JP2501280B2 - Workpiece feeding pinch roller device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pinch roller device for feeding a work material, and particularly to a work material for feeding a work material by a pinch roller system in processing a long work material by a press machine or the like. The present invention relates to a feed pinch roller device.

[0002]

2. Description of the Related Art When processing a long work piece such as a channel steel material by a press machine, the feed of the work piece in the pass line direction is performed by a pinch roller device for feeding the work piece arranged on the side of the press machine. Conventionally, the pinch roller method is used.

A conventional work material feeding pinch roller device is a pair of pinch rollers, that is, a lower pinch roller fixedly arranged at a predetermined reference height position, and a pinch roller on the lower side. Direction of sandwiching processed material (vertical direction)
And an upper pinch roller movably provided to
The work piece is pressed against the lower pinch roller by the upper pinch roller, and the work material is conveyed in the pass line direction at a predetermined reference height position by the rotation of these pinch rollers.

[0004]

In the conventional pinch roller device for feeding the work piece as described above, the feed height position of the work piece is constant, which means that the work path line height of the working machine such as a press machine is high. Set to the position.

Therefore, in the conventional pinch roller device for feeding a work piece, even if a burr or the like is generated on the work piece by the press working and it is caught by the lower die of the press, the work piece is transported over the burr. As described above, the pinch roller needs to be rotationally driven by a large driving force that overcomes the running resistance due to being caught, and this requires a large and powerful motor.

Further, in order to overcome the catch and convey the work material, it is necessary to considerably increase the pinch pressure of the work material by the pinch roller, which causes an increase in the size of the fluid pressure cylinder device for applying the pinch pressure, and It also causes damage such as pinch marks to the work material.

The present invention has been made by paying attention to the above-mentioned problems in the conventional work material feeding pinch roller device, and the work material is caught on the lower press die or the like at the time of completion of the processing. Even if it receives a large interference, the work material can be conveyed smoothly and reliably with a relatively low pinch pressure without giving a large running resistance, and a large and powerful pinch roller rotation drive motor or a large pinch pressure application An object of the present invention is to provide a work material feeding pinch roller device which does not require a fluid pressure cylinder device.

[0008]

SUMMARY OF THE INVENTION According to the present invention, the above-mentioned object is achieved by sandwiching a work piece by a pair of pinch rollers arranged laterally of a working device and rotating the pinch rollers to rotate the work piece. In a work material feeding pinch roller device for feeding a workpiece, a pinch roller on one side is rotatable so as to be movable in parallel to the base member in a direction orthogonal to the feed direction of the workpiece. A floating base member supported by the pinch roller supporting member, and a pinch roller supporting member rotatably supporting the pinch roller on the other side, the pinch roller supporting member being movably provided in parallel with the floating base member in the direction of pinching the workpiece by the pinch roller. A drive unit for moving the floating base member in parallel to the base member in a direction orthogonal to the feed direction of the workpiece, and the pinch roller support portion. And a driving device for moving a pinch roller supporting member for moving the workpiece in parallel with the floating base member in a pinching direction of the workpiece by a pinch roller. To be done.

[0009]

According to the above construction, the driving device for moving the pinch roller supporting member causes the pinch roller supporting member to move in parallel with the floating base member in the pinching direction of the material to be processed by the pinch roller. The work piece is sandwiched by the pinch roller of the member and the pinch roller of the support member of the pinch roller, and the floating base member moving drive device causes the floating base member to cross the base member at a direction orthogonal to the feed direction of the work material. By the parallel movement of the workpiece, the floating base member and the pinch roller support member are entirely floated while the work material is sandwiched by the pinch rollers, and the work material is lifted from the height position of the work path line of the processing device.

[0010]

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

FIG. 3 shows an embodiment in which the pinch roller device for feeding a workpiece according to the present invention is applied to a press working line of a press machine. In FIG. 3, reference numeral 1 indicates a press machine. The press machine 1 has a fixedly arranged bolster 3 and a slider 7 that is vertically driven by a hydraulic cylinder device 5, and a press lower die 9 is mounted on the bolster 3.
The upper press dies 11 are mounted on the sliders 7, respectively, and the press work is performed by the cooperation of the lower press dies 9 and the upper press dies 11.

On both sides of the press machine 1, there are provided work material feeding pinch roller devices 13 for conveying the work material W in the left-right direction in the drawing.

As shown in FIGS. 1 and 2, the work material feeding pinch roller device 13 has a base plate 17 fixedly mounted on a fixed base 15, and the base plate 1 has four corners at its four corners. A guide post 19 is fixedly installed upright. A floating base plate 21 is arranged on the base plate 17.

The floating base plate 21 has a bush 23.
Is engaged with the guide post 19 and guided by the guide post 19 to feed the workpiece W (horizontal direction in FIG. 2).
It is possible to translate in the vertical direction, which is the direction orthogonal to. A roller bracket 25 is mounted on the floating base plate 21, and the roller bracket 25 supports a lower pinch roller 29 by a shaft 27 so as to be rotatable at two positions in the left-right direction in FIG.

Above the floating base plate 21, there is provided an upper movable plate 33 which is engaged with the guide post 19 by a bush 31 so as to be vertically movable. The upper movable plate 33 is vertically movable in parallel with the floating base plate 21, an upper frame 35 is fixedly installed on the upper movable plate 33, and the upper frame 3 is fixed.
A pinch roller support bracket 39 is fixedly attached to the unit 5 by an upper cross plate 37.

The pinch roller support bracket 39 rotatably supports a roller drive shaft 41 by means of a rolling bearing 43, and an upper pinch roller 47 is fixedly mounted on the roller drive shaft 41 with a key 45 or the like. As shown in FIG. 2, the upper pinch roller 47 is arranged at an upper position corresponding to an intermediate portion between the two lower pinch rollers 29.

A motor 49 for driving the pinch roller to rotate is attached to the upper frame 35, and an output shaft 51 of the motor 49 is connected to the roller drive shaft 4 by a coupling 53.
1 is drivingly connected.

A fluid pressure cylinder device 55 for moving the pinch roller supporting member is attached to the floating base plate 21. The fluid pressure cylinder device 55 is fixedly connected to the upper movable plate 33 at the tip of the piston rod 57,
The upper movable plate 33, the upper frame 35, the upper cross plate 37, the pinch roller support bracket 39, the roller drive shaft 41, the upper pinch roller 47, and the motor 49 are vertically arranged with respect to the floating base plate 21, that is, the upper pinch roller 47. The workpiece W is translated and driven in parallel with the lower pinch roller 29.

A fluid pressure cylinder device 59 for moving the floating base member is attached to the floating base plate 21. The fluid pressure cylinder device 59 includes a piston rod 6
1. The floating base plate 21 and everything mounted on the floating base plate 21 are connected to the base plate 17 at the tip of 1 and are lowered in the vertical direction with respect to the base plate 17, that is, in the direction orthogonal to the feed direction of the workpiece W. A translation drive is provided between the position and the raised position.

The floating base plate 21 overlaps the base plate 17 in the lowered position as shown in FIG. 1, and the workpiece W on the lower pinch roller 29 is located at the work pass line height position of the press machine 1, that is, the lower position. It is located at a height position that matches the height position of the upper surface of the press die 9,
In the raised position as shown in FIG. 2, the workpiece W on the lower pinch roller 29 is located above the work pass line height position of the press machine 1, that is, at a height position above the upper surface of the lower press die 9. Thus, the installation height position is set together with the base plate 17.

According to the above-described structure, the fluid pressure cylinder device 55 moves the upper movable plate 33 in the vertical direction in parallel with the floating base plate 21, so that the lower pinch roller 29 of the floating base plate 21 and the upper movable plate are moved. An upper pinch roller 47 on the 33 side sandwiches the workpiece W in the vertical direction with a predetermined pinch pressure.

When the workpiece W is pressed, the fluid pressure cylinder device 59 positions the floating base plate 21 in the lowered position. In this state, the floating base plate 21 overlaps the base plate 17, and the workpiece W sandwiched between the lower pinch roller 29 and the upper pinch roller 47 is located at the work path line height position of the press machine 1 and is located at the lower position. The lower press die 9 is placed on the upper surface of the press die 9
Predetermined press working is performed by the upper press die 11.

At the time of feeding the workpiece W, first, the floating base plate 21 is moved up to the raised position by the fluid pressure cylinder device 59. In this state, the floating base plate 21, the lower pinch roller 29, the upper pinch roller 47, and the like mounted on the floating base plate 21 are all lifted up from the base plate 17, and the floating base plate 21 is sandwiched between the lower pinch roller 29 and the upper pinch roller 47 along with the lift. The work W to be processed floats vertically from the upper surface of the lower press die 9 and is separated from the lower press die 9, and the catch with the lower press die 9 is eliminated.

Next, the motor 49 drives the upper pinch roller 4
The lower pinch roller 29 is driven by rotating 7
The workpiece W sandwiched between the upper pinch roller 47 and the upper pinch roller 47 is fed in the left-right direction in FIGS. 2 and 3. At the time of this feeding, the workpiece W is separated from the lower press die 9 and the catch with the lower press die 9 is eliminated, so that the workpiece W is conveyed without being given a large running resistance.

When the workpiece W after the feeding is pressed, the floating base plate 21 is moved down to the lowered position by the fluid pressure cylinder device 59, and is sandwiched between the lower pinch roller 29 and the upper pinch roller 47. The workpiece W is placed on the upper surface of the lower press die 9 again.

Although the present invention has been described above in detail with respect to specific embodiments, the present invention is not limited thereto, and various embodiments are possible within the scope of the present invention. Will be apparent to those skilled in the art.

[0027]

As can be understood from the above description, according to the work material feeding pinch roller device of the present invention, the entire pinch roller support member including the floating base member and the upper movable plate is processed by the pinch roller. The material floats while being sandwiched, which lifts the work material from the height position of the work path line of the processing device and eliminates the interference due to being caught by the lower press die, etc. Since the feed is performed, even if the work material is caught by the lower press die etc. when the work is completed, it does not give a large running resistance, and the work material can be conveyed smoothly and reliably even with a relatively low pinch pressure. You will be told. This eliminates the need for a large and powerful pinch roller rotation driving motor or a large pinch pressure imparting fluid pressure cylinder device.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of a pinch roller device for feeding a work material according to the present invention.

FIG. 2 is a front view showing an embodiment of a pinch roller device for feeding a workpiece according to the present invention.

FIG. 3 is a front view showing an embodiment in which the pinch roller device for feeding a workpiece according to the present invention is applied to a press working line of a press machine.

[Explanation of symbols]

 1 Press Machine 9 Lower Press Mold 11 Upper Press Mold 13 Pinch Roller Device for Feeding Work Material 17 Base Plate 21 Floating Base Plate 29 Lower Pinch Roller 33 Upper Movable Plate 35 Upper Frame 39 Pinch Roller Bracket 49 Upper Pinch Roller 49 Motor 55 Fluid Pressure Cylinder Device 59 Fluid Pressure Cylinder Device

Claims (1)

(57) [Claims] 1. A work material feeding pinch roller device, which is arranged on the side of a work device, sandwiches a work material by a pair of pinch rollers, and feeds the work material by rotation of the pinch roller, wherein a base member is provided. A floating base member that is provided so as to be movable in parallel to the base member in a direction orthogonal to the feed direction of the workpiece, and rotatably supports a pinch roller on one side; A pinch roller support member that is provided so as to be able to move in parallel in the direction in which the work material is sandwiched by the rollers and rotatably supports the pinch roller on the other side; A drive unit for moving the floating base member for parallel movement in a direction orthogonal to the floating base member, and a pinch roller supporting member for moving the pinch roller support member to the floating base member. Workpiece feed pinch roller apparatus characterized by and a pinch roller support member moving drive device for translating the pinching direction of the workpiece.