JPS5950929A - Material feeding device for press - Google Patents

Abstract

PURPOSE:To feed zigzag a material to be processed to a press with high accuracy and at high speed, by moving a vertically moving member integrally with a base member along a straight path. CONSTITUTION:In a feeding device, a vertically moving member 56 moving up and down for providing vertical movement to a lowr jaw 42 of a movable grip 14, bears a jaw holder 24, and is supported by a base member 20 reciprocating along the 1st straight path 18, and reciprocates integrally with the member 20 along the 1st straight path 18. Accordingly, rolls 54, of the lower jaw 42 supported by a guiding part part 38 of the jaw holder 24 which reciprocates on the base member 20 along the 2nd straight path 22, roll on the member 56 in its longitudinal direction with the reciprocating movement of the jaw holder 24 along the 2nd straight path.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a material feeding device for feeding a strip-shaped workpiece in a staggered manner to a press.

One of the conventional feeding devices of this type includes a movable grip that can move while holding the workpiece, and a movable grip that holds the workpiece in a fixed position while the grip releases the corrugated material. There is a material feeding device that includes a fixed grip that holds the material. According to this material supply device, there is no slippage between the workpiece and each grip, and material can be supplied to the press with high precision.

By the way, the J-resistant movable grip includes a base member supported on one frame and reciprocating along a first linear path toward the press, and a base member supported on the base and reciprocating along a first linear path toward the press.
Install a jaw holder that reciprocates every 7 days on a second straight path that is perpendicular to the first straight path. The upper jaw and the lower jaw with three downward movements are supported on the jaw holder to clamp the workpiece between them, and the workpiece held by the two jaws is supported on the jaw holder. The work material is fed into the press in a zigzag path due to the combined movement of the base member and the jaw boulder.

Conventionally, in the movable grip, the downward movement of the lower jaw is provided by a cylinder device. ing. However, it is difficult to operate the cylinder device at high speed in synchronization with the reciprocating motion of the base part and jaw holder, and for this reason, the conventional l'liJ lji-cho motion grip is not suitable for high-speed operation. It was inappropriate.

The vertical movement of the lower jaw is increased in speed in synchronization with the movement of the base part and the jaw holder.
A lifting member that engages with the lower jaw (C) is disposed below the base member, and the lifting member is moved up and down at a fixed position by a cam mechanism in order to give one downward movement to the lower jaw via the lifting member. Think about it.

However, since the lower jaw moves over a wide planar range without the base member and the moving body of the jaw holder, a large plate portion is required as the elevating member to cover this wide planar range. Therefore, the elevating member tends to be deflected in its central portion, and the movement stroke of the lower jaw (up and down) 111 cannot be maintained constant. This makes it difficult to clamp the material, resulting in a decrease in the accuracy of material feeding. Furthermore, it is not possible to vertically move the large elevating member at a high speed, so that the advantage of speeding up by the cam mechanism is reduced to a value <-r.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a material feeding device that can feed the processed material in a staggered manner to a press with high accuracy and high speed.

The present invention is a material supply device including a movable grip,
a base member in which the movable grip reciprocates along a first linear path toward the press; and a jaw holder that reciprocates on the base along a second linear path perpendicular to the first linear path. , an upper jaw supported by the jaw holder, a lower jaw that is movable in the vertical direction to clamp the workpiece in cooperation with the upper jaw, and a lower jaw that engages with the lower part of the lower jaw to give vertical movement to the lower jaw and that moves vertically. an elevating member movable in a direction along a longitudinal axis, the elevating member having a flattened surface disposed along a first linear path and engageable with an end of the elevating member to impart vertical movement to the elevating member; a vibrating shaft rotatably supported around the
a cam mechanism for vertically moving the elevating member by rotation of the shaft, and vibrating the shaft around the axis to cause the lower jaw to move up and down integrally with the cam mechanism; The lower jaw is supported so as to be movable in the vertical direction, and a roller is provided at the lower part of the lower jaw to slide on the elevating member for smooth movement of the jaw holder, and the base portion is provided at both ends of the elevating member. The vibrating shaft is characterized by being provided with a roller that slides on the flat surface of the vibrating shaft to ensure smooth movement.

According to the present invention, since the elevating member is movable integrally with the base member along the first linear path,
As the elevating member, a large plate-like member of various types (a bow-like member that does not easily bend) can be used to increase the movement area of the lower jaw. It is possible to maintain the downward stroke of 11 (7) at a constant level and to move the lower stroke at high speed (114 IJ 4). Item 1) The rollers provided in the lower jaw and the elevating section system enable the smooth movement of the jaw holder and the lower jaw. It is only possible to send a Chidori in the spirit world.

The features and features of the invention will become clearer from the following description of the illustrated embodiment.

In Figure 1, a paulownia material supplying device according to the present invention is schematically shown as No. 1 10 in the overall designation, and the material supplying device 1
Although not shown, a belt-shaped paulownia material to be processed is supplied to the press.

The front thread supply device @10 includes a frame 12 and the workpiece 4.
It includes a movable grip 14 and a fixed grip 16 for holding the J-shaped lever, and both grips 14 and 16 are supported on the frame 12.

The fixed grip 16 is similar to that in conventional material feeding devices, and is in a fixed position closer to the press than the movable grip 14, as is well known in the art.
The movable grip 14 is operated to grip the workpiece while releasing the clamping of the workpiece. It is preferable to use a cam mechanism as the actuating device for this fixed grip (
~death·.

The movable grip 14 has a pair of slides 18 extending toward the press and supported by the frame 12 at both ends.
The base part (shaft 20) that can be slid on the top, and the slide (shaft 1
The base member 2 extends perpendicularly to the direction of extension of the base member 2 at both ends.
The jaw holder 24 is provided with a jaw holder 24 capable of sliding a pair of slide shafts 22-L supported at 0.

An actuating rod F28 extending parallel to the slide shaft 18 from a first actuating device 26, similar to that of the conventional feeding device, is pivotally mounted on the base portion 20. The first actuating device 26 imparts reciprocating motion to the actuating rod 28 in the direction of its axis, as is well known in the art, thereby causing the base member 20 to move in the direction defined by the slide axis 18. It makes a reciprocating motion along the straight i child path of 1.

A guide rod O extending parallel to the slider I pa shaft 18 is supported by the jaw holder 24 .

The guide rod 1 is provided with a slider 101 at the end of an actuating rod 64 extending parallel to the slide 22 from the second actuating device 32 similar to that in the conventional feeding device.
The second actuating device 2 is operated in the same way as the conventional J:<I, I know.
11th line towards JJ, ', SJ! ! ! Give me that. Therefore, the jaw holder 24 can be moved back and forth along the first and second linear paths defined by the slide shaft 22 on the base member without interfering with the above-mentioned reciprocating movement of the base member 20. reactor.

Front part 141- of base part 20 and jaw holder 24
: The reciprocating motion is, as is well known, i
Synchronize -f to stagger feed the workpiece held in the jJ moving grip 14 to the MiJ press along the zigzag path 1'=
reactor. In order to synchronize the reciprocating motion at high speed, the first
and a second actuator 26. It is preferable to use a cam mechanism for the filter 2.

The base portion 20, as shown in FIG.
A slot-like elongated hole filter 6 extending along the second straight path (22) is provided in the center thereof.

The elongated hole filter 6 penetrates the base member 20 in the vertical direction.''
f'ru. A lower jaw guide portion 8 is provided in the center of the jaw holder 24, and the lower jaw guide portion 8 is inserted into the elongated hole 66, and the reciprocating movement of the jaw holder 24 allows the lower jaw guide portion 8 to be guided integrally with the main body. The part filter 8 reciprocates within the elongated hole 66. A pair of guide holes 40 are formed in the guide section 8 and extend vertically through the guide section, and an llt section 42a of the lower jaw 42 is slidably fitted into the guide holes. Moreover, above the lower jaw 42,
The upper jaw 44 is supported via a conventionally well-known elastic support W (not shown).

Each shaft portion 42 of the lower jaw 42. In the center of z,
A slit 46 extending in the longitudinal direction of the shaft portion is provided, and a support member 48 extending across the slit is supported by the guide portion 8. A spring seat 50 is fixed to the lower surface of the support member 48, and the spring seat 50 is in contact with the spring seat. The conditioned coil spring 52 applies a spring force to the lower jaw 42 in a downward direction, that is, in a direction away from the upper jaw 44.
reactor. A roller 54 is pivotally attached to the lower end of each shaft portion 42.

Each roller 54 has a portion that projects downwardly from the guide roller 8 and has a rotating yoke 154a along a first straight path.

11J An elevating member 56 in the form of a rod extending along the second linear path (22) is disposed below the base portion 22 to define the rolling surface of the roller 54.

The row of descending members 56 is fixed to the base member 20 and the base i,! Insert the shaft member 58 into the sliding position 15 degrees below. Therefore, the elevating member 56 is movable along the first linear path (18) integrally with the R-seat member 20 to engage the roller 54, and is capable of vertical movement with respect to the base member 20. It is.

Rollers 60 are pivotally attached to both ends of the lifting portion 56,
Each roller 60 has a rotation axis 60 along a second linear path (a second linear path).
It has a. The roller 60 has a first linear path (18
) can be transferred on a flat surface 62σ formed on a pair of vibrating shafts 62 disposed along the oscillating shafts 62. Each vibrating shaft 62 has a
At both ends it is supported in the frame via bearings 64 and is rotatable about its longitudinal axis. Associated with each vibrating shaft 62 is a pair of cam mechanisms 66 for vibrating the shaft 62 about its longitudinal axis.

As shown in FIGS. 6 and 4, the cam mechanism 66 is fixed to the shaft 62, has a swing Qi 168 that extends outward in the radial direction of the shaft, and has an upper end connected to the shaft through a ball joint 70. An arm member 72 is connected to the swing shaft 68 and extends perpendicularly to the swing shaft. A guide groove 78 is formed at the lower end of the arm member 72 to receive a sliding portion 76 rotatably fitted to the drive shaft 74 so as to be relatively slidable in the direction in which the arm member 72 extends. . As clearly shown in FIG. 4, a circular plate cam 80 is arranged adjacent to the sliding member 76 and rotates integrally with the drive M1+74. In addition, arm member 7
A roller 82 that engages with the circumferential surface of the plate cam 80 is installed at the center of the plate cam 2 via a pivot side 184.

The cam plate 8 is rotated by the rotation of the drive 111r 4QI+ 74.
The arm member 72 is provided with a cam follower slack roller 82 that engages with the circumferential surface of the cam plate when the cam plate rotates.
A reciprocating motion synchronized with the movement of the base portion old 20 and the jaw holder 24 in its longitudinal direction is provided. The reciprocating movement of the arm member 72 is guided by a J-lo slide member 76 that engages the guide groove 78 of the arm member.

This reciprocating movement of the arm member 72 causes a pair of vibration shafts 62 connected to the arm member via a ball joint 70 to
For example, create an oscillating motion in the opposite direction of the sword around one line on each longitudinal side. Due to this vibrating movement, each vibrating shaft 62 imparts an up-and-down movement to the lifting member 56 on which the roller is provided via the roller 60 that engages with the flat surface 62a of the shaft. As a result, the lower jaw 42 provided with the roller 54 that engages with the elevating member 56 is
44 to clamp the workpiece 1 between them, and in order to release the clamping, Ai moves in the vertical direction in the same manner as the base part 20 and the jaw holder 24 move. .

In the feeding device 610 according to the present invention, in order to give vertical movement to the movable grip 140 and the lower jaw 42, the lifting portion 56 that moves in the vertical direction supports the jaw holder 24 and moves along the first linear path (18). It is supported by a base member 2o that reciprocates along a first linear path (18), and reciprocates along a first linear path (18) integrally with the base member. Therefore, the roller 54 of the lower jaw 42 supported by the jaw bow fern 240 guide portion 8 that reciprocates along the second linear path (22) on the base 20 moves along the second linear path (22) of the jaw holder 24. ), and rolls on the elevating member 56 in its longitudinal direction relative to the elevating member 56.

In addition, as the elevating member 56, a rod-shaped member can be used in various ways without using a large plate-like part that covers the entire reciprocating plane range of the base member and the jaw holder. It is possible to prevent the vertical stroke of the lower jaw 42 from changing due to the deflection indicated by R11, and as a result, the lower jaw 42 can be moved up and down with a constant stroke.

Therefore, according to the present invention, the workpiece can be reliably held in the movable grip 14, and the weight of the elevating member can be reduced.
The flS material can be moved up and down at high speed and accurately.

Moreover, as the R-seat member 20 reciprocates as described above, the rollers 60 provided at both ends of the lifting member 56 move on the flat surface 62a of the vibrating shaft 62 (-1 and the jaw holder 24 reciprocates as described above). As the lower jaw 42 moves, the roller 54 provided at the lower part of the lower jaw 42 rolls on the lower part 56, so that the base portion 20 and the jaw holder 24
This does not disturb the smooth movement of the press, which allows the workpiece to be staggered into the press with high precision and high speed.

[Brief explanation of the drawing]

FIG. 1 is a plan view schematically showing the monthly fee supply device according to the present invention, and FIG. 2 is a sectional view taken along line II-II shown in FIG. FIG. 4 is a side view showing the cam mechanism according to the present invention, and FIG. 4 is a sectional view taken along line IV-IV shown in FIG. 6. 12: Frame, 14: Movable clip. 18.22: first and second straight path, 20: base member, 24: jaw holder, 66; elongated hole,
Ro8: Guide part, 42: Lower jaw, 44: A, e jaw, 54.60: Roller, 54a, 60a
: Rotating shaft, 56: Lifting member, 62: Vibration shaft,
62a: Flat surface, 66: Cam mechanism, 68: Swing shaft, 70: Ball joint. 72: Arm member + 80.82, 76.78: Cam device. Agent Patent Attorney Nobuyuki Matsunaga

Claims (2)

[Claims] (1) a movable grip for clamping a strip of workpiece material to be sent to a press, the movable grip being supported on a frame and extending along a first linear path VC toward the press; reciprocating motion 1--a base member provided with an elongated hole extending in a direction perpendicular to the first linear path and penetrating the base member in the vertical direction; a jaw holder, comprising a lower jaw guide portion that is inserted into the jaw holder, the jaw holder being supported by the opposite back portion and reciprocating along a second linear path perpendicular to the first linear path; a lower jaw, which has a rotary shaft supported in the first iH wire path and projects downward from the guide portion; and a roller that cooperates with the lower jaw to clamp the workpiece. an upper jaw supported by the jaw holder above the lower jaw; and an upper jaw extending along the second linear path and movable in a vertical direction relative to the base member to engage the roller below the base member. an elevating member that is supported and has a rotational axis along the second linear path at both ends; a pair of vibrating shafts that extend freely and are rotatably supported about their longitudinal axes; A material feeding device for a press, which is equipped with a cam mechanism that vibrates around the . (2) The cam mechanism includes a swing shaft that is fixed to the vibration shaft and extends outward in the radial direction of the vibration shaft, and a swing shaft that is connected to the swing shaft via a ball joint and extends angularly with respect to the vibration shaft. The material supply device according to claim 1, comprising an arm member and a cam device for imparting reciprocating motion to the arm member in its longitudinal direction.