JPH0613197Y2 - Covering device for protective paper on plate material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to an apparatus for coating a plate material with a protective paper in order to protect the surface of the plate material.

(Prior Art) Conventionally, for example, a plate-shaped product that has been edge-cut by a shearing machine, a plate-shaped product that has been processed by a punching press, etc. are usually stacked as they are at the stacking position. is there. Therefore, there is a problem that scratches are likely to occur on the upper surface of the plate material when the plate-shaped materials are accumulated. Therefore, in the past, when stacking a next plate material on a plate material that has been previously stacked, air is blown between the next plate material and the stacked plate materials to stack the plate materials in a floating state. There is.

(Problems to be Solved by the Invention) As described above, in order to perform plate material accumulation in a mode in which air is blown between the previously accumulated plate material and the next plate material to float the plate material, the blown air is It must be held so that it does not escape to the surroundings. However, since it is difficult to hold the air so as not to escape, there is a problem that a large-capacity blower is required. Further, there is a problem in that it is difficult to carry out when air easily escapes because, for example, many holes are formed in the plate material or large holes are provided.

[[Constitution of Invention] (Means for Solving Problems) In order to solve the above-mentioned conventional problems, the present invention provides a protective paper feeding device for feeding protective paper wound on a roll to a plate material covering position. A cutter device that cuts the protective sheet to a desired size; a protective sheet holding device that holds the protective sheet in a state where one end of the sheet material covering device crosses a pass line of the sheet material; and a sheet material to the sheet material covering position. And a plate material carry-in device for carrying in the sheet material, and between the protective paper holding device and the plate material carry-in device, when the protective paper is not held in the protective paper holding device, it projects to the pass line to temporarily hold the plate material. It is provided with a stopper that functions to stop.

(Embodiment) Referring to FIG. 1, FIG. 1 conceptually illustrates an overall configuration of a processing apparatus for processing a plate material. A work table 3 is arranged in front of a plate material processing machine 1 such as a shearing machine or a punch press which performs appropriate processing on a plate material. The work table 3 is provided with a rotary table (not shown) capable of horizontally rotating a placed plate material (not shown), and
A plate material moving / positioning device (not shown) capable of moving and positioning the plate material in the front-rear, left-right direction relative to the processing position of the plate material processing machine 1 is provided. Further, on the rear side of the plate material processing machine 1, there is arranged a receiving table 5 for receiving the product or scrap processed by the plate material processing machine 1.

A plate material supply area 7 is provided on one side of the work table 3. In the plate material supply region 7, a plurality of material carts 9 that can be positioned alternately at the plate material supply position are arranged. Further, the plate material supply area 7 is provided with a plate material separating / conveying device (not shown) which separates the plate materials accumulated on the material carriage 9 one by one and conveys them to the work table 3. The configurations of the material cart 9 and the plate material separating / conveying device may be publicly known ones, and the detailed description thereof will be omitted.

On the other side of the work table 3, when accumulating plate materials appropriately processed by the plate material processing machine 1,
A covering device 11 for covering the plate material with a protective sheet is arranged.

Referring to FIG. 2, the plate material W is conceptually shown.
The coating device 11 for coating the protective paper 13 on the
A roll 15 around which the protective paper 13 is wound is rotatably provided. Further, the covering device 11 is provided with a protective paper feeding device 19 for sending the protective paper 13 from the roll 15 to the plate material covering position 17, and the protective paper 13 is provided.
A cutter device 21 is provided for cutting to a desired size.

Further, the covering device 11 is provided with a protective paper holding device 23 that holds the protective paper 13 in the state in which one end of the protective paper 13 crosses the path line of the plate material W in the plate material covering device 17, and covers the plate material W with the plate material. A plate material carry-in device 25 for carrying in the position 17 is provided.

More specifically, the roll 15 is rotatably supported by a frame 27, and the rotation shaft of the roll 15 is connected to a torque motor 29. Therefore, when the protective paper 13 is delivered by the protective paper delivery device 19, the protective paper 13 is appropriately tensioned and held. In this embodiment, the roll 15 is arranged above the pass line of the plate W, but the roll 15 may be arranged below the pass line.

The protective paper feeding device 19 includes first and second pinch roll devices 31 and 33 that serve to pull out the protective paper 13 from the roll 15.

More specifically, the first pinch roll device 31 is arranged relatively close to the roll 15 and has a function of pressing the protective sheet 13 and sending it out, and is appropriately connected to a motor. ing. A second pinch roll device 33 is arranged at a position appropriately separated from the first pinch roll device 31.
A pulse encoder 35 for measuring the delivery length of the protective paper 13 is interlocked with 3.

At a position close to the second pinch roll device 33,
An optical sensor 37 that detects the leading end of the protection sheet 13 is provided. In addition, the first and second pinch rolls 3
The cutter device 21 for cutting the protective paper 13 is arranged between the first and the third parts.

In the above configuration, when the sensor 37 detects the leading end of the protective paper 13 and the preset counter counts the number of pulses from the pulse encoder 35, it is measured that the protective paper 13 has been sent to a predetermined size. The cutter device 21 is operated, and the protective paper 13 is cut into a predetermined size. That is, the protective paper 13 can be cut into any size according to the length of the plate W.

Although the cutter device 21 is arranged between the first and second pinch rolls 31 and 33 in the present embodiment, the cutter device 21 may be arranged at the position of the sensor 37. is there. In this way, the cutter device 2
When 1 is arranged on the downstream side of the first pinch roll device 33, the sensor 37 can be omitted.

An electrostatic generator 39 for charging the protective paper 13 with static electricity is arranged at a position close to the sensor 37. Therefore, by holding the protective paper 13 in a charged state and attaching it to the plate W, the protective paper 13
The adhesiveness of is improved. The electrostatic generator 39 is not always necessary and may be omitted in some cases.

A base of a swinging member 41 is pivotally supported on the frame 27 in order to guide the protective paper 13 to the plate material covering position 17. At the tip of the swinging member 41, the protective paper 13 is
Suction tool 4 connected to a vacuum device to suck and adsorb
3 is attached. A pinion 45 is attached to the base of the swinging member 41, and a rack 49 reciprocated by a fluid pressure cylinder 47 is engaged with the pinion 45.

Therefore, by operating the fluid pressure cylinder 47 when the protection sheet 13 is fed out by a predetermined length and hung down and the suction tool 43 is suctioning the vicinity of the end of the protection sheet 13. , The swinging member 41 is the second
By rotating counterclockwise in the figure, the protective paper 13 can be delivered to the protective paper holding device 23 at the plate material covering position 17.

The plate material covering position 17 is a place where the plate material W is covered with the protective paper 13, and the plate material carrying-in device 2 is provided at the plate material covering position 17.
5 is provided with a stopper 51 that can temporarily stop the plate material W that is carried in.
3 is provided. The stopper 51 is protruded / retracted to / from the pass line of the plate material W by the operation of a fluid pressure cylinder (not shown). When the protective sheet 13 is not held by the protective sheet holding device 23, the stopper 51 projects to the pass line. In this state, the plate W is temporarily stopped.

The protective sheet holding device 23 has a suction portion 5 for sucking and suctioning the protective sheet 13 on the surface facing the stopper 51.
3 is provided. The suction unit 53 is connected to an appropriate vacuum device in order to suck and suck the protective paper 13. A pressure roller 55 for pressing the protection sheet 13 onto the plate W is provided above the protection sheet holding device 23 so as to be vertically movable, and is biased downward by an appropriate biasing device such as a spring or a fluid pressure cylinder. There is.

In the plate material carry-in device 25, in the flow direction of the plate material W,
It is arranged on the upstream side of the plate material covering position 17. In the present embodiment, a conveyor 57 driven by a motor is illustrated in order to carry the plate material W into the plate material coating position 17. Further, the plate material carry-in device 25 is provided with a carrying device 59 for carrying the plate material W from the work table 3 to the conveyor 57.

The transfer device 59 includes a carriage 63 that can reciprocate between the upper position of the work table 3 and the upper position of the conveyor 51 along a guide rail 61 provided above the conveyor 57. A fluid pressure cylinder 65 is attached to the carriage 63, and a lifter member 69 provided with a large number of suction tools 67 such as vacuum cups capable of sucking the plate material W is movably supported up and down.

It will be understood that the above configuration allows the plate material W on the work table 3 to be easily transported onto the conveyor 57.

In the flow direction of the plate material W, the protective sheet holding device 23
A delivery pinch roll 73 for delivering the plate material W to the stacking table 71 is disposed on the downstream side of the. The accumulation table 71
Is configured to gradually descend when the plate materials W are stacked so that the height position of the uppermost part of the stacked plate materials W is always constant. The delivery pinch roll 73 performs a feeding action by pressing the plate material W, and is driven by a motor 75.

In the above configuration, the roll 15 to the protective paper 1
3 is pulled out, the protection paper 13 is charged with static electricity by the electrostatic generator 39, and when the protection paper 13 is held by the protection paper holding device 23, the plate material carry-in device 25 moves to the plate material covering position 17. When you bring in W,
The edge of the plate material W is hooked with the protective paper 13, and the upper surface of the plate material W is covered with the protective paper 13. After that, when the protective paper 13 is pulled out by the length corresponding to the length of the plate material W, it is cut by the cutter device 21. And
When the protective paper 13 is coated on the upper surface of the plate material W, it is brought into close contact with the upper surface by the action of static electricity.

After that, the protective paper 13 is applied to the plate material W by the pressing roller 55.
The plate material W in a state where it is reliably pressed against the upper surface of the sheet and the upper surface of which is covered with the protective sheet 13 is delivered to the stacking table 71 by the delivery pinch roll 73 and is stacked. At this time, since the upper surface of each plate W is covered with the protective paper 13, it is possible to prevent the upper surface of the plate W from being damaged.

By the way, the present invention is not limited to the above-described embodiments, but can be implemented in other modes by making appropriate changes. For example, in the configuration illustrated in FIG. 2, when the protective sheet 13 is vertically lowered from the roll 15 and the plate material covering position 17 is provided below the protective sheet 13, the swinging member 41 is omitted. Is also possible.

[Effects of the Invention] As will be understood from the above description of the embodiments, the present invention is, in short, a protection sheet feeding device 19 for feeding the protection sheet 13 wound around the roll 15 to the plate material covering position 17, and the protection sheet. Cutter device 21 for cutting 13 to a desired size
A protective sheet holding device 23 for holding the protective sheet 13 in a state where one end of the sheet W covers the pass line of the sheet W at the sheet coating position 17, and a sheet material loading device 25 for loading the sheet W into the sheet material coating position 17. And, between the protective sheet holding device 23 and the plate material carrying-in device 25, when the protective sheet 13 is not held by the protective sheet holding device 23, it projects to the pass line and temporarily stops the plate material W. A stopper 51 is provided which acts to reduce the force.

As is apparent from the above configuration, in the present invention, the protective sheet holding device 23 projects between the protective sheet holding device 23 and the plate material carrying-in device 25 in the pass line when the protective sheet 13 is not held by the protective sheet holding device 23. Since the stopper 51 having the function of temporarily stopping the plate material W is provided, for example, when the protective sheet 13 is lost or broken, and the supply of the protective sheet 13 to the protective sheet holding device 23 is delayed, Even if there is, it is possible to reliably cover the plate material W with the protective paper 13.

[Brief description of drawings]

FIG. 1 is an explanatory view conceptually showing the layout configuration of the entire processing apparatus. FIG. 2 is an explanatory view conceptually illustrating the device according to this embodiment. 15 ... Roll, 13 ... Protective paper 17 ... Plate material covering position, 19 ... Protective paper feeding device 21 ... Cutter device, 23 ... Protective paper holding device 25 ... Plate material carry-in device

Claims (1)

[Scope of utility model registration request] 1. A protective paper (1) wound around a roll (15).
3) to a plate material coating device (17), a protective paper feeding device (19), a cutter device (21) for cutting the protective paper (13) to a desired size, and the plate material coating device (1)
In 7), the protective sheet holding device (23) for holding the protective sheet (13) in a state where one end of the plate material (W) crosses the pass line, and the sheet material (W) is carried into the plate material coating device (17). A plate material carry-in device (25) for carrying out the protective paper holding device (23) and the plate material carry-in device (2).
5) and a stopper (5) which has a function of protruding to the pass line and temporarily stopping the plate material (W) when the protective sheet is not held by the protective sheet holding device (23).
1) The protective sheet covering device for a plate material, characterized in that: