structure, and they cannot easily be installed on existing press machines in operation. In particular, press machines that perform two strokes of pressing at the same time by operating one stroke of the ram have a simple structure and can smoothly and reliably move the workpiece to the next step. There is no loader device that can supply to a predetermined position and can supply a high number of supplies per unit time.

The present invention eliminates the above-mentioned drawbacks in the loader device of a press machine that simultaneously performs two pressing steps by operating the ram in one stroke, and accurately and frequently moves the workpiece to the desired position for the next step. The object of the present invention is to provide a loader device that is simple and inexpensive in structure and can be easily installed in an existing press machine.

Hereinafter, the present invention will be described in detail based on an embodiment of the present invention shown in the drawings.

FIG. 1 is a side view showing the main parts of a pin clutch type press equipped with a loader device according to the present invention, and FIG. 2 is a schematic plan view showing the main parts.

In Figures 1 and 2, 1 is a ram, 2 is a bed, and 3
is the die set, and 4 is the first fixed to die set 3.
The die, 5 is the second die, 6 is the first punch fixed to the ram 1, 7 is the second punch, C is the workpiece,
D is a feed roller for the workpiece, and E is a belt for discharging the secondary workpiece B.

Reference numeral 8 denotes a vertical slide table, which slides in the longitudinal direction of the aircraft on a slide support frame 9 whose one end is fixed to the bed 2 via a support guide 9a that passes through the center of the vertical slide table 8. It is freely arranged.

A loader holder 10 is fixed to the upper part of the vertical slide table 8, and a base end portion of a flat plate-shaped vertical loader 11 is inserted and supported within the loader holder 10.

The tip 11a of the vertical loader 11 is formed in the same shape as the outer peripheral surface of the workpiece, and during steady operation, the vertical slide table 8, loader holder 10, and vertical loader 11 are integrated. slide in the directions of arrows A and A'.

If a load exceeding the set value is applied to the tip end 11a of the vertical loader 11, the vertical loader 11 inserted and supported within the loader holder 10 will slip, causing the vertical slide base 8 and the loader holder to slip. 10 moves in the direction of arrow A, but vertical loader 11 does not move forward and the limit switch (
(not shown) is activated, the pin clutch (not shown) is cut off via the air cylinder (not shown), and the various mechanisms of the feeding device are protected, and at the same time the press stops at the position where ram 1 is raised. do.

Reference numeral 12 denotes a horizontal slide table, on the upper surface of which a loader holder 10 is fixed, and inside the loader holder 10 there is a flat plate-shaped horizontal loader 1 with a [-shaped notch formed in the tip 13a.
The proximal end of No. 3 is inserted and supported.

The horizontal slide base 12 is slid in the direction of the arrow A, and when the vertical slide base 8 is moved in the direction of the arrow A, the horizontal slide base 12 is moved in the direction of the arrow A, and the vertical slide base 8 is slid in the direction of the arrow A.
When moving in the direction, the horizontal slide table 12 moves in the direction of the arrow '.

Also, a horizontal loader inserted and supported by the horizontal slide table 12
If a load exceeding the set value is applied to the tip 13a of the 13, the press machine will protect the various parts of the feeder and at the same time protect the various mechanisms of the feeder, as in the case where the horizontal loader 13 slips and the vertical loader 11 slips. will be stopped.

FIG. 3 is a vertical cross-sectional view showing the main parts taken along the line A-A in FIG. 1, and with reference to FIGS. A first die 4 and a second die 5 are fixed on the die set 3.

The first die 4 and the second die 5 are arranged at appropriate intervals on a straight line The vertical loader 11 has a width W1 that is approximately equal to the outer diameter of the primary workpiece A.
A vertical guide groove 14 is formed which is slightly deeper than the thickness of , and the center line of the vertical guide groove 14 and the center of the first die 4 are aligned.

The tip of the vertical guide groove 14 is connected to the guide hole 5 of the second die 5.
a, and further passes through the upper surface of the second die 5,
A horizontal guide groove 15 is formed in a direction perpendicular to the vertical guide groove 14 .

The lower surface 14a of the vertical guide groove 14 substantially matches the upper surface of the horizontal guide groove 15 in height, and furthermore, the lower surface 15a of the horizontal guide groove 15
is the same height as the top surface of the second die 5.

Further, the width W2 of the lateral guide groove 15 is approximately equal to the diameter of the workpiece B pressed by the second die 5, and approximately equal to the thickness of the lateral loader 13 that slides along the upper surface of the second die. They have the same depth, and the center line Y-Y of the horizontal guide groove 15 coincides with the center of the second die 5.

In FIG. 3, 7' is a punch guide body which, together with the guide of the second punch 7, restricts the movement of the primary workpiece A in the upward and lateral directions.

Although this example is described assuming that the secondary workpiece A and the secondary workpiece B are circular, the workpiece and shape as well as the cross-sectional shape of the guide groove can be arbitrarily selected. Of course.

Next, the operation of the loader device according to the present invention will be explained.

FIG. 4 is a schematic diagram showing the transmission system of the loader device according to the present invention. Referring to FIGS.
is fixed, and one end of a connecting rod 18 is fixed to the eccentric cam 17.

The rotation of the eccentric cam 17 causes the connecting rod 18 to move up and down, and this movement causes the arms 19a, 19b, 19C, and 19d to move up and down.

19 e and rotation axes 20 a and 20 b to the horizontal slide table 12 , and the horizontal slide table 12 has an arrow opening.

It is slid towards the mouth.

On the other hand, the vertical slide table 8 includes an arm 19f with one end fixed to the rotation shaft 20a, a connecting rod 21, arms 19g, 19h,
and is slid in the directions of arrows A and A' via the rotation shaft 20C.

The arrows in Fig. 4 indicate the outline of the operation, and the connecting rod 1
The operation of each arm, etc. when the connecting rod 8 is lowered is shown by a solid line arrow, and the operation when the connecting rod 18 is raised is shown by a dotted line arrow.

In addition, the sliding width of the vertical slide table 8 and the horizontal slide table 12, the forward and backward start positions, and the synchronization with the ram 1 are determined by the arm 1.
9 Adjustment of the length of C, 19e and arms 19g, 19h (
(not shown) and by adjusting the fixing position of the eccentric cam 17 and the connecting rod 18.

Referring to FIGS. 5a-e and 3, FIG.
The primary workpiece A' that has been primarily processed by the punch 6 is dropped into the vertical guide groove 14 below the first die 4, and the tip of the vertical loader 11 immediately after the first punch 6 starts moving upward. 11a indicates the position of vertical loader-1
1 starts sliding in the direction of arrow A.

When the vertical loader 11 starts sliding in the direction A, the tip 13a of the horizontal loader 13 also moves in the direction of the arrow in synchronization with this.

Next, as shown in FIG. 5, the next workpiece A' is moved along the vertical guide groove 14 to the innermost part thereof by the tip of the vertical loader 11.

At this time, the horizontal loader 13 is in a position to cover the top surface of the second die 5, and the top surface 13b of the horizontal loader 13 is approximately on the same plane as the bottom surface 14a of the vertical guide groove 14, or is in a position slightly lower than the bottom surface 14a of the vertical guide groove 14. The primary workpiece A' pushed in from there is placed on the upper surface 13b of the horizontal loader 13.

Moreover, even if the horizontal loader 13 is moving in the direction of the arrow,
It comes into contact with the inner circumferential surface of the lower end of the second punch guide body 7' and is not carried out from above the second die 5.

From this state, the vertical loader 11 and the horizontal loader 13
The vehicle begins to retreat to the position shown in Figure C, and at the same time, the ram 1 also begins to descend.

The primary workpiece A' placed on the upper surface 13b of the horizontal loader 13 that is moving backward slides on the upper surface 13b of the horizontal loader 13 while contacting the inner peripheral surface of the lower end of the second punch guide body 7'. As soon as the tip 13a of the horizontal loader 13 leaves the upper surface of the second die 5, it falls into the guide hole 5a of the second die 5.

At this point, the tip 11a of the vertical loader 11 has already retreated from below the first die 4 to the front side, and the ram 1
By the second operation, a second secondary workpiece A// is formed by the first punch 6 and is dropped into the vertical guide groove 14.

Also, at the same time as the second primary workpiece A// is formed, the primary workpiece A' set on the second die 5 is moved to the second punch 7.
The secondary workpiece B' is subjected to secondary processing by the second die 5.
left on top.

This state is shown in FIG.
13, and the -th secondary workpiece B
' is pushed outward by the tip 13a of the horizontal loader 13, and as shown in FIG. They are held and transported to the next process in an orderly manner.

In the present invention, a vertical slide table 8 and a horizontal slide table 1
Although the sliding power of No. 2 is transmitted from the crankshaft 16, it goes without saying that drive shafts other than the crankshaft 16 may be transmitted from the upper and lower slide bodies of the press.

This invention uses a press loader in a press machine that simultaneously performs two press processes by operating one stroke of the ram 1.
The apparatus is configured as described above, and the first punch 6 is used to punch the first die 4.
The vertical guide groove 14
At the same time, the vertical loader 11 sliding in the guide groove 14 supplies the secondary workpiece B formed by the second punch 7 to the second die 5 side by sliding it in the horizontal guide groove 15. Then, by moving the horizontal loader 13 outward, the primary workpiece A placed on the upper surface of the loader 13 by the vertical loader 11 is Since the workpieces are dropped into two dies 5, even if the workpieces are extremely thin, the primary workpieces A and secondary workpieces B will not become clogged in the vertical guide grooves 14 and the horizontal guide grooves 15. The primary workpiece A can be continuously supplied and the secondary workpiece B can be discharged, which not only improves production capacity but also ensures the safety of workers and the protection of the mechanisms of each part of the press machine.

In particular, this is extremely practical in terms of ensuring the safety of workers, especially in the case of pin clutch type presses, which are extremely dangerous and have the characteristic that an emergency stop can only be made near the top dead center of the ram 1. It is.

Furthermore, in the present invention, the drive system of the vertical loader 11 and the horizontal loader 13 is not equipped with an air cylinder or the like, but is constructed mechanically by a link mechanism, so that when the loader is operated by an air cylinder or the like, In comparison, not only does it not require an air source for operation, it also allows the secondary workpiece A and secondary workpiece B to be accurately and reliably regulated to the desired positions, and it is possible to control the secondary workpiece A and the secondary workpiece B to the desired positions accurately and reliably, and also to avoid problems such as clogging. Efficient and highly accurate press processing becomes possible.

In addition, even if the workpiece becomes clogged, the loader 11
, 13 protects each part of the feeding device and at the same time prevents damage to the mold and the like.

This invention has succeeded in increasing the number of press operations to 75 to 85 times per minute during press processing of small parts, and has extremely high practical value in terms of high efficiency and high safety. be.

[Brief explanation of the drawing]

FIG. 1 is a side view showing the main parts of a pin clutch type press equipped with a loader device according to the present invention, and FIG. 2 is a schematic plan view showing the main parts. FIG. 3 is a longitudinal sectional view showing the main parts of the loader device;
FIG. 4 is a schematic diagram showing the transmission system. FIGS. 5a to 5e are explanatory views of the operation of the loader device according to the present invention. 1 is a ram, 2 is a bed, 3 is a die set, 4 is a first die, 5 is a second die, 6 is a first punch, 7 is a second punch, 8 is a vertical slide stand, 9 is a slide stand support frame, 10 is a loader holder, 11 is a vertical loader, 112 is a horizontal slide table, 13 is a horizontal loader, 114 is a vertical guide groove, 15 is a horizontal guide groove, A is a primary workpiece, and B is a secondary workpiece.

Claims (1)

[Scope of utility model registration request] In a press machine that simultaneously performs two steps of press working by operating one stroke of the ram 1, the tip is located below the first die 4 in the front-back direction of the machine body, and the tip of the second die 5 is connected to the guide hole 5 of the second die 5.
A vertical guide groove 14 that faces the direction a and receives the primary workpiece A from the first die 4 and guides the vertical loader 11, and a horizontal groove that slides with its upper surface 13b positioned slightly below the lower surface 14a of the vertical guide groove 14. A die that guides the rotor 13 and has a horizontal guide groove 15 whose center line passes through the center of the second die 5, is perpendicular to the vertical guide groove 14, and has a bottom surface 15a that coincides with the upper surface of the second die 5. During the set 3 and the upward stroke of the ram 1, the vertical loader 11 is slid in the direction in which the primary workpiece A is fed to the second tie 5, and during the downward stroke of the ram 1, the vertical loader 11 is slid to the bottom and outside of the first die 4. A vertical slide table 8 that is slid by the driving force of the ram 1 so that its tip 11 a retreats, and a ram 1
During the upward stroke of the ram 1, the horizontal loader 13 is slid in the direction of extruding the secondary workpiece B from the second die 5, and during the downward stroke of the ram 1, its tip 13a retreats to the outside of the second die 5. It consists of a horizontal slide table 12 that is slid by the driving force of the ram 1, and at the same time the horizontal slide table 12 pushes out the secondary workpiece B, the primary workpiece A pushed out by the vertical loader 11 is transferred to the horizontal loader 13. The primary workpiece A placed on the upper surface of the horizontal loader 13 is placed on the second horizontal loader 13 when the horizontal loader 13 retreats.
A press loader characterized in that it is fixedly placed in a die 5 and performs two presses continuously.
Device.