JP3013415B2 - Cutting equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a cutting device.

[Prior Art] A conventional cutting device is described in, for example, JP-A-52-98286 and JP-A-52-98287.

 Hereinafter, a conventional cutting device will be described with reference to FIG.

Inside the housing 1, upper and lower drum chockes 4, 5 for rotatably supporting the knife drums 2, 3 are provided so as to be able to move up and down.

The upper drum chock 4 is connected to a rotating shaft 6 rotatably supported by the housing 1 via an eccentric wheel 7 and a connecting rod 8 so as to be movable up and down.

The lower drum chock 5 is supported on the housing 1 so as to be able to move up and down by an elevating cylinder 9 extending in the up-down direction.

Reference numeral 10 denotes a balance cylinder provided between the upper and lower drum chocks 4 and 5.

When cutting rolled material, the upper and lower knife drums 2, 3
Are rotated in synchronism with the stopped state, and simultaneously the rotary shaft 6 is driven to rotate, thereby moving the upper drum chock 4 up and down via the eccentric wheel 7 and the connecting rod 8 to rotate the knife drums 2 and 3 When the speed is equal to the feed speed of the rolled material and the upper drum chock 4 is lowered, the elevating cylinder 9 is extended to move the lower drum chock 5 upward, and the rolled material is moved between the upper and lower knife drums 2 and 3. Disconnect.

As described above, when the rolled material is not cut, the upper and lower drum chocks 4, 5 are separated from each other, and only when the rolled material is cut, the upper and lower drum chocks 4, 5 are brought close to each other. It is possible to pass a rolled material such as a strip without trouble.

[Problems to be Solved by the Invention] However, the conventional cutting device has the following problems.

That is, since the upper and lower knife drums 2 and 3 are moved up and down by separate lifting and lowering driving mechanisms, two lifting and lowering driving mechanisms are required, and the raising and lowering operation of the knife drums 2 and 3 by the two lifting and lowering driving mechanisms is required. It was difficult to tune.

The present invention has been made in view of the above circumstances, and has as its object to provide a cutting device capable of unifying a lifting drive mechanism.

[Means for Solving the Problems] According to the present invention, upper and lower drum chockes for rotatably supporting a knife drum are disposed inside a housing so as to be able to move up and down,
A column is projected upward from the lower drum chock, the column movably penetrates the upper drum chock, and an elevating plate capable of moving up and down inside the housing is fixed near the upper end of the column. Stop means for interposing an up-and-down moving mechanism vertically movable between the chock and the elevating plate, stopping the upper drum chock at the rolled material cutting position in the housing, and the lower limit position of the lower drum chock The present invention relates to a cutting device provided with a stopping means for defining the cutting device.

According to the present invention, when the elevating drive mechanism is extended and extended, the upper drum chock is stopped by the stop means using the elevating plate integrated with the lower drum chock whose descent is restricted by the stop means as a foothold. When the upper drum chock is stopped by the stopping means, the lower drum chock is raised together with the lifting plate using the upper drum chock as a foothold, and as a result, the rolled material is supported by the upper and lower drum chock. It is cut by a knife drum.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

 1 to 3 show an embodiment of the present invention.

Also, in the drawing, the basic configuration of the cutting device and details of each component may include the same components as those shown in FIG. 4, so that the same components are denoted by the same reference numerals. The description will be omitted by referring to FIG. 4 and the description thereof with reference to FIG. 4, and only the configuration specific to the present invention will be described below.

As shown in FIG. 1, the lower end of a column 12 extending in the up-down direction 11 is fixed to a lower drum chock 5 by a pin 13 so as to be pivotally fixed, and the column 12 is formed in a through hole 14 formed in the upper drum chock 4. A lifting plate 15 that can move up and down inside the housing 1 is fixed to the upper end of the column 12 so that it can move freely, and a hydraulic cylinder or the like that can expand and contract vertically between the upper drum chock 4 and the lifting plate 15 Lifting drive mechanism
Intermediate 16

Rolled material passing position inside the housing (rolled material cutting position)
17 is provided with a stopper as a stopping means for restricting the lowering of the upper drum chock 4, and a stopper 19 is provided at a lower portion inside the housing 1 as a stopping means for defining a lower limit position of the lower drum chock 5.

As shown in FIG. 2, extension portions 20, 21 are formed at both ends of the upper and lower knife drums 2, 3, and when the knife drums 2, 3 come close to the extension portions 20, 21, they are engaged with each other. Gears 22 and 23 that separate when 3 separates are fitted.

The upper and lower knife drums 2 and 3 are connected to a motor 27 via a coupling 24, a constant speed pinion stand 25, and a universal joint 26.

Furthermore, as shown in FIG. 3, the rolled material from a tracking sensor 29 for measuring the winding length of the rolled material attached to a down coiler 28 provided downstream of the housing 1 in the rolled material feed direction. A servo valve 33 that inputs a winding length signal 30 and a knife position signal 32 from a knife position sensor 31 such as a rotary encoder attached to the knife drums 2 and 3 and supplies pressure oil to the lifting drive mechanism 16. An operation control device 35 for outputting a command signal 34 is provided.

In the drawing, reference numeral 36 denotes a pinch roll disposed on the downstream side of the housing 1 in the rolled material feeding direction.

 Next, the operation will be described.

First, the lifting drive mechanism 16 is contracted, the upper and lower drum chockes 4 and 5 are separated from each other, and the lower drum chock 5 is placed on the stopper 19, and the upper and lower drum chock 4, 5 By passing the rolled material between the five, the rolled material is wound up by the down coiler 28 provided on the downstream side in the feed direction.

By setting the drum chocks 4 and 5 apart from each other as described above, it is possible to pass a rolled material such as a hot strip having a large warp at the end without any trouble. Also, at this time, the extension portions 20,
Gears 22 and 23 fitted to 21 are separated from each other.

When cutting a rolled material such as a hot strip that is being conveyed at a high speed, drive the motor 27 and drive the coupling 24 and the constant-speed pinion stand sufficiently before cutting the rolled material.
25, The upper and lower knife drums 2 and 3 are rotated via the universal joint 26, and the rotation speed of the upper and lower knife drums 2 and 3 is made to match the transport speed of the rolled material.

In the down coiler 28 provided downstream of the housing 1 in the rolled material feeding direction, a tracking sensor 29 detects the winding length of the rolled material, and the tracking sensor 29 winds the rolled material of a required length. Is output to the arithmetic and control unit 35, the arithmetic and control unit 35 outputs a knife position signal 32 from a knife position sensor 31 such as a rotary encoder attached to the knife drums 2 and 3. Timed by a knife drum
The command signal 34 is output to the servo valve 33 and the lifting / lowering drive mechanism 16 is output during a period from when the positions of the knives 2 and 3 pass through the cutting positions facing each other and before they make a circuit and reach the next cutting device again. Supply pressurized oil.

Then, the lifting drive mechanism 16 to which the pressurized oil is supplied extends and moves, and firstly, the lifting drive mechanism 16 contacts the stopper 18 with the lifting plate 15 integrated with the lower drum chock 5 whose lowering is regulated by the stopper 19 as a scaffold. Lower the upper drum chock 4 until it stops, and the upper drum chock 4
When the descent is stopped by 18, the lower drum chock 5 is raised via the lifting plate 15 and the column 12 using the upper drum chock as a foothold.

As a result, first, the extension portions 20 of the upper and lower knife drums 2, 3
Gears 22 and 23 provided on 21 mesh with the upper and lower knife drums
In this state, the knives of the upper and lower knife drums 2 and 3 are engaged to cut the rolled material.

According to the present invention, the above-described structure allows the lifting drive mechanism 16 to be a single system, and the single vertical lifting drive mechanism 16 allows the upper and lower drum chock 4, 5 to be easily mounted. The lifting operation can be synchronized.

In addition, since the raising and lowering operations of the upper and lower drum chocks 4, 5 are easily synchronized by a single system of the raising and lowering drive mechanism 16, the speed of the movement is increased, so that the upper and lower knife drums 2, 3 are made to match the conveying speed of the rolled material in advance. By rotating the rolled material, it is possible to cut the rolled material at high speed.

It should be noted that the present invention is not limited only to the above-described embodiment, and it is needless to say that various changes can be made without departing from the scope of the present invention.

[Effects of the Invention] As described above, according to the cutting device of the present invention, a single lifting and lowering drive mechanism can be used, and the vertical movement of the upper and lower drum chock can be easily performed by integrating the single lifting and lowering drive mechanism. Can be tuned.

[Brief description of the drawings]

1 is a side view of one embodiment of the present invention, FIG. 2 is a side sectional view of FIG. 1, FIG. 3 is a control circuit diagram, and FIG. 4 is a side view of a conventional example. In the figure, 1 is a housing, 2 and 3 are knife drums, 4 and 5 are drum chocks, 11 is a vertical direction, 12 is a column, 15 is a lifting plate, 16 is a lifting drive mechanism, and 17 is a rolled material indicating a rolled material cutting position. The passing positions, 18 and 19, indicate stoppers as stopping means.

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Satoru Kumabe 1 Shin-Nakahara-cho, Isogo-ku, Yokohama-shi, Kanagawa Pref. Ishikawajima-Harima Heavy Industries Co., Ltd. Yokohama No. 2 Factory (56) References (58) Field surveyed (Int.Cl. ⁷ , DB name) B23D 25/12

Claims (1)

(57) [Claims] An upper and lower drum chock for rotatably supporting a knife drum is disposed inside a housing so as to be able to move up and down.
A column is projected upward from the lower drum chock, the column movably penetrates the upper drum chock, and an elevating plate capable of moving up and down inside the housing is fixed near the upper end of the column. Stop means for interposing an up-and-down moving mechanism vertically movable between the chock and the elevating plate, stopping the upper drum chock at the rolled material cutting position in the housing, and the lower limit position of the lower drum chock A cutting device provided with a stopping means for defining the cutting force.